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l---------src/libsystemd-shared/GNUmakefile1
-rw-r--r--src/libsystemd-shared/Makefile28
-rw-r--r--src/libsystemd-shared/include/systemd-shared/acl-util.h48
-rw-r--r--src/libsystemd-shared/include/systemd-shared/acpi-fpdt.h24
-rw-r--r--src/libsystemd-shared/include/systemd-shared/apparmor-util.h24
-rw-r--r--src/libsystemd-shared/include/systemd-shared/ask-password-api.h38
-rw-r--r--src/libsystemd-shared/include/systemd-shared/base-filesystem.h24
-rw-r--r--src/libsystemd-shared/include/systemd-shared/boot-timestamps.h25
-rw-r--r--src/libsystemd-shared/include/systemd-shared/bus-unit-util.h58
-rw-r--r--src/libsystemd-shared/include/systemd-shared/cgroup-show.h32
-rw-r--r--src/libsystemd-shared/include/systemd-shared/clean-ipc.h26
-rw-r--r--src/libsystemd-shared/include/systemd-shared/condition.h94
-rw-r--r--src/libsystemd-shared/include/systemd-shared/conf-parser.h242
-rw-r--r--src/libsystemd-shared/include/systemd-shared/dev-setup.h24
-rw-r--r--src/libsystemd-shared/include/systemd-shared/dns-domain.h109
-rw-r--r--src/libsystemd-shared/include/systemd-shared/dropin.h61
-rw-r--r--src/libsystemd-shared/include/systemd-shared/efivars.h131
-rw-r--r--src/libsystemd-shared/include/systemd-shared/fdset.h58
-rw-r--r--src/libsystemd-shared/include/systemd-shared/fstab-util.h52
-rw-r--r--src/libsystemd-shared/include/systemd-shared/generator.h40
-rw-r--r--src/libsystemd-shared/include/systemd-shared/gpt.h66
-rw-r--r--src/libsystemd-shared/include/systemd-shared/ima-util.h24
-rw-r--r--src/libsystemd-shared/include/systemd-shared/import-util.h43
-rw-r--r--src/libsystemd-shared/include/systemd-shared/initreq.h77
-rw-r--r--src/libsystemd-shared/include/systemd-shared/install-printf.h24
-rw-r--r--src/libsystemd-shared/include/systemd-shared/install.h257
-rw-r--r--src/libsystemd-shared/include/systemd-shared/logs-show.h71
-rw-r--r--src/libsystemd-shared/include/systemd-shared/machine-image.h103
-rw-r--r--src/libsystemd-shared/include/systemd-shared/machine-pool.h30
-rw-r--r--src/libsystemd-shared/include/systemd-shared/output-mode.h58
-rw-r--r--src/libsystemd-shared/include/systemd-shared/pager.h30
-rw-r--r--src/libsystemd-shared/include/systemd-shared/path-lookup.h77
-rw-r--r--src/libsystemd-shared/include/systemd-shared/ptyfwd.h54
-rw-r--r--src/libsystemd-shared/include/systemd-shared/resolve-util.h60
-rw-r--r--src/libsystemd-shared/include/systemd-shared/seccomp-util.h66
-rw-r--r--src/libsystemd-shared/include/systemd-shared/sleep-config.h26
-rw-r--r--src/libsystemd-shared/include/systemd-shared/spawn-ask-password-agent.h23
-rw-r--r--src/libsystemd-shared/include/systemd-shared/spawn-polkit-agent.h23
-rw-r--r--src/libsystemd-shared/include/systemd-shared/specifier.h37
-rw-r--r--src/libsystemd-shared/include/systemd-shared/switch-root.h23
-rw-r--r--src/libsystemd-shared/include/systemd-shared/sysctl-util.h25
-rw-r--r--src/libsystemd-shared/include/systemd-shared/test-tables.h60
-rw-r--r--src/libsystemd-shared/include/systemd-shared/tests.h22
-rw-r--r--src/libsystemd-shared/include/systemd-shared/udev-util.h44
-rw-r--r--src/libsystemd-shared/include/systemd-shared/uid-range.h33
-rw-r--r--src/libsystemd-shared/include/systemd-shared/utmp-wtmp.h74
-rw-r--r--src/libsystemd-shared/include/systemd-shared/vlan-util.h35
-rw-r--r--src/libsystemd-shared/include/systemd-shared/watchdog.h29
l---------src/libsystemd-shared/src/GNUmakefile1
-rw-r--r--src/libsystemd-shared/src/Makefile182
-rw-r--r--src/libsystemd-shared/src/acl-util.c429
-rw-r--r--src/libsystemd-shared/src/acpi-fpdt.c164
-rw-r--r--src/libsystemd-shared/src/apparmor-util.c39
-rw-r--r--src/libsystemd-shared/src/ask-password-api.c734
-rw-r--r--src/libsystemd-shared/src/base-filesystem.c129
-rw-r--r--src/libsystemd-shared/src/boot-timestamps.c64
-rw-r--r--src/libsystemd-shared/src/bus-unit-util.c1350
-rw-r--r--src/libsystemd-shared/src/cgroup-show.c312
-rw-r--r--src/libsystemd-shared/src/clean-ipc.c389
-rw-r--r--src/libsystemd-shared/src/condition.c578
-rw-r--r--src/libsystemd-shared/src/conf-parser.c961
-rw-r--r--src/libsystemd-shared/src/dev-setup.c73
-rw-r--r--src/libsystemd-shared/src/dns-domain.c1326
-rw-r--r--src/libsystemd-shared/src/dropin.c251
-rw-r--r--src/libsystemd-shared/src/efivars.c715
-rw-r--r--src/libsystemd-shared/src/fdset.c273
-rw-r--r--src/libsystemd-shared/src/fstab-util.c263
-rw-r--r--src/libsystemd-shared/src/generator.c207
-rw-r--r--src/libsystemd-shared/src/ima-util.c32
-rw-r--r--src/libsystemd-shared/src/import-util.c185
-rw-r--r--src/libsystemd-shared/src/install-printf.c172
-rw-r--r--src/libsystemd-shared/src/install.c3041
-rw-r--r--src/libsystemd-shared/src/logs-show.c1351
-rw-r--r--src/libsystemd-shared/src/machine-image.c819
-rw-r--r--src/libsystemd-shared/src/machine-pool.c427
-rw-r--r--src/libsystemd-shared/src/output-mode.c38
-rw-r--r--src/libsystemd-shared/src/pager.c227
-rw-r--r--src/libsystemd-shared/src/path-lookup.c822
-rw-r--r--src/libsystemd-shared/src/ptyfwd.c521
-rw-r--r--src/libsystemd-shared/src/resolve-util.c39
-rw-r--r--src/libsystemd-shared/src/seccomp-util.c579
-rw-r--r--src/libsystemd-shared/src/sleep-config.c278
-rw-r--r--src/libsystemd-shared/src/spawn-ask-password-agent.c62
-rw-r--r--src/libsystemd-shared/src/spawn-polkit-agent.c102
-rw-r--r--src/libsystemd-shared/src/specifier.c188
-rw-r--r--src/libsystemd-shared/src/switch-root.c167
-rw-r--r--src/libsystemd-shared/src/sysctl-util.c73
-rw-r--r--src/libsystemd-shared/src/tests.c33
-rw-r--r--src/libsystemd-shared/src/uid-range.c208
-rw-r--r--src/libsystemd-shared/src/utmp-wtmp.c445
-rw-r--r--src/libsystemd-shared/src/vlan-util.c69
-rw-r--r--src/libsystemd-shared/src/watchdog.c165
92 files changed, 21116 insertions, 0 deletions
diff --git a/src/libsystemd-shared/GNUmakefile b/src/libsystemd-shared/GNUmakefile
new file mode 120000
index 0000000000..54fdd42278
--- /dev/null
+++ b/src/libsystemd-shared/GNUmakefile
@@ -0,0 +1 @@
+../../GNUmakefile \ No newline at end of file
diff --git a/src/libsystemd-shared/Makefile b/src/libsystemd-shared/Makefile
new file mode 100644
index 0000000000..369b265ff7
--- /dev/null
+++ b/src/libsystemd-shared/Makefile
@@ -0,0 +1,28 @@
+# -*- 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
+
+nested.subdirs += src
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/libsystemd-shared/include/systemd-shared/acl-util.h b/src/libsystemd-shared/include/systemd-shared/acl-util.h
new file mode 100644
index 0000000000..8310519aff
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/acl-util.h
@@ -0,0 +1,48 @@
+#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/>.
+***/
+
+#ifdef HAVE_ACL
+
+#include <acl/libacl.h>
+#include <stdbool.h>
+#include <sys/acl.h>
+
+#include "systemd-basic/macro.h"
+
+int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry);
+int calc_acl_mask_if_needed(acl_t *acl_p);
+int add_base_acls_if_needed(acl_t *acl_p, const char *path);
+int acl_search_groups(const char* path, char ***ret_groups);
+int parse_acl(const char *text, acl_t *acl_access, acl_t *acl_default, bool want_mask);
+int acls_for_file(const char *path, acl_type_t type, acl_t new, acl_t *acl);
+int add_acls_for_user(int fd, uid_t uid);
+
+/* acl_free takes multiple argument types.
+ * Multiple cleanup functions are necessary. */
+DEFINE_TRIVIAL_CLEANUP_FUNC(acl_t, acl_free);
+#define acl_free_charp acl_free
+DEFINE_TRIVIAL_CLEANUP_FUNC(char*, acl_free_charp);
+#define acl_free_uid_tp acl_free
+DEFINE_TRIVIAL_CLEANUP_FUNC(uid_t*, acl_free_uid_tp);
+#define acl_free_gid_tp acl_free
+DEFINE_TRIVIAL_CLEANUP_FUNC(gid_t*, acl_free_gid_tp);
+
+#endif
diff --git a/src/libsystemd-shared/include/systemd-shared/acpi-fpdt.h b/src/libsystemd-shared/include/systemd-shared/acpi-fpdt.h
new file mode 100644
index 0000000000..365dd908bb
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/acpi-fpdt.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Kay Sievers
+
+ 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-basic/time-util.h"
+
+int acpi_get_boot_usec(usec_t *loader_start, usec_t *loader_exit);
diff --git a/src/libsystemd-shared/include/systemd-shared/apparmor-util.h b/src/libsystemd-shared/include/systemd-shared/apparmor-util.h
new file mode 100644
index 0000000000..524f740152
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/apparmor-util.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ 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 <stdbool.h>
+
+bool mac_apparmor_use(void);
diff --git a/src/libsystemd-shared/include/systemd-shared/ask-password-api.h b/src/libsystemd-shared/include/systemd-shared/ask-password-api.h
new file mode 100644
index 0000000000..cdc18c52ad
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/ask-password-api.h
@@ -0,0 +1,38 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+
+#include "systemd-basic/time-util.h"
+
+typedef enum AskPasswordFlags {
+ ASK_PASSWORD_ACCEPT_CACHED = 1,
+ ASK_PASSWORD_PUSH_CACHE = 2,
+ ASK_PASSWORD_ECHO = 4, /* show the password literally while reading, instead of "*" */
+ ASK_PASSWORD_SILENT = 8, /* do no show any password at all while reading */
+ ASK_PASSWORD_NO_TTY = 16,
+ ASK_PASSWORD_NO_AGENT = 32,
+} AskPasswordFlags;
+
+int ask_password_tty(const char *message, const char *keyname, usec_t until, AskPasswordFlags flags, const char *flag_file, char **ret);
+int ask_password_agent(const char *message, const char *icon, const char *id, const char *keyname, usec_t until, AskPasswordFlags flag, char ***ret);
+int ask_password_keyring(const char *keyname, AskPasswordFlags flags, char ***ret);
+int ask_password_auto(const char *message, const char *icon, const char *id, const char *keyname, usec_t until, AskPasswordFlags flag, char ***ret);
diff --git a/src/libsystemd-shared/include/systemd-shared/base-filesystem.h b/src/libsystemd-shared/include/systemd-shared/base-filesystem.h
new file mode 100644
index 0000000000..49599f0a60
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/base-filesystem.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Kay Sievers
+
+ 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 <sys/types.h>
+
+int base_filesystem_create(const char *root, uid_t uid, gid_t gid);
diff --git a/src/libsystemd-shared/include/systemd-shared/boot-timestamps.h b/src/libsystemd-shared/include/systemd-shared/boot-timestamps.h
new file mode 100644
index 0000000000..f67d4f25b1
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/boot-timestamps.h
@@ -0,0 +1,25 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+ Copyright 2013 Kay Sievers
+
+ 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-basic/time-util.h"
+
+int boot_timestamps(const dual_timestamp *n, dual_timestamp *firmware, dual_timestamp *loader);
diff --git a/src/libsystemd-shared/include/systemd-shared/bus-unit-util.h b/src/libsystemd-shared/include/systemd-shared/bus-unit-util.h
new file mode 100644
index 0000000000..af99c71c3f
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/bus-unit-util.h
@@ -0,0 +1,58 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <systemd/sd-bus.h>
+
+#include "install.h"
+#include "output-mode.h"
+
+typedef struct UnitInfo {
+ const char *machine;
+ const char *id;
+ const char *description;
+ const char *load_state;
+ const char *active_state;
+ const char *sub_state;
+ const char *following;
+ const char *unit_path;
+ uint32_t job_id;
+ const char *job_type;
+ const char *job_path;
+} UnitInfo;
+
+int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u);
+
+int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment);
+int bus_append_unit_property_assignment_many(sd_bus_message *m, char **l);
+
+typedef struct BusWaitForJobs BusWaitForJobs;
+
+int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret);
+void bus_wait_for_jobs_free(BusWaitForJobs *d);
+int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path);
+int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args);
+int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs*, bus_wait_for_jobs_free);
+
+int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes);
+
+int unit_show_processes(sd_bus *bus, const char *unit, const char *cgroup_path, const char *prefix, unsigned n_columns, OutputFlags flags, sd_bus_error *error);
diff --git a/src/libsystemd-shared/include/systemd-shared/cgroup-show.h b/src/libsystemd-shared/include/systemd-shared/cgroup-show.h
new file mode 100644
index 0000000000..5c1d6e6d98
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/cgroup-show.h
@@ -0,0 +1,32 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include "logs-show.h"
+#include "output-mode.h"
+
+int show_cgroup_by_path(const char *path, const char *prefix, unsigned columns, OutputFlags flags);
+int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned columns, OutputFlags flags);
+
+int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags);
+int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, const pid_t extra_pids[], unsigned n_extra_pids, OutputFlags flags);
diff --git a/src/libsystemd-shared/include/systemd-shared/clean-ipc.h b/src/libsystemd-shared/include/systemd-shared/clean-ipc.h
new file mode 100644
index 0000000000..6ca57f44fd
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/clean-ipc.h
@@ -0,0 +1,26 @@
+#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 <sys/types.h>
+
+int clean_ipc(uid_t uid, gid_t gid);
+int clean_ipc_by_uid(uid_t uid);
+int clean_ipc_by_gid(gid_t gid);
diff --git a/src/libsystemd-shared/include/systemd-shared/condition.h b/src/libsystemd-shared/include/systemd-shared/condition.h
new file mode 100644
index 0000000000..a94705768c
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/condition.h
@@ -0,0 +1,94 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+#include <stdio.h>
+
+#include "systemd-basic/list.h"
+#include "systemd-basic/macro.h"
+
+typedef enum ConditionType {
+ CONDITION_ARCHITECTURE,
+ CONDITION_VIRTUALIZATION,
+ CONDITION_HOST,
+ CONDITION_KERNEL_COMMAND_LINE,
+ CONDITION_SECURITY,
+ CONDITION_CAPABILITY,
+ CONDITION_AC_POWER,
+
+ CONDITION_NEEDS_UPDATE,
+ CONDITION_FIRST_BOOT,
+
+ CONDITION_PATH_EXISTS,
+ CONDITION_PATH_EXISTS_GLOB,
+ CONDITION_PATH_IS_DIRECTORY,
+ CONDITION_PATH_IS_SYMBOLIC_LINK,
+ CONDITION_PATH_IS_MOUNT_POINT,
+ CONDITION_PATH_IS_READ_WRITE,
+ CONDITION_DIRECTORY_NOT_EMPTY,
+ CONDITION_FILE_NOT_EMPTY,
+ CONDITION_FILE_IS_EXECUTABLE,
+
+ CONDITION_NULL,
+
+ _CONDITION_TYPE_MAX,
+ _CONDITION_TYPE_INVALID = -1
+} ConditionType;
+
+typedef enum ConditionResult {
+ CONDITION_UNTESTED,
+ CONDITION_SUCCEEDED,
+ CONDITION_FAILED,
+ CONDITION_ERROR,
+ _CONDITION_RESULT_MAX,
+ _CONDITION_RESULT_INVALID = -1
+} ConditionResult;
+
+typedef struct Condition {
+ ConditionType type:8;
+
+ bool trigger:1;
+ bool negate:1;
+
+ ConditionResult result:6;
+
+ char *parameter;
+
+ LIST_FIELDS(struct Condition, conditions);
+} Condition;
+
+Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate);
+void condition_free(Condition *c);
+Condition* condition_free_list(Condition *c);
+
+int condition_test(Condition *c);
+
+void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t));
+void condition_dump_list(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t));
+
+const char* condition_type_to_string(ConditionType t) _const_;
+ConditionType condition_type_from_string(const char *s) _pure_;
+
+const char* assert_type_to_string(ConditionType t) _const_;
+ConditionType assert_type_from_string(const char *s) _pure_;
+
+const char* condition_result_to_string(ConditionResult r) _const_;
+ConditionResult condition_result_from_string(const char *s) _pure_;
diff --git a/src/libsystemd-shared/include/systemd-shared/conf-parser.h b/src/libsystemd-shared/include/systemd-shared/conf-parser.h
new file mode 100644
index 0000000000..b5fd4c1787
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/conf-parser.h
@@ -0,0 +1,242 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <syslog.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+
+/* An abstract parser for simple, line based, shallow configuration
+ * files consisting of variable assignments only. */
+
+/* Prototype for a parser for a specific configuration setting */
+typedef int (*ConfigParserCallback)(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata);
+
+/* Wraps information for parsing a specific configuration variable, to
+ * be stored in a simple array */
+typedef struct ConfigTableItem {
+ const char *section; /* Section */
+ const char *lvalue; /* Name of the variable */
+ ConfigParserCallback parse; /* Function that is called to parse the variable's value */
+ int ltype; /* Distinguish different variables passed to the same callback */
+ void *data; /* Where to store the variable's data */
+} ConfigTableItem;
+
+/* Wraps information for parsing a specific configuration variable, to
+ * be stored in a gperf perfect hashtable */
+typedef struct ConfigPerfItem {
+ const char *section_and_lvalue; /* Section + "." + name of the variable */
+ ConfigParserCallback parse; /* Function that is called to parse the variable's value */
+ int ltype; /* Distinguish different variables passed to the same callback */
+ size_t offset; /* Offset where to store data, from the beginning of userdata */
+} ConfigPerfItem;
+
+/* Prototype for a low-level gperf lookup function */
+typedef const ConfigPerfItem* (*ConfigPerfItemLookup)(const char *section_and_lvalue, unsigned length);
+
+/* Prototype for a generic high-level lookup function */
+typedef int (*ConfigItemLookup)(
+ const void *table,
+ const char *section,
+ const char *lvalue,
+ ConfigParserCallback *func,
+ int *ltype,
+ void **data,
+ void *userdata);
+
+/* Linear table search implementation of ConfigItemLookup, based on
+ * ConfigTableItem arrays */
+int config_item_table_lookup(const void *table, const char *section, const char *lvalue, ConfigParserCallback *func, int *ltype, void **data, void *userdata);
+
+/* gperf implementation of ConfigItemLookup, based on gperf
+ * ConfigPerfItem tables */
+int config_item_perf_lookup(const void *table, const char *section, const char *lvalue, ConfigParserCallback *func, int *ltype, void **data, void *userdata);
+
+int config_parse(
+ const char *unit,
+ const char *filename,
+ FILE *f,
+ const char *sections, /* nulstr */
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ bool allow_include,
+ bool warn,
+ void *userdata);
+
+int config_parse_many_nulstr(
+ const char *conf_file, /* possibly NULL */
+ const char *conf_file_dirs, /* nulstr */
+ const char *sections, /* nulstr */
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ void *userdata);
+
+int config_parse_many(
+ const char *conf_file, /* possibly NULL */
+ const char* const* conf_file_dirs,
+ const char *dropin_dirname,
+ const char *sections, /* nulstr */
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ void *userdata);
+
+/* Generic parsers */
+int config_parse_int(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_unsigned(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_long(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_uint16(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_uint32(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_uint64(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_double(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_iec_size(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_si_size(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_iec_uint64(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_bool(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_tristate(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_string(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_path(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_strv(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_sec(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_nsec(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_log_facility(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_log_level(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_signal(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_personality(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_ifname(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+
+#define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \
+ int function(const char *unit, \
+ const char *filename, \
+ unsigned line, \
+ const char *section, \
+ unsigned section_line, \
+ const char *lvalue, \
+ int ltype, \
+ const char *rvalue, \
+ void *data, \
+ void *userdata) { \
+ \
+ type *i = data, x; \
+ \
+ assert(filename); \
+ assert(lvalue); \
+ assert(rvalue); \
+ assert(data); \
+ \
+ if ((x = name##_from_string(rvalue)) < 0) { \
+ log_syntax(unit, LOG_ERR, filename, line, -x, \
+ msg ", ignoring: %s", rvalue); \
+ return 0; \
+ } \
+ \
+ *i = x; \
+ return 0; \
+ }
+
+#define DEFINE_CONFIG_PARSE_ENUMV(function,name,type,invalid,msg) \
+ int function(const char *unit, \
+ const char *filename, \
+ unsigned line, \
+ const char *section, \
+ unsigned section_line, \
+ const char *lvalue, \
+ int ltype, \
+ const char *rvalue, \
+ void *data, \
+ void *userdata) { \
+ \
+ type **enums = data, x, *ys; \
+ _cleanup_free_ type *xs = NULL; \
+ const char *word, *state; \
+ size_t l, i = 0; \
+ \
+ assert(filename); \
+ assert(lvalue); \
+ assert(rvalue); \
+ assert(data); \
+ \
+ xs = new0(type, 1); \
+ if (!xs) \
+ return -ENOMEM; \
+ \
+ *xs = invalid; \
+ \
+ FOREACH_WORD(word, l, rvalue, state) { \
+ _cleanup_free_ char *en = NULL; \
+ type *new_xs; \
+ \
+ en = strndup(word, l); \
+ if (!en) \
+ return -ENOMEM; \
+ \
+ if ((x = name##_from_string(en)) < 0) { \
+ log_syntax(unit, LOG_ERR, filename, line, \
+ -x, msg ", ignoring: %s", en); \
+ continue; \
+ } \
+ \
+ for (ys = xs; x != invalid && *ys != invalid; ys++) { \
+ if (*ys == x) { \
+ log_syntax(unit, LOG_ERR, filename, \
+ line, -x, \
+ "Duplicate entry, ignoring: %s", \
+ en); \
+ x = invalid; \
+ } \
+ } \
+ \
+ if (x == invalid) \
+ continue; \
+ \
+ *(xs + i) = x; \
+ new_xs = realloc(xs, (++i + 1) * sizeof(type)); \
+ if (new_xs) \
+ xs = new_xs; \
+ else \
+ return -ENOMEM; \
+ \
+ *(xs + i) = invalid; \
+ } \
+ \
+ free(*enums); \
+ *enums = xs; \
+ xs = NULL; \
+ \
+ return 0; \
+ }
diff --git a/src/libsystemd-shared/include/systemd-shared/dev-setup.h b/src/libsystemd-shared/include/systemd-shared/dev-setup.h
new file mode 100644
index 0000000000..5766a62060
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/dev-setup.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2012 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 <sys/types.h>
+
+int dev_setup(const char *prefix, uid_t uid, gid_t gid);
diff --git a/src/libsystemd-shared/include/systemd-shared/dns-domain.h b/src/libsystemd-shared/include/systemd-shared/dns-domain.h
new file mode 100644
index 0000000000..6a68cbbe9f
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/dns-domain.h
@@ -0,0 +1,109 @@
+#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 <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/in-addr-util.h"
+
+/* Length of a single label, with all escaping removed, excluding any trailing dot or NUL byte */
+#define DNS_LABEL_MAX 63
+
+/* Worst case length of a single label, with all escaping applied and room for a trailing NUL byte. */
+#define DNS_LABEL_ESCAPED_MAX (DNS_LABEL_MAX*4+1)
+
+/* Maximum length of a full hostname, consisting of a series of unescaped labels, and no trailing dot or NUL byte */
+#define DNS_HOSTNAME_MAX 253
+
+/* Maximum length of a full hostname, on the wire, including the final NUL byte */
+#define DNS_WIRE_FOMAT_HOSTNAME_MAX 255
+
+/* Maximum number of labels per valid hostname */
+#define DNS_N_LABELS_MAX 127
+
+int dns_label_unescape(const char **name, char *dest, size_t sz);
+int dns_label_unescape_suffix(const char *name, const char **label_end, char *dest, size_t sz);
+int dns_label_escape(const char *p, size_t l, char *dest, size_t sz);
+int dns_label_escape_new(const char *p, size_t l, char **ret);
+
+static inline int dns_name_parent(const char **name) {
+ return dns_label_unescape(name, NULL, DNS_LABEL_MAX);
+}
+
+int dns_label_apply_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max);
+int dns_label_undo_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max);
+
+int dns_name_concat(const char *a, const char *b, char **ret);
+
+static inline int dns_name_normalize(const char *s, char **ret) {
+ /* dns_name_concat() normalizes as a side-effect */
+ return dns_name_concat(s, NULL, ret);
+}
+
+static inline int dns_name_is_valid(const char *s) {
+ int r;
+
+ /* dns_name_normalize() verifies as a side effect */
+ r = dns_name_normalize(s, NULL);
+ if (r == -EINVAL)
+ return 0;
+ if (r < 0)
+ return r;
+ return 1;
+}
+
+void dns_name_hash_func(const void *s, struct siphash *state);
+int dns_name_compare_func(const void *a, const void *b);
+extern const struct hash_ops dns_name_hash_ops;
+
+int dns_name_between(const char *a, const char *b, const char *c);
+int dns_name_equal(const char *x, const char *y);
+int dns_name_endswith(const char *name, const char *suffix);
+int dns_name_startswith(const char *name, const char *prefix);
+
+int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret);
+
+int dns_name_reverse(int family, const union in_addr_union *a, char **ret);
+int dns_name_address(const char *p, int *family, union in_addr_union *a);
+
+bool dns_name_is_root(const char *name);
+bool dns_name_is_single_label(const char *name);
+
+int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len, bool canonical);
+
+bool dns_srv_type_is_valid(const char *name);
+bool dns_service_name_is_valid(const char *name);
+
+int dns_service_join(const char *name, const char *type, const char *domain, char **ret);
+int dns_service_split(const char *joined, char **name, char **type, char **domain);
+
+int dns_name_suffix(const char *name, unsigned n_labels, const char **ret);
+int dns_name_count_labels(const char *name);
+
+int dns_name_skip(const char *a, unsigned n_labels, const char **ret);
+int dns_name_equal_skip(const char *a, unsigned n_labels, const char *b);
+
+int dns_name_common_suffix(const char *a, const char *b, const char **ret);
+
+int dns_name_apply_idna(const char *name, char **ret);
diff --git a/src/libsystemd-shared/include/systemd-shared/dropin.h b/src/libsystemd-shared/include/systemd-shared/dropin.h
new file mode 100644
index 0000000000..4ce904460d
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/dropin.h
@@ -0,0 +1,61 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/set.h"
+#include "systemd-basic/unit-name.h"
+
+int drop_in_file(const char *dir, const char *unit, unsigned level,
+ const char *name, char **_p, char **_q);
+
+int write_drop_in(const char *dir, const char *unit, unsigned level,
+ const char *name, const char *data);
+
+int write_drop_in_format(const char *dir, const char *unit, unsigned level,
+ const char *name, const char *format, ...) _printf_(5, 6);
+
+/**
+ * This callback will be called for each directory entry @entry,
+ * with @filepath being the full path to the entry.
