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-rw-r--r--[l---------]src/libsystemd/Makefile113
-rw-r--r--src/libsystemd/include/systemd/_sd-common.h83
-rw-r--r--src/libsystemd/include/systemd/sd-bus-protocol.h102
-rw-r--r--src/libsystemd/include/systemd/sd-bus-vtable.h141
-rw-r--r--src/libsystemd/include/systemd/sd-bus.h455
-rw-r--r--src/libsystemd/include/systemd/sd-daemon.h289
-rw-r--r--src/libsystemd/include/systemd/sd-event.h142
-rw-r--r--src/libsystemd/include/systemd/sd-id128.h115
-rw-r--r--src/libsystemd/include/systemd/sd-journal.h174
-rw-r--r--src/libsystemd/include/systemd/sd-login.h245
-rw-r--r--src/libsystemd/include/systemd/sd-messages.h90
-rw-r--r--src/libsystemd/include/systemd/sd-utf8.h32
-rw-r--r--src/libsystemd/libsystemd-pkgconfig.xml12
-rw-r--r--src/libsystemd/sd-bus-errors.xml309
-rw-r--r--src/libsystemd/sd-bus.xml123
l---------src/libsystemd/sd-bus/Makefile1
-rw-r--r--src/libsystemd/sd-bus/busctl-introspect.c790
-rw-r--r--src/libsystemd/sd-bus/busctl-introspect.h32
-rw-r--r--src/libsystemd/sd-bus/busctl.c2086
-rw-r--r--src/libsystemd/sd-daemon.xml144
l---------src/libsystemd/sd-daemon/Makefile1
l---------src/libsystemd/sd-device/Makefile1
-rw-r--r--src/libsystemd/sd-event.xml187
l---------src/libsystemd/sd-event/Makefile1
l---------src/libsystemd/sd-hwdb/Makefile1
-rw-r--r--src/libsystemd/sd-id128.xml166
l---------src/libsystemd/sd-id128/Makefile1
-rw-r--r--src/libsystemd/sd-journal.xml133
-rw-r--r--src/libsystemd/sd-login.xml135
l---------src/libsystemd/sd-login/Makefile1
l---------src/libsystemd/sd-netlink/Makefile1
l---------src/libsystemd/sd-network/Makefile1
l---------src/libsystemd/sd-path/Makefile1
-rw-r--r--src/libsystemd/sd-path/sd-path.c638
l---------src/libsystemd/sd-resolve/Makefile1
l---------src/libsystemd/sd-utf8/Makefile1
-rw-r--r--src/libsystemd/sd_booted.xml95
-rw-r--r--src/libsystemd/sd_bus_creds_get_pid.xml566
-rw-r--r--src/libsystemd/sd_bus_creds_new_from_pid.xml353
-rw-r--r--src/libsystemd/sd_bus_default.xml312
-rw-r--r--src/libsystemd/sd_bus_error.xml389
-rw-r--r--src/libsystemd/sd_bus_error_add_map.xml173
-rw-r--r--src/libsystemd/sd_bus_message_append.xml264
-rw-r--r--src/libsystemd/sd_bus_message_append_array.xml213
-rw-r--r--src/libsystemd/sd_bus_message_append_basic.xml295
-rw-r--r--src/libsystemd/sd_bus_message_append_string_memfd.xml153
-rw-r--r--src/libsystemd/sd_bus_message_append_strv.xml116
-rw-r--r--src/libsystemd/sd_bus_message_get_cookie.xml146
-rw-r--r--src/libsystemd/sd_bus_message_get_monotonic_usec.xml181
-rw-r--r--src/libsystemd/sd_bus_negotiate_fds.xml200
-rw-r--r--src/libsystemd/sd_bus_new.xml189
-rw-r--r--src/libsystemd/sd_bus_path_encode.xml188
-rw-r--r--src/libsystemd/sd_bus_request_name.xml213
-rw-r--r--src/libsystemd/sd_event_add_child.xml246
-rw-r--r--src/libsystemd/sd_event_add_defer.xml216
-rw-r--r--src/libsystemd/sd_event_add_io.xml300
-rw-r--r--src/libsystemd/sd_event_add_signal.xml221
-rw-r--r--src/libsystemd/sd_event_add_time.xml313
-rw-r--r--src/libsystemd/sd_event_exit.xml163
-rw-r--r--src/libsystemd/sd_event_get_fd-glib-example.c68
-rw-r--r--src/libsystemd/sd_event_get_fd.xml140
-rw-r--r--src/libsystemd/sd_event_new.xml245
-rw-r--r--src/libsystemd/sd_event_now.xml146
-rw-r--r--src/libsystemd/sd_event_run.xml190
-rw-r--r--src/libsystemd/sd_event_set_watchdog.xml177
-rw-r--r--src/libsystemd/sd_event_source_get_event.xml100
-rw-r--r--src/libsystemd/sd_event_source_get_pending.xml167
-rw-r--r--src/libsystemd/sd_event_source_set_description.xml170
-rw-r--r--src/libsystemd/sd_event_source_set_enabled.xml179
-rw-r--r--src/libsystemd/sd_event_source_set_prepare.xml171
-rw-r--r--src/libsystemd/sd_event_source_set_priority.xml189
-rw-r--r--src/libsystemd/sd_event_source_set_userdata.xml119
-rw-r--r--src/libsystemd/sd_event_source_unref.xml142
-rw-r--r--src/libsystemd/sd_event_wait.xml346
-rw-r--r--src/libsystemd/sd_get_seats.xml164
-rw-r--r--src/libsystemd/sd_id128_get_machine.xml129
-rw-r--r--src/libsystemd/sd_id128_randomize.xml114
-rw-r--r--src/libsystemd/sd_id128_to_string.xml132
-rw-r--r--src/libsystemd/sd_is_fifo.xml200
-rw-r--r--src/libsystemd/sd_journal_add_match.xml216
-rw-r--r--src/libsystemd/sd_journal_enumerate_fields.xml161
-rw-r--r--src/libsystemd/sd_journal_get_catalog.xml137
-rw-r--r--src/libsystemd/sd_journal_get_cursor.xml144
-rw-r--r--src/libsystemd/sd_journal_get_cutoff_realtime_usec.xml145
-rw-r--r--src/libsystemd/sd_journal_get_data.xml235
-rw-r--r--src/libsystemd/sd_journal_get_fd.xml332
-rw-r--r--src/libsystemd/sd_journal_get_realtime_usec.xml141
-rw-r--r--src/libsystemd/sd_journal_get_usage.xml100
-rw-r--r--src/libsystemd/sd_journal_has_runtime_files.xml95
-rw-r--r--src/libsystemd/sd_journal_next.xml207
-rw-r--r--src/libsystemd/sd_journal_open.xml228
-rw-r--r--src/libsystemd/sd_journal_print.xml260
-rw-r--r--src/libsystemd/sd_journal_query_unique.xml212
-rw-r--r--src/libsystemd/sd_journal_seek_head.xml172
-rw-r--r--src/libsystemd/sd_journal_stream_fd.xml163
-rw-r--r--src/libsystemd/sd_listen_fds.xml257
-rw-r--r--src/libsystemd/sd_login_monitor_new.xml287
-rw-r--r--src/libsystemd/sd_machine_get_class.xml152
-rw-r--r--src/libsystemd/sd_notify.xml399
-rw-r--r--src/libsystemd/sd_pid_get_session.xml359
-rw-r--r--src/libsystemd/sd_seat_get_active.xml212
-rw-r--r--src/libsystemd/sd_session_is_active.xml359
-rw-r--r--src/libsystemd/sd_uid_get_state.xml230
-rw-r--r--src/libsystemd/sd_watchdog_enabled.xml169
-rw-r--r--src/libsystemd/src/Makefile342
-rw-r--r--src/libsystemd/src/sd-bus/DIFFERENCES (renamed from src/libsystemd/sd-bus/DIFFERENCES)0
-rw-r--r--src/libsystemd/src/sd-bus/GVARIANT-SERIALIZATION (renamed from src/libsystemd/sd-bus/GVARIANT-SERIALIZATION)0
l---------src/libsystemd/src/sd-bus/Makefile1
-rw-r--r--src/libsystemd/src/sd-bus/PORTING-DBUS1 (renamed from src/libsystemd/sd-bus/PORTING-DBUS1)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-bloom.c (renamed from src/libsystemd/sd-bus/bus-bloom.c)5
-rw-r--r--src/libsystemd/src/sd-bus/bus-bloom.h (renamed from src/libsystemd/sd-bus/bus-bloom.h)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-common-errors.c (renamed from src/libsystemd/sd-bus/bus-common-errors.c)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-common-errors.h (renamed from src/libsystemd/sd-bus/bus-common-errors.h)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-container.c (renamed from src/libsystemd/sd-bus/bus-container.c)7
-rw-r--r--src/libsystemd/src/sd-bus/bus-container.h (renamed from src/libsystemd/sd-bus/bus-container.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-control.c (renamed from src/libsystemd/sd-bus/bus-control.c)17
-rw-r--r--src/libsystemd/src/sd-bus/bus-control.h (renamed from src/libsystemd/sd-bus/bus-control.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-convenience.c (renamed from src/libsystemd/sd-bus/bus-convenience.c)5
-rw-r--r--src/libsystemd/src/sd-bus/bus-creds.c (renamed from src/libsystemd/sd-bus/bus-creds.c)38
-rw-r--r--src/libsystemd/src/sd-bus/bus-creds.h (renamed from src/libsystemd/sd-bus/bus-creds.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-dump.c (renamed from src/libsystemd/sd-bus/bus-dump.c)23
-rw-r--r--src/libsystemd/src/sd-bus/bus-dump.h (renamed from src/libsystemd/sd-bus/bus-dump.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-error.c (renamed from src/libsystemd/sd-bus/bus-error.c)11
-rw-r--r--src/libsystemd/src/sd-bus/bus-error.h (renamed from src/libsystemd/sd-bus/bus-error.h)4
-rw-r--r--src/libsystemd/src/sd-bus/bus-gvariant.c (renamed from src/libsystemd/sd-bus/bus-gvariant.c)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-gvariant.h (renamed from src/libsystemd/sd-bus/bus-gvariant.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-internal.c (renamed from src/libsystemd/sd-bus/bus-internal.c)7
-rw-r--r--src/libsystemd/src/sd-bus/bus-internal.h (renamed from src/libsystemd/sd-bus/bus-internal.h)15
-rw-r--r--src/libsystemd/src/sd-bus/bus-introspect.c (renamed from src/libsystemd/sd-bus/bus-introspect.c)9
-rw-r--r--src/libsystemd/src/sd-bus/bus-introspect.h (renamed from src/libsystemd/sd-bus/bus-introspect.h)4
-rw-r--r--src/libsystemd/src/sd-bus/bus-kernel.c (renamed from src/libsystemd/sd-bus/bus-kernel.c)29
-rw-r--r--src/libsystemd/src/sd-bus/bus-kernel.h (renamed from src/libsystemd/sd-bus/bus-kernel.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-match.c (renamed from src/libsystemd/sd-bus/bus-match.c)15
-rw-r--r--src/libsystemd/src/sd-bus/bus-match.h (renamed from src/libsystemd/sd-bus/bus-match.h)4
-rw-r--r--src/libsystemd/src/sd-bus/bus-message.c (renamed from src/libsystemd/sd-bus/bus-message.c)23
-rw-r--r--src/libsystemd/src/sd-bus/bus-message.h (renamed from src/libsystemd/sd-bus/bus-message.h)7
-rw-r--r--src/libsystemd/src/sd-bus/bus-objects.c (renamed from src/libsystemd/sd-bus/bus-objects.c)11
-rw-r--r--src/libsystemd/src/sd-bus/bus-objects.h (renamed from src/libsystemd/sd-bus/bus-objects.h)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-protocol.h (renamed from src/libsystemd/sd-bus/bus-protocol.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-signature.c (renamed from src/libsystemd/sd-bus/bus-signature.c)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-signature.h (renamed from src/libsystemd/sd-bus/bus-signature.h)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-slot.c (renamed from src/libsystemd/sd-bus/bus-slot.c)7
-rw-r--r--src/libsystemd/src/sd-bus/bus-slot.h (renamed from src/libsystemd/sd-bus/bus-slot.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-socket.c (renamed from src/libsystemd/sd-bus/bus-socket.c)31
-rw-r--r--src/libsystemd/src/sd-bus/bus-socket.h (renamed from src/libsystemd/sd-bus/bus-socket.h)2
-rw-r--r--src/libsystemd/src/sd-bus/bus-track.c (renamed from src/libsystemd/sd-bus/bus-track.c)7
-rw-r--r--src/libsystemd/src/sd-bus/bus-track.h (renamed from src/libsystemd/sd-bus/bus-track.h)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-type.c (renamed from src/libsystemd/sd-bus/bus-type.c)0
-rw-r--r--src/libsystemd/src/sd-bus/bus-type.h (renamed from src/libsystemd/sd-bus/bus-type.h)4
-rw-r--r--src/libsystemd/src/sd-bus/kdbus.h (renamed from src/libsystemd/sd-bus/kdbus.h)0
-rw-r--r--src/libsystemd/src/sd-bus/sd-bus.c (renamed from src/libsystemd/sd-bus/sd-bus.c)31
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-benchmark.c (renamed from src/libsystemd/sd-bus/test-bus-benchmark.c)15
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-chat.c (renamed from src/libsystemd/sd-bus/test-bus-chat.c)17
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-cleanup.c (renamed from src/libsystemd/sd-bus/test-bus-cleanup.c)7
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-creds.c (renamed from src/libsystemd/sd-bus/test-bus-creds.c)7
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-error.c (renamed from src/libsystemd/sd-bus/test-bus-error.c)7
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-gvariant.c (renamed from src/libsystemd/sd-bus/test-bus-gvariant.c)11
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-introspect.c (renamed from src/libsystemd/sd-bus/test-bus-introspect.c)3
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-kernel-bloom.c (renamed from src/libsystemd/sd-bus/test-bus-kernel-bloom.c)13
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-kernel.c (renamed from src/libsystemd/sd-bus/test-bus-kernel.c)13
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-marshal.c (renamed from src/libsystemd/sd-bus/test-bus-marshal.c)17
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-match.c (renamed from src/libsystemd/sd-bus/test-bus-match.c)7
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-objects.c (renamed from src/libsystemd/sd-bus/test-bus-objects.c)15
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-server.c (renamed from src/libsystemd/sd-bus/test-bus-server.c)11
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-signature.c (renamed from src/libsystemd/sd-bus/test-bus-signature.c)5
-rw-r--r--src/libsystemd/src/sd-bus/test-bus-zero-copy.c (renamed from src/libsystemd/sd-bus/test-bus-zero-copy.c)15
l---------src/libsystemd/src/sd-daemon/Makefile1
-rw-r--r--src/libsystemd/src/sd-daemon/sd-daemon.c (renamed from src/libsystemd/sd-daemon/sd-daemon.c)20
l---------src/libsystemd/src/sd-device/Makefile1
-rw-r--r--src/libsystemd/src/sd-device/device-enumerator-private.h (renamed from src/libsystemd/sd-device/device-enumerator-private.h)0
-rw-r--r--src/libsystemd/src/sd-device/device-enumerator.c (renamed from src/libsystemd/sd-device/device-enumerator.c)18
-rw-r--r--src/libsystemd/src/sd-device/device-internal.h (renamed from src/libsystemd/sd-device/device-internal.h)4
-rw-r--r--src/libsystemd/src/sd-device/device-private.c (renamed from src/libsystemd/sd-device/device-private.c)36
-rw-r--r--src/libsystemd/src/sd-device/device-private.h (renamed from src/libsystemd/sd-device/device-private.h)0
-rw-r--r--src/libsystemd/src/sd-device/device-util.h (renamed from src/libsystemd/sd-device/device-util.h)2
-rw-r--r--src/libsystemd/src/sd-device/sd-device.c (renamed from src/libsystemd/sd-device/sd-device.c)30
-rw-r--r--src/libsystemd/src/sd-device/sd-device.h101
l---------src/libsystemd/src/sd-event/Makefile1
-rw-r--r--src/libsystemd/src/sd-event/sd-event.c (renamed from src/libsystemd/sd-event/sd-event.c)36
-rw-r--r--src/libsystemd/src/sd-event/test-event.c (renamed from src/libsystemd/sd-event/test-event.c)12
l---------src/libsystemd/src/sd-hwdb/Makefile1
-rw-r--r--src/libsystemd/src/sd-hwdb/hwdb-internal.h (renamed from src/libsystemd/sd-hwdb/hwdb-internal.h)4
-rw-r--r--src/libsystemd/src/sd-hwdb/hwdb-util.h (renamed from src/libsystemd/sd-hwdb/hwdb-util.h)4
-rw-r--r--src/libsystemd/src/sd-hwdb/sd-hwdb.c (renamed from src/libsystemd/sd-hwdb/sd-hwdb.c)12
-rw-r--r--src/libsystemd/src/sd-hwdb/sd-hwdb.h49
l---------src/libsystemd/src/sd-id128/Makefile1
-rw-r--r--src/libsystemd/src/sd-id128/sd-id128.c (renamed from src/libsystemd/sd-id128/sd-id128.c)16
-rw-r--r--src/libsystemd/src/sd-journal/Makefile37
-rw-r--r--src/libsystemd/src/sd-journal/audit-type.c31
-rw-r--r--src/libsystemd/src/sd-journal/audit-type.h37
-rw-r--r--src/libsystemd/src/sd-journal/catalog.c768
-rw-r--r--src/libsystemd/src/sd-journal/catalog.h36
-rw-r--r--src/libsystemd/src/sd-journal/compress.c684
-rw-r--r--src/libsystemd/src/sd-journal/compress.h85
-rw-r--r--src/libsystemd/src/sd-journal/fsprg.c374
-rw-r--r--src/libsystemd/src/sd-journal/fsprg.h65
l---------src/libsystemd/src/sd-journal/gcrypt-util.c1
l---------src/libsystemd/src/sd-journal/gcrypt-util.h1
-rw-r--r--src/libsystemd/src/sd-journal/journal-authenticate.c552
-rw-r--r--src/libsystemd/src/sd-journal/journal-authenticate.h41
-rw-r--r--src/libsystemd/src/sd-journal/journal-def.h233
-rw-r--r--src/libsystemd/src/sd-journal/journal-file.c3619
-rw-r--r--src/libsystemd/src/sd-journal/journal-file.h266
-rw-r--r--src/libsystemd/src/sd-journal/journal-internal.h144
-rw-r--r--src/libsystemd/src/sd-journal/journal-send.c559
-rw-r--r--src/libsystemd/src/sd-journal/journal-vacuum.c350
-rw-r--r--src/libsystemd/src/sd-journal/journal-vacuum.h27
-rw-r--r--src/libsystemd/src/sd-journal/journal-verify.c1295
-rw-r--r--src/libsystemd/src/sd-journal/journal-verify.h24
-rw-r--r--src/libsystemd/src/sd-journal/lookup3.c1009
-rw-r--r--src/libsystemd/src/sd-journal/lookup3.h22
-rw-r--r--src/libsystemd/src/sd-journal/mmap-cache.c726
-rw-r--r--src/libsystemd/src/sd-journal/mmap-cache.h49
-rw-r--r--src/libsystemd/src/sd-journal/sd-journal.c2987
l---------src/libsystemd/src/sd-login/Makefile1
-rw-r--r--src/libsystemd/src/sd-login/sd-login.c (renamed from src/libsystemd/sd-login/sd-login.c)42
-rw-r--r--src/libsystemd/src/sd-login/test-login.c (renamed from src/libsystemd/sd-login/test-login.c)16
l---------src/libsystemd/src/sd-netlink/Makefile1
-rw-r--r--src/libsystemd/src/sd-netlink/local-addresses.c (renamed from src/libsystemd/sd-netlink/local-addresses.c)6
-rw-r--r--src/libsystemd/src/sd-netlink/local-addresses.h (renamed from src/libsystemd/sd-netlink/local-addresses.h)4
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-internal.h (renamed from src/libsystemd/sd-netlink/netlink-internal.h)8
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-message.c (renamed from src/libsystemd/sd-netlink/netlink-message.c)14
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-socket.c (renamed from src/libsystemd/sd-netlink/netlink-socket.c)14
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-types.c (renamed from src/libsystemd/sd-netlink/netlink-types.c)10
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-types.h (renamed from src/libsystemd/sd-netlink/netlink-types.h)2
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-util.c (renamed from src/libsystemd/sd-netlink/netlink-util.c)3
-rw-r--r--src/libsystemd/src/sd-netlink/netlink-util.h (renamed from src/libsystemd/sd-netlink/netlink-util.h)4
-rw-r--r--src/libsystemd/src/sd-netlink/rtnl-message.c (renamed from src/libsystemd/sd-netlink/rtnl-message.c)12
-rw-r--r--src/libsystemd/src/sd-netlink/sd-netlink.c (renamed from src/libsystemd/sd-netlink/sd-netlink.c)16
-rw-r--r--src/libsystemd/src/sd-netlink/sd-netlink.h163
-rw-r--r--src/libsystemd/src/sd-netlink/test-local-addresses.c (renamed from src/libsystemd/sd-netlink/test-local-addresses.c)7
-rw-r--r--src/libsystemd/src/sd-netlink/test-netlink.c (renamed from src/libsystemd/sd-netlink/test-netlink.c)14
l---------src/libsystemd/src/sd-network/Makefile1
-rw-r--r--src/libsystemd/src/sd-network/network-util.c (renamed from src/libsystemd/sd-network/network-util.c)7
-rw-r--r--src/libsystemd/src/sd-network/network-util.h (renamed from src/libsystemd/sd-network/network-util.h)0
-rw-r--r--src/libsystemd/src/sd-network/sd-network.c (renamed from src/libsystemd/sd-network/sd-network.c)22
-rw-r--r--src/libsystemd/src/sd-network/sd-network.h176
l---------src/libsystemd/src/sd-resolve/Makefile1
-rw-r--r--src/libsystemd/src/sd-resolve/sd-resolve.c (renamed from src/libsystemd/sd-resolve/sd-resolve.c)16
-rw-r--r--src/libsystemd/src/sd-resolve/sd-resolve.h116
-rw-r--r--src/libsystemd/src/sd-resolve/test-resolve.c (renamed from src/libsystemd/sd-resolve/test-resolve.c)10
-rw-r--r--src/libsystemd/src/sd-utf8/sd-utf8.c (renamed from src/libsystemd/sd-utf8/sd-utf8.c)6
-rw-r--r--src/libsystemd/src/subdir.mk29
243 files changed, 32844 insertions, 4003 deletions
diff --git a/src/libsystemd/Makefile b/src/libsystemd/Makefile
index d0b0e8e008..479bcb6487 120000..100644
--- a/src/libsystemd/Makefile
+++ b/src/libsystemd/Makefile
@@ -1 +1,112 @@
-../Makefile \ No newline at end of file
+# -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2010-2012 Lennart Poettering
+# Copyright 2010-2012 Kay Sievers
+# Copyright 2013 Zbigniew Jędrzejewski-Szmek
+# Copyright 2013 David Strauss
+# Copyright 2016 Luke Shumaker
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+LIBSYSTEMD_CURRENT=15
+LIBSYSTEMD_REVISION=0
+LIBSYSTEMD_AGE=15
+
+EXTRA_DIST += \
+ src/libsystemd/libsystemd.pc.in \
+ src/libsystemd/sd-bus/DIFFERENCES \
+ src/libsystemd/sd-bus/GVARIANT-SERIALIZATION
+
+libsystemd_la_SOURCES = \
+ $(libsystemd_internal_la_SOURCES) \
+ $(libsystemd_journal_internal_la_SOURCES)
+
+nodist_libsystemd_la_SOURCES = \
+ $(nodist_libsystemd_internal_la_SOURCES)
+
+libsystemd_la_CFLAGS = \
+ $(libsystemd_internal_la_CFLAGS) \
+ $(libsystemd_journal_internal_la_CFLAGS)
+
+libsystemd_la_LDFLAGS = \
+ $(AM_LDFLAGS) \
+ -version-info $(LIBSYSTEMD_CURRENT):$(LIBSYSTEMD_REVISION):$(LIBSYSTEMD_AGE) \
+ -Wl,--version-script=$(srcdir)/libsystemd.sym
+
+libsystemd_la_LIBADD = \
+ $(libsystemd_internal_la_LIBADD) \
+ $(libsystemd_journal_internal_la_LIBADD)
+
+pkgconfiglib_DATA += \
+ src/libsystemd/libsystemd.pc
+
+pkginclude_HEADERS += \
+ src/systemd/sd-bus.h \
+ src/systemd/sd-bus-protocol.h \
+ src/systemd/sd-bus-vtable.h \
+ src/systemd/sd-event.h \
+ src/systemd/sd-login.h \
+ src/systemd/sd-id128.h \
+ src/systemd/sd-daemon.h
+
+lib_LTLIBRARIES += \
+ libsystemd.la
+
+# ------------------------------------------------------------------------------
+
+tests += \
+ test-bus-marshal \
+ test-bus-signature \
+ test-bus-benchmark \
+ test-bus-chat \
+ test-bus-cleanup \
+ test-bus-server \
+ test-bus-match \
+ test-bus-kernel \
+ test-bus-kernel-bloom \
+ test-bus-zero-copy \
+ test-bus-introspect \
+ test-bus-objects \
+ test-bus-error \
+ test-bus-creds \
+ test-bus-gvariant \
+ test-event \
+ test-netlink \
+ test-local-addresses \
+ test-resolve
+
+test-libsystemd-sym.c: \
+ $(top_builddir)/src/libsystemd/libsystemd.sym \
+ src/systemd/sd-journal.h \
+ src/systemd/sd-daemon.h \
+ src/systemd/sd-login.h \
+ src/systemd/sd-bus.h \
+ src/systemd/sd-utf8.h \
+ src/systemd/sd-resolve.h \
+ src/systemd/sd-path.h \
+ src/systemd/sd-event.h
+ $(generate-sym-test)
+
+nodist_test_libsystemd_sym_SOURCES = \
+ test-libsystemd-sym.c
+test_libsystemd_sym_LDADD = \
+ libsystemd.la
+
+nested.subdirs += src
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/libsystemd/include/systemd/_sd-common.h b/src/libsystemd/include/systemd/_sd-common.h
new file mode 100644
index 0000000000..3bb886be75
--- /dev/null
+++ b/src/libsystemd/include/systemd/_sd-common.h
@@ -0,0 +1,83 @@
+#ifndef foosdcommonhfoo
+#define foosdcommonhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+/* This is a private header; never even think of including this directly! */
+
+#if __INCLUDE_LEVEL__ <= 1
+#error "Do not include _sd-common.h directly; it is a private header."
+#endif
+
+#ifndef _sd_printf_
+# if __GNUC__ >= 4
+# define _sd_printf_(a,b) __attribute__ ((format (printf, a, b)))
+# else
+# define _sd_printf_(a,b)
+# endif
+#endif
+
+#ifndef _sd_sentinel_
+# define _sd_sentinel_ __attribute__((sentinel))
+#endif
+
+#ifndef _sd_packed_
+# define _sd_packed_ __attribute__((packed))
+#endif
+
+#ifndef _sd_pure_
+# define _sd_pure_ __attribute__((pure))
+#endif
+
+#ifndef _SD_STRINGIFY
+# define _SD_XSTRINGIFY(x) #x
+# define _SD_STRINGIFY(x) _SD_XSTRINGIFY(x)
+#endif
+
+#ifndef _SD_BEGIN_DECLARATIONS
+# ifdef __cplusplus
+# define _SD_BEGIN_DECLARATIONS \
+ extern "C" { \
+ struct _sd_useless_struct_to_allow_trailing_semicolon_
+# else
+# define _SD_BEGIN_DECLARATIONS \
+ struct _sd_useless_struct_to_allow_trailing_semicolon_
+# endif
+#endif
+
+#ifndef _SD_END_DECLARATIONS
+# ifdef __cplusplus
+# define _SD_END_DECLARATIONS \
+ } \
+ struct _sd_useless_cpp_struct_to_allow_trailing_semicolon_
+# else
+# define _SD_END_DECLARATIONS \
+ struct _sd_useless_struct_to_allow_trailing_semicolon_
+# endif
+#endif
+
+#define _SD_DEFINE_POINTER_CLEANUP_FUNC(type, func) \
+ static __inline__ void func##p(type **p) { \
+ if (*p) \
+ func(*p); \
+ } \
+ struct _sd_useless_struct_to_allow_trailing_semicolon_
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-bus-protocol.h b/src/libsystemd/include/systemd/sd-bus-protocol.h
new file mode 100644
index 0000000000..623cee0c50
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-bus-protocol.h
@@ -0,0 +1,102 @@
+#ifndef foosdbusprotocolhfoo
+#define foosdbusprotocolhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "_sd-common.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+/* Types of message */
+
+enum {
+ _SD_BUS_MESSAGE_TYPE_INVALID = 0,
+ SD_BUS_MESSAGE_METHOD_CALL,
+ SD_BUS_MESSAGE_METHOD_RETURN,
+ SD_BUS_MESSAGE_METHOD_ERROR,
+ SD_BUS_MESSAGE_SIGNAL,
+ _SD_BUS_MESSAGE_TYPE_MAX
+};
+
+/* Primitive types */
+
+enum {
+ _SD_BUS_TYPE_INVALID = 0,
+ SD_BUS_TYPE_BYTE = 'y',
+ SD_BUS_TYPE_BOOLEAN = 'b',
+ SD_BUS_TYPE_INT16 = 'n',
+ SD_BUS_TYPE_UINT16 = 'q',
+ SD_BUS_TYPE_INT32 = 'i',
+ SD_BUS_TYPE_UINT32 = 'u',
+ SD_BUS_TYPE_INT64 = 'x',
+ SD_BUS_TYPE_UINT64 = 't',
+ SD_BUS_TYPE_DOUBLE = 'd',
+ SD_BUS_TYPE_STRING = 's',
+ SD_BUS_TYPE_OBJECT_PATH = 'o',
+ SD_BUS_TYPE_SIGNATURE = 'g',
+ SD_BUS_TYPE_UNIX_FD = 'h',
+ SD_BUS_TYPE_ARRAY = 'a',
+ SD_BUS_TYPE_VARIANT = 'v',
+ SD_BUS_TYPE_STRUCT = 'r', /* not actually used in signatures */
+ SD_BUS_TYPE_STRUCT_BEGIN = '(',
+ SD_BUS_TYPE_STRUCT_END = ')',
+ SD_BUS_TYPE_DICT_ENTRY = 'e', /* not actually used in signatures */
+ SD_BUS_TYPE_DICT_ENTRY_BEGIN = '{',
+ SD_BUS_TYPE_DICT_ENTRY_END = '}'
+};
+
+/* Well-known errors. Note that this is only a sanitized subset of the
+ * errors that the reference implementation generates. */
+
+#define SD_BUS_ERROR_FAILED "org.freedesktop.DBus.Error.Failed"
+#define SD_BUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory"
+#define SD_BUS_ERROR_SERVICE_UNKNOWN "org.freedesktop.DBus.Error.ServiceUnknown"
+#define SD_BUS_ERROR_NAME_HAS_NO_OWNER "org.freedesktop.DBus.Error.NameHasNoOwner"
+#define SD_BUS_ERROR_NO_REPLY "org.freedesktop.DBus.Error.NoReply"
+#define SD_BUS_ERROR_IO_ERROR "org.freedesktop.DBus.Error.IOError"
+#define SD_BUS_ERROR_BAD_ADDRESS "org.freedesktop.DBus.Error.BadAddress"
+#define SD_BUS_ERROR_NOT_SUPPORTED "org.freedesktop.DBus.Error.NotSupported"
+#define SD_BUS_ERROR_LIMITS_EXCEEDED "org.freedesktop.DBus.Error.LimitsExceeded"
+#define SD_BUS_ERROR_ACCESS_DENIED "org.freedesktop.DBus.Error.AccessDenied"
+#define SD_BUS_ERROR_AUTH_FAILED "org.freedesktop.DBus.Error.AuthFailed"
+#define SD_BUS_ERROR_NO_SERVER "org.freedesktop.DBus.Error.NoServer"
+#define SD_BUS_ERROR_TIMEOUT "org.freedesktop.DBus.Error.Timeout"
+#define SD_BUS_ERROR_NO_NETWORK "org.freedesktop.DBus.Error.NoNetwork"
+#define SD_BUS_ERROR_ADDRESS_IN_USE "org.freedesktop.DBus.Error.AddressInUse"
+#define SD_BUS_ERROR_DISCONNECTED "org.freedesktop.DBus.Error.Disconnected"
+#define SD_BUS_ERROR_INVALID_ARGS "org.freedesktop.DBus.Error.InvalidArgs"
+#define SD_BUS_ERROR_FILE_NOT_FOUND "org.freedesktop.DBus.Error.FileNotFound"
+#define SD_BUS_ERROR_FILE_EXISTS "org.freedesktop.DBus.Error.FileExists"
+#define SD_BUS_ERROR_UNKNOWN_METHOD "org.freedesktop.DBus.Error.UnknownMethod"
+#define SD_BUS_ERROR_UNKNOWN_OBJECT "org.freedesktop.DBus.Error.UnknownObject"
+#define SD_BUS_ERROR_UNKNOWN_INTERFACE "org.freedesktop.DBus.Error.UnknownInterface"
+#define SD_BUS_ERROR_UNKNOWN_PROPERTY "org.freedesktop.DBus.Error.UnknownProperty"
+#define SD_BUS_ERROR_PROPERTY_READ_ONLY "org.freedesktop.DBus.Error.PropertyReadOnly"
+#define SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN "org.freedesktop.DBus.Error.UnixProcessIdUnknown"
+#define SD_BUS_ERROR_INVALID_SIGNATURE "org.freedesktop.DBus.Error.InvalidSignature"
+#define SD_BUS_ERROR_INCONSISTENT_MESSAGE "org.freedesktop.DBus.Error.InconsistentMessage"
+#define SD_BUS_ERROR_MATCH_RULE_NOT_FOUND "org.freedesktop.DBus.Error.MatchRuleNotFound"
+#define SD_BUS_ERROR_MATCH_RULE_INVALID "org.freedesktop.DBus.Error.MatchRuleInvalid"
+#define SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED \
+ "org.freedesktop.DBus.Error.InteractiveAuthorizationRequired"
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-bus-vtable.h b/src/libsystemd/include/systemd/sd-bus-vtable.h
new file mode 100644
index 0000000000..e8f84eb545
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-bus-vtable.h
@@ -0,0 +1,141 @@
+#ifndef foosdbusvtablehfoo
+#define foosdbusvtablehfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "_sd-common.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+typedef struct sd_bus_vtable sd_bus_vtable;
+
+#include "sd-bus.h"
+
+enum {
+ _SD_BUS_VTABLE_START = '<',
+ _SD_BUS_VTABLE_END = '>',
+ _SD_BUS_VTABLE_METHOD = 'M',
+ _SD_BUS_VTABLE_SIGNAL = 'S',
+ _SD_BUS_VTABLE_PROPERTY = 'P',
+ _SD_BUS_VTABLE_WRITABLE_PROPERTY = 'W'
+};
+
+enum {
+ SD_BUS_VTABLE_DEPRECATED = 1ULL << 0,
+ SD_BUS_VTABLE_HIDDEN = 1ULL << 1,
+ SD_BUS_VTABLE_UNPRIVILEGED = 1ULL << 2,
+ SD_BUS_VTABLE_METHOD_NO_REPLY = 1ULL << 3,
+ SD_BUS_VTABLE_PROPERTY_CONST = 1ULL << 4,
+ SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE = 1ULL << 5,
+ SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION = 1ULL << 6,
+ SD_BUS_VTABLE_PROPERTY_EXPLICIT = 1ULL << 7,
+ _SD_BUS_VTABLE_CAPABILITY_MASK = 0xFFFFULL << 40
+};
+
+#define SD_BUS_VTABLE_CAPABILITY(x) ((uint64_t) (((x)+1) & 0xFFFF) << 40)
+
+struct sd_bus_vtable {
+ /* Please do not initialize this structure directly, use the
+ * macros below instead */
+
+ uint8_t type:8;
+ uint64_t flags:56;
+ union {
+ struct {
+ size_t element_size;
+ } start;
+ struct {
+ const char *member;
+ const char *signature;
+ const char *result;
+ sd_bus_message_handler_t handler;
+ size_t offset;
+ } method;
+ struct {
+ const char *member;
+ const char *signature;
+ } signal;
+ struct {
+ const char *member;
+ const char *signature;
+ sd_bus_property_get_t get;
+ sd_bus_property_set_t set;
+ size_t offset;
+ } property;
+ } x;
+};
+
+#define SD_BUS_VTABLE_START(_flags) \
+ { \
+ .type = _SD_BUS_VTABLE_START, \
+ .flags = _flags, \
+ .x.start.element_size = sizeof(sd_bus_vtable), \
+ }
+
+#define SD_BUS_METHOD_WITH_OFFSET(_member, _signature, _result, _handler, _offset, _flags) \
+ { \
+ .type = _SD_BUS_VTABLE_METHOD, \
+ .flags = _flags, \
+ .x.method.member = _member, \
+ .x.method.signature = _signature, \
+ .x.method.result = _result, \
+ .x.method.handler = _handler, \
+ .x.method.offset = _offset, \
+ }
+#define SD_BUS_METHOD(_member, _signature, _result, _handler, _flags) \
+ SD_BUS_METHOD_WITH_OFFSET(_member, _signature, _result, _handler, 0, _flags)
+
+#define SD_BUS_SIGNAL(_member, _signature, _flags) \
+ { \
+ .type = _SD_BUS_VTABLE_SIGNAL, \
+ .flags = _flags, \
+ .x.signal.member = _member, \
+ .x.signal.signature = _signature, \
+ }
+
+#define SD_BUS_PROPERTY(_member, _signature, _get, _offset, _flags) \
+ { \
+ .type = _SD_BUS_VTABLE_PROPERTY, \
+ .flags = _flags, \
+ .x.property.member = _member, \
+ .x.property.signature = _signature, \
+ .x.property.get = _get, \
+ .x.property.offset = _offset, \
+ }
+
+#define SD_BUS_WRITABLE_PROPERTY(_member, _signature, _get, _set, _offset, _flags) \
+ { \
+ .type = _SD_BUS_VTABLE_WRITABLE_PROPERTY, \
+ .flags = _flags, \
+ .x.property.member = _member, \
+ .x.property.signature = _signature, \
+ .x.property.get = _get, \
+ .x.property.set = _set, \
+ .x.property.offset = _offset, \
+ }
+
+#define SD_BUS_VTABLE_END \
+ { \
+ .type = _SD_BUS_VTABLE_END, \
+ }
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-bus.h b/src/libsystemd/include/systemd/sd-bus.h
new file mode 100644
index 0000000000..4e338a3270
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-bus.h
@@ -0,0 +1,455 @@
+#ifndef foosdbushfoo
+#define foosdbushfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+
+#include "_sd-common.h"
+#include "sd-event.h"
+#include "sd-id128.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+/* Types */
+
+typedef struct sd_bus sd_bus;
+typedef struct sd_bus_message sd_bus_message;
+typedef struct sd_bus_slot sd_bus_slot;
+typedef struct sd_bus_creds sd_bus_creds;
+typedef struct sd_bus_track sd_bus_track;
+
+typedef struct {
+ const char *name;
+ const char *message;
+ int _need_free;
+} sd_bus_error;
+
+typedef struct {
+ const char* name;
+ int code;
+} sd_bus_error_map;
+
+/* Flags */
+
+enum {
+ SD_BUS_CREDS_PID = 1ULL << 0,
+ SD_BUS_CREDS_TID = 1ULL << 1,
+ SD_BUS_CREDS_PPID = 1ULL << 2,
+ SD_BUS_CREDS_UID = 1ULL << 3,
+ SD_BUS_CREDS_EUID = 1ULL << 4,
+ SD_BUS_CREDS_SUID = 1ULL << 5,
+ SD_BUS_CREDS_FSUID = 1ULL << 6,
+ SD_BUS_CREDS_GID = 1ULL << 7,
+ SD_BUS_CREDS_EGID = 1ULL << 8,
+ SD_BUS_CREDS_SGID = 1ULL << 9,
+ SD_BUS_CREDS_FSGID = 1ULL << 10,
+ SD_BUS_CREDS_SUPPLEMENTARY_GIDS = 1ULL << 11,
+ SD_BUS_CREDS_COMM = 1ULL << 12,
+ SD_BUS_CREDS_TID_COMM = 1ULL << 13,
+ SD_BUS_CREDS_EXE = 1ULL << 14,
+ SD_BUS_CREDS_CMDLINE = 1ULL << 15,
+ SD_BUS_CREDS_CGROUP = 1ULL << 16,
+ SD_BUS_CREDS_UNIT = 1ULL << 17,
+ SD_BUS_CREDS_SLICE = 1ULL << 18,
+ SD_BUS_CREDS_USER_UNIT = 1ULL << 19,
+ SD_BUS_CREDS_USER_SLICE = 1ULL << 20,
+ SD_BUS_CREDS_SESSION = 1ULL << 21,
+ SD_BUS_CREDS_OWNER_UID = 1ULL << 22,
+ SD_BUS_CREDS_EFFECTIVE_CAPS = 1ULL << 23,
+ SD_BUS_CREDS_PERMITTED_CAPS = 1ULL << 24,
+ SD_BUS_CREDS_INHERITABLE_CAPS = 1ULL << 25,
+ SD_BUS_CREDS_BOUNDING_CAPS = 1ULL << 26,
+ SD_BUS_CREDS_SELINUX_CONTEXT = 1ULL << 27,
+ SD_BUS_CREDS_AUDIT_SESSION_ID = 1ULL << 28,
+ SD_BUS_CREDS_AUDIT_LOGIN_UID = 1ULL << 29,
+ SD_BUS_CREDS_TTY = 1ULL << 30,
+ SD_BUS_CREDS_UNIQUE_NAME = 1ULL << 31,
+ SD_BUS_CREDS_WELL_KNOWN_NAMES = 1ULL << 32,
+ SD_BUS_CREDS_DESCRIPTION = 1ULL << 33,
+ SD_BUS_CREDS_AUGMENT = 1ULL << 63, /* special flag, if on sd-bus will augment creds struct, in a potentially race-full way. */
+ _SD_BUS_CREDS_ALL = (1ULL << 34) -1
+};
+
+enum {
+ SD_BUS_NAME_REPLACE_EXISTING = 1ULL << 0,
+ SD_BUS_NAME_ALLOW_REPLACEMENT = 1ULL << 1,
+ SD_BUS_NAME_QUEUE = 1ULL << 2
+};
+
+/* Callbacks */
+
+typedef int (*sd_bus_message_handler_t)(sd_bus_message *m, void *userdata, sd_bus_error *ret_error);
+typedef int (*sd_bus_node_enumerator_t) (sd_bus *bus, const char *prefix, void *userdata, char ***ret_nodes, sd_bus_error *ret_error);
+typedef int (*sd_bus_object_find_t) (sd_bus *bus, const char *path, const char *interface, void *userdata, void **ret_found, sd_bus_error *ret_error);
+typedef int (*sd_bus_property_get_t) (sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *ret_error);
+typedef int (*sd_bus_property_set_t) (sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *ret_error);
+typedef int (*sd_bus_track_handler_t) (sd_bus_track *track, void *userdata);
+
+#include "sd-bus-protocol.h"
+#include "sd-bus-vtable.h"
+
+/* Connections */
+
+int sd_bus_default(sd_bus **ret);
+int sd_bus_default_user(sd_bus **ret);
+int sd_bus_default_system(sd_bus **ret);
+
+int sd_bus_open(sd_bus **ret);
+int sd_bus_open_user(sd_bus **ret);
+int sd_bus_open_system(sd_bus **ret);
+int sd_bus_open_system_remote(sd_bus **ret, const char *host);
+int sd_bus_open_system_machine(sd_bus **ret, const char *machine);
+
+int sd_bus_new(sd_bus **ret);
+
+int sd_bus_set_address(sd_bus *bus, const char *address);
+int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd);
+int sd_bus_set_exec(sd_bus *bus, const char *path, char *const argv[]);
+int sd_bus_get_address(sd_bus *bus, const char **address);
+int sd_bus_set_bus_client(sd_bus *bus, int b);
+int sd_bus_is_bus_client(sd_bus *bus);
+int sd_bus_set_server(sd_bus *bus, int b, sd_id128_t bus_id);
+int sd_bus_is_server(sd_bus *bus);
+int sd_bus_set_anonymous(sd_bus *bus, int b);
+int sd_bus_is_anonymous(sd_bus *bus);
+int sd_bus_set_trusted(sd_bus *bus, int b);
+int sd_bus_is_trusted(sd_bus *bus);
+int sd_bus_set_monitor(sd_bus *bus, int b);
+int sd_bus_is_monitor(sd_bus *bus);
+int sd_bus_set_description(sd_bus *bus, const char *description);
+int sd_bus_get_description(sd_bus *bus, const char **description);
+int sd_bus_negotiate_creds(sd_bus *bus, int b, uint64_t creds_mask);
+int sd_bus_negotiate_timestamp(sd_bus *bus, int b);
+int sd_bus_negotiate_fds(sd_bus *bus, int b);
+int sd_bus_can_send(sd_bus *bus, char type);
+int sd_bus_get_creds_mask(sd_bus *bus, uint64_t *creds_mask);
+int sd_bus_set_allow_interactive_authorization(sd_bus *bus, int b);
+int sd_bus_get_allow_interactive_authorization(sd_bus *bus);
+
+int sd_bus_start(sd_bus *ret);
+
+int sd_bus_try_close(sd_bus *bus);
+void sd_bus_close(sd_bus *bus);
+
+sd_bus *sd_bus_ref(sd_bus *bus);
+sd_bus *sd_bus_unref(sd_bus *bus);
+sd_bus *sd_bus_flush_close_unref(sd_bus *bus);
+
+void sd_bus_default_flush_close(void);
+
+int sd_bus_is_open(sd_bus *bus);
+
+int sd_bus_get_bus_id(sd_bus *bus, sd_id128_t *id);
+int sd_bus_get_scope(sd_bus *bus, const char **scope);
+int sd_bus_get_tid(sd_bus *bus, pid_t *tid);
+int sd_bus_get_owner_creds(sd_bus *bus, uint64_t creds_mask, sd_bus_creds **ret);
+
+int sd_bus_send(sd_bus *bus, sd_bus_message *m, uint64_t *cookie);
+int sd_bus_send_to(sd_bus *bus, sd_bus_message *m, const char *destination, uint64_t *cookie);
+int sd_bus_call(sd_bus *bus, sd_bus_message *m, uint64_t usec, sd_bus_error *ret_error, sd_bus_message **reply);
+int sd_bus_call_async(sd_bus *bus, sd_bus_slot **slot, sd_bus_message *m, sd_bus_message_handler_t callback, void *userdata, uint64_t usec);
+
+int sd_bus_get_fd(sd_bus *bus);
+int sd_bus_get_events(sd_bus *bus);
+int sd_bus_get_timeout(sd_bus *bus, uint64_t *timeout_usec);
+int sd_bus_process(sd_bus *bus, sd_bus_message **r);
+int sd_bus_process_priority(sd_bus *bus, int64_t max_priority, sd_bus_message **r);
+int sd_bus_wait(sd_bus *bus, uint64_t timeout_usec);
+int sd_bus_flush(sd_bus *bus);
+
+sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus);
+sd_bus_message* sd_bus_get_current_message(sd_bus *bus);
+sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus);
+void* sd_bus_get_current_userdata(sd_bus *bus);
+
+int sd_bus_attach_event(sd_bus *bus, sd_event *e, int priority);
+int sd_bus_detach_event(sd_bus *bus);
+sd_event *sd_bus_get_event(sd_bus *bus);
+
+int sd_bus_add_filter(sd_bus *bus, sd_bus_slot **slot, sd_bus_message_handler_t callback, void *userdata);
+int sd_bus_add_match(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata);
+int sd_bus_add_object(sd_bus *bus, sd_bus_slot **slot, const char *path, sd_bus_message_handler_t callback, void *userdata);
+int sd_bus_add_fallback(sd_bus *bus, sd_bus_slot **slot, const char *prefix, sd_bus_message_handler_t callback, void *userdata);
+int sd_bus_add_object_vtable(sd_bus *bus, sd_bus_slot **slot, const char *path, const char *interface, const sd_bus_vtable *vtable, void *userdata);
+int sd_bus_add_fallback_vtable(sd_bus *bus, sd_bus_slot **slot, const char *prefix, const char *interface, const sd_bus_vtable *vtable, sd_bus_object_find_t find, void *userdata);
+int sd_bus_add_node_enumerator(sd_bus *bus, sd_bus_slot **slot, const char *path, sd_bus_node_enumerator_t callback, void *userdata);
+int sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot, const char *path);
+
+/* Slot object */
+
+sd_bus_slot* sd_bus_slot_ref(sd_bus_slot *slot);
+sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot);
+
+sd_bus* sd_bus_slot_get_bus(sd_bus_slot *slot);
+void *sd_bus_slot_get_userdata(sd_bus_slot *slot);
+void *sd_bus_slot_set_userdata(sd_bus_slot *slot, void *userdata);
+int sd_bus_slot_set_description(sd_bus_slot *slot, const char *description);
+int sd_bus_slot_get_description(sd_bus_slot *slot, const char **description);
+
+sd_bus_message* sd_bus_slot_get_current_message(sd_bus_slot *slot);
+sd_bus_message_handler_t sd_bus_slot_get_current_handler(sd_bus_slot *bus);
+void *sd_bus_slot_get_current_userdata(sd_bus_slot *slot);
+
+/* Message object */
+
+int sd_bus_message_new_signal(sd_bus *bus, sd_bus_message **m, const char *path, const char *interface, const char *member);
+int sd_bus_message_new_method_call(sd_bus *bus, sd_bus_message **m, const char *destination, const char *path, const char *interface, const char *member);
+int sd_bus_message_new_method_return(sd_bus_message *call, sd_bus_message **m);
+int sd_bus_message_new_method_error(sd_bus_message *call, sd_bus_message **m, const sd_bus_error *e);
+int sd_bus_message_new_method_errorf(sd_bus_message *call, sd_bus_message **m, const char *name, const char *format, ...) _sd_printf_(4, 5);
+int sd_bus_message_new_method_errno(sd_bus_message *call, sd_bus_message **m, int error, const sd_bus_error *e);
+int sd_bus_message_new_method_errnof(sd_bus_message *call, sd_bus_message **m, int error, const char *format, ...) _sd_printf_(4, 5);
+
+sd_bus_message* sd_bus_message_ref(sd_bus_message *m);
+sd_bus_message* sd_bus_message_unref(sd_bus_message *m);
+
+int sd_bus_message_get_type(sd_bus_message *m, uint8_t *type);
+int sd_bus_message_get_cookie(sd_bus_message *m, uint64_t *cookie);
+int sd_bus_message_get_reply_cookie(sd_bus_message *m, uint64_t *cookie);
+int sd_bus_message_get_priority(sd_bus_message *m, int64_t *priority);
+
+int sd_bus_message_get_expect_reply(sd_bus_message *m);
+int sd_bus_message_get_auto_start(sd_bus_message *m);
+int sd_bus_message_get_allow_interactive_authorization(sd_bus_message *m);
+
+const char *sd_bus_message_get_signature(sd_bus_message *m, int complete);
+const char *sd_bus_message_get_path(sd_bus_message *m);
+const char *sd_bus_message_get_interface(sd_bus_message *m);
+const char *sd_bus_message_get_member(sd_bus_message *m);
+const char *sd_bus_message_get_destination(sd_bus_message *m);
+const char *sd_bus_message_get_sender(sd_bus_message *m);
+const sd_bus_error *sd_bus_message_get_error(sd_bus_message *m);
+int sd_bus_message_get_errno(sd_bus_message *m);
+
+int sd_bus_message_get_monotonic_usec(sd_bus_message *m, uint64_t *usec);
+int sd_bus_message_get_realtime_usec(sd_bus_message *m, uint64_t *usec);
+int sd_bus_message_get_seqnum(sd_bus_message *m, uint64_t* seqnum);
+
+sd_bus* sd_bus_message_get_bus(sd_bus_message *m);
+sd_bus_creds *sd_bus_message_get_creds(sd_bus_message *m); /* do not unref the result */
+
+int sd_bus_message_is_signal(sd_bus_message *m, const char *interface, const char *member);
+int sd_bus_message_is_method_call(sd_bus_message *m, const char *interface, const char *member);
+int sd_bus_message_is_method_error(sd_bus_message *m, const char *name);
+int sd_bus_message_is_empty(sd_bus_message *m);
+int sd_bus_message_has_signature(sd_bus_message *m, const char *signature);
+
+int sd_bus_message_set_expect_reply(sd_bus_message *m, int b);
+int sd_bus_message_set_auto_start(sd_bus_message *m, int b);
+int sd_bus_message_set_allow_interactive_authorization(sd_bus_message *m, int b);
+
+int sd_bus_message_set_destination(sd_bus_message *m, const char *destination);
+int sd_bus_message_set_priority(sd_bus_message *m, int64_t priority);
+
+int sd_bus_message_append(sd_bus_message *m, const char *types, ...);
+int sd_bus_message_append_basic(sd_bus_message *m, char type, const void *p);
+int sd_bus_message_append_array(sd_bus_message *m, char type, const void *ptr, size_t size);
+int sd_bus_message_append_array_space(sd_bus_message *m, char type, size_t size, void **ptr);
+int sd_bus_message_append_array_iovec(sd_bus_message *m, char type, const struct iovec *iov, unsigned n);
+int sd_bus_message_append_array_memfd(sd_bus_message *m, char type, int memfd, uint64_t offset, uint64_t size);
+int sd_bus_message_append_string_space(sd_bus_message *m, size_t size, char **s);
+int sd_bus_message_append_string_iovec(sd_bus_message *m, const struct iovec *iov, unsigned n);
+int sd_bus_message_append_string_memfd(sd_bus_message *m, int memfd, uint64_t offset, uint64_t size);
+int sd_bus_message_append_strv(sd_bus_message *m, char **l);
+int sd_bus_message_open_container(sd_bus_message *m, char type, const char *contents);
+int sd_bus_message_close_container(sd_bus_message *m);
+int sd_bus_message_copy(sd_bus_message *m, sd_bus_message *source, int all);
+
+int sd_bus_message_read(sd_bus_message *m, const char *types, ...);
+int sd_bus_message_read_basic(sd_bus_message *m, char type, void *p);
+int sd_bus_message_read_array(sd_bus_message *m, char type, const void **ptr, size_t *size);
+int sd_bus_message_read_strv(sd_bus_message *m, char ***l); /* free the result! */
+int sd_bus_message_skip(sd_bus_message *m, const char *types);
+int sd_bus_message_enter_container(sd_bus_message *m, char type, const char *contents);
+int sd_bus_message_exit_container(sd_bus_message *m);
+int sd_bus_message_peek_type(sd_bus_message *m, char *type, const char **contents);
+int sd_bus_message_verify_type(sd_bus_message *m, char type, const char *contents);
+int sd_bus_message_at_end(sd_bus_message *m, int complete);
+int sd_bus_message_rewind(sd_bus_message *m, int complete);
+
+/* Bus management */
+
+int sd_bus_get_unique_name(sd_bus *bus, const char **unique);
+int sd_bus_request_name(sd_bus *bus, const char *name, uint64_t flags);
+int sd_bus_release_name(sd_bus *bus, const char *name);
+int sd_bus_list_names(sd_bus *bus, char ***acquired, char ***activatable); /* free the results */
+int sd_bus_get_name_creds(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **creds); /* unref the result! */
+int sd_bus_get_name_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine);
+
+/* Convenience calls */
+
+int sd_bus_call_method(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, sd_bus_message **reply, const char *types, ...);
+int sd_bus_call_method_async(sd_bus *bus, sd_bus_slot **slot, const char *destination, const char *path, const char *interface, const char *member, sd_bus_message_handler_t callback, void *userdata, const char *types, ...);
+int sd_bus_get_property(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, sd_bus_message **reply, const char *type);
+int sd_bus_get_property_trivial(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, char type, void *ret_ptr);
+int sd_bus_get_property_string(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, char **ret); /* free the result! */
+int sd_bus_get_property_strv(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, char ***ret); /* free the result! */
+int sd_bus_set_property(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, const char *type, ...);
+
+int sd_bus_reply_method_return(sd_bus_message *call, const char *types, ...);
+int sd_bus_reply_method_error(sd_bus_message *call, const sd_bus_error *e);
+int sd_bus_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...) _sd_printf_(3, 4);
+int sd_bus_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *e);
+int sd_bus_reply_method_errnof(sd_bus_message *call, int error, const char *format, ...) _sd_printf_(3, 4);
+
+int sd_bus_emit_signal(sd_bus *bus, const char *path, const char *interface, const char *member, const char *types, ...);
+
+int sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names);
+int sd_bus_emit_properties_changed(sd_bus *bus, const char *path, const char *interface, const char *name, ...) _sd_sentinel_;
+
+int sd_bus_emit_object_added(sd_bus *bus, const char *path);
+int sd_bus_emit_object_removed(sd_bus *bus, const char *path);
+int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces);
+int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
+int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces);
+int sd_bus_emit_interfaces_removed(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
+
+int sd_bus_query_sender_creds(sd_bus_message *call, uint64_t mask, sd_bus_creds **creds);
+int sd_bus_query_sender_privilege(sd_bus_message *call, int capability);
+
+/* Credential handling */
+
+int sd_bus_creds_new_from_pid(sd_bus_creds **ret, pid_t pid, uint64_t creds_mask);
+sd_bus_creds *sd_bus_creds_ref(sd_bus_creds *c);
+sd_bus_creds *sd_bus_creds_unref(sd_bus_creds *c);
+uint64_t sd_bus_creds_get_mask(const sd_bus_creds *c);
+uint64_t sd_bus_creds_get_augmented_mask(const sd_bus_creds *c);
+
+int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid);
+int sd_bus_creds_get_ppid(sd_bus_creds *c, pid_t *ppid);
+int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid);
+int sd_bus_creds_get_uid(sd_bus_creds *c, uid_t *uid);
+int sd_bus_creds_get_euid(sd_bus_creds *c, uid_t *euid);
+int sd_bus_creds_get_suid(sd_bus_creds *c, uid_t *suid);
+int sd_bus_creds_get_fsuid(sd_bus_creds *c, uid_t *fsuid);
+int sd_bus_creds_get_gid(sd_bus_creds *c, gid_t *gid);
+int sd_bus_creds_get_egid(sd_bus_creds *c, gid_t *egid);
+int sd_bus_creds_get_sgid(sd_bus_creds *c, gid_t *sgid);
+int sd_bus_creds_get_fsgid(sd_bus_creds *c, gid_t *fsgid);
+int sd_bus_creds_get_supplementary_gids(sd_bus_creds *c, const gid_t **gids);
+int sd_bus_creds_get_comm(sd_bus_creds *c, const char **comm);
+int sd_bus_creds_get_tid_comm(sd_bus_creds *c, const char **comm);
+int sd_bus_creds_get_exe(sd_bus_creds *c, const char **exe);
+int sd_bus_creds_get_cmdline(sd_bus_creds *c, char ***cmdline);
+int sd_bus_creds_get_cgroup(sd_bus_creds *c, const char **cgroup);
+int sd_bus_creds_get_unit(sd_bus_creds *c, const char **unit);
+int sd_bus_creds_get_slice(sd_bus_creds *c, const char **slice);
+int sd_bus_creds_get_user_unit(sd_bus_creds *c, const char **unit);
+int sd_bus_creds_get_user_slice(sd_bus_creds *c, const char **slice);
+int sd_bus_creds_get_session(sd_bus_creds *c, const char **session);
+int sd_bus_creds_get_owner_uid(sd_bus_creds *c, uid_t *uid);
+int sd_bus_creds_has_effective_cap(sd_bus_creds *c, int capability);
+int sd_bus_creds_has_permitted_cap(sd_bus_creds *c, int capability);
+int sd_bus_creds_has_inheritable_cap(sd_bus_creds *c, int capability);
+int sd_bus_creds_has_bounding_cap(sd_bus_creds *c, int capability);
+int sd_bus_creds_get_selinux_context(sd_bus_creds *c, const char **context);
+int sd_bus_creds_get_audit_session_id(sd_bus_creds *c, uint32_t *sessionid);
+int sd_bus_creds_get_audit_login_uid(sd_bus_creds *c, uid_t *loginuid);
+int sd_bus_creds_get_tty(sd_bus_creds *c, const char **tty);
+int sd_bus_creds_get_unique_name(sd_bus_creds *c, const char **name);
+int sd_bus_creds_get_well_known_names(sd_bus_creds *c, char ***names);
+int sd_bus_creds_get_description(sd_bus_creds *c, const char **name);
+
+/* Error structures */
+
+#define SD_BUS_ERROR_MAKE_CONST(name, message) ((const sd_bus_error) {(name), (message), 0})
+#define SD_BUS_ERROR_NULL SD_BUS_ERROR_MAKE_CONST(NULL, NULL)
+
+void sd_bus_error_free(sd_bus_error *e);
+int sd_bus_error_set(sd_bus_error *e, const char *name, const char *message);
+int sd_bus_error_setf(sd_bus_error *e, const char *name, const char *format, ...) _sd_printf_(3, 4);
+int sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message);
+int sd_bus_error_set_errno(sd_bus_error *e, int error);
+int sd_bus_error_set_errnof(sd_bus_error *e, int error, const char *format, ...) _sd_printf_(3, 4);
+int sd_bus_error_set_errnofv(sd_bus_error *e, int error, const char *format, va_list ap) _sd_printf_(3,0);
+int sd_bus_error_get_errno(const sd_bus_error *e);
+int sd_bus_error_copy(sd_bus_error *dest, const sd_bus_error *e);
+int sd_bus_error_is_set(const sd_bus_error *e);
+int sd_bus_error_has_name(const sd_bus_error *e, const char *name);
+
+#define SD_BUS_ERROR_MAP(_name, _code) \
+ { \
+ .name = _name, \
+ .code = _code, \
+ }
+#define SD_BUS_ERROR_MAP_END \
+ { \
+ .name = NULL, \
+ .code = - 'x', \
+ }
+
+int sd_bus_error_add_map(const sd_bus_error_map *map);
+
+/* Auxiliary macros */
+
+#define SD_BUS_MESSAGE_APPEND_ID128(x) 16, \
+ (x).bytes[0], (x).bytes[1], (x).bytes[2], (x).bytes[3], \
+ (x).bytes[4], (x).bytes[5], (x).bytes[6], (x).bytes[7], \
+ (x).bytes[8], (x).bytes[9], (x).bytes[10], (x).bytes[11], \
+ (x).bytes[12], (x).bytes[13], (x).bytes[14], (x).bytes[15]
+
+#define SD_BUS_MESSAGE_READ_ID128(x) 16, \
+ &(x).bytes[0], &(x).bytes[1], &(x).bytes[2], &(x).bytes[3], \
+ &(x).bytes[4], &(x).bytes[5], &(x).bytes[6], &(x).bytes[7], \
+ &(x).bytes[8], &(x).bytes[9], &(x).bytes[10], &(x).bytes[11], \
+ &(x).bytes[12], &(x).bytes[13], &(x).bytes[14], &(x).bytes[15]
+
+/* Label escaping */
+
+int sd_bus_path_encode(const char *prefix, const char *external_id, char **ret_path);
+int sd_bus_path_encode_many(char **out, const char *path_template, ...);
+int sd_bus_path_decode(const char *path, const char *prefix, char **ret_external_id);
+int sd_bus_path_decode_many(const char *path, const char *path_template, ...);
+
+/* Tracking peers */
+
+int sd_bus_track_new(sd_bus *bus, sd_bus_track **track, sd_bus_track_handler_t handler, void *userdata);
+sd_bus_track* sd_bus_track_ref(sd_bus_track *track);
+sd_bus_track* sd_bus_track_unref(sd_bus_track *track);
+
+sd_bus* sd_bus_track_get_bus(sd_bus_track *track);
+void *sd_bus_track_get_userdata(sd_bus_track *track);
+void *sd_bus_track_set_userdata(sd_bus_track *track, void *userdata);
+
+int sd_bus_track_add_sender(sd_bus_track *track, sd_bus_message *m);
+int sd_bus_track_remove_sender(sd_bus_track *track, sd_bus_message *m);
+int sd_bus_track_add_name(sd_bus_track *track, const char *name);
+int sd_bus_track_remove_name(sd_bus_track *track, const char *name);
+
+unsigned sd_bus_track_count(sd_bus_track *track);
+const char* sd_bus_track_contains(sd_bus_track *track, const char *names);
+const char* sd_bus_track_first(sd_bus_track *track);
+const char* sd_bus_track_next(sd_bus_track *track);
+
+/* Define helpers so that __attribute__((cleanup(sd_bus_unrefp))) and similar may be used. */
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus, sd_bus_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus, sd_bus_flush_close_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_slot, sd_bus_slot_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_message, sd_bus_message_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_creds, sd_bus_creds_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_track, sd_bus_track_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-daemon.h b/src/libsystemd/include/systemd/sd-daemon.h
new file mode 100644
index 0000000000..e6787b0a64
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-daemon.h
@@ -0,0 +1,289 @@
+#ifndef foosddaemonhfoo
+#define foosddaemonhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include "_sd-common.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+/*
+ The following functionality is provided:
+
+ - Support for logging with log levels on stderr
+ - File descriptor passing for socket-based activation
+ - Daemon startup and status notification
+ - Detection of systemd boots
+
+ See sd-daemon(3) for more information.
+*/
+
+/*
+ Log levels for usage on stderr:
+
+ fprintf(stderr, SD_NOTICE "Hello World!\n");
+
+ This is similar to printk() usage in the kernel.
+*/
+#define SD_EMERG "<0>" /* system is unusable */
+#define SD_ALERT "<1>" /* action must be taken immediately */
+#define SD_CRIT "<2>" /* critical conditions */
+#define SD_ERR "<3>" /* error conditions */
+#define SD_WARNING "<4>" /* warning conditions */
+#define SD_NOTICE "<5>" /* normal but significant condition */
+#define SD_INFO "<6>" /* informational */
+#define SD_DEBUG "<7>" /* debug-level messages */
+
+/* The first passed file descriptor is fd 3 */
+#define SD_LISTEN_FDS_START 3
+
+/*
+ Returns how many file descriptors have been passed, or a negative
+ errno code on failure. Optionally, removes the $LISTEN_FDS and
+ $LISTEN_PID file descriptors from the environment (recommended, but
+ problematic in threaded environments). If r is the return value of
+ this function you'll find the file descriptors passed as fds
+ SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative
+ errno style error code on failure. This function call ensures that
+ the FD_CLOEXEC flag is set for the passed file descriptors, to make
+ sure they are not passed on to child processes. If FD_CLOEXEC shall
+ not be set, the caller needs to unset it after this call for all file
+ descriptors that are used.
+
+ See sd_listen_fds(3) for more information.
+*/
+int sd_listen_fds(int unset_environment);
+
+int sd_listen_fds_with_names(int unset_environment, char ***names);
+
+/*
+ Helper call for identifying a passed file descriptor. Returns 1 if
+ the file descriptor is a FIFO in the file system stored under the
+ specified path, 0 otherwise. If path is NULL a path name check will
+ not be done and the call only verifies if the file descriptor
+ refers to a FIFO. Returns a negative errno style error code on
+ failure.
+
+ See sd_is_fifo(3) for more information.
+*/
+int sd_is_fifo(int fd, const char *path);
+
+/*
+ Helper call for identifying a passed file descriptor. Returns 1 if
+ the file descriptor is a special character device on the file
+ system stored under the specified path, 0 otherwise.
+ If path is NULL a path name check will not be done and the call
+ only verifies if the file descriptor refers to a special character.
+ Returns a negative errno style error code on failure.
+
+ See sd_is_special(3) for more information.
+*/
+int sd_is_special(int fd, const char *path);
+
+/*
+ Helper call for identifying a passed file descriptor. Returns 1 if
+ the file descriptor is a socket of the specified family (AF_INET,
+ ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If
+ family is 0 a socket family check will not be done. If type is 0 a
+ socket type check will not be done and the call only verifies if
+ the file descriptor refers to a socket. If listening is > 0 it is
+ verified that the socket is in listening mode. (i.e. listen() has
+ been called) If listening is == 0 it is verified that the socket is
+ not in listening mode. If listening is < 0 no listening mode check
+ is done. Returns a negative errno style error code on failure.
+
+ See sd_is_socket(3) for more information.
+*/
+int sd_is_socket(int fd, int family, int type, int listening);
+
+/*
+ Helper call for identifying a passed file descriptor. Returns 1 if
+ the file descriptor is an Internet socket, of the specified family
+ (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM,
+ SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version
+ check is not done. If type is 0 a socket type check will not be
+ done. If port is 0 a socket port check will not be done. The
+ listening flag is used the same way as in sd_is_socket(). Returns a
+ negative errno style error code on failure.
+
+ See sd_is_socket_inet(3) for more information.
+*/
+int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port);
+
+/*
+ Helper call for identifying a passed file descriptor. Returns 1 if
+ the file descriptor is an AF_UNIX socket of the specified type
+ (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0
+ a socket type check will not be done. If path is NULL a socket path
+ check will not be done. For normal AF_UNIX sockets set length to
+ 0. For abstract namespace sockets set length to the length of the
+ socket name (including the initial 0 byte), and pass the full
+ socket path in path (including the initial 0 byte). The listening
+ flag is used the same way as in sd_is_socket(). Returns a negative
+ errno style error code on failure.
+
+ See sd_is_socket_unix(3) for more information.
+*/
+int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);
+
+/*
+ Helper call for identifying a passed file descriptor. Returns 1 if
+ the file descriptor is a POSIX Message Queue of the specified name,
+ 0 otherwise. If path is NULL a message queue name check is not
+ done. Returns a negative errno style error code on failure.
+
+ See sd_is_mq(3) for more information.
+*/
+int sd_is_mq(int fd, const char *path);
+
+/*
+ Informs systemd about changed daemon state. This takes a number of
+ newline separated environment-style variable assignments in a
+ string. The following variables are known:
+
+ READY=1 Tells systemd that daemon startup is finished (only
+ relevant for services of Type=notify). The passed
+ argument is a boolean "1" or "0". Since there is
+ little value in signaling non-readiness the only
+ value daemons should send is "READY=1".
+
+ STATUS=... Passes a single-line status string back to systemd
+ that describes the daemon state. This is free-form
+ and can be used for various purposes: general state
+ feedback, fsck-like programs could pass completion
+ percentages and failing programs could pass a human
+ readable error message. Example: "STATUS=Completed
+ 66% of file system check..."
+
+ ERRNO=... If a daemon fails, the errno-style error code,
+ formatted as string. Example: "ERRNO=2" for ENOENT.
+
+ BUSERROR=... If a daemon fails, the D-Bus error-style error
+ code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut"
+
+ MAINPID=... The main pid of a daemon, in case systemd did not
+ fork off the process itself. Example: "MAINPID=4711"
+
+ WATCHDOG=1 Tells systemd to update the watchdog timestamp.
+ Services using this feature should do this in
+ regular intervals. A watchdog framework can use the
+ timestamps to detect failed services. Also see
+ sd_watchdog_enabled() below.
+
+ FDSTORE=1 Store the file descriptors passed along with the
+ message in the per-service file descriptor store,
+ and pass them to the main process again on next
+ invocation. This variable is only supported with
+ sd_pid_notify_with_fds().
+
+ Daemons can choose to send additional variables. However, it is
+ recommended to prefix variable names not listed above with X_.
+
+ Returns a negative errno-style error code on failure. Returns > 0
+ if systemd could be notified, 0 if it couldn't possibly because
+ systemd is not running.
+
+ Example: When a daemon finished starting up, it could issue this
+ call to notify systemd about it:
+
+ sd_notify(0, "READY=1");
+
+ See sd_notifyf() for more complete examples.
+
+ See sd_notify(3) for more information.
+*/
+int sd_notify(int unset_environment, const char *state);
+
+/*
+ Similar to sd_notify() but takes a format string.
+
+ Example 1: A daemon could send the following after initialization:
+
+ sd_notifyf(0, "READY=1\n"
+ "STATUS=Processing requests...\n"
+ "MAINPID=%lu",
+ (unsigned long) getpid());
+
+ Example 2: A daemon could send the following shortly before
+ exiting, on failure:
+
+ sd_notifyf(0, "STATUS=Failed to start up: %s\n"
+ "ERRNO=%i",
+ strerror(errno),
+ errno);
+
+ See sd_notifyf(3) for more information.
+*/
+int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_(2,3);
+
+/*
+ Similar to sd_notify(), but send the message on behalf of another
+ process, if the appropriate permissions are available.
+*/
+int sd_pid_notify(pid_t pid, int unset_environment, const char *state);
+
+/*
+ Similar to sd_notifyf(), but send the message on behalf of another
+ process, if the appropriate permissions are available.
+*/
+int sd_pid_notifyf(pid_t pid, int unset_environment, const char *format, ...) _sd_printf_(3,4);
+
+/*
+ Similar to sd_pid_notify(), but also passes the specified fd array
+ to the service manager for storage. This is particularly useful for
+ FDSTORE=1 messages.
+*/
+int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char *state, const int *fds, unsigned n_fds);
+
+/*
+ Returns > 0 if the system was booted with systemd. Returns < 0 on
+ error. Returns 0 if the system was not booted with systemd. Note
+ that all of the functions above handle non-systemd boots just
+ fine. You should NOT protect them with a call to this function. Also
+ note that this function checks whether the system, not the user
+ session is controlled by systemd. However the functions above work
+ for both user and system services.
+
+ See sd_booted(3) for more information.
+*/
+int sd_booted(void);
+
+/*
+ Returns > 0 if the service manager expects watchdog keep-alive
+ events to be sent regularly via sd_notify(0, "WATCHDOG=1"). Returns
+ 0 if it does not expect this. If the usec argument is non-NULL
+ returns the watchdog timeout in µs after which the service manager
+ will act on a process that has not sent a watchdog keep alive
+ message. This function is useful to implement services that
+ recognize automatically if they are being run under supervision of
+ systemd with WatchdogSec= set. It is recommended for clients to
+ generate keep-alive pings via sd_notify(0, "WATCHDOG=1") every half
+ of the returned time.
+
+ See sd_watchdog_enabled(3) for more information.
+*/
+int sd_watchdog_enabled(int unset_environment, uint64_t *usec);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-event.h b/src/libsystemd/include/systemd/sd-event.h
new file mode 100644
index 0000000000..531ace1c34
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-event.h
@@ -0,0 +1,142 @@
+#ifndef foosdeventhfoo
+#define foosdeventhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <signal.h>
+#include <sys/epoll.h>
+#include <sys/signalfd.h>
+#include <sys/types.h>
+
+#include "_sd-common.h"
+
+/*
+ Why is this better than pure epoll?
+
+ - Supports event source prioritization
+ - Scales better with a large number of time events because it does not require one timerfd each
+ - Automatically tries to coalesce timer events system-wide
+ - Handles signals and child PIDs
+*/
+
+_SD_BEGIN_DECLARATIONS;
+
+typedef struct sd_event sd_event;
+typedef struct sd_event_source sd_event_source;
+
+enum {
+ SD_EVENT_OFF = 0,
+ SD_EVENT_ON = 1,
+ SD_EVENT_ONESHOT = -1
+};
+
+enum {
+ SD_EVENT_INITIAL,
+ SD_EVENT_ARMED,
+ SD_EVENT_PENDING,
+ SD_EVENT_RUNNING,
+ SD_EVENT_EXITING,
+ SD_EVENT_FINISHED,
+ SD_EVENT_PREPARING
+};
+
+enum {
+ /* And everything in-between and outside is good too */
+ SD_EVENT_PRIORITY_IMPORTANT = -100,
+ SD_EVENT_PRIORITY_NORMAL = 0,
+ SD_EVENT_PRIORITY_IDLE = 100
+};
+
+typedef int (*sd_event_handler_t)(sd_event_source *s, void *userdata);
+typedef int (*sd_event_io_handler_t)(sd_event_source *s, int fd, uint32_t revents, void *userdata);
+typedef int (*sd_event_time_handler_t)(sd_event_source *s, uint64_t usec, void *userdata);
+typedef int (*sd_event_signal_handler_t)(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata);
+#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
+typedef int (*sd_event_child_handler_t)(sd_event_source *s, const siginfo_t *si, void *userdata);
+#else
+typedef void* sd_event_child_handler_t;
+#endif
+
+int sd_event_default(sd_event **e);
+
+int sd_event_new(sd_event **e);
+sd_event* sd_event_ref(sd_event *e);
+sd_event* sd_event_unref(sd_event *e);
+
+int sd_event_add_io(sd_event *e, sd_event_source **s, int fd, uint32_t events, sd_event_io_handler_t callback, void *userdata);
+int sd_event_add_time(sd_event *e, sd_event_source **s, clockid_t clock, uint64_t usec, uint64_t accuracy, sd_event_time_handler_t callback, void *userdata);
+int sd_event_add_signal(sd_event *e, sd_event_source **s, int sig, sd_event_signal_handler_t callback, void *userdata);
+int sd_event_add_child(sd_event *e, sd_event_source **s, pid_t pid, int options, sd_event_child_handler_t callback, void *userdata);
+int sd_event_add_defer(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata);
+int sd_event_add_post(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata);
+int sd_event_add_exit(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata);
+
+int sd_event_prepare(sd_event *e);
+int sd_event_wait(sd_event *e, uint64_t usec);
+int sd_event_dispatch(sd_event *e);
+int sd_event_run(sd_event *e, uint64_t usec);
+int sd_event_loop(sd_event *e);
+int sd_event_exit(sd_event *e, int code);
+
+int sd_event_now(sd_event *e, clockid_t clock, uint64_t *usec);
+
+int sd_event_get_fd(sd_event *e);
+int sd_event_get_state(sd_event *e);
+int sd_event_get_tid(sd_event *e, pid_t *tid);
+int sd_event_get_exit_code(sd_event *e, int *code);
+int sd_event_set_watchdog(sd_event *e, int b);
+int sd_event_get_watchdog(sd_event *e);
+
+sd_event_source* sd_event_source_ref(sd_event_source *s);
+sd_event_source* sd_event_source_unref(sd_event_source *s);
+
+sd_event *sd_event_source_get_event(sd_event_source *s);
+void* sd_event_source_get_userdata(sd_event_source *s);
+void* sd_event_source_set_userdata(sd_event_source *s, void *userdata);
+
+int sd_event_source_set_description(sd_event_source *s, const char *description);
+int sd_event_source_get_description(sd_event_source *s, const char **description);
+int sd_event_source_set_prepare(sd_event_source *s, sd_event_handler_t callback);
+int sd_event_source_get_pending(sd_event_source *s);
+int sd_event_source_get_priority(sd_event_source *s, int64_t *priority);
+int sd_event_source_set_priority(sd_event_source *s, int64_t priority);
+int sd_event_source_get_enabled(sd_event_source *s, int *enabled);
+int sd_event_source_set_enabled(sd_event_source *s, int enabled);
+int sd_event_source_get_io_fd(sd_event_source *s);
+int sd_event_source_set_io_fd(sd_event_source *s, int fd);
+int sd_event_source_get_io_events(sd_event_source *s, uint32_t* events);
+int sd_event_source_set_io_events(sd_event_source *s, uint32_t events);
+int sd_event_source_get_io_revents(sd_event_source *s, uint32_t* revents);
+int sd_event_source_get_time(sd_event_source *s, uint64_t *usec);
+int sd_event_source_set_time(sd_event_source *s, uint64_t usec);
+int sd_event_source_get_time_accuracy(sd_event_source *s, uint64_t *usec);
+int sd_event_source_set_time_accuracy(sd_event_source *s, uint64_t usec);
+int sd_event_source_get_time_clock(sd_event_source *s, clockid_t *clock);
+int sd_event_source_get_signal(sd_event_source *s);
+int sd_event_source_get_child_pid(sd_event_source *s, pid_t *pid);
+
+/* Define helpers so that __attribute__((cleanup(sd_event_unrefp))) and similar may be used. */
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_event, sd_event_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_event_source, sd_event_source_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-id128.h b/src/libsystemd/include/systemd/sd-id128.h
new file mode 100644
index 0000000000..4dff0b9b81
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-id128.h
@@ -0,0 +1,115 @@
+#ifndef foosdid128hfoo
+#define foosdid128hfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <string.h>
+
+#include "_sd-common.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+/* 128-bit ID APIs. See sd-id128(3) for more information. */
+
+typedef union sd_id128 sd_id128_t;
+
+union sd_id128 {
+ uint8_t bytes[16];
+ uint64_t qwords[2];
+};
+
+#define SD_ID128_STRING_MAX 33
+
+char *sd_id128_to_string(sd_id128_t id, char s[SD_ID128_STRING_MAX]);
+
+int sd_id128_from_string(const char *s, sd_id128_t *ret);
+
+int sd_id128_randomize(sd_id128_t *ret);
+
+int sd_id128_get_machine(sd_id128_t *ret);
+
+int sd_id128_get_boot(sd_id128_t *ret);
+
+#define SD_ID128_MAKE(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) \
+ ((const sd_id128_t) { .bytes = { 0x##v0, 0x##v1, 0x##v2, 0x##v3, 0x##v4, 0x##v5, 0x##v6, 0x##v7, \
+ 0x##v8, 0x##v9, 0x##v10, 0x##v11, 0x##v12, 0x##v13, 0x##v14, 0x##v15 }})
+
+#define SD_ID128_ARRAY(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) \
+ { .bytes = { 0x##v0, 0x##v1, 0x##v2, 0x##v3, 0x##v4, 0x##v5, 0x##v6, 0x##v7, \
+ 0x##v8, 0x##v9, 0x##v10, 0x##v11, 0x##v12, 0x##v13, 0x##v14, 0x##v15 }}
+
+/* Note that SD_ID128_FORMAT_VAL will evaluate the passed argument 16
+ * times. It is hence not a good idea to call this macro with an
+ * expensive function as parameter or an expression with side
+ * effects */
+
+#define SD_ID128_FORMAT_STR "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
+#define SD_ID128_FORMAT_VAL(x) (x).bytes[0], (x).bytes[1], (x).bytes[2], (x).bytes[3], (x).bytes[4], (x).bytes[5], (x).bytes[6], (x).bytes[7], (x).bytes[8], (x).bytes[9], (x).bytes[10], (x).bytes[11], (x).bytes[12], (x).bytes[13], (x).bytes[14], (x).bytes[15]
+
+#define SD_ID128_CONST_STR(x) \
+ ((const char[SD_ID128_STRING_MAX]) { \
+ ((x).bytes[0] >> 4) >= 10 ? 'a' + ((x).bytes[0] >> 4) - 10 : '0' + ((x).bytes[0] >> 4), \
+ ((x).bytes[0] & 15) >= 10 ? 'a' + ((x).bytes[0] & 15) - 10 : '0' + ((x).bytes[0] & 15), \
+ ((x).bytes[1] >> 4) >= 10 ? 'a' + ((x).bytes[1] >> 4) - 10 : '0' + ((x).bytes[1] >> 4), \
+ ((x).bytes[1] & 15) >= 10 ? 'a' + ((x).bytes[1] & 15) - 10 : '0' + ((x).bytes[1] & 15), \
+ ((x).bytes[2] >> 4) >= 10 ? 'a' + ((x).bytes[2] >> 4) - 10 : '0' + ((x).bytes[2] >> 4), \
+ ((x).bytes[2] & 15) >= 10 ? 'a' + ((x).bytes[2] & 15) - 10 : '0' + ((x).bytes[2] & 15), \
+ ((x).bytes[3] >> 4) >= 10 ? 'a' + ((x).bytes[3] >> 4) - 10 : '0' + ((x).bytes[3] >> 4), \
+ ((x).bytes[3] & 15) >= 10 ? 'a' + ((x).bytes[3] & 15) - 10 : '0' + ((x).bytes[3] & 15), \
+ ((x).bytes[4] >> 4) >= 10 ? 'a' + ((x).bytes[4] >> 4) - 10 : '0' + ((x).bytes[4] >> 4), \
+ ((x).bytes[4] & 15) >= 10 ? 'a' + ((x).bytes[4] & 15) - 10 : '0' + ((x).bytes[4] & 15), \
+ ((x).bytes[5] >> 4) >= 10 ? 'a' + ((x).bytes[5] >> 4) - 10 : '0' + ((x).bytes[5] >> 4), \
+ ((x).bytes[5] & 15) >= 10 ? 'a' + ((x).bytes[5] & 15) - 10 : '0' + ((x).bytes[5] & 15), \
+ ((x).bytes[6] >> 4) >= 10 ? 'a' + ((x).bytes[6] >> 4) - 10 : '0' + ((x).bytes[6] >> 4), \
+ ((x).bytes[6] & 15) >= 10 ? 'a' + ((x).bytes[6] & 15) - 10 : '0' + ((x).bytes[6] & 15), \
+ ((x).bytes[7] >> 4) >= 10 ? 'a' + ((x).bytes[7] >> 4) - 10 : '0' + ((x).bytes[7] >> 4), \
+ ((x).bytes[7] & 15) >= 10 ? 'a' + ((x).bytes[7] & 15) - 10 : '0' + ((x).bytes[7] & 15), \
+ ((x).bytes[8] >> 4) >= 10 ? 'a' + ((x).bytes[8] >> 4) - 10 : '0' + ((x).bytes[8] >> 4), \
+ ((x).bytes[8] & 15) >= 10 ? 'a' + ((x).bytes[8] & 15) - 10 : '0' + ((x).bytes[8] & 15), \
+ ((x).bytes[9] >> 4) >= 10 ? 'a' + ((x).bytes[9] >> 4) - 10 : '0' + ((x).bytes[9] >> 4), \
+ ((x).bytes[9] & 15) >= 10 ? 'a' + ((x).bytes[9] & 15) - 10 : '0' + ((x).bytes[9] & 15), \
+ ((x).bytes[10] >> 4) >= 10 ? 'a' + ((x).bytes[10] >> 4) - 10 : '0' + ((x).bytes[10] >> 4), \
+ ((x).bytes[10] & 15) >= 10 ? 'a' + ((x).bytes[10] & 15) - 10 : '0' + ((x).bytes[10] & 15), \
+ ((x).bytes[11] >> 4) >= 10 ? 'a' + ((x).bytes[11] >> 4) - 10 : '0' + ((x).bytes[11] >> 4), \
+ ((x).bytes[11] & 15) >= 10 ? 'a' + ((x).bytes[11] & 15) - 10 : '0' + ((x).bytes[11] & 15), \
+ ((x).bytes[12] >> 4) >= 10 ? 'a' + ((x).bytes[12] >> 4) - 10 : '0' + ((x).bytes[12] >> 4), \
+ ((x).bytes[12] & 15) >= 10 ? 'a' + ((x).bytes[12] & 15) - 10 : '0' + ((x).bytes[12] & 15), \
+ ((x).bytes[13] >> 4) >= 10 ? 'a' + ((x).bytes[13] >> 4) - 10 : '0' + ((x).bytes[13] >> 4), \
+ ((x).bytes[13] & 15) >= 10 ? 'a' + ((x).bytes[13] & 15) - 10 : '0' + ((x).bytes[13] & 15), \
+ ((x).bytes[14] >> 4) >= 10 ? 'a' + ((x).bytes[14] >> 4) - 10 : '0' + ((x).bytes[14] >> 4), \
+ ((x).bytes[14] & 15) >= 10 ? 'a' + ((x).bytes[14] & 15) - 10 : '0' + ((x).bytes[14] & 15), \
+ ((x).bytes[15] >> 4) >= 10 ? 'a' + ((x).bytes[15] >> 4) - 10 : '0' + ((x).bytes[15] >> 4), \
+ ((x).bytes[15] & 15) >= 10 ? 'a' + ((x).bytes[15] & 15) - 10 : '0' + ((x).bytes[15] & 15), \
+ 0 })
+
+_sd_pure_ static __inline__ int sd_id128_equal(sd_id128_t a, sd_id128_t b) {
+ return memcmp(&a, &b, 16) == 0;
+}
+
+_sd_pure_ static __inline__ int sd_id128_is_null(sd_id128_t a) {
+ return a.qwords[0] == 0 && a.qwords[1] == 0;
+}
+
+#define SD_ID128_NULL ((const sd_id128_t) { .qwords = { 0, 0 }})
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-journal.h b/src/libsystemd/include/systemd/sd-journal.h
new file mode 100644
index 0000000000..b684cf073c
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-journal.h
@@ -0,0 +1,174 @@
+#ifndef foosdjournalhfoo
+#define foosdjournalhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <syslog.h>
+
+#include "_sd-common.h"
+#include "sd-id128.h"
+
+/* Journal APIs. See sd-journal(3) for more information. */
+
+_SD_BEGIN_DECLARATIONS;
+
+/* Write to daemon */
+int sd_journal_print(int priority, const char *format, ...) _sd_printf_(2, 3);
+int sd_journal_printv(int priority, const char *format, va_list ap) _sd_printf_(2, 0);
+int sd_journal_send(const char *format, ...) _sd_printf_(1, 0) _sd_sentinel_;
+int sd_journal_sendv(const struct iovec *iov, int n);
+int sd_journal_perror(const char *message);
+
+/* Used by the macros below. You probably don't want to call this directly. */
+int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) _sd_printf_(5, 6);
+int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) _sd_printf_(5, 0);
+int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) _sd_printf_(4, 0) _sd_sentinel_;
+int sd_journal_sendv_with_location(const char *file, const char *line, const char *func, const struct iovec *iov, int n);
+int sd_journal_perror_with_location(const char *file, const char *line, const char *func, const char *message);
+
+/* implicitly add code location to messages sent, if this is enabled */
+#ifndef SD_JOURNAL_SUPPRESS_LOCATION
+
+#define sd_journal_print(priority, ...) sd_journal_print_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, __VA_ARGS__)
+#define sd_journal_printv(priority, format, ap) sd_journal_printv_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, format, ap)
+#define sd_journal_send(...) sd_journal_send_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, __VA_ARGS__)
+#define sd_journal_sendv(iovec, n) sd_journal_sendv_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, iovec, n)
+#define sd_journal_perror(message) sd_journal_perror_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _SD_STRINGIFY(__LINE__), __func__, message)
+
+#endif
+
+int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix);
+
+/* Browse journal stream */
+
+typedef struct sd_journal sd_journal;
+
+/* Open flags */
+enum {
+ SD_JOURNAL_LOCAL_ONLY = 1 << 0,
+ SD_JOURNAL_RUNTIME_ONLY = 1 << 1,
+ SD_JOURNAL_SYSTEM = 1 << 2,
+ SD_JOURNAL_CURRENT_USER = 1 << 3,
+ SD_JOURNAL_OS_ROOT = 1 << 4,
+
+ SD_JOURNAL_SYSTEM_ONLY = SD_JOURNAL_SYSTEM /* deprecated name */
+};
+
+/* Wakeup event types */
+enum {
+ SD_JOURNAL_NOP,
+ SD_JOURNAL_APPEND,
+ SD_JOURNAL_INVALIDATE
+};
+
+int sd_journal_open(sd_journal **ret, int flags);
+int sd_journal_open_directory(sd_journal **ret, const char *path, int flags);
+int sd_journal_open_directory_fd(sd_journal **ret, int fd, int flags);
+int sd_journal_open_files(sd_journal **ret, const char **paths, int flags);
+int sd_journal_open_files_fd(sd_journal **ret, int fds[], unsigned n_fds, int flags);
+int sd_journal_open_container(sd_journal **ret, const char *machine, int flags); /* deprecated */
+void sd_journal_close(sd_journal *j);
+
+int sd_journal_previous(sd_journal *j);
+int sd_journal_next(sd_journal *j);
+
+int sd_journal_previous_skip(sd_journal *j, uint64_t skip);
+int sd_journal_next_skip(sd_journal *j, uint64_t skip);
+
+int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret);
+int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id);
+
+int sd_journal_set_data_threshold(sd_journal *j, size_t sz);
+int sd_journal_get_data_threshold(sd_journal *j, size_t *sz);
+
+int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *l);
+int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *l);
+void sd_journal_restart_data(sd_journal *j);
+
+int sd_journal_add_match(sd_journal *j, const void *data, size_t size);
+int sd_journal_add_disjunction(sd_journal *j);
+int sd_journal_add_conjunction(sd_journal *j);
+void sd_journal_flush_matches(sd_journal *j);
+
+int sd_journal_seek_head(sd_journal *j);
+int sd_journal_seek_tail(sd_journal *j);
+int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec);
+int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec);
+int sd_journal_seek_cursor(sd_journal *j, const char *cursor);
+
+int sd_journal_get_cursor(sd_journal *j, char **cursor);
+int sd_journal_test_cursor(sd_journal *j, const char *cursor);
+
+int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to);
+int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, const sd_id128_t boot_id, uint64_t *from, uint64_t *to);
+
+int sd_journal_get_usage(sd_journal *j, uint64_t *bytes);
+
+int sd_journal_query_unique(sd_journal *j, const char *field);
+int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l);
+void sd_journal_restart_unique(sd_journal *j);
+
+int sd_journal_enumerate_fields(sd_journal *j, const char **field);
+void sd_journal_restart_fields(sd_journal *j);
+
+int sd_journal_get_fd(sd_journal *j);
+int sd_journal_get_events(sd_journal *j);
+int sd_journal_get_timeout(sd_journal *j, uint64_t *timeout_usec);
+int sd_journal_process(sd_journal *j);
+int sd_journal_wait(sd_journal *j, uint64_t timeout_usec);
+int sd_journal_reliable_fd(sd_journal *j);
+
+int sd_journal_get_catalog(sd_journal *j, char **text);
+int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **text);
+
+int sd_journal_has_runtime_files(sd_journal *j);
+int sd_journal_has_persistent_files(sd_journal *j);
+
+/* The inverse condition avoids ambiguity of dangling 'else' after the macro */
+#define SD_JOURNAL_FOREACH(j) \
+ if (sd_journal_seek_head(j) < 0) { } \
+ else while (sd_journal_next(j) > 0)
+
+/* The inverse condition avoids ambiguity of dangling 'else' after the macro */
+#define SD_JOURNAL_FOREACH_BACKWARDS(j) \
+ if (sd_journal_seek_tail(j) < 0) { } \
+ else while (sd_journal_previous(j) > 0)
+
+/* Iterate through the data fields of the current journal entry */
+#define SD_JOURNAL_FOREACH_DATA(j, data, l) \
+ for (sd_journal_restart_data(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
+
+/* Iterate through the all known values of a specific field */
+#define SD_JOURNAL_FOREACH_UNIQUE(j, data, l) \
+ for (sd_journal_restart_unique(j); sd_journal_enumerate_unique((j), &(data), &(l)) > 0; )
+
+/* Iterate through all known field names */
+#define SD_JOURNAL_FOREACH_FIELD(j, field) \
+ for (sd_journal_restart_fields(j); sd_journal_enumerate_fields((j), &(field)) > 0; )
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_journal, sd_journal_close);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-login.h b/src/libsystemd/include/systemd/sd-login.h
new file mode 100644
index 0000000000..e3ecbd8378
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-login.h
@@ -0,0 +1,245 @@
+#ifndef foosdloginhfoo
+#define foosdloginhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include "_sd-common.h"
+
+/*
+ * A few points:
+ *
+ * Instead of returning an empty string array or empty uid array, we
+ * may return NULL.
+ *
+ * Free the data the library returns with libc free(). String arrays
+ * are NULL terminated, and you need to free the array itself, in
+ * addition to the strings contained.
+ *
+ * We return error codes as negative errno, kernel-style. On success, we
+ * return 0 or positive.
+ *
+ * These functions access data in /proc, /sys/fs/cgroup, and /run. All
+ * of these are virtual file systems; therefore, accesses are
+ * relatively cheap.
+ *
+ * See sd-login(3) for more information.
+ */
+
+_SD_BEGIN_DECLARATIONS;
+
+/* Get session from PID. Note that 'shared' processes of a user are
+ * not attached to a session, but only attached to a user. This will
+ * return an error for system processes and 'shared' processes of a
+ * user. */
+int sd_pid_get_session(pid_t pid, char **session);
+
+/* Get UID of the owner of the session of the PID (or in case the
+ * process is a 'shared' user process, the UID of that user is
+ * returned). This will not return the UID of the process, but rather
+ * the UID of the owner of the cgroup that the process is in. This will
+ * return an error for system processes. */
+int sd_pid_get_owner_uid(pid_t pid, uid_t *uid);
+
+/* Get systemd non-slice unit (i.e. service) name from PID, for system
+ * services. This will return an error for non-service processes. */
+int sd_pid_get_unit(pid_t pid, char **unit);
+
+/* Get systemd non-slice unit (i.e. service) name from PID, for user
+ * services. This will return an error for non-user-service
+ * processes. */
+int sd_pid_get_user_unit(pid_t pid, char **unit);
+
+/* Get slice name from PID. */
+int sd_pid_get_slice(pid_t pid, char **slice);
+
+/* Get user slice name from PID. */
+int sd_pid_get_user_slice(pid_t pid, char **slice);
+
+/* Get machine name from PID, for processes assigned to a VM or
+ * container. This will return an error for non-machine processes. */
+int sd_pid_get_machine_name(pid_t pid, char **machine);
+
+/* Get the control group from a PID, relative to the root of the
+ * hierarchy. */
+int sd_pid_get_cgroup(pid_t pid, char **cgroup);
+
+/* Similar to sd_pid_get_session(), but retrieves data about the peer
+ * of a connected AF_UNIX socket */
+int sd_peer_get_session(int fd, char **session);
+
+/* Similar to sd_pid_get_owner_uid(), but retrieves data about the peer of
+ * a connected AF_UNIX socket */
+int sd_peer_get_owner_uid(int fd, uid_t *uid);
+
+/* Similar to sd_pid_get_unit(), but retrieves data about the peer of
+ * a connected AF_UNIX socket */
+int sd_peer_get_unit(int fd, char **unit);
+
+/* Similar to sd_pid_get_user_unit(), but retrieves data about the peer of
+ * a connected AF_UNIX socket */
+int sd_peer_get_user_unit(int fd, char **unit);
+
+/* Similar to sd_pid_get_slice(), but retrieves data about the peer of
+ * a connected AF_UNIX socket */
+int sd_peer_get_slice(int fd, char **slice);
+
+/* Similar to sd_pid_get_user_slice(), but retrieves data about the peer of
+ * a connected AF_UNIX socket */
+int sd_peer_get_user_slice(int fd, char **slice);
+
+/* Similar to sd_pid_get_machine_name(), but retrieves data about the
+ * peer of a connected AF_UNIX socket */
+int sd_peer_get_machine_name(int fd, char **machine);
+
+/* Similar to sd_pid_get_cgroup(), but retrieves data about the peer
+ * of a connected AF_UNIX socket. */
+int sd_peer_get_cgroup(pid_t pid, char **cgroup);
+
+/* Get state from UID. Possible states: offline, lingering, online, active, closing */
+int sd_uid_get_state(uid_t uid, char **state);
+
+/* Return primary session of user, if there is any */
+int sd_uid_get_display(uid_t uid, char **session);
+
+/* Return 1 if UID has session on seat. If require_active is true, this will
+ * look for active sessions only. */
+int sd_uid_is_on_seat(uid_t uid, int require_active, const char *seat);
+
+/* Return sessions of user. If require_active is true, this will look for
+ * active sessions only. Returns the number of sessions.
+ * If sessions is NULL, this will just return the number of sessions. */
+int sd_uid_get_sessions(uid_t uid, int require_active, char ***sessions);
+
+/* Return seats of user is on. If require_active is true, this will look for
+ * active seats only. Returns the number of seats.
+ * If seats is NULL, this will just return the number of seats. */
+int sd_uid_get_seats(uid_t uid, int require_active, char ***seats);
+
+/* Return 1 if the session is active. */
+int sd_session_is_active(const char *session);
+
+/* Return 1 if the session is remote. */
+int sd_session_is_remote(const char *session);
+
+/* Get state from session. Possible states: online, active, closing.
+ * This function is a more generic version of sd_session_is_active(). */
+int sd_session_get_state(const char *session, char **state);
+
+/* Determine user ID of session */
+int sd_session_get_uid(const char *session, uid_t *uid);
+
+/* Determine seat of session */
+int sd_session_get_seat(const char *session, char **seat);
+
+/* Determine the (PAM) service name this session was registered by. */
+int sd_session_get_service(const char *session, char **service);
+
+/* Determine the type of this session, i.e. one of "tty", "x11", "wayland", "mir" or "unspecified". */
+int sd_session_get_type(const char *session, char **type);
+
+/* Determine the class of this session, i.e. one of "user", "greeter" or "lock-screen". */
+int sd_session_get_class(const char *session, char **clazz);
+
+/* Determine the desktop brand of this session, i.e. something like "GNOME", "KDE" or "systemd-console". */
+int sd_session_get_desktop(const char *session, char **desktop);
+
+/* Determine the X11 display of this session. */
+int sd_session_get_display(const char *session, char **display);
+
+/* Determine the remote host of this session. */
+int sd_session_get_remote_host(const char *session, char **remote_host);
+
+/* Determine the remote user of this session (if provided by PAM). */
+int sd_session_get_remote_user(const char *session, char **remote_user);
+
+/* Determine the TTY of this session. */
+int sd_session_get_tty(const char *session, char **display);
+
+/* Determine the VT number of this session. */
+int sd_session_get_vt(const char *session, unsigned *vtnr);
+
+/* Return active session and user of seat */
+int sd_seat_get_active(const char *seat, char **session, uid_t *uid);
+
+/* Return sessions and users on seat. Returns number of sessions.
+ * If sessions is NULL, this returns only the number of sessions. */
+int sd_seat_get_sessions(const char *seat, char ***sessions, uid_t **uid, unsigned *n_uids);
+
+/* Return whether the seat is multi-session capable */
+int sd_seat_can_multi_session(const char *seat);
+
+/* Return whether the seat is TTY capable, i.e. suitable for showing console UIs */
+int sd_seat_can_tty(const char *seat);
+
+/* Return whether the seat is graphics capable, i.e. suitable for showing graphical UIs */
+int sd_seat_can_graphical(const char *seat);
+
+/* Return the class of machine */
+int sd_machine_get_class(const char *machine, char **clazz);
+
+/* Return the list if host-side network interface indices of a machine */
+int sd_machine_get_ifindices(const char *machine, int **ifindices);
+
+/* Get all seats, store in *seats. Returns the number of seats. If
+ * seats is NULL, this only returns the number of seats. */
+int sd_get_seats(char ***seats);
+
+/* Get all sessions, store in *sessions. Returns the number of
+ * sessions. If sessions is NULL, this only returns the number of sessions. */
+int sd_get_sessions(char ***sessions);
+
+/* Get all logged in users, store in *users. Returns the number of
+ * users. If users is NULL, this only returns the number of users. */
+int sd_get_uids(uid_t **users);
+
+/* Get all running virtual machines/containers */
+int sd_get_machine_names(char ***machines);
+
+/* Monitor object */
+typedef struct sd_login_monitor sd_login_monitor;
+
+/* Create a new monitor. Category must be NULL, "seat", "session",
+ * "uid", or "machine" to get monitor events for the specific category
+ * (or all). */
+int sd_login_monitor_new(const char *category, sd_login_monitor** ret);
+
+/* Destroys the passed monitor. Returns NULL. */
+sd_login_monitor* sd_login_monitor_unref(sd_login_monitor *m);
+
+/* Flushes the monitor */
+int sd_login_monitor_flush(sd_login_monitor *m);
+
+/* Get FD from monitor */
+int sd_login_monitor_get_fd(sd_login_monitor *m);
+
+/* Get poll() mask to monitor */
+int sd_login_monitor_get_events(sd_login_monitor *m);
+
+/* Get timeout for poll(), as usec value relative to CLOCK_MONOTONIC's epoch */
+int sd_login_monitor_get_timeout(sd_login_monitor *m, uint64_t *timeout_usec);
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_login_monitor, sd_login_monitor_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-messages.h b/src/libsystemd/include/systemd/sd-messages.h
new file mode 100644
index 0000000000..c8599c596d
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-messages.h
@@ -0,0 +1,90 @@
+#ifndef foosdmessageshfoo
+#define foosdmessageshfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "_sd-common.h"
+#include "sd-id128.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+/* Hey! If you add a new message here, you *must* also update the
+ * message catalog with an appropriate explanation */
+
+/* And if you add a new ID here, make sure to generate a random one
+ * with journalctl --new-id128. Do not use any other IDs, and do not
+ * count them up manually. */
+
+#define SD_MESSAGE_JOURNAL_START SD_ID128_MAKE(f7,73,79,a8,49,0b,40,8b,be,5f,69,40,50,5a,77,7b)
+#define SD_MESSAGE_JOURNAL_STOP SD_ID128_MAKE(d9,3f,b3,c9,c2,4d,45,1a,97,ce,a6,15,ce,59,c0,0b)
+#define SD_MESSAGE_JOURNAL_DROPPED SD_ID128_MAKE(a5,96,d6,fe,7b,fa,49,94,82,8e,72,30,9e,95,d6,1e)
+#define SD_MESSAGE_JOURNAL_MISSED SD_ID128_MAKE(e9,bf,28,e6,e8,34,48,1b,b6,f4,8f,54,8a,d1,36,06)
+#define SD_MESSAGE_JOURNAL_USAGE SD_ID128_MAKE(ec,38,7f,57,7b,84,4b,8f,a9,48,f3,3c,ad,9a,75,e6)
+
+#define SD_MESSAGE_COREDUMP SD_ID128_MAKE(fc,2e,22,bc,6e,e6,47,b6,b9,07,29,ab,34,a2,50,b1)
+
+#define SD_MESSAGE_SESSION_START SD_ID128_MAKE(8d,45,62,0c,1a,43,48,db,b1,74,10,da,57,c6,0c,66)
+#define SD_MESSAGE_SESSION_STOP SD_ID128_MAKE(33,54,93,94,24,b4,45,6d,98,02,ca,83,33,ed,42,4a)
+#define SD_MESSAGE_SEAT_START SD_ID128_MAKE(fc,be,fc,5d,a2,3d,42,80,93,f9,7c,82,a9,29,0f,7b)
+#define SD_MESSAGE_SEAT_STOP SD_ID128_MAKE(e7,85,2b,fe,46,78,4e,d0,ac,cd,e0,4b,c8,64,c2,d5)
+#define SD_MESSAGE_MACHINE_START SD_ID128_MAKE(24,d8,d4,45,25,73,40,24,96,06,83,81,a6,31,2d,f2)
+#define SD_MESSAGE_MACHINE_STOP SD_ID128_MAKE(58,43,2b,d3,ba,ce,47,7c,b5,14,b5,63,81,b8,a7,58)
+
+#define SD_MESSAGE_TIME_CHANGE SD_ID128_MAKE(c7,a7,87,07,9b,35,4e,aa,a9,e7,7b,37,18,93,cd,27)
+#define SD_MESSAGE_TIMEZONE_CHANGE SD_ID128_MAKE(45,f8,2f,4a,ef,7a,4b,bf,94,2c,e8,61,d1,f2,09,90)
+
+#define SD_MESSAGE_STARTUP_FINISHED SD_ID128_MAKE(b0,7a,24,9c,d0,24,41,4a,82,dd,00,cd,18,13,78,ff)
+
+#define SD_MESSAGE_SLEEP_START SD_ID128_MAKE(6b,bd,95,ee,97,79,41,e4,97,c4,8b,e2,7c,25,41,28)
+#define SD_MESSAGE_SLEEP_STOP SD_ID128_MAKE(88,11,e6,df,2a,8e,40,f5,8a,94,ce,a2,6f,8e,bf,14)
+
+#define SD_MESSAGE_SHUTDOWN SD_ID128_MAKE(98,26,88,66,d1,d5,4a,49,9c,4e,98,92,1d,93,bc,40)
+
+#define SD_MESSAGE_UNIT_STARTING SD_ID128_MAKE(7d,49,58,e8,42,da,4a,75,8f,6c,1c,dc,7b,36,dc,c5)
+#define SD_MESSAGE_UNIT_STARTED SD_ID128_MAKE(39,f5,34,79,d3,a0,45,ac,8e,11,78,62,48,23,1f,bf)
+#define SD_MESSAGE_UNIT_STOPPING SD_ID128_MAKE(de,5b,42,6a,63,be,47,a7,b6,ac,3e,aa,c8,2e,2f,6f)
+#define SD_MESSAGE_UNIT_STOPPED SD_ID128_MAKE(9d,1a,aa,27,d6,01,40,bd,96,36,54,38,aa,d2,02,86)
+#define SD_MESSAGE_UNIT_FAILED SD_ID128_MAKE(be,02,cf,68,55,d2,42,8b,a4,0d,f7,e9,d0,22,f0,3d)
+#define SD_MESSAGE_UNIT_RELOADING SD_ID128_MAKE(d3,4d,03,7f,ff,18,47,e6,ae,66,9a,37,0e,69,47,25)
+#define SD_MESSAGE_UNIT_RELOADED SD_ID128_MAKE(7b,05,eb,c6,68,38,42,22,ba,a8,88,11,79,cf,da,54)
+
+#define SD_MESSAGE_SPAWN_FAILED SD_ID128_MAKE(64,12,57,65,1c,1b,4e,c9,a8,62,4d,7a,40,a9,e1,e7)
+
+#define SD_MESSAGE_FORWARD_SYSLOG_MISSED SD_ID128_MAKE(00,27,22,9c,a0,64,41,81,a7,6c,4e,92,45,8a,fa,2e)
+
+#define SD_MESSAGE_OVERMOUNTING SD_ID128_MAKE(1d,ee,03,69,c7,fc,47,36,b7,09,9b,38,ec,b4,6e,e7)
+
+#define SD_MESSAGE_LID_OPENED SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,6f)
+#define SD_MESSAGE_LID_CLOSED SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,70)
+#define SD_MESSAGE_SYSTEM_DOCKED SD_ID128_MAKE(f5,f4,16,b8,62,07,4b,28,92,7a,48,c3,ba,7d,51,ff)
+#define SD_MESSAGE_SYSTEM_UNDOCKED SD_ID128_MAKE(51,e1,71,bd,58,52,48,56,81,10,14,4c,51,7c,ca,53)
+#define SD_MESSAGE_POWER_KEY SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,71)
+#define SD_MESSAGE_SUSPEND_KEY SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,72)
+#define SD_MESSAGE_HIBERNATE_KEY SD_ID128_MAKE(b7,2e,a4,a2,88,15,45,a0,b5,0e,20,0e,55,b9,b0,73)
+
+#define SD_MESSAGE_INVALID_CONFIGURATION SD_ID128_MAKE(c7,72,d2,4e,9a,88,4c,be,b9,ea,12,62,5c,30,6c,01)
+
+#define SD_MESSAGE_DNSSEC_FAILURE SD_ID128_MAKE(16,75,d7,f1,72,17,40,98,b1,10,8b,f8,c7,dc,8f,5d)
+#define SD_MESSAGE_DNSSEC_TRUST_ANCHOR_REVOKED SD_ID128_MAKE(4d,44,08,cf,d0,d1,44,85,91,84,d1,e6,5d,7c,8a,65)
+#define SD_MESSAGE_DNSSEC_DOWNGRADE SD_ID128_MAKE(36,db,2d,fa,5a,90,45,e1,bd,4a,f5,f9,3e,1c,f0,57)
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/include/systemd/sd-utf8.h b/src/libsystemd/include/systemd/sd-utf8.h
new file mode 100644
index 0000000000..6781983878
--- /dev/null
+++ b/src/libsystemd/include/systemd/sd-utf8.h
@@ -0,0 +1,32 @@
+#ifndef foosdutf8hfoo
+#define foosdutf8hfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "_sd-common.h"
+
+_SD_BEGIN_DECLARATIONS;
+
+_sd_pure_ const char *sd_utf8_is_valid(const char *s);
+_sd_pure_ const char *sd_ascii_is_valid(const char *s);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/libsystemd-pkgconfig.xml b/src/libsystemd/libsystemd-pkgconfig.xml
new file mode 100644
index 0000000000..272da64cd7
--- /dev/null
+++ b/src/libsystemd/libsystemd-pkgconfig.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+
+<refsect1>
+ <title>Notes</title>
+
+ <para id='pkgconfig-text'>These APIs are implemented as a shared
+ library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+</refsect1>
diff --git a/src/libsystemd/sd-bus-errors.xml b/src/libsystemd/sd-bus-errors.xml
new file mode 100644
index 0000000000..d2b81f4e4a
--- /dev/null
+++ b/src/libsystemd/sd-bus-errors.xml
@@ -0,0 +1,309 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-bus-errors">
+
+ <refentryinfo>
+ <title>sd-bus-errors</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-bus-errors</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-bus-errors</refname>
+ <refname>SD_BUS_ERROR_FAILED</refname>
+ <refname>SD_BUS_ERROR_NO_MEMORY</refname>
+ <refname>SD_BUS_ERROR_SERVICE_UNKNOWN</refname>
+ <refname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</refname>
+ <refname>SD_BUS_ERROR_NO_REPLY</refname>
+ <refname>SD_BUS_ERROR_IO_ERROR</refname>
+ <refname>SD_BUS_ERROR_BAD_ADDRESS</refname>
+ <refname>SD_BUS_ERROR_NOT_SUPPORTED</refname>
+ <refname>SD_BUS_ERROR_LIMITS_EXCEEDED</refname>
+ <refname>SD_BUS_ERROR_ACCESS_DENIED</refname>
+ <refname>SD_BUS_ERROR_AUTH_FAILED</refname>
+ <refname>SD_BUS_ERROR_NO_SERVER</refname>
+ <refname>SD_BUS_ERROR_TIMEOUT</refname>
+ <refname>SD_BUS_ERROR_NO_NETWORK</refname>
+ <refname>SD_BUS_ERROR_ADDRESS_IN_USE</refname>
+ <refname>SD_BUS_ERROR_DISCONNECTED</refname>
+ <refname>SD_BUS_ERROR_INVALID_ARGS</refname>
+ <refname>SD_BUS_ERROR_FILE_NOT_FOUND</refname>
+ <refname>SD_BUS_ERROR_FILE_EXISTS</refname>
+ <refname>SD_BUS_ERROR_UNKNOWN_METHOD</refname>
+ <refname>SD_BUS_ERROR_UNKNOWN_OBJECT</refname>
+ <refname>SD_BUS_ERROR_UNKNOWN_INTERFACE</refname>
+ <refname>SD_BUS_ERROR_UNKNOWN_PROPERTY</refname>
+ <refname>SD_BUS_ERROR_PROPERTY_READ_ONLY</refname>
+ <refname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</refname>
+ <refname>SD_BUS_ERROR_INVALID_SIGNATURE</refname>
+ <refname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</refname>
+ <refname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</refname>
+ <refname>SD_BUS_ERROR_MATCH_RULE_INVALID</refname>
+ <refname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</refname>
+
+ <refpurpose>Standard D-Bus error names</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+<funcsynopsisinfo>#define SD_BUS_ERROR_FAILED "org.freedesktop.DBus.Error.Failed"
+#define SD_BUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory"
+#define SD_BUS_ERROR_SERVICE_UNKNOWN "org.freedesktop.DBus.Error.ServiceUnknown"
+#define SD_BUS_ERROR_NAME_HAS_NO_OWNER "org.freedesktop.DBus.Error.NameHasNoOwner"
+#define SD_BUS_ERROR_NO_REPLY "org.freedesktop.DBus.Error.NoReply"
+#define SD_BUS_ERROR_IO_ERROR "org.freedesktop.DBus.Error.IOError"
+#define SD_BUS_ERROR_BAD_ADDRESS "org.freedesktop.DBus.Error.BadAddress"
+#define SD_BUS_ERROR_NOT_SUPPORTED "org.freedesktop.DBus.Error.NotSupported"
+#define SD_BUS_ERROR_LIMITS_EXCEEDED "org.freedesktop.DBus.Error.LimitsExceeded"
+#define SD_BUS_ERROR_ACCESS_DENIED "org.freedesktop.DBus.Error.AccessDenied"
+#define SD_BUS_ERROR_AUTH_FAILED "org.freedesktop.DBus.Error.AuthFailed"
+#define SD_BUS_ERROR_NO_SERVER "org.freedesktop.DBus.Error.NoServer"
+#define SD_BUS_ERROR_TIMEOUT "org.freedesktop.DBus.Error.Timeout"
+#define SD_BUS_ERROR_NO_NETWORK "org.freedesktop.DBus.Error.NoNetwork"
+#define SD_BUS_ERROR_ADDRESS_IN_USE "org.freedesktop.DBus.Error.AddressInUse"
+#define SD_BUS_ERROR_DISCONNECTED "org.freedesktop.DBus.Error.Disconnected"
+#define SD_BUS_ERROR_INVALID_ARGS "org.freedesktop.DBus.Error.InvalidArgs"
+#define SD_BUS_ERROR_FILE_NOT_FOUND "org.freedesktop.DBus.Error.FileNotFound"
+#define SD_BUS_ERROR_FILE_EXISTS "org.freedesktop.DBus.Error.FileExists"
+#define SD_BUS_ERROR_UNKNOWN_METHOD "org.freedesktop.DBus.Error.UnknownMethod"
+#define SD_BUS_ERROR_UNKNOWN_OBJECT "org.freedesktop.DBus.Error.UnknownObject"
+#define SD_BUS_ERROR_UNKNOWN_INTERFACE "org.freedesktop.DBus.Error.UnknownInterface"
+#define SD_BUS_ERROR_UNKNOWN_PROPERTY "org.freedesktop.DBus.Error.UnknownProperty"
+#define SD_BUS_ERROR_PROPERTY_READ_ONLY "org.freedesktop.DBus.Error.PropertyReadOnly"
+#define SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN "org.freedesktop.DBus.Error.UnixProcessIdUnknown"
+#define SD_BUS_ERROR_INVALID_SIGNATURE "org.freedesktop.DBus.Error.InvalidSignature"
+#define SD_BUS_ERROR_INCONSISTENT_MESSAGE "org.freedesktop.DBus.Error.InconsistentMessage"
+#define SD_BUS_ERROR_MATCH_RULE_NOT_FOUND "org.freedesktop.DBus.Error.MatchRuleNotFound"
+#define SD_BUS_ERROR_MATCH_RULE_INVALID "org.freedesktop.DBus.Error.MatchRuleInvalid"
+#define SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED \
+ "org.freedesktop.DBus.Error.InteractiveAuthorizationRequired"</funcsynopsisinfo>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>In addition to the error names user programs define, D-Bus
+ knows a number of generic, standardized error names that are
+ listed below.</para>
+
+ <para>In addition to this list, in sd-bus, the special error
+ namespace <literal>System.Error.</literal> is used to map
+ arbitrary GNU/Linux system errors (as defined by <citerefentry
+ project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>)
+ to D-Bus errors and back. For example, the error
+ <constant>EUCLEAN</constant> is mapped to
+ <literal>System.Error.EUCLEAN</literal> and back.</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_FAILED</varname></term>
+ <listitem><para>A generic error indication. See the error
+ message for further details. This error name should be
+ avoided, in favor of a more expressive error
+ name.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_NO_MEMORY</varname></term>
+ <listitem><para>A memory allocation failed, and the requested
+ operation could not be completed.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_SERVICE_UNKNOWN</varname></term>
+ <listitem><para>The contacted bus service is unknown and
+ cannot be activated.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</varname></term>
+ <listitem><para>The specified bus service name currently has
+ no owner.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_NO_REPLY</varname></term>
+ <listitem><para>A message did not receive a reply. This error
+ is usually generated after a timeout.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_IO_ERROR</varname></term>
+ <listitem><para>Generic input/output error, for example when
+ accessing a socket or other I/O context.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_BAD_ADDRESS</varname></term>
+ <listitem><para>The specified D-Bus bus address string is
+ malformed.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_NOT_SUPPORTED</varname></term>
+ <listitem><para>The requested operation is not supported on
+ the local system.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_LIMITS_EXCEEDED</varname></term>
+ <listitem><para>Some limited resource has been
+ exhausted.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_ACCESS_DENIED</varname></term>
+ <listitem><para>Access to a resource has been denied due to security restrictions.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_AUTH_FAILED</varname></term>
+ <listitem><para>Authentication did not complete successfully.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_NO_SERVER</varname></term>
+ <listitem><para>Unable to connect to the specified server.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_TIMEOUT</varname></term>
+ <listitem><para>An operation timed out. Note that method calls
+ which timeout generate a
+ <varname>SD_BUS_ERROR_NO_REPLY</varname>.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_NO_NETWORK</varname></term>
+ <listitem><para>No network available to execute requested network operation on.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_ADDRESS_IN_USE</varname></term>
+ <listitem><para>The specified network address is already being listened on.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_DISCONNECTED</varname></term>
+ <listitem><para>The connection has been terminated.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_INVALID_ARGS</varname></term>
+ <listitem><para>One or more invalid arguments have been passed.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_FILE_NOT_FOUND</varname></term>
+ <listitem><para>The requested file could not be found.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_FILE_EXISTS</varname></term>
+ <listitem><para>The requested file already exists.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_UNKNOWN_METHOD</varname></term>
+ <listitem><para>The requested method does not exist in the selected interface.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_UNKNOWN_OBJECT</varname></term>
+ <listitem><para>The requested object does not exist in the selected service.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_UNKNOWN_INTERFACE</varname></term>
+ <listitem><para>The requested interface does not exist on the selected object.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_UNKNOWN_PROPERTY</varname></term>
+ <listitem><para>The requested property does not exist in the selected interface.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_PROPERTY_READ_ONLY</varname></term>
+ <listitem><para>A write operation was requested on a read-only property.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</varname></term>
+ <listitem><para>The requested PID is not known.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_INVALID_SIGNATURE</varname></term>
+ <listitem><para>The specified message signature is not
+ valid.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</varname></term>
+ <listitem><para>The passed message does not validate
+ correctly.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</varname></term>
+ <listitem><para>The specified match rule does not exist.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_MATCH_RULE_INVALID</varname></term>
+ <listitem><para>The specified match rule is invalid.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</varname></term>
+ <listitem><para>Access to the requested operation is not
+ permitted. However, it might be available after interactive
+ authentication. This is usually returned by method calls
+ supporting a framework for additional interactive
+ authorization, when interactive authorization was not enabled
+ with the
+ <citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for the method call message.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The various error definitions described here are available
+ as a shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_error</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-bus.xml b/src/libsystemd/sd-bus.xml
new file mode 100644
index 0000000000..336dd33ea0
--- /dev/null
+++ b/src/libsystemd/sd-bus.xml
@@ -0,0 +1,123 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2016 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-bus" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd-bus</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Documentation</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-bus</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-bus</refname>
+ <refpurpose>A lightweight D-Bus and kdbus client library</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+ </funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd</command>
+ </cmdsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>sd-bus.h</filename> provides an implementation
+ of a D-Bus client. It can interoperate both with the traditional
+ <citerefentry project='man-pages'><refentrytitle>dbus-daemon</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ and with kdbus. See
+ <ulink url="http://www.freedesktop.org/software/dbus/" />
+ for more information about the big picture.
+ </para>
+
+ <important>
+ <para>Interfaces described here have not been declared stable yet,
+ and are not accessible from <filename>libsystemd.so</filename>.
+ This documentation is provided in hope it might be useful for
+ developers, without any guarantees of availability or stability.