+ *
+ * If return value is negative, loop will be aborted.
+ */
+typedef int (*dependency_consumer_t)(UnitDependency dependency,
+ const char *entry,
+ const char* filepath,
+ void *arg);
+
+int unit_file_process_dir(
+ Set * unit_path_cache,
+ const char *unit_path,
+ const char *name,
+ const char *suffix,
+ UnitDependency dependency,
+ dependency_consumer_t consumer,
+ void *arg,
+ char ***strv);
+
+int unit_file_find_dropin_paths(
+ char **lookup_path,
+ Set *unit_path_cache,
+ Set *names,
+ char ***paths);
diff --git a/src/libsystemd-shared/include/systemd-shared/efivars.h b/src/libsystemd-shared/include/systemd-shared/efivars.h
new file mode 100644
index 0000000000..2bf245607a
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/efivars.h
@@ -0,0 +1,131 @@
+#pragma once
+
+/***
+ 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 <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include <systemd/sd-id128.h>
+
+#include "systemd-basic/time-util.h"
+
+#define EFI_VENDOR_LOADER SD_ID128_MAKE(4a,67,b0,82,0a,4c,41,cf,b6,c7,44,0b,29,bb,8c,4f)
+#define EFI_VENDOR_GLOBAL SD_ID128_MAKE(8b,e4,df,61,93,ca,11,d2,aa,0d,00,e0,98,03,2b,8c)
+#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
+#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
+#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
+
+#ifdef ENABLE_EFI
+
+bool is_efi_boot(void);
+bool is_efi_secure_boot(void);
+bool is_efi_secure_boot_setup_mode(void);
+int efi_reboot_to_firmware_supported(void);
+int efi_get_reboot_to_firmware(void);
+int efi_set_reboot_to_firmware(bool value);
+
+int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size);
+int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size);
+int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p);
+
+int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active);
+int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path);
+int efi_remove_boot_option(uint16_t id);
+int efi_get_boot_order(uint16_t **order);
+int efi_set_boot_order(uint16_t *order, size_t n);
+int efi_get_boot_options(uint16_t **options);
+
+int efi_loader_get_device_part_uuid(sd_id128_t *u);
+int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader);
+
+#else
+
+static inline bool is_efi_boot(void) {
+ return false;
+}
+
+static inline bool is_efi_secure_boot(void) {
+ return false;
+}
+
+static inline bool is_efi_secure_boot_setup_mode(void) {
+ return false;
+}
+
+static inline int efi_reboot_to_firmware_supported(void) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_get_reboot_to_firmware(void) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_set_reboot_to_firmware(bool value) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_remove_boot_option(uint16_t id) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_get_boot_order(uint16_t **order) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_set_boot_order(uint16_t *order, size_t n) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_get_boot_options(uint16_t **options) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_loader_get_device_part_uuid(sd_id128_t *u) {
+ return -EOPNOTSUPP;
+}
+
+static inline int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader) {
+ return -EOPNOTSUPP;
+}
+
+#endif
+
+char *efi_tilt_backslashes(char *s);
diff --git a/src/libsystemd-shared/include/systemd-shared/fdset.h b/src/libsystemd-shared/include/systemd-shared/fdset.h
new file mode 100644
index 0000000000..0b2a9926e3
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/fdset.h
@@ -0,0 +1,58 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/set.h"
+
+typedef struct FDSet FDSet;
+
+FDSet* fdset_new(void);
+FDSet* fdset_free(FDSet *s);
+
+int fdset_put(FDSet *s, int fd);
+int fdset_put_dup(FDSet *s, int fd);
+
+bool fdset_contains(FDSet *s, int fd);
+int fdset_remove(FDSet *s, int fd);
+
+int fdset_new_array(FDSet **ret, const int *fds, unsigned n_fds);
+int fdset_new_fill(FDSet **ret);
+int fdset_new_listen_fds(FDSet **ret, bool unset);
+
+int fdset_cloexec(FDSet *fds, bool b);
+
+int fdset_close_others(FDSet *fds);
+
+unsigned fdset_size(FDSet *fds);
+bool fdset_isempty(FDSet *fds);
+
+int fdset_iterate(FDSet *s, Iterator *i);
+
+int fdset_steal_first(FDSet *fds);
+
+#define FDSET_FOREACH(fd, fds, i) \
+ for ((i) = ITERATOR_FIRST, (fd) = fdset_iterate((fds), &(i)); (fd) >= 0; (fd) = fdset_iterate((fds), &(i)))
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(FDSet*, fdset_free);
+#define _cleanup_fdset_free_ _cleanup_(fdset_freep)
diff --git a/src/libsystemd-shared/include/systemd-shared/fstab-util.h b/src/libsystemd-shared/include/systemd-shared/fstab-util.h
new file mode 100644
index 0000000000..3e82d9bb4a
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/fstab-util.h
@@ -0,0 +1,52 @@
+#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 <stdbool.h>
+#include <stddef.h>
+
+#include "systemd-basic/macro.h"
+
+bool fstab_is_mount_point(const char *mount);
+
+int fstab_filter_options(const char *opts, const char *names, const char **namefound, char **value, char **filtered);
+
+int fstab_extract_values(const char *opts, const char *name, char ***values);
+
+static inline bool fstab_test_option(const char *opts, const char *names) {
+ return !!fstab_filter_options(opts, names, NULL, NULL, NULL);
+}
+
+int fstab_find_pri(const char *options, int *ret);
+
+static inline bool fstab_test_yes_no_option(const char *opts, const char *yes_no) {
+ int r;
+ const char *opt;
+
+ /* If first name given is last, return 1.
+ * If second name given is last or neither is found, return 0. */
+
+ r = fstab_filter_options(opts, yes_no, &opt, NULL, NULL);
+ assert(r >= 0);
+
+ return opt == yes_no;
+}
+
+char *fstab_node_to_udev_node(const char *p);
diff --git a/src/libsystemd-shared/include/systemd-shared/generator.h b/src/libsystemd-shared/include/systemd-shared/generator.h
new file mode 100644
index 0000000000..a6017c1b76
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/generator.h
@@ -0,0 +1,40 @@
+#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 <stdio.h>
+
+int generator_write_fsck_deps(
+ FILE *f,
+ const char *dir,
+ const char *what,
+ const char *where,
+ const char *type);
+
+int generator_write_timeouts(
+ const char *dir,
+ const char *what,
+ const char *where,
+ const char *opts,
+ char **filtered);
+
+int generator_write_initrd_root_device_deps(
+ const char *dir,
+ const char *what);
diff --git a/src/libsystemd-shared/include/systemd-shared/gpt.h b/src/libsystemd-shared/include/systemd-shared/gpt.h
new file mode 100644
index 0000000000..07153b51f4
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/gpt.h
@@ -0,0 +1,66 @@
+#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 <endian.h>
+
+#include <systemd/sd-id128.h>
+
+/* We only support root disk discovery for x86, x86-64, Itanium and ARM for
+ * now, since EFI for anything else doesn't really exist, and we only
+ * care for root partitions on the same disk as the EFI ESP. */
+
+#define GPT_ROOT_X86 SD_ID128_MAKE(44,47,95,40,f2,97,41,b2,9a,f7,d1,31,d5,f0,45,8a)
+#define GPT_ROOT_X86_64 SD_ID128_MAKE(4f,68,bc,e3,e8,cd,4d,b1,96,e7,fb,ca,f9,84,b7,09)
+#define GPT_ROOT_ARM SD_ID128_MAKE(69,da,d7,10,2c,e4,4e,3c,b1,6c,21,a1,d4,9a,be,d3)
+#define GPT_ROOT_ARM_64 SD_ID128_MAKE(b9,21,b0,45,1d,f0,41,c3,af,44,4c,6f,28,0d,3f,ae)
+#define GPT_ROOT_IA64 SD_ID128_MAKE(99,3d,8d,3d,f8,0e,42,25,85,5a,9d,af,8e,d7,ea,97)
+
+#define GPT_ESP SD_ID128_MAKE(c1,2a,73,28,f8,1f,11,d2,ba,4b,00,a0,c9,3e,c9,3b)
+#define GPT_SWAP SD_ID128_MAKE(06,57,fd,6d,a4,ab,43,c4,84,e5,09,33,c8,4b,4f,4f)
+#define GPT_HOME SD_ID128_MAKE(93,3a,c7,e1,2e,b4,4f,13,b8,44,0e,14,e2,ae,f9,15)
+#define GPT_SRV SD_ID128_MAKE(3b,8f,84,25,20,e0,4f,3b,90,7f,1a,25,a7,6f,98,e8)
+
+#if defined(__x86_64__)
+# define GPT_ROOT_NATIVE GPT_ROOT_X86_64
+# define GPT_ROOT_SECONDARY GPT_ROOT_X86
+#elif defined(__i386__)
+# define GPT_ROOT_NATIVE GPT_ROOT_X86
+#endif
+
+#if defined(__ia64__)
+# define GPT_ROOT_NATIVE GPT_ROOT_IA64
+#endif
+
+#if defined(__aarch64__) && (__BYTE_ORDER != __BIG_ENDIAN)
+# define GPT_ROOT_NATIVE GPT_ROOT_ARM_64
+# define GPT_ROOT_SECONDARY GPT_ROOT_ARM
+#elif defined(__arm__) && (__BYTE_ORDER != __BIG_ENDIAN)
+# define GPT_ROOT_NATIVE GPT_ROOT_ARM
+#endif
+
+/* Flags we recognize on the root, swap, home and srv partitions when
+ * doing auto-discovery. These happen to be identical to what
+ * Microsoft defines for its own Basic Data Partitions, but that's
+ * just because we saw no point in defining any other values here. */
+#define GPT_FLAG_READ_ONLY (1ULL << 60)
+#define GPT_FLAG_NO_AUTO (1ULL << 63)
+
+#define GPT_LINUX_GENERIC SD_ID128_MAKE(0f,c6,3d,af,84,83,47,72,8e,79,3d,69,d8,47,7d,e4)
diff --git a/src/libsystemd-shared/include/systemd-shared/ima-util.h b/src/libsystemd-shared/include/systemd-shared/ima-util.h
new file mode 100644
index 0000000000..5be94761fd
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/ima-util.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ 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 <stdbool.h>
+
+bool use_ima(void);
diff --git a/src/libsystemd-shared/include/systemd-shared/import-util.h b/src/libsystemd-shared/include/systemd-shared/import-util.h
new file mode 100644
index 0000000000..a5ceb52b8f
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/import-util.h
@@ -0,0 +1,43 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+
+#include "systemd-basic/macro.h"
+
+typedef enum ImportVerify {
+ IMPORT_VERIFY_NO,
+ IMPORT_VERIFY_CHECKSUM,
+ IMPORT_VERIFY_SIGNATURE,
+ _IMPORT_VERIFY_MAX,
+ _IMPORT_VERIFY_INVALID = -1,
+} ImportVerify;
+
+int import_url_last_component(const char *url, char **ret);
+int import_url_change_last_component(const char *url, const char *suffix, char **ret);
+
+const char* import_verify_to_string(ImportVerify v) _const_;
+ImportVerify import_verify_from_string(const char *s) _pure_;
+
+int tar_strip_suffixes(const char *name, char **ret);
+int raw_strip_suffixes(const char *name, char **ret);
+
+int import_assign_pool_quota_and_warn(const char *path);
diff --git a/src/libsystemd-shared/include/systemd-shared/initreq.h b/src/libsystemd-shared/include/systemd-shared/initreq.h
new file mode 100644
index 0000000000..710037d84b
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/initreq.h
@@ -0,0 +1,77 @@
+/*
+ * initreq.h Interface to talk to init through /dev/initctl.
+ *
+ * Copyright (C) 1995-2004 Miquel van Smoorenburg
+ *
+ * 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 of the License, or (at your option) any later version.
+ *
+ * Version: @(#)initreq.h 1.28 31-Mar-2004 MvS
+ *
+ */
+#ifndef _INITREQ_H
+#define _INITREQ_H
+
+#include <sys/param.h>
+
+#if defined(__FreeBSD_kernel__)
+# define INIT_FIFO "/etc/.initctl"
+#else
+# define INIT_FIFO "/dev/initctl"
+#endif
+
+#define INIT_MAGIC 0x03091969
+#define INIT_CMD_START 0
+#define INIT_CMD_RUNLVL 1
+#define INIT_CMD_POWERFAIL 2
+#define INIT_CMD_POWERFAILNOW 3
+#define INIT_CMD_POWEROK 4
+#define INIT_CMD_BSD 5
+#define INIT_CMD_SETENV 6
+#define INIT_CMD_UNSETENV 7
+
+#define INIT_CMD_CHANGECONS 12345
+
+#ifdef MAXHOSTNAMELEN
+# define INITRQ_HLEN MAXHOSTNAMELEN
+#else
+# define INITRQ_HLEN 64
+#endif
+
+/*
+ * This is what BSD 4.4 uses when talking to init.
+ * Linux doesn't use this right now.
+ */
+struct init_request_bsd {
+ char gen_id[8]; /* Beats me.. telnetd uses "fe" */
+ char tty_id[16]; /* Tty name minus /dev/tty */
+ char host[INITRQ_HLEN]; /* Hostname */
+ char term_type[16]; /* Terminal type */
+ int signal; /* Signal to send */
+ int pid; /* Process to send to */
+ char exec_name[128]; /* Program to execute */
+ char reserved[128]; /* For future expansion. */
+};
+
+
+/*
+ * Because of legacy interfaces, "runlevel" and "sleeptime"
+ * aren't in a separate struct in the union.
+ *
+ * The weird sizes are because init expects the whole
+ * struct to be 384 bytes.
+ */
+struct init_request {
+ int magic; /* Magic number */
+ int cmd; /* What kind of request */
+ int runlevel; /* Runlevel to change to */
+ int sleeptime; /* Time between TERM and KILL */
+ union {
+ struct init_request_bsd bsd;
+ char data[368];
+ } i;
+};
+
+#endif
diff --git a/src/libsystemd-shared/include/systemd-shared/install-printf.h b/src/libsystemd-shared/include/systemd-shared/install-printf.h
new file mode 100644
index 0000000000..8a570fc265
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/install-printf.h
@@ -0,0 +1,24 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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 "install.h"
+
+int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret);
diff --git a/src/libsystemd-shared/include/systemd-shared/install.h b/src/libsystemd-shared/include/systemd-shared/install.h
new file mode 100644
index 0000000000..1b94cd59f7
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/install.h
@@ -0,0 +1,257 @@
+#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 <stdbool.h>
+
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/unit-name.h"
+
+typedef enum UnitFileChangeType UnitFileChangeType;
+typedef enum UnitFileFlags UnitFileFlags;
+typedef enum UnitFilePresetMode UnitFilePresetMode;
+typedef enum UnitFileScope UnitFileScope;
+typedef enum UnitFileState UnitFileState;
+typedef enum UnitFileType UnitFileType;
+typedef struct UnitFileChange UnitFileChange;
+typedef struct UnitFileInstallInfo UnitFileInstallInfo;
+typedef struct UnitFileList UnitFileList;
+
+#include "path-lookup.h"
+
+enum UnitFileScope {
+ UNIT_FILE_SYSTEM,
+ UNIT_FILE_GLOBAL,
+ UNIT_FILE_USER,
+ _UNIT_FILE_SCOPE_MAX,
+ _UNIT_FILE_SCOPE_INVALID = -1
+};
+
+enum UnitFileState {
+ UNIT_FILE_ENABLED,
+ UNIT_FILE_ENABLED_RUNTIME,
+ UNIT_FILE_LINKED,
+ UNIT_FILE_LINKED_RUNTIME,
+ UNIT_FILE_MASKED,
+ UNIT_FILE_MASKED_RUNTIME,
+ UNIT_FILE_STATIC,
+ UNIT_FILE_DISABLED,
+ UNIT_FILE_INDIRECT,
+ UNIT_FILE_GENERATED,
+ UNIT_FILE_TRANSIENT,
+ UNIT_FILE_BAD,
+ _UNIT_FILE_STATE_MAX,
+ _UNIT_FILE_STATE_INVALID = -1
+};
+
+enum UnitFilePresetMode {
+ UNIT_FILE_PRESET_FULL,
+ UNIT_FILE_PRESET_ENABLE_ONLY,
+ UNIT_FILE_PRESET_DISABLE_ONLY,
+ _UNIT_FILE_PRESET_MAX,
+ _UNIT_FILE_PRESET_INVALID = -1
+};
+
+enum UnitFileChangeType {
+ UNIT_FILE_SYMLINK,
+ UNIT_FILE_UNLINK,
+ UNIT_FILE_IS_MASKED,
+ UNIT_FILE_IS_DANGLING,
+ _UNIT_FILE_CHANGE_TYPE_MAX,
+ _UNIT_FILE_CHANGE_INVALID = INT_MIN
+};
+
+enum UnitFileFlags {
+ UNIT_FILE_RUNTIME = 1,
+ UNIT_FILE_FORCE = 1 << 1,
+ UNIT_FILE_DRY_RUN = 1 << 2,
+};
+
+/* type can either one of the UnitFileChangeTypes listed above, or a negative error.
+ * If source is specified, it should be the contents of the path symlink.
+ * In case of an error, source should be the existing symlink contents or NULL
+ */
+struct UnitFileChange {
+ int type; /* UnitFileChangeType or bust */
+ char *path;
+ char *source;
+};
+
+static inline bool unit_file_changes_have_modification(const UnitFileChange* changes, unsigned n_changes) {
+ unsigned i;
+ for (i = 0; i < n_changes; i++)
+ if (IN_SET(changes[i].type, UNIT_FILE_SYMLINK, UNIT_FILE_UNLINK))
+ return true;
+ return false;
+}
+
+struct UnitFileList {
+ char *path;
+ UnitFileState state;
+};
+
+enum UnitFileType {
+ UNIT_FILE_TYPE_REGULAR,
+ UNIT_FILE_TYPE_SYMLINK,
+ UNIT_FILE_TYPE_MASKED,
+ _UNIT_FILE_TYPE_MAX,
+ _UNIT_FILE_TYPE_INVALID = -1,
+};
+
+struct UnitFileInstallInfo {
+ char *name;
+ char *path;
+
+ char **aliases;
+ char **wanted_by;
+ char **required_by;
+ char **also;
+
+ char *default_instance;
+ char *symlink_target;
+
+ UnitFileType type;
+ bool auxiliary;
+};
+
+static inline bool UNIT_FILE_INSTALL_INFO_HAS_RULES(UnitFileInstallInfo *i) {
+ assert(i);
+
+ return !strv_isempty(i->aliases) ||
+ !strv_isempty(i->wanted_by) ||
+ !strv_isempty(i->required_by);
+}
+
+static inline bool UNIT_FILE_INSTALL_INFO_HAS_ALSO(UnitFileInstallInfo *i) {
+ assert(i);
+
+ return !strv_isempty(i->also);
+}
+
+bool unit_type_may_alias(UnitType type) _const_;
+bool unit_type_may_template(UnitType type) _const_;
+
+int unit_file_enable(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_disable(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_reenable(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_preset(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFilePresetMode mode,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_preset_all(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ UnitFilePresetMode mode,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_mask(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_unmask(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_link(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_revert(
+ UnitFileScope scope,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_set_default(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ const char *file,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+int unit_file_get_default(
+ UnitFileScope scope,
+ const char *root_dir,
+ char **name);
+int unit_file_add_dependency(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ const char *target,
+ UnitDependency dep,
+ UnitFileChange **changes,
+ unsigned *n_changes);
+
+int unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename, UnitFileState *ret);
+int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name);
+
+int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h, char **states, char **patterns);
+Hashmap* unit_file_list_free(Hashmap *h);
+
+int unit_file_changes_add(UnitFileChange **changes, unsigned *n_changes, UnitFileChangeType type, const char *path, const char *source);
+void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes);
+void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet);
+
+int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name);
+
+const char *unit_file_state_to_string(UnitFileState s) _const_;
+UnitFileState unit_file_state_from_string(const char *s) _pure_;
+/* from_string conversion is unreliable because of the overlap between -EPERM and -1 for error. */
+
+const char *unit_file_change_type_to_string(UnitFileChangeType s) _const_;
+UnitFileChangeType unit_file_change_type_from_string(const char *s) _pure_;
+
+const char *unit_file_preset_mode_to_string(UnitFilePresetMode m) _const_;
+UnitFilePresetMode unit_file_preset_mode_from_string(const char *s) _pure_;
diff --git a/src/libsystemd-shared/include/systemd-shared/logs-show.h b/src/libsystemd-shared/include/systemd-shared/logs-show.h
new file mode 100644
index 0000000000..1596a5875a
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/logs-show.h
@@ -0,0 +1,71 @@
+#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 <stddef.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+#include <systemd/sd-journal.h>
+
+#include "systemd-basic/macro.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/util.h"
+
+#include "output-mode.h"
+
+int output_journal(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags,
+ bool *ellipsized);
+
+int add_match_this_boot(sd_journal *j, const char *machine);
+
+int add_matches_for_unit(
+ sd_journal *j,
+ const char *unit);
+
+int add_matches_for_user_unit(
+ sd_journal *j,
+ const char *unit,
+ uid_t uid);
+
+int show_journal_by_unit(
+ FILE *f,
+ const char *unit,
+ OutputMode mode,
+ unsigned n_columns,
+ usec_t not_before,
+ unsigned how_many,
+ uid_t uid,
+ OutputFlags flags,
+ int journal_open_flags,
+ bool system_unit,
+ bool *ellipsized);
+
+void json_escape(
+ FILE *f,
+ const char* p,
+ size_t l,
+ OutputFlags flags);
diff --git a/src/libsystemd-shared/include/systemd-shared/machine-image.h b/src/libsystemd-shared/include/systemd-shared/machine-image.h
new file mode 100644
index 0000000000..7c46fd6996
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/machine-image.h
@@ -0,0 +1,103 @@
+#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>
+#include <stdint.h>
+
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/lockfile-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/time-util.h"
+
+typedef enum ImageType {
+ IMAGE_DIRECTORY,
+ IMAGE_SUBVOLUME,
+ IMAGE_RAW,
+ _IMAGE_TYPE_MAX,
+ _IMAGE_TYPE_INVALID = -1
+} ImageType;
+
+typedef struct Image {
+ ImageType type;
+ char *name;
+ char *path;
+ bool read_only;
+
+ usec_t crtime;
+ usec_t mtime;
+
+ uint64_t usage;
+ uint64_t usage_exclusive;
+ uint64_t limit;
+ uint64_t limit_exclusive;
+
+ void *userdata;
+} Image;
+
+Image *image_unref(Image *i);
+void image_hashmap_free(Hashmap *map);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(Image*, image_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, image_hashmap_free);
+
+int image_find(const char *name, Image **ret);
+int image_discover(Hashmap *map);
+
+int image_remove(Image *i);
+int image_rename(Image *i, const char *new_name);
+int image_clone(Image *i, const char *new_name, bool read_only);
+int image_read_only(Image *i, bool b);
+
+const char* image_type_to_string(ImageType t) _const_;
+ImageType image_type_from_string(const char *s) _pure_;
+
+bool image_name_is_valid(const char *s) _pure_;
+
+int image_path_lock(const char *path, int operation, LockFile *global, LockFile *local);
+int image_name_lock(const char *name, int operation, LockFile *ret);
+
+int image_set_limit(Image *i, uint64_t referenced_max);
+
+static inline bool IMAGE_IS_HIDDEN(const struct Image *i) {
+ assert(i);
+
+ return i->name && i->name[0] == '.';
+}
+
+static inline bool IMAGE_IS_VENDOR(const struct Image *i) {
+ assert(i);
+
+ return i->path && path_startswith(i->path, "/usr");
+}
+
+static inline bool IMAGE_IS_HOST(const struct Image *i) {
+ assert(i);
+
+ if (i->name && streq(i->name, ".host"))
+ return true;
+
+ if (i->path && path_equal(i->path, "/"))
+ return true;
+
+ return false;
+}
diff --git a/src/libsystemd-shared/include/systemd-shared/machine-pool.h b/src/libsystemd-shared/include/systemd-shared/machine-pool.h
new file mode 100644
index 0000000000..fe99b7e0ae
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/machine-pool.h
@@ -0,0 +1,30 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdint.h>
+
+#include <systemd/sd-bus.h>
+
+/* Grow the /var/lib/machines directory after each 10MiB written */
+#define GROW_INTERVAL_BYTES (UINT64_C(10) * UINT64_C(1024) * UINT64_C(1024))
+
+int setup_machine_directory(uint64_t size, sd_bus_error *error);
+int grow_machine_directory(void);
diff --git a/src/libsystemd-shared/include/systemd-shared/output-mode.h b/src/libsystemd-shared/include/systemd-shared/output-mode.h
new file mode 100644
index 0000000000..c3e7942777
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/output-mode.h
@@ -0,0 +1,58 @@
+#pragma once
+
+/***
+ 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 "systemd-basic/macro.h"
+
+typedef enum OutputMode {
+ OUTPUT_SHORT,
+ OUTPUT_SHORT_FULL,
+ OUTPUT_SHORT_ISO,
+ OUTPUT_SHORT_PRECISE,
+ OUTPUT_SHORT_MONOTONIC,
+ OUTPUT_SHORT_UNIX,
+ OUTPUT_VERBOSE,
+ OUTPUT_EXPORT,
+ OUTPUT_JSON,
+ OUTPUT_JSON_PRETTY,
+ OUTPUT_JSON_SSE,
+ OUTPUT_CAT,
+ _OUTPUT_MODE_MAX,
+ _OUTPUT_MODE_INVALID = -1
+} OutputMode;
+
+/* The output flags definitions are shared by the logs and process tree output. Some apply to both, some only to the
+ * logs output, others only to the process tree output. */
+
+typedef enum OutputFlags {
+ OUTPUT_SHOW_ALL = 1 << 0,
+ OUTPUT_FOLLOW = 1 << 1,
+ OUTPUT_WARN_CUTOFF = 1 << 2,
+ OUTPUT_FULL_WIDTH = 1 << 3,
+ OUTPUT_COLOR = 1 << 4,
+ OUTPUT_CATALOG = 1 << 5,
+ OUTPUT_BEGIN_NEWLINE = 1 << 6,
+ OUTPUT_UTC = 1 << 7,
+ OUTPUT_KERNEL_THREADS = 1 << 8,
+ OUTPUT_NO_HOSTNAME = 1 << 9,
+} OutputFlags;
+
+const char* output_mode_to_string(OutputMode m) _const_;
+OutputMode output_mode_from_string(const char *s) _pure_;
diff --git a/src/libsystemd-shared/include/systemd-shared/pager.h b/src/libsystemd-shared/include/systemd-shared/pager.h
new file mode 100644
index 0000000000..57bba54d92
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/pager.h
@@ -0,0 +1,30 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+
+#include "systemd-basic/macro.h"
+
+int pager_open(bool no_pager, bool jump_to_end);
+void pager_close(void);
+bool pager_have(void) _pure_;
+
+int show_man_page(const char *page, bool null_stdio);
diff --git a/src/libsystemd-shared/include/systemd-shared/path-lookup.h b/src/libsystemd-shared/include/systemd-shared/path-lookup.h
new file mode 100644
index 0000000000..43179fd9af
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/path-lookup.h
@@ -0,0 +1,77 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+
+#include "systemd-basic/macro.h"
+
+typedef struct LookupPaths LookupPaths;
+
+#include "install.h"
+
+typedef enum LookupPathsFlags {
+ LOOKUP_PATHS_EXCLUDE_GENERATED = 1,
+} LookupPathsFlags;
+
+struct LookupPaths {
+ /* Where we look for unit files. This includes the individual special paths below, but also any vendor
+ * supplied, static unit file paths. */
+ char **search_path;
+
+ /* Where we shall create or remove our installation symlinks, aka "configuration", and where the user/admin
+ * shall place his own unit files. */
+ char *persistent_config;
+ char *runtime_config;
+
+ /* Where to place generated unit files (i.e. those a "generator" tool generated). Note the special semantics of
+ * this directory: the generators are flushed each time a "systemctl daemon-reload" is issued. The user should
+ * not alter these directories directly. */
+ char *generator;
+ char *generator_early;
+ char *generator_late;
+
+ /* Where to place transient unit files (i.e. those created dynamically via the bus API). Note the special
+ * semantics of this directory: all units created transiently have their unit files removed as the transient
+ * unit is unloaded. The user should not alter this directory directly. */
+ char *transient;
+
+ /* Where the snippets created by "systemctl set-property" are placed. Note that for transient units, the
+ * snippets are placed in the transient directory though (see above). The user should not alter this directory
+ * directly. */
+ char *persistent_control;
+ char *runtime_control;
+
+ /* The root directory prepended to all items above, or NULL */
+ char *root_dir;
+};
+
+int lookup_paths_init(LookupPaths *p, UnitFileScope scope, LookupPathsFlags flags, const char *root_dir);
+
+int lookup_paths_reduce(LookupPaths *p);
+
+int lookup_paths_mkdir_generator(LookupPaths *p);
+void lookup_paths_trim_generator(LookupPaths *p);
+void lookup_paths_flush_generator(LookupPaths *p);
+
+void lookup_paths_free(LookupPaths *p);
+#define _cleanup_lookup_paths_free_ _cleanup_(lookup_paths_free)
+
+char **generator_binary_paths(UnitFileScope scope);
diff --git a/src/libsystemd-shared/include/systemd-shared/ptyfwd.h b/src/libsystemd-shared/include/systemd-shared/ptyfwd.h
new file mode 100644
index 0000000000..b57f421eb3
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/ptyfwd.h
@@ -0,0 +1,54 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2013 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 <stdbool.h>
+
+#include <systemd/sd-event.h>
+
+#include "systemd-basic/macro.h"
+
+typedef struct PTYForward PTYForward;
+
+typedef enum PTYForwardFlags {
+ PTY_FORWARD_READ_ONLY = 1,
+
+ /* Continue reading after hangup? */
+ PTY_FORWARD_IGNORE_VHANGUP = 2,
+
+ /* Continue reading after hangup but only if we never read anything else? */
+ PTY_FORWARD_IGNORE_INITIAL_VHANGUP = 4,
+} PTYForwardFlags;
+
+typedef int (*PTYForwardHandler)(PTYForward *f, int rcode, void*userdata);
+
+int pty_forward_new(sd_event *event, int master, PTYForwardFlags flags, PTYForward **f);
+PTYForward *pty_forward_free(PTYForward *f);
+
+int pty_forward_get_last_char(PTYForward *f, char *ch);
+
+int pty_forward_set_ignore_vhangup(PTYForward *f, bool ignore_vhangup);
+bool pty_forward_get_ignore_vhangup(PTYForward *f);
+
+bool pty_forward_is_done(PTYForward *f);
+
+void pty_forward_set_handler(PTYForward *f, PTYForwardHandler handler, void *userdata);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(PTYForward*, pty_forward_free);
diff --git a/src/libsystemd-shared/include/systemd-shared/resolve-util.h b/src/libsystemd-shared/include/systemd-shared/resolve-util.h
new file mode 100644
index 0000000000..2a6173d79a
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/resolve-util.h
@@ -0,0 +1,60 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include "systemd-basic/macro.h"
+
+typedef enum ResolveSupport ResolveSupport;
+typedef enum DnssecMode DnssecMode;
+
+enum ResolveSupport {
+ RESOLVE_SUPPORT_NO,
+ RESOLVE_SUPPORT_YES,
+ RESOLVE_SUPPORT_RESOLVE,
+ _RESOLVE_SUPPORT_MAX,
+ _RESOLVE_SUPPORT_INVALID = -1
+};
+
+enum DnssecMode {
+ /* No DNSSEC validation is done */
+ DNSSEC_NO,
+
+ /* Validate locally, if the server knows DO, but if not,
+ * don't. Don't trust the AD bit. If the server doesn't do
+ * DNSSEC properly, downgrade to non-DNSSEC operation. Of
+ * course, we then are vulnerable to a downgrade attack, but
+ * that's life and what is configured. */
+ DNSSEC_ALLOW_DOWNGRADE,
+
+ /* Insist on DNSSEC server support, and rather fail than downgrading. */
+ DNSSEC_YES,
+
+ _DNSSEC_MODE_MAX,
+ _DNSSEC_MODE_INVALID = -1
+};
+
+int config_parse_resolve_support(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_dnssec_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+
+const char* resolve_support_to_string(ResolveSupport p) _const_;
+ResolveSupport resolve_support_from_string(const char *s) _pure_;
+
+const char* dnssec_mode_to_string(DnssecMode p) _const_;
+DnssecMode dnssec_mode_from_string(const char *s) _pure_;
diff --git a/src/libsystemd-shared/include/systemd-shared/seccomp-util.h b/src/libsystemd-shared/include/systemd-shared/seccomp-util.h
new file mode 100644
index 0000000000..8e209efef2
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/seccomp-util.h
@@ -0,0 +1,66 @@
+#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 <seccomp.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+const char* seccomp_arch_to_string(uint32_t c);
+int seccomp_arch_from_string(const char *n, uint32_t *ret);
+
+int seccomp_init_conservative(scmp_filter_ctx *ret, uint32_t default_action);
+
+int seccomp_add_secondary_archs(scmp_filter_ctx c);
+
+bool is_seccomp_available(void);
+
+typedef struct SyscallFilterSet {
+ const char *name;
+ const char *value;
+} SyscallFilterSet;
+
+enum {
+ SYSCALL_FILTER_SET_BASIC_IO,
+ SYSCALL_FILTER_SET_CLOCK,
+ SYSCALL_FILTER_SET_CPU_EMULATION,
+ SYSCALL_FILTER_SET_DEBUG,
+ SYSCALL_FILTER_SET_DEFAULT,
+ SYSCALL_FILTER_SET_IO_EVENT,
+ SYSCALL_FILTER_SET_IPC,
+ SYSCALL_FILTER_SET_KEYRING,
+ SYSCALL_FILTER_SET_MODULE,
+ SYSCALL_FILTER_SET_MOUNT,
+ SYSCALL_FILTER_SET_NETWORK_IO,
+ SYSCALL_FILTER_SET_OBSOLETE,
+ SYSCALL_FILTER_SET_PRIVILEGED,
+ SYSCALL_FILTER_SET_PROCESS,
+ SYSCALL_FILTER_SET_RAW_IO,
+ SYSCALL_FILTER_SET_RESOURCES,
+ _SYSCALL_FILTER_SET_MAX
+};
+
+extern const SyscallFilterSet syscall_filter_sets[];
+
+const SyscallFilterSet *syscall_filter_set_find(const char *name);
+
+int seccomp_add_syscall_filter_set(scmp_filter_ctx seccomp, const SyscallFilterSet *set, uint32_t action);
+
+int seccomp_load_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action);
diff --git a/src/libsystemd-shared/include/systemd-shared/sleep-config.h b/src/libsystemd-shared/include/systemd-shared/sleep-config.h
new file mode 100644
index 0000000000..ad10039ff4
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/sleep-config.h
@@ -0,0 +1,26 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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/>.
+***/
+
+int parse_sleep_config(const char *verb, char ***modes, char ***states);
+
+int can_sleep(const char *verb);
+int can_sleep_disk(char **types);
+int can_sleep_state(char **types);
diff --git a/src/libsystemd-shared/include/systemd-shared/spawn-ask-password-agent.h b/src/libsystemd-shared/include/systemd-shared/spawn-ask-password-agent.h
new file mode 100644
index 0000000000..fb0749b13f
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/spawn-ask-password-agent.h
@@ -0,0 +1,23 @@
+#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/>.
+***/
+
+int ask_password_agent_open(void);
+void ask_password_agent_close(void);
diff --git a/src/libsystemd-shared/include/systemd-shared/spawn-polkit-agent.h b/src/libsystemd-shared/include/systemd-shared/spawn-polkit-agent.h
new file mode 100644
index 0000000000..42b2989ded
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/spawn-polkit-agent.h
@@ -0,0 +1,23 @@
+#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/>.
+***/
+
+int polkit_agent_open(void);
+void polkit_agent_close(void);
diff --git a/src/libsystemd-shared/include/systemd-shared/specifier.h b/src/libsystemd-shared/include/systemd-shared/specifier.h
new file mode 100644
index 0000000000..6b1623ee61
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/specifier.h
@@ -0,0 +1,37 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+typedef int (*SpecifierCallback)(char specifier, void *data, void *userdata, char **ret);
+
+typedef struct Specifier {
+ const char specifier;
+ const SpecifierCallback lookup;
+ void *data;
+} Specifier;
+
+int specifier_printf(const char *text, const Specifier table[], void *userdata, char **ret);
+
+int specifier_string(char specifier, void *data, void *userdata, char **ret);
+
+int specifier_machine_id(char specifier, void *data, void *userdata, char **ret);
+int specifier_boot_id(char specifier, void *data, void *userdata, char **ret);
+int specifier_host_name(char specifier, void *data, void *userdata, char **ret);
+int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret);
diff --git a/src/libsystemd-shared/include/systemd-shared/switch-root.h b/src/libsystemd-shared/include/systemd-shared/switch-root.h
new file mode 100644
index 0000000000..a7a080b3e8
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/switch-root.h
@@ -0,0 +1,23 @@
+#pragma once
+
+#include <stdbool.h>
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Harald Hoyer, 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/>.
+***/
+
+int switch_root(const char *new_root, const char *oldroot, bool detach_oldroot, unsigned long mountflags);
diff --git a/src/libsystemd-shared/include/systemd-shared/sysctl-util.h b/src/libsystemd-shared/include/systemd-shared/sysctl-util.h
new file mode 100644
index 0000000000..2decb39f58
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/sysctl-util.h
@@ -0,0 +1,25 @@
+#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/>.
+***/
+
+char *sysctl_normalize(char *s);
+int sysctl_read(const char *property, char **value);
+int sysctl_write(const char *property, const char *value);
+
diff --git a/src/libsystemd-shared/include/systemd-shared/test-tables.h b/src/libsystemd-shared/include/systemd-shared/test-tables.h
new file mode 100644
index 0000000000..228e510104
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/test-tables.h
@@ -0,0 +1,60 @@
+/***
+ This file is part of systemd
+
+ Copyright 2013 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 <stdlib.h>
+
+typedef const char* (*lookup_t)(int);
+typedef int (*reverse_t)(const char*);
+
+static inline void _test_table(const char *name,
+ lookup_t lookup,
+ reverse_t reverse,
+ int size,
+ bool sparse) {
+ int i, boring = 0;
+
+ for (i = -1; i < size + 1; i++) {
+ const char* val = lookup(i);
+ int rev;
+
+ if (val) {
+ rev = reverse(val);
+ boring = 0;
+ } else {
+ rev = reverse("--no-such--value----");
+ boring += i >= 0;
+ }
+
+ if (boring < 1 || i == size)
+ printf("%s: %d → %s → %d\n", name, i, val, rev);
+ else if (boring == 1)
+ printf("%*s ...\n", (int) strlen(name), "");
+
+ assert_se(!(i >= 0 && i < size ?
+ sparse ? rev != i && rev != -1 : val == NULL || rev != i :
+ val != NULL || rev != -1));
+ }
+}
+
+#define test_table(lower, upper) \
+ _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, false)
+
+#define test_table_sparse(lower, upper) \
+ _test_table(STRINGIFY(lower), lower##_to_string, lower##_from_string, _##upper##_MAX, true)
diff --git a/src/libsystemd-shared/include/systemd-shared/tests.h b/src/libsystemd-shared/include/systemd-shared/tests.h
new file mode 100644
index 0000000000..93f09013a1
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/tests.h
@@ -0,0 +1,22 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+char* setup_fake_runtime_dir(void);
diff --git a/src/libsystemd-shared/include/systemd-shared/udev-util.h b/src/libsystemd-shared/include/systemd-shared/udev-util.h
new file mode 100644
index 0000000000..a4cfbf5ba2
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/udev-util.h
@@ -0,0 +1,44 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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 "systemd-basic/util.h"
+#include "udev.h"
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev*, udev_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_device*, udev_device_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_enumerate*, udev_enumerate_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_event*, udev_event_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_rules*, udev_rules_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl*, udev_ctrl_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl_connection*, udev_ctrl_connection_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_ctrl_msg*, udev_ctrl_msg_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_monitor*, udev_monitor_unref);
+
+#define _cleanup_udev_unref_ _cleanup_(udev_unrefp)
+#define _cleanup_udev_device_unref_ _cleanup_(udev_device_unrefp)
+#define _cleanup_udev_enumerate_unref_ _cleanup_(udev_enumerate_unrefp)
+#define _cleanup_udev_event_unref_ _cleanup_(udev_event_unrefp)
+#define _cleanup_udev_rules_unref_ _cleanup_(udev_rules_unrefp)
+#define _cleanup_udev_ctrl_unref_ _cleanup_(udev_ctrl_unrefp)
+#define _cleanup_udev_ctrl_connection_unref_ _cleanup_(udev_ctrl_connection_unrefp)
+#define _cleanup_udev_ctrl_msg_unref_ _cleanup_(udev_ctrl_msg_unrefp)
+#define _cleanup_udev_monitor_unref_ _cleanup_(udev_monitor_unrefp)
+#define _cleanup_udev_list_cleanup_ _cleanup_(udev_list_cleanup)
diff --git a/src/libsystemd-shared/include/systemd-shared/uid-range.h b/src/libsystemd-shared/include/systemd-shared/uid-range.h
new file mode 100644
index 0000000000..4044eb4c9c
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/uid-range.h
@@ -0,0 +1,33 @@
+#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>
+#include <sys/types.h>
+
+typedef struct UidRange {
+ uid_t start, nr;
+} UidRange;
+
+int uid_range_add(UidRange **p, unsigned *n, uid_t start, uid_t nr);
+int uid_range_add_str(UidRange **p, unsigned *n, const char *s);
+
+int uid_range_next_lower(const UidRange *p, unsigned n, uid_t *uid);
+bool uid_range_contains(const UidRange *p, unsigned n, uid_t uid);
diff --git a/src/libsystemd-shared/include/systemd-shared/utmp-wtmp.h b/src/libsystemd-shared/include/systemd-shared/utmp-wtmp.h
new file mode 100644
index 0000000000..abc9e5dd10
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/utmp-wtmp.h
@@ -0,0 +1,74 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/util.h"
+
+#ifdef HAVE_UTMP
+int utmp_get_runlevel(int *runlevel, int *previous);
+
+int utmp_put_shutdown(void);
+int utmp_put_reboot(usec_t timestamp);
+int utmp_put_runlevel(int runlevel, int previous);
+
+int utmp_put_dead_process(const char *id, pid_t pid, int code, int status);
+int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user);
+
+int utmp_wall(
+ const char *message,
+ const char *username,
+ const char *origin_tty,
+ bool (*match_tty)(const char *tty, void *userdata),
+ void *userdata);
+
+#else /* HAVE_UTMP */
+
+static inline int utmp_get_runlevel(int *runlevel, int *previous) {
+ return -ESRCH;
+}
+static inline int utmp_put_shutdown(void) {
+ return 0;
+}
+static inline int utmp_put_reboot(usec_t timestamp) {
+ return 0;
+}
+static inline int utmp_put_runlevel(int runlevel, int previous) {
+ return 0;
+}
+static inline int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
+ return 0;
+}
+static inline int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) {
+ return 0;
+}
+static inline int utmp_wall(
+ const char *message,
+ const char *username,
+ const char *origin_tty,
+ bool (*match_tty)(const char *tty, void *userdata),
+ void *userdata) {
+ return 0;
+}
+
+#endif /* HAVE_UTMP */
diff --git a/src/libsystemd-shared/include/systemd-shared/vlan-util.h b/src/libsystemd-shared/include/systemd-shared/vlan-util.h
new file mode 100644
index 0000000000..b7c2f03383
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/vlan-util.h
@@ -0,0 +1,35 @@
+#pragma once
+
+/***
+ 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/>.