+ </para>
+ </important>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_bus_default</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_request_name</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_start</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_array</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_string_memfd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_strv</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_can_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_cookie</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_monotonic_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_set_address</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_set_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_creds_get_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_creds_new_from_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_negotiate_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_path_encode</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus-errors</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_error</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_error_add_map</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information about the functions available.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>dbus-daemon</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>dbus-send</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <ulink url="https://developer.gnome.org/gio/stable/gdbus.html">gdbus</ulink>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-bus/Makefile b/src/libsystemd/sd-bus/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-bus/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-bus/busctl-introspect.c b/src/libsystemd/sd-bus/busctl-introspect.c
deleted file mode 100644
index b09509f8e1..0000000000
--- a/src/libsystemd/sd-bus/busctl-introspect.c
+++ /dev/null
@@ -1,790 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "sd-bus.h"
-
-#include "alloc-util.h"
-#include "busctl-introspect.h"
-#include "string-util.h"
-#include "util.h"
-#include "xml.h"
-
-#define NODE_DEPTH_MAX 16
-
-typedef struct Context {
- const XMLIntrospectOps *ops;
- void *userdata;
-
- char *interface_name;
- uint64_t interface_flags;
-
- char *member_name;
- char *member_signature;
- char *member_result;
- uint64_t member_flags;
- bool member_writable;
-
- const char *current;
- void *xml_state;
-} Context;
-
-static void context_reset_member(Context *c) {
- free(c->member_name);
- free(c->member_signature);
- free(c->member_result);
-
- c->member_name = c->member_signature = c->member_result = NULL;
- c->member_flags = 0;
- c->member_writable = false;
-}
-
-static void context_reset_interface(Context *c) {
- c->interface_name = mfree(c->interface_name);
- c->interface_flags = 0;
-
- context_reset_member(c);
-}
-
-static int parse_xml_annotation(Context *context, uint64_t *flags) {
-
- enum {
- STATE_ANNOTATION,
- STATE_NAME,
- STATE_VALUE
- } state = STATE_ANNOTATION;
-
- _cleanup_free_ char *field = NULL, *value = NULL;
-
- assert(context);
-
- for (;;) {
- _cleanup_free_ char *name = NULL;
-
- int t;
-
- t = xml_tokenize(&context->current, &name, &context->xml_state, NULL);
- if (t < 0) {
- log_error("XML parse error.");
- return t;
- }
-
- if (t == XML_END) {
- log_error("Premature end of XML data.");
- return -EBADMSG;
- }
-
- switch (state) {
-
- case STATE_ANNOTATION:
-
- if (t == XML_ATTRIBUTE_NAME) {
-
- if (streq_ptr(name, "name"))
- state = STATE_NAME;
-
- else if (streq_ptr(name, "value"))
- state = STATE_VALUE;
-
- else {
- log_error("Unexpected <annotation> attribute %s.", name);
- return -EBADMSG;
- }
-
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "annotation"))) {
-
- if (flags) {
- if (streq_ptr(field, "org.freedesktop.DBus.Deprecated")) {
-
- if (streq_ptr(value, "true"))
- *flags |= SD_BUS_VTABLE_DEPRECATED;
-
- } else if (streq_ptr(field, "org.freedesktop.DBus.Method.NoReply")) {
-
- if (streq_ptr(value, "true"))
- *flags |= SD_BUS_VTABLE_METHOD_NO_REPLY;
-
- } else if (streq_ptr(field, "org.freedesktop.DBus.Property.EmitsChangedSignal")) {
-
- if (streq_ptr(value, "const"))
- *flags = (*flags & ~(SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION|SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE)) | SD_BUS_VTABLE_PROPERTY_CONST;
- else if (streq_ptr(value, "invalidates"))
- *flags = (*flags & ~(SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE|SD_BUS_VTABLE_PROPERTY_CONST)) | SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION;
- else if (streq_ptr(value, "false"))
- *flags = *flags & ~(SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE|SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION);
- }
- }
-
- return 0;
-
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in <annotation>. (1)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE) {
- free(field);
- field = name;
- name = NULL;
-
- state = STATE_ANNOTATION;
- } else {
- log_error("Unexpected token in <annotation>. (2)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_VALUE:
-
- if (t == XML_ATTRIBUTE_VALUE) {
- free(value);
- value = name;
- name = NULL;
-
- state = STATE_ANNOTATION;
- } else {
- log_error("Unexpected token in <annotation>. (3)");
- return -EINVAL;
- }
-
- break;
-
- default:
- assert_not_reached("Bad state");
- }
- }
-}
-
-static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth) {
-
- enum {
- STATE_NODE,
- STATE_NODE_NAME,
- STATE_INTERFACE,
- STATE_INTERFACE_NAME,
- STATE_METHOD,
- STATE_METHOD_NAME,
- STATE_METHOD_ARG,
- STATE_METHOD_ARG_NAME,
- STATE_METHOD_ARG_TYPE,
- STATE_METHOD_ARG_DIRECTION,
- STATE_SIGNAL,
- STATE_SIGNAL_NAME,
- STATE_SIGNAL_ARG,
- STATE_SIGNAL_ARG_NAME,
- STATE_SIGNAL_ARG_TYPE,
- STATE_PROPERTY,
- STATE_PROPERTY_NAME,
- STATE_PROPERTY_TYPE,
- STATE_PROPERTY_ACCESS,
- } state = STATE_NODE;
-
- _cleanup_free_ char *node_path = NULL, *argument_type = NULL, *argument_direction = NULL;
- const char *np = prefix;
- int r;
-
- assert(context);
- assert(prefix);
-
- if (n_depth > NODE_DEPTH_MAX) {
- log_error("<node> depth too high.");
- return -EINVAL;
- }
-
- for (;;) {
- _cleanup_free_ char *name = NULL;
- int t;
-
- t = xml_tokenize(&context->current, &name, &context->xml_state, NULL);
- if (t < 0) {
- log_error("XML parse error.");
- return t;
- }
-
- if (t == XML_END) {
- log_error("Premature end of XML data.");
- return -EBADMSG;
- }
-
- switch (state) {
-
- case STATE_NODE:
- if (t == XML_ATTRIBUTE_NAME) {
-
- if (streq_ptr(name, "name"))
- state = STATE_NODE_NAME;
- else {
- log_error("Unexpected <node> attribute %s.", name);
- return -EBADMSG;
- }
-
- } else if (t == XML_TAG_OPEN) {
-
- if (streq_ptr(name, "interface"))
- state = STATE_INTERFACE;
- else if (streq_ptr(name, "node")) {
-
- r = parse_xml_node(context, np, n_depth+1);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected <node> tag %s.", name);
- return -EBADMSG;
- }
-
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "node"))) {
-
- if (context->ops->on_path) {
- r = context->ops->on_path(node_path ? node_path : np, context->userdata);
- if (r < 0)
- return r;
- }
-
- return 0;
-
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in <node>. (1)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_NODE_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE) {
-
- free(node_path);
-
- if (name[0] == '/') {
- node_path = name;
- name = NULL;
- } else {
-
- if (endswith(prefix, "/"))
- node_path = strappend(prefix, name);
- else
- node_path = strjoin(prefix, "/", name, NULL);
- if (!node_path)
- return log_oom();
- }
-
- np = node_path;
- state = STATE_NODE;
- } else {
- log_error("Unexpected token in <node>. (2)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_INTERFACE:
-
- if (t == XML_ATTRIBUTE_NAME) {
- if (streq_ptr(name, "name"))
- state = STATE_INTERFACE_NAME;
- else {
- log_error("Unexpected <interface> attribute %s.", name);
- return -EBADMSG;
- }
-
- } else if (t == XML_TAG_OPEN) {
- if (streq_ptr(name, "method"))
- state = STATE_METHOD;
- else if (streq_ptr(name, "signal"))
- state = STATE_SIGNAL;
- else if (streq_ptr(name, "property")) {
- context->member_flags |= SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE;
- state = STATE_PROPERTY;
- } else if (streq_ptr(name, "annotation")) {
- r = parse_xml_annotation(context, &context->interface_flags);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected <interface> tag %s.", name);
- return -EINVAL;
- }
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "interface"))) {
-
- if (n_depth == 0) {
- if (context->ops->on_interface) {
- r = context->ops->on_interface(context->interface_name, context->interface_flags, context->userdata);
- if (r < 0)
- return r;
- }
-
- context_reset_interface(context);
- }
-
- state = STATE_NODE;
-
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in <interface>. (1)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_INTERFACE_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE) {
- if (n_depth == 0) {
- free(context->interface_name);
- context->interface_name = name;
- name = NULL;
- }
-
- state = STATE_INTERFACE;
- } else {
- log_error("Unexpected token in <interface>. (2)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_METHOD:
-
- if (t == XML_ATTRIBUTE_NAME) {
- if (streq_ptr(name, "name"))
- state = STATE_METHOD_NAME;
- else {
- log_error("Unexpected <method> attribute %s", name);
- return -EBADMSG;
- }
- } else if (t == XML_TAG_OPEN) {
- if (streq_ptr(name, "arg"))
- state = STATE_METHOD_ARG;
- else if (streq_ptr(name, "annotation")) {
- r = parse_xml_annotation(context, &context->member_flags);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected <method> tag %s.", name);
- return -EINVAL;
- }
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "method"))) {
-
- if (n_depth == 0) {
- if (context->ops->on_method) {
- r = context->ops->on_method(context->interface_name, context->member_name, context->member_signature, context->member_result, context->member_flags, context->userdata);
- if (r < 0)
- return r;
- }
-
- context_reset_member(context);
- }
-
- state = STATE_INTERFACE;
-
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in <method> (1).");
- return -EINVAL;
- }
-
- break;
-
- case STATE_METHOD_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE) {
-
- if (n_depth == 0) {
- free(context->member_name);
- context->member_name = name;
- name = NULL;
- }
-
- state = STATE_METHOD;
- } else {
- log_error("Unexpected token in <method> (2).");
- return -EINVAL;
- }
-
- break;
-
- case STATE_METHOD_ARG:
-
- if (t == XML_ATTRIBUTE_NAME) {
- if (streq_ptr(name, "name"))
- state = STATE_METHOD_ARG_NAME;
- else if (streq_ptr(name, "type"))
- state = STATE_METHOD_ARG_TYPE;
- else if (streq_ptr(name, "direction"))
- state = STATE_METHOD_ARG_DIRECTION;
- else {
- log_error("Unexpected method <arg> attribute %s.", name);
- return -EBADMSG;
- }
- } else if (t == XML_TAG_OPEN) {
- if (streq_ptr(name, "annotation")) {
- r = parse_xml_annotation(context, NULL);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected method <arg> tag %s.", name);
- return -EINVAL;
- }
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "arg"))) {
-
- if (n_depth == 0) {
-
- if (argument_type) {
- if (!argument_direction || streq(argument_direction, "in")) {
- if (!strextend(&context->member_signature, argument_type, NULL))
- return log_oom();
- } else if (streq(argument_direction, "out")) {
- if (!strextend(&context->member_result, argument_type, NULL))
- return log_oom();
- }
- }
-
- argument_type = mfree(argument_type);
- argument_direction = mfree(argument_direction);
- }
-
- state = STATE_METHOD;
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in method <arg>. (1)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_METHOD_ARG_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE)
- state = STATE_METHOD_ARG;
- else {
- log_error("Unexpected token in method <arg>. (2)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_METHOD_ARG_TYPE:
-
- if (t == XML_ATTRIBUTE_VALUE) {
- free(argument_type);
- argument_type = name;
- name = NULL;
-
- state = STATE_METHOD_ARG;
- } else {
- log_error("Unexpected token in method <arg>. (3)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_METHOD_ARG_DIRECTION:
-
- if (t == XML_ATTRIBUTE_VALUE) {
- free(argument_direction);
- argument_direction = name;
- name = NULL;
-
- state = STATE_METHOD_ARG;
- } else {
- log_error("Unexpected token in method <arg>. (4)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_SIGNAL:
-
- if (t == XML_ATTRIBUTE_NAME) {
- if (streq_ptr(name, "name"))
- state = STATE_SIGNAL_NAME;
- else {
- log_error("Unexpected <signal> attribute %s.", name);
- return -EBADMSG;
- }
- } else if (t == XML_TAG_OPEN) {
- if (streq_ptr(name, "arg"))
- state = STATE_SIGNAL_ARG;
- else if (streq_ptr(name, "annotation")) {
- r = parse_xml_annotation(context, &context->member_flags);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected <signal> tag %s.", name);
- return -EINVAL;
- }
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "signal"))) {
-
- if (n_depth == 0) {
- if (context->ops->on_signal) {
- r = context->ops->on_signal(context->interface_name, context->member_name, context->member_signature, context->member_flags, context->userdata);
- if (r < 0)
- return r;
- }
-
- context_reset_member(context);
- }
-
- state = STATE_INTERFACE;
-
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in <signal>. (1)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_SIGNAL_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE) {
-
- if (n_depth == 0) {
- free(context->member_name);
- context->member_name = name;
- name = NULL;
- }
-
- state = STATE_SIGNAL;
- } else {
- log_error("Unexpected token in <signal>. (2)");
- return -EINVAL;
- }
-
- break;
-
-
- case STATE_SIGNAL_ARG:
-
- if (t == XML_ATTRIBUTE_NAME) {
- if (streq_ptr(name, "name"))
- state = STATE_SIGNAL_ARG_NAME;
- else if (streq_ptr(name, "type"))
- state = STATE_SIGNAL_ARG_TYPE;
- else {
- log_error("Unexpected signal <arg> attribute %s.", name);
- return -EBADMSG;
- }
- } else if (t == XML_TAG_OPEN) {
- if (streq_ptr(name, "annotation")) {
- r = parse_xml_annotation(context, NULL);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected signal <arg> tag %s.", name);
- return -EINVAL;
- }
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "arg"))) {
-
- if (argument_type) {
- if (!strextend(&context->member_signature, argument_type, NULL))
- return log_oom();
-
- argument_type = mfree(argument_type);
- }
-
- state = STATE_SIGNAL;
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in signal <arg> (1).");
- return -EINVAL;
- }
-
- break;
-
- case STATE_SIGNAL_ARG_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE)
- state = STATE_SIGNAL_ARG;
- else {
- log_error("Unexpected token in signal <arg> (2).");
- return -EINVAL;
- }
-
- break;
-
- case STATE_SIGNAL_ARG_TYPE:
-
- if (t == XML_ATTRIBUTE_VALUE) {
- free(argument_type);
- argument_type = name;
- name = NULL;
-
- state = STATE_SIGNAL_ARG;
- } else {
- log_error("Unexpected token in signal <arg> (3).");
- return -EINVAL;
- }
-
- break;
-
- case STATE_PROPERTY:
-
- if (t == XML_ATTRIBUTE_NAME) {
- if (streq_ptr(name, "name"))
- state = STATE_PROPERTY_NAME;
- else if (streq_ptr(name, "type"))
- state = STATE_PROPERTY_TYPE;
- else if (streq_ptr(name, "access"))
- state = STATE_PROPERTY_ACCESS;
- else {
- log_error("Unexpected <property> attribute %s.", name);
- return -EBADMSG;
- }
- } else if (t == XML_TAG_OPEN) {
-
- if (streq_ptr(name, "annotation")) {
- r = parse_xml_annotation(context, &context->member_flags);
- if (r < 0)
- return r;
- } else {
- log_error("Unexpected <property> tag %s.", name);
- return -EINVAL;
- }
-
- } else if (t == XML_TAG_CLOSE_EMPTY ||
- (t == XML_TAG_CLOSE && streq_ptr(name, "property"))) {
-
- if (n_depth == 0) {
- if (context->ops->on_property) {
- r = context->ops->on_property(context->interface_name, context->member_name, context->member_signature, context->member_writable, context->member_flags, context->userdata);
- if (r < 0)
- return r;
- }
-
- context_reset_member(context);
- }
-
- state = STATE_INTERFACE;
-
- } else if (t != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token in <property>. (1)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_PROPERTY_NAME:
-
- if (t == XML_ATTRIBUTE_VALUE) {
-
- if (n_depth == 0) {
- free(context->member_name);
- context->member_name = name;
- name = NULL;
- }
- state = STATE_PROPERTY;
- } else {
- log_error("Unexpected token in <property>. (2)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_PROPERTY_TYPE:
-
- if (t == XML_ATTRIBUTE_VALUE) {
-
- if (n_depth == 0) {
- free(context->member_signature);
- context->member_signature = name;
- name = NULL;
- }
-
- state = STATE_PROPERTY;
- } else {
- log_error("Unexpected token in <property>. (3)");
- return -EINVAL;
- }
-
- break;
-
- case STATE_PROPERTY_ACCESS:
-
- if (t == XML_ATTRIBUTE_VALUE) {
-
- if (streq(name, "readwrite") || streq(name, "write"))
- context->member_writable = true;
-
- state = STATE_PROPERTY;
- } else {
- log_error("Unexpected token in <property>. (4)");
- return -EINVAL;
- }
-
- break;
- }
- }
-}
-
-int parse_xml_introspect(const char *prefix, const char *xml, const XMLIntrospectOps *ops, void *userdata) {
- Context context = {
- .ops = ops,
- .userdata = userdata,
- .current = xml,
- };
-
- int r;
-
- assert(prefix);
- assert(xml);
- assert(ops);
-
- for (;;) {
- _cleanup_free_ char *name = NULL;
-
- r = xml_tokenize(&context.current, &name, &context.xml_state, NULL);
- if (r < 0) {
- log_error("XML parse error");
- goto finish;
- }
-
- if (r == XML_END) {
- r = 0;
- break;
- }
-
- if (r == XML_TAG_OPEN) {
-
- if (streq(name, "node")) {
- r = parse_xml_node(&context, prefix, 0);
- if (r < 0)
- goto finish;
- } else {
- log_error("Unexpected tag '%s' in introspection data.", name);
- r = -EBADMSG;
- goto finish;
- }
- } else if (r != XML_TEXT || !in_charset(name, WHITESPACE)) {
- log_error("Unexpected token.");
- r = -EBADMSG;
- goto finish;
- }
- }
-
-finish:
- context_reset_interface(&context);
-
- return r;
-}
diff --git a/src/libsystemd/sd-bus/busctl-introspect.h b/src/libsystemd/sd-bus/busctl-introspect.h
deleted file mode 100644
index d922e352db..0000000000
--- a/src/libsystemd/sd-bus/busctl-introspect.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#pragma once
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdbool.h>
-
-typedef struct XMLIntrospectOps {
- int (*on_path)(const char *path, void *userdata);
- int (*on_interface)(const char *name, uint64_t flags, void *userdata);
- int (*on_method)(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata);
- int (*on_signal)(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata);
- int (*on_property)(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata);
-} XMLIntrospectOps;
-
-int parse_xml_introspect(const char *prefix, const char *xml, const XMLIntrospectOps *ops, void *userdata);
diff --git a/src/libsystemd/sd-bus/busctl.c b/src/libsystemd/sd-bus/busctl.c
deleted file mode 100644
index bfe967bfb0..0000000000
--- a/src/libsystemd/sd-bus/busctl.c
+++ /dev/null
@@ -1,2086 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright 2013 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <getopt.h>
-
-#include "sd-bus.h"
-
-#include "alloc-util.h"
-#include "bus-dump.h"
-#include "bus-internal.h"
-#include "bus-signature.h"
-#include "bus-type.h"
-#include "bus-util.h"
-#include "busctl-introspect.h"
-#include "escape.h"
-#include "fd-util.h"
-#include "locale-util.h"
-#include "log.h"
-#include "pager.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "set.h"
-#include "strv.h"
-#include "terminal-util.h"
-#include "user-util.h"
-#include "util.h"
-
-static bool arg_no_pager = false;
-static bool arg_legend = true;
-static char *arg_address = NULL;
-static bool arg_unique = false;
-static bool arg_acquired = false;
-static bool arg_activatable = false;
-static bool arg_show_machine = false;
-static char **arg_matches = NULL;
-static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
-static char *arg_host = NULL;
-static bool arg_user = false;
-static size_t arg_snaplen = 4096;
-static bool arg_list = false;
-static bool arg_quiet = false;
-static bool arg_verbose = false;
-static bool arg_expect_reply = true;
-static bool arg_auto_start = true;
-static bool arg_allow_interactive_authorization = true;
-static bool arg_augment_creds = true;
-static usec_t arg_timeout = 0;
-
-#define NAME_IS_ACQUIRED INT_TO_PTR(1)
-#define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
-
-static int list_bus_names(sd_bus *bus, char **argv) {
- _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
- _cleanup_free_ char **merged = NULL;
- _cleanup_hashmap_free_ Hashmap *names = NULL;
- char **i;
- int r;
- size_t max_i = 0;
- unsigned n = 0;
- void *v;
- char *k;
- Iterator iterator;
-
- assert(bus);
-
- if (!arg_unique && !arg_acquired && !arg_activatable)
- arg_unique = arg_acquired = arg_activatable = true;
-
- r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to list names: %m");
-
- pager_open(arg_no_pager, false);
-
- names = hashmap_new(&string_hash_ops);
- if (!names)
- return log_oom();
-
- STRV_FOREACH(i, acquired) {
- max_i = MAX(max_i, strlen(*i));
-
- r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
- if (r < 0)
- return log_error_errno(r, "Failed to add to hashmap: %m");
- }
-
- STRV_FOREACH(i, activatable) {
- max_i = MAX(max_i, strlen(*i));
-
- r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
- if (r < 0 && r != -EEXIST)
- return log_error_errno(r, "Failed to add to hashmap: %m");
- }
-
- merged = new(char*, hashmap_size(names) + 1);
- HASHMAP_FOREACH_KEY(v, k, names, iterator)
- merged[n++] = k;
-
- merged[n] = NULL;
- strv_sort(merged);
-
- if (arg_legend) {
- printf("%-*s %*s %-*s %-*s %-*s %-*s %-*s %-*s",
- (int) max_i, "NAME", 10, "PID", 15, "PROCESS", 16, "USER", 13, "CONNECTION", 25, "UNIT", 10, "SESSION", 19, "DESCRIPTION");
-
- if (arg_show_machine)
- puts(" MACHINE");
- else
- putchar('\n');
- }
-
- STRV_FOREACH(i, merged) {
- _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
- sd_id128_t mid;
-
- if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
- /* Activatable */
-
- printf("%-*s", (int) max_i, *i);
- printf(" - - - (activatable) - - ");
- if (arg_show_machine)
- puts(" -");
- else
- putchar('\n');
- continue;
-
- }
-
- if (!arg_unique && (*i)[0] == ':')
- continue;
-
- if (!arg_acquired && (*i)[0] != ':')
- continue;
-
- printf("%-*s", (int) max_i, *i);
-
- r = sd_bus_get_name_creds(
- bus, *i,
- (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
- SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
- SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
- SD_BUS_CREDS_DESCRIPTION, &creds);
- if (r >= 0) {
- const char *unique, *session, *unit, *cn;
- pid_t pid;
- uid_t uid;
-
- r = sd_bus_creds_get_pid(creds, &pid);
- if (r >= 0) {
- const char *comm = NULL;
-
- sd_bus_creds_get_comm(creds, &comm);
-
- printf(" %10lu %-15s", (unsigned long) pid, strna(comm));
- } else
- fputs(" - - ", stdout);
-
- r = sd_bus_creds_get_euid(creds, &uid);
- if (r >= 0) {
- _cleanup_free_ char *u = NULL;
-
- u = uid_to_name(uid);
- if (!u)
- return log_oom();
-
- if (strlen(u) > 16)
- u[16] = 0;
-
- printf(" %-16s", u);
- } else
- fputs(" - ", stdout);
-
- r = sd_bus_creds_get_unique_name(creds, &unique);
- if (r >= 0)
- printf(" %-13s", unique);
- else
- fputs(" - ", stdout);
-
- r = sd_bus_creds_get_unit(creds, &unit);
- if (r >= 0) {
- _cleanup_free_ char *e;
-
- e = ellipsize(unit, 25, 100);
- if (!e)
- return log_oom();
-
- printf(" %-25s", e);
- } else
- fputs(" - ", stdout);
-
- r = sd_bus_creds_get_session(creds, &session);
- if (r >= 0)
- printf(" %-10s", session);
- else
- fputs(" - ", stdout);
-
- r = sd_bus_creds_get_description(creds, &cn);
- if (r >= 0)
- printf(" %-19s", cn);
- else
- fputs(" - ", stdout);
-
- } else
- printf(" - - - - - - - ");
-
- if (arg_show_machine) {
- r = sd_bus_get_name_machine_id(bus, *i, &mid);
- if (r >= 0) {
- char m[SD_ID128_STRING_MAX];
- printf(" %s\n", sd_id128_to_string(mid, m));
- } else
- puts(" -");
- } else
- putchar('\n');
- }
-
- return 0;
-}
-
-static void print_subtree(const char *prefix, const char *path, char **l) {
- const char *vertical, *space;
- char **n;
-
- /* We assume the list is sorted. Let's first skip over the
- * entry we are looking at. */
- for (;;) {
- if (!*l)
- return;
-
- if (!streq(*l, path))
- break;
-
- l++;
- }
-
- vertical = strjoina(prefix, special_glyph(TREE_VERTICAL));
- space = strjoina(prefix, special_glyph(TREE_SPACE));
-
- for (;;) {
- bool has_more = false;
-
- if (!*l || !path_startswith(*l, path))
- break;
-
- n = l + 1;
- for (;;) {
- if (!*n || !path_startswith(*n, path))
- break;
-
- if (!path_startswith(*n, *l)) {
- has_more = true;
- break;
- }
-
- n++;
- }
-
- printf("%s%s%s\n", prefix, special_glyph(has_more ? TREE_BRANCH : TREE_RIGHT), *l);
-
- print_subtree(has_more ? vertical : space, *l, l);
- l = n;
- }
-}
-
-static void print_tree(const char *prefix, char **l) {
-
- pager_open(arg_no_pager, false);
-
- prefix = strempty(prefix);
-
- if (arg_list) {
- char **i;
-
- STRV_FOREACH(i, l)
- printf("%s%s\n", prefix, *i);
- return;
- }
-
- if (strv_isempty(l)) {
- printf("No objects discovered.\n");
- return;
- }
-
- if (streq(l[0], "/") && !l[1]) {
- printf("Only root object discovered.\n");
- return;
- }
-
- print_subtree(prefix, "/", l);
-}
-
-static int on_path(const char *path, void *userdata) {
- Set *paths = userdata;
- int r;
-
- assert(paths);
-
- r = set_put_strdup(paths, path);
- if (r < 0)
- return log_oom();
-
- return 0;
-}
-
-static int find_nodes(sd_bus *bus, const char *service, const char *path, Set *paths, bool many) {
- static const XMLIntrospectOps ops = {
- .on_path = on_path,
- };
-
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- const char *xml;
- int r;
-
- r = sd_bus_call_method(bus, service, path, "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
- if (r < 0) {
- if (many)
- printf("Failed to introspect object %s of service %s: %s\n", path, service, bus_error_message(&error, r));
- else
- log_error("Failed to introspect object %s of service %s: %s", path, service, bus_error_message(&error, r));
- return r;
- }
-
- r = sd_bus_message_read(reply, "s", &xml);
- if (r < 0)
- return bus_log_parse_error(r);
-
- return parse_xml_introspect(path, xml, &ops, paths);
-}
-
-static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool many) {
- _cleanup_set_free_free_ Set *paths = NULL, *done = NULL, *failed = NULL;
- _cleanup_free_ char **l = NULL;
- char *m;
- int r;
-
- paths = set_new(&string_hash_ops);
- if (!paths)
- return log_oom();
-
- done = set_new(&string_hash_ops);
- if (!done)
- return log_oom();
-
- failed = set_new(&string_hash_ops);
- if (!failed)
- return log_oom();
-
- m = strdup("/");
- if (!m)
- return log_oom();
-
- r = set_put(paths, m);
- if (r < 0) {
- free(m);
- return log_oom();
- }
-
- for (;;) {
- _cleanup_free_ char *p = NULL;
- int q;
-
- p = set_steal_first(paths);
- if (!p)
- break;
-
- if (set_contains(done, p) ||
- set_contains(failed, p))
- continue;
-
- q = find_nodes(bus, service, p, paths, many);
- if (q < 0) {
- if (r >= 0)
- r = q;
-
- q = set_put(failed, p);
- } else
- q = set_put(done, p);
-
- if (q < 0)
- return log_oom();
-
- assert(q != 0);
- p = NULL;
- }
-
- pager_open(arg_no_pager, false);
-
- l = set_get_strv(done);
- if (!l)
- return log_oom();
-
- strv_sort(l);
- print_tree(prefix, l);
-
- fflush(stdout);
-
- return r;
-}
-
-static int tree(sd_bus *bus, char **argv) {
- char **i;
- int r = 0;
-
- if (!arg_unique && !arg_acquired)
- arg_acquired = true;
-
- if (strv_length(argv) <= 1) {
- _cleanup_strv_free_ char **names = NULL;
- bool not_first = false;
-
- r = sd_bus_list_names(bus, &names, NULL);
- if (r < 0)
- return log_error_errno(r, "Failed to get name list: %m");
-
- pager_open(arg_no_pager, false);
-
- STRV_FOREACH(i, names) {
- int q;
-
- if (!arg_unique && (*i)[0] == ':')
- continue;
-
- if (!arg_acquired && (*i)[0] == ':')
- continue;
-
- if (not_first)
- printf("\n");
-
- printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
-
- q = tree_one(bus, *i, NULL, true);
- if (q < 0 && r >= 0)
- r = q;
-
- not_first = true;
- }
- } else {
- STRV_FOREACH(i, argv+1) {
- int q;
-
- if (i > argv+1)
- printf("\n");
-
- if (argv[2]) {
- pager_open(arg_no_pager, false);
- printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
- }
-
- q = tree_one(bus, *i, NULL, !!argv[2]);
- if (q < 0 && r >= 0)
- r = q;
- }
- }
-
- return r;
-}
-
-static int format_cmdline(sd_bus_message *m, FILE *f, bool needs_space) {
- int r;
-
- for (;;) {
- const char *contents = NULL;
- char type;
- union {
- uint8_t u8;
- uint16_t u16;
- int16_t s16;
- uint32_t u32;
- int32_t s32;
- uint64_t u64;
- int64_t s64;
- double d64;
- const char *string;
- int i;
- } basic;
-
- r = sd_bus_message_peek_type(m, &type, &contents);
- if (r < 0)
- return r;
- if (r == 0)
- return needs_space;
-
- if (bus_type_is_container(type) > 0) {
-
- r = sd_bus_message_enter_container(m, type, contents);
- if (r < 0)
- return r;
-
- if (type == SD_BUS_TYPE_ARRAY) {
- unsigned n = 0;
-
- /* count array entries */
- for (;;) {
-
- r = sd_bus_message_skip(m, contents);
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- n++;
- }
-
- r = sd_bus_message_rewind(m, false);
- if (r < 0)
- return r;
-
- if (needs_space)
- fputc(' ', f);
-
- fprintf(f, "%u", n);
- needs_space = true;
-
- } else if (type == SD_BUS_TYPE_VARIANT) {
-
- if (needs_space)
- fputc(' ', f);
-
- fprintf(f, "%s", contents);
- needs_space = true;
- }
-
- r = format_cmdline(m, f, needs_space);
- if (r < 0)
- return r;
-
- needs_space = r > 0;
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return r;
-
- continue;
- }
-
- r = sd_bus_message_read_basic(m, type, &basic);
- if (r < 0)
- return r;
-
- if (needs_space)
- fputc(' ', f);
-
- switch (type) {
- case SD_BUS_TYPE_BYTE:
- fprintf(f, "%u", basic.u8);
- break;
-
- case SD_BUS_TYPE_BOOLEAN:
- fputs(true_false(basic.i), f);
- break;
-
- case SD_BUS_TYPE_INT16:
- fprintf(f, "%i", basic.s16);
- break;
-
- case SD_BUS_TYPE_UINT16:
- fprintf(f, "%u", basic.u16);
- break;
-
- case SD_BUS_TYPE_INT32:
- fprintf(f, "%i", basic.s32);
- break;
-
- case SD_BUS_TYPE_UINT32:
- fprintf(f, "%u", basic.u32);
- break;
-
- case SD_BUS_TYPE_INT64:
- fprintf(f, "%" PRIi64, basic.s64);
- break;
-
- case SD_BUS_TYPE_UINT64:
- fprintf(f, "%" PRIu64, basic.u64);
- break;
-
- case SD_BUS_TYPE_DOUBLE:
- fprintf(f, "%g", basic.d64);
- break;
-
- case SD_BUS_TYPE_STRING:
- case SD_BUS_TYPE_OBJECT_PATH:
- case SD_BUS_TYPE_SIGNATURE: {
- _cleanup_free_ char *b = NULL;
-
- b = cescape(basic.string);
- if (!b)
- return -ENOMEM;
-
- fprintf(f, "\"%s\"", b);
- break;
- }
-
- case SD_BUS_TYPE_UNIX_FD:
- fprintf(f, "%i", basic.i);
- break;
-
- default:
- assert_not_reached("Unknown basic type.");
- }
-
- needs_space = true;
- }
-}
-
-typedef struct Member {
- const char *type;
- char *interface;
- char *name;
- char *signature;
- char *result;
- char *value;
- bool writable;
- uint64_t flags;
-} Member;
-
-static void member_hash_func(const void *p, struct siphash *state) {
- const Member *m = p;
- uint64_t arity = 1;
-
- assert(m);
- assert(m->type);
-
- string_hash_func(m->type, state);
-
- arity += !!m->name + !!m->interface;
-
- uint64_hash_func(&arity, state);
-
- if (m->name)
- string_hash_func(m->name, state);
-
- if (m->interface)
- string_hash_func(m->interface, state);
-}
-
-static int member_compare_func(const void *a, const void *b) {
- const Member *x = a, *y = b;
- int d;
-
- assert(x);
- assert(y);
- assert(x->type);
- assert(y->type);
-
- d = strcmp_ptr(x->interface, y->interface);
- if (d != 0)
- return d;
-
- d = strcmp(x->type, y->type);
- if (d != 0)
- return d;
-
- return strcmp_ptr(x->name, y->name);
-}
-
-static int member_compare_funcp(const void *a, const void *b) {
- const Member *const * x = (const Member *const *) a, * const *y = (const Member *const *) b;
-
- return member_compare_func(*x, *y);
-}
-
-static void member_free(Member *m) {
- if (!m)
- return;
-
- free(m->interface);
- free(m->name);
- free(m->signature);
- free(m->result);
- free(m->value);
- free(m);
-}
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(Member*, member_free);
-
-static void member_set_free(Set *s) {
- Member *m;
-
- while ((m = set_steal_first(s)))
- member_free(m);
-
- set_free(s);
-}
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, member_set_free);
-
-static int on_interface(const char *interface, uint64_t flags, void *userdata) {
- _cleanup_(member_freep) Member *m;
- Set *members = userdata;
- int r;
-
- assert(interface);
- assert(members);
-
- m = new0(Member, 1);
- if (!m)
- return log_oom();
-
- m->type = "interface";
- m->flags = flags;
-
- r = free_and_strdup(&m->interface, interface);
- if (r < 0)
- return log_oom();
-
- r = set_put(members, m);
- if (r <= 0) {
- log_error("Duplicate interface");
- return -EINVAL;
- }
-
- m = NULL;
- return 0;
-}
-
-static int on_method(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata) {
- _cleanup_(member_freep) Member *m;
- Set *members = userdata;
- int r;
-
- assert(interface);
- assert(name);
-
- m = new0(Member, 1);
- if (!m)
- return log_oom();
-
- m->type = "method";
- m->flags = flags;
-
- r = free_and_strdup(&m->interface, interface);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->name, name);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->signature, signature);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->result, result);
- if (r < 0)
- return log_oom();
-
- r = set_put(members, m);
- if (r <= 0) {
- log_error("Duplicate method");
- return -EINVAL;
- }
-
- m = NULL;
- return 0;
-}
-
-static int on_signal(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata) {
- _cleanup_(member_freep) Member *m;
- Set *members = userdata;
- int r;
-
- assert(interface);
- assert(name);
-
- m = new0(Member, 1);
- if (!m)
- return log_oom();
-
- m->type = "signal";
- m->flags = flags;
-
- r = free_and_strdup(&m->interface, interface);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->name, name);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->signature, signature);
- if (r < 0)
- return log_oom();
-
- r = set_put(members, m);
- if (r <= 0) {
- log_error("Duplicate signal");
- return -EINVAL;
- }
-
- m = NULL;
- return 0;
-}
-
-static int on_property(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata) {
- _cleanup_(member_freep) Member *m;
- Set *members = userdata;
- int r;
-
- assert(interface);
- assert(name);
-
- m = new0(Member, 1);
- if (!m)
- return log_oom();
-
- m->type = "property";
- m->flags = flags;
- m->writable = writable;
-
- r = free_and_strdup(&m->interface, interface);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->name, name);
- if (r < 0)
- return log_oom();
-
- r = free_and_strdup(&m->signature, signature);
- if (r < 0)
- return log_oom();
-
- r = set_put(members, m);
- if (r <= 0) {
- log_error("Duplicate property");
- return -EINVAL;
- }
-
- m = NULL;
- return 0;
-}
-
-static const char *strdash(const char *x) {
- return isempty(x) ? "-" : x;
-}
-
-static int introspect(sd_bus *bus, char **argv) {
- static const struct hash_ops member_hash_ops = {
- .hash = member_hash_func,
- .compare = member_compare_func,
- };
-
- static const XMLIntrospectOps ops = {
- .on_interface = on_interface,
- .on_method = on_method,
- .on_signal = on_signal,
- .on_property = on_property,
- };
-
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_(member_set_freep) Set *members = NULL;
- Iterator i;
- Member *m;
- const char *xml;
- int r;
- unsigned name_width, type_width, signature_width, result_width;
- Member **sorted = NULL;
- unsigned k = 0, j, n_args;
-
- n_args = strv_length(argv);
- if (n_args < 3) {
- log_error("Requires service and object path argument.");
- return -EINVAL;
- }
-
- if (n_args > 4) {
- log_error("Too many arguments.");
- return -EINVAL;
- }
-
- members = set_new(&member_hash_ops);
- if (!members)
- return log_oom();
-
- r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
- if (r < 0) {
- log_error("Failed to introspect object %s of service %s: %s", argv[2], argv[1], bus_error_message(&error, r));
- return r;
- }
-
- r = sd_bus_message_read(reply, "s", &xml);
- if (r < 0)
- return bus_log_parse_error(r);
-
- /* First, get list of all properties */
- r = parse_xml_introspect(argv[2], xml, &ops, members);
- if (r < 0)
- return r;
-
- /* Second, find the current values for them */
- SET_FOREACH(m, members, i) {
-
- if (!streq(m->type, "property"))
- continue;
-
- if (m->value)
- continue;
-
- if (argv[3] && !streq(argv[3], m->interface))
- continue;
-
- r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", m->interface);
- if (r < 0) {
- log_error("%s", bus_error_message(&error, r));
- return r;
- }
-
- r = sd_bus_message_enter_container(reply, 'a', "{sv}");
- if (r < 0)
- return bus_log_parse_error(r);
-
- for (;;) {
- Member *z;
- _cleanup_free_ char *buf = NULL;
- _cleanup_fclose_ FILE *mf = NULL;
- size_t sz = 0;
- const char *name;
-
- r = sd_bus_message_enter_container(reply, 'e', "sv");
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (r == 0)
- break;
-
- r = sd_bus_message_read(reply, "s", &name);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_enter_container(reply, 'v', NULL);
- if (r < 0)
- return bus_log_parse_error(r);
-
- mf = open_memstream(&buf, &sz);
- if (!mf)
- return log_oom();
-
- r = format_cmdline(reply, mf, false);
- if (r < 0)
- return bus_log_parse_error(r);
-
- fclose(mf);
- mf = NULL;
-
- z = set_get(members, &((Member) {
- .type = "property",
- .interface = m->interface,
- .name = (char*) name }));
- if (z) {
- free(z->value);
- z->value = buf;
- buf = NULL;
- }
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
- }
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
- }
-
- pager_open(arg_no_pager, false);
-
- name_width = strlen("NAME");
- type_width = strlen("TYPE");
- signature_width = strlen("SIGNATURE");
- result_width = strlen("RESULT/VALUE");
-
- sorted = newa(Member*, set_size(members));
-
- SET_FOREACH(m, members, i) {
-
- if (argv[3] && !streq(argv[3], m->interface))
- continue;
-
- if (m->interface)
- name_width = MAX(name_width, strlen(m->interface));
- if (m->name)
- name_width = MAX(name_width, strlen(m->name) + 1);
- if (m->type)
- type_width = MAX(type_width, strlen(m->type));
- if (m->signature)
- signature_width = MAX(signature_width, strlen(m->signature));
- if (m->result)
- result_width = MAX(result_width, strlen(m->result));
- if (m->value)
- result_width = MAX(result_width, strlen(m->value));
-
- sorted[k++] = m;
- }
-
- if (result_width > 40)
- result_width = 40;
-
- qsort(sorted, k, sizeof(Member*), member_compare_funcp);
-
- if (arg_legend) {
- printf("%-*s %-*s %-*s %-*s %s\n",
- (int) name_width, "NAME",
- (int) type_width, "TYPE",
- (int) signature_width, "SIGNATURE",
- (int) result_width, "RESULT/VALUE",
- "FLAGS");
- }
-
- for (j = 0; j < k; j++) {
- _cleanup_free_ char *ellipsized = NULL;
- const char *rv;
- bool is_interface;
-
- m = sorted[j];
-
- if (argv[3] && !streq(argv[3], m->interface))
- continue;
-
- is_interface = streq(m->type, "interface");
-
- if (argv[3] && is_interface)
- continue;
-
- if (m->value) {
- ellipsized = ellipsize(m->value, result_width, 100);
- if (!ellipsized)
- return log_oom();
-
- rv = ellipsized;
- } else
- rv = strdash(m->result);
-
- printf("%s%s%-*s%s %-*s %-*s %-*s%s%s%s%s%s%s\n",
- is_interface ? ansi_highlight() : "",
- is_interface ? "" : ".",
- - !is_interface + (int) name_width, strdash(streq_ptr(m->type, "interface") ? m->interface : m->name),
- is_interface ? ansi_normal() : "",
- (int) type_width, strdash(m->type),
- (int) signature_width, strdash(m->signature),
- (int) result_width, rv,
- (m->flags & SD_BUS_VTABLE_DEPRECATED) ? " deprecated" : (m->flags || m->writable ? "" : " -"),
- (m->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ? " no-reply" : "",
- (m->flags & SD_BUS_VTABLE_PROPERTY_CONST) ? " const" : "",
- (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) ? " emits-change" : "",
- (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION) ? " emits-invalidation" : "",
- m->writable ? " writable" : "");
- }
-
- return 0;
-}
-
-static int message_dump(sd_bus_message *m, FILE *f) {
- return bus_message_dump(m, f, BUS_MESSAGE_DUMP_WITH_HEADER);
-}
-
-static int message_pcap(sd_bus_message *m, FILE *f) {
- return bus_message_pcap_frame(m, arg_snaplen, f);
-}
-
-static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FILE *f)) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- char **i;
- uint32_t flags = 0;
- int r;
-
- /* upgrade connection; it's not used for anything else after this call */
- r = sd_bus_message_new_method_call(bus, &message, "org.freedesktop.DBus", "/org/freedesktop/DBus", "org.freedesktop.DBus.Monitoring", "BecomeMonitor");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(message, 'a', "s");
- if (r < 0)
- return bus_log_create_error(r);
-
- STRV_FOREACH(i, argv+1) {
- _cleanup_free_ char *m = NULL;
-
- if (!service_name_is_valid(*i)) {
- log_error("Invalid service name '%s'", *i);
- return -EINVAL;
- }
-
- m = strjoin("sender='", *i, "'", NULL);
- if (!m)
- return log_oom();
-
- r = sd_bus_message_append_basic(message, 's', m);
- if (r < 0)
- return bus_log_create_error(r);
-
- free(m);
- m = strjoin("destination='", *i, "'", NULL);
- if (!m)
- return log_oom();
-
- r = sd_bus_message_append_basic(message, 's', m);
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- STRV_FOREACH(i, arg_matches) {
- r = sd_bus_message_append_basic(message, 's', *i);
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- r = sd_bus_message_close_container(message);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append_basic(message, 'u', &flags);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_call(bus, message, arg_timeout, &error, NULL);
- if (r < 0) {
- log_error("%s", bus_error_message(&error, r));
- return r;
- }
-
- log_info("Monitoring bus message stream.");
-
- for (;;) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
-
- r = sd_bus_process(bus, &m);
- if (r < 0)
- return log_error_errno(r, "Failed to process bus: %m");
-
- if (m) {
- dump(m, stdout);
- fflush(stdout);
-
- if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected") > 0) {
- log_info("Connection terminated, exiting.");
- return 0;
- }
-
- continue;
- }
-
- if (r > 0)
- continue;
-
- r = sd_bus_wait(bus, (uint64_t) -1);
- if (r < 0)
- return log_error_errno(r, "Failed to wait for bus: %m");
- }
-}
-
-static int capture(sd_bus *bus, char *argv[]) {
- int r;
-
- if (isatty(fileno(stdout)) > 0) {
- log_error("Refusing to write message data to console, please redirect output to a file.");
- return -EINVAL;
- }
-
- bus_pcap_header(arg_snaplen, stdout);
-
- r = monitor(bus, argv, message_pcap);
- if (r < 0)
- return r;
-
- if (ferror(stdout)) {
- log_error("Couldn't write capture file.");
- return -EIO;
- }
-
- return r;
-}
-
-static int status(sd_bus *bus, char *argv[]) {
- _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
- pid_t pid;
- int r;
-
- assert(bus);
-
- if (strv_length(argv) > 2) {
- log_error("Expects no or one argument.");
- return -EINVAL;
- }
-
- if (argv[1]) {
- r = parse_pid(argv[1], &pid);
- if (r < 0)
- r = sd_bus_get_name_creds(
- bus,
- argv[1],
- (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
- &creds);
- else
- r = sd_bus_creds_new_from_pid(
- &creds,
- pid,
- _SD_BUS_CREDS_ALL);
- } else {
- const char *scope, *address;
- sd_id128_t bus_id;
-
- r = sd_bus_get_address(bus, &address);
- if (r >= 0)
- printf("BusAddress=%s%s%s\n", ansi_highlight(), address, ansi_normal());
-
- r = sd_bus_get_scope(bus, &scope);
- if (r >= 0)
- printf("BusScope=%s%s%s\n", ansi_highlight(), scope, ansi_normal());
-
- r = sd_bus_get_bus_id(bus, &bus_id);
- if (r >= 0)
- printf("BusID=%s" SD_ID128_FORMAT_STR "%s\n", ansi_highlight(), SD_ID128_FORMAT_VAL(bus_id), ansi_normal());
-
- r = sd_bus_get_owner_creds(
- bus,
- (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
- &creds);
- }
-
- if (r < 0)
- return log_error_errno(r, "Failed to get credentials: %m");
-
- bus_creds_dump(creds, NULL, false);
- return 0;
-}
-
-static int message_append_cmdline(sd_bus_message *m, const char *signature, char ***x) {
- char **p;
- int r;
-
- assert(m);
- assert(signature);
- assert(x);
-
- p = *x;
-
- for (;;) {
- const char *v;
- char t;
-
- t = *signature;
- v = *p;
-
- if (t == 0)
- break;
- if (!v) {
- log_error("Too few parameters for signature.");
- return -EINVAL;
- }
-
- signature++;
- p++;
-
- switch (t) {
-
- case SD_BUS_TYPE_BOOLEAN:
-
- r = parse_boolean(v);
- if (r < 0) {
- log_error("Failed to parse as boolean: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &r);
- break;
-
- case SD_BUS_TYPE_BYTE: {
- uint8_t z;
-
- r = safe_atou8(v, &z);
- if (r < 0) {
- log_error("Failed to parse as byte (unsigned 8bit integer): %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_INT16: {
- int16_t z;
-
- r = safe_atoi16(v, &z);
- if (r < 0) {
- log_error("Failed to parse as signed 16bit integer: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_UINT16: {
- uint16_t z;
-
- r = safe_atou16(v, &z);
- if (r < 0) {
- log_error("Failed to parse as unsigned 16bit integer: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_INT32: {
- int32_t z;
-
- r = safe_atoi32(v, &z);
- if (r < 0) {
- log_error("Failed to parse as signed 32bit integer: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_UINT32: {
- uint32_t z;
-
- r = safe_atou32(v, &z);
- if (r < 0) {
- log_error("Failed to parse as unsigned 32bit integer: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_INT64: {
- int64_t z;
-
- r = safe_atoi64(v, &z);
- if (r < 0) {
- log_error("Failed to parse as signed 64bit integer: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_UINT64: {
- uint64_t z;
-
- r = safe_atou64(v, &z);
- if (r < 0) {
- log_error("Failed to parse as unsigned 64bit integer: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
-
- case SD_BUS_TYPE_DOUBLE: {
- double z;
-
- r = safe_atod(v, &z);
- if (r < 0) {
- log_error("Failed to parse as double precision floating point: %s", v);
- return r;
- }
-
- r = sd_bus_message_append_basic(m, t, &z);
- break;
- }
-
- case SD_BUS_TYPE_STRING:
- case SD_BUS_TYPE_OBJECT_PATH:
- case SD_BUS_TYPE_SIGNATURE:
-
- r = sd_bus_message_append_basic(m, t, v);
- break;
-
- case SD_BUS_TYPE_ARRAY: {
- uint32_t n;
- size_t k;
-
- r = safe_atou32(v, &n);
- if (r < 0) {
- log_error("Failed to parse number of array entries: %s", v);
- return r;
- }
-
- r = signature_element_length(signature, &k);
- if (r < 0) {
- log_error("Invalid array signature.");
- return r;
- }
-
- {
- unsigned i;
- char s[k + 1];
- memcpy(s, signature, k);
- s[k] = 0;
-
- r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, s);
- if (r < 0)
- return bus_log_create_error(r);
-
- for (i = 0; i < n; i++) {
- r = message_append_cmdline(m, s, &p);
- if (r < 0)
- return r;
- }
- }
-
- signature += k;
-
- r = sd_bus_message_close_container(m);
- break;
- }
-
- case SD_BUS_TYPE_VARIANT:
- r = sd_bus_message_open_container(m, SD_BUS_TYPE_VARIANT, v);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = message_append_cmdline(m, v, &p);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- break;
-
- case SD_BUS_TYPE_STRUCT_BEGIN:
- case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
- size_t k;
-
- signature--;
- p--;
-
- r = signature_element_length(signature, &k);
- if (r < 0) {
- log_error("Invalid struct/dict entry signature.");
- return r;
- }
-
- {
- char s[k-1];
- memcpy(s, signature + 1, k - 2);
- s[k - 2] = 0;
-
- r = sd_bus_message_open_container(m, t == SD_BUS_TYPE_STRUCT_BEGIN ? SD_BUS_TYPE_STRUCT : SD_BUS_TYPE_DICT_ENTRY, s);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = message_append_cmdline(m, s, &p);
- if (r < 0)
- return r;
- }
-
- signature += k;
-
- r = sd_bus_message_close_container(m);
- break;
- }
-
- case SD_BUS_TYPE_UNIX_FD:
- log_error("UNIX file descriptor not supported as type.");
- return -EINVAL;
-
- default:
- log_error("Unknown signature type %c.", t);
- return -EINVAL;
- }
-
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- *x = p;
- return 0;
-}
-
-static int call(sd_bus *bus, char *argv[]) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
- int r;
-
- assert(bus);
-
- if (strv_length(argv) < 5) {
- log_error("Expects at least four arguments.");
- return -EINVAL;
- }
-
- r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], argv[3], argv[4]);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_set_expect_reply(m, arg_expect_reply);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_set_auto_start(m, arg_auto_start);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_set_allow_interactive_authorization(m, arg_allow_interactive_authorization);
- if (r < 0)
- return bus_log_create_error(r);
-
- if (!isempty(argv[5])) {
- char **p;
-
- p = argv+6;
-
- r = message_append_cmdline(m, argv[5], &p);
- if (r < 0)
- return r;
-
- if (*p) {
- log_error("Too many parameters for signature.");
- return -EINVAL;
- }
- }
-
- if (!arg_expect_reply) {
- r = sd_bus_send(bus, m, NULL);
- if (r < 0) {
- log_error("Failed to send message.");
- return r;
- }
-
- return 0;
- }
-
- r = sd_bus_call(bus, m, arg_timeout, &error, &reply);
- if (r < 0) {
- log_error("%s", bus_error_message(&error, r));
- return r;
- }
-
- r = sd_bus_message_is_empty(reply);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (r == 0 && !arg_quiet) {
-
- if (arg_verbose) {
- pager_open(arg_no_pager, false);
-
- r = bus_message_dump(reply, stdout, 0);
- if (r < 0)
- return r;
- } else {
-
- fputs(sd_bus_message_get_signature(reply, true), stdout);
- fputc(' ', stdout);
-
- r = format_cmdline(reply, stdout, false);
- if (r < 0)
- return bus_log_parse_error(r);
-
- fputc('\n', stdout);
- }
- }
-
- return 0;
-}
-
-static int get_property(sd_bus *bus, char *argv[]) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- unsigned n;
- char **i;
- int r;
-
- assert(bus);
-
- n = strv_length(argv);
- if (n < 5) {
- log_error("Expects at least four arguments.");
- return -EINVAL;
- }
-
- STRV_FOREACH(i, argv + 4) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
- const char *contents = NULL;
- char type;
-
- r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", argv[3], *i);
- if (r < 0) {
- log_error("%s", bus_error_message(&error, r));
- return r;
- }
-
- r = sd_bus_message_peek_type(reply, &type, &contents);
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_enter_container(reply, 'v', contents);
- if (r < 0)
- return bus_log_parse_error(r);
-
- if (arg_verbose) {
- pager_open(arg_no_pager, false);
-
- r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
- if (r < 0)
- return r;
- } else {
- fputs(contents, stdout);
- fputc(' ', stdout);
-
- r = format_cmdline(reply, stdout, false);
- if (r < 0)
- return bus_log_parse_error(r);
-
- fputc('\n', stdout);
- }
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- return bus_log_parse_error(r);
- }
-
- return 0;
-}
-
-static int set_property(sd_bus *bus, char *argv[]) {
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- unsigned n;
- char **p;
- int r;
-
- assert(bus);
-
- n = strv_length(argv);
- if (n < 6) {
- log_error("Expects at least five arguments.");
- return -EINVAL;
- }
-
- r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Set");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(m, "ss", argv[3], argv[4]);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, 'v', argv[5]);
- if (r < 0)
- return bus_log_create_error(r);
-
- p = argv+6;
- r = message_append_cmdline(m, argv[5], &p);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- if (*p) {
- log_error("Too many parameters for signature.");
- return -EINVAL;
- }
-
- r = sd_bus_call(bus, m, arg_timeout, &error, NULL);
- if (r < 0) {
- log_error("%s", bus_error_message(&error, r));
- return r;
- }
-
- return 0;
-}
-
-static int help(void) {
- printf("%s [OPTIONS...] {COMMAND} ...\n\n"
- "Introspect the bus.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --no-pager Do not pipe output into a pager\n"
- " --no-legend Do not show the headers and footers\n"
- " --system Connect to system bus\n"
- " --user Connect to user bus\n"
- " -H --host=[USER@]HOST Operate on remote host\n"
- " -M --machine=CONTAINER Operate on local container\n"
- " --address=ADDRESS Connect to bus specified by address\n"
- " --show-machine Show machine ID column in list\n"
- " --unique Only show unique names\n"
- " --acquired Only show acquired names\n"
- " --activatable Only show activatable names\n"
- " --match=MATCH Only show matching messages\n"
- " --size=SIZE Maximum length of captured packet\n"
- " --list Don't show tree, but simple object path list\n"
- " --quiet Don't show method call reply\n"
- " --verbose Show result values in long format\n"
- " --expect-reply=BOOL Expect a method call reply\n"
- " --auto-start=BOOL Auto-start destination service\n"
- " --allow-interactive-authorization=BOOL\n"
- " Allow interactive authorization for operation\n"
- " --timeout=SECS Maximum time to wait for method call completion\n"
- " --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
- "Commands:\n"
- " list List bus names\n"
- " status [SERVICE] Show bus service, process or bus owner credentials\n"
- " monitor [SERVICE...] Show bus traffic\n"
- " capture [SERVICE...] Capture bus traffic as pcap\n"
- " tree [SERVICE...] Show object tree of service\n"
- " introspect SERVICE OBJECT [INTERFACE]\n"
- " call SERVICE OBJECT INTERFACE METHOD [SIGNATURE [ARGUMENT...]]\n"
- " Call a method\n"
- " get-property SERVICE OBJECT INTERFACE PROPERTY...\n"
- " Get property value\n"
- " set-property SERVICE OBJECT INTERFACE PROPERTY SIGNATURE ARGUMENT...\n"
- " Set property value\n"
- " help Show this help\n"
- , program_invocation_short_name);
-
- return 0;
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_VERSION = 0x100,
- ARG_NO_PAGER,
- ARG_NO_LEGEND,
- ARG_SYSTEM,
- ARG_USER,
- ARG_ADDRESS,
- ARG_MATCH,
- ARG_SHOW_MACHINE,
- ARG_UNIQUE,
- ARG_ACQUIRED,
- ARG_ACTIVATABLE,
- ARG_SIZE,
- ARG_LIST,
- ARG_VERBOSE,
- ARG_EXPECT_REPLY,
- ARG_AUTO_START,
- ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
- ARG_TIMEOUT,
- ARG_AUGMENT_CREDS,
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
- { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
- { "system", no_argument, NULL, ARG_SYSTEM },
- { "user", no_argument, NULL, ARG_USER },
- { "address", required_argument, NULL, ARG_ADDRESS },
- { "show-machine", no_argument, NULL, ARG_SHOW_MACHINE },
- { "unique", no_argument, NULL, ARG_UNIQUE },
- { "acquired", no_argument, NULL, ARG_ACQUIRED },
- { "activatable", no_argument, NULL, ARG_ACTIVATABLE },
- { "match", required_argument, NULL, ARG_MATCH },
- { "host", required_argument, NULL, 'H' },
- { "machine", required_argument, NULL, 'M' },
- { "size", required_argument, NULL, ARG_SIZE },
- { "list", no_argument, NULL, ARG_LIST },
- { "quiet", no_argument, NULL, 'q' },
- { "verbose", no_argument, NULL, ARG_VERBOSE },
- { "expect-reply", required_argument, NULL, ARG_EXPECT_REPLY },
- { "auto-start", required_argument, NULL, ARG_AUTO_START },
- { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
- { "timeout", required_argument, NULL, ARG_TIMEOUT },
- { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
- {},
- };
-
- int c, r;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "hH:M:q", options, NULL)) >= 0)
-
- switch (c) {
-
- case 'h':
- return help();
-
- case ARG_VERSION:
- return version();
-
- case ARG_NO_PAGER:
- arg_no_pager = true;
- break;
-
- case ARG_NO_LEGEND:
- arg_legend = false;
- break;
-
- case ARG_USER:
- arg_user = true;
- break;
-
- case ARG_SYSTEM:
- arg_user = false;
- break;
-
- case ARG_ADDRESS:
- arg_address = optarg;
- break;
-
- case ARG_SHOW_MACHINE:
- arg_show_machine = true;
- break;
-
- case ARG_UNIQUE:
- arg_unique = true;
- break;
-
- case ARG_ACQUIRED:
- arg_acquired = true;
- break;
-
- case ARG_ACTIVATABLE:
- arg_activatable = true;
- break;
-
- case ARG_MATCH:
- if (strv_extend(&arg_matches, optarg) < 0)
- return log_oom();
- break;
-
- case ARG_SIZE: {
- uint64_t sz;
-
- r = parse_size(optarg, 1024, &sz);
- if (r < 0) {
- log_error("Failed to parse size: %s", optarg);
- return r;
- }
-
- if ((uint64_t) (size_t) sz != sz) {
- log_error("Size out of range.");
- return -E2BIG;
- }
-
- arg_snaplen = (size_t) sz;
- break;
- }
-
- case ARG_LIST:
- arg_list = true;
- break;
-
- case 'H':
- arg_transport = BUS_TRANSPORT_REMOTE;
- arg_host = optarg;
- break;
-
- case 'M':
- arg_transport = BUS_TRANSPORT_MACHINE;
- arg_host = optarg;
- break;
-
- case 'q':
- arg_quiet = true;
- break;
-
- case ARG_VERBOSE:
- arg_verbose = true;
- break;
-
- case ARG_EXPECT_REPLY:
- r = parse_boolean(optarg);
- if (r < 0) {
- log_error("Failed to parse --expect-reply= parameter.");
- return r;
- }
-
- arg_expect_reply = !!r;
- break;
-
-
- case ARG_AUTO_START:
- r = parse_boolean(optarg);
- if (r < 0) {
- log_error("Failed to parse --auto-start= parameter.");
- return r;
- }
-
- arg_auto_start = !!r;
- break;
-
-
- case ARG_ALLOW_INTERACTIVE_AUTHORIZATION:
- r = parse_boolean(optarg);
- if (r < 0) {
- log_error("Failed to parse --allow-interactive-authorization= parameter.");
- return r;
- }
-
- arg_allow_interactive_authorization = !!r;
- break;
-
- case ARG_TIMEOUT:
- r = parse_sec(optarg, &arg_timeout);
- if (r < 0) {
- log_error("Failed to parse --timeout= parameter.");
- return r;
- }
-
- break;
-
- case ARG_AUGMENT_CREDS:
- r = parse_boolean(optarg);
- if (r < 0) {
- log_error("Failed to parse --augment-creds= parameter.");
- return r;
- }
-
- arg_augment_creds = !!r;
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option");
- }
-
- return 1;
-}
-
-static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
- assert(bus);
-
- if (optind >= argc ||
- streq(argv[optind], "list"))
- return list_bus_names(bus, argv + optind);
-
- if (streq(argv[optind], "monitor"))
- return monitor(bus, argv + optind, message_dump);
-
- if (streq(argv[optind], "capture"))
- return capture(bus, argv + optind);
-
- if (streq(argv[optind], "status"))
- return status(bus, argv + optind);
-
- if (streq(argv[optind], "tree"))
- return tree(bus, argv + optind);
-
- if (streq(argv[optind], "introspect"))
- return introspect(bus, argv + optind);
-
- if (streq(argv[optind], "call"))
- return call(bus, argv + optind);
-
- if (streq(argv[optind], "get-property"))
- return get_property(bus, argv + optind);
-
- if (streq(argv[optind], "set-property"))
- return set_property(bus, argv + optind);
-
- if (streq(argv[optind], "help"))
- return help();
-
- log_error("Unknown command '%s'", argv[optind]);
- return -EINVAL;
-}
-
-int main(int argc, char *argv[]) {
- _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
- int r;
-
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- goto finish;
-
- r = sd_bus_new(&bus);
- if (r < 0) {
- log_error_errno(r, "Failed to allocate bus: %m");
- goto finish;
- }
-
- if (streq_ptr(argv[optind], "monitor") ||
- streq_ptr(argv[optind], "capture")) {
-
- r = sd_bus_set_monitor(bus, true);
- if (r < 0) {
- log_error_errno(r, "Failed to set monitor mode: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
- if (r < 0) {
- log_error_errno(r, "Failed to enable credentials: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_timestamp(bus, true);
- if (r < 0) {
- log_error_errno(r, "Failed to enable timestamps: %m");
- goto finish;
- }
-
- r = sd_bus_negotiate_fds(bus, true);
- if (r < 0) {
- log_error_errno(r, "Failed to enable fds: %m");
- goto finish;
- }
- }
-
- r = sd_bus_set_bus_client(bus, true);
- if (r < 0) {
- log_error_errno(r, "Failed to set bus client: %m");
- goto finish;
- }
-
- if (arg_address)
- r = sd_bus_set_address(bus, arg_address);
- else {
- switch (arg_transport) {
-
- case BUS_TRANSPORT_LOCAL:
- if (arg_user) {
- bus->is_user = true;
- r = bus_set_address_user(bus);
- } else {
- bus->is_system = true;
- r = bus_set_address_system(bus);
- }
- break;
-
- case BUS_TRANSPORT_REMOTE:
- r = bus_set_address_system_remote(bus, arg_host);
- break;
-
- case BUS_TRANSPORT_MACHINE:
- r = bus_set_address_system_machine(bus, arg_host);
- break;
-
- default:
- assert_not_reached("Hmm, unknown transport type.");
- }
- }
- if (r < 0) {
- log_error_errno(r, "Failed to set address: %m");
- goto finish;
- }
-
- r = sd_bus_start(bus);
- if (r < 0) {
- log_error_errno(r, "Failed to connect to bus: %m");
- goto finish;
- }
-
- r = busctl_main(bus, argc, argv);
-
-finish:
- pager_close();
-
- strv_free(arg_matches);
-
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
diff --git a/src/libsystemd/sd-daemon.xml b/src/libsystemd/sd-daemon.xml
new file mode 100644
index 0000000000..b06d99f346
--- /dev/null
+++ b/src/libsystemd/sd-daemon.xml
@@ -0,0 +1,144 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-daemon"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd-daemon</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-daemon</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-daemon</refname>
+ <refname>SD_EMERG</refname>
+ <refname>SD_ALERT</refname>
+ <refname>SD_CRIT</refname>
+ <refname>SD_ERR</refname>
+ <refname>SD_WARNING</refname>
+ <refname>SD_NOTICE</refname>
+ <refname>SD_INFO</refname>
+ <refname>SD_DEBUG</refname>
+ <refpurpose>APIs for
+ new-style daemons</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-daemon.h&gt;</funcsynopsisinfo>
+ </funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd</command>
+ </cmdsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>sd-daemon.h</filename> provides APIs for new-style
+ daemons, as implemented by the
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ service manager.</para>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_booted</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information about the functions implemented. In addition
+ to these functions, a couple of logging prefixes are defined as
+ macros:</para>
+
+ <programlisting>#define SD_EMERG "&lt;0&gt;" /* system is unusable */
+#define SD_ALERT "&lt;1&gt;" /* action must be taken immediately */
+#define SD_CRIT "&lt;2&gt;" /* critical conditions */
+#define SD_ERR "&lt;3&gt;" /* error conditions */
+#define SD_WARNING "&lt;4&gt;" /* warning conditions */
+#define SD_NOTICE "&lt;5&gt;" /* normal but significant condition */
+#define SD_INFO "&lt;6&gt;" /* informational */
+#define SD_DEBUG "&lt;7&gt;" /* debug-level messages */</programlisting>
+
+ <para>These prefixes are intended to be used in conjunction with
+ stderr-based logging as implemented by systemd. If a systemd
+ service definition file is configured with
+ <varname>StandardError=journal</varname>,
+ <varname>StandardError=syslog</varname> or
+ <varname>StandardError=kmsg</varname>, these prefixes can be used
+ to encode a log level in lines printed. This is similar to the
+ kernel <function>printk()</function>-style logging. See
+ <citerefentry><refentrytitle>klogctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for more information.</para>
+
+ <para>The log levels are identical to
+ <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>'s
+ log level system. To use these prefixes simply prefix every line
+ with one of these strings. A line that is not prefixed will be
+ logged at the default log level SD_INFO.</para>
+
+ <example>
+ <title>Hello World</title>
+
+ <para>A daemon may log with the log level NOTICE by issuing this
+ call:</para>
+
+ <programlisting>fprintf(stderr, SD_NOTICE "Hello World!\n");</programlisting>
+ </example>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_booted</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-daemon/Makefile b/src/libsystemd/sd-daemon/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/libsystemd/sd-daemon/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-device/Makefile b/src/libsystemd/sd-device/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/libsystemd/sd-device/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-event.xml b/src/libsystemd/sd-event.xml
new file mode 100644
index 0000000000..fc615f0906
--- /dev/null
+++ b/src/libsystemd/sd-event.xml
@@ -0,0 +1,187 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-event" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd-event</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-event</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-event</refname>
+ <refpurpose>A generic event loop implementation</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+ </funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd</command>
+ </cmdsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>sd-event.h</filename> provides a generic event
+ loop implementation, based on Linux <citerefentry
+ project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+ </para>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_run</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_get_event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_get_pending</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_set_watchdog</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information about the functions available.</para>
+
+ <para>The event loop design is targeted on running a separate
+ instance of the event loop in each thread; it has no concept of
+ distributing events from a single event loop instance onto
+ multiple worker threads. Dispatching events is strictly ordered
+ and subject to configurable priorities. In each event loop
+ iteration a single event source is dispatched. Each time an event
+ source is dispatched the kernel is polled for new events, before
+ the next event source is dispatched. The event loop is designed to
+ honour priorities and provide fairness within each priority. It is
+ not designed to provide optimal throughput, as this contradicts
+ these goals due the limitations of the underlying <citerefentry
+ project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ primitives.</para>
+
+ <para>The event loop implementation provides the following features:</para>
+
+ <orderedlist>
+ <listitem><para>I/O event sources, based on <citerefentry
+ project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>'s
+ file descriptor watching, including edge triggered events (<constant>EPOLLET</constant>). See <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>Timer event sources, based on <citerefentry
+ project='man-pages'><refentrytitle>timerfd_create</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ supporting the <constant>CLOCK_MONOTONIC</constant>,
+ <constant>CLOCK_REALTIME</constant>,
+ <constant>CLOCK_BOOTIME</constant> clocks, as well as the
+ <constant>CLOCK_REALTIME_ALARM</constant> and
+ <constant>CLOCK_BOOTTIME_ALARM</constant> clocks that can resume
+ the system from suspend. When creating timer events a required
+ accuracy parameter may be specified which allows coalescing of
+ timer events to minimize power consumption. See <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>UNIX process signal events, based on
+ <citerefentry
+ project='man-pages'><refentrytitle>signalfd</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ including full support for real-time signals, and queued parameters. See <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>Child process state change events, based on
+ <citerefentry project='man-pages'><refentrytitle>waitid</refentrytitle><manvolnum>2</manvolnum></citerefentry>. See <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>Static event sources, of three types: defer,
+ post and exit, for invoking calls in each event loop, after
+ other event sources or at event loop termination. See
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>Event sources may be assigned a 64bit priority
+ value, that controls the order in which event sources are
+ dispatched if multiple are pending simultaneously. See
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>The event loop may automatically send watchdog
+ notification messages to the service manager. See
+ <citerefentry><refentrytitle>sd_event_set_watchdog</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ <listitem><para>The event loop may be integrated into foreign
+ event loops, such as the GLib one. See
+ <citerefentry><refentrytitle>sd_event_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for an example.</para></listitem>
+ </orderedlist>
+
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_run</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_get_event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_get_pending</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_set_watchdog</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>timerfd_create</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>signalfd</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>waitid</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-event/Makefile b/src/libsystemd/sd-event/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-event/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-hwdb/Makefile b/src/libsystemd/sd-hwdb/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-hwdb/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-id128.xml b/src/libsystemd/sd-id128.xml
new file mode 100644
index 0000000000..ea7972055d
--- /dev/null
+++ b/src/libsystemd/sd-id128.xml
@@ -0,0 +1,166 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-id128"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd-id128</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-id128</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-id128</refname>
+ <refname>sd_id128_t</refname>
+ <refname>SD_ID128_MAKE</refname>
+ <refname>SD_ID128_CONST_STR</refname>
+ <refname>SD_ID128_FORMAT_STR</refname>
+ <refname>SD_ID128_FORMAT_VAL</refname>
+ <refname>sd_id128_equal</refname>
+ <refpurpose>APIs for processing 128-bit IDs</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-id128.h&gt;</funcsynopsisinfo>
+ </funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd</command>
+ </cmdsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>sd-id128.h</filename> provides APIs to process and
+ generate 128-bit ID values. The 128-bit ID values processed and
+ generated by these APIs are a generalization of OSF UUIDs as
+ defined by <ulink url="https://tools.ietf.org/html/rfc4122">RFC
+ 4122</ulink> but use a simpler string format. These functions
+ impose no structure on the used IDs, much unlike OSF UUIDs or
+ Microsoft GUIDs, but are fully compatible with those types of IDs.
+ </para>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_id128_to_string</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_randomize</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information about the implemented functions.</para>
+
+ <para>A 128-bit ID is implemented as the following
+ union type:</para>
+
+ <programlisting>typedef union sd_id128 {
+ uint8_t bytes[16];
+ uint64_t qwords[2];
+} sd_id128_t;</programlisting>
+
+ <para>This union type allows accessing the 128-bit ID as 16
+ separate bytes or two 64-bit words. It is generally safer to
+ access the ID components by their 8-bit array to avoid endianness
+ issues. This union is intended to be passed call-by-value (as
+ opposed to call-by-reference) and may be directly manipulated by
+ clients.</para>
+
+ <para>A couple of macros are defined to denote and decode 128-bit
+ IDs:</para>
+
+ <para><function>SD_ID128_MAKE()</function> may be used to denote a
+ constant 128-bit ID in source code. A commonly used idiom is to
+ assign a name to a 128-bit ID using this macro:</para>
+
+ <programlisting>#define SD_MESSAGE_COREDUMP SD_ID128_MAKE(fc,2e,22,bc,6e,e6,47,b6,b9,07,29,ab,34,a2,50,b1)</programlisting>
+
+ <para><function>SD_ID128_CONST_STR()</function> may be used to
+ convert constant 128-bit IDs into constant strings for output. The
+ following example code will output the string
+ "fc2e22bc6ee647b6b90729ab34a250b1":</para>
+ <programlisting>int main(int argc, char *argv[]) {
+ puts(SD_ID128_CONST_STR(SD_MESSAGE_COREDUMP));
+}</programlisting>
+
+ <para><function>SD_ID128_FORMAT_STR</function> and
+ <function>SD_ID128_FORMAT_VAL()</function> may be used to format a
+ 128-bit ID in a
+ <citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ format string, as shown in the following example:</para>
+
+ <programlisting>int main(int argc, char *argv[]) {
+ sd_id128_t id;
+ id = SD_ID128_MAKE(ee,89,be,71,bd,6e,43,d6,91,e6,c5,5d,eb,03,02,07);
+ printf("The ID encoded in this C file is " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(id));
+ return 0;
+}</programlisting>
+
+ <para>Use <function>sd_id128_equal()</function> to compare two 128-bit IDs:</para>
+
+ <programlisting>int main(int argc, char *argv[]) {
+ sd_id128_t a, b, c;
+ a = SD_ID128_MAKE(ee,89,be,71,bd,6e,43,d6,91,e6,c5,5d,eb,03,02,07);
+ b = SD_ID128_MAKE(f2,28,88,9c,5f,09,44,15,9d,d7,04,77,58,cb,e7,3e);
+ c = a;
+ assert(sd_id128_equal(a, c));
+ assert(!sd_id128_equal(a, b));
+ return 0;
+}</programlisting>
+
+ <para>Note that new, randomized IDs may be generated with
+ <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s
+ <option>--new-id</option> option.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_to_string</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_randomize</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-id128/Makefile b/src/libsystemd/sd-id128/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-id128/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-journal.xml b/src/libsystemd/sd-journal.xml
new file mode 100644
index 0000000000..09747a480c
--- /dev/null
+++ b/src/libsystemd/sd-journal.xml
@@ -0,0 +1,133 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-journal"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd-journal</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-journal</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-journal</refname>
+ <refpurpose>APIs for submitting and querying log entries to and
+ from the journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+ </funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd</command>
+ </cmdsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>sd-journal.h</filename> provides APIs to submit
+ and query log entries. The APIs exposed act both as client for the
+ <citerefentry><refentrytitle>systemd-journald.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ journal service and as parser for the journal files on disk.
+ </para>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_journal_print</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_stream_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_add_match</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_seek_head</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_query_enumerate</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_enumerate_fields</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cutoff_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cutoff_monotonic_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_usage</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_catalog</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_has_runtime_files</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_journal_has_persistent_files</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information about the functions implemented.</para>
+
+ <para>Command line access for submitting entries to the journal is
+ available with the
+ <citerefentry><refentrytitle>systemd-cat</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ tool. Command line access for querying entries from the journal is
+ available with the
+ <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ tool.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_print</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_stream_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_add_match</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_seek_head</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_query_enumerate</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_enumerate_fields</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cutoff_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cutoff_monotonic_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_usage</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_query_unique</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_catalog</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_has_runtime_files</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_has_persistent_files</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-login.xml b/src/libsystemd/sd-login.xml
new file mode 100644
index 0000000000..328f71164d
--- /dev/null
+++ b/src/libsystemd/sd-login.xml
@@ -0,0 +1,135 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd-login" conditional='HAVE_PAM'
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd-login</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd-login</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd-login</refname>
+ <refpurpose>APIs for
+ tracking logins</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+ </funcsynopsis>
+
+ <cmdsynopsis>
+ <command>pkg-config --cflags --libs libsystemd</command>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><filename>sd-login.h</filename> provides APIs to introspect
+ and monitor seat, login session and user status information on the
+ local system. </para>
+
+ <para>See <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/multiseat">Multi-Seat
+ on Linux</ulink> for an introduction into multi-seat support on
+ Linux, the background for this set of APIs.</para>
+
+ <para>Note that these APIs only allow purely passive access and
+ monitoring of seats, sessions and users. To actively make changes
+ to the seat configuration, terminate login sessions, or switch
+ session on a seat you need to utilize the D-Bus API of
+ systemd-logind, instead.</para>
+
+ <para>These functions synchronously access data in
+ <filename>/proc</filename>, <filename>/sys/fs/cgroup</filename>
+ and <filename>/run</filename>. All of these are virtual file
+ systems, hence the runtime cost of the accesses is relatively
+ cheap.</para>
+
+ <para>It is possible (and often a very good choice) to mix calls
+ to the synchronous interface of <filename>sd-login.h</filename>
+ with the asynchronous D-Bus interface of systemd-logind. However,
+ if this is done you need to think a bit about possible races since
+ the stream of events from D-Bus and from
+ <filename>sd-login.h</filename> interfaces such as the login
+ monitor are asynchronous and not ordered against each
+ other.</para>
+
+ <para>If the functions return string arrays, these are generally
+ <constant>NULL</constant> terminated and need to be freed by the
+ caller with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use, including the strings referenced therein.
+ Similarly, individual strings returned need to be freed, as
+ well.</para>
+
+ <para>As a special exception, instead of an empty string array
+ <constant>NULL</constant> may be returned, which should be treated
+ equivalent to an empty string array.</para>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_pid_get_session</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_uid_get_state</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_session_is_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_seat_get_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_login_monitor_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information about the functions
+ implemented.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_pid_get_session</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_uid_get_state</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_session_is_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_seat_get_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_login_monitor_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd-login/Makefile b/src/libsystemd/sd-login/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/libsystemd/sd-login/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-netlink/Makefile b/src/libsystemd/sd-netlink/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-netlink/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-network/Makefile b/src/libsystemd/sd-network/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/libsystemd/sd-network/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-path/Makefile b/src/libsystemd/sd-path/Makefile
deleted file mode 120000
index d0b0e8e008..0000000000
--- a/src/libsystemd/sd-path/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-path/sd-path.c b/src/libsystemd/sd-path/sd-path.c
deleted file mode 100644
index b7aec1f20a..0000000000
--- a/src/libsystemd/sd-path/sd-path.c
+++ /dev/null
@@ -1,638 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "sd-path.h"
-
-#include "alloc-util.h"
-#include "architecture.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "missing.h"
-#include "path-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "user-util.h"
-#include "util.h"
-
-static int from_environment(const char *envname, const char *fallback, const char **ret) {
- assert(ret);
-
- if (envname) {
- const char *e;
-
- e = secure_getenv(envname);
- if (e && path_is_absolute(e)) {
- *ret = e;
- return 0;
- }
- }
-
- if (fallback) {
- *ret = fallback;
- return 0;
- }
-
- return -ENXIO;
-}
-
-static int from_home_dir(const char *envname, const char *suffix, char **buffer, const char **ret) {
- _cleanup_free_ char *h = NULL;
- char *cc = NULL;
- int r;
-
- assert(suffix);
- assert(buffer);
- assert(ret);
-
- if (envname) {
- const char *e = NULL;
-
- e = secure_getenv(envname);
- if (e && path_is_absolute(e)) {
- *ret = e;
- return 0;
- }
- }
-
- r = get_home_dir(&h);
- if (r < 0)
- return r;
-
- if (endswith(h, "/"))
- cc = strappend(h, suffix);
- else
- cc = strjoin(h, "/", suffix, NULL);
- if (!cc)
- return -ENOMEM;
-
- *buffer = cc;
- *ret = cc;
- return 0;
-}
-
-static int from_user_dir(const char *field, char **buffer, const char **ret) {
- _cleanup_fclose_ FILE *f = NULL;
- _cleanup_free_ char *b = NULL;
- _cleanup_free_ const char *fn = NULL;
- const char *c = NULL;
- char line[LINE_MAX];
- size_t n;
- int r;
-
- assert(field);
- assert(buffer);
- assert(ret);
-
- r = from_home_dir("XDG_CONFIG_HOME", ".config", &b, &c);
- if (r < 0)
- return r;
-
- fn = strappend(c, "/user-dirs.dirs");
- if (!fn)
- return -ENOMEM;
-
- f = fopen(fn, "re");
- if (!f) {
- if (errno == ENOENT)
- goto fallback;
-
- return -errno;
- }
-
- /* This is an awful parse, but it follows closely what
- * xdg-user-dirs does upstream */
-
- n = strlen(field);
- FOREACH_LINE(line, f, return -errno) {
- char *l, *p, *e;
-
- l = strstrip(line);
-
- if (!strneq(l, field, n))
- continue;
-
- p = l + n;
- p += strspn(p, WHITESPACE);
-
- if (*p != '=')
- continue;
- p++;
-
- p += strspn(p, WHITESPACE);
-
- if (*p != '"')
- continue;
- p++;
-
- e = strrchr(p, '"');
- if (!e)
- continue;
- *e = 0;
-
- /* Three syntaxes permitted: relative to $HOME, $HOME itself, and absolute path */
- if (startswith(p, "$HOME/")) {
- _cleanup_free_ char *h = NULL;
- char *cc;
-
- r = get_home_dir(&h);
- if (r < 0)
- return r;
-
- cc = strappend(h, p+5);
- if (!cc)
- return -ENOMEM;
-
- *buffer = cc;
- *ret = cc;
- return 0;
- } else if (streq(p, "$HOME")) {
-
- r = get_home_dir(buffer);
- if (r < 0)
- return r;
-
- *ret = *buffer;
- return 0;
- } else if (path_is_absolute(p)) {
- char *copy;
-
- copy = strdup(p);
- if (!copy)
- return -ENOMEM;
-
- *buffer = copy;
- *ret = copy;
- return 0;
- }
- }
-
-fallback:
- /* The desktop directory defaults to $HOME/Desktop, the others to $HOME */
- if (streq(field, "XDG_DESKTOP_DIR")) {
- _cleanup_free_ char *h = NULL;
- char *cc;
-
- r = get_home_dir(&h);
- if (r < 0)
- return r;
-
- cc = strappend(h, "/Desktop");
- if (!cc)
- return -ENOMEM;
-
- *buffer = cc;
- *ret = cc;
- } else {
-
- r = get_home_dir(buffer);
- if (r < 0)
- return r;
-
- *ret = *buffer;
- }
-
- return 0;
-}
-
-static int get_path(uint64_t type, char **buffer, const char **ret) {
- int r;
-
- assert(buffer);
- assert(ret);
-
- switch (type) {
-
- case SD_PATH_TEMPORARY:
- return from_environment("TMPDIR", "/tmp", ret);
-
- case SD_PATH_TEMPORARY_LARGE:
- return from_environment("TMPDIR", "/var/tmp", ret);
-
- case SD_PATH_SYSTEM_BINARIES:
- *ret = "/usr/bin";
- return 0;
-
- case SD_PATH_SYSTEM_INCLUDE:
- *ret = "/usr/include";
- return 0;
-
- case SD_PATH_SYSTEM_LIBRARY_PRIVATE:
- *ret = "/usr/lib";
- return 0;
-
- case SD_PATH_SYSTEM_LIBRARY_ARCH:
- *ret = LIBDIR;
- return 0;
-
- case SD_PATH_SYSTEM_SHARED:
- *ret = "/usr/share";
- return 0;
-
- case SD_PATH_SYSTEM_CONFIGURATION_FACTORY:
- *ret = "/usr/share/factory/etc";
- return 0;
-
- case SD_PATH_SYSTEM_STATE_FACTORY:
- *ret = "/usr/share/factory/var";
- return 0;
-
- case SD_PATH_SYSTEM_CONFIGURATION:
- *ret = "/etc";
- return 0;
-
- case SD_PATH_SYSTEM_RUNTIME:
- *ret = "/run";
- return 0;
-
- case SD_PATH_SYSTEM_RUNTIME_LOGS:
- *ret = "/run/log";
- return 0;
-
- case SD_PATH_SYSTEM_STATE_PRIVATE:
- *ret = "/var/lib";
- return 0;
-
- case SD_PATH_SYSTEM_STATE_LOGS:
- *ret = "/var/log";
- return 0;
-
- case SD_PATH_SYSTEM_STATE_CACHE:
- *ret = "/var/cache";
- return 0;
-
- case SD_PATH_SYSTEM_STATE_SPOOL:
- *ret = "/var/spool";
- return 0;
-
- case SD_PATH_USER_BINARIES:
- return from_home_dir(NULL, ".local/bin", buffer, ret);
-
- case SD_PATH_USER_LIBRARY_PRIVATE:
- return from_home_dir(NULL, ".local/lib", buffer, ret);
-
- case SD_PATH_USER_LIBRARY_ARCH:
- return from_home_dir(NULL, ".local/lib/" LIB_ARCH_TUPLE, buffer, ret);
-
- case SD_PATH_USER_SHARED:
- return from_home_dir("XDG_DATA_HOME", ".local/share", buffer, ret);
-
- case SD_PATH_USER_CONFIGURATION:
- return from_home_dir("XDG_CONFIG_HOME", ".config", buffer, ret);
-
- case SD_PATH_USER_RUNTIME:
- return from_environment("XDG_RUNTIME_DIR", NULL, ret);
-
- case SD_PATH_USER_STATE_CACHE:
- return from_home_dir("XDG_CACHE_HOME", ".cache", buffer, ret);
-
- case SD_PATH_USER:
- r = get_home_dir(buffer);
- if (r < 0)
- return r;
-
- *ret = *buffer;
- return 0;
-
- case SD_PATH_USER_DOCUMENTS:
- return from_user_dir("XDG_DOCUMENTS_DIR", buffer, ret);
-
- case SD_PATH_USER_MUSIC:
- return from_user_dir("XDG_MUSIC_DIR", buffer, ret);
-
- case SD_PATH_USER_PICTURES:
- return from_user_dir("XDG_PICTURES_DIR", buffer, ret);
-
- case SD_PATH_USER_VIDEOS:
- return from_user_dir("XDG_VIDEOS_DIR", buffer, ret);
-
- case SD_PATH_USER_DOWNLOAD:
- return from_user_dir("XDG_DOWNLOAD_DIR", buffer, ret);
-
- case SD_PATH_USER_PUBLIC:
- return from_user_dir("XDG_PUBLICSHARE_DIR", buffer, ret);
-
- case SD_PATH_USER_TEMPLATES:
- return from_user_dir("XDG_TEMPLATES_DIR", buffer, ret);
-
- case SD_PATH_USER_DESKTOP:
- return from_user_dir("XDG_DESKTOP_DIR", buffer, ret);
- }
-
- return -EOPNOTSUPP;
-}
-
-_public_ int sd_path_home(uint64_t type, const char *suffix, char **path) {
- char *buffer = NULL, *cc;
- const char *ret;
- int r;
-
- assert_return(path, -EINVAL);
-
- if (IN_SET(type,
- SD_PATH_SEARCH_BINARIES,
- SD_PATH_SEARCH_LIBRARY_PRIVATE,
- SD_PATH_SEARCH_LIBRARY_ARCH,
- SD_PATH_SEARCH_SHARED,
- SD_PATH_SEARCH_CONFIGURATION_FACTORY,
- SD_PATH_SEARCH_STATE_FACTORY,
- SD_PATH_SEARCH_CONFIGURATION)) {
-
- _cleanup_strv_free_ char **l = NULL;
-
- r = sd_path_search(type, suffix, &l);
- if (r < 0)
- return r;
-
- buffer = strv_join(l, ":");
- if (!buffer)
- return -ENOMEM;
-
- *path = buffer;
- return 0;
- }
-
- r = get_path(type, &buffer, &ret);
- if (r < 0)
- return r;
-
- if (!suffix) {
- if (!buffer) {
- buffer = strdup(ret);
- if (!buffer)
- return -ENOMEM;
- }
-
- *path = buffer;
- return 0;
- }
-
- suffix += strspn(suffix, "/");
-
- if (endswith(ret, "/"))
- cc = strappend(ret, suffix);
- else
- cc = strjoin(ret, "/", suffix, NULL);
-
- free(buffer);
-
- if (!cc)
- return -ENOMEM;
-
- *path = cc;
- return 0;
-}
-
-static int search_from_environment(
- char ***list,
- const char *env_home,
- const char *home_suffix,
- const char *env_search,
- bool env_search_sufficient,
- const char *first, ...) {
-
- const char *e;
- char *h = NULL;
- char **l = NULL;
- int r;
-
- assert(list);
-
- if (env_search) {
- e = secure_getenv(env_search);
- if (e) {
- l = strv_split(e, ":");
- if (!l)
- return -ENOMEM;
-
- if (env_search_sufficient) {
- *list = l;
- return 0;
- }
- }
- }
-
- if (!l && first) {
- va_list ap;
-
- va_start(ap, first);
- l = strv_new_ap(first, ap);
- va_end(ap);
-
- if (!l)
- return -ENOMEM;
- }
-
- if (env_home) {
- e = secure_getenv(env_home);
- if (e && path_is_absolute(e)) {
- h = strdup(e);
- if (!h) {
- strv_free(l);
- return -ENOMEM;
- }
- }
- }
-
- if (!h && home_suffix) {
- e = secure_getenv("HOME");
- if (e && path_is_absolute(e)) {
- if (endswith(e, "/"))
- h = strappend(e, home_suffix);
- else
- h = strjoin(e, "/", home_suffix, NULL);
-
- if (!h) {
- strv_free(l);
- return -ENOMEM;
- }
- }
- }
-
- if (h) {
- r = strv_consume_prepend(&l, h);
- if (r < 0) {
- strv_free(l);
- return -ENOMEM;
- }
- }
-
- *list = l;
- return 0;
-}
-
-static int get_search(uint64_t type, char ***list) {
-
- assert(list);
-
- switch(type) {
-
- case SD_PATH_SEARCH_BINARIES:
- return search_from_environment(list,
- NULL,
- ".local/bin",
- "PATH",
- true,
- "/usr/local/sbin",
- "/usr/local/bin",
- "/usr/sbin",
- "/usr/bin",
-#ifdef HAVE_SPLIT_USR
- "/sbin",
- "/bin",
-#endif
- NULL);
-
- case SD_PATH_SEARCH_LIBRARY_PRIVATE:
- return search_from_environment(list,
- NULL,
- ".local/lib",
- NULL,
- false,
- "/usr/local/lib",
- "/usr/lib",
-#ifdef HAVE_SPLIT_USR
- "/lib",
-#endif
- NULL);
-
- case SD_PATH_SEARCH_LIBRARY_ARCH:
- return search_from_environment(list,
- NULL,
- ".local/lib/" LIB_ARCH_TUPLE,
- "LD_LIBRARY_PATH",
- true,
- LIBDIR,
-#ifdef HAVE_SPLIT_USR
- ROOTLIBDIR,
-#endif
- NULL);
-
- case SD_PATH_SEARCH_SHARED:
- return search_from_environment(list,
- "XDG_DATA_HOME",
- ".local/share",
- "XDG_DATA_DIRS",
- false,
- "/usr/local/share",
- "/usr/share",
- NULL);
-
- case SD_PATH_SEARCH_CONFIGURATION_FACTORY:
- return search_from_environment(list,
- NULL,
- NULL,
- NULL,
- false,
- "/usr/local/share/factory/etc",
- "/usr/share/factory/etc",
- NULL);
-
- case SD_PATH_SEARCH_STATE_FACTORY:
- return search_from_environment(list,
- NULL,
- NULL,
- NULL,
- false,
- "/usr/local/share/factory/var",
- "/usr/share/factory/var",
- NULL);
-
- case SD_PATH_SEARCH_CONFIGURATION:
- return search_from_environment(list,
- "XDG_CONFIG_HOME",
- ".config",
- "XDG_CONFIG_DIRS",
- false,
- "/etc",
- NULL);
- }
-
- return -EOPNOTSUPP;
-}
-
-_public_ int sd_path_search(uint64_t type, const char *suffix, char ***paths) {
- char **l, **i, **j, **n;
- int r;
-
- assert_return(paths, -EINVAL);
-
- if (!IN_SET(type,
- SD_PATH_SEARCH_BINARIES,
- SD_PATH_SEARCH_LIBRARY_PRIVATE,
- SD_PATH_SEARCH_LIBRARY_ARCH,
- SD_PATH_SEARCH_SHARED,
- SD_PATH_SEARCH_CONFIGURATION_FACTORY,
- SD_PATH_SEARCH_STATE_FACTORY,
- SD_PATH_SEARCH_CONFIGURATION)) {
-
- char *p;
-
- r = sd_path_home(type, suffix, &p);
- if (r < 0)
- return r;
-
- l = new(char*, 2);
- if (!l) {
- free(p);
- return -ENOMEM;
- }
-
- l[0] = p;
- l[1] = NULL;
-
- *paths = l;
- return 0;
- }
-
- r = get_search(type, &l);
- if (r < 0)
- return r;
-
- if (!suffix) {
- *paths = l;
- return 0;
- }
-
- n = new(char*, strv_length(l)+1);
- if (!n) {
- strv_free(l);
- return -ENOMEM;
- }
-
- j = n;
- STRV_FOREACH(i, l) {
-
- if (endswith(*i, "/"))
- *j = strappend(*i, suffix);
- else
- *j = strjoin(*i, "/", suffix, NULL);
-
- if (!*j) {
- strv_free(l);
- strv_free(n);
- return -ENOMEM;
- }
-
- j++;
- }
-
- *j = NULL;
- *paths = n;
- return 0;
-}
diff --git a/src/libsystemd/sd-resolve/Makefile b/src/libsystemd/sd-resolve/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-resolve/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd-utf8/Makefile b/src/libsystemd/sd-utf8/Makefile
deleted file mode 120000
index 94aaae2c4d..0000000000
--- a/src/libsystemd/sd-utf8/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../../Makefile \ No newline at end of file
diff --git a/src/libsystemd/sd_booted.xml b/src/libsystemd/sd_booted.xml
new file mode 100644
index 0000000000..4dd674b8ea
--- /dev/null
+++ b/src/libsystemd/sd_booted.xml
@@ -0,0 +1,95 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_booted"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_booted</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_booted</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_booted</refname>
+ <refpurpose>Test whether the system is running the systemd init system</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-daemon.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_booted</function></funcdef>
+ <paramdef>void</paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+ <para><function>sd_booted()</function> checks whether the system
+ was booted up using the systemd init system.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On failure, this call returns a negative errno-style error
+ code. If the system was booted up with systemd as init system,
+ this call returns a positive return value, zero otherwise.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
+
+ <para>Internally, this function checks whether the directory
+ <filename>/run/systemd/system/</filename> exists. A simple check
+ like this can also be implemented trivially in shell or any other
+ language.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_creds_get_pid.xml b/src/libsystemd/sd_bus_creds_get_pid.xml
new file mode 100644
index 0000000000..4c05835568
--- /dev/null
+++ b/src/libsystemd/sd_bus_creds_get_pid.xml
@@ -0,0 +1,566 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_creds_get_pid">
+
+ <refentryinfo>
+ <title>sd_bus_creds_get_pid</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_creds_get_pid</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_creds_get_pid</refname>
+ <refname>sd_bus_creds_get_ppid</refname>
+ <refname>sd_bus_creds_get_tid</refname>
+ <refname>sd_bus_creds_get_uid</refname>
+ <refname>sd_bus_creds_get_euid</refname>
+ <refname>sd_bus_creds_get_suid</refname>
+ <refname>sd_bus_creds_get_fsuid</refname>
+ <refname>sd_bus_creds_get_gid</refname>
+ <refname>sd_bus_creds_get_egid</refname>
+ <refname>sd_bus_creds_get_sgid</refname>
+ <refname>sd_bus_creds_get_fsgid</refname>
+ <refname>sd_bus_creds_get_supplementary_gids</refname>
+ <refname>sd_bus_creds_get_comm</refname>
+ <refname>sd_bus_creds_get_tid_comm</refname>
+ <refname>sd_bus_creds_get_exe</refname>
+ <refname>sd_bus_creds_get_cmdline</refname>
+ <refname>sd_bus_creds_get_cgroup</refname>
+ <refname>sd_bus_creds_get_unit</refname>
+ <refname>sd_bus_creds_get_slice</refname>
+ <refname>sd_bus_creds_get_user_unit</refname>
+ <refname>sd_bus_creds_get_user_slice</refname>
+ <refname>sd_bus_creds_get_session</refname>
+ <refname>sd_bus_creds_get_owner_uid</refname>
+ <refname>sd_bus_creds_has_effective_cap</refname>
+ <refname>sd_bus_creds_has_permitted_cap</refname>
+ <refname>sd_bus_creds_has_inheritable_cap</refname>
+ <refname>sd_bus_creds_has_bounding_cap</refname>
+ <refname>sd_bus_creds_get_selinux_context</refname>
+ <refname>sd_bus_creds_get_audit_session_id</refname>
+ <refname>sd_bus_creds_get_audit_login_uid</refname>
+ <refname>sd_bus_creds_get_tty</refname>
+ <refname>sd_bus_creds_get_unique_name</refname>
+ <refname>sd_bus_creds_get_well_known_names</refname>
+ <refname>sd_bus_creds_get_description</refname>
+
+ <refpurpose>Retrieve fields from a credentials object</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_pid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>pid_t *<parameter>pid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_ppid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>pid_t *<parameter>ppid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_tid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>pid_t *<parameter>tid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_uid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_euid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_suid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_fsuid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_gid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>gid_t *<parameter>gid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_egid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>gid_t *<parameter>gid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_sgid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>gid_t *<parameter>gid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_fsgid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>gid_t *<parameter>gid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_supplementary_gids</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const gid_t **<parameter>gids</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_comm</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>comm</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_tid_comm</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>comm</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_exe</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>exe</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_cmdline</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>char ***<parameter>cmdline</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_cgroup</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>cgroup</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_unit</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>unit</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_slice</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_user_unit</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>unit</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_user_slice</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_session</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_owner_uid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_has_effective_cap</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>int <parameter>capability</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_has_permitted_cap</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>int <parameter>capability</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_has_inheritable_cap</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>int <parameter>capability</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_has_bounding_cap</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>int <parameter>capability</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_selinux_context</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>context</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_audit_session_id</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uint32_t *<parameter>sessionid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_audit_login_uid</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>uid_t *<parameter>loginuid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_tty</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>tty</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_unique_name</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>name</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_well_known_names</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>char ***<parameter>name</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_get_description</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ <paramdef>const char **<parameter>name</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>These functions return credential information from an
+ <parameter>sd_bus_creds</parameter> object. Credential objects may
+ be created with
+ <citerefentry><refentrytitle>sd_bus_creds_new_from_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ in which case they describe the credentials of the process
+ identified by the specified PID, with
+ <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ in which case they describe the credentials of a bus peer
+ identified by the specified bus name, with
+ <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ in which case they describe the credentials of the creator of a
+ bus, or with
+ <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ in which case they describe the credentials of the sender of the
+ message.</para>
+
+ <para>Not all credential fields are part of every
+ <literal>sd_bus_creds</literal> object. Use
+ <citerefentry><refentrytitle>sd_bus_creds_get_mask</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ to determine the mask of fields available.</para>
+
+ <para><function>sd_bus_creds_get_pid()</function> will retrieve
+ the PID (process identifier). Similarly,
+ <function>sd_bus_creds_get_ppid()</function> will retrieve the
+ parent PID. Note that PID 1 has no parent process, in which case
+ -ENXIO is returned.</para>
+
+ <para><function>sd_bus_creds_get_tid()</function> will retrieve the
+ TID (thread identifier).</para>
+
+ <para><function>sd_bus_creds_get_uid()</function> will retrieve
+ the numeric UID (user identifier). Similarly,
+ <function>sd_bus_creds_get_euid()</function> returns the effective
+ UID, <function>sd_bus_creds_get_suid()</function> the saved UID
+ and <function>sd_bus_creds_get_fsuid()</function> the file system
+ UID.</para>
+
+ <para><function>sd_bus_creds_get_gid()</function> will retrieve the
+ numeric GID (group identifier). Similarly,
+ <function>sd_bus_creds_get_egid()</function> returns the effective
+ GID, <function>sd_bus_creds_get_sgid()</function> the saved GID
+ and <function>sd_bus_creds_get_fsgid()</function> the file system
+ GID.</para>
+
+ <para><function>sd_bus_creds_get_supplementary_gids()</function>
+ will retrieve the supplementary GIDs list.</para>
+
+ <para><function>sd_bus_creds_get_comm()</function> will retrieve the
+ comm field (truncated name of the executable, as stored in
+ <filename>/proc/<replaceable>pid</replaceable>/comm</filename>).
+ </para>
+
+ <para><function>sd_bus_creds_get_tid_comm()</function> will retrieve
+ the comm field of the thread (as stored in
+ <filename>/proc/<replaceable>pid</replaceable>/task/<replaceable>tid</replaceable>/comm</filename>).
+ </para>
+
+ <para><function>sd_bus_creds_get_exe()</function> will retrieve
+ the path to the program executable (as stored in the
+ <filename>/proc/<replaceable>pid</replaceable>/exe</filename>
+ link, but with the <literal> (deleted)</literal> suffix removed). Note
+ that kernel threads do not have an executable path, in which case
+ -ENXIO is returned.</para>
+
+ <para><function>sd_bus_creds_get_cmdline()</function> will
+ retrieve an array of command line arguments (as stored in
+ <filename>/proc/<replaceable>pid</replaceable>/cmdline</filename>). Note
+ that kernel threads do not have a command line, in which case
+ -ENXIO is returned.</para>
+
+ <para><function>sd_bus_creds_get_cgroup()</function> will retrieve
+ the cgroup path. See <ulink
+ url="https://www.kernel.org/doc/Documentation/cgroups/cgroups.txt">cgroups.txt</ulink>.
+ </para>
+
+ <para><function>sd_bus_creds_get_unit()</function> will retrieve
+ the systemd unit name (in the system instance of systemd) that the
+ process is a part of. See
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. For
+ processes that are not part of a unit, returns -ENXIO.
+ </para>
+
+ <para><function>sd_bus_creds_get_user_unit()</function> will
+ retrieve the systemd unit name (in the user instance of systemd)
+ that the process is a part of. See
+ <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. For
+ processes that are not part of a user unit, returns -ENXIO.
+ </para>
+
+ <para><function>sd_bus_creds_get_slice()</function> will retrieve
+ the systemd slice (a unit in the system instance of systemd) that
+ the process is a part of. See
+ <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>. Similarly,
+ <function>sd_bus_creds_get_user_slice()</function> retrieves the
+ systemd slice of the process, in the user instance of systemd.
+ </para>
+
+ <para><function>sd_bus_creds_get_session()</function> will
+ retrieve the identifier of the login session that the process is
+ a part of. See
+ <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. For
+ processes that are not part of a session, returns -ENXIO.
+ </para>
+
+ <para><function>sd_bus_creds_get_owner_uid()</function> will
+ retrieve the numeric UID (user identifier) of the user who owns
+ the login session that the process is a part of. See
+ <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
+ For processes that are not part of a session, returns -ENXIO.
+ </para>
+
+ <para><function>sd_bus_creds_has_effective_cap()</function> will check whether the capability specified by
+ <parameter>capability</parameter> was set in the effective capabilities mask. A positive return value means that it
+ was set, zero means that it was not set, and a negative return value indicates an error. See <citerefentry
+ project='man-pages'><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry> and the
+ <varname>AmbientCapabilities=</varname> and <varname>CapabilityBoundingSet=</varname> settings in
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ </para>
+
+ <para><function>sd_bus_creds_has_permitted_cap()</function> is
+ similar to <function>sd_bus_creds_has_effective_cap()</function>,
+ but will check the permitted capabilities mask.</para>
+
+ <para><function>sd_bus_creds_has_inheritable_cap()</function> is
+ similar to <function>sd_bus_creds_has_effective_cap()</function>,
+ but will check the inheritable capabilities mask.</para>
+
+ <para><function>sd_bus_creds_has_bounding_cap()</function> is
+ similar to <function>sd_bus_creds_has_effective_cap()</function>,
+ but will check the bounding capabilities mask.</para>
+
+ <para><function>sd_bus_creds_get_selinux_context()</function> will
+ retrieve the SELinux security context (label) of the process.</para>
+
+ <para><function>sd_bus_creds_get_audit_session_id()</function>
+ will retrieve the audit session identifier of the process. Returns
+ -ENXIO for processes that are not part of an audit session.</para>
+
+ <para><function>sd_bus_creds_get_audit_login_uid()</function> will
+ retrieve the audit user login identifier (the identifier of the
+ user who is "responsible" for the session). Returns -ENXIO for
+ processes that are not part of an audit session.</para>
+
+ <para><function>sd_bus_creds_get_tty()</function> will retrieve
+ the controlling TTY, without the prefixing "/dev/". Returns -ENXIO
+ for processes that have no controlling TTY.</para>
+
+ <para><function>sd_bus_creds_get_unique_name()</function> will
+ retrieve the D-Bus unique name. See <ulink
+ url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus">The
+ D-Bus specification</ulink>.</para>
+
+ <para><function>sd_bus_creds_get_well_known_names()</function> will
+ retrieve the set of D-Bus well-known names. See <ulink
+ url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus">The
+ D-Bus specification</ulink>.</para>
+
+ <para><function>sd_bus_creds_get_description()</function> will
+ retrieve a descriptive name of the bus connection of the
+ peer. This name is useful to discern multiple bus connections by
+ the same peer, and may be altered by the peer with the
+ <citerefentry><refentrytitle>sd_bus_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call.</para>
+
+ <para>All functions that take a <parameter>const
+ char**</parameter> parameter will store the answer there as an
+ address of a NUL-terminated string. It will be valid as long as
+ <parameter>c</parameter> remains valid, and should not be freed or
+ modified by the caller.</para>
+
+ <para>All functions that take a <parameter>char***</parameter>
+ parameter will store the answer there as an address of an array
+ of strings. Each individual string is NUL-terminated, and the
+ array is NULL-terminated as a whole. It will be valid as long as
+ <parameter>c</parameter> remains valid, and should not be freed or
+ modified by the caller.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, these calls return a negative errno-style error code.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>The given field is not available in the
+ credentials object <parameter>c</parameter>.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>The given field is not specified for the described
+ process or peer. This will be returned by
+ <function>sd_bus_get_unit()</function>,
+ <function>sd_bus_get_slice()</function>,
+ <function>sd_bus_get_user_unit()</function>,
+ <function>sd_bus_get_user_slice()</function>,
+ <function>sd_bus_get_session()</function>, and
+ <function>sd_bus_get_owner_uid()</function> if the process is
+ not part of a systemd system unit, systemd user unit, systemd
+ slice, or logind session. It will also be returned by
+ <function>sd_bus_creds_get_exe()</function> and
+ <function>sd_bus_creds_get_cmdline()</function> for kernel
+ threads (since these are not started from an executable binary,
+ nor have a command line), and by
+ <function>sd_bus_creds_get_audit_session_id()</function> and
+ <function>sd_bus_creds_get_audit_login_uid()</function> when
+ the process is not part of an audit session, and
+ <function>sd_bus_creds_get_tty()</function> if the process has
+ no controlling TTY.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>Specified pointer parameter is <constant>NULL</constant>.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_creds_get_pid()</function> and the other
+ functions described here are available as a shared library, which
+ can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_creds_new_from_pid</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>fork</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>execve</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>credentials</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>proc</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_creds_new_from_pid.xml b/src/libsystemd/sd_bus_creds_new_from_pid.xml
new file mode 100644
index 0000000000..082f7b67db
--- /dev/null
+++ b/src/libsystemd/sd_bus_creds_new_from_pid.xml
@@ -0,0 +1,353 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_creds_new_from_pid">
+
+ <refentryinfo>
+ <title>sd_bus_creds_new_from_pid</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_creds_new_from_pid</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_creds_new_from_pid</refname>
+ <refname>sd_bus_creds_get_mask</refname>
+ <refname>sd_bus_creds_get_augmented_mask</refname>
+ <refname>sd_bus_creds_ref</refname>
+ <refname>sd_bus_creds_unref</refname>
+ <refname>sd_bus_creds_unrefp</refname>
+
+ <refpurpose>Retrieve credentials object for the specified PID</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_creds_new_from_pid</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>uint64_t <parameter>creds_mask</parameter></paramdef>
+ <paramdef>sd_bus_creds **<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>uint64_t <function>sd_bus_creds_get_mask</function></funcdef>
+ <paramdef>const sd_bus_creds *<parameter>c</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>uint64_t <function>sd_bus_creds_get_augmented_mask</function></funcdef>
+ <paramdef>const sd_bus_creds *<parameter>c</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_bus_creds *<function>sd_bus_creds_ref</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_bus_creds *<function>sd_bus_creds_unref</function></funcdef>
+ <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_bus_creds_unrefp</function></funcdef>
+ <paramdef>sd_bus_creds **<parameter>c</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+
+ <para>
+ <constant>SD_BUS_CREDS_PID</constant>,
+ <constant>SD_BUS_CREDS_PPID</constant>,
+ <constant>SD_BUS_CREDS_TID</constant>,
+ <constant>SD_BUS_CREDS_UID</constant>,
+ <constant>SD_BUS_CREDS_EUID</constant>,
+ <constant>SD_BUS_CREDS_SUID</constant>,
+ <constant>SD_BUS_CREDS_FSUID</constant>,
+ <constant>SD_BUS_CREDS_GID</constant>,
+ <constant>SD_BUS_CREDS_EGID</constant>,
+ <constant>SD_BUS_CREDS_SGID</constant>,
+ <constant>SD_BUS_CREDS_FSGID</constant>,
+ <constant>SD_BUS_CREDS_SUPPLEMENTARY_GIDS</constant>,
+ <constant>SD_BUS_CREDS_COMM</constant>,
+ <constant>SD_BUS_CREDS_TID_COMM</constant>,
+ <constant>SD_BUS_CREDS_EXE</constant>,
+ <constant>SD_BUS_CREDS_CMDLINE</constant>,
+ <constant>SD_BUS_CREDS_CGROUP</constant>,
+ <constant>SD_BUS_CREDS_UNIT</constant>,
+ <constant>SD_BUS_CREDS_SLICE</constant>,
+ <constant>SD_BUS_CREDS_USER_UNIT</constant>,
+ <constant>SD_BUS_CREDS_USER_SLICE</constant>,
+ <constant>SD_BUS_CREDS_SESSION</constant>,
+ <constant>SD_BUS_CREDS_OWNER_UID</constant>,
+ <constant>SD_BUS_CREDS_EFFECTIVE_CAPS</constant>,
+ <constant>SD_BUS_CREDS_PERMITTED_CAPS</constant>,
+ <constant>SD_BUS_CREDS_INHERITABLE_CAPS</constant>,
+ <constant>SD_BUS_CREDS_BOUNDING_CAPS</constant>,
+ <constant>SD_BUS_CREDS_SELINUX_CONTEXT</constant>,
+ <constant>SD_BUS_CREDS_AUDIT_SESSION_ID</constant>,
+ <constant>SD_BUS_CREDS_AUDIT_LOGIN_UID</constant>,
+ <constant>SD_BUS_CREDS_TTY</constant>,
+ <constant>SD_BUS_CREDS_UNIQUE_NAME</constant>,
+ <constant>SD_BUS_CREDS_WELL_KNOWN_NAMES</constant>,
+ <constant>SD_BUS_CREDS_DESCRIPTION</constant>,
+ <constant>SD_BUS_CREDS_AUGMENT</constant>,
+ <constant>_SD_BUS_CREDS_ALL</constant>
+ </para>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_creds_new_from_pid()</function> creates a
+ new credentials object and fills it with information about the
+ process <parameter>pid</parameter>. The pointer to this object
+ will be stored in the <parameter>ret</parameter> pointer. Note that
+ credential objects may also be created and retrieved via
+ <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>The information that will be stored is determined by
+ <parameter>creds_mask</parameter>. It may contain a subset of ORed
+ constants <constant>SD_BUS_CREDS_PID</constant>,
+ <constant>SD_BUS_CREDS_PPID</constant>,
+ <constant>SD_BUS_CREDS_TID</constant>,
+ <constant>SD_BUS_CREDS_UID</constant>,
+ <constant>SD_BUS_CREDS_EUID</constant>,
+ <constant>SD_BUS_CREDS_SUID</constant>,
+ <constant>SD_BUS_CREDS_FSUID</constant>,
+ <constant>SD_BUS_CREDS_GID</constant>,
+ <constant>SD_BUS_CREDS_EGID</constant>,
+ <constant>SD_BUS_CREDS_SGID</constant>,
+ <constant>SD_BUS_CREDS_FSGID</constant>,
+ <constant>SD_BUS_CREDS_SUPPLEMENTARY_GIDS</constant>,
+ <constant>SD_BUS_CREDS_COMM</constant>,
+ <constant>SD_BUS_CREDS_TID_COMM</constant>,
+ <constant>SD_BUS_CREDS_EXE</constant>,
+ <constant>SD_BUS_CREDS_CMDLINE</constant>,
+ <constant>SD_BUS_CREDS_CGROUP</constant>,
+ <constant>SD_BUS_CREDS_UNIT</constant>,
+ <constant>SD_BUS_CREDS_SLICE</constant>,
+ <constant>SD_BUS_CREDS_USER_UNIT</constant>,
+ <constant>SD_BUS_CREDS_USER_SLICE</constant>,
+ <constant>SD_BUS_CREDS_SESSION</constant>,
+ <constant>SD_BUS_CREDS_OWNER_UID</constant>,
+ <constant>SD_BUS_CREDS_EFFECTIVE_CAPS</constant>,
+ <constant>SD_BUS_CREDS_PERMITTED_CAPS</constant>,
+ <constant>SD_BUS_CREDS_INHERITABLE_CAPS</constant>,
+ <constant>SD_BUS_CREDS_BOUNDING_CAPS</constant>,
+ <constant>SD_BUS_CREDS_SELINUX_CONTEXT</constant>,
+ <constant>SD_BUS_CREDS_AUDIT_SESSION_ID</constant>,
+ <constant>SD_BUS_CREDS_AUDIT_LOGIN_UID</constant>,
+ <constant>SD_BUS_CREDS_TTY</constant>,
+ <constant>SD_BUS_CREDS_UNIQUE_NAME</constant>,
+ <constant>SD_BUS_CREDS_WELL_KNOWN_NAMES</constant>, and
+ <constant>SD_BUS_CREDS_DESCRIPTION</constant>. Use the special
+ value <constant>_SD_BUS_CREDS_ALL</constant> to request all
+ supported fields. The <constant>SD_BUS_CREDS_AUGMENT</constant>
+ constant may not be ORed into the mask for invocations of
+ <function>sd_bus_creds_new_from_pid()</function>.</para>
+
+ <para>Fields can be retrieved from the credentials object using
+ <citerefentry><refentrytitle>sd_bus_creds_get_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and other functions which correspond directly to the constants
+ listed above.</para>
+
+ <para>A mask of fields which were actually successfully retrieved
+ can be retrieved with
+ <function>sd_bus_creds_get_mask()</function>. If the credentials
+ object was created with
+ <function>sd_bus_creds_new_from_pid()</function>, this will be a
+ subset of fields requested in <parameter>creds_mask</parameter>.
+ </para>
+
+ <para>Similar to <function>sd_bus_creds_get_mask()</function>, the
+ function <function>sd_bus_creds_get_augmented_mask()</function>
+ returns a bitmask of field constants. The mask indicates which
+ credential fields have been retrieved in a non-atomic fashion. For
+ credential objects created via
+ <function>sd_bus_creds_new_from_pid()</function>, this mask will be
+ identical to the mask returned by
+ <function>sd_bus_creds_get_mask()</function>. However, for
+ credential objects retrieved via
+ <function>sd_bus_get_name_creds()</function>, this mask will be set
+ for the credential fields that could not be determined atomically
+ at peer connection time, and which were later added by reading
+ augmenting credential data from
+ <filename>/proc</filename>. Similarly, for credential objects
+ retrieved via <function>sd_bus_get_owner_creds()</function>, the
+ mask is set for the fields that could not be determined atomically
+ at bus creation time, but have been augmented. Similarly, for
+ credential objects retrieved via
+ <function>sd_bus_message_get_creds()</function>, the mask is set
+ for the fields that could not be determined atomically at message
+ sending time, but have been augmented. The mask returned by
+ <function>sd_bus_creds_get_augmented_mask()</function> is always a
+ subset of (or identical to) the mask returned by
+ <function>sd_bus_creds_get_mask()</function> for the same
+ object. The latter call hence returns all credential fields
+ available in the credential object, the former then marks the
+ subset of those that have been augmented. Note that augmented
+ fields are unsuitable for authorization decisions, as they may be
+ retrieved at different times, thus being subject to races. Hence,
+ augmented fields should be used exclusively for informational
+ purposes.
+ </para>
+
+ <para><function>sd_bus_creds_ref()</function> creates a new
+ reference to the credentials object <parameter>c</parameter>. This
+ object will not be destroyed until
+ <function>sd_bus_creds_unref()</function> has been called as many
+ times plus once more. Once the reference count has dropped to zero,
+ <parameter>c</parameter> cannot be used anymore, so further
+ calls to <function>sd_bus_creds_ref(c)</function> or
+ <function>sd_bus_creds_unref(c)</function> are illegal.</para>
+
+ <para><function>sd_bus_creds_unref()</function> destroys a reference
+ to <parameter>c</parameter>.</para>
+
+ <para><function>sd_bus_creds_unrefp()</function> is similar to
+ <function>sd_bus_creds_unref()</function> but takes a pointer to a
+ pointer to an <type>sd_bus_creds</type> object. This call is useful in
+ conjunction with GCC's and LLVM's <ulink
+ url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up
+ Variable Attribute</ulink>. Note that this function is defined as
+ inline function.</para>
+
+ <para><function>sd_bus_creds_ref()</function>,
+ <function>sd_bus_creds_unref()</function> and
+ <function>sd_bus_creds_unrefp()</function> execute no operation if
+ the passed in bus credentials object is
+ <constant>NULL</constant>.</para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_bus_creds_new_from_pid()</function>
+ returns 0 or a positive integer. On failure, it returns a negative
+ errno-style error code.</para>
+
+ <para><function>sd_bus_creds_get_mask()</function> returns the
+ mask of successfully acquired fields.</para>
+
+ <para><function>sd_bus_creds_get_augmented_mask()</function>
+ returns the mask of fields that have been augmented from data in
+ <filename>/proc</filename>, and are thus not suitable for
+ authorization decisions.</para>
+
+ <para><function>sd_bus_creds_ref()</function> always returns the
+ argument.</para>
+
+ <para><function>sd_bus_creds_unref()</function> always returns
+ <constant>NULL</constant>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Reference ownership</title>
+
+ <para>Function <function>sd_bus_creds_new_from_pid()</function>
+ creates a new object and the caller owns the sole reference. When
+ not needed anymore, this reference should be destroyed with
+ <citerefentry><refentrytitle>sd_bus_creds_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ESRCH</constant></term>
+
+ <listitem><para>Specified <parameter>pid</parameter> could not
+ be found.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>Specified parameter is invalid
+ (<constant>NULL</constant> in case of output
+ parameters).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EOPNOTSUPP</constant></term>
+
+ <listitem><para>One of the requested fields is unknown to the local system.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_creds_new_from_pid()</function> and the
+ other calls described here are available as a shared library,
+ which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_creds_get_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_default.xml b/src/libsystemd/sd_bus_default.xml
new file mode 100644
index 0000000000..6d5a90de72
--- /dev/null
+++ b/src/libsystemd/sd_bus_default.xml
@@ -0,0 +1,312 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_default">
+
+ <refentryinfo>
+ <title>sd_bus_default</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_default</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_default</refname>
+ <refname>sd_bus_default_user</refname>
+ <refname>sd_bus_default_system</refname>
+
+ <refname>sd_bus_open</refname>
+ <refname>sd_bus_open_user</refname>
+ <refname>sd_bus_open_system</refname>
+ <refname>sd_bus_open_system_remote</refname>
+ <refname>sd_bus_open_system_machine</refname>
+
+ <refpurpose>Acquire a connection to a system or user bus</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_default</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_default_user</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_default_system</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_open</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_open_user</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_open_system</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_open_system_remote</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ <paramdef>const char *<parameter>host</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_open_system_machine</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ <paramdef>const char *<parameter>machine</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_default()</function> acquires a bus
+ connection object to the user bus when invoked in user context, or
+ to the system bus otherwise. The connection object is associated
+ with the calling thread. Each time the function is invoked from
+ the same thread, the same object is returned, but its reference
+ count is increased by one, as long as at least one reference is
+ kept. When the last reference to the connection is dropped (using
+ the
+ <citerefentry><refentrytitle>sd_bus_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call), the connection is terminated. Note that the connection is
+ not automatically terminated when the associated thread ends. It
+ is important to drop the last reference to the bus connection
+ explicitly before the thread ends, as otherwise, the connection will
+ leak. Also, queued but unread or unwritten messages keep the
+ bus referenced, see below.</para>
+
+ <para><function>sd_bus_default_user()</function> returns a user
+ bus connection object associated with the calling thread.
+ <function>sd_bus_default_system()</function> is similar, but
+ connects to the system bus. Note that
+ <function>sd_bus_default()</function> is identical to these two
+ calls, depending on the execution context.</para>
+
+ <para><function>sd_bus_open()</function> creates a new,
+ independent bus connection to the user bus when invoked in user
+ context, or the system bus
+ otherwise. <function>sd_bus_open_user()</function> is similar, but
+ connects only to the user bus.
+ <function>sd_bus_open_system()</function> does the same, but
+ connects to the system bus. In contrast to
+ <function>sd_bus_default()</function>,
+ <function>sd_bus_default_user()</function>, and
+ <function>sd_bus_default_system()</function>, these calls return
+ new, independent connection objects that are not associated with
+ the invoking thread and are not shared between multiple
+ invocations. It is recommended to share connections per thread to
+ efficiently make use the available resources. Thus, it is
+ recommended to use <function>sd_bus_default()</function>,
+ <function>sd_bus_default_user()</function> and
+ <function>sd_bus_default_system()</function> to connect to the
+ user or system buses.</para>
+
+ <para>If the <varname>$DBUS_SESSION_BUS_ADDRESS</varname> environment
+ variable is set
+ (cf. <citerefentry project='man-pages'><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>),
+ it will be used as the address of the user bus. This variable can
+ contain multiple addresses separated by <literal>;</literal>. If
+ this variable is not set, a suitable default for the default user
+ D-Bus instance will be used.</para>
+
+ <para>If the <varname>$DBUS_SYSTEM_BUS_ADDRESS</varname>
+ environment variable is set, it will be used as the address of the
+ system bus. This variable uses the same syntax as
+ <varname>$DBUS_SESSION_BUS_ADDRESS</varname>. If this variable is
+ not set, a suitable default for the default system D-Bus instance
+ will be used.</para>
+
+ <para><function>sd_bus_open_system_remote()</function> connects to
+ the system bus on the specified <parameter>host</parameter> using
+ <citerefentry
+ project='die-net'><refentrytitle>ssh</refentrytitle><manvolnum>1</manvolnum></citerefentry>. <parameter>host</parameter>
+ consists of an optional user name followed by the
+ <literal>@</literal> symbol, and the hostname.
+ </para>
+
+ <para><function>sd_bus_open_system_machine()</function> connects
+ to the system bus in the specified <parameter>machine</parameter>,
+ where <parameter>machine</parameter> is the name of a local
+ container. See
+ <citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ for more information about the "machine" concept. Note that
+ connections into local containers are only available to privileged
+ processes at this time.</para>
+
+ <para>These calls allocate a bus connection object and initiate
+ the connection to a well-known bus of some form. An alternative to
+ using these high-level calls is to create an unconnected bus
+ object with
+ <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and to connect it with
+ <citerefentry><refentrytitle>sd_bus_start</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Reference ownership</title>
+ <para>The functions <function>sd_bus_open()</function>,
+ <function>sd_bus_open_user()</function>,
+ <function>sd_bus_open_system()</function>,
+ <function>sd_bus_open_system_remote()</function>, and
+ <function>sd_bus_open_system_machine()</function> return a new
+ connection object and the caller owns the sole reference. When not
+ needed anymore, this reference should be destroyed with
+ <citerefentry><refentrytitle>sd_bus_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+
+ <para>The functions <function>sd_bus_default()</function>,
+ <function>sd_bus_default_user()</function> and
+ <function>sd_bus_default_system()</function> do not necessarily
+ create a new object, but increase the connection reference of an
+ existing connection object by one. Use
+ <citerefentry><refentrytitle>sd_bus_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ to drop the reference.</para>
+
+ <para>Queued but unwritten/unread messages also keep a reference
+ to their bus connection object. For this reason, even if an
+ application dropped all references to a bus connection, it might
+ not get destroyed right away. Until all incoming queued
+ messages are read, and until all outgoing unwritten messages are
+ written, the bus object will stay
+ alive. <function>sd_bus_flush()</function> may be used to write
+ all outgoing queued messages so they drop their references. To
+ flush the unread incoming messages, use
+ <function>sd_bus_close()</function>, which will also close the bus
+ connection. When using the default bus logic, it is a good idea to
+ first invoke <function>sd_bus_flush()</function> followed by
+ <function>sd_bus_close()</function> when a thread or process
+ terminates, and thus its bus connection object should be
+ freed.</para>
+
+ <para>The life cycle of the default bus connection should be the
+ responsibility of the code that creates/owns the thread the
+ default bus connection object is associated with. Library code
+ should neither call <function>sd_bus_flush()</function> nor
+ <function>sd_bus_close()</function> on default bus objects unless
+ it does so in its own private, self-allocated thread. Library code
+ should not use the default bus object in other threads unless it
+ is clear that the program using it will life cycle the bus
+ connection object and flush and close it before exiting from the
+ thread. In libraries where it is not clear that the calling
+ program will life cycle the bus connection object, it is hence
+ recommended to use <function>sd_bus_open_system()</function>
+ instead of <function>sd_bus_default_system()</function> and
+ related calls.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive
+ integer. On failure, these calls return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>The specified parameters are invalid.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESOCKTNOSUPPORT</constant></term>
+
+ <listitem><para>The protocol version required to connect to the selected bus is not supported.</para></listitem>
+ </varlistentry>
+ </variablelist>
+
+ <para>In addition, any further connection-related errors may be
+ by returned. See <citerefentry><refentrytitle>sd_bus_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_open_user()</function> and the other
+ functions described here are available as a shared library, which
+ can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_ref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>ssh</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_error.xml b/src/libsystemd/sd_bus_error.xml
new file mode 100644
index 0000000000..c2d7ee389b
--- /dev/null
+++ b/src/libsystemd/sd_bus_error.xml
@@ -0,0 +1,389 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_error">
+
+ <refentryinfo>
+ <title>sd_bus_error</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_error</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_error</refname>
+ <refname>SD_BUS_ERROR_MAKE_CONST</refname>
+ <refname>SD_BUS_ERROR_NULL</refname>
+ <refname>sd_bus_error_free</refname>
+ <refname>sd_bus_error_set</refname>
+ <refname>sd_bus_error_setf</refname>
+ <refname>sd_bus_error_set_const</refname>
+ <refname>sd_bus_error_set_errno</refname>
+ <refname>sd_bus_error_set_errnof</refname>
+ <refname>sd_bus_error_set_errnofv</refname>
+ <refname>sd_bus_error_get_errno</refname>
+ <refname>sd_bus_error_copy</refname>
+ <refname>sd_bus_error_is_set</refname>
+ <refname>sd_bus_error_has_name</refname>
+
+ <refpurpose>sd-bus error handling</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo>typedef struct {
+ const char *name;
+ const char *message;
+ ...
+} sd_bus_error;</funcsynopsisinfo>
+
+ <para>
+ <constant>SD_BUS_ERROR_MAKE_CONST(<replaceable>name</replaceable>, <replaceable>message</replaceable>)</constant>
+ </para>
+ <para>
+ <constant>SD_BUS_ERROR_NULL</constant>
+ </para>
+
+ <funcprototype>
+ <funcdef>void <function>sd_bus_error_free</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_set</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>const char *<parameter>name</parameter></paramdef>
+ <paramdef>const char *<parameter>message</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_setf</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>const char *<parameter>name</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_set_const</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>const char *<parameter>name</parameter></paramdef>
+ <paramdef>const char *<parameter>message</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_set_errno</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>int <parameter>error</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_set_errnof</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>int <parameter>error</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_set_errnofv</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>int <parameter>error</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>va_list ap</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_get_errno</function></funcdef>
+ <paramdef>const sd_bus_error *<parameter>e</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_copy</function></funcdef>
+ <paramdef>sd_bus_error *<parameter>dst</parameter></paramdef>
+ <paramdef>const sd_bus_error *<parameter>e</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_is_set</function></funcdef>
+ <paramdef>const sd_bus_error *<parameter>e</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_has_name</function></funcdef>
+ <paramdef>const sd_bus_error *<parameter>e</parameter></paramdef>
+ <paramdef>const char *<parameter>name</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The <structname>sd_bus_error</structname> structure carries
+ information about a D-Bus error condition. The functions described
+ below may be used to set and query fields in this structure. The
+ <structfield>name</structfield> field contains a short identifier
+ of an error. It should follow the rules for error names described
+ in the D-Bus specification, subsection <ulink
+ url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names">Valid
+ Names</ulink>. A number of common, standardized error names are
+ described in
+ <citerefentry><refentrytitle>sd-bus-errors</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ but additional domain-specific errors may be defined by
+ applications. The <structfield>message</structfield> field usually
+ contains a human-readable string describing the details, but might
+ be NULL. An unset <structname>sd_bus_error</structname> structure
+ should have both fields initialized to NULL. Set an error
+ structure to <constant>SD_BUS_ERROR_NULL</constant> in order to
+ reset both fields to NULL. When no longer necessary, resources
+ held by the <structname>sd_bus_error</structname>structure should
+ be destroyed with <function>sd_bus_error_free()</function>.</para>
+
+ <para><function>sd_bus_error_set()</function> sets an error
+ structure to the specified name and message strings. The strings
+ will be copied into internal, newly allocated memory. It is
+ essential to free the error structure again when it is not
+ required anymore (see above). The function will return an
+ <varname>errno</varname>-like negative value (see <citerefentry
+ project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>)
+ determined from the specified error name. Various well-known
+ D-Bus errors are converted to well-known <varname>errno</varname>
+ counterparts, and the other ones to <constant>-EIO</constant>. See
+ <citerefentry><refentrytitle>sd-bus-errors</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for a list of well-known error names. Additional error mappings
+ may be defined with
+ <citerefentry><refentrytitle>sd_bus_error_add_map</refentrytitle><manvolnum>3</manvolnum></citerefentry>. If
+ <parameter>e</parameter> is NULL, no error structure is initialized,
+ but the error is still converted into an
+ <varname>errno</varname>-style error. If
+ <parameter>name</parameter> is <constant>NULL</constant>, it is
+ assumed that no error occurred, and 0 is returned. This means that
+ this function may be conveniently used in a
+ <function>return</function> statement. If
+ <parameter>message</parameter> is NULL, no message is set. This
+ call can fail if no memory may be allocated for the name and
+ message strings, in which case an
+ <constant>SD_BUS_ERROR_NO_MEMORY</constant> error might be set
+ instead and -ENOMEM be returned. Do not use this call on error
+ structures that are already initialized. If you intend to reuse an
+ error structure, free the old data stored in it with
+ <function>sd_bus_error_free()</function> first.</para>
+
+ <para><function>sd_bus_error_setf()</function> is similar to
+ <function>sd_bus_error_set()</function>, but takes a <citerefentry
+ project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ format string and corresponding arguments to generate the
+ <structfield>message</structfield> field.</para>
+
+ <para><function>sd_bus_error_set_const()</function> is similar to
+ <function>sd_bus_error_set()</function>, but the string parameters
+ are not copied internally, and must hence remain constant and
+ valid for the lifetime of <parameter>e</parameter>. Use this call
+ to avoid memory allocations when setting error structures. Since
+ this call does not allocate memory, it will not fail with an
+ out-of-memory condition as
+ <function>sd_bus_error_set()</function> can, as described
+ above. Alternatively, the
+ <constant>SD_BUS_ERROR_MAKE_CONST()</constant> macro may be used
+ to generate a literal, constant bus error structure
+ on-the-fly.</para>
+
+ <para><function>sd_bus_error_set_errno()</function> will set
+ <structfield>name</structfield> from an
+ <varname>errno</varname>-like value that is converted to a D-Bus
+ error. <citerefentry
+ project='die-net'><refentrytitle>strerror_r</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ will be used to set <structfield>message</structfield>. Well-known
+ D-Bus error names will be used for <structfield>name</structfield>
+ if applicable, otherwise a name in the
+ <literal>System.Error.</literal> namespace will be generated. The
+ sign of the specified error number is ignored. The absolute value
+ is used implicitly. The call always returns a negative value, for
+ convenient usage in <function>return</function> statements. This
+ call might fail due to lack of memory, in which case an
+ <constant>SD_BUS_ERROR_NO_MEMORY</constant> error is set instead,
+ and -ENOMEM is returned.</para>
+
+ <para><function>sd_bus_error_set_errnof()</function> is similar to
+ <function>sd_bus_error_set_errno()</function>, but in addition to
+ <parameter>error</parameter>, takes a <citerefentry
+ project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ format string and corresponding arguments. The
+ <structfield>message</structfield> field will be generated from
+ <parameter>format</parameter> and the arguments.</para>
+
+ <para><function>sd_bus_error_set_errnofv()</function> is similar to
+ <function>sd_bus_error_set_errnof()</function>, but takes the
+ format string parameters as <citerefentry
+ project='man-pages'><refentrytitle>va_arg</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ parameter list.</para>
+
+ <para><function>sd_bus_error_get_errno()</function> converts the
+ <structfield>name</structfield> field of an error structure to an
+ <varname>errno</varname>-like (positive) value using the same
+ rules as <function>sd_bus_error_set()</function>. If
+ <parameter>e</parameter> is <constant>NULL</constant>, 0 will be
+ returned.</para>
+
+ <para><function>sd_bus_error_copy()</function> will initialize
+ <parameter>dst</parameter> using the values in
+ <parameter>e</parameter>. If the strings in
+ <parameter>e</parameter> were set using
+ <function>sd_bus_set_error_const()</function>, they will be shared.
+ Otherwise, they will be copied. Returns a converted
+ <varname>errno</varname>-like, negative error code.</para>
+
+ <para><function>sd_bus_error_is_set()</function> will return a
+ non-zero value if <parameter>e</parameter> is
+ non-<constant>NULL</constant> and an error has been set,
+ <constant>false</constant> otherwise.</para>
+
+ <para><function>sd_bus_error_has_name()</function> will return a
+ non-zero value if <parameter>e</parameter> is
+ non-<constant>NULL</constant> and an error with the same
+ <parameter>name</parameter> has been set,
+ <constant>false</constant> otherwise.</para>
+
+ <para><function>sd_bus_error_free()</function> will destroy
+ resources held by <parameter>e</parameter>. The parameter itself
+ will not be deallocated, and must be <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>d
+ by the caller if necessary. The function may also be called safely
+ on unset errors (error structures with both fields set to NULL),
+ in which case it performs no operation. This call will reset the
+ error structure after freeing the data, so that all fields are set
+ to NULL. The structure may be reused afterwards.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The functions <function>sd_bus_error_set()</function>,
+ <function>sd_bus_error_setf()</function>, and
+ <function>sd_bus_error_set_const()</function>, when successful,
+ return the negative errno value corresponding to the
+ <parameter>name</parameter> parameter. The functions
+ <function>sd_bus_error_set_errno()</function>,
+ <function>sd_bus_error_set_errnof()</function> and
+ <function>sd_bus_error_set_errnofv()</function>, when successful,
+ return the negative value of the <parameter>error</parameter>
+ parameter. If an error occurs, one of the negative error values
+ listed below will be returned.</para>
+
+ <para><function>sd_bus_error_get_errno()</function> returns
+ <constant>false</constant> when <parameter>e</parameter> is
+ <constant>NULL</constant>, and a positive errno value mapped from
+ <parameter>e-&gt;name</parameter> otherwise.</para>
+
+ <para><function>sd_bus_error_copy()</function> returns 0 or a
+ positive integer on success, and a negative error value converted
+ from the error name otherwise.</para>
+
+ <para><function>sd_bus_error_is_set()</function> returns a
+ non-zero value when <parameter>e</parameter> and the
+ <structfield>name</structfield> field are
+ non-<constant>NULL</constant>, zero otherwise.</para>
+
+ <para><function>sd_bus_error_has_name()</function> returns a
+ non-zero value when <parameter>e</parameter> is
+ non-<constant>NULL</constant> and the
+ <structfield>name</structfield> field is equal to
+ <parameter>name</parameter>, zero otherwise.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Reference ownership</title>
+ <para><structname>sd_bus_error</structname> is not reference
+ counted. Users should destroy resources held by it by calling
+ <function>sd_bus_error_free()</function>. Usually, error structures
+ are allocated on the stack or passed in as function parameters,
+ but they may also be allocated dynamically, in which case it is
+ the duty of the caller to <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ the memory held by the structure itself after freeing its contents
+ with <function>sd_bus_error_free()</function>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>Error was already set in
+ <structname>sd_bus_error</structname> structure when one the
+ error-setting functions was called.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_set_error()</function> and other functions
+ described here are available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus-errors</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_error_add_map</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>strerror_r</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_error_add_map.xml b/src/libsystemd/sd_bus_error_add_map.xml
new file mode 100644
index 0000000000..7dc1ef6c90
--- /dev/null
+++ b/src/libsystemd/sd_bus_error_add_map.xml
@@ -0,0 +1,173 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_error_add_map">
+
+ <refentryinfo>
+ <title>sd_bus_error_add_map</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_error_add_map</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_error_add_map</refname>
+ <refname>sd_bus_error_map</refname>
+ <refname>SD_BUS_ERROR_MAP</refname>
+ <refname>SD_BUS_ERROR_END</refname>
+
+ <refpurpose>Additional sd-dbus error mappings</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo>typedef struct {
+ const char *name;
+ int code;
+ ...
+} sd_bus_error_map;</funcsynopsisinfo>
+
+ </funcsynopsis>
+
+ <para>
+ <constant>SD_BUS_ERROR_MAP(<replaceable>name</replaceable>, <replaceable>code</replaceable>)</constant>
+ </para>
+ <para>
+ <constant>SD_BUS_ERROR_MAP_END</constant>
+ </para>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_error_add_map</function></funcdef>
+ <paramdef>const sd_bus_map *<parameter>map</parameter></paramdef>
+ </funcprototype>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The <function>sd_bus_error_add_map()</function> call may be
+ used to register additional mappings for converting D-Bus errors
+ to GNU/Linux <varname>errno</varname>-style errors. The mappings
+ defined with this call are consulted by calls such as
+ <citerefentry><refentrytitle>sd_bus_error_set</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry><refentrytitle>sd_bus_error_get_errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>. By
+ default, a number of generic, standardized mappings are known, as
+ documented in
+ <citerefentry><refentrytitle>sd-bus-errors</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Use
+ this call to add further, application-specific mappings.</para>
+
+ <para>The function takes a pointer to an array of
+ <structname>sd_bus_error_map</structname> structures. A reference
+ to the specified array is added to the lookup tables for error
+ mappings. Note that the structure is not copied, and that it is hence
+ essential that the array stays available and constant during the
+ entire remaining runtime of the process.</para>
+
+ <para>The mapping array should be put together with a series of
+ <constant>SD_BUS_ERROR_MAP()</constant> macro invocations that
+ take a literal name string and a (positive)
+ <varname>errno</varname>-style error number. The last entry of the
+ array should be an invocation of the
+ <constant>SD_BUS_ERROR_MAP_END</constant> macro. The array should not be
+ put together without use of these two macros.</para>
+
+ <para>Note that the call is idempotent: it is safe to invoke it
+ multiple times with the parameter, which will only add the passed
+ mapping array once.</para>
+
+ <para>Note that the memory allocated by this call is not intended
+ to be freed during the lifetime of the process. It should not be
+ freed explicitly.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_bus_error_add_map()</function> returns a
+ positive value when the new array was added to the lookup
+ tables. It returns zero when the same array was already added
+ before. On error, a negative <varname>errno</varname>-style error
+ code is returned. See below for known error codes.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>The specified mapping array is invalid.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The various error definitions described here are available
+ as a shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_error</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus-errors</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>strerror_r</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_append.xml b/src/libsystemd/sd_bus_message_append.xml
new file mode 100644
index 0000000000..77fce02eae
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_append.xml
@@ -0,0 +1,264 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_append"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_bus_message_append</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_append</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_append</refname>
+
+ <refpurpose>Attach fields to a D-Bus message based on a type
+ string</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>const char *<parameter>types</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The <function>sd_bus_message_append()</function> function
+ appends a sequence of fields to the D-Bus message object
+ <parameter>m</parameter>. The type string
+ <parameter>types</parameter> describes the types of the field
+ arguments that follow. For each type specified in the type string,
+ one or more arguments need to be specified, in the same order as
+ declared in the type string.</para>
+
+ <para>The type string is composed of the elements shown in the
+ table below. It contains zero or more single "complete types".
+ Each complete type may be one of the basic types or a fully
+ described container type. A container type may be a structure with
+ the contained types, a variant, an array with its element type, or
+ a dictionary entry with the contained types. The type string is
+ <constant>NUL</constant>-terminated.</para>
+
+ <para>In case of a basic type, one argument of the corresponding
+ type is expected.</para>
+
+ <para>A structure is denoted by a sequence of complete types
+ between <literal>(</literal> and <literal>)</literal>. This
+ sequence cannot be empty — it must contain at least one type.
+ Arguments corresponding to this nested sequence follow the same
+ rules as if they were not nested.</para>
+
+ <para>A variant is denoted by <literal>v</literal>. Corresponding
+ arguments must begin with a type string denoting a complete type,
+ and following that, arguments corresponding to the specified type.
+ </para>
+
+ <para>An array is denoted by <literal>a</literal> followed by a
+ complete type. Corresponding arguments must begin with the number of
+ entries in the array, followed by the entries themselves,
+ matching the element type of the array.</para>
+
+ <para>A dictionary is an array of dictionary entries, denoted by
+ <literal>a</literal> followed by a pair of complete types between
+ <literal>{</literal> and <literal>}</literal>. The first of those
+ types must be a basic type. Corresponding arguments must begin
+ with the number of dictionary entries, followed by a pair of
+ values for each entry matching the element type of
+ the dictionary entries.</para>
+
+ <para>For further details on the D-Bus type system, please consult
+ the <ulink
+ url="http://dbus.freedesktop.org/doc/dbus-specification.html#type-system">D-Bus
+ Specification</ulink>.</para>
+
+ <table>
+ <title>Item type specifiers</title>
+
+ <tgroup cols='5'>
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="xpointer(//table[@id='format-specifiers'])//colspec" />
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="xpointer(//table[@id='format-specifiers']//thead)" />
+
+ <tbody>
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="xpointer(//table[@id='format-specifiers']//tbody/*)" />
+
+ <row>
+ <entry><literal>a</literal></entry>
+ <entry><constant>SD_BUS_TYPE_ARRAY</constant></entry>
+ <entry>array</entry>
+ <entry>determined by array type and size</entry>
+ <entry>int, followed by array contents</entry>
+ </row>
+
+ <row>
+ <entry><literal>v</literal></entry>
+ <entry><constant>SD_BUS_TYPE_VARIANT</constant></entry>
+ <entry>variant</entry>
+ <entry>determined by the type argument</entry>
+ <entry>signature string, followed by variant contents</entry>
+ </row>
+
+ <row>
+ <entry><literal>(</literal></entry>
+ <entry><constant>SD_BUS_TYPE_STRUCT_BEGIN</constant></entry>
+ <entry>array start</entry>
+ <entry morerows="1">determined by the nested types</entry>
+ <entry morerows="1">structure contents</entry>
+ </row>
+ <row>
+ <entry><literal>)</literal></entry>
+ <entry><constant>SD_BUS_TYPE_STRUCT_END</constant></entry>
+ <entry>array end</entry>
+ </row>
+
+ <row>
+ <entry><literal>{</literal></entry>
+ <entry><constant>SD_BUS_TYPE_DICT_ENTRY_BEGIN</constant></entry>
+ <entry>dictionary entry start</entry>
+ <entry morerows="1">determined by the nested types</entry>
+ <entry morerows="1">dictionary contents</entry>
+ </row>
+ <row>
+ <entry><literal>}</literal></entry>
+ <entry><constant>SD_BUS_TYPE_DICT_ENTRY_END</constant></entry>
+ <entry>dictionary entry end</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Types String Grammar</title>
+
+ <programlisting>types ::= complete_type*
+complete_type ::= basic_type | variant | structure | array | dictionary
+basic_type ::= "y" | "n" | "q" | "u" | "i" | "x" | "t" | "d" |
+ "b" | "h" |
+ "s" | "o" | "g"
+variant ::= "v"
+structure ::= "(" complete_type+ ")"
+array ::= "a" complete_type
+dictionary ::= "a" "{" basic_type complete_type "}"
+</programlisting>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>Append a single basic type (the string <literal>a string</literal>):
+ </para>
+
+ <programlisting>sd_bus_message *m;
+...
+sd_bus_message_append(m, "s", "a string");</programlisting>
+
+ <para>Append all types of integers:</para>
+
+ <programlisting>uint8_t y = 1;
+int16_t n = 2;
+uint16_t q = 3;
+int32_t i = 4;
+uint32_t u = 5;
+int32_t x = 6;
+uint32_t t = 7;
+double d = 8.0;
+sd_bus_message_append(m, "ynqiuxtd", y, n, q, i, u, x, t, d);</programlisting>
+
+ <para>Append a structure composed of a string and a D-Bus path:</para>
+
+ <programlisting>sd_bus_message_append(m, "(so)", "a string", "/a/path");
+</programlisting>
+
+ <para>Append an array of UNIX file descriptors:</para>
+
+ <programlisting>sd_bus_message_append(m, "ah", 3, STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO);
+</programlisting>
+
+ <para>Append a variant, with the real type "g" (signature),
+ and value "sdbusisgood":</para>
+
+ <programlisting>sd_bus_message_append(m, "v", "g", "sdbusisgood");</programlisting>
+
+ <para>Append a dictionary containing the mapping {1=>"a", 2=>"b", 3=>""}:
+ </para>
+
+ <programlisting>sd_bus_message_append(m, "a{is}", 3, 1, "a", 2, "b", 3, NULL);
+ </programlisting>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, this call returns 0 or a positive
+ integer. On failure, this call returns a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="errors" />
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_open_user()</function> and other functions
+ described here are available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd-bus</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_array</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_append_array.xml b/src/libsystemd/sd_bus_message_append_array.xml
new file mode 100644
index 0000000000..27db2a96c3
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_append_array.xml
@@ -0,0 +1,213 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_append_array"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_bus_message_append_array</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_append_array</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_append_array</refname>
+ <refname>sd_bus_message_append_array_memfd</refname>
+ <refname>sd_bus_message_append_array_iovec</refname>
+ <refname>sd_bus_message_append_array_space</refname>
+
+ <refpurpose>Append an array of fields to a D-Bus
+ message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_array</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>char <parameter>type</parameter></paramdef>
+ <paramdef>char void *<parameter>ptr</parameter></paramdef>
+ <paramdef>size_t <parameter>size</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_array_memfd</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>char <parameter>type</parameter></paramdef>
+ <paramdef>int <parameter>memfd</parameter></paramdef>
+ <paramdef>uint64_t <parameter>offset</parameter></paramdef>
+ <paramdef>uint64_t <parameter>size</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_array_iovec</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>char <parameter>type</parameter></paramdef>
+ <paramdef>const struct iovec *<parameter>iov</parameter></paramdef>
+ <paramdef>unsigned <parameter>n</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_array_space</funcdef>
+ <paramdef>char <parameter>type</parameter></paramdef>
+ <paramdef>size_t <parameter>size</parameter></paramdef>
+ <paramdef>void **<parameter>ptr</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The <function>sd_bus_message_append_array()</function>
+ function appends an array to a D-Bus message
+ <parameter>m</parameter>. A container will be opened, the array
+ contents appended, and the container closed. The parameter
+ <parameter>type</parameter> determines how the pointer
+ <parameter>p</parameter> is interpreted.
+ <parameter>type</parameter> must be one of the "trivial" types
+ <literal>y</literal>, <literal>n</literal>, <literal>q</literal>,
+ <literal>i</literal>, <literal>u</literal>, <literal>x</literal>,
+ <literal>t</literal>, <literal>d</literal> (but not
+ <literal>b</literal>), as defined by the <ulink
+ url="http://dbus.freedesktop.org/doc/dbus-specification.html#basic-types">Basic
+ Types</ulink> section of the D-Bus specification, and listed in
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ Pointer <parameter>p</parameter> must point to an array of size
+ <parameter>size</parameter> bytes containing items of the
+ respective type. Size <parameter>size</parameter> must be a
+ multiple of the size of the type <parameter>type</parameter>. As a
+ special case, <parameter>p</parameter> may be
+ <constant>NULL</constant>, if <parameter>size</parameter> is 0.
+ The memory pointed to by <parameter>p</parameter> is copied into
+ the memory area containing the message and stays in possession of
+ the caller. The caller may hence freely change the data after this
+ call without affecting the message the array was appended
+ to.</para>
+
+ <para>The <function>sd_bus_message_append_array_memfd()</function>
+ function appends an array of a trivial type to message
+ <parameter>m</parameter>, similar to
+ <function>sd_bus_message_append_array()</function>. The contents
+ of the memory file descriptor <parameter>memfd</parameter>
+ starting at the specified offset and of the specified size is
+ used as the contents of the array. The offset and size must be a
+ multiple of the size of the type
+ <parameter>type</parameter>. However, as a special exception, if
+ the offset is specified as zero and the size specified as
+ UINT64_MAX the full memory file descriptor contents is used. The
+ memory file descriptor is sealed by this call if it has not been
+ sealed yet, and cannot be modified after this call. See
+ <citerefentry
+ project='man-pages'><refentrytitle>memfd_create</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for details about memory file descriptors. Appending arrays with
+ memory file descriptors enables efficient zero-copy data transfer,
+ as the memory file descriptor may be passed as-is to the
+ destination, without copying the memory in it to the destination
+ process. Not all protocol transports support passing memory file
+ descriptors between participants, in which case this call will
+ automatically fall back to copying. Also, as memory file
+ descriptor passing is inefficient for smaller amounts of data,
+ copying might still be enforced even where memory file descriptor
+ passing is supported.</para>
+
+ <para>The <function>sd_bus_message_append_array_iovec()</function>
+ function appends an array of a trivial type to the message
+ <parameter>m</parameter>, similar to
+ <function>sd_bus_message_append_array()</function>. Contents of
+ the I/O vector array <parameter>iov</parameter> are used as the
+ contents of the array. The total size of
+ <parameter>iov</parameter> payload (the sum of
+ <structfield>iov_len</structfield> fields) must be a multiple of
+ the size of the type <parameter>type</parameter>. The
+ <parameter>iov</parameter> argument must point to
+ <parameter>n</parameter> I/O vector structures. Each structure may
+ have the <structname>iov_base</structname> field set, in which
+ case the memory pointed to will be copied into the message, or
+ unset (set to zero), in which case a block of zeros of length
+ <structname>iov_len</structname> bytes will be inserted. The
+ memory pointed at by <parameter>iov</parameter> may be changed
+ after this call.</para>
+
+ <para>The <function>sd_bus_message_append_array_space()</function>
+ function appends space for an array of a trivial type to message
+ <parameter>m</parameter>. It behaves the same as
+ <function>sd_bus_message_append_array()</function>, but instead of
+ copying items to the message, it returns a pointer to the
+ destination area to the caller in pointer
+ <parameter>p</parameter>. The caller should subsequently write the
+ array contents to this memory. Modifications to the memory
+ pointed to should only occur until the next operation on the bus
+ message is invoked. Most importantly, the memory should not be
+ altered anymore when another field has been added to the message
+ or the message has been sealed.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, they return a negative errno-style error code.</para>
+ </refsect1>
+
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="errors" />
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_append_array()</function> and other
+ functions described here are available as a shared library, which
+ can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>memfd_create</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html">The D-Bus specification</ulink>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_append_basic.xml b/src/libsystemd/sd_bus_message_append_basic.xml
new file mode 100644
index 0000000000..276953af69
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_append_basic.xml
@@ -0,0 +1,295 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_append_basic">
+
+ <refentryinfo>
+ <title>sd_bus_message_append_basic</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_append_basic</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_append_basic</refname>
+
+ <refpurpose>Attach a single field to a message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_basic</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>char <parameter>type</parameter></paramdef>
+ <paramdef>const void *<parameter>p</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_message_append_basic()</function> appends a
+ single field to the message <parameter>m</parameter>. The
+ parameter <parameter>type</parameter> determines how the pointer
+ <parameter>p</parameter> is interpreted.
+ <parameter>type</parameter> must be one of the basic types as
+ defined by the <ulink
+ url="http://dbus.freedesktop.org/doc/dbus-specification.html#basic-types">Basic
+ Types</ulink> section of the D-Bus specification, and listed in
+ the table below.
+ </para>
+
+ <table id='format-specifiers'>
+ <title>Item type specifiers</title>
+
+ <tgroup cols='5'>
+ <colspec colname='specifier' />
+ <colspec colname='constant' />
+ <colspec colname='description' />
+ <colspec colname='size' />
+ <colspec colname='ctype' />
+ <thead>
+ <row>
+ <entry>Specifier</entry>
+ <entry>Constant</entry>
+ <entry>Description</entry>
+ <entry>Size</entry>
+ <entry>Expected C Type</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry><literal>y</literal></entry>
+ <entry><constant>SD_BUS_TYPE_BYTE</constant></entry>
+ <entry>unsigned integer</entry>
+ <entry>1 byte</entry>
+ <entry>uint8_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>b</literal></entry>
+ <entry><constant>SD_BUS_TYPE_BOOLEAN</constant></entry>
+ <entry>boolean</entry>
+ <entry>4 bytes</entry>
+ <entry>int</entry>
+ </row>
+
+ <row>
+ <entry><literal>n</literal></entry>
+ <entry><constant>SD_BUS_TYPE_INT16</constant></entry>
+ <entry>signed integer</entry>
+ <entry>2 bytes</entry>
+ <entry>int16_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>q</literal></entry>
+ <entry><constant>SD_BUS_TYPE_UINT16</constant></entry>
+ <entry>unsigned integer</entry>
+ <entry>2 bytes</entry>
+ <entry>uint16_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>i</literal></entry>
+ <entry><constant>SD_BUS_TYPE_INT32</constant></entry>
+ <entry>signed integer</entry>
+ <entry>4 bytes</entry>
+ <entry>int32_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>u</literal></entry>
+ <entry><constant>SD_BUS_TYPE_UINT32</constant></entry>
+ <entry>unsigned integer</entry>
+ <entry>4 bytes</entry>
+ <entry>uint32_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>x</literal></entry>
+ <entry><constant>SD_BUS_TYPE_INT64</constant></entry>
+ <entry>signed integer</entry>
+ <entry>8 bytes</entry>
+ <entry>int64_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>t</literal></entry>
+ <entry><constant>SD_BUS_TYPE_UINT64</constant></entry>
+ <entry>unsigned integer</entry>
+ <entry>8 bytes</entry>
+ <entry>uint64_t</entry>
+ </row>
+
+ <row>
+ <entry><literal>d</literal></entry>
+ <entry><constant>SD_BUS_TYPE_DOUBLE</constant></entry>
+ <entry>floating-point</entry>
+ <entry>8 bytes</entry>
+ <entry>double</entry>
+ </row>
+
+ <row>
+ <entry><literal>s</literal></entry>
+ <entry><constant>SD_BUS_TYPE_STRING</constant></entry>
+ <entry>Unicode string</entry>
+ <entry>variable</entry>
+ <entry>char[]</entry>
+ </row>
+
+ <row>
+ <entry><literal>o</literal></entry>
+ <entry><constant>SD_BUS_TYPE_OBJECT_PATH</constant></entry>
+ <entry>object path</entry>
+ <entry>variable</entry>
+ <entry>char[]</entry>
+ </row>
+
+ <row>
+ <entry><literal>g</literal></entry>
+ <entry><constant>SD_BUS_TYPE_SIGNATURE</constant></entry>
+ <entry>signature</entry>
+ <entry>variable</entry>
+ <entry>char[]</entry>
+ </row>
+
+ <row>
+ <entry><literal>h</literal></entry>
+ <entry><constant>SD_BUS_TYPE_UNIX_FD</constant></entry>
+ <entry>UNIX file descriptor</entry>
+ <entry>4 bytes</entry>
+ <entry>int</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ <para>The value of the parameter is copied into a memory area held
+ by the message object, stays in the possession of the caller and
+ may hence be freely changed after this call without affecting the
+ bus message it has been added to. If <parameter>type</parameter>
+ is <literal>h</literal> (UNIX file descriptor), the descriptor is
+ duplicated by this call and the passed descriptor stays in
+ possession of the caller.</para>
+
+ <para>For types <literal>s</literal>, <literal>o</literal>, and
+ <literal>g</literal>, the parameter <parameter>p</parameter> is
+ interpreted as a pointer to a <constant>NUL</constant>-terminated
+ character sequence. As a special case, a <constant>NULL</constant>
+ pointer is interpreted as an empty string. The string should be
+ valid Unicode string encoded as UTF-8. In case of the two latter
+ types, the additional requirements for a D-Bus object path or
+ type signature should be satisfied. Those requirements should be
+ verified by the recipient of the message.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, this call returns 0 or a positive integer. On
+ failure, it returns a negative errno-style error code.</para>
+ </refsect1>
+
+ <refsect1 id='errors'>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>Specified parameter is invalid.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EPERM</constant></term>
+
+ <listitem><para>Message has been sealed.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>Message is in invalid state.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>Message cannot be appended to.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_bus_append_basic()</function> function
+ described here is available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html">The D-Bus specification</ulink>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_append_string_memfd.xml b/src/libsystemd/sd_bus_message_append_string_memfd.xml
new file mode 100644
index 0000000000..9e99999bf3
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_append_string_memfd.xml
@@ -0,0 +1,153 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_append_string_memfd"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_bus_message_append_string_memfd</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_append_string_memfd</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_append_string_memfd</refname>
+ <refname>sd_bus_message_append_string_iovec</refname>
+ <refname>sd_bus_message_append_string_space</refname>
+
+ <refpurpose>Attach a string to a message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_string_memfd</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>int <parameter>memfd</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_string_iovec</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>const struct iovec *<parameter>iov</parameter></paramdef>
+ <paramdef>unsigned <parameter>n</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_string_space</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>size_t <parameter>size</parameter></paramdef>
+ <paramdef>char **<parameter>s</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The functions
+ <function>sd_bus_message_append_string_memfd</function> and
+ <function>sd_bus_message_append_string_iovec</function> can be
+ used to append a single string (item of type <literal>s</literal>)
+ to message <parameter>m</parameter>.</para>
+
+ <para>In case of
+ <function>sd_bus_message_append_string_memfd</function>, the
+ contents of <parameter>memfd</parameter> are the string. They must
+ satisfy the same constraints as described for the
+ <literal>s</literal> type in
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>In case of
+ <function>sd_bus_message_append_string_iovec</function>, the
+ payload of <parameter>iov</parameter> is the string. It must
+ satisfy the same constraints as described for the
+ <literal>s</literal> type in
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>The <parameter>iov</parameter> argument must point to
+ <parameter>n</parameter> <structname>struct iovec</structname>
+ structures. Each structure may have the
+ <structname>iov_base</structname> field set, in which case the
+ memory pointed to will be copied into the message, or unset, in
+ which case a block of spaces (ASCII 32) of length
+ <structname>iov_len</structname> will be inserted. The
+ memory pointed at by <parameter>iov</parameter> may be changed
+ after this call.</para>
+
+ <para>The
+ <function>sd_bus_message_append_string_space</function> function appends
+ space for a string to message <parameter>m</parameter>. It behaves
+ similar to <function>sd_bus_message_append_basic</function> with
+ type <literal>s</literal>, but instead of copying a string into
+ the message, it returns a pointer to the destination area to
+ the caller in pointer <parameter>p</parameter>. Space for the string
+ of length <parameter>size</parameter> plus the terminating
+ <constant>NUL</constant> is allocated.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, those calls return 0 or a positive integer. On
+ failure, they returns a negative errno-style error code.</para>
+ </refsect1>
+
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="errors" />
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The functions described here are available as a shared library,
+ which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html">The D-Bus specification</ulink>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_append_strv.xml b/src/libsystemd/sd_bus_message_append_strv.xml
new file mode 100644
index 0000000000..0f77adcc8b
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_append_strv.xml
@@ -0,0 +1,116 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_append_strv"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_bus_message_append_strv</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_append_strv</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_append_strv</refname>
+
+ <refpurpose>Attach an array of strings to a message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int sd_bus_message_append_strv</funcdef>
+ <paramdef>sd_bus_message *<parameter>m</parameter></paramdef>
+ <paramdef>char **<parameter>l</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The <function>sd_bus_message_append</function> function can be
+ used to append an array of strings to message
+ <parameter>m</parameter>. The parameter <parameter>l</parameter>
+ shall point to a <constant>NULL</constant>-terminated array of pointers
+ to <constant>NUL</constant>-terminated strings. Each string must
+ satisfy the same constraints as described for the
+ <literal>s</literal> type in
+ <citerefentry><refentrytitle>sd_bus_message_append_basic</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+
+ <para>The memory pointed at by <parameter>p</parameter> and the
+ contents of the strings themselves are copied into the memory area
+ containing the message and may be changed after this call. Note
+ that the signature of <parameter>l</parameter> parameter is to be
+ treated as <type>const char *const *</type>, and the contents
+ will not be modified.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, this call returns 0 or a positive integer. On
+ failure, a negative errno-style error code is returned.</para>
+ </refsect1>
+
+ <xi:include href="sd_bus_message_append_basic.xml" xpointer="errors" />
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_bus_append_append_strv()</function> function
+ described here is available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_append_array</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html">The D-Bus specification</ulink>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_get_cookie.xml b/src/libsystemd/sd_bus_message_get_cookie.xml
new file mode 100644
index 0000000000..3328eead3d
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_get_cookie.xml
@@ -0,0 +1,146 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_get_cookie">
+
+ <refentryinfo>
+ <title>sd_bus_message_get_cookie</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_get_cookie</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_get_cookie</refname>
+ <refname>sd_bus_message_get_reply_cookie</refname>
+ <refpurpose>Returns the transaction cookie of a message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_message_get_cookie</function></funcdef>
+ <paramdef>sd_bus_message *<parameter>message</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>cookie</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_message_get_reply_cookie</function></funcdef>
+ <paramdef>sd_bus_message *<parameter>message</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>cookie</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_message_get_cookie()</function> returns the
+ transaction cookie of a message. The cookie uniquely identifies a
+ message within each bus peer, but is not globally unique. It is
+ assigned when a message is sent.</para>
+
+ <para><function>sd_bus_message_get_reply_cookie()</function>
+ returns the transaction cookie of the message the specified
+ message is a response to. When a reply message is generated for a
+ method call message, its cookie is copied over into this field.
+ Note that while every message that is transferred is identified by
+ a cookie, only response messages carry a reply cookie
+ field.</para>
+
+ <para>Both functions take a message object as first parameter and
+ a place to store the 64-bit cookie in.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, these calls return a negative errno-style error
+ code.</para>
+
+ <para>On success, the cookie/reply cookie is returned in the
+ specified 64-bit unsigned integer variable.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>A specified parameter
+ is invalid.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>No cookie has been assigned to this message.
+ This either indicates that the message has not been sent yet
+ and hence has no cookie assigned, or that the message is not a
+ method response message and hence carries a reply cookie
+ field.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_bus_message_get_cookie()</function> and
+ <function>sd_bus_message_get_reply_cookie()</function> interfaces
+ are available as a shared library, which can be compiled and
+ linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_message_get_monotonic_usec.xml b/src/libsystemd/sd_bus_message_get_monotonic_usec.xml
new file mode 100644
index 0000000000..2c0a8a5d54
--- /dev/null
+++ b/src/libsystemd/sd_bus_message_get_monotonic_usec.xml
@@ -0,0 +1,181 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_message_get_monotonic_usec">
+
+ <refentryinfo>
+ <title>sd_bus_message_get_monotonic_usec</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_message_get_monotonic_usec</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_message_get_monotonic_usec</refname>
+ <refname>sd_bus_message_get_realtime_usec</refname>
+ <refname>sd_bus_message_get_seqnum</refname>
+ <refpurpose>Retrieve the sender timestamps and sequence number of a message</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_message_get_monotonic_usec</function></funcdef>
+ <paramdef>sd_bus_message *<parameter>message</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_message_get_realtime_usec</function></funcdef>
+ <paramdef>sd_bus_message *<parameter>message</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_message_get_seqnum</function></funcdef>
+ <paramdef>sd_bus_message *<parameter>message</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>seqnum</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_message_get_monotonic_usec()</function>
+ returns the monotonic timestamp of the time the message was sent.
+ This value is in microseconds since the
+ <constant>CLOCK_MONOTONIC</constant> epoch, see
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for details.</para>
+
+ <para>Similarly,
+ <function>sd_bus_message_get_realtime_usec()</function> returns
+ the realtime (wallclock) timestamp of the time the message was
+ sent. This value is in microseconds since Jan 1st, 1970, i.e. in
+ the <constant>CLOCK_REALTIME</constant> clock.</para>
+
+ <para><function>sd_bus_message_get_seqnum()</function> returns the
+ kernel-assigned sequence number of the message. The kernel assigns
+ a global, monotonically increasing sequence number to all messages
+ transmitted on the local system, at the time the message was sent.
+ This sequence number is useful for determining message send order,
+ even across different buses of the local system. The sequence
+ number combined with the boot ID of the system (as returned by
+ <citerefentry><refentrytitle>sd_id128_get_boot</refentrytitle><manvolnum>3</manvolnum></citerefentry>)
+ is a suitable globally unique identifier for bus messages.</para>
+
+ <para>Note that the sending order and receiving order of messages
+ might differ, in particular for broadcast messages. This means
+ that the sequence number and the timestamps of messages a client
+ reads are not necessarily monotonically increasing.</para>
+
+ <para>These timestamps and the sequence number are attached to
+ each message by the kernel and cannot be manipulated by the
+ sender.</para>
+
+ <para>Note that these timestamps are only available on some bus
+ transports, and only after support for them has been negotiated
+ with the
+ <citerefentry><refentrytitle>sd_bus_negotiate_timestamp</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, these calls return a negative errno-style error
+ code.</para>
+
+ <para>On success, the timestamp or sequence number is returned in
+ the specified 64-bit unsigned integer variable.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>A specified parameter is
+ invalid.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>No timestamp or sequence number information is
+ attached to the passed message. This error is returned if the
+ underlying transport does not support timestamping or
+ assigning of sequence numbers, or if this feature has not been
+ negotiated with
+ <citerefentry><refentrytitle>sd_bus_negotiate_timestamp</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The
+ <function>sd_bus_message_get_monotonic_usec()</function>,
+ <function>sd_bus_message_get_realtime_usec()</function>, and
+ <function>sd_bus_message_get_seqnum()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_negotiate_timestamp</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_get_boot</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_negotiate_fds.xml b/src/libsystemd/sd_bus_negotiate_fds.xml
new file mode 100644
index 0000000000..a538b13cf0
--- /dev/null
+++ b/src/libsystemd/sd_bus_negotiate_fds.xml
@@ -0,0 +1,200 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_negotiate_fds">
+
+ <refentryinfo>
+ <title>sd_bus_negotiate_fds</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_negotiate_fds</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_negotiate_fds</refname>
+ <refname>sd_bus_negotiate_timestamp</refname>
+ <refname>sd_bus_negotiate_creds</refname>
+
+ <refpurpose>Control feature negotiation on bus connections</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_negotiate_fds</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ <paramdef>int <parameter>b</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_negotiate_timestamp</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ <paramdef>int <parameter>b</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_negotiate_creds</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ <paramdef>int <parameter>b</parameter></paramdef>
+ <paramdef>uint64_t <parameter>mask</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_negotiate_fds()</function> controls whether
+ file descriptor passing shall be negotiated for the specified bus
+ connection. It takes a bus object and a boolean, which, when true,
+ enables file descriptor passing, and, when false, disables
+ it. Note that not all transports and servers support file
+ descriptor passing. In particular, networked transports generally
+ do not support file descriptor passing. To find out whether file
+ descriptor passing is available after negotiation, use
+ <citerefentry><refentrytitle>sd_bus_can_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and pass <constant>SD_BUS_TYPE_UNIX_FD</constant>. Note that file
+ descriptor passing is always enabled for both sending and
+ receiving or for neither, but never only in one direction. By
+ default, file descriptor passing is negotiated for all
+ connections.</para>
+
+ <para>Note that when bus activation is used, it is highly
+ recommended to set the <option>AcceptFileDescriptors=</option>
+ setting in the <filename>.busname</filename> unit file to the same
+ setting as negotiated by the program ultimately activated. By
+ default, file descriptor passing is enabled for both.</para>
+
+ <para><function>sd_bus_negotiate_timestamps()</function> controls
+ whether implicit sender timestamps shall be attached automatically
+ to all incoming messages. Takes a bus object and a boolean, which,
+ when true, enables timestamping, and, when false, disables it.
+ Use
+ <citerefentry><refentrytitle>sd_bus_message_get_monotonic_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_seqnum</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ to query the timestamps of incoming messages. If negotiation is
+ disabled or not supported, these calls will fail with
+ <constant>-ENODATA</constant>. Note that not all transports
+ support timestamping of messages. Specifically, timestamping is
+ only available on the kdbus transport, but not on dbus1. The
+ timestamping is applied by the kernel and cannot be manipulated by
+ userspace. By default, message timestamping is not negotiated for
+ connections.</para>
+
+ <para><function>sd_bus_negotiate_creds()</function> controls
+ whether and which implicit sender credentials shall be attached
+ automatically to all incoming messages. Takes a bus object and a
+ boolean indicating whether to enable or disable the credential
+ parts encoded in the bit mask value argument. Note that not all
+ transports support attaching sender credentials to messages, or do
+ not support all types of sender credential parameters, or might
+ suppress them under certain circumstances for individual
+ messages. Specifically, implicit sender credentials on messages
+ are only fully supported on kdbus transports, and dbus1 only
+ supports <constant>SD_BUS_CREDS_UNIQUE_NAME</constant>. The sender
+ credentials are attached by the kernel and cannot be manipulated
+ by userspace, and are thus suitable for authorization
+ decisions. By default, only
+ <constant>SD_BUS_CREDS_WELL_KNOWN_NAMES</constant> and
+ <constant>SD_BUS_CREDS_UNIQUE_NAME</constant> are enabled. In
+ fact, these two credential fields are always sent along and cannot
+ be turned off.</para>
+
+ <para>The <function>sd_bus_negotiate_fds()</function> function may
+ be called only before the connection has been started with
+ <citerefentry><refentrytitle>sd_bus_start</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Both
+ <function>sd_bus_negotiate_timestamp()</function> and
+ <function>sd_bus_negotiate_creds()</function> may also be called
+ after a connection has been set up. Note that, when operating on a
+ connection that is shared between multiple components of the same
+ program (for example via
+ <citerefentry><refentrytitle>sd_bus_default</refentrytitle><manvolnum>3</manvolnum></citerefentry>),
+ it is highly recommended to only enable additional per message
+ metadata fields, but never disable them again, in order not to
+ disable functionality needed by other components.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these functions return 0 or a
+ positive integer. On failure, they return a negative errno-style
+ error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EPERM</constant></term>
+
+ <listitem><para>The bus connection has already been started.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_negotiate_fds()</function> and the other
+ functions described here are available as a shared library, which
+ can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_start</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_can_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_monotonic_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_seqnum</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.busname</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_new.xml b/src/libsystemd/sd_bus_new.xml
new file mode 100644
index 0000000000..d281b5dd44
--- /dev/null
+++ b/src/libsystemd/sd_bus_new.xml
@@ -0,0 +1,189 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_new">
+
+ <refentryinfo>
+ <title>sd_bus_new</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_new</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_new</refname>
+ <refname>sd_bus_ref</refname>
+ <refname>sd_bus_unref</refname>
+ <refname>sd_bus_unrefp</refname>
+
+ <refpurpose>Create a new bus object and create or destroy references to it</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_new</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_bus *<function>sd_bus_ref</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_bus *<function>sd_bus_unref</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_bus_unrefp</function></funcdef>
+ <paramdef>sd_bus **<parameter>bus</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_new()</function> creates a new bus
+ object. This object is reference-counted, and will be destroyed
+ when all references are gone. Initially, the caller of this
+ function owns the sole reference and the bus object will not be
+ connected to any bus. To connect it to a bus, make sure
+ to set an address with
+ <citerefentry><refentrytitle>sd_bus_set_address</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or a related call, and then start the connection with
+ <citerefentry><refentrytitle>sd_bus_start</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>In most cases, it is a better idea to invoke
+ <citerefentry><refentrytitle>sd_bus_default_user</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_default_system</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or related calls instead of the more low-level
+ <function>sd_bus_new()</function> and
+ <function>sd_bus_start()</function>. The higher-level calls not
+ only allocate a bus object but also start the connection to a
+ well-known bus in a single function invocation.</para>
+
+ <para><function>sd_bus_ref()</function> increases the reference
+ counter of <parameter>bus</parameter> by one.</para>
+
+ <para><function>sd_bus_unref()</function> decreases the reference
+ counter of <parameter>bus</parameter> by one. Once the reference
+ count has dropped to zero, <parameter>bus</parameter> is destroyed
+ and cannot be used anymore, so further calls to
+ <function>sd_bus_ref()</function> or
+ <function>sd_bus_unref()</function> are illegal.</para>
+
+ <para><function>sd_bus_unrefp()</function> is similar to
+ <function>sd_bus_unref()</function> but takes a pointer to a
+ pointer to an <type>sd_bus</type> object. This call is useful in
+ conjunction with GCC's and LLVM's <ulink
+ url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up
+ Variable Attribute</ulink>. Note that this function is defined as
+ inline function. Use a declaration like the following, in order to
+ allocate a bus object that is freed automatically as the code
+ block is left:</para>
+
+ <programlisting>{
+ __attribute__((cleanup(sd_bus_unrefp)) sd_bus *bus = NULL;
+ int r;
+ …
+ r = sd_bus_default(&amp;bus);
+ if (r &lt; 0)
+ fprintf(stderr, "Failed to allocate bus: %s\n", strerror(-r));
+ …
+}</programlisting>
+
+ <para><function>sd_bus_ref()</function>,
+ <function>sd_bus_unref()</function> and
+ <function>sd_bus_unrefp()</function> execute no operation if the
+ passed in bus object is <constant>NULL</constant>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_bus_new()</function> returns 0 or a
+ positive integer. On failure, it returns a negative errno-style
+ error code.</para>
+
+ <para><function>sd_bus_ref()</function> always returns the argument.
+ </para>
+
+ <para><function>sd_bus_unref()</function> always returns
+ <constant>NULL</constant>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_new()</function> and other functions
+ described here are available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_default_user</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_default_system</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_open_user</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_open_system</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_path_encode.xml b/src/libsystemd/sd_bus_path_encode.xml
new file mode 100644
index 0000000000..3088243e45
--- /dev/null
+++ b/src/libsystemd/sd_bus_path_encode.xml
@@ -0,0 +1,188 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_path_encode">
+
+ <refentryinfo>
+ <title>sd_bus_path_encode</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>A monkey with a typewriter</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_path_encode</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_path_encode</refname>
+ <refname>sd_bus_path_encode_many</refname>
+ <refname>sd_bus_path_decode</refname>
+ <refname>sd_bus_path_decode_many</refname>
+
+ <refpurpose>Convert an external identifier into an object path and back</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_path_encode</function></funcdef>
+ <paramdef>const char *<parameter>prefix</parameter></paramdef>
+ <paramdef>const char *<parameter>external_id</parameter></paramdef>
+ <paramdef>char **<parameter>ret_path</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_path_encode_many</function></funcdef>
+ <paramdef>char **<parameter>out</parameter></paramdef>
+ <paramdef>const char *<parameter>path_template</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_path_decode</function></funcdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ <paramdef>const char *<parameter>prefix</parameter></paramdef>
+ <paramdef>char **<parameter>ret_external_id</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_path_decode_many</function></funcdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ <paramdef>const char *<parameter>path_template</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_path_encode()</function> and
+ <function>sd_bus_path_decode()</function> convert external
+ identifier strings into object paths and back. These functions are
+ useful to map application-specific string identifiers of any kind
+ into bus object paths in a simple, reversible and safe way.</para>
+
+ <para><function>sd_bus_path_encode()</function> takes a bus path
+ prefix and an external identifier string as arguments, plus a
+ place to store the returned bus path string. The bus path prefix
+ must be a valid bus path, starting with a slash
+ <literal>/</literal>, and not ending in one. The external
+ identifier string may be in any format, may be the empty string,
+ and has no restrictions on the charset — however, it must
+ always be <constant>NUL</constant>-terminated. The returned string
+ will be the concatenation of the bus path prefix plus an escaped
+ version of the external identifier string. This operation may be
+ reversed with <function>sd_bus_decode()</function>. It is
+ recommended to only use external identifiers that generally
+ require little escaping to be turned into valid bus path
+ identifiers (for example, by sticking to a 7-bit ASCII character
+ set), in order to ensure the resulting bus path is still short and
+ easily processed.</para>
+
+ <para><function>sd_bus_path_decode()</function> reverses the
+ operation of <function>sd_bus_path_encode()</function> and thus
+ regenerates an external identifier string from a bus path. It
+ takes a bus path and a prefix string, plus a place to store the
+ returned external identifier string. If the bus path does not
+ start with the specified prefix, 0 is returned and the returned
+ string is set to <constant>NULL</constant>. Otherwise, the
+ string following the prefix is unescaped and returned in the
+ external identifier string.</para>
+
+ <para>The escaping used will replace all characters which are
+ invalid in a bus object path by <literal>_</literal>, followed by a
+ hexadecimal value. As a special case, the empty string will be
+ replaced by a lone <literal>_</literal>.</para>
+
+ <para><function>sd_bus_path_encode_many()</function> works like
+ its counterpart <function>sd_bus_path_encode()</function>, but
+ takes a path template as argument and encodes multiple labels
+ according to its embedded directives. For each
+ <literal>%</literal> character found in the template, the caller
+ must provide a string via varargs, which will be encoded and
+ embedded at the position of the <literal>%</literal> character.
+ Any other character in the template is copied verbatim into the
+ encoded path.</para>
+
+ <para><function>sd_bus_path_decode_many()</function> does the
+ reverse of <function>sd_bus_path_encode_many()</function>. It
+ decodes the passed object path according to the given
+ path template. For each <literal>%</literal> character in the
+ template, the caller must provide an output storage
+ (<literal>char **</literal>) via varargs. The decoded label
+ will be stored there. Each <literal>%</literal> character will
+ only match the current label. It will never match across labels.
+ Furthermore, only a single directive is allowed per label.
+ If <literal>NULL</literal> is passed as output storage, the
+ label is verified but not returned to the caller.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_bus_path_encode()</function>
+ returns positive or 0, and a valid bus path in the return
+ argument. On success, <function>sd_bus_path_decode()</function>
+ returns a positive value if the prefixed matched, or 0 if it
+ did not. If the prefix matched, the external identifier is returned
+ in the return parameter. If it did not match, NULL is returned in
+ the return parameter. On failure, a negative errno-style error
+ number is returned by either function. The returned strings must
+ be
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>'d
+ by the caller.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para><function>sd_bus_path_encode()</function> and
+ <function>sd_bus_path_decode()</function> are available as a
+ shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_bus_request_name.xml b/src/libsystemd/sd_bus_request_name.xml
new file mode 100644
index 0000000000..f07ae09555
--- /dev/null
+++ b/src/libsystemd/sd_bus_request_name.xml
@@ -0,0 +1,213 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_bus_request_name">
+
+ <refentryinfo>
+ <title>sd_bus_request_name</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_bus_request_name</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_bus_request_name</refname>
+ <refname>sd_bus_release_name</refname>
+ <refpurpose>Request or release a well-known service name on a bus</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_request_name</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ <paramdef>const char *<parameter>name</parameter></paramdef>
+ <paramdef>uint64_t <parameter>flags</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_bus_release_name</function></funcdef>
+ <paramdef>sd_bus *<parameter>bus</parameter></paramdef>
+ <paramdef>const char *<parameter>name</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_bus_request_name()</function> requests a
+ well-known service name on a bus. It takes a bus connection, a
+ valid bus name and a flags parameter. The flags parameter is a
+ combination of the following flags:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><varname>SD_BUS_NAME_ALLOW_REPLACEMENT</varname></term>
+
+ <listitem><para>After acquiring the name successfully, permit
+ other peers to take over the name when they try to acquire it
+ with the <varname>SD_BUS_NAME_REPLACE_EXISTING</varname> flag
+ set. If <varname>SD_BUS_NAME_ALLOW_REPLACEMENT</varname> is
+ not set on the original request, such a request by other peers
+ will be denied.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>SD_BUS_NAME_REPLACE_EXISTING</varname></term>
+
+ <listitem><para>Take over the name if it is already acquired
+ by another peer, and that other peer has permitted takeover by
+ setting <varname>SD_BUS_NAME_ALLOW_REPLACEMENT</varname> while
+ acquiring it.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>SD_BUS_NAME_QUEUE</varname></term>
+
+ <listitem><para>Queue the acquisition of the name when the
+ name is already taken.</para></listitem>
+ </varlistentry>
+ </variablelist>
+
+ <para><function>sd_bus_release_name()</function> releases an
+ acquired well-known name. It takes a bus connection and a valid
+ bus name as parameters.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, these calls return a negative errno-style error
+ code.</para>
+
+ <para>If <varname>SD_BUS_NAME_QUEUE</varname> is specified,
+ <function>sd_bus_request_name()</function> will return 0 when the
+ name is already taken by another peer and the client has been
+ added to the queue for the name. In that case, the caller can
+ subscribe to <literal>NameOwnerChanged</literal> signals to be
+ notified when the name is successfully acquired.
+ <function>sd_bus_request_name()</function> returns &gt; 0 when the
+ name has immediately been acquired successfully.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EALREADY</constant></term>
+
+ <listitem><para>The caller already is the owner of the
+ specified name.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EEXIST</constant></term>
+
+ <listitem><para>The name has already been acquired by a
+ different peer, and SD_BUS_NAME_REPLACE_EXISTING was not
+ specified or the other peer did not specify
+ SD_BUS_NAME_ALLOW_REPLACEMENT while acquiring the
+ name.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESRCH</constant></term>
+
+ <listitem><para>It was attempted to release a name that is
+ currently not registered on the bus.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EADDRINUSE</constant></term>
+
+ <listitem><para>It was attempted to release a name that is
+ owned by a different peer on the bus.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>A specified parameter is invalid. This is also
+ generated when the requested name is a special service name
+ reserved by the D-Bus specification, or when the operation is
+ requested on a connection that does not refer to a
+ bus.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOTCONN</constant></term>
+
+ <listitem><para>The bus connection has been
+ disconnected.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The bus connection has been created in a
+ different process than the current one.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_bus_acquire_name()</function> and
+ <function>sd_bus_release_name()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_add_child.xml b/src/libsystemd/sd_event_add_child.xml
new file mode 100644
index 0000000000..bc732db7fa
--- /dev/null
+++ b/src/libsystemd/sd_event_add_child.xml
@@ -0,0 +1,246 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_add_child" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_add_child</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>More text</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_add_child</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_add_child</refname>
+ <refname>sd_event_source_get_child_pid</refname>
+ <refname>sd_event_child_handler_t</refname>
+
+ <refpurpose>Add a child process state change event source to an event loop</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>typedef</token> struct sd_event_source sd_event_source;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_event_child_handler_t</function>)</funcdef>
+ <paramdef>sd_event_source *<parameter>s</parameter></paramdef>
+ <paramdef>const siginfo_t *<parameter>si</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_child</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>int <parameter>options</parameter></paramdef>
+ <paramdef>sd_event_child_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_child_pid</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>pid_t *<parameter>pid</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_add_child()</function> adds a new child
+ process state change event source to an event loop. The event loop
+ object is specified in the <parameter>event</parameter> parameter,
+ the event source object is returned in the
+ <parameter>source</parameter> parameter. The
+ <parameter>pid</parameter> parameter specifies the PID of the
+ process to watch. The <parameter>handler</parameter> must
+ reference a function to call when the process changes state. The
+ handler function will be passed the
+ <parameter>userdata</parameter> pointer, which may be chosen
+ freely by the caller. The handler also receives a pointer to a
+ <structname>siginfo_t</structname> structure containing
+ information about the child process event. The
+ <parameter>options</parameter> parameter determines which state
+ changes will be watched for. It must contain an OR-ed mask of
+ <constant>WEXITED</constant> (watch for the child process
+ terminating), <constant>WSTOPPED</constant> (watch for the child
+ process being stopped by a signal), and
+ <constant>WCONTINUED</constant> (watch for the child process being
+ resumed by a signal). See <citerefentry
+ project='man-pages'><refentrytitle>waitid</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for further information.</para>
+
+ <para>Only a single handler may be installed for a specific
+ child process. The handler is enabled for a single event
+ (<constant>SD_EVENT_ONESHOT</constant>), but this may be changed
+ with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If the handler function returns a negative error code, it will be
+ disabled after the invocation, even if the
+ <constant>SD_EVENT_ON</constant> mode was requested before.
+ </para>
+
+ <para>To destroy an event source object use
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ but note that the event source is only removed from the event loop
+ when all references to the event source are dropped. To make sure
+ an event source does not fire anymore, even when there's still a
+ reference to it kept, consider setting the event source to
+ <constant>SD_EVENT_OFF</constant> with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>If the second parameter of
+ <function>sd_event_add_child()</function> is passed as NULL no
+ reference to the event source object is returned. In this case the
+ event source is considered "floating", and will be destroyed
+ implicitly when the event loop itself is destroyed.</para>
+
+ <para>Note that the <parameter>handler</parameter> function is
+ invoked at a time where the child process is not reaped yet (and
+ thus still is exposed as a zombie process by the kernel). However,
+ the child will be reaped automatically after the function
+ returns. Child processes for which no child process state change
+ event sources are installed will not be reaped by the event loop
+ implementation.</para>
+
+ <para>If both a child process state change event source and a
+ <constant>SIGCHLD</constant> signal event source is installed in
+ the same event loop, the configured event source priorities decide
+ which event source is dispatched first. If the signal handler is
+ processed first, it should leave the child processes for which
+ child process state change event sources are installed unreaped.</para>
+
+ <para><function>sd_event_source_get_child_pid()</function>
+ retrieves the configured PID of a child process state change event
+ source created previously with
+ <function>sd_event_add_child()</function>. It takes the event
+ source object as the <parameter>source</parameter> parameter and a
+ pointer to a <type>pid_t</type> variable to return the process ID
+ in.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these functions return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to allocate an object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An invalid argument has been passed. This includes
+ specifying an empty mask in <parameter>options</parameter> or a mask
+ which contains values different than a combination of
+ <constant>WEXITED</constant>, <constant>WSTOPPED</constant>, and
+ <constant>WCONTINUED</constant>.
+ </para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EBUSY</constant></term>
+
+ <listitem><para>A handler is already installed for this
+ child process.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EDOM</constant></term>
+
+ <listitem><para>The passed event source is not a child process event source.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>waitid</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_add_defer.xml b/src/libsystemd/sd_event_add_defer.xml
new file mode 100644
index 0000000000..d9ebd3b179
--- /dev/null
+++ b/src/libsystemd/sd_event_add_defer.xml
@@ -0,0 +1,216 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_add_defer" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_add_defer</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>More text</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_add_defer</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_add_defer</refname>
+ <refname>sd_event_add_post</refname>
+ <refname>sd_event_add_exit</refname>
+ <refname>sd_event_handler_t</refname>
+
+ <refpurpose>Add static event sources to an event loop</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>typedef</token> struct sd_event_source sd_event_source;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_event_handler_t</function>)</funcdef>
+ <paramdef>sd_event_source *<parameter>s</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_defer</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>sd_event_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_post</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>sd_event_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_exit</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>sd_event_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>These three functions add new static event sources to an
+ event loop. The event loop object is specified in the
+ <parameter>event</parameter> parameter, the event source object is
+ returned in the <parameter>source</parameter> parameter. The event
+ sources are enabled statically and will "fire" when the event loop
+ is run and the conditions described below are met. The handler
+ function will be passed the <parameter>userdata</parameter>
+ pointer, which may be chosen freely by the caller.</para>
+
+ <para><function>sd_event_add_defer()</function> adds a new event
+ source that will be dispatched instantly, before the event loop
+ goes to sleep again and waits for new events. By default, the
+ handler will be called once
+ (<constant>SD_EVENT_ONESHOT</constant>). Note that if the event
+ source is set to <constant>SD_EVENT_ON</constant> the event loop
+ will never go to sleep again, but continuously call the handler,
+ possibly interleaved with other event sources.</para>
+
+ <para><function>sd_event_add_post()</function> adds a new event
+ source that is run before the event loop will sleep and wait
+ for new events, but only after at least one other non-post event
+ source was dispatched. By default, the source is enabled
+ permanently (<constant>SD_EVENT_ON</constant>). Note that this
+ event source type will still allow the event loop to go to sleep
+ again, even if set to <constant>SD_EVENT_ON</constant>, as long as
+ no other event source is ever triggered.</para>
+
+ <para><function>sd_event_add_exit()</function> adds a new event
+ source that will be dispatched when the event loop is terminated
+ with <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>The
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ function may be used to enable the event source permanently
+ (<constant>SD_EVENT_ON</constant>) or to make it fire just once
+ (<constant>SD_EVENT_ONESHOT</constant>).</para>
+
+ <para>If the handler function returns a negative error code, it
+ will be disabled after the invocation, even if the
+ <constant>SD_EVENT_ON</constant> mode was requested before.</para>
+
+ <para>To destroy an event source object use
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ but note that the event source is only removed from the event loop
+ when all references to the event source are dropped. To make sure
+ an event source does not fire anymore, even when there's still a
+ reference to it kept, consider setting the event source to
+ <constant>SD_EVENT_OFF</constant> with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>If the second parameter of these functions is passed as
+ NULL no reference to the event source object is returned. In this
+ case the event source is considered "floating", and will be
+ destroyed implicitly when the event loop itself is
+ destroyed.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, this functions return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to allocate an object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An invalid argument has been passed.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_add_io.xml b/src/libsystemd/sd_event_add_io.xml
new file mode 100644
index 0000000000..c3749164cd
--- /dev/null
+++ b/src/libsystemd/sd_event_add_io.xml
@@ -0,0 +1,300 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_add_io" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_add_io</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_add_io</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_add_io</refname>
+ <refname>sd_event_source_get_io_events</refname>
+ <refname>sd_event_source_set_io_events</refname>
+ <refname>sd_event_source_get_io_revents</refname>
+ <refname>sd_event_source_get_io_fd</refname>
+ <refname>sd_event_source_set_io_fd</refname>
+ <refname>sd_event_source</refname>
+ <refname>sd_event_io_handler_t</refname>
+
+ <refpurpose>Add an I/O event source to an event loop</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>typedef</token> struct sd_event_source sd_event_source;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_event_io_handler_t</function>)</funcdef>
+ <paramdef>sd_event_source *<parameter>s</parameter></paramdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>uint32_t <parameter>revents</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_io</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>uint32_t <parameter>events</parameter></paramdef>
+ <paramdef>sd_event_io_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_io_events</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint32_t *<parameter>events</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_io_events</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint32_t <parameter>events</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_io_revents</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint32_t *<parameter>revents</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_io_fd</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_io_fd</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_add_io()</function> adds a new I/O event
+ source to an event loop. The event loop object is specified in the
+ <parameter>event</parameter> parameter, the event source object is
+ returned in the <parameter>source</parameter> parameter. The
+ <parameter>fd</parameter> parameter takes the UNIX file descriptor
+ to watch, which may refer to a socket, a FIFO, a message queue, a
+ serial connection, a character device, or any other file descriptor
+ compatible with Linux
+ <citerefentry project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>. The
+ <parameter>events</parameter> parameter takes a bit mask of events
+ to watch for, a combination of the following event flags:
+ <constant>EPOLLIN</constant>, <constant>EPOLLOUT</constant>,
+ <constant>EPOLLRDHUP</constant>, <constant>EPOLLPRI</constant>,
+ and <constant>EPOLLET</constant>, see
+ <citerefentry project='man-pages'><refentrytitle>epoll_ctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for details. The <parameter>handler</parameter> shall reference a
+ function to call when the event source is triggered. The
+ <parameter>userdata</parameter> pointer will be passed to the
+ handler function, and may be chosen freely by the caller. The
+ handler will also be passed the file descriptor the event was seen
+ on, as well as the actual event flags. It's generally a subset of
+ the events watched, however may additionally include
+ <constant>EPOLLERR</constant> and <constant>EPOLLHUP</constant>.
+ </para>
+
+ <para>By default, an event source will stay enabled
+ continuously (<constant>SD_EVENT_ON</constant>), but this may be
+ changed with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If the handler function returns a negative error code, it will be
+ disabled after the invocation, even if the
+ <constant>SD_EVENT_ON</constant> mode was requested before. Note
+ that an event source set to <constant>SD_EVENT_ON</constant> will
+ fire continuously unless data is read from or written to the file
+ descriptor to reset the mask of events seen.
+ </para>
+
+ <para>Setting the I/O event mask to watch for to 0 does not mean
+ that the event source won't be triggered anymore, as
+ <constant>EPOLLHUP</constant> and <constant>EPOLLERR</constant>
+ may be triggered even with a zero event mask. To temporarily
+ disable an I/O event source use
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ with <constant>SD_EVENT_OFF</constant> instead.</para>
+
+ <para>To destroy an event source object use
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ but note that the event source is only removed from the event loop
+ when all references to the event source are dropped. To make sure
+ an event source does not fire anymore, even if it is still referenced,
+ disable the event source using
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ with <constant>SD_EVENT_OFF</constant>.</para>
+
+ <para>If the second parameter of
+ <function>sd_event_add_io()</function> is
+ <constant>NULL</constant> no reference to the event source object
+ is returned. In this case the event source is considered
+ "floating", and will be destroyed implicitly when the event loop
+ itself is destroyed.</para>
+
+ <para>It is recommended to use
+ <function>sd_event_add_io()</function> only in conjunction with
+ file descriptors that have <constant>O_NONBLOCK</constant> set, to
+ ensure that all I/O operations from invoked handlers are properly
+ asynchronous and non-blocking. Using file descriptors without
+ <constant>O_NONBLOCK</constant> might result in unexpected
+ starvation of other event sources. See
+ <citerefentry project='man-pages'><refentrytitle>fcntl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for details on enabling <constant>O_NONBLOCK</constant> mode.</para>
+
+ <para><function>sd_event_source_get_io_events()</function> retrieves
+ the configured mask of watched I/O events of an event source created
+ previously with <function>sd_event_add_io()</function>. It takes
+ the event source object and a pointer to a variable to store the
+ mask in.</para>
+
+ <para><function>sd_event_source_set_io_events()</function>
+ configures the mask of watched I/O events of an event source created
+ previously with <function>sd_event_add_io()</function>. It takes the
+ event source object and the new event mask.</para>
+
+ <para><function>sd_event_source_get_io_revents()</function>
+ retrieves the I/O event mask of currently seen but undispatched
+ events from an event source created previously with
+ <function>sd_event_add_io()</function>. It takes the event source
+ object and a pointer to a variable to store the event mask
+ in. When called from a handler function on the handler's event
+ source object this will return the same mask as passed to the
+ handler's <parameter>revents</parameter> parameter. This call is
+ primarily useful to check for undispatched events of an event
+ source from the handler of an unrelated (possibly higher priority)
+ event source. Note the relation between
+ <function>sd_event_source_get_pending()</function> and
+ <function>sd_event_source_get_io_revents()</function>: both
+ functions will report non-zero results when there's an event
+ pending for the event source, but the former applies to all event
+ source types, the latter only to I/O event sources.</para>
+
+ <para><function>sd_event_source_get_io_fd()</function> retrieves
+ the UNIX file descriptor of an event source created previously
+ with <function>sd_event_add_io()</function>. It takes the event
+ source object and returns the non-negative file descriptor
+ or a negative error number on error (see below).</para>
+
+ <para><function>sd_event_source_set_io_fd()</function>
+ changes the UNIX file descriptor of an I/O event source created
+ previously with <function>sd_event_add_io()</function>. It takes
+ the event source object and the new file descriptor.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these functions return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned values may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to allocate an object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An invalid argument has been passed.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EDOM</constant></term>
+
+ <listitem><para>The passed event source is not an I/O event source.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_get_pending</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>epoll_ctl</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_add_signal.xml b/src/libsystemd/sd_event_add_signal.xml
new file mode 100644
index 0000000000..e98f1d2682
--- /dev/null
+++ b/src/libsystemd/sd_event_add_signal.xml
@@ -0,0 +1,221 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_add_signal" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_add_signal</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>More text</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_add_signal</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_add_signal</refname>
+ <refname>sd_event_source_get_signal</refname>
+ <refname>sd_event_signal_handler_t</refname>
+
+ <refpurpose>Add a UNIX process signal event source to an event
+ loop</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>typedef</token> struct sd_event_source sd_event_source;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_event_signal_handler_t</function>)</funcdef>
+ <paramdef>sd_event_source *<parameter>s</parameter></paramdef>
+ <paramdef>const struct signalfd_siginfo *<parameter>si</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_signal</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>int <parameter>signal</parameter></paramdef>
+ <paramdef>sd_event_signal_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_signal</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_add_signal()</function> adds a new UNIX
+ process signal event source to an event loop. The event loop
+ object is specified in the <parameter>event</parameter> parameter,
+ and the event source object is returned in the
+ <parameter>source</parameter> parameter. The
+ <parameter>signal</parameter> parameter specifies the numeric
+ signal to be handled (see <citerefentry
+ project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>).
+ The <parameter>handler</parameter> parameter must reference a
+ function to call when the signal is received or be
+ <constant>NULL</constant>. The handler function will be passed
+ the <parameter>userdata</parameter> pointer, which may be chosen
+ freely by the caller. The handler also receives a pointer to a
+ <structname>signalfd_siginfo</structname> structure containing
+ information about the received signal. See <citerefentry
+ project='man-pages'><refentrytitle>signalfd</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for further information.</para>
+
+ <para>Only a single handler may be installed for a specific
+ signal. The signal will be unblocked by this call, and must be
+ blocked before this function is called in all threads (using
+ <citerefentry
+ project='man-pages'><refentrytitle>sigprocmask</refentrytitle><manvolnum>2</manvolnum></citerefentry>). If
+ the handler is not specified (<parameter>handler</parameter> is
+ <constant>NULL</constant>), a default handler which causes the
+ program to exit cleanly will be used.</para>
+
+ <para>By default, the event source is enabled permanently
+ (<constant>SD_EVENT_ON</constant>), but this may be changed with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If the handler function returns a negative error code, it will be
+ disabled after the invocation, even if the
+ <constant>SD_EVENT_ON</constant> mode was requested before.
+ </para>
+
+ <para>To destroy an event source object use
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ but note that the event source is only removed from the event loop
+ when all references to the event source are dropped. To make sure
+ an event source does not fire anymore, even if it is still referenced,
+ disable the event source using
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ with <constant>SD_EVENT_OFF</constant>.</para>
+
+ <para>If the second parameter of
+ <function>sd_event_add_signal()</function> is
+ <constant>NULL</constant> no reference to the event source object
+ is returned. In this case the event source is considered
+ "floating", and will be destroyed implicitly when the event loop
+ itself is destroyed.</para>
+
+ <para><function>sd_event_source_get_signal()</function> returns
+ the configured signal number of an event source created previously
+ with <function>sd_event_add_signal()</function>. It takes the
+ event source object as the <parameter>source</parameter>
+ parameter.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these functions return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to allocate an object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An invalid argument has been passed.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EBUSY</constant></term>
+
+ <listitem><para>A handler is already installed for this
+ signal or the signal was not blocked previously.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EDOM</constant></term>
+
+ <listitem><para>The passed event source is not a signal event source.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>signalfd</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_add_time.xml b/src/libsystemd/sd_event_add_time.xml
new file mode 100644
index 0000000000..a2c0d54b56
--- /dev/null
+++ b/src/libsystemd/sd_event_add_time.xml
@@ -0,0 +1,313 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_add_time" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_add_time</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_add_time</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_add_time</refname>
+ <refname>sd_event_source_get_time</refname>
+ <refname>sd_event_source_set_time</refname>
+ <refname>sd_event_source_get_time_accuracy</refname>
+ <refname>sd_event_source_set_time_accuracy</refname>
+ <refname>sd_event_source_get_time_clock</refname>
+ <refname>sd_event_time_handler_t</refname>
+
+ <refpurpose>Add a timer event source to an event loop</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>typedef</token> struct sd_event_source sd_event_source;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_event_time_handler_t</function>)</funcdef>
+ <paramdef>sd_event_source *<parameter>s</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_add_time</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ <paramdef>clockid_t <parameter>clock</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ <paramdef>uint64_t <parameter>accuracy</parameter></paramdef>
+ <paramdef>sd_event_time_handler_t <parameter>handler</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_time</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_time</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_time_accuracy</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_time_accuracy</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_time_clock</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>clockid_t *<parameter>clock</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_add_time()</function> adds a new timer event source to an event loop. The event loop
+ object is specified in the <parameter>event</parameter> parameter, the event source object is returned in the
+ <parameter>source</parameter> parameter. The <parameter>clock</parameter> parameter takes a clock identifier, one
+ of <constant>CLOCK_REALTIME</constant>, <constant>CLOCK_MONOTONIC</constant>, <constant>CLOCK_BOOTTIME</constant>,
+ <constant>CLOCK_REALTIME_ALARM</constant>, or <constant>CLOCK_BOOTTIME_ALARM</constant>. See
+ <citerefentry><refentrytitle>timerfd_create</refentrytitle><manvolnum>2</manvolnum></citerefentry> for details
+ regarding the various types of clocks. The <parameter>usec</parameter> parameter specifies the earliest time, in
+ microseconds (µs), relative to the clock's epoch, when the timer shall be triggered. If a time already in the past
+ is specified (including <constant>0</constant>), this timer source "fires" immediately and is ready to be
+ dispatched. If the paramater is specified as <constant>UINT64_MAX</constant> the timer event will never elapse,
+ which may be used as an alternative to explicitly disabling a timer event source with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>. The
+ <parameter>accuracy</parameter> parameter specifies an additional accuracy value in µs specifying how much the
+ timer event may be delayed. Use <constant>0</constant> to select the default accuracy (250ms). Use 1µs for maximum
+ accuracy. Consider specifying 60000000µs (1min) or larger for long-running events that may be delayed
+ substantially. Picking higher accuracy values allows the system to coalesce timer events more aggressively,
+ improving power efficiency. The <parameter>handler</parameter> parameter shall reference a function to call when
+ the timer elapses. The handler function will be passed the <parameter>userdata</parameter> pointer, which may be
+ chosen freely by the caller. The handler is also passed the configured trigger time, even if it is actually called
+ slightly later, subject to the specified accuracy value, the kernel timer slack (see
+ <citerefentry><refentrytitle>prctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>), and additional
+ scheduling latencies. To query the actual time the handler was called use
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>By default, the timer will elapse once
+ (<constant>SD_EVENT_ONESHOT</constant>), but this may be changed
+ with
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If the handler function returns a negative error code, it will be
+ disabled after the invocation, even if the
+ <constant>SD_EVENT_ON</constant> mode was requested before. Note
+ that a timer event set to <constant>SD_EVENT_ON</constant> will
+ fire continuously unless its configured time is updated using
+ <function>sd_event_source_set_time()</function>.
+ </para>
+
+ <para>To destroy an event source object use
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ but note that the event source is only removed from the event loop
+ when all references to the event source are dropped. To make sure
+ an event source does not fire anymore, even if it is still referenced,
+ disable the event source using
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ with <constant>SD_EVENT_OFF</constant>.</para>
+
+ <para>If the second parameter of
+ <function>sd_event_add_time()</function> is
+ <constant>NULL</constant> no reference to the event source object
+ is returned. In this case the event source is considered
+ "floating", and will be destroyed implicitly when the event loop
+ itself is destroyed.</para>
+
+ <para>If the <parameter>handler</parameter> to
+ <function>sd_event_add_time()</function> is
+ <constant>NULL</constant>, and the event source fires, this will
+ be considered a request to exit the event loop. In this case, the
+ <parameter>userdata</parameter> parameter, cast to an integer, is
+ used for the exit code passed to
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>Use <constant>CLOCK_BOOTTIME_ALARM</constant> and
+ <constant>CLOCK_REALTIME_ALARM</constant> to define event sources
+ that may wake up the system from suspend.</para>
+
+ <para>In order to set up relative timers (that is, relative to the
+ current time), retrieve the current time via
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ add the desired timespan to it, and use the result as
+ the <parameter>usec</parameter> parameter to
+ <function>sd_event_add_time()</function>.</para>
+
+ <para>In order to set up repetitive timers (that is, timers that
+ are triggered in regular intervals), set up the timer normally,
+ for the first invocation. Each time the event handler is invoked,
+ update the timer's trigger time with
+ <citerefentry><refentrytitle>sd_event_source_set_time</refentrytitle><manvolnum>3</manvolnum></citerefentry> for the next timer
+ iteration, and reenable the timer using
+ <function>sd_event_source_set_enabled()</function>. To calculate
+ the next point in time to pass to
+ <function>sd_event_source_set_time()</function>, either use as
+ base the <parameter>usec</parameter> parameter passed to the timer
+ callback, or the timestamp returned by
+ <function>sd_event_now()</function>. In the former case timer
+ events will be regular, while in the latter case the scheduling
+ latency will keep accumulating on the timer.</para>
+
+ <para><function>sd_event_source_get_time()</function> retrieves
+ the configured time value of an event source created
+ previously with <function>sd_event_add_time()</function>. It takes
+ the event source object and a pointer to a variable to store the
+ time in, relative to the selected clock's epoch, in µs.</para>
+
+ <para><function>sd_event_source_set_time()</function> changes the
+ time of an event source created previously with
+ <function>sd_event_add_time()</function>. It takes the event
+ source object and a time relative to the selected clock's epoch,
+ in µs.</para>
+
+ <para><function>sd_event_source_get_time_accuracy()</function>
+ retrieves the configured accuracy value of a event source
+ created previously with <function>sd_event_add_time()</function>. It
+ takes the event source object and a pointer to a variable to store
+ the accuracy in. The accuracy is specified in µs.</para>
+
+ <para><function>sd_event_source_set_time_accuracy()</function>
+ changes the configured accuracy of a timer event source created
+ previously with <function>sd_event_add_time()</function>. It takes
+ the event source object and accuracy, in µs.</para>
+
+ <para><function>sd_event_source_get_time_clock()</function>
+ retrieves the configured clock of a event source created
+ previously with <function>sd_event_add_time()</function>. It takes
+ the event source object and a pointer to a variable to store the
+ clock identifier in.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these functions return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code. </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned values may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to allocate an object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An invalid argument has been passed.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EOPNOTSUPP</constant></term>
+
+ <listitem><para>The selected clock is not supported by the event loop implementation.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EDOM</constant></term>
+
+ <listitem><para>The passed event source is not a timer event source.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_now</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>timerfd_create</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>prctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_exit.xml b/src/libsystemd/sd_event_exit.xml
new file mode 100644
index 0000000000..9846a3eaf4
--- /dev/null
+++ b/src/libsystemd/sd_event_exit.xml
@@ -0,0 +1,163 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_exit" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_exit</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_exit</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_exit</refname>
+ <refname>sd_event_get_exit_code</refname>
+
+ <refpurpose>Ask the event loop to exit</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_exit</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>int <parameter>code</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_get_exit_code</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>int *<parameter>code</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_exit()</function> requests the event loop
+ specified in the <parameter>event</parameter> event loop object to
+ exit. The <parameter>code</parameter> parameter may be any integer
+ value and is returned as-is by
+ <citerefentry><refentrytitle>sd_event_loop</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ after the last event loop iteration. It may also be queried
+ using <function>sd_event_get_exit_code()</function>, see
+ below. </para>
+
+ <para>When exiting is requested the event loop will stop listening
+ for and dispatching regular event sources. Instead it will proceed
+ with executing only event sources registered with
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ in the order defined by their priority. After all exit event
+ sources have been dispatched the event loop is terminated.</para>
+
+ <para>If <function>sd_event_exit()</function> is invoked a second
+ time while the event loop is still processing exit event sources,
+ the exit code stored in the event loop object is updated, but
+ otherwise no further operation is executed.</para>
+
+ <para><function>sd_event_get_exit_code()</function> may be used to
+ query the exit code passed into
+ <function>sd_event_exit()</function> earlier.</para>
+
+ <para>While the full positive and negative integer ranges may be used
+ for the exit code, care should be taken not pick exit codes that
+ conflict with regular exit codes returned by
+ <function>sd_event_loop()</function>, if these exit codes shall be
+ distinguishable.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_exit()</function> and
+ <function>sd_event_get_exit_code()</function> return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>The event loop object or error code pointer are invalid.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop was created in a different process.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop has exited already and all exit handlers are already processed.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>The event loop has not been requested to exit yet.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_get_fd-glib-example.c b/src/libsystemd/sd_event_get_fd-glib-example.c
new file mode 100644
index 0000000000..8f3168d0ea
--- /dev/null
+++ b/src/libsystemd/sd_event_get_fd-glib-example.c
@@ -0,0 +1,68 @@
+/***
+ Copyright 2014 Tom Gundersen
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation files
+ (the "Software"), to deal in the Software without restriction,
+ including without limitation the rights to use, copy, modify, merge,
+ publish, distribute, sublicense, and/or sell copies of the Software,
+ and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+***/
+
+#include <stdlib.h>
+
+typedef struct SDEventSource {
+ GSource source;
+ GPollFD pollfd;
+ sd_event *event;
+} SDEventSource;
+
+static gboolean event_prepare(GSource *source, gint *timeout_) {
+ return sd_event_prepare(((SDEventSource *)source)->event) > 0;
+}
+
+static gboolean event_check(GSource *source) {
+ return sd_event_wait(((SDEventSource *)source)->event, 0) > 0;
+}
+
+static gboolean event_dispatch(GSource *source, GSourceFunc callback, gpointer user_data) {
+ return sd_event_dispatch(((SDEventSource *)source)->event) > 0;
+}
+
+static void event_finalize(GSource *source) {
+ sd_event_unref(((SDEventSource *)source)->event);
+}
+
+static GSourceFuncs event_funcs = {
+ .prepare = event_prepare,
+ .check = event_check,
+ .dispatch = event_dispatch,
+ .finalize = event_finalize,
+};
+
+GSource *g_sd_event_create_source(sd_event *event) {
+ SDEventSource *source;
+
+ source = (SDEventSource *)g_source_new(&event_funcs, sizeof(SDEventSource));
+
+ source->event = sd_event_ref(event);
+ source->pollfd.fd = sd_event_get_fd(event);
+ source->pollfd.events = G_IO_IN | G_IO_HUP | G_IO_ERR;
+
+ g_source_add_poll((GSource *)source, &source->pollfd);
+
+ return (GSource *)source;
+}
diff --git a/src/libsystemd/sd_event_get_fd.xml b/src/libsystemd/sd_event_get_fd.xml
new file mode 100644
index 0000000000..f68752dd0e
--- /dev/null
+++ b/src/libsystemd/sd_event_get_fd.xml
@@ -0,0 +1,140 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_get_fd" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_get_fd</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>More text</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_get_fd</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_get_fd</refname>
+
+ <refpurpose>Obtain a file descriptor to poll for event loop events</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_get_fd</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_get_fd()</function> returns the file
+ descriptor that an event loop object returned by the
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ function uses to wait for events. This file descriptor may itself
+ be polled for
+ <constant>POLLIN</constant>/<constant>EPOLLIN</constant>
+ events. This makes it possible to embed an
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ event loop into another, possibly foreign, event loop.</para>
+
+ <para>The returned file descriptor refers to an <citerefentry
+ project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ object. It is recommended not to alter it by invoking
+ <citerefentry
+ project='man-pages'><refentrytitle>epoll_ctl</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ on it, in order to avoid interference with the event loop's inner
+ logic and assumptions.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_get_fd()</function> returns a
+ non-negative file descriptor. On failure, it returns a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para><parameter>event</parameter> is not a valid
+ pointer to an <structname>sd_event</structname> structure.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <example>
+ <title>Integration in the GLib event loop</title>
+
+ <programlisting><xi:include href="glib-event-glue.c" parse="text" /></programlisting>
+ </example>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>epoll_ctl</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_new.xml b/src/libsystemd/sd_event_new.xml
new file mode 100644
index 0000000000..2c23b00a8c
--- /dev/null
+++ b/src/libsystemd/sd_event_new.xml
@@ -0,0 +1,245 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_new" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_new</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_new</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_new</refname>
+ <refname>sd_event_default</refname>
+ <refname>sd_event_ref</refname>
+ <refname>sd_event_unref</refname>
+ <refname>sd_event_unrefp</refname>
+ <refname>sd_event_get_tid</refname>
+ <refname>sd_event</refname>
+
+ <refpurpose>Acquire and release an event loop object</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>typedef</token> struct sd_event sd_event;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_new</function></funcdef>
+ <paramdef>sd_event **<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_default</function></funcdef>
+ <paramdef>sd_event **<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_event *<function>sd_event_ref</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_event *<function>sd_event_unref</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_event_unrefp</function></funcdef>
+ <paramdef>sd_event **<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_get_tid</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>pid_t *<parameter>tid</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_new()</function> allocates a new event
+ loop object. The event loop object is returned in the
+ <parameter>event</parameter> parameter. After use, drop
+ the returned reference with
+ <function>sd_event_unref()</function>. When the last reference is
+ dropped, the object is freed.</para>
+
+ <para><function>sd_event_default()</function> acquires a reference
+ to the default event loop object of the calling thread, possibly
+ allocating a new object if no default event loop object has been
+ allocated yet for the thread. After use, drop the returned
+ reference with <function>sd_event_unref()</function>. When the
+ last reference is dropped, the event loop is freed. If this
+ function is called while the object returned from a previous call
+ from the same thread is still referenced, the same object is
+ returned again, but the reference is increased by one. It is
+ recommended to use this call instead of
+ <function>sd_event_new()</function> in order to share event loop
+ objects between various components that are dispatched in the same
+ thread. All threads have exactly either zero or one default event loop
+ objects associated, but never more.</para>
+
+ <para>After allocating an event loop object, add event sources to
+ it with
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ and then execute the event loop using
+ <citerefentry><refentrytitle>sd_event_run</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para><function>sd_event_ref()</function> increases the reference
+ count of the specified event loop object by one.</para>
+
+ <para><function>sd_event_unref()</function> decreases the
+ reference count of the specified event loop object by one. If
+ the count hits zero, the object is freed. Note that it
+ is freed regardless of whether it is the default event loop object for a
+ thread or not. This means that allocating an event loop with
+ <function>sd_event_default()</function>, then releasing it, and
+ then acquiring a new one with
+ <function>sd_event_default()</function> will result in two
+ distinct objects. Note that, in order to free an event loop object,
+ all remaining event sources of the event loop also need to be
+ freed as each keeps a reference to it.</para>
+
+ <para><function>sd_event_unrefp()</function> is similar to
+ <function>sd_event_unref()</function> but takes a pointer to a
+ pointer to an <type>sd_event</type> object. This call is useful in
+ conjunction with GCC's and LLVM's <ulink
+ url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up
+ Variable Attribute</ulink>. Note that this function is defined as
+ inline function. Use a declaration like the following,
+ in order to allocate an event loop object that is freed
+ automatically as the code block is left:</para>
+
+ <programlisting>{
+ __attribute__((cleanup(sd_event_unrefp)) sd_event *event = NULL;
+ int r;
+ …
+ r = sd_event_default(&amp;event);
+ if (r &lt; 0)
+ fprintf(stderr, "Failed to allocate event loop: %s\n", strerror(-r));
+ …
+}</programlisting>
+
+ <para><function>sd_event_ref()</function>,
+ <function>sd_event_unref()</function> and
+ <function>sd_event_unrefp()</function> execute no operation if the
+ passed in event loop object is <constant>NULL</constant>.</para>
+
+ <para><function>sd_event_get_tid()</function> retrieves the thread
+ identifier ("TID") of the thread the specified event loop object
+ is associated with. This call is only supported for event loops
+ allocated with <function>sd_event_default()</function>, and
+ returns the identifier for the thread the event loop is the
+ default event loop of. See <citerefentry
+ project='man-pages'><refentrytitle>gettid</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for more information on thread identifiers.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_new()</function> and
+ <function>sd_event_default()</function> return 0 or a positive
+ integer. On failure, they return a negative errno-style error
+ code. <function>sd_event_ref()</function> always returns a pointer
+ to the event loop object passed
+ in. <function>sd_event_unref()</function> always returns
+ <constant>NULL</constant>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to allocate the object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EMFILE</constant></term>
+
+ <listitem><para>The maximum number of event loops has been allocated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para><function>sd_event_get_tid()</function> was
+ invoked on an event loop object that was not allocated with
+ <function>sd_event_default()</function>.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_post</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_run</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>gettid</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_now.xml b/src/libsystemd/sd_event_now.xml
new file mode 100644
index 0000000000..2c83b0bcb5
--- /dev/null
+++ b/src/libsystemd/sd_event_now.xml
@@ -0,0 +1,146 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_now" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_now</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_now</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_now</refname>
+
+ <refpurpose>Retrieve current event loop iteration timestamp</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_now</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>clockid_t <parameter>clock</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_now()</function> returns the time when
+ the most recent event loop iteration began. A timestamp
+ is taken right after returning from the event sleep, and before
+ dispatching any event sources. The <parameter>event</parameter>
+ parameter specifies the event loop object to retrieve the timestamp
+ from. The <parameter>clock</parameter> parameter specifies the clock to
+ retrieve the timestamp for, and is one of
+ <constant>CLOCK_REALTIME</constant> (or equivalently
+ <constant>CLOCK_REALTIME_ALARM</constant>),
+ <constant>CLOCK_MONOTONIC</constant>, or
+ <constant>CLOCK_BOOTTIME</constant> (or equivalently
+ <constant>CLOCK_BOOTTIME_ALARM</constant>), see
+ <citerefentry project='man-pages'><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for more information on the various clocks. The retrieved
+ timestamp is stored in the <parameter>usec</parameter> parameter,
+ in µs since the clock's epoch. If this function is invoked before
+ the first event loop iteration, the current time is returned, as
+ reported by <function>clock_gettime()</function>. To distinguish
+ this case from a regular invocation the return value will be
+ positive, and zero when the returned timestamp refers to an actual
+ event loop iteration.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>If the first event loop iteration has not run yet
+ <function>sd_event_now()</function> writes current time to
+ <parameter>usec</parameter> and returns a positive return value.
+ Otherwise, it will write the requested timestamp to <parameter>usec</parameter>
+ and return 0. On failure, the call returns a negative errno-style
+ error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned values may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An invalid parameter was
+ passed.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EOPNOTSUPP</constant></term>
+
+ <listitem><para>Unsupported clock type.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop object was created in a
+ different process.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_run.xml b/src/libsystemd/sd_event_run.xml
new file mode 100644
index 0000000000..5b68959165
--- /dev/null
+++ b/src/libsystemd/sd_event_run.xml
@@ -0,0 +1,190 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_run" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_run</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Tom</firstname>
+ <surname>Gundersen</surname>
+ <email>teg@jklm.no</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_run</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_run</refname>
+ <refname>sd_event_loop</refname>
+
+ <refpurpose>Run an event loop</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_run</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_loop</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_run()</function> may be used to run a single
+ iteration of the event loop specified in the
+ <parameter>event</parameter> parameter. The function waits until an event to
+ process is available, and dispatches the registered handler for
+ it. The <parameter>usec</parameter> parameter specifies the
+ maximum time (in microseconds) to wait for an event. Use
+ <constant>(uint64_t) -1</constant> to specify an infinite
+ timeout.</para>
+
+ <para><function>sd_event_loop()</function> invokes
+ <function>sd_event_run()</function> in a loop, thus implementing
+ the actual event loop. The call returns as soon as exiting was
+ requested using
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>The event loop object <parameter>event</parameter> is
+ created with
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ Events sources to wait for and their handlers may be registered
+ with
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_post</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+
+ <para>For low-level control of event loop execution, use
+ <citerefentry><refentrytitle>sd_event_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_event_dispatch</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ which are wrapped by <function>sd_event_run()</function>. Along
+ with
+ <citerefentry><refentrytitle>sd_event_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ these functions allow integration of an
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ event loop into foreign event loop implementations.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On failure, these functions return a negative errno-style
+ error code. <function>sd_event_run()</function> returns a
+ positive, non-zero integer if an event source was dispatched, and
+ zero when the specified timeout hit before an event source has
+ seen any event, and hence no event source was
+ dispatched. <function>sd_event_loop()</function> returns the exit
+ code specified when invoking
+ <function>sd_event_exit()</function>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>The <parameter>event</parameter> parameter is
+ invalid or <constant>NULL</constant>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EBUSY</constant></term>
+
+ <listitem><para>The event loop object is not in the right
+ state (see
+ <citerefentry><refentrytitle>sd_event_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for an explanation of possible states).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ </variablelist>
+
+ <para>Other errors are possible, too.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_post</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <ulink url="https://developer.gnome.org/glib/unstable/glib-The-Main-Event-Loop.html">GLib Main Event Loop</ulink>.
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_set_watchdog.xml b/src/libsystemd/sd_event_set_watchdog.xml
new file mode 100644
index 0000000000..cbc5bc0836
--- /dev/null
+++ b/src/libsystemd/sd_event_set_watchdog.xml
@@ -0,0 +1,177 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_set_watchdog" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_set_watchdog</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_set_watchdog</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_set_watchdog</refname>
+ <refname>sd_event_get_watchdog</refname>
+
+ <refpurpose>Enable event loop watchdog support</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_set_watchdog</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>int b</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_get_watchdog</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_set_watchdog()</function> may be used to
+ enable or disable automatic watchdog notification support in the
+ event loop object specified in the <parameter>event</parameter>
+ parameter. Specifically, depending on the <parameter>b</parameter>
+ boolean argument this will make sure the event loop wakes up in
+ regular intervals and sends watchdog notification messages to the
+ service manager, if this was requested by the service
+ manager. Watchdog support is determined with
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ and watchdog messages are sent with
+ <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>. See
+ the <varname>WatchdogSec=</varname> setting in
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details on how to enable watchdog support for a service and
+ the protocol used. The wake-up interval is chosen as half the
+ watchdog timeout declared by the service manager via the
+ <varname>$WATCHDOG_USEC</varname> environment variable. If the
+ service manager did not request watchdog notifications, or if the
+ process was not invoked by the service manager this call with a
+ true <parameter>b</parameter> parameter executes no
+ operation. Passing a false <parameter>b</parameter> parameter will
+ disable the automatic sending of watchdog notification messages if
+ it was enabled before. Newly allocated event loop objects have
+ this feature disabled.</para>
+
+ <para>The first watchdog notification message is sent immediately
+ when <function>set_event_set_watchdog()</function> is invoked with
+ a true <parameter>b</parameter> parameter.</para>
+
+ <para>The watchdog logic is designed to allow the service manager
+ to automatically detect services that ceased processing of
+ incoming events, and thus appear "hung". Watchdog notifications
+ are sent out only at the beginning of each event loop
+ iteration. If an event source dispatch function blocks for an
+ excessively long time and does not return execution to the event
+ loop quickly, this might hence cause the notification message to
+ be delayed, and possibly result in abnormal program termination,
+ as configured in the service unit file.</para>
+
+ <para><function>sd_event_get_watchdog()</function> may be used to
+ determine whether watchdog support was previously requested by a
+ call to <function>sd_event_set_watchdog()</function> with a true
+ <parameter>b</parameter> parameter and successfully
+ enabled.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_set_watchdog()</function> and
+ <function>sd_event_get_watchdog()</function> return a non-zero
+ positive integer if the service manager requested watchdog support
+ and watchdog support was successfully enabled. They return zero if
+ the service manager did not request watchdog support, or if
+ watchdog support was explicitly disabled with a false
+ <parameter>b</parameter> parameter. On failure, they return a
+ negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>The passed event loop object was invalid.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_post</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_get_event.xml b/src/libsystemd/sd_event_source_get_event.xml
new file mode 100644
index 0000000000..2fdbd411bd
--- /dev/null
+++ b/src/libsystemd/sd_event_source_get_event.xml
@@ -0,0 +1,100 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_get_event" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_get_event</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_get_event</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_get_event</refname>
+
+ <refpurpose>Retrieve the event loop of an event source</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>sd_event* <function>sd_event_source_get_event</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_get_event()</function> may be used
+ to retrieve the event loop object the event source object specified
+ as <parameter>source</parameter> is associated with. The event
+ loop object is specified when creating an event source object with
+ calls such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_source_get_event()</function>
+ returns the associated event loop object. On failure, it returns
+ NULL.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_get_pending.xml b/src/libsystemd/sd_event_source_get_pending.xml
new file mode 100644
index 0000000000..7f88bd1b87
--- /dev/null
+++ b/src/libsystemd/sd_event_source_get_pending.xml
@@ -0,0 +1,167 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_get_pending" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_get_pending</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_get_pending</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_get_pending</refname>
+
+ <refpurpose>Determine pending state of event sources</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_pending</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_get_pending()</function> may be
+ used to determine whether the event source object specified as
+ <parameter>source</parameter> has seen events but has not been
+ dispatched yet (and thus is marked "pending").</para>
+
+ <para>Event source objects initially are not marked pending, when
+ they are created with calls such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ with the exception of those created with
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ which are immediately marked pending, and
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for which the "pending" concept is not defined. For details see
+ the respective manual pages.</para>
+
+ <para>In each event loop iteration one event source of those
+ marked pending is dispatched, in the order defined by the event
+ source priority, as set with
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>For I/O event sources, as created with
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ the call
+ <citerefentry><refentrytitle>sd_event_source_get_io_revents</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ may be used to query the type of event pending in more
+ detail.</para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success,
+ <function>sd_event_source_get_pending()</function> returns an
+ integer greater than zero when the event source is marked pending,
+ and zero when the event source is not marked pending. On failure,
+ it returns a negative errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para><parameter>source</parameter> is not a valid
+ pointer to an <structname>sd_event_source</structname>
+ object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EDOM</constant></term>
+
+ <listitem><para><parameter>source</parameter> refers to an
+ event source object created with
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_set_description.xml b/src/libsystemd/sd_event_source_set_description.xml
new file mode 100644
index 0000000000..b9488a622f
--- /dev/null
+++ b/src/libsystemd/sd_event_source_set_description.xml
@@ -0,0 +1,170 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_set_description" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_set_description</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>More text</contrib>
+ <firstname>Zbigniew</firstname>
+ <surname>Jędrzejewski-Szmek</surname>
+ <email>zbyszek@in.waw.pl</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_set_description</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_set_description</refname>
+ <refname>sd_event_source_get_description</refname>
+
+ <refpurpose>Set or retrieve descriptive names of event sources</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_description</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>const char *<parameter>description</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_description</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>const char **<parameter>description</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_set_description()</function> may
+ be used to set an arbitrary descriptive name for the event source
+ object specified as <parameter>source</parameter>. This name will
+ be used in debugging messages generated by
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for this event source, and may be queried using
+ <function>sd_event_source_get_description()</function> for
+ debugging purposes. The <parameter>description</parameter> parameter shall
+ point to a <constant>NUL</constant>-terminated string or be
+ <constant>NULL</constant>. In the latter case, the descriptive
+ name will be unset. The string is copied internally, hence the
+ <parameter>description</parameter> argument is not referenced
+ after the function returns.</para>
+
+ <para><function>sd_event_source_get_description()</function> may
+ be used to query the current descriptive name assigned to the
+ event source object <parameter>source</parameter>. It returns a
+ pointer to the current name in <parameter>description</parameter>,
+ stored in memory internal to the event source. The memory is
+ invalidated when the event source is destroyed or the descriptive
+ name is changed.</para>
+
+ <para>Event source objects generally have no description set when
+ they are created, except for UNIX signal event sources created
+ with
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ whose descriptive name is initialized to the signal's C constant
+ name (e.g. <literal>SIGINT</literal> or
+ <literal>SIGTERM</literal>).</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_source_set_description()</function> and
+ <function>sd_event_source_get_description()</function> return a
+ non-negative integer. On failure, they return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para><parameter>source</parameter> is not a valid
+ pointer to an <structname>sd_event_source</structname>
+ object or the <parameter>description</parameter> argument for
+ <function>sd_event_source_get_description()</function> is
+ <constant>NULL</constant>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory to copy the
+ name.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>No name was set for the event
+ source.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_set_enabled.xml b/src/libsystemd/sd_event_source_set_enabled.xml
new file mode 100644
index 0000000000..6844f29a49
--- /dev/null
+++ b/src/libsystemd/sd_event_source_set_enabled.xml
@@ -0,0 +1,179 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_set_enabled" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_set_enabled</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_set_enabled</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_set_enabled</refname>
+ <refname>sd_event_source_get_enabled</refname>
+ <refname>SD_EVENT_ON</refname>
+ <refname>SD_EVENT_OFF</refname>
+ <refname>SD_EVENT_ONESHOT</refname>
+
+ <refpurpose>Enable or disable event sources</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>enum</token> {
+ <constant>SD_EVENT_OFF</constant> = 0,
+ <constant>SD_EVENT_ON</constant> = 1,
+ <constant>SD_EVENT_ONESHOT</constant> = -1,
+};</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_enabled</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>int <parameter>enabled</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_enabled</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>int *<parameter>enabled</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_set_enabled()</function> may be
+ used to enable or disable the event source object specified as
+ <parameter>source</parameter>. The <parameter>enabled</parameter>
+ parameter takes one of <constant>SD_EVENT_ON</constant> (to
+ enable), <constant>SD_EVENT_OFF</constant> (to disable) or
+ <constant>SD_EVENT_ONESHOT</constant>. If invoked with
+ <constant>SD_EVENT_ONESHOT</constant> the event source will be
+ enabled but automatically reset to
+ <constant>SD_EVENT_OFF</constant> after the event source was
+ dispatched once.</para>
+
+ <para>Event sources that are disabled will not result in event
+ loop wakeups and will not be dispatched, until they are enabled
+ again.</para>
+
+ <para><function>sd_event_source_get_enabled()</function> may be
+ used to query whether the event source object
+ <parameter>source</parameter> is currently enabled or not. It
+ returns the enablement state in
+ <parameter>enabled</parameter>.</para>
+
+ <para>Event source objects are enabled when they are first created
+ with calls such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>. However,
+ depending on the event source type they are enabled continuously
+ (<constant>SD_EVENT_ON</constant>) or only for a single invocation
+ of the event source handler
+ (<constant>SD_EVENT_ONESHOT</constant>). For details see the
+ respective manual pages.</para>
+
+ <para>As event source objects stay active and may be dispatched as
+ long as there is at least one reference to them, in many cases it
+ is a good idea to combine a call to
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ with a prior call to
+ <function>sd_event_source_set_enabled()</function> with
+ <constant>SD_EVENT_OFF</constant>, to ensure the event source is
+ not dispatched again until all other remaining references are dropped.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_event_source_set_enabled()</function> and
+ <function>sd_event_source_get_enabled()</function> return a
+ non-negative integer. On failure, they return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para><parameter>source</parameter> is not a valid
+ pointer to an <structname>sd_event_source</structname>
+ object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_set_prepare.xml b/src/libsystemd/sd_event_source_set_prepare.xml
new file mode 100644
index 0000000000..24861d01d9
--- /dev/null
+++ b/src/libsystemd/sd_event_source_set_prepare.xml
@@ -0,0 +1,171 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_set_prepare" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_set_prepare</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_set_prepare</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_set_prepare</refname>
+
+ <refpurpose>Set a preparation callback for event sources</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_prepare</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>sd_event_handler_t <parameter>callback</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>typedef int (*<function>sd_event_handler_t</function>)</funcdef>
+ <paramdef>sd_event_source *<parameter>s</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_set_prepare()</function> may be
+ used to set a preparation callback for the event source object
+ specified as <parameter>source</parameter>. The callback function
+ specified as <parameter>callback</parameter> will be invoked
+ immediately before the event loop goes to sleep to wait for
+ incoming events. It is invoked with the user data pointer passed
+ when the event source was created. The callback function may be
+ used to reconfigure the precise events to wait for. If the
+ <parameter>callback</parameter> parameter is passed as NULL the
+ callback function is reset. </para>
+
+ <para>Event source objects have no preparation callback associated
+ when they are first created with calls such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Preparation
+ callback functions are supported for all event source types with
+ the exception of those created with
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Preparation
+ callback functions are dispatched in the order indicated by the
+ event source's priority field, as set with
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Preparation
+ callbacks of disabled event sources (see
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>)
+ are not invoked.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success,
+ <function>sd_event_source_set_prepare()</function> returns a
+ non-negative integer. On failure, it returns a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para><parameter>source</parameter> is not a valid
+ pointer to an <structname>sd_event_source</structname>
+ object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EDOM</constant></term>
+
+ <listitem><para>The specified event source has been created
+ with
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para></listitem>
+
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_priority</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_userdata</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_set_priority.xml b/src/libsystemd/sd_event_source_set_priority.xml
new file mode 100644
index 0000000000..8c9b39fe5e
--- /dev/null
+++ b/src/libsystemd/sd_event_source_set_priority.xml
@@ -0,0 +1,189 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_set_priority" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_set_priority</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_set_priority</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_set_priority</refname>
+ <refname>sd_event_source_get_priority</refname>
+ <refname>SD_EVENT_PRIORITY_IMPORTANT</refname>
+ <refname>SD_EVENT_PRIORITY_NORMAL</refname>
+ <refname>SD_EVENT_PRIORITY_IDLE</refname>
+
+ <refpurpose>Set or retrieve the priority of event sources</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>enum</token> {
+ <constant>SD_EVENT_SOURCE_IMPORTANT</constant> = -100,
+ <constant>SD_EVENT_SOURCE_NORMAL</constant> = 0,
+ <constant>SD_EVENT_SOURCE_IDLE</constant> = 100,
+};</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_set_priority</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>int64_t <parameter>priority</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_source_get_priority</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>int64_t *<parameter>priority</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_set_priority()</function> may be
+ used to set the priority for the event source object specified as
+ <parameter>source</parameter>. The priority is specified as an
+ arbitrary signed 64bit integer. The priority is initialized to
+ <constant>SD_EVENT_PRIORITY_NORMAL</constant> (0) when the event
+ source is allocated with a call such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ and may be changed with this call. If multiple event sources have seen events at the same time, they are dispatched in the order indicated by the
+ event sources' priorities. Event sources with smaller priority
+ values are dispatched first. As well-known points of reference,
+ the constants <constant>SD_EVENT_PRIORITY_IMPORTANT</constant>
+ (-100), <constant>SD_EVENT_PRIORITY_NORMAL</constant> (0) and
+ <constant>SD_EVENT_PRIORITY_IDLE</constant> (100) may be used to
+ indicate event sources that shall be dispatched early, normally or
+ late. It is recommended to specify priorities based on these
+ definitions, and relative to them — however, the full 64bit
+ signed integer range is available for ordering event
+ sources.</para>
+
+ <para>Priorities define the order in which event sources that have
+ seen events are dispatched. Care should be taken to ensure that
+ high-priority event sources (those with negative priority values
+ assigned) do not cause starvation of low-priority event sources
+ (those with positive priority values assigned).</para>
+
+ <para>The order in which event sources with the same priority are
+ dispatched is undefined, but the event loop generally tries to
+ dispatch them in the order it learnt about events on them. As the
+ backing kernel primitives do not provide accurate information
+ about the order in which events occurred this is not necessarily
+ reliable. However, it is guaranteed that if events are seen on
+ multiple same-priority event sources at the same time, each one is
+ not dispatched again until all others have been dispatched
+ once. This behaviour guarantees that within each priority
+ particular event sources do not starve or dominate the event
+ loop.</para>
+
+ <para><function>sd_event_source_get_priority()</function> may be
+ used to query the current priority assigned to the event source
+ object <parameter>source</parameter>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success,
+ <function>sd_event_source_set_priority()</function> and
+ <function>sd_event_source_get_priority()</function> return a
+ non-negative integer. On failure, they return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para><parameter>source</parameter> is not a valid
+ pointer to an <structname>sd_event_source</structname>
+ object.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Not enough memory.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_set_userdata.xml b/src/libsystemd/sd_event_source_set_userdata.xml
new file mode 100644
index 0000000000..533d491b13
--- /dev/null
+++ b/src/libsystemd/sd_event_source_set_userdata.xml
@@ -0,0 +1,119 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_set_userdata" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_set_userdata</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_set_userdata</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_set_userdata</refname>
+ <refname>sd_event_source_get_userdata</refname>
+
+ <refpurpose>Set or retrieve user data pointer of event sources</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>void* <function>sd_event_source_set_userdata</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ <paramdef>void *<parameter>userdata</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void* <function>sd_event_source_get_userdata</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_set_userdata()</function> may be
+ used to set an arbitrary user data pointer for the event source
+ object specified as <parameter>source</parameter>. The user data
+ pointer is usually specified when creating an event source object
+ with calls such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ and may be updated with this call. The user data pointer is also
+ passed to all handler callback functions associated with the event
+ source. The <parameter>userdata</parameter> parameter specifies
+ the new user data pointer to set, the function returns the
+ previous user data pointer. Note that <constant>NULL</constant> is
+ a valid user data pointer.</para>
+
+ <para><function>sd_event_source_get_userdata()</function> may be
+ used to query the current user data pointer assigned to the event
+ source object <parameter>source</parameter>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success,
+ <function>sd_event_source_set_userdata()</function> and
+ <function>sd_event_source_get_userdata()</function> return the
+ previously set user data pointer. On failure, they return
+ NULL.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_source_unref.xml b/src/libsystemd/sd_event_source_unref.xml
new file mode 100644
index 0000000000..2c4d450763
--- /dev/null
+++ b/src/libsystemd/sd_event_source_unref.xml
@@ -0,0 +1,142 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_source_unref" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_source_unref</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_source_unref</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_source_unref</refname>
+ <refname>sd_event_source_unrefp</refname>
+ <refname>sd_event_source_ref</refname>
+
+ <refpurpose>Increase or decrease event source reference counters</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>sd_event_source* <function>sd_event_source_unref</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_event_source_unrefp</function></funcdef>
+ <paramdef>sd_event_source **<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_event_source* <function>sd_event_source_ref</function></funcdef>
+ <paramdef>sd_event_source *<parameter>source</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_event_source_unref()</function> may be used to
+ decrement by one the reference counter of the event source object
+ specified as <parameter>source</parameter>. The reference counter
+ is initially set to one, when the event source is created with calls
+ such as
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>. When
+ the reference counter reaches zero it is removed from its event loop
+ object and destroyed.</para>
+
+ <para><function>sd_event_source_unrefp()</function> is similar to
+ <function>sd_event_source_unref()</function> but takes a pointer to a
+ pointer to an <type>sd_event_source</type> object. This call is useful in
+ conjunction with GCC's and LLVM's <ulink
+ url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up
+ Variable Attribute</ulink>. Note that this function is defined as
+ inline function.</para>
+
+ <para><function>sd_event_source_ref()</function> may be used
+ to increase by one the reference counter of the event source object
+ specified as <parameter>source</parameter>.</para>
+
+ <para><function>sd_event_source_unref()</function>,
+ <function>sd_bus_creds_unrefp()</function> and
+ <function>sd_bus_creds_ref()</function> execute no operation if
+ the passed event source object is
+ <constant>NULL</constant>.</para>
+
+ <para>Note that event source objects stay alive and may be
+ dispatched as long as they have a reference counter greater than
+ zero. In order to drop a reference of an event source and make
+ sure the associated event source handler function is not called
+ anymore it is recommended to combine a call of
+ <function>sd_event_source_unref()</function> with a prior call to
+ <function>sd_event_source_set_enabled()</function> with
+ <constant>SD_EVENT_OFF</constant>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_event_source_unref()</function> always returns
+ <constant>NULL</constant>.
+ <function>sd_event_source_ref()</function> always returns the
+ event source object passed in.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_child</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_event_wait.xml b/src/libsystemd/sd_event_wait.xml
new file mode 100644
index 0000000000..f2aea00e98
--- /dev/null
+++ b/src/libsystemd/sd_event_wait.xml
@@ -0,0 +1,346 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2015 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_event_wait" xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_event_wait</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Tom</firstname>
+ <surname>Gundersen</surname>
+ <email>teg@jklm.no</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_event_wait</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_event_wait</refname>
+ <refname>sd_event_prepare</refname>
+ <refname>sd_event_dispatch</refname>
+ <refname>sd_event_get_state</refname>
+ <refname>SD_EVENT_INITIAL</refname>
+ <refname>SD_EVENT_PREPARING</refname>
+ <refname>SD_EVENT_ARMED</refname>
+ <refname>SD_EVENT_PENDING</refname>
+ <refname>SD_EVENT_RUNNING</refname>
+ <refname>SD_EVENT_EXITING</refname>
+ <refname>SD_EVENT_FINISHED</refname>
+
+ <refpurpose>Low-level event loop operations</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-event.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo><token>enum</token> {
+ <constant>SD_EVENT_INITIAL</constant>,
+ <constant>SD_EVENT_PREPARING</constant>,
+ <constant>SD_EVENT_ARMED</constant>,
+ <constant>SD_EVENT_PENDING</constant>,
+ <constant>SD_EVENT_RUNNING</constant>,
+ <constant>SD_EVENT_EXITING</constant>,
+ <constant>SD_EVENT_FINISHED</constant>,
+};</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_prepare</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_wait</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_dispatch</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_event_get_state</function></funcdef>
+ <paramdef>sd_event *<parameter>event</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>The low-level <function>sd_event_prepare()</function>,
+ <function>sd_event_wait()</function> and
+ <function>sd_event_dispatch()</function> functions may be used to
+ execute specific phases of an event loop. See
+ <citerefentry><refentrytitle>sd_event_run</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_event_loop</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for higher-level functions that execute individual but complete
+ iterations of an event loop or run it continuously.</para>
+
+ <para><function>sd_event_prepare()</function> checks for pending
+ events and arms necessary timers. If any events are ready to be
+ processed ("pending"), it returns a positive, non-zero value, and the caller
+ should process these events with
+ <function>sd_event_dispatch()</function>.</para>
+
+ <para><function>sd_event_dispatch()</function> dispatches the
+ highest priority event source that has a pending event. On
+ success, <function>sd_event_dispatch()</function> returns either
+ zero, which indicates that no further event sources may be
+ dispatched and exiting of the event loop was requested via
+ <citerefentry><refentrytitle>sd_event_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>;
+ or a positive non-zero value, which means that an event source was
+ dispatched and the loop returned to its initial state, and the
+ caller should initiate the next event loop iteration by invoking
+ <function>sd_event_prepare()</function> again.</para>
+
+ <para>In case <function>sd_event_prepare()</function> returned
+ zero, <function>sd_event_wait()</function> should be called to
+ wait for further events or a timeout. If any events are ready to
+ be processed, it returns a positive, non-zero value, and the
+ events should be dispatched with
+ <function>sd_event_dispatch()</function>. Otherwise, the event
+ loop returned to its initial state and the next event loop
+ iteration should be initiated by invoking
+ <function>sd_event_prepare()</function> again.</para>
+
+ <para><function>sd_event_get_state()</function> may be used to
+ determine the state the event loop is currently in. It returns one
+ of the states described below.</para>
+
+ <para>All four functions take, as the first argument, the event
+ loop object <parameter>event</parameter> that has been created
+ with <function>sd_event_new()</function>. The timeout for
+ <function>sd_event_wait()</function> is specified in
+ <parameter>usec</parameter> in milliseconds. <constant>(uint64_t)
+ -1</constant> may be used to specify an infinite timeout.</para>
+</refsect1>
+
+ <refsect1>
+ <title>State Machine</title>
+
+ <para>The event loop knows the following states, that may be
+ queried with <function>sd_event_get_state()</function>.</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>SD_EVENT_INITIAL</constant></term>
+
+ <listitem><para>The initial state the event loop is in,
+ before each event loop iteration. Use
+ <function>sd_event_prepare()</function> to transition the
+ event loop into the <constant>SD_EVENT_ARMED</constant> or
+ <constant>SD_EVENT_PENDING</constant> states.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>SD_EVENT_PREPARING</constant></term>
+
+ <listitem><para>An event source is currently being prepared,
+ i.e. the preparation handler is currently being executed, as
+ set with
+ <citerefentry><refentrytitle>sd_event_set_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>. This
+ state is only seen in the event source preparation handler
+ that is invoked from the
+ <function>sd_event_prepare()</function> call and is
+ immediately followed by <constant>SD_EVENT_ARMED</constant> or
+ <constant>SD_EVENT_PENDING</constant>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>SD_EVENT_ARMED</constant></term>
+
+ <listitem><para><function>sd_event_prepare()</function> has
+ been called and no event sources were ready to be
+ dispatched. Use <function>sd_event_wait()</function> to wait
+ for new events, and transition into
+ <constant>SD_EVENT_PENDING</constant> or back into
+ <constant>SD_EVENT_INITIAL</constant>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>SD_EVENT_PENDING</constant></term>
+
+ <listitem><para><function>sd_event_prepare()</function> or
+ <function>sd_event_wait()</function> have been called and
+ there were event sources with events pending. Use
+ <function>sd_event_dispatch()</function> to dispatch the
+ highest priority event source and transition back to
+ <constant>SD_EVENT_INITIAL</constant>, or
+ <constant>SD_EVENT_FINISHED</constant>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>SD_EVENT_RUNNING</constant></term>
+
+ <listitem><para>A regular event source is currently being
+ dispatched. This state is only seen in the event source
+ handler that is invoked from the
+ <function>sd_event_dispatch()</function> call, and is
+ immediately followed by <constant>SD_EVENT_INITIAL</constant>
+ or <constant>SD_EVENT_FINISHED</constant> as soon the event
+ source handler returns. Note that during dispatching of exit
+ event sources the <constant>SD_EVENT_EXITING</constant> state
+ is seen instead.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>SD_EVENT_EXITING</constant></term>
+
+ <listitem><para>Similar to
+ <constant>SD_EVENT_RUNNING</constant> but is the state in
+ effect while dispatching exit event sources. It is followed by
+ <constant>SD_EVENT_INITIAL</constant> or
+ <constant>SD_EVENT_FINISHED</constant> as soon as the event
+ handler returns.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>SD_EVENT_FINISHED</constant></term>
+
+ <listitem><para>The event loop has exited. All exit event
+ sources have run. If the event loop is in this state it serves
+ no purpose anymore, and should be freed.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+
+ <para>A simplified flow chart of the states and the calls to
+ transition between them is shown below. Note that
+ <constant>SD_EVENT_PREPARING</constant>,
+ <constant>SD_EVENT_RUNNING</constant> and
+ <constant>SD_EVENT_EXITING</constant> are not shown here.</para>
+
+ <programlisting>
+ INITIAL -&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---&lt;---\
+ | |
+ | ^
+ | |
+ v ret == 0 |
+ sd_event_prepare() &gt;---&gt;---&gt;---&gt;---&gt;- ARMED |
+ | | ^
+ | ret > 0 | |
+ | | |
+ v v ret == 0 |
+ PENDING &lt;---&lt;---&lt;---&lt;---&lt;---&lt; sd_event_wait() &gt;---&gt;---&gt;--+
+ | ret > 0 ^
+ | |
+ | |
+ v |
+ sd_event_dispatch() &gt;---&gt;---&gt;---&gt;---&gt;---&gt;---&gt;---&gt;---&gt;---&gt;---&gt;/
+ | ret > 0
+ | ret == 0
+ |
+ v
+ FINISHED
+ </programlisting>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these functions return 0 or a positive integer.