+***/
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+#define VLANID_MAX 4094
+#define VLANID_INVALID UINT16_MAX
+
+/* Note that we permit VLAN Id 0 here, as that is apparently OK by the Linux kernel */
+static inline bool vlanid_is_valid(uint16_t id) {
+ return id <= VLANID_MAX;
+}
+
+int parse_vlanid(const char *p, uint16_t *ret);
+
+int config_parse_vlanid(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
diff --git a/src/libsystemd-shared/include/systemd-shared/watchdog.h b/src/libsystemd-shared/include/systemd-shared/watchdog.h
new file mode 100644
index 0000000000..fd13cce283
--- /dev/null
+++ b/src/libsystemd-shared/include/systemd-shared/watchdog.h
@@ -0,0 +1,29 @@
+#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-basic/time-util.h"
+#include "systemd-basic/util.h"
+
+int watchdog_set_timeout(usec_t *usec);
+int watchdog_ping(void);
+void watchdog_close(bool disarm);
diff --git a/src/libsystemd-shared/src/GNUmakefile b/src/libsystemd-shared/src/GNUmakefile
new file mode 120000
index 0000000000..95e5924740
--- /dev/null
+++ b/src/libsystemd-shared/src/GNUmakefile
@@ -0,0 +1 @@
+../../../GNUmakefile \ No newline at end of file
diff --git a/src/libsystemd-shared/src/Makefile b/src/libsystemd-shared/src/Makefile
new file mode 100644
index 0000000000..601daf855c
--- /dev/null
+++ b/src/libsystemd-shared/src/Makefile
@@ -0,0 +1,182 @@
+# -*- 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
+
+noinst_LTLIBRARIES += \
+ libsystemd-shared.la
+
+libsystemd_shared_la_SOURCES = \
+ src/shared/output-mode.h \
+ src/shared/output-mode.c \
+ src/shared/gpt.h \
+ src/shared/udev-util.h \
+ src/shared/linux/auto_dev-ioctl.h \
+ src/shared/initreq.h \
+ src/shared/dns-domain.c \
+ src/shared/dns-domain.h \
+ src/shared/efivars.c \
+ src/shared/efivars.h \
+ src/shared/fstab-util.c \
+ src/shared/fstab-util.h \
+ src/shared/sleep-config.c \
+ src/shared/sleep-config.h \
+ src/shared/conf-parser.c \
+ src/shared/conf-parser.h \
+ src/shared/pager.c \
+ src/shared/pager.h \
+ src/shared/spawn-polkit-agent.c \
+ src/shared/spawn-polkit-agent.h \
+ src/shared/apparmor-util.c \
+ src/shared/apparmor-util.h \
+ src/shared/ima-util.c \
+ src/shared/ima-util.h \
+ src/shared/ptyfwd.c \
+ src/shared/ptyfwd.h \
+ src/shared/base-filesystem.c \
+ src/shared/base-filesystem.h \
+ src/shared/uid-range.c \
+ src/shared/uid-range.h \
+ src/shared/install.c \
+ src/shared/install.h \
+ src/shared/install-printf.c \
+ src/shared/install-printf.h \
+ src/shared/path-lookup.c \
+ src/shared/path-lookup.h \
+ src/shared/specifier.c \
+ src/shared/specifier.h \
+ src/shared/dev-setup.c \
+ src/shared/dev-setup.h \
+ src/shared/dropin.c \
+ src/shared/dropin.h \
+ src/shared/condition.c \
+ src/shared/condition.h \
+ src/shared/clean-ipc.c \
+ src/shared/clean-ipc.h \
+ src/shared/generator.h \
+ src/shared/generator.c \
+ src/shared/acpi-fpdt.h \
+ src/shared/acpi-fpdt.c \
+ src/shared/boot-timestamps.h \
+ src/shared/boot-timestamps.c \
+ src/shared/cgroup-show.c \
+ src/shared/cgroup-show.h \
+ src/shared/utmp-wtmp.h \
+ src/shared/watchdog.c \
+ src/shared/watchdog.h \
+ src/shared/spawn-ask-password-agent.c \
+ src/shared/spawn-ask-password-agent.h \
+ src/shared/ask-password-api.c \
+ src/shared/ask-password-api.h \
+ src/shared/switch-root.h \
+ src/shared/switch-root.c \
+ src/shared/import-util.c \
+ src/shared/import-util.h \
+ src/shared/sysctl-util.c \
+ src/shared/sysctl-util.h \
+ src/shared/bus-util.c \
+ src/shared/bus-util.h \
+ src/shared/logs-show.c \
+ src/shared/logs-show.h \
+ src/shared/machine-image.c \
+ src/shared/machine-image.h \
+ src/shared/machine-pool.c \
+ src/shared/machine-pool.h \
+ src/shared/resolve-util.c \
+ src/shared/resolve-util.h \
+ src/shared/bus-unit-util.c \
+ src/shared/bus-unit-util.h \
+ src/shared/vlan-util.h \
+ src/shared/vlan-util.c \
+ src/shared/tests.h \
+ src/shared/tests.c \
+ src/shared/fdset.c \
+ src/shared/fdset.h
+
+ifneq ($(HAVE_UTMP),)
+libsystemd_shared_la_SOURCES += \
+ src/shared/utmp-wtmp.c
+endif # HAVE_UTMP
+
+ifneq ($(HAVE_SECCOMP),)
+libsystemd_shared_la_SOURCES += \
+ src/shared/seccomp-util.h \
+ src/shared/seccomp-util.c
+endif # HAVE_SECCOMP
+
+ifneq ($(HAVE_ACL),)
+libsystemd_shared_la_SOURCES += \
+ src/shared/acl-util.c \
+ src/shared/acl-util.h
+endif # HAVE_ACL
+
+libsystemd_shared_la_CFLAGS = \
+ $(ACL_CFLAGS) \
+ $(LIBIDN_CFLAGS) \
+ $(SECCOMP_CFLAGS)
+
+libsystemd_shared_la_LIBADD = \
+ libsystemd-internal.la \
+ libsystemd-basic.la \
+ libsystemd-journal-internal.la \
+ libudev-internal.la \
+ $(ACL_LIBS) \
+ $(LIBIDN_LIBS) \
+ $(SECCOMP_LIBS)
+
+rootlibexec_LTLIBRARIES += \
+ libsystemd-shared.la
+
+libsystemd_shared_la_SOURCES = \
+ $(libsystemd_basic_la_SOURCES) \
+ $(libsystemd_shared_la_SOURCES) \
+ $(libsystemd_internal_la_SOURCES) \
+ $(libsystemd_journal_internal_la_SOURCES) \
+ $(libudev_internal_la_SOURCES)
+
+libsystemd_shared_la_CFLAGS = \
+ $(libsystemd_basic_la_CFLAGS) \
+ $(libsystemd_shared_la_CFLAGS) \
+ $(libsystemd_internal_la_CFLAGS) \
+ $(libsystemd_journal_internal_la_CFLAGS) \
+ $(libudev_internal_la_CFLAGS) \
+ $(ACL_CFLAGS) \
+ $(LIBIDN_CFLAGS) \
+ $(SECCOMP_CFLAGS) \
+ -fvisibility=default
+
+# We can't use libsystemd_shared_la_LIBADD here because it would
+# pull in libsystemd*-internal.la
+libsystemd_shared_la_LIBADD = \
+ libsystemd-basic.la \
+ libsystemd_internal.la \
+ libsystemd_journal_internal.la \
+ libudev_internal.la \
+ $(ACL_LIBS) \
+ $(LIBIDN_LIBS) \
+ $(SECCOMP_LIBS)
+
+libsystemd_shared_la_LDFLAGS = \
+ -release $(PACKAGE_VERSION)
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/libsystemd-shared/src/acl-util.c b/src/libsystemd-shared/src/acl-util.c
new file mode 100644
index 0000000000..97081c125a
--- /dev/null
+++ b/src/libsystemd-shared/src/acl-util.c
@@ -0,0 +1,429 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2011,2013 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 <errno.h>
+#include <stdbool.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/acl-util.h"
+
+int acl_find_uid(acl_t acl, uid_t uid, acl_entry_t *entry) {
+ acl_entry_t i;
+ int r;
+
+ assert(acl);
+ assert(entry);
+
+ for (r = acl_get_entry(acl, ACL_FIRST_ENTRY, &i);
+ r > 0;
+ r = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) {
+
+ acl_tag_t tag;
+ uid_t *u;
+ bool b;
+
+ if (acl_get_tag_type(i, &tag) < 0)
+ return -errno;
+
+ if (tag != ACL_USER)
+ continue;
+
+ u = acl_get_qualifier(i);
+ if (!u)
+ return -errno;
+
+ b = *u == uid;
+ acl_free(u);
+
+ if (b) {
+ *entry = i;
+ return 1;
+ }
+ }
+ if (r < 0)
+ return -errno;
+
+ return 0;
+}
+
+int calc_acl_mask_if_needed(acl_t *acl_p) {
+ acl_entry_t i;
+ int r;
+ bool need = false;
+
+ assert(acl_p);
+
+ for (r = acl_get_entry(*acl_p, ACL_FIRST_ENTRY, &i);
+ r > 0;
+ r = acl_get_entry(*acl_p, ACL_NEXT_ENTRY, &i)) {
+ acl_tag_t tag;
+
+ if (acl_get_tag_type(i, &tag) < 0)
+ return -errno;
+
+ if (tag == ACL_MASK)
+ return 0;
+
+ if (IN_SET(tag, ACL_USER, ACL_GROUP))
+ need = true;
+ }
+ if (r < 0)
+ return -errno;
+
+ if (need && acl_calc_mask(acl_p) < 0)
+ return -errno;
+
+ return need;
+}
+
+int add_base_acls_if_needed(acl_t *acl_p, const char *path) {
+ acl_entry_t i;
+ int r;
+ bool have_user_obj = false, have_group_obj = false, have_other = false;
+ struct stat st;
+ _cleanup_(acl_freep) acl_t basic = NULL;
+
+ assert(acl_p);
+
+ for (r = acl_get_entry(*acl_p, ACL_FIRST_ENTRY, &i);
+ r > 0;
+ r = acl_get_entry(*acl_p, ACL_NEXT_ENTRY, &i)) {
+ acl_tag_t tag;
+
+ if (acl_get_tag_type(i, &tag) < 0)
+ return -errno;
+
+ if (tag == ACL_USER_OBJ)
+ have_user_obj = true;
+ else if (tag == ACL_GROUP_OBJ)
+ have_group_obj = true;
+ else if (tag == ACL_OTHER)
+ have_other = true;
+ if (have_user_obj && have_group_obj && have_other)
+ return 0;
+ }
+ if (r < 0)
+ return -errno;
+
+ r = stat(path, &st);
+ if (r < 0)
+ return -errno;
+
+ basic = acl_from_mode(st.st_mode);
+ if (!basic)
+ return -errno;
+
+ for (r = acl_get_entry(basic, ACL_FIRST_ENTRY, &i);
+ r > 0;
+ r = acl_get_entry(basic, ACL_NEXT_ENTRY, &i)) {
+ acl_tag_t tag;
+ acl_entry_t dst;
+
+ if (acl_get_tag_type(i, &tag) < 0)
+ return -errno;
+
+ if ((tag == ACL_USER_OBJ && have_user_obj) ||
+ (tag == ACL_GROUP_OBJ && have_group_obj) ||
+ (tag == ACL_OTHER && have_other))
+ continue;
+
+ r = acl_create_entry(acl_p, &dst);
+ if (r < 0)
+ return -errno;
+
+ r = acl_copy_entry(dst, i);
+ if (r < 0)
+ return -errno;
+ }
+ if (r < 0)
+ return -errno;
+ return 0;
+}
+
+int acl_search_groups(const char *path, char ***ret_groups) {
+ _cleanup_strv_free_ char **g = NULL;
+ _cleanup_(acl_free) acl_t acl = NULL;
+ bool ret = false;
+ acl_entry_t entry;
+ int r;
+
+ assert(path);
+
+ acl = acl_get_file(path, ACL_TYPE_DEFAULT);
+ if (!acl)
+ return -errno;
+
+ r = acl_get_entry(acl, ACL_FIRST_ENTRY, &entry);
+ for (;;) {
+ _cleanup_(acl_free_gid_tpp) gid_t *gid = NULL;
+ acl_tag_t tag;
+
+ if (r < 0)
+ return -errno;
+ if (r == 0)
+ break;
+
+ if (acl_get_tag_type(entry, &tag) < 0)
+ return -errno;
+
+ if (tag != ACL_GROUP)
+ goto next;
+
+ gid = acl_get_qualifier(entry);
+ if (!gid)
+ return -errno;
+
+ if (in_gid(*gid) > 0) {
+ if (!ret_groups)
+ return true;
+
+ ret = true;
+ }
+
+ if (ret_groups) {
+ char *name;
+
+ name = gid_to_name(*gid);
+ if (!name)
+ return -ENOMEM;
+
+ r = strv_consume(&g, name);
+ if (r < 0)
+ return r;
+ }
+
+ next:
+ r = acl_get_entry(acl, ACL_NEXT_ENTRY, &entry);
+ }
+
+ if (ret_groups) {
+ *ret_groups = g;
+ g = NULL;
+ }
+
+ return ret;
+}
+
+int parse_acl(const char *text, acl_t *acl_access, acl_t *acl_default, bool want_mask) {
+ _cleanup_free_ char **a = NULL, **d = NULL; /* strings are not be freed */
+ _cleanup_strv_free_ char **split;
+ char **entry;
+ int r = -EINVAL;
+ _cleanup_(acl_freep) acl_t a_acl = NULL, d_acl = NULL;
+
+ split = strv_split(text, ",");
+ if (!split)
+ return -ENOMEM;
+
+ STRV_FOREACH(entry, split) {
+ char *p;
+
+ p = startswith(*entry, "default:");
+ if (!p)
+ p = startswith(*entry, "d:");
+
+ if (p)
+ r = strv_push(&d, p);
+ else
+ r = strv_push(&a, *entry);
+ if (r < 0)
+ return r;
+ }
+
+ if (!strv_isempty(a)) {
+ _cleanup_free_ char *join;
+
+ join = strv_join(a, ",");
+ if (!join)
+ return -ENOMEM;
+
+ a_acl = acl_from_text(join);
+ if (!a_acl)
+ return -errno;
+
+ if (want_mask) {
+ r = calc_acl_mask_if_needed(&a_acl);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ if (!strv_isempty(d)) {
+ _cleanup_free_ char *join;
+
+ join = strv_join(d, ",");
+ if (!join)
+ return -ENOMEM;
+
+ d_acl = acl_from_text(join);
+ if (!d_acl)
+ return -errno;
+
+ if (want_mask) {
+ r = calc_acl_mask_if_needed(&d_acl);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ *acl_access = a_acl;
+ *acl_default = d_acl;
+ a_acl = d_acl = NULL;
+
+ return 0;
+}
+
+static int acl_entry_equal(acl_entry_t a, acl_entry_t b) {
+ acl_tag_t tag_a, tag_b;
+
+ if (acl_get_tag_type(a, &tag_a) < 0)
+ return -errno;
+
+ if (acl_get_tag_type(b, &tag_b) < 0)
+ return -errno;
+
+ if (tag_a != tag_b)
+ return false;
+
+ switch (tag_a) {
+ case ACL_USER_OBJ:
+ case ACL_GROUP_OBJ:
+ case ACL_MASK:
+ case ACL_OTHER:
+ /* can have only one of those */
+ return true;
+ case ACL_USER: {
+ _cleanup_(acl_free_uid_tpp) uid_t *uid_a = NULL, *uid_b = NULL;
+
+ uid_a = acl_get_qualifier(a);
+ if (!uid_a)
+ return -errno;
+
+ uid_b = acl_get_qualifier(b);
+ if (!uid_b)
+ return -errno;
+
+ return *uid_a == *uid_b;
+ }
+ case ACL_GROUP: {
+ _cleanup_(acl_free_gid_tpp) gid_t *gid_a = NULL, *gid_b = NULL;
+
+ gid_a = acl_get_qualifier(a);
+ if (!gid_a)
+ return -errno;
+
+ gid_b = acl_get_qualifier(b);
+ if (!gid_b)
+ return -errno;
+
+ return *gid_a == *gid_b;
+ }
+ default:
+ assert_not_reached("Unknown acl tag type");
+ }
+}
+
+static int find_acl_entry(acl_t acl, acl_entry_t entry, acl_entry_t *out) {
+ acl_entry_t i;
+ int r;
+
+ for (r = acl_get_entry(acl, ACL_FIRST_ENTRY, &i);
+ r > 0;
+ r = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) {
+
+ r = acl_entry_equal(i, entry);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ *out = i;
+ return 1;
+ }
+ }
+ if (r < 0)
+ return -errno;
+ return 0;
+}
+
+int acls_for_file(const char *path, acl_type_t type, acl_t new, acl_t *acl) {
+ _cleanup_(acl_freep) acl_t old;
+ acl_entry_t i;
+ int r;
+
+ old = acl_get_file(path, type);
+ if (!old)
+ return -errno;
+
+ for (r = acl_get_entry(new, ACL_FIRST_ENTRY, &i);
+ r > 0;
+ r = acl_get_entry(new, ACL_NEXT_ENTRY, &i)) {
+
+ acl_entry_t j;
+
+ r = find_acl_entry(old, i, &j);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ if (acl_create_entry(&old, &j) < 0)
+ return -errno;
+
+ if (acl_copy_entry(j, i) < 0)
+ return -errno;
+ }
+ if (r < 0)
+ return -errno;
+
+ *acl = old;
+ old = NULL;
+ return 0;
+}
+
+int add_acls_for_user(int fd, uid_t uid) {
+ _cleanup_(acl_freep) acl_t acl = NULL;
+ acl_entry_t entry;
+ acl_permset_t permset;
+ int r;
+
+ acl = acl_get_fd(fd);
+ if (!acl)
+ return -errno;
+
+ r = acl_find_uid(acl, uid, &entry);
+ if (r <= 0) {
+ if (acl_create_entry(&acl, &entry) < 0 ||
+ acl_set_tag_type(entry, ACL_USER) < 0 ||
+ acl_set_qualifier(entry, &uid) < 0)
+ return -errno;
+ }
+
+ /* We do not recalculate the mask unconditionally here,
+ * so that the fchmod() mask above stays intact. */
+ if (acl_get_permset(entry, &permset) < 0 ||
+ acl_add_perm(permset, ACL_READ) < 0)
+ return -errno;
+
+ r = calc_acl_mask_if_needed(&acl);
+ if (r < 0)
+ return r;
+
+ return acl_set_fd(fd, acl);
+}
diff --git a/src/libsystemd-shared/src/acpi-fpdt.c b/src/libsystemd-shared/src/acpi-fpdt.c
new file mode 100644
index 0000000000..e71c05d488
--- /dev/null
+++ b/src/libsystemd-shared/src/acpi-fpdt.c
@@ -0,0 +1,164 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Kay Sievers
+
+ 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 <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-shared/acpi-fpdt.h"
+
+struct acpi_table_header {
+ char signature[4];
+ uint32_t length;
+ uint8_t revision;
+ uint8_t checksum;
+ char oem_id[6];
+ char oem_table_id[8];
+ uint32_t oem_revision;
+ char asl_compiler_id[4];
+ uint32_t asl_compiler_revision;
+};
+
+enum {
+ ACPI_FPDT_TYPE_BOOT = 0,
+ ACPI_FPDT_TYPE_S3PERF = 1,
+};
+
+struct acpi_fpdt_header {
+ uint16_t type;
+ uint8_t length;
+ uint8_t revision;
+ uint8_t reserved[4];
+ uint64_t ptr;
+};
+
+struct acpi_fpdt_boot_header {
+ char signature[4];
+ uint32_t length;
+};
+
+enum {
+ ACPI_FPDT_S3PERF_RESUME_REC = 0,
+ ACPI_FPDT_S3PERF_SUSPEND_REC = 1,
+ ACPI_FPDT_BOOT_REC = 2,
+};
+
+struct acpi_fpdt_boot {
+ uint16_t type;
+ uint8_t length;
+ uint8_t revision;
+ uint8_t reserved[4];
+ uint64_t reset_end;
+ uint64_t load_start;
+ uint64_t startup_start;
+ uint64_t exit_services_entry;
+ uint64_t exit_services_exit;
+};
+
+int acpi_get_boot_usec(usec_t *loader_start, usec_t *loader_exit) {
+ _cleanup_free_ char *buf = NULL;
+ struct acpi_table_header *tbl;
+ size_t l = 0;
+ struct acpi_fpdt_header *rec;
+ int r;
+ uint64_t ptr = 0;
+ _cleanup_close_ int fd = -1;
+ struct acpi_fpdt_boot_header hbrec;
+ struct acpi_fpdt_boot brec;
+
+ r = read_full_file("/sys/firmware/acpi/tables/FPDT", &buf, &l);
+ if (r < 0)
+ return r;
+
+ if (l < sizeof(struct acpi_table_header) + sizeof(struct acpi_fpdt_header))
+ return -EINVAL;
+
+ tbl = (struct acpi_table_header *)buf;
+ if (l != tbl->length)
+ return -EINVAL;
+
+ if (memcmp(tbl->signature, "FPDT", 4) != 0)
+ return -EINVAL;
+
+ /* find Firmware Basic Boot Performance Pointer Record */
+ for (rec = (struct acpi_fpdt_header *)(buf + sizeof(struct acpi_table_header));
+ (char *)rec < buf + l;
+ rec = (struct acpi_fpdt_header *)((char *)rec + rec->length)) {
+ if (rec->length <= 0)
+ break;
+ if (rec->type != ACPI_FPDT_TYPE_BOOT)
+ continue;
+ if (rec->length != sizeof(struct acpi_fpdt_header))
+ continue;
+
+ ptr = rec->ptr;
+ break;
+ }
+
+ if (ptr == 0)
+ return -ENODATA;
+
+ /* read Firmware Basic Boot Performance Data Record */
+ fd = open("/dev/mem", O_CLOEXEC|O_RDONLY);
+ if (fd < 0)
+ return -errno;
+
+ l = pread(fd, &hbrec, sizeof(struct acpi_fpdt_boot_header), ptr);
+ if (l != sizeof(struct acpi_fpdt_boot_header))
+ return -EINVAL;
+
+ if (memcmp(hbrec.signature, "FBPT", 4) != 0)
+ return -EINVAL;
+
+ if (hbrec.length < sizeof(struct acpi_fpdt_boot_header) + sizeof(struct acpi_fpdt_boot))
+ return -EINVAL;
+
+ l = pread(fd, &brec, sizeof(struct acpi_fpdt_boot), ptr + sizeof(struct acpi_fpdt_boot_header));
+ if (l != sizeof(struct acpi_fpdt_boot))
+ return -EINVAL;
+
+ if (brec.length != sizeof(struct acpi_fpdt_boot))
+ return -EINVAL;
+
+ if (brec.type != ACPI_FPDT_BOOT_REC)
+ return -EINVAL;
+
+ if (brec.exit_services_exit == 0)
+ /* Non-UEFI compatible boot. */
+ return -ENODATA;
+
+ if (brec.startup_start == 0 || brec.exit_services_exit < brec.startup_start)
+ return -EINVAL;
+ if (brec.exit_services_exit > NSEC_PER_HOUR)
+ return -EINVAL;
+
+ if (loader_start)
+ *loader_start = brec.startup_start / 1000;
+ if (loader_exit)
+ *loader_exit = brec.exit_services_exit / 1000;
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/apparmor-util.c b/src/libsystemd-shared/src/apparmor-util.c
new file mode 100644
index 0000000000..b43b31095e
--- /dev/null
+++ b/src/libsystemd-shared/src/apparmor-util.c
@@ -0,0 +1,39 @@
+/***
+ 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 <stddef.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-shared/apparmor-util.h"
+
+bool mac_apparmor_use(void) {
+ static int cached_use = -1;
+
+ if (cached_use < 0) {
+ _cleanup_free_ char *p = NULL;
+
+ cached_use =
+ read_one_line_file("/sys/module/apparmor/parameters/enabled", &p) >= 0 &&
+ parse_boolean(p) > 0;
+ }
+
+ return cached_use;
+}
diff --git a/src/libsystemd-shared/src/ask-password-api.c b/src/libsystemd-shared/src/ask-password-api.c
new file mode 100644
index 0000000000..b7f020b298
--- /dev/null
+++ b/src/libsystemd-shared/src/ask-password-api.c
@@ -0,0 +1,734 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/inotify.h>
+#include <sys/signalfd.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/un.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/formats-util.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/missing.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/random-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/socket-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/umask-util.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/ask-password-api.h"
+
+#define KEYRING_TIMEOUT_USEC ((5 * USEC_PER_MINUTE) / 2)
+
+static int lookup_key(const char *keyname, key_serial_t *ret) {
+ key_serial_t serial;
+
+ assert(keyname);
+ assert(ret);
+
+ serial = request_key("user", keyname, NULL, 0);
+ if (serial == -1)
+ return negative_errno();
+
+ *ret = serial;
+ return 0;
+}
+
+static int retrieve_key(key_serial_t serial, char ***ret) {
+ _cleanup_free_ char *p = NULL;
+ long m = 100, n;
+ char **l;
+
+ assert(ret);
+
+ for (;;) {
+ p = new(char, m);
+ if (!p)
+ return -ENOMEM;
+
+ n = keyctl(KEYCTL_READ, (unsigned long) serial, (unsigned long) p, (unsigned long) m, 0);
+ if (n < 0)
+ return -errno;
+
+ if (n < m)
+ break;
+
+ memory_erase(p, n);
+ free(p);
+ m *= 2;
+ }
+
+ l = strv_parse_nulstr(p, n);
+ if (!l)
+ return -ENOMEM;
+
+ memory_erase(p, n);
+
+ *ret = l;
+ return 0;
+}
+
+static int add_to_keyring(const char *keyname, AskPasswordFlags flags, char **passwords) {
+ _cleanup_strv_free_erase_ char **l = NULL;
+ _cleanup_free_ char *p = NULL;
+ key_serial_t serial;
+ size_t n;
+ int r;
+
+ assert(keyname);
+ assert(passwords);
+
+ if (!(flags & ASK_PASSWORD_PUSH_CACHE))
+ return 0;
+
+ r = lookup_key(keyname, &serial);
+ if (r >= 0) {
+ r = retrieve_key(serial, &l);
+ if (r < 0)
+ return r;
+ } else if (r != -ENOKEY)
+ return r;
+
+ r = strv_extend_strv(&l, passwords, true);
+ if (r <= 0)
+ return r;
+
+ r = strv_make_nulstr(l, &p, &n);
+ if (r < 0)
+ return r;
+
+ serial = add_key("user", keyname, p, n, KEY_SPEC_USER_KEYRING);
+ memory_erase(p, n);
+ if (serial == -1)
+ return -errno;
+
+ if (keyctl(KEYCTL_SET_TIMEOUT,
+ (unsigned long) serial,
+ (unsigned long) DIV_ROUND_UP(KEYRING_TIMEOUT_USEC, USEC_PER_SEC), 0, 0) < 0)
+ log_debug_errno(errno, "Failed to adjust timeout: %m");
+
+ log_debug("Added key to keyring as %" PRIi32 ".", serial);
+
+ return 1;
+}
+
+static int add_to_keyring_and_log(const char *keyname, AskPasswordFlags flags, char **passwords) {
+ int r;
+
+ assert(keyname);
+ assert(passwords);
+
+ r = add_to_keyring(keyname, flags, passwords);
+ if (r < 0)
+ return log_debug_errno(r, "Failed to add password to keyring: %m");
+
+ return 0;
+}
+
+int ask_password_keyring(const char *keyname, AskPasswordFlags flags, char ***ret) {
+
+ key_serial_t serial;
+ int r;
+
+ assert(keyname);
+ assert(ret);
+
+ if (!(flags & ASK_PASSWORD_ACCEPT_CACHED))
+ return -EUNATCH;
+
+ r = lookup_key(keyname, &serial);
+ if (r == -ENOSYS) /* when retrieving the distinction doesn't matter */
+ return -ENOKEY;
+ if (r < 0)
+ return r;
+
+ return retrieve_key(serial, ret);
+}
+
+static void backspace_chars(int ttyfd, size_t p) {
+
+ if (ttyfd < 0)
+ return;
+
+ while (p > 0) {
+ p--;
+
+ loop_write(ttyfd, "\b \b", 3, false);
+ }
+}
+
+int ask_password_tty(
+ const char *message,
+ const char *keyname,
+ usec_t until,
+ AskPasswordFlags flags,
+ const char *flag_file,
+ char **ret) {
+
+ struct termios old_termios, new_termios;
+ char passphrase[LINE_MAX + 1] = {}, *x;
+ size_t p = 0, codepoint = 0;
+ int r;
+ _cleanup_close_ int ttyfd = -1, notify = -1;
+ struct pollfd pollfd[2];
+ bool reset_tty = false;
+ bool dirty = false;
+ enum {
+ POLL_TTY,
+ POLL_INOTIFY
+ };
+
+ assert(ret);
+
+ if (flags & ASK_PASSWORD_NO_TTY)
+ return -EUNATCH;
+
+ if (!message)
+ message = "Password:";
+
+ if (flag_file) {
+ notify = inotify_init1(IN_CLOEXEC|IN_NONBLOCK);
+ if (notify < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (inotify_add_watch(notify, flag_file, IN_ATTRIB /* for the link count */) < 0) {
+ r = -errno;
+ goto finish;
+ }
+ }
+
+ ttyfd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (ttyfd >= 0) {
+
+ if (tcgetattr(ttyfd, &old_termios) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if (colors_enabled())
+ loop_write(ttyfd, ANSI_HIGHLIGHT, strlen(ANSI_HIGHLIGHT), false);
+ loop_write(ttyfd, message, strlen(message), false);
+ loop_write(ttyfd, " ", 1, false);
+ if (colors_enabled())
+ loop_write(ttyfd, ANSI_NORMAL, strlen(ANSI_NORMAL), false);
+
+ new_termios = old_termios;
+ new_termios.c_lflag &= ~(ICANON|ECHO);
+ new_termios.c_cc[VMIN] = 1;
+ new_termios.c_cc[VTIME] = 0;
+
+ if (tcsetattr(ttyfd, TCSADRAIN, &new_termios) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ reset_tty = true;
+ }
+
+ zero(pollfd);
+ pollfd[POLL_TTY].fd = ttyfd >= 0 ? ttyfd : STDIN_FILENO;
+ pollfd[POLL_TTY].events = POLLIN;
+ pollfd[POLL_INOTIFY].fd = notify;
+ pollfd[POLL_INOTIFY].events = POLLIN;
+
+ for (;;) {
+ char c;
+ int sleep_for = -1, k;
+ ssize_t n;
+
+ if (until > 0) {
+ usec_t y;
+
+ y = now(CLOCK_MONOTONIC);
+
+ if (y > until) {
+ r = -ETIME;
+ goto finish;
+ }
+
+ sleep_for = (int) ((until - y) / USEC_PER_MSEC);
+ }
+
+ if (flag_file)
+ if (access(flag_file, F_OK) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ k = poll(pollfd, notify >= 0 ? 2 : 1, sleep_for);
+ if (k < 0) {
+ if (errno == EINTR)
+ continue;
+
+ r = -errno;
+ goto finish;
+ } else if (k == 0) {
+ r = -ETIME;
+ goto finish;
+ }
+
+ if (notify >= 0 && pollfd[POLL_INOTIFY].revents != 0)
+ flush_fd(notify);
+
+ if (pollfd[POLL_TTY].revents == 0)
+ continue;
+
+ n = read(ttyfd >= 0 ? ttyfd : STDIN_FILENO, &c, 1);
+ if (n < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+
+ r = -errno;
+ goto finish;
+
+ } else if (n == 0)
+ break;
+
+ if (c == '\n')
+ break;
+ else if (c == 21) { /* C-u */
+
+ if (!(flags & ASK_PASSWORD_SILENT))
+ backspace_chars(ttyfd, p);
+ p = 0;
+
+ } else if (c == '\b' || c == 127) {
+
+ if (p > 0) {
+
+ if (!(flags & ASK_PASSWORD_SILENT))
+ backspace_chars(ttyfd, 1);
+
+ p--;
+ } else if (!dirty && !(flags & ASK_PASSWORD_SILENT)) {
+
+ flags |= ASK_PASSWORD_SILENT;
+
+ /* There are two ways to enter silent
+ * mode. Either by pressing backspace
+ * as first key (and only as first
+ * key), or ... */
+ if (ttyfd >= 0)
+ loop_write(ttyfd, "(no echo) ", 10, false);
+
+ } else if (ttyfd >= 0)
+ loop_write(ttyfd, "\a", 1, false);
+
+ } else if (c == '\t' && !(flags & ASK_PASSWORD_SILENT)) {
+
+ backspace_chars(ttyfd, p);
+ flags |= ASK_PASSWORD_SILENT;
+
+ /* ... or by pressing TAB at any time. */
+
+ if (ttyfd >= 0)
+ loop_write(ttyfd, "(no echo) ", 10, false);
+ } else {
+ if (p >= sizeof(passphrase)-1) {
+ loop_write(ttyfd, "\a", 1, false);
+ continue;
+ }
+
+ passphrase[p++] = c;
+
+ if (!(flags & ASK_PASSWORD_SILENT) && ttyfd >= 0) {
+ n = utf8_encoded_valid_unichar(passphrase + codepoint);
+ if (n >= 0) {
+ codepoint = p;
+ loop_write(ttyfd, (flags & ASK_PASSWORD_ECHO) ? &c : "*", 1, false);
+ }
+ }
+
+ dirty = true;