+ On failure, they return a negative errno-style error code. In case
+ of <function>sd_event_prepare()</function> and
+ <function>sd_event_wait()</function>, a positive, non-zero return
+ code indicates that events are ready to be processed and zero
+ indicates that no events are ready. In case of
+ <function>sd_event_dispatch()</function>, a positive, non-zero
+ return code indicates that the event loop returned to its initial
+ state and zero indicates the event loop has
+ exited. <function>sd_event_get_state()</function> returns a
+ positive or zero state on success.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>The <parameter>event</parameter> parameter is
+ invalid or <constant>NULL</constant>.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EBUSY</constant></term>
+
+ <listitem><para>The event loop object is not in the right
+ state.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ESTALE</constant></term>
+
+ <listitem><para>The event loop is already terminated.</para></listitem>
+
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ECHILD</constant></term>
+
+ <listitem><para>The event loop has been created in a different process.</para></listitem>
+
+ </varlistentry>
+
+ </variablelist>
+
+ <para>Other errors are possible, too.</para>
+ </refsect1>
+
+ <xi:include href="libsystemd-pkgconfig.xml" />
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_io</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_time</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_signal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_defer</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_exit</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_add_post</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_run</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_get_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_source_set_prepare</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_get_seats.xml b/src/libsystemd/sd_get_seats.xml
new file mode 100644
index 0000000000..37eb3fc894
--- /dev/null
+++ b/src/libsystemd/sd_get_seats.xml
@@ -0,0 +1,164 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_get_seats" conditional='HAVE_PAM'>
+
+ <refentryinfo>
+ <title>sd_get_seats</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_get_seats</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_get_seats</refname>
+ <refname>sd_get_sessions</refname>
+ <refname>sd_get_uids</refname>
+ <refname>sd_get_machine_names</refname>
+ <refpurpose>Determine available seats, sessions, logged in users and virtual machines/containers</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_get_seats</function></funcdef>
+ <paramdef>char ***<parameter>seats</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_get_sessions</function></funcdef>
+ <paramdef>char ***<parameter>sessions</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_get_uids</function></funcdef>
+ <paramdef>uid_t **<parameter>users</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_get_machine_names</function></funcdef>
+ <paramdef>char ***<parameter>machines</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_get_seats()</function> may be used to determine
+ all currently available local seats. Returns a
+ <constant>NULL</constant> terminated array of seat identifiers.
+ The returned array and all strings it references need to be freed
+ with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use. Note that instead of an empty array
+ <constant>NULL</constant> may be returned and should be considered
+ equivalent to an empty array.</para>
+
+ <para>Similarly, <function>sd_get_sessions()</function> may be
+ used to determine all current login sessions.</para>
+
+ <para>Similarly, <function>sd_get_uids()</function> may be used to
+ determine all Unix users who currently have login sessions.</para>
+
+ <para>Similarly, <function>sd_get_machine_names()</function> may
+ be used to determine all current virtual machines and containers
+ on the system.</para>
+
+ <para>Note that the returned lists are not sorted and in an
+ undefined order.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_get_seats()</function>,
+ <function>sd_get_sessions()</function>,
+ <function>sd_get_uids()</function> and
+ <function>sd_get_machine_names()</function> return the number of
+ entries in the arrays. On failure, these calls return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_get_seats()</function>,
+ <function>sd_get_sessions()</function>,
+ <function>sd_get_uids()</function> and
+ <function>sd_get_machine_names()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_session_get_seat</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_id128_get_machine.xml b/src/libsystemd/sd_id128_get_machine.xml
new file mode 100644
index 0000000000..2ad1f8f728
--- /dev/null
+++ b/src/libsystemd/sd_id128_get_machine.xml
@@ -0,0 +1,129 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_id128_get_machine">
+
+ <refentryinfo>
+ <title>sd_id128_get_machine</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_id128_get_machine</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_id128_get_machine</refname>
+ <refname>sd_id128_get_boot</refname>
+ <refpurpose>Retrieve 128-bit IDs</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-id128.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_id128_get_machine</function></funcdef>
+ <paramdef>sd_id128_t *<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_id128_get_boot</function></funcdef>
+ <paramdef>sd_id128_t *<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_id128_get_machine()</function> returns the
+ machine ID of the executing host. This reads and parses the
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ file. This function caches the machine ID internally to make
+ retrieving the machine ID a cheap operation.</para>
+
+ <para><function>sd_id128_get_boot()</function> returns the boot ID
+ of the executing kernel. This reads and parses the
+ <filename>/proc/sys/kernel/random/boot_id</filename> file exposed
+ by the kernel. It is randomly generated early at boot and is
+ unique for every running kernel instance. See
+ <citerefentry project='man-pages'><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
+ for more information. This function also internally caches the
+ returned ID to make this call a cheap operation.</para>
+
+ <para>Note that <function>sd_id128_get_boot()</function> always
+ returns a UUID v4 compatible ID.
+ <function>sd_id128_get_machine()</function> will also return a
+ UUID v4-compatible ID on new installations but might not on older.
+ It is possible to convert the machine ID into a UUID v4-compatible
+ one. For more information, see
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+
+ <para>For more information about the <literal>sd_id128_t</literal>
+ type see
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The two calls return 0 on success (in which case
+ <parameter>ret</parameter> is filled in), or a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_id128_get_machine()</function> and
+ <function>sd_id128_get_boot()</function> interfaces are available
+ as a shared library, which can be compiled and linked to with the
+ <literal>libsystemd</literal> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_randomize</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_id128_randomize.xml b/src/libsystemd/sd_id128_randomize.xml
new file mode 100644
index 0000000000..ab449d2937
--- /dev/null
+++ b/src/libsystemd/sd_id128_randomize.xml
@@ -0,0 +1,114 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_id128_randomize">
+
+ <refentryinfo>
+ <title>sd_id128_randomize</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_id128_randomize</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_id128_randomize</refname>
+ <refpurpose>Generate 128-bit IDs</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-id128.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_id128_randomize</function></funcdef>
+ <paramdef>sd_id128_t *<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_id128_randomize()</function> generates a new
+ randomized 128-bit ID and returns it in
+ <parameter>ret</parameter>. Every invocation returns a new
+ randomly generated ID. This uses the
+ <filename>/dev/urandom</filename> kernel random number
+ generator.</para>
+
+ <para>Note that <function>sd_id128_randomize()</function> always
+ returns a UUID v4-compatible ID.</para>
+
+ <para>For more information about the <literal>sd_id128_t</literal>
+ type, see
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para><citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s
+ <option>--new-id</option> option may be used as a command line
+ front-end for <function>sd_id128_randomize()</function>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The call returns 0 on success (in which case
+ <parameter>ret</parameter> is filled in), or a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_id128_randomize()</function> interface is
+ available as a shared library, which can be compiled and linked to
+ with the
+ <literal>libsystemd</literal> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_id128_to_string.xml b/src/libsystemd/sd_id128_to_string.xml
new file mode 100644
index 0000000000..e70c80892e
--- /dev/null
+++ b/src/libsystemd/sd_id128_to_string.xml
@@ -0,0 +1,132 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_id128_to_string">
+
+ <refentryinfo>
+ <title>sd_id128_to_string</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_id128_to_string</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_id128_to_string</refname>
+ <refname>sd_id128_from_string</refname>
+ <refpurpose>Format or parse 128-bit IDs as strings</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-id128.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>char *<function>sd_id128_to_string</function></funcdef>
+ <paramdef>sd_id128_t <parameter>id</parameter>, char <parameter>s</parameter>[33]</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_id128_from_string</function></funcdef>
+ <paramdef>const char *<parameter>s</parameter>, sd_id128_t *<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_id128_to_string()</function> formats a 128-bit
+ ID as a character string. It expects the ID and a string array
+ capable of storing 33 characters. The ID will be formatted as 32
+ lowercase hexadecimal digits and be terminated by a
+ <constant>NUL</constant> byte.</para>
+
+ <para><function>sd_id128_from_string()</function> implements the
+ reverse operation: it takes a 33 character string with 32
+ hexadecimal digits (either lowercase or uppercase, terminated by
+ <constant>NUL</constant>) and parses them back into a 128-bit ID
+ returned in <parameter>ret</parameter>. Alternatively, this call
+ can also parse a 37-character string with a 128-bit ID formatted
+ as RFC UUID.</para>
+
+ <para>For more information about the <literal>sd_id128_t</literal>
+ type see
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ Note that these calls operate the same way on all architectures,
+ i.e. the results do not depend on endianness.</para>
+
+ <para>When formatting a 128-bit ID into a string, it is often
+ easier to use a format string for
+ <citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ This is easily done using the
+ <function>SD_ID128_FORMAT_STR</function> and
+ <function>SD_ID128_FORMAT_VAL()</function> macros. For more
+ information see
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_id128_to_string()</function> always succeeds
+ and returns a pointer to the string array passed in.
+ <function>sd_id128_from_string</function> returns 0 on success, in
+ which case <parameter>ret</parameter> is filled in, or a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_id128_to_string()</function> and
+ <function>sd_id128_from_string()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <literal>libsystemd</literal> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_is_fifo.xml b/src/libsystemd/sd_is_fifo.xml
new file mode 100644
index 0000000000..627cb87aaf
--- /dev/null
+++ b/src/libsystemd/sd_is_fifo.xml
@@ -0,0 +1,200 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_is_fifo"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_is_fifo</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_is_fifo</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_is_fifo</refname>
+ <refname>sd_is_socket</refname>
+ <refname>sd_is_socket_inet</refname>
+ <refname>sd_is_socket_unix</refname>
+ <refname>sd_is_mq</refname>
+ <refname>sd_is_special</refname>
+ <refpurpose>Check the type of a file descriptor</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-daemon.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_is_fifo</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_is_socket</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>family</parameter></paramdef>
+ <paramdef>int <parameter>type</parameter></paramdef>
+ <paramdef>int <parameter>listening</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_is_socket_inet</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>family</parameter></paramdef>
+ <paramdef>int <parameter>type</parameter></paramdef>
+ <paramdef>int <parameter>listening</parameter></paramdef>
+ <paramdef>uint16_t <parameter>port</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_is_socket_unix</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>type</parameter></paramdef>
+ <paramdef>int <parameter>listening</parameter></paramdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ <paramdef>size_t <parameter>length</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_is_mq</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_is_special</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_is_fifo()</function> may be called to check
+ whether the specified file descriptor refers to a FIFO or pipe. If
+ the <parameter>path</parameter> parameter is not
+ <constant>NULL</constant>, it is checked whether the FIFO is bound
+ to the specified file system path.</para>
+
+ <para><function>sd_is_socket()</function> may be called to check
+ whether the specified file descriptor refers to a socket. If the
+ <parameter>family</parameter> parameter is not
+ <constant>AF_UNSPEC</constant>, it is checked whether the socket
+ is of the specified family (AF_UNIX, <constant>AF_INET</constant>,
+ ...). If the <parameter>type</parameter> parameter is not 0, it is
+ checked whether the socket is of the specified type
+ (<constant>SOCK_STREAM</constant>,
+ <constant>SOCK_DGRAM</constant>, ...). If the
+ <parameter>listening</parameter> parameter is positive, it is
+ checked whether the socket is in accepting mode, i.e.
+ <function>listen()</function> has been called for it. If
+ <parameter>listening</parameter> is 0, it is checked whether the
+ socket is not in this mode. If the parameter is negative, no such
+ check is made. The <parameter>listening</parameter> parameter
+ should only be used for stream sockets and should be set to a
+ negative value otherwise.</para>
+
+ <para><function>sd_is_socket_inet()</function> is similar to
+ <function>sd_is_socket()</function>, but optionally checks the
+ IPv4 or IPv6 port number the socket is bound to, unless
+ <parameter>port</parameter> is zero. For this call
+ <parameter>family</parameter> must be passed as either
+ <constant>AF_UNSPEC</constant>, <constant>AF_INET</constant>, or
+ <constant>AF_INET6</constant>.</para>
+
+ <para><function>sd_is_socket_unix()</function> is similar to
+ <function>sd_is_socket()</function> but optionally checks the
+ <constant>AF_UNIX</constant> path the socket is bound to, unless
+ the <parameter>path</parameter> parameter is
+ <constant>NULL</constant>. For normal file system
+ <constant>AF_UNIX</constant> sockets, set the
+ <parameter>length</parameter> parameter to 0. For Linux abstract
+ namespace sockets, set the <parameter>length</parameter> to the
+ size of the address, including the initial 0 byte, and set the
+ <parameter>path</parameter> to the initial 0 byte of the socket
+ address.</para>
+
+ <para><function>sd_is_mq()</function> may be called to check
+ whether the specified file descriptor refers to a POSIX message
+ queue. If the <parameter>path</parameter> parameter is not
+ <constant>NULL</constant>, it is checked whether the message queue
+ is bound to the specified name.</para>
+
+ <para><function>sd_is_special()</function> may be called to check
+ whether the specified file descriptor refers to a special file. If
+ the <parameter>path</parameter> parameter is not
+ <constant>NULL</constant>, it is checked whether the file
+ descriptor is bound to the specified file name. Special files in
+ this context are character device nodes and files in
+ <filename>/proc</filename> or <filename>/sys</filename>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On failure, these calls return a negative errno-style error
+ code. If the file descriptor is of the specified type and bound to
+ the specified address, a positive return value is returned,
+ otherwise zero.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
+
+ <para>Internally, these function use a combination of
+ <filename>fstat()</filename> and
+ <filename>getsockname()</filename> to check the file descriptor
+ type and where it is bound to.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_add_match.xml b/src/libsystemd/sd_journal_add_match.xml
new file mode 100644
index 0000000000..98415d53fd
--- /dev/null
+++ b/src/libsystemd/sd_journal_add_match.xml
@@ -0,0 +1,216 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_add_match">
+
+ <refentryinfo>
+ <title>sd_journal_add_match</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_add_match</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_add_match</refname>
+ <refname>sd_journal_add_disjunction</refname>
+ <refname>sd_journal_add_conjunction</refname>
+ <refname>sd_journal_flush_matches</refname>
+ <refpurpose>Add or remove entry matches</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_add_match</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const void *<parameter>data</parameter></paramdef>
+ <paramdef>size_t <parameter>size</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_add_disjunction</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_add_conjunction</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_journal_flush_matches</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_add_match()</function> adds a match by
+ which to filter the entries of the journal file. Matches applied
+ with this call will filter what can be iterated through and read
+ from the journal file via calls like
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ Parameter <parameter>data</parameter> must be of the form
+ <literal><replaceable>FIELD</replaceable>=<replaceable>value</replaceable></literal>,
+ where the <replaceable>FIELD</replaceable> part is a short uppercase string consisting only
+ of 0–9, A–Z and the underscore; it may not begin with two underscores or be the empty
+ string. The <replaceable>value</replaceable> part may be anything, including binary. Parameter
+ <parameter>size</parameter> specifies the number of bytes in <parameter>data</parameter>
+ (i.e. the length of <replaceable>FIELD</replaceable>, plus one, plus the length of
+ <replaceable>value</replaceable>). Parameter <parameter>size</parameter> may also be
+ specified as <constant>0</constant>, in which case <parameter>data</parameter>
+ must be a <constant>NUL</constant>-terminated string, and the bytes before the terminating
+ zero are used as the match.</para>
+
+ <para>If a match is applied, only entries with this field set
+ will be iterated. Multiple matches may be active at the same time:
+ If they apply to different fields, only entries with both fields
+ set like this will be iterated. If they apply to the same fields,
+ only entries where the field takes one of the specified values
+ will be iterated. Well known fields are documented in
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+ Whenever a new match is added the current entry position is reset,
+ and
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ (or a similar call) needs to be called before entries can be read
+ again.</para>
+
+ <para><function>sd_journal_add_disjunction()</function> may be
+ used to insert a disjunction (i.e. logical OR) in the match list.
+ If this call is invoked, all previously added matches since the
+ last invocation of
+ <function>sd_journal_add_disjunction()</function> or
+ <function>sd_journal_add_conjunction()</function> are combined in
+ an OR with all matches added afterwards, until
+ <function>sd_journal_add_disjunction()</function> or
+ <function>sd_journal_add_conjunction()</function> is invoked again
+ to begin the next OR or AND term. </para>
+
+ <para><function>sd_journal_add_conjunction()</function> may be
+ used to insert a conjunction (i.e. logical AND) in the match list.
+ If this call is invoked, all previously added matches since the
+ last invocation of
+ <function>sd_journal_add_conjunction()</function> are combined in
+ an AND with all matches added afterwards, until
+ <function>sd_journal_add_conjunction()</function> is invoked again
+ to begin the next AND term. The combination of
+ <function>sd_journal_add_match()</function>,
+ <function>sd_journal_add_disjunction()</function> and
+ <function>sd_journal_add_conjunction()</function> may be used to
+ build complex search terms, even though full logical expressions
+ are not available. Note that
+ <function>sd_journal_add_conjunction()</function> operates one
+ level 'higher' than
+ <function>sd_journal_add_disjunction()</function>. It is hence
+ possible to build an expression of AND terms, consisting of OR
+ terms, consisting of AND terms, consisting of OR terms of matches
+ (the latter OR expression is implicitly created for matches with
+ the same field name, see above).</para>
+
+ <para><function>sd_journal_flush_matches()</function> may be used
+ to flush all matches, disjunction and conjunction terms again.
+ After this call all filtering is removed and all entries in the
+ journal will be iterated again.</para>
+
+ <para>Note that filtering via matches only applies to the way the
+ journal is read, it has no effect on storage on disk.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_add_match()</function>,
+ <function>sd_journal_add_disjunction()</function> and
+ <function>sd_journal_add_conjunction()</function>
+ return 0 on success or a negative errno-style error
+ code. <function>sd_journal_flush_matches()</function>
+ returns nothing.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_add_match()</function>,
+ <function>sd_journal_add_disjunction()</function>,
+ <function>sd_journal_add_conjunction()</function> and
+ <function>sd_journal_flush_matches()</function>
+ interfaces are available as a shared library, which can
+ be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>The following example adds matches to a journal context
+ object to iterate only through messages generated by the Avahi
+ service at the four error log levels, plus all messages of the
+ message ID 03bb1dab98ab4ecfbf6fff2738bdd964 coming from any
+ service (this example lacks the necessary error checking):</para>
+
+ <programlisting>...
+int add_matches(sd_journal *j) {
+ sd_journal_add_match(j, "_SYSTEMD_UNIT=avahi-daemon.service", 0);
+ sd_journal_add_match(j, "PRIORITY=0", 0);
+ sd_journal_add_match(j, "PRIORITY=1", 0);
+ sd_journal_add_match(j, "PRIORITY=2", 0);
+ sd_journal_add_match(j, "PRIORITY=3", 0);
+ sd_journal_add_disjunction(j);
+ sd_journal_add_match(j, "MESSAGE_ID=03bb1dab98ab4ecfbf6fff2738bdd964", 0);
+}</programlisting>
+
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_enumerate_fields.xml b/src/libsystemd/sd_journal_enumerate_fields.xml
new file mode 100644
index 0000000000..fa5884106b
--- /dev/null
+++ b/src/libsystemd/sd_journal_enumerate_fields.xml
@@ -0,0 +1,161 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2016 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_enumerate_fields">
+
+ <refentryinfo>
+ <title>sd_journal_enumerate_fields</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_enumerate_fields</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_enumerate_fields</refname>
+ <refname>sd_journal_restart_fields</refname>
+ <refname>SD_JOURNAL_FOREACH_FIELD</refname>
+ <refpurpose>Read used field names from the journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_enumerate_fields</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const char **<parameter>field</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_journal_restart_fields</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef><function>SD_JOURNAL_FOREACH_FIELD</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const char *<parameter>field</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_enumerate_fields()</function> may be used to iterate through all field names used in the
+ opened journal files. On each invocation the next field name is returned. The order of the returned field names is
+ not defined. It takes two arguments: the journal context object, plus a pointer to a constant string pointer where
+ the field name is stored in. The returned data is in a read-only memory map and is only valid until the next
+ invocation of <function>sd_journal_enumerate_fields()</function>. Note that this call is subject to the data field
+ size threshold as controlled by <function>sd_journal_set_data_threshold()</function>.</para>
+
+ <para><function>sd_journal_restart_fields()</function> resets the field name enumeration index to the beginning of
+ the list. The next invocation of <function>sd_journal_enumerate_fields()</function> will return the first field
+ name again.</para>
+
+ <para>The <function>SD_JOURNAL_FOREACH_FIELD()</function> macro may be used as a handy wrapper around
+ <function>sd_journal_restart_fields()</function> and <function>sd_journal_enumerate_fields()</function>.</para>
+
+ <para>These functions currently are not influenced by matches set with <function>sd_journal_add_match()</function>
+ but this might change in a later version of this software.</para>
+
+ <para>To retrieve the possible values a specific field can take use
+ <citerefentry><refentrytitle>sd_journal_query_unique</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_enumerate_fields()</function> returns a
+ positive integer if the next field name has been read, 0 when no
+ more field names are known, or a negative errno-style error code.
+ <function>sd_journal_restart_fields()</function> returns
+ nothing.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_enumerate_fields()</function> and <function>sd_journal_restart_fields()</function>
+ interfaces are available as a shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>Use the <function>SD_JOURNAL_FOREACH_FIELD</function> macro to iterate through all field names in use in the
+ current journal.</para>
+
+ <programlisting>#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;systemd/sd-journal.h&gt;
+
+int main(int argc, char *argv[]) {
+ sd_journal *j;
+ const char *field;
+ int r;
+
+ r = sd_journal_open(&amp;j, SD_JOURNAL_LOCAL_ONLY);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to open journal: %s\n", strerror(-r));
+ return 1;
+ }
+ SD_JOURNAL_FOREACH_FIELD(j, field)
+ printf("%s\n", field);
+ sd_journal_close(j);
+ return 0;
+}</programlisting>
+
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_query_unique</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_add_match</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_catalog.xml b/src/libsystemd/sd_journal_get_catalog.xml
new file mode 100644
index 0000000000..c19eb11b20
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_catalog.xml
@@ -0,0 +1,137 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_catalog">
+
+ <refentryinfo>
+ <title>sd_journal_get_catalog</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_catalog</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_catalog</refname>
+ <refname>sd_journal_get_catalog_for_message_id</refname>
+ <refpurpose>Retrieve message catalog entry</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_catalog</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>char **<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_catalog_for_message_id</function></funcdef>
+ <paramdef>sd_id128_t <parameter>id</parameter></paramdef>
+ <paramdef>char **<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_catalog()</function> retrieves a
+ message catalog entry for the current journal entry. This will
+ look up an entry in the message catalog by using the
+ <literal>MESSAGE_ID=</literal> field of the current journal entry.
+ Before returning the entry all journal field names in the catalog
+ entry text enclosed in "@" will be replaced by the respective
+ field values of the current entry. If a field name referenced in
+ the message catalog entry does not exist, in the current journal
+ entry, the "@" will be removed, but the field name otherwise left
+ untouched.</para>
+
+ <para><function>sd_journal_get_catalog_for_message_id()</function>
+ works similar to <function>sd_journal_get_catalog()</function> but
+ the entry is looked up by the specified message ID (no open
+ journal context is necessary for this), and no field substitution
+ is performed.</para>
+
+ <para>For more information about the journal message catalog
+ please refer to the <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/catalog">Journal
+ Message Catalogs</ulink> documentation page.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_catalog()</function> and
+ <function>sd_journal_get_catalog_for_message_id()</function>
+ return 0 on success or a negative errno-style error code. If no
+ matching message catalog entry is found, -ENOENT is
+ returned.</para>
+
+ <para>On successful return, <parameter>ret</parameter> points to a
+ new string, which must be freed with
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_catalog()</function> and
+ <function>sd_journal_get_catalog_for_message_id()</function>
+ interfaces are available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>malloc</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_cursor.xml b/src/libsystemd/sd_journal_get_cursor.xml
new file mode 100644
index 0000000000..a400d8b1b5
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_cursor.xml
@@ -0,0 +1,144 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_cursor">
+
+ <refentryinfo>
+ <title>sd_journal_get_cursor</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_cursor</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_cursor</refname>
+ <refname>sd_journal_test_cursor</refname>
+ <refpurpose>Get cursor string for or test cursor string against the current journal entry</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_cursor</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>char **<parameter>cursor</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_test_cursor</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const char *<parameter>cursor</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_cursor()</function> returns a
+ cursor string for the current journal entry. A cursor is a
+ serialization of the current journal position formatted as text.
+ The string only contains printable characters and can be passed
+ around in text form. The cursor identifies a journal entry
+ globally and in a stable way and may be used to later seek to it
+ via
+ <citerefentry><refentrytitle>sd_journal_seek_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ The cursor string should be considered opaque and not be parsed by
+ clients. Seeking to a cursor position without the specific entry
+ being available locally will seek to the next closest (in terms of
+ time) available entry. The call takes two arguments: a journal
+ context object and a pointer to a string pointer where the cursor
+ string will be placed. The string is allocated via libc
+ <citerefentry project='man-pages'><refentrytitle>malloc</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and should be freed after use with
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>Note that <function>sd_journal_get_cursor()</function> will
+ not work before
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ (or related call) has been called at least once, in order to
+ position the read pointer at a valid entry.</para>
+
+ <para><function>sd_journal_test_cursor()</function>
+ may be used to check whether the current position in
+ the journal matches the specified cursor. This is
+ useful since cursor strings do not uniquely identify
+ an entry: the same entry might be referred to by
+ multiple different cursor strings, and hence string
+ comparing cursors is not possible. Use this call to
+ verify after an invocation of
+ <citerefentry><refentrytitle>sd_journal_seek_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ whether the entry being sought to was actually found
+ in the journal or the next closest entry was used
+ instead.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_cursor()</function> returns 0 on
+ success or a negative errno-style error code.
+ <function>sd_journal_test_cursor()</function> returns positive if
+ the current entry matches the specified cursor, 0 if it does not
+ match the specified cursor or a negative errno-style error code on
+ failure.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_cursor()</function> and
+ <function>sd_journal_test_cursor()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_seek_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_cutoff_realtime_usec.xml b/src/libsystemd/sd_journal_get_cutoff_realtime_usec.xml
new file mode 100644
index 0000000000..23e7cc65e8
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_cutoff_realtime_usec.xml
@@ -0,0 +1,145 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_cutoff_realtime_usec">
+
+ <refentryinfo>
+ <title>sd_journal_get_cutoff_realtime_usec</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_cutoff_realtime_usec</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_cutoff_realtime_usec</refname>
+ <refname>sd_journal_get_cutoff_monotonic_usec</refname>
+ <refpurpose>Read cut-off timestamps from the current journal entry</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_cutoff_realtime_usec</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>from</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>to</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_cutoff_monotonic_usec</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>sd_id128_t <parameter>boot_id</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>from</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>to</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_cutoff_realtime_usec()</function>
+ retrieves the realtime (wallclock) timestamps of the first and
+ last entries accessible in the journal. It takes three arguments:
+ the journal context object <parameter>j</parameter> and two
+ pointers <parameter>from</parameter> and <parameter>to</parameter>
+ pointing at 64-bit unsigned integers to store the timestamps in.
+ The timestamps are in microseconds since the epoch, i.e.
+ <constant>CLOCK_REALTIME</constant>. Either one of the two
+ timestamp arguments may be passed as <constant>NULL</constant> in
+ case the timestamp is not needed, but not both.</para>
+
+ <para><function>sd_journal_get_cutoff_monotonic_usec()</function>
+ retrieves the monotonic timestamps of the first and last entries
+ accessible in the journal. It takes three arguments: the journal
+ context object <parameter>j</parameter>, a 128-bit identifier for
+ the boot <parameter>boot_id</parameter>, and two pointers to
+ 64-bit unsigned integers to store the timestamps,
+ <parameter>from</parameter> and <parameter>to</parameter>. The
+ timestamps are in microseconds since boot-up of the specific boot,
+ i.e. <constant>CLOCK_MONOTONIC</constant>. Since the monotonic
+ clock begins new with every reboot it only defines a well-defined
+ point in time when used together with an identifier identifying
+ the boot, see
+ <citerefentry><refentrytitle>sd_id128_get_boot</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information. The function will return the timestamps for
+ the boot identified by the passed boot ID. Either one of the two
+ timestamp arguments may be passed as <constant>NULL</constant> in
+ case the timestamp is not needed, but not both.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_cutoff_realtime_usec()</function>
+ and <function>sd_journal_get_cutoff_monotonic_usec()</function>
+ return 1 on success, 0 if not suitable entries are in the journal
+ or a negative errno-style error code.</para>
+
+ <para>Locations pointed to by parameters
+ <parameter>from</parameter> and <parameter>to</parameter> will be
+ set only if the return value is positive, and obviously, the
+ parameters are non-null.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The
+ <function>sd_journal_get_cutoff_realtime_usec()</function> and
+ <function>sd_journal_get_cutoff_monotonic_usec()</function>
+ interfaces are available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_get_boot</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_data.xml b/src/libsystemd/sd_journal_get_data.xml
new file mode 100644
index 0000000000..908ee7db16
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_data.xml
@@ -0,0 +1,235 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_data">
+
+ <refentryinfo>
+ <title>sd_journal_get_data</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_data</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_data</refname>
+ <refname>sd_journal_enumerate_data</refname>
+ <refname>sd_journal_restart_data</refname>
+ <refname>SD_JOURNAL_FOREACH_DATA</refname>
+ <refname>sd_journal_set_data_threshold</refname>
+ <refname>sd_journal_get_data_threshold</refname>
+ <refpurpose>Read data fields from the current journal entry</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_data</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const char *<parameter>field</parameter></paramdef>
+ <paramdef>const void **<parameter>data</parameter></paramdef>
+ <paramdef>size_t *<parameter>length</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_enumerate_data</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const void **<parameter>data</parameter></paramdef>
+ <paramdef>size_t *<parameter>length</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_journal_restart_data</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef><function>SD_JOURNAL_FOREACH_DATA</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const void *<parameter>data</parameter></paramdef>
+ <paramdef>size_t <parameter>length</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_set_data_threshold</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>size_t <parameter>sz</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_data_threshold</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>size_t *<parameter>sz</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_data()</function> gets the data
+ object associated with a specific field from the current journal
+ entry. It takes four arguments: the journal context object, a
+ string with the field name to request, plus a pair of pointers to
+ pointer/size variables where the data object and its size shall be
+ stored in. The field name should be an entry field name.
+ Well-known field names are listed in
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+ The returned data is in a read-only memory map and is only valid
+ until the next invocation of
+ <function>sd_journal_get_data()</function> or
+ <function>sd_journal_enumerate_data()</function>, or the read
+ pointer is altered. Note that the data returned will be prefixed
+ with the field name and '='. Also note that, by default, data fields
+ larger than 64K might get truncated to 64K. This threshold may be
+ changed and turned off with
+ <function>sd_journal_set_data_threshold()</function> (see
+ below).</para>
+
+ <para><function>sd_journal_enumerate_data()</function> may be used
+ to iterate through all fields of the current entry. On each
+ invocation the data for the next field is returned. The order of
+ these fields is not defined. The data returned is in the same
+ format as with <function>sd_journal_get_data()</function> and also
+ follows the same life-time semantics.</para>
+
+ <para><function>sd_journal_restart_data()</function> resets the
+ data enumeration index to the beginning of the entry. The next
+ invocation of <function>sd_journal_enumerate_data()</function>
+ will return the first field of the entry again.</para>
+
+ <para>Note that the <function>SD_JOURNAL_FOREACH_DATA()</function>
+ macro may be used as a handy wrapper around
+ <function>sd_journal_restart_data()</function> and
+ <function>sd_journal_enumerate_data()</function>.</para>
+
+ <para>Note that these functions will not work before
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ (or related call) has been called at least once, in order to
+ position the read pointer at a valid entry.</para>
+
+ <para><function>sd_journal_set_data_threshold()</function> may be
+ used to change the data field size threshold for data returned by
+ <function>sd_journal_get_data()</function>,
+ <function>sd_journal_enumerate_data()</function> and
+ <function>sd_journal_enumerate_unique()</function>. This threshold
+ is a hint only: it indicates that the client program is interested
+ only in the initial parts of the data fields, up to the threshold
+ in size — but the library might still return larger data objects.
+ That means applications should not rely exclusively on this
+ setting to limit the size of the data fields returned, but need to
+ apply a explicit size limit on the returned data as well. This
+ threshold defaults to 64K by default. To retrieve the complete
+ data fields this threshold should be turned off by setting it to
+ 0, so that the library always returns the complete data objects.
+ It is recommended to set this threshold as low as possible since
+ this relieves the library from having to decompress large
+ compressed data objects in full.</para>
+
+ <para><function>sd_journal_get_data_threshold()</function> returns
+ the currently configured data field size threshold.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_data()</function> returns 0 on
+ success or a negative errno-style error code. If the current entry
+ does not include the specified field, -ENOENT is returned. If
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ has not been called at least once, -EADDRNOTAVAIL is returned.
+ <function>sd_journal_enumerate_data()</function> returns a
+ positive integer if the next field has been read, 0 when no more
+ fields are known, or a negative errno-style error code.
+ <function>sd_journal_restart_data()</function> returns nothing.
+ <function>sd_journal_set_data_threshold()</function> and
+ <function>sd_journal_get_threshold()</function> return 0 on
+ success or a negative errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_data()</function>,
+ <function>sd_journal_enumerate_data()</function>,
+ <function>sd_journal_restart_data()</function>,
+ <function>sd_journal_set_data_threshold()</function> and
+ <function>sd_journal_get_data_threshold()</function> interfaces
+ are available as a shared library, which can be compiled and
+ linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for a complete example how to use
+ <function>sd_journal_get_data()</function>.</para>
+
+ <para>Use the
+ <function>SD_JOURNAL_FOREACH_DATA</function> macro to
+ iterate through all fields of the current journal
+ entry:</para>
+
+ <programlisting>...
+int print_fields(sd_journal *j) {
+ const void *data;
+ size_t length;
+ SD_JOURNAL_FOREACH_DATA(j, data, length)
+ printf("%.*s\n", (int) length, data);
+}
+...</programlisting>
+
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_query_unique</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_fd.xml b/src/libsystemd/sd_journal_get_fd.xml
new file mode 100644
index 0000000000..61293f7f99
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_fd.xml
@@ -0,0 +1,332 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_fd">
+
+ <refentryinfo>
+ <title>sd_journal_get_fd</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_fd</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_fd</refname>
+ <refname>sd_journal_get_events</refname>
+ <refname>sd_journal_get_timeout</refname>
+ <refname>sd_journal_process</refname>
+ <refname>sd_journal_wait</refname>
+ <refname>sd_journal_reliable_fd</refname>
+ <refname>SD_JOURNAL_NOP</refname>
+ <refname>SD_JOURNAL_APPEND</refname>
+ <refname>SD_JOURNAL_INVALIDATE</refname>
+ <refpurpose>Journal change notification
+ interface</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_fd</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_events</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_timeout</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>timeout_usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_process</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_wait</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t <parameter>timeout_usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_reliable_fd</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_fd()</function> returns a file
+ descriptor that may be asynchronously polled in an external event
+ loop and is signaled as soon as the journal changes, because new
+ entries or files were added, rotation took place, or files have
+ been deleted, and similar. The file descriptor is suitable for
+ usage in
+ <citerefentry><refentrytitle>poll</refentrytitle><manvolnum>2</manvolnum></citerefentry>.
+ Use <function>sd_journal_get_events()</function> for an events
+ mask to watch for. The call takes one argument: the journal
+ context object. Note that not all file systems are capable of
+ generating the necessary events for wakeups from this file
+ descriptor for changes to be noticed immediately. In particular
+ network files systems do not generate suitable file change events
+ in all cases. Cases like this can be detected with
+ <function>sd_journal_reliable_fd()</function>, below.
+ <function>sd_journal_get_timeout()</function> will ensure in these
+ cases that wake-ups happen frequently enough for changes to be
+ noticed, although with a certain latency.</para>
+
+ <para><function>sd_journal_get_events()</function> will return the
+ <function>poll()</function> mask to wait for. This function will
+ return a combination of <constant>POLLIN</constant> and
+ <constant>POLLOUT</constant> and similar to fill into the
+ <literal>.events</literal> field of <varname>struct
+ pollfd</varname>.</para>
+
+ <para><function>sd_journal_get_timeout()</function> will return a
+ timeout value for usage in <function>poll()</function>. This
+ returns a value in microseconds since the epoch of
+ <constant>CLOCK_MONOTONIC</constant> for timing out
+ <function>poll()</function> in <varname>timeout_usec</varname>.
+ See
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for details about <constant>CLOCK_MONOTONIC</constant>. If there
+ is no timeout to wait for, this will fill in <constant>(uint64_t)
+ -1</constant> instead. Note that <function>poll()</function> takes
+ a relative timeout in milliseconds rather than an absolute timeout
+ in microseconds. To convert the absolute 'us' timeout into
+ relative 'ms', use code like the following:</para>
+
+ <programlisting>uint64_t t;
+int msec;
+sd_journal_get_timeout(m, &amp;t);
+if (t == (uint64_t) -1)
+ msec = -1;
+else {
+ struct timespec ts;
+ uint64_t n;
+ clock_getttime(CLOCK_MONOTONIC, &amp;ts);
+ n = (uint64_t) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
+ msec = t > n ? (int) ((t - n + 999) / 1000) : 0;
+}</programlisting>
+
+ <para>The code above does not do any error checking for brevity's
+ sake. The calculated <varname>msec</varname> integer can be passed
+ directly as <function>poll()</function>'s timeout
+ parameter.</para>
+
+ <para>After each <function>poll()</function> wake-up
+ <function>sd_journal_process()</function> needs to be called to
+ process events. This call will also indicate what kind of change
+ has been detected (see below; note that spurious wake-ups are
+ possible).</para>
+
+ <para>A synchronous alternative for using
+ <function>sd_journal_get_fd()</function>,
+ <function>sd_journal_get_events()</function>,
+ <function>sd_journal_get_timeout()</function> and
+ <function>sd_journal_process()</function> is
+ <function>sd_journal_wait()</function>. It will synchronously wait
+ until the journal gets changed. The maximum time this call sleeps
+ may be controlled with the <parameter>timeout_usec</parameter>
+ parameter. Pass <constant>(uint64_t) -1</constant> to wait
+ indefinitely. Internally this call simply combines
+ <function>sd_journal_get_fd()</function>,
+ <function>sd_journal_get_events()</function>,
+ <function>sd_journal_get_timeout()</function>,
+ <function>poll()</function> and
+ <function>sd_journal_process()</function> into one.</para>
+
+ <para><function>sd_journal_reliable_fd()</function> may be used to
+ check whether the wakeup events from the file descriptor returned
+ by <function>sd_journal_get_fd()</function> are known to be
+ immediately triggered. On certain file systems where file change
+ events from the OS are not available (such as NFS) changes need to
+ be polled for repeatedly, and hence are detected only with a
+ certain latency. This call will return a positive value if the
+ journal changes are detected immediately and zero when they need
+ to be polled for and hence might be noticed only with a certain
+ latency. Note that there is usually no need to invoke this function
+ directly as <function>sd_journal_get_timeout()</function> on these
+ file systems will ask for timeouts explicitly anyway.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_fd()</function> returns a valid
+ file descriptor on success or a negative errno-style error
+ code.</para>
+
+ <para><function>sd_journal_get_events()</function> returns a
+ combination of <constant>POLLIN</constant>,
+ <constant>POLLOUT</constant> and suchlike on success or a negative
+ errno-style error code.</para>
+
+ <para><function>sd_journal_reliable_fd()</function> returns a
+ positive integer if the file descriptor returned by
+ <function>sd_journal_get_fd()</function> will generate wake-ups
+ immediately for all journal changes. Returns 0 if there might be a
+ latency involved.</para>
+
+ <para><function>sd_journal_process()</function> and
+ <function>sd_journal_wait()</function> return one of
+ <constant>SD_JOURNAL_NOP</constant>,
+ <constant>SD_JOURNAL_APPEND</constant> or
+ <constant>SD_JOURNAL_INVALIDATE</constant> on success or a
+ negative errno-style error code. If
+ <constant>SD_JOURNAL_NOP</constant> is returned, the journal did
+ not change since the last invocation. If
+ <constant>SD_JOURNAL_APPEND</constant> is returned, new entries
+ have been appended to the end of the journal. If
+ <constant>SD_JOURNAL_INVALIDATE</constant>, journal files were
+ added or removed (possibly due to rotation). In the latter event,
+ live-view UIs should probably refresh their entire display, while
+ in the case of <constant>SD_JOURNAL_APPEND</constant>, it is
+ sufficient to simply continue reading at the previous end of the
+ journal.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_fd()</function>,
+ <function>sd_journal_get_events()</function>,
+ <function>sd_journal_reliable_fd()</function>,
+ <function>sd_journal_process()</function> and
+ <function>sd_journal_wait()</function> interfaces are available as
+ a shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>Iterating through the journal, in a live view tracking all
+ changes:</para>
+
+ <programlisting>#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;systemd/sd-journal.h&gt;
+
+int main(int argc, char *argv[]) {
+ int r;
+ sd_journal *j;
+ r = sd_journal_open(&amp;j, SD_JOURNAL_LOCAL_ONLY);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to open journal: %s\n", strerror(-r));
+ return 1;
+ }
+ for (;;) {
+ const void *d;
+ size_t l;
+ r = sd_journal_next(j);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to iterate to next entry: %s\n", strerror(-r));
+ break;
+ }
+ if (r == 0) {
+ /* Reached the end, let's wait for changes, and try again */
+ r = sd_journal_wait(j, (uint64_t) -1);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to wait for changes: %s\n", strerror(-r));
+ break;
+ }
+ continue;
+ }
+ r = sd_journal_get_data(j, "MESSAGE", &amp;d, &amp;l);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to read message field: %s\n", strerror(-r));
+ continue;
+ }
+ printf("%.*s\n", (int) l, (const char*) d);
+ }
+ sd_journal_close(j);
+ return 0;
+}</programlisting>
+
+ <para>Waiting with <function>poll()</function> (this
+ example lacks all error checking for the sake of
+ simplicity):</para>
+
+ <programlisting>#include &lt;poll.h&gt;
+#include &lt;systemd/sd-journal.h&gt;
+
+int wait_for_changes(sd_journal *j) {
+ struct pollfd pollfd;
+ int msec;
+
+ sd_journal_get_timeout(m, &amp;t);
+ if (t == (uint64_t) -1)
+ msec = -1;
+ else {
+ struct timespec ts;
+ uint64_t n;
+ clock_getttime(CLOCK_MONOTONIC, &amp;ts);
+ n = (uint64_t) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
+ msec = t > n ? (int) ((t - n + 999) / 1000) : 0;
+ }
+
+ pollfd.fd = sd_journal_get_fd(j);
+ pollfd.events = sd_journal_get_events(j);
+ poll(&amp;pollfd, 1, msec);
+ return sd_journal_process(j);
+}</programlisting>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>poll</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_realtime_usec.xml b/src/libsystemd/sd_journal_get_realtime_usec.xml
new file mode 100644
index 0000000000..607d74666b
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_realtime_usec.xml
@@ -0,0 +1,141 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_realtime_usec">
+
+ <refentryinfo>
+ <title>sd_journal_get_realtime_usec</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_realtime_usec</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_realtime_usec</refname>
+ <refname>sd_journal_get_monotonic_usec</refname>
+ <refpurpose>Read timestamps from the current journal entry</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_realtime_usec</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_monotonic_usec</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ <paramdef>sd_id128_t *<parameter>boot_id</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_realtime_usec()</function> gets the
+ realtime (wallclock) timestamp of the current journal entry. It
+ takes two arguments: the journal context object and a pointer to a
+ 64-bit unsigned integer to store the timestamp in. The timestamp
+ is in microseconds since the epoch, i.e.
+ <constant>CLOCK_REALTIME</constant>.</para>
+
+ <para><function>sd_journal_get_monotonic_usec()</function> gets
+ the monotonic timestamp of the current journal entry. It takes
+ three arguments: the journal context object, a pointer to a 64-bit
+ unsigned integer to store the timestamp in, as well as a 128-bit
+ ID buffer to store the boot ID of the monotonic timestamp. The
+ timestamp is in microseconds since boot-up of the specific boot,
+ i.e. <constant>CLOCK_MONOTONIC</constant>. Since the monotonic
+ clock begins new with every reboot, it only defines a well-defined
+ point in time when used together with an identifier identifying
+ the boot. See
+ <citerefentry><refentrytitle>sd_id128_get_boot</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information. If the boot ID parameter is passed
+ <constant>NULL</constant>, the function will fail if the monotonic
+ timestamp of the current entry is not of the current system
+ boot.</para>
+
+ <para>Note that these functions will not work before
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ (or related call) has been called at least
+ once, in order to position the read pointer at a valid entry.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_realtime_usec()</function> and
+ <function>sd_journal_get_monotonic_usec()</function> returns 0 on
+ success or a negative errno-style error code. If the boot ID
+ parameter was passed <constant>NULL</constant> and the monotonic
+ timestamp of the current journal entry is not of the current
+ system boot, <constant>-ESTALE</constant> is returned by
+ <function>sd_journal_get_monotonic_usec()</function>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_realtime_usec()</function> and
+ <function>sd_journal_get_monotonic_usec()</function> interfaces
+ are available as a shared library, which can be compiled and
+ linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_id128_get_boot</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cutoff_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_get_usage.xml b/src/libsystemd/sd_journal_get_usage.xml
new file mode 100644
index 0000000000..72c804d834
--- /dev/null
+++ b/src/libsystemd/sd_journal_get_usage.xml
@@ -0,0 +1,100 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_get_usage">
+
+ <refentryinfo>
+ <title>sd_journal_get_usage</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_get_usage</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_usage</refname>
+ <refpurpose>Journal disk usage</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_usage</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>bytes</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_usage()</function> determines the
+ total disk space currently used by journal files (in bytes). If
+ <constant>SD_JOURNAL_LOCAL_ONLY</constant> was passed when opening
+ the journal, this value will only reflect the size of journal
+ files of the local host, otherwise of all hosts.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_usage()</function> returns 0 on
+ success or a negative errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_usage()</function> interface is
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_has_runtime_files.xml b/src/libsystemd/sd_journal_has_runtime_files.xml
new file mode 100644
index 0000000000..237e649206
--- /dev/null
+++ b/src/libsystemd/sd_journal_has_runtime_files.xml
@@ -0,0 +1,95 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2016 Jan Synáček
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_has_runtime_files">
+
+ <refentryinfo>
+ <title>sd_journal_has_runtime_files</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Jan</firstname>
+ <surname>Synáček</surname>
+ <email>jan.synacek@gmail.com</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_has_runtime_files</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_has_runtime_files</refname>
+ <refname>sd_journal_has_persistent_files</refname>
+ <refpurpose>Query availability of runtime or persistent journal files.</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_has_runtime_files</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_has_persistent_files</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_has_runtime_files()</function> returns a positive value
+ if runtime journal files (present in /run/systemd/journal/) have been found.
+ Otherwise returns 0.</para>
+
+ <para><function>sd_journal_has_persistent_files()</function> returns a positive value
+ if persistent journal files (present in /var/log/journal/) have been found.
+ Otherwise returns 0.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return value</title>
+ <para>Both <function>sd_journal_has_runtime_files()</function>
+ and <function>sd_journal_has_persistent_files()</function> return -EINVAL
+ if their argument is NULL.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_next.xml b/src/libsystemd/sd_journal_next.xml
new file mode 100644
index 0000000000..115fe26661
--- /dev/null
+++ b/src/libsystemd/sd_journal_next.xml
@@ -0,0 +1,207 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_next">
+
+ <refentryinfo>
+ <title>sd_journal_next</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_next</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_next</refname>
+ <refname>sd_journal_previous</refname>
+ <refname>sd_journal_next_skip</refname>
+ <refname>sd_journal_previous_skip</refname>
+ <refname>SD_JOURNAL_FOREACH</refname>
+ <refname>SD_JOURNAL_FOREACH_BACKWARDS</refname>
+ <refpurpose>Advance or set back the read pointer in the journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_next</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_previous</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_next_skip</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t <parameter>skip</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_previous_skip</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t <parameter>skip</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef><function>SD_JOURNAL_FOREACH</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef><function>SD_JOURNAL_FOREACH_BACKWARDS</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_next()</function> advances the read
+ pointer into the journal by one entry. The only argument taken is
+ a journal context object as allocated via
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ After successful invocation the entry may be read with functions
+ such as
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>Similarly, <function>sd_journal_previous()</function> sets
+ the read pointer back one entry.</para>
+
+ <para><function>sd_journal_next_skip()</function> and
+ <function>sd_journal_previous_skip()</function> advance/set back
+ the read pointer by multiple entries at once, as specified in the
+ <varname>skip</varname> parameter.</para>
+
+ <para>The journal is strictly ordered by reception time, and hence
+ advancing to the next entry guarantees that the entry then
+ pointing to is later in time than then previous one, or has the
+ same timestamp.</para>
+
+ <para>Note that
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and related calls will fail unless
+ <function>sd_journal_next()</function> has been invoked at least
+ once in order to position the read pointer on a journal
+ entry.</para>
+
+ <para>Note that the <function>SD_JOURNAL_FOREACH()</function>
+ macro may be used as a wrapper around
+ <citerefentry><refentrytitle>sd_journal_seek_head</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and <function>sd_journal_next()</function> in order to make
+ iterating through the journal easier. See below for an example.
+ Similarly, <function>SD_JOURNAL_FOREACH_BACKWARDS()</function> may
+ be used for iterating the journal in reverse order.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The four calls return the number of entries advanced/set
+ back on success or a negative errno-style error code. When the end
+ or beginning of the journal is reached, a number smaller than
+ requested is returned. More specifically, if
+ <function>sd_journal_next()</function> or
+ <function>sd_journal_previous()</function> reach the end/beginning
+ of the journal they will return 0, instead of 1 when they are
+ successful. This should be considered an EOF marker.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_next()</function>,
+ <function>sd_journal_previous()</function>,
+ <function>sd_journal_next_skip()</function> and
+ <function>sd_journal_previous_skip()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>Iterating through the journal:</para>
+
+ <programlisting>#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;systemd/sd-journal.h&gt;
+
+int main(int argc, char *argv[]) {
+ int r;
+ sd_journal *j;
+ r = sd_journal_open(&amp;j, SD_JOURNAL_LOCAL_ONLY);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to open journal: %s\n", strerror(-r));
+ return 1;
+ }
+ SD_JOURNAL_FOREACH(j) {
+ const char *d;
+ size_t l;
+
+ r = sd_journal_get_data(j, "MESSAGE", (const void **)&amp;d, &amp;l);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to read message field: %s\n", strerror(-r));
+ continue;
+ }
+
+ printf("%.*s\n", (int) l, d);
+ }
+ sd_journal_close(j);
+ return 0;
+}</programlisting>
+
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_open.xml b/src/libsystemd/sd_journal_open.xml
new file mode 100644
index 0000000000..153af2387f
--- /dev/null
+++ b/src/libsystemd/sd_journal_open.xml
@@ -0,0 +1,228 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_open">
+
+ <refentryinfo>
+ <title>sd_journal_open</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_open</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_open</refname>
+ <refname>sd_journal_open_directory</refname>
+ <refname>sd_journal_open_directory_fd</refname>
+ <refname>sd_journal_open_files</refname>
+ <refname>sd_journal_open_files_fd</refname>
+ <refname>sd_journal_close</refname>
+ <refname>sd_journal</refname>
+ <refname>SD_JOURNAL_LOCAL_ONLY</refname>
+ <refname>SD_JOURNAL_RUNTIME_ONLY</refname>
+ <refname>SD_JOURNAL_SYSTEM</refname>
+ <refname>SD_JOURNAL_CURRENT_USER</refname>
+ <refname>SD_JOURNAL_OS_ROOT</refname>
+ <refpurpose>Open the system journal for reading</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_open</function></funcdef>
+ <paramdef>sd_journal **<parameter>ret</parameter></paramdef>
+ <paramdef>int <parameter>flags</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_open_directory</function></funcdef>
+ <paramdef>sd_journal **<parameter>ret</parameter></paramdef>
+ <paramdef>const char *<parameter>path</parameter></paramdef>
+ <paramdef>int <parameter>flags</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_open_directory_fd</function></funcdef>
+ <paramdef>sd_journal **<parameter>ret</parameter></paramdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>int <parameter>flags</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_open_files</function></funcdef>
+ <paramdef>sd_journal **<parameter>ret</parameter></paramdef>
+ <paramdef>const char **<parameter>paths</parameter></paramdef>
+ <paramdef>int <parameter>flags</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_open_files_fd</function></funcdef>
+ <paramdef>sd_journal **<parameter>ret</parameter></paramdef>
+ <paramdef>int <parameter>fds[]</parameter></paramdef>
+ <paramdef>unsigned <parameter>n_fds</parameter></paramdef>
+ <paramdef>int <parameter>flags</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_journal_close</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_open()</function> opens the log journal
+ for reading. It will find all journal files automatically and
+ interleave them automatically when reading. As first argument it
+ takes a pointer to a <varname>sd_journal</varname> pointer, which,
+ on success, will contain a journal context object. The second
+ argument is a flags field, which may consist of the following
+ flags ORed together: <constant>SD_JOURNAL_LOCAL_ONLY</constant>
+ makes sure only journal files generated on the local machine will
+ be opened. <constant>SD_JOURNAL_RUNTIME_ONLY</constant> makes sure
+ only volatile journal files will be opened, excluding those which
+ are stored on persistent storage.
+ <constant>SD_JOURNAL_SYSTEM</constant> will cause journal files of
+ system services and the kernel (in opposition to user session
+ processes) to be opened.
+ <constant>SD_JOURNAL_CURRENT_USER</constant> will cause journal
+ files of the current user to be opened. If neither
+ <constant>SD_JOURNAL_SYSTEM</constant> nor
+ <constant>SD_JOURNAL_CURRENT_USER</constant> are specified, all
+ journal file types will be opened.</para>
+
+ <para><function>sd_journal_open_directory()</function> is similar to <function>sd_journal_open()</function> but
+ takes an absolute directory path as argument. All journal files in this directory will be opened and interleaved
+ automatically. This call also takes a flags argument. The only flags parameter accepted by this call is
+ <constant>SD_JOURNAL_OS_ROOT</constant>. If specified, the journal files are searched below the usual
+ <filename>/var/log/journal</filename> and <filename>/run/log/journal</filename> relative to the specified path,
+ instead of directly beneath it.</para>
+
+ <para><function>sd_journal_open_directory_fd()</function> is similar to
+ <function>sd_journal_open_directory()</function>, but takes a file descriptor referencing a directory in the file
+ system instead of an absolute file system path.</para>
+
+ <para><function>sd_journal_open_files()</function> is similar to <function>sd_journal_open()</function> but takes a
+ <constant>NULL</constant>-terminated list of file paths to open. All files will be opened and interleaved
+ automatically. This call also takes a flags argument, but it must be passed as 0 as no flags are currently
+ understood for this call. Please note that in the case of a live journal, this function is only useful for
+ debugging, because individual journal files can be rotated at any moment, and the opening of specific files is
+ inherently racy.</para>
+
+ <para><function>sd_journal_open_files_fd()</function> is similar to <function>sd_journal_open_files()</function>
+ but takes an array of open file descriptors that must reference journal files, instead of an array of file system
+ paths. Pass the array of file descriptors as second argument, and the number of array entries in the third. The
+ flags parameter must be passed as 0.</para>
+
+ <para><varname>sd_journal</varname> objects cannot be used in the
+ child after a fork. Functions which take a journal object as an
+ argument (<function>sd_journal_next()</function> and others) will
+ return <constant>-ECHILD</constant> after a fork.
+ </para>
+
+ <para><function>sd_journal_close()</function> will close the
+ journal context allocated with
+ <function>sd_journal_open()</function> or
+ <function>sd_journal_open_directory()</function> and free its
+ resources.</para>
+
+ <para>When opening the journal only journal files accessible to
+ the calling user will be opened. If journal files are not
+ accessible to the caller, this will be silently ignored.</para>
+
+ <para>See
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for an example of how to iterate through the journal after opening
+ it with <function>sd_journal_open()</function>.</para>
+
+ <para>A journal context object returned by
+ <function>sd_journal_open()</function> references a specific
+ journal entry as <emphasis>current</emphasis> entry, similar to a
+ file seek index in a classic file system file, but without
+ absolute positions. It may be altered with
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and
+ <citerefentry><refentrytitle>sd_journal_seek_head</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and related calls. The current entry position may be exported in
+ <emphasis>cursor</emphasis> strings, as accessible via
+ <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ Cursor strings may be used to globally identify a specific journal
+ entry in a stable way and then later to seek to it (or if the
+ specific entry is not available locally, to its closest entry in
+ time)
+ <citerefentry><refentrytitle>sd_journal_seek_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>Notification of journal changes is available via
+ <function>sd_journal_get_fd()</function> and related calls.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The <function>sd_journal_open()</function>,
+ <function>sd_journal_open_directory()</function>, and
+ <function>sd_journal_open_files()</function> calls return 0 on
+ success or a negative errno-style error code.
+ <function>sd_journal_close()</function> returns nothing.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_open()</function>,
+ <function>sd_journal_open_directory()</function> and
+ <function>sd_journal_close()</function> interfaces are available
+ as a shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-machined</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_print.xml b/src/libsystemd/sd_journal_print.xml
new file mode 100644
index 0000000000..17fdc9c1f2
--- /dev/null
+++ b/src/libsystemd/sd_journal_print.xml
@@ -0,0 +1,260 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_print">
+
+ <refentryinfo>
+ <title>sd_journal_print</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_print</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_print</refname>
+ <refname>sd_journal_printv</refname>
+ <refname>sd_journal_send</refname>
+ <refname>sd_journal_sendv</refname>
+ <refname>sd_journal_perror</refname>
+ <refname>SD_JOURNAL_SUPPRESS_LOCATION</refname>
+ <refpurpose>Submit log entries to the journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_print</function></funcdef>
+ <paramdef>int <parameter>priority</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_printv</function></funcdef>
+ <paramdef>int <parameter>priority</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>va_list <parameter>ap</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_send</function></funcdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_sendv</function></funcdef>
+ <paramdef>const struct iovec *<parameter>iov</parameter></paramdef>
+ <paramdef>int <parameter>n</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_perror</function></funcdef>
+ <paramdef>const char *<parameter>message</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_print()</function> may be used to
+ submit simple, plain text log entries to the system journal. The
+ first argument is a priority value. This is followed by a format
+ string and its parameters, similar to
+ <citerefentry project='man-pages'><refentrytitle>printf</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or
+ <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ The priority value is one of
+ <constant>LOG_EMERG</constant>,
+ <constant>LOG_ALERT</constant>,
+ <constant>LOG_CRIT</constant>,
+ <constant>LOG_ERR</constant>,
+ <constant>LOG_WARNING</constant>,
+ <constant>LOG_NOTICE</constant>,
+ <constant>LOG_INFO</constant>,
+ <constant>LOG_DEBUG</constant>, as defined in
+ <filename>syslog.h</filename>, see
+ <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for details. It is recommended to use this call to submit log
+ messages in the application locale or system locale and in UTF-8
+ format, but no such restrictions are enforced.</para>
+
+ <para><function>sd_journal_printv()</function> is similar to
+ <function>sd_journal_print()</function> but takes a variable
+ argument list encapsulated in an object of type
+ <varname>va_list</varname> (see
+ <citerefentry project='man-pages'><refentrytitle>stdarg</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information) instead of the format string. It is
+ otherwise equivalent in behavior.</para>
+
+ <para><function>sd_journal_send()</function> may be used to submit
+ structured log entries to the system journal. It takes a series of
+ format strings, each immediately followed by their associated
+ parameters, terminated by <constant>NULL</constant>. The strings
+ passed should be of the format <literal>VARIABLE=value</literal>.
+ The variable name must be in uppercase and consist only of
+ characters, numbers and underscores, and may not begin with an
+ underscore. (All assignments that do not follow this syntax will
+ be ignored.) The value can be of any size and format. It is highly
+ recommended to submit text strings formatted in the UTF-8
+ character encoding only, and submit binary fields only when
+ formatting in UTF-8 strings is not sensible. A number of
+ well-known fields are defined, see
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ for details, but additional application defined fields may be
+ used. A variable may be assigned more than one value per
+ entry.</para>
+
+ <para><function>sd_journal_sendv()</function> is similar to
+ <function>sd_journal_send()</function> but takes an array of
+ <varname>struct iovec</varname> (as defined in
+ <filename>uio.h</filename>, see
+ <citerefentry project='man-pages'><refentrytitle>readv</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for details) instead of the format string. Each structure should
+ reference one field of the entry to submit. The second argument
+ specifies the number of structures in the array.
+ <function>sd_journal_sendv()</function> is particularly useful to
+ submit binary objects to the journal where that is
+ necessary.</para>
+
+ <para><function>sd_journal_perror()</function> is a similar to
+ <citerefentry project='die-net'><refentrytitle>perror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and writes a message to the journal that consists of the passed
+ string, suffixed with ": " and a human-readable representation of
+ the current error code stored in
+ <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If the message string is passed as <constant>NULL</constant> or
+ empty string, only the error string representation will be
+ written, prefixed with nothing. An additional journal field ERRNO=
+ is included in the entry containing the numeric error code
+ formatted as decimal string. The log priority used is
+ <constant>LOG_ERR</constant> (3).</para>
+
+ <para>Note that <function>sd_journal_send()</function> is a
+ wrapper around <function>sd_journal_sendv()</function> to make it
+ easier to use when only text strings shall be submitted. Also, the
+ following two calls are mostly equivalent:</para>
+
+ <programlisting>sd_journal_print(LOG_INFO, "Hello World, this is PID %lu!", (unsigned long) getpid());
+
+sd_journal_send("MESSAGE=Hello World, this is PID %lu!", (unsigned long) getpid(),
+ "PRIORITY=%i", LOG_INFO,
+ NULL);</programlisting>
+
+ <para>Note that these calls implicitly add fields for the source
+ file, function name and code line where invoked. This is
+ implemented with macros. If this is not desired, it can be turned
+ off by defining SD_JOURNAL_SUPPRESS_LOCATION before including
+ <filename>sd-journal.h</filename>.</para>
+
+ <para><citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ and <function>sd_journal_print()</function> may
+ largely be used interchangeably
+ functionality-wise. However, note that log messages
+ logged via the former take a different path to the
+ journal server than the later, and hence global
+ chronological ordering between the two streams cannot
+ be guaranteed. Using
+ <function>sd_journal_print()</function> has the
+ benefit of logging source code line, filenames, and
+ functions as metadata along all entries, and
+ guaranteeing chronological ordering with structured
+ log entries that are generated via
+ <function>sd_journal_send()</function>. Using
+ <function>syslog()</function> has the benefit of being
+ more portable.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The four calls return 0 on success or a negative errno-style
+ error code. The
+ <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ variable itself is not altered.</para>
+
+ <para>If
+ <citerefentry><refentrytitle>systemd-journald</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ is not running (the socket is not present), those functions do
+ nothing, and also return 0.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Async signal safety</title>
+ <para><function>sd_journal_sendv()</function> is "async signal
+ safe" in the meaning of
+ <citerefentry project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+ </para>
+
+ <para><function>sd_journal_print</function>,
+ <function>sd_journal_printv</function>,
+ <function>sd_journal_send</function>, and
+ <function>sd_journal_perror</function> are
+ not async signal safe.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_print()</function>,
+ <function>sd_journal_printv()</function>,
+ <function>sd_journal_send()</function> and
+ <function>sd_journal_sendv()</function> interfaces are available
+ as a shared library, which can be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_stream_fd</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='die-net'><refentrytitle>perror</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>signal</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>socket</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_query_unique.xml b/src/libsystemd/sd_journal_query_unique.xml
new file mode 100644
index 0000000000..dbff55c105
--- /dev/null
+++ b/src/libsystemd/sd_journal_query_unique.xml
@@ -0,0 +1,212 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_query_unique">
+
+ <refentryinfo>
+ <title>sd_journal_query_unique</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_query_unique</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_query_unique</refname>
+ <refname>sd_journal_enumerate_unique</refname>
+ <refname>sd_journal_restart_unique</refname>
+ <refname>SD_JOURNAL_FOREACH_UNIQUE</refname>
+ <refpurpose>Read unique data fields from the journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_query_unique</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const char *<parameter>field</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_enumerate_unique</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const void **<parameter>data</parameter></paramdef>
+ <paramdef>size_t *<parameter>length</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_journal_restart_unique</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef><function>SD_JOURNAL_FOREACH_UNIQUE</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const void *<parameter>data</parameter></paramdef>
+ <paramdef>size_t <parameter>length</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_query_unique()</function> queries the
+ journal for all unique values the specified field can take. It
+ takes two arguments: the journal to query and the field name to
+ look for. Well-known field names are listed on
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+ Field names must be specified without a trailing '='. After this
+ function has been executed successfully the field values may be
+ queried using <function>sd_journal_enumerate_unique()</function>.
+ Invoking this call a second time will change the field name being
+ queried and reset the enumeration index to the first field value
+ that matches.</para>
+
+ <para><function>sd_journal_enumerate_unique()</function> may be
+ used to iterate through all data fields which match the previously
+ selected field name as set with
+ <function>sd_journal_query_unique()</function>. On each invocation
+ the next field data matching the field name is returned. The order
+ of the returned data fields is not defined. It takes three
+ arguments: the journal context object, plus a pair of pointers to
+ pointer/size variables where the data object and its size shall be
+ stored in. The returned data is in a read-only memory map and is
+ only valid until the next invocation of
+ <function>sd_journal_enumerate_unique()</function>. Note that the
+ data returned will be prefixed with the field name and '='. Note
+ that this call is subject to the data field size threshold as
+ controlled by
+ <function>sd_journal_set_data_threshold()</function>.</para>
+
+ <para><function>sd_journal_restart_unique()</function> resets the
+ data enumeration index to the beginning of the list. The next
+ invocation of <function>sd_journal_enumerate_unique()</function>
+ will return the first field data matching the field name
+ again.</para>
+
+ <para>Note that the
+ <function>SD_JOURNAL_FOREACH_UNIQUE()</function> macro may be used
+ as a handy wrapper around
+ <function>sd_journal_restart_unique()</function> and
+ <function>sd_journal_enumerate_unique()</function>.</para>
+
+ <para>Note that these functions currently are not influenced by
+ matches set with <function>sd_journal_add_match()</function> but
+ this might change in a later version of this software.</para>
+
+ <para>To enumerate all field names currently in use (and thus all suitable field parameters for
+ <function>sd_journal_query_unique()</function>), use the
+ <citerefentry><refentrytitle>sd_journal_enumerate_fields</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_query_unique()</function> returns 0 on
+ success or a negative errno-style error code.
+ <function>sd_journal_enumerate_unique()</function> returns a
+ positive integer if the next field data has been read, 0 when no
+ more fields are known, or a negative errno-style error code.
+ <function>sd_journal_restart_unique()</function> returns
+ nothing.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_query_unique()</function>,
+ <function>sd_journal_enumerate_unique()</function> and
+ <function>sd_journal_restart_unique()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>Use the <function>SD_JOURNAL_FOREACH_UNIQUE</function> macro
+ to iterate through all values a field of the journal can take. The
+ following example lists all unit names referenced in the
+ journal:</para>
+
+ <programlisting>#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;systemd/sd-journal.h&gt;
+
+int main(int argc, char *argv[]) {
+ sd_journal *j;
+ const void *d;
+ size_t l;
+ int r;
+
+ r = sd_journal_open(&amp;j, SD_JOURNAL_LOCAL_ONLY);
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to open journal: %s\n", strerror(-r));
+ return 1;
+ }
+ r = sd_journal_query_unique(j, "_SYSTEMD_UNIT");
+ if (r &lt; 0) {
+ fprintf(stderr, "Failed to query journal: %s\n", strerror(-r));
+ return 1;
+ }
+ SD_JOURNAL_FOREACH_UNIQUE(j, d, l)
+ printf("%.*s\n", (int) l, (const char*) d);
+ sd_journal_close(j);
+ return 0;
+}</programlisting>
+
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_enumerate_fields</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_add_match</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_seek_head.xml b/src/libsystemd/sd_journal_seek_head.xml
new file mode 100644
index 0000000000..d74c2d5bbc
--- /dev/null
+++ b/src/libsystemd/sd_journal_seek_head.xml
@@ -0,0 +1,172 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_seek_head">
+
+ <refentryinfo>
+ <title>sd_journal_seek_head</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_seek_head</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_seek_head</refname>
+ <refname>sd_journal_seek_tail</refname>
+ <refname>sd_journal_seek_monotonic_usec</refname>
+ <refname>sd_journal_seek_realtime_usec</refname>
+ <refname>sd_journal_seek_cursor</refname>
+ <refpurpose>Seek to a position in the
+ journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_seek_head</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_seek_tail</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_seek_monotonic_usec</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>sd_id128_t <parameter>boot_id</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_seek_realtime_usec</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>uint64_t <parameter>usec</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_seek_cursor</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>const char *<parameter>cursor</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_seek_head()</function> seeks to the
+ beginning of the journal, i.e. the oldest available entry.</para>
+
+ <para>Similarly, <function>sd_journal_seek_tail()</function> may
+ be used to seek to the end of the journal, i.e. the most recent
+ available entry.</para>
+
+ <para><function>sd_journal_seek_monotonic_usec()</function> seeks
+ to the entry with the specified monotonic timestamp, i.e.
+ <constant>CLOCK_MONOTONIC</constant>. Since monotonic time
+ restarts on every reboot a boot ID needs to be specified as
+ well.</para>
+
+ <para><function>sd_journal_seek_realtime_usec()</function> seeks
+ to the entry with the specified realtime (wallclock) timestamp,
+ i.e. <constant>CLOCK_REALTIME</constant>. Note that the realtime
+ clock is not necessarily monotonic. If a realtime timestamp is
+ ambiguous, it is not defined which position is sought to.</para>
+
+ <para><function>sd_journal_seek_cursor()</function> seeks to the
+ entry located at the specified cursor string. For details on
+ cursors, see
+ <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If no entry matching the specified cursor is found the call will
+ seek to the next closest entry (in terms of time) instead. To
+ verify whether the newly selected entry actually matches the
+ cursor, use
+ <citerefentry><refentrytitle>sd_journal_test_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
+
+ <para>Note that these calls do not actually make any entry the new
+ current entry, this needs to be done in a separate step with a
+ subsequent
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ invocation (or a similar call). Only then, entry data may be
+ retrieved via
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ If no entry exists that matches exactly the specified seek
+ address, the next closest is sought to. If
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ is used, the closest following entry will be sought to, if
+ <citerefentry><refentrytitle>sd_journal_previous</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ is used the closest preceding entry is sought to.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The functions return 0 on success or a negative errno-style
+ error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_seek_head()</function>,
+ <function>sd_journal_seek_tail()</function>,
+ <function>sd_journal_seek_monotonic_usec()</function>,
+ <function>sd_journal_seek_realtime_usec()</function>,
+ and <function>sd_journal_seek_cursor()</function>
+ interfaces are available as a shared library, which can
+ be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_realtime_usec</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_journal_stream_fd.xml b/src/libsystemd/sd_journal_stream_fd.xml
new file mode 100644
index 0000000000..2ea7731b48
--- /dev/null
+++ b/src/libsystemd/sd_journal_stream_fd.xml
@@ -0,0 +1,163 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_journal_stream_fd">
+
+ <refentryinfo>
+ <title>sd_journal_stream_fd</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_journal_stream_fd</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_stream_fd</refname>
+ <refpurpose>Create log stream file descriptor to the journal</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_stream_fd</function></funcdef>
+ <paramdef>const char *<parameter>identifier</parameter></paramdef>
+ <paramdef>int <parameter>priority</parameter></paramdef>
+ <paramdef>int <parameter>level_prefix</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_stream_fd()</function> may be used to
+ create a log stream file descriptor. Log messages written to this
+ file descriptor as simple newline-separated text strings are
+ written to the journal. This file descriptor can be used
+ internally by applications or be made standard output or standard
+ error of other processes executed.</para>
+
+ <para><function>sd_journal_stream_fd()</function> takes a short
+ program identifier string as first argument, which will be written
+ to the journal as _SYSLOG_IDENTIFIER= field for each log entry
+ (see
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ for more information). The second argument shall be the default
+ priority level for all messages. The priority level is one of
+ <constant>LOG_EMERG</constant>, <constant>LOG_ALERT</constant>,
+ <constant>LOG_CRIT</constant>, <constant>LOG_ERR</constant>,
+ <constant>LOG_WARNING</constant>, <constant>LOG_NOTICE</constant>,
+ <constant>LOG_INFO</constant>, <constant>LOG_DEBUG</constant>, as
+ defined in <filename>syslog.h</filename>, see
+ <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for details. The third argument is a boolean: if true kernel-style
+ log level prefixes (such as <constant>SD_WARNING</constant>) are
+ interpreted, see
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for more information.</para>
+
+ <para>It is recommended that applications log UTF-8 messages only
+ with this API, but this is not enforced.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>The call returns a valid write-only file descriptor on
+ success or a negative errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_stream_fd()</function> interface is
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>Creating a log stream suitable for
+ <citerefentry project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>:</para>
+
+ <programlisting>#include &lt;syslog.h&gt;
+#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;unistd.h&gt;
+#include &lt;systemd/sd-journal.h&gt;
+#include &lt;systemd/sd-daemon.h&gt;
+
+int main(int argc, char *argv[]) {
+ int fd;
+ FILE *log;
+ fd = sd_journal_stream_fd("test", LOG_INFO, 1);
+ if (fd &lt; 0) {
+ fprintf(stderr, "Failed to create stream fd: %s\n", strerror(-fd));
+ return 1;
+ }
+ log = fdopen(fd, "w");
+ if (!log) {
+ fprintf(stderr, "Failed to create file object: %m\n");
+ close(fd);
+ return 1;
+ }
+ fprintf(log, "Hello World!\n");
+ fprintf(log, SD_WARNING "This is a warning!\n");
+ fclose(log);
+ return 0;
+}</programlisting>
+
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_print</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_listen_fds.xml b/src/libsystemd/sd_listen_fds.xml
new file mode 100644
index 0000000000..93bf8d853f
--- /dev/null
+++ b/src/libsystemd/sd_listen_fds.xml
@@ -0,0 +1,257 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_listen_fds"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_listen_fds</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_listen_fds</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_listen_fds</refname>
+ <refname>sd_listen_fds_with_names</refname>
+ <refname>SD_LISTEN_FDS_START</refname>
+ <refpurpose>Check for file descriptors passed by the system manager</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-daemon.h&gt;</funcsynopsisinfo>
+
+ <funcsynopsisinfo>#define SD_LISTEN_FDS_START 3</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_listen_fds</function></funcdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_listen_fds_with_names</function></funcdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>char*** <parameter>names</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_listen_fds()</function> may be invoked by a
+ daemon to check for file descriptors passed by the service manager as
+ part of the socket-based activation logic. It returns the number
+ of received file descriptors. If no file descriptors have been
+ received, zero is returned. The first file descriptor may be found
+ at file descriptor number 3
+ (i.e. <constant>SD_LISTEN_FDS_START</constant>), the remaining
+ descriptors follow at 4, 5, 6, ..., if any.</para>
+
+ <para>If a daemon receives more than one file descriptor, they
+ will be passed in the same order as configured in the systemd
+ socket unit file (see
+ <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details). Nonetheless, it is recommended to verify the correct
+ socket types before using them. To simplify this checking, the
+ functions
+ <citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_socket</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_socket_inet</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_socket_unix</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ are provided. In order to maximize flexibility, it is recommended
+ to make these checks as loose as possible without allowing
+ incorrect setups. i.e. often, the actual port number a socket is
+ bound to matters little for the service to work, hence it should
+ not be verified. On the other hand, whether a socket is a datagram
+ or stream socket matters a lot for the most common program logics
+ and should be checked.</para>
+
+ <para>This function call will set the FD_CLOEXEC flag for all
+ passed file descriptors to avoid further inheritance to children
+ of the calling process.</para>
+
+ <para>If multiple socket units activate the same service, the order
+ of the file descriptors passed to its main process is undefined.
+ If additional file descriptors have been passed to the service
+ manager using
+ <citerefentry><refentrytitle>sd_pid_notify_with_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>'s
+ <literal>FDSTORE=1</literal> messages, these file descriptors are
+ passed last, in arbitrary order, and with duplicates
+ removed.</para>
+
+ <para>If the <parameter>unset_environment</parameter> parameter is
+ non-zero, <function>sd_listen_fds()</function> will unset the
+ <varname>$LISTEN_FDS</varname>, <varname>$LISTEN_PID</varname> and
+ <varname>$LISTEN_FDNAMES</varname> environment variables before
+ returning (regardless of whether the function call itself
+ succeeded or not). Further calls to
+ <function>sd_listen_fds()</function> will then return zero, but the
+ variables are no longer inherited by child processes.</para>
+
+ <para><function>sd_listen_fds_with_names()</function> is like
+ <function>sd_listen_fds()</function>, but optionally also returns
+ an array of strings with identification names for the passed file
+ descriptors, if that is available and the
+ <parameter>names</parameter> parameter is non-NULL. This
+ information is read from the <varname>$LISTEN_FDNAMES</varname>
+ variable, which may contain a colon-separated list of names. For
+ socket-activated services, these names may be configured with the
+ <varname>FileDescriptorName=</varname> setting in socket unit
+ files, see
+ <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details. For file descriptors pushed into the file descriptor
+ store (see above), the name is set via the
+ <varname>FDNAME=</varname> field transmitted via
+ <function>sd_pid_notify_with_fds()</function>. The primary usecase
+ for these names are services which accept a variety of file
+ descriptors which are not recognizable with functions like
+ <function>sd_is_socket()</function> alone, and thus require
+ identification via a name. It is recommended to rely on named file
+ descriptors only if identification via
+ <function>sd_is_socket()</function> and related calls is not
+ sufficient. Note that the names used are not unique in any
+ way. The returned array of strings has as many entries as file
+ descriptors have been received, plus a final NULL pointer
+ terminating the array. The caller needs to free the array itself
+ and each of its elements with libc's <function>free()</function>
+ call after use. If the <parameter>names</parameter> parameter is
+ NULL, the call is entirely equivalent to
+ <function>sd_listen_fds()</function>.</para>
+
+ <para>Under specific conditions, the following automatic file
+ descriptor names are returned:
+
+ <table>
+ <title>
+ <command>Special names</command>
+ </title>
+
+ <tgroup cols='2'>
+ <thead>
+ <row>
+ <entry>Name</entry>
+ <entry>Description</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry><literal>unknown</literal></entry>
+ <entry>The process received no name for the specific file descriptor from the service manager.</entry>
+ </row>
+
+ <row>
+ <entry><literal>stored</literal></entry>
+ <entry>The file descriptor originates in the service manager's per-service file descriptor store, and the <varname>FDNAME=</varname> field was absent when the file descriptor was submitted to the service manager.</entry>
+ </row>
+
+ <row>
+ <entry><literal>connection</literal></entry>
+ <entry>The service was activated in per-connection style using <varname>Accept=yes</varname> in the socket unit file, and the file descriptor is the connection socket.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On failure, these calls returns a negative errno-style error
+ code. If
+ <varname>$LISTEN_FDS</varname>/<varname>$LISTEN_PID</varname> was
+ not set or was not correctly set for this daemon and hence no file
+ descriptors were received, 0 is returned. Otherwise, the number of
+ file descriptors passed is returned. The application may find them
+ starting with file descriptor SD_LISTEN_FDS_START, i.e. file
+ descriptor 3.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
+
+ <para>Internally, <function>sd_listen_fds()</function> checks
+ whether the <varname>$LISTEN_PID</varname> environment variable
+ equals the daemon PID. If not, it returns immediately. Otherwise,
+ it parses the number passed in the <varname>$LISTEN_FDS</varname>
+ environment variable, then sets the FD_CLOEXEC flag for the parsed
+ number of file descriptors starting from SD_LISTEN_FDS_START.
+ Finally, it returns the parsed
+ number. <function>sd_listen_fds_with_names()</function> does the
+ same but also parses <varname>$LISTEN_FDNAMES</varname> if
+ set.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Environment</title>
+
+ <variablelist class='environment-variables'>
+ <varlistentry>
+ <term><varname>$LISTEN_PID</varname></term>
+ <term><varname>$LISTEN_FDS</varname></term>
+ <term><varname>$LISTEN_FDNAMES</varname></term>
+
+ <listitem><para>Set by the service manager for supervised
+ processes that use socket-based activation. This environment
+ variable specifies the data
+ <function>sd_listen_fds()</function> and
+ <function>sd_listen_fds_with_names()</function> parses. See
+ above for details.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_fifo</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_socket</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_socket_inet</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_is_socket_unix</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_pid_notify_with_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.socket</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_login_monitor_new.xml b/src/libsystemd/sd_login_monitor_new.xml
new file mode 100644
index 0000000000..5625ab9207
--- /dev/null
+++ b/src/libsystemd/sd_login_monitor_new.xml
@@ -0,0 +1,287 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_login_monitor_new" conditional='HAVE_PAM'>
+
+ <refentryinfo>
+ <title>sd_login_monitor_new</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_login_monitor_new</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_login_monitor_new</refname>
+ <refname>sd_login_monitor_unref</refname>
+ <refname>sd_login_monitor_unrefp</refname>
+ <refname>sd_login_monitor_flush</refname>
+ <refname>sd_login_monitor_get_fd</refname>
+ <refname>sd_login_monitor_get_events</refname>
+ <refname>sd_login_monitor_get_timeout</refname>
+ <refname>sd_login_monitor</refname>
+ <refpurpose>Monitor login sessions, seats, users and virtual machines/containers</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_login_monitor_new</function></funcdef>
+ <paramdef>const char *<parameter>category</parameter></paramdef>
+ <paramdef>sd_login_monitor **<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>sd_login_monitor *<function>sd_login_monitor_unref</function></funcdef>
+ <paramdef>sd_login_monitor *<parameter>m</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>void <function>sd_login_monitor_unrefp</function></funcdef>
+ <paramdef>sd_login_monitor **<parameter>m</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_login_monitor_flush</function></funcdef>
+ <paramdef>sd_login_monitor *<parameter>m</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_login_monitor_get_fd</function></funcdef>
+ <paramdef>sd_login_monitor *<parameter>m</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_login_monitor_get_events</function></funcdef>
+ <paramdef>sd_login_monitor *<parameter>m</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_login_monitor_get_timeout</function></funcdef>
+ <paramdef>sd_login_monitor *<parameter>m</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>timeout_usec</parameter></paramdef>
+ </funcprototype>
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_login_monitor_new()</function> may be used to
+ monitor login sessions, users, seats, and virtual
+ machines/containers. Via a monitor object a file descriptor can be
+ integrated into an application defined event loop which is woken
+ up each time a user logs in, logs out or a seat is added or
+ removed, or a session, user, seat or virtual machine/container
+ changes state otherwise. The first parameter takes a string which
+ can be <literal>seat</literal> (to get only notifications about
+ seats being added, removed or changed), <literal>session</literal>
+ (to get only notifications about sessions being created or removed
+ or changed), <literal>uid</literal> (to get only notifications
+ when a user changes state in respect to logins) or
+ <literal>machine</literal> (to get only notifications when a
+ virtual machine or container is started or stopped). If
+ notifications shall be generated in all these conditions,
+ <constant>NULL</constant> may be passed. Note that in the future
+ additional categories may be defined. The second parameter returns
+ a monitor object and needs to be freed with the
+ <function>sd_login_monitor_unref()</function> call after
+ use.</para>
+
+ <para><function>sd_login_monitor_unref()</function> may be used to
+ destroy a monitor object. Note that this will invalidate any file
+ descriptor returned by
+ <function>sd_login_monitor_get_fd()</function>.</para>
+
+ <para><function>sd_login_monitor_unrefp()</function> is similar to
+ <function>sd_login_monitor_unref()</function> but takes a pointer
+ to a pointer to an <type>sd_login_monitor</type> object. This call
+ is useful in conjunction with GCC's and LLVM's <ulink
+ url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up
+ Variable Attribute</ulink>. Note that this function is defined as
+ inline function. Use a declaration like the following, in order to
+ allocate a login monitor object that is freed automatically as the
+ code block is left:</para>
+
+ <programlisting>{
+ __attribute__((cleanup(sd_login_monitor_unrefp)) sd_login_monitor *m = NULL;
+ int r;
+ …
+ r = sd_login_monitor_default(&amp;m);
+ if (r &lt; 0)
+ fprintf(stderr, "Failed to allocate login monitor object: %s\n", strerror(-r));
+ …
+}</programlisting>
+
+ <para><function>sd_login_monitor_flush()</function> may be used to
+ reset the wakeup state of the monitor object. Whenever an event
+ causes the monitor to wake up the event loop via the file
+ descriptor this function needs to be called to reset the wake-up
+ state. If this call is not invoked, the file descriptor will
+ immediately wake up the event loop again.</para>
+
+ <para><function>sd_login_monitor_unref()</function> and
+ <function>sd_login_monitor_unrefp()</function> execute no
+ operation if the passed in monitor object is
+ <constant>NULL</constant>.</para>
+
+ <para><function>sd_login_monitor_get_fd()</function> may be used
+ to retrieve the file descriptor of the monitor object that may be
+ integrated in an application defined event loop, based around
+ <citerefentry><refentrytitle>poll</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ or a similar interface. The application should include the
+ returned file descriptor as wake-up source for the events mask
+ returned by <function>sd_login_monitor_get_events()</function>. It
+ should pass a timeout value as returned by
+ <function>sd_login_monitor_get_timeout()</function>. Whenever a
+ wake-up is triggered the file descriptor needs to be reset via
+ <function>sd_login_monitor_flush()</function>. An application
+ needs to reread the login state with a function like
+ <citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ or similar to determine what changed.</para>
+
+ <para><function>sd_login_monitor_get_events()</function> will
+ return the <function>poll()</function> mask to wait for. This
+ function will return a combination of <constant>POLLIN</constant>,
+ <constant>POLLOUT</constant> and similar to fill into the
+ <literal>.events</literal> field of <varname>struct
+ pollfd</varname>.</para>
+
+ <para><function>sd_login_monitor_get_timeout()</function> will
+ return a timeout value for usage in <function>poll()</function>.
+ This returns a value in microseconds since the epoch of
+ <constant>CLOCK_MONOTONIC</constant> for timing out
+ <function>poll()</function> in <varname>timeout_usec</varname>.
+ See
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ for details about <constant>CLOCK_MONOTONIC</constant>. If there
+ is no timeout to wait for this will fill in <constant>(uint64_t)
+ -1</constant> instead. Note that <function>poll()</function> takes
+ a relative timeout in milliseconds rather than an absolute timeout
+ in microseconds. To convert the absolute 'µs' timeout into
+ relative 'ms', use code like the following:</para>
+
+ <programlisting>uint64_t t;
+int msec;
+sd_login_monitor_get_timeout(m, &amp;t);
+if (t == (uint64_t) -1)
+ msec = -1;
+else {
+ struct timespec ts;
+ uint64_t n;
+ clock_getttime(CLOCK_MONOTONIC, &amp;ts);
+ n = (uint64_t) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
+ msec = t > n ? (int) ((t - n + 999) / 1000) : 0;
+}</programlisting>
+
+ <para>The code above does not do any error checking for brevity's
+ sake. The calculated <varname>msec</varname> integer can be passed
+ directly as <function>poll()</function>'s timeout
+ parameter.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success,
+ <function>sd_login_monitor_new()</function>,
+ <function>sd_login_monitor_flush()</function> and
+ <function>sd_login_monitor_get_timeout()</function>
+ return 0 or a positive integer. On success,
+ <function>sd_login_monitor_get_fd()</function> returns
+ a Unix file descriptor. On success,
+ <function>sd_login_monitor_get_events()</function>
+ returns a combination of <constant>POLLIN</constant>,
+ <constant>POLLOUT</constant> and suchlike. On failure,
+ these calls return a negative errno-style error
+ code.</para>
+
+ <para><function>sd_login_monitor_unref()</function>
+ always returns <constant>NULL</constant>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted). The specified category to
+ watch is not known.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_login_monitor_new()</function>,
+ <function>sd_login_monitor_unref()</function>,
+ <function>sd_login_monitor_flush()</function>,
+ <function>sd_login_monitor_get_fd()</function>,
+ <function>sd_login_monitor_get_events()</function> and
+ <function>sd_login_monitor_get_timeout()</function>
+ interfaces are available as a shared library, which can be
+ compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>poll</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>clock_gettime</refentrytitle><manvolnum>2</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_machine_get_class.xml b/src/libsystemd/sd_machine_get_class.xml
new file mode 100644
index 0000000000..ef604139da
--- /dev/null
+++ b/src/libsystemd/sd_machine_get_class.xml
@@ -0,0 +1,152 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_machine_get_class">
+
+ <refentryinfo>
+ <title>sd_machine_get_class</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_machine_get_class</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_machine_get_class</refname>
+ <refname>sd_machine_get_ifindices</refname>
+ <refpurpose>Determine the class and network interface indices of a
+ locally running virtual machine or container.</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_machine_get_class</function></funcdef>
+ <paramdef>const char* <parameter>machine</parameter></paramdef>
+ <paramdef>char **<parameter>class</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_machine_get_ifindices</function></funcdef>
+ <paramdef>const char* <parameter>machine</parameter></paramdef>
+ <paramdef>int **<parameter>ifindices</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_machine_get_class()</function> may be used to
+ determine the class of a locally running virtual machine or
+ container that is registered with
+ <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
+ The string returned is either <literal>vm</literal> or
+ <literal>container</literal>. The returned string needs to be
+ freed with the libc <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_machine_get_ifindices()</function> may be used
+ to determine the numeric indices of the network interfaces on the
+ host that are pointing towards the specified locally running
+ virtual machine or container that is registered with
+ <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
+ The returned array needs to be freed with the libc <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, these calls return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>The specified machine does not exist or is currently not running.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_machine_get_class()</function> and
+ <function>sd_machine_get_ifindices()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_pid_get_machine_name</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_notify.xml b/src/libsystemd/sd_notify.xml
new file mode 100644
index 0000000000..bd6cfdcd29
--- /dev/null
+++ b/src/libsystemd/sd_notify.xml
@@ -0,0 +1,399 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_notify"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_notify</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_notify</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_notify</refname>
+ <refname>sd_notifyf</refname>
+ <refname>sd_pid_notify</refname>
+ <refname>sd_pid_notifyf</refname>
+ <refname>sd_pid_notify_with_fds</refname>
+ <refpurpose>Notify service manager about start-up completion and other service status changes</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-daemon.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_notify</function></funcdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>const char *<parameter>state</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_notifyf</function></funcdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_notify</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>const char *<parameter>state</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_notifyf</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>const char *<parameter>format</parameter></paramdef>
+ <paramdef>...</paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_notify_with_fds</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>const char *<parameter>state</parameter></paramdef>
+ <paramdef>const int *<parameter>fds</parameter></paramdef>
+ <paramdef>unsigned <parameter>n_fds</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+ <para><function>sd_notify()</function> may be called by a service
+ to notify the service manager about state changes. It can be used
+ to send arbitrary information, encoded in an
+ environment-block-like string. Most importantly, it can be used for
+ start-up completion notification.</para>
+
+ <para>If the <parameter>unset_environment</parameter> parameter is
+ non-zero, <function>sd_notify()</function> will unset the
+ <varname>$NOTIFY_SOCKET</varname> environment variable before
+ returning (regardless of whether the function call itself
+ succeeded or not). Further calls to
+ <function>sd_notify()</function> will then fail, but the variable
+ is no longer inherited by child processes.</para>
+
+ <para>The <parameter>state</parameter> parameter should contain a
+ newline-separated list of variable assignments, similar in style
+ to an environment block. A trailing newline is implied if none is
+ specified. The string may contain any kind of variable
+ assignments, but the following shall be considered
+ well-known:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term>READY=1</term>
+
+ <listitem><para>Tells the service manager that service startup
+ is finished. This is only used by systemd if the service
+ definition file has Type=notify set. Since there is little
+ value in signaling non-readiness, the only value services
+ should send is <literal>READY=1</literal> (i.e.
+ <literal>READY=0</literal> is not defined).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>RELOADING=1</term>
+
+ <listitem><para>Tells the service manager that the service is
+ reloading its configuration. This is useful to allow the
+ service manager to track the service's internal state, and
+ present it to the user. Note that a service that sends this
+ notification must also send a <literal>READY=1</literal>
+ notification when it completed reloading its
+ configuration.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>STOPPING=1</term>
+
+ <listitem><para>Tells the service manager that the service is
+ beginning its shutdown. This is useful to allow the service
+ manager to track the service's internal state, and present it
+ to the user.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>STATUS=...</term>
+
+ <listitem><para>Passes a single-line UTF-8 status string back
+ to the service manager that describes the service state. This
+ is free-form and can be used for various purposes: general
+ state feedback, fsck-like programs could pass completion
+ percentages and failing programs could pass a human-readable
+ error message. Example: <literal>STATUS=Completed 66% of file
+ system check...</literal></para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>ERRNO=...</term>
+
+ <listitem><para>If a service fails, the errno-style error
+ code, formatted as string. Example: <literal>ERRNO=2</literal>
+ for ENOENT.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>BUSERROR=...</term>
+
+ <listitem><para>If a service fails, the D-Bus error-style
+ error code. Example:
+ <literal>BUSERROR=org.freedesktop.DBus.Error.TimedOut</literal></para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>MAINPID=...</term>
+
+ <listitem><para>The main process ID (PID) of the service, in
+ case the service manager did not fork off the process itself.
+ Example: <literal>MAINPID=4711</literal></para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>WATCHDOG=1</term>
+
+ <listitem><para>Tells the service manager to update the
+ watchdog timestamp. This is the keep-alive ping that services
+ need to issue in regular intervals if
+ <varname>WatchdogSec=</varname> is enabled for it. See
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for information how to enable this functionality and
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for the details of how the service can check whether the
+ watchdog is enabled. </para></listitem>
+ </varlistentry>
+
+
+ <varlistentry>
+ <term>FDSTORE=1</term>
+
+ <listitem><para>Stores additional file descriptors in the
+ service manager. File descriptors sent this way will be
+ maintained per-service by the service manager and be passed
+ again using the usual file descriptor passing logic on the
+ next invocation of the service (see
+ <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>).
+ This is useful for implementing service restart schemes where
+ services serialize their state to <filename>/run</filename>,
+ push their file descriptors to the system manager, and are
+ then restarted, retrieving their state again via socket
+ passing and <filename>/run</filename>. Note that the service
+ manager will accept messages for a service only if
+ <varname>FileDescriptorStoreMax=</varname> is set to non-zero
+ for it (defaults to zero). See
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details. Multiple arrays of file descriptors may be sent
+ in separate messages, in which case the arrays are combined.
+ Note that the service manager removes duplicate file
+ descriptors before passing them to the service. Use
+ <function>sd_pid_notify_with_fds()</function> to send messages
+ with <literal>FDSTORE=1</literal>, see
+ below.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>FDNAME=...</term>
+
+ <listitem><para>When used in combination with
+ <varname>FDSTORE=1</varname>, specifies a name for the
+ submitted file descriptors. This name is passed to the service
+ during activation, and may be queried using
+ <citerefentry><refentrytitle>sd_listen_fds_with_names</refentrytitle><manvolnum>3</manvolnum></citerefentry>. File
+ descriptors submitted without this field set, will implicitly
+ get the name <literal>stored</literal> assigned. Note that, if
+ multiple file descriptors are submitted at once, the specified
+ name will be assigned to all of them. In order to assign
+ different names to submitted file descriptors, submit them in
+ separate invocations of
+ <function>sd_pid_notify_with_fds()</function>. The name may
+ consist of any ASCII character, but must not contain control
+ characters or <literal>:</literal>. It may not be longer than
+ 255 characters. If a submitted name does not follow these
+ restrictions, it is ignored.</para></listitem>
+ </varlistentry>
+
+ </variablelist>
+
+ <para>It is recommended to prefix variable names that are not
+ listed above with <varname>X_</varname> to avoid namespace
+ clashes.</para>
+
+ <para>Note that systemd will accept status data sent from a
+ service only if the <varname>NotifyAccess=</varname> option is
+ correctly set in the service definition file. See
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details.</para>
+
+ <para><function>sd_notifyf()</function> is similar to
+ <function>sd_notify()</function> but takes a
+ <function>printf()</function>-like format string plus
+ arguments.</para>
+
+ <para><function>sd_pid_notify()</function> and
+ <function>sd_pid_notifyf()</function> are similar to
+ <function>sd_notify()</function> and
+ <function>sd_notifyf()</function> but take a process ID (PID) to
+ use as originating PID for the message as first argument. This is
+ useful to send notification messages on behalf of other processes,
+ provided the appropriate privileges are available. If the PID
+ argument is specified as 0, the process ID of the calling process
+ is used, in which case the calls are fully equivalent to
+ <function>sd_notify()</function> and
+ <function>sd_notifyf()</function>.</para>
+
+ <para><function>sd_pid_notify_with_fds()</function> is similar to
+ <function>sd_pid_notify()</function> but takes an additional array
+ of file descriptors. These file descriptors are sent along the
+ notification message to the service manager. This is particularly
+ useful for sending <literal>FDSTORE=1</literal> messages, as
+ described above. The additional arguments are a pointer to the
+ file descriptor array plus the number of file descriptors in the
+ array. If the number of file descriptors is passed as 0, the call
+ is fully equivalent to <function>sd_pid_notify()</function>, i.e.
+ no file descriptors are passed. Note that sending file descriptors
+ to the service manager on messages that do not expect them (i.e.
+ without <literal>FDSTORE=1</literal>) they are immediately closed
+ on reception.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On failure, these calls return a negative errno-style error
+ code. If <varname>$NOTIFY_SOCKET</varname> was not set and hence
+ no status data could be sent, 0 is returned. If the status was
+ sent, these functions return with a positive return value. In
+ order to support both, init systems that implement this scheme and
+ those which do not, it is generally recommended to ignore the
+ return value of this call.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
+
+ <para>These functions send a single datagram with the
+ state string as payload to the <constant>AF_UNIX</constant> socket
+ referenced in the <varname>$NOTIFY_SOCKET</varname> environment
+ variable. If the first character of
+ <varname>$NOTIFY_SOCKET</varname> is <literal>@</literal>, the
+ string is understood as Linux abstract namespace socket. The
+ datagram is accompanied by the process credentials of the sending
+ service, using SCM_CREDENTIALS.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Environment</title>
+
+ <variablelist class='environment-variables'>
+ <varlistentry>
+ <term><varname>$NOTIFY_SOCKET</varname></term>
+
+ <listitem><para>Set by the service manager for supervised
+ processes for status and start-up completion notification.
+ This environment variable specifies the socket
+ <function>sd_notify()</function> talks to. See above for
+ details.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <example>
+ <title>Start-up Notification</title>
+
+ <para>When a service finished starting up, it might issue the
+ following call to notify the service manager:</para>
+
+ <programlisting>sd_notify(0, "READY=1");</programlisting>
+ </example>
+
+ <example>
+ <title>Extended Start-up Notification</title>
+
+ <para>A service could send the following after completing
+ initialization:</para>
+
+ <programlisting>sd_notifyf(0, "READY=1\n"
+ "STATUS=Processing requests...\n"
+ "MAINPID=%lu",
+ (unsigned long) getpid());</programlisting>
+ </example>
+
+ <example>
+ <title>Error Cause Notification</title>
+
+ <para>A service could send the following shortly before exiting, on failure:</para>
+
+ <programlisting>sd_notifyf(0, "STATUS=Failed to start up: %s\n"
+ "ERRNO=%i",
+ strerror(errno),
+ errno);</programlisting>
+ </example>
+
+ <example>
+ <title>Store a File Descriptor in the Service Manager</title>
+
+ <para>To store an open file descriptor in the service manager,
+ in order to continue operation after a service restart without
+ losing state, use <literal>FDSTORE=1</literal>:</para>
+
+ <programlisting>sd_pid_notify_with_fds(0, 0, "FDSTORE=1\nFDNAME=foobar", &amp;fd, 1);</programlisting>
+ </example>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_listen_fds_with_names</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_watchdog_enabled</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_pid_get_session.xml b/src/libsystemd/sd_pid_get_session.xml
new file mode 100644
index 0000000000..806cff34e4
--- /dev/null
+++ b/src/libsystemd/sd_pid_get_session.xml
@@ -0,0 +1,359 @@
+<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_pid_get_session" conditional='HAVE_PAM'>
+
+ <refentryinfo>
+ <title>sd_pid_get_session</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_pid_get_session</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_pid_get_session</refname>
+ <refname>sd_pid_get_unit</refname>
+ <refname>sd_pid_get_user_unit</refname>
+ <refname>sd_pid_get_owner_uid</refname>
+ <refname>sd_pid_get_machine_name</refname>
+ <refname>sd_pid_get_slice</refname>
+ <refname>sd_pid_get_user_slice</refname>
+ <refname>sd_pid_get_cgroup</refname>
+ <refname>sd_peer_get_session</refname>
+ <refname>sd_peer_get_unit</refname>
+ <refname>sd_peer_get_user_unit</refname>
+ <refname>sd_peer_get_owner_uid</refname>
+ <refname>sd_peer_get_machine_name</refname>
+ <refname>sd_peer_get_slice</refname>
+ <refname>sd_peer_get_user_slice</refname>
+ <refname>sd_peer_get_cgroup</refname>
+ <refpurpose>Determine session, unit, owner of a session,
+ container/VM or slice of a specific PID or socket
+ peer</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_session</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>session</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_unit</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>unit</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_user_unit</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>unit</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_owner_uid</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_machine_name</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>name</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_slice</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_user_slice</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_pid_get_cgroup</function></funcdef>
+ <paramdef>pid_t <parameter>pid</parameter></paramdef>
+ <paramdef>char **<parameter>cgroup</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_session</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>session</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_unit</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>unit</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_user_unit</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>unit</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_owner_uid</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_machine_name</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>name</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_slice</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_user_slice</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>slice</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_peer_get_cgroup</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>char **<parameter>cgroup</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_pid_get_session()</function> may be used to
+ determine the login session identifier of a process identified by
+ the specified process identifier. The session identifier is a
+ short string, suitable for usage in file system paths. Note that
+ not all processes are part of a login session (e.g. system service
+ processes, user processes that are shared between multiple
+ sessions of the same user, or kernel threads). For processes not
+ being part of a login session, this function will fail with
+ -ENODATA. The returned string needs to be freed with the libc
+ <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_pid_get_unit()</function> may be used to
+ determine the systemd system unit (i.e. system service or scope
+ unit) identifier of a process identified by the specified PID. The
+ unit name is a short string, suitable for usage in file system
+ paths. Note that not all processes are part of a system
+ unit/service (e.g. user processes, or kernel threads). For
+ processes not being part of a systemd system unit, this function
+ will fail with -ENODATA. (More specifically, this call will not
+ work for kernel threads.) The returned string needs to be freed
+ with the libc <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_pid_get_user_unit()</function> may be used to
+ determine the systemd user unit (i.e. user service or scope unit)
+ identifier of a process identified by the specified PID. This is
+ similar to <function>sd_pid_get_unit()</function>, but applies to
+ user units instead of system units.</para>
+
+ <para><function>sd_pid_get_owner_uid()</function> may be used to
+ determine the Unix UID (user identifier) of the owner of the
+ session of a process identified the specified PID. Note that this
+ function will succeed for user processes which are shared between
+ multiple login sessions of the same user, whereas
+ <function>sd_pid_get_session()</function> will fail. For processes
+ not being part of a login session and not being a shared process
+ of a user, this function will fail with -ENODATA.</para>
+
+ <para><function>sd_pid_get_machine_name()</function> may be used
+ to determine the name of the VM or container is a member of. The
+ machine name is a short string, suitable for usage in file system
+ paths. The returned string needs to be freed with the libc
+ <citerefentry
+ project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use. For processes not part of a VM or containers, this
+ function fails with -ENODATA.</para>
+
+ <para><function>sd_pid_get_slice()</function> may be used to
+ determine the slice unit the process is a member of. See
+ <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details about slices. The returned string needs to be freed
+ with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para>Similarly, <function>sd_pid_get_user_slice()</function>
+ returns the user slice (as managed by the user's systemd instance)
+ of a process.</para>
+
+ <para><function>sd_pid_get_cgroup()</function> returns the control
+ group path of the specified process, relative to the root of the
+ hierarchy. Returns the path without trailing slash, except for
+ processes located in the root control group, where "/" is
+ returned. To find the actual control group path in the file system,
+ the returned path needs to be prefixed with
+ <filename>/sys/fs/cgroup/</filename> (if the unified control group
+ setup is used), or
+ <filename>/sys/fs/cgroup/<replaceable>HIERARCHY</replaceable>/</filename>
+ (if the legacy multi-hierarchy control group setup is used).</para>
+
+ <para>If the <varname>pid</varname> parameter of any of these
+ functions is passed as 0, the operation is executed for the
+ calling process.</para>
+
+ <para>The <function>sd_peer_get_session()</function>,
+ <function>sd_peer_get_unit()</function>,
+ <function>sd_peer_get_user_unit()</function>,
+ <function>sd_peer_get_owner_uid()</function>,
+ <function>sd_peer_get_machine_name()</function>,
+ <function>sd_peer_get_slice()</function>,
+ <function>sd_peer_get_user_slice()</function> and
+ <function>sd_peer_get_cgroup()</function> calls operate similar to
+ their PID counterparts, but operate on a connected AF_UNIX socket
+ and retrieve information about the connected peer process. Note
+ that these fields are retrieved via <filename>/proc</filename>,
+ and hence are not suitable for authorization purposes, as they are
+ subject to races.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, these calls return 0 or a positive integer. On
+ failure, these calls return a negative errno-style error
+ code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ESRCH</constant></term>
+
+ <listitem><para>The specified PID does not refer to a running
+ process.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-BADF</constant></term>
+
+ <listitem><para>The specified socket file descriptor was
+ invalid.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>The given field is not specified for the described
+ process or peer.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_pid_get_session()</function>,
+ <function>sd_pid_get_unit()</function>,
+ <function>sd_pid_get_user_unit()</function>,
+ <function>sd_pid_get_owner_uid()</function>,
+ <function>sd_pid_get_machine_name()</function>,
+ <function>sd_pid_get_slice()</function>,
+ <function>sd_pid_get_user_slice()</function>,
+ <function>sd_peer_get_session()</function>,
+ <function>sd_peer_get_unit()</function>,
+ <function>sd_peer_get_user_unit()</function>,
+ <function>sd_peer_get_owner_uid()</function>,
+ <function>sd_peer_get_machine_name()</function>,
+ <function>sd_peer_get_slice()</function> and
+ <function>sd_peer_get_user_slice()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the <constant>libsystemd</constant> <citerefentry
+ project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+
+ <para>Note that the login session identifier as
+ returned by <function>sd_pid_get_session()</function>
+ is completely unrelated to the process session
+ identifier as returned by
+ <citerefentry><refentrytitle>getsid</refentrytitle><manvolnum>2</manvolnum></citerefentry>.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_session_is_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>getsid</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_seat_get_active.xml b/src/libsystemd/sd_seat_get_active.xml
new file mode 100644
index 0000000000..c5e6ddab02
--- /dev/null
+++ b/src/libsystemd/sd_seat_get_active.xml
@@ -0,0 +1,212 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_seat_get_active" conditional='HAVE_PAM'>
+
+ <refentryinfo>
+ <title>sd_seat_get_active</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_seat_get_active</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_seat_get_active</refname>
+ <refname>sd_seat_get_sessions</refname>
+ <refname>sd_seat_can_multi_session</refname>
+ <refname>sd_seat_can_tty</refname>
+ <refname>sd_seat_can_graphical</refname>
+ <refpurpose>Determine state of a specific seat</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_seat_get_active</function></funcdef>
+ <paramdef>const char *<parameter>seat</parameter></paramdef>
+ <paramdef>char **<parameter>session</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_seat_get_sessions</function></funcdef>
+ <paramdef>const char *<parameter>seat</parameter></paramdef>
+ <paramdef>char ***<parameter>sessions</parameter></paramdef>
+ <paramdef>uid_t **<parameter>uid</parameter></paramdef>
+ <paramdef>unsigned int *<parameter>n_uids</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_seat_can_multi_session</function></funcdef>
+ <paramdef>const char *<parameter>seat</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_seat_can_tty</function></funcdef>
+ <paramdef>const char *<parameter>seat</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_seat_can_graphical</function></funcdef>
+ <paramdef>const char *<parameter>seat</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_seat_get_active()</function> may be used to
+ determine which session is currently active on a seat, if there is
+ any. Returns the session identifier and the user identifier of the
+ Unix user the session is belonging to. Either the session or the
+ user identifier parameter can be passed <constant>NULL</constant>,
+ in case only one of the parameters shall be queried. The returned
+ string needs to be freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_seat_get_sessions()</function> may be used to
+ determine all sessions on the specified seat. Returns two arrays,
+ one (<constant>NULL</constant> terminated) with the session
+ identifiers of the sessions and one with the user identifiers of
+ the Unix users the sessions belong to. An additional parameter may
+ be used to return the number of entries in the latter array. The
+ two arrays and the latter parameter may be passed as
+ <constant>NULL</constant> in case these values need not to be
+ determined. The arrays and the strings referenced by them need to
+ be freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use. Note that instead of an empty array
+ <constant>NULL</constant> may be returned and should be considered
+ equivalent to an empty array.</para>
+
+ <para><function>sd_seat_can_multi_session()</function> may be used
+ to determine whether a specific seat is capable of multi-session,
+ i.e. allows multiple login sessions in parallel (with only one
+ being active at a time).</para>
+
+ <para><function>sd_seat_can_tty()</function> may be used to
+ determine whether a specific seat provides TTY functionality, i.e.
+ is useful as a text console.</para>
+
+ <para><function>sd_seat_can_graphical()</function> may be used to
+ determine whether a specific seat provides graphics functionality,
+ i.e. is useful as a graphics display.</para>
+
+ <para>If the <varname>seat</varname> parameter of any of these
+ functions is passed as <constant>NULL</constant>, the operation is
+ executed for the seat of the session of the calling process, if
+ there is any.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para> On success, <function>sd_seat_get_active()</function>
+ returns 0 or a positive integer. On success,
+ <function>sd_seat_get_sessions()</function> returns the number of
+ entries in the session identifier array. If the test succeeds,
+ <function>sd_seat_can_multi_session</function>,
+ <function>sd_seat_can_tty</function> and
+ <function>sd_seat_can_graphical</function> return a positive
+ integer, if it fails 0. On failure, these calls return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>The given field is not specified for the described
+ seat.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>The specified seat is unknown.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_seat_get_active()</function>,
+ <function>sd_seat_get_sessions()</function>,
+ <function>sd_seat_can_multi_session()</function>,
+ <function>sd_seat_can_tty()</function> and
+ <function>sd_seat_can_graphical()</function> interfaces are
+ available as a shared library, which can be compiled and linked to
+ with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_session_get_seat</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_session_is_active.xml b/src/libsystemd/sd_session_is_active.xml
new file mode 100644
index 0000000000..a6076b177a
--- /dev/null
+++ b/src/libsystemd/sd_session_is_active.xml
@@ -0,0 +1,359 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_session_is_active" conditional='HAVE_PAM'>
+
+ <refentryinfo>
+ <title>sd_session_is_active</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_session_is_active</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_session_is_active</refname>
+ <refname>sd_session_is_remote</refname>
+ <refname>sd_session_get_state</refname>
+ <refname>sd_session_get_uid</refname>
+ <refname>sd_session_get_seat</refname>
+ <refname>sd_session_get_service</refname>
+ <refname>sd_session_get_type</refname>
+ <refname>sd_session_get_class</refname>
+ <refname>sd_session_get_desktop</refname>
+ <refname>sd_session_get_display</refname>
+ <refname>sd_session_get_tty</refname>
+ <refname>sd_session_get_vt</refname>
+ <refname>sd_session_get_remote_host</refname>
+ <refname>sd_session_get_remote_user</refname>
+ <refpurpose>Determine state of a specific session</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_is_active</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_is_remote</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_state</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>state</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_uid</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>uid_t *<parameter>uid</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_seat</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>seat</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_service</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>service</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_type</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>type</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_class</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>class</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_desktop</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>desktop</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_display</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>display</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_remote_host</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>remote_host</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_remote_user</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>remote_user</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_tty</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>char **<parameter>tty</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_session_get_vt</function></funcdef>
+ <paramdef>const char *<parameter>session</parameter></paramdef>
+ <paramdef>unsigned int *<parameter>vt</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_session_is_active()</function> may be used to
+ determine whether the session identified by the specified session
+ identifier is currently active (i.e. currently in the foreground
+ and available for user input) or not.</para>
+
+ <para><function>sd_session_is_remote()</function> may be used to
+ determine whether the session identified by the specified session
+ identifier is a remote session (i.e. its remote host is known) or
+ not.</para>
+
+ <para><function>sd_session_get_state()</function> may be used to
+ determine the state of the session identified by the specified
+ session identifier. The following states are currently known:
+ <literal>online</literal> (session logged in, but session not
+ active, i.e. not in the foreground), <literal>active</literal>
+ (session logged in and active, i.e. in the foreground),
+ <literal>closing</literal> (session nominally logged out, but some
+ processes belonging to it are still around). In the future
+ additional states might be defined, client code should be written
+ to be robust in regards to additional state strings being
+ returned. This function is a more generic version of
+ <function>sd_session_is_active()</function>. The returned string
+ needs to be freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_uid()</function> may be used to
+ determine the user identifier of the Unix user the session
+ identified by the specified session identifier belongs to.</para>
+
+ <para><function>sd_session_get_seat()</function> may be used to
+ determine the seat identifier of the seat the session identified
+ by the specified session identifier belongs to. Note that not all
+ sessions are attached to a seat, this call will fail for them. The
+ returned string needs to be freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_service()</function> may be used to
+ determine the name of the service (as passed during PAM session
+ setup) that registered the session identified by the specified
+ session identifier. The returned string needs to be freed with the
+ libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_type()</function> may be used to
+ determine the type of the session identified by the specified
+ session identifier. The returned string is one of
+ <literal>x11</literal>, <literal>wayland</literal>,
+ <literal>tty</literal>, <literal>mir</literal> or
+ <literal>unspecified</literal> and needs to be freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_class()</function> may be used to
+ determine the class of the session identified by the specified
+ session identifier. The returned string is one of
+ <literal>user</literal>, <literal>greeter</literal>,
+ <literal>lock-screen</literal>, or <literal>background</literal>
+ and needs to be freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_desktop()</function> may be used to
+ determine the brand of the desktop running on the session
+ identified by the specified session identifier. This field can be
+ set freely by desktop environments and does not follow any special
+ formatting. However, desktops are strongly recommended to use the
+ same identifiers and capitalization as for
+ <varname>$XDG_CURRENT_DESKTOP</varname>, as defined by the <ulink
+ url="http://standards.freedesktop.org/desktop-entry-spec/latest/">Desktop
+ Entry Specification</ulink>. The returned string needs to be freed
+ with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_display()</function> may be used to
+ determine the X11 display of the session identified by the
+ specified session identifier. The returned string needs to be
+ freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_remote_host()</function> may be
+ used to determine the remote hostname of the session identified by
+ the specified session identifier. The returned string needs to be
+ freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_remote_user()</function> may be
+ used to determine the remote username of the session identified by
+ the specified session identifier. The returned string needs to be
+ freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use. Note that this value is rarely known to the
+ system, and even then should not be relied on.</para>
+
+ <para><function>sd_session_get_tty()</function> may be used to
+ determine the TTY device of the session identified by the
+ specified session identifier. The returned string needs to be
+ freed with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_session_get_vt()</function> may be used to
+ determine the VT number of the session identified by the specified
+ session identifier. This function will return an error if the seat
+ does not support VTs.</para>
+
+ <para>If the <varname>session</varname> parameter of any of these
+ functions is passed as <constant>NULL</constant>, the operation is
+ executed for the session the calling process is a member of, if
+ there is any.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>If the test succeeds,
+ <function>sd_session_is_active()</function> and
+ <function>sd_session_is_remote()</function> return a
+ positive integer; if it fails, 0. On success,
+ <function>sd_session_get_state()</function>,
+ <function>sd_session_get_uid()</function>,
+ <function>sd_session_get_seat()</function>,
+ <function>sd_session_get_service()</function>,
+ <function>sd_session_get_type()</function>,
+ <function>sd_session_get_class()</function>,
+ <function>sd_session_get_display()</function>,
+ <function>sd_session_get_remote_user()</function>,
+ <function>sd_session_get_remote_host()</function> and
+ <function>sd_session_get_tty()</function> return 0 or
+ a positive integer. On failure, these calls return a
+ negative errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>The specified session does not exist.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>The given field is not specified for the described
+ session.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_session_is_active()</function>,
+ <function>sd_session_get_state()</function>,
+ <function>sd_session_get_uid()</function>,
+ <function>sd_session_get_seat()</function>,
+ <function>sd_session_get_service()</function>,
+ <function>sd_session_get_type()</function>,
+ <function>sd_session_get_class()</function>,
+ <function>sd_session_get_display()</function>,
+ <function>sd_session_get_remote_host()</function>,
+ <function>sd_session_get_remote_user()</function> and
+ <function>sd_session_get_tty()</function>
+ interfaces are available as a shared library, which can
+ be compiled and linked to with the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ file.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_pid_get_session</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_uid_get_state.xml b/src/libsystemd/sd_uid_get_state.xml
new file mode 100644
index 0000000000..130af761da
--- /dev/null
+++ b/src/libsystemd/sd_uid_get_state.xml
@@ -0,0 +1,230 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_uid_get_state" conditional='HAVE_PAM'>
+
+ <refentryinfo>
+ <title>sd_uid_get_state</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_uid_get_state</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_uid_get_state</refname>
+ <refname>sd_uid_is_on_seat</refname>
+ <refname>sd_uid_get_sessions</refname>
+ <refname>sd_uid_get_seats</refname>
+ <refname>sd_uid_get_display</refname>
+ <refpurpose>Determine login state of a specific Unix user ID</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_uid_get_state</function></funcdef>
+ <paramdef>uid_t <parameter>uid</parameter></paramdef>
+ <paramdef>char **<parameter>state</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_uid_is_on_seat</function></funcdef>
+ <paramdef>uid_t <parameter>uid</parameter></paramdef>
+ <paramdef>int <parameter>require_active</parameter></paramdef>
+ <paramdef>const char *<parameter>seat</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_uid_get_sessions</function></funcdef>
+ <paramdef>uid_t <parameter>uid</parameter></paramdef>
+ <paramdef>int <parameter>require_active</parameter></paramdef>
+ <paramdef>char ***<parameter>sessions</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_uid_get_seats</function></funcdef>
+ <paramdef>uid_t <parameter>uid</parameter></paramdef>
+ <paramdef>int <parameter>require_active</parameter></paramdef>
+ <paramdef>char ***<parameter>seats</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_uid_get_display</function></funcdef>
+ <paramdef>uid_t <parameter>uid</parameter></paramdef>
+ <paramdef>char **<parameter>session</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_uid_get_state()</function> may be used to
+ determine the login state of a specific Unix user identifier. The
+ following states are currently known: <literal>offline</literal>
+ (user not logged in at all), <literal>lingering</literal> (user
+ not logged in, but some user services running),
+ <literal>online</literal> (user logged in, but not active, i.e.
+ has no session in the foreground), <literal>active</literal> (user
+ logged in, and has at least one active session, i.e. one session
+ in the foreground), <literal>closing</literal> (user not logged
+ in, and not lingering, but some processes are still around). In
+ the future additional states might be defined, client code should
+ be written to be robust in regards to additional state strings
+ being returned. The returned string needs to be freed with the
+ libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use.</para>
+
+ <para><function>sd_uid_is_on_seat()</function> may be used to
+ determine whether a specific user is logged in or active on a
+ specific seat. Accepts a Unix user identifier and a seat
+ identifier string as parameters. The
+ <parameter>require_active</parameter> parameter is a boolean
+ value. If non-zero (true), this function will test if the user is
+ active (i.e. has a session that is in the foreground and accepting
+ user input) on the specified seat, otherwise (false) only if the
+ user is logged in (and possibly inactive) on the specified
+ seat.</para>
+
+ <para><function>sd_uid_get_sessions()</function> may be used to
+ determine the current sessions of the specified user. Accepts a
+ Unix user identifier as parameter. The
+ <parameter>require_active</parameter> parameter controls whether
+ the returned list shall consist of only those sessions where the
+ user is currently active (&gt; 0), where the user is currently
+ online but possibly inactive (= 0), or logged in at all but
+ possibly closing the session (&lt; 0). The call returns a
+ <constant>NULL</constant> terminated string array of session
+ identifiers in <parameter>sessions</parameter> which needs to be
+ freed by the caller with the libc
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ call after use, including all the strings referenced. If the
+ string array parameter is passed as <constant>NULL</constant>, the
+ array will not be filled in, but the return code still indicates
+ the number of current sessions. Note that instead of an empty
+ array <constant>NULL</constant> may be returned and should be
+ considered equivalent to an empty array.</para>
+
+ <para>Similarly, <function>sd_uid_get_seats()</function> may be
+ used to determine the list of seats on which the user currently
+ has sessions. Similar semantics apply, however note that the user
+ may have multiple sessions on the same seat as well as sessions
+ with no attached seat and hence the number of entries in the
+ returned array may differ from the one returned by
+ <function>sd_uid_get_sessions()</function>.</para>
+
+ <para><function>sd_uid_get_display()</function> returns the name
+ of the "primary" session of a user. If the user has graphical
+ sessions, it will be the oldest graphical session. Otherwise, it
+ will be the oldest open session.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On success, <function>sd_uid_get_state()</function> returns
+ 0 or a positive integer. If the test succeeds,
+ <function>sd_uid_is_on_seat()</function> returns a positive
+ integer; if it fails, 0.
+ <function>sd_uid_get_sessions()</function> and
+ <function>sd_uid_get_seats()</function> return the number of
+ entries in the returned arrays.
+ <function>sd_uid_get_display()</function> returns a non-negative
+ code on success. On failure, these calls return a negative
+ errno-style error code.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Errors</title>
+
+ <para>Returned errors may indicate the following problems:</para>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><constant>-ENODATA</constant></term>
+
+ <listitem><para>The given field is not specified for the described
+ user.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENXIO</constant></term>
+
+ <listitem><para>The specified seat is unknown.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-EINVAL</constant></term>
+
+ <listitem><para>An input parameter was invalid (out of range,
+ or NULL, where that is not accepted). This is also returned if
+ the passed user ID is 0xFFFF or 0xFFFFFFFF, which are
+ undefined on Linux.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><constant>-ENOMEM</constant></term>
+
+ <listitem><para>Memory allocation failed.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>Functions described here are available as a shared library,
+ and can be compiled and linked to using the
+ <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ entry.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_pid_get_owner_uid</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/sd_watchdog_enabled.xml b/src/libsystemd/sd_watchdog_enabled.xml
new file mode 100644
index 0000000000..3de9899453
--- /dev/null
+++ b/src/libsystemd/sd_watchdog_enabled.xml
@@ -0,0 +1,169 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="sd_watchdog_enabled"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
+
+ <refentryinfo>
+ <title>sd_watchdog_enabled</title>
+ <productname>systemd</productname>
+
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Lennart</firstname>
+ <surname>Poettering</surname>
+ <email>lennart@poettering.net</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>sd_watchdog_enabled</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_watchdog_enabled</refname>
+ <refpurpose>Check whether the service manager expects watchdog keep-alive notifications from a service</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-daemon.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_watchdog_enabled</function></funcdef>
+ <paramdef>int <parameter>unset_environment</parameter></paramdef>
+ <paramdef>uint64_t *<parameter>usec</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+ <para><function>sd_watchdog_enabled()</function> may be called by
+ a service to detect whether the service manager expects regular
+ keep-alive watchdog notification events from it, and the timeout
+ after which the manager will act on the service if it did not get
+ such a notification.</para>
+
+ <para>If the <varname>$WATCHDOG_USEC</varname> environment
+ variable is set, and the <varname>$WATCHDOG_PID</varname> variable
+ is unset or set to the PID of the current process, the service
+ manager expects notifications from this process. The manager will
+ usually terminate a service when it does not get a notification
+ message within the specified time after startup and after each
+ previous message. It is recommended that a daemon sends a
+ keep-alive notification message to the service manager every half
+ of the time returned here. Notification messages may be sent with
+ <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ with a message string of <literal>WATCHDOG=1</literal>.</para>
+
+ <para>If the <parameter>unset_environment</parameter> parameter is
+ non-zero, <function>sd_watchdog_enabled()</function> will unset
+ the <varname>$WATCHDOG_USEC</varname> and
+ <varname>$WATCHDOG_PID</varname> environment variables before
+ returning (regardless of whether the function call itself
+ succeeded or not). Those variables are no longer inherited by
+ child processes. Further calls to
+ <function>sd_watchdog_enabled()</function> will also return with
+ zero.</para>
+
+ <para>If the <parameter>usec</parameter> parameter is non-NULL,
+ <function>sd_watchdog_enabled()</function> will write the timeout
+ in µs for the watchdog logic to it.</para>
+
+ <para>To enable service supervision with the watchdog logic, use
+ <varname>WatchdogSec=</varname> in service files. See
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details.</para>
+
+ <para>Use
+ <citerefentry><refentrytitle>sd_event_set_watchdog</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ to enable automatic watchdog support in
+ <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>-based event loops.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para>On failure, this call returns a negative errno-style error
+ code. If the service manager expects watchdog keep-alive
+ notification messages to be sent, &gt; 0 is returned, otherwise 0
+ is returned. Only if the return value is &gt; 0, the
+ <parameter>usec</parameter> parameter is valid after the
+ call.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
+
+ <para>Internally, this functions parses the
+ <varname>$WATCHDOG_PID</varname> and
+ <varname>$WATCHDOG_USEC</varname> environment variable. The call
+ will ignore these variables if <varname>$WATCHDOG_PID</varname>
+ does not contain the PID of the current process, under the
+ assumption that in that case, the variables were set for a
+ different process further up the process tree.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Environment</title>
+
+ <variablelist class='environment-variables'>
+ <varlistentry>
+ <term><varname>$WATCHDOG_PID</varname></term>
+
+ <listitem><para>Set by the system manager for supervised
+ process for which watchdog support is enabled, and contains
+ the PID of that process. See above for
+ details.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>$WATCHDOG_USEC</varname></term>
+
+ <listitem><para>Set by the system manager for supervised
+ process for which watchdog support is enabled, and contains
+ the watchdog timeout in µs See above for
+ details.</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_notify</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_event_set_watchdog</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>
diff --git a/src/libsystemd/src/Makefile b/src/libsystemd/src/Makefile
new file mode 100644
index 0000000000..d9769a0376
--- /dev/null
+++ b/src/libsystemd/src/Makefile
@@ -0,0 +1,342 @@
+# -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2010-2012 Lennart Poettering
+# Copyright 2010-2012 Kay Sievers
+# Copyright 2013 Zbigniew Jędrzejewski-Szmek
+# Copyright 2013 David Strauss
+# Copyright 2016 Luke Shumaker
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+libsystemd_internal_la_SOURCES = \
+ src/systemd/sd-bus.h \
+ src/systemd/sd-bus-protocol.h \
+ src/systemd/sd-bus-vtable.h \
+ src/systemd/sd-utf8.h \
+ src/systemd/sd-event.h \
+ src/systemd/sd-netlink.h \
+ src/systemd/sd-resolve.h \
+ src/systemd/sd-login.h \
+ src/systemd/sd-id128.h \
+ src/systemd/sd-daemon.h \
+ src/systemd/sd-path.h \
+ src/systemd/sd-network.h \
+ src/systemd/sd-hwdb.h \
+ src/systemd/sd-device.h \
+ src/libsystemd/libsystemd.sym \
+ src/libsystemd/sd-bus/sd-bus.c \
+ src/libsystemd/sd-bus/bus-control.c \
+ src/libsystemd/sd-bus/bus-control.h \
+ src/libsystemd/sd-bus/bus-error.c \
+ src/libsystemd/sd-bus/bus-error.h \
+ src/libsystemd/sd-bus/bus-common-errors.h \
+ src/libsystemd/sd-bus/bus-common-errors.c \
+ src/libsystemd/sd-bus/bus-internal.c \
+ src/libsystemd/sd-bus/bus-internal.h \
+ src/libsystemd/sd-bus/bus-socket.c \
+ src/libsystemd/sd-bus/bus-socket.h \
+ src/libsystemd/sd-bus/bus-kernel.c \
+ src/libsystemd/sd-bus/bus-kernel.h \
+ src/libsystemd/sd-bus/bus-container.c \
+ src/libsystemd/sd-bus/bus-container.h \
+ src/libsystemd/sd-bus/bus-message.c \
+ src/libsystemd/sd-bus/bus-message.h \
+ src/libsystemd/sd-bus/bus-creds.c \
+ src/libsystemd/sd-bus/bus-creds.h \
+ src/libsystemd/sd-bus/bus-signature.c \
+ src/libsystemd/sd-bus/bus-signature.h \
+ src/libsystemd/sd-bus/bus-type.c \
+ src/libsystemd/sd-bus/bus-type.h \
+ src/libsystemd/sd-bus/bus-match.c \
+ src/libsystemd/sd-bus/bus-match.h \
+ src/libsystemd/sd-bus/bus-bloom.c \
+ src/libsystemd/sd-bus/bus-bloom.h \
+ src/libsystemd/sd-bus/bus-introspect.c \
+ src/libsystemd/sd-bus/bus-introspect.h \
+ src/libsystemd/sd-bus/bus-objects.c \
+ src/libsystemd/sd-bus/bus-objects.h \
+ src/libsystemd/sd-bus/bus-gvariant.c \
+ src/libsystemd/sd-bus/bus-gvariant.h \
+ src/libsystemd/sd-bus/bus-convenience.c \
+ src/libsystemd/sd-bus/bus-track.c \
+ src/libsystemd/sd-bus/bus-track.h \
+ src/libsystemd/sd-bus/bus-slot.c \
+ src/libsystemd/sd-bus/bus-slot.h \
+ src/libsystemd/sd-bus/bus-protocol.h \
+ src/libsystemd/sd-bus/kdbus.h \
+ src/libsystemd/sd-bus/bus-dump.c \
+ src/libsystemd/sd-bus/bus-dump.h \
+ src/libsystemd/sd-utf8/sd-utf8.c \
+ src/libsystemd/sd-event/sd-event.c \
+ src/libsystemd/sd-netlink/sd-netlink.c \
+ src/libsystemd/sd-netlink/netlink-internal.h \
+ src/libsystemd/sd-netlink/netlink-message.c \
+ src/libsystemd/sd-netlink/netlink-socket.c \
+ src/libsystemd/sd-netlink/rtnl-message.c \
+ src/libsystemd/sd-netlink/netlink-types.h \
+ src/libsystemd/sd-netlink/netlink-types.c \
+ src/libsystemd/sd-netlink/netlink-util.h \
+ src/libsystemd/sd-netlink/netlink-util.c \
+ src/libsystemd/sd-netlink/local-addresses.h \
+ src/libsystemd/sd-netlink/local-addresses.c \
+ src/libsystemd/sd-id128/sd-id128.c \
+ src/libsystemd/sd-daemon/sd-daemon.c \
+ src/libsystemd/sd-login/sd-login.c \
+ src/libsystemd/sd-path/sd-path.c \
+ src/libsystemd/sd-network/sd-network.c \
+ src/libsystemd/sd-network/network-util.h \
+ src/libsystemd/sd-network/network-util.c \
+ src/libsystemd/sd-hwdb/sd-hwdb.c \
+ src/libsystemd/sd-hwdb/hwdb-util.h \
+ src/libsystemd/sd-hwdb/hwdb-internal.h \
+ src/libsystemd/sd-device/device-internal.h \
+ src/libsystemd/sd-device/device-util.h \
+ src/libsystemd/sd-device/device-enumerator.c \
+ src/libsystemd/sd-device/device-enumerator-private.h \
+ src/libsystemd/sd-device/sd-device.c \
+ src/libsystemd/sd-device/device-private.c \
+ src/libsystemd/sd-device/device-private.h \
+ src/libsystemd/sd-resolve/sd-resolve.c
+
+libsystemd_internal_la_LIBADD = \
+ libbasic.la \
+ -lresolv
+
+noinst_LTLIBRARIES += \
+ libsystemd-internal.la
+
+test_bus_marshal_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-marshal.c
+
+test_bus_marshal_LDADD = \
+ libshared.la \
+ $(GLIB_LIBS) \
+ $(DBUS_LIBS)
+
+test_bus_marshal_CFLAGS = \
+ $(AM_CFLAGS) \
+ $(GLIB_CFLAGS) \
+ $(DBUS_CFLAGS)
+
+test_bus_signature_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-signature.c
+
+test_bus_signature_LDADD = \
+ libshared.la
+
+test_bus_chat_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-chat.c
+
+test_bus_chat_LDADD = \
+ libshared.la
+
+test_bus_cleanup_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-cleanup.c
+
+test_bus_cleanup_CFLAGS = \
+ $(AM_CFLAGS) \
+ $(SECCOMP_CFLAGS)
+
+test_bus_cleanup_LDADD = \
+ libshared.la
+
+test_bus_server_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-server.c
+
+test_bus_server_LDADD = \
+ libshared.la
+
+test_bus_objects_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-objects.c
+
+test_bus_objects_LDADD = \
+ libshared.la
+
+test_bus_error_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-error.c
+
+test_bus_error_LDADD = \
+ libshared.la
+
+test_bus_gvariant_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-gvariant.c
+
+test_bus_gvariant_LDADD = \
+ libshared.la \
+ $(GLIB_LIBS)
+
+test_bus_gvariant_CFLAGS = \
+ $(AM_CFLAGS) \
+ $(GLIB_CFLAGS)
+
+test_bus_creds_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-creds.c
+
+test_bus_creds_LDADD = \
+ libshared.la
+
+test_bus_match_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-match.c
+
+test_bus_match_LDADD = \
+ libshared.la
+
+test_bus_kernel_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-kernel.c
+
+test_bus_kernel_LDADD = \
+ libshared.la
+
+test_bus_kernel_bloom_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-kernel-bloom.c
+
+test_bus_kernel_bloom_LDADD = \
+ libshared.la
+
+test_bus_benchmark_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-benchmark.c
+
+test_bus_benchmark_LDADD = \
+ libshared.la
+
+test_bus_zero_copy_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-zero-copy.c
+
+test_bus_zero_copy_LDADD = \
+ libshared.la
+
+test_bus_introspect_SOURCES = \
+ src/libsystemd/sd-bus/test-bus-introspect.c
+
+test_bus_introspect_LDADD = \
+ libshared.la
+
+test_event_SOURCES = \
+ src/libsystemd/sd-event/test-event.c
+
+test_event_LDADD = \
+ libshared.la
+
+test_netlink_SOURCES = \
+ src/libsystemd/sd-netlink/test-netlink.c
+
+test_netlink_LDADD = \
+ libshared.la
+
+test_local_addresses_SOURCES = \
+ src/libsystemd/sd-netlink/test-local-addresses.c
+
+test_local_addresses_LDADD = \
+ libshared.la
+
+test_resolve_SOURCES = \
+ src/libsystemd/sd-resolve/test-resolve.c
+
+test_resolve_LDADD = \
+ libshared.la
+
+pkginclude_HEADERS += \
+ src/systemd/sd-journal.h \
+ src/systemd/sd-messages.h \
+ src/systemd/_sd-common.h
+
+libsystemd_journal_internal_la_SOURCES = \
+ src/journal/sd-journal.c \
+ src/systemd/sd-journal.h \
+ src/systemd/_sd-common.h \
+ src/journal/journal-file.c \
+ src/journal/journal-file.h \
+ src/journal/journal-vacuum.c \
+ src/journal/journal-vacuum.h \
+ src/journal/journal-verify.c \
+ src/journal/journal-verify.h \
+ src/journal/lookup3.c \
+ src/journal/lookup3.h \
+ src/journal/journal-send.c \
+ src/journal/journal-def.h \
+ src/journal/compress.h \
+ src/journal/catalog.c \
+ src/journal/catalog.h \
+ src/journal/mmap-cache.c \
+ src/journal/mmap-cache.h \
+ src/journal/compress.c \
+ src/journal/audit-type.h \
+ src/journal/audit-type.c \
+ src/shared/gcrypt-util.h \
+ src/shared/gcrypt-util.c
+
+nodist_libsystemd_journal_internal_la_SOURCES = \
+ src/journal/audit_type-to-name.h
+
+gperf_txt_sources += \
+ src/journal/audit_type-list.txt
+
+# using _CFLAGS = in the conditional below would suppress AM_CFLAGS
+libsystemd_journal_internal_la_CFLAGS = \
+ $(AM_CFLAGS)
+
+libsystemd_journal_internal_la_LIBADD =
+
+ifneq ($(HAVE_XZ),)
+libsystemd_journal_internal_la_CFLAGS += \
+ $(XZ_CFLAGS)
+
+libsystemd_journal_internal_la_LIBADD += \
+ $(XZ_LIBS)
+endif # HAVE_XZ
+
+ifneq ($(HAVE_LZ4),)
+libsystemd_journal_internal_la_CFLAGS += \
+ $(LZ4_CFLAGS)
+
+libsystemd_journal_internal_la_LIBADD += \
+ $(LZ4_LIBS)
+endif # HAVE_LZ4
+
+ifneq ($(HAVE_GCRYPT),)
+libsystemd_journal_internal_la_SOURCES += \
+ src/journal/journal-authenticate.c \
+ src/journal/journal-authenticate.h \
+ src/journal/fsprg.c \
+ src/journal/fsprg.h
+
+libsystemd_journal_internal_la_LIBADD += \
+ $(GCRYPT_LIBS)
+
+# fsprg.c is a drop-in file using void pointer arithmetic
+libsystemd_journal_internal_la_CFLAGS += \
+ $(GCRYPT_CFLAGS) \
+ -Wno-pointer-arith
+endif # HAVE_GCRYPT
+
+noinst_LTLIBRARIES += \
+ libsystemd-journal-internal.la
+
+nested.subdirs += sd-bus
+nested.subdirs += sd-daemon
+nested.subdirs += sd-device
+nested.subdirs += sd-event
+nested.subdirs += sd-hwdb
+nested.subdirs += sd-id128
+nested.subdirs += sd-journal
+nested.subdirs += sd-login
+nested.subdirs += sd-netlink
+nested.subdirs += sd-network
+nested.subdirs += sd-resolve
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/libsystemd/sd-bus/DIFFERENCES b/src/libsystemd/src/sd-bus/DIFFERENCES
index db269675a7..db269675a7 100644
--- a/src/libsystemd/sd-bus/DIFFERENCES
+++ b/src/libsystemd/src/sd-bus/DIFFERENCES
diff --git a/src/libsystemd/sd-bus/GVARIANT-SERIALIZATION b/src/libsystemd/src/sd-bus/GVARIANT-SERIALIZATION
index 6aeb11364a..6aeb11364a 100644
--- a/src/libsystemd/sd-bus/GVARIANT-SERIALIZATION
+++ b/src/libsystemd/src/sd-bus/GVARIANT-SERIALIZATION
diff --git a/src/libsystemd/src/sd-bus/Makefile b/src/libsystemd/src/sd-bus/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-bus/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-bus/PORTING-DBUS1 b/src/libsystemd/src/sd-bus/PORTING-DBUS1
index 2dedb28bcf..2dedb28bcf 100644
--- a/src/libsystemd/sd-bus/PORTING-DBUS1
+++ b/src/libsystemd/src/sd-bus/PORTING-DBUS1
diff --git a/src/libsystemd/sd-bus/bus-bloom.c b/src/libsystemd/src/sd-bus/bus-bloom.c
index 112769fcb6..9327fb40c7 100644
--- a/src/libsystemd/sd-bus/bus-bloom.c
+++ b/src/libsystemd/src/sd-bus/bus-bloom.c
@@ -17,9 +17,10 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "basic/siphash24.h"
+#include "basic/util.h"
+
#include "bus-bloom.h"
-#include "siphash24.h"
-#include "util.h"
static inline void set_bit(uint64_t filter[], unsigned long b) {
filter[b >> 6] |= 1ULL << (b & 63);
diff --git a/src/libsystemd/sd-bus/bus-bloom.h b/src/libsystemd/src/sd-bus/bus-bloom.h
index c824622b95..c824622b95 100644
--- a/src/libsystemd/sd-bus/bus-bloom.h
+++ b/src/libsystemd/src/sd-bus/bus-bloom.h
diff --git a/src/libsystemd/sd-bus/bus-common-errors.c b/src/libsystemd/src/sd-bus/bus-common-errors.c
index 02e3bf904c..a19e98e94b 100644
--- a/src/libsystemd/sd-bus/bus-common-errors.c
+++ b/src/libsystemd/src/sd-bus/bus-common-errors.c
@@ -19,7 +19,7 @@
#include <errno.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
#include "bus-common-errors.h"
#include "bus-error.h"
diff --git a/src/libsystemd/sd-bus/bus-common-errors.h b/src/libsystemd/src/sd-bus/bus-common-errors.h
index c8f369cb78..c8f369cb78 100644
--- a/src/libsystemd/sd-bus/bus-common-errors.h
+++ b/src/libsystemd/src/sd-bus/bus-common-errors.h
diff --git a/src/libsystemd/sd-bus/bus-container.c b/src/libsystemd/src/sd-bus/bus-container.c
index 3191d27ded..43b9d03aa9 100644
--- a/src/libsystemd/sd-bus/bus-container.c
+++ b/src/libsystemd/src/sd-bus/bus-container.c
@@ -20,12 +20,13 @@
#include <fcntl.h>
#include <unistd.h>
+#include "basic/fd-util.h"
+#include "basic/process-util.h"
+#include "basic/util.h"
+
#include "bus-container.h"
#include "bus-internal.h"
#include "bus-socket.h"
-#include "fd-util.h"
-#include "process-util.h"
-#include "util.h"
int bus_container_connect_socket(sd_bus *b) {
_cleanup_close_pair_ int pair[2] = { -1, -1 };
diff --git a/src/libsystemd/sd-bus/bus-container.h b/src/libsystemd/src/sd-bus/bus-container.h
index 509ef45624..5cd6d15ede 100644
--- a/src/libsystemd/sd-bus/bus-container.h
+++ b/src/libsystemd/src/sd-bus/bus-container.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
int bus_container_connect_socket(sd_bus *b);
int bus_container_connect_kernel(sd_bus *b);
diff --git a/src/libsystemd/sd-bus/bus-control.c b/src/libsystemd/src/sd-bus/bus-control.c
index 52128e7b5c..689b70bc60 100644
--- a/src/libsystemd/sd-bus/bus-control.c
+++ b/src/libsystemd/src/sd-bus/bus-control.c
@@ -24,19 +24,20 @@
#include <errno.h>
#include <stddef.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/capability-util.h"
+#include "basic/stdio-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/user-util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-bloom.h"
#include "bus-control.h"
#include "bus-internal.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "capability-util.h"
-#include "stdio-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "user-util.h"
_public_ int sd_bus_get_unique_name(sd_bus *bus, const char **unique) {
int r;
diff --git a/src/libsystemd/sd-bus/bus-control.h b/src/libsystemd/src/sd-bus/bus-control.h
index c181aa7959..229c95efb0 100644
--- a/src/libsystemd/sd-bus/bus-control.h
+++ b/src/libsystemd/src/sd-bus/bus-control.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
#include "bus-match.h"
diff --git a/src/libsystemd/sd-bus/bus-convenience.c b/src/libsystemd/src/sd-bus/bus-convenience.c
index 2d06bf541f..f76cbaf3d3 100644
--- a/src/libsystemd/sd-bus/bus-convenience.c
+++ b/src/libsystemd/src/sd-bus/bus-convenience.c
@@ -17,12 +17,13 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "basic/string-util.h"
+#include "shared/bus-util.h"
+
#include "bus-internal.h"
#include "bus-message.h"
#include "bus-signature.h"
#include "bus-type.h"
-#include "bus-util.h"
-#include "string-util.h"
_public_ int sd_bus_emit_signal(
sd_bus *bus,
diff --git a/src/libsystemd/sd-bus/bus-creds.c b/src/libsystemd/src/sd-bus/bus-creds.c
index c4f693dee9..bc5a82fac4 100644
--- a/src/libsystemd/sd-bus/bus-creds.c
+++ b/src/libsystemd/src/sd-bus/bus-creds.c
@@ -17,28 +17,30 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <linux/capability.h>
#include <stdlib.h>
-#include "alloc-util.h"
-#include "audit-util.h"
+#include <linux/capability.h>
+
+#include "basic/alloc-util.h"
+#include "basic/audit-util.h"
+#include "basic/bus-label.h"
+#include "basic/capability-util.h"
+#include "basic/cgroup-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/formats-util.h"
+#include "basic/hexdecoct.h"
+#include "basic/parse-util.h"
+#include "basic/process-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/terminal-util.h"
+#include "basic/user-util.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
+
#include "bus-creds.h"
-#include "bus-label.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "capability-util.h"
-#include "cgroup-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "formats-util.h"
-#include "hexdecoct.h"
-#include "parse-util.h"
-#include "process-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "terminal-util.h"
-#include "user-util.h"
-#include "util.h"
enum {
CAP_OFFSET_INHERITABLE = 0,
diff --git a/src/libsystemd/sd-bus/bus-creds.h b/src/libsystemd/src/sd-bus/bus-creds.h
index df8a1f1005..3e2311f91d 100644
--- a/src/libsystemd/sd-bus/bus-creds.h
+++ b/src/libsystemd/src/sd-bus/bus-creds.h
@@ -21,7 +21,7 @@
#include <stdbool.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
struct sd_bus_creds {
bool allocated;
diff --git a/src/libsystemd/sd-bus/bus-dump.c b/src/libsystemd/src/sd-bus/bus-dump.c
index 21a6b20a11..cec53d75e5 100644
--- a/src/libsystemd/sd-bus/bus-dump.c
+++ b/src/libsystemd/src/sd-bus/bus-dump.c
@@ -17,21 +17,22 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "alloc-util.h"
+#include "basic/alloc-util.h"
+#include "basic/cap-list.h"
+#include "basic/capability-util.h"
+#include "basic/fileio.h"
+#include "basic/formats-util.h"
+#include "basic/locale-util.h"
+#include "basic/macro.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/terminal-util.h"
+#include "basic/util.h"
+
#include "bus-dump.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "bus-type.h"
-#include "cap-list.h"
-#include "capability-util.h"
-#include "fileio.h"
-#include "formats-util.h"
-#include "locale-util.h"
-#include "macro.h"
-#include "string-util.h"
-#include "strv.h"
-#include "terminal-util.h"
-#include "util.h"
static char *indent(unsigned level, unsigned flags) {
char *p;
diff --git a/src/libsystemd/sd-bus/bus-dump.h b/src/libsystemd/src/sd-bus/bus-dump.h
index 874e86d09c..68fa043786 100644
--- a/src/libsystemd/sd-bus/bus-dump.h
+++ b/src/libsystemd/src/sd-bus/bus-dump.h
@@ -22,7 +22,7 @@
#include <stdbool.h>
#include <stdio.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
enum {
BUS_MESSAGE_DUMP_WITH_HEADER = 1,
diff --git a/src/libsystemd/sd-bus/bus-error.c b/src/libsystemd/src/sd-bus/bus-error.c
index 26219bdeed..616d784590 100644
--- a/src/libsystemd/sd-bus/bus-error.c
+++ b/src/libsystemd/src/sd-bus/bus-error.c
@@ -24,13 +24,14 @@
#include <stdlib.h>
#include <string.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/errno-list.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
#include "bus-error.h"
-#include "errno-list.h"
-#include "string-util.h"
-#include "util.h"
BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map bus_standard_errors[] = {
SD_BUS_ERROR_MAP("org.freedesktop.DBus.Error.Failed", EACCES),
diff --git a/src/libsystemd/sd-bus/bus-error.h b/src/libsystemd/src/sd-bus/bus-error.h
index e2c4cf4b3f..0693d9c68c 100644
--- a/src/libsystemd/sd-bus/bus-error.h
+++ b/src/libsystemd/src/sd-bus/bus-error.h
@@ -21,9 +21,9 @@
#include <stdbool.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
-#include "macro.h"
+#include "basic/macro.h"
bool bus_error_is_dirty(sd_bus_error *e);
diff --git a/src/libsystemd/sd-bus/bus-gvariant.c b/src/libsystemd/src/sd-bus/bus-gvariant.c
index 58782767fa..58782767fa 100644
--- a/src/libsystemd/sd-bus/bus-gvariant.c
+++ b/src/libsystemd/src/sd-bus/bus-gvariant.c
diff --git a/src/libsystemd/sd-bus/bus-gvariant.h b/src/libsystemd/src/sd-bus/bus-gvariant.h
index 6da637fb05..d9468ee9a8 100644
--- a/src/libsystemd/sd-bus/bus-gvariant.h
+++ b/src/libsystemd/src/sd-bus/bus-gvariant.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "macro.h"
+#include "basic/macro.h"
int bus_gvariant_get_size(const char *signature) _pure_;
int bus_gvariant_get_alignment(const char *signature) _pure_;
diff --git a/src/libsystemd/sd-bus/bus-internal.c b/src/libsystemd/src/sd-bus/bus-internal.c
index caca679086..8dc441227a 100644
--- a/src/libsystemd/sd-bus/bus-internal.c
+++ b/src/libsystemd/src/sd-bus/bus-internal.c
@@ -17,11 +17,12 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "alloc-util.h"
+#include "basic/alloc-util.h"
+#include "basic/hexdecoct.h"
+#include "basic/string-util.h"
+
#include "bus-internal.h"
#include "bus-message.h"
-#include "hexdecoct.h"
-#include "string-util.h"
bool object_path_is_valid(const char *p) {
const char *q;
diff --git a/src/libsystemd/sd-bus/bus-internal.h b/src/libsystemd/src/sd-bus/bus-internal.h
index 216d9f62bc..e02df7981d 100644
--- a/src/libsystemd/sd-bus/bus-internal.h
+++ b/src/libsystemd/src/sd-bus/bus-internal.h
@@ -22,18 +22,19 @@
#include <pthread.h>
#include <sys/socket.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/hashmap.h"
+#include "basic/list.h"
+#include "basic/prioq.h"
+#include "basic/refcnt.h"
+#include "basic/socket-util.h"
+#include "basic/util.h"
#include "bus-error.h"
#include "bus-kernel.h"
#include "bus-match.h"
-#include "hashmap.h"
#include "kdbus.h"
-#include "list.h"
-#include "prioq.h"
-#include "refcnt.h"
-#include "socket-util.h"
-#include "util.h"
struct reply_callback {
sd_bus_message_handler_t callback;
diff --git a/src/libsystemd/sd-bus/bus-introspect.c b/src/libsystemd/src/sd-bus/bus-introspect.c
index 8f93edb8da..835b5e3909 100644
--- a/src/libsystemd/sd-bus/bus-introspect.c
+++ b/src/libsystemd/src/sd-bus/bus-introspect.c
@@ -17,14 +17,15 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
+
#include "bus-internal.h"
#include "bus-introspect.h"
#include "bus-protocol.h"
#include "bus-signature.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "string-util.h"
-#include "util.h"
int introspect_begin(struct introspect *i, bool trusted) {
assert(i);
diff --git a/src/libsystemd/sd-bus/bus-introspect.h b/src/libsystemd/src/sd-bus/bus-introspect.h
index 8e2f3800ca..af4ae10682 100644
--- a/src/libsystemd/sd-bus/bus-introspect.h
+++ b/src/libsystemd/src/sd-bus/bus-introspect.h
@@ -21,9 +21,9 @@
#include <stdio.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
-#include "set.h"
+#include "basic/set.h"
struct introspect {
FILE *f;
diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/src/sd-bus/bus-kernel.c
index 59398b841d..9d767340b6 100644
--- a/src/libsystemd/sd-bus/bus-kernel.c
+++ b/src/libsystemd/src/sd-bus/bus-kernel.c
@@ -32,24 +32,25 @@
#include <libgen.h>
#undef basename
-#include "alloc-util.h"
+#include "basic/alloc-util.h"
+#include "basic/bus-label.h"
+#include "basic/capability-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/formats-util.h"
+#include "basic/memfd-util.h"
+#include "basic/parse-util.h"
+#include "basic/stdio-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/user-util.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
+
#include "bus-bloom.h"
#include "bus-internal.h"
#include "bus-kernel.h"
-#include "bus-label.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "capability-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "formats-util.h"
-#include "memfd-util.h"
-#include "parse-util.h"
-#include "stdio-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "user-util.h"
-#include "util.h"
#define UNIQUE_NAME_MAX (3+DECIMAL_STR_MAX(uint64_t))
diff --git a/src/libsystemd/sd-bus/bus-kernel.h b/src/libsystemd/src/sd-bus/bus-kernel.h
index 53ba3bdcf3..2927ba26a5 100644
--- a/src/libsystemd/sd-bus/bus-kernel.h
+++ b/src/libsystemd/src/sd-bus/bus-kernel.h
@@ -21,7 +21,7 @@
#include <stdbool.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
#define KDBUS_ITEM_NEXT(item) \
(typeof(item))(((uint8_t *)item) + ALIGN8((item)->size))
diff --git a/src/libsystemd/sd-bus/bus-match.c b/src/libsystemd/src/sd-bus/bus-match.c
index 397baf6f33..0dc5e45288 100644
--- a/src/libsystemd/sd-bus/bus-match.c
+++ b/src/libsystemd/src/sd-bus/bus-match.c
@@ -17,16 +17,17 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "alloc-util.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/hexdecoct.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "shared/bus-util.h"
+
#include "bus-internal.h"
#include "bus-match.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "hexdecoct.h"
-#include "string-util.h"
-#include "strv.h"
/* Example:
*
diff --git a/src/libsystemd/sd-bus/bus-match.h b/src/libsystemd/src/sd-bus/bus-match.h
index 8cbbb63b11..a85abcb377 100644
--- a/src/libsystemd/sd-bus/bus-match.h
+++ b/src/libsystemd/src/sd-bus/bus-match.h
@@ -19,9 +19,9 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
-#include "hashmap.h"
+#include "basic/hashmap.h"
enum bus_match_node_type {
BUS_MATCH_ROOT,
diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/src/sd-bus/bus-message.c
index b8958ec7bb..a34a4a1619 100644
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/src/sd-bus/bus-message.c
@@ -21,23 +21,24 @@
#include <fcntl.h>
#include <sys/mman.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/io-util.h"
+#include "basic/memfd-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/time-util.h"
+#include "basic/utf8.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-gvariant.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "bus-signature.h"
#include "bus-type.h"
-#include "bus-util.h"
-#include "fd-util.h"
-#include "io-util.h"
-#include "memfd-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "time-util.h"
-#include "utf8.h"
-#include "util.h"
static int message_append_basic(sd_bus_message *m, char type, const void *p, const void **stored);
diff --git a/src/libsystemd/sd-bus/bus-message.h b/src/libsystemd/src/sd-bus/bus-message.h
index 4710c106b9..35116c3803 100644
--- a/src/libsystemd/sd-bus/bus-message.h
+++ b/src/libsystemd/src/sd-bus/bus-message.h
@@ -23,12 +23,13 @@
#include <stdbool.h>
#include <sys/socket.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/macro.h"
+#include "basic/time-util.h"
#include "bus-creds.h"
#include "bus-protocol.h"
-#include "macro.h"
-#include "time-util.h"
struct bus_container {
char enclosing;
diff --git a/src/libsystemd/sd-bus/bus-objects.c b/src/libsystemd/src/sd-bus/bus-objects.c
index 9bd07ffcab..a56b7e8d7e 100644
--- a/src/libsystemd/sd-bus/bus-objects.c
+++ b/src/libsystemd/src/sd-bus/bus-objects.c
@@ -17,7 +17,12 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "alloc-util.h"
+#include "basic/alloc-util.h"
+#include "basic/set.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "shared/bus-util.h"
+
#include "bus-internal.h"
#include "bus-introspect.h"
#include "bus-message.h"
@@ -25,10 +30,6 @@
#include "bus-signature.h"
#include "bus-slot.h"
#include "bus-type.h"
-#include "bus-util.h"
-#include "set.h"
-#include "string-util.h"
-#include "strv.h"
static int node_vtable_get_userdata(
sd_bus *bus,
diff --git a/src/libsystemd/sd-bus/bus-objects.h b/src/libsystemd/src/sd-bus/bus-objects.h
index e0b8c534ed..e0b8c534ed 100644
--- a/src/libsystemd/sd-bus/bus-objects.h
+++ b/src/libsystemd/src/sd-bus/bus-objects.h
diff --git a/src/libsystemd/sd-bus/bus-protocol.h b/src/libsystemd/src/sd-bus/bus-protocol.h
index 9d180cb284..931dc21c46 100644
--- a/src/libsystemd/sd-bus/bus-protocol.h
+++ b/src/libsystemd/src/sd-bus/bus-protocol.h
@@ -21,7 +21,7 @@
#include <endian.h>
-#include "macro.h"
+#include "basic/macro.h"
/* Packet header */
diff --git a/src/libsystemd/sd-bus/bus-signature.c b/src/libsystemd/src/sd-bus/bus-signature.c
index 7bc243494a..c11b113186 100644
--- a/src/libsystemd/sd-bus/bus-signature.c
+++ b/src/libsystemd/src/sd-bus/bus-signature.c
@@ -17,7 +17,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <util.h>
+#include "basic/util.h"
#include "bus-signature.h"
#include "bus-type.h"
diff --git a/src/libsystemd/sd-bus/bus-signature.h b/src/libsystemd/src/sd-bus/bus-signature.h
index 1e0cd7f587..1e0cd7f587 100644
--- a/src/libsystemd/sd-bus/bus-signature.h
+++ b/src/libsystemd/src/sd-bus/bus-signature.h
diff --git a/src/libsystemd/sd-bus/bus-slot.c b/src/libsystemd/src/sd-bus/bus-slot.c
index 8e9074c7df..ebac784433 100644
--- a/src/libsystemd/sd-bus/bus-slot.c
+++ b/src/libsystemd/src/sd-bus/bus-slot.c
@@ -17,13 +17,14 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/string-util.h"
-#include "alloc-util.h"
#include "bus-control.h"
#include "bus-objects.h"
#include "bus-slot.h"
-#include "string-util.h"
sd_bus_slot *bus_slot_allocate(
sd_bus *bus,
diff --git a/src/libsystemd/sd-bus/bus-slot.h b/src/libsystemd/src/sd-bus/bus-slot.h
index 3b8b94dc6b..b862799d1c 100644
--- a/src/libsystemd/sd-bus/bus-slot.h
+++ b/src/libsystemd/src/sd-bus/bus-slot.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
#include "bus-internal.h"
diff --git a/src/libsystemd/sd-bus/bus-socket.c b/src/libsystemd/src/sd-bus/bus-socket.c
index f1e2a06050..4d6e21f977 100644
--- a/src/libsystemd/sd-bus/bus-socket.c
+++ b/src/libsystemd/src/sd-bus/bus-socket.c
@@ -22,25 +22,26 @@
#include <stdlib.h>
#include <unistd.h>
-#include "sd-bus.h"
-#include "sd-daemon.h"
+#include <systemd/sd-bus.h>
+#include <systemd/sd-daemon.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/formats-util.h"
+#include "basic/hexdecoct.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+#include "basic/selinux-util.h"
+#include "basic/signal-util.h"
+#include "basic/stdio-util.h"
+#include "basic/string-util.h"
+#include "basic/user-util.h"
+#include "basic/utf8.h"
+#include "basic/util.h"
-#include "alloc-util.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "bus-socket.h"
-#include "fd-util.h"
-#include "formats-util.h"
-#include "hexdecoct.h"
-#include "macro.h"
-#include "missing.h"
-#include "selinux-util.h"
-#include "signal-util.h"
-#include "stdio-util.h"
-#include "string-util.h"
-#include "user-util.h"
-#include "utf8.h"
-#include "util.h"
#define SNDBUF_SIZE (8*1024*1024)
diff --git a/src/libsystemd/sd-bus/bus-socket.h b/src/libsystemd/src/sd-bus/bus-socket.h
index 684feead74..6e1d32e6a7 100644
--- a/src/libsystemd/sd-bus/bus-socket.h
+++ b/src/libsystemd/src/sd-bus/bus-socket.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
void bus_socket_setup(sd_bus *b);
diff --git a/src/libsystemd/sd-bus/bus-track.c b/src/libsystemd/src/sd-bus/bus-track.c
index 1f436fe560..24c3a7050d 100644
--- a/src/libsystemd/sd-bus/bus-track.c
+++ b/src/libsystemd/src/sd-bus/bus-track.c
@@ -17,12 +17,13 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-internal.h"
#include "bus-track.h"
-#include "bus-util.h"
struct sd_bus_track {
unsigned n_ref;
diff --git a/src/libsystemd/sd-bus/bus-track.h b/src/libsystemd/src/sd-bus/bus-track.h
index 7d93a727d6..7d93a727d6 100644
--- a/src/libsystemd/sd-bus/bus-track.h
+++ b/src/libsystemd/src/sd-bus/bus-track.h
diff --git a/src/libsystemd/sd-bus/bus-type.c b/src/libsystemd/src/sd-bus/bus-type.c
index c692afc580..c692afc580 100644
--- a/src/libsystemd/sd-bus/bus-type.c
+++ b/src/libsystemd/src/sd-bus/bus-type.c
diff --git a/src/libsystemd/sd-bus/bus-type.h b/src/libsystemd/src/sd-bus/bus-type.h
index 5c87eb5f08..d81aa20df3 100644
--- a/src/libsystemd/sd-bus/bus-type.h
+++ b/src/libsystemd/src/sd-bus/bus-type.h
@@ -21,9 +21,9 @@
#include <stdbool.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
-#include "macro.h"
+#include "basic/macro.h"
bool bus_type_is_valid(char c) _const_;
bool bus_type_is_valid_in_signature(char c) _const_;
diff --git a/src/libsystemd/sd-bus/kdbus.h b/src/libsystemd/src/sd-bus/kdbus.h
index ecffc6b13c..ecffc6b13c 100644
--- a/src/libsystemd/sd-bus/kdbus.h
+++ b/src/libsystemd/src/sd-bus/kdbus.h
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/src/sd-bus/sd-bus.c
index ed5f94e136..83a021e2f5 100644
--- a/src/libsystemd/sd-bus/sd-bus.c
+++ b/src/libsystemd/src/sd-bus/sd-bus.c
@@ -25,14 +25,27 @@
#include <sys/mman.h>
#include <unistd.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/bus-label.h"
+#include "basic/cgroup-util.h"
+#include "basic/def.h"
+#include "basic/fd-util.h"
+#include "basic/hexdecoct.h"
+#include "basic/hostname-util.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+#include "basic/parse-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-container.h"
#include "bus-control.h"
#include "bus-internal.h"
#include "bus-kernel.h"
-#include "bus-label.h"
#include "bus-message.h"
#include "bus-objects.h"
#include "bus-protocol.h"
@@ -40,18 +53,6 @@
#include "bus-socket.h"
#include "bus-track.h"
#include "bus-type.h"
-#include "bus-util.h"
-#include "cgroup-util.h"
-#include "def.h"
-#include "fd-util.h"
-#include "hexdecoct.h"
-#include "hostname-util.h"
-#include "macro.h"
-#include "missing.h"
-#include "parse-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "util.h"
#define log_debug_bus_message(m) \
do { \
diff --git a/src/libsystemd/sd-bus/test-bus-benchmark.c b/src/libsystemd/src/sd-bus/test-bus-benchmark.c
index 56ac2ab3dd..c8f0d11b84 100644
--- a/src/libsystemd/sd-bus/test-bus-benchmark.c
+++ b/src/libsystemd/src/sd-bus/test-bus-benchmark.c
@@ -19,16 +19,17 @@
#include <sys/wait.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/def.h"
+#include "basic/fd-util.h"
+#include "basic/time-util.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-internal.h"
#include "bus-kernel.h"
-#include "bus-util.h"
-#include "def.h"
-#include "fd-util.h"
-#include "time-util.h"
-#include "util.h"
#define MAX_SIZE (2*1024*1024)
diff --git a/src/libsystemd/sd-bus/test-bus-chat.c b/src/libsystemd/src/sd-bus/test-bus-chat.c
index 048c0d19e2..8f3e88a7c0 100644
--- a/src/libsystemd/sd-bus/test-bus-chat.c
+++ b/src/libsystemd/src/sd-bus/test-bus-chat.c
@@ -22,18 +22,19 @@
#include <stdlib.h>
#include <unistd.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/formats-util.h"
+#include "basic/log.h"
+#include "basic/macro.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-error.h"
#include "bus-internal.h"
#include "bus-match.h"
-#include "bus-util.h"
-#include "fd-util.h"
-#include "formats-util.h"
-#include "log.h"
-#include "macro.h"
-#include "util.h"
static int match_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
log_info("Match triggered! interface=%s member=%s", strna(sd_bus_message_get_interface(m)), strna(sd_bus_message_get_member(m)));
diff --git a/src/libsystemd/sd-bus/test-bus-cleanup.c b/src/libsystemd/src/sd-bus/test-bus-cleanup.c
index 250a5b2908..f4b9f96c03 100644
--- a/src/libsystemd/sd-bus/test-bus-cleanup.c
+++ b/src/libsystemd/src/sd-bus/test-bus-cleanup.c
@@ -19,12 +19,13 @@
#include <stdio.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/refcnt.h"
+#include "shared/bus-util.h"
#include "bus-internal.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "refcnt.h"
static void test_bus_new(void) {
_cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
diff --git a/src/libsystemd/sd-bus/test-bus-creds.c b/src/libsystemd/src/sd-bus/test-bus-creds.c
index e9ef483bdd..125d7db810 100644
--- a/src/libsystemd/sd-bus/test-bus-creds.c
+++ b/src/libsystemd/src/sd-bus/test-bus-creds.c
@@ -17,11 +17,12 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/cgroup-util.h"
+#include "shared/bus-util.h"
#include "bus-dump.h"
-#include "bus-util.h"
-#include "cgroup-util.h"
int main(int argc, char *argv[]) {
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
diff --git a/src/libsystemd/sd-bus/test-bus-error.c b/src/libsystemd/src/sd-bus/test-bus-error.c
index 66a3874f10..2d0aa92c6c 100644
--- a/src/libsystemd/sd-bus/test-bus-error.c
+++ b/src/libsystemd/src/sd-bus/test-bus-error.c
@@ -17,12 +17,13 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/errno-list.h"
+#include "shared/bus-util.h"
#include "bus-common-errors.h"
#include "bus-error.h"
-#include "bus-util.h"
-#include "errno-list.h"
static void test_error(void) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
diff --git a/src/libsystemd/sd-bus/test-bus-gvariant.c b/src/libsystemd/src/sd-bus/test-bus-gvariant.c
index 83f114a0fe..5fdf8e661c 100644
--- a/src/libsystemd/sd-bus/test-bus-gvariant.c
+++ b/src/libsystemd/src/sd-bus/test-bus-gvariant.c
@@ -21,16 +21,17 @@
#include <glib.h>
#endif
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/macro.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-dump.h"
#include "bus-gvariant.h"
#include "bus-internal.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "macro.h"
-#include "util.h"
static void test_bus_gvariant_is_fixed_size(void) {
assert_se(bus_gvariant_is_fixed_size("") > 0);
diff --git a/src/libsystemd/sd-bus/test-bus-introspect.c b/src/libsystemd/src/sd-bus/test-bus-introspect.c
index 4425cfae26..517e3668ae 100644
--- a/src/libsystemd/sd-bus/test-bus-introspect.c
+++ b/src/libsystemd/src/sd-bus/test-bus-introspect.c
@@ -17,8 +17,9 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "basic/log.h"
+
#include "bus-introspect.h"
-#include "log.h"
static int prop_get(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
return -EINVAL;
diff --git a/src/libsystemd/sd-bus/test-bus-kernel-bloom.c b/src/libsystemd/src/sd-bus/test-bus-kernel-bloom.c
index eb6179d7d2..cb8c41b792 100644
--- a/src/libsystemd/sd-bus/test-bus-kernel-bloom.c
+++ b/src/libsystemd/src/sd-bus/test-bus-kernel-bloom.c
@@ -17,14 +17,15 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/log.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-kernel.h"
-#include "bus-util.h"
-#include "fd-util.h"
-#include "log.h"
-#include "util.h"
static int test_match(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
int *found = userdata;
diff --git a/src/libsystemd/sd-bus/test-bus-kernel.c b/src/libsystemd/src/sd-bus/test-bus-kernel.c
index 2214817312..871bf2e62c 100644
--- a/src/libsystemd/sd-bus/test-bus-kernel.c
+++ b/src/libsystemd/src/sd-bus/test-bus-kernel.c
@@ -19,15 +19,16 @@
#include <fcntl.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/log.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-dump.h"
#include "bus-kernel.h"
-#include "bus-util.h"
-#include "fd-util.h"
-#include "log.h"
-#include "util.h"
int main(int argc, char *argv[]) {
_cleanup_close_ int bus_ref = -1;
diff --git a/src/libsystemd/sd-bus/test-bus-marshal.c b/src/libsystemd/src/sd-bus/test-bus-marshal.c
index a28cc5b79e..4d8f22b042 100644
--- a/src/libsystemd/sd-bus/test-bus-marshal.c
+++ b/src/libsystemd/src/sd-bus/test-bus-marshal.c
@@ -28,17 +28,18 @@
#include <dbus/dbus.h>
#endif
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/bus-label.h"
+#include "basic/fd-util.h"
+#include "basic/hexdecoct.h"
+#include "basic/log.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-dump.h"
-#include "bus-label.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "fd-util.h"
-#include "hexdecoct.h"
-#include "log.h"
-#include "util.h"
static void test_bus_path_encode_unique(void) {
_cleanup_free_ char *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL;
diff --git a/src/libsystemd/sd-bus/test-bus-match.c b/src/libsystemd/src/sd-bus/test-bus-match.c
index 29c4529f95..e50cebcdc6 100644
--- a/src/libsystemd/sd-bus/test-bus-match.c
+++ b/src/libsystemd/src/sd-bus/test-bus-match.c
@@ -17,12 +17,13 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "basic/log.h"
+#include "basic/macro.h"
+#include "shared/bus-util.h"
+
#include "bus-match.h"
#include "bus-message.h"
#include "bus-slot.h"
-#include "bus-util.h"
-#include "log.h"
-#include "macro.h"
static bool mask[32];
diff --git a/src/libsystemd/sd-bus/test-bus-objects.c b/src/libsystemd/src/sd-bus/test-bus-objects.c
index f11cafd888..1c6e28e76e 100644
--- a/src/libsystemd/sd-bus/test-bus-objects.c
+++ b/src/libsystemd/src/sd-bus/test-bus-objects.c
@@ -20,17 +20,18 @@
#include <pthread.h>
#include <stdlib.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/log.h"
+#include "basic/macro.h"
+#include "basic/strv.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
-#include "alloc-util.h"
#include "bus-dump.h"
#include "bus-internal.h"
#include "bus-message.h"
-#include "bus-util.h"
-#include "log.h"
-#include "macro.h"
-#include "strv.h"
-#include "util.h"
struct context {
int fds[2];
diff --git a/src/libsystemd/sd-bus/test-bus-server.c b/src/libsystemd/src/sd-bus/test-bus-server.c
index b6272efc30..9ffefa6cd0 100644
--- a/src/libsystemd/sd-bus/test-bus-server.c
+++ b/src/libsystemd/src/sd-bus/test-bus-server.c
@@ -20,13 +20,14 @@
#include <pthread.h>
#include <stdlib.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/log.h"
+#include "basic/macro.h"
+#include "basic/util.h"
+#include "shared/bus-util.h"
#include "bus-internal.h"
-#include "bus-util.h"
-#include "log.h"
-#include "macro.h"
-#include "util.h"
struct context {
int fds[2];
diff --git a/src/libsystemd/sd-bus/test-bus-signature.c b/src/libsystemd/src/sd-bus/test-bus-signature.c
index 4f4fd093bf..c08999b8e1 100644
--- a/src/libsystemd/sd-bus/test-bus-signature.c
+++ b/src/libsystemd/src/sd-bus/test-bus-signature.c
@@ -17,10 +17,11 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "basic/log.h"
+#include "basic/string-util.h"
+
#include "bus-internal.h"
#include "bus-signature.h"
-#include "log.h"
-#include "string-util.h"
int main(int argc, char *argv[]) {
char prefix[256];
diff --git a/src/libsystemd/sd-bus/test-bus-zero-copy.c b/src/libsystemd/src/sd-bus/test-bus-zero-copy.c
index 3380e8500a..ac453e5887 100644
--- a/src/libsystemd/sd-bus/test-bus-zero-copy.c
+++ b/src/libsystemd/src/sd-bus/test-bus-zero-copy.c
@@ -19,17 +19,18 @@
#include <sys/mman.h>
-#include "sd-bus.h"
+#include <systemd/sd-bus.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/log.h"
+#include "basic/memfd-util.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
#include "bus-dump.h"
#include "bus-kernel.h"
#include "bus-message.h"
-#include "fd-util.h"
-#include "log.h"
-#include "memfd-util.h"
-#include "string-util.h"
-#include "util.h"
#define FIRST_ARRAY 17
#define SECOND_ARRAY 33
diff --git a/src/libsystemd/src/sd-daemon/Makefile b/src/libsystemd/src/sd-daemon/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-daemon/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-daemon/sd-daemon.c b/src/libsystemd/src/sd-daemon/sd-daemon.c
index 4da9dbfd63..863c47d2ba 100644
--- a/src/libsystemd/sd-daemon/sd-daemon.c
+++ b/src/libsystemd/src/sd-daemon/sd-daemon.c
@@ -31,16 +31,16 @@
#include <sys/un.h>
#include <unistd.h>
-#include "sd-daemon.h"
-
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "fs-util.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "socket-util.h"
-#include "strv.h"
-#include "util.h"
+#include <systemd/sd-daemon.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fs-util.h"
+#include "basic/parse-util.h"
+#include "basic/path-util.h"
+#include "basic/socket-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
#define SNDBUF_SIZE (8*1024*1024)
diff --git a/src/libsystemd/src/sd-device/Makefile b/src/libsystemd/src/sd-device/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-device/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-device/device-enumerator-private.h b/src/libsystemd/src/sd-device/device-enumerator-private.h
index eb06f9542d..eb06f9542d 100644
--- a/src/libsystemd/sd-device/device-enumerator-private.h
+++ b/src/libsystemd/src/sd-device/device-enumerator-private.h
diff --git a/src/libsystemd/sd-device/device-enumerator.c b/src/libsystemd/src/sd-device/device-enumerator.c
index 4a7a8b1f9e..6378f9c93c 100644
--- a/src/libsystemd/sd-device/device-enumerator.c
+++ b/src/libsystemd/src/sd-device/device-enumerator.c
@@ -18,18 +18,18 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-device.h"
+#include "basic/alloc-util.h"
+#include "basic/dirent-util.h"
+#include "basic/fd-util.h"
+#include "basic/prioq.h"
+#include "basic/set.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
-#include "alloc-util.h"
#include "device-enumerator-private.h"
#include "device-util.h"
-#include "dirent-util.h"
-#include "fd-util.h"
-#include "prioq.h"
-#include "set.h"
-#include "string-util.h"
-#include "strv.h"
-#include "util.h"
+#include "sd-device.h"
#define DEVICE_ENUMERATE_MAX_DEPTH 256
diff --git a/src/libsystemd/sd-device/device-internal.h b/src/libsystemd/src/sd-device/device-internal.h
index ab222e27de..5e5ae47339 100644
--- a/src/libsystemd/sd-device/device-internal.h
+++ b/src/libsystemd/src/sd-device/device-internal.h
@@ -20,8 +20,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "hashmap.h"
-#include "set.h"
+#include "basic/hashmap.h"
+#include "basic/set.h"
struct sd_device {
uint64_t n_ref;
diff --git a/src/libsystemd/sd-device/device-private.c b/src/libsystemd/src/sd-device/device-private.c
index 9082d377f4..bf028fbbc6 100644
--- a/src/libsystemd/sd-device/device-private.c
+++ b/src/libsystemd/src/sd-device/device-private.c
@@ -22,28 +22,28 @@
#include <net/if.h>
#include <sys/types.h>
-#include "sd-device.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/fs-util.h"
+#include "basic/hashmap.h"
+#include "basic/macro.h"
+#include "basic/mkdir.h"
+#include "basic/parse-util.h"
+#include "basic/path-util.h"
+#include "basic/refcnt.h"
+#include "basic/set.h"
+#include "basic/string-table.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/strxcpyx.h"
+#include "basic/user-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
#include "device-internal.h"
#include "device-private.h"
#include "device-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "fs-util.h"
-#include "hashmap.h"
-#include "macro.h"
-#include "mkdir.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "refcnt.h"
-#include "set.h"
-#include "string-table.h"
-#include "string-util.h"
-#include "strv.h"
-#include "strxcpyx.h"
-#include "user-util.h"
-#include "util.h"
+#include "sd-device.h"
int device_add_property(sd_device *device, const char *key, const char *value) {
int r;
diff --git a/src/libsystemd/sd-device/device-private.h b/src/libsystemd/src/sd-device/device-private.h
index 29b3e155fb..29b3e155fb 100644
--- a/src/libsystemd/sd-device/device-private.h
+++ b/src/libsystemd/src/sd-device/device-private.h
diff --git a/src/libsystemd/sd-device/device-util.h b/src/libsystemd/src/sd-device/device-util.h
index 5b42e11de6..a8aca6d8f4 100644
--- a/src/libsystemd/sd-device/device-util.h
+++ b/src/libsystemd/src/sd-device/device-util.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "util.h"
+#include "basic/util.h"
#define FOREACH_DEVICE_PROPERTY(device, key, value) \
for (key = sd_device_get_property_first(device, &(value)); \
diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/src/sd-device/sd-device.c
index b1c3d5f228..b8e6f8580e 100644
--- a/src/libsystemd/sd-device/sd-device.c
+++ b/src/libsystemd/src/sd-device/sd-device.c
@@ -22,25 +22,25 @@
#include <net/if.h>
#include <sys/types.h>
-#include "sd-device.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/fs-util.h"
+#include "basic/hashmap.h"
+#include "basic/macro.h"
+#include "basic/parse-util.h"
+#include "basic/path-util.h"
+#include "basic/set.h"
+#include "basic/stat-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/strxcpyx.h"
+#include "basic/util.h"
-#include "alloc-util.h"
#include "device-internal.h"
#include "device-private.h"
#include "device-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "fs-util.h"
-#include "hashmap.h"
-#include "macro.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "set.h"
-#include "stat-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "strxcpyx.h"
-#include "util.h"
+#include "sd-device.h"
int device_new_aux(sd_device **ret) {
_cleanup_(sd_device_unrefp) sd_device *device = NULL;
diff --git a/src/libsystemd/src/sd-device/sd-device.h b/src/libsystemd/src/sd-device/sd-device.h
new file mode 100644
index 0000000000..5e32fc6110
--- /dev/null
+++ b/src/libsystemd/src/sd-device/sd-device.h
@@ -0,0 +1,101 @@
+#ifndef foosddevicehfoo
+#define foosddevicehfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
+ Copyright 2014-2015 Tom Gundersen <teg@jklm.no>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+
+#include <systemd/_sd-common.h>
+
+_SD_BEGIN_DECLARATIONS;
+
+typedef struct sd_device sd_device;
+typedef struct sd_device_enumerator sd_device_enumerator;
+
+/* device */
+
+sd_device *sd_device_ref(sd_device *device);
+sd_device *sd_device_unref(sd_device *device);
+
+int sd_device_new_from_syspath(sd_device **ret, const char *syspath);
+int sd_device_new_from_devnum(sd_device **ret, char type, dev_t devnum);
+int sd_device_new_from_subsystem_sysname(sd_device **ret, const char *subsystem, const char *sysname);
+int sd_device_new_from_device_id(sd_device **ret, const char *id);
+
+int sd_device_get_parent(sd_device *child, sd_device **ret);
+int sd_device_get_parent_with_subsystem_devtype(sd_device *child, const char *subsystem, const char *devtype, sd_device **ret);
+
+int sd_device_get_syspath(sd_device *device, const char **ret);
+int sd_device_get_subsystem(sd_device *device, const char **ret);
+int sd_device_get_devtype(sd_device *device, const char **ret);
+int sd_device_get_devnum(sd_device *device, dev_t *devnum);
+int sd_device_get_ifindex(sd_device *device, int *ifindex);
+int sd_device_get_driver(sd_device *device, const char **ret);
+int sd_device_get_devpath(sd_device *device, const char **ret);
+int sd_device_get_devname(sd_device *device, const char **ret);
+int sd_device_get_sysname(sd_device *device, const char **ret);
+int sd_device_get_sysnum(sd_device *device, const char **ret);
+
+int sd_device_get_is_initialized(sd_device *device, int *initialized);
+int sd_device_get_usec_since_initialized(sd_device *device, uint64_t *usec);
+
+const char *sd_device_get_tag_first(sd_device *device);
+const char *sd_device_get_tag_next(sd_device *device);
+const char *sd_device_get_devlink_first(sd_device *device);
+const char *sd_device_get_devlink_next(sd_device *device);
+const char *sd_device_get_property_first(sd_device *device, const char **value);
+const char *sd_device_get_property_next(sd_device *device, const char **value);
+const char *sd_device_get_sysattr_first(sd_device *device);
+const char *sd_device_get_sysattr_next(sd_device *device);
+
+int sd_device_has_tag(sd_device *device, const char *tag);
+int sd_device_get_property_value(sd_device *device, const char *key, const char **value);
+int sd_device_get_sysattr_value(sd_device *device, const char *sysattr, const char **_value);
+
+int sd_device_set_sysattr_value(sd_device *device, const char *sysattr, char *value);
+
+/* device enumerator */
+
+int sd_device_enumerator_new(sd_device_enumerator **ret);
+sd_device_enumerator *sd_device_enumerator_ref(sd_device_enumerator *enumerator);
+sd_device_enumerator *sd_device_enumerator_unref(sd_device_enumerator *enumerator);
+
+sd_device *sd_device_enumerator_get_device_first(sd_device_enumerator *enumerator);
+sd_device *sd_device_enumerator_get_device_next(sd_device_enumerator *enumerator);
+sd_device *sd_device_enumerator_get_subsystem_first(sd_device_enumerator *enumerator);
+sd_device *sd_device_enumerator_get_subsystem_next(sd_device_enumerator *enumerator);
+
+int sd_device_enumerator_add_match_subsystem(sd_device_enumerator *enumerator, const char *subsystem, int match);
+int sd_device_enumerator_add_match_sysattr(sd_device_enumerator *enumerator, const char *sysattr, const char *value, int match);
+int sd_device_enumerator_add_match_property(sd_device_enumerator *enumerator, const char *property, const char *value);
+int sd_device_enumerator_add_match_sysname(sd_device_enumerator *enumerator, const char *sysname);
+int sd_device_enumerator_add_match_tag(sd_device_enumerator *enumerator, const char *tag);
+int sd_device_enumerator_add_match_parent(sd_device_enumerator *enumerator, sd_device *parent);
+int sd_device_enumerator_allow_uninitialized(sd_device_enumerator *enumerator);
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device, sd_device_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device_enumerator, sd_device_enumerator_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/src/sd-event/Makefile b/src/libsystemd/src/sd-event/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-event/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/src/sd-event/sd-event.c
index 7ba6527f63..daa1f55717 100644
--- a/src/libsystemd/sd-event/sd-event.c
+++ b/src/libsystemd/src/sd-event/sd-event.c
@@ -21,24 +21,24 @@
#include <sys/timerfd.h>
#include <sys/wait.h>
-#include "sd-daemon.h"
-#include "sd-event.h"
-#include "sd-id128.h"
-
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "hashmap.h"
-#include "list.h"
-#include "macro.h"
-#include "missing.h"
-#include "prioq.h"
-#include "process-util.h"
-#include "set.h"
-#include "signal-util.h"
-#include "string-table.h"
-#include "string-util.h"
-#include "time-util.h"
-#include "util.h"
+#include <systemd/sd-daemon.h>
+#include <systemd/sd-event.h>
+#include <systemd/sd-id128.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/hashmap.h"
+#include "basic/list.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+#include "basic/prioq.h"
+#include "basic/process-util.h"
+#include "basic/set.h"
+#include "basic/signal-util.h"
+#include "basic/string-table.h"
+#include "basic/string-util.h"
+#include "basic/time-util.h"
+#include "basic/util.h"
#define DEFAULT_ACCURACY_USEC (250 * USEC_PER_MSEC)
diff --git a/src/libsystemd/sd-event/test-event.c b/src/libsystemd/src/sd-event/test-event.c
index 289114490c..10395f155f 100644
--- a/src/libsystemd/sd-event/test-event.c
+++ b/src/libsystemd/src/sd-event/test-event.c
@@ -17,13 +17,13 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-event.h"
+#include <systemd/sd-event.h>
-#include "fd-util.h"
-#include "log.h"
-#include "macro.h"
-#include "signal-util.h"
-#include "util.h"
+#include "basic/fd-util.h"
+#include "basic/log.h"
+#include "basic/macro.h"
+#include "basic/signal-util.h"
+#include "basic/util.h"
static int prepare_handler(sd_event_source *s, void *userdata) {
log_info("preparing %c", PTR_TO_INT(userdata));
diff --git a/src/libsystemd/src/sd-hwdb/Makefile b/src/libsystemd/src/sd-hwdb/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-hwdb/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-hwdb/hwdb-internal.h b/src/libsystemd/src/sd-hwdb/hwdb-internal.h
index 8ffb5e5c74..7b32bbd11d 100644
--- a/src/libsystemd/sd-hwdb/hwdb-internal.h
+++ b/src/libsystemd/src/sd-hwdb/hwdb-internal.h
@@ -19,8 +19,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sparse-endian.h"
-#include "util.h"
+#include "basic/sparse-endian.h"
+#include "basic/util.h"
#define HWDB_SIG { 'K', 'S', 'L', 'P', 'H', 'H', 'R', 'H' }
diff --git a/src/libsystemd/sd-hwdb/hwdb-util.h b/src/libsystemd/src/sd-hwdb/hwdb-util.h
index 5e21e5008b..c8c0a4938e 100644
--- a/src/libsystemd/sd-hwdb/hwdb-util.h
+++ b/src/libsystemd/src/sd-hwdb/hwdb-util.h
@@ -19,8 +19,8 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-hwdb.h"
+#include "basic/util.h"
-#include "util.h"
+#include "sd-hwdb.h"
bool hwdb_validate(sd_hwdb *hwdb);
diff --git a/src/libsystemd/sd-hwdb/sd-hwdb.c b/src/libsystemd/src/sd-hwdb/sd-hwdb.c
index 062fa97b17..a48c7af124 100644
--- a/src/libsystemd/sd-hwdb/sd-hwdb.c
+++ b/src/libsystemd/src/sd-hwdb/sd-hwdb.c
@@ -27,15 +27,15 @@
#include <string.h>
#include <sys/mman.h>
-#include "sd-hwdb.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/hashmap.h"
+#include "basic/refcnt.h"
+#include "basic/string-util.h"
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "hashmap.h"
#include "hwdb-internal.h"
#include "hwdb-util.h"
-#include "refcnt.h"
-#include "string-util.h"
+#include "sd-hwdb.h"
struct sd_hwdb {
RefCount n_ref;
diff --git a/src/libsystemd/src/sd-hwdb/sd-hwdb.h b/src/libsystemd/src/sd-hwdb/sd-hwdb.h
new file mode 100644
index 0000000000..f46d7ad561
--- /dev/null
+++ b/src/libsystemd/src/sd-hwdb/sd-hwdb.h
@@ -0,0 +1,49 @@
+#ifndef foosdhwdbhfoo
+#define foosdhwdbhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
+ Copyright 2014 Tom Gundersen <teg@jklm.no>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <systemd/_sd-common.h>
+
+_SD_BEGIN_DECLARATIONS;
+
+typedef struct sd_hwdb sd_hwdb;
+
+sd_hwdb *sd_hwdb_ref(sd_hwdb *hwdb);
+sd_hwdb *sd_hwdb_unref(sd_hwdb *hwdb);
+
+int sd_hwdb_new(sd_hwdb **ret);
+
+int sd_hwdb_get(sd_hwdb *hwdb, const char *modalias, const char *key, const char **value);
+
+int sd_hwdb_seek(sd_hwdb *hwdb, const char *modalias);
+int sd_hwdb_enumerate(sd_hwdb *hwdb, const char **key, const char **value);
+
+/* the inverse condition avoids ambiguity of dangling 'else' after the macro */
+#define SD_HWDB_FOREACH_PROPERTY(hwdb, modalias, key, value) \
+ if (sd_hwdb_seek(hwdb, modalias) < 0) { } \
+ else while (sd_hwdb_enumerate(hwdb, &(key), &(value)) > 0)
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_hwdb, sd_hwdb_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/src/sd-id128/Makefile b/src/libsystemd/src/sd-id128/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-id128/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-id128/sd-id128.c b/src/libsystemd/src/sd-id128/sd-id128.c
index d9c0116f60..4a227ab6c0 100644
--- a/src/libsystemd/sd-id128/sd-id128.c
+++ b/src/libsystemd/src/sd-id128/sd-id128.c
@@ -21,14 +21,14 @@
#include <fcntl.h>
#include <unistd.h>
-#include "sd-id128.h"
-
-#include "fd-util.h"
-#include "hexdecoct.h"
-#include "io-util.h"
-#include "macro.h"
-#include "random-util.h"
-#include "util.h"
+#include <systemd/sd-id128.h>
+
+#include "basic/fd-util.h"
+#include "basic/hexdecoct.h"
+#include "basic/io-util.h"
+#include "basic/macro.h"
+#include "basic/random-util.h"
+#include "basic/util.h"
_public_ char *sd_id128_to_string(sd_id128_t id, char s[SD_ID128_STRING_MAX]) {
unsigned n;
diff --git a/src/libsystemd/src/sd-journal/Makefile b/src/libsystemd/src/sd-journal/Makefile
new file mode 100644
index 0000000000..6d1ff3c0a5
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/Makefile
@@ -0,0 +1,37 @@
+# -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2010-2012 Lennart Poettering
+# Copyright 2010-2012 Kay Sievers
+# Copyright 2013 Zbigniew Jędrzejewski-Szmek
+# Copyright 2013 David Strauss
+# Copyright 2016 Luke Shumaker
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+audit_list_includes = -include linux/audit.h -include missing.h
+ifneq ($(HAVE_AUDIT),)
+audit_list_includes += -include libaudit.h
+endif # HAVE_AUDIT
+
+$(outdir)/audit_type-list.txt:
+ $(AM_V_GEN)$(CPP) $(sd.ALL_CPPFLAGS) -dM $(audit_list_includes) - </dev/null | grep -vE 'AUDIT_.*(FIRST|LAST)_' | $(SED) -r -n 's/^#define\s+AUDIT_(\w+)\s+([0-9]{4})\s*$$/\1\t\2/p' | sort -k2 >$@
+
+$(outdir)/audit_type-to-name.h: $(outdir)/audit_type-list.txt
+ $(AM_V_GEN)$(AWK) 'BEGIN{ print "const char *audit_type_to_string(int type) {\n\tswitch(type) {" } {printf " case AUDIT_%s: return \"%s\";\n", $$1, $$1 } END{ print " default: return NULL;\n\t}\n}\n" }' <$< >$@
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/libsystemd/src/sd-journal/audit-type.c b/src/libsystemd/src/sd-journal/audit-type.c
new file mode 100644
index 0000000000..0ccbb456c3
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/audit-type.c
@@ -0,0 +1,31 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdio.h>
+
+#include <linux/audit.h>
+#ifdef HAVE_AUDIT
+# include <libaudit.h>
+#endif
+
+#include "audit_type-to-name.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+
+#include "audit-type.h"
diff --git a/src/libsystemd/src/sd-journal/audit-type.h b/src/libsystemd/src/sd-journal/audit-type.h
new file mode 100644
index 0000000000..8b96e2e466
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/audit-type.h
@@ -0,0 +1,37 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "basic/macro.h"
+
+const char *audit_type_to_string(int type);
+int audit_type_from_string(const char *s);
+
+/* This is inspired by DNS TYPEnnn formatting */
+#define audit_type_name_alloca(type) \
+ ({ \
+ const char *_s_; \
+ _s_ = audit_type_to_string(type); \
+ if (!_s_) { \
+ _s_ = alloca(strlen("AUDIT") + DECIMAL_STR_MAX(int)); \
+ sprintf((char*) _s_, "AUDIT%04i", type); \
+ } \
+ _s_; \
+ })
diff --git a/src/libsystemd/src/sd-journal/catalog.c b/src/libsystemd/src/sd-journal/catalog.c
new file mode 100644
index 0000000000..7dc02deb49
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/catalog.c
@@ -0,0 +1,768 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <locale.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <systemd/sd-id128.h>
+
+#include "basic/alloc-util.h"
+#include "basic/conf-files.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/hashmap.h"
+#include "basic/log.h"
+#include "basic/mkdir.h"
+#include "basic/path-util.h"
+#include "basic/siphash24.h"
+#include "basic/sparse-endian.h"
+#include "basic/strbuf.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
+
+#include "catalog.h"
+
+const char * const catalog_file_dirs[] = {
+ "/usr/local/lib/systemd/catalog/",
+ "/usr/lib/systemd/catalog/",
+ NULL
+};
+
+#define CATALOG_SIGNATURE (uint8_t[]) { 'R', 'H', 'H', 'H', 'K', 'S', 'L', 'P' }
+
+typedef struct CatalogHeader {
+ uint8_t signature[8]; /* "RHHHKSLP" */
+ le32_t compatible_flags;
+ le32_t incompatible_flags;
+ le64_t header_size;
+ le64_t n_items;
+ le64_t catalog_item_size;
+} CatalogHeader;
+
+typedef struct CatalogItem {
+ sd_id128_t id;
+ char language[32];
+ le64_t offset;
+} CatalogItem;
+
+static void catalog_hash_func(const void *p, struct siphash *state) {
+ const CatalogItem *i = p;
+
+ siphash24_compress(&i->id, sizeof(i->id), state);
+ siphash24_compress(i->language, strlen(i->language), state);
+}
+
+static int catalog_compare_func(const void *a, const void *b) {
+ const CatalogItem *i = a, *j = b;
+ unsigned k;
+
+ for (k = 0; k < ELEMENTSOF(j->id.bytes); k++) {
+ if (i->id.bytes[k] < j->id.bytes[k])
+ return -1;
+ if (i->id.bytes[k] > j->id.bytes[k])
+ return 1;
+ }
+
+ return strcmp(i->language, j->language);
+}
+
+const struct hash_ops catalog_hash_ops = {
+ .hash = catalog_hash_func,
+ .compare = catalog_compare_func
+};
+
+static bool next_header(const char **s) {
+ const char *e;
+
+ e = strchr(*s, '\n');
+
+ /* Unexpected end */
+ if (!e)
+ return false;
+
+ /* End of headers */
+ if (e == *s)
+ return false;
+
+ *s = e + 1;
+ return true;
+}
+
+static const char *skip_header(const char *s) {
+ while (next_header(&s))
+ ;
+ return s;
+}
+
+static char *combine_entries(const char *one, const char *two) {
+ const char *b1, *b2;
+ size_t l1, l2, n;
+ char *dest, *p;
+
+ /* Find split point of headers to body */
+ b1 = skip_header(one);
+ b2 = skip_header(two);
+
+ l1 = strlen(one);
+ l2 = strlen(two);
+ dest = new(char, l1 + l2 + 1);
+ if (!dest) {
+ log_oom();
+ return NULL;
+ }
+
+ p = dest;
+
+ /* Headers from @one */
+ n = b1 - one;
+ p = mempcpy(p, one, n);
+
+ /* Headers from @two, these will only be found if not present above */
+ n = b2 - two;
+ p = mempcpy(p, two, n);
+
+ /* Body from @one */
+ n = l1 - (b1 - one);
+ if (n > 0) {
+ memcpy(p, b1, n);
+ p += n;
+
+ /* Body from @two */
+ } else {
+ n = l2 - (b2 - two);
+ memcpy(p, b2, n);
+ p += n;
+ }
+
+ assert(p - dest <= (ptrdiff_t)(l1 + l2));
+ p[0] = '\0';
+ return dest;
+}
+
+static int finish_item(
+ Hashmap *h,
+ sd_id128_t id,
+ const char *language,
+ char *payload, size_t payload_size) {
+
+ _cleanup_free_ CatalogItem *i = NULL;
+ _cleanup_free_ char *prev = NULL, *combined = NULL;
+
+ assert(h);
+ assert(payload);
+ assert(payload_size > 0);
+
+ i = new0(CatalogItem, 1);
+ if (!i)
+ return log_oom();
+
+ i->id = id;
+ if (language) {
+ assert(strlen(language) > 1 && strlen(language) < 32);
+ strcpy(i->language, language);
+ }
+
+ prev = hashmap_get(h, i);
+ if (prev) {
+ /* Already have such an item, combine them */
+ combined = combine_entries(payload, prev);
+ if (!combined)
+ return log_oom();
+
+ if (hashmap_update(h, i, combined) < 0)
+ return log_oom();
+ combined = NULL;
+ } else {
+ /* A new item */
+ combined = memdup(payload, payload_size + 1);
+ if (!combined)
+ return log_oom();
+
+ if (hashmap_put(h, i, combined) < 0)
+ return log_oom();
+ i = NULL;
+ combined = NULL;
+ }
+
+ return 0;
+}
+
+int catalog_file_lang(const char* filename, char **lang) {
+ char *beg, *end, *_lang;
+
+ end = endswith(filename, ".catalog");
+ if (!end)
+ return 0;
+
+ beg = end - 1;
+ while (beg > filename && *beg != '.' && *beg != '/' && end - beg < 32)
+ beg--;
+
+ if (*beg != '.' || end <= beg + 1)
+ return 0;
+
+ _lang = strndup(beg + 1, end - beg - 1);
+ if (!_lang)
+ return -ENOMEM;
+
+ *lang = _lang;
+ return 1;
+}
+
+static int catalog_entry_lang(const char* filename, int line,
+ const char* t, const char* deflang, char **lang) {
+ size_t c;
+
+ c = strlen(t);
+ if (c == 0) {
+ log_error("[%s:%u] Language too short.", filename, line);
+ return -EINVAL;
+ }
+ if (c > 31) {
+ log_error("[%s:%u] language too long.", filename, line);
+ return -EINVAL;
+ }
+
+ if (deflang) {
+ if (streq(t, deflang)) {
+ log_warning("[%s:%u] language specified unnecessarily",
+ filename, line);
+ return 0;
+ } else
+ log_warning("[%s:%u] language differs from default for file",
+ filename, line);
+ }
+
+ *lang = strdup(t);
+ if (!*lang)
+ return -ENOMEM;
+
+ return 0;
+}
+
+int catalog_import_file(Hashmap *h, const char *path) {
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *payload = NULL;
+ size_t payload_size = 0, payload_allocated = 0;
+ unsigned n = 0;
+ sd_id128_t id;
+ _cleanup_free_ char *deflang = NULL, *lang = NULL;
+ bool got_id = false, empty_line = true;
+ int r;
+
+ assert(h);
+ assert(path);
+
+ f = fopen(path, "re");
+ if (!f)
+ return log_error_errno(errno, "Failed to open file %s: %m", path);
+
+ r = catalog_file_lang(path, &deflang);
+ if (r < 0)
+ log_error_errno(r, "Failed to determine language for file %s: %m", path);
+ if (r == 1)
+ log_debug("File %s has language %s.", path, deflang);
+
+ for (;;) {
+ char line[LINE_MAX];
+ size_t line_len;
+
+ if (!fgets(line, sizeof(line), f)) {
+ if (feof(f))
+ break;
+
+ return log_error_errno(errno, "Failed to read file %s: %m", path);
+ }
+
+ n++;
+
+ truncate_nl(line);
+
+ if (line[0] == 0) {
+ empty_line = true;
+ continue;
+ }
+
+ if (strchr(COMMENTS "\n", line[0]))
+ continue;
+
+ if (empty_line &&
+ strlen(line) >= 2+1+32 &&
+ line[0] == '-' &&
+ line[1] == '-' &&
+ line[2] == ' ' &&
+ (line[2+1+32] == ' ' || line[2+1+32] == '\0')) {
+
+ bool with_language;
+ sd_id128_t jd;
+
+ /* New entry */
+
+ with_language = line[2+1+32] != '\0';
+ line[2+1+32] = '\0';
+
+ if (sd_id128_from_string(line + 2 + 1, &jd) >= 0) {
+
+ if (got_id) {
+ if (payload_size == 0) {
+ log_error("[%s:%u] No payload text.", path, n);
+ return -EINVAL;
+ }
+
+ r = finish_item(h, id, lang ?: deflang, payload, payload_size);
+ if (r < 0)
+ return r;
+
+ lang = mfree(lang);
+ payload_size = 0;
+ }
+
+ if (with_language) {
+ char *t;
+
+ t = strstrip(line + 2 + 1 + 32 + 1);
+ r = catalog_entry_lang(path, n, t, deflang, &lang);
+ if (r < 0)
+ return r;
+ }
+
+ got_id = true;
+ empty_line = false;
+ id = jd;
+
+ continue;
+ }
+ }
+
+ /* Payload */
+ if (!got_id) {
+ log_error("[%s:%u] Got payload before ID.", path, n);
+ return -EINVAL;
+ }
+
+ line_len = strlen(line);
+ if (!GREEDY_REALLOC(payload, payload_allocated,
+ payload_size + (empty_line ? 1 : 0) + line_len + 1 + 1))
+ return log_oom();
+
+ if (empty_line)
+ payload[payload_size++] = '\n';
+ memcpy(payload + payload_size, line, line_len);
+ payload_size += line_len;
+ payload[payload_size++] = '\n';
+ payload[payload_size] = '\0';
+
+ empty_line = false;
+ }
+
+ if (got_id) {
+ if (payload_size == 0) {
+ log_error("[%s:%u] No payload text.", path, n);
+ return -EINVAL;
+ }
+
+ r = finish_item(h, id, lang ?: deflang, payload, payload_size);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int64_t write_catalog(const char *database, struct strbuf *sb,
+ CatalogItem *items, size_t n) {
+ CatalogHeader header;
+ _cleanup_fclose_ FILE *w = NULL;
+ int r;
+ _cleanup_free_ char *d, *p = NULL;
+ size_t k;
+
+ d = dirname_malloc(database);
+ if (!d)
+ return log_oom();
+
+ r = mkdir_p(d, 0775);
+ if (r < 0)
+ return log_error_errno(r, "Recursive mkdir %s: %m", d);
+
+ r = fopen_temporary(database, &w, &p);
+ if (r < 0)
+ return log_error_errno(r, "Failed to open database for writing: %s: %m",
+ database);
+
+ zero(header);
+ memcpy(header.signature, CATALOG_SIGNATURE, sizeof(header.signature));
+ header.header_size = htole64(ALIGN_TO(sizeof(CatalogHeader), 8));
+ header.catalog_item_size = htole64(sizeof(CatalogItem));
+ header.n_items = htole64(n);
+
+ r = -EIO;
+
+ k = fwrite(&header, 1, sizeof(header), w);
+ if (k != sizeof(header)) {
+ log_error("%s: failed to write header.", p);
+ goto error;
+ }
+
+ k = fwrite(items, 1, n * sizeof(CatalogItem), w);
+ if (k != n * sizeof(CatalogItem)) {
+ log_error("%s: failed to write database.", p);
+ goto error;
+ }
+
+ k = fwrite(sb->buf, 1, sb->len, w);
+ if (k != sb->len) {
+ log_error("%s: failed to write strings.", p);
+ goto error;
+ }
+
+ r = fflush_and_check(w);
+ if (r < 0) {
+ log_error_errno(r, "%s: failed to write database: %m", p);
+ goto error;
+ }
+
+ fchmod(fileno(w), 0644);
+
+ if (rename(p, database) < 0) {
+ r = log_error_errno(errno, "rename (%s -> %s) failed: %m", p, database);
+ goto error;
+ }
+
+ return ftello(w);
+
+error:
+ (void) unlink(p);
+ return r;
+}
+
+int catalog_update(const char* database, const char* root, const char* const* dirs) {
+ _cleanup_strv_free_ char **files = NULL;
+ char **f;
+ struct strbuf *sb = NULL;
+ _cleanup_hashmap_free_free_free_ Hashmap *h = NULL;
+ _cleanup_free_ CatalogItem *items = NULL;
+ ssize_t offset;
+ char *payload;
+ CatalogItem *i;
+ Iterator j;
+ unsigned n;
+ int r;
+ int64_t sz;
+
+ h = hashmap_new(&catalog_hash_ops);
+ sb = strbuf_new();
+
+ if (!h || !sb) {
+ r = log_oom();
+ goto finish;
+ }
+
+ r = conf_files_list_strv(&files, ".catalog", root, dirs);
+ if (r < 0) {
+ log_error_errno(r, "Failed to get catalog files: %m");
+ goto finish;
+ }
+
+ STRV_FOREACH(f, files) {
+ log_debug("Reading file '%s'", *f);
+ r = catalog_import_file(h, *f);
+ if (r < 0) {
+ log_error_errno(r, "Failed to import file '%s': %m", *f);
+ goto finish;
+ }
+ }
+
+ if (hashmap_size(h) <= 0) {
+ log_info("No items in catalog.");
+ goto finish;
+ } else
+ log_debug("Found %u items in catalog.", hashmap_size(h));
+
+ items = new(CatalogItem, hashmap_size(h));
+ if (!items) {
+ r = log_oom();
+ goto finish;
+ }
+
+ n = 0;
+ HASHMAP_FOREACH_KEY(payload, i, h, j) {
+ log_debug("Found " SD_ID128_FORMAT_STR ", language %s",
+ SD_ID128_FORMAT_VAL(i->id),
+ isempty(i->language) ? "C" : i->language);
+
+ offset = strbuf_add_string(sb, payload, strlen(payload));
+ if (offset < 0) {
+ r = log_oom();
+ goto finish;
+ }
+ i->offset = htole64((uint64_t) offset);
+ items[n++] = *i;
+ }
+
+ assert(n == hashmap_size(h));
+ qsort_safe(items, n, sizeof(CatalogItem), catalog_compare_func);
+
+ strbuf_complete(sb);
+
+ sz = write_catalog(database, sb, items, n);
+ if (sz < 0)
+ r = log_error_errno(sz, "Failed to write %s: %m", database);
+ else {
+ r = 0;
+ log_debug("%s: wrote %u items, with %zu bytes of strings, %"PRIi64" total size.",
+ database, n, sb->len, sz);
+ }
+
+finish:
+ strbuf_cleanup(sb);
+
+ return r;
+}
+
+static int open_mmap(const char *database, int *_fd, struct stat *_st, void **_p) {
+ const CatalogHeader *h;
+ int fd;
+ void *p;
+ struct stat st;
+
+ assert(_fd);
+ assert(_st);
+ assert(_p);
+
+ fd = open(database, O_RDONLY|O_CLOEXEC);
+ if (fd < 0)
+ return -errno;
+
+ if (fstat(fd, &st) < 0) {
+ safe_close(fd);
+ return -errno;
+ }
+
+ if (st.st_size < (off_t) sizeof(CatalogHeader)) {
+ safe_close(fd);
+ return -EINVAL;
+ }
+
+ p = mmap(NULL, PAGE_ALIGN(st.st_size), PROT_READ, MAP_SHARED, fd, 0);
+ if (p == MAP_FAILED) {
+ safe_close(fd);
+ return -errno;
+ }
+
+ h = p;
+ if (memcmp(h->signature, CATALOG_SIGNATURE, sizeof(h->signature)) != 0 ||
+ le64toh(h->header_size) < sizeof(CatalogHeader) ||
+ le64toh(h->catalog_item_size) < sizeof(CatalogItem) ||
+ h->incompatible_flags != 0 ||
+ le64toh(h->n_items) <= 0 ||
+ st.st_size < (off_t) (le64toh(h->header_size) + le64toh(h->catalog_item_size) * le64toh(h->n_items))) {
+ safe_close(fd);
+ munmap(p, st.st_size);
+ return -EBADMSG;
+ }
+
+ *_fd = fd;
+ *_st = st;
+ *_p = p;
+
+ return 0;
+}
+
+static const char *find_id(void *p, sd_id128_t id) {
+ CatalogItem key, *f = NULL;
+ const CatalogHeader *h = p;
+ const char *loc;
+
+ zero(key);
+ key.id = id;
+
+ loc = setlocale(LC_MESSAGES, NULL);
+ if (loc && loc[0] && !streq(loc, "C") && !streq(loc, "POSIX")) {
+ strncpy(key.language, loc, sizeof(key.language));
+ key.language[strcspn(key.language, ".@")] = 0;
+
+ f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func);
+ if (!f) {
+ char *e;
+
+ e = strchr(key.language, '_');
+ if (e) {
+ *e = 0;
+ f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func);
+ }
+ }
+ }
+
+ if (!f) {
+ zero(key.language);
+ f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func);
+ }
+
+ if (!f)
+ return NULL;
+
+ return (const char*) p +
+ le64toh(h->header_size) +
+ le64toh(h->n_items) * le64toh(h->catalog_item_size) +
+ le64toh(f->offset);
+}
+
+int catalog_get(const char* database, sd_id128_t id, char **_text) {
+ _cleanup_close_ int fd = -1;
+ void *p = NULL;
+ struct stat st = {};
+ char *text = NULL;
+ int r;
+ const char *s;
+
+ assert(_text);
+
+ r = open_mmap(database, &fd, &st, &p);
+ if (r < 0)
+ return r;
+
+ s = find_id(p, id);
+ if (!s) {
+ r = -ENOENT;
+ goto finish;
+ }
+
+ text = strdup(s);
+ if (!text) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ *_text = text;
+ r = 0;
+
+finish:
+ if (p)
+ munmap(p, st.st_size);
+
+ return r;
+}
+
+static char *find_header(const char *s, const char *header) {
+
+ for (;;) {
+ const char *v;
+
+ v = startswith(s, header);
+ if (v) {
+ v += strspn(v, WHITESPACE);
+ return strndup(v, strcspn(v, NEWLINE));
+ }
+
+ if (!next_header(&s))
+ return NULL;
+ }
+}
+
+static void dump_catalog_entry(FILE *f, sd_id128_t id, const char *s, bool oneline) {
+ if (oneline) {
+ _cleanup_free_ char *subject = NULL, *defined_by = NULL;
+
+ subject = find_header(s, "Subject:");
+ defined_by = find_header(s, "Defined-By:");
+
+ fprintf(f, SD_ID128_FORMAT_STR " %s: %s\n",
+ SD_ID128_FORMAT_VAL(id),
+ strna(defined_by), strna(subject));
+ } else
+ fprintf(f, "-- " SD_ID128_FORMAT_STR "\n%s\n",
+ SD_ID128_FORMAT_VAL(id), s);
+}
+
+
+int catalog_list(FILE *f, const char *database, bool oneline) {
+ _cleanup_close_ int fd = -1;
+ void *p = NULL;
+ struct stat st;
+ const CatalogHeader *h;
+ const CatalogItem *items;
+ int r;
+ unsigned n;
+ sd_id128_t last_id;
+ bool last_id_set = false;
+
+ r = open_mmap(database, &fd, &st, &p);
+ if (r < 0)
+ return r;
+
+ h = p;
+ items = (const CatalogItem*) ((const uint8_t*) p + le64toh(h->header_size));
+
+ for (n = 0; n < le64toh(h->n_items); n++) {
+ const char *s;
+
+ if (last_id_set && sd_id128_equal(last_id, items[n].id))
+ continue;
+
+ assert_se(s = find_id(p, items[n].id));
+
+ dump_catalog_entry(f, items[n].id, s, oneline);
+
+ last_id_set = true;
+ last_id = items[n].id;
+ }
+
+ munmap(p, st.st_size);
+
+ return 0;
+}
+
+int catalog_list_items(FILE *f, const char *database, bool oneline, char **items) {
+ char **item;
+ int r = 0;
+
+ STRV_FOREACH(item, items) {
+ sd_id128_t id;
+ int k;
+ _cleanup_free_ char *msg = NULL;
+
+ k = sd_id128_from_string(*item, &id);
+ if (k < 0) {
+ log_error_errno(k, "Failed to parse id128 '%s': %m", *item);
+ if (r == 0)
+ r = k;
+ continue;
+ }
+
+ k = catalog_get(database, id, &msg);
+ if (k < 0) {
+ log_full_errno(k == -ENOENT ? LOG_NOTICE : LOG_ERR, k,
+ "Failed to retrieve catalog entry for '%s': %m", *item);
+ if (r == 0)
+ r = k;
+ continue;
+ }
+
+ dump_catalog_entry(f, id, msg, oneline);
+ }
+
+ return r;
+}
diff --git a/src/libsystemd/src/sd-journal/catalog.h b/src/libsystemd/src/sd-journal/catalog.h
new file mode 100644
index 0000000000..fa60757723
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/catalog.h
@@ -0,0 +1,36 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+
+#include <systemd/sd-id128.h>
+
+#include "basic/hashmap.h"
+#include "basic/strbuf.h"
+
+int catalog_import_file(Hashmap *h, const char *path);
+int catalog_update(const char* database, const char* root, const char* const* dirs);
+int catalog_get(const char* database, sd_id128_t id, char **data);
+int catalog_list(FILE *f, const char* database, bool oneline);
+int catalog_list_items(FILE *f, const char* database, bool oneline, char **items);
+int catalog_file_lang(const char *filename, char **lang);
+extern const char * const catalog_file_dirs[];
+extern const struct hash_ops catalog_hash_ops;
diff --git a/src/libsystemd/src/sd-journal/compress.c b/src/libsystemd/src/sd-journal/compress.c
new file mode 100644
index 0000000000..a96d93c455
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/compress.c
@@ -0,0 +1,684 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#ifdef HAVE_XZ
+#include <lzma.h>
+#endif
+
+#ifdef HAVE_LZ4
+#include <lz4.h>
+#include <lz4frame.h>
+#endif
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/io-util.h"
+#include "basic/macro.h"
+#include "basic/sparse-endian.h"
+#include "basic/string-table.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
+
+#include "compress.h"
+#include "journal-def.h"
+
+#ifdef HAVE_LZ4
+DEFINE_TRIVIAL_CLEANUP_FUNC(LZ4F_compressionContext_t, LZ4F_freeCompressionContext);
+DEFINE_TRIVIAL_CLEANUP_FUNC(LZ4F_decompressionContext_t, LZ4F_freeDecompressionContext);
+#endif
+
+#define ALIGN_8(l) ALIGN_TO(l, sizeof(size_t))
+
+static const char* const object_compressed_table[_OBJECT_COMPRESSED_MAX] = {
+ [OBJECT_COMPRESSED_XZ] = "XZ",
+ [OBJECT_COMPRESSED_LZ4] = "LZ4",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(object_compressed, int);
+
+int compress_blob_xz(const void *src, uint64_t src_size,
+ void *dst, size_t dst_alloc_size, size_t *dst_size) {
+#ifdef HAVE_XZ
+ static const lzma_options_lzma opt = {
+ 1u << 20u, NULL, 0, LZMA_LC_DEFAULT, LZMA_LP_DEFAULT,
+ LZMA_PB_DEFAULT, LZMA_MODE_FAST, 128, LZMA_MF_HC3, 4
+ };
+ static const lzma_filter filters[] = {
+ { LZMA_FILTER_LZMA2, (lzma_options_lzma*) &opt },
+ { LZMA_VLI_UNKNOWN, NULL }
+ };
+ lzma_ret ret;
+ size_t out_pos = 0;
+
+ assert(src);
+ assert(src_size > 0);
+ assert(dst);
+ assert(dst_alloc_size > 0);
+ assert(dst_size);
+
+ /* Returns < 0 if we couldn't compress the data or the
+ * compressed result is longer than the original */
+
+ if (src_size < 80)
+ return -ENOBUFS;
+
+ ret = lzma_stream_buffer_encode((lzma_filter*) filters, LZMA_CHECK_NONE, NULL,
+ src, src_size, dst, &out_pos, dst_alloc_size);
+ if (ret != LZMA_OK)
+ return -ENOBUFS;
+
+ *dst_size = out_pos;
+ return 0;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int compress_blob_lz4(const void *src, uint64_t src_size,
+ void *dst, size_t dst_alloc_size, size_t *dst_size) {
+#ifdef HAVE_LZ4
+ int r;
+
+ assert(src);
+ assert(src_size > 0);
+ assert(dst);
+ assert(dst_alloc_size > 0);
+ assert(dst_size);
+
+ /* Returns < 0 if we couldn't compress the data or the
+ * compressed result is longer than the original */
+
+ if (src_size < 9)
+ return -ENOBUFS;
+
+ r = LZ4_compress_limitedOutput(src, (char*)dst + 8, src_size, (int) dst_alloc_size - 8);
+ if (r <= 0)
+ return -ENOBUFS;
+
+ *(le64_t*) dst = htole64(src_size);
+ *dst_size = r + 8;
+
+ return 0;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+
+int decompress_blob_xz(const void *src, uint64_t src_size,
+ void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) {
+
+#ifdef HAVE_XZ
+ _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT;
+ lzma_ret ret;
+ size_t space;
+
+ assert(src);
+ assert(src_size > 0);
+ assert(dst);
+ assert(dst_alloc_size);
+ assert(dst_size);
+ assert(*dst_alloc_size == 0 || *dst);
+
+ ret = lzma_stream_decoder(&s, UINT64_MAX, 0);
+ if (ret != LZMA_OK)
+ return -ENOMEM;
+
+ space = MIN(src_size * 2, dst_max ?: (size_t) -1);
+ if (!greedy_realloc(dst, dst_alloc_size, space, 1))
+ return -ENOMEM;
+
+ s.next_in = src;
+ s.avail_in = src_size;
+
+ s.next_out = *dst;
+ s.avail_out = space;
+
+ for (;;) {
+ size_t used;
+
+ ret = lzma_code(&s, LZMA_FINISH);
+
+ if (ret == LZMA_STREAM_END)
+ break;
+ else if (ret != LZMA_OK)
+ return -ENOMEM;
+
+ if (dst_max > 0 && (space - s.avail_out) >= dst_max)
+ break;
+ else if (dst_max > 0 && space == dst_max)
+ return -ENOBUFS;
+
+ used = space - s.avail_out;
+ space = MIN(2 * space, dst_max ?: (size_t) -1);
+ if (!greedy_realloc(dst, dst_alloc_size, space, 1))
+ return -ENOMEM;
+
+ s.avail_out = space - used;
+ s.next_out = *(uint8_t**)dst + used;
+ }
+
+ *dst_size = space - s.avail_out;
+ return 0;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_blob_lz4(const void *src, uint64_t src_size,
+ void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) {
+
+#ifdef HAVE_LZ4
+ char* out;
+ int r, size; /* LZ4 uses int for size */
+
+ assert(src);
+ assert(src_size > 0);
+ assert(dst);
+ assert(dst_alloc_size);
+ assert(dst_size);
+ assert(*dst_alloc_size == 0 || *dst);
+
+ if (src_size <= 8)
+ return -EBADMSG;
+
+ size = le64toh( *(le64_t*)src );
+ if (size < 0 || (unsigned) size != le64toh(*(le64_t*)src))
+ return -EFBIG;
+ if ((size_t) size > *dst_alloc_size) {
+ out = realloc(*dst, size);
+ if (!out)
+ return -ENOMEM;
+ *dst = out;
+ *dst_alloc_size = size;
+ } else
+ out = *dst;
+
+ r = LZ4_decompress_safe((char*)src + 8, out, src_size - 8, size);
+ if (r < 0 || r != size)
+ return -EBADMSG;
+
+ *dst_size = size;
+ return 0;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_blob(int compression,
+ const void *src, uint64_t src_size,
+ void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max) {
+ if (compression == OBJECT_COMPRESSED_XZ)
+ return decompress_blob_xz(src, src_size,
+ dst, dst_alloc_size, dst_size, dst_max);
+ else if (compression == OBJECT_COMPRESSED_LZ4)
+ return decompress_blob_lz4(src, src_size,
+ dst, dst_alloc_size, dst_size, dst_max);
+ else
+ return -EBADMSG;
+}
+
+
+int decompress_startswith_xz(const void *src, uint64_t src_size,
+ void **buffer, size_t *buffer_size,
+ const void *prefix, size_t prefix_len,
+ uint8_t extra) {
+
+#ifdef HAVE_XZ
+ _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT;
+ lzma_ret ret;
+
+ /* Checks whether the decompressed blob starts with the
+ * mentioned prefix. The byte extra needs to follow the
+ * prefix */
+
+ assert(src);
+ assert(src_size > 0);
+ assert(buffer);
+ assert(buffer_size);
+ assert(prefix);
+ assert(*buffer_size == 0 || *buffer);
+
+ ret = lzma_stream_decoder(&s, UINT64_MAX, 0);
+ if (ret != LZMA_OK)
+ return -EBADMSG;
+
+ if (!(greedy_realloc(buffer, buffer_size, ALIGN_8(prefix_len + 1), 1)))
+ return -ENOMEM;
+
+ s.next_in = src;
+ s.avail_in = src_size;
+
+ s.next_out = *buffer;
+ s.avail_out = *buffer_size;
+
+ for (;;) {
+ ret = lzma_code(&s, LZMA_FINISH);
+
+ if (ret != LZMA_STREAM_END && ret != LZMA_OK)
+ return -EBADMSG;
+
+ if (*buffer_size - s.avail_out >= prefix_len + 1)
+ return memcmp(*buffer, prefix, prefix_len) == 0 &&
+ ((const uint8_t*) *buffer)[prefix_len] == extra;
+
+ if (ret == LZMA_STREAM_END)
+ return 0;
+
+ s.avail_out += *buffer_size;
+
+ if (!(greedy_realloc(buffer, buffer_size, *buffer_size * 2, 1)))
+ return -ENOMEM;
+
+ s.next_out = *(uint8_t**)buffer + *buffer_size - s.avail_out;
+ }
+
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_startswith_lz4(const void *src, uint64_t src_size,
+ void **buffer, size_t *buffer_size,
+ const void *prefix, size_t prefix_len,
+ uint8_t extra) {
+#ifdef HAVE_LZ4
+ /* Checks whether the decompressed blob starts with the
+ * mentioned prefix. The byte extra needs to follow the
+ * prefix */
+
+ int r;
+ size_t size;
+
+ assert(src);
+ assert(src_size > 0);
+ assert(buffer);
+ assert(buffer_size);
+ assert(prefix);
+ assert(*buffer_size == 0 || *buffer);
+
+ if (src_size <= 8)
+ return -EBADMSG;
+
+ if (!(greedy_realloc(buffer, buffer_size, ALIGN_8(prefix_len + 1), 1)))
+ return -ENOMEM;
+
+ r = LZ4_decompress_safe_partial((char*)src + 8, *buffer, src_size - 8,
+ prefix_len + 1, *buffer_size);
+ if (r >= 0)
+ size = (unsigned) r;
+ else {
+ /* lz4 always tries to decode full "sequence", so in
+ * pathological cases might need to decompress the
+ * full field. */
+ r = decompress_blob_lz4(src, src_size, buffer, buffer_size, &size, 0);
+ if (r < 0)
+ return r;
+ }
+
+ if (size >= prefix_len + 1)
+ return memcmp(*buffer, prefix, prefix_len) == 0 &&
+ ((const uint8_t*) *buffer)[prefix_len] == extra;
+ else
+ return 0;
+
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_startswith(int compression,
+ const void *src, uint64_t src_size,
+ void **buffer, size_t *buffer_size,
+ const void *prefix, size_t prefix_len,
+ uint8_t extra) {
+ if (compression == OBJECT_COMPRESSED_XZ)
+ return decompress_startswith_xz(src, src_size,
+ buffer, buffer_size,
+ prefix, prefix_len,
+ extra);
+ else if (compression == OBJECT_COMPRESSED_LZ4)
+ return decompress_startswith_lz4(src, src_size,
+ buffer, buffer_size,
+ prefix, prefix_len,
+ extra);
+ else
+ return -EBADMSG;
+}
+
+int compress_stream_xz(int fdf, int fdt, uint64_t max_bytes) {
+#ifdef HAVE_XZ
+ _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT;
+ lzma_ret ret;
+ uint8_t buf[BUFSIZ], out[BUFSIZ];
+ lzma_action action = LZMA_RUN;
+
+ assert(fdf >= 0);
+ assert(fdt >= 0);
+
+ ret = lzma_easy_encoder(&s, LZMA_PRESET_DEFAULT, LZMA_CHECK_CRC64);
+ if (ret != LZMA_OK) {
+ log_error("Failed to initialize XZ encoder: code %u", ret);
+ return -EINVAL;
+ }
+
+ for (;;) {
+ if (s.avail_in == 0 && action == LZMA_RUN) {
+ size_t m = sizeof(buf);
+ ssize_t n;
+
+ if (max_bytes != (uint64_t) -1 && (uint64_t) m > max_bytes)
+ m = (size_t) max_bytes;
+
+ n = read(fdf, buf, m);
+ if (n < 0)
+ return -errno;
+ if (n == 0)
+ action = LZMA_FINISH;
+ else {
+ s.next_in = buf;
+ s.avail_in = n;
+
+ if (max_bytes != (uint64_t) -1) {
+ assert(max_bytes >= (uint64_t) n);
+ max_bytes -= n;
+ }
+ }
+ }
+
+ if (s.avail_out == 0) {
+ s.next_out = out;
+ s.avail_out = sizeof(out);
+ }
+
+ ret = lzma_code(&s, action);
+ if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
+ log_error("Compression failed: code %u", ret);
+ return -EBADMSG;
+ }
+
+ if (s.avail_out == 0 || ret == LZMA_STREAM_END) {
+ ssize_t n, k;
+
+ n = sizeof(out) - s.avail_out;
+
+ k = loop_write(fdt, out, n, false);
+ if (k < 0)
+ return k;
+
+ if (ret == LZMA_STREAM_END) {
+ log_debug("XZ compression finished (%"PRIu64" -> %"PRIu64" bytes, %.1f%%)",
+ s.total_in, s.total_out,
+ (double) s.total_out / s.total_in * 100);
+
+ return 0;
+ }
+ }
+ }
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+#define LZ4_BUFSIZE (512*1024u)
+
+int compress_stream_lz4(int fdf, int fdt, uint64_t max_bytes) {
+
+#ifdef HAVE_LZ4
+ LZ4F_errorCode_t c;
+ _cleanup_(LZ4F_freeCompressionContextp) LZ4F_compressionContext_t ctx = NULL;
+ _cleanup_free_ char *buf = NULL;
+ char *src = NULL;
+ size_t size, n, total_in = 0, total_out, offset = 0, frame_size;
+ struct stat st;
+ int r;
+ static const LZ4F_compressOptions_t options = {
+ .stableSrc = 1,
+ };
+ static const LZ4F_preferences_t preferences = {
+ .frameInfo.blockSizeID = 5,
+ };
+
+ c = LZ4F_createCompressionContext(&ctx, LZ4F_VERSION);
+ if (LZ4F_isError(c))
+ return -ENOMEM;
+
+ if (fstat(fdf, &st) < 0)
+ return log_debug_errno(errno, "fstat() failed: %m");
+
+ frame_size = LZ4F_compressBound(LZ4_BUFSIZE, &preferences);
+ size = frame_size + 64*1024; /* add some space for header and trailer */
+ buf = malloc(size);
+ if (!buf)
+ return -ENOMEM;
+
+ n = offset = total_out = LZ4F_compressBegin(ctx, buf, size, &preferences);
+ if (LZ4F_isError(n))
+ return -EINVAL;
+
+ src = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fdf, 0);
+ if (src == MAP_FAILED)
+ return -errno;
+
+ log_debug("Buffer size is %zu bytes, header size %zu bytes.", size, n);
+
+ while (total_in < (size_t) st.st_size) {
+ ssize_t k;
+
+ k = MIN(LZ4_BUFSIZE, st.st_size - total_in);
+ n = LZ4F_compressUpdate(ctx, buf + offset, size - offset,
+ src + total_in, k, &options);
+ if (LZ4F_isError(n)) {
+ r = -ENOTRECOVERABLE;
+ goto cleanup;
+ }
+
+ total_in += k;
+ offset += n;
+ total_out += n;
+
+ if (max_bytes != (uint64_t) -1 && total_out > (size_t) max_bytes) {
+ log_debug("Compressed stream longer than %"PRIu64" bytes", max_bytes);
+ return -EFBIG;
+ }
+
+ if (size - offset < frame_size + 4) {
+ k = loop_write(fdt, buf, offset, false);
+ if (k < 0) {
+ r = k;
+ goto cleanup;
+ }
+ offset = 0;
+ }
+ }
+
+ n = LZ4F_compressEnd(ctx, buf + offset, size - offset, &options);
+ if (LZ4F_isError(n)) {
+ r = -ENOTRECOVERABLE;
+ goto cleanup;
+ }
+
+ offset += n;
+ total_out += n;
+ r = loop_write(fdt, buf, offset, false);
+ if (r < 0)
+ goto cleanup;
+
+ log_debug("LZ4 compression finished (%zu -> %zu bytes, %.1f%%)",
+ total_in, total_out,
+ (double) total_out / total_in * 100);
+ cleanup:
+ munmap(src, st.st_size);
+ return r;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_stream_xz(int fdf, int fdt, uint64_t max_bytes) {
+
+#ifdef HAVE_XZ
+ _cleanup_(lzma_end) lzma_stream s = LZMA_STREAM_INIT;
+ lzma_ret ret;
+
+ uint8_t buf[BUFSIZ], out[BUFSIZ];
+ lzma_action action = LZMA_RUN;
+
+ assert(fdf >= 0);
+ assert(fdt >= 0);
+
+ ret = lzma_stream_decoder(&s, UINT64_MAX, 0);
+ if (ret != LZMA_OK) {
+ log_debug("Failed to initialize XZ decoder: code %u", ret);
+ return -ENOMEM;
+ }
+
+ for (;;) {
+ if (s.avail_in == 0 && action == LZMA_RUN) {
+ ssize_t n;
+
+ n = read(fdf, buf, sizeof(buf));
+ if (n < 0)
+ return -errno;
+ if (n == 0)
+ action = LZMA_FINISH;
+ else {
+ s.next_in = buf;
+ s.avail_in = n;
+ }
+ }
+
+ if (s.avail_out == 0) {
+ s.next_out = out;
+ s.avail_out = sizeof(out);
+ }
+
+ ret = lzma_code(&s, action);
+ if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
+ log_debug("Decompression failed: code %u", ret);
+ return -EBADMSG;
+ }
+
+ if (s.avail_out == 0 || ret == LZMA_STREAM_END) {
+ ssize_t n, k;
+
+ n = sizeof(out) - s.avail_out;
+
+ if (max_bytes != (uint64_t) -1) {
+ if (max_bytes < (uint64_t) n)
+ return -EFBIG;
+
+ max_bytes -= n;
+ }
+
+ k = loop_write(fdt, out, n, false);
+ if (k < 0)
+ return k;
+
+ if (ret == LZMA_STREAM_END) {
+ log_debug("XZ decompression finished (%"PRIu64" -> %"PRIu64" bytes, %.1f%%)",
+ s.total_in, s.total_out,
+ (double) s.total_out / s.total_in * 100);
+
+ return 0;
+ }
+ }
+ }
+#else
+ log_debug("Cannot decompress file. Compiled without XZ support.");
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_stream_lz4(int in, int out, uint64_t max_bytes) {
+#ifdef HAVE_LZ4
+ size_t c;
+ _cleanup_(LZ4F_freeDecompressionContextp) LZ4F_decompressionContext_t ctx = NULL;
+ _cleanup_free_ char *buf = NULL;
+ char *src;
+ struct stat st;
+ int r = 0;
+ size_t total_in = 0, total_out = 0;
+
+ c = LZ4F_createDecompressionContext(&ctx, LZ4F_VERSION);
+ if (LZ4F_isError(c))
+ return -ENOMEM;
+
+ if (fstat(in, &st) < 0)
+ return log_debug_errno(errno, "fstat() failed: %m");
+
+ buf = malloc(LZ4_BUFSIZE);
+ if (!buf)
+ return -ENOMEM;
+
+ src = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, in, 0);
+ if (src == MAP_FAILED)
+ return -errno;
+
+ while (total_in < (size_t) st.st_size) {
+ size_t produced = LZ4_BUFSIZE;
+ size_t used = st.st_size - total_in;
+
+ c = LZ4F_decompress(ctx, buf, &produced, src + total_in, &used, NULL);
+ if (LZ4F_isError(c)) {
+ r = -EBADMSG;
+ goto cleanup;
+ }
+
+ total_in += used;
+ total_out += produced;
+
+ if (max_bytes != (uint64_t) -1 && total_out > (size_t) max_bytes) {
+ log_debug("Decompressed stream longer than %"PRIu64" bytes", max_bytes);
+ r = -EFBIG;
+ goto cleanup;
+ }
+
+ r = loop_write(out, buf, produced, false);
+ if (r < 0)
+ goto cleanup;
+ }
+
+ log_debug("LZ4 decompression finished (%zu -> %zu bytes, %.1f%%)",
+ total_in, total_out,
+ (double) total_out / total_in * 100);
+ cleanup:
+ munmap(src, st.st_size);
+ return r;
+#else
+ log_debug("Cannot decompress file. Compiled without LZ4 support.");
+ return -EPROTONOSUPPORT;
+#endif
+}
+
+int decompress_stream(const char *filename, int fdf, int fdt, uint64_t max_bytes) {
+
+ if (endswith(filename, ".lz4"))
+ return decompress_stream_lz4(fdf, fdt, max_bytes);
+ else if (endswith(filename, ".xz"))
+ return decompress_stream_xz(fdf, fdt, max_bytes);
+ else
+ return -EPROTONOSUPPORT;
+}
diff --git a/src/libsystemd/src/sd-journal/compress.h b/src/libsystemd/src/sd-journal/compress.h
new file mode 100644
index 0000000000..c138099d9a
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/compress.h
@@ -0,0 +1,85 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <unistd.h>
+
+#include "journal-def.h"
+
+const char* object_compressed_to_string(int compression);
+int object_compressed_from_string(const char *compression);
+
+int compress_blob_xz(const void *src, uint64_t src_size,
+ void *dst, size_t dst_alloc_size, size_t *dst_size);
+int compress_blob_lz4(const void *src, uint64_t src_size,
+ void *dst, size_t dst_alloc_size, size_t *dst_size);
+
+static inline int compress_blob(const void *src, uint64_t src_size,
+ void *dst, size_t dst_alloc_size, size_t *dst_size) {
+ int r;
+#ifdef HAVE_LZ4
+ r = compress_blob_lz4(src, src_size, dst, dst_alloc_size, dst_size);
+ if (r == 0)
+ return OBJECT_COMPRESSED_LZ4;
+#else
+ r = compress_blob_xz(src, src_size, dst, dst_alloc_size, dst_size);
+ if (r == 0)
+ return OBJECT_COMPRESSED_XZ;
+#endif
+ return r;
+}
+
+int decompress_blob_xz(const void *src, uint64_t src_size,
+ void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
+int decompress_blob_lz4(const void *src, uint64_t src_size,
+ void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
+int decompress_blob(int compression,
+ const void *src, uint64_t src_size,
+ void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
+
+int decompress_startswith_xz(const void *src, uint64_t src_size,
+ void **buffer, size_t *buffer_size,
+ const void *prefix, size_t prefix_len,
+ uint8_t extra);
+int decompress_startswith_lz4(const void *src, uint64_t src_size,
+ void **buffer, size_t *buffer_size,
+ const void *prefix, size_t prefix_len,
+ uint8_t extra);
+int decompress_startswith(int compression,
+ const void *src, uint64_t src_size,
+ void **buffer, size_t *buffer_size,
+ const void *prefix, size_t prefix_len,
+ uint8_t extra);
+
+int compress_stream_xz(int fdf, int fdt, uint64_t max_bytes);
+int compress_stream_lz4(int fdf, int fdt, uint64_t max_bytes);
+
+int decompress_stream_xz(int fdf, int fdt, uint64_t max_size);
+int decompress_stream_lz4(int fdf, int fdt, uint64_t max_size);
+
+#ifdef HAVE_LZ4
+# define compress_stream compress_stream_lz4
+# define COMPRESSED_EXT ".lz4"
+#else
+# define compress_stream compress_stream_xz
+# define COMPRESSED_EXT ".xz"
+#endif
+
+int decompress_stream(const char *filename, int fdf, int fdt, uint64_t max_bytes);
diff --git a/src/libsystemd/src/sd-journal/fsprg.c b/src/libsystemd/src/sd-journal/fsprg.c
new file mode 100644
index 0000000000..612b10f3a9
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/fsprg.c
@@ -0,0 +1,374 @@
+/*
+ * fsprg v0.1 - (seekable) forward-secure pseudorandom generator
+ * Copyright (C) 2012 B. Poettering
+ * Contact: fsprg@point-at-infinity.org
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+/*
+ * See "Practical Secure Logging: Seekable Sequential Key Generators"
+ * by G. A. Marson, B. Poettering for details:
+ *
+ * http://eprint.iacr.org/2013/397
+ */
+
+#include <gcrypt.h>
+#include <string.h>
+
+#include "fsprg.h"
+#include "gcrypt-util.h"
+
+#define ISVALID_SECPAR(secpar) (((secpar) % 16 == 0) && ((secpar) >= 16) && ((secpar) <= 16384))
+#define VALIDATE_SECPAR(secpar) assert(ISVALID_SECPAR(secpar));
+
+#define RND_HASH GCRY_MD_SHA256
+#define RND_GEN_P 0x01
+#define RND_GEN_Q 0x02
+#define RND_GEN_X 0x03
+
+/******************************************************************************/
+
+static void mpi_export(void *buf, size_t buflen, const gcry_mpi_t x) {
+ unsigned len;
+ size_t nwritten;
+
+ assert(gcry_mpi_cmp_ui(x, 0) >= 0);
+ len = (gcry_mpi_get_nbits(x) + 7) / 8;
+ assert(len <= buflen);
+ memzero(buf, buflen);
+ gcry_mpi_print(GCRYMPI_FMT_USG, buf + (buflen - len), len, &nwritten, x);
+ assert(nwritten == len);
+}
+
+static gcry_mpi_t mpi_import(const void *buf, size_t buflen) {
+ gcry_mpi_t h;
+ unsigned len;
+
+ assert_se(gcry_mpi_scan(&h, GCRYMPI_FMT_USG, buf, buflen, NULL) == 0);
+ len = (gcry_mpi_get_nbits(h) + 7) / 8;
+ assert(len <= buflen);
+ assert(gcry_mpi_cmp_ui(h, 0) >= 0);
+
+ return h;
+}
+
+static void uint64_export(void *buf, size_t buflen, uint64_t x) {
+ assert(buflen == 8);
+ ((uint8_t*) buf)[0] = (x >> 56) & 0xff;
+ ((uint8_t*) buf)[1] = (x >> 48) & 0xff;
+ ((uint8_t*) buf)[2] = (x >> 40) & 0xff;
+ ((uint8_t*) buf)[3] = (x >> 32) & 0xff;
+ ((uint8_t*) buf)[4] = (x >> 24) & 0xff;
+ ((uint8_t*) buf)[5] = (x >> 16) & 0xff;
+ ((uint8_t*) buf)[6] = (x >> 8) & 0xff;
+ ((uint8_t*) buf)[7] = (x >> 0) & 0xff;
+}
+
+_pure_ static uint64_t uint64_import(const void *buf, size_t buflen) {
+ assert(buflen == 8);
+ return
+ (uint64_t)(((uint8_t*) buf)[0]) << 56 |
+ (uint64_t)(((uint8_t*) buf)[1]) << 48 |
+ (uint64_t)(((uint8_t*) buf)[2]) << 40 |
+ (uint64_t)(((uint8_t*) buf)[3]) << 32 |
+ (uint64_t)(((uint8_t*) buf)[4]) << 24 |
+ (uint64_t)(((uint8_t*) buf)[5]) << 16 |
+ (uint64_t)(((uint8_t*) buf)[6]) << 8 |
+ (uint64_t)(((uint8_t*) buf)[7]) << 0;
+}
+
+/* deterministically generate from seed/idx a string of buflen pseudorandom bytes */
+static void det_randomize(void *buf, size_t buflen, const void *seed, size_t seedlen, uint32_t idx) {
+ gcry_md_hd_t hd, hd2;
+ size_t olen, cpylen;
+ uint32_t ctr;
+
+ olen = gcry_md_get_algo_dlen(RND_HASH);
+ gcry_md_open(&hd, RND_HASH, 0);
+ gcry_md_write(hd, seed, seedlen);
+ gcry_md_putc(hd, (idx >> 24) & 0xff);
+ gcry_md_putc(hd, (idx >> 16) & 0xff);
+ gcry_md_putc(hd, (idx >> 8) & 0xff);
+ gcry_md_putc(hd, (idx >> 0) & 0xff);
+
+ for (ctr = 0; buflen; ctr++) {
+ gcry_md_copy(&hd2, hd);
+ gcry_md_putc(hd2, (ctr >> 24) & 0xff);
+ gcry_md_putc(hd2, (ctr >> 16) & 0xff);
+ gcry_md_putc(hd2, (ctr >> 8) & 0xff);
+ gcry_md_putc(hd2, (ctr >> 0) & 0xff);
+ gcry_md_final(hd2);
+ cpylen = (buflen < olen) ? buflen : olen;
+ memcpy(buf, gcry_md_read(hd2, RND_HASH), cpylen);
+ gcry_md_close(hd2);
+ buf += cpylen;
+ buflen -= cpylen;
+ }
+ gcry_md_close(hd);
+}
+
+/* deterministically generate from seed/idx a prime of length `bits' that is 3 (mod 4) */
+static gcry_mpi_t genprime3mod4(int bits, const void *seed, size_t seedlen, uint32_t idx) {
+ size_t buflen = bits / 8;
+ uint8_t buf[buflen];
+ gcry_mpi_t p;
+
+ assert(bits % 8 == 0);
+ assert(buflen > 0);
+
+ det_randomize(buf, buflen, seed, seedlen, idx);
+ buf[0] |= 0xc0; /* set upper two bits, so that n=pq has maximum size */
+ buf[buflen - 1] |= 0x03; /* set lower two bits, to have result 3 (mod 4) */
+
+ p = mpi_import(buf, buflen);
+ while (gcry_prime_check(p, 0))
+ gcry_mpi_add_ui(p, p, 4);
+
+ return p;
+}
+
+/* deterministically generate from seed/idx a quadratic residue (mod n) */
+static gcry_mpi_t gensquare(const gcry_mpi_t n, const void *seed, size_t seedlen, uint32_t idx, unsigned secpar) {
+ size_t buflen = secpar / 8;
+ uint8_t buf[buflen];
+ gcry_mpi_t x;
+
+ det_randomize(buf, buflen, seed, seedlen, idx);
+ buf[0] &= 0x7f; /* clear upper bit, so that we have x < n */
+ x = mpi_import(buf, buflen);
+ assert(gcry_mpi_cmp(x, n) < 0);
+ gcry_mpi_mulm(x, x, x, n);
+ return x;
+}
+
+/* compute 2^m (mod phi(p)), for a prime p */
+static gcry_mpi_t twopowmodphi(uint64_t m, const gcry_mpi_t p) {
+ gcry_mpi_t phi, r;
+ int n;
+
+ phi = gcry_mpi_new(0);
+ gcry_mpi_sub_ui(phi, p, 1);
+
+ /* count number of used bits in m */
+ for (n = 0; (1ULL << n) <= m; n++)
+ ;
+
+ r = gcry_mpi_new(0);
+ gcry_mpi_set_ui(r, 1);
+ while (n) { /* square and multiply algorithm for fast exponentiation */
+ n--;
+ gcry_mpi_mulm(r, r, r, phi);
+ if (m & ((uint64_t)1 << n)) {
+ gcry_mpi_add(r, r, r);
+ if (gcry_mpi_cmp(r, phi) >= 0)
+ gcry_mpi_sub(r, r, phi);
+ }
+ }
+
+ gcry_mpi_release(phi);
+ return r;
+}
+
+/* Decompose $x \in Z_n$ into $(xp,xq) \in Z_p \times Z_q$ using Chinese Remainder Theorem */
+static void CRT_decompose(gcry_mpi_t *xp, gcry_mpi_t *xq, const gcry_mpi_t x, const gcry_mpi_t p, const gcry_mpi_t q) {
+ *xp = gcry_mpi_new(0);
+ *xq = gcry_mpi_new(0);
+ gcry_mpi_mod(*xp, x, p);
+ gcry_mpi_mod(*xq, x, q);
+}
+
+/* Compose $(xp,xq) \in Z_p \times Z_q$ into $x \in Z_n$ using Chinese Remainder Theorem */
+static void CRT_compose(gcry_mpi_t *x, const gcry_mpi_t xp, const gcry_mpi_t xq, const gcry_mpi_t p, const gcry_mpi_t q) {
+ gcry_mpi_t a, u;
+
+ a = gcry_mpi_new(0);
+ u = gcry_mpi_new(0);
+ *x = gcry_mpi_new(0);
+ gcry_mpi_subm(a, xq, xp, q);
+ gcry_mpi_invm(u, p, q);
+ gcry_mpi_mulm(a, a, u, q); /* a = (xq - xp) / p (mod q) */
+ gcry_mpi_mul(*x, p, a);
+ gcry_mpi_add(*x, *x, xp); /* x = p * ((xq - xp) / p mod q) + xp */
+ gcry_mpi_release(a);
+ gcry_mpi_release(u);
+}
+
+/******************************************************************************/
+
+size_t FSPRG_mskinbytes(unsigned _secpar) {
+ VALIDATE_SECPAR(_secpar);
+ return 2 + 2 * (_secpar / 2) / 8; /* to store header,p,q */
+}
+
+size_t FSPRG_mpkinbytes(unsigned _secpar) {
+ VALIDATE_SECPAR(_secpar);
+ return 2 + _secpar / 8; /* to store header,n */
+}
+
+size_t FSPRG_stateinbytes(unsigned _secpar) {
+ VALIDATE_SECPAR(_secpar);
+ return 2 + 2 * _secpar / 8 + 8; /* to store header,n,x,epoch */
+}
+
+static void store_secpar(void *buf, uint16_t secpar) {
+ secpar = secpar / 16 - 1;
+ ((uint8_t*) buf)[0] = (secpar >> 8) & 0xff;
+ ((uint8_t*) buf)[1] = (secpar >> 0) & 0xff;
+}
+
+static uint16_t read_secpar(const void *buf) {
+ uint16_t secpar;
+ secpar =
+ (uint16_t)(((uint8_t*) buf)[0]) << 8 |
+ (uint16_t)(((uint8_t*) buf)[1]) << 0;
+ return 16 * (secpar + 1);
+}
+
+void FSPRG_GenMK(void *msk, void *mpk, const void *seed, size_t seedlen, unsigned _secpar) {
+ uint8_t iseed[FSPRG_RECOMMENDED_SEEDLEN];
+ gcry_mpi_t n, p, q;
+ uint16_t secpar;
+
+ VALIDATE_SECPAR(_secpar);
+ secpar = _secpar;
+
+ initialize_libgcrypt(false);
+
+ if (!seed) {
+ gcry_randomize(iseed, FSPRG_RECOMMENDED_SEEDLEN, GCRY_STRONG_RANDOM);
+ seed = iseed;
+ seedlen = FSPRG_RECOMMENDED_SEEDLEN;
+ }
+
+ p = genprime3mod4(secpar / 2, seed, seedlen, RND_GEN_P);
+ q = genprime3mod4(secpar / 2, seed, seedlen, RND_GEN_Q);
+
+ if (msk) {
+ store_secpar(msk + 0, secpar);
+ mpi_export(msk + 2 + 0 * (secpar / 2) / 8, (secpar / 2) / 8, p);
+ mpi_export(msk + 2 + 1 * (secpar / 2) / 8, (secpar / 2) / 8, q);
+ }
+
+ if (mpk) {
+ n = gcry_mpi_new(0);
+ gcry_mpi_mul(n, p, q);
+ assert(gcry_mpi_get_nbits(n) == secpar);
+
+ store_secpar(mpk + 0, secpar);
+ mpi_export(mpk + 2, secpar / 8, n);
+
+ gcry_mpi_release(n);
+ }
+
+ gcry_mpi_release(p);
+ gcry_mpi_release(q);
+}
+
+void FSPRG_GenState0(void *state, const void *mpk, const void *seed, size_t seedlen) {
+ gcry_mpi_t n, x;
+ uint16_t secpar;
+
+ initialize_libgcrypt(false);
+
+ secpar = read_secpar(mpk + 0);
+ n = mpi_import(mpk + 2, secpar / 8);
+ x = gensquare(n, seed, seedlen, RND_GEN_X, secpar);
+
+ memcpy(state, mpk, 2 + secpar / 8);
+ mpi_export(state + 2 + 1 * secpar / 8, secpar / 8, x);
+ memzero(state + 2 + 2 * secpar / 8, 8);
+
+ gcry_mpi_release(n);
+ gcry_mpi_release(x);
+}
+
+void FSPRG_Evolve(void *state) {
+ gcry_mpi_t n, x;
+ uint16_t secpar;
+ uint64_t epoch;
+
+ initialize_libgcrypt(false);
+
+ secpar = read_secpar(state + 0);
+ n = mpi_import(state + 2 + 0 * secpar / 8, secpar / 8);
+ x = mpi_import(state + 2 + 1 * secpar / 8, secpar / 8);
+ epoch = uint64_import(state + 2 + 2 * secpar / 8, 8);
+
+ gcry_mpi_mulm(x, x, x, n);
+ epoch++;
+
+ mpi_export(state + 2 + 1 * secpar / 8, secpar / 8, x);
+ uint64_export(state + 2 + 2 * secpar / 8, 8, epoch);
+
+ gcry_mpi_release(n);
+ gcry_mpi_release(x);
+}
+
+uint64_t FSPRG_GetEpoch(const void *state) {
+ uint16_t secpar;
+ secpar = read_secpar(state + 0);
+ return uint64_import(state + 2 + 2 * secpar / 8, 8);
+}
+
+void FSPRG_Seek(void *state, uint64_t epoch, const void *msk, const void *seed, size_t seedlen) {
+ gcry_mpi_t p, q, n, x, xp, xq, kp, kq, xm;
+ uint16_t secpar;
+
+ initialize_libgcrypt(false);
+
+ secpar = read_secpar(msk + 0);
+ p = mpi_import(msk + 2 + 0 * (secpar / 2) / 8, (secpar / 2) / 8);
+ q = mpi_import(msk + 2 + 1 * (secpar / 2) / 8, (secpar / 2) / 8);
+
+ n = gcry_mpi_new(0);
+ gcry_mpi_mul(n, p, q);
+
+ x = gensquare(n, seed, seedlen, RND_GEN_X, secpar);
+ CRT_decompose(&xp, &xq, x, p, q); /* split (mod n) into (mod p) and (mod q) using CRT */
+
+ kp = twopowmodphi(epoch, p); /* compute 2^epoch (mod phi(p)) */
+ kq = twopowmodphi(epoch, q); /* compute 2^epoch (mod phi(q)) */
+
+ gcry_mpi_powm(xp, xp, kp, p); /* compute x^(2^epoch) (mod p) */
+ gcry_mpi_powm(xq, xq, kq, q); /* compute x^(2^epoch) (mod q) */
+
+ CRT_compose(&xm, xp, xq, p, q); /* combine (mod p) and (mod q) to (mod n) using CRT */
+
+ store_secpar(state + 0, secpar);
+ mpi_export(state + 2 + 0 * secpar / 8, secpar / 8, n);
+ mpi_export(state + 2 + 1 * secpar / 8, secpar / 8, xm);
+ uint64_export(state + 2 + 2 * secpar / 8, 8, epoch);
+
+ gcry_mpi_release(p);
+ gcry_mpi_release(q);
+ gcry_mpi_release(n);
+ gcry_mpi_release(x);
+ gcry_mpi_release(xp);
+ gcry_mpi_release(xq);
+ gcry_mpi_release(kp);
+ gcry_mpi_release(kq);
+ gcry_mpi_release(xm);
+}
+
+void FSPRG_GetKey(const void *state, void *key, size_t keylen, uint32_t idx) {
+ uint16_t secpar;
+
+ initialize_libgcrypt(false);
+
+ secpar = read_secpar(state + 0);
+ det_randomize(key, keylen, state + 2, 2 * secpar / 8 + 8, idx);
+}
diff --git a/src/libsystemd/src/sd-journal/fsprg.h b/src/libsystemd/src/sd-journal/fsprg.h
new file mode 100644
index 0000000000..ef6d34fb4e
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/fsprg.h
@@ -0,0 +1,65 @@
+#ifndef __fsprgh__
+#define __fsprgh__
+
+/*
+ * fsprg v0.1 - (seekable) forward-secure pseudorandom generator
+ * Copyright (C) 2012 B. Poettering
+ * Contact: fsprg@point-at-infinity.org
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include "basic/macro.h"
+#include "basic/util.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define FSPRG_RECOMMENDED_SECPAR 1536
+#define FSPRG_RECOMMENDED_SEEDLEN (96/8)
+
+size_t FSPRG_mskinbytes(unsigned secpar) _const_;
+size_t FSPRG_mpkinbytes(unsigned secpar) _const_;
+size_t FSPRG_stateinbytes(unsigned secpar) _const_;
+
+/* Setup msk and mpk. Providing seed != NULL makes this algorithm deterministic. */
+void FSPRG_GenMK(void *msk, void *mpk, const void *seed, size_t seedlen, unsigned secpar);
+
+/* Initialize state deterministically in dependence on seed. */
+/* Note: in case one wants to run only one GenState0 per GenMK it is safe to use
+ the same seed for both GenMK and GenState0.