+ }
+
+ c = 'x';
+ }
+
+ x = strndup(passphrase, p);
+ memory_erase(passphrase, p);
+ if (!x) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (keyname)
+ (void) add_to_keyring_and_log(keyname, flags, STRV_MAKE(x));
+
+ *ret = x;
+ r = 0;
+
+finish:
+ if (ttyfd >= 0 && reset_tty) {
+ loop_write(ttyfd, "\n", 1, false);
+ tcsetattr(ttyfd, TCSADRAIN, &old_termios);
+ }
+
+ return r;
+}
+
+static int create_socket(char **name) {
+ union sockaddr_union sa = {
+ .un.sun_family = AF_UNIX,
+ };
+ _cleanup_close_ int fd = -1;
+ static const int one = 1;
+ char *c;
+ int r;
+
+ assert(name);
+
+ fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
+ if (fd < 0)
+ return -errno;
+
+ snprintf(sa.un.sun_path, sizeof(sa.un.sun_path)-1, "/run/systemd/ask-password/sck.%" PRIx64, random_u64());
+
+ RUN_WITH_UMASK(0177) {
+ if (bind(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
+ return -errno;
+ }
+
+ if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0)
+ return -errno;
+
+ c = strdup(sa.un.sun_path);
+ if (!c)
+ return -ENOMEM;
+
+ *name = c;
+
+ r = fd;
+ fd = -1;
+
+ return r;
+}
+
+int ask_password_agent(
+ const char *message,
+ const char *icon,
+ const char *id,
+ const char *keyname,
+ usec_t until,
+ AskPasswordFlags flags,
+ char ***ret) {
+
+ enum {
+ FD_SOCKET,
+ FD_SIGNAL,
+ _FD_MAX
+ };
+
+ _cleanup_close_ int socket_fd = -1, signal_fd = -1, fd = -1;
+ char temp[] = "/run/systemd/ask-password/tmp.XXXXXX";
+ char final[sizeof(temp)] = "";
+ _cleanup_free_ char *socket_name = NULL;
+ _cleanup_strv_free_ char **l = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ struct pollfd pollfd[_FD_MAX];
+ sigset_t mask, oldmask;
+ int r;
+
+ assert(ret);
+
+ if (flags & ASK_PASSWORD_NO_AGENT)
+ return -EUNATCH;
+
+ assert_se(sigemptyset(&mask) >= 0);
+ assert_se(sigset_add_many(&mask, SIGINT, SIGTERM, -1) >= 0);
+ assert_se(sigprocmask(SIG_BLOCK, &mask, &oldmask) >= 0);
+
+ (void) mkdir_p_label("/run/systemd/ask-password", 0755);
+
+ fd = mkostemp_safe(temp);
+ if (fd < 0) {
+ r = fd;
+ goto finish;
+ }
+
+ (void) fchmod(fd, 0644);
+
+ f = fdopen(fd, "w");
+ if (!f) {
+ r = -errno;
+ goto finish;
+ }
+
+ fd = -1;
+
+ signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
+ if (signal_fd < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ socket_fd = create_socket(&socket_name);
+ if (socket_fd < 0) {
+ r = socket_fd;
+ goto finish;
+ }
+
+ fprintf(f,
+ "[Ask]\n"
+ "PID="PID_FMT"\n"
+ "Socket=%s\n"
+ "AcceptCached=%i\n"
+ "Echo=%i\n"
+ "NotAfter="USEC_FMT"\n",
+ getpid(),
+ socket_name,
+ (flags & ASK_PASSWORD_ACCEPT_CACHED) ? 1 : 0,
+ (flags & ASK_PASSWORD_ECHO) ? 1 : 0,
+ until);
+
+ if (message)
+ fprintf(f, "Message=%s\n", message);
+
+ if (icon)
+ fprintf(f, "Icon=%s\n", icon);
+
+ if (id)
+ fprintf(f, "Id=%s\n", id);
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ goto finish;
+
+ memcpy(final, temp, sizeof(temp));
+
+ final[sizeof(final)-11] = 'a';
+ final[sizeof(final)-10] = 's';
+ final[sizeof(final)-9] = 'k';
+
+ if (rename(temp, final) < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ zero(pollfd);
+ pollfd[FD_SOCKET].fd = socket_fd;
+ pollfd[FD_SOCKET].events = POLLIN;
+ pollfd[FD_SIGNAL].fd = signal_fd;
+ pollfd[FD_SIGNAL].events = POLLIN;
+
+ for (;;) {
+ char passphrase[LINE_MAX+1];
+ struct msghdr msghdr;
+ struct iovec iovec;
+ struct ucred *ucred;
+ union {
+ struct cmsghdr cmsghdr;
+ uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+ } control;
+ ssize_t n;
+ int k;
+ usec_t t;
+
+ t = now(CLOCK_MONOTONIC);
+
+ if (until > 0 && until <= t) {
+ r = -ETIME;
+ goto finish;
+ }
+
+ k = poll(pollfd, _FD_MAX, until > 0 ? (int) ((until-t)/USEC_PER_MSEC) : -1);
+ if (k < 0) {
+ if (errno == EINTR)
+ continue;
+
+ r = -errno;
+ goto finish;
+ }
+
+ if (k <= 0) {
+ r = -ETIME;
+ goto finish;
+ }
+
+ if (pollfd[FD_SIGNAL].revents & POLLIN) {
+ r = -EINTR;
+ goto finish;
+ }
+
+ if (pollfd[FD_SOCKET].revents != POLLIN) {
+ r = -EIO;
+ goto finish;
+ }
+
+ zero(iovec);
+ iovec.iov_base = passphrase;
+ iovec.iov_len = sizeof(passphrase);
+
+ zero(control);
+ zero(msghdr);
+ msghdr.msg_iov = &iovec;
+ msghdr.msg_iovlen = 1;
+ msghdr.msg_control = &control;
+ msghdr.msg_controllen = sizeof(control);
+
+ n = recvmsg(socket_fd, &msghdr, 0);
+ if (n < 0) {
+ if (errno == EAGAIN ||
+ errno == EINTR)
+ continue;
+
+ r = -errno;
+ goto finish;
+ }
+
+ cmsg_close_all(&msghdr);
+
+ if (n <= 0) {
+ log_debug("Message too short");
+ continue;
+ }
+
+ if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
+ control.cmsghdr.cmsg_level != SOL_SOCKET ||
+ control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
+ control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
+ log_debug("Received message without credentials. Ignoring.");
+ continue;
+ }
+
+ ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
+ if (ucred->uid != 0) {
+ log_debug("Got request from unprivileged user. Ignoring.");
+ continue;
+ }
+
+ if (passphrase[0] == '+') {
+ /* An empty message refers to the empty password */
+ if (n == 1)
+ l = strv_new("", NULL);
+ else
+ l = strv_parse_nulstr(passphrase+1, n-1);
+ memory_erase(passphrase, n);
+ if (!l) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (strv_length(l) <= 0) {
+ l = strv_free(l);
+ log_debug("Invalid packet");
+ continue;
+ }
+
+ break;
+ }
+
+ if (passphrase[0] == '-') {
+ r = -ECANCELED;
+ goto finish;
+ }
+
+ log_debug("Invalid packet");
+ }
+
+ if (keyname)
+ (void) add_to_keyring_and_log(keyname, flags, l);
+
+ *ret = l;
+ l = NULL;
+ r = 0;
+
+finish:
+ if (socket_name)
+ (void) unlink(socket_name);
+
+ (void) unlink(temp);
+
+ if (final[0])
+ (void) unlink(final);
+
+ assert_se(sigprocmask(SIG_SETMASK, &oldmask, NULL) == 0);
+ return r;
+}
+
+int ask_password_auto(
+ const char *message,
+ const char *icon,
+ const char *id,
+ const char *keyname,
+ usec_t until,
+ AskPasswordFlags flags,
+ char ***ret) {
+
+ int r;
+
+ assert(ret);
+
+ if ((flags & ASK_PASSWORD_ACCEPT_CACHED) && keyname) {
+ r = ask_password_keyring(keyname, flags, ret);
+ if (r != -ENOKEY)
+ return r;
+ }
+
+ if (!(flags & ASK_PASSWORD_NO_TTY) && isatty(STDIN_FILENO)) {
+ char *s = NULL, **l = NULL;
+
+ r = ask_password_tty(message, keyname, until, flags, NULL, &s);
+ if (r < 0)
+ return r;
+
+ r = strv_push(&l, s);
+ if (r < 0) {
+ string_erase(s);
+ free(s);
+ return -ENOMEM;
+ }
+
+ *ret = l;
+ return 0;
+ }
+
+ if (!(flags & ASK_PASSWORD_NO_AGENT))
+ return ask_password_agent(message, icon, id, keyname, until, flags, ret);
+
+ return -EUNATCH;
+}
diff --git a/src/libsystemd-shared/src/base-filesystem.c b/src/libsystemd-shared/src/base-filesystem.c
new file mode 100644
index 0000000000..d0a601e918
--- /dev/null
+++ b/src/libsystemd-shared/src/base-filesystem.c
@@ -0,0 +1,129 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Kay Sievers
+
+ 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 <stdbool.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/umask-util.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/base-filesystem.h"
+
+typedef struct BaseFilesystem {
+ const char *dir;
+ mode_t mode;
+ const char *target;
+ const char *exists;
+ bool ignore_failure;
+} BaseFilesystem;
+
+static const BaseFilesystem table[] = {
+ { "bin", 0, "usr/bin\0", NULL },
+ { "lib", 0, "usr/lib\0", NULL },
+ { "root", 0755, NULL, NULL, true },
+ { "sbin", 0, "usr/sbin\0", NULL },
+ { "usr", 0755, NULL, NULL },
+ { "var", 0755, NULL, NULL },
+ { "etc", 0755, NULL, NULL },
+#if defined(__i386__) || defined(__x86_64__)
+ { "lib64", 0, "usr/lib/x86_64-linux-gnu\0"
+ "usr/lib64\0", "ld-linux-x86-64.so.2" },
+#endif
+};
+
+int base_filesystem_create(const char *root, uid_t uid, gid_t gid) {
+ _cleanup_close_ int fd = -1;
+ unsigned i;
+ int r = 0;
+
+ fd = open(root, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
+ if (fd < 0)
+ return log_error_errno(errno, "Failed to open root file system: %m");
+
+ for (i = 0; i < ELEMENTSOF(table); i ++) {
+ if (faccessat(fd, table[i].dir, F_OK, AT_SYMLINK_NOFOLLOW) >= 0)
+ continue;
+
+ if (table[i].target) {
+ const char *target = NULL, *s;
+
+ /* check if one of the targets exists */
+ NULSTR_FOREACH(s, table[i].target) {
+ if (faccessat(fd, s, F_OK, AT_SYMLINK_NOFOLLOW) < 0)
+ continue;
+
+ /* check if a specific file exists at the target path */
+ if (table[i].exists) {
+ _cleanup_free_ char *p = NULL;
+
+ p = strjoin(s, "/", table[i].exists, NULL);
+ if (!p)
+ return log_oom();
+
+ if (faccessat(fd, p, F_OK, AT_SYMLINK_NOFOLLOW) < 0)
+ continue;
+ }
+
+ target = s;
+ break;
+ }
+
+ if (!target)
+ continue;
+
+ r = symlinkat(target, fd, table[i].dir);
+ if (r < 0 && errno != EEXIST)
+ return log_error_errno(errno, "Failed to create symlink at %s/%s: %m", root, table[i].dir);
+
+ if (uid != UID_INVALID || gid != UID_INVALID) {
+ if (fchownat(fd, table[i].dir, uid, gid, AT_SYMLINK_NOFOLLOW) < 0)
+ return log_error_errno(errno, "Failed to chown symlink at %s/%s: %m", root, table[i].dir);
+ }
+
+ continue;
+ }
+
+ RUN_WITH_UMASK(0000)
+ r = mkdirat(fd, table[i].dir, table[i].mode);
+ if (r < 0 && errno != EEXIST) {
+ log_full_errno(table[i].ignore_failure ? LOG_DEBUG : LOG_ERR, errno,
+ "Failed to create directory at %s/%s: %m", root, table[i].dir);
+
+ if (!table[i].ignore_failure)
+ return -errno;
+ }
+
+ if (uid != UID_INVALID || gid != UID_INVALID) {
+ if (fchownat(fd, table[i].dir, uid, gid, AT_SYMLINK_NOFOLLOW) < 0)
+ return log_error_errno(errno, "Failed to chown directory at %s/%s: %m", root, table[i].dir);
+ }
+ }
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/boot-timestamps.c b/src/libsystemd-shared/src/boot-timestamps.c
new file mode 100644
index 0000000000..e6a4392bd5
--- /dev/null
+++ b/src/libsystemd-shared/src/boot-timestamps.c
@@ -0,0 +1,64 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Lennart Poettering
+ Copyright 2013 Kay Sievers
+
+ 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-basic/macro.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-shared/acpi-fpdt.h"
+#include "systemd-shared/boot-timestamps.h"
+#include "systemd-shared/efivars.h"
+
+int boot_timestamps(const dual_timestamp *n, dual_timestamp *firmware, dual_timestamp *loader) {
+ usec_t x = 0, y = 0, a;
+ int r;
+ dual_timestamp _n;
+
+ assert(firmware);
+ assert(loader);
+
+ if (!n) {
+ dual_timestamp_get(&_n);
+ n = &_n;
+ }
+
+ r = acpi_get_boot_usec(&x, &y);
+ if (r < 0) {
+ r = efi_loader_get_boot_usec(&x, &y);
+ if (r < 0)
+ return r;
+ }
+
+ /* Let's convert this to timestamps where the firmware
+ * began/loader began working. To make this more confusing:
+ * since usec_t is unsigned and the kernel's monotonic clock
+ * begins at kernel initialization we'll actually initialize
+ * the monotonic timestamps here as negative of the actual
+ * value. */
+
+ firmware->monotonic = y;
+ loader->monotonic = y - x;
+
+ a = n->monotonic + firmware->monotonic;
+ firmware->realtime = n->realtime > a ? n->realtime - a : 0;
+
+ a = n->monotonic + loader->monotonic;
+ loader->realtime = n->realtime > a ? n->realtime - a : 0;
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/bus-unit-util.c b/src/libsystemd-shared/src/bus-unit-util.c
new file mode 100644
index 0000000000..41db672584
--- /dev/null
+++ b/src/libsystemd-shared/src/bus-unit-util.c
@@ -0,0 +1,1350 @@
+/***
+ 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/>.
+***/
+
+#include "sd-bus/bus-internal.h"
+#include "sd-bus/bus-util.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/cgroup-util.h"
+#include "systemd-basic/env-util.h"
+#include "systemd-basic/escape.h"
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/list.h"
+#include "systemd-basic/locale-util.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/rlimit-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/syslog-util.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/bus-unit-util.h"
+
+int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) {
+ assert(message);
+ assert(u);
+
+ u->machine = NULL;
+
+ return sd_bus_message_read(
+ message,
+ "(ssssssouso)",
+ &u->id,
+ &u->description,
+ &u->load_state,
+ &u->active_state,
+ &u->sub_state,
+ &u->following,
+ &u->unit_path,
+ &u->job_id,
+ &u->job_type,
+ &u->job_path);
+}
+
+int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) {
+ const char *eq, *field;
+ int r, rl;
+
+ assert(m);
+ assert(assignment);
+
+ eq = strchr(assignment, '=');
+ if (!eq) {
+ log_error("Not an assignment: %s", assignment);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ field = strndupa(assignment, eq - assignment);
+ eq++;
+
+ if (streq(field, "CPUQuota")) {
+
+ if (isempty(eq))
+ r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", USEC_INFINITY);
+ else {
+ r = parse_percent_unbounded(eq);
+ if (r <= 0) {
+ log_error_errno(r, "CPU quota '%s' invalid.", eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) r * USEC_PER_SEC / 100U);
+ }
+
+ goto finish;
+
+ } else if (streq(field, "EnvironmentFile")) {
+
+ r = sd_bus_message_append(m, "sv", "EnvironmentFiles", "a(sb)", 1,
+ eq[0] == '-' ? eq + 1 : eq,
+ eq[0] == '-');
+ goto finish;
+
+ } else if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec", "RuntimeMaxSec")) {
+ char *n;
+ usec_t t;
+ size_t l;
+
+ r = parse_sec(eq, &t);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse %s= parameter: %s", field, eq);
+
+ l = strlen(field);
+ n = newa(char, l + 2);
+ if (!n)
+ return log_oom();
+
+ /* Change suffix Sec → USec */
+ strcpy(mempcpy(n, field, l - 3), "USec");
+ r = sd_bus_message_append(m, "sv", n, "t", t);
+ goto finish;
+
+ } else if (STR_IN_SET(field, "MemoryLow", "MemoryHigh", "MemoryMax", "MemoryLimit")) {
+ uint64_t bytes;
+
+ if (isempty(eq) || streq(eq, "infinity"))
+ bytes = CGROUP_LIMIT_MAX;
+ else {
+ r = parse_percent(eq);
+ if (r >= 0) {
+ char *n;
+
+ /* When this is a percentage we'll convert this into a relative value in the range
+ * 0…UINT32_MAX and pass it in the MemoryLowScale property (and related
+ * ones). This way the physical memory size can be determined server-side */
+
+ n = strjoina(field, "Scale");
+ r = sd_bus_message_append(m, "sv", n, "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U));
+ goto finish;
+
+ } else {
+ r = parse_size(eq, 1024, &bytes);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse bytes specification %s", assignment);
+ }
+ }
+
+ r = sd_bus_message_append(m, "sv", field, "t", bytes);
+ goto finish;
+ } else if (streq(field, "TasksMax")) {
+ uint64_t t;
+
+ if (isempty(eq) || streq(eq, "infinity"))
+ t = (uint64_t) -1;
+ else {
+ r = parse_percent(eq);
+ if (r >= 0) {
+ r = sd_bus_message_append(m, "sv", "TasksMaxScale", "u", (uint32_t) (((uint64_t) UINT32_MAX * r) / 100U));
+ goto finish;
+ } else {
+ r = safe_atou64(eq, &t);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse maximum tasks specification %s", assignment);
+ }
+
+ }
+
+ r = sd_bus_message_append(m, "sv", "TasksMax", "t", t);
+ goto finish;
+ }
+
+ r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ rl = rlimit_from_string(field);
+ if (rl >= 0) {
+ const char *sn;
+ struct rlimit l;
+
+ r = rlimit_parse(rl, eq, &l);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse resource limit: %s", eq);
+
+ r = sd_bus_message_append(m, "v", "t", l.rlim_max);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ sn = strjoina(field, "Soft");
+ r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur);
+
+ } else if (STR_IN_SET(field,
+ "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting",
+ "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies",
+ "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit",
+ "PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers", "NoNewPrivileges",
+ "SyslogLevelPrefix", "Delegate", "RemainAfterElapse", "MemoryDenyWriteExecute",
+ "RestrictRealtime", "DynamicUser", "RemoveIPC", "ProtectKernelTunables",
+ "ProtectKernelModules", "ProtectControlGroups")) {
+
+ r = parse_boolean(eq);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment);
+
+ r = sd_bus_message_append(m, "v", "b", r);
+
+ } else if (STR_IN_SET(field, "CPUWeight", "StartupCPUWeight")) {
+ uint64_t u;
+
+ r = cg_weight_parse(eq, &u);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "t", u);
+
+ } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) {
+ uint64_t u;
+
+ r = cg_cpu_shares_parse(eq, &u);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "t", u);
+
+ } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) {
+ uint64_t u;
+
+ r = cg_weight_parse(eq, &u);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "t", u);
+
+ } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) {
+ uint64_t u;
+
+ r = cg_blkio_weight_parse(eq, &u);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "t", u);
+
+ } else if (STR_IN_SET(field,
+ "User", "Group", "DevicePolicy", "KillMode",
+ "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath",
+ "StandardInput", "StandardOutput", "StandardError",
+ "Description", "Slice", "Type", "WorkingDirectory",
+ "RootDirectory", "SyslogIdentifier", "ProtectSystem",
+ "ProtectHome", "SELinuxContext"))
+ r = sd_bus_message_append(m, "v", "s", eq);
+
+ else if (streq(field, "SyslogLevel")) {
+ int level;
+
+ level = log_level_from_string(eq);
+ if (level < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "i", level);
+
+ } else if (streq(field, "SyslogFacility")) {
+ int facility;
+
+ facility = log_facility_unshifted_from_string(eq);
+ if (facility < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "i", facility);
+
+ } else if (streq(field, "DeviceAllow")) {
+
+ if (isempty(eq))
+ r = sd_bus_message_append(m, "v", "a(ss)", 0);
+ else {
+ const char *path, *rwm, *e;
+
+ e = strchr(eq, ' ');
+ if (e) {
+ path = strndupa(eq, e - eq);
+ rwm = e+1;
+ } else {
+ path = eq;
+ rwm = "";
+ }
+
+ if (!is_deviceallow_pattern(path)) {
+ log_error("%s is not a device file in /dev.", path);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
+ }
+
+ } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) {
+
+ if (isempty(eq))
+ r = sd_bus_message_append(m, "v", "a(st)", 0);
+ else {
+ const char *path, *bandwidth, *e;
+ uint64_t bytes;
+
+ e = strchr(eq, ' ');
+ if (e) {
+ path = strndupa(eq, e - eq);
+ bandwidth = e+1;
+ } else {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ if (!path_startswith(path, "/dev")) {
+ log_error("%s is not a device file in /dev.", path);
+ return -EINVAL;
+ }
+
+ if (streq(bandwidth, "infinity")) {
+ bytes = CGROUP_LIMIT_MAX;
+ } else {
+ r = parse_size(bandwidth, 1000, &bytes);
+ if (r < 0) {
+ log_error("Failed to parse byte value %s.", bandwidth);
+ return -EINVAL;
+ }
+ }
+
+ r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes);
+ }
+
+ } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) {
+
+ if (isempty(eq))
+ r = sd_bus_message_append(m, "v", "a(st)", 0);
+ else {
+ const char *path, *weight, *e;
+ uint64_t u;
+
+ e = strchr(eq, ' ');
+ if (e) {
+ path = strndupa(eq, e - eq);
+ weight = e+1;
+ } else {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ if (!path_startswith(path, "/dev")) {
+ log_error("%s is not a device file in /dev.", path);
+ return -EINVAL;
+ }
+
+ r = safe_atou64(weight, &u);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s.", field, weight);
+ return -EINVAL;
+ }
+ r = sd_bus_message_append(m, "v", "a(st)", 1, path, u);
+ }
+
+ } else if (streq(field, "Nice")) {
+ int n;
+
+ r = parse_nice(eq, &n);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse nice value: %s", eq);
+
+ r = sd_bus_message_append(m, "v", "i", (int32_t) n);
+
+ } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) {
+ const char *p;
+
+ r = sd_bus_message_open_container(m, 'v', "as");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_open_container(m, 'a', "s");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ p = eq;
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE);
+ if (r < 0) {
+ log_error("Failed to parse Environment value %s", eq);
+ return -EINVAL;
+ }
+ if (r == 0)
+ break;
+
+ if (streq(field, "Environment")) {
+ if (!env_assignment_is_valid(word)) {
+ log_error("Invalid environment assignment: %s", word);
+ return -EINVAL;
+ }
+ } else { /* PassEnvironment */
+ if (!env_name_is_valid(word)) {
+ log_error("Invalid environment variable name: %s", word);
+ return -EINVAL;
+ }
+ }
+
+ r = sd_bus_message_append_basic(m, 's', word);
+ if (r < 0)
+ return bus_log_create_error(r);
+ }
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_close_container(m);
+
+ } else if (streq(field, "KillSignal")) {
+ int sig;
+
+ sig = signal_from_string_try_harder(eq);
+ if (sig < 0) {
+ log_error("Failed to parse %s value %s.", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "i", sig);
+
+ } else if (streq(field, "TimerSlackNSec")) {
+ nsec_t n;
+
+ r = parse_nsec(eq, &n);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s", field, eq);
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "t", n);
+ } else if (streq(field, "OOMScoreAdjust")) {
+ int oa;
+
+ r = safe_atoi(eq, &oa);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s", field, eq);
+ return -EINVAL;
+ }
+
+ if (!oom_score_adjust_is_valid(oa)) {
+ log_error("OOM score adjust value out of range");
+ return -EINVAL;
+ }
+
+ r = sd_bus_message_append(m, "v", "i", oa);
+ } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
+ "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
+ const char *p;
+
+ r = sd_bus_message_open_container(m, 'v', "as");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_open_container(m, 'a', "s");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ p = eq;
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+ int offset;
+
+ r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
+ if (r < 0) {
+ log_error("Failed to parse %s value %s", field, eq);
+ return -EINVAL;
+ }
+ if (r == 0)
+ break;
+
+ if (!utf8_is_valid(word)) {
+ log_error("Failed to parse %s value %s", field, eq);
+ return -EINVAL;
+ }
+
+ offset = word[0] == '-';
+ if (!path_is_absolute(word + offset)) {
+ log_error("Failed to parse %s value %s", field, eq);
+ return -EINVAL;
+ }
+
+ path_kill_slashes(word + offset);
+
+ r = sd_bus_message_append_basic(m, 's', word);
+ if (r < 0)
+ return bus_log_create_error(r);
+ }
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_close_container(m);
+
+ } else if (streq(field, "RuntimeDirectory")) {
+ const char *p;
+
+ r = sd_bus_message_open_container(m, 'v', "as");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_open_container(m, 'a', "s");
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ p = eq;
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse %s value %s", field, eq);
+
+ if (r == 0)
+ break;
+
+ r = sd_bus_message_append_basic(m, 's', word);
+ if (r < 0)
+ return bus_log_create_error(r);
+ }
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_close_container(m);
+
+ } else {
+ log_error("Unknown assignment %s.", assignment);
+ return -EINVAL;
+ }
+
+finish:
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ return 0;
+}
+
+int bus_append_unit_property_assignment_many(sd_bus_message *m, char **l) {
+ char **i;
+ int r;
+
+ assert(m);
+
+ STRV_FOREACH(i, l) {
+ r = bus_append_unit_property_assignment(m, *i);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+typedef struct BusWaitForJobs {
+ sd_bus *bus;
+ Set *jobs;
+
+ char *name;
+ char *result;
+
+ sd_bus_slot *slot_job_removed;
+ sd_bus_slot *slot_disconnected;
+} BusWaitForJobs;
+
+static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+ assert(m);
+
+ log_error("Warning! D-Bus connection terminated.");
+ sd_bus_close(sd_bus_message_get_bus(m));
+
+ return 0;
+}
+
+static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+ const char *path, *unit, *result;
+ BusWaitForJobs *d = userdata;
+ uint32_t id;
+ char *found;
+ int r;
+
+ assert(m);
+ assert(d);
+
+ r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
+ if (r < 0) {
+ bus_log_parse_error(r);
+ return 0;
+ }
+
+ found = set_remove(d->jobs, (char*) path);
+ if (!found)
+ return 0;
+
+ free(found);
+
+ if (!isempty(result))
+ d->result = strdup(result);
+
+ if (!isempty(unit))
+ d->name = strdup(unit);
+
+ return 0;
+}
+
+void bus_wait_for_jobs_free(BusWaitForJobs *d) {
+ if (!d)
+ return;
+
+ set_free_free(d->jobs);
+
+ sd_bus_slot_unref(d->slot_disconnected);
+ sd_bus_slot_unref(d->slot_job_removed);
+
+ sd_bus_unref(d->bus);
+
+ free(d->name);
+ free(d->result);
+
+ free(d);
+}
+
+int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) {
+ _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL;
+ int r;
+
+ assert(bus);
+ assert(ret);
+
+ d = new0(BusWaitForJobs, 1);
+ if (!d)
+ return -ENOMEM;
+
+ d->bus = sd_bus_ref(bus);
+
+ /* When we are a bus client we match by sender. Direct
+ * connections OTOH have no initialized sender field, and
+ * hence we ignore the sender then */
+ r = sd_bus_add_match(
+ bus,
+ &d->slot_job_removed,
+ bus->bus_client ?