+*/
+void FSPRG_GenState0(void *state, const void *mpk, const void *seed, size_t seedlen);
+
+void FSPRG_Evolve(void *state);
+
+uint64_t FSPRG_GetEpoch(const void *state) _pure_;
+
+/* Seek to any arbitrary state (by providing msk together with seed from GenState0). */
+void FSPRG_Seek(void *state, uint64_t epoch, const void *msk, const void *seed, size_t seedlen);
+
+void FSPRG_GetKey(const void *state, void *key, size_t keylen, uint32_t idx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/libsystemd/src/sd-journal/gcrypt-util.c b/src/libsystemd/src/sd-journal/gcrypt-util.c
new file mode 120000
index 0000000000..56bb2382a6
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/gcrypt-util.c
@@ -0,0 +1 @@
+../../../libshared/src/gcrypt-util.c \ No newline at end of file
diff --git a/src/libsystemd/src/sd-journal/gcrypt-util.h b/src/libsystemd/src/sd-journal/gcrypt-util.h
new file mode 120000
index 0000000000..c1168ad265
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/gcrypt-util.h
@@ -0,0 +1 @@
+../../../libshared/include/shared/gcrypt-util.h \ No newline at end of file
diff --git a/src/libsystemd/src/sd-journal/journal-authenticate.c b/src/libsystemd/src/sd-journal/journal-authenticate.c
new file mode 100644
index 0000000000..5400d38ffd
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-authenticate.c
@@ -0,0 +1,552 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include "basic/fd-util.h"
+#include "basic/hexdecoct.h"
+
+#include "fsprg.h"
+#include "gcrypt-util.h"
+#include "journal-authenticate.h"
+#include "journal-def.h"
+#include "journal-file.h"
+
+static uint64_t journal_file_tag_seqnum(JournalFile *f) {
+ uint64_t r;
+
+ assert(f);
+
+ r = le64toh(f->header->n_tags) + 1;
+ f->header->n_tags = htole64(r);
+
+ return r;
+}
+
+int journal_file_append_tag(JournalFile *f) {
+ Object *o;
+ uint64_t p;
+ int r;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ if (!f->hmac_running)
+ return 0;
+
+ assert(f->hmac);
+
+ r = journal_file_append_object(f, OBJECT_TAG, sizeof(struct TagObject), &o, &p);
+ if (r < 0)
+ return r;
+
+ o->tag.seqnum = htole64(journal_file_tag_seqnum(f));
+ o->tag.epoch = htole64(FSPRG_GetEpoch(f->fsprg_state));
+
+ log_debug("Writing tag %"PRIu64" for epoch %"PRIu64"",
+ le64toh(o->tag.seqnum),
+ FSPRG_GetEpoch(f->fsprg_state));
+
+ /* Add the tag object itself, so that we can protect its
+ * header. This will exclude the actual hash value in it */
+ r = journal_file_hmac_put_object(f, OBJECT_TAG, o, p);
+ if (r < 0)
+ return r;
+
+ /* Get the HMAC tag and store it in the object */
+ memcpy(o->tag.tag, gcry_md_read(f->hmac, 0), TAG_LENGTH);
+ f->hmac_running = false;
+
+ return 0;
+}
+
+int journal_file_hmac_start(JournalFile *f) {
+ uint8_t key[256 / 8]; /* Let's pass 256 bit from FSPRG to HMAC */
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ if (f->hmac_running)
+ return 0;
+
+ /* Prepare HMAC for next cycle */
+ gcry_md_reset(f->hmac);
+ FSPRG_GetKey(f->fsprg_state, key, sizeof(key), 0);
+ gcry_md_setkey(f->hmac, key, sizeof(key));
+
+ f->hmac_running = true;
+
+ return 0;
+}
+
+static int journal_file_get_epoch(JournalFile *f, uint64_t realtime, uint64_t *epoch) {
+ uint64_t t;
+
+ assert(f);
+ assert(epoch);
+ assert(f->seal);
+
+ if (f->fss_start_usec == 0 ||
+ f->fss_interval_usec == 0)
+ return -EOPNOTSUPP;
+
+ if (realtime < f->fss_start_usec)
+ return -ESTALE;
+
+ t = realtime - f->fss_start_usec;
+ t = t / f->fss_interval_usec;
+
+ *epoch = t;
+ return 0;
+}
+
+static int journal_file_fsprg_need_evolve(JournalFile *f, uint64_t realtime) {
+ uint64_t goal, epoch;
+ int r;
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ r = journal_file_get_epoch(f, realtime, &goal);
+ if (r < 0)
+ return r;
+
+ epoch = FSPRG_GetEpoch(f->fsprg_state);
+ if (epoch > goal)
+ return -ESTALE;
+
+ return epoch != goal;
+}
+
+int journal_file_fsprg_evolve(JournalFile *f, uint64_t realtime) {
+ uint64_t goal, epoch;
+ int r;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ r = journal_file_get_epoch(f, realtime, &goal);
+ if (r < 0)
+ return r;
+
+ epoch = FSPRG_GetEpoch(f->fsprg_state);
+ if (epoch < goal)
+ log_debug("Evolving FSPRG key from epoch %"PRIu64" to %"PRIu64".", epoch, goal);
+
+ for (;;) {
+ if (epoch > goal)
+ return -ESTALE;
+ if (epoch == goal)
+ return 0;
+
+ FSPRG_Evolve(f->fsprg_state);
+ epoch = FSPRG_GetEpoch(f->fsprg_state);
+ }
+}
+
+int journal_file_fsprg_seek(JournalFile *f, uint64_t goal) {
+ void *msk;
+ uint64_t epoch;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ assert(f->fsprg_seed);
+
+ if (f->fsprg_state) {
+ /* Cheaper... */
+
+ epoch = FSPRG_GetEpoch(f->fsprg_state);
+ if (goal == epoch)
+ return 0;
+
+ if (goal == epoch+1) {
+ FSPRG_Evolve(f->fsprg_state);
+ return 0;
+ }
+ } else {
+ f->fsprg_state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR);
+ f->fsprg_state = malloc(f->fsprg_state_size);
+
+ if (!f->fsprg_state)
+ return -ENOMEM;
+ }
+
+ log_debug("Seeking FSPRG key to %"PRIu64".", goal);
+
+ msk = alloca(FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR));
+ FSPRG_GenMK(msk, NULL, f->fsprg_seed, f->fsprg_seed_size, FSPRG_RECOMMENDED_SECPAR);
+ FSPRG_Seek(f->fsprg_state, goal, msk, f->fsprg_seed, f->fsprg_seed_size);
+ return 0;
+}
+
+int journal_file_maybe_append_tag(JournalFile *f, uint64_t realtime) {
+ int r;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ if (realtime <= 0)
+ realtime = now(CLOCK_REALTIME);
+
+ r = journal_file_fsprg_need_evolve(f, realtime);
+ if (r <= 0)
+ return 0;
+
+ r = journal_file_append_tag(f);
+ if (r < 0)
+ return r;
+
+ r = journal_file_fsprg_evolve(f, realtime);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int journal_file_hmac_put_object(JournalFile *f, ObjectType type, Object *o, uint64_t p) {
+ int r;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ r = journal_file_hmac_start(f);
+ if (r < 0)
+ return r;
+
+ if (!o) {
+ r = journal_file_move_to_object(f, type, p, &o);
+ if (r < 0)
+ return r;
+ } else {
+ if (type > OBJECT_UNUSED && o->object.type != type)
+ return -EBADMSG;
+ }
+
+ gcry_md_write(f->hmac, o, offsetof(ObjectHeader, payload));
+
+ switch (o->object.type) {
+
+ case OBJECT_DATA:
+ /* All but hash and payload are mutable */
+ gcry_md_write(f->hmac, &o->data.hash, sizeof(o->data.hash));
+ gcry_md_write(f->hmac, o->data.payload, le64toh(o->object.size) - offsetof(DataObject, payload));
+ break;
+
+ case OBJECT_FIELD:
+ /* Same here */
+ gcry_md_write(f->hmac, &o->field.hash, sizeof(o->field.hash));
+ gcry_md_write(f->hmac, o->field.payload, le64toh(o->object.size) - offsetof(FieldObject, payload));
+ break;
+
+ case OBJECT_ENTRY:
+ /* All */
+ gcry_md_write(f->hmac, &o->entry.seqnum, le64toh(o->object.size) - offsetof(EntryObject, seqnum));
+ break;
+
+ case OBJECT_FIELD_HASH_TABLE:
+ case OBJECT_DATA_HASH_TABLE:
+ case OBJECT_ENTRY_ARRAY:
+ /* Nothing: everything is mutable */
+ break;
+
+ case OBJECT_TAG:
+ /* All but the tag itself */
+ gcry_md_write(f->hmac, &o->tag.seqnum, sizeof(o->tag.seqnum));
+ gcry_md_write(f->hmac, &o->tag.epoch, sizeof(o->tag.epoch));
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int journal_file_hmac_put_header(JournalFile *f) {
+ int r;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ r = journal_file_hmac_start(f);
+ if (r < 0)
+ return r;
+
+ /* All but state+reserved, boot_id, arena_size,
+ * tail_object_offset, n_objects, n_entries,
+ * tail_entry_seqnum, head_entry_seqnum, entry_array_offset,
+ * head_entry_realtime, tail_entry_realtime,
+ * tail_entry_monotonic, n_data, n_fields, n_tags,
+ * n_entry_arrays. */
+
+ gcry_md_write(f->hmac, f->header->signature, offsetof(Header, state) - offsetof(Header, signature));
+ gcry_md_write(f->hmac, &f->header->file_id, offsetof(Header, boot_id) - offsetof(Header, file_id));
+ gcry_md_write(f->hmac, &f->header->seqnum_id, offsetof(Header, arena_size) - offsetof(Header, seqnum_id));
+ gcry_md_write(f->hmac, &f->header->data_hash_table_offset, offsetof(Header, tail_object_offset) - offsetof(Header, data_hash_table_offset));
+
+ return 0;
+}
+
+int journal_file_fss_load(JournalFile *f) {
+ int r, fd = -1;
+ char *p = NULL;
+ struct stat st;
+ FSSHeader *m = NULL;
+ sd_id128_t machine;
+
+ assert(f);
+
+ if (!f->seal)
+ return 0;
+
+ r = sd_id128_get_machine(&machine);
+ if (r < 0)
+ return r;
+
+ if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss",
+ SD_ID128_FORMAT_VAL(machine)) < 0)
+ return -ENOMEM;
+
+ fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY, 0600);
+ if (fd < 0) {
+ if (errno != ENOENT)
+ log_error_errno(errno, "Failed to open %s: %m", p);
+
+ r = -errno;
+ goto finish;
+ }
+
+ if (fstat(fd, &st) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (st.st_size < (off_t) sizeof(FSSHeader)) {
+ r = -ENODATA;
+ goto finish;
+ }
+
+ m = mmap(NULL, PAGE_ALIGN(sizeof(FSSHeader)), PROT_READ, MAP_SHARED, fd, 0);
+ if (m == MAP_FAILED) {
+ m = NULL;
+ r = -errno;
+ goto finish;
+ }
+
+ if (memcmp(m->signature, FSS_HEADER_SIGNATURE, 8) != 0) {
+ r = -EBADMSG;
+ goto finish;
+ }
+
+ if (m->incompatible_flags != 0) {
+ r = -EPROTONOSUPPORT;
+ goto finish;
+ }
+
+ if (le64toh(m->header_size) < sizeof(FSSHeader)) {
+ r = -EBADMSG;
+ goto finish;
+ }
+
+ if (le64toh(m->fsprg_state_size) != FSPRG_stateinbytes(le16toh(m->fsprg_secpar))) {
+ r = -EBADMSG;
+ goto finish;
+ }
+
+ f->fss_file_size = le64toh(m->header_size) + le64toh(m->fsprg_state_size);
+ if ((uint64_t) st.st_size < f->fss_file_size) {
+ r = -ENODATA;
+ goto finish;
+ }
+
+ if (!sd_id128_equal(machine, m->machine_id)) {
+ r = -EHOSTDOWN;
+ goto finish;
+ }
+
+ if (le64toh(m->start_usec) <= 0 ||
+ le64toh(m->interval_usec) <= 0) {
+ r = -EBADMSG;
+ goto finish;
+ }
+
+ f->fss_file = mmap(NULL, PAGE_ALIGN(f->fss_file_size), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if (f->fss_file == MAP_FAILED) {
+ f->fss_file = NULL;
+ r = -errno;
+ goto finish;
+ }
+
+ f->fss_start_usec = le64toh(f->fss_file->start_usec);
+ f->fss_interval_usec = le64toh(f->fss_file->interval_usec);
+
+ f->fsprg_state = (uint8_t*) f->fss_file + le64toh(f->fss_file->header_size);
+ f->fsprg_state_size = le64toh(f->fss_file->fsprg_state_size);
+
+ r = 0;
+
+finish:
+ if (m)
+ munmap(m, PAGE_ALIGN(sizeof(FSSHeader)));
+
+ safe_close(fd);
+ free(p);
+
+ return r;
+}
+
+int journal_file_hmac_setup(JournalFile *f) {
+ gcry_error_t e;
+
+ if (!f->seal)
+ return 0;
+
+ initialize_libgcrypt(true);
+
+ e = gcry_md_open(&f->hmac, GCRY_MD_SHA256, GCRY_MD_FLAG_HMAC);
+ if (e != 0)
+ return -EOPNOTSUPP;
+
+ return 0;
+}
+
+int journal_file_append_first_tag(JournalFile *f) {
+ int r;
+ uint64_t p;
+
+ if (!f->seal)
+ return 0;
+
+ log_debug("Calculating first tag...");
+
+ r = journal_file_hmac_put_header(f);
+ if (r < 0)
+ return r;
+
+ p = le64toh(f->header->field_hash_table_offset);
+ if (p < offsetof(Object, hash_table.items))
+ return -EINVAL;
+ p -= offsetof(Object, hash_table.items);
+
+ r = journal_file_hmac_put_object(f, OBJECT_FIELD_HASH_TABLE, NULL, p);
+ if (r < 0)
+ return r;
+
+ p = le64toh(f->header->data_hash_table_offset);
+ if (p < offsetof(Object, hash_table.items))
+ return -EINVAL;
+ p -= offsetof(Object, hash_table.items);
+
+ r = journal_file_hmac_put_object(f, OBJECT_DATA_HASH_TABLE, NULL, p);
+ if (r < 0)
+ return r;
+
+ r = journal_file_append_tag(f);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int journal_file_parse_verification_key(JournalFile *f, const char *key) {
+ uint8_t *seed;
+ size_t seed_size, c;
+ const char *k;
+ int r;
+ unsigned long long start, interval;
+
+ seed_size = FSPRG_RECOMMENDED_SEEDLEN;
+ seed = malloc(seed_size);
+ if (!seed)
+ return -ENOMEM;
+
+ k = key;
+ for (c = 0; c < seed_size; c++) {
+ int x, y;
+
+ while (*k == '-')
+ k++;
+
+ x = unhexchar(*k);
+ if (x < 0) {
+ free(seed);
+ return -EINVAL;
+ }
+ k++;
+ y = unhexchar(*k);
+ if (y < 0) {
+ free(seed);
+ return -EINVAL;
+ }
+ k++;
+
+ seed[c] = (uint8_t) (x * 16 + y);
+ }
+
+ if (*k != '/') {
+ free(seed);
+ return -EINVAL;
+ }
+ k++;
+
+ r = sscanf(k, "%llx-%llx", &start, &interval);
+ if (r != 2) {
+ free(seed);
+ return -EINVAL;
+ }
+
+ f->fsprg_seed = seed;
+ f->fsprg_seed_size = seed_size;
+
+ f->fss_start_usec = start * interval;
+ f->fss_interval_usec = interval;
+
+ return 0;
+}
+
+bool journal_file_next_evolve_usec(JournalFile *f, usec_t *u) {
+ uint64_t epoch;
+
+ assert(f);
+ assert(u);
+
+ if (!f->seal)
+ return false;
+
+ epoch = FSPRG_GetEpoch(f->fsprg_state);
+
+ *u = (usec_t) (f->fss_start_usec + f->fss_interval_usec * epoch + f->fss_interval_usec);
+
+ return true;
+}
diff --git a/src/libsystemd/src/sd-journal/journal-authenticate.h b/src/libsystemd/src/sd-journal/journal-authenticate.h
new file mode 100644
index 0000000000..6c87319ede
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-authenticate.h
@@ -0,0 +1,41 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+
+#include "journal-file.h"
+
+int journal_file_append_tag(JournalFile *f);
+int journal_file_maybe_append_tag(JournalFile *f, uint64_t realtime);
+int journal_file_append_first_tag(JournalFile *f);
+
+int journal_file_hmac_setup(JournalFile *f);
+int journal_file_hmac_start(JournalFile *f);
+int journal_file_hmac_put_header(JournalFile *f);
+int journal_file_hmac_put_object(JournalFile *f, ObjectType type, Object *o, uint64_t p);
+
+int journal_file_fss_load(JournalFile *f);
+int journal_file_parse_verification_key(JournalFile *f, const char *key);
+
+int journal_file_fsprg_evolve(JournalFile *f, uint64_t realtime);
+int journal_file_fsprg_seek(JournalFile *f, uint64_t epoch);
+
+bool journal_file_next_evolve_usec(JournalFile *f, usec_t *u);
diff --git a/src/libsystemd/src/sd-journal/journal-def.h b/src/libsystemd/src/sd-journal/journal-def.h
new file mode 100644
index 0000000000..7e456fcc66
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-def.h
@@ -0,0 +1,233 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <systemd/sd-id128.h>
+
+#include "basic/macro.h"
+#include "basic/sparse-endian.h"
+
+/*
+ * If you change this file you probably should also change its documentation:
+ *
+ * http://www.freedesktop.org/wiki/Software/systemd/journal-files
+ *
+ */
+
+typedef struct Header Header;
+typedef struct ObjectHeader ObjectHeader;
+typedef union Object Object;
+typedef struct DataObject DataObject;
+typedef struct FieldObject FieldObject;
+typedef struct EntryObject EntryObject;
+typedef struct HashTableObject HashTableObject;
+typedef struct EntryArrayObject EntryArrayObject;
+typedef struct TagObject TagObject;
+typedef struct EntryItem EntryItem;
+typedef struct HashItem HashItem;
+typedef struct FSSHeader FSSHeader;
+
+/* Object types */
+typedef enum ObjectType {
+ OBJECT_UNUSED, /* also serves as "any type" or "additional context" */
+ OBJECT_DATA,
+ OBJECT_FIELD,
+ OBJECT_ENTRY,
+ OBJECT_DATA_HASH_TABLE,
+ OBJECT_FIELD_HASH_TABLE,
+ OBJECT_ENTRY_ARRAY,
+ OBJECT_TAG,
+ _OBJECT_TYPE_MAX
+} ObjectType;
+
+/* Object flags */
+enum {
+ OBJECT_COMPRESSED_XZ = 1 << 0,
+ OBJECT_COMPRESSED_LZ4 = 1 << 1,
+ _OBJECT_COMPRESSED_MAX
+};
+
+#define OBJECT_COMPRESSION_MASK (OBJECT_COMPRESSED_XZ | OBJECT_COMPRESSED_LZ4)
+
+struct ObjectHeader {
+ uint8_t type;
+ uint8_t flags;
+ uint8_t reserved[6];
+ le64_t size;
+ uint8_t payload[];
+} _packed_;
+
+struct DataObject {
+ ObjectHeader object;
+ le64_t hash;
+ le64_t next_hash_offset;
+ le64_t next_field_offset;
+ le64_t entry_offset; /* the first array entry we store inline */
+ le64_t entry_array_offset;
+ le64_t n_entries;
+ uint8_t payload[];
+} _packed_;
+
+struct FieldObject {
+ ObjectHeader object;
+ le64_t hash;
+ le64_t next_hash_offset;
+ le64_t head_data_offset;
+ uint8_t payload[];
+} _packed_;
+
+struct EntryItem {
+ le64_t object_offset;
+ le64_t hash;
+} _packed_;
+
+struct EntryObject {
+ ObjectHeader object;
+ le64_t seqnum;
+ le64_t realtime;
+ le64_t monotonic;
+ sd_id128_t boot_id;
+ le64_t xor_hash;
+ EntryItem items[];
+} _packed_;
+
+struct HashItem {
+ le64_t head_hash_offset;
+ le64_t tail_hash_offset;
+} _packed_;
+
+struct HashTableObject {
+ ObjectHeader object;
+ HashItem items[];
+} _packed_;
+
+struct EntryArrayObject {
+ ObjectHeader object;
+ le64_t next_entry_array_offset;
+ le64_t items[];
+} _packed_;
+
+#define TAG_LENGTH (256/8)
+
+struct TagObject {
+ ObjectHeader object;
+ le64_t seqnum;
+ le64_t epoch;
+ uint8_t tag[TAG_LENGTH]; /* SHA-256 HMAC */
+} _packed_;
+
+union Object {
+ ObjectHeader object;
+ DataObject data;
+ FieldObject field;
+ EntryObject entry;
+ HashTableObject hash_table;
+ EntryArrayObject entry_array;
+ TagObject tag;
+};
+
+enum {
+ STATE_OFFLINE = 0,
+ STATE_ONLINE = 1,
+ STATE_ARCHIVED = 2,
+ _STATE_MAX
+};
+
+/* Header flags */
+enum {
+ HEADER_INCOMPATIBLE_COMPRESSED_XZ = 1 << 0,
+ HEADER_INCOMPATIBLE_COMPRESSED_LZ4 = 1 << 1,
+};
+
+#define HEADER_INCOMPATIBLE_ANY (HEADER_INCOMPATIBLE_COMPRESSED_XZ|HEADER_INCOMPATIBLE_COMPRESSED_LZ4)
+
+#if defined(HAVE_XZ) && defined(HAVE_LZ4)
+# define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_ANY
+#elif defined(HAVE_XZ)
+# define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_COMPRESSED_XZ
+#elif defined(HAVE_LZ4)
+# define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_COMPRESSED_LZ4
+#else
+# define HEADER_INCOMPATIBLE_SUPPORTED 0
+#endif
+
+enum {
+ HEADER_COMPATIBLE_SEALED = 1
+};
+
+#define HEADER_COMPATIBLE_ANY HEADER_COMPATIBLE_SEALED
+#ifdef HAVE_GCRYPT
+# define HEADER_COMPATIBLE_SUPPORTED HEADER_COMPATIBLE_SEALED
+#else
+# define HEADER_COMPATIBLE_SUPPORTED 0
+#endif
+
+#define HEADER_SIGNATURE ((char[]) { 'L', 'P', 'K', 'S', 'H', 'H', 'R', 'H' })
+
+struct Header {
+ uint8_t signature[8]; /* "LPKSHHRH" */
+ le32_t compatible_flags;
+ le32_t incompatible_flags;
+ uint8_t state;
+ uint8_t reserved[7];
+ sd_id128_t file_id;
+ sd_id128_t machine_id;
+ sd_id128_t boot_id; /* last writer */
+ sd_id128_t seqnum_id;
+ le64_t header_size;
+ le64_t arena_size;
+ le64_t data_hash_table_offset;
+ le64_t data_hash_table_size;
+ le64_t field_hash_table_offset;
+ le64_t field_hash_table_size;
+ le64_t tail_object_offset;
+ le64_t n_objects;
+ le64_t n_entries;
+ le64_t tail_entry_seqnum;
+ le64_t head_entry_seqnum;
+ le64_t entry_array_offset;
+ le64_t head_entry_realtime;
+ le64_t tail_entry_realtime;
+ le64_t tail_entry_monotonic;
+ /* Added in 187 */
+ le64_t n_data;
+ le64_t n_fields;
+ /* Added in 189 */
+ le64_t n_tags;
+ le64_t n_entry_arrays;
+
+ /* Size: 240 */
+} _packed_;
+
+#define FSS_HEADER_SIGNATURE ((char[]) { 'K', 'S', 'H', 'H', 'R', 'H', 'L', 'P' })
+
+struct FSSHeader {
+ uint8_t signature[8]; /* "KSHHRHLP" */
+ le32_t compatible_flags;
+ le32_t incompatible_flags;
+ sd_id128_t machine_id;
+ sd_id128_t boot_id; /* last writer */
+ le64_t header_size;
+ le64_t start_usec;
+ le64_t interval_usec;
+ le16_t fsprg_secpar;
+ le16_t reserved[3];
+ le64_t fsprg_state_size;
+} _packed_;
diff --git a/src/libsystemd/src/sd-journal/journal-file.c b/src/libsystemd/src/sd-journal/journal-file.c
new file mode 100644
index 0000000000..d8f4671617
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-file.c
@@ -0,0 +1,3619 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stddef.h>
+#include <sys/mman.h>
+#include <sys/statvfs.h>
+#include <sys/uio.h>
+#include <unistd.h>
+
+#include <linux/fs.h>
+
+#include <systemd/sd-event.h>
+
+#include "basic/alloc-util.h"
+#include "basic/btrfs-util.h"
+#include "basic/chattr-util.h"
+#include "basic/fd-util.h"
+#include "basic/parse-util.h"
+#include "basic/path-util.h"
+#include "basic/random-util.h"
+#include "basic/set.h"
+#include "basic/string-util.h"
+#include "basic/xattr-util.h"
+
+#include "compress.h"
+#include "journal-authenticate.h"
+#include "journal-def.h"
+#include "journal-file.h"
+#include "lookup3.h"
+
+#define DEFAULT_DATA_HASH_TABLE_SIZE (2047ULL*sizeof(HashItem))
+#define DEFAULT_FIELD_HASH_TABLE_SIZE (333ULL*sizeof(HashItem))
+
+#define COMPRESSION_SIZE_THRESHOLD (512ULL)
+
+/* This is the minimum journal file size */
+#define JOURNAL_FILE_SIZE_MIN (512ULL*1024ULL) /* 512 KiB */
+
+/* These are the lower and upper bounds if we deduce the max_use value
+ * from the file system size */
+#define DEFAULT_MAX_USE_LOWER (1ULL*1024ULL*1024ULL) /* 1 MiB */
+#define DEFAULT_MAX_USE_UPPER (4ULL*1024ULL*1024ULL*1024ULL) /* 4 GiB */
+
+/* This is the default minimal use limit, how much we'll use even if keep_free suggests otherwise. */
+#define DEFAULT_MIN_USE (1ULL*1024ULL*1024ULL) /* 1 MiB */
+
+/* This is the upper bound if we deduce max_size from max_use */
+#define DEFAULT_MAX_SIZE_UPPER (128ULL*1024ULL*1024ULL) /* 128 MiB */
+
+/* This is the upper bound if we deduce the keep_free value from the
+ * file system size */
+#define DEFAULT_KEEP_FREE_UPPER (4ULL*1024ULL*1024ULL*1024ULL) /* 4 GiB */
+
+/* This is the keep_free value when we can't determine the system
+ * size */
+#define DEFAULT_KEEP_FREE (1024ULL*1024ULL) /* 1 MB */
+
+/* This is the default maximum number of journal files to keep around. */
+#define DEFAULT_N_MAX_FILES (100)
+
+/* n_data was the first entry we added after the initial file format design */
+#define HEADER_SIZE_MIN ALIGN64(offsetof(Header, n_data))
+
+/* How many entries to keep in the entry array chain cache at max */
+#define CHAIN_CACHE_MAX 20
+
+/* How much to increase the journal file size at once each time we allocate something new. */
+#define FILE_SIZE_INCREASE (8ULL*1024ULL*1024ULL) /* 8MB */
+
+/* Reread fstat() of the file for detecting deletions at least this often */
+#define LAST_STAT_REFRESH_USEC (5*USEC_PER_SEC)
+
+/* The mmap context to use for the header we pick as one above the last defined typed */
+#define CONTEXT_HEADER _OBJECT_TYPE_MAX
+
+/* This may be called from a separate thread to prevent blocking the caller for the duration of fsync().
+ * As a result we use atomic operations on f->offline_state for inter-thread communications with
+ * journal_file_set_offline() and journal_file_set_online(). */
+static void journal_file_set_offline_internal(JournalFile *f) {
+ assert(f);
+ assert(f->fd >= 0);
+ assert(f->header);
+
+ for (;;) {
+ switch (f->offline_state) {
+ case OFFLINE_CANCEL:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_CANCEL, OFFLINE_DONE))
+ continue;
+ return;
+
+ case OFFLINE_AGAIN_FROM_SYNCING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_AGAIN_FROM_SYNCING, OFFLINE_SYNCING))
+ continue;
+ break;
+
+ case OFFLINE_AGAIN_FROM_OFFLINING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_AGAIN_FROM_OFFLINING, OFFLINE_SYNCING))
+ continue;
+ break;
+
+ case OFFLINE_SYNCING:
+ (void) fsync(f->fd);
+
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_SYNCING, OFFLINE_OFFLINING))
+ continue;
+
+ f->header->state = f->archive ? STATE_ARCHIVED : STATE_OFFLINE;
+ (void) fsync(f->fd);
+ break;
+
+ case OFFLINE_OFFLINING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_OFFLINING, OFFLINE_DONE))
+ continue;
+ /* fall through */
+
+ case OFFLINE_DONE:
+ return;
+
+ case OFFLINE_JOINED:
+ log_debug("OFFLINE_JOINED unexpected offline state for journal_file_set_offline_internal()");
+ return;
+ }
+ }
+}
+
+static void * journal_file_set_offline_thread(void *arg) {
+ JournalFile *f = arg;
+
+ journal_file_set_offline_internal(f);
+
+ return NULL;
+}
+
+static int journal_file_set_offline_thread_join(JournalFile *f) {
+ int r;
+
+ assert(f);
+
+ if (f->offline_state == OFFLINE_JOINED)
+ return 0;
+
+ r = pthread_join(f->offline_thread, NULL);
+ if (r)
+ return -r;
+
+ f->offline_state = OFFLINE_JOINED;
+
+ if (mmap_cache_got_sigbus(f->mmap, f->fd))
+ return -EIO;
+
+ return 0;
+}
+
+/* Trigger a restart if the offline thread is mid-flight in a restartable state. */
+static bool journal_file_set_offline_try_restart(JournalFile *f) {
+ for (;;) {
+ switch (f->offline_state) {
+ case OFFLINE_AGAIN_FROM_SYNCING:
+ case OFFLINE_AGAIN_FROM_OFFLINING:
+ return true;
+
+ case OFFLINE_CANCEL:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_CANCEL, OFFLINE_AGAIN_FROM_SYNCING))
+ continue;
+ return true;
+
+ case OFFLINE_SYNCING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_SYNCING, OFFLINE_AGAIN_FROM_SYNCING))
+ continue;
+ return true;
+
+ case OFFLINE_OFFLINING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_OFFLINING, OFFLINE_AGAIN_FROM_OFFLINING))
+ continue;
+ return true;
+
+ default:
+ return false;
+ }
+ }
+}
+
+/* Sets a journal offline.
+ *
+ * If wait is false then an offline is dispatched in a separate thread for a
+ * subsequent journal_file_set_offline() or journal_file_set_online() of the
+ * same journal to synchronize with.
+ *
+ * If wait is true, then either an existing offline thread will be restarted
+ * and joined, or if none exists the offline is simply performed in this
+ * context without involving another thread.
+ */
+int journal_file_set_offline(JournalFile *f, bool wait) {
+ bool restarted;
+ int r;
+
+ assert(f);
+
+ if (!f->writable)
+ return -EPERM;
+
+ if (!(f->fd >= 0 && f->header))
+ return -EINVAL;
+
+ /* An offlining journal is implicitly online and may modify f->header->state,
+ * we must also join any potentially lingering offline thread when not online. */
+ if (!journal_file_is_offlining(f) && f->header->state != STATE_ONLINE)
+ return journal_file_set_offline_thread_join(f);
+
+ /* Restart an in-flight offline thread and wait if needed, or join a lingering done one. */
+ restarted = journal_file_set_offline_try_restart(f);
+ if ((restarted && wait) || !restarted) {
+ r = journal_file_set_offline_thread_join(f);
+ if (r < 0)
+ return r;
+ }
+
+ if (restarted)
+ return 0;
+
+ /* Initiate a new offline. */
+ f->offline_state = OFFLINE_SYNCING;
+
+ if (wait) /* Without using a thread if waiting. */
+ journal_file_set_offline_internal(f);
+ else {
+ r = pthread_create(&f->offline_thread, NULL, journal_file_set_offline_thread, f);
+ if (r > 0) {
+ f->offline_state = OFFLINE_JOINED;
+ return -r;
+ }
+ }
+
+ return 0;
+}
+
+static int journal_file_set_online(JournalFile *f) {
+ bool joined = false;
+
+ assert(f);
+
+ if (!f->writable)
+ return -EPERM;
+
+ if (!(f->fd >= 0 && f->header))
+ return -EINVAL;
+
+ while (!joined) {
+ switch (f->offline_state) {
+ case OFFLINE_JOINED:
+ /* No offline thread, no need to wait. */
+ joined = true;
+ break;
+
+ case OFFLINE_SYNCING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_SYNCING, OFFLINE_CANCEL))
+ continue;
+ /* Canceled syncing prior to offlining, no need to wait. */
+ break;
+
+ case OFFLINE_AGAIN_FROM_SYNCING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_AGAIN_FROM_SYNCING, OFFLINE_CANCEL))
+ continue;
+ /* Canceled restart from syncing, no need to wait. */
+ break;
+
+ case OFFLINE_AGAIN_FROM_OFFLINING:
+ if (!__sync_bool_compare_and_swap(&f->offline_state, OFFLINE_AGAIN_FROM_OFFLINING, OFFLINE_CANCEL))
+ continue;
+ /* Canceled restart from offlining, must wait for offlining to complete however. */
+
+ /* fall through to wait */
+ default: {
+ int r;
+
+ r = journal_file_set_offline_thread_join(f);
+ if (r < 0)
+ return r;
+
+ joined = true;
+ break;
+ }
+ }
+ }
+
+ if (mmap_cache_got_sigbus(f->mmap, f->fd))
+ return -EIO;
+
+ switch (f->header->state) {
+ case STATE_ONLINE:
+ return 0;
+
+ case STATE_OFFLINE:
+ f->header->state = STATE_ONLINE;
+ (void) fsync(f->fd);
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+bool journal_file_is_offlining(JournalFile *f) {
+ assert(f);
+
+ __sync_synchronize();
+
+ if (f->offline_state == OFFLINE_DONE ||
+ f->offline_state == OFFLINE_JOINED)
+ return false;
+
+ return true;
+}
+
+JournalFile* journal_file_close(JournalFile *f) {
+ assert(f);
+
+#ifdef HAVE_GCRYPT
+ /* Write the final tag */
+ if (f->seal && f->writable)
+ journal_file_append_tag(f);
+#endif
+
+ if (f->post_change_timer) {
+ int enabled;
+
+ if (sd_event_source_get_enabled(f->post_change_timer, &enabled) >= 0)
+ if (enabled == SD_EVENT_ONESHOT)
+ journal_file_post_change(f);
+
+ (void) sd_event_source_set_enabled(f->post_change_timer, SD_EVENT_OFF);
+ sd_event_source_unref(f->post_change_timer);
+ }
+
+ journal_file_set_offline(f, true);
+
+ if (f->mmap && f->fd >= 0)
+ mmap_cache_close_fd(f->mmap, f->fd);
+
+ if (f->fd >= 0 && f->defrag_on_close) {
+
+ /* Be friendly to btrfs: turn COW back on again now,
+ * and defragment the file. We won't write to the file
+ * ever again, hence remove all fragmentation, and
+ * reenable all the good bits COW usually provides
+ * (such as data checksumming). */
+
+ (void) chattr_fd(f->fd, 0, FS_NOCOW_FL);
+ (void) btrfs_defrag_fd(f->fd);
+ }
+
+ if (f->close_fd)
+ safe_close(f->fd);
+ free(f->path);
+
+ mmap_cache_unref(f->mmap);
+
+ ordered_hashmap_free_free(f->chain_cache);
+
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ free(f->compress_buffer);
+#endif
+
+#ifdef HAVE_GCRYPT
+ if (f->fss_file)
+ munmap(f->fss_file, PAGE_ALIGN(f->fss_file_size));
+ else
+ free(f->fsprg_state);
+
+ free(f->fsprg_seed);
+
+ if (f->hmac)
+ gcry_md_close(f->hmac);
+#endif
+
+ free(f);
+ return NULL;
+}
+
+void journal_file_close_set(Set *s) {
+ JournalFile *f;
+
+ assert(s);
+
+ while ((f = set_steal_first(s)))
+ (void) journal_file_close(f);
+}
+
+static int journal_file_init_header(JournalFile *f, JournalFile *template) {
+ Header h = {};
+ ssize_t k;
+ int r;
+
+ assert(f);
+
+ memcpy(h.signature, HEADER_SIGNATURE, 8);
+ h.header_size = htole64(ALIGN64(sizeof(h)));
+
+ h.incompatible_flags |= htole32(
+ f->compress_xz * HEADER_INCOMPATIBLE_COMPRESSED_XZ |
+ f->compress_lz4 * HEADER_INCOMPATIBLE_COMPRESSED_LZ4);
+
+ h.compatible_flags = htole32(
+ f->seal * HEADER_COMPATIBLE_SEALED);
+
+ r = sd_id128_randomize(&h.file_id);
+ if (r < 0)
+ return r;
+
+ if (template) {
+ h.seqnum_id = template->header->seqnum_id;
+ h.tail_entry_seqnum = template->header->tail_entry_seqnum;
+ } else
+ h.seqnum_id = h.file_id;
+
+ k = pwrite(f->fd, &h, sizeof(h), 0);
+ if (k < 0)
+ return -errno;
+
+ if (k != sizeof(h))
+ return -EIO;
+
+ return 0;
+}
+
+static int fsync_directory_of_file(int fd) {
+ _cleanup_free_ char *path = NULL, *dn = NULL;
+ _cleanup_close_ int dfd = -1;
+ struct stat st;
+ int r;
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+
+ if (!S_ISREG(st.st_mode))
+ return -EBADFD;
+
+ r = fd_get_path(fd, &path);
+ if (r < 0)
+ return r;
+
+ if (!path_is_absolute(path))
+ return -EINVAL;
+
+ dn = dirname_malloc(path);
+ if (!dn)
+ return -ENOMEM;
+
+ dfd = open(dn, O_RDONLY|O_CLOEXEC|O_DIRECTORY);
+ if (dfd < 0)
+ return -errno;
+
+ if (fsync(dfd) < 0)
+ return -errno;
+
+ return 0;
+}
+
+static int journal_file_refresh_header(JournalFile *f) {
+ sd_id128_t boot_id;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ r = sd_id128_get_machine(&f->header->machine_id);
+ if (r < 0)
+ return r;
+
+ r = sd_id128_get_boot(&boot_id);
+ if (r < 0)
+ return r;
+
+ if (sd_id128_equal(boot_id, f->header->boot_id))
+ f->tail_entry_monotonic_valid = true;
+
+ f->header->boot_id = boot_id;
+
+ r = journal_file_set_online(f);
+
+ /* Sync the online state to disk */
+ (void) fsync(f->fd);
+
+ /* We likely just created a new file, also sync the directory this file is located in. */
+ (void) fsync_directory_of_file(f->fd);
+
+ return r;
+}
+
+static int journal_file_verify_header(JournalFile *f) {
+ uint32_t flags;
+
+ assert(f);
+ assert(f->header);
+
+ if (memcmp(f->header->signature, HEADER_SIGNATURE, 8))
+ return -EBADMSG;
+
+ /* In both read and write mode we refuse to open files with
+ * incompatible flags we don't know */
+ flags = le32toh(f->header->incompatible_flags);
+ if (flags & ~HEADER_INCOMPATIBLE_SUPPORTED) {
+ if (flags & ~HEADER_INCOMPATIBLE_ANY)
+ log_debug("Journal file %s has unknown incompatible flags %"PRIx32,
+ f->path, flags & ~HEADER_INCOMPATIBLE_ANY);
+ flags = (flags & HEADER_INCOMPATIBLE_ANY) & ~HEADER_INCOMPATIBLE_SUPPORTED;
+ if (flags)
+ log_debug("Journal file %s uses incompatible flags %"PRIx32
+ " disabled at compilation time.", f->path, flags);
+ return -EPROTONOSUPPORT;
+ }
+
+ /* When open for writing we refuse to open files with
+ * compatible flags, too */
+ flags = le32toh(f->header->compatible_flags);
+ if (f->writable && (flags & ~HEADER_COMPATIBLE_SUPPORTED)) {
+ if (flags & ~HEADER_COMPATIBLE_ANY)
+ log_debug("Journal file %s has unknown compatible flags %"PRIx32,
+ f->path, flags & ~HEADER_COMPATIBLE_ANY);
+ flags = (flags & HEADER_COMPATIBLE_ANY) & ~HEADER_COMPATIBLE_SUPPORTED;
+ if (flags)
+ log_debug("Journal file %s uses compatible flags %"PRIx32
+ " disabled at compilation time.", f->path, flags);
+ return -EPROTONOSUPPORT;
+ }
+
+ if (f->header->state >= _STATE_MAX)
+ return -EBADMSG;
+
+ /* The first addition was n_data, so check that we are at least this large */
+ if (le64toh(f->header->header_size) < HEADER_SIZE_MIN)
+ return -EBADMSG;
+
+ if (JOURNAL_HEADER_SEALED(f->header) && !JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays))
+ return -EBADMSG;
+
+ if ((le64toh(f->header->header_size) + le64toh(f->header->arena_size)) > (uint64_t) f->last_stat.st_size)
+ return -ENODATA;
+
+ if (le64toh(f->header->tail_object_offset) > (le64toh(f->header->header_size) + le64toh(f->header->arena_size)))
+ return -ENODATA;
+
+ if (!VALID64(le64toh(f->header->data_hash_table_offset)) ||
+ !VALID64(le64toh(f->header->field_hash_table_offset)) ||
+ !VALID64(le64toh(f->header->tail_object_offset)) ||
+ !VALID64(le64toh(f->header->entry_array_offset)))
+ return -ENODATA;
+
+ if (f->writable) {
+ uint8_t state;
+ sd_id128_t machine_id;
+ int r;
+
+ r = sd_id128_get_machine(&machine_id);
+ if (r < 0)
+ return r;
+
+ if (!sd_id128_equal(machine_id, f->header->machine_id))
+ return -EHOSTDOWN;
+
+ state = f->header->state;
+
+ if (state == STATE_ONLINE) {
+ log_debug("Journal file %s is already online. Assuming unclean closing.", f->path);
+ return -EBUSY;
+ } else if (state == STATE_ARCHIVED)
+ return -ESHUTDOWN;
+ else if (state != STATE_OFFLINE) {
+ log_debug("Journal file %s has unknown state %i.", f->path, state);
+ return -EBUSY;
+ }
+ }
+
+ f->compress_xz = JOURNAL_HEADER_COMPRESSED_XZ(f->header);
+ f->compress_lz4 = JOURNAL_HEADER_COMPRESSED_LZ4(f->header);
+
+ f->seal = JOURNAL_HEADER_SEALED(f->header);
+
+ return 0;
+}
+
+static int journal_file_fstat(JournalFile *f) {
+ assert(f);
+ assert(f->fd >= 0);
+
+ if (fstat(f->fd, &f->last_stat) < 0)
+ return -errno;
+
+ f->last_stat_usec = now(CLOCK_MONOTONIC);
+
+ /* Refuse appending to files that are already deleted */
+ if (f->last_stat.st_nlink <= 0)
+ return -EIDRM;
+
+ return 0;
+}
+
+static int journal_file_allocate(JournalFile *f, uint64_t offset, uint64_t size) {
+ uint64_t old_size, new_size;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ /* We assume that this file is not sparse, and we know that
+ * for sure, since we always call posix_fallocate()
+ * ourselves */
+
+ if (mmap_cache_got_sigbus(f->mmap, f->fd))
+ return -EIO;
+
+ old_size =
+ le64toh(f->header->header_size) +
+ le64toh(f->header->arena_size);
+
+ new_size = PAGE_ALIGN(offset + size);
+ if (new_size < le64toh(f->header->header_size))
+ new_size = le64toh(f->header->header_size);
+
+ if (new_size <= old_size) {
+
+ /* We already pre-allocated enough space, but before
+ * we write to it, let's check with fstat() if the
+ * file got deleted, in order make sure we don't throw
+ * away the data immediately. Don't check fstat() for
+ * all writes though, but only once ever 10s. */
+
+ if (f->last_stat_usec + LAST_STAT_REFRESH_USEC > now(CLOCK_MONOTONIC))
+ return 0;
+
+ return journal_file_fstat(f);
+ }
+
+ /* Allocate more space. */
+
+ if (f->metrics.max_size > 0 && new_size > f->metrics.max_size)
+ return -E2BIG;
+
+ if (new_size > f->metrics.min_size && f->metrics.keep_free > 0) {
+ struct statvfs svfs;
+
+ if (fstatvfs(f->fd, &svfs) >= 0) {
+ uint64_t available;
+
+ available = LESS_BY((uint64_t) svfs.f_bfree * (uint64_t) svfs.f_bsize, f->metrics.keep_free);
+
+ if (new_size - old_size > available)
+ return -E2BIG;
+ }
+ }
+
+ /* Increase by larger blocks at once */
+ new_size = ((new_size+FILE_SIZE_INCREASE-1) / FILE_SIZE_INCREASE) * FILE_SIZE_INCREASE;
+ if (f->metrics.max_size > 0 && new_size > f->metrics.max_size)
+ new_size = f->metrics.max_size;
+
+ /* Note that the glibc fallocate() fallback is very
+ inefficient, hence we try to minimize the allocation area
+ as we can. */
+ r = posix_fallocate(f->fd, old_size, new_size - old_size);
+ if (r != 0)
+ return -r;
+
+ f->header->arena_size = htole64(new_size - le64toh(f->header->header_size));
+
+ return journal_file_fstat(f);
+}
+
+static unsigned type_to_context(ObjectType type) {
+ /* One context for each type, plus one catch-all for the rest */
+ assert_cc(_OBJECT_TYPE_MAX <= MMAP_CACHE_MAX_CONTEXTS);
+ assert_cc(CONTEXT_HEADER < MMAP_CACHE_MAX_CONTEXTS);
+ return type > OBJECT_UNUSED && type < _OBJECT_TYPE_MAX ? type : 0;
+}
+
+static int journal_file_move_to(JournalFile *f, ObjectType type, bool keep_always, uint64_t offset, uint64_t size, void **ret) {
+ int r;
+
+ assert(f);
+ assert(ret);
+
+ if (size <= 0)
+ return -EINVAL;
+
+ /* Avoid SIGBUS on invalid accesses */
+ if (offset + size > (uint64_t) f->last_stat.st_size) {
+ /* Hmm, out of range? Let's refresh the fstat() data
+ * first, before we trust that check. */
+
+ r = journal_file_fstat(f);
+ if (r < 0)
+ return r;
+
+ if (offset + size > (uint64_t) f->last_stat.st_size)
+ return -EADDRNOTAVAIL;
+ }
+
+ return mmap_cache_get(f->mmap, f->fd, f->prot, type_to_context(type), keep_always, offset, size, &f->last_stat, ret);
+}
+
+static uint64_t minimum_header_size(Object *o) {
+
+ static const uint64_t table[] = {
+ [OBJECT_DATA] = sizeof(DataObject),
+ [OBJECT_FIELD] = sizeof(FieldObject),
+ [OBJECT_ENTRY] = sizeof(EntryObject),
+ [OBJECT_DATA_HASH_TABLE] = sizeof(HashTableObject),
+ [OBJECT_FIELD_HASH_TABLE] = sizeof(HashTableObject),
+ [OBJECT_ENTRY_ARRAY] = sizeof(EntryArrayObject),
+ [OBJECT_TAG] = sizeof(TagObject),
+ };
+
+ if (o->object.type >= ELEMENTSOF(table) || table[o->object.type] <= 0)
+ return sizeof(ObjectHeader);
+
+ return table[o->object.type];
+}
+
+int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset, Object **ret) {
+ int r;
+ void *t;
+ Object *o;
+ uint64_t s;
+
+ assert(f);
+ assert(ret);
+
+ /* Objects may only be located at multiple of 64 bit */
+ if (!VALID64(offset))
+ return -EBADMSG;
+
+ /* Object may not be located in the file header */
+ if (offset < le64toh(f->header->header_size))
+ return -EBADMSG;
+
+ r = journal_file_move_to(f, type, false, offset, sizeof(ObjectHeader), &t);
+ if (r < 0)
+ return r;
+
+ o = (Object*) t;
+ s = le64toh(o->object.size);
+
+ if (s < sizeof(ObjectHeader))
+ return -EBADMSG;
+
+ if (o->object.type <= OBJECT_UNUSED)
+ return -EBADMSG;
+
+ if (s < minimum_header_size(o))
+ return -EBADMSG;
+
+ if (type > OBJECT_UNUSED && o->object.type != type)
+ return -EBADMSG;
+
+ if (s > sizeof(ObjectHeader)) {
+ r = journal_file_move_to(f, type, false, offset, s, &t);
+ if (r < 0)
+ return r;
+
+ o = (Object*) t;
+ }
+
+ *ret = o;
+ return 0;
+}
+
+static uint64_t journal_file_entry_seqnum(JournalFile *f, uint64_t *seqnum) {
+ uint64_t r;
+
+ assert(f);
+ assert(f->header);
+
+ r = le64toh(f->header->tail_entry_seqnum) + 1;
+
+ if (seqnum) {
+ /* If an external seqnum counter was passed, we update
+ * both the local and the external one, and set it to
+ * the maximum of both */
+
+ if (*seqnum + 1 > r)
+ r = *seqnum + 1;
+
+ *seqnum = r;
+ }
+
+ f->header->tail_entry_seqnum = htole64(r);
+
+ if (f->header->head_entry_seqnum == 0)
+ f->header->head_entry_seqnum = htole64(r);
+
+ return r;
+}
+
+int journal_file_append_object(JournalFile *f, ObjectType type, uint64_t size, Object **ret, uint64_t *offset) {
+ int r;
+ uint64_t p;
+ Object *tail, *o;
+ void *t;
+
+ assert(f);
+ assert(f->header);
+ assert(type > OBJECT_UNUSED && type < _OBJECT_TYPE_MAX);
+ assert(size >= sizeof(ObjectHeader));
+ assert(offset);
+ assert(ret);
+
+ r = journal_file_set_online(f);
+ if (r < 0)
+ return r;
+
+ p = le64toh(f->header->tail_object_offset);
+ if (p == 0)
+ p = le64toh(f->header->header_size);
+ else {
+ r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &tail);
+ if (r < 0)
+ return r;
+
+ p += ALIGN64(le64toh(tail->object.size));
+ }
+
+ r = journal_file_allocate(f, p, size);
+ if (r < 0)
+ return r;
+
+ r = journal_file_move_to(f, type, false, p, size, &t);
+ if (r < 0)
+ return r;
+
+ o = (Object*) t;
+
+ zero(o->object);
+ o->object.type = type;
+ o->object.size = htole64(size);
+
+ f->header->tail_object_offset = htole64(p);
+ f->header->n_objects = htole64(le64toh(f->header->n_objects) + 1);
+
+ *ret = o;
+ *offset = p;
+
+ return 0;
+}
+
+static int journal_file_setup_data_hash_table(JournalFile *f) {
+ uint64_t s, p;
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ /* We estimate that we need 1 hash table entry per 768 bytes
+ of journal file and we want to make sure we never get
+ beyond 75% fill level. Calculate the hash table size for
+ the maximum file size based on these metrics. */
+
+ s = (f->metrics.max_size * 4 / 768 / 3) * sizeof(HashItem);
+ if (s < DEFAULT_DATA_HASH_TABLE_SIZE)
+ s = DEFAULT_DATA_HASH_TABLE_SIZE;
+
+ log_debug("Reserving %"PRIu64" entries in hash table.", s / sizeof(HashItem));
+
+ r = journal_file_append_object(f,
+ OBJECT_DATA_HASH_TABLE,
+ offsetof(Object, hash_table.items) + s,
+ &o, &p);
+ if (r < 0)
+ return r;
+
+ memzero(o->hash_table.items, s);
+
+ f->header->data_hash_table_offset = htole64(p + offsetof(Object, hash_table.items));
+ f->header->data_hash_table_size = htole64(s);
+
+ return 0;
+}
+
+static int journal_file_setup_field_hash_table(JournalFile *f) {
+ uint64_t s, p;
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ /* We use a fixed size hash table for the fields as this
+ * number should grow very slowly only */
+
+ s = DEFAULT_FIELD_HASH_TABLE_SIZE;
+ r = journal_file_append_object(f,
+ OBJECT_FIELD_HASH_TABLE,
+ offsetof(Object, hash_table.items) + s,
+ &o, &p);
+ if (r < 0)
+ return r;
+
+ memzero(o->hash_table.items, s);
+
+ f->header->field_hash_table_offset = htole64(p + offsetof(Object, hash_table.items));
+ f->header->field_hash_table_size = htole64(s);
+
+ return 0;
+}
+
+int journal_file_map_data_hash_table(JournalFile *f) {
+ uint64_t s, p;
+ void *t;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ if (f->data_hash_table)
+ return 0;
+
+ p = le64toh(f->header->data_hash_table_offset);
+ s = le64toh(f->header->data_hash_table_size);
+
+ r = journal_file_move_to(f,
+ OBJECT_DATA_HASH_TABLE,
+ true,
+ p, s,
+ &t);
+ if (r < 0)
+ return r;
+
+ f->data_hash_table = t;
+ return 0;
+}
+
+int journal_file_map_field_hash_table(JournalFile *f) {
+ uint64_t s, p;
+ void *t;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ if (f->field_hash_table)
+ return 0;
+
+ p = le64toh(f->header->field_hash_table_offset);
+ s = le64toh(f->header->field_hash_table_size);
+
+ r = journal_file_move_to(f,
+ OBJECT_FIELD_HASH_TABLE,
+ true,
+ p, s,
+ &t);
+ if (r < 0)
+ return r;
+
+ f->field_hash_table = t;
+ return 0;
+}
+
+static int journal_file_link_field(
+ JournalFile *f,
+ Object *o,
+ uint64_t offset,
+ uint64_t hash) {
+
+ uint64_t p, h, m;
+ int r;
+
+ assert(f);
+ assert(f->header);
+ assert(f->field_hash_table);
+ assert(o);
+ assert(offset > 0);
+
+ if (o->object.type != OBJECT_FIELD)
+ return -EINVAL;
+
+ m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem);
+ if (m <= 0)
+ return -EBADMSG;
+
+ /* This might alter the window we are looking at */
+ o->field.next_hash_offset = o->field.head_data_offset = 0;
+
+ h = hash % m;
+ p = le64toh(f->field_hash_table[h].tail_hash_offset);
+ if (p == 0)
+ f->field_hash_table[h].head_hash_offset = htole64(offset);
+ else {
+ r = journal_file_move_to_object(f, OBJECT_FIELD, p, &o);
+ if (r < 0)
+ return r;
+
+ o->field.next_hash_offset = htole64(offset);
+ }
+
+ f->field_hash_table[h].tail_hash_offset = htole64(offset);
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_fields))
+ f->header->n_fields = htole64(le64toh(f->header->n_fields) + 1);
+
+ return 0;
+}
+
+static int journal_file_link_data(
+ JournalFile *f,
+ Object *o,
+ uint64_t offset,
+ uint64_t hash) {
+
+ uint64_t p, h, m;
+ int r;
+
+ assert(f);
+ assert(f->header);
+ assert(f->data_hash_table);
+ assert(o);
+ assert(offset > 0);
+
+ if (o->object.type != OBJECT_DATA)
+ return -EINVAL;
+
+ m = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
+ if (m <= 0)
+ return -EBADMSG;
+
+ /* This might alter the window we are looking at */
+ o->data.next_hash_offset = o->data.next_field_offset = 0;
+ o->data.entry_offset = o->data.entry_array_offset = 0;
+ o->data.n_entries = 0;
+
+ h = hash % m;
+ p = le64toh(f->data_hash_table[h].tail_hash_offset);
+ if (p == 0)
+ /* Only entry in the hash table is easy */
+ f->data_hash_table[h].head_hash_offset = htole64(offset);
+ else {
+ /* Move back to the previous data object, to patch in
+ * pointer */
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ o->data.next_hash_offset = htole64(offset);
+ }
+
+ f->data_hash_table[h].tail_hash_offset = htole64(offset);
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_data))
+ f->header->n_data = htole64(le64toh(f->header->n_data) + 1);
+
+ return 0;
+}
+
+int journal_file_find_field_object_with_hash(
+ JournalFile *f,
+ const void *field, uint64_t size, uint64_t hash,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t p, osize, h, m;
+ int r;
+
+ assert(f);
+ assert(f->header);
+ assert(field && size > 0);
+
+ /* If the field hash table is empty, we can't find anything */
+ if (le64toh(f->header->field_hash_table_size) <= 0)
+ return 0;
+
+ /* Map the field hash table, if it isn't mapped yet. */
+ r = journal_file_map_field_hash_table(f);
+ if (r < 0)
+ return r;
+
+ osize = offsetof(Object, field.payload) + size;
+
+ m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem);
+ if (m <= 0)
+ return -EBADMSG;
+
+ h = hash % m;
+ p = le64toh(f->field_hash_table[h].head_hash_offset);
+
+ while (p > 0) {
+ Object *o;
+
+ r = journal_file_move_to_object(f, OBJECT_FIELD, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le64toh(o->field.hash) == hash &&
+ le64toh(o->object.size) == osize &&
+ memcmp(o->field.payload, field, size) == 0) {
+
+ if (ret)
+ *ret = o;
+ if (offset)
+ *offset = p;
+
+ return 1;
+ }
+
+ p = le64toh(o->field.next_hash_offset);
+ }
+
+ return 0;
+}
+
+int journal_file_find_field_object(
+ JournalFile *f,
+ const void *field, uint64_t size,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t hash;
+
+ assert(f);
+ assert(field && size > 0);
+
+ hash = hash64(field, size);
+
+ return journal_file_find_field_object_with_hash(f,
+ field, size, hash,
+ ret, offset);
+}
+
+int journal_file_find_data_object_with_hash(
+ JournalFile *f,
+ const void *data, uint64_t size, uint64_t hash,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t p, osize, h, m;
+ int r;
+
+ assert(f);
+ assert(f->header);
+ assert(data || size == 0);
+
+ /* If there's no data hash table, then there's no entry. */
+ if (le64toh(f->header->data_hash_table_size) <= 0)
+ return 0;
+
+ /* Map the data hash table, if it isn't mapped yet. */
+ r = journal_file_map_data_hash_table(f);
+ if (r < 0)
+ return r;
+
+ osize = offsetof(Object, data.payload) + size;
+
+ m = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
+ if (m <= 0)
+ return -EBADMSG;
+
+ h = hash % m;
+ p = le64toh(f->data_hash_table[h].head_hash_offset);
+
+ while (p > 0) {
+ Object *o;
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le64toh(o->data.hash) != hash)
+ goto next;
+
+ if (o->object.flags & OBJECT_COMPRESSION_MASK) {
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ uint64_t l;
+ size_t rsize = 0;
+
+ l = le64toh(o->object.size);
+ if (l <= offsetof(Object, data.payload))
+ return -EBADMSG;
+
+ l -= offsetof(Object, data.payload);
+
+ r = decompress_blob(o->object.flags & OBJECT_COMPRESSION_MASK,
+ o->data.payload, l, &f->compress_buffer, &f->compress_buffer_size, &rsize, 0);
+ if (r < 0)
+ return r;
+
+ if (rsize == size &&
+ memcmp(f->compress_buffer, data, size) == 0) {
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 1;
+ }
+#else
+ return -EPROTONOSUPPORT;
+#endif
+ } else if (le64toh(o->object.size) == osize &&
+ memcmp(o->data.payload, data, size) == 0) {
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 1;
+ }
+
+ next:
+ p = le64toh(o->data.next_hash_offset);
+ }
+
+ return 0;
+}
+
+int journal_file_find_data_object(
+ JournalFile *f,
+ const void *data, uint64_t size,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t hash;
+
+ assert(f);
+ assert(data || size == 0);
+
+ hash = hash64(data, size);
+
+ return journal_file_find_data_object_with_hash(f,
+ data, size, hash,
+ ret, offset);
+}
+
+static int journal_file_append_field(
+ JournalFile *f,
+ const void *field, uint64_t size,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t hash, p;
+ uint64_t osize;
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(field && size > 0);
+
+ hash = hash64(field, size);
+
+ r = journal_file_find_field_object_with_hash(f, field, size, hash, &o, &p);
+ if (r < 0)
+ return r;
+ else if (r > 0) {
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 0;
+ }
+
+ osize = offsetof(Object, field.payload) + size;
+ r = journal_file_append_object(f, OBJECT_FIELD, osize, &o, &p);
+ if (r < 0)
+ return r;
+
+ o->field.hash = htole64(hash);
+ memcpy(o->field.payload, field, size);
+
+ r = journal_file_link_field(f, o, p, hash);
+ if (r < 0)
+ return r;
+
+ /* The linking might have altered the window, so let's
+ * refresh our pointer */
+ r = journal_file_move_to_object(f, OBJECT_FIELD, p, &o);
+ if (r < 0)
+ return r;
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_hmac_put_object(f, OBJECT_FIELD, o, p);
+ if (r < 0)
+ return r;
+#endif
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 0;
+}
+
+static int journal_file_append_data(
+ JournalFile *f,
+ const void *data, uint64_t size,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t hash, p;
+ uint64_t osize;
+ Object *o;
+ int r, compression = 0;
+ const void *eq;
+
+ assert(f);
+ assert(data || size == 0);
+
+ hash = hash64(data, size);
+
+ r = journal_file_find_data_object_with_hash(f, data, size, hash, &o, &p);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 0;
+ }
+
+ osize = offsetof(Object, data.payload) + size;
+ r = journal_file_append_object(f, OBJECT_DATA, osize, &o, &p);
+ if (r < 0)
+ return r;
+
+ o->data.hash = htole64(hash);
+
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ if (JOURNAL_FILE_COMPRESS(f) && size >= COMPRESSION_SIZE_THRESHOLD) {
+ size_t rsize = 0;
+
+ compression = compress_blob(data, size, o->data.payload, size - 1, &rsize);
+
+ if (compression >= 0) {
+ o->object.size = htole64(offsetof(Object, data.payload) + rsize);
+ o->object.flags |= compression;
+
+ log_debug("Compressed data object %"PRIu64" -> %zu using %s",
+ size, rsize, object_compressed_to_string(compression));
+ } else
+ /* Compression didn't work, we don't really care why, let's continue without compression */
+ compression = 0;
+ }
+#endif
+
+ if (compression == 0)
+ memcpy_safe(o->data.payload, data, size);
+
+ r = journal_file_link_data(f, o, p, hash);
+ if (r < 0)
+ return r;
+
+ /* The linking might have altered the window, so let's
+ * refresh our pointer */
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ if (!data)
+ eq = NULL;
+ else
+ eq = memchr(data, '=', size);
+ if (eq && eq > data) {
+ Object *fo = NULL;
+ uint64_t fp;
+
+ /* Create field object ... */
+ r = journal_file_append_field(f, data, (uint8_t*) eq - (uint8_t*) data, &fo, &fp);
+ if (r < 0)
+ return r;
+
+ /* ... and link it in. */
+ o->data.next_field_offset = fo->field.head_data_offset;
+ fo->field.head_data_offset = le64toh(p);
+ }
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_hmac_put_object(f, OBJECT_DATA, o, p);
+ if (r < 0)
+ return r;
+#endif
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 0;
+}
+
+uint64_t journal_file_entry_n_items(Object *o) {
+ assert(o);
+
+ if (o->object.type != OBJECT_ENTRY)
+ return 0;
+
+ return (le64toh(o->object.size) - offsetof(Object, entry.items)) / sizeof(EntryItem);
+}
+
+uint64_t journal_file_entry_array_n_items(Object *o) {
+ assert(o);
+
+ if (o->object.type != OBJECT_ENTRY_ARRAY)
+ return 0;
+
+ return (le64toh(o->object.size) - offsetof(Object, entry_array.items)) / sizeof(uint64_t);
+}
+
+uint64_t journal_file_hash_table_n_items(Object *o) {
+ assert(o);
+
+ if (o->object.type != OBJECT_DATA_HASH_TABLE &&
+ o->object.type != OBJECT_FIELD_HASH_TABLE)
+ return 0;
+
+ return (le64toh(o->object.size) - offsetof(Object, hash_table.items)) / sizeof(HashItem);
+}
+
+static int link_entry_into_array(JournalFile *f,
+ le64_t *first,
+ le64_t *idx,
+ uint64_t p) {
+ int r;
+ uint64_t n = 0, ap = 0, q, i, a, hidx;
+ Object *o;
+
+ assert(f);
+ assert(f->header);
+ assert(first);
+ assert(idx);
+ assert(p > 0);
+
+ a = le64toh(*first);
+ i = hidx = le64toh(*idx);
+ while (a > 0) {
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+
+ n = journal_file_entry_array_n_items(o);
+ if (i < n) {
+ o->entry_array.items[i] = htole64(p);
+ *idx = htole64(hidx + 1);
+ return 0;
+ }
+
+ i -= n;
+ ap = a;
+ a = le64toh(o->entry_array.next_entry_array_offset);
+ }
+
+ if (hidx > n)
+ n = (hidx+1) * 2;
+ else
+ n = n * 2;
+
+ if (n < 4)
+ n = 4;
+
+ r = journal_file_append_object(f, OBJECT_ENTRY_ARRAY,
+ offsetof(Object, entry_array.items) + n * sizeof(uint64_t),
+ &o, &q);
+ if (r < 0)
+ return r;
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_hmac_put_object(f, OBJECT_ENTRY_ARRAY, o, q);
+ if (r < 0)
+ return r;
+#endif
+
+ o->entry_array.items[i] = htole64(p);
+
+ if (ap == 0)
+ *first = htole64(q);
+ else {
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, ap, &o);
+ if (r < 0)
+ return r;
+
+ o->entry_array.next_entry_array_offset = htole64(q);
+ }
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays))
+ f->header->n_entry_arrays = htole64(le64toh(f->header->n_entry_arrays) + 1);
+
+ *idx = htole64(hidx + 1);
+
+ return 0;
+}
+
+static int link_entry_into_array_plus_one(JournalFile *f,
+ le64_t *extra,
+ le64_t *first,
+ le64_t *idx,
+ uint64_t p) {
+
+ int r;
+
+ assert(f);
+ assert(extra);
+ assert(first);
+ assert(idx);
+ assert(p > 0);
+
+ if (*idx == 0)
+ *extra = htole64(p);
+ else {
+ le64_t i;
+
+ i = htole64(le64toh(*idx) - 1);
+ r = link_entry_into_array(f, first, &i, p);
+ if (r < 0)
+ return r;
+ }
+
+ *idx = htole64(le64toh(*idx) + 1);
+ return 0;
+}
+
+static int journal_file_link_entry_item(JournalFile *f, Object *o, uint64_t offset, uint64_t i) {
+ uint64_t p;
+ int r;
+ assert(f);
+ assert(o);
+ assert(offset > 0);
+
+ p = le64toh(o->entry.items[i].object_offset);
+ if (p == 0)
+ return -EINVAL;
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ return link_entry_into_array_plus_one(f,
+ &o->data.entry_offset,
+ &o->data.entry_array_offset,
+ &o->data.n_entries,
+ offset);
+}
+
+static int journal_file_link_entry(JournalFile *f, Object *o, uint64_t offset) {
+ uint64_t n, i;
+ int r;
+
+ assert(f);
+ assert(f->header);
+ assert(o);
+ assert(offset > 0);
+
+ if (o->object.type != OBJECT_ENTRY)
+ return -EINVAL;
+
+ __sync_synchronize();
+
+ /* Link up the entry itself */
+ r = link_entry_into_array(f,
+ &f->header->entry_array_offset,
+ &f->header->n_entries,
+ offset);
+ if (r < 0)
+ return r;
+
+ /* log_debug("=> %s seqnr=%"PRIu64" n_entries=%"PRIu64, f->path, o->entry.seqnum, f->header->n_entries); */
+
+ if (f->header->head_entry_realtime == 0)
+ f->header->head_entry_realtime = o->entry.realtime;
+
+ f->header->tail_entry_realtime = o->entry.realtime;
+ f->header->tail_entry_monotonic = o->entry.monotonic;
+
+ f->tail_entry_monotonic_valid = true;
+
+ /* Link up the items */
+ n = journal_file_entry_n_items(o);
+ for (i = 0; i < n; i++) {
+ r = journal_file_link_entry_item(f, o, offset, i);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int journal_file_append_entry_internal(
+ JournalFile *f,
+ const dual_timestamp *ts,
+ uint64_t xor_hash,
+ const EntryItem items[], unsigned n_items,
+ uint64_t *seqnum,
+ Object **ret, uint64_t *offset) {
+ uint64_t np;
+ uint64_t osize;
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(f->header);
+ assert(items || n_items == 0);
+ assert(ts);
+
+ osize = offsetof(Object, entry.items) + (n_items * sizeof(EntryItem));
+
+ r = journal_file_append_object(f, OBJECT_ENTRY, osize, &o, &np);
+ if (r < 0)
+ return r;
+
+ o->entry.seqnum = htole64(journal_file_entry_seqnum(f, seqnum));
+ memcpy_safe(o->entry.items, items, n_items * sizeof(EntryItem));
+ o->entry.realtime = htole64(ts->realtime);
+ o->entry.monotonic = htole64(ts->monotonic);
+ o->entry.xor_hash = htole64(xor_hash);
+ o->entry.boot_id = f->header->boot_id;
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_hmac_put_object(f, OBJECT_ENTRY, o, np);
+ if (r < 0)
+ return r;
+#endif
+
+ r = journal_file_link_entry(f, o, np);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = np;
+
+ return 0;
+}
+
+void journal_file_post_change(JournalFile *f) {
+ assert(f);
+
+ /* inotify() does not receive IN_MODIFY events from file
+ * accesses done via mmap(). After each access we hence
+ * trigger IN_MODIFY by truncating the journal file to its
+ * current size which triggers IN_MODIFY. */
+
+ __sync_synchronize();
+
+ if (ftruncate(f->fd, f->last_stat.st_size) < 0)
+ log_debug_errno(errno, "Failed to truncate file to its own size: %m");
+}
+
+static int post_change_thunk(sd_event_source *timer, uint64_t usec, void *userdata) {
+ assert(userdata);
+
+ journal_file_post_change(userdata);
+
+ return 1;
+}
+
+static void schedule_post_change(JournalFile *f) {
+ sd_event_source *timer;
+ int enabled, r;
+ uint64_t now;
+
+ assert(f);
+ assert(f->post_change_timer);
+
+ timer = f->post_change_timer;
+
+ r = sd_event_source_get_enabled(timer, &enabled);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to get ftruncate timer state: %m");
+ goto fail;
+ }
+
+ if (enabled == SD_EVENT_ONESHOT)
+ return;
+
+ r = sd_event_now(sd_event_source_get_event(timer), CLOCK_MONOTONIC, &now);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to get clock's now for scheduling ftruncate: %m");
+ goto fail;
+ }
+
+ r = sd_event_source_set_time(timer, now+f->post_change_timer_period);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to set time for scheduling ftruncate: %m");
+ goto fail;
+ }
+
+ r = sd_event_source_set_enabled(timer, SD_EVENT_ONESHOT);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to enable scheduled ftruncate: %m");
+ goto fail;
+ }
+
+ return;
+
+fail:
+ /* On failure, let's simply post the change immediately. */
+ journal_file_post_change(f);
+}
+
+/* Enable coalesced change posting in a timer on the provided sd_event instance */
+int journal_file_enable_post_change_timer(JournalFile *f, sd_event *e, usec_t t) {
+ _cleanup_(sd_event_source_unrefp) sd_event_source *timer = NULL;
+ int r;
+
+ assert(f);
+ assert_return(!f->post_change_timer, -EINVAL);
+ assert(e);
+ assert(t);
+
+ r = sd_event_add_time(e, &timer, CLOCK_MONOTONIC, 0, 0, post_change_thunk, f);
+ if (r < 0)
+ return r;
+
+ r = sd_event_source_set_enabled(timer, SD_EVENT_OFF);
+ if (r < 0)
+ return r;
+
+ f->post_change_timer = timer;
+ timer = NULL;
+ f->post_change_timer_period = t;
+
+ return r;
+}
+
+static int entry_item_cmp(const void *_a, const void *_b) {
+ const EntryItem *a = _a, *b = _b;
+
+ if (le64toh(a->object_offset) < le64toh(b->object_offset))
+ return -1;
+ if (le64toh(a->object_offset) > le64toh(b->object_offset))
+ return 1;
+ return 0;
+}
+
+int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqnum, Object **ret, uint64_t *offset) {
+ unsigned i;
+ EntryItem *items;
+ int r;
+ uint64_t xor_hash = 0;
+ struct dual_timestamp _ts;
+
+ assert(f);
+ assert(f->header);
+ assert(iovec || n_iovec == 0);
+
+ if (!ts) {
+ dual_timestamp_get(&_ts);
+ ts = &_ts;
+ }
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_maybe_append_tag(f, ts->realtime);
+ if (r < 0)
+ return r;
+#endif
+
+ /* alloca() can't take 0, hence let's allocate at least one */
+ items = alloca(sizeof(EntryItem) * MAX(1u, n_iovec));
+
+ for (i = 0; i < n_iovec; i++) {
+ uint64_t p;
+ Object *o;
+
+ r = journal_file_append_data(f, iovec[i].iov_base, iovec[i].iov_len, &o, &p);
+ if (r < 0)
+ return r;
+
+ xor_hash ^= le64toh(o->data.hash);
+ items[i].object_offset = htole64(p);
+ items[i].hash = o->data.hash;
+ }
+
+ /* Order by the position on disk, in order to improve seek
+ * times for rotating media. */
+ qsort_safe(items, n_iovec, sizeof(EntryItem), entry_item_cmp);
+
+ r = journal_file_append_entry_internal(f, ts, xor_hash, items, n_iovec, seqnum, ret, offset);
+
+ /* If the memory mapping triggered a SIGBUS then we return an
+ * IO error and ignore the error code passed down to us, since
+ * it is very likely just an effect of a nullified replacement
+ * mapping page */
+
+ if (mmap_cache_got_sigbus(f->mmap, f->fd))
+ r = -EIO;
+
+ if (f->post_change_timer)
+ schedule_post_change(f);
+ else
+ journal_file_post_change(f);
+
+ return r;
+}
+
+typedef struct ChainCacheItem {
+ uint64_t first; /* the array at the beginning of the chain */
+ uint64_t array; /* the cached array */
+ uint64_t begin; /* the first item in the cached array */
+ uint64_t total; /* the total number of items in all arrays before this one in the chain */
+ uint64_t last_index; /* the last index we looked at, to optimize locality when bisecting */
+} ChainCacheItem;
+
+static void chain_cache_put(
+ OrderedHashmap *h,
+ ChainCacheItem *ci,
+ uint64_t first,
+ uint64_t array,
+ uint64_t begin,
+ uint64_t total,
+ uint64_t last_index) {
+
+ if (!ci) {
+ /* If the chain item to cache for this chain is the
+ * first one it's not worth caching anything */
+ if (array == first)
+ return;
+
+ if (ordered_hashmap_size(h) >= CHAIN_CACHE_MAX) {
+ ci = ordered_hashmap_steal_first(h);
+ assert(ci);
+ } else {
+ ci = new(ChainCacheItem, 1);
+ if (!ci)
+ return;
+ }
+
+ ci->first = first;
+
+ if (ordered_hashmap_put(h, &ci->first, ci) < 0) {
+ free(ci);
+ return;
+ }
+ } else
+ assert(ci->first == first);
+
+ ci->array = array;
+ ci->begin = begin;
+ ci->total = total;
+ ci->last_index = last_index;
+}
+
+static int generic_array_get(
+ JournalFile *f,
+ uint64_t first,
+ uint64_t i,
+ Object **ret, uint64_t *offset) {
+
+ Object *o;
+ uint64_t p = 0, a, t = 0;
+ int r;
+ ChainCacheItem *ci;
+
+ assert(f);
+
+ a = first;
+
+ /* Try the chain cache first */
+ ci = ordered_hashmap_get(f->chain_cache, &first);
+ if (ci && i > ci->total) {
+ a = ci->array;
+ i -= ci->total;
+ t = ci->total;
+ }
+
+ while (a > 0) {
+ uint64_t k;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+
+ k = journal_file_entry_array_n_items(o);
+ if (i < k) {
+ p = le64toh(o->entry_array.items[i]);
+ goto found;
+ }
+
+ i -= k;
+ t += k;
+ a = le64toh(o->entry_array.next_entry_array_offset);
+ }
+
+ return 0;
+
+found:
+ /* Let's cache this item for the next invocation */
+ chain_cache_put(f->chain_cache, ci, first, a, le64toh(o->entry_array.items[0]), t, i);
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ return 1;
+}
+
+static int generic_array_get_plus_one(
+ JournalFile *f,
+ uint64_t extra,
+ uint64_t first,
+ uint64_t i,
+ Object **ret, uint64_t *offset) {
+
+ Object *o;
+
+ assert(f);
+
+ if (i == 0) {
+ int r;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, extra, &o);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = extra;
+
+ return 1;
+ }
+
+ return generic_array_get(f, first, i-1, ret, offset);
+}
+
+enum {
+ TEST_FOUND,
+ TEST_LEFT,
+ TEST_RIGHT
+};
+
+static int generic_array_bisect(
+ JournalFile *f,
+ uint64_t first,
+ uint64_t n,
+ uint64_t needle,
+ int (*test_object)(JournalFile *f, uint64_t p, uint64_t needle),
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset,
+ uint64_t *idx) {
+
+ uint64_t a, p, t = 0, i = 0, last_p = 0, last_index = (uint64_t) -1;
+ bool subtract_one = false;
+ Object *o, *array = NULL;
+ int r;
+ ChainCacheItem *ci;
+
+ assert(f);
+ assert(test_object);
+
+ /* Start with the first array in the chain */
+ a = first;
+
+ ci = ordered_hashmap_get(f->chain_cache, &first);
+ if (ci && n > ci->total) {
+ /* Ah, we have iterated this bisection array chain
+ * previously! Let's see if we can skip ahead in the
+ * chain, as far as the last time. But we can't jump
+ * backwards in the chain, so let's check that
+ * first. */
+
+ r = test_object(f, ci->begin, needle);
+ if (r < 0)
+ return r;
+
+ if (r == TEST_LEFT) {
+ /* OK, what we are looking for is right of the
+ * begin of this EntryArray, so let's jump
+ * straight to previously cached array in the
+ * chain */
+
+ a = ci->array;
+ n -= ci->total;
+ t = ci->total;
+ last_index = ci->last_index;
+ }
+ }
+
+ while (a > 0) {
+ uint64_t left, right, k, lp;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &array);
+ if (r < 0)
+ return r;
+
+ k = journal_file_entry_array_n_items(array);
+ right = MIN(k, n);
+ if (right <= 0)
+ return 0;
+
+ i = right - 1;
+ lp = p = le64toh(array->entry_array.items[i]);
+ if (p <= 0)
+ r = -EBADMSG;
+ else
+ r = test_object(f, p, needle);
+ if (r == -EBADMSG) {
+ log_debug_errno(r, "Encountered invalid entry while bisecting, cutting algorithm short. (1)");
+ n = i;
+ continue;
+ }
+ if (r < 0)
+ return r;
+
+ if (r == TEST_FOUND)
+ r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT;
+
+ if (r == TEST_RIGHT) {
+ left = 0;
+ right -= 1;
+
+ if (last_index != (uint64_t) -1) {
+ assert(last_index <= right);
+
+ /* If we cached the last index we
+ * looked at, let's try to not to jump
+ * too wildly around and see if we can
+ * limit the range to look at early to
+ * the immediate neighbors of the last
+ * index we looked at. */
+
+ if (last_index > 0) {
+ uint64_t x = last_index - 1;
+
+ p = le64toh(array->entry_array.items[x]);
+ if (p <= 0)
+ return -EBADMSG;
+
+ r = test_object(f, p, needle);
+ if (r < 0)
+ return r;
+
+ if (r == TEST_FOUND)
+ r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT;
+
+ if (r == TEST_RIGHT)
+ right = x;
+ else
+ left = x + 1;
+ }
+
+ if (last_index < right) {
+ uint64_t y = last_index + 1;
+
+ p = le64toh(array->entry_array.items[y]);
+ if (p <= 0)
+ return -EBADMSG;
+
+ r = test_object(f, p, needle);
+ if (r < 0)
+ return r;
+
+ if (r == TEST_FOUND)
+ r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT;
+
+ if (r == TEST_RIGHT)
+ right = y;
+ else
+ left = y + 1;
+ }
+ }
+
+ for (;;) {
+ if (left == right) {
+ if (direction == DIRECTION_UP)
+ subtract_one = true;
+
+ i = left;
+ goto found;
+ }
+
+ assert(left < right);
+ i = (left + right) / 2;
+
+ p = le64toh(array->entry_array.items[i]);
+ if (p <= 0)
+ r = -EBADMSG;
+ else
+ r = test_object(f, p, needle);
+ if (r == -EBADMSG) {
+ log_debug_errno(r, "Encountered invalid entry while bisecting, cutting algorithm short. (2)");
+ right = n = i;
+ continue;
+ }
+ if (r < 0)
+ return r;
+
+ if (r == TEST_FOUND)
+ r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT;
+
+ if (r == TEST_RIGHT)
+ right = i;
+ else
+ left = i + 1;
+ }
+ }
+
+ if (k >= n) {
+ if (direction == DIRECTION_UP) {
+ i = n;
+ subtract_one = true;
+ goto found;
+ }
+
+ return 0;
+ }
+
+ last_p = lp;
+
+ n -= k;
+ t += k;
+ last_index = (uint64_t) -1;
+ a = le64toh(array->entry_array.next_entry_array_offset);
+ }
+
+ return 0;
+
+found:
+ if (subtract_one && t == 0 && i == 0)
+ return 0;
+
+ /* Let's cache this item for the next invocation */
+ chain_cache_put(f->chain_cache, ci, first, a, le64toh(array->entry_array.items[0]), t, subtract_one ? (i > 0 ? i-1 : (uint64_t) -1) : i);
+
+ if (subtract_one && i == 0)
+ p = last_p;
+ else if (subtract_one)
+ p = le64toh(array->entry_array.items[i-1]);
+ else
+ p = le64toh(array->entry_array.items[i]);
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = p;
+
+ if (idx)
+ *idx = t + i + (subtract_one ? -1 : 0);
+
+ return 1;
+}
+
+static int generic_array_bisect_plus_one(
+ JournalFile *f,
+ uint64_t extra,
+ uint64_t first,
+ uint64_t n,
+ uint64_t needle,
+ int (*test_object)(JournalFile *f, uint64_t p, uint64_t needle),
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset,
+ uint64_t *idx) {
+
+ int r;
+ bool step_back = false;
+ Object *o;
+
+ assert(f);
+ assert(test_object);
+
+ if (n <= 0)
+ return 0;
+
+ /* This bisects the array in object 'first', but first checks
+ * an extra */
+ r = test_object(f, extra, needle);
+ if (r < 0)
+ return r;
+
+ if (r == TEST_FOUND)
+ r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT;
+
+ /* if we are looking with DIRECTION_UP then we need to first
+ see if in the actual array there is a matching entry, and
+ return the last one of that. But if there isn't any we need
+ to return this one. Hence remember this, and return it
+ below. */
+ if (r == TEST_LEFT)
+ step_back = direction == DIRECTION_UP;
+
+ if (r == TEST_RIGHT) {
+ if (direction == DIRECTION_DOWN)
+ goto found;
+ else
+ return 0;
+ }
+
+ r = generic_array_bisect(f, first, n-1, needle, test_object, direction, ret, offset, idx);
+
+ if (r == 0 && step_back)
+ goto found;
+
+ if (r > 0 && idx)
+ (*idx)++;
+
+ return r;
+
+found:
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, extra, &o);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = o;
+
+ if (offset)
+ *offset = extra;
+
+ if (idx)
+ *idx = 0;
+
+ return 1;
+}
+
+_pure_ static int test_object_offset(JournalFile *f, uint64_t p, uint64_t needle) {
+ assert(f);
+ assert(p > 0);
+
+ if (p == needle)
+ return TEST_FOUND;
+ else if (p < needle)
+ return TEST_LEFT;
+ else
+ return TEST_RIGHT;
+}
+
+static int test_object_seqnum(JournalFile *f, uint64_t p, uint64_t needle) {
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(p > 0);
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le64toh(o->entry.seqnum) == needle)
+ return TEST_FOUND;
+ else if (le64toh(o->entry.seqnum) < needle)
+ return TEST_LEFT;
+ else
+ return TEST_RIGHT;
+}
+
+int journal_file_move_to_entry_by_seqnum(
+ JournalFile *f,
+ uint64_t seqnum,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+ assert(f);
+ assert(f->header);
+
+ return generic_array_bisect(f,
+ le64toh(f->header->entry_array_offset),
+ le64toh(f->header->n_entries),
+ seqnum,
+ test_object_seqnum,
+ direction,
+ ret, offset, NULL);
+}
+
+static int test_object_realtime(JournalFile *f, uint64_t p, uint64_t needle) {
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(p > 0);
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le64toh(o->entry.realtime) == needle)
+ return TEST_FOUND;
+ else if (le64toh(o->entry.realtime) < needle)
+ return TEST_LEFT;
+ else
+ return TEST_RIGHT;
+}
+
+int journal_file_move_to_entry_by_realtime(
+ JournalFile *f,
+ uint64_t realtime,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+ assert(f);
+ assert(f->header);
+
+ return generic_array_bisect(f,
+ le64toh(f->header->entry_array_offset),
+ le64toh(f->header->n_entries),
+ realtime,
+ test_object_realtime,
+ direction,
+ ret, offset, NULL);
+}
+
+static int test_object_monotonic(JournalFile *f, uint64_t p, uint64_t needle) {
+ Object *o;
+ int r;
+
+ assert(f);
+ assert(p > 0);
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le64toh(o->entry.monotonic) == needle)
+ return TEST_FOUND;
+ else if (le64toh(o->entry.monotonic) < needle)
+ return TEST_LEFT;
+ else
+ return TEST_RIGHT;
+}
+
+static int find_data_object_by_boot_id(
+ JournalFile *f,
+ sd_id128_t boot_id,
+ Object **o,
+ uint64_t *b) {
+
+ char t[sizeof("_BOOT_ID=")-1 + 32 + 1] = "_BOOT_ID=";
+
+ sd_id128_to_string(boot_id, t + 9);
+ return journal_file_find_data_object(f, t, sizeof(t) - 1, o, b);
+}
+
+int journal_file_move_to_entry_by_monotonic(
+ JournalFile *f,
+ sd_id128_t boot_id,
+ uint64_t monotonic,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+
+ Object *o;
+ int r;
+
+ assert(f);
+
+ r = find_data_object_by_boot_id(f, boot_id, &o, NULL);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ return generic_array_bisect_plus_one(f,
+ le64toh(o->data.entry_offset),
+ le64toh(o->data.entry_array_offset),
+ le64toh(o->data.n_entries),
+ monotonic,
+ test_object_monotonic,
+ direction,
+ ret, offset, NULL);
+}
+
+void journal_file_reset_location(JournalFile *f) {
+ f->location_type = LOCATION_HEAD;
+ f->current_offset = 0;
+ f->current_seqnum = 0;
+ f->current_realtime = 0;
+ f->current_monotonic = 0;
+ zero(f->current_boot_id);
+ f->current_xor_hash = 0;
+}
+
+void journal_file_save_location(JournalFile *f, Object *o, uint64_t offset) {
+ f->location_type = LOCATION_SEEK;
+ f->current_offset = offset;
+ f->current_seqnum = le64toh(o->entry.seqnum);
+ f->current_realtime = le64toh(o->entry.realtime);
+ f->current_monotonic = le64toh(o->entry.monotonic);
+ f->current_boot_id = o->entry.boot_id;
+ f->current_xor_hash = le64toh(o->entry.xor_hash);
+}
+
+int journal_file_compare_locations(JournalFile *af, JournalFile *bf) {
+ assert(af);
+ assert(af->header);
+ assert(bf);
+ assert(bf->header);
+ assert(af->location_type == LOCATION_SEEK);
+ assert(bf->location_type == LOCATION_SEEK);
+
+ /* If contents and timestamps match, these entries are
+ * identical, even if the seqnum does not match */
+ if (sd_id128_equal(af->current_boot_id, bf->current_boot_id) &&
+ af->current_monotonic == bf->current_monotonic &&
+ af->current_realtime == bf->current_realtime &&
+ af->current_xor_hash == bf->current_xor_hash)
+ return 0;
+
+ if (sd_id128_equal(af->header->seqnum_id, bf->header->seqnum_id)) {
+
+ /* If this is from the same seqnum source, compare
+ * seqnums */
+ if (af->current_seqnum < bf->current_seqnum)
+ return -1;
+ if (af->current_seqnum > bf->current_seqnum)
+ return 1;
+
+ /* Wow! This is weird, different data but the same
+ * seqnums? Something is borked, but let's make the
+ * best of it and compare by time. */
+ }
+
+ if (sd_id128_equal(af->current_boot_id, bf->current_boot_id)) {
+
+ /* If the boot id matches, compare monotonic time */
+ if (af->current_monotonic < bf->current_monotonic)
+ return -1;
+ if (af->current_monotonic > bf->current_monotonic)
+ return 1;
+ }
+
+ /* Otherwise, compare UTC time */
+ if (af->current_realtime < bf->current_realtime)
+ return -1;
+ if (af->current_realtime > bf->current_realtime)
+ return 1;
+
+ /* Finally, compare by contents */
+ if (af->current_xor_hash < bf->current_xor_hash)
+ return -1;
+ if (af->current_xor_hash > bf->current_xor_hash)
+ return 1;
+
+ return 0;
+}
+
+int journal_file_next_entry(
+ JournalFile *f,
+ uint64_t p,
+ direction_t direction,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t i, n, ofs;
+ int r;
+
+ assert(f);
+ assert(f->header);
+
+ n = le64toh(f->header->n_entries);
+ if (n <= 0)
+ return 0;
+
+ if (p == 0)
+ i = direction == DIRECTION_DOWN ? 0 : n - 1;
+ else {
+ r = generic_array_bisect(f,
+ le64toh(f->header->entry_array_offset),
+ le64toh(f->header->n_entries),
+ p,
+ test_object_offset,
+ DIRECTION_DOWN,
+ NULL, NULL,
+ &i);
+ if (r <= 0)
+ return r;
+
+ if (direction == DIRECTION_DOWN) {
+ if (i >= n - 1)
+ return 0;
+
+ i++;
+ } else {
+ if (i <= 0)
+ return 0;
+
+ i--;
+ }
+ }
+
+ /* And jump to it */
+ r = generic_array_get(f,
+ le64toh(f->header->entry_array_offset),
+ i,
+ ret, &ofs);
+ if (r == -EBADMSG && direction == DIRECTION_DOWN) {
+ /* Special case: when we iterate throught the journal file linearly, and hit an entry we can't read,
+ * consider this the end of the journal file. */
+ log_debug_errno(r, "Encountered entry we can't read while iterating through journal file. Considering this the end of the file.");
+ return 0;
+ }
+ if (r <= 0)
+ return r;
+
+ if (p > 0 &&
+ (direction == DIRECTION_DOWN ? ofs <= p : ofs >= p)) {
+ log_debug("%s: entry array corrupted at entry %" PRIu64, f->path, i);
+ return -EBADMSG;
+ }
+
+ if (offset)
+ *offset = ofs;
+
+ return 1;
+}
+
+int journal_file_next_entry_for_data(
+ JournalFile *f,
+ Object *o, uint64_t p,
+ uint64_t data_offset,
+ direction_t direction,
+ Object **ret, uint64_t *offset) {
+
+ uint64_t n, i;
+ int r;
+ Object *d;
+
+ assert(f);
+ assert(p > 0 || !o);
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d);
+ if (r < 0)
+ return r;
+
+ n = le64toh(d->data.n_entries);
+ if (n <= 0)
+ return n;
+
+ if (!o)
+ i = direction == DIRECTION_DOWN ? 0 : n - 1;
+ else {
+ if (o->object.type != OBJECT_ENTRY)
+ return -EINVAL;
+
+ r = generic_array_bisect_plus_one(f,
+ le64toh(d->data.entry_offset),
+ le64toh(d->data.entry_array_offset),
+ le64toh(d->data.n_entries),
+ p,
+ test_object_offset,
+ DIRECTION_DOWN,
+ NULL, NULL,
+ &i);
+
+ if (r <= 0)
+ return r;
+
+ if (direction == DIRECTION_DOWN) {
+ if (i >= n - 1)
+ return 0;
+
+ i++;
+ } else {
+ if (i <= 0)
+ return 0;
+
+ i--;
+ }
+
+ }
+
+ return generic_array_get_plus_one(f,
+ le64toh(d->data.entry_offset),
+ le64toh(d->data.entry_array_offset),
+ i,
+ ret, offset);
+}
+
+int journal_file_move_to_entry_by_offset_for_data(
+ JournalFile *f,
+ uint64_t data_offset,
+ uint64_t p,
+ direction_t direction,
+ Object **ret, uint64_t *offset) {
+
+ int r;
+ Object *d;
+
+ assert(f);
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d);
+ if (r < 0)
+ return r;
+
+ return generic_array_bisect_plus_one(f,
+ le64toh(d->data.entry_offset),
+ le64toh(d->data.entry_array_offset),
+ le64toh(d->data.n_entries),
+ p,
+ test_object_offset,
+ direction,
+ ret, offset, NULL);
+}
+
+int journal_file_move_to_entry_by_monotonic_for_data(
+ JournalFile *f,
+ uint64_t data_offset,
+ sd_id128_t boot_id,
+ uint64_t monotonic,
+ direction_t direction,
+ Object **ret, uint64_t *offset) {
+
+ Object *o, *d;
+ int r;
+ uint64_t b, z;
+
+ assert(f);
+
+ /* First, seek by time */
+ r = find_data_object_by_boot_id(f, boot_id, &o, &b);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ r = generic_array_bisect_plus_one(f,
+ le64toh(o->data.entry_offset),
+ le64toh(o->data.entry_array_offset),
+ le64toh(o->data.n_entries),
+ monotonic,
+ test_object_monotonic,
+ direction,
+ NULL, &z, NULL);
+ if (r <= 0)
+ return r;
+
+ /* And now, continue seeking until we find an entry that
+ * exists in both bisection arrays */
+
+ for (;;) {
+ Object *qo;
+ uint64_t p, q;
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d);
+ if (r < 0)
+ return r;
+
+ r = generic_array_bisect_plus_one(f,
+ le64toh(d->data.entry_offset),
+ le64toh(d->data.entry_array_offset),
+ le64toh(d->data.n_entries),
+ z,
+ test_object_offset,
+ direction,
+ NULL, &p, NULL);
+ if (r <= 0)
+ return r;
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, b, &o);
+ if (r < 0)
+ return r;
+
+ r = generic_array_bisect_plus_one(f,
+ le64toh(o->data.entry_offset),
+ le64toh(o->data.entry_array_offset),
+ le64toh(o->data.n_entries),
+ p,
+ test_object_offset,
+ direction,
+ &qo, &q, NULL);
+
+ if (r <= 0)
+ return r;
+
+ if (p == q) {
+ if (ret)
+ *ret = qo;
+ if (offset)
+ *offset = q;
+
+ return 1;
+ }
+
+ z = q;
+ }
+}
+
+int journal_file_move_to_entry_by_seqnum_for_data(
+ JournalFile *f,
+ uint64_t data_offset,
+ uint64_t seqnum,
+ direction_t direction,
+ Object **ret, uint64_t *offset) {
+
+ Object *d;
+ int r;
+
+ assert(f);
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d);
+ if (r < 0)
+ return r;
+
+ return generic_array_bisect_plus_one(f,
+ le64toh(d->data.entry_offset),
+ le64toh(d->data.entry_array_offset),
+ le64toh(d->data.n_entries),
+ seqnum,
+ test_object_seqnum,
+ direction,
+ ret, offset, NULL);
+}
+
+int journal_file_move_to_entry_by_realtime_for_data(
+ JournalFile *f,
+ uint64_t data_offset,
+ uint64_t realtime,
+ direction_t direction,
+ Object **ret, uint64_t *offset) {
+
+ Object *d;
+ int r;
+
+ assert(f);
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, data_offset, &d);
+ if (r < 0)
+ return r;
+
+ return generic_array_bisect_plus_one(f,
+ le64toh(d->data.entry_offset),
+ le64toh(d->data.entry_array_offset),
+ le64toh(d->data.n_entries),
+ realtime,
+ test_object_realtime,
+ direction,
+ ret, offset, NULL);
+}
+
+void journal_file_dump(JournalFile *f) {
+ Object *o;
+ int r;
+ uint64_t p;
+
+ assert(f);
+ assert(f->header);
+
+ journal_file_print_header(f);
+
+ p = le64toh(f->header->header_size);
+ while (p != 0) {
+ r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &o);
+ if (r < 0)
+ goto fail;
+
+ switch (o->object.type) {
+
+ case OBJECT_UNUSED:
+ printf("Type: OBJECT_UNUSED\n");
+ break;
+
+ case OBJECT_DATA:
+ printf("Type: OBJECT_DATA\n");
+ break;
+
+ case OBJECT_FIELD:
+ printf("Type: OBJECT_FIELD\n");
+ break;
+
+ case OBJECT_ENTRY:
+ printf("Type: OBJECT_ENTRY seqnum=%"PRIu64" monotonic=%"PRIu64" realtime=%"PRIu64"\n",
+ le64toh(o->entry.seqnum),
+ le64toh(o->entry.monotonic),
+ le64toh(o->entry.realtime));
+ break;
+
+ case OBJECT_FIELD_HASH_TABLE:
+ printf("Type: OBJECT_FIELD_HASH_TABLE\n");
+ break;
+
+ case OBJECT_DATA_HASH_TABLE:
+ printf("Type: OBJECT_DATA_HASH_TABLE\n");
+ break;
+
+ case OBJECT_ENTRY_ARRAY:
+ printf("Type: OBJECT_ENTRY_ARRAY\n");
+ break;
+
+ case OBJECT_TAG:
+ printf("Type: OBJECT_TAG seqnum=%"PRIu64" epoch=%"PRIu64"\n",
+ le64toh(o->tag.seqnum),
+ le64toh(o->tag.epoch));
+ break;
+
+ default:
+ printf("Type: unknown (%i)\n", o->object.type);
+ break;
+ }
+
+ if (o->object.flags & OBJECT_COMPRESSION_MASK)
+ printf("Flags: %s\n",
+ object_compressed_to_string(o->object.flags & OBJECT_COMPRESSION_MASK));
+
+ if (p == le64toh(f->header->tail_object_offset))
+ p = 0;
+ else
+ p = p + ALIGN64(le64toh(o->object.size));
+ }
+
+ return;
+fail:
+ log_error("File corrupt");
+}
+
+static const char* format_timestamp_safe(char *buf, size_t l, usec_t t) {
+ const char *x;
+
+ x = format_timestamp(buf, l, t);
+ if (x)
+ return x;
+ return " --- ";
+}
+
+void journal_file_print_header(JournalFile *f) {
+ char a[33], b[33], c[33], d[33];
+ char x[FORMAT_TIMESTAMP_MAX], y[FORMAT_TIMESTAMP_MAX], z[FORMAT_TIMESTAMP_MAX];
+ struct stat st;
+ char bytes[FORMAT_BYTES_MAX];
+
+ assert(f);
+ assert(f->header);
+
+ printf("File Path: %s\n"
+ "File ID: %s\n"
+ "Machine ID: %s\n"
+ "Boot ID: %s\n"
+ "Sequential Number ID: %s\n"
+ "State: %s\n"
+ "Compatible Flags:%s%s\n"
+ "Incompatible Flags:%s%s%s\n"
+ "Header size: %"PRIu64"\n"
+ "Arena size: %"PRIu64"\n"
+ "Data Hash Table Size: %"PRIu64"\n"
+ "Field Hash Table Size: %"PRIu64"\n"
+ "Rotate Suggested: %s\n"
+ "Head Sequential Number: %"PRIu64" (%"PRIx64")\n"
+ "Tail Sequential Number: %"PRIu64" (%"PRIx64")\n"
+ "Head Realtime Timestamp: %s (%"PRIx64")\n"
+ "Tail Realtime Timestamp: %s (%"PRIx64")\n"
+ "Tail Monotonic Timestamp: %s (%"PRIx64")\n"
+ "Objects: %"PRIu64"\n"
+ "Entry Objects: %"PRIu64"\n",
+ f->path,
+ sd_id128_to_string(f->header->file_id, a),
+ sd_id128_to_string(f->header->machine_id, b),
+ sd_id128_to_string(f->header->boot_id, c),
+ sd_id128_to_string(f->header->seqnum_id, d),
+ f->header->state == STATE_OFFLINE ? "OFFLINE" :
+ f->header->state == STATE_ONLINE ? "ONLINE" :
+ f->header->state == STATE_ARCHIVED ? "ARCHIVED" : "UNKNOWN",
+ JOURNAL_HEADER_SEALED(f->header) ? " SEALED" : "",
+ (le32toh(f->header->compatible_flags) & ~HEADER_COMPATIBLE_ANY) ? " ???" : "",
+ JOURNAL_HEADER_COMPRESSED_XZ(f->header) ? " COMPRESSED-XZ" : "",
+ JOURNAL_HEADER_COMPRESSED_LZ4(f->header) ? " COMPRESSED-LZ4" : "",
+ (le32toh(f->header->incompatible_flags) & ~HEADER_INCOMPATIBLE_ANY) ? " ???" : "",
+ le64toh(f->header->header_size),
+ le64toh(f->header->arena_size),
+ le64toh(f->header->data_hash_table_size) / sizeof(HashItem),
+ le64toh(f->header->field_hash_table_size) / sizeof(HashItem),
+ yes_no(journal_file_rotate_suggested(f, 0)),
+ le64toh(f->header->head_entry_seqnum), le64toh(f->header->head_entry_seqnum),
+ le64toh(f->header->tail_entry_seqnum), le64toh(f->header->tail_entry_seqnum),
+ format_timestamp_safe(x, sizeof(x), le64toh(f->header->head_entry_realtime)), le64toh(f->header->head_entry_realtime),
+ format_timestamp_safe(y, sizeof(y), le64toh(f->header->tail_entry_realtime)), le64toh(f->header->tail_entry_realtime),
+ format_timespan(z, sizeof(z), le64toh(f->header->tail_entry_monotonic), USEC_PER_MSEC), le64toh(f->header->tail_entry_monotonic),
+ le64toh(f->header->n_objects),
+ le64toh(f->header->n_entries));
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_data))
+ printf("Data Objects: %"PRIu64"\n"
+ "Data Hash Table Fill: %.1f%%\n",
+ le64toh(f->header->n_data),
+ 100.0 * (double) le64toh(f->header->n_data) / ((double) (le64toh(f->header->data_hash_table_size) / sizeof(HashItem))));
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_fields))
+ printf("Field Objects: %"PRIu64"\n"
+ "Field Hash Table Fill: %.1f%%\n",
+ le64toh(f->header->n_fields),
+ 100.0 * (double) le64toh(f->header->n_fields) / ((double) (le64toh(f->header->field_hash_table_size) / sizeof(HashItem))));
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_tags))
+ printf("Tag Objects: %"PRIu64"\n",
+ le64toh(f->header->n_tags));
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays))
+ printf("Entry Array Objects: %"PRIu64"\n",
+ le64toh(f->header->n_entry_arrays));
+
+ if (fstat(f->fd, &st) >= 0)
+ printf("Disk usage: %s\n", format_bytes(bytes, sizeof(bytes), (uint64_t) st.st_blocks * 512ULL));
+}
+
+static int journal_file_warn_btrfs(JournalFile *f) {
+ unsigned attrs;
+ int r;
+
+ assert(f);
+
+ /* Before we write anything, check if the COW logic is turned
+ * off on btrfs. Given our write pattern that is quite
+ * unfriendly to COW file systems this should greatly improve
+ * performance on COW file systems, such as btrfs, at the
+ * expense of data integrity features (which shouldn't be too
+ * bad, given that we do our own checksumming). */
+
+ r = btrfs_is_filesystem(f->fd);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to determine if journal is on btrfs: %m");
+ if (!r)
+ return 0;
+
+ r = read_attr_fd(f->fd, &attrs);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to read file attributes: %m");
+
+ if (attrs & FS_NOCOW_FL) {
+ log_debug("Detected btrfs file system with copy-on-write disabled, all is good.");
+ return 0;
+ }
+
+ log_notice("Creating journal file %s on a btrfs file system, and copy-on-write is enabled. "
+ "This is likely to slow down journal access substantially, please consider turning "
+ "off the copy-on-write file attribute on the journal directory, using chattr +C.", f->path);
+
+ return 1;
+}
+
+int journal_file_open(
+ int fd,
+ const char *fname,
+ int flags,
+ mode_t mode,
+ bool compress,
+ bool seal,
+ JournalMetrics *metrics,
+ MMapCache *mmap_cache,
+ Set *deferred_closes,
+ JournalFile *template,
+ JournalFile **ret) {
+
+ bool newly_created = false;
+ JournalFile *f;
+ void *h;
+ int r;
+
+ assert(ret);
+ assert(fd >= 0 || fname);
+
+ if ((flags & O_ACCMODE) != O_RDONLY &&
+ (flags & O_ACCMODE) != O_RDWR)
+ return -EINVAL;
+
+ if (fname) {
+ if (!endswith(fname, ".journal") &&
+ !endswith(fname, ".journal~"))
+ return -EINVAL;
+ }
+
+ f = new0(JournalFile, 1);
+ if (!f)
+ return -ENOMEM;
+
+ f->fd = fd;
+ f->mode = mode;
+
+ f->flags = flags;
+ f->prot = prot_from_flags(flags);
+ f->writable = (flags & O_ACCMODE) != O_RDONLY;
+#if defined(HAVE_LZ4)
+ f->compress_lz4 = compress;
+#elif defined(HAVE_XZ)
+ f->compress_xz = compress;
+#endif
+#ifdef HAVE_GCRYPT
+ f->seal = seal;
+#endif
+
+ if (mmap_cache)
+ f->mmap = mmap_cache_ref(mmap_cache);
+ else {
+ f->mmap = mmap_cache_new();
+ if (!f->mmap) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ if (fname)
+ f->path = strdup(fname);
+ else /* If we don't know the path, fill in something explanatory and vaguely useful */
+ asprintf(&f->path, "/proc/self/%i", fd);
+ if (!f->path) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ f->chain_cache = ordered_hashmap_new(&uint64_hash_ops);
+ if (!f->chain_cache) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (f->fd < 0) {
+ f->fd = open(f->path, f->flags|O_CLOEXEC, f->mode);
+ if (f->fd < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ /* fds we opened here by us should also be closed by us. */
+ f->close_fd = true;
+ }
+
+ r = journal_file_fstat(f);
+ if (r < 0)
+ goto fail;
+
+ if (f->last_stat.st_size == 0 && f->writable) {
+
+ (void) journal_file_warn_btrfs(f);
+
+ /* Let's attach the creation time to the journal file,
+ * so that the vacuuming code knows the age of this
+ * file even if the file might end up corrupted one
+ * day... Ideally we'd just use the creation time many
+ * file systems maintain for each file, but there is
+ * currently no usable API to query this, hence let's
+ * emulate this via extended attributes. If extended
+ * attributes are not supported we'll just skip this,
+ * and rely solely on mtime/atime/ctime of the file. */
+
+ fd_setcrtime(f->fd, 0);
+
+#ifdef HAVE_GCRYPT
+ /* Try to load the FSPRG state, and if we can't, then
+ * just don't do sealing */
+ if (f->seal) {
+ r = journal_file_fss_load(f);
+ if (r < 0)
+ f->seal = false;
+ }
+#endif
+
+ r = journal_file_init_header(f, template);
+ if (r < 0)
+ goto fail;
+
+ r = journal_file_fstat(f);
+ if (r < 0)
+ goto fail;
+
+ newly_created = true;
+ }
+
+ if (f->last_stat.st_size < (off_t) HEADER_SIZE_MIN) {
+ r = -ENODATA;
+ goto fail;
+ }
+
+ r = mmap_cache_get(f->mmap, f->fd, f->prot, CONTEXT_HEADER, true, 0, PAGE_ALIGN(sizeof(Header)), &f->last_stat, &h);
+ if (r < 0)
+ goto fail;
+
+ f->header = h;
+
+ if (!newly_created) {
+ if (deferred_closes)
+ journal_file_close_set(deferred_closes);
+
+ r = journal_file_verify_header(f);
+ if (r < 0)
+ goto fail;
+ }
+
+#ifdef HAVE_GCRYPT
+ if (!newly_created && f->writable) {
+ r = journal_file_fss_load(f);
+ if (r < 0)
+ goto fail;
+ }
+#endif
+
+ if (f->writable) {
+ if (metrics) {
+ journal_default_metrics(metrics, f->fd);
+ f->metrics = *metrics;
+ } else if (template)
+ f->metrics = template->metrics;
+
+ r = journal_file_refresh_header(f);
+ if (r < 0)
+ goto fail;
+ }
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_hmac_setup(f);
+ if (r < 0)
+ goto fail;
+#endif
+
+ if (newly_created) {
+ r = journal_file_setup_field_hash_table(f);
+ if (r < 0)
+ goto fail;
+
+ r = journal_file_setup_data_hash_table(f);
+ if (r < 0)
+ goto fail;
+
+#ifdef HAVE_GCRYPT
+ r = journal_file_append_first_tag(f);
+ if (r < 0)
+ goto fail;
+#endif
+ }
+
+ if (mmap_cache_got_sigbus(f->mmap, f->fd)) {
+ r = -EIO;
+ goto fail;
+ }
+
+ if (template && template->post_change_timer) {
+ r = journal_file_enable_post_change_timer(
+ f,
+ sd_event_source_get_event(template->post_change_timer),
+ template->post_change_timer_period);
+
+ if (r < 0)
+ goto fail;
+ }
+
+ /* The file is opened now successfully, thus we take possession of any passed in fd. */
+ f->close_fd = true;
+
+ *ret = f;
+ return 0;
+
+fail:
+ if (f->fd >= 0 && mmap_cache_got_sigbus(f->mmap, f->fd))
+ r = -EIO;
+
+ (void) journal_file_close(f);
+
+ return r;
+}
+
+int journal_file_rotate(JournalFile **f, bool compress, bool seal, Set *deferred_closes) {
+ _cleanup_free_ char *p = NULL;
+ size_t l;
+ JournalFile *old_file, *new_file = NULL;
+ int r;
+
+ assert(f);
+ assert(*f);
+
+ old_file = *f;
+
+ if (!old_file->writable)
+ return -EINVAL;
+
+ /* Is this a journal file that was passed to us as fd? If so, we synthesized a path name for it, and we refuse
+ * rotation, since we don't know the actual path, and couldn't rename the file hence.*/
+ if (path_startswith(old_file->path, "/proc/self/fd"))
+ return -EINVAL;
+
+ if (!endswith(old_file->path, ".journal"))
+ return -EINVAL;
+
+ l = strlen(old_file->path);
+ r = asprintf(&p, "%.*s@" SD_ID128_FORMAT_STR "-%016"PRIx64"-%016"PRIx64".journal",
+ (int) l - 8, old_file->path,
+ SD_ID128_FORMAT_VAL(old_file->header->seqnum_id),
+ le64toh((*f)->header->head_entry_seqnum),
+ le64toh((*f)->header->head_entry_realtime));
+ if (r < 0)
+ return -ENOMEM;
+
+ /* Try to rename the file to the archived version. If the file
+ * already was deleted, we'll get ENOENT, let's ignore that
+ * case. */
+ r = rename(old_file->path, p);
+ if (r < 0 && errno != ENOENT)
+ return -errno;
+
+ /* Sync the rename to disk */
+ (void) fsync_directory_of_file(old_file->fd);
+
+ /* Set as archive so offlining commits w/state=STATE_ARCHIVED.
+ * Previously we would set old_file->header->state to STATE_ARCHIVED directly here,
+ * but journal_file_set_offline() short-circuits when state != STATE_ONLINE, which
+ * would result in the rotated journal never getting fsync() called before closing.