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "member='JobRemoved',"
+ "path='/org/freedesktop/systemd1'" :
+ "type='signal',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "member='JobRemoved',"
+ "path='/org/freedesktop/systemd1'",
+ match_job_removed, d);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_add_match(
+ bus,
+ &d->slot_disconnected,
+ "type='signal',"
+ "sender='org.freedesktop.DBus.Local',"
+ "interface='org.freedesktop.DBus.Local',"
+ "member='Disconnected'",
+ match_disconnected, d);
+ if (r < 0)
+ return r;
+
+ *ret = d;
+ d = NULL;
+
+ return 0;
+}
+
+static int bus_process_wait(sd_bus *bus) {
+ int r;
+
+ for (;;) {
+ r = sd_bus_process(bus, NULL);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return 0;
+
+ r = sd_bus_wait(bus, (uint64_t) -1);
+ if (r < 0)
+ return r;
+ }
+}
+
+static int bus_job_get_service_result(BusWaitForJobs *d, char **result) {
+ _cleanup_free_ char *dbus_path = NULL;
+
+ assert(d);
+ assert(d->name);
+ assert(result);
+
+ dbus_path = unit_dbus_path_from_name(d->name);
+ if (!dbus_path)
+ return -ENOMEM;
+
+ return sd_bus_get_property_string(d->bus,
+ "org.freedesktop.systemd1",
+ dbus_path,
+ "org.freedesktop.systemd1.Service",
+ "Result",
+ NULL,
+ result);
+}
+
+static const struct {
+ const char *result, *explanation;
+} explanations [] = {
+ { "resources", "of unavailable resources or another system error" },
+ { "timeout", "a timeout was exceeded" },
+ { "exit-code", "the control process exited with error code" },
+ { "signal", "a fatal signal was delivered to the control process" },
+ { "core-dump", "a fatal signal was delivered causing the control process to dump core" },
+ { "watchdog", "the service failed to send watchdog ping" },
+ { "start-limit", "start of the service was attempted too often" }
+};
+
+static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) {
+ _cleanup_free_ char *service_shell_quoted = NULL;
+ const char *systemctl = "systemctl", *journalctl = "journalctl";
+
+ assert(service);
+
+ service_shell_quoted = shell_maybe_quote(service);
+
+ if (extra_args && extra_args[1]) {
+ _cleanup_free_ char *t;
+
+ t = strv_join((char**) extra_args, " ");
+ systemctl = strjoina("systemctl ", t ? : "<args>");
+ journalctl = strjoina("journalctl ", t ? : "<args>");
+ }
+
+ if (!isempty(result)) {
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(explanations); ++i)
+ if (streq(result, explanations[i].result))
+ break;
+
+ if (i < ELEMENTSOF(explanations)) {
+ log_error("Job for %s failed because %s.\n"
+ "See \"%s status %s\" and \"%s -xe\" for details.\n",
+ service,
+ explanations[i].explanation,
+ systemctl,
+ service_shell_quoted ?: "<service>",
+ journalctl);
+ goto finish;
+ }
+ }
+
+ log_error("Job for %s failed.\n"
+ "See \"%s status %s\" and \"%s -xe\" for details.\n",
+ service,
+ systemctl,
+ service_shell_quoted ?: "<service>",
+ journalctl);
+
+finish:
+ /* For some results maybe additional explanation is required */
+ if (streq_ptr(result, "start-limit"))
+ log_info("To force a start use \"%1$s reset-failed %2$s\"\n"
+ "followed by \"%1$s start %2$s\" again.",
+ systemctl,
+ service_shell_quoted ?: "<service>");
+}
+
+static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) {
+ int r = 0;
+
+ assert(d->result);
+
+ if (!quiet) {
+ if (streq(d->result, "canceled"))
+ log_error("Job for %s canceled.", strna(d->name));
+ else if (streq(d->result, "timeout"))
+ log_error("Job for %s timed out.", strna(d->name));
+ else if (streq(d->result, "dependency"))
+ log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name));
+ else if (streq(d->result, "invalid"))
+ log_error("%s is not active, cannot reload.", strna(d->name));
+ else if (streq(d->result, "assert"))
+ log_error("Assertion failed on job for %s.", strna(d->name));
+ else if (streq(d->result, "unsupported"))
+ log_error("Operation on or unit type of %s not supported on this system.", strna(d->name));
+ else if (!streq(d->result, "done") && !streq(d->result, "skipped")) {
+ if (d->name) {
+ int q;
+ _cleanup_free_ char *result = NULL;
+
+ q = bus_job_get_service_result(d, &result);
+ if (q < 0)
+ log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name);
+
+ log_job_error_with_service_result(d->name, result, extra_args);
+ } else
+ log_error("Job failed. See \"journalctl -xe\" for details.");
+ }
+ }
+
+ if (streq(d->result, "canceled"))
+ r = -ECANCELED;
+ else if (streq(d->result, "timeout"))
+ r = -ETIME;
+ else if (streq(d->result, "dependency"))
+ r = -EIO;
+ else if (streq(d->result, "invalid"))
+ r = -ENOEXEC;
+ else if (streq(d->result, "assert"))
+ r = -EPROTO;
+ else if (streq(d->result, "unsupported"))
+ r = -EOPNOTSUPP;
+ else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
+ r = -EIO;
+
+ return r;
+}
+
+int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) {
+ int r = 0;
+
+ assert(d);
+
+ while (!set_isempty(d->jobs)) {
+ int q;
+
+ q = bus_process_wait(d->bus);
+ if (q < 0)
+ return log_error_errno(q, "Failed to wait for response: %m");
+
+ if (d->result) {
+ q = check_wait_response(d, quiet, extra_args);
+ /* Return the first error as it is most likely to be
+ * meaningful. */
+ if (q < 0 && r == 0)
+ r = q;
+
+ log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name));
+ }
+
+ d->name = mfree(d->name);
+ d->result = mfree(d->result);
+ }
+
+ return r;
+}
+
+int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) {
+ int r;
+
+ assert(d);
+
+ r = set_ensure_allocated(&d->jobs, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ return set_put_strdup(d->jobs, path);
+}
+
+int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) {
+ int r;
+
+ r = bus_wait_for_jobs_add(d, path);
+ if (r < 0)
+ return log_oom();
+
+ return bus_wait_for_jobs(d, quiet, NULL);
+}
+
+int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) {
+ const char *type, *path, *source;
+ int r;
+
+ /* changes is dereferenced when calling unit_file_dump_changes() later,
+ * so we have to make sure this is not NULL. */
+ assert(changes);
+ assert(n_changes);
+
+ r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
+ /* We expect only "success" changes to be sent over the bus.
+ Hence, reject anything negative. */
+ UnitFileChangeType ch = unit_file_change_type_from_string(type);
+
+ if (ch < 0) {
+ log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path);
+ continue;
+ }
+
+ r = unit_file_changes_add(changes, n_changes, ch, path, source);
+ if (r < 0)
+ return r;
+ }
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ r = sd_bus_message_exit_container(m);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ unit_file_dump_changes(0, NULL, *changes, *n_changes, false);
+ return 0;
+}
+
+struct CGroupInfo {
+ char *cgroup_path;
+ bool is_const; /* If false, cgroup_path should be free()'d */
+
+ Hashmap *pids; /* PID → process name */
+ bool done;
+
+ struct CGroupInfo *parent;
+ LIST_FIELDS(struct CGroupInfo, siblings);
+ LIST_HEAD(struct CGroupInfo, children);
+ size_t n_children;
+};
+
+static bool IS_ROOT(const char *p) {
+ return isempty(p) || streq(p, "/");
+}
+
+static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) {
+ struct CGroupInfo *parent = NULL, *cg;
+ int r;
+
+ assert(cgroups);
+ assert(ret);
+
+ if (IS_ROOT(path))
+ path = "/";
+
+ cg = hashmap_get(cgroups, path);
+ if (cg) {
+ *ret = cg;
+ return 0;
+ }
+
+ if (!IS_ROOT(path)) {
+ const char *e, *pp;
+
+ e = strrchr(path, '/');
+ if (!e)
+ return -EINVAL;
+
+ pp = strndupa(path, e - path);
+ if (!pp)
+ return -ENOMEM;
+
+ r = add_cgroup(cgroups, pp, false, &parent);
+ if (r < 0)
+ return r;
+ }
+
+ cg = new0(struct CGroupInfo, 1);
+ if (!cg)
+ return -ENOMEM;
+
+ if (is_const)
+ cg->cgroup_path = (char*) path;
+ else {
+ cg->cgroup_path = strdup(path);
+ if (!cg->cgroup_path) {
+ free(cg);
+ return -ENOMEM;
+ }
+ }
+
+ cg->is_const = is_const;
+ cg->parent = parent;
+
+ r = hashmap_put(cgroups, cg->cgroup_path, cg);
+ if (r < 0) {
+ if (!is_const)
+ free(cg->cgroup_path);
+ free(cg);
+ return r;
+ }
+
+ if (parent) {
+ LIST_PREPEND(siblings, parent->children, cg);
+ parent->n_children++;
+ }
+
+ *ret = cg;
+ return 1;
+}
+
+static int add_process(
+ Hashmap *cgroups,
+ const char *path,
+ pid_t pid,
+ const char *name) {
+
+ struct CGroupInfo *cg;
+ int r;
+
+ assert(cgroups);
+ assert(name);
+ assert(pid > 0);
+
+ r = add_cgroup(cgroups, path, true, &cg);
+ if (r < 0)
+ return r;
+
+ r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops);
+ if (r < 0)
+ return r;
+
+ return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name);
+}
+
+static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) {
+ assert(cgroups);
+ assert(cg);
+
+ while (cg->children)
+ remove_cgroup(cgroups, cg->children);
+
+ hashmap_remove(cgroups, cg->cgroup_path);
+
+ if (!cg->is_const)
+ free(cg->cgroup_path);
+
+ hashmap_free(cg->pids);
+
+ if (cg->parent)
+ LIST_REMOVE(siblings, cg->parent->children, cg);
+
+ free(cg);
+}
+
+static int cgroup_info_compare_func(const void *a, const void *b) {
+ const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b;
+
+ assert(x);
+ assert(y);
+
+ return strcmp(x->cgroup_path, y->cgroup_path);
+}
+
+static int dump_processes(
+ Hashmap *cgroups,
+ const char *cgroup_path,
+ const char *prefix,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ struct CGroupInfo *cg;
+ int r;
+
+ assert(prefix);
+
+ if (IS_ROOT(cgroup_path))
+ cgroup_path = "/";
+
+ cg = hashmap_get(cgroups, cgroup_path);
+ if (!cg)
+ return 0;
+
+ if (!hashmap_isempty(cg->pids)) {
+ const char *name;
+ size_t n = 0, i;
+ pid_t *pids;
+ void *pidp;
+ Iterator j;
+ int width;
+
+ /* Order processes by their PID */
+ pids = newa(pid_t, hashmap_size(cg->pids));
+
+ HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j)
+ pids[n++] = PTR_TO_PID(pidp);
+
+ assert(n == hashmap_size(cg->pids));
+ qsort_safe(pids, n, sizeof(pid_t), pid_compare_func);
+
+ width = DECIMAL_STR_WIDTH(pids[n-1]);
+
+ for (i = 0; i < n; i++) {
+ _cleanup_free_ char *e = NULL;
+ const char *special;
+ bool more;
+
+ name = hashmap_get(cg->pids, PID_TO_PTR(pids[i]));
+ assert(name);
+
+ if (n_columns != 0) {
+ unsigned k;
+
+ k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U);
+
+ e = ellipsize(name, k, 100);
+ if (e)
+ name = e;
+ }
+
+ more = i+1 < n || cg->children;
+ special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT);
+
+ fprintf(stdout, "%s%s%*"PID_PRI" %s\n",
+ prefix,
+ special,
+ width, pids[i],
+ name);
+ }
+ }
+
+ if (cg->children) {
+ struct CGroupInfo **children, *child;
+ size_t n = 0, i;
+
+ /* Order subcgroups by their name */
+ children = newa(struct CGroupInfo*, cg->n_children);
+ LIST_FOREACH(siblings, child, cg->children)
+ children[n++] = child;
+ assert(n == cg->n_children);
+ qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func);
+
+ if (n_columns != 0)
+ n_columns = MAX(LESS_BY(n_columns, 2U), 20U);
+
+ for (i = 0; i < n; i++) {
+ _cleanup_free_ char *pp = NULL;
+ const char *name, *special;
+ bool more;
+
+ child = children[i];
+
+ name = strrchr(child->cgroup_path, '/');
+ if (!name)
+ return -EINVAL;
+ name++;
+
+ more = i+1 < n;
+ special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT);
+
+ fputs(prefix, stdout);
+ fputs(special, stdout);
+ fputs(name, stdout);
+ fputc('\n', stdout);
+
+ special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE);
+
+ pp = strappend(prefix, special);
+ if (!pp)
+ return -ENOMEM;
+
+ r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ cg->done = true;
+ return 0;
+}
+
+static int dump_extra_processes(
+ Hashmap *cgroups,
+ const char *prefix,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ _cleanup_free_ pid_t *pids = NULL;
+ _cleanup_hashmap_free_ Hashmap *names = NULL;
+ struct CGroupInfo *cg;
+ size_t n_allocated = 0, n = 0, k;
+ Iterator i;
+ int width, r;
+
+ /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as
+ * combined, sorted, linear list. */
+
+ HASHMAP_FOREACH(cg, cgroups, i) {
+ const char *name;
+ void *pidp;
+ Iterator j;
+
+ if (cg->done)
+ continue;
+
+ if (hashmap_isempty(cg->pids))
+ continue;
+
+ r = hashmap_ensure_allocated(&names, &trivial_hash_ops);
+ if (r < 0)
+ return r;
+
+ if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids)))
+ return -ENOMEM;
+
+ HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) {
+ pids[n++] = PTR_TO_PID(pidp);
+
+ r = hashmap_put(names, pidp, (void*) name);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ if (n == 0)
+ return 0;
+
+ qsort_safe(pids, n, sizeof(pid_t), pid_compare_func);
+ width = DECIMAL_STR_WIDTH(pids[n-1]);
+
+ for (k = 0; k < n; k++) {
+ _cleanup_free_ char *e = NULL;
+ const char *name;
+
+ name = hashmap_get(names, PID_TO_PTR(pids[k]));
+ assert(name);
+
+ if (n_columns != 0) {
+ unsigned z;
+
+ z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U);
+
+ e = ellipsize(name, z, 100);
+ if (e)
+ name = e;
+ }
+
+ fprintf(stdout, "%s%s %*" PID_PRI " %s\n",
+ prefix,
+ special_glyph(TRIANGULAR_BULLET),
+ width, pids[k],
+ name);
+ }
+
+ return 0;
+}
+
+int unit_show_processes(
+ sd_bus *bus,
+ const char *unit,
+ const char *cgroup_path,
+ const char *prefix,
+ unsigned n_columns,
+ OutputFlags flags,
+ sd_bus_error *error) {
+
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ Hashmap *cgroups = NULL;
+ struct CGroupInfo *cg;
+ int r;
+
+ assert(bus);
+ assert(unit);
+
+ if (flags & OUTPUT_FULL_WIDTH)
+ n_columns = 0;
+ else if (n_columns <= 0)
+ n_columns = columns();
+
+ prefix = strempty(prefix);
+
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "GetUnitProcesses",
+ error,
+ &reply,
+ "s",
+ unit);
+ if (r < 0)
+ return r;
+
+ cgroups = hashmap_new(&string_hash_ops);
+ if (!cgroups)
+ return -ENOMEM;
+
+ r = sd_bus_message_enter_container(reply, 'a', "(sus)");
+ if (r < 0)
+ goto finish;
+
+ for (;;) {
+ const char *path = NULL, *name = NULL;
+ uint32_t pid;
+
+ r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name);
+ if (r < 0)
+ goto finish;
+ if (r == 0)
+ break;
+
+ r = add_process(cgroups, path, pid, name);
+ if (r < 0)
+ goto finish;
+ }
+
+ r = sd_bus_message_exit_container(reply);
+ if (r < 0)
+ goto finish;
+
+ r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags);
+ if (r < 0)
+ goto finish;
+
+ r = dump_extra_processes(cgroups, prefix, n_columns, flags);
+
+finish:
+ while ((cg = hashmap_first(cgroups)))
+ remove_cgroup(cgroups, cg);
+
+ hashmap_free(cgroups);
+
+ return r;
+}
diff --git a/src/libsystemd-shared/src/cgroup-show.c b/src/libsystemd-shared/src/cgroup-show.c
new file mode 100644
index 0000000000..78560e1262
--- /dev/null
+++ b/src/libsystemd-shared/src/cgroup-show.c
@@ -0,0 +1,312 @@
+/***
+ 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/>.
+***/
+
+#include <dirent.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/cgroup-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/formats-util.h"
+#include "systemd-basic/locale-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-shared/cgroup-show.h"
+#include "systemd-shared/output-mode.h"
+
+static void show_pid_array(
+ pid_t pids[],
+ unsigned n_pids,
+ const char *prefix,
+ unsigned n_columns,
+ bool extra,
+ bool more,
+ OutputFlags flags) {
+
+ unsigned i, j, pid_width;
+
+ if (n_pids == 0)
+ return;
+
+ qsort(pids, n_pids, sizeof(pid_t), pid_compare_func);
+
+ /* Filter duplicates */
+ for (j = 0, i = 1; i < n_pids; i++) {
+ if (pids[i] == pids[j])
+ continue;
+ pids[++j] = pids[i];
+ }
+ n_pids = j + 1;
+ pid_width = DECIMAL_STR_WIDTH(pids[j]);
+
+ if (flags & OUTPUT_FULL_WIDTH)
+ n_columns = 0;
+ else {
+ if (n_columns > pid_width+2)
+ n_columns -= pid_width+2;
+ else
+ n_columns = 20;
+ }
+ for (i = 0; i < n_pids; i++) {
+ _cleanup_free_ char *t = NULL;
+
+ get_process_cmdline(pids[i], n_columns, true, &t);
+
+ if (extra)
+ printf("%s%s ", prefix, special_glyph(TRIANGULAR_BULLET));
+ else
+ printf("%s%s", prefix, special_glyph(((more || i < n_pids-1) ? TREE_BRANCH : TREE_RIGHT)));
+
+ printf("%*"PID_PRI" %s\n", pid_width, pids[i], strna(t));
+ }
+}
+
+static int show_cgroup_one_by_path(
+ const char *path,
+ const char *prefix,
+ unsigned n_columns,
+ bool more,
+ OutputFlags flags) {
+
+ char *fn;
+ _cleanup_fclose_ FILE *f = NULL;
+ size_t n = 0, n_allocated = 0;
+ _cleanup_free_ pid_t *pids = NULL;
+ _cleanup_free_ char *p = NULL;
+ pid_t pid;
+ int r;
+
+ r = cg_mangle_path(path, &p);
+ if (r < 0)
+ return r;
+
+ fn = strjoina(p, "/cgroup.procs");
+ f = fopen(fn, "re");
+ if (!f)
+ return -errno;
+
+ while ((r = cg_read_pid(f, &pid)) > 0) {
+
+ if (!(flags & OUTPUT_KERNEL_THREADS) && is_kernel_thread(pid) > 0)
+ continue;
+
+ if (!GREEDY_REALLOC(pids, n_allocated, n + 1))
+ return -ENOMEM;
+
+ assert(n < n_allocated);
+ pids[n++] = pid;
+ }
+
+ if (r < 0)
+ return r;
+
+ show_pid_array(pids, n, prefix, n_columns, false, more, flags);
+
+ return 0;
+}
+
+int show_cgroup_by_path(
+ const char *path,
+ const char *prefix,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ _cleanup_free_ char *fn = NULL, *p1 = NULL, *last = NULL, *p2 = NULL;
+ _cleanup_closedir_ DIR *d = NULL;
+ char *gn = NULL;
+ bool shown_pids = false;
+ int r;
+
+ assert(path);
+
+ if (n_columns <= 0)
+ n_columns = columns();
+
+ prefix = strempty(prefix);
+
+ r = cg_mangle_path(path, &fn);
+ if (r < 0)
+ return r;
+
+ d = opendir(fn);
+ if (!d)
+ return -errno;
+
+ while ((r = cg_read_subgroup(d, &gn)) > 0) {
+ _cleanup_free_ char *k = NULL;
+
+ k = strjoin(fn, "/", gn, NULL);
+ free(gn);
+ if (!k)
+ return -ENOMEM;
+
+ if (!(flags & OUTPUT_SHOW_ALL) && cg_is_empty_recursive(NULL, k) > 0)
+ continue;
+
+ if (!shown_pids) {
+ show_cgroup_one_by_path(path, prefix, n_columns, true, flags);
+ shown_pids = true;
+ }
+
+ if (last) {
+ printf("%s%s%s\n", prefix, special_glyph(TREE_BRANCH), cg_unescape(basename(last)));
+
+ if (!p1) {
+ p1 = strappend(prefix, special_glyph(TREE_VERTICAL));
+ if (!p1)
+ return -ENOMEM;
+ }
+
+ show_cgroup_by_path(last, p1, n_columns-2, flags);
+ free(last);
+ }
+
+ last = k;
+ k = NULL;
+ }
+
+ if (r < 0)
+ return r;
+
+ if (!shown_pids)
+ show_cgroup_one_by_path(path, prefix, n_columns, !!last, flags);
+
+ if (last) {
+ printf("%s%s%s\n", prefix, special_glyph(TREE_RIGHT), cg_unescape(basename(last)));
+
+ if (!p2) {
+ p2 = strappend(prefix, " ");
+ if (!p2)
+ return -ENOMEM;
+ }
+
+ show_cgroup_by_path(last, p2, n_columns-2, flags);
+ }
+
+ return 0;
+}
+
+int show_cgroup(const char *controller,
+ const char *path,
+ const char *prefix,
+ unsigned n_columns,
+ OutputFlags flags) {
+ _cleanup_free_ char *p = NULL;
+ int r;
+
+ assert(path);
+
+ r = cg_get_path(controller, path, NULL, &p);
+ if (r < 0)
+ return r;
+
+ return show_cgroup_by_path(p, prefix, n_columns, flags);
+}
+
+static int show_extra_pids(
+ const char *controller,
+ const char *path,
+ const char *prefix,
+ unsigned n_columns,
+ const pid_t pids[],
+ unsigned n_pids,
+ OutputFlags flags) {
+
+ _cleanup_free_ pid_t *copy = NULL;
+ unsigned i, j;
+ int r;
+
+ assert(path);
+
+ if (n_pids <= 0)
+ return 0;
+
+ if (n_columns <= 0)
+ n_columns = columns();
+
+ prefix = strempty(prefix);
+
+ copy = new(pid_t, n_pids);
+ if (!copy)
+ return -ENOMEM;
+
+ for (i = 0, j = 0; i < n_pids; i++) {
+ _cleanup_free_ char *k = NULL;
+
+ r = cg_pid_get_path(controller, pids[i], &k);
+ if (r < 0)
+ return r;
+
+ if (path_startswith(k, path))
+ continue;
+
+ copy[j++] = pids[i];
+ }
+
+ show_pid_array(copy, j, prefix, n_columns, true, false, flags);
+
+ return 0;
+}
+
+int show_cgroup_and_extra(
+ const char *controller,
+ const char *path,
+ const char *prefix,
+ unsigned n_columns,
+ const pid_t extra_pids[],
+ unsigned n_extra_pids,
+ OutputFlags flags) {
+
+ int r;
+
+ assert(path);
+
+ r = show_cgroup(controller, path, prefix, n_columns, flags);
+ if (r < 0)
+ return r;
+
+ return show_extra_pids(controller, path, prefix, n_columns, extra_pids, n_extra_pids, flags);
+}
+
+int show_cgroup_and_extra_by_spec(
+ const char *spec,
+ const char *prefix,
+ unsigned n_columns,
+ const pid_t extra_pids[],
+ unsigned n_extra_pids,
+ OutputFlags flags) {
+
+ _cleanup_free_ char *controller = NULL, *path = NULL;
+ int r;
+
+ assert(spec);
+
+ r = cg_split_spec(spec, &controller, &path);
+ if (r < 0)
+ return r;
+
+ return show_cgroup_and_extra(controller, path, prefix, n_columns, extra_pids, n_extra_pids, flags);
+}
diff --git a/src/libsystemd-shared/src/clean-ipc.c b/src/libsystemd-shared/src/clean-ipc.c
new file mode 100644
index 0000000000..f7b8b94d8e
--- /dev/null
+++ b/src/libsystemd-shared/src/clean-ipc.c
@@ -0,0 +1,389 @@
+/***
+ 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 <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <mqueue.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include <sys/sem.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "systemd-basic/dirent-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/formats-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-shared/clean-ipc.h"
+
+static bool match_uid_gid(uid_t subject_uid, gid_t subject_gid, uid_t delete_uid, gid_t delete_gid) {
+
+ if (uid_is_valid(delete_uid) && subject_uid == delete_uid)
+ return true;
+
+ if (gid_is_valid(delete_gid) && subject_gid == delete_gid)
+ return true;
+
+ return false;
+}
+
+static int clean_sysvipc_shm(uid_t delete_uid, gid_t delete_gid) {
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
+ bool first = true;
+ int ret = 0;
+
+ f = fopen("/proc/sysvipc/shm", "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_warning_errno(errno, "Failed to open /proc/sysvipc/shm: %m");
+ }
+
+ FOREACH_LINE(line, f, goto fail) {
+ unsigned n_attached;
+ pid_t cpid, lpid;
+ uid_t uid, cuid;
+ gid_t gid, cgid;
+ int shmid;
+
+ if (first) {
+ first = false;
+ continue;
+ }
+
+ truncate_nl(line);
+
+ if (sscanf(line, "%*i %i %*o %*u " PID_FMT " " PID_FMT " %u " UID_FMT " " GID_FMT " " UID_FMT " " GID_FMT,
+ &shmid, &cpid, &lpid, &n_attached, &uid, &gid, &cuid, &cgid) != 8)
+ continue;
+
+ if (n_attached > 0)
+ continue;
+
+ if (!match_uid_gid(uid, gid, delete_uid, delete_gid))
+ continue;
+
+ if (shmctl(shmid, IPC_RMID, NULL) < 0) {
+
+ /* Ignore entries that are already deleted */
+ if (errno == EIDRM || errno == EINVAL)
+ continue;
+
+ ret = log_warning_errno(errno,
+ "Failed to remove SysV shared memory segment %i: %m",
+ shmid);
+ } else
+ log_debug("Removed SysV shared memory segment %i.", shmid);
+ }
+
+ return ret;
+
+fail:
+ return log_warning_errno(errno, "Failed to read /proc/sysvipc/shm: %m");
+}
+
+static int clean_sysvipc_sem(uid_t delete_uid, gid_t delete_gid) {
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
+ bool first = true;
+ int ret = 0;
+
+ f = fopen("/proc/sysvipc/sem", "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_warning_errno(errno, "Failed to open /proc/sysvipc/sem: %m");
+ }
+
+ FOREACH_LINE(line, f, goto fail) {
+ uid_t uid, cuid;
+ gid_t gid, cgid;
+ int semid;
+
+ if (first) {
+ first = false;
+ continue;
+ }
+
+ truncate_nl(line);
+
+ if (sscanf(line, "%*i %i %*o %*u " UID_FMT " " GID_FMT " " UID_FMT " " GID_FMT,
+ &semid, &uid, &gid, &cuid, &cgid) != 5)
+ continue;
+
+ if (!match_uid_gid(uid, gid, delete_uid, delete_gid))
+ continue;
+
+ if (semctl(semid, 0, IPC_RMID) < 0) {
+
+ /* Ignore entries that are already deleted */
+ if (errno == EIDRM || errno == EINVAL)
+ continue;
+
+ ret = log_warning_errno(errno,
+ "Failed to remove SysV semaphores object %i: %m",
+ semid);
+ } else
+ log_debug("Removed SysV semaphore %i.", semid);
+ }
+
+ return ret;
+
+fail:
+ return log_warning_errno(errno, "Failed to read /proc/sysvipc/sem: %m");
+}
+
+static int clean_sysvipc_msg(uid_t delete_uid, gid_t delete_gid) {
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
+ bool first = true;
+ int ret = 0;
+
+ f = fopen("/proc/sysvipc/msg", "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_warning_errno(errno, "Failed to open /proc/sysvipc/msg: %m");
+ }
+
+ FOREACH_LINE(line, f, goto fail) {
+ uid_t uid, cuid;
+ gid_t gid, cgid;
+ pid_t cpid, lpid;
+ int msgid;
+
+ if (first) {
+ first = false;
+ continue;
+ }
+
+ truncate_nl(line);
+
+ if (sscanf(line, "%*i %i %*o %*u %*u " PID_FMT " " PID_FMT " " UID_FMT " " GID_FMT " " UID_FMT " " GID_FMT,
+ &msgid, &cpid, &lpid, &uid, &gid, &cuid, &cgid) != 7)
+ continue;
+
+ if (!match_uid_gid(uid, gid, delete_uid, delete_gid))
+ continue;
+
+ if (msgctl(msgid, IPC_RMID, NULL) < 0) {
+
+ /* Ignore entries that are already deleted */
+ if (errno == EIDRM || errno == EINVAL)
+ continue;
+
+ ret = log_warning_errno(errno,
+ "Failed to remove SysV message queue %i: %m",
+ msgid);
+ } else
+ log_debug("Removed SysV message queue %i.", msgid);
+ }
+
+ return ret;
+
+fail:
+ return log_warning_errno(errno, "Failed to read /proc/sysvipc/msg: %m");
+}
+
+static int clean_posix_shm_internal(DIR *dir, uid_t uid, gid_t gid) {
+ struct dirent *de;
+ int ret = 0, r;
+
+ assert(dir);
+
+ FOREACH_DIRENT_ALL(de, dir, goto fail) {
+ struct stat st;
+
+ if (STR_IN_SET(de->d_name, "..", "."))
+ continue;
+
+ if (fstatat(dirfd(dir), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ ret = log_warning_errno(errno, "Failed to stat() POSIX shared memory segment %s: %m", de->d_name);
+ continue;
+ }
+
+ if (!match_uid_gid(st.st_uid, st.st_gid, uid, gid))
+ continue;
+
+ if (S_ISDIR(st.st_mode)) {
+ _cleanup_closedir_ DIR *kid;
+
+ kid = xopendirat(dirfd(dir), de->d_name, O_NOFOLLOW|O_NOATIME);
+ if (!kid) {
+ if (errno != ENOENT)
+ ret = log_warning_errno(errno, "Failed to enter shared memory directory %s: %m", de->d_name);
+ } else {
+ r = clean_posix_shm_internal(kid, uid, gid);
+ if (r < 0)
+ ret = r;
+ }
+
+ if (unlinkat(dirfd(dir), de->d_name, AT_REMOVEDIR) < 0) {
+
+ if (errno == ENOENT)
+ continue;
+
+ ret = log_warning_errno(errno, "Failed to remove POSIX shared memory directory %s: %m", de->d_name);
+ } else
+ log_debug("Removed POSIX shared memory directory %s", de->d_name);
+ } else {
+
+ if (unlinkat(dirfd(dir), de->d_name, 0) < 0) {
+
+ if (errno == ENOENT)
+ continue;
+
+ ret = log_warning_errno(errno, "Failed to remove POSIX shared memory segment %s: %m", de->d_name);
+ } else
+ log_debug("Removed POSIX shared memory segment %s", de->d_name);
+ }
+ }
+
+ return ret;
+
+fail:
+ return log_warning_errno(errno, "Failed to read /dev/shm: %m");
+}
+
+static int clean_posix_shm(uid_t uid, gid_t gid) {
+ _cleanup_closedir_ DIR *dir = NULL;
+
+ dir = opendir("/dev/shm");
+ if (!dir) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_warning_errno(errno, "Failed to open /dev/shm: %m");
+ }
+
+ return clean_posix_shm_internal(dir, uid, gid);
+}
+
+static int clean_posix_mq(uid_t uid, gid_t gid) {
+ _cleanup_closedir_ DIR *dir = NULL;
+ struct dirent *de;
+ int ret = 0;
+
+ dir = opendir("/dev/mqueue");
+ if (!dir) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_warning_errno(errno, "Failed to open /dev/mqueue: %m");
+ }
+
+ FOREACH_DIRENT_ALL(de, dir, goto fail) {
+ struct stat st;
+ char fn[1+strlen(de->d_name)+1];
+
+ if (STR_IN_SET(de->d_name, "..", "."))
+ continue;
+
+ if (fstatat(dirfd(dir), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ ret = log_warning_errno(errno,
+ "Failed to stat() MQ segment %s: %m",
+ de->d_name);
+ continue;
+ }
+
+ if (!match_uid_gid(st.st_uid, st.st_gid, uid, gid))
+ continue;
+
+ fn[0] = '/';
+ strcpy(fn+1, de->d_name);
+
+ if (mq_unlink(fn) < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ ret = log_warning_errno(errno,
+ "Failed to unlink POSIX message queue %s: %m",
+ fn);
+ } else
+ log_debug("Removed POSIX message queue %s", fn);
+ }
+
+ return ret;
+
+fail:
+ return log_warning_errno(errno, "Failed to read /dev/mqueue: %m");
+}
+
+int clean_ipc(uid_t uid, gid_t gid) {
+ int ret = 0, r;
+
+ /* Anything to do? */
+ if (!uid_is_valid(uid) && !gid_is_valid(gid))
+ return 0;
+
+ /* Refuse to clean IPC of the root user */
+ if (uid == 0 && gid == 0)
+ return 0;
+
+ r = clean_sysvipc_shm(uid, gid);
+ if (r < 0)
+ ret = r;
+
+ r = clean_sysvipc_sem(uid, gid);
+ if (r < 0)
+ ret = r;
+
+ r = clean_sysvipc_msg(uid, gid);
+ if (r < 0)
+ ret = r;
+
+ r = clean_posix_shm(uid, gid);
+ if (r < 0)
+ ret = r;
+
+ r = clean_posix_mq(uid, gid);
+ if (r < 0)
+ ret = r;
+
+ return ret;
+}
+
+int clean_ipc_by_uid(uid_t uid) {
+ return clean_ipc(uid, GID_INVALID);
+}
+
+int clean_ipc_by_gid(gid_t gid) {
+ return clean_ipc(UID_INVALID, gid);
+}
diff --git a/src/libsystemd-shared/src/condition.c b/src/libsystemd-shared/src/condition.c
new file mode 100644
index 0000000000..b9a955a99b
--- /dev/null
+++ b/src/libsystemd-shared/src/condition.c
@@ -0,0 +1,578 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <systemd/sd-id128.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/architecture.h"
+#include "systemd-basic/audit-util.h"
+#include "systemd-basic/cap-list.h"
+#include "systemd-basic/extract-word.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/glob-util.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/list.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mount-util.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/proc-cmdline.h"
+#include "systemd-basic/selinux-util.h"
+#include "systemd-basic/smack-util.h"
+#include "systemd-basic/stat-util.h"
+#include "systemd-basic/string-table.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-basic/virt.h"
+#include "systemd-shared/apparmor-util.h"
+#include "systemd-shared/condition.h"
+#include "systemd-shared/ima-util.h"
+
+Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate) {
+ Condition *c;
+ int r;
+
+ assert(type >= 0);
+ assert(type < _CONDITION_TYPE_MAX);
+ assert((!parameter) == (type == CONDITION_NULL));
+
+ c = new0(Condition, 1);
+ if (!c)
+ return NULL;
+
+ c->type = type;
+ c->trigger = trigger;
+ c->negate = negate;
+
+ r = free_and_strdup(&c->parameter, parameter);
+ if (r < 0) {
+ free(c);
+ return NULL;
+ }
+
+ return c;
+}
+
+void condition_free(Condition *c) {
+ assert(c);
+
+ free(c->parameter);
+ free(c);
+}
+
+Condition* condition_free_list(Condition *first) {
+ Condition *c, *n;
+
+ LIST_FOREACH_SAFE(conditions, c, n, first)
+ condition_free(c);
+
+ return NULL;
+}
+
+static int condition_test_kernel_command_line(Condition *c) {
+ _cleanup_free_ char *line = NULL;
+ const char *p;
+ bool equal;
+ int r;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_KERNEL_COMMAND_LINE);
+
+ r = proc_cmdline(&line);
+ if (r < 0)
+ return r;
+
+ equal = !!strchr(c->parameter, '=');
+ p = line;
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+ bool found;
+
+ r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (equal)
+ found = streq(word, c->parameter);
+ else {
+ const char *f;
+
+ f = startswith(word, c->parameter);
+ found = f && (*f == '=' || *f == 0);
+ }
+
+ if (found)
+ return true;
+ }
+
+ return false;
+}
+
+static int condition_test_virtualization(Condition *c) {
+ int b, v;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_VIRTUALIZATION);
+
+ if (streq(c->parameter, "private-users"))
+ return running_in_userns();
+
+ v = detect_virtualization();
+ if (v < 0)
+ return v;
+
+ /* First, compare with yes/no */
+ b = parse_boolean(c->parameter);
+ if (b >= 0)
+ return b == !!v;
+
+ /* Then, compare categorization */
+ if (streq(c->parameter, "vm"))
+ return VIRTUALIZATION_IS_VM(v);
+
+ if (streq(c->parameter, "container"))
+ return VIRTUALIZATION_IS_CONTAINER(v);
+
+ /* Finally compare id */
+ return v != VIRTUALIZATION_NONE && streq(c->parameter, virtualization_to_string(v));
+}
+
+static int condition_test_architecture(Condition *c) {
+ int a, b;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_ARCHITECTURE);
+
+ a = uname_architecture();
+ if (a < 0)
+ return a;
+
+ if (streq(c->parameter, "native"))
+ b = native_architecture();
+ else {
+ b = architecture_from_string(c->parameter);
+ if (b < 0) /* unknown architecture? Then it's definitely not ours */
+ return false;
+ }
+
+ return a == b;
+}
+
+static int condition_test_host(Condition *c) {
+ _cleanup_free_ char *h = NULL;
+ sd_id128_t x, y;
+ int r;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_HOST);
+
+ if (sd_id128_from_string(c->parameter, &x) >= 0) {
+
+ r = sd_id128_get_machine(&y);
+ if (r < 0)
+ return r;
+
+ return sd_id128_equal(x, y);
+ }
+
+ h = gethostname_malloc();
+ if (!h)
+ return -ENOMEM;
+
+ return fnmatch(c->parameter, h, FNM_CASEFOLD) == 0;
+}
+
+static int condition_test_ac_power(Condition *c) {
+ int r;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_AC_POWER);
+
+ r = parse_boolean(c->parameter);
+ if (r < 0)
+ return r;
+
+ return (on_ac_power() != 0) == !!r;
+}
+
+static int condition_test_security(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_SECURITY);
+
+ if (streq(c->parameter, "selinux"))
+ return mac_selinux_have();
+ if (streq(c->parameter, "smack"))
+ return mac_smack_use();
+ if (streq(c->parameter, "apparmor"))
+ return mac_apparmor_use();
+ if (streq(c->parameter, "audit"))
+ return use_audit();
+ if (streq(c->parameter, "ima"))
+ return use_ima();
+
+ return false;
+}
+
+static int condition_test_capability(Condition *c) {
+ _cleanup_fclose_ FILE *f = NULL;
+ int value;
+ char line[LINE_MAX];
+ unsigned long long capabilities = -1;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_CAPABILITY);
+
+ /* If it's an invalid capability, we don't have it */
+ value = capability_from_name(c->parameter);
+ if (value < 0)
+ return -EINVAL;
+
+ /* If it's a valid capability we default to assume
+ * that we have it */
+
+ f = fopen("/proc/self/status", "re");
+ if (!f)
+ return -errno;
+
+ while (fgets(line, sizeof(line), f)) {
+ truncate_nl(line);
+
+ if (startswith(line, "CapBnd:")) {
+ (void) sscanf(line+7, "%llx", &capabilities);
+ break;
+ }
+ }
+
+ return !!(capabilities & (1ULL << value));
+}
+
+static int condition_test_needs_update(Condition *c) {
+ const char *p;
+ struct stat usr, other;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_NEEDS_UPDATE);
+
+ /* If the file system is read-only we shouldn't suggest an update */
+ if (path_is_read_only_fs(c->parameter) > 0)
+ return false;
+
+ /* Any other failure means we should allow the condition to be true,
+ * so that we rather invoke too many update tools than too
+ * few. */
+
+ if (!path_is_absolute(c->parameter))
+ return true;
+
+ p = strjoina(c->parameter, "/.updated");
+ if (lstat(p, &other) < 0)
+ return true;
+
+ if (lstat("/usr/", &usr) < 0)
+ return true;
+
+ /*
+ * First, compare seconds as they are always accurate...
+ */
+ if (usr.st_mtim.tv_sec != other.st_mtim.tv_sec)
+ return usr.st_mtim.tv_sec > other.st_mtim.tv_sec;
+
+ /*
+ * ...then compare nanoseconds.
+ *
+ * A false positive is only possible when /usr's nanoseconds > 0
+ * (otherwise /usr cannot be strictly newer than the target file)
+ * AND the target file's nanoseconds == 0
+ * (otherwise the filesystem supports nsec timestamps, see stat(2)).
+ */
+ if (usr.st_mtim.tv_nsec > 0 && other.st_mtim.tv_nsec == 0) {
+ _cleanup_free_ char *timestamp_str = NULL;
+ uint64_t timestamp;
+ int r;
+
+ r = parse_env_file(p, NULL, "TIMESTAMP_NSEC", &timestamp_str, NULL);
+ if (r < 0) {
+ log_error_errno(r, "Failed to parse timestamp file '%s', using mtime: %m", p);
+ return true;
+ } else if (r == 0) {
+ log_debug("No data in timestamp file '%s', using mtime", p);
+ return true;
+ }
+
+ r = safe_atou64(timestamp_str, &timestamp);
+ if (r < 0) {
+ log_error_errno(r, "Failed to parse timestamp value '%s' in file '%s', using mtime: %m", timestamp_str, p);
+ return true;
+ }
+
+ timespec_store(&other.st_mtim, timestamp);
+ }
+
+ return usr.st_mtim.tv_nsec > other.st_mtim.tv_nsec;
+}
+
+static int condition_test_first_boot(Condition *c) {
+ int r;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_FIRST_BOOT);
+
+ r = parse_boolean(c->parameter);
+ if (r < 0)
+ return r;
+
+ return (access("/run/systemd/first-boot", F_OK) >= 0) == !!r;
+}
+
+static int condition_test_path_exists(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_PATH_EXISTS);
+
+ return access(c->parameter, F_OK) >= 0;
+}
+
+static int condition_test_path_exists_glob(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_PATH_EXISTS_GLOB);
+
+ return glob_exists(c->parameter) > 0;
+}
+
+static int condition_test_path_is_directory(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_PATH_IS_DIRECTORY);
+
+ return is_dir(c->parameter, true) > 0;
+}
+
+static int condition_test_path_is_symbolic_link(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_PATH_IS_SYMBOLIC_LINK);
+
+ return is_symlink(c->parameter) > 0;
+}
+
+static int condition_test_path_is_mount_point(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_PATH_IS_MOUNT_POINT);
+
+ return path_is_mount_point(c->parameter, AT_SYMLINK_FOLLOW) > 0;
+}
+
+static int condition_test_path_is_read_write(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_PATH_IS_READ_WRITE);
+
+ return path_is_read_only_fs(c->parameter) <= 0;
+}
+
+static int condition_test_directory_not_empty(Condition *c) {
+ int r;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_DIRECTORY_NOT_EMPTY);
+
+ r = dir_is_empty(c->parameter);
+ return r <= 0 && r != -ENOENT;
+}
+
+static int condition_test_file_not_empty(Condition *c) {
+ struct stat st;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_FILE_NOT_EMPTY);
+
+ return (stat(c->parameter, &st) >= 0 &&
+ S_ISREG(st.st_mode) &&
+ st.st_size > 0);
+}
+
+static int condition_test_file_is_executable(Condition *c) {
+ struct stat st;
+
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_FILE_IS_EXECUTABLE);
+
+ return (stat(c->parameter, &st) >= 0 &&
+ S_ISREG(st.st_mode) &&
+ (st.st_mode & 0111));
+}
+
+static int condition_test_null(Condition *c) {
+ assert(c);
+ assert(c->type == CONDITION_NULL);
+
+ /* Note that during parsing we already evaluate the string and
+ * store it in c->negate */
+ return true;
+}
+
+int condition_test(Condition *c) {
+
+ static int (*const condition_tests[_CONDITION_TYPE_MAX])(Condition *c) = {
+ [CONDITION_PATH_EXISTS] = condition_test_path_exists,
+ [CONDITION_PATH_EXISTS_GLOB] = condition_test_path_exists_glob,
+ [CONDITION_PATH_IS_DIRECTORY] = condition_test_path_is_directory,
+ [CONDITION_PATH_IS_SYMBOLIC_LINK] = condition_test_path_is_symbolic_link,
+ [CONDITION_PATH_IS_MOUNT_POINT] = condition_test_path_is_mount_point,
+ [CONDITION_PATH_IS_READ_WRITE] = condition_test_path_is_read_write,
+ [CONDITION_DIRECTORY_NOT_EMPTY] = condition_test_directory_not_empty,
+ [CONDITION_FILE_NOT_EMPTY] = condition_test_file_not_empty,
+ [CONDITION_FILE_IS_EXECUTABLE] = condition_test_file_is_executable,
+ [CONDITION_KERNEL_COMMAND_LINE] = condition_test_kernel_command_line,
+ [CONDITION_VIRTUALIZATION] = condition_test_virtualization,
+ [CONDITION_SECURITY] = condition_test_security,
+ [CONDITION_CAPABILITY] = condition_test_capability,
+ [CONDITION_HOST] = condition_test_host,
+ [CONDITION_AC_POWER] = condition_test_ac_power,
+ [CONDITION_ARCHITECTURE] = condition_test_architecture,
+ [CONDITION_NEEDS_UPDATE] = condition_test_needs_update,
+ [CONDITION_FIRST_BOOT] = condition_test_first_boot,
+ [CONDITION_NULL] = condition_test_null,
+ };
+
+ int r, b;
+
+ assert(c);
+ assert(c->type >= 0);
+ assert(c->type < _CONDITION_TYPE_MAX);
+
+ r = condition_tests[c->type](c);
+ if (r < 0) {
+ c->result = CONDITION_ERROR;
+ return r;
+ }
+
+ b = (r > 0) == !c->negate;
+ c->result = b ? CONDITION_SUCCEEDED : CONDITION_FAILED;
+ return b;
+}
+
+void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)) {
+ assert(c);
+ assert(f);
+
+ if (!prefix)
+ prefix = "";
+
+ fprintf(f,
+ "%s\t%s: %s%s%s %s\n",
+ prefix,
+ to_string(c->type),
+ c->trigger ? "|" : "",
+ c->negate ? "!" : "",
+ c->parameter,
+ condition_result_to_string(c->result));
+}
+
+void condition_dump_list(Condition *first, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)) {
+ Condition *c;
+
+ LIST_FOREACH(conditions, c, first)
+ condition_dump(c, f, prefix, to_string);
+}
+
+static const char* const condition_type_table[_CONDITION_TYPE_MAX] = {
+ [CONDITION_ARCHITECTURE] = "ConditionArchitecture",
+ [CONDITION_VIRTUALIZATION] = "ConditionVirtualization",
+ [CONDITION_HOST] = "ConditionHost",
+ [CONDITION_KERNEL_COMMAND_LINE] = "ConditionKernelCommandLine",
+ [CONDITION_SECURITY] = "ConditionSecurity",
+ [CONDITION_CAPABILITY] = "ConditionCapability",
+ [CONDITION_AC_POWER] = "ConditionACPower",
+ [CONDITION_NEEDS_UPDATE] = "ConditionNeedsUpdate",
+ [CONDITION_FIRST_BOOT] = "ConditionFirstBoot",
+ [CONDITION_PATH_EXISTS] = "ConditionPathExists",
+ [CONDITION_PATH_EXISTS_GLOB] = "ConditionPathExistsGlob",
+ [CONDITION_PATH_IS_DIRECTORY] = "ConditionPathIsDirectory",
+ [CONDITION_PATH_IS_SYMBOLIC_LINK] = "ConditionPathIsSymbolicLink",
+ [CONDITION_PATH_IS_MOUNT_POINT] = "ConditionPathIsMountPoint",
+ [CONDITION_PATH_IS_READ_WRITE] = "ConditionPathIsReadWrite",
+ [CONDITION_DIRECTORY_NOT_EMPTY] = "ConditionDirectoryNotEmpty",
+ [CONDITION_FILE_NOT_EMPTY] = "ConditionFileNotEmpty",
+ [CONDITION_FILE_IS_EXECUTABLE] = "ConditionFileIsExecutable",
+ [CONDITION_NULL] = "ConditionNull"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(condition_type, ConditionType);
+
+static const char* const assert_type_table[_CONDITION_TYPE_MAX] = {
+ [CONDITION_ARCHITECTURE] = "AssertArchitecture",
+ [CONDITION_VIRTUALIZATION] = "AssertVirtualization",
+ [CONDITION_HOST] = "AssertHost",
+ [CONDITION_KERNEL_COMMAND_LINE] = "AssertKernelCommandLine",
+ [CONDITION_SECURITY] = "AssertSecurity",
+ [CONDITION_CAPABILITY] = "AssertCapability",
+ [CONDITION_AC_POWER] = "AssertACPower",
+ [CONDITION_NEEDS_UPDATE] = "AssertNeedsUpdate",
+ [CONDITION_FIRST_BOOT] = "AssertFirstBoot",
+ [CONDITION_PATH_EXISTS] = "AssertPathExists",
+ [CONDITION_PATH_EXISTS_GLOB] = "AssertPathExistsGlob",
+ [CONDITION_PATH_IS_DIRECTORY] = "AssertPathIsDirectory",
+ [CONDITION_PATH_IS_SYMBOLIC_LINK] = "AssertPathIsSymbolicLink",
+ [CONDITION_PATH_IS_MOUNT_POINT] = "AssertPathIsMountPoint",
+ [CONDITION_PATH_IS_READ_WRITE] = "AssertPathIsReadWrite",
+ [CONDITION_DIRECTORY_NOT_EMPTY] = "AssertDirectoryNotEmpty",
+ [CONDITION_FILE_NOT_EMPTY] = "AssertFileNotEmpty",
+ [CONDITION_FILE_IS_EXECUTABLE] = "AssertFileIsExecutable",
+ [CONDITION_NULL] = "AssertNull"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(assert_type, ConditionType);
+
+static const char* const condition_result_table[_CONDITION_RESULT_MAX] = {
+ [CONDITION_UNTESTED] = "untested",
+ [CONDITION_SUCCEEDED] = "succeeded",
+ [CONDITION_FAILED] = "failed",
+ [CONDITION_ERROR] = "error",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(condition_result, ConditionResult);
diff --git a/src/libsystemd-shared/src/conf-parser.c b/src/libsystemd-shared/src/conf-parser.c
new file mode 100644
index 0000000000..81c40a8891
--- /dev/null
+++ b/src/libsystemd-shared/src/conf-parser.c
@@ -0,0 +1,961 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/conf-files.h"
+#include "systemd-basic/extract-word.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/socket-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/syslog-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-shared/conf-parser.h"
+
+int config_item_table_lookup(
+ const void *table,
+ const char *section,
+ const char *lvalue,
+ ConfigParserCallback *func,
+ int *ltype,
+ void **data,
+ void *userdata) {
+
+ const ConfigTableItem *t;
+
+ assert(table);
+ assert(lvalue);
+ assert(func);
+ assert(ltype);
+ assert(data);
+
+ for (t = table; t->lvalue; t++) {
+
+ if (!streq(lvalue, t->lvalue))
+ continue;
+
+ if (!streq_ptr(section, t->section))
+ continue;
+
+ *func = t->parse;
+ *ltype = t->ltype;
+ *data = t->data;
+ return 1;
+ }
+
+ return 0;
+}
+
+int config_item_perf_lookup(
+ const void *table,
+ const char *section,
+ const char *lvalue,
+ ConfigParserCallback *func,
+ int *ltype,
+ void **data,
+ void *userdata) {
+
+ ConfigPerfItemLookup lookup = (ConfigPerfItemLookup) table;
+ const ConfigPerfItem *p;
+
+ assert(table);
+ assert(lvalue);
+ assert(func);
+ assert(ltype);
+ assert(data);
+
+ if (!section)
+ p = lookup(lvalue, strlen(lvalue));
+ else {
+ char *key;
+
+ key = strjoin(section, ".", lvalue, NULL);
+ if (!key)
+ return -ENOMEM;
+
+ p = lookup(key, strlen(key));
+ free(key);
+ }
+
+ if (!p)
+ return 0;
+
+ *func = p->parse;
+ *ltype = p->ltype;
+ *data = (uint8_t*) userdata + p->offset;
+ return 1;
+}
+
+/* Run the user supplied parser for an assignment */
+static int next_assignment(const char *unit,
+ const char *filename,
+ unsigned line,
+ ConfigItemLookup lookup,
+ const void *table,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ const char *rvalue,
+ bool relaxed,
+ void *userdata) {
+
+ ConfigParserCallback func = NULL;
+ int ltype = 0;
+ void *data = NULL;
+ int r;
+
+ assert(filename);
+ assert(line > 0);
+ assert(lookup);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = lookup(table, section, lvalue, &func, &ltype, &data, userdata);
+ if (r < 0)
+ return r;
+
+ if (r > 0) {
+ if (func)
+ return func(unit, filename, line, section, section_line,
+ lvalue, ltype, rvalue, data, userdata);
+
+ return 0;
+ }
+
+ /* Warn about unknown non-extension fields. */
+ if (!relaxed && !startswith(lvalue, "X-"))
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown lvalue '%s' in section '%s'", lvalue, section);
+
+ return 0;
+}
+
+/* Parse a variable assignment line */
+static int parse_line(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ bool allow_include,
+ char **section,
+ unsigned *section_line,
+ bool *section_ignored,
+ char *l,
+ void *userdata) {
+
+ char *e;
+
+ assert(filename);
+ assert(line > 0);
+ assert(lookup);
+ assert(l);
+
+ l = strstrip(l);
+
+ if (!*l)
+ return 0;
+
+ if (strchr(COMMENTS "\n", *l))
+ return 0;
+
+ if (startswith(l, ".include ")) {
+ _cleanup_free_ char *fn = NULL;
+
+ /* .includes are a bad idea, we only support them here
+ * for historical reasons. They create cyclic include
+ * problems and make it difficult to detect
+ * configuration file changes with an easy
+ * stat(). Better approaches, such as .d/ drop-in
+ * snippets exist.