+ * Now we simply queue the archive state by setting an archive bit, leaving the state
+ * as STATE_ONLINE so proper offlining occurs. */
+ old_file->archive = true;
+
+ /* Currently, btrfs is not very good with out write patterns
+ * and fragments heavily. Let's defrag our journal files when
+ * we archive them */
+ old_file->defrag_on_close = true;
+
+ r = journal_file_open(-1, old_file->path, old_file->flags, old_file->mode, compress, seal, NULL, old_file->mmap, deferred_closes, old_file, &new_file);
+
+ if (deferred_closes &&
+ set_put(deferred_closes, old_file) >= 0)
+ (void) journal_file_set_offline(old_file, false);
+ else
+ (void) journal_file_close(old_file);
+
+ *f = new_file;
+ return r;
+}
+
+int journal_file_open_reliably(
+ const char *fname,
+ int flags,
+ mode_t mode,
+ bool compress,
+ bool seal,
+ JournalMetrics *metrics,
+ MMapCache *mmap_cache,
+ Set *deferred_closes,
+ JournalFile *template,
+ JournalFile **ret) {
+
+ int r;
+ size_t l;
+ _cleanup_free_ char *p = NULL;
+
+ r = journal_file_open(-1, fname, flags, mode, compress, seal, metrics, mmap_cache, deferred_closes, template, ret);
+ if (!IN_SET(r,
+ -EBADMSG, /* corrupted */
+ -ENODATA, /* truncated */
+ -EHOSTDOWN, /* other machine */
+ -EPROTONOSUPPORT, /* incompatible feature */
+ -EBUSY, /* unclean shutdown */
+ -ESHUTDOWN, /* already archived */
+ -EIO, /* IO error, including SIGBUS on mmap */
+ -EIDRM /* File has been deleted */))
+ return r;
+
+ if ((flags & O_ACCMODE) == O_RDONLY)
+ return r;
+
+ if (!(flags & O_CREAT))
+ return r;
+
+ if (!endswith(fname, ".journal"))
+ return r;
+
+ /* The file is corrupted. Rotate it away and try it again (but only once) */
+
+ l = strlen(fname);
+ if (asprintf(&p, "%.*s@%016"PRIx64 "-%016"PRIx64 ".journal~",
+ (int) l - 8, fname,
+ now(CLOCK_REALTIME),
+ random_u64()) < 0)
+ return -ENOMEM;
+
+ if (rename(fname, p) < 0)
+ return -errno;
+
+ /* btrfs doesn't cope well with our write pattern and
+ * fragments heavily. Let's defrag all files we rotate */
+
+ (void) chattr_path(p, 0, FS_NOCOW_FL);
+ (void) btrfs_defrag(p);
+
+ log_warning_errno(r, "File %s corrupted or uncleanly shut down, renaming and replacing.", fname);
+
+ return journal_file_open(-1, fname, flags, mode, compress, seal, metrics, mmap_cache, deferred_closes, template, ret);
+}
+
+int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint64_t p, uint64_t *seqnum, Object **ret, uint64_t *offset) {
+ uint64_t i, n;
+ uint64_t q, xor_hash = 0;
+ int r;
+ EntryItem *items;
+ dual_timestamp ts;
+
+ assert(from);
+ assert(to);
+ assert(o);
+ assert(p);
+
+ if (!to->writable)
+ return -EPERM;
+
+ ts.monotonic = le64toh(o->entry.monotonic);
+ ts.realtime = le64toh(o->entry.realtime);
+
+ n = journal_file_entry_n_items(o);
+ /* alloca() can't take 0, hence let's allocate at least one */
+ items = alloca(sizeof(EntryItem) * MAX(1u, n));
+
+ for (i = 0; i < n; i++) {
+ uint64_t l, h;
+ le64_t le_hash;
+ size_t t;
+ void *data;
+ Object *u;
+
+ q = le64toh(o->entry.items[i].object_offset);
+ le_hash = o->entry.items[i].hash;
+
+ r = journal_file_move_to_object(from, OBJECT_DATA, q, &o);
+ if (r < 0)
+ return r;
+
+ if (le_hash != o->data.hash)
+ return -EBADMSG;
+
+ l = le64toh(o->object.size) - offsetof(Object, data.payload);
+ t = (size_t) l;
+
+ /* We hit the limit on 32bit machines */
+ if ((uint64_t) t != l)
+ return -E2BIG;
+
+ if (o->object.flags & OBJECT_COMPRESSION_MASK) {
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ size_t rsize = 0;
+
+ r = decompress_blob(o->object.flags & OBJECT_COMPRESSION_MASK,
+ o->data.payload, l, &from->compress_buffer, &from->compress_buffer_size, &rsize, 0);
+ if (r < 0)
+ return r;
+
+ data = from->compress_buffer;
+ l = rsize;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+ } else
+ data = o->data.payload;
+
+ r = journal_file_append_data(to, data, l, &u, &h);
+ if (r < 0)
+ return r;
+
+ xor_hash ^= le64toh(u->data.hash);
+ items[i].object_offset = htole64(h);
+ items[i].hash = u->data.hash;
+
+ r = journal_file_move_to_object(from, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+ }
+
+ r = journal_file_append_entry_internal(to, &ts, xor_hash, items, n, seqnum, ret, offset);
+
+ if (mmap_cache_got_sigbus(to->mmap, to->fd))
+ return -EIO;
+
+ return r;
+}
+
+void journal_reset_metrics(JournalMetrics *m) {
+ assert(m);
+
+ /* Set everything to "pick automatic values". */
+
+ *m = (JournalMetrics) {
+ .min_use = (uint64_t) -1,
+ .max_use = (uint64_t) -1,
+ .min_size = (uint64_t) -1,
+ .max_size = (uint64_t) -1,
+ .keep_free = (uint64_t) -1,
+ .n_max_files = (uint64_t) -1,
+ };
+}
+
+void journal_default_metrics(JournalMetrics *m, int fd) {
+ char a[FORMAT_BYTES_MAX], b[FORMAT_BYTES_MAX], c[FORMAT_BYTES_MAX], d[FORMAT_BYTES_MAX], e[FORMAT_BYTES_MAX];
+ struct statvfs ss;
+ uint64_t fs_size;
+
+ assert(m);
+ assert(fd >= 0);
+
+ if (fstatvfs(fd, &ss) >= 0)
+ fs_size = ss.f_frsize * ss.f_blocks;
+ else {
+ log_debug_errno(errno, "Failed to detremine disk size: %m");
+ fs_size = 0;
+ }
+
+ if (m->max_use == (uint64_t) -1) {
+
+ if (fs_size > 0) {
+ m->max_use = PAGE_ALIGN(fs_size / 10); /* 10% of file system size */
+
+ if (m->max_use > DEFAULT_MAX_USE_UPPER)
+ m->max_use = DEFAULT_MAX_USE_UPPER;
+
+ if (m->max_use < DEFAULT_MAX_USE_LOWER)
+ m->max_use = DEFAULT_MAX_USE_LOWER;
+ } else
+ m->max_use = DEFAULT_MAX_USE_LOWER;
+ } else {
+ m->max_use = PAGE_ALIGN(m->max_use);
+
+ if (m->max_use != 0 && m->max_use < JOURNAL_FILE_SIZE_MIN*2)
+ m->max_use = JOURNAL_FILE_SIZE_MIN*2;
+ }
+
+ if (m->min_use == (uint64_t) -1)
+ m->min_use = DEFAULT_MIN_USE;
+
+ if (m->min_use > m->max_use)
+ m->min_use = m->max_use;
+
+ if (m->max_size == (uint64_t) -1) {
+ m->max_size = PAGE_ALIGN(m->max_use / 8); /* 8 chunks */
+
+ if (m->max_size > DEFAULT_MAX_SIZE_UPPER)
+ m->max_size = DEFAULT_MAX_SIZE_UPPER;
+ } else
+ m->max_size = PAGE_ALIGN(m->max_size);
+
+ if (m->max_size != 0) {
+ if (m->max_size < JOURNAL_FILE_SIZE_MIN)
+ m->max_size = JOURNAL_FILE_SIZE_MIN;
+
+ if (m->max_use != 0 && m->max_size*2 > m->max_use)
+ m->max_use = m->max_size*2;
+ }
+
+ if (m->min_size == (uint64_t) -1)
+ m->min_size = JOURNAL_FILE_SIZE_MIN;
+ else {
+ m->min_size = PAGE_ALIGN(m->min_size);
+
+ if (m->min_size < JOURNAL_FILE_SIZE_MIN)
+ m->min_size = JOURNAL_FILE_SIZE_MIN;
+
+ if (m->max_size != 0 && m->min_size > m->max_size)
+ m->max_size = m->min_size;
+ }
+
+ if (m->keep_free == (uint64_t) -1) {
+
+ if (fs_size > 0) {
+ m->keep_free = PAGE_ALIGN(fs_size * 3 / 20); /* 15% of file system size */
+
+ if (m->keep_free > DEFAULT_KEEP_FREE_UPPER)
+ m->keep_free = DEFAULT_KEEP_FREE_UPPER;
+
+ } else
+ m->keep_free = DEFAULT_KEEP_FREE;
+ }
+
+ if (m->n_max_files == (uint64_t) -1)
+ m->n_max_files = DEFAULT_N_MAX_FILES;
+
+ log_debug("Fixed min_use=%s max_use=%s max_size=%s min_size=%s keep_free=%s n_max_files=%" PRIu64,
+ format_bytes(a, sizeof(a), m->min_use),
+ format_bytes(b, sizeof(b), m->max_use),
+ format_bytes(c, sizeof(c), m->max_size),
+ format_bytes(d, sizeof(d), m->min_size),
+ format_bytes(e, sizeof(e), m->keep_free),
+ m->n_max_files);
+}
+
+int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *to) {
+ assert(f);
+ assert(f->header);
+ assert(from || to);
+
+ if (from) {
+ if (f->header->head_entry_realtime == 0)
+ return -ENOENT;
+
+ *from = le64toh(f->header->head_entry_realtime);
+ }
+
+ if (to) {
+ if (f->header->tail_entry_realtime == 0)
+ return -ENOENT;
+
+ *to = le64toh(f->header->tail_entry_realtime);
+ }
+
+ return 1;
+}
+
+int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot_id, usec_t *from, usec_t *to) {
+ Object *o;
+ uint64_t p;
+ int r;
+
+ assert(f);
+ assert(from || to);
+
+ r = find_data_object_by_boot_id(f, boot_id, &o, &p);
+ if (r <= 0)
+ return r;
+
+ if (le64toh(o->data.n_entries) <= 0)
+ return 0;
+
+ if (from) {
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, le64toh(o->data.entry_offset), &o);
+ if (r < 0)
+ return r;
+
+ *from = le64toh(o->entry.monotonic);
+ }
+
+ if (to) {
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ r = generic_array_get_plus_one(f,
+ le64toh(o->data.entry_offset),
+ le64toh(o->data.entry_array_offset),
+ le64toh(o->data.n_entries)-1,
+ &o, NULL);
+ if (r <= 0)
+ return r;
+
+ *to = le64toh(o->entry.monotonic);
+ }
+
+ return 1;
+}
+
+bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec) {
+ assert(f);
+ assert(f->header);
+
+ /* If we gained new header fields we gained new features,
+ * hence suggest a rotation */
+ if (le64toh(f->header->header_size) < sizeof(Header)) {
+ log_debug("%s uses an outdated header, suggesting rotation.", f->path);
+ return true;
+ }
+
+ /* Let's check if the hash tables grew over a certain fill
+ * level (75%, borrowing this value from Java's hash table
+ * implementation), and if so suggest a rotation. To calculate
+ * the fill level we need the n_data field, which only exists
+ * in newer versions. */
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_data))
+ if (le64toh(f->header->n_data) * 4ULL > (le64toh(f->header->data_hash_table_size) / sizeof(HashItem)) * 3ULL) {
+ log_debug("Data hash table of %s has a fill level at %.1f (%"PRIu64" of %"PRIu64" items, %llu file size, %"PRIu64" bytes per hash table item), suggesting rotation.",
+ f->path,
+ 100.0 * (double) le64toh(f->header->n_data) / ((double) (le64toh(f->header->data_hash_table_size) / sizeof(HashItem))),
+ le64toh(f->header->n_data),
+ le64toh(f->header->data_hash_table_size) / sizeof(HashItem),
+ (unsigned long long) f->last_stat.st_size,
+ f->last_stat.st_size / le64toh(f->header->n_data));
+ return true;
+ }
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_fields))
+ if (le64toh(f->header->n_fields) * 4ULL > (le64toh(f->header->field_hash_table_size) / sizeof(HashItem)) * 3ULL) {
+ log_debug("Field hash table of %s has a fill level at %.1f (%"PRIu64" of %"PRIu64" items), suggesting rotation.",
+ f->path,
+ 100.0 * (double) le64toh(f->header->n_fields) / ((double) (le64toh(f->header->field_hash_table_size) / sizeof(HashItem))),
+ le64toh(f->header->n_fields),
+ le64toh(f->header->field_hash_table_size) / sizeof(HashItem));
+ return true;
+ }
+
+ /* Are the data objects properly indexed by field objects? */
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_data) &&
+ JOURNAL_HEADER_CONTAINS(f->header, n_fields) &&
+ le64toh(f->header->n_data) > 0 &&
+ le64toh(f->header->n_fields) == 0)
+ return true;
+
+ if (max_file_usec > 0) {
+ usec_t t, h;
+
+ h = le64toh(f->header->head_entry_realtime);
+ t = now(CLOCK_REALTIME);
+
+ if (h > 0 && t > h + max_file_usec)
+ return true;
+ }
+
+ return false;
+}
diff --git a/src/libsystemd/src/sd-journal/journal-file.h b/src/libsystemd/src/sd-journal/journal-file.h
new file mode 100644
index 0000000000..daafc8ae0d
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-file.h
@@ -0,0 +1,266 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+
+#ifdef HAVE_GCRYPT
+#include <gcrypt.h>
+#endif
+
+#include <systemd/sd-event.h>
+#include <systemd/sd-id128.h>
+
+#include "basic/hashmap.h"
+#include "basic/macro.h"
+#include "basic/sparse-endian.h"
+
+#include "journal-def.h"
+#include "mmap-cache.h"
+
+typedef struct JournalMetrics {
+ /* For all these: -1 means "pick automatically", and 0 means "no limit enforced" */
+ uint64_t max_size; /* how large journal files grow at max */
+ uint64_t min_size; /* how large journal files grow at least */
+ uint64_t max_use; /* how much disk space to use in total at max, keep_free permitting */
+ uint64_t min_use; /* how much disk space to use in total at least, even if keep_free says not to */
+ uint64_t keep_free; /* how much to keep free on disk */
+ uint64_t n_max_files; /* how many files to keep around at max */
+} JournalMetrics;
+
+typedef enum direction {
+ DIRECTION_UP,
+ DIRECTION_DOWN
+} direction_t;
+
+typedef enum LocationType {
+ /* The first and last entries, resp. */
+ LOCATION_HEAD,
+ LOCATION_TAIL,
+
+ /* We already read the entry we currently point to, and the
+ * next one to read should probably not be this one again. */
+ LOCATION_DISCRETE,
+
+ /* We should seek to the precise location specified, and
+ * return it, as we haven't read it yet. */
+ LOCATION_SEEK
+} LocationType;
+
+typedef enum OfflineState {
+ OFFLINE_JOINED,
+ OFFLINE_SYNCING,
+ OFFLINE_OFFLINING,
+ OFFLINE_CANCEL,
+ OFFLINE_AGAIN_FROM_SYNCING,
+ OFFLINE_AGAIN_FROM_OFFLINING,
+ OFFLINE_DONE
+} OfflineState;
+
+typedef struct JournalFile {
+ int fd;
+
+ mode_t mode;
+
+ int flags;
+ int prot;
+ bool writable:1;
+ bool compress_xz:1;
+ bool compress_lz4:1;
+ bool seal:1;
+ bool defrag_on_close:1;
+ bool close_fd:1;
+ bool archive:1;
+
+ bool tail_entry_monotonic_valid:1;
+
+ direction_t last_direction;
+ LocationType location_type;
+ uint64_t last_n_entries;
+
+ char *path;
+ struct stat last_stat;
+ usec_t last_stat_usec;
+
+ Header *header;
+ HashItem *data_hash_table;
+ HashItem *field_hash_table;
+
+ uint64_t current_offset;
+ uint64_t current_seqnum;
+ uint64_t current_realtime;
+ uint64_t current_monotonic;
+ sd_id128_t current_boot_id;
+ uint64_t current_xor_hash;
+
+ JournalMetrics metrics;
+ MMapCache *mmap;
+
+ sd_event_source *post_change_timer;
+ usec_t post_change_timer_period;
+
+ OrderedHashmap *chain_cache;
+
+ pthread_t offline_thread;
+ volatile OfflineState offline_state;
+
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ void *compress_buffer;
+ size_t compress_buffer_size;
+#endif
+
+#ifdef HAVE_GCRYPT
+ gcry_md_hd_t hmac;
+ bool hmac_running;
+
+ FSSHeader *fss_file;
+ size_t fss_file_size;
+
+ uint64_t fss_start_usec;
+ uint64_t fss_interval_usec;
+
+ void *fsprg_state;
+ size_t fsprg_state_size;
+
+ void *fsprg_seed;
+ size_t fsprg_seed_size;
+#endif
+} JournalFile;
+
+int journal_file_open(
+ int fd,
+ const char *fname,
+ int flags,
+ mode_t mode,
+ bool compress,
+ bool seal,
+ JournalMetrics *metrics,
+ MMapCache *mmap_cache,
+ Set *deferred_closes,
+ JournalFile *template,
+ JournalFile **ret);
+
+int journal_file_set_offline(JournalFile *f, bool wait);
+bool journal_file_is_offlining(JournalFile *f);
+JournalFile* journal_file_close(JournalFile *j);
+void journal_file_close_set(Set *s);
+
+int journal_file_open_reliably(
+ const char *fname,
+ int flags,
+ mode_t mode,
+ bool compress,
+ bool seal,
+ JournalMetrics *metrics,
+ MMapCache *mmap_cache,
+ Set *deferred_closes,
+ JournalFile *template,
+ JournalFile **ret);
+
+#define ALIGN64(x) (((x) + 7ULL) & ~7ULL)
+#define VALID64(x) (((x) & 7ULL) == 0ULL)
+
+/* Use six characters to cover the offsets common in smallish journal
+ * files without adding too many zeros. */
+#define OFSfmt "%06"PRIx64
+
+static inline bool VALID_REALTIME(uint64_t u) {
+ /* This considers timestamps until the year 3112 valid. That should be plenty room... */
+ return u > 0 && u < (1ULL << 55);
+}
+
+static inline bool VALID_MONOTONIC(uint64_t u) {
+ /* This considers timestamps until 1142 years of runtime valid. */
+ return u < (1ULL << 55);
+}
+
+static inline bool VALID_EPOCH(uint64_t u) {
+ /* This allows changing the key for 1142 years, every usec. */
+ return u < (1ULL << 55);
+}
+
+#define JOURNAL_HEADER_CONTAINS(h, field) \
+ (le64toh((h)->header_size) >= offsetof(Header, field) + sizeof((h)->field))
+
+#define JOURNAL_HEADER_SEALED(h) \
+ (!!(le32toh((h)->compatible_flags) & HEADER_COMPATIBLE_SEALED))
+
+#define JOURNAL_HEADER_COMPRESSED_XZ(h) \
+ (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED_XZ))
+
+#define JOURNAL_HEADER_COMPRESSED_LZ4(h) \
+ (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED_LZ4))
+
+int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset, Object **ret);
+
+uint64_t journal_file_entry_n_items(Object *o) _pure_;
+uint64_t journal_file_entry_array_n_items(Object *o) _pure_;
+uint64_t journal_file_hash_table_n_items(Object *o) _pure_;
+
+int journal_file_append_object(JournalFile *f, ObjectType type, uint64_t size, Object **ret, uint64_t *offset);
+int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqno, Object **ret, uint64_t *offset);
+
+int journal_file_find_data_object(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset);
+int journal_file_find_data_object_with_hash(JournalFile *f, const void *data, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset);
+
+int journal_file_find_field_object(JournalFile *f, const void *field, uint64_t size, Object **ret, uint64_t *offset);
+int journal_file_find_field_object_with_hash(JournalFile *f, const void *field, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset);
+
+void journal_file_reset_location(JournalFile *f);
+void journal_file_save_location(JournalFile *f, Object *o, uint64_t offset);
+int journal_file_compare_locations(JournalFile *af, JournalFile *bf);
+int journal_file_next_entry(JournalFile *f, uint64_t p, direction_t direction, Object **ret, uint64_t *offset);
+
+int journal_file_next_entry_for_data(JournalFile *f, Object *o, uint64_t p, uint64_t data_offset, direction_t direction, Object **ret, uint64_t *offset);
+
+int journal_file_move_to_entry_by_seqnum(JournalFile *f, uint64_t seqnum, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_realtime(JournalFile *f, uint64_t realtime, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_monotonic(JournalFile *f, sd_id128_t boot_id, uint64_t monotonic, direction_t direction, Object **ret, uint64_t *offset);
+
+int journal_file_move_to_entry_by_offset_for_data(JournalFile *f, uint64_t data_offset, uint64_t p, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_seqnum_for_data(JournalFile *f, uint64_t data_offset, uint64_t seqnum, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_realtime_for_data(JournalFile *f, uint64_t data_offset, uint64_t realtime, direction_t direction, Object **ret, uint64_t *offset);
+int journal_file_move_to_entry_by_monotonic_for_data(JournalFile *f, uint64_t data_offset, sd_id128_t boot_id, uint64_t monotonic, direction_t direction, Object **ret, uint64_t *offset);
+
+int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint64_t p, uint64_t *seqnum, Object **ret, uint64_t *offset);
+
+void journal_file_dump(JournalFile *f);
+void journal_file_print_header(JournalFile *f);
+
+int journal_file_rotate(JournalFile **f, bool compress, bool seal, Set *deferred_closes);
+
+void journal_file_post_change(JournalFile *f);
+int journal_file_enable_post_change_timer(JournalFile *f, sd_event *e, usec_t t);
+
+void journal_reset_metrics(JournalMetrics *m);
+void journal_default_metrics(JournalMetrics *m, int fd);
+
+int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *to);
+int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot, usec_t *from, usec_t *to);
+
+bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec);
+
+int journal_file_map_data_hash_table(JournalFile *f);
+int journal_file_map_field_hash_table(JournalFile *f);
+
+static inline bool JOURNAL_FILE_COMPRESS(JournalFile *f) {
+ assert(f);
+ return f->compress_xz || f->compress_lz4;
+}
diff --git a/src/libsystemd/src/sd-journal/journal-internal.h b/src/libsystemd/src/sd-journal/journal-internal.h
new file mode 100644
index 0000000000..e249a8b979
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-internal.h
@@ -0,0 +1,144 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include <systemd/sd-id128.h>
+#include <systemd/sd-journal.h>
+
+#include "basic/hashmap.h"
+#include "basic/list.h"
+#include "basic/set.h"
+
+#include "journal-def.h"
+#include "journal-file.h"
+
+typedef struct Match Match;
+typedef struct Location Location;
+typedef struct Directory Directory;
+
+typedef enum MatchType {
+ MATCH_DISCRETE,
+ MATCH_OR_TERM,
+ MATCH_AND_TERM
+} MatchType;
+
+struct Match {
+ MatchType type;
+ Match *parent;
+ LIST_FIELDS(Match, matches);
+
+ /* For concrete matches */
+ char *data;
+ size_t size;
+ le64_t le_hash;
+
+ /* For terms */
+ LIST_HEAD(Match, matches);
+};
+
+struct Location {
+ LocationType type;
+
+ bool seqnum_set;
+ bool realtime_set;
+ bool monotonic_set;
+ bool xor_hash_set;
+
+ uint64_t seqnum;
+ sd_id128_t seqnum_id;
+
+ uint64_t realtime;
+
+ uint64_t monotonic;
+ sd_id128_t boot_id;
+
+ uint64_t xor_hash;
+};
+
+struct Directory {
+ char *path;
+ int wd;
+ bool is_root;
+};
+
+struct sd_journal {
+ int toplevel_fd;
+
+ char *path;
+ char *prefix;
+
+ OrderedHashmap *files;
+ MMapCache *mmap;
+
+ Location current_location;
+
+ JournalFile *current_file;
+ uint64_t current_field;
+
+ Match *level0, *level1, *level2;
+
+ pid_t original_pid;
+
+ int inotify_fd;
+ unsigned current_invalidate_counter, last_invalidate_counter;
+ usec_t last_process_usec;
+
+ /* Iterating through unique fields and their data values */
+ char *unique_field;
+ JournalFile *unique_file;
+ uint64_t unique_offset;
+
+ /* Iterating through known fields */
+ JournalFile *fields_file;
+ uint64_t fields_offset;
+ uint64_t fields_hash_table_index;
+ char *fields_buffer;
+ size_t fields_buffer_allocated;
+
+ int flags;
+
+ bool on_network:1;
+ bool no_new_files:1;
+ bool no_inotify:1;
+ bool unique_file_lost:1; /* File we were iterating over got
+ removed, and there were no more
+ files, so sd_j_enumerate_unique
+ will return a value equal to 0. */
+ bool fields_file_lost:1;
+ bool has_runtime_files:1;
+ bool has_persistent_files:1;
+
+ size_t data_threshold;
+
+ Hashmap *directories_by_path;
+ Hashmap *directories_by_wd;
+
+ Hashmap *errors;
+};
+
+char *journal_make_match_string(sd_journal *j);
+void journal_print_header(sd_journal *j);
+
+#define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \
+ for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; )
diff --git a/src/libsystemd/src/sd-journal/journal-send.c b/src/libsystemd/src/sd-journal/journal-send.c
new file mode 100644
index 0000000000..7197758289
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-send.c
@@ -0,0 +1,559 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <printf.h>
+#include <stddef.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#define SD_JOURNAL_SUPPRESS_LOCATION
+
+#include <systemd/sd-journal.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/io-util.h"
+#include "basic/memfd-util.h"
+#include "basic/socket-util.h"
+#include "basic/stdio-util.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
+
+#define SNDBUF_SIZE (8*1024*1024)
+
+#define ALLOCA_CODE_FUNC(f, func) \
+ do { \
+ size_t _fl; \
+ const char *_func = (func); \
+ char **_f = &(f); \
+ _fl = strlen(_func) + 1; \
+ *_f = alloca(_fl + 10); \
+ memcpy(*_f, "CODE_FUNC=", 10); \
+ memcpy(*_f + 10, _func, _fl); \
+ } while (false)
+
+/* We open a single fd, and we'll share it with the current process,
+ * all its threads, and all its subprocesses. This means we need to
+ * initialize it atomically, and need to operate on it atomically
+ * never assuming we are the only user */
+
+static int journal_fd(void) {
+ int fd;
+ static int fd_plus_one = 0;
+
+retry:
+ if (fd_plus_one > 0)
+ return fd_plus_one - 1;
+
+ fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
+ if (fd < 0)
+ return -errno;
+
+ fd_inc_sndbuf(fd, SNDBUF_SIZE);
+
+ if (!__sync_bool_compare_and_swap(&fd_plus_one, 0, fd+1)) {
+ safe_close(fd);
+ goto retry;
+ }
+
+ return fd;
+}
+
+_public_ int sd_journal_print(int priority, const char *format, ...) {
+ int r;
+ va_list ap;
+
+ va_start(ap, format);
+ r = sd_journal_printv(priority, format, ap);
+ va_end(ap);
+
+ return r;
+}
+
+_public_ int sd_journal_printv(int priority, const char *format, va_list ap) {
+
+ /* FIXME: Instead of limiting things to LINE_MAX we could do a
+ C99 variable-length array on the stack here in a loop. */
+
+ char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1];
+ struct iovec iov[2];
+
+ assert_return(priority >= 0, -EINVAL);
+ assert_return(priority <= 7, -EINVAL);
+ assert_return(format, -EINVAL);
+
+ xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK);
+
+ memcpy(buffer, "MESSAGE=", 8);
+ vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap);
+
+ zero(iov);
+ IOVEC_SET_STRING(iov[0], buffer);
+ IOVEC_SET_STRING(iov[1], p);
+
+ return sd_journal_sendv(iov, 2);
+}
+
+_printf_(1, 0) static int fill_iovec_sprintf(const char *format, va_list ap, int extra, struct iovec **_iov) {
+ PROTECT_ERRNO;
+ int r, n = 0, i = 0, j;
+ struct iovec *iov = NULL;
+
+ assert(_iov);
+
+ if (extra > 0) {
+ n = MAX(extra * 2, extra + 4);
+ iov = malloc0(n * sizeof(struct iovec));
+ if (!iov) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ i = extra;
+ }
+
+ while (format) {
+ struct iovec *c;
+ char *buffer;
+ va_list aq;
+
+ if (i >= n) {
+ n = MAX(i*2, 4);
+ c = realloc(iov, n * sizeof(struct iovec));
+ if (!c) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ iov = c;
+ }
+
+ va_copy(aq, ap);
+ if (vasprintf(&buffer, format, aq) < 0) {
+ va_end(aq);
+ r = -ENOMEM;
+ goto fail;
+ }
+ va_end(aq);
+
+ VA_FORMAT_ADVANCE(format, ap);
+
+ IOVEC_SET_STRING(iov[i++], buffer);
+
+ format = va_arg(ap, char *);
+ }
+
+ *_iov = iov;
+
+ return i;
+
+fail:
+ for (j = 0; j < i; j++)
+ free(iov[j].iov_base);
+
+ free(iov);
+
+ return r;
+}
+
+_public_ int sd_journal_send(const char *format, ...) {
+ int r, i, j;
+ va_list ap;
+ struct iovec *iov = NULL;
+
+ va_start(ap, format);
+ i = fill_iovec_sprintf(format, ap, 0, &iov);
+ va_end(ap);
+
+ if (_unlikely_(i < 0)) {
+ r = i;
+ goto finish;
+ }
+
+ r = sd_journal_sendv(iov, i);
+
+finish:
+ for (j = 0; j < i; j++)
+ free(iov[j].iov_base);
+
+ free(iov);
+
+ return r;
+}
+
+_public_ int sd_journal_sendv(const struct iovec *iov, int n) {
+ PROTECT_ERRNO;
+ int fd, r;
+ _cleanup_close_ int buffer_fd = -1;
+ struct iovec *w;
+ uint64_t *l;
+ int i, j = 0;
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/journal/socket",
+ };
+ struct msghdr mh = {
+ .msg_name = (struct sockaddr*) &sa.sa,
+ .msg_namelen = SOCKADDR_UN_LEN(sa.un),
+ };
+ ssize_t k;
+ bool have_syslog_identifier = false;
+ bool seal = true;
+
+ assert_return(iov, -EINVAL);
+ assert_return(n > 0, -EINVAL);
+
+ w = newa(struct iovec, n * 5 + 3);
+ l = newa(uint64_t, n);
+
+ for (i = 0; i < n; i++) {
+ char *c, *nl;
+
+ if (_unlikely_(!iov[i].iov_base || iov[i].iov_len <= 1))
+ return -EINVAL;
+
+ c = memchr(iov[i].iov_base, '=', iov[i].iov_len);
+ if (_unlikely_(!c || c == iov[i].iov_base))
+ return -EINVAL;
+
+ have_syslog_identifier = have_syslog_identifier ||
+ (c == (char *) iov[i].iov_base + 17 &&
+ startswith(iov[i].iov_base, "SYSLOG_IDENTIFIER"));
+
+ nl = memchr(iov[i].iov_base, '\n', iov[i].iov_len);
+ if (nl) {
+ if (_unlikely_(nl < c))
+ return -EINVAL;
+
+ /* Already includes a newline? Bummer, then
+ * let's write the variable name, then a
+ * newline, then the size (64bit LE), followed
+ * by the data and a final newline */
+
+ w[j].iov_base = iov[i].iov_base;
+ w[j].iov_len = c - (char*) iov[i].iov_base;
+ j++;
+
+ IOVEC_SET_STRING(w[j++], "\n");
+
+ l[i] = htole64(iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1);
+ w[j].iov_base = &l[i];
+ w[j].iov_len = sizeof(uint64_t);
+ j++;
+
+ w[j].iov_base = c + 1;
+ w[j].iov_len = iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1;
+ j++;
+
+ } else
+ /* Nothing special? Then just add the line and
+ * append a newline */
+ w[j++] = iov[i];
+
+ IOVEC_SET_STRING(w[j++], "\n");
+ }
+
+ if (!have_syslog_identifier &&
+ string_is_safe(program_invocation_short_name)) {
+
+ /* Implicitly add program_invocation_short_name, if it
+ * is not set explicitly. We only do this for
+ * program_invocation_short_name, and nothing else
+ * since everything else is much nicer to retrieve
+ * from the outside. */
+
+ IOVEC_SET_STRING(w[j++], "SYSLOG_IDENTIFIER=");
+ IOVEC_SET_STRING(w[j++], program_invocation_short_name);
+ IOVEC_SET_STRING(w[j++], "\n");
+ }
+
+ fd = journal_fd();
+ if (_unlikely_(fd < 0))
+ return fd;
+
+ mh.msg_iov = w;
+ mh.msg_iovlen = j;
+
+ k = sendmsg(fd, &mh, MSG_NOSIGNAL);
+ if (k >= 0)
+ return 0;
+
+ /* Fail silently if the journal is not available */
+ if (errno == ENOENT)
+ return 0;
+
+ if (errno != EMSGSIZE && errno != ENOBUFS)
+ return -errno;
+
+ /* Message doesn't fit... Let's dump the data in a memfd or
+ * temporary file and just pass a file descriptor of it to the
+ * other side.
+ *
+ * For the temporary files we use /dev/shm instead of /tmp
+ * here, since we want this to be a tmpfs, and one that is
+ * available from early boot on and where unprivileged users
+ * can create files. */
+ buffer_fd = memfd_new(NULL);
+ if (buffer_fd < 0) {
+ if (buffer_fd == -ENOSYS) {
+ buffer_fd = open_tmpfile_unlinkable("/dev/shm", O_RDWR | O_CLOEXEC);
+ if (buffer_fd < 0)
+ return buffer_fd;
+
+ seal = false;
+ } else
+ return buffer_fd;
+ }
+
+ n = writev(buffer_fd, w, j);
+ if (n < 0)
+ return -errno;
+
+ if (seal) {
+ r = memfd_set_sealed(buffer_fd);
+ if (r < 0)
+ return r;
+ }
+
+ r = send_one_fd_sa(fd, buffer_fd, mh.msg_name, mh.msg_namelen, 0);
+ if (r == -ENOENT)
+ /* Fail silently if the journal is not available */
+ return 0;
+ return r;
+}
+
+static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) {
+ PROTECT_ERRNO;
+ size_t n, k;
+
+ k = isempty(message) ? 0 : strlen(message) + 2;
+ n = 8 + k + 256 + 1;
+
+ for (;;) {
+ char buffer[n];
+ char* j;
+
+ errno = 0;
+ j = strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k);
+ if (errno == 0) {
+ char error[sizeof("ERRNO=")-1 + DECIMAL_STR_MAX(int) + 1];
+
+ if (j != buffer + 8 + k)
+ memmove(buffer + 8 + k, j, strlen(j)+1);
+
+ memcpy(buffer, "MESSAGE=", 8);
+
+ if (k > 0) {
+ memcpy(buffer + 8, message, k - 2);
+ memcpy(buffer + 8 + k - 2, ": ", 2);
+ }
+
+ xsprintf(error, "ERRNO=%i", _saved_errno_);
+
+ assert_cc(3 == LOG_ERR);
+ IOVEC_SET_STRING(iov[skip+0], "PRIORITY=3");
+ IOVEC_SET_STRING(iov[skip+1], buffer);
+ IOVEC_SET_STRING(iov[skip+2], error);
+
+ return sd_journal_sendv(iov, skip + 3);
+ }
+
+ if (errno != ERANGE)
+ return -errno;
+
+ n *= 2;
+ }
+}
+
+_public_ int sd_journal_perror(const char *message) {
+ struct iovec iovec[3];
+
+ return fill_iovec_perror_and_send(message, 0, iovec);
+}
+
+_public_ int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix) {
+ static const union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ .un.sun_path = "/run/systemd/journal/stdout",
+ };
+ _cleanup_close_ int fd = -1;
+ char *header;
+ size_t l;
+ int r;
+
+ assert_return(priority >= 0, -EINVAL);
+ assert_return(priority <= 7, -EINVAL);
+
+ fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
+ if (fd < 0)
+ return -errno;
+
+ r = connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un));
+ if (r < 0)
+ return -errno;
+
+ if (shutdown(fd, SHUT_RD) < 0)
+ return -errno;
+
+ fd_inc_sndbuf(fd, SNDBUF_SIZE);
+
+ if (!identifier)
+ identifier = "";
+
+ l = strlen(identifier);
+ header = alloca(l + 1 + 1 + 2 + 2 + 2 + 2 + 2);
+
+ memcpy(header, identifier, l);
+ header[l++] = '\n';
+ header[l++] = '\n'; /* unit id */
+ header[l++] = '0' + priority;
+ header[l++] = '\n';
+ header[l++] = '0' + !!level_prefix;
+ header[l++] = '\n';
+ header[l++] = '0';
+ header[l++] = '\n';
+ header[l++] = '0';
+ header[l++] = '\n';
+ header[l++] = '0';
+ header[l++] = '\n';
+
+ r = loop_write(fd, header, l, false);
+ if (r < 0)
+ return r;
+
+ r = fd;
+ fd = -1;
+ return r;
+}
+
+_public_ int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) {
+ int r;
+ va_list ap;
+
+ va_start(ap, format);
+ r = sd_journal_printv_with_location(priority, file, line, func, format, ap);
+ va_end(ap);
+
+ return r;
+}
+
+_public_ int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) {
+ char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1];
+ struct iovec iov[5];
+ char *f;
+
+ assert_return(priority >= 0, -EINVAL);
+ assert_return(priority <= 7, -EINVAL);
+ assert_return(format, -EINVAL);
+
+ xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK);
+
+ memcpy(buffer, "MESSAGE=", 8);
+ vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap);
+
+ /* func is initialized from __func__ which is not a macro, but
+ * a static const char[], hence cannot easily be prefixed with
+ * CODE_FUNC=, hence let's do it manually here. */
+ ALLOCA_CODE_FUNC(f, func);
+
+ zero(iov);
+ IOVEC_SET_STRING(iov[0], buffer);
+ IOVEC_SET_STRING(iov[1], p);
+ IOVEC_SET_STRING(iov[2], file);
+ IOVEC_SET_STRING(iov[3], line);
+ IOVEC_SET_STRING(iov[4], f);
+
+ return sd_journal_sendv(iov, ELEMENTSOF(iov));
+}
+
+_public_ int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) {
+ int r, i, j;
+ va_list ap;
+ struct iovec *iov = NULL;
+ char *f;
+
+ va_start(ap, format);
+ i = fill_iovec_sprintf(format, ap, 3, &iov);
+ va_end(ap);
+
+ if (_unlikely_(i < 0)) {
+ r = i;
+ goto finish;
+ }
+
+ ALLOCA_CODE_FUNC(f, func);
+
+ IOVEC_SET_STRING(iov[0], file);
+ IOVEC_SET_STRING(iov[1], line);
+ IOVEC_SET_STRING(iov[2], f);
+
+ r = sd_journal_sendv(iov, i);
+
+finish:
+ for (j = 3; j < i; j++)
+ free(iov[j].iov_base);
+
+ free(iov);
+
+ return r;
+}
+
+_public_ int sd_journal_sendv_with_location(
+ const char *file, const char *line,
+ const char *func,
+ const struct iovec *iov, int n) {
+
+ struct iovec *niov;
+ char *f;
+
+ assert_return(iov, -EINVAL);
+ assert_return(n > 0, -EINVAL);
+
+ niov = alloca(sizeof(struct iovec) * (n + 3));
+ memcpy(niov, iov, sizeof(struct iovec) * n);
+
+ ALLOCA_CODE_FUNC(f, func);
+
+ IOVEC_SET_STRING(niov[n++], file);
+ IOVEC_SET_STRING(niov[n++], line);
+ IOVEC_SET_STRING(niov[n++], f);
+
+ return sd_journal_sendv(niov, n);
+}
+
+_public_ int sd_journal_perror_with_location(
+ const char *file, const char *line,
+ const char *func,
+ const char *message) {
+
+ struct iovec iov[6];
+ char *f;
+
+ ALLOCA_CODE_FUNC(f, func);
+
+ IOVEC_SET_STRING(iov[0], file);
+ IOVEC_SET_STRING(iov[1], line);
+ IOVEC_SET_STRING(iov[2], f);
+
+ return fill_iovec_perror_and_send(message, 3, iov);
+}
diff --git a/src/libsystemd/src/sd-journal/journal-vacuum.c b/src/libsystemd/src/sd-journal/journal-vacuum.c
new file mode 100644
index 0000000000..a3ebf9b029
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-vacuum.c
@@ -0,0 +1,350 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <systemd/sd-id128.h>
+
+#include "basic/alloc-util.h"
+#include "basic/dirent-util.h"
+#include "basic/fd-util.h"
+#include "basic/parse-util.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
+#include "basic/xattr-util.h"
+
+#include "journal-def.h"
+#include "journal-file.h"
+#include "journal-vacuum.h"
+
+struct vacuum_info {
+ uint64_t usage;
+ char *filename;
+
+ uint64_t realtime;
+
+ sd_id128_t seqnum_id;
+ uint64_t seqnum;
+ bool have_seqnum;
+};
+
+static int vacuum_compare(const void *_a, const void *_b) {
+ const struct vacuum_info *a, *b;
+
+ a = _a;
+ b = _b;
+
+ if (a->have_seqnum && b->have_seqnum &&
+ sd_id128_equal(a->seqnum_id, b->seqnum_id)) {
+ if (a->seqnum < b->seqnum)
+ return -1;
+ else if (a->seqnum > b->seqnum)
+ return 1;
+ else
+ return 0;
+ }
+
+ if (a->realtime < b->realtime)
+ return -1;
+ else if (a->realtime > b->realtime)
+ return 1;
+ else if (a->have_seqnum && b->have_seqnum)
+ return memcmp(&a->seqnum_id, &b->seqnum_id, 16);
+ else
+ return strcmp(a->filename, b->filename);
+}
+
+static void patch_realtime(
+ int fd,
+ const char *fn,
+ const struct stat *st,
+ unsigned long long *realtime) {
+
+ usec_t x, crtime = 0;
+
+ /* The timestamp was determined by the file name, but let's
+ * see if the file might actually be older than the file name
+ * suggested... */
+
+ assert(fd >= 0);
+ assert(fn);
+ assert(st);
+ assert(realtime);
+
+ x = timespec_load(&st->st_ctim);
+ if (x > 0 && x != USEC_INFINITY && x < *realtime)
+ *realtime = x;
+
+ x = timespec_load(&st->st_atim);
+ if (x > 0 && x != USEC_INFINITY && x < *realtime)
+ *realtime = x;
+
+ x = timespec_load(&st->st_mtim);
+ if (x > 0 && x != USEC_INFINITY && x < *realtime)
+ *realtime = x;
+
+ /* Let's read the original creation time, if possible. Ideally
+ * we'd just query the creation time the FS might provide, but
+ * unfortunately there's currently no sane API to query
+ * it. Hence let's implement this manually... */
+
+ if (fd_getcrtime_at(fd, fn, &crtime, 0) >= 0) {
+ if (crtime < *realtime)
+ *realtime = crtime;
+ }
+}
+
+static int journal_file_empty(int dir_fd, const char *name) {
+ _cleanup_close_ int fd;
+ struct stat st;
+ le64_t n_entries;
+ ssize_t n;
+
+ fd = openat(dir_fd, name, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK|O_NOATIME);
+ if (fd < 0) {
+ /* Maybe failed due to O_NOATIME and lack of privileges? */
+ fd = openat(dir_fd, name, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NONBLOCK);
+ if (fd < 0)
+ return -errno;
+ }
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+
+ /* If an offline file doesn't even have a header we consider it empty */
+ if (st.st_size < (off_t) sizeof(Header))
+ return 1;
+
+ /* If the number of entries is empty, we consider it empty, too */
+ n = pread(fd, &n_entries, sizeof(n_entries), offsetof(Header, n_entries));
+ if (n < 0)
+ return -errno;
+ if (n != sizeof(n_entries))
+ return -EIO;
+
+ return le64toh(n_entries) <= 0;
+}
+
+int journal_directory_vacuum(
+ const char *directory,
+ uint64_t max_use,
+ uint64_t n_max_files,
+ usec_t max_retention_usec,
+ usec_t *oldest_usec,
+ bool verbose) {
+
+ _cleanup_closedir_ DIR *d = NULL;
+ struct vacuum_info *list = NULL;
+ unsigned n_list = 0, i, n_active_files = 0;
+ size_t n_allocated = 0;
+ uint64_t sum = 0, freed = 0;
+ usec_t retention_limit = 0;
+ char sbytes[FORMAT_BYTES_MAX];
+ struct dirent *de;
+ int r;
+
+ assert(directory);
+
+ if (max_use <= 0 && max_retention_usec <= 0 && n_max_files <= 0)
+ return 0;
+
+ if (max_retention_usec > 0) {
+ retention_limit = now(CLOCK_REALTIME);
+ if (retention_limit > max_retention_usec)
+ retention_limit -= max_retention_usec;
+ else
+ max_retention_usec = retention_limit = 0;
+ }
+
+ d = opendir(directory);
+ if (!d)
+ return -errno;
+
+ FOREACH_DIRENT_ALL(de, d, r = -errno; goto finish) {
+
+ unsigned long long seqnum = 0, realtime;
+ _cleanup_free_ char *p = NULL;
+ sd_id128_t seqnum_id;
+ bool have_seqnum;
+ uint64_t size;
+ struct stat st;
+ size_t q;
+
+ if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
+ log_debug_errno(errno, "Failed to stat file %s while vacuuming, ignoring: %m", de->d_name);
+ continue;
+ }
+
+ if (!S_ISREG(st.st_mode))
+ continue;
+
+ q = strlen(de->d_name);
+
+ if (endswith(de->d_name, ".journal")) {
+
+ /* Vacuum archived files. Active files are
+ * left around */
+
+ if (q < 1 + 32 + 1 + 16 + 1 + 16 + 8) {
+ n_active_files++;
+ continue;
+ }
+
+ if (de->d_name[q-8-16-1] != '-' ||
+ de->d_name[q-8-16-1-16-1] != '-' ||
+ de->d_name[q-8-16-1-16-1-32-1] != '@') {
+ n_active_files++;
+ continue;
+ }
+
+ p = strdup(de->d_name);
+ if (!p) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ de->d_name[q-8-16-1-16-1] = 0;
+ if (sd_id128_from_string(de->d_name + q-8-16-1-16-1-32, &seqnum_id) < 0) {
+ n_active_files++;
+ continue;
+ }
+
+ if (sscanf(de->d_name + q-8-16-1-16, "%16llx-%16llx.journal", &seqnum, &realtime) != 2) {
+ n_active_files++;
+ continue;
+ }
+
+ have_seqnum = true;
+
+ } else if (endswith(de->d_name, ".journal~")) {
+ unsigned long long tmp;
+
+ /* Vacuum corrupted files */
+
+ if (q < 1 + 16 + 1 + 16 + 8 + 1) {
+ n_active_files++;
+ continue;
+ }
+
+ if (de->d_name[q-1-8-16-1] != '-' ||
+ de->d_name[q-1-8-16-1-16-1] != '@') {
+ n_active_files++;
+ continue;
+ }
+
+ p = strdup(de->d_name);
+ if (!p) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (sscanf(de->d_name + q-1-8-16-1-16, "%16llx-%16llx.journal~", &realtime, &tmp) != 2) {
+ n_active_files++;
+ continue;
+ }
+
+ have_seqnum = false;
+ } else {
+ /* We do not vacuum unknown files! */
+ log_debug("Not vacuuming unknown file %s.", de->d_name);
+ continue;
+ }
+
+ size = 512UL * (uint64_t) st.st_blocks;
+
+ r = journal_file_empty(dirfd(d), p);
+ if (r < 0) {
+ log_debug_errno(r, "Failed check if %s is empty, ignoring: %m", p);
+ continue;
+ }
+ if (r > 0) {
+ /* Always vacuum empty non-online files. */
+
+ if (unlinkat(dirfd(d), p, 0) >= 0) {
+
+ log_full(verbose ? LOG_INFO : LOG_DEBUG,
+ "Deleted empty archived journal %s/%s (%s).", directory, p, format_bytes(sbytes, sizeof(sbytes), size));
+
+ freed += size;
+ } else if (errno != ENOENT)
+ log_warning_errno(errno, "Failed to delete empty archived journal %s/%s: %m", directory, p);
+
+ continue;
+ }
+
+ patch_realtime(dirfd(d), p, &st, &realtime);
+
+ if (!GREEDY_REALLOC(list, n_allocated, n_list + 1)) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ list[n_list].filename = p;
+ list[n_list].usage = size;
+ list[n_list].seqnum = seqnum;
+ list[n_list].realtime = realtime;
+ list[n_list].seqnum_id = seqnum_id;
+ list[n_list].have_seqnum = have_seqnum;
+ n_list++;
+
+ p = NULL;
+ sum += size;
+ }
+
+ qsort_safe(list, n_list, sizeof(struct vacuum_info), vacuum_compare);
+
+ for (i = 0; i < n_list; i++) {
+ unsigned left;
+
+ left = n_active_files + n_list - i;
+
+ if ((max_retention_usec <= 0 || list[i].realtime >= retention_limit) &&
+ (max_use <= 0 || sum <= max_use) &&
+ (n_max_files <= 0 || left <= n_max_files))
+ break;
+
+ if (unlinkat(dirfd(d), list[i].filename, 0) >= 0) {
+ log_full(verbose ? LOG_INFO : LOG_DEBUG, "Deleted archived journal %s/%s (%s).", directory, list[i].filename, format_bytes(sbytes, sizeof(sbytes), list[i].usage));
+ freed += list[i].usage;
+
+ if (list[i].usage < sum)
+ sum -= list[i].usage;
+ else
+ sum = 0;
+
+ } else if (errno != ENOENT)
+ log_warning_errno(errno, "Failed to delete archived journal %s/%s: %m", directory, list[i].filename);
+ }
+
+ if (oldest_usec && i < n_list && (*oldest_usec == 0 || list[i].realtime < *oldest_usec))
+ *oldest_usec = list[i].realtime;
+
+ r = 0;
+
+finish:
+ for (i = 0; i < n_list; i++)
+ free(list[i].filename);
+ free(list);
+
+ log_full(verbose ? LOG_INFO : LOG_DEBUG, "Vacuuming done, freed %s of archived journals on disk.", format_bytes(sbytes, sizeof(sbytes), freed));
+
+ return r;
+}
diff --git a/src/libsystemd/src/sd-journal/journal-vacuum.h b/src/libsystemd/src/sd-journal/journal-vacuum.h
new file mode 100644
index 0000000000..c7b38e2da9
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-vacuum.h
@@ -0,0 +1,27 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include "basic/time-util.h"
+
+int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t n_max_files, usec_t max_retention_usec, usec_t *oldest_usec, bool verbose);
diff --git a/src/libsystemd/src/sd-journal/journal-verify.c b/src/libsystemd/src/sd-journal/journal-verify.c
new file mode 100644
index 0000000000..f82bdf8518
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-verify.c
@@ -0,0 +1,1295 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+#include <stddef.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/macro.h"
+#include "basic/terminal-util.h"
+#include "basic/util.h"
+
+#include "compress.h"
+#include "journal-authenticate.h"
+#include "journal-def.h"
+#include "journal-file.h"
+#include "journal-verify.h"
+#include "lookup3.h"
+
+static void draw_progress(uint64_t p, usec_t *last_usec) {
+ unsigned n, i, j, k;
+ usec_t z, x;
+
+ if (!on_tty())
+ return;
+
+ z = now(CLOCK_MONOTONIC);
+ x = *last_usec;
+
+ if (x != 0 && x + 40 * USEC_PER_MSEC > z)
+ return;
+
+ *last_usec = z;
+
+ n = (3 * columns()) / 4;
+ j = (n * (unsigned) p) / 65535ULL;
+ k = n - j;
+
+ fputs("\r\x1B[?25l" ANSI_HIGHLIGHT_GREEN, stdout);
+
+ for (i = 0; i < j; i++)
+ fputs("\xe2\x96\x88", stdout);
+
+ fputs(ANSI_NORMAL, stdout);
+
+ for (i = 0; i < k; i++)
+ fputs("\xe2\x96\x91", stdout);
+
+ printf(" %3"PRIu64"%%", 100U * p / 65535U);
+
+ fputs("\r\x1B[?25h", stdout);
+ fflush(stdout);
+}
+
+static uint64_t scale_progress(uint64_t scale, uint64_t p, uint64_t m) {
+
+ /* Calculates scale * p / m, but handles m == 0 safely, and saturates */
+
+ if (p >= m || m == 0)
+ return scale;
+
+ return scale * p / m;
+}
+
+static void flush_progress(void) {
+ unsigned n, i;
+
+ if (!on_tty())
+ return;
+
+ n = (3 * columns()) / 4;
+
+ putchar('\r');
+
+ for (i = 0; i < n + 5; i++)
+ putchar(' ');
+
+ putchar('\r');
+ fflush(stdout);
+}
+
+#define debug(_offset, _fmt, ...) do { \
+ flush_progress(); \
+ log_debug(OFSfmt": " _fmt, _offset, ##__VA_ARGS__); \
+ } while (0)
+
+#define warning(_offset, _fmt, ...) do { \
+ flush_progress(); \
+ log_warning(OFSfmt": " _fmt, _offset, ##__VA_ARGS__); \
+ } while (0)
+
+#define error(_offset, _fmt, ...) do { \
+ flush_progress(); \
+ log_error(OFSfmt": " _fmt, (uint64_t)_offset, ##__VA_ARGS__); \
+ } while (0)
+
+static int journal_file_object_verify(JournalFile *f, uint64_t offset, Object *o) {
+ uint64_t i;
+
+ assert(f);
+ assert(offset);
+ assert(o);
+
+ /* This does various superficial tests about the length an
+ * possible field values. It does not follow any references to
+ * other objects. */
+
+ if ((o->object.flags & OBJECT_COMPRESSED_XZ) &&
+ o->object.type != OBJECT_DATA) {
+ error(offset, "Found compressed object that isn't of type DATA, which is not allowed.");
+ return -EBADMSG;
+ }
+
+ switch (o->object.type) {
+
+ case OBJECT_DATA: {
+ uint64_t h1, h2;
+ int compression, r;
+
+ if (le64toh(o->data.entry_offset) == 0)
+ warning(offset, "Unused data (entry_offset==0)");
+
+ if ((le64toh(o->data.entry_offset) == 0) ^ (le64toh(o->data.n_entries) == 0)) {
+ error(offset, "Bad n_entries: %"PRIu64, o->data.n_entries);
+ return -EBADMSG;
+ }
+
+ if (le64toh(o->object.size) - offsetof(DataObject, payload) <= 0) {
+ error(offset, "Bad object size (<= %zu): %"PRIu64,
+ offsetof(DataObject, payload),
+ le64toh(o->object.size));
+ return -EBADMSG;
+ }
+
+ h1 = le64toh(o->data.hash);
+
+ compression = o->object.flags & OBJECT_COMPRESSION_MASK;
+ if (compression) {
+ _cleanup_free_ void *b = NULL;
+ size_t alloc = 0, b_size;
+
+ r = decompress_blob(compression,
+ o->data.payload,
+ le64toh(o->object.size) - offsetof(Object, data.payload),
+ &b, &alloc, &b_size, 0);
+ if (r < 0) {
+ error(offset, "%s decompression failed: %s",
+ object_compressed_to_string(compression), strerror(-r));
+ return r;
+ }
+
+ h2 = hash64(b, b_size);
+ } else
+ h2 = hash64(o->data.payload, le64toh(o->object.size) - offsetof(Object, data.payload));
+
+ if (h1 != h2) {
+ error(offset, "Invalid hash (%08"PRIx64" vs. %08"PRIx64, h1, h2);
+ return -EBADMSG;
+ }
+
+ if (!VALID64(o->data.next_hash_offset) ||
+ !VALID64(o->data.next_field_offset) ||
+ !VALID64(o->data.entry_offset) ||
+ !VALID64(o->data.entry_array_offset)) {
+ error(offset, "Invalid offset (next_hash_offset="OFSfmt", next_field_offset="OFSfmt", entry_offset="OFSfmt", entry_array_offset="OFSfmt,
+ o->data.next_hash_offset,
+ o->data.next_field_offset,
+ o->data.entry_offset,
+ o->data.entry_array_offset);
+ return -EBADMSG;
+ }
+
+ break;
+ }
+
+ case OBJECT_FIELD:
+ if (le64toh(o->object.size) - offsetof(FieldObject, payload) <= 0) {
+ error(offset,
+ "Bad field size (<= %zu): %"PRIu64,
+ offsetof(FieldObject, payload),
+ le64toh(o->object.size));
+ return -EBADMSG;
+ }
+
+ if (!VALID64(o->field.next_hash_offset) ||
+ !VALID64(o->field.head_data_offset)) {
+ error(offset,
+ "Invalid offset (next_hash_offset="OFSfmt", head_data_offset="OFSfmt,
+ o->field.next_hash_offset,
+ o->field.head_data_offset);
+ return -EBADMSG;
+ }
+ break;
+
+ case OBJECT_ENTRY:
+ if ((le64toh(o->object.size) - offsetof(EntryObject, items)) % sizeof(EntryItem) != 0) {
+ error(offset,
+ "Bad entry size (<= %zu): %"PRIu64,
+ offsetof(EntryObject, items),
+ le64toh(o->object.size));
+ return -EBADMSG;
+ }
+
+ if ((le64toh(o->object.size) - offsetof(EntryObject, items)) / sizeof(EntryItem) <= 0) {
+ error(offset,
+ "Invalid number items in entry: %"PRIu64,
+ (le64toh(o->object.size) - offsetof(EntryObject, items)) / sizeof(EntryItem));
+ return -EBADMSG;
+ }
+
+ if (le64toh(o->entry.seqnum) <= 0) {
+ error(offset,
+ "Invalid entry seqnum: %"PRIx64,
+ le64toh(o->entry.seqnum));
+ return -EBADMSG;
+ }
+
+ if (!VALID_REALTIME(le64toh(o->entry.realtime))) {
+ error(offset,
+ "Invalid entry realtime timestamp: %"PRIu64,
+ le64toh(o->entry.realtime));
+ return -EBADMSG;
+ }
+
+ if (!VALID_MONOTONIC(le64toh(o->entry.monotonic))) {
+ error(offset,
+ "Invalid entry monotonic timestamp: %"PRIu64,
+ le64toh(o->entry.monotonic));
+ return -EBADMSG;
+ }
+
+ for (i = 0; i < journal_file_entry_n_items(o); i++) {
+ if (o->entry.items[i].object_offset == 0 ||
+ !VALID64(o->entry.items[i].object_offset)) {
+ error(offset,
+ "Invalid entry item (%"PRIu64"/%"PRIu64" offset: "OFSfmt,
+ i, journal_file_entry_n_items(o),
+ o->entry.items[i].object_offset);
+ return -EBADMSG;
+ }
+ }
+
+ break;
+
+ case OBJECT_DATA_HASH_TABLE:
+ case OBJECT_FIELD_HASH_TABLE:
+ if ((le64toh(o->object.size) - offsetof(HashTableObject, items)) % sizeof(HashItem) != 0 ||
+ (le64toh(o->object.size) - offsetof(HashTableObject, items)) / sizeof(HashItem) <= 0) {
+ error(offset,
+ "Invalid %s hash table size: %"PRIu64,
+ o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field",
+ le64toh(o->object.size));
+ return -EBADMSG;
+ }
+
+ for (i = 0; i < journal_file_hash_table_n_items(o); i++) {
+ if (o->hash_table.items[i].head_hash_offset != 0 &&
+ !VALID64(le64toh(o->hash_table.items[i].head_hash_offset))) {
+ error(offset,
+ "Invalid %s hash table item (%"PRIu64"/%"PRIu64") head_hash_offset: "OFSfmt,
+ o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field",
+ i, journal_file_hash_table_n_items(o),
+ le64toh(o->hash_table.items[i].head_hash_offset));
+ return -EBADMSG;
+ }
+ if (o->hash_table.items[i].tail_hash_offset != 0 &&
+ !VALID64(le64toh(o->hash_table.items[i].tail_hash_offset))) {
+ error(offset,
+ "Invalid %s hash table item (%"PRIu64"/%"PRIu64") tail_hash_offset: "OFSfmt,
+ o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field",
+ i, journal_file_hash_table_n_items(o),
+ le64toh(o->hash_table.items[i].tail_hash_offset));
+ return -EBADMSG;
+ }
+
+ if ((o->hash_table.items[i].head_hash_offset != 0) !=
+ (o->hash_table.items[i].tail_hash_offset != 0)) {
+ error(offset,
+ "Invalid %s hash table item (%"PRIu64"/%"PRIu64"): head_hash_offset="OFSfmt" tail_hash_offset="OFSfmt,
+ o->object.type == OBJECT_DATA_HASH_TABLE ? "data" : "field",
+ i, journal_file_hash_table_n_items(o),
+ le64toh(o->hash_table.items[i].head_hash_offset),
+ le64toh(o->hash_table.items[i].tail_hash_offset));
+ return -EBADMSG;
+ }
+ }
+
+ break;
+
+ case OBJECT_ENTRY_ARRAY:
+ if ((le64toh(o->object.size) - offsetof(EntryArrayObject, items)) % sizeof(le64_t) != 0 ||
+ (le64toh(o->object.size) - offsetof(EntryArrayObject, items)) / sizeof(le64_t) <= 0) {
+ error(offset,
+ "Invalid object entry array size: %"PRIu64,
+ le64toh(o->object.size));
+ return -EBADMSG;
+ }
+
+ if (!VALID64(o->entry_array.next_entry_array_offset)) {
+ error(offset,
+ "Invalid object entry array next_entry_array_offset: "OFSfmt,
+ o->entry_array.next_entry_array_offset);
+ return -EBADMSG;
+ }
+
+ for (i = 0; i < journal_file_entry_array_n_items(o); i++)
+ if (le64toh(o->entry_array.items[i]) != 0 &&
+ !VALID64(le64toh(o->entry_array.items[i]))) {
+ error(offset,
+ "Invalid object entry array item (%"PRIu64"/%"PRIu64"): "OFSfmt,
+ i, journal_file_entry_array_n_items(o),
+ le64toh(o->entry_array.items[i]));
+ return -EBADMSG;
+ }
+
+ break;
+
+ case OBJECT_TAG:
+ if (le64toh(o->object.size) != sizeof(TagObject)) {
+ error(offset,
+ "Invalid object tag size: %"PRIu64,
+ le64toh(o->object.size));
+ return -EBADMSG;
+ }
+
+ if (!VALID_EPOCH(o->tag.epoch)) {
+ error(offset,
+ "Invalid object tag epoch: %"PRIu64,
+ o->tag.epoch);
+ return -EBADMSG;
+ }
+
+ break;
+ }
+
+ return 0;
+}
+
+static int write_uint64(int fd, uint64_t p) {
+ ssize_t k;
+
+ k = write(fd, &p, sizeof(p));
+ if (k < 0)
+ return -errno;
+ if (k != sizeof(p))
+ return -EIO;
+
+ return 0;
+}
+
+static int contains_uint64(MMapCache *m, int fd, uint64_t n, uint64_t p) {
+ uint64_t a, b;
+ int r;
+
+ assert(m);
+ assert(fd >= 0);
+
+ /* Bisection ... */
+
+ a = 0; b = n;
+ while (a < b) {
+ uint64_t c, *z;
+
+ c = (a + b) / 2;
+
+ r = mmap_cache_get(m, fd, PROT_READ|PROT_WRITE, 0, false, c * sizeof(uint64_t), sizeof(uint64_t), NULL, (void **) &z);
+ if (r < 0)
+ return r;
+
+ if (*z == p)
+ return 1;
+
+ if (a + 1 >= b)
+ return 0;
+
+ if (p < *z)
+ b = c;
+ else
+ a = c;
+ }
+
+ return 0;
+}
+
+static int entry_points_to_data(
+ JournalFile *f,
+ int entry_fd,
+ uint64_t n_entries,
+ uint64_t entry_p,
+ uint64_t data_p) {
+
+ int r;
+ uint64_t i, n, a;
+ Object *o;
+ bool found = false;
+
+ assert(f);
+ assert(entry_fd >= 0);
+
+ if (!contains_uint64(f->mmap, entry_fd, n_entries, entry_p)) {
+ error(data_p, "Data object references invalid entry at "OFSfmt, entry_p);
+ return -EBADMSG;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, entry_p, &o);
+ if (r < 0)
+ return r;
+
+ n = journal_file_entry_n_items(o);
+ for (i = 0; i < n; i++)
+ if (le64toh(o->entry.items[i].object_offset) == data_p) {
+ found = true;
+ break;
+ }
+
+ if (!found) {
+ error(entry_p, "Data object at "OFSfmt" not referenced by linked entry", data_p);
+ return -EBADMSG;
+ }
+
+ /* Check if this entry is also in main entry array. Since the
+ * main entry array has already been verified we can rely on
+ * its consistency. */
+
+ i = 0;
+ n = le64toh(f->header->n_entries);
+ a = le64toh(f->header->entry_array_offset);
+
+ while (i < n) {
+ uint64_t m, u;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+
+ m = journal_file_entry_array_n_items(o);
+ u = MIN(n - i, m);
+
+ if (entry_p <= le64toh(o->entry_array.items[u-1])) {
+ uint64_t x, y, z;
+
+ x = 0;
+ y = u;
+
+ while (x < y) {
+ z = (x + y) / 2;
+
+ if (le64toh(o->entry_array.items[z]) == entry_p)
+ return 0;
+
+ if (x + 1 >= y)
+ break;
+
+ if (entry_p < le64toh(o->entry_array.items[z]))
+ y = z;
+ else
+ x = z;
+ }
+
+ error(entry_p, "Entry object doesn't exist in main entry array");
+ return -EBADMSG;
+ }
+
+ i += u;
+ a = le64toh(o->entry_array.next_entry_array_offset);
+ }
+
+ return 0;
+}
+
+static int verify_data(
+ JournalFile *f,
+ Object *o, uint64_t p,
+ int entry_fd, uint64_t n_entries,
+ int entry_array_fd, uint64_t n_entry_arrays) {
+
+ uint64_t i, n, a, last, q;
+ int r;
+
+ assert(f);
+ assert(o);
+ assert(entry_fd >= 0);
+ assert(entry_array_fd >= 0);
+
+ n = le64toh(o->data.n_entries);
+ a = le64toh(o->data.entry_array_offset);
+
+ /* Entry array means at least two objects */
+ if (a && n < 2) {
+ error(p, "Entry array present (entry_array_offset="OFSfmt", but n_entries=%"PRIu64")", a, n);
+ return -EBADMSG;
+ }
+
+ if (n == 0)
+ return 0;
+
+ /* We already checked that earlier */
+ assert(o->data.entry_offset);
+
+ last = q = le64toh(o->data.entry_offset);
+ r = entry_points_to_data(f, entry_fd, n_entries, q, p);
+ if (r < 0)
+ return r;
+
+ i = 1;
+ while (i < n) {
+ uint64_t next, m, j;
+
+ if (a == 0) {
+ error(p, "Array chain too short");
+ return -EBADMSG;
+ }
+
+ if (!contains_uint64(f->mmap, entry_array_fd, n_entry_arrays, a)) {
+ error(p, "Invalid array offset "OFSfmt, a);
+ return -EBADMSG;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+
+ next = le64toh(o->entry_array.next_entry_array_offset);
+ if (next != 0 && next <= a) {
+ error(p, "Array chain has cycle (jumps back from "OFSfmt" to "OFSfmt")", a, next);
+ return -EBADMSG;
+ }
+
+ m = journal_file_entry_array_n_items(o);
+ for (j = 0; i < n && j < m; i++, j++) {
+
+ q = le64toh(o->entry_array.items[j]);
+ if (q <= last) {
+ error(p, "Data object's entry array not sorted");
+ return -EBADMSG;
+ }
+ last = q;
+
+ r = entry_points_to_data(f, entry_fd, n_entries, q, p);
+ if (r < 0)
+ return r;
+
+ /* Pointer might have moved, reposition */
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+ }
+
+ a = next;
+ }
+
+ return 0;
+}
+
+static int verify_hash_table(
+ JournalFile *f,
+ int data_fd, uint64_t n_data,
+ int entry_fd, uint64_t n_entries,
+ int entry_array_fd, uint64_t n_entry_arrays,
+ usec_t *last_usec,
+ bool show_progress) {
+
+ uint64_t i, n;
+ int r;
+
+ assert(f);
+ assert(data_fd >= 0);
+ assert(entry_fd >= 0);
+ assert(entry_array_fd >= 0);
+ assert(last_usec);
+
+ n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
+ if (n <= 0)
+ return 0;
+
+ r = journal_file_map_data_hash_table(f);
+ if (r < 0)
+ return log_error_errno(r, "Failed to map data hash table: %m");
+
+ for (i = 0; i < n; i++) {
+ uint64_t last = 0, p;
+
+ if (show_progress)
+ draw_progress(0xC000 + scale_progress(0x3FFF, i, n), last_usec);
+
+ p = le64toh(f->data_hash_table[i].head_hash_offset);
+ while (p != 0) {
+ Object *o;
+ uint64_t next;
+
+ if (!contains_uint64(f->mmap, data_fd, n_data, p)) {
+ error(p, "Invalid data object at hash entry %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ next = le64toh(o->data.next_hash_offset);
+ if (next != 0 && next <= p) {
+ error(p, "Hash chain has a cycle in hash entry %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+
+ if (le64toh(o->data.hash) % n != i) {
+ error(p, "Hash value mismatch in hash entry %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+
+ r = verify_data(f, o, p, entry_fd, n_entries, entry_array_fd, n_entry_arrays);
+ if (r < 0)
+ return r;
+
+ last = p;
+ p = next;
+ }
+
+ if (last != le64toh(f->data_hash_table[i].tail_hash_offset)) {
+ error(p, "Tail hash pointer mismatch in hash table");
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+static int data_object_in_hash_table(JournalFile *f, uint64_t hash, uint64_t p) {
+ uint64_t n, h, q;
+ int r;
+ assert(f);
+
+ n = le64toh(f->header->data_hash_table_size) / sizeof(HashItem);
+ if (n <= 0)
+ return 0;
+
+ r = journal_file_map_data_hash_table(f);
+ if (r < 0)
+ return log_error_errno(r, "Failed to map data hash table: %m");
+
+ h = hash % n;
+
+ q = le64toh(f->data_hash_table[h].head_hash_offset);
+ while (q != 0) {
+ Object *o;
+
+ if (p == q)
+ return 1;
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, q, &o);
+ if (r < 0)
+ return r;
+
+ q = le64toh(o->data.next_hash_offset);
+ }
+
+ return 0;
+}
+
+static int verify_entry(
+ JournalFile *f,
+ Object *o, uint64_t p,
+ int data_fd, uint64_t n_data) {
+
+ uint64_t i, n;
+ int r;
+
+ assert(f);
+ assert(o);
+ assert(data_fd >= 0);
+
+ n = journal_file_entry_n_items(o);
+ for (i = 0; i < n; i++) {
+ uint64_t q, h;
+ Object *u;
+
+ q = le64toh(o->entry.items[i].object_offset);
+ h = le64toh(o->entry.items[i].hash);
+
+ if (!contains_uint64(f->mmap, data_fd, n_data, q)) {
+ error(p, "Invalid data object of entry");
+ return -EBADMSG;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_DATA, q, &u);
+ if (r < 0)
+ return r;
+
+ if (le64toh(u->data.hash) != h) {
+ error(p, "Hash mismatch for data object of entry");
+ return -EBADMSG;
+ }
+
+ r = data_object_in_hash_table(f, h, q);
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ error(p, "Data object missing from hash table");
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+static int verify_entry_array(
+ JournalFile *f,
+ int data_fd, uint64_t n_data,
+ int entry_fd, uint64_t n_entries,
+ int entry_array_fd, uint64_t n_entry_arrays,
+ usec_t *last_usec,
+ bool show_progress) {
+
+ uint64_t i = 0, a, n, last = 0;
+ int r;
+
+ assert(f);
+ assert(data_fd >= 0);
+ assert(entry_fd >= 0);
+ assert(entry_array_fd >= 0);
+ assert(last_usec);
+
+ n = le64toh(f->header->n_entries);
+ a = le64toh(f->header->entry_array_offset);
+ while (i < n) {
+ uint64_t next, m, j;
+ Object *o;
+
+ if (show_progress)
+ draw_progress(0x8000 + scale_progress(0x3FFF, i, n), last_usec);
+
+ if (a == 0) {
+ error(a, "Array chain too short at %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+
+ if (!contains_uint64(f->mmap, entry_array_fd, n_entry_arrays, a)) {
+ error(a, "Invalid array %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+
+ next = le64toh(o->entry_array.next_entry_array_offset);
+ if (next != 0 && next <= a) {
+ error(a, "Array chain has cycle at %"PRIu64" of %"PRIu64" (jumps back from to "OFSfmt")", i, n, next);
+ return -EBADMSG;
+ }
+
+ m = journal_file_entry_array_n_items(o);
+ for (j = 0; i < n && j < m; i++, j++) {
+ uint64_t p;
+
+ p = le64toh(o->entry_array.items[j]);
+ if (p <= last) {
+ error(a, "Entry array not sorted at %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+ last = p;
+
+ if (!contains_uint64(f->mmap, entry_fd, n_entries, p)) {
+ error(a, "Invalid array entry at %"PRIu64" of %"PRIu64, i, n);
+ return -EBADMSG;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, p, &o);
+ if (r < 0)
+ return r;
+
+ r = verify_entry(f, o, p, data_fd, n_data);
+ if (r < 0)
+ return r;
+
+ /* Pointer might have moved, reposition */
+ r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, a, &o);
+ if (r < 0)
+ return r;
+ }
+
+ a = next;
+ }
+
+ return 0;
+}
+
+int journal_file_verify(
+ JournalFile *f,
+ const char *key,
+ usec_t *first_contained, usec_t *last_validated, usec_t *last_contained,
+ bool show_progress) {
+ int r;
+ Object *o;
+ uint64_t p = 0, last_epoch = 0, last_tag_realtime = 0, last_sealed_realtime = 0;
+
+ uint64_t entry_seqnum = 0, entry_monotonic = 0, entry_realtime = 0;
+ sd_id128_t entry_boot_id;
+ bool entry_seqnum_set = false, entry_monotonic_set = false, entry_realtime_set = false, found_main_entry_array = false;
+ uint64_t n_weird = 0, n_objects = 0, n_entries = 0, n_data = 0, n_fields = 0, n_data_hash_tables = 0, n_field_hash_tables = 0, n_entry_arrays = 0, n_tags = 0;
+ usec_t last_usec = 0;
+ int data_fd = -1, entry_fd = -1, entry_array_fd = -1;
+ unsigned i;
+ bool found_last = false;
+#ifdef HAVE_GCRYPT
+ uint64_t last_tag = 0;
+#endif
+ assert(f);
+
+ if (key) {
+#ifdef HAVE_GCRYPT
+ r = journal_file_parse_verification_key(f, key);
+ if (r < 0) {
+ log_error("Failed to parse seed.");
+ return r;
+ }
+#else
+ return -EOPNOTSUPP;
+#endif
+ } else if (f->seal)
+ return -ENOKEY;
+
+ data_fd = open_tmpfile_unlinkable("/var/tmp", O_RDWR | O_CLOEXEC);
+ if (data_fd < 0) {
+ r = log_error_errno(data_fd, "Failed to create data file: %m");
+ goto fail;
+ }
+
+ entry_fd = open_tmpfile_unlinkable("/var/tmp", O_RDWR | O_CLOEXEC);
+ if (entry_fd < 0) {
+ r = log_error_errno(entry_fd, "Failed to create entry file: %m");
+ goto fail;
+ }
+
+ entry_array_fd = open_tmpfile_unlinkable("/var/tmp", O_RDWR | O_CLOEXEC);
+ if (entry_array_fd < 0) {
+ r = log_error_errno(entry_array_fd,
+ "Failed to create entry array file: %m");
+ goto fail;
+ }
+
+ if (le32toh(f->header->compatible_flags) & ~HEADER_COMPATIBLE_SUPPORTED) {
+ log_error("Cannot verify file with unknown extensions.");
+ r = -EOPNOTSUPP;
+ goto fail;
+ }
+
+ for (i = 0; i < sizeof(f->header->reserved); i++)
+ if (f->header->reserved[i] != 0) {
+ error(offsetof(Header, reserved[i]), "Reserved field is non-zero");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ /* First iteration: we go through all objects, verify the
+ * superficial structure, headers, hashes. */
+
+ p = le64toh(f->header->header_size);
+ for (;;) {
+ /* Early exit if there are no objects in the file, at all */
+ if (le64toh(f->header->tail_object_offset) == 0)
+ break;
+
+ if (show_progress)
+ draw_progress(scale_progress(0x7FFF, p, le64toh(f->header->tail_object_offset)), &last_usec);
+
+ r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &o);
+ if (r < 0) {
+ error(p, "Invalid object");
+ goto fail;
+ }
+
+ if (p > le64toh(f->header->tail_object_offset)) {
+ error(offsetof(Header, tail_object_offset), "Invalid tail object pointer");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ n_objects++;
+
+ r = journal_file_object_verify(f, p, o);
+ if (r < 0) {
+ error(p, "Invalid object contents: %s", strerror(-r));
+ goto fail;
+ }
+
+ if ((o->object.flags & OBJECT_COMPRESSED_XZ) &&
+ (o->object.flags & OBJECT_COMPRESSED_LZ4)) {
+ error(p, "Objected with double compression");
+ r = -EINVAL;
+ goto fail;
+ }
+
+ if ((o->object.flags & OBJECT_COMPRESSED_XZ) && !JOURNAL_HEADER_COMPRESSED_XZ(f->header)) {
+ error(p, "XZ compressed object in file without XZ compression");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if ((o->object.flags & OBJECT_COMPRESSED_LZ4) && !JOURNAL_HEADER_COMPRESSED_LZ4(f->header)) {
+ error(p, "LZ4 compressed object in file without LZ4 compression");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ switch (o->object.type) {
+
+ case OBJECT_DATA:
+ r = write_uint64(data_fd, p);
+ if (r < 0)
+ goto fail;
+
+ n_data++;
+ break;
+
+ case OBJECT_FIELD:
+ n_fields++;
+ break;
+
+ case OBJECT_ENTRY:
+ if (JOURNAL_HEADER_SEALED(f->header) && n_tags <= 0) {
+ error(p, "First entry before first tag");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ r = write_uint64(entry_fd, p);
+ if (r < 0)
+ goto fail;
+
+ if (le64toh(o->entry.realtime) < last_tag_realtime) {
+ error(p, "Older entry after newer tag");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (!entry_seqnum_set &&
+ le64toh(o->entry.seqnum) != le64toh(f->header->head_entry_seqnum)) {
+ error(p, "Head entry sequence number incorrect");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (entry_seqnum_set &&
+ entry_seqnum >= le64toh(o->entry.seqnum)) {
+ error(p, "Entry sequence number out of synchronization");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ entry_seqnum = le64toh(o->entry.seqnum);
+ entry_seqnum_set = true;
+
+ if (entry_monotonic_set &&
+ sd_id128_equal(entry_boot_id, o->entry.boot_id) &&
+ entry_monotonic > le64toh(o->entry.monotonic)) {
+ error(p, "Entry timestamp out of synchronization");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ entry_monotonic = le64toh(o->entry.monotonic);
+ entry_boot_id = o->entry.boot_id;
+ entry_monotonic_set = true;
+
+ if (!entry_realtime_set &&
+ le64toh(o->entry.realtime) != le64toh(f->header->head_entry_realtime)) {
+ error(p, "Head entry realtime timestamp incorrect");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ entry_realtime = le64toh(o->entry.realtime);
+ entry_realtime_set = true;
+
+ n_entries++;
+ break;
+
+ case OBJECT_DATA_HASH_TABLE:
+ if (n_data_hash_tables > 1) {
+ error(p, "More than one data hash table");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (le64toh(f->header->data_hash_table_offset) != p + offsetof(HashTableObject, items) ||
+ le64toh(f->header->data_hash_table_size) != le64toh(o->object.size) - offsetof(HashTableObject, items)) {
+ error(p, "header fields for data hash table invalid");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ n_data_hash_tables++;
+ break;
+
+ case OBJECT_FIELD_HASH_TABLE:
+ if (n_field_hash_tables > 1) {
+ error(p, "More than one field hash table");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (le64toh(f->header->field_hash_table_offset) != p + offsetof(HashTableObject, items) ||
+ le64toh(f->header->field_hash_table_size) != le64toh(o->object.size) - offsetof(HashTableObject, items)) {
+ error(p, "Header fields for field hash table invalid");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ n_field_hash_tables++;
+ break;
+
+ case OBJECT_ENTRY_ARRAY:
+ r = write_uint64(entry_array_fd, p);
+ if (r < 0)
+ goto fail;
+
+ if (p == le64toh(f->header->entry_array_offset)) {
+ if (found_main_entry_array) {
+ error(p, "More than one main entry array");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ found_main_entry_array = true;
+ }
+
+ n_entry_arrays++;
+ break;
+
+ case OBJECT_TAG:
+ if (!JOURNAL_HEADER_SEALED(f->header)) {
+ error(p, "Tag object in file without sealing");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (le64toh(o->tag.seqnum) != n_tags + 1) {
+ error(p, "Tag sequence number out of synchronization");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (le64toh(o->tag.epoch) < last_epoch) {
+ error(p, "Epoch sequence out of synchronization");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+#ifdef HAVE_GCRYPT
+ if (f->seal) {
+ uint64_t q, rt;
+
+ debug(p, "Checking tag %"PRIu64"...", le64toh(o->tag.seqnum));
+
+ rt = f->fss_start_usec + o->tag.epoch * f->fss_interval_usec;
+ if (entry_realtime_set && entry_realtime >= rt + f->fss_interval_usec) {
+ error(p, "tag/entry realtime timestamp out of synchronization");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ /* OK, now we know the epoch. So let's now set
+ * it, and calculate the HMAC for everything
+ * since the last tag. */
+ r = journal_file_fsprg_seek(f, le64toh(o->tag.epoch));
+ if (r < 0)
+ goto fail;
+
+ r = journal_file_hmac_start(f);
+ if (r < 0)
+ goto fail;
+
+ if (last_tag == 0) {
+ r = journal_file_hmac_put_header(f);
+ if (r < 0)
+ goto fail;
+
+ q = le64toh(f->header->header_size);
+ } else
+ q = last_tag;
+
+ while (q <= p) {
+ r = journal_file_move_to_object(f, OBJECT_UNUSED, q, &o);
+ if (r < 0)
+ goto fail;
+
+ r = journal_file_hmac_put_object(f, OBJECT_UNUSED, o, q);
+ if (r < 0)
+ goto fail;
+
+ q = q + ALIGN64(le64toh(o->object.size));
+ }
+
+ /* Position might have changed, let's reposition things */
+ r = journal_file_move_to_object(f, OBJECT_UNUSED, p, &o);
+ if (r < 0)
+ goto fail;
+
+ if (memcmp(o->tag.tag, gcry_md_read(f->hmac, 0), TAG_LENGTH) != 0) {
+ error(p, "Tag failed verification");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ f->hmac_running = false;
+ last_tag_realtime = rt;
+ last_sealed_realtime = entry_realtime;
+ }
+
+ last_tag = p + ALIGN64(le64toh(o->object.size));
+#endif
+
+ last_epoch = le64toh(o->tag.epoch);
+
+ n_tags++;
+ break;
+
+ default:
+ n_weird++;
+ }
+
+ if (p == le64toh(f->header->tail_object_offset)) {
+ found_last = true;
+ break;
+ }
+
+ p = p + ALIGN64(le64toh(o->object.size));
+ };
+
+ if (!found_last && le64toh(f->header->tail_object_offset) != 0) {
+ error(le64toh(f->header->tail_object_offset), "Tail object pointer dead");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (n_objects != le64toh(f->header->n_objects)) {
+ error(offsetof(Header, n_objects), "Object number mismatch");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (n_entries != le64toh(f->header->n_entries)) {
+ error(offsetof(Header, n_entries), "Entry number mismatch");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_data) &&
+ n_data != le64toh(f->header->n_data)) {
+ error(offsetof(Header, n_data), "Data number mismatch");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_fields) &&
+ n_fields != le64toh(f->header->n_fields)) {
+ error(offsetof(Header, n_fields), "Field number mismatch");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_tags) &&
+ n_tags != le64toh(f->header->n_tags)) {
+ error(offsetof(Header, n_tags), "Tag number mismatch");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (JOURNAL_HEADER_CONTAINS(f->header, n_entry_arrays) &&
+ n_entry_arrays != le64toh(f->header->n_entry_arrays)) {
+ error(offsetof(Header, n_entry_arrays), "Entry array number mismatch");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (!found_main_entry_array && le64toh(f->header->entry_array_offset) != 0) {
+ error(0, "Missing entry array");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (entry_seqnum_set &&
+ entry_seqnum != le64toh(f->header->tail_entry_seqnum)) {
+ error(offsetof(Header, tail_entry_seqnum), "Invalid tail seqnum");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (entry_monotonic_set &&
+ (!sd_id128_equal(entry_boot_id, f->header->boot_id) ||
+ entry_monotonic != le64toh(f->header->tail_entry_monotonic))) {
+ error(0, "Invalid tail monotonic timestamp");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if (entry_realtime_set && entry_realtime != le64toh(f->header->tail_entry_realtime)) {
+ error(0, "Invalid tail realtime timestamp");
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ /* Second iteration: we follow all objects referenced from the
+ * two entry points: the object hash table and the entry
+ * array. We also check that everything referenced (directly
+ * or indirectly) in the data hash table also exists in the
+ * entry array, and vice versa. Note that we do not care for
+ * unreferenced objects. We only care that everything that is
+ * referenced is consistent. */
+
+ r = verify_entry_array(f,
+ data_fd, n_data,
+ entry_fd, n_entries,
+ entry_array_fd, n_entry_arrays,
+ &last_usec,
+ show_progress);
+ if (r < 0)
+ goto fail;
+
+ r = verify_hash_table(f,
+ data_fd, n_data,
+ entry_fd, n_entries,
+ entry_array_fd, n_entry_arrays,
+ &last_usec,
+ show_progress);
+ if (r < 0)
+ goto fail;
+
+ if (show_progress)
+ flush_progress();
+
+ mmap_cache_close_fd(f->mmap, data_fd);
+ mmap_cache_close_fd(f->mmap, entry_fd);
+ mmap_cache_close_fd(f->mmap, entry_array_fd);
+
+ safe_close(data_fd);
+ safe_close(entry_fd);
+ safe_close(entry_array_fd);
+
+ if (first_contained)
+ *first_contained = le64toh(f->header->head_entry_realtime);
+ if (last_validated)
+ *last_validated = last_sealed_realtime;
+ if (last_contained)
+ *last_contained = le64toh(f->header->tail_entry_realtime);
+
+ return 0;
+
+fail:
+ if (show_progress)
+ flush_progress();
+
+ log_error("File corruption detected at %s:"OFSfmt" (of %llu bytes, %"PRIu64"%%).",
+ f->path,
+ p,
+ (unsigned long long) f->last_stat.st_size,
+ 100 * p / f->last_stat.st_size);
+
+ if (data_fd >= 0) {
+ mmap_cache_close_fd(f->mmap, data_fd);
+ safe_close(data_fd);
+ }
+
+ if (entry_fd >= 0) {
+ mmap_cache_close_fd(f->mmap, entry_fd);
+ safe_close(entry_fd);
+ }
+
+ if (entry_array_fd >= 0) {
+ mmap_cache_close_fd(f->mmap, entry_array_fd);
+ safe_close(entry_array_fd);
+ }
+
+ return r;
+}
diff --git a/src/libsystemd/src/sd-journal/journal-verify.h b/src/libsystemd/src/sd-journal/journal-verify.h
new file mode 100644
index 0000000000..8f0eaf6daa
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/journal-verify.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "journal-file.h"
+
+int journal_file_verify(JournalFile *f, const char *key, usec_t *first_contained, usec_t *last_validated, usec_t *last_contained, bool show_progress);
diff --git a/src/libsystemd/src/sd-journal/lookup3.c b/src/libsystemd/src/sd-journal/lookup3.c
new file mode 100644
index 0000000000..3d791234f4
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/lookup3.c
@@ -0,0 +1,1009 @@
+/* Slightly modified by Lennart Poettering, to avoid name clashes, and
+ * unexport a few functions. */
+
+#include "lookup3.h"
+
+/*
+-------------------------------------------------------------------------------
+lookup3.c, by Bob Jenkins, May 2006, Public Domain.
+
+These are functions for producing 32-bit hashes for hash table lookup.
+hashword(), hashlittle(), hashlittle2(), hashbig(), mix(), and final()
+are externally useful functions. Routines to test the hash are included
+if SELF_TEST is defined. You can use this free for any purpose. It's in
+the public domain. It has no warranty.
+
+You probably want to use hashlittle(). hashlittle() and hashbig()
+hash byte arrays. hashlittle() is faster than hashbig() on
+little-endian machines. Intel and AMD are little-endian machines.
+On second thought, you probably want hashlittle2(), which is identical to
+hashlittle() except it returns two 32-bit hashes for the price of one.
+You could implement hashbig2() if you wanted but I haven't bothered here.
+
+If you want to find a hash of, say, exactly 7 integers, do
+ a = i1; b = i2; c = i3;
+ mix(a,b,c);
+ a += i4; b += i5; c += i6;
+ mix(a,b,c);
+ a += i7;
+ final(a,b,c);
+then use c as the hash value. If you have a variable length array of
+4-byte integers to hash, use hashword(). If you have a byte array (like
+a character string), use hashlittle(). If you have several byte arrays, or
+a mix of things, see the comments above hashlittle().
+
+Why is this so big? I read 12 bytes at a time into 3 4-byte integers,
+then mix those integers. This is fast (you can do a lot more thorough
+mixing with 12*3 instructions on 3 integers than you can with 3 instructions
+on 1 byte), but shoehorning those bytes into integers efficiently is messy.
+-------------------------------------------------------------------------------
+*/
+/* #define SELF_TEST 1 */
+
+#include <stdint.h> /* defines uint32_t etc */
+#include <stdio.h> /* defines printf for tests */
+#include <sys/param.h> /* attempt to define endianness */
+#include <time.h> /* defines time_t for timings in the test */
+#ifdef linux
+# include <endian.h> /* attempt to define endianness */
+#endif
+
+/*
+ * My best guess at if you are big-endian or little-endian. This may
+ * need adjustment.
+ */
+#if (defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && \
+ __BYTE_ORDER == __LITTLE_ENDIAN) || \
+ (defined(i386) || defined(__i386__) || defined(__i486__) || \
+ defined(__i586__) || defined(__i686__) || defined(vax) || defined(MIPSEL))
+# define HASH_LITTLE_ENDIAN 1
+# define HASH_BIG_ENDIAN 0
+#elif (defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && \
+ __BYTE_ORDER == __BIG_ENDIAN) || \
+ (defined(sparc) || defined(POWERPC) || defined(mc68000) || defined(sel))
+# define HASH_LITTLE_ENDIAN 0
+# define HASH_BIG_ENDIAN 1
+#else
+# define HASH_LITTLE_ENDIAN 0
+# define HASH_BIG_ENDIAN 0
+#endif
+
+#define hashsize(n) ((uint32_t)1<<(n))
+#define hashmask(n) (hashsize(n)-1)
+#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
+
+/*
+-------------------------------------------------------------------------------
+mix -- mix 3 32-bit values reversibly.
+
+This is reversible, so any information in (a,b,c) before mix() is
+still in (a,b,c) after mix().
+
+If four pairs of (a,b,c) inputs are run through mix(), or through
+mix() in reverse, there are at least 32 bits of the output that
+are sometimes the same for one pair and different for another pair.
+This was tested for:
+* pairs that differed by one bit, by two bits, in any combination
+ of top bits of (a,b,c), or in any combination of bottom bits of
+ (a,b,c).
+* "differ" is defined as +, -, ^, or ~^. For + and -, I transformed
+ the output delta to a Gray code (a^(a>>1)) so a string of 1's (as
+ is commonly produced by subtraction) look like a single 1-bit
+ difference.
+* the base values were pseudorandom, all zero but one bit set, or
+ all zero plus a counter that starts at zero.
+
+Some k values for my "a-=c; a^=rot(c,k); c+=b;" arrangement that
+satisfy this are
+ 4 6 8 16 19 4
+ 9 15 3 18 27 15
+ 14 9 3 7 17 3
+Well, "9 15 3 18 27 15" didn't quite get 32 bits diffing
+for "differ" defined as + with a one-bit base and a two-bit delta. I
+used http://burtleburtle.net/bob/hash/avalanche.html to choose
+the operations, constants, and arrangements of the variables.
+
+This does not achieve avalanche. There are input bits of (a,b,c)
+that fail to affect some output bits of (a,b,c), especially of a. The
+most thoroughly mixed value is c, but it doesn't really even achieve
+avalanche in c.
+
+This allows some parallelism. Read-after-writes are good at doubling
+the number of bits affected, so the goal of mixing pulls in the opposite
+direction as the goal of parallelism. I did what I could. Rotates
+seem to cost as much as shifts on every machine I could lay my hands
+on, and rotates are much kinder to the top and bottom bits, so I used
+rotates.
+-------------------------------------------------------------------------------
+*/
+#define mix(a,b,c) \
+{ \
+ a -= c; a ^= rot(c, 4); c += b; \
+ b -= a; b ^= rot(a, 6); a += c; \
+ c -= b; c ^= rot(b, 8); b += a; \
+ a -= c; a ^= rot(c,16); c += b; \
+ b -= a; b ^= rot(a,19); a += c; \
+ c -= b; c ^= rot(b, 4); b += a; \
+}
+
+/*
+-------------------------------------------------------------------------------
+final -- final mixing of 3 32-bit values (a,b,c) into c
+
+Pairs of (a,b,c) values differing in only a few bits will usually
+produce values of c that look totally different. This was tested for
+* pairs that differed by one bit, by two bits, in any combination
+ of top bits of (a,b,c), or in any combination of bottom bits of
+ (a,b,c).
+* "differ" is defined as +, -, ^, or ~^. For + and -, I transformed
+ the output delta to a Gray code (a^(a>>1)) so a string of 1's (as
+ is commonly produced by subtraction) look like a single 1-bit
+ difference.
+* the base values were pseudorandom, all zero but one bit set, or
+ all zero plus a counter that starts at zero.
+
+These constants passed:
+ 14 11 25 16 4 14 24
+ 12 14 25 16 4 14 24
+and these came close:
+ 4 8 15 26 3 22 24
+ 10 8 15 26 3 22 24
+ 11 8 15 26 3 22 24
+-------------------------------------------------------------------------------
+*/
+#define final(a,b,c) \
+{ \
+ c ^= b; c -= rot(b,14); \
+ a ^= c; a -= rot(c,11); \
+ b ^= a; b -= rot(a,25); \
+ c ^= b; c -= rot(b,16); \
+ a ^= c; a -= rot(c,4); \
+ b ^= a; b -= rot(a,14); \
+ c ^= b; c -= rot(b,24); \
+}
+
+/*
+--------------------------------------------------------------------
+ This works on all machines. To be useful, it requires
+ -- that the key be an array of uint32_t's, and
+ -- that the length be the number of uint32_t's in the key
+
+ The function hashword() is identical to hashlittle() on little-endian
+ machines, and identical to hashbig() on big-endian machines,
+ except that the length has to be measured in uint32_ts rather than in
+ bytes. hashlittle() is more complicated than hashword() only because
+ hashlittle() has to dance around fitting the key bytes into registers.
+--------------------------------------------------------------------
+*/
+uint32_t jenkins_hashword(
+const uint32_t *k, /* the key, an array of uint32_t values */
+size_t length, /* the length of the key, in uint32_ts */
+uint32_t initval) /* the previous hash, or an arbitrary value */
+{
+ uint32_t a,b,c;
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + (((uint32_t)length)<<2) + initval;
+
+ /*------------------------------------------------- handle most of the key */
+ while (length > 3)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 3;
+ k += 3;
+ }
+
+ /*------------------------------------------- handle the last 3 uint32_t's */
+ switch(length) /* all the case statements fall through */
+ {
+ case 3 : c+=k[2];
+ case 2 : b+=k[1];
+ case 1 : a+=k[0];
+ final(a,b,c);
+ case 0: /* case 0: nothing left to add */
+ break;
+ }
+ /*------------------------------------------------------ report the result */
+ return c;
+}
+
+
+/*
+--------------------------------------------------------------------
+hashword2() -- same as hashword(), but take two seeds and return two
+32-bit values. pc and pb must both be nonnull, and *pc and *pb must
+both be initialized with seeds. If you pass in (*pb)==0, the output
+(*pc) will be the same as the return value from hashword().
+--------------------------------------------------------------------
+*/
+void jenkins_hashword2 (
+const uint32_t *k, /* the key, an array of uint32_t values */
+size_t length, /* the length of the key, in uint32_ts */
+uint32_t *pc, /* IN: seed OUT: primary hash value */
+uint32_t *pb) /* IN: more seed OUT: secondary hash value */
+{
+ uint32_t a,b,c;
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + ((uint32_t)(length<<2)) + *pc;
+ c += *pb;
+
+ /*------------------------------------------------- handle most of the key */
+ while (length > 3)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 3;
+ k += 3;
+ }
+
+ /*------------------------------------------- handle the last 3 uint32_t's */
+ switch(length) /* all the case statements fall through */
+ {
+ case 3 : c+=k[2];
+ case 2 : b+=k[1];
+ case 1 : a+=k[0];
+ final(a,b,c);
+ case 0: /* case 0: nothing left to add */
+ break;
+ }
+ /*------------------------------------------------------ report the result */
+ *pc=c; *pb=b;
+}
+
+
+/*
+-------------------------------------------------------------------------------
+hashlittle() -- hash a variable-length key into a 32-bit value
+ k : the key (the unaligned variable-length array of bytes)
+ length : the length of the key, counting by bytes
+ initval : can be any 4-byte value
+Returns a 32-bit value. Every bit of the key affects every bit of
+the return value. Two keys differing by one or two bits will have
+totally different hash values.
+
+The best hash table sizes are powers of 2. There is no need to do
+mod a prime (mod is sooo slow!). If you need less than 32 bits,
+use a bitmask. For example, if you need only 10 bits, do
+ h = (h & hashmask(10));
+In which case, the hash table should have hashsize(10) elements.
+
+If you are hashing n strings (uint8_t **)k, do it like this:
+ for (i=0, h=0; i<n; ++i) h = hashlittle( k[i], len[i], h);
+
+By Bob Jenkins, 2006. bob_jenkins@burtleburtle.net. You may use this
+code any way you wish, private, educational, or commercial. It's free.
+
+Use for hash table lookup, or anything where one collision in 2^^32 is
+acceptable. Do NOT use for cryptographic purposes.
+-------------------------------------------------------------------------------
+*/
+
+uint32_t jenkins_hashlittle( const void *key, size_t length, uint32_t initval)
+{
+ uint32_t a,b,c; /* internal state */
+ union { const void *ptr; size_t i; } u; /* needed for Mac Powerbook G4 */
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + ((uint32_t)length) + initval;
+
+ u.ptr = key;
+ if (HASH_LITTLE_ENDIAN && ((u.i & 0x3) == 0)) {
+ const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */
+
+ /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 12;
+ k += 3;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ /*
+ * "k[2]&0xffffff" actually reads beyond the end of the string, but
+ * then masks off the part it's not allowed to read. Because the
+ * string is aligned, the masked-off tail is in the same word as the
+ * rest of the string. Every machine with memory protection I've seen
+ * does it on word boundaries, so is OK with this. But VALGRIND will
+ * still catch it and complain. The masking trick does make the hash
+ * noticeably faster for short strings (like English words).
+ */
+#ifndef VALGRIND
+
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break;
+ case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break;
+ case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break;
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=k[1]&0xffffff; a+=k[0]; break;
+ case 6 : b+=k[1]&0xffff; a+=k[0]; break;
+ case 5 : b+=k[1]&0xff; a+=k[0]; break;
+ case 4 : a+=k[0]; break;
+ case 3 : a+=k[0]&0xffffff; break;
+ case 2 : a+=k[0]&0xffff; break;
+ case 1 : a+=k[0]&0xff; break;
+ case 0 : return c; /* zero length strings require no mixing */
+ }
+
+#else /* make valgrind happy */
+ {
+ const uint8_t *k8 = (const uint8_t *) k;
+
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=((uint32_t)k8[10])<<16; /* fall through */
+ case 10: c+=((uint32_t)k8[9])<<8; /* fall through */
+ case 9 : c+=k8[8]; /* fall through */
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */
+ case 6 : b+=((uint32_t)k8[5])<<8; /* fall through */
+ case 5 : b+=k8[4]; /* fall through */
+ case 4 : a+=k[0]; break;
+ case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */
+ case 2 : a+=((uint32_t)k8[1])<<8; /* fall through */
+ case 1 : a+=k8[0]; break;
+ case 0 : return c;
+ }
+ }
+
+#endif /* !valgrind */
+
+ } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) {
+ const uint16_t *k = (const uint16_t *)key; /* read 16-bit chunks */
+ const uint8_t *k8;
+
+ /*--------------- all but last block: aligned reads and different mixing */
+ while (length > 12)
+ {
+ a += k[0] + (((uint32_t)k[1])<<16);
+ b += k[2] + (((uint32_t)k[3])<<16);
+ c += k[4] + (((uint32_t)k[5])<<16);
+ mix(a,b,c);
+ length -= 12;
+ k += 6;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ k8 = (const uint8_t *)k;
+ switch(length)
+ {
+ case 12: c+=k[4]+(((uint32_t)k[5])<<16);
+ b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 11: c+=((uint32_t)k8[10])<<16; /* fall through */
+ case 10: c+=k[4];
+ b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 9 : c+=k8[8]; /* fall through */
+ case 8 : b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */
+ case 6 : b+=k[2];
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 5 : b+=k8[4]; /* fall through */
+ case 4 : a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */
+ case 2 : a+=k[0];
+ break;
+ case 1 : a+=k8[0];
+ break;
+ case 0 : return c; /* zero length requires no mixing */
+ }
+
+ } else { /* need to read the key one byte at a time */
+ const uint8_t *k = (const uint8_t *)key;
+
+ /*--------------- all but the last block: affect some 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ a += ((uint32_t)k[1])<<8;
+ a += ((uint32_t)k[2])<<16;
+ a += ((uint32_t)k[3])<<24;
+ b += k[4];
+ b += ((uint32_t)k[5])<<8;
+ b += ((uint32_t)k[6])<<16;
+ b += ((uint32_t)k[7])<<24;
+ c += k[8];
+ c += ((uint32_t)k[9])<<8;
+ c += ((uint32_t)k[10])<<16;
+ c += ((uint32_t)k[11])<<24;
+ mix(a,b,c);
+ length -= 12;
+ k += 12;
+ }
+
+ /*-------------------------------- last block: affect all 32 bits of (c) */
+ switch(length) /* all the case statements fall through */
+ {
+ case 12: c+=((uint32_t)k[11])<<24;
+ case 11: c+=((uint32_t)k[10])<<16;
+ case 10: c+=((uint32_t)k[9])<<8;
+ case 9 : c+=k[8];
+ case 8 : b+=((uint32_t)k[7])<<24;
+ case 7 : b+=((uint32_t)k[6])<<16;
+ case 6 : b+=((uint32_t)k[5])<<8;
+ case 5 : b+=k[4];
+ case 4 : a+=((uint32_t)k[3])<<24;
+ case 3 : a+=((uint32_t)k[2])<<16;
+ case 2 : a+=((uint32_t)k[1])<<8;
+ case 1 : a+=k[0];
+ break;
+ case 0 : return c;
+ }
+ }
+
+ final(a,b,c);
+ return c;
+}
+
+
+/*
+ * hashlittle2: return 2 32-bit hash values
+ *
+ * This is identical to hashlittle(), except it returns two 32-bit hash
+ * values instead of just one. This is good enough for hash table
+ * lookup with 2^^64 buckets, or if you want a second hash if you're not
+ * happy with the first, or if you want a probably-unique 64-bit ID for
+ * the key. *pc is better mixed than *pb, so use *pc first. If you want
+ * a 64-bit value do something like "*pc + (((uint64_t)*pb)<<32)".
+ */
+void jenkins_hashlittle2(
+ const void *key, /* the key to hash */
+ size_t length, /* length of the key */
+ uint32_t *pc, /* IN: primary initval, OUT: primary hash */
+ uint32_t *pb) /* IN: secondary initval, OUT: secondary hash */
+{
+ uint32_t a,b,c; /* internal state */
+ union { const void *ptr; size_t i; } u; /* needed for Mac Powerbook G4 */
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + ((uint32_t)length) + *pc;
+ c += *pb;
+
+ u.ptr = key;
+ if (HASH_LITTLE_ENDIAN && ((u.i & 0x3) == 0)) {
+ const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */
+
+ /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 12;
+ k += 3;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ /*
+ * "k[2]&0xffffff" actually reads beyond the end of the string, but
+ * then masks off the part it's not allowed to read. Because the
+ * string is aligned, the masked-off tail is in the same word as the
+ * rest of the string. Every machine with memory protection I've seen
+ * does it on word boundaries, so is OK with this. But VALGRIND will
+ * still catch it and complain. The masking trick does make the hash
+ * noticeably faster for short strings (like English words).
+ */
+#ifndef VALGRIND
+
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break;
+ case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break;
+ case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break;
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=k[1]&0xffffff; a+=k[0]; break;
+ case 6 : b+=k[1]&0xffff; a+=k[0]; break;
+ case 5 : b+=k[1]&0xff; a+=k[0]; break;
+ case 4 : a+=k[0]; break;
+ case 3 : a+=k[0]&0xffffff; break;
+ case 2 : a+=k[0]&0xffff; break;
+ case 1 : a+=k[0]&0xff; break;
+ case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */
+ }
+
+#else /* make valgrind happy */
+
+ {
+ const uint8_t *k8 = (const uint8_t *)k;
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=((uint32_t)k8[10])<<16; /* fall through */
+ case 10: c+=((uint32_t)k8[9])<<8; /* fall through */
+ case 9 : c+=k8[8]; /* fall through */
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */
+ case 6 : b+=((uint32_t)k8[5])<<8; /* fall through */
+ case 5 : b+=k8[4]; /* fall through */
+ case 4 : a+=k[0]; break;
+ case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */
+ case 2 : a+=((uint32_t)k8[1])<<8; /* fall through */
+ case 1 : a+=k8[0]; break;
+ case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */
+ }
+ }
+
+#endif /* !valgrind */
+
+ } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) {
+ const uint16_t *k = (const uint16_t *)key; /* read 16-bit chunks */
+ const uint8_t *k8;
+
+ /*--------------- all but last block: aligned reads and different mixing */
+ while (length > 12)
+ {
+ a += k[0] + (((uint32_t)k[1])<<16);
+ b += k[2] + (((uint32_t)k[3])<<16);
+ c += k[4] + (((uint32_t)k[5])<<16);
+ mix(a,b,c);
+ length -= 12;
+ k += 6;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ k8 = (const uint8_t *)k;
+ switch(length)
+ {
+ case 12: c+=k[4]+(((uint32_t)k[5])<<16);
+ b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 11: c+=((uint32_t)k8[10])<<16; /* fall through */
+ case 10: c+=k[4];
+ b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 9 : c+=k8[8]; /* fall through */
+ case 8 : b+=k[2]+(((uint32_t)k[3])<<16);
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 7 : b+=((uint32_t)k8[6])<<16; /* fall through */
+ case 6 : b+=k[2];
+ a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 5 : b+=k8[4]; /* fall through */
+ case 4 : a+=k[0]+(((uint32_t)k[1])<<16);
+ break;
+ case 3 : a+=((uint32_t)k8[2])<<16; /* fall through */
+ case 2 : a+=k[0];
+ break;
+ case 1 : a+=k8[0];
+ break;
+ case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */
+ }
+
+ } else { /* need to read the key one byte at a time */
+ const uint8_t *k = (const uint8_t *)key;
+
+ /*--------------- all but the last block: affect some 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ a += ((uint32_t)k[1])<<8;
+ a += ((uint32_t)k[2])<<16;
+ a += ((uint32_t)k[3])<<24;
+ b += k[4];
+ b += ((uint32_t)k[5])<<8;
+ b += ((uint32_t)k[6])<<16;
+ b += ((uint32_t)k[7])<<24;
+ c += k[8];
+ c += ((uint32_t)k[9])<<8;
+ c += ((uint32_t)k[10])<<16;
+ c += ((uint32_t)k[11])<<24;
+ mix(a,b,c);
+ length -= 12;
+ k += 12;
+ }
+
+ /*-------------------------------- last block: affect all 32 bits of (c) */
+ switch(length) /* all the case statements fall through */
+ {
+ case 12: c+=((uint32_t)k[11])<<24;
+ case 11: c+=((uint32_t)k[10])<<16;
+ case 10: c+=((uint32_t)k[9])<<8;
+ case 9 : c+=k[8];
+ case 8 : b+=((uint32_t)k[7])<<24;
+ case 7 : b+=((uint32_t)k[6])<<16;
+ case 6 : b+=((uint32_t)k[5])<<8;
+ case 5 : b+=k[4];
+ case 4 : a+=((uint32_t)k[3])<<24;
+ case 3 : a+=((uint32_t)k[2])<<16;
+ case 2 : a+=((uint32_t)k[1])<<8;
+ case 1 : a+=k[0];
+ break;
+ case 0 : *pc=c; *pb=b; return; /* zero length strings require no mixing */
+ }
+ }
+
+ final(a,b,c);
+ *pc=c; *pb=b;
+}
+
+
+
+/*
+ * hashbig():
+ * This is the same as hashword() on big-endian machines. It is different
+ * from hashlittle() on all machines. hashbig() takes advantage of
+ * big-endian byte ordering.
+ */
+uint32_t jenkins_hashbig( const void *key, size_t length, uint32_t initval)
+{
+ uint32_t a,b,c;
+ union { const void *ptr; size_t i; } u; /* to cast key to (size_t) happily */
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + ((uint32_t)length) + initval;
+
+ u.ptr = key;
+ if (HASH_BIG_ENDIAN && ((u.i & 0x3) == 0)) {
+ const uint32_t *k = (const uint32_t *)key; /* read 32-bit chunks */
+
+ /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 12;
+ k += 3;
+ }
+
+ /*----------------------------- handle the last (probably partial) block */
+ /*
+ * "k[2]<<8" actually reads beyond the end of the string, but
+ * then shifts out the part it's not allowed to read. Because the
+ * string is aligned, the illegal read is in the same word as the
+ * rest of the string. Every machine with memory protection I've seen
+ * does it on word boundaries, so is OK with this. But VALGRIND will
+ * still catch it and complain. The masking trick does make the hash
+ * noticeably faster for short strings (like English words).
+ */
+#ifndef VALGRIND
+
+ switch(length)
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=k[2]&0xffffff00; b+=k[1]; a+=k[0]; break;
+ case 10: c+=k[2]&0xffff0000; b+=k[1]; a+=k[0]; break;
+ case 9 : c+=k[2]&0xff000000; b+=k[1]; a+=k[0]; break;
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=k[1]&0xffffff00; a+=k[0]; break;
+ case 6 : b+=k[1]&0xffff0000; a+=k[0]; break;
+ case 5 : b+=k[1]&0xff000000; a+=k[0]; break;
+ case 4 : a+=k[0]; break;
+ case 3 : a+=k[0]&0xffffff00; break;
+ case 2 : a+=k[0]&0xffff0000; break;
+ case 1 : a+=k[0]&0xff000000; break;
+ case 0 : return c; /* zero length strings require no mixing */
+ }
+
+#else /* make valgrind happy */
+
+ {
+ const uint8_t *k8 = (const uint8_t *)k;
+ switch(length) /* all the case statements fall through */
+ {
+ case 12: c+=k[2]; b+=k[1]; a+=k[0]; break;
+ case 11: c+=((uint32_t)k8[10])<<8; /* fall through */
+ case 10: c+=((uint32_t)k8[9])<<16; /* fall through */
+ case 9 : c+=((uint32_t)k8[8])<<24; /* fall through */
+ case 8 : b+=k[1]; a+=k[0]; break;
+ case 7 : b+=((uint32_t)k8[6])<<8; /* fall through */
+ case 6 : b+=((uint32_t)k8[5])<<16; /* fall through */
+ case 5 : b+=((uint32_t)k8[4])<<24; /* fall through */
+ case 4 : a+=k[0]; break;
+ case 3 : a+=((uint32_t)k8[2])<<8; /* fall through */
+ case 2 : a+=((uint32_t)k8[1])<<16; /* fall through */
+ case 1 : a+=((uint32_t)k8[0])<<24; break;
+ case 0 : return c;
+ }
+ }
+
+#endif /* !VALGRIND */
+
+ } else { /* need to read the key one byte at a time */
+ const uint8_t *k = (const uint8_t *)key;
+
+ /*--------------- all but the last block: affect some 32 bits of (a,b,c) */
+ while (length > 12)
+ {
+ a += ((uint32_t)k[0])<<24;
+ a += ((uint32_t)k[1])<<16;
+ a += ((uint32_t)k[2])<<8;
+ a += ((uint32_t)k[3]);
+ b += ((uint32_t)k[4])<<24;
+ b += ((uint32_t)k[5])<<16;
+ b += ((uint32_t)k[6])<<8;
+ b += ((uint32_t)k[7]);
+ c += ((uint32_t)k[8])<<24;
+ c += ((uint32_t)k[9])<<16;
+ c += ((uint32_t)k[10])<<8;
+ c += ((uint32_t)k[11]);
+ mix(a,b,c);
+ length -= 12;
+ k += 12;
+ }
+
+ /*-------------------------------- last block: affect all 32 bits of (c) */
+ switch(length) /* all the case statements fall through */
+ {
+ case 12: c+=k[11];
+ case 11: c+=((uint32_t)k[10])<<8;
+ case 10: c+=((uint32_t)k[9])<<16;
+ case 9 : c+=((uint32_t)k[8])<<24;
+ case 8 : b+=k[7];
+ case 7 : b+=((uint32_t)k[6])<<8;
+ case 6 : b+=((uint32_t)k[5])<<16;
+ case 5 : b+=((uint32_t)k[4])<<24;
+ case 4 : a+=k[3];
+ case 3 : a+=((uint32_t)k[2])<<8;
+ case 2 : a+=((uint32_t)k[1])<<16;
+ case 1 : a+=((uint32_t)k[0])<<24;
+ break;
+ case 0 : return c;
+ }
+ }
+
+ final(a,b,c);
+ return c;
+}
+
+
+#ifdef SELF_TEST
+
+/* used for timings */
+void driver1()
+{
+ uint8_t buf[256];
+ uint32_t i;
+ uint32_t h=0;
+ time_t a,z;
+
+ time(&a);
+ for (i=0; i<256; ++i) buf[i] = 'x';
+ for (i=0; i<1; ++i)
+ {
+ h = hashlittle(&buf[0],1,h);
+ }
+ time(&z);
+ if (z-a > 0) printf("time %d %.8x\n", z-a, h);
+}
+
+/* check that every input bit changes every output bit half the time */
+#define HASHSTATE 1
+#define HASHLEN 1
+#define MAXPAIR 60
+#define MAXLEN 70
+void driver2()
+{
+ uint8_t qa[MAXLEN+1], qb[MAXLEN+2], *a = &qa[0], *b = &qb[1];
+ uint32_t c[HASHSTATE], d[HASHSTATE], i=0, j=0, k, l, m=0, z;
+ uint32_t e[HASHSTATE],f[HASHSTATE],g[HASHSTATE],h[HASHSTATE];
+ uint32_t x[HASHSTATE],y[HASHSTATE];
+ uint32_t hlen;
+
+ printf("No more than %d trials should ever be needed \n",MAXPAIR/2);
+ for (hlen=0; hlen < MAXLEN; ++hlen)
+ {
+ z=0;
+ for (i=0; i<hlen; ++i) /*----------------------- for each input byte, */
+ {
+ for (j=0; j<8; ++j) /*------------------------ for each input bit, */
+ {
+ for (m=1; m<8; ++m) /*------------ for serveral possible initvals, */
+ {
+ for (l=0; l<HASHSTATE; ++l)
+ e[l]=f[l]=g[l]=h[l]=x[l]=y[l]=~((uint32_t)0);
+
+ /*---- check that every output bit is affected by that input bit */
+ for (k=0; k<MAXPAIR; k+=2)
+ {
+ uint32_t finished=1;
+ /* keys have one bit different */
+ for (l=0; l<hlen+1; ++l) {a[l] = b[l] = (uint8_t)0;}
+ /* have a and b be two keys differing in only one bit */
+ a[i] ^= (k<<j);
+ a[i] ^= (k>>(8-j));
+ c[0] = hashlittle(a, hlen, m);
+ b[i] ^= ((k+1)<<j);
+ b[i] ^= ((k+1)>>(8-j));
+ d[0] = hashlittle(b, hlen, m);
+ /* check every bit is 1, 0, set, and not set at least once */
+ for (l=0; l<HASHSTATE; ++l)
+ {
+ e[l] &= (c[l]^d[l]);
+ f[l] &= ~(c[l]^d[l]);
+ g[l] &= c[l];
+ h[l] &= ~c[l];
+ x[l] &= d[l];
+ y[l] &= ~d[l];
+ if (e[l]|f[l]|g[l]|h[l]|x[l]|y[l]) finished=0;
+ }
+ if (finished) break;
+ }
+ if (k>z) z=k;
+ if (k==MAXPAIR)
+ {
+ printf("Some bit didn't change: ");
+ printf("%.8x %.8x %.8x %.8x %.8x %.8x ",
+ e[0],f[0],g[0],h[0],x[0],y[0]);
+ printf("i %d j %d m %d len %d\n", i, j, m, hlen);
+ }
+ if (z==MAXPAIR) goto done;
+ }
+ }
+ }
+ done:
+ if (z < MAXPAIR)
+ {
+ printf("Mix success %2d bytes %2d initvals ",i,m);
+ printf("required %d trials\n", z/2);
+ }
+ }
+ printf("\n");
+}
+
+/* Check for reading beyond the end of the buffer and alignment problems */
+void driver3()
+{
+ uint8_t buf[MAXLEN+20], *b;
+ uint32_t len;
+ uint8_t q[] = "This is the time for all good men to come to the aid of their country...";
+ uint32_t h;
+ uint8_t qq[] = "xThis is the time for all good men to come to the aid of their country...";
+ uint32_t i;
+ uint8_t qqq[] = "xxThis is the time for all good men to come to the aid of their country...";
+ uint32_t j;
+ uint8_t qqqq[] = "xxxThis is the time for all good men to come to the aid of their country...";
+ uint32_t ref,x,y;
+ uint8_t *p;
+
+ printf("Endianness. These lines should all be the same (for values filled in):\n");
+ printf("%.8x %.8x %.8x\n",
+ hashword((const uint32_t *)q, (sizeof(q)-1)/4, 13),
+ hashword((const uint32_t *)q, (sizeof(q)-5)/4, 13),
+ hashword((const uint32_t *)q, (sizeof(q)-9)/4, 13));
+ p = q;
+ printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n",
+ hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13),
+ hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13),
+ hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13),
+ hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13),
+ hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13),
+ hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13));
+ p = &qq[1];
+ printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n",
+ hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13),
+ hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13),
+ hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13),
+ hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13),
+ hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13),
+ hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13));
+ p = &qqq[2];
+ printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n",
+ hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13),
+ hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13),
+ hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13),
+ hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13),
+ hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13),
+ hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13));
+ p = &qqqq[3];
+ printf("%.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x %.8x\n",
+ hashlittle(p, sizeof(q)-1, 13), hashlittle(p, sizeof(q)-2, 13),
+ hashlittle(p, sizeof(q)-3, 13), hashlittle(p, sizeof(q)-4, 13),
+ hashlittle(p, sizeof(q)-5, 13), hashlittle(p, sizeof(q)-6, 13),
+ hashlittle(p, sizeof(q)-7, 13), hashlittle(p, sizeof(q)-8, 13),
+ hashlittle(p, sizeof(q)-9, 13), hashlittle(p, sizeof(q)-10, 13),
+ hashlittle(p, sizeof(q)-11, 13), hashlittle(p, sizeof(q)-12, 13));
+ printf("\n");
+
+ /* check that hashlittle2 and hashlittle produce the same results */
+ i=47; j=0;
+ hashlittle2(q, sizeof(q), &i, &j);
+ if (hashlittle(q, sizeof(q), 47) != i)
+ printf("hashlittle2 and hashlittle mismatch\n");
+
+ /* check that hashword2 and hashword produce the same results */
+ len = 0xdeadbeef;
+ i=47, j=0;
+ hashword2(&len, 1, &i, &j);
+ if (hashword(&len, 1, 47) != i)
+ printf("hashword2 and hashword mismatch %x %x\n",
+ i, hashword(&len, 1, 47));
+
+ /* check hashlittle doesn't read before or after the ends of the string */
+ for (h=0, b=buf+1; h<8; ++h, ++b)
+ {
+ for (i=0; i<MAXLEN; ++i)
+ {
+ len = i;
+ for (j=0; j<i; ++j) *(b+j)=0;
+
+ /* these should all be equal */
+ ref = hashlittle(b, len, (uint32_t)1);
+ *(b+i)=(uint8_t)~0;
+ *(b-1)=(uint8_t)~0;
+ x = hashlittle(b, len, (uint32_t)1);
+ y = hashlittle(b, len, (uint32_t)1);
+ if ((ref != x) || (ref != y))
+ {
+ printf("alignment error: %.8x %.8x %.8x %d %d\n",ref,x,y,
+ h, i);
+ }
+ }
+ }
+}
+
+/* check for problems with nulls */
+ void driver4()
+{
+ uint8_t buf[1];
+ uint32_t h,i,state[HASHSTATE];
+
+
+ buf[0] = ~0;
+ for (i=0; i<HASHSTATE; ++i) state[i] = 1;
+ printf("These should all be different\n");
+ for (i=0, h=0; i<8; ++i)
+ {
+ h = hashlittle(buf, 0, h);
+ printf("%2ld 0-byte strings, hash is %.8x\n", i, h);
+ }
+}
+
+void driver5()
+{
+ uint32_t b,c;
+ b=0, c=0, hashlittle2("", 0, &c, &b);
+ printf("hash is %.8lx %.8lx\n", c, b); /* deadbeef deadbeef */
+ b=0xdeadbeef, c=0, hashlittle2("", 0, &c, &b);
+ printf("hash is %.8lx %.8lx\n", c, b); /* bd5b7dde deadbeef */
+ b=0xdeadbeef, c=0xdeadbeef, hashlittle2("", 0, &c, &b);
+ printf("hash is %.8lx %.8lx\n", c, b); /* 9c093ccd bd5b7dde */
+ b=0, c=0, hashlittle2("Four score and seven years ago", 30, &c, &b);
+ printf("hash is %.8lx %.8lx\n", c, b); /* 17770551 ce7226e6 */
+ b=1, c=0, hashlittle2("Four score and seven years ago", 30, &c, &b);
+ printf("hash is %.8lx %.8lx\n", c, b); /* e3607cae bd371de4 */
+ b=0, c=1, hashlittle2("Four score and seven years ago", 30, &c, &b);
+ printf("hash is %.8lx %.8lx\n", c, b); /* cd628161 6cbea4b3 */
+ c = hashlittle("Four score and seven years ago", 30, 0);
+ printf("hash is %.8lx\n", c); /* 17770551 */
+ c = hashlittle("Four score and seven years ago", 30, 1);
+ printf("hash is %.8lx\n", c); /* cd628161 */
+}
+
+
+int main()
+{
+ driver1(); /* test that the key is hashed: used for timings */
+ driver2(); /* test that whole key is hashed thoroughly */
+ driver3(); /* test that nothing but the key is hashed */
+ driver4(); /* test hashing multiple buffers (all buffers are null) */
+ driver5(); /* test the hash against known vectors */
+ return 1;
+}
+
+#endif /* SELF_TEST */
diff --git a/src/libsystemd/src/sd-journal/lookup3.h b/src/libsystemd/src/sd-journal/lookup3.h
new file mode 100644
index 0000000000..28ab5ca4f5
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/lookup3.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include "basic/macro.h"
+
+uint32_t jenkins_hashword(const uint32_t *k, size_t length, uint32_t initval) _pure_;
+void jenkins_hashword2(const uint32_t *k, size_t length, uint32_t *pc, uint32_t *pb);
+
+uint32_t jenkins_hashlittle(const void *key, size_t length, uint32_t initval) _pure_;
+void jenkins_hashlittle2(const void *key, size_t length, uint32_t *pc, uint32_t *pb);
+
+uint32_t jenkins_hashbig(const void *key, size_t length, uint32_t initval) _pure_;
+
+static inline uint64_t hash64(const void *data, size_t length) {
+ uint32_t a = 0, b = 0;
+
+ jenkins_hashlittle2(data, length, &a, &b);
+
+ return ((uint64_t) a << 32ULL) | (uint64_t) b;
+}
diff --git a/src/libsystemd/src/sd-journal/mmap-cache.c b/src/libsystemd/src/sd-journal/mmap-cache.c
new file mode 100644
index 0000000000..7f4aa78308
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/mmap-cache.c
@@ -0,0 +1,726 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/hashmap.h"
+#include "basic/list.h"
+#include "basic/log.h"
+#include "basic/macro.h"
+#include "basic/sigbus.h"
+#include "basic/util.h"
+
+#include "mmap-cache.h"
+
+typedef struct Window Window;
+typedef struct Context Context;
+typedef struct FileDescriptor FileDescriptor;
+
+struct Window {
+ MMapCache *cache;
+
+ bool invalidated:1;
+ bool keep_always:1;
+ bool in_unused:1;
+
+ int prot;
+ void *ptr;
+ uint64_t offset;
+ size_t size;
+
+ FileDescriptor *fd;
+
+ LIST_FIELDS(Window, by_fd);
+ LIST_FIELDS(Window, unused);
+
+ LIST_HEAD(Context, contexts);
+};
+
+struct Context {
+ MMapCache *cache;
+ unsigned id;
+ Window *window;
+
+ LIST_FIELDS(Context, by_window);
+};
+
+struct FileDescriptor {
+ MMapCache *cache;
+ int fd;
+ bool sigbus;
+ LIST_HEAD(Window, windows);
+};
+
+struct MMapCache {
+ int n_ref;
+ unsigned n_windows;
+
+ unsigned n_hit, n_missed;
+
+ Hashmap *fds;
+ Context *contexts[MMAP_CACHE_MAX_CONTEXTS];
+
+ LIST_HEAD(Window, unused);
+ Window *last_unused;
+};
+
+#define WINDOWS_MIN 64
+
+#ifdef ENABLE_DEBUG_MMAP_CACHE
+/* Tiny windows increase mmap activity and the chance of exposing unsafe use. */
+# define WINDOW_SIZE (page_size())
+#else
+# define WINDOW_SIZE (8ULL*1024ULL*1024ULL)
+#endif
+
+MMapCache* mmap_cache_new(void) {
+ MMapCache *m;
+
+ m = new0(MMapCache, 1);
+ if (!m)
+ return NULL;
+
+ m->n_ref = 1;
+ return m;
+}
+
+MMapCache* mmap_cache_ref(MMapCache *m) {
+ assert(m);
+ assert(m->n_ref > 0);
+
+ m->n_ref++;
+ return m;
+}
+
+static void window_unlink(Window *w) {
+ Context *c;
+
+ assert(w);
+
+ if (w->ptr)
+ munmap(w->ptr, w->size);
+
+ if (w->fd)
+ LIST_REMOVE(by_fd, w->fd->windows, w);
+
+ if (w->in_unused) {
+ if (w->cache->last_unused == w)
+ w->cache->last_unused = w->unused_prev;
+
+ LIST_REMOVE(unused, w->cache->unused, w);
+ }
+
+ LIST_FOREACH(by_window, c, w->contexts) {
+ assert(c->window == w);
+ c->window = NULL;
+ }
+}
+
+static void window_invalidate(Window *w) {
+ assert(w);
+
+ if (w->invalidated)
+ return;
+
+ /* Replace the window with anonymous pages. This is useful
+ * when we hit a SIGBUS and want to make sure the file cannot
+ * trigger any further SIGBUS, possibly overrunning the sigbus
+ * queue. */
+
+ assert_se(mmap(w->ptr, w->size, w->prot, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0) == w->ptr);
+ w->invalidated = true;
+}
+
+static void window_free(Window *w) {
+ assert(w);
+
+ window_unlink(w);
+ w->cache->n_windows--;
+ free(w);
+}
+
+_pure_ static bool window_matches(Window *w, int fd, int prot, uint64_t offset, size_t size) {
+ assert(w);
+ assert(fd >= 0);
+ assert(size > 0);
+
+ return
+ w->fd &&
+ fd == w->fd->fd &&
+ prot == w->prot &&
+ offset >= w->offset &&
+ offset + size <= w->offset + w->size;
+}
+
+static Window *window_add(MMapCache *m, FileDescriptor *fd, int prot, bool keep_always, uint64_t offset, size_t size, void *ptr) {
+ Window *w;
+
+ assert(m);
+ assert(fd);
+
+ if (!m->last_unused || m->n_windows <= WINDOWS_MIN) {
+
+ /* Allocate a new window */
+ w = new0(Window, 1);
+ if (!w)
+ return NULL;
+ m->n_windows++;
+ } else {
+
+ /* Reuse an existing one */
+ w = m->last_unused;
+ window_unlink(w);
+ zero(*w);
+ }
+
+ w->cache = m;
+ w->fd = fd;
+ w->prot = prot;
+ w->keep_always = keep_always;
+ w->offset = offset;
+ w->size = size;
+ w->ptr = ptr;
+
+ LIST_PREPEND(by_fd, fd->windows, w);
+
+ return w;
+}
+
+static void context_detach_window(Context *c) {
+ Window *w;
+
+ assert(c);
+
+ if (!c->window)
+ return;
+
+ w = c->window;
+ c->window = NULL;
+ LIST_REMOVE(by_window, w->contexts, c);
+
+ if (!w->contexts && !w->keep_always) {
+ /* Not used anymore? */
+#ifdef ENABLE_DEBUG_MMAP_CACHE
+ /* Unmap unused windows immediately to expose use-after-unmap
+ * by SIGSEGV. */
+ window_free(w);
+#else
+ LIST_PREPEND(unused, c->cache->unused, w);
+ if (!c->cache->last_unused)
+ c->cache->last_unused = w;
+
+ w->in_unused = true;
+#endif
+ }
+}
+
+static void context_attach_window(Context *c, Window *w) {
+ assert(c);
+ assert(w);
+
+ if (c->window == w)
+ return;
+
+ context_detach_window(c);
+
+ if (w->in_unused) {
+ /* Used again? */
+ LIST_REMOVE(unused, c->cache->unused, w);
+ if (c->cache->last_unused == w)
+ c->cache->last_unused = w->unused_prev;
+
+ w->in_unused = false;
+ }
+
+ c->window = w;
+ LIST_PREPEND(by_window, w->contexts, c);
+}
+
+static Context *context_add(MMapCache *m, unsigned id) {
+ Context *c;
+
+ assert(m);
+
+ c = m->contexts[id];
+ if (c)
+ return c;
+
+ c = new0(Context, 1);
+ if (!c)
+ return NULL;
+
+ c->cache = m;
+ c->id = id;
+
+ assert(!m->contexts[id]);
+ m->contexts[id] = c;
+
+ return c;
+}
+
+static void context_free(Context *c) {
+ assert(c);
+
+ context_detach_window(c);
+
+ if (c->cache) {
+ assert(c->cache->contexts[c->id] == c);
+ c->cache->contexts[c->id] = NULL;
+ }
+
+ free(c);
+}
+
+static void fd_free(FileDescriptor *f) {
+ assert(f);
+
+ while (f->windows)
+ window_free(f->windows);
+
+ if (f->cache)
+ assert_se(hashmap_remove(f->cache->fds, FD_TO_PTR(f->fd)));
+
+ free(f);
+}
+
+static FileDescriptor* fd_add(MMapCache *m, int fd) {
+ FileDescriptor *f;
+ int r;
+
+ assert(m);
+ assert(fd >= 0);
+
+ f = hashmap_get(m->fds, FD_TO_PTR(fd));
+ if (f)
+ return f;
+
+ r = hashmap_ensure_allocated(&m->fds, NULL);
+ if (r < 0)
+ return NULL;
+
+ f = new0(FileDescriptor, 1);
+ if (!f)
+ return NULL;
+
+ f->cache = m;
+ f->fd = fd;
+
+ r = hashmap_put(m->fds, FD_TO_PTR(fd), f);
+ if (r < 0) {
+ free(f);
+ return NULL;
+ }
+
+ return f;
+}
+
+static void mmap_cache_free(MMapCache *m) {
+ FileDescriptor *f;
+ int i;
+
+ assert(m);
+
+ for (i = 0; i < MMAP_CACHE_MAX_CONTEXTS; i++)
+ if (m->contexts[i])
+ context_free(m->contexts[i]);
+
+ while ((f = hashmap_first(m->fds)))
+ fd_free(f);
+
+ hashmap_free(m->fds);
+
+ while (m->unused)
+ window_free(m->unused);
+
+ free(m);
+}
+
+MMapCache* mmap_cache_unref(MMapCache *m) {
+
+ if (!m)
+ return NULL;
+
+ assert(m->n_ref > 0);
+
+ m->n_ref--;
+ if (m->n_ref == 0)
+ mmap_cache_free(m);
+
+ return NULL;
+}
+
+static int make_room(MMapCache *m) {
+ assert(m);
+
+ if (!m->last_unused)
+ return 0;
+
+ window_free(m->last_unused);
+ return 1;
+}
+
+static int try_context(
+ MMapCache *m,
+ int fd,
+ int prot,
+ unsigned context,
+ bool keep_always,
+ uint64_t offset,
+ size_t size,
+ void **ret) {
+
+ Context *c;
+
+ assert(m);
+ assert(m->n_ref > 0);
+ assert(fd >= 0);
+ assert(size > 0);
+ assert(ret);
+
+ c = m->contexts[context];
+ if (!c)
+ return 0;
+
+ assert(c->id == context);
+
+ if (!c->window)
+ return 0;
+
+ if (!window_matches(c->window, fd, prot, offset, size)) {
+
+ /* Drop the reference to the window, since it's unnecessary now */
+ context_detach_window(c);
+ return 0;
+ }
+
+ if (c->window->fd->sigbus)
+ return -EIO;
+
+ c->window->keep_always = c->window->keep_always || keep_always;
+
+ *ret = (uint8_t*) c->window->ptr + (offset - c->window->offset);
+ return 1;
+}
+
+static int find_mmap(
+ MMapCache *m,
+ int fd,
+ int prot,
+ unsigned context,
+ bool keep_always,
+ uint64_t offset,
+ size_t size,
+ void **ret) {
+
+ FileDescriptor *f;
+ Window *w;
+ Context *c;
+
+ assert(m);
+ assert(m->n_ref > 0);
+ assert(fd >= 0);
+ assert(size > 0);
+
+ f = hashmap_get(m->fds, FD_TO_PTR(fd));
+ if (!f)
+ return 0;
+
+ assert(f->fd == fd);
+
+ if (f->sigbus)
+ return -EIO;
+
+ LIST_FOREACH(by_fd, w, f->windows)
+ if (window_matches(w, fd, prot, offset, size))
+ break;
+
+ if (!w)
+ return 0;
+
+ c = context_add(m, context);
+ if (!c)
+ return -ENOMEM;
+
+ context_attach_window(c, w);
+ w->keep_always = w->keep_always || keep_always;
+
+ *ret = (uint8_t*) w->ptr + (offset - w->offset);
+ return 1;
+}
+
+static int mmap_try_harder(MMapCache *m, void *addr, int fd, int prot, int flags, uint64_t offset, size_t size, void **res) {
+ void *ptr;
+
+ assert(m);
+ assert(fd >= 0);
+ assert(res);
+
+ for (;;) {
+ int r;
+
+ ptr = mmap(addr, size, prot, flags, fd, offset);
+ if (ptr != MAP_FAILED)
+ break;
+ if (errno != ENOMEM)
+ return -errno;
+
+ r = make_room(m);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOMEM;
+ }
+
+ *res = ptr;
+ return 0;
+}
+
+static int add_mmap(
+ MMapCache *m,
+ int fd,
+ int prot,
+ unsigned context,
+ bool keep_always,
+ uint64_t offset,
+ size_t size,
+ struct stat *st,
+ void **ret) {
+
+ uint64_t woffset, wsize;
+ Context *c;
+ FileDescriptor *f;
+ Window *w;
+ void *d;
+ int r;
+
+ assert(m);
+ assert(m->n_ref > 0);
+ assert(fd >= 0);
+ assert(size > 0);
+ assert(ret);
+
+ woffset = offset & ~((uint64_t) page_size() - 1ULL);
+ wsize = size + (offset - woffset);
+ wsize = PAGE_ALIGN(wsize);
+
+ if (wsize < WINDOW_SIZE) {
+ uint64_t delta;
+
+ delta = PAGE_ALIGN((WINDOW_SIZE - wsize) / 2);
+
+ if (delta > offset)
+ woffset = 0;
+ else
+ woffset -= delta;
+
+ wsize = WINDOW_SIZE;
+ }
+
+ if (st) {
+ /* Memory maps that are larger then the files
+ underneath have undefined behavior. Hence, clamp
+ things to the file size if we know it */
+
+ if (woffset >= (uint64_t) st->st_size)
+ return -EADDRNOTAVAIL;
+
+ if (woffset + wsize > (uint64_t) st->st_size)
+ wsize = PAGE_ALIGN(st->st_size - woffset);
+ }
+
+ r = mmap_try_harder(m, NULL, fd, prot, MAP_SHARED, woffset, wsize, &d);
+ if (r < 0)
+ return r;
+
+ c = context_add(m, context);
+ if (!c)
+ goto outofmem;
+
+ f = fd_add(m, fd);
+ if (!f)
+ goto outofmem;
+
+ w = window_add(m, f, prot, keep_always, woffset, wsize, d);
+ if (!w)
+ goto outofmem;
+
+ context_detach_window(c);
+ c->window = w;
+ LIST_PREPEND(by_window, w->contexts, c);
+
+ *ret = (uint8_t*) w->ptr + (offset - w->offset);
+ return 1;
+
+outofmem:
+ munmap(d, wsize);
+ return -ENOMEM;
+}
+
+int mmap_cache_get(
+ MMapCache *m,
+ int fd,
+ int prot,
+ unsigned context,
+ bool keep_always,
+ uint64_t offset,
+ size_t size,
+ struct stat *st,
+ void **ret) {
+
+ int r;
+
+ assert(m);
+ assert(m->n_ref > 0);
+ assert(fd >= 0);
+ assert(size > 0);
+ assert(ret);
+ assert(context < MMAP_CACHE_MAX_CONTEXTS);
+
+ /* Check whether the current context is the right one already */
+ r = try_context(m, fd, prot, context, keep_always, offset, size, ret);
+ if (r != 0) {
+ m->n_hit++;
+ return r;
+ }
+
+ /* Search for a matching mmap */
+ r = find_mmap(m, fd, prot, context, keep_always, offset, size, ret);
+ if (r != 0) {
+ m->n_hit++;
+ return r;
+ }
+
+ m->n_missed++;
+
+ /* Create a new mmap */
+ return add_mmap(m, fd, prot, context, keep_always, offset, size, st, ret);
+}
+
+unsigned mmap_cache_get_hit(MMapCache *m) {
+ assert(m);
+
+ return m->n_hit;
+}
+
+unsigned mmap_cache_get_missed(MMapCache *m) {
+ assert(m);
+
+ return m->n_missed;
+}
+
+static void mmap_cache_process_sigbus(MMapCache *m) {
+ bool found = false;
+ FileDescriptor *f;
+ Iterator i;
+ int r;
+
+ assert(m);
+
+ /* Iterate through all triggered pages and mark their files as
+ * invalidated */
+ for (;;) {
+ bool ours;
+ void *addr;
+
+ r = sigbus_pop(&addr);
+ if (_likely_(r == 0))
+ break;
+ if (r < 0) {
+ log_error_errno(r, "SIGBUS handling failed: %m");
+ abort();
+ }
+
+ ours = false;
+ HASHMAP_FOREACH(f, m->fds, i) {
+ Window *w;
+
+ LIST_FOREACH(by_fd, w, f->windows) {
+ if ((uint8_t*) addr >= (uint8_t*) w->ptr &&
+ (uint8_t*) addr < (uint8_t*) w->ptr + w->size) {
+ found = ours = f->sigbus = true;
+ break;
+ }
+ }
+
+ if (ours)
+ break;
+ }
+
+ /* Didn't find a matching window, give up */
+ if (!ours) {
+ log_error("Unknown SIGBUS page, aborting.");
+ abort();
+ }
+ }
+
+ /* The list of triggered pages is now empty. Now, let's remap
+ * all windows of the triggered file to anonymous maps, so
+ * that no page of the file in question is triggered again, so
+ * that we can be sure not to hit the queue size limit. */
+ if (_likely_(!found))
+ return;
+
+ HASHMAP_FOREACH(f, m->fds, i) {
+ Window *w;
+
+ if (!f->sigbus)
+ continue;
+
+ LIST_FOREACH(by_fd, w, f->windows)
+ window_invalidate(w);
+ }
+}
+
+bool mmap_cache_got_sigbus(MMapCache *m, int fd) {
+ FileDescriptor *f;
+
+ assert(m);
+ assert(fd >= 0);
+
+ mmap_cache_process_sigbus(m);
+
+ f = hashmap_get(m->fds, FD_TO_PTR(fd));
+ if (!f)
+ return false;
+
+ return f->sigbus;
+}
+
+void mmap_cache_close_fd(MMapCache *m, int fd) {
+ FileDescriptor *f;
+
+ assert(m);
+ assert(fd >= 0);
+
+ /* Make sure that any queued SIGBUS are first dispatched, so
+ * that we don't end up with a SIGBUS entry we cannot relate
+ * to any existing memory map */
+
+ mmap_cache_process_sigbus(m);
+
+ f = hashmap_get(m->fds, FD_TO_PTR(fd));
+ if (!f)
+ return;
+
+ fd_free(f);
+}
diff --git a/src/libsystemd/src/sd-journal/mmap-cache.h b/src/libsystemd/src/sd-journal/mmap-cache.h
new file mode 100644
index 0000000000..199d944647
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/mmap-cache.h
@@ -0,0 +1,49 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+#include <sys/stat.h>
+
+/* One context per object type, plus one of the header, plus one "additional" one */
+#define MMAP_CACHE_MAX_CONTEXTS 9
+
+typedef struct MMapCache MMapCache;
+
+MMapCache* mmap_cache_new(void);
+MMapCache* mmap_cache_ref(MMapCache *m);
+MMapCache* mmap_cache_unref(MMapCache *m);
+
+int mmap_cache_get(
+ MMapCache *m,
+ int fd,
+ int prot,
+ unsigned context,
+ bool keep_always,
+ uint64_t offset,
+ size_t size,
+ struct stat *st,
+ void **ret);
+void mmap_cache_close_fd(MMapCache *m, int fd);
+
+unsigned mmap_cache_get_hit(MMapCache *m);
+unsigned mmap_cache_get_missed(MMapCache *m);
+
+bool mmap_cache_got_sigbus(MMapCache *m, int fd);
diff --git a/src/libsystemd/src/sd-journal/sd-journal.c b/src/libsystemd/src/sd-journal/sd-journal.c
new file mode 100644
index 0000000000..18ca37d58f
--- /dev/null
+++ b/src/libsystemd/src/sd-journal/sd-journal.c
@@ -0,0 +1,2987 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <poll.h>
+#include <stddef.h>
+#include <sys/inotify.h>
+#include <sys/vfs.h>
+#include <unistd.h>
+
+#include <linux/magic.h>
+
+#include <systemd/sd-journal.h>
+
+#include "basic/alloc-util.h"
+#include "basic/dirent-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/formats-util.h"
+#include "basic/fs-util.h"
+#include "basic/hashmap.h"
+#include "basic/hostname-util.h"
+#include "basic/io-util.h"
+#include "basic/list.h"
+#include "basic/missing.h"
+#include "basic/path-util.h"
+#include "basic/replace-var.h"
+#include "basic/stat-util.h"
+#include "basic/stdio-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+
+#include "catalog.h"
+#include "compress.h"
+#include "journal-def.h"
+#include "journal-file.h"
+#include "journal-internal.h"
+#include "lookup3.h"
+
+#define JOURNAL_FILES_MAX 7168
+
+#define JOURNAL_FILES_RECHECK_USEC (2 * USEC_PER_SEC)
+
+#define REPLACE_VAR_MAX 256
+
+#define DEFAULT_DATA_THRESHOLD (64*1024)
+
+static void remove_file_real(sd_journal *j, JournalFile *f);
+
+static bool journal_pid_changed(sd_journal *j) {
+ assert(j);
+
+ /* We don't support people creating a journal object and
+ * keeping it around over a fork(). Let's complain. */
+
+ return j->original_pid != getpid();
+}
+
+static int journal_put_error(sd_journal *j, int r, const char *path) {
+ char *copy;
+ int k;
+
+ /* Memorize an error we encountered, and store which
+ * file/directory it was generated from. Note that we store
+ * only *one* path per error code, as the error code is the
+ * key into the hashmap, and the path is the value. This means
+ * we keep track only of all error kinds, but not of all error
+ * locations. This has the benefit that the hashmap cannot
+ * grow beyond bounds.