+ *
+ * Support for them should be eventually removed. */
+
+ if (!allow_include) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, ".include not allowed here. Ignoring.");
+ return 0;
+ }
+
+ fn = file_in_same_dir(filename, strstrip(l+9));
+ if (!fn)
+ return -ENOMEM;
+
+ return config_parse(unit, fn, NULL, sections, lookup, table, relaxed, false, false, userdata);
+ }
+
+ if (*l == '[') {
+ size_t k;
+ char *n;
+
+ k = strlen(l);
+ assert(k > 0);
+
+ if (l[k-1] != ']') {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid section header '%s'", l);
+ return -EBADMSG;
+ }
+
+ n = strndup(l+1, k-2);
+ if (!n)
+ return -ENOMEM;
+
+ if (sections && !nulstr_contains(sections, n)) {
+
+ if (!relaxed && !startswith(n, "X-"))
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown section '%s'. Ignoring.", n);
+
+ free(n);
+ *section = mfree(*section);
+ *section_line = 0;
+ *section_ignored = true;
+ } else {
+ free(*section);
+ *section = n;
+ *section_line = line;
+ *section_ignored = false;
+ }
+
+ return 0;
+ }
+
+ if (sections && !*section) {
+
+ if (!relaxed && !*section_ignored)
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Assignment outside of section. Ignoring.");
+
+ return 0;
+ }
+
+ e = strchr(l, '=');
+ if (!e) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing '='.");
+ return -EINVAL;
+ }
+
+ *e = 0;
+ e++;
+
+ return next_assignment(unit,
+ filename,
+ line,
+ lookup,
+ table,
+ *section,
+ *section_line,
+ strstrip(l),
+ strstrip(e),
+ relaxed,
+ userdata);
+}
+
+/* Go through the file and parse each line */
+int config_parse(const char *unit,
+ const char *filename,
+ FILE *f,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ bool allow_include,
+ bool warn,
+ void *userdata) {
+
+ _cleanup_free_ char *section = NULL, *continuation = NULL;
+ _cleanup_fclose_ FILE *ours = NULL;
+ unsigned line = 0, section_line = 0;
+ bool section_ignored = false, allow_bom = true;
+ int r;
+
+ assert(filename);
+ assert(lookup);
+
+ if (!f) {
+ f = ours = fopen(filename, "re");
+ if (!f) {
+ /* Only log on request, except for ENOENT,
+ * since we return 0 to the caller. */
+ if (warn || errno == ENOENT)
+ log_full(errno == ENOENT ? LOG_DEBUG : LOG_ERR,
+ "Failed to open configuration file '%s': %m", filename);
+ return errno == ENOENT ? 0 : -errno;
+ }
+ }
+
+ fd_warn_permissions(filename, fileno(f));
+
+ for (;;) {
+ char buf[LINE_MAX], *l, *p, *c = NULL, *e;
+ bool escaped = false;
+
+ if (!fgets(buf, sizeof buf, f)) {
+ if (feof(f))
+ break;
+
+ return log_error_errno(errno, "Failed to read configuration file '%s': %m", filename);
+ }
+
+ l = buf;
+ if (allow_bom && startswith(l, UTF8_BYTE_ORDER_MARK))
+ l += strlen(UTF8_BYTE_ORDER_MARK);
+ allow_bom = false;
+
+ truncate_nl(l);
+
+ if (continuation) {
+ c = strappend(continuation, l);
+ if (!c) {
+ if (warn)
+ log_oom();
+ return -ENOMEM;
+ }
+
+ continuation = mfree(continuation);
+ p = c;
+ } else
+ p = l;
+
+ for (e = p; *e; e++) {
+ if (escaped)
+ escaped = false;
+ else if (*e == '\\')
+ escaped = true;
+ }
+
+ if (escaped) {
+ *(e-1) = ' ';
+
+ if (c)
+ continuation = c;
+ else {
+ continuation = strdup(l);
+ if (!continuation) {
+ if (warn)
+ log_oom();
+ return -ENOMEM;
+ }
+ }
+
+ continue;
+ }
+
+ r = parse_line(unit,
+ filename,
+ ++line,
+ sections,
+ lookup,
+ table,
+ relaxed,
+ allow_include,
+ &section,
+ &section_line,
+ &section_ignored,
+ p,
+ userdata);
+ free(c);
+
+ if (r < 0) {
+ if (warn)
+ log_warning_errno(r, "Failed to parse file '%s': %m",
+ filename);
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int config_parse_many_files(
+ const char *conf_file,
+ char **files,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ void *userdata) {
+
+ char **fn;
+ int r;
+
+ if (conf_file) {
+ r = config_parse(NULL, conf_file, NULL, sections, lookup, table, relaxed, false, true, userdata);
+ if (r < 0)
+ return r;
+ }
+
+ STRV_FOREACH(fn, files) {
+ r = config_parse(NULL, *fn, NULL, sections, lookup, table, relaxed, false, true, userdata);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+/* Parse each config file in the directories specified as nulstr. */
+int config_parse_many_nulstr(
+ const char *conf_file,
+ const char *conf_file_dirs,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ void *userdata) {
+
+ _cleanup_strv_free_ char **files = NULL;
+ int r;
+
+ r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs);
+ if (r < 0)
+ return r;
+
+ return config_parse_many_files(conf_file, files,
+ sections, lookup, table, relaxed, userdata);
+}
+
+/* Parse each config file in the directories specified as strv. */
+int config_parse_many(
+ const char *conf_file,
+ const char* const* conf_file_dirs,
+ const char *dropin_dirname,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ void *userdata) {
+
+ _cleanup_strv_free_ char **dropin_dirs = NULL;
+ _cleanup_strv_free_ char **files = NULL;
+ const char *suffix;
+ int r;
+
+ suffix = strjoina("/", dropin_dirname);
+ r = strv_extend_strv_concat(&dropin_dirs, (char**) conf_file_dirs, suffix);
+ if (r < 0)
+ return r;
+
+ r = conf_files_list_strv(&files, ".conf", NULL, (const char* const*) dropin_dirs);
+ if (r < 0)
+ return r;
+
+ return config_parse_many_files(conf_file, files,
+ sections, lookup, table, relaxed, userdata);
+}
+
+#define DEFINE_PARSER(type, vartype, conv_func) \
+ int config_parse_##type( \
+ const char *unit, \
+ const char *filename, \
+ unsigned line, \
+ const char *section, \
+ unsigned section_line, \
+ const char *lvalue, \
+ int ltype, \
+ const char *rvalue, \
+ void *data, \
+ void *userdata) { \
+ \
+ vartype *i = data; \
+ int r; \
+ \
+ assert(filename); \
+ assert(lvalue); \
+ assert(rvalue); \
+ assert(data); \
+ \
+ r = conv_func(rvalue, i); \
+ if (r < 0) \
+ log_syntax(unit, LOG_ERR, filename, line, r, \
+ "Failed to parse %s value, ignoring: %s", \
+ #type, rvalue); \
+ \
+ return 0; \
+ } \
+ struct __useless_struct_to_allow_trailing_semicolon__
+
+DEFINE_PARSER(int, int, safe_atoi);
+DEFINE_PARSER(long, long, safe_atoli);
+DEFINE_PARSER(uint16, uint16_t, safe_atou16);
+DEFINE_PARSER(uint32, uint32_t, safe_atou32);
+DEFINE_PARSER(uint64, uint64_t, safe_atou64);
+DEFINE_PARSER(unsigned, unsigned, safe_atou);
+DEFINE_PARSER(double, double, safe_atod);
+DEFINE_PARSER(nsec, nsec_t, parse_nsec);
+DEFINE_PARSER(sec, usec_t, parse_sec);
+DEFINE_PARSER(mode, mode_t, parse_mode);
+
+int config_parse_iec_size(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ size_t *sz = data;
+ uint64_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_size(rvalue, 1024, &v);
+ if (r < 0 || (uint64_t) (size_t) v != v) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *sz = (size_t) v;
+ return 0;
+}
+
+int config_parse_si_size(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ size_t *sz = data;
+ uint64_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_size(rvalue, 1000, &v);
+ if (r < 0 || (uint64_t) (size_t) v != v) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *sz = (size_t) v;
+ return 0;
+}
+
+int config_parse_iec_uint64(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ uint64_t *bytes = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_size(rvalue, 1024, bytes);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
+
+ return 0;
+}
+
+int config_parse_bool(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int k;
+ bool *b = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ k = parse_boolean(rvalue);
+ if (k < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *b = !!k;
+ return 0;
+}
+
+int config_parse_tristate(
+ const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int k, *t = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ /* A tristate is pretty much a boolean, except that it can
+ * also take the special value -1, indicating "uninitialized",
+ * much like NULL is for a pointer type. */
+
+ k = parse_boolean(rvalue);
+ if (k < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *t = !!k;
+ return 0;
+}
+
+int config_parse_string(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char **s = data, *n;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (!utf8_is_valid(rvalue)) {
+ log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
+ return 0;
+ }
+
+ if (isempty(rvalue))
+ n = NULL;
+ else {
+ n = strdup(rvalue);
+ if (!n)
+ return log_oom();
+ }
+
+ free(*s);
+ *s = n;
+
+ return 0;
+}
+
+int config_parse_path(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char **s = data, *n;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (!utf8_is_valid(rvalue)) {
+ log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
+ return 0;
+ }
+
+ if (!path_is_absolute(rvalue)) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Not an absolute path, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ n = strdup(rvalue);
+ if (!n)
+ return log_oom();
+
+ path_kill_slashes(n);
+
+ free(*s);
+ *s = n;
+
+ return 0;
+}
+
+int config_parse_strv(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char ***sv = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ char **empty;
+
+ /* Empty assignment resets the list. As a special rule
+ * we actually fill in a real empty array here rather
+ * than NULL, since some code wants to know if
+ * something was set at all... */
+ empty = new0(char*, 1);
+ if (!empty)
+ return log_oom();
+
+ strv_free(*sv);
+ *sv = empty;
+
+ return 0;
+ }
+
+ for (;;) {
+ char *word = NULL;
+
+ r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES|EXTRACT_RETAIN_ESCAPE);
+ if (r == 0)
+ break;
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
+ break;
+ }
+
+ if (!utf8_is_valid(word)) {
+ log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
+ free(word);
+ continue;
+ }
+ r = strv_consume(sv, word);
+ if (r < 0)
+ return log_oom();
+ }
+
+ return 0;
+}
+
+int config_parse_log_facility(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+
+ int *o = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ x = log_facility_unshifted_from_string(rvalue);
+ if (x < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log facility, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *o = (x << 3) | LOG_PRI(*o);
+
+ return 0;
+}
+
+int config_parse_log_level(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+
+ int *o = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ x = log_level_from_string(rvalue);
+ if (x < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log level, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *o = (*o & LOG_FACMASK) | x;
+ return 0;
+}
+
+int config_parse_signal(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *sig = data, r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(sig);
+
+ r = signal_from_string_try_harder(rvalue);
+ if (r <= 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse signal name, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *sig = r;
+ return 0;
+}
+
+int config_parse_personality(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ unsigned long *personality = data, p;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(personality);
+
+ p = personality_from_string(rvalue);
+ if (p == PERSONALITY_INVALID) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse personality, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *personality = p;
+ return 0;
+}
+
+int config_parse_ifname(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char **s = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ *s = mfree(*s);
+ return 0;
+ }
+
+ if (!ifname_valid(rvalue)) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ r = free_and_strdup(s, rvalue);
+ if (r < 0)
+ return log_oom();
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/dev-setup.c b/src/libsystemd-shared/src/dev-setup.c
new file mode 100644
index 0000000000..b8f68fcfd2
--- /dev/null
+++ b/src/libsystemd-shared/src/dev-setup.c
@@ -0,0 +1,73 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2012 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 <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/label.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/dev-setup.h"
+
+int dev_setup(const char *prefix, uid_t uid, gid_t gid) {
+ static const char symlinks[] =
+ "-/proc/kcore\0" "/dev/core\0"
+ "/proc/self/fd\0" "/dev/fd\0"
+ "/proc/self/fd/0\0" "/dev/stdin\0"
+ "/proc/self/fd/1\0" "/dev/stdout\0"
+ "/proc/self/fd/2\0" "/dev/stderr\0";
+
+ const char *j, *k;
+ int r;
+
+ NULSTR_FOREACH_PAIR(j, k, symlinks) {
+ _cleanup_free_ char *link_name = NULL;
+ const char *n;
+
+ if (j[0] == '-') {
+ j++;
+
+ if (access(j, F_OK) < 0)
+ continue;
+ }
+
+ if (prefix) {
+ link_name = prefix_root(prefix, k);
+ if (!link_name)
+ return -ENOMEM;
+
+ n = link_name;
+ } else
+ n = k;
+
+ r = symlink_label(j, n);
+ if (r < 0)
+ log_debug_errno(r, "Failed to symlink %s to %s: %m", j, n);
+
+ if (uid != UID_INVALID || gid != GID_INVALID)
+ if (lchown(n, uid, gid) < 0)
+ log_debug_errno(errno, "Failed to chown %s: %m", n);
+ }
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/dns-domain.c b/src/libsystemd-shared/src/dns-domain.c
new file mode 100644
index 0000000000..b0c6707c04
--- /dev/null
+++ b/src/libsystemd-shared/src/dns-domain.c
@@ -0,0 +1,1326 @@
+/***
+ 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/>.
+ ***/
+
+#ifdef HAVE_LIBIDN
+#include <idna.h>
+#include <stringprep.h>
+#endif
+
+#include <endian.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/hexdecoct.h"
+#include "systemd-basic/in-addr-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-shared/dns-domain.h"
+
+int dns_label_unescape(const char **name, char *dest, size_t sz) {
+ const char *n;
+ char *d;
+ int r = 0;
+
+ assert(name);
+ assert(*name);
+
+ n = *name;
+ d = dest;
+
+ for (;;) {
+ if (*n == '.') {
+ n++;
+ break;
+ }
+
+ if (*n == 0)
+ break;
+
+ if (r >= DNS_LABEL_MAX)
+ return -EINVAL;
+
+ if (sz <= 0)
+ return -ENOBUFS;
+
+ if (*n == '\\') {
+ /* Escaped character */
+
+ n++;
+
+ if (*n == 0)
+ /* Ending NUL */
+ return -EINVAL;
+
+ else if (*n == '\\' || *n == '.') {
+ /* Escaped backslash or dot */
+
+ if (d)
+ *(d++) = *n;
+ sz--;
+ r++;
+ n++;
+
+ } else if (n[0] >= '0' && n[0] <= '9') {
+ unsigned k;
+
+ /* Escaped literal ASCII character */
+
+ if (!(n[1] >= '0' && n[1] <= '9') ||
+ !(n[2] >= '0' && n[2] <= '9'))
+ return -EINVAL;
+
+ k = ((unsigned) (n[0] - '0') * 100) +
+ ((unsigned) (n[1] - '0') * 10) +
+ ((unsigned) (n[2] - '0'));
+
+ /* Don't allow anything that doesn't
+ * fit in 8bit. Note that we do allow
+ * control characters, as some servers
+ * (e.g. cloudflare) are happy to
+ * generate labels with them
+ * inside. */
+ if (k > 255)
+ return -EINVAL;
+
+ if (d)
+ *(d++) = (char) k;
+ sz--;
+ r++;
+
+ n += 3;
+ } else
+ return -EINVAL;
+
+ } else if ((uint8_t) *n >= (uint8_t) ' ' && *n != 127) {
+
+ /* Normal character */
+
+ if (d)
+ *(d++) = *n;
+ sz--;
+ r++;
+ n++;
+ } else
+ return -EINVAL;
+ }
+
+ /* Empty label that is not at the end? */
+ if (r == 0 && *n)
+ return -EINVAL;
+
+ /* More than one trailing dot? */
+ if (*n == '.')
+ return -EINVAL;
+
+ if (sz >= 1 && d)
+ *d = 0;
+
+ *name = n;
+ return r;
+}
+
+/* @label_terminal: terminal character of a label, updated to point to the terminal character of
+ * the previous label (always skipping one dot) or to NULL if there are no more
+ * labels. */
+int dns_label_unescape_suffix(const char *name, const char **label_terminal, char *dest, size_t sz) {
+ const char *terminal;
+ int r;
+
+ assert(name);
+ assert(label_terminal);
+ assert(dest);
+
+ /* no more labels */
+ if (!*label_terminal) {
+ if (sz >= 1)
+ *dest = 0;
+
+ return 0;
+ }
+
+ terminal = *label_terminal;
+ assert(*terminal == '.' || *terminal == 0);
+
+ /* Skip current terminal character (and accept domain names ending it ".") */
+ if (*terminal == 0)
+ terminal--;
+ if (terminal >= name && *terminal == '.')
+ terminal--;
+
+ /* Point name to the last label, and terminal to the preceding terminal symbol (or make it a NULL pointer) */
+ for (;;) {
+ if (terminal < name) {
+ /* Reached the first label, so indicate that there are no more */
+ terminal = NULL;
+ break;
+ }
+
+ /* Find the start of the last label */
+ if (*terminal == '.') {
+ const char *y;
+ unsigned slashes = 0;
+
+ for (y = terminal - 1; y >= name && *y == '\\'; y--)
+ slashes++;
+
+ if (slashes % 2 == 0) {
+ /* The '.' was not escaped */
+ name = terminal + 1;
+ break;
+ } else {
+ terminal = y;
+ continue;
+ }
+ }
+
+ terminal--;
+ }
+
+ r = dns_label_unescape(&name, dest, sz);
+ if (r < 0)
+ return r;
+
+ *label_terminal = terminal;
+
+ return r;
+}
+
+int dns_label_escape(const char *p, size_t l, char *dest, size_t sz) {
+ char *q;
+
+ /* DNS labels must be between 1 and 63 characters long. A
+ * zero-length label does not exist. See RFC 2182, Section
+ * 11. */
+
+ if (l <= 0 || l > DNS_LABEL_MAX)
+ return -EINVAL;
+ if (sz < 1)
+ return -ENOBUFS;
+
+ assert(p);
+ assert(dest);
+
+ q = dest;
+ while (l > 0) {
+
+ if (*p == '.' || *p == '\\') {
+
+ /* Dot or backslash */
+
+ if (sz < 3)
+ return -ENOBUFS;
+
+ *(q++) = '\\';
+ *(q++) = *p;
+
+ sz -= 2;
+
+ } else if (*p == '_' ||
+ *p == '-' ||
+ (*p >= '0' && *p <= '9') ||
+ (*p >= 'a' && *p <= 'z') ||
+ (*p >= 'A' && *p <= 'Z')) {
+
+ /* Proper character */
+
+ if (sz < 2)
+ return -ENOBUFS;
+
+ *(q++) = *p;
+ sz -= 1;
+
+ } else {
+
+ /* Everything else */
+
+ if (sz < 5)
+ return -ENOBUFS;
+
+ *(q++) = '\\';
+ *(q++) = '0' + (char) ((uint8_t) *p / 100);
+ *(q++) = '0' + (char) (((uint8_t) *p / 10) % 10);
+ *(q++) = '0' + (char) ((uint8_t) *p % 10);
+
+ sz -= 4;
+ }
+
+ p++;
+ l--;
+ }
+
+ *q = 0;
+ return (int) (q - dest);
+}
+
+int dns_label_escape_new(const char *p, size_t l, char **ret) {
+ _cleanup_free_ char *s = NULL;
+ int r;
+
+ assert(p);
+ assert(ret);
+
+ if (l <= 0 || l > DNS_LABEL_MAX)
+ return -EINVAL;
+
+ s = new(char, DNS_LABEL_ESCAPED_MAX);
+ if (!s)
+ return -ENOMEM;
+
+ r = dns_label_escape(p, l, s, DNS_LABEL_ESCAPED_MAX);
+ if (r