+ *
+ * We return an error here only if we didn't manage to
+ * memorize the real error. */
+
+ if (r >= 0)
+ return r;
+
+ k = hashmap_ensure_allocated(&j->errors, NULL);
+ if (k < 0)
+ return k;
+
+ if (path) {
+ copy = strdup(path);
+ if (!copy)
+ return -ENOMEM;
+ } else
+ copy = NULL;
+
+ k = hashmap_put(j->errors, INT_TO_PTR(r), copy);
+ if (k < 0) {
+ free(copy);
+
+ if (k == -EEXIST)
+ return 0;
+
+ return k;
+ }
+
+ return 0;
+}
+
+static void detach_location(sd_journal *j) {
+ Iterator i;
+ JournalFile *f;
+
+ assert(j);
+
+ j->current_file = NULL;
+ j->current_field = 0;
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i)
+ journal_file_reset_location(f);
+}
+
+static void reset_location(sd_journal *j) {
+ assert(j);
+
+ detach_location(j);
+ zero(j->current_location);
+}
+
+static void init_location(Location *l, LocationType type, JournalFile *f, Object *o) {
+ assert(l);
+ assert(type == LOCATION_DISCRETE || type == LOCATION_SEEK);
+ assert(f);
+ assert(o->object.type == OBJECT_ENTRY);
+
+ l->type = type;
+ l->seqnum = le64toh(o->entry.seqnum);
+ l->seqnum_id = f->header->seqnum_id;
+ l->realtime = le64toh(o->entry.realtime);
+ l->monotonic = le64toh(o->entry.monotonic);
+ l->boot_id = o->entry.boot_id;
+ l->xor_hash = le64toh(o->entry.xor_hash);
+
+ l->seqnum_set = l->realtime_set = l->monotonic_set = l->xor_hash_set = true;
+}
+
+static void set_location(sd_journal *j, JournalFile *f, Object *o) {
+ assert(j);
+ assert(f);
+ assert(o);
+
+ init_location(&j->current_location, LOCATION_DISCRETE, f, o);
+
+ j->current_file = f;
+ j->current_field = 0;
+
+ /* Let f know its candidate entry was picked. */
+ assert(f->location_type == LOCATION_SEEK);
+ f->location_type = LOCATION_DISCRETE;
+}
+
+static int match_is_valid(const void *data, size_t size) {
+ const char *b, *p;
+
+ assert(data);
+
+ if (size < 2)
+ return false;
+
+ if (startswith(data, "__"))
+ return false;
+
+ b = data;
+ for (p = b; p < b + size; p++) {
+
+ if (*p == '=')
+ return p > b;
+
+ if (*p == '_')
+ continue;
+
+ if (*p >= 'A' && *p <= 'Z')
+ continue;
+
+ if (*p >= '0' && *p <= '9')
+ continue;
+
+ return false;
+ }
+
+ return false;
+}
+
+static bool same_field(const void *_a, size_t s, const void *_b, size_t t) {
+ const uint8_t *a = _a, *b = _b;
+ size_t j;
+
+ for (j = 0; j < s && j < t; j++) {
+
+ if (a[j] != b[j])
+ return false;
+
+ if (a[j] == '=')
+ return true;
+ }
+
+ assert_not_reached("\"=\" not found");
+}
+
+static Match *match_new(Match *p, MatchType t) {
+ Match *m;
+
+ m = new0(Match, 1);
+ if (!m)
+ return NULL;
+
+ m->type = t;
+
+ if (p) {
+ m->parent = p;
+ LIST_PREPEND(matches, p->matches, m);
+ }
+
+ return m;
+}
+
+static void match_free(Match *m) {
+ assert(m);
+
+ while (m->matches)
+ match_free(m->matches);
+
+ if (m->parent)
+ LIST_REMOVE(matches, m->parent->matches, m);
+
+ free(m->data);
+ free(m);
+}
+
+static void match_free_if_empty(Match *m) {
+ if (!m || m->matches)
+ return;
+
+ match_free(m);
+}
+
+_public_ int sd_journal_add_match(sd_journal *j, const void *data, size_t size) {
+ Match *l3, *l4, *add_here = NULL, *m;
+ le64_t le_hash;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(data, -EINVAL);
+
+ if (size == 0)
+ size = strlen(data);
+
+ assert_return(match_is_valid(data, size), -EINVAL);
+
+ /* level 0: AND term
+ * level 1: OR terms
+ * level 2: AND terms
+ * level 3: OR terms
+ * level 4: concrete matches */
+
+ if (!j->level0) {
+ j->level0 = match_new(NULL, MATCH_AND_TERM);
+ if (!j->level0)
+ return -ENOMEM;
+ }
+
+ if (!j->level1) {
+ j->level1 = match_new(j->level0, MATCH_OR_TERM);
+ if (!j->level1)
+ return -ENOMEM;
+ }
+
+ if (!j->level2) {
+ j->level2 = match_new(j->level1, MATCH_AND_TERM);
+ if (!j->level2)
+ return -ENOMEM;
+ }
+
+ assert(j->level0->type == MATCH_AND_TERM);
+ assert(j->level1->type == MATCH_OR_TERM);
+ assert(j->level2->type == MATCH_AND_TERM);
+
+ le_hash = htole64(hash64(data, size));
+
+ LIST_FOREACH(matches, l3, j->level2->matches) {
+ assert(l3->type == MATCH_OR_TERM);
+
+ LIST_FOREACH(matches, l4, l3->matches) {
+ assert(l4->type == MATCH_DISCRETE);
+
+ /* Exactly the same match already? Then ignore
+ * this addition */
+ if (l4->le_hash == le_hash &&
+ l4->size == size &&
+ memcmp(l4->data, data, size) == 0)
+ return 0;
+
+ /* Same field? Then let's add this to this OR term */
+ if (same_field(data, size, l4->data, l4->size)) {
+ add_here = l3;
+ break;
+ }
+ }
+
+ if (add_here)
+ break;
+ }
+
+ if (!add_here) {
+ add_here = match_new(j->level2, MATCH_OR_TERM);
+ if (!add_here)
+ goto fail;
+ }
+
+ m = match_new(add_here, MATCH_DISCRETE);
+ if (!m)
+ goto fail;
+
+ m->le_hash = le_hash;
+ m->size = size;
+ m->data = memdup(data, size);
+ if (!m->data)
+ goto fail;
+
+ detach_location(j);
+
+ return 0;
+
+fail:
+ match_free_if_empty(add_here);
+ match_free_if_empty(j->level2);
+ match_free_if_empty(j->level1);
+ match_free_if_empty(j->level0);
+
+ return -ENOMEM;
+}
+
+_public_ int sd_journal_add_conjunction(sd_journal *j) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ if (!j->level0)
+ return 0;
+
+ if (!j->level1)
+ return 0;
+
+ if (!j->level1->matches)
+ return 0;
+
+ j->level1 = NULL;
+ j->level2 = NULL;
+
+ return 0;
+}
+
+_public_ int sd_journal_add_disjunction(sd_journal *j) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ if (!j->level0)
+ return 0;
+
+ if (!j->level1)
+ return 0;
+
+ if (!j->level2)
+ return 0;
+
+ if (!j->level2->matches)
+ return 0;
+
+ j->level2 = NULL;
+ return 0;
+}
+
+static char *match_make_string(Match *m) {
+ char *p, *r;
+ Match *i;
+ bool enclose = false;
+
+ if (!m)
+ return strdup("none");
+
+ if (m->type == MATCH_DISCRETE)
+ return strndup(m->data, m->size);
+
+ p = NULL;
+ LIST_FOREACH(matches, i, m->matches) {
+ char *t, *k;
+
+ t = match_make_string(i);
+ if (!t) {
+ free(p);
+ return NULL;
+ }
+
+ if (p) {
+ k = strjoin(p, m->type == MATCH_OR_TERM ? " OR " : " AND ", t, NULL);
+ free(p);
+ free(t);
+
+ if (!k)
+ return NULL;
+
+ p = k;
+
+ enclose = true;
+ } else
+ p = t;
+ }
+
+ if (enclose) {
+ r = strjoin("(", p, ")", NULL);
+ free(p);
+ return r;
+ }
+
+ return p;
+}
+
+char *journal_make_match_string(sd_journal *j) {
+ assert(j);
+
+ return match_make_string(j->level0);
+}
+
+_public_ void sd_journal_flush_matches(sd_journal *j) {
+ if (!j)
+ return;
+
+ if (j->level0)
+ match_free(j->level0);
+
+ j->level0 = j->level1 = j->level2 = NULL;
+
+ detach_location(j);
+}
+
+_pure_ static int compare_with_location(JournalFile *f, Location *l) {
+ assert(f);
+ assert(l);
+ assert(f->location_type == LOCATION_SEEK);
+ assert(l->type == LOCATION_DISCRETE || l->type == LOCATION_SEEK);
+
+ if (l->monotonic_set &&
+ sd_id128_equal(f->current_boot_id, l->boot_id) &&
+ l->realtime_set &&
+ f->current_realtime == l->realtime &&
+ l->xor_hash_set &&
+ f->current_xor_hash == l->xor_hash)
+ return 0;
+
+ if (l->seqnum_set &&
+ sd_id128_equal(f->header->seqnum_id, l->seqnum_id)) {
+
+ if (f->current_seqnum < l->seqnum)
+ return -1;
+ if (f->current_seqnum > l->seqnum)
+ return 1;
+ }
+
+ if (l->monotonic_set &&
+ sd_id128_equal(f->current_boot_id, l->boot_id)) {
+
+ if (f->current_monotonic < l->monotonic)
+ return -1;
+ if (f->current_monotonic > l->monotonic)
+ return 1;
+ }
+
+ if (l->realtime_set) {
+
+ if (f->current_realtime < l->realtime)
+ return -1;
+ if (f->current_realtime > l->realtime)
+ return 1;
+ }
+
+ if (l->xor_hash_set) {
+
+ if (f->current_xor_hash < l->xor_hash)
+ return -1;
+ if (f->current_xor_hash > l->xor_hash)
+ return 1;
+ }
+
+ return 0;
+}
+
+static int next_for_match(
+ sd_journal *j,
+ Match *m,
+ JournalFile *f,
+ uint64_t after_offset,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+
+ int r;
+ uint64_t np = 0;
+ Object *n;
+
+ assert(j);
+ assert(m);
+ assert(f);
+
+ if (m->type == MATCH_DISCRETE) {
+ uint64_t dp;
+
+ r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), NULL, &dp);
+ if (r <= 0)
+ return r;
+
+ return journal_file_move_to_entry_by_offset_for_data(f, dp, after_offset, direction, ret, offset);
+
+ } else if (m->type == MATCH_OR_TERM) {
+ Match *i;
+
+ /* Find the earliest match beyond after_offset */
+
+ LIST_FOREACH(matches, i, m->matches) {
+ uint64_t cp;
+
+ r = next_for_match(j, i, f, after_offset, direction, NULL, &cp);
+ if (r < 0)
+ return r;
+ else if (r > 0) {
+ if (np == 0 || (direction == DIRECTION_DOWN ? cp < np : cp > np))
+ np = cp;
+ }
+ }
+
+ if (np == 0)
+ return 0;
+
+ } else if (m->type == MATCH_AND_TERM) {
+ Match *i, *last_moved;
+
+ /* Always jump to the next matching entry and repeat
+ * this until we find an offset that matches for all
+ * matches. */
+
+ if (!m->matches)
+ return 0;
+
+ r = next_for_match(j, m->matches, f, after_offset, direction, NULL, &np);
+ if (r <= 0)
+ return r;
+
+ assert(direction == DIRECTION_DOWN ? np >= after_offset : np <= after_offset);
+ last_moved = m->matches;
+
+ LIST_LOOP_BUT_ONE(matches, i, m->matches, last_moved) {
+ uint64_t cp;
+
+ r = next_for_match(j, i, f, np, direction, NULL, &cp);
+ if (r <= 0)
+ return r;
+
+ assert(direction == DIRECTION_DOWN ? cp >= np : cp <= np);
+ if (direction == DIRECTION_DOWN ? cp > np : cp < np) {
+ np = cp;
+ last_moved = i;
+ }
+ }
+ }
+
+ assert(np > 0);
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = n;
+ if (offset)
+ *offset = np;
+
+ return 1;
+}
+
+static int find_location_for_match(
+ sd_journal *j,
+ Match *m,
+ JournalFile *f,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+
+ int r;
+
+ assert(j);
+ assert(m);
+ assert(f);
+
+ if (m->type == MATCH_DISCRETE) {
+ uint64_t dp;
+
+ r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), NULL, &dp);
+ if (r <= 0)
+ return r;
+
+ /* FIXME: missing: find by monotonic */
+
+ if (j->current_location.type == LOCATION_HEAD)
+ return journal_file_next_entry_for_data(f, NULL, 0, dp, DIRECTION_DOWN, ret, offset);
+ if (j->current_location.type == LOCATION_TAIL)
+ return journal_file_next_entry_for_data(f, NULL, 0, dp, DIRECTION_UP, ret, offset);
+ if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id))
+ return journal_file_move_to_entry_by_seqnum_for_data(f, dp, j->current_location.seqnum, direction, ret, offset);
+ if (j->current_location.monotonic_set) {
+ r = journal_file_move_to_entry_by_monotonic_for_data(f, dp, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset);
+ if (r != -ENOENT)
+ return r;
+ }
+ if (j->current_location.realtime_set)
+ return journal_file_move_to_entry_by_realtime_for_data(f, dp, j->current_location.realtime, direction, ret, offset);
+
+ return journal_file_next_entry_for_data(f, NULL, 0, dp, direction, ret, offset);
+
+ } else if (m->type == MATCH_OR_TERM) {
+ uint64_t np = 0;
+ Object *n;
+ Match *i;
+
+ /* Find the earliest match */
+
+ LIST_FOREACH(matches, i, m->matches) {
+ uint64_t cp;
+
+ r = find_location_for_match(j, i, f, direction, NULL, &cp);
+ if (r < 0)
+ return r;
+ else if (r > 0) {
+ if (np == 0 || (direction == DIRECTION_DOWN ? np > cp : np < cp))
+ np = cp;
+ }
+ }
+
+ if (np == 0)
+ return 0;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = n;
+ if (offset)
+ *offset = np;
+
+ return 1;
+
+ } else {
+ Match *i;
+ uint64_t np = 0;
+
+ assert(m->type == MATCH_AND_TERM);
+
+ /* First jump to the last match, and then find the
+ * next one where all matches match */
+
+ if (!m->matches)
+ return 0;
+
+ LIST_FOREACH(matches, i, m->matches) {
+ uint64_t cp;
+
+ r = find_location_for_match(j, i, f, direction, NULL, &cp);
+ if (r <= 0)
+ return r;
+
+ if (np == 0 || (direction == DIRECTION_DOWN ? cp > np : cp < np))
+ np = cp;
+ }
+
+ return next_for_match(j, m, f, np, direction, ret, offset);
+ }
+}
+
+static int find_location_with_matches(
+ sd_journal *j,
+ JournalFile *f,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+
+ int r;
+
+ assert(j);
+ assert(f);
+ assert(ret);
+ assert(offset);
+
+ if (!j->level0) {
+ /* No matches is simple */
+
+ if (j->current_location.type == LOCATION_HEAD)
+ return journal_file_next_entry(f, 0, DIRECTION_DOWN, ret, offset);
+ if (j->current_location.type == LOCATION_TAIL)
+ return journal_file_next_entry(f, 0, DIRECTION_UP, ret, offset);
+ if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id))
+ return journal_file_move_to_entry_by_seqnum(f, j->current_location.seqnum, direction, ret, offset);
+ if (j->current_location.monotonic_set) {
+ r = journal_file_move_to_entry_by_monotonic(f, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset);
+ if (r != -ENOENT)
+ return r;
+ }
+ if (j->current_location.realtime_set)
+ return journal_file_move_to_entry_by_realtime(f, j->current_location.realtime, direction, ret, offset);
+
+ return journal_file_next_entry(f, 0, direction, ret, offset);
+ } else
+ return find_location_for_match(j, j->level0, f, direction, ret, offset);
+}
+
+static int next_with_matches(
+ sd_journal *j,
+ JournalFile *f,
+ direction_t direction,
+ Object **ret,
+ uint64_t *offset) {
+
+ assert(j);
+ assert(f);
+ assert(ret);
+ assert(offset);
+
+ /* No matches is easy. We simple advance the file
+ * pointer by one. */
+ if (!j->level0)
+ return journal_file_next_entry(f, f->current_offset, direction, ret, offset);
+
+ /* If we have a match then we look for the next matching entry
+ * with an offset at least one step larger */
+ return next_for_match(j, j->level0, f,
+ direction == DIRECTION_DOWN ? f->current_offset + 1
+ : f->current_offset - 1,
+ direction, ret, offset);
+}
+
+static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direction) {
+ Object *c;
+ uint64_t cp, n_entries;
+ int r;
+
+ assert(j);
+ assert(f);
+
+ n_entries = le64toh(f->header->n_entries);
+
+ /* If we hit EOF before, we don't need to look into this file again
+ * unless direction changed or new entries appeared. */
+ if (f->last_direction == direction && f->location_type == LOCATION_TAIL &&
+ n_entries == f->last_n_entries)
+ return 0;
+
+ f->last_n_entries = n_entries;
+
+ if (f->last_direction == direction && f->current_offset > 0) {
+ /* LOCATION_SEEK here means we did the work in a previous
+ * iteration and the current location already points to a
+ * candidate entry. */
+ if (f->location_type != LOCATION_SEEK) {
+ r = next_with_matches(j, f, direction, &c, &cp);
+ if (r <= 0)
+ return r;
+
+ journal_file_save_location(f, c, cp);
+ }
+ } else {
+ f->last_direction = direction;
+
+ r = find_location_with_matches(j, f, direction, &c, &cp);
+ if (r <= 0)
+ return r;
+
+ journal_file_save_location(f, c, cp);
+ }
+
+ /* OK, we found the spot, now let's advance until an entry
+ * that is actually different from what we were previously
+ * looking at. This is necessary to handle entries which exist
+ * in two (or more) journal files, and which shall all be
+ * suppressed but one. */
+
+ for (;;) {
+ bool found;
+
+ if (j->current_location.type == LOCATION_DISCRETE) {
+ int k;
+
+ k = compare_with_location(f, &j->current_location);
+
+ found = direction == DIRECTION_DOWN ? k > 0 : k < 0;
+ } else
+ found = true;
+
+ if (found)
+ return 1;
+
+ r = next_with_matches(j, f, direction, &c, &cp);
+ if (r <= 0)
+ return r;
+
+ journal_file_save_location(f, c, cp);
+ }
+}
+
+static int real_journal_next(sd_journal *j, direction_t direction) {
+ JournalFile *f, *new_file = NULL;
+ Iterator i;
+ Object *o;
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i) {
+ bool found;
+
+ r = next_beyond_location(j, f, direction);
+ if (r < 0) {
+ log_debug_errno(r, "Can't iterate through %s, ignoring: %m", f->path);
+ remove_file_real(j, f);
+ continue;
+ } else if (r == 0) {
+ f->location_type = LOCATION_TAIL;
+ continue;
+ }
+
+ if (!new_file)
+ found = true;
+ else {
+ int k;
+
+ k = journal_file_compare_locations(f, new_file);
+
+ found = direction == DIRECTION_DOWN ? k < 0 : k > 0;
+ }
+
+ if (found)
+ new_file = f;
+ }
+
+ if (!new_file)
+ return 0;
+
+ r = journal_file_move_to_object(new_file, OBJECT_ENTRY, new_file->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ set_location(j, new_file, o);
+
+ return 1;
+}
+
+_public_ int sd_journal_next(sd_journal *j) {
+ return real_journal_next(j, DIRECTION_DOWN);
+}
+
+_public_ int sd_journal_previous(sd_journal *j) {
+ return real_journal_next(j, DIRECTION_UP);
+}
+
+static int real_journal_next_skip(sd_journal *j, direction_t direction, uint64_t skip) {
+ int c = 0, r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ if (skip == 0) {
+ /* If this is not a discrete skip, then at least
+ * resolve the current location */
+ if (j->current_location.type != LOCATION_DISCRETE)
+ return real_journal_next(j, direction);
+
+ return 0;
+ }
+
+ do {
+ r = real_journal_next(j, direction);
+ if (r < 0)
+ return r;
+
+ if (r == 0)
+ return c;
+
+ skip--;
+ c++;
+ } while (skip > 0);
+
+ return c;
+}
+
+_public_ int sd_journal_next_skip(sd_journal *j, uint64_t skip) {
+ return real_journal_next_skip(j, DIRECTION_DOWN, skip);
+}
+
+_public_ int sd_journal_previous_skip(sd_journal *j, uint64_t skip) {
+ return real_journal_next_skip(j, DIRECTION_UP, skip);
+}
+
+_public_ int sd_journal_get_cursor(sd_journal *j, char **cursor) {
+ Object *o;
+ int r;
+ char bid[33], sid[33];
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(cursor, -EINVAL);
+
+ if (!j->current_file || j->current_file->current_offset <= 0)
+ return -EADDRNOTAVAIL;
+
+ r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ sd_id128_to_string(j->current_file->header->seqnum_id, sid);
+ sd_id128_to_string(o->entry.boot_id, bid);
+
+ if (asprintf(cursor,
+ "s=%s;i=%"PRIx64";b=%s;m=%"PRIx64";t=%"PRIx64";x=%"PRIx64,
+ sid, le64toh(o->entry.seqnum),
+ bid, le64toh(o->entry.monotonic),
+ le64toh(o->entry.realtime),
+ le64toh(o->entry.xor_hash)) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+
+_public_ int sd_journal_seek_cursor(sd_journal *j, const char *cursor) {
+ const char *word, *state;
+ size_t l;
+ unsigned long long seqnum, monotonic, realtime, xor_hash;
+ bool
+ seqnum_id_set = false,
+ seqnum_set = false,
+ boot_id_set = false,
+ monotonic_set = false,
+ realtime_set = false,
+ xor_hash_set = false;
+ sd_id128_t seqnum_id, boot_id;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(!isempty(cursor), -EINVAL);
+
+ FOREACH_WORD_SEPARATOR(word, l, cursor, ";", state) {
+ char *item;
+ int k = 0;
+
+ if (l < 2 || word[1] != '=')
+ return -EINVAL;
+
+ item = strndup(word, l);
+ if (!item)
+ return -ENOMEM;
+
+ switch (word[0]) {
+
+ case 's':
+ seqnum_id_set = true;
+ k = sd_id128_from_string(item+2, &seqnum_id);
+ break;
+
+ case 'i':
+ seqnum_set = true;
+ if (sscanf(item+2, "%llx", &seqnum) != 1)
+ k = -EINVAL;
+ break;
+
+ case 'b':
+ boot_id_set = true;
+ k = sd_id128_from_string(item+2, &boot_id);
+ break;
+
+ case 'm':
+ monotonic_set = true;
+ if (sscanf(item+2, "%llx", &monotonic) != 1)
+ k = -EINVAL;
+ break;
+
+ case 't':
+ realtime_set = true;
+ if (sscanf(item+2, "%llx", &realtime) != 1)
+ k = -EINVAL;
+ break;
+
+ case 'x':
+ xor_hash_set = true;
+ if (sscanf(item+2, "%llx", &xor_hash) != 1)
+ k = -EINVAL;
+ break;
+ }
+
+ free(item);
+
+ if (k < 0)
+ return k;
+ }
+
+ if ((!seqnum_set || !seqnum_id_set) &&
+ (!monotonic_set || !boot_id_set) &&
+ !realtime_set)
+ return -EINVAL;
+
+ reset_location(j);
+
+ j->current_location.type = LOCATION_SEEK;
+
+ if (realtime_set) {
+ j->current_location.realtime = (uint64_t) realtime;
+ j->current_location.realtime_set = true;
+ }
+
+ if (seqnum_set && seqnum_id_set) {
+ j->current_location.seqnum = (uint64_t) seqnum;
+ j->current_location.seqnum_id = seqnum_id;
+ j->current_location.seqnum_set = true;
+ }
+
+ if (monotonic_set && boot_id_set) {
+ j->current_location.monotonic = (uint64_t) monotonic;
+ j->current_location.boot_id = boot_id;
+ j->current_location.monotonic_set = true;
+ }
+
+ if (xor_hash_set) {
+ j->current_location.xor_hash = (uint64_t) xor_hash;
+ j->current_location.xor_hash_set = true;
+ }
+
+ return 0;
+}
+
+_public_ int sd_journal_test_cursor(sd_journal *j, const char *cursor) {
+ int r;
+ Object *o;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(!isempty(cursor), -EINVAL);
+
+ if (!j->current_file || j->current_file->current_offset <= 0)
+ return -EADDRNOTAVAIL;
+
+ r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ for (;;) {
+ _cleanup_free_ char *item = NULL;
+ unsigned long long ll;
+ sd_id128_t id;
+ int k = 0;
+
+ r = extract_first_word(&cursor, &item, ";", EXTRACT_DONT_COALESCE_SEPARATORS);
+ if (r < 0)
+ return r;
+
+ if (r == 0)
+ break;
+
+ if (strlen(item) < 2 || item[1] != '=')
+ return -EINVAL;
+
+ switch (item[0]) {
+
+ case 's':
+ k = sd_id128_from_string(item+2, &id);
+ if (k < 0)
+ return k;
+ if (!sd_id128_equal(id, j->current_file->header->seqnum_id))
+ return 0;
+ break;
+
+ case 'i':
+ if (sscanf(item+2, "%llx", &ll) != 1)
+ return -EINVAL;
+ if (ll != le64toh(o->entry.seqnum))
+ return 0;
+ break;
+
+ case 'b':
+ k = sd_id128_from_string(item+2, &id);
+ if (k < 0)
+ return k;
+ if (!sd_id128_equal(id, o->entry.boot_id))
+ return 0;
+ break;
+
+ case 'm':
+ if (sscanf(item+2, "%llx", &ll) != 1)
+ return -EINVAL;
+ if (ll != le64toh(o->entry.monotonic))
+ return 0;
+ break;
+
+ case 't':
+ if (sscanf(item+2, "%llx", &ll) != 1)
+ return -EINVAL;
+ if (ll != le64toh(o->entry.realtime))
+ return 0;
+ break;
+
+ case 'x':
+ if (sscanf(item+2, "%llx", &ll) != 1)
+ return -EINVAL;
+ if (ll != le64toh(o->entry.xor_hash))
+ return 0;
+ break;
+ }
+ }
+
+ return 1;
+}
+
+
+_public_ int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ reset_location(j);
+ j->current_location.type = LOCATION_SEEK;
+ j->current_location.boot_id = boot_id;
+ j->current_location.monotonic = usec;
+ j->current_location.monotonic_set = true;
+
+ return 0;
+}
+
+_public_ int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ reset_location(j);
+ j->current_location.type = LOCATION_SEEK;
+ j->current_location.realtime = usec;
+ j->current_location.realtime_set = true;
+
+ return 0;
+}
+
+_public_ int sd_journal_seek_head(sd_journal *j) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ reset_location(j);
+ j->current_location.type = LOCATION_HEAD;
+
+ return 0;
+}
+
+_public_ int sd_journal_seek_tail(sd_journal *j) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ reset_location(j);
+ j->current_location.type = LOCATION_TAIL;
+
+ return 0;
+}
+
+static void check_network(sd_journal *j, int fd) {
+ struct statfs sfs;
+
+ assert(j);
+
+ if (j->on_network)
+ return;
+
+ if (fstatfs(fd, &sfs) < 0)
+ return;
+
+ j->on_network =
+ F_TYPE_EQUAL(sfs.f_type, CIFS_MAGIC_NUMBER) ||
+ F_TYPE_EQUAL(sfs.f_type, CODA_SUPER_MAGIC) ||
+ F_TYPE_EQUAL(sfs.f_type, NCP_SUPER_MAGIC) ||
+ F_TYPE_EQUAL(sfs.f_type, NFS_SUPER_MAGIC) ||
+ F_TYPE_EQUAL(sfs.f_type, SMB_SUPER_MAGIC);
+}
+
+static bool file_has_type_prefix(const char *prefix, const char *filename) {
+ const char *full, *tilded, *atted;
+
+ full = strjoina(prefix, ".journal");
+ tilded = strjoina(full, "~");
+ atted = strjoina(prefix, "@");
+
+ return streq(filename, full) ||
+ streq(filename, tilded) ||
+ startswith(filename, atted);
+}
+
+static bool file_type_wanted(int flags, const char *filename) {
+ assert(filename);
+
+ if (!endswith(filename, ".journal") && !endswith(filename, ".journal~"))
+ return false;
+
+ /* no flags set → every type is OK */
+ if (!(flags & (SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER)))
+ return true;
+
+ if (flags & SD_JOURNAL_SYSTEM && file_has_type_prefix("system", filename))
+ return true;
+
+ if (flags & SD_JOURNAL_CURRENT_USER) {
+ char prefix[5 + DECIMAL_STR_MAX(uid_t) + 1];
+
+ xsprintf(prefix, "user-"UID_FMT, getuid());
+
+ if (file_has_type_prefix(prefix, filename))
+ return true;
+ }
+
+ return false;
+}
+
+static bool path_has_prefix(sd_journal *j, const char *path, const char *prefix) {
+ assert(j);
+ assert(path);
+ assert(prefix);
+
+ if (j->toplevel_fd >= 0)
+ return false;
+
+ return path_startswith(path, prefix);
+}
+
+static const char *skip_slash(const char *p) {
+
+ if (!p)
+ return NULL;
+
+ while (*p == '/')
+ p++;
+
+ return p;
+}
+
+static int add_any_file(sd_journal *j, int fd, const char *path) {
+ JournalFile *f = NULL;
+ bool close_fd = false;
+ int r, k;
+
+ assert(j);
+ assert(fd >= 0 || path);
+
+ if (path && ordered_hashmap_get(j->files, path))
+ return 0;
+
+ if (ordered_hashmap_size(j->files) >= JOURNAL_FILES_MAX) {
+ log_debug("Too many open journal files, not adding %s.", path);
+ r = -ETOOMANYREFS;
+ goto fail;
+ }
+
+ if (fd < 0 && j->toplevel_fd >= 0) {
+
+ /* If there's a top-level fd defined, open the file relative to this now. (Make the path relative,
+ * explicitly, since otherwise openat() ignores the first argument.) */
+
+ fd = openat(j->toplevel_fd, skip_slash(path), O_RDONLY|O_CLOEXEC);
+ if (fd < 0) {
+ r = log_debug_errno(errno, "Failed to open journal file %s: %m", path);
+ goto fail;
+ }
+
+ close_fd = true;
+ }
+
+ r = journal_file_open(fd, path, O_RDONLY, 0, false, false, NULL, j->mmap, NULL, NULL, &f);
+ if (r < 0) {
+ if (close_fd)
+ safe_close(fd);
+ log_debug_errno(r, "Failed to open journal file %s: %m", path);
+ goto fail;
+ }
+
+ /* journal_file_dump(f); */
+
+ r = ordered_hashmap_put(j->files, f->path, f);
+ if (r < 0) {
+ f->close_fd = close_fd;
+ (void) journal_file_close(f);
+ goto fail;
+ }
+
+ if (!j->has_runtime_files && path_has_prefix(j, f->path, "/run"))
+ j->has_runtime_files = true;
+ else if (!j->has_persistent_files && path_has_prefix(j, f->path, "/var"))
+ j->has_persistent_files = true;
+
+ log_debug("File %s added.", f->path);
+
+ check_network(j, f->fd);
+
+ j->current_invalidate_counter++;
+
+ return 0;
+
+fail:
+ k = journal_put_error(j, r, path);
+ if (k < 0)
+ return k;
+
+ return r;
+}
+
+static int add_file(sd_journal *j, const char *prefix, const char *filename) {
+ const char *path;
+
+ assert(j);
+ assert(prefix);
+ assert(filename);
+
+ if (j->no_new_files)
+ return 0;
+
+ if (!file_type_wanted(j->flags, filename))
+ return 0;
+
+ path = strjoina(prefix, "/", filename);
+ return add_any_file(j, -1, path);
+}
+
+static void remove_file(sd_journal *j, const char *prefix, const char *filename) {
+ const char *path;
+ JournalFile *f;
+
+ assert(j);
+ assert(prefix);
+ assert(filename);
+
+ path = strjoina(prefix, "/", filename);
+ f = ordered_hashmap_get(j->files, path);
+ if (!f)
+ return;
+
+ remove_file_real(j, f);
+}
+
+static void remove_file_real(sd_journal *j, JournalFile *f) {
+ assert(j);
+ assert(f);
+
+ ordered_hashmap_remove(j->files, f->path);
+
+ log_debug("File %s removed.", f->path);
+
+ if (j->current_file == f) {
+ j->current_file = NULL;
+ j->current_field = 0;
+ }
+
+ if (j->unique_file == f) {
+ /* Jump to the next unique_file or NULL if that one was last */
+ j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path);
+ j->unique_offset = 0;
+ if (!j->unique_file)
+ j->unique_file_lost = true;
+ }
+
+ if (j->fields_file == f) {
+ j->fields_file = ordered_hashmap_next(j->files, j->fields_file->path);
+ j->fields_offset = 0;
+ if (!j->fields_file)
+ j->fields_file_lost = true;
+ }
+
+ (void) journal_file_close(f);
+
+ j->current_invalidate_counter++;
+}
+
+static int dirname_is_machine_id(const char *fn) {
+ sd_id128_t id, machine;
+ int r;
+
+ r = sd_id128_get_machine(&machine);
+ if (r < 0)
+ return r;
+
+ r = sd_id128_from_string(fn, &id);
+ if (r < 0)
+ return r;
+
+ return sd_id128_equal(id, machine);
+}
+
+static int add_directory(sd_journal *j, const char *prefix, const char *dirname) {
+ _cleanup_free_ char *path = NULL;
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de = NULL;
+ Directory *m;
+ int r, k;
+
+ assert(j);
+ assert(prefix);
+
+ /* Adds a journal file directory to watch. If the directory is already tracked this updates the inotify watch
+ * and reenumerates directory contents */
+
+ if (dirname)
+ path = strjoin(prefix, "/", dirname, NULL);
+ else
+ path = strdup(prefix);
+ if (!path) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ log_debug("Considering directory %s.", path);
+
+ /* We consider everything local that is in a directory for the local machine ID, or that is stored in /run */
+ if ((j->flags & SD_JOURNAL_LOCAL_ONLY) &&
+ !((dirname && dirname_is_machine_id(dirname) > 0) || path_has_prefix(j, path, "/run")))
+ return 0;
+
+
+ if (j->toplevel_fd < 0)
+ d = opendir(path);
+ else
+ /* Open the specified directory relative to the the toplevel fd. Enforce that the path specified is
+ * relative, by dropping the initial slash */
+ d = xopendirat(j->toplevel_fd, skip_slash(path), 0);
+ if (!d) {
+ r = log_debug_errno(errno, "Failed to open directory %s: %m", path);
+ goto fail;
+ }
+
+ m = hashmap_get(j->directories_by_path, path);
+ if (!m) {
+ m = new0(Directory, 1);
+ if (!m) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ m->is_root = false;
+ m->path = path;
+
+ if (hashmap_put(j->directories_by_path, m->path, m) < 0) {
+ free(m);
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ path = NULL; /* avoid freeing in cleanup */
+ j->current_invalidate_counter++;
+
+ log_debug("Directory %s added.", m->path);
+
+ } else if (m->is_root)
+ return 0;
+
+ if (m->wd <= 0 && j->inotify_fd >= 0) {
+ /* Watch this directory, if it not being watched yet. */
+
+ m->wd = inotify_add_watch_fd(j->inotify_fd, dirfd(d),
+ IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB|IN_DELETE|
+ IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_MOVED_FROM|
+ IN_ONLYDIR);
+
+ if (m->wd > 0 && hashmap_put(j->directories_by_wd, INT_TO_PTR(m->wd), m) < 0)
+ inotify_rm_watch(j->inotify_fd, m->wd);
+ }
+
+ FOREACH_DIRENT_ALL(de, d, r = log_debug_errno(errno, "Failed to read directory %s: %m", m->path); goto fail) {
+
+ if (dirent_is_file_with_suffix(de, ".journal") ||
+ dirent_is_file_with_suffix(de, ".journal~"))
+ (void) add_file(j, m->path, de->d_name);
+ }
+
+ check_network(j, dirfd(d));
+
+ return 0;
+
+fail:
+ k = journal_put_error(j, r, path ?: prefix);
+ if (k < 0)
+ return k;
+
+ return r;
+}
+
+static int add_root_directory(sd_journal *j, const char *p, bool missing_ok) {
+
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+ Directory *m;
+ int r, k;
+
+ assert(j);
+
+ /* Adds a root directory to our set of directories to use. If the root directory is already in the set, we
+ * update the inotify logic, and renumerate the directory entries. This call may hence be called to initially
+ * populate the set, as well as to update it later. */
+
+ if (p) {
+ /* If there's a path specified, use it. */
+
+ if ((j->flags & SD_JOURNAL_RUNTIME_ONLY) &&
+ !path_has_prefix(j, p, "/run"))
+ return -EINVAL;
+
+ if (j->prefix)
+ p = strjoina(j->prefix, p);
+
+ if (j->toplevel_fd < 0)
+ d = opendir(p);
+ else
+ d = xopendirat(j->toplevel_fd, skip_slash(p), 0);
+
+ if (!d) {
+ if (errno == ENOENT && missing_ok)
+ return 0;
+
+ r = log_debug_errno(errno, "Failed to open root directory %s: %m", p);
+ goto fail;
+ }
+ } else {
+ int dfd;
+
+ /* If there's no path specified, then we use the top-level fd itself. We duplicate the fd here, since
+ * opendir() will take possession of the fd, and close it, which we don't want. */
+
+ p = "."; /* store this as "." in the directories hashmap */
+
+ dfd = fcntl(j->toplevel_fd, F_DUPFD_CLOEXEC, 3);
+ if (dfd < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ d = fdopendir(dfd);
+ if (!d) {
+ r = -errno;
+ safe_close(dfd);
+ goto fail;
+ }
+
+ rewinddir(d);
+ }
+
+ m = hashmap_get(j->directories_by_path, p);
+ if (!m) {
+ m = new0(Directory, 1);
+ if (!m) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ m->is_root = true;
+
+ m->path = strdup(p);
+ if (!m->path) {
+ free(m);
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (hashmap_put(j->directories_by_path, m->path, m) < 0) {
+ free(m->path);
+ free(m);
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ j->current_invalidate_counter++;
+
+ log_debug("Root directory %s added.", m->path);
+
+ } else if (!m->is_root)
+ return 0;
+
+ if (m->wd <= 0 && j->inotify_fd >= 0) {
+
+ m->wd = inotify_add_watch_fd(j->inotify_fd, dirfd(d),
+ IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB|IN_DELETE|
+ IN_ONLYDIR);
+
+ if (m->wd > 0 && hashmap_put(j->directories_by_wd, INT_TO_PTR(m->wd), m) < 0)
+ inotify_rm_watch(j->inotify_fd, m->wd);
+ }
+
+ if (j->no_new_files)
+ return 0;
+
+ FOREACH_DIRENT_ALL(de, d, r = log_debug_errno(errno, "Failed to read directory %s: %m", m->path); goto fail) {
+ sd_id128_t id;
+
+ if (dirent_is_file_with_suffix(de, ".journal") ||
+ dirent_is_file_with_suffix(de, ".journal~"))
+ (void) add_file(j, m->path, de->d_name);
+ else if (IN_SET(de->d_type, DT_DIR, DT_LNK, DT_UNKNOWN) &&
+ sd_id128_from_string(de->d_name, &id) >= 0)
+ (void) add_directory(j, m->path, de->d_name);
+ }
+
+ check_network(j, dirfd(d));
+
+ return 0;
+
+fail:
+ k = journal_put_error(j, r, p);
+ if (k < 0)
+ return k;
+
+ return r;
+}
+
+static void remove_directory(sd_journal *j, Directory *d) {
+ assert(j);
+
+ if (d->wd > 0) {
+ hashmap_remove(j->directories_by_wd, INT_TO_PTR(d->wd));
+
+ if (j->inotify_fd >= 0)
+ inotify_rm_watch(j->inotify_fd, d->wd);
+ }
+
+ hashmap_remove(j->directories_by_path, d->path);
+
+ if (d->is_root)
+ log_debug("Root directory %s removed.", d->path);
+ else
+ log_debug("Directory %s removed.", d->path);
+
+ free(d->path);
+ free(d);
+}
+
+static int add_search_paths(sd_journal *j) {
+
+ static const char search_paths[] =
+ "/run/log/journal\0"
+ "/var/log/journal\0";
+ const char *p;
+
+ assert(j);
+
+ /* We ignore most errors here, since the idea is to only open
+ * what's actually accessible, and ignore the rest. */
+
+ NULSTR_FOREACH(p, search_paths)
+ (void) add_root_directory(j, p, true);
+
+ return 0;
+}
+
+static int add_current_paths(sd_journal *j) {
+ Iterator i;
+ JournalFile *f;
+
+ assert(j);
+ assert(j->no_new_files);
+
+ /* Simply adds all directories for files we have open as directories. We don't expect errors here, so we
+ * treat them as fatal. */
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i) {
+ _cleanup_free_ char *dir;
+ int r;
+
+ dir = dirname_malloc(f->path);
+ if (!dir)
+ return -ENOMEM;
+
+ r = add_directory(j, dir, NULL);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int allocate_inotify(sd_journal *j) {
+ assert(j);
+
+ if (j->inotify_fd < 0) {
+ j->inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
+ if (j->inotify_fd < 0)
+ return -errno;
+ }
+
+ return hashmap_ensure_allocated(&j->directories_by_wd, NULL);
+}
+
+static sd_journal *journal_new(int flags, const char *path) {
+ sd_journal *j;
+
+ j = new0(sd_journal, 1);
+ if (!j)
+ return NULL;
+
+ j->original_pid = getpid();
+ j->toplevel_fd = -1;
+ j->inotify_fd = -1;
+ j->flags = flags;
+ j->data_threshold = DEFAULT_DATA_THRESHOLD;
+
+ if (path) {
+ j->path = strdup(path);
+ if (!j->path)
+ goto fail;
+ }
+
+ j->files = ordered_hashmap_new(&string_hash_ops);
+ j->directories_by_path = hashmap_new(&string_hash_ops);
+ j->mmap = mmap_cache_new();
+ if (!j->files || !j->directories_by_path || !j->mmap)
+ goto fail;
+
+ return j;
+
+fail:
+ sd_journal_close(j);
+ return NULL;
+}
+
+_public_ int sd_journal_open(sd_journal **ret, int flags) {
+ sd_journal *j;
+ int r;
+
+ assert_return(ret, -EINVAL);
+ assert_return((flags & ~(SD_JOURNAL_LOCAL_ONLY|SD_JOURNAL_RUNTIME_ONLY|SD_JOURNAL_SYSTEM|SD_JOURNAL_CURRENT_USER)) == 0, -EINVAL);
+
+ j = journal_new(flags, NULL);
+ if (!j)
+ return -ENOMEM;
+
+ r = add_search_paths(j);
+ if (r < 0)
+ goto fail;
+
+ *ret = j;
+ return 0;
+
+fail:
+ sd_journal_close(j);
+
+ return r;
+}
+
+_public_ int sd_journal_open_container(sd_journal **ret, const char *machine, int flags) {
+ _cleanup_free_ char *root = NULL, *class = NULL;
+ sd_journal *j;
+ char *p;
+ int r;
+
+ /* This is pretty much deprecated, people should use machined's OpenMachineRootDirectory() call instead in
+ * combination with sd_journal_open_directory_fd(). */
+
+ assert_return(machine, -EINVAL);
+ assert_return(ret, -EINVAL);
+ assert_return((flags & ~(SD_JOURNAL_LOCAL_ONLY|SD_JOURNAL_SYSTEM)) == 0, -EINVAL);
+ assert_return(machine_name_is_valid(machine), -EINVAL);
+
+ p = strjoina("/run/systemd/machines/", machine);
+ r = parse_env_file(p, NEWLINE, "ROOT", &root, "CLASS", &class, NULL);
+ if (r == -ENOENT)
+ return -EHOSTDOWN;
+ if (r < 0)
+ return r;
+ if (!root)
+ return -ENODATA;
+
+ if (!streq_ptr(class, "container"))
+ return -EIO;
+
+ j = journal_new(flags, NULL);
+ if (!j)
+ return -ENOMEM;
+
+ j->prefix = root;
+ root = NULL;
+
+ r = add_search_paths(j);
+ if (r < 0)
+ goto fail;
+
+ *ret = j;
+ return 0;
+
+fail:
+ sd_journal_close(j);
+ return r;
+}
+
+_public_ int sd_journal_open_directory(sd_journal **ret, const char *path, int flags) {
+ sd_journal *j;
+ int r;
+
+ assert_return(ret, -EINVAL);
+ assert_return(path, -EINVAL);
+ assert_return((flags & ~SD_JOURNAL_OS_ROOT) == 0, -EINVAL);
+
+ j = journal_new(flags, path);
+ if (!j)
+ return -ENOMEM;
+
+ if (flags & SD_JOURNAL_OS_ROOT)
+ r = add_search_paths(j);
+ else
+ r = add_root_directory(j, path, false);
+ if (r < 0)
+ goto fail;
+
+ *ret = j;
+ return 0;
+
+fail:
+ sd_journal_close(j);
+ return r;
+}
+
+_public_ int sd_journal_open_files(sd_journal **ret, const char **paths, int flags) {
+ sd_journal *j;
+ const char **path;
+ int r;
+
+ assert_return(ret, -EINVAL);
+ assert_return(flags == 0, -EINVAL);
+
+ j = journal_new(flags, NULL);
+ if (!j)
+ return -ENOMEM;
+
+ STRV_FOREACH(path, paths) {
+ r = add_any_file(j, -1, *path);
+ if (r < 0)
+ goto fail;
+ }
+
+ j->no_new_files = true;
+
+ *ret = j;
+ return 0;
+
+fail:
+ sd_journal_close(j);
+ return r;
+}
+
+_public_ int sd_journal_open_directory_fd(sd_journal **ret, int fd, int flags) {
+ sd_journal *j;
+ struct stat st;
+ int r;
+
+ assert_return(ret, -EINVAL);
+ assert_return(fd >= 0, -EBADF);
+ assert_return((flags & ~SD_JOURNAL_OS_ROOT) == 0, -EINVAL);
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+
+ if (!S_ISDIR(st.st_mode))
+ return -EBADFD;
+
+ j = journal_new(flags, NULL);
+ if (!j)
+ return -ENOMEM;
+
+ j->toplevel_fd = fd;
+
+ if (flags & SD_JOURNAL_OS_ROOT)
+ r = add_search_paths(j);
+ else
+ r = add_root_directory(j, NULL, false);
+ if (r < 0)
+ goto fail;
+
+ *ret = j;
+ return 0;
+
+fail:
+ sd_journal_close(j);
+ return r;
+}
+
+_public_ int sd_journal_open_files_fd(sd_journal **ret, int fds[], unsigned n_fds, int flags) {
+ Iterator iterator;
+ JournalFile *f;
+ sd_journal *j;
+ unsigned i;
+ int r;
+
+ assert_return(ret, -EINVAL);
+ assert_return(n_fds > 0, -EBADF);
+ assert_return(flags == 0, -EINVAL);
+
+ j = journal_new(flags, NULL);
+ if (!j)
+ return -ENOMEM;
+
+ for (i = 0; i < n_fds; i++) {
+ struct stat st;
+
+ if (fds[i] < 0) {
+ r = -EBADF;
+ goto fail;
+ }
+
+ if (fstat(fds[i], &st) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ if (!S_ISREG(st.st_mode)) {
+ r = -EBADFD;
+ goto fail;
+ }
+
+ r = add_any_file(j, fds[i], NULL);
+ if (r < 0)
+ goto fail;
+ }
+
+ j->no_new_files = true;
+ j->no_inotify = true;
+
+ *ret = j;
+ return 0;
+
+fail:
+ /* If we fail, make sure we don't take possession of the files we managed to make use of successfully, and they
+ * remain open */
+ ORDERED_HASHMAP_FOREACH(f, j->files, iterator)
+ f->close_fd = false;
+
+ sd_journal_close(j);
+ return r;
+}
+
+_public_ void sd_journal_close(sd_journal *j) {
+ Directory *d;
+ JournalFile *f;
+ char *p;
+
+ if (!j)
+ return;
+
+ sd_journal_flush_matches(j);
+
+ while ((f = ordered_hashmap_steal_first(j->files)))
+ (void) journal_file_close(f);
+
+ ordered_hashmap_free(j->files);
+
+ while ((d = hashmap_first(j->directories_by_path)))
+ remove_directory(j, d);
+
+ while ((d = hashmap_first(j->directories_by_wd)))
+ remove_directory(j, d);
+
+ hashmap_free(j->directories_by_path);
+ hashmap_free(j->directories_by_wd);
+
+ safe_close(j->inotify_fd);
+
+ if (j->mmap) {
+ log_debug("mmap cache statistics: %u hit, %u miss", mmap_cache_get_hit(j->mmap), mmap_cache_get_missed(j->mmap));
+ mmap_cache_unref(j->mmap);
+ }
+
+ while ((p = hashmap_steal_first(j->errors)))
+ free(p);
+ hashmap_free(j->errors);
+
+ free(j->path);
+ free(j->prefix);
+ free(j->unique_field);
+ free(j->fields_buffer);
+ free(j);
+}
+
+_public_ int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret) {
+ Object *o;
+ JournalFile *f;
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(ret, -EINVAL);
+
+ f = j->current_file;
+ if (!f)
+ return -EADDRNOTAVAIL;
+
+ if (f->current_offset <= 0)
+ return -EADDRNOTAVAIL;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ *ret = le64toh(o->entry.realtime);
+ return 0;
+}
+
+_public_ int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id) {
+ Object *o;
+ JournalFile *f;
+ int r;
+ sd_id128_t id;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ f = j->current_file;
+ if (!f)
+ return -EADDRNOTAVAIL;
+
+ if (f->current_offset <= 0)
+ return -EADDRNOTAVAIL;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ if (ret_boot_id)
+ *ret_boot_id = o->entry.boot_id;
+ else {
+ r = sd_id128_get_boot(&id);
+ if (r < 0)
+ return r;
+
+ if (!sd_id128_equal(id, o->entry.boot_id))
+ return -ESTALE;
+ }
+
+ if (ret)
+ *ret = le64toh(o->entry.monotonic);
+
+ return 0;
+}
+
+static bool field_is_valid(const char *field) {
+ const char *p;
+
+ assert(field);
+
+ if (isempty(field))
+ return false;
+
+ if (startswith(field, "__"))
+ return false;
+
+ for (p = field; *p; p++) {
+
+ if (*p == '_')
+ continue;
+
+ if (*p >= 'A' && *p <= 'Z')
+ continue;
+
+ if (*p >= '0' && *p <= '9')
+ continue;
+
+ return false;
+ }
+
+ return true;
+}
+
+_public_ int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *size) {
+ JournalFile *f;
+ uint64_t i, n;
+ size_t field_length;
+ int r;
+ Object *o;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(field, -EINVAL);
+ assert_return(data, -EINVAL);
+ assert_return(size, -EINVAL);
+ assert_return(field_is_valid(field), -EINVAL);
+
+ f = j->current_file;
+ if (!f)
+ return -EADDRNOTAVAIL;
+
+ if (f->current_offset <= 0)
+ return -EADDRNOTAVAIL;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ field_length = strlen(field);
+
+ n = journal_file_entry_n_items(o);
+ for (i = 0; i < n; i++) {
+ uint64_t p, l;
+ le64_t le_hash;
+ size_t t;
+ int compression;
+
+ p = le64toh(o->entry.items[i].object_offset);
+ le_hash = o->entry.items[i].hash;
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le_hash != o->data.hash)
+ return -EBADMSG;
+
+ l = le64toh(o->object.size) - offsetof(Object, data.payload);
+
+ compression = o->object.flags & OBJECT_COMPRESSION_MASK;
+ if (compression) {
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ r = decompress_startswith(compression,
+ o->data.payload, l,
+ &f->compress_buffer, &f->compress_buffer_size,
+ field, field_length, '=');
+ if (r < 0)
+ log_debug_errno(r, "Cannot decompress %s object of length %"PRIu64" at offset "OFSfmt": %m",
+ object_compressed_to_string(compression), l, p);
+ else if (r > 0) {
+
+ size_t rsize;
+
+ r = decompress_blob(compression,
+ o->data.payload, l,
+ &f->compress_buffer, &f->compress_buffer_size, &rsize,
+ j->data_threshold);
+ if (r < 0)
+ return r;
+
+ *data = f->compress_buffer;
+ *size = (size_t) rsize;
+
+ return 0;
+ }
+#else
+ return -EPROTONOSUPPORT;
+#endif
+ } else if (l >= field_length+1 &&
+ memcmp(o->data.payload, field, field_length) == 0 &&
+ o->data.payload[field_length] == '=') {
+
+ t = (size_t) l;
+
+ if ((uint64_t) t != l)
+ return -E2BIG;
+
+ *data = o->data.payload;
+ *size = t;
+
+ return 0;
+ }
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+ if (r < 0)
+ return r;
+ }
+
+ return -ENOENT;
+}
+
+static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **data, size_t *size) {
+ size_t t;
+ uint64_t l;
+ int compression;
+
+ l = le64toh(o->object.size) - offsetof(Object, data.payload);
+ t = (size_t) l;
+
+ /* We can't read objects larger than 4G on a 32bit machine */
+ if ((uint64_t) t != l)
+ return -E2BIG;
+
+ compression = o->object.flags & OBJECT_COMPRESSION_MASK;
+ if (compression) {
+#if defined(HAVE_XZ) || defined(HAVE_LZ4)
+ size_t rsize;
+ int r;
+
+ r = decompress_blob(compression,
+ o->data.payload, l, &f->compress_buffer,
+ &f->compress_buffer_size, &rsize, j->data_threshold);
+ if (r < 0)
+ return r;
+
+ *data = f->compress_buffer;
+ *size = (size_t) rsize;
+#else
+ return -EPROTONOSUPPORT;
+#endif
+ } else {
+ *data = o->data.payload;
+ *size = t;
+ }
+
+ return 0;
+}
+
+_public_ int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *size) {
+ JournalFile *f;
+ uint64_t p, n;
+ le64_t le_hash;
+ int r;
+ Object *o;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(data, -EINVAL);
+ assert_return(size, -EINVAL);
+
+ f = j->current_file;
+ if (!f)
+ return -EADDRNOTAVAIL;
+
+ if (f->current_offset <= 0)
+ return -EADDRNOTAVAIL;
+
+ r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+ if (r < 0)
+ return r;
+
+ n = journal_file_entry_n_items(o);
+ if (j->current_field >= n)
+ return 0;
+
+ p = le64toh(o->entry.items[j->current_field].object_offset);
+ le_hash = o->entry.items[j->current_field].hash;
+ r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+ if (r < 0)
+ return r;
+
+ if (le_hash != o->data.hash)
+ return -EBADMSG;
+
+ r = return_data(j, f, o, data, size);
+ if (r < 0)
+ return r;
+
+ j->current_field++;
+
+ return 1;
+}
+
+_public_ void sd_journal_restart_data(sd_journal *j) {
+ if (!j)
+ return;
+
+ j->current_field = 0;
+}
+
+_public_ int sd_journal_get_fd(sd_journal *j) {
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ if (j->no_inotify)
+ return -EMEDIUMTYPE;
+
+ if (j->inotify_fd >= 0)
+ return j->inotify_fd;
+
+ r = allocate_inotify(j);
+ if (r < 0)
+ return r;
+
+ log_debug("Reiterating files to get inotify watches established");
+
+ /* Iterate through all dirs again, to add them to the
+ * inotify */
+ if (j->no_new_files)
+ r = add_current_paths(j);
+ else if (j->toplevel_fd >= 0)
+ r = add_root_directory(j, NULL, false);
+ else if (j->path)
+ r = add_root_directory(j, j->path, true);
+ else
+ r = add_search_paths(j);
+ if (r < 0)
+ return r;
+
+ return j->inotify_fd;
+}
+
+_public_ int sd_journal_get_events(sd_journal *j) {
+ int fd;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ fd = sd_journal_get_fd(j);
+ if (fd < 0)
+ return fd;
+
+ return POLLIN;
+}
+
+_public_ int sd_journal_get_timeout(sd_journal *j, uint64_t *timeout_usec) {
+ int fd;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(timeout_usec, -EINVAL);
+
+ fd = sd_journal_get_fd(j);
+ if (fd < 0)
+ return fd;
+
+ if (!j->on_network) {
+ *timeout_usec = (uint64_t) -1;
+ return 0;
+ }
+
+ /* If we are on the network we need to regularly check for
+ * changes manually */
+
+ *timeout_usec = j->last_process_usec + JOURNAL_FILES_RECHECK_USEC;
+ return 1;
+}
+
+static void process_inotify_event(sd_journal *j, struct inotify_event *e) {
+ Directory *d;
+
+ assert(j);
+ assert(e);
+
+ /* Is this a subdirectory we watch? */
+ d = hashmap_get(j->directories_by_wd, INT_TO_PTR(e->wd));
+ if (d) {
+ sd_id128_t id;
+
+ if (!(e->mask & IN_ISDIR) && e->len > 0 &&
+ (endswith(e->name, ".journal") ||
+ endswith(e->name, ".journal~"))) {
+
+ /* Event for a journal file */
+
+ if (e->mask & (IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB))
+ (void) add_file(j, d->path, e->name);
+ else if (e->mask & (IN_DELETE|IN_MOVED_FROM|IN_UNMOUNT))
+ remove_file(j, d->path, e->name);
+
+ } else if (!d->is_root && e->len == 0) {
+
+ /* Event for a subdirectory */
+
+ if (e->mask & (IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT))
+ remove_directory(j, d);
+
+ } else if (d->is_root && (e->mask & IN_ISDIR) && e->len > 0 && sd_id128_from_string(e->name, &id) >= 0) {
+
+ /* Event for root directory */
+
+ if (e->mask & (IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB))
+ (void) add_directory(j, d->path, e->name);
+ }
+
+ return;
+ }
+
+ if (e->mask & IN_IGNORED)
+ return;
+
+ log_debug("Unknown inotify event.");
+}
+
+static int determine_change(sd_journal *j) {
+ bool b;
+
+ assert(j);
+
+ b = j->current_invalidate_counter != j->last_invalidate_counter;
+ j->last_invalidate_counter = j->current_invalidate_counter;
+
+ return b ? SD_JOURNAL_INVALIDATE : SD_JOURNAL_APPEND;
+}
+
+_public_ int sd_journal_process(sd_journal *j) {
+ bool got_something = false;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ j->last_process_usec = now(CLOCK_MONOTONIC);
+
+ for (;;) {
+ union inotify_event_buffer buffer;
+ struct inotify_event *e;
+ ssize_t l;
+
+ l = read(j->inotify_fd, &buffer, sizeof(buffer));
+ if (l < 0) {
+ if (errno == EAGAIN || errno == EINTR)
+ return got_something ? determine_change(j) : SD_JOURNAL_NOP;
+
+ return -errno;
+ }
+
+ got_something = true;
+
+ FOREACH_INOTIFY_EVENT(e, buffer, l)
+ process_inotify_event(j, e);
+ }
+}
+
+_public_ int sd_journal_wait(sd_journal *j, uint64_t timeout_usec) {
+ int r;
+ uint64_t t;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ if (j->inotify_fd < 0) {
+
+ /* This is the first invocation, hence create the
+ * inotify watch */
+ r = sd_journal_get_fd(j);
+ if (r < 0)
+ return r;
+
+ /* The journal might have changed since the context
+ * object was created and we weren't watching before,
+ * hence don't wait for anything, and return
+ * immediately. */
+ return determine_change(j);
+ }
+
+ r = sd_journal_get_timeout(j, &t);
+ if (r < 0)
+ return r;
+
+ if (t != (uint64_t) -1) {
+ usec_t n;
+
+ n = now(CLOCK_MONOTONIC);
+ t = t > n ? t - n : 0;
+
+ if (timeout_usec == (uint64_t) -1 || timeout_usec > t)
+ timeout_usec = t;
+ }
+
+ do {
+ r = fd_wait_for_event(j->inotify_fd, POLLIN, timeout_usec);
+ } while (r == -EINTR);
+
+ if (r < 0)
+ return r;
+
+ return sd_journal_process(j);
+}
+
+_public_ int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to) {
+ Iterator i;
+ JournalFile *f;
+ bool first = true;
+ uint64_t fmin = 0, tmax = 0;
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(from || to, -EINVAL);
+ assert_return(from != to, -EINVAL);
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i) {
+ usec_t fr, t;
+
+ r = journal_file_get_cutoff_realtime_usec(f, &fr, &t);
+ if (r == -ENOENT)
+ continue;
+ if (r < 0)
+ return r;
+ if (r == 0)
+ continue;
+
+ if (first) {
+ fmin = fr;
+ tmax = t;
+ first = false;
+ } else {
+ fmin = MIN(fr, fmin);
+ tmax = MAX(t, tmax);
+ }
+ }
+
+ if (from)
+ *from = fmin;
+ if (to)
+ *to = tmax;
+
+ return first ? 0 : 1;
+}
+
+_public_ int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to) {
+ Iterator i;
+ JournalFile *f;
+ bool found = false;
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(from || to, -EINVAL);
+ assert_return(from != to, -EINVAL);
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i) {
+ usec_t fr, t;
+
+ r = journal_file_get_cutoff_monotonic_usec(f, boot_id, &fr, &t);
+ if (r == -ENOENT)
+ continue;
+ if (r < 0)
+ return r;
+ if (r == 0)
+ continue;
+
+ if (found) {
+ if (from)
+ *from = MIN(fr, *from);
+ if (to)
+ *to = MAX(t, *to);
+ } else {
+ if (from)
+ *from = fr;
+ if (to)
+ *to = t;
+ found = true;
+ }
+ }
+
+ return found;
+}
+
+void journal_print_header(sd_journal *j) {
+ Iterator i;
+ JournalFile *f;
+ bool newline = false;
+
+ assert(j);
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i) {
+ if (newline)
+ putchar('\n');
+ else
+ newline = true;
+
+ journal_file_print_header(f);
+ }
+}
+
+_public_ int sd_journal_get_usage(sd_journal *j, uint64_t *bytes) {
+ Iterator i;
+ JournalFile *f;
+ uint64_t sum = 0;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(bytes, -EINVAL);
+
+ ORDERED_HASHMAP_FOREACH(f, j->files, i) {
+ struct stat st;
+
+ if (fstat(f->fd, &st) < 0)
+ return -errno;
+
+ sum += (uint64_t) st.st_blocks * 512ULL;
+ }
+
+ *bytes = sum;
+ return 0;
+}
+
+_public_ int sd_journal_query_unique(sd_journal *j, const char *field) {
+ char *f;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(!isempty(field), -EINVAL);
+ assert_return(field_is_valid(field), -EINVAL);
+
+ f = strdup(field);
+ if (!f)
+ return -ENOMEM;
+
+ free(j->unique_field);
+ j->unique_field = f;
+ j->unique_file = NULL;
+ j->unique_offset = 0;
+ j->unique_file_lost = false;
+
+ return 0;
+}
+
+_public_ int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l) {
+ size_t k;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(data, -EINVAL);
+ assert_return(l, -EINVAL);
+ assert_return(j->unique_field, -EINVAL);
+
+ k = strlen(j->unique_field);
+
+ if (!j->unique_file) {
+ if (j->unique_file_lost)
+ return 0;
+
+ j->unique_file = ordered_hashmap_first(j->files);
+ if (!j->unique_file)
+ return 0;
+
+ j->unique_offset = 0;
+ }
+
+ for (;;) {
+ JournalFile *of;
+ Iterator i;
+ Object *o;
+ const void *odata;
+ size_t ol;
+ bool found;
+ int r;
+
+ /* Proceed to next data object in the field's linked list */
+ if (j->unique_offset == 0) {
+ r = journal_file_find_field_object(j->unique_file, j->unique_field, k, &o, NULL);
+ if (r < 0)
+ return r;
+
+ j->unique_offset = r > 0 ? le64toh(o->field.head_data_offset) : 0;
+ } else {
+ r = journal_file_move_to_object(j->unique_file, OBJECT_DATA, j->unique_offset, &o);
+ if (r < 0)
+ return r;
+
+ j->unique_offset = le64toh(o->data.next_field_offset);
+ }
+
+ /* We reached the end of the list? Then start again, with the next file */
+ if (j->unique_offset == 0) {
+ j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path);
+ if (!j->unique_file)
+ return 0;
+
+ continue;
+ }
+
+ /* We do not use OBJECT_DATA context here, but OBJECT_UNUSED
+ * instead, so that we can look at this data object at the same
+ * time as one on another file */
+ r = journal_file_move_to_object(j->unique_file, OBJECT_UNUSED, j->unique_offset, &o);
+ if (r < 0)
+ return r;
+
+ /* Let's do the type check by hand, since we used 0 context above. */
+ if (o->object.type != OBJECT_DATA) {
+ log_debug("%s:offset " OFSfmt ": object has type %d, expected %d",
+ j->unique_file->path, j->unique_offset,
+ o->object.type, OBJECT_DATA);
+ return -EBADMSG;
+ }
+
+ r = return_data(j, j->unique_file, o, &odata, &ol);
+ if (r < 0)
+ return r;
+
+ /* Check if we have at least the field name and "=". */
+ if (ol <= k) {
+ log_debug("%s:offset " OFSfmt ": object has size %zu, expected at least %zu",
+ j->unique_file->path, j->unique_offset,
+ ol, k + 1);
+ return -EBADMSG;
+ }
+
+ if (memcmp(odata, j->unique_field, k) || ((const char*) odata)[k] != '=') {
+ log_debug("%s:offset " OFSfmt ": object does not start with \"%s=\"",
+ j->unique_file->path, j->unique_offset,
+ j->unique_field);
+ return -EBADMSG;
+ }
+
+ /* OK, now let's see if we already returned this data
+ * object by checking if it exists in the earlier
+ * traversed files. */
+ found = false;
+ ORDERED_HASHMAP_FOREACH(of, j->files, i) {
+ if (of == j->unique_file)
+ break;
+
+ /* Skip this file it didn't have any fields indexed */
+ if (JOURNAL_HEADER_CONTAINS(of->header, n_fields) && le64toh(of->header->n_fields) <= 0)
+ continue;
+
+ r = journal_file_find_data_object_with_hash(of, odata, ol, le64toh(o->data.hash), NULL, NULL);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ found = true;
+ break;
+ }
+ }
+
+ if (found)
+ continue;
+
+ r = return_data(j, j->unique_file, o, data, l);
+ if (r < 0)
+ return r;
+
+ return 1;
+ }
+}
+
+_public_ void sd_journal_restart_unique(sd_journal *j) {
+ if (!j)
+ return;
+
+ j->unique_file = NULL;
+ j->unique_offset = 0;
+ j->unique_file_lost = false;
+}
+
+_public_ int sd_journal_enumerate_fields(sd_journal *j, const char **field) {
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(field, -EINVAL);
+
+ if (!j->fields_file) {
+ if (j->fields_file_lost)
+ return 0;
+
+ j->fields_file = ordered_hashmap_first(j->files);
+ if (!j->fields_file)
+ return 0;
+
+ j->fields_hash_table_index = 0;
+ j->fields_offset = 0;
+ }
+
+ for (;;) {
+ JournalFile *f, *of;
+ Iterator i;
+ uint64_t m;
+ Object *o;
+ size_t sz;
+ bool found;
+
+ f = j->fields_file;
+
+ if (j->fields_offset == 0) {
+ bool eof = false;
+
+ /* We are not yet positioned at any field. Let's pick the first one */
+ r = journal_file_map_field_hash_table(f);
+ if (r < 0)
+ return r;
+
+ m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem);
+ for (;;) {
+ if (j->fields_hash_table_index >= m) {
+ /* Reached the end of the hash table, go to the next file. */
+ eof = true;
+ break;
+ }
+
+ j->fields_offset = le64toh(f->field_hash_table[j->fields_hash_table_index].head_hash_offset);
+
+ if (j->fields_offset != 0)
+ break;
+
+ /* Empty hash table bucket, go to next one */
+ j->fields_hash_table_index++;
+ }
+
+ if (eof) {
+ /* Proceed with next file */
+ j->fields_file = ordered_hashmap_next(j->files, f->path);
+ if (!j->fields_file) {
+ *field = NULL;
+ return 0;
+ }
+
+ j->fields_offset = 0;
+ j->fields_hash_table_index = 0;
+ continue;
+ }
+
+ } else {
+ /* We are already positioned at a field. If so, let's figure out the next field from it */
+
+ r = journal_file_move_to_object(f, OBJECT_FIELD, j->fields_offset, &o);
+ if (r < 0)
+ return r;
+
+ j->fields_offset = le64toh(o->field.next_hash_offset);
+ if (j->fields_offset == 0) {
+ /* Reached the end of the hash table chain */
+ j->fields_hash_table_index++;
+ continue;
+ }
+ }
+
+ /* We use OBJECT_UNUSED here, so that the iterator below doesn't remove our mmap window */
+ r = journal_file_move_to_object(f, OBJECT_UNUSED, j->fields_offset, &o);
+ if (r < 0)
+ return r;
+
+ /* Because we used OBJECT_UNUSED above, we need to do our type check manually */
+ if (o->object.type != OBJECT_FIELD) {
+ log_debug("%s:offset " OFSfmt ": object has type %i, expected %i", f->path, j->fields_offset, o->object.type, OBJECT_FIELD);
+ return -EBADMSG;
+ }
+
+ sz = le64toh(o->object.size) - offsetof(Object, field.payload);
+
+ /* Let's see if we already returned this field name before. */
+ found = false;
+ ORDERED_HASHMAP_FOREACH(of, j->files, i) {
+ if (of == f)
+ break;
+
+ /* Skip this file it didn't have any fields indexed */
+ if (JOURNAL_HEADER_CONTAINS(of->header, n_fields) && le64toh(of->header->n_fields) <= 0)
+ continue;
+
+ r = journal_file_find_field_object_with_hash(of, o->field.payload, sz, le64toh(o->field.hash), NULL, NULL);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ found = true;
+ break;
+ }
+ }
+
+ if (found)
+ continue;
+
+ /* Check if this is really a valid string containing no NUL byte */
+ if (memchr(o->field.payload, 0, sz))
+ return -EBADMSG;
+
+ if (sz > j->data_threshold)
+ sz = j->data_threshold;
+
+ if (!GREEDY_REALLOC(j->fields_buffer, j->fields_buffer_allocated, sz + 1))
+ return -ENOMEM;
+
+ memcpy(j->fields_buffer, o->field.payload, sz);
+ j->fields_buffer[sz] = 0;
+
+ if (!field_is_valid(j->fields_buffer))
+ return -EBADMSG;
+
+ *field = j->fields_buffer;
+ return 1;
+ }
+}
+
+_public_ void sd_journal_restart_fields(sd_journal *j) {
+ if (!j)
+ return;
+
+ j->fields_file = NULL;
+ j->fields_hash_table_index = 0;
+ j->fields_offset = 0;
+ j->fields_file_lost = false;
+}
+
+_public_ int sd_journal_reliable_fd(sd_journal *j) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ return !j->on_network;
+}
+
+static char *lookup_field(const char *field, void *userdata) {
+ sd_journal *j = userdata;
+ const void *data;
+ size_t size, d;
+ int r;
+
+ assert(field);
+ assert(j);
+
+ r = sd_journal_get_data(j, field, &data, &size);
+ if (r < 0 ||
+ size > REPLACE_VAR_MAX)
+ return strdup(field);
+
+ d = strlen(field) + 1;
+
+ return strndup((const char*) data + d, size - d);
+}
+
+_public_ int sd_journal_get_catalog(sd_journal *j, char **ret) {
+ const void *data;
+ size_t size;
+ sd_id128_t id;
+ _cleanup_free_ char *text = NULL, *cid = NULL;
+ char *t;
+ int r;
+
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(ret, -EINVAL);
+
+ r = sd_journal_get_data(j, "MESSAGE_ID", &data, &size);
+ if (r < 0)
+ return r;
+
+ cid = strndup((const char*) data + 11, size - 11);
+ if (!cid)
+ return -ENOMEM;
+
+ r = sd_id128_from_string(cid, &id);
+ if (r < 0)
+ return r;
+
+ r = catalog_get(CATALOG_DATABASE, id, &text);
+ if (r < 0)
+ return r;
+
+ t = replace_var(text, lookup_field, j);
+ if (!t)
+ return -ENOMEM;
+
+ *ret = t;
+ return 0;
+}
+
+_public_ int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret) {
+ assert_return(ret, -EINVAL);
+
+ return catalog_get(CATALOG_DATABASE, id, ret);
+}
+
+_public_ int sd_journal_set_data_threshold(sd_journal *j, size_t sz) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+
+ j->data_threshold = sz;
+ return 0;
+}
+
+_public_ int sd_journal_get_data_threshold(sd_journal *j, size_t *sz) {
+ assert_return(j, -EINVAL);
+ assert_return(!journal_pid_changed(j), -ECHILD);
+ assert_return(sz, -EINVAL);
+
+ *sz = j->data_threshold;
+ return 0;
+}
+
+_public_ int sd_journal_has_runtime_files(sd_journal *j) {
+ assert_return(j, -EINVAL);
+
+ return j->has_runtime_files;
+}
+
+_public_ int sd_journal_has_persistent_files(sd_journal *j) {
+ assert_return(j, -EINVAL);
+
+ return j->has_persistent_files;
+}
diff --git a/src/libsystemd/src/sd-login/Makefile b/src/libsystemd/src/sd-login/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-login/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-login/sd-login.c b/src/libsystemd/src/sd-login/sd-login.c
index 9d4f187502..11686bc90d 100644
--- a/src/libsystemd/sd-login/sd-login.c
+++ b/src/libsystemd/src/sd-login/sd-login.c
@@ -23,27 +23,27 @@
#include <sys/inotify.h>
#include <unistd.h>
-#include "sd-login.h"
-
-#include "alloc-util.h"
-#include "cgroup-util.h"
-#include "dirent-util.h"
-#include "escape.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "formats-util.h"
-#include "fs-util.h"
-#include "hostname-util.h"
-#include "io-util.h"
-#include "login-util.h"
-#include "macro.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "socket-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "user-util.h"
-#include "util.h"
+#include <systemd/sd-login.h>
+
+#include "basic/alloc-util.h"
+#include "basic/cgroup-util.h"
+#include "basic/dirent-util.h"
+#include "basic/escape.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/formats-util.h"
+#include "basic/fs-util.h"
+#include "basic/hostname-util.h"
+#include "basic/io-util.h"
+#include "basic/login-util.h"
+#include "basic/macro.h"
+#include "basic/parse-util.h"
+#include "basic/path-util.h"
+#include "basic/socket-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/user-util.h"
+#include "basic/util.h"
/* Error codes:
*
diff --git a/src/libsystemd/sd-login/test-login.c b/src/libsystemd/src/sd-login/test-login.c
index c1fd7dd33e..bec645242a 100644
--- a/src/libsystemd/sd-login/test-login.c
+++ b/src/libsystemd/src/sd-login/test-login.c
@@ -20,14 +20,14 @@
#include <poll.h>
#include <string.h>
-#include "sd-login.h"
-
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "formats-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "util.h"
+#include <systemd/sd-login.h>
+
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/formats-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
static void test_login(void) {
_cleanup_close_pair_ int pair[2] = { -1, -1 };
diff --git a/src/libsystemd/src/sd-netlink/Makefile b/src/libsystemd/src/sd-netlink/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-netlink/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-netlink/local-addresses.c b/src/libsystemd/src/sd-netlink/local-addresses.c
index ed9ee041ab..81e99e0e5d 100644
--- a/src/libsystemd/sd-netlink/local-addresses.c
+++ b/src/libsystemd/src/sd-netlink/local-addresses.c
@@ -18,12 +18,12 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-netlink.h"
+#include "basic/alloc-util.h"
+#include "basic/macro.h"
-#include "alloc-util.h"
#include "local-addresses.h"
-#include "macro.h"
#include "netlink-util.h"
+#include "sd-netlink.h"
static int address_compare(const void *_a, const void *_b) {
const struct local_address *a = _a, *b = _b;
diff --git a/src/libsystemd/sd-netlink/local-addresses.h b/src/libsystemd/src/sd-netlink/local-addresses.h
index 18d71e797e..5eb0683131 100644
--- a/src/libsystemd/sd-netlink/local-addresses.h
+++ b/src/libsystemd/src/sd-netlink/local-addresses.h
@@ -20,9 +20,9 @@
***/
-#include "sd-netlink.h"
+#include "basic/in-addr-util.h"
-#include "in-addr-util.h"
+#include "sd-netlink.h"
struct local_address {
int family, ifindex;
diff --git a/src/libsystemd/sd-netlink/netlink-internal.h b/src/libsystemd/src/sd-netlink/netlink-internal.h
index dcfb080ad3..69511f87ad 100644
--- a/src/libsystemd/sd-netlink/netlink-internal.h
+++ b/src/libsystemd/src/sd-netlink/netlink-internal.h
@@ -21,12 +21,12 @@
#include <linux/netlink.h>
-#include "sd-netlink.h"
+#include "basic/list.h"
+#include "basic/prioq.h"
+#include "basic/refcnt.h"
-#include "list.h"
#include "netlink-types.h"
-#include "prioq.h"
-#include "refcnt.h"
+#include "sd-netlink.h"
#define RTNL_DEFAULT_TIMEOUT ((usec_t) (25 * USEC_PER_SEC))
diff --git a/src/libsystemd/sd-netlink/netlink-message.c b/src/libsystemd/src/sd-netlink/netlink-message.c
index 86d8dee867..fd32776a19 100644
--- a/src/libsystemd/sd-netlink/netlink-message.c
+++ b/src/libsystemd/src/sd-netlink/netlink-message.c
@@ -21,17 +21,17 @@
#include <stdbool.h>
#include <unistd.h>
-#include "sd-netlink.h"
+#include "basic/alloc-util.h"
+#include "basic/formats-util.h"
+#include "basic/missing.h"
+#include "basic/refcnt.h"
+#include "basic/socket-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
-#include "formats-util.h"
-#include "missing.h"
#include "netlink-internal.h"
#include "netlink-types.h"
#include "netlink-util.h"
-#include "refcnt.h"
-#include "socket-util.h"
-#include "util.h"
+#include "sd-netlink.h"
#define GET_CONTAINER(m, i) ((i) < (m)->n_containers ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->containers[i].offset) : NULL)
#define PUSH_CONTAINER(m, new) (m)->container_offsets[(m)->n_containers++] = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
diff --git a/src/libsystemd/sd-netlink/netlink-socket.c b/src/libsystemd/src/sd-netlink/netlink-socket.c
index c165fa3359..ec3513bcf8 100644
--- a/src/libsystemd/sd-netlink/netlink-socket.c
+++ b/src/libsystemd/src/sd-netlink/netlink-socket.c
@@ -21,17 +21,17 @@
#include <stdbool.h>
#include <unistd.h>
-#include "sd-netlink.h"
+#include "basic/alloc-util.h"
+#include "basic/formats-util.h"
+#include "basic/missing.h"
+#include "basic/refcnt.h"
+#include "basic/socket-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
-#include "formats-util.h"
-#include "missing.h"
#include "netlink-internal.h"
#include "netlink-types.h"
#include "netlink-util.h"
-#include "refcnt.h"
-#include "socket-util.h"
-#include "util.h"
+#include "sd-netlink.h"
int socket_open(int family) {
int fd;
diff --git a/src/libsystemd/sd-netlink/netlink-types.c b/src/libsystemd/src/sd-netlink/netlink-types.c
index 3a4bac2ced..3bd7777b88 100644
--- a/src/libsystemd/sd-netlink/netlink-types.c
+++ b/src/libsystemd/src/sd-netlink/netlink-types.c
@@ -19,6 +19,7 @@
#include <stdint.h>
#include <sys/socket.h>
+
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/in6.h>
@@ -30,11 +31,12 @@
#include <linux/if_link.h>
#include <linux/if_tunnel.h>
-#include "macro.h"
-#include "missing.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+#include "basic/string-table.h"
+#include "basic/util.h"
+
#include "netlink-types.h"
-#include "string-table.h"
-#include "util.h"
/* Maximum ARP IP target defined in kernel */
#define BOND_MAX_ARP_TARGETS 16
diff --git a/src/libsystemd/sd-netlink/netlink-types.h b/src/libsystemd/src/sd-netlink/netlink-types.h
index ecb20bfcdc..53363cdbfa 100644
--- a/src/libsystemd/sd-netlink/netlink-types.h
+++ b/src/libsystemd/src/sd-netlink/netlink-types.h
@@ -19,7 +19,7 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "macro.h"
+#include "basic/macro.h"
enum {
NETLINK_TYPE_UNSPEC,
diff --git a/src/libsystemd/sd-netlink/netlink-util.c b/src/libsystemd/src/sd-netlink/netlink-util.c
index 73b9ac0258..9248aa0b18 100644
--- a/src/libsystemd/sd-netlink/netlink-util.c
+++ b/src/libsystemd/src/sd-netlink/netlink-util.c
@@ -17,10 +17,9 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-netlink.h"
-
#include "netlink-internal.h"
#include "netlink-util.h"
+#include "sd-netlink.h"
int rtnl_set_link_name(sd_netlink **rtnl, int ifindex, const char *name) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL;
diff --git a/src/libsystemd/sd-netlink/netlink-util.h b/src/libsystemd/src/sd-netlink/netlink-util.h
index f49bf4eaa6..c9b932f994 100644
--- a/src/libsystemd/sd-netlink/netlink-util.h
+++ b/src/libsystemd/src/sd-netlink/netlink-util.h
@@ -19,9 +19,9 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-netlink.h"
+#include "basic/util.h"
-#include "util.h"
+#include "sd-netlink.h"
int rtnl_message_new_synthetic_error(int error, uint32_t serial, sd_netlink_message **ret);
uint32_t rtnl_message_get_serial(sd_netlink_message *m);
diff --git a/src/libsystemd/sd-netlink/rtnl-message.c b/src/libsystemd/src/sd-netlink/rtnl-message.c
index 09240c7b2a..42178e5706 100644
--- a/src/libsystemd/sd-netlink/rtnl-message.c
+++ b/src/libsystemd/src/sd-netlink/rtnl-message.c
@@ -21,16 +21,16 @@
#include <stdbool.h>
#include <unistd.h>
-#include "sd-netlink.h"
+#include "basic/formats-util.h"
+#include "basic/missing.h"
+#include "basic/refcnt.h"
+#include "basic/socket-util.h"
+#include "basic/util.h"
-#include "formats-util.h"
-#include "missing.h"
#include "netlink-internal.h"
#include "netlink-types.h"
#include "netlink-util.h"
-#include "refcnt.h"
-#include "socket-util.h"
-#include "util.h"
+#include "sd-netlink.h"
int sd_rtnl_message_route_set_dst_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
struct rtmsg *rtm;
diff --git a/src/libsystemd/sd-netlink/sd-netlink.c b/src/libsystemd/src/sd-netlink/sd-netlink.c
index 91701405a5..1329c56bbd 100644
--- a/src/libsystemd/sd-netlink/sd-netlink.c
+++ b/src/libsystemd/src/sd-netlink/sd-netlink.c
@@ -20,17 +20,17 @@
#include <poll.h>
#include <sys/socket.h>
-#include "sd-netlink.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/hashmap.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+#include "basic/socket-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "hashmap.h"
-#include "macro.h"
-#include "missing.h"
#include "netlink-internal.h"
#include "netlink-util.h"
-#include "socket-util.h"
-#include "util.h"
+#include "sd-netlink.h"
static int sd_netlink_new(sd_netlink **ret) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
diff --git a/src/libsystemd/src/sd-netlink/sd-netlink.h b/src/libsystemd/src/sd-netlink/sd-netlink.h
new file mode 100644
index 0000000000..d88506a9d7
--- /dev/null
+++ b/src/libsystemd/src/sd-netlink/sd-netlink.h
@@ -0,0 +1,163 @@
+#ifndef foosdnetlinkhfoo
+#define foosdnetlinkhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Tom Gundersen <teg@jklm.no>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <netinet/ether.h>
+#include <netinet/in.h>
+
+#include <linux/rtnetlink.h>
+#include <linux/neighbour.h>
+
+#include <systemd/_sd-common.h>
+#include <systemd/sd-event.h>
+
+_SD_BEGIN_DECLARATIONS;
+
+typedef struct sd_netlink sd_netlink;
+typedef struct sd_netlink_message sd_netlink_message;
+
+/* callback */
+
+typedef int (*sd_netlink_message_handler_t)(sd_netlink *nl, sd_netlink_message *m, void *userdata);
+
+/* bus */
+int sd_netlink_new_from_netlink(sd_netlink **nl, int fd);
+int sd_netlink_open(sd_netlink **nl);
+int sd_netlink_open_fd(sd_netlink **nl, int fd);
+int sd_netlink_inc_rcvbuf(const sd_netlink *const rtnl, const int size);
+
+sd_netlink *sd_netlink_ref(sd_netlink *nl);
+sd_netlink *sd_netlink_unref(sd_netlink *nl);
+
+int sd_netlink_send(sd_netlink *nl, sd_netlink_message *message, uint32_t *serial);
+int sd_netlink_call_async(sd_netlink *nl, sd_netlink_message *message,
+ sd_netlink_message_handler_t callback,
+ void *userdata, uint64_t usec, uint32_t *serial);
+int sd_netlink_call_async_cancel(sd_netlink *nl, uint32_t serial);
+int sd_netlink_call(sd_netlink *nl, sd_netlink_message *message, uint64_t timeout,
+ sd_netlink_message **reply);
+
+int sd_netlink_get_events(sd_netlink *nl);
+int sd_netlink_get_timeout(sd_netlink *nl, uint64_t *timeout);
+int sd_netlink_process(sd_netlink *nl, sd_netlink_message **ret);
+int sd_netlink_wait(sd_netlink *nl, uint64_t timeout);
+
+int sd_netlink_add_match(sd_netlink *nl, uint16_t match, sd_netlink_message_handler_t c, void *userdata);
+int sd_netlink_remove_match(sd_netlink *nl, uint16_t match, sd_netlink_message_handler_t c, void *userdata);
+
+int sd_netlink_attach_event(sd_netlink *nl, sd_event *e, int64_t priority);
+int sd_netlink_detach_event(sd_netlink *nl);
+
+int sd_netlink_message_append_string(sd_netlink_message *m, unsigned short type, const char *data);
+int sd_netlink_message_append_flag(sd_netlink_message *m, unsigned short type);
+int sd_netlink_message_append_u8(sd_netlink_message *m, unsigned short type, uint8_t data);
+int sd_netlink_message_append_u16(sd_netlink_message *m, unsigned short type, uint16_t data);
+int sd_netlink_message_append_u32(sd_netlink_message *m, unsigned short type, uint32_t data);
+int sd_netlink_message_append_data(sd_netlink_message *m, unsigned short type, const void *data, size_t len);
+int sd_netlink_message_append_in_addr(sd_netlink_message *m, unsigned short type, const struct in_addr *data);
+int sd_netlink_message_append_in6_addr(sd_netlink_message *m, unsigned short type, const struct in6_addr *data);
+int sd_netlink_message_append_ether_addr(sd_netlink_message *m, unsigned short type, const struct ether_addr *data);
+int sd_netlink_message_append_cache_info(sd_netlink_message *m, unsigned short type, const struct ifa_cacheinfo *info);
+
+int sd_netlink_message_open_container(sd_netlink_message *m, unsigned short type);
+int sd_netlink_message_open_container_union(sd_netlink_message *m, unsigned short type, const char *key);
+int sd_netlink_message_close_container(sd_netlink_message *m);
+
+int sd_netlink_message_read_string(sd_netlink_message *m, unsigned short type, const char **data);
+int sd_netlink_message_read_u8(sd_netlink_message *m, unsigned short type, uint8_t *data);
+int sd_netlink_message_read_u16(sd_netlink_message *m, unsigned short type, uint16_t *data);
+int sd_netlink_message_read_u32(sd_netlink_message *m, unsigned short type, uint32_t *data);
+int sd_netlink_message_read_ether_addr(sd_netlink_message *m, unsigned short type, struct ether_addr *data);
+int sd_netlink_message_read_cache_info(sd_netlink_message *m, unsigned short type, struct ifa_cacheinfo *info);
+int sd_netlink_message_read_in_addr(sd_netlink_message *m, unsigned short type, struct in_addr *data);
+int sd_netlink_message_read_in6_addr(sd_netlink_message *m, unsigned short type, struct in6_addr *data);
+int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short type);
+int sd_netlink_message_exit_container(sd_netlink_message *m);
+
+int sd_netlink_message_rewind(sd_netlink_message *m);
+
+sd_netlink_message *sd_netlink_message_next(sd_netlink_message *m);
+
+sd_netlink_message *sd_netlink_message_ref(sd_netlink_message *m);
+sd_netlink_message *sd_netlink_message_unref(sd_netlink_message *m);
+
+int sd_netlink_message_request_dump(sd_netlink_message *m, int dump);
+int sd_netlink_message_is_error(sd_netlink_message *m);
+int sd_netlink_message_get_errno(sd_netlink_message *m);
+int sd_netlink_message_get_type(sd_netlink_message *m, uint16_t *type);
+int sd_netlink_message_set_flags(sd_netlink_message *m, uint16_t flags);
+int sd_netlink_message_is_broadcast(sd_netlink_message *m);
+
+/* rtnl */
+
+int sd_rtnl_message_new_link(sd_netlink *nl, sd_netlink_message **ret, uint16_t msg_type, int index);
+int sd_rtnl_message_new_addr_update(sd_netlink *nl, sd_netlink_message **ret, int index, int family);
+int sd_rtnl_message_new_addr(sd_netlink *nl, sd_netlink_message **ret, uint16_t msg_type, int index, int family);
+int sd_rtnl_message_new_route(sd_netlink *nl, sd_netlink_message **ret, uint16_t nlmsg_type, int rtm_family, unsigned char rtm_protocol);
+int sd_rtnl_message_new_neigh(sd_netlink *nl, sd_netlink_message **ret, uint16_t msg_type, int index, int nda_family);
+
+int sd_rtnl_message_get_family(sd_netlink_message *m, int *family);
+
+int sd_rtnl_message_addr_set_prefixlen(sd_netlink_message *m, unsigned char prefixlen);
+int sd_rtnl_message_addr_set_scope(sd_netlink_message *m, unsigned char scope);
+int sd_rtnl_message_addr_set_flags(sd_netlink_message *m, unsigned char flags);
+int sd_rtnl_message_addr_get_family(sd_netlink_message *m, int *family);
+int sd_rtnl_message_addr_get_prefixlen(sd_netlink_message *m, unsigned char *prefixlen);
+int sd_rtnl_message_addr_get_scope(sd_netlink_message *m, unsigned char *scope);
+int sd_rtnl_message_addr_get_flags(sd_netlink_message *m, unsigned char *flags);
+int sd_rtnl_message_addr_get_ifindex(sd_netlink_message *m, int *ifindex);
+
+int sd_rtnl_message_link_set_flags(sd_netlink_message *m, unsigned flags, unsigned change);
+int sd_rtnl_message_link_set_type(sd_netlink_message *m, unsigned type);
+int sd_rtnl_message_link_set_family(sd_netlink_message *m, unsigned family);
+int sd_rtnl_message_link_get_ifindex(sd_netlink_message *m, int *ifindex);
+int sd_rtnl_message_link_get_flags(sd_netlink_message *m, unsigned *flags);
+int sd_rtnl_message_link_get_type(sd_netlink_message *m, unsigned short *type);
+
+int sd_rtnl_message_route_set_dst_prefixlen(sd_netlink_message *m, unsigned char prefixlen);
+int sd_rtnl_message_route_set_src_prefixlen(sd_netlink_message *m, unsigned char prefixlen);
+int sd_rtnl_message_route_set_scope(sd_netlink_message *m, unsigned char scope);
+int sd_rtnl_message_route_set_flags(sd_netlink_message *m, unsigned flags);
+int sd_rtnl_message_route_set_table(sd_netlink_message *m, unsigned char table);
+int sd_rtnl_message_route_get_flags(sd_netlink_message *m, unsigned *flags);
+int sd_rtnl_message_route_get_family(sd_netlink_message *m, int *family);
+int sd_rtnl_message_route_set_family(sd_netlink_message *m, int family);
+int sd_rtnl_message_route_get_protocol(sd_netlink_message *m, unsigned char *protocol);
+int sd_rtnl_message_route_get_scope(sd_netlink_message *m, unsigned char *scope);
+int sd_rtnl_message_route_get_tos(sd_netlink_message *m, unsigned char *tos);
+int sd_rtnl_message_route_get_table(sd_netlink_message *m, unsigned char *table);
+int sd_rtnl_message_route_get_dst_prefixlen(sd_netlink_message *m, unsigned char *dst_len);
+int sd_rtnl_message_route_get_src_prefixlen(sd_netlink_message *m, unsigned char *src_len);
+
+int sd_rtnl_message_neigh_set_flags(sd_netlink_message *m, uint8_t flags);
+int sd_rtnl_message_neigh_set_state(sd_netlink_message *m, uint16_t state);
+int sd_rtnl_message_neigh_get_family(sd_netlink_message *m, int *family);
+int sd_rtnl_message_neigh_get_ifindex(sd_netlink_message *m, int *family);
+int sd_rtnl_message_neigh_get_state(sd_netlink_message *m, uint16_t *state);
+int sd_rtnl_message_neigh_get_flags(sd_netlink_message *m, uint8_t *flags);
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_netlink, sd_netlink_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_netlink_message, sd_netlink_message_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/sd-netlink/test-local-addresses.c b/src/libsystemd/src/sd-netlink/test-local-addresses.c
index e0e28cc0cc..8755a27182 100644
--- a/src/libsystemd/sd-netlink/test-local-addresses.c
+++ b/src/libsystemd/src/sd-netlink/test-local-addresses.c
@@ -17,9 +17,10 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "af-list.h"
-#include "alloc-util.h"
-#include "in-addr-util.h"
+#include "basic/af-list.h"
+#include "basic/alloc-util.h"
+#include "basic/in-addr-util.h"
+
#include "local-addresses.h"
static void print_local_addresses(struct local_address *a, unsigned n) {
diff --git a/src/libsystemd/sd-netlink/test-netlink.c b/src/libsystemd/src/sd-netlink/test-netlink.c
index 58c2e892f5..1fde81778e 100644
--- a/src/libsystemd/sd-netlink/test-netlink.c
+++ b/src/libsystemd/src/sd-netlink/test-netlink.c
@@ -20,15 +20,15 @@
#include <net/if.h>
#include <netinet/ether.h>
-#include "sd-netlink.h"
+#include "basic/ether-addr-util.h"
+#include "basic/macro.h"
+#include "basic/missing.h"
+#include "basic/socket-util.h"
+#include "basic/string-util.h"
+#include "basic/util.h"
-#include "ether-addr-util.h"
-#include "macro.h"
-#include "missing.h"
#include "netlink-util.h"
-#include "socket-util.h"
-#include "string-util.h"
-#include "util.h"
+#include "sd-netlink.h"
static void test_message_link_bridge(sd_netlink *rtnl) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL;
diff --git a/src/libsystemd/src/sd-network/Makefile b/src/libsystemd/src/sd-network/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-network/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-network/network-util.c b/src/libsystemd/src/sd-network/network-util.c
index a0d9b5f1a4..ae3e51ae77 100644
--- a/src/libsystemd/sd-network/network-util.c
+++ b/src/libsystemd/src/sd-network/network-util.c
@@ -17,10 +17,11 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "alloc-util.h"
-#include "fd-util.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/strv.h"
+
#include "network-util.h"
-#include "strv.h"
bool network_is_online(void) {
_cleanup_free_ char *state = NULL;
diff --git a/src/libsystemd/sd-network/network-util.h b/src/libsystemd/src/sd-network/network-util.h
index 26780dce28..26780dce28 100644
--- a/src/libsystemd/sd-network/network-util.h
+++ b/src/libsystemd/src/sd-network/network-util.h
diff --git a/src/libsystemd/sd-network/sd-network.c b/src/libsystemd/src/sd-network/sd-network.c
index f8e18f23fd..c3755371ff 100644
--- a/src/libsystemd/sd-network/sd-network.c
+++ b/src/libsystemd/src/sd-network/sd-network.c
@@ -23,18 +23,18 @@
#include <string.h>
#include <sys/inotify.h>
-#include "sd-network.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/fileio.h"
+#include "basic/fs-util.h"
+#include "basic/macro.h"
+#include "basic/parse-util.h"
+#include "basic/stdio-util.h"
+#include "basic/string-util.h"
+#include "basic/strv.h"
+#include "basic/util.h"
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "fs-util.h"
-#include "macro.h"
-#include "parse-util.h"
-#include "stdio-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "util.h"
+#include "sd-network.h"
_public_ int sd_network_get_operational_state(char **state) {
_cleanup_free_ char *s = NULL;
diff --git a/src/libsystemd/src/sd-network/sd-network.h b/src/libsystemd/src/sd-network/sd-network.h
new file mode 100644
index 0000000000..ac2660de45
--- /dev/null
+++ b/src/libsystemd/src/sd-network/sd-network.h
@@ -0,0 +1,176 @@
+#ifndef foosdnetworkhfoo
+#define foosdnetworkhfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+ Copyright 2014 Tom Gundersen
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include <systemd/_sd-common.h>
+
+/*
+ * A few points:
+ *
+ * Instead of returning an empty string array or empty integer array, we
+ * may return NULL.
+ *
+ * Free the data the library returns with libc free(). String arrays
+ * are NULL terminated, and you need to free the array itself in
+ * addition to the strings contained.
+ *
+ * We return error codes as negative errno, kernel-style. On success, we
+ * return 0 or positive.
+ *
+ * These functions access data in /run. This is a virtual file system;
+ * therefore, accesses are relatively cheap.
+ *
+ * See sd-network(3) for more information.
+ */
+
+_SD_BEGIN_DECLARATIONS;
+
+/* Get overall operational state
+ * Possible states: down, up, dormant, carrier, degraded, routable
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of any links
+ */
+int sd_network_get_operational_state(char **state);
+
+/* Get DNS entries for all links. These are string representations of
+ * IP addresses */
+int sd_network_get_dns(char ***dns);
+
+/* Get NTP entries for all links. These are domain names or string
+ * representations of IP addresses */
+int sd_network_get_ntp(char ***ntp);
+
+/* Get the search domains for all links. */
+int sd_network_get_search_domains(char ***domains);
+
+/* Get the search domains for all links. */
+int sd_network_get_route_domains(char ***domains);
+
+/* Get setup state from ifindex.
+ * Possible states:
+ * pending: udev is still processing the link, we don't yet know if we will manage it
+ * failed: networkd failed to manage the link
+ * configuring: in the process of retrieving configuration or configuring the link
+ * configured: link configured successfully
+ * unmanaged: networkd is not handling the link
+ * linger: the link is gone, but has not yet been dropped by networkd
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of the link
+ */
+int sd_network_link_get_setup_state(int ifindex, char **state);
+
+/* Get operational state from ifindex.
+ * Possible states:
+ * off: the device is powered down
+ * no-carrier: the device is powered up, but it does not yet have a carrier
+ * dormant: the device has a carrier, but is not yet ready for normal traffic
+ * carrier: the link has a carrier
+ * degraded: the link has carrier and addresses valid on the local link configured
+ * routable: the link has carrier and routable address configured
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of the link
+ */
+int sd_network_link_get_operational_state(int ifindex, char **state);
+
+/* Get path to .network file applied to link */
+int sd_network_link_get_network_file(int ifindex, char **filename);
+
+/* Get DNS entries for a given link. These are string representations of
+ * IP addresses */
+int sd_network_link_get_dns(int ifindex, char ***ret);
+
+/* Get NTP entries for a given link. These are domain names or string
+ * representations of IP addresses */
+int sd_network_link_get_ntp(int ifindex, char ***ret);
+
+/* Indicates whether or not LLMNR should be enabled for the link
+ * Possible levels of support: yes, no, resolve
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of the link
+ */
+int sd_network_link_get_llmnr(int ifindex, char **llmnr);
+
+/* Indicates whether or not MulticastDNS should be enabled for the
+ * link.
+ * Possible levels of support: yes, no, resolve
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of the link
+ */
+int sd_network_link_get_mdns(int ifindex, char **mdns);
+
+/* Indicates whether or not DNSSEC should be enabled for the link
+ * Possible levels of support: yes, no, allow-downgrade
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of the link
+ */
+int sd_network_link_get_dnssec(int ifindex, char **dnssec);
+
+/* Returns the list of per-interface DNSSEC negative trust anchors
+ * Possible return codes:
+ * -ENODATA: networkd is not aware of the link, or has no such data
+ */
+int sd_network_link_get_dnssec_negative_trust_anchors(int ifindex, char ***nta);
+
+/* Get the search DNS domain names for a given link. */
+int sd_network_link_get_search_domains(int ifindex, char ***domains);
+
+/* Get the route DNS domain names for a given link. */
+int sd_network_link_get_route_domains(int ifindex, char ***domains);
+
+/* Get the carrier interface indexes to which current link is bound to. */
+int sd_network_link_get_carrier_bound_to(int ifindex, int **ifindexes);
+
+/* Get the CARRIERS that are bound to current link. */
+int sd_network_link_get_carrier_bound_by(int ifindex, int **ifindexes);
+
+/* Get the timezone that was learnt on a specific link. */
+int sd_network_link_get_timezone(int ifindex, char **timezone);
+
+/* Monitor object */
+typedef struct sd_network_monitor sd_network_monitor;
+
+/* Create a new monitor. Category must be NULL, "links" or "leases". */
+int sd_network_monitor_new(sd_network_monitor **ret, const char *category);
+
+/* Destroys the passed monitor. Returns NULL. */
+sd_network_monitor* sd_network_monitor_unref(sd_network_monitor *m);
+
+/* Flushes the monitor */
+int sd_network_monitor_flush(sd_network_monitor *m);
+
+/* Get FD from monitor */
+int sd_network_monitor_get_fd(sd_network_monitor *m);
+
+/* Get poll() mask to monitor */
+int sd_network_monitor_get_events(sd_network_monitor *m);
+
+/* Get timeout for poll(), as usec value relative to CLOCK_MONOTONIC's epoch */
+int sd_network_monitor_get_timeout(sd_network_monitor *m, uint64_t *timeout_usec);
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_network_monitor, sd_network_monitor_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/src/sd-resolve/Makefile b/src/libsystemd/src/sd-resolve/Makefile
new file mode 120000
index 0000000000..71a1159ce0
--- /dev/null
+++ b/src/libsystemd/src/sd-resolve/Makefile
@@ -0,0 +1 @@
+../subdir.mk \ No newline at end of file
diff --git a/src/libsystemd/sd-resolve/sd-resolve.c b/src/libsystemd/src/sd-resolve/sd-resolve.c
index d8303e2e69..d10204cde9 100644
--- a/src/libsystemd/sd-resolve/sd-resolve.c
+++ b/src/libsystemd/src/sd-resolve/sd-resolve.c
@@ -29,15 +29,15 @@
#include <sys/prctl.h>
#include <unistd.h>
-#include "sd-resolve.h"
+#include "basic/alloc-util.h"
+#include "basic/fd-util.h"
+#include "basic/io-util.h"
+#include "basic/list.h"
+#include "basic/missing.h"
+#include "basic/socket-util.h"
+#include "basic/util.h"
-#include "alloc-util.h"
-#include "fd-util.h"
-#include "io-util.h"
-#include "list.h"
-#include "missing.h"
-#include "socket-util.h"
-#include "util.h"
+#include "sd-resolve.h"
#define WORKERS_MIN 1U
#define WORKERS_MAX 16U
diff --git a/src/libsystemd/src/sd-resolve/sd-resolve.h b/src/libsystemd/src/sd-resolve/sd-resolve.h
new file mode 100644
index 0000000000..1996ae401a
--- /dev/null
+++ b/src/libsystemd/src/sd-resolve/sd-resolve.h
@@ -0,0 +1,116 @@
+#ifndef foosdresolvehfoo
+#define foosdresolvehfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2005-2014 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <netdb.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <systemd/_sd-common.h>
+#include <systemd/sd-event.h>
+
+_SD_BEGIN_DECLARATIONS;
+
+/* An opaque sd-resolve session structure */
+typedef struct sd_resolve sd_resolve;
+
+/* An opaque sd-resolve query structure */
+typedef struct sd_resolve_query sd_resolve_query;
+
+/* A callback on completion */
+typedef int (*sd_resolve_getaddrinfo_handler_t)(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata);
+typedef int (*sd_resolve_getnameinfo_handler_t)(sd_resolve_query *q, int ret, const char *host, const char *serv, void *userdata);
+
+enum {
+ SD_RESOLVE_GET_HOST = UINT64_C(1),
+ SD_RESOLVE_GET_SERVICE = UINT64_C(2),
+ SD_RESOLVE_GET_BOTH = UINT64_C(3),
+};
+
+int sd_resolve_default(sd_resolve **ret);
+
+/* Allocate a new sd-resolve session. */
+int sd_resolve_new(sd_resolve **ret);
+
+/* Free a sd-resolve session. This destroys all attached
+ * sd_resolve_query objects automatically. */
+sd_resolve* sd_resolve_unref(sd_resolve *resolve);
+sd_resolve* sd_resolve_ref(sd_resolve *resolve);
+
+/* Return the UNIX file descriptor to poll() for events on. Use this
+ * function to integrate sd-resolve with your custom main loop. */
+int sd_resolve_get_fd(sd_resolve *resolve);
+
+/* Return the poll() events (a combination of flags like POLLIN,
+ * POLLOUT, ...) to check for. */
+int sd_resolve_get_events(sd_resolve *resolve);
+
+/* Return the poll() timeout to pass. Returns (uint64_t) -1 as
+ * timeout if no timeout is needed. */
+int sd_resolve_get_timeout(sd_resolve *resolve, uint64_t *timeout_usec);
+
+/* Process pending responses. After this function is called, you can
+ * get the next completed query object(s) using
+ * sd_resolve_get_next(). */
+int sd_resolve_process(sd_resolve *resolve);
+
+/* Wait for a resolve event to complete. */
+int sd_resolve_wait(sd_resolve *resolve, uint64_t timeout_usec);
+
+int sd_resolve_get_tid(sd_resolve *resolve, pid_t *tid);
+
+int sd_resolve_attach_event(sd_resolve *resolve, sd_event *e, int64_t priority);
+int sd_resolve_detach_event(sd_resolve *resolve);
+sd_event *sd_resolve_get_event(sd_resolve *resolve);
+
+/* Issue a name-to-address query on the specified session. The
+ * arguments are compatible with those of libc's
+ * getaddrinfo(3). The function returns a new query object. When the
+ * query is completed, you may retrieve the results using
+ * sd_resolve_getaddrinfo_done(). */
+int sd_resolve_getaddrinfo(sd_resolve *resolve, sd_resolve_query **q, const char *node, const char *service, const struct addrinfo *hints, sd_resolve_getaddrinfo_handler_t callback, void *userdata);
+
+/* Issue an address-to-name query on the specified session. The
+ * arguments are compatible with those of libc's
+ * getnameinfo(3). The function returns a new query object. When the
+ * query is completed, you may retrieve the results using
+ * sd_resolve_getnameinfo_done(). Set gethost (resp. getserv) to non-zero
+ * if you want to query the hostname (resp. the service name). */
+int sd_resolve_getnameinfo(sd_resolve *resolve, sd_resolve_query **q, const struct sockaddr *sa, socklen_t salen, int flags, uint64_t get, sd_resolve_getnameinfo_handler_t callback, void *userdata);
+
+sd_resolve_query *sd_resolve_query_ref(sd_resolve_query* q);
+sd_resolve_query *sd_resolve_query_unref(sd_resolve_query* q);
+
+/* Returns non-zero when the query operation specified by q has been completed. */
+int sd_resolve_query_is_done(sd_resolve_query*q);
+
+void *sd_resolve_query_get_userdata(sd_resolve_query *q);
+void *sd_resolve_query_set_userdata(sd_resolve_query *q, void *userdata);
+
+sd_resolve *sd_resolve_query_get_resolve(sd_resolve_query *q);
+
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_resolve, sd_resolve_unref);
+_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_resolve_query, sd_resolve_query_unref);
+
+_SD_END_DECLARATIONS;
+
+#endif
diff --git a/src/libsystemd/sd-resolve/test-resolve.c b/src/libsystemd/src/sd-resolve/test-resolve.c
index 1be1a7f8a7..d552a48da8 100644
--- a/src/libsystemd/sd-resolve/test-resolve.c
+++ b/src/libsystemd/src/sd-resolve/test-resolve.c
@@ -26,12 +26,12 @@
#include <string.h>
#include <sys/socket.h>
-#include "sd-resolve.h"
+#include "basic/alloc-util.h"
+#include "basic/macro.h"
+#include "basic/socket-util.h"
+#include "basic/string-util.h"
-#include "alloc-util.h"
-#include "macro.h"
-#include "socket-util.h"
-#include "string-util.h"
+#include "sd-resolve.h"
static int getaddrinfo_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) {
const struct addrinfo *i;
diff --git a/src/libsystemd/sd-utf8/sd-utf8.c b/src/libsystemd/src/sd-utf8/sd-utf8.c
index 33a5a04ea1..58e4a88f07 100644
--- a/src/libsystemd/sd-utf8/sd-utf8.c
+++ b/src/libsystemd/src/sd-utf8/sd-utf8.c
@@ -17,10 +17,10 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include "sd-utf8.h"
+#include <systemd/sd-utf8.h>
-#include "utf8.h"
-#include "util.h"
+#include "basic/utf8.h"
+#include "basic/util.h"
_public_ const char *sd_utf8_is_valid(const char *s) {
assert_return(s, NULL);
diff --git a/src/libsystemd/src/subdir.mk b/src/libsystemd/src/subdir.mk
new file mode 100644
index 0000000000..605b592401
--- /dev/null
+++ b/src/libsystemd/src/subdir.mk
@@ -0,0 +1,29 @@
+# -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2010-2012 Lennart Poettering
+# Copyright 2010-2012 Kay Sievers
+# Copyright 2013 Zbigniew Jędrzejewski-Szmek
+# Copyright 2013 David Strauss
+# Copyright 2016 Luke Shumaker
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+sd.CPPFLAGS += -DLIBDIR=\"$(libdir)\"
+sd.CPPFLAGS += -DUDEVLIBEXECDIR=\"$(udevlibexecdir)\"
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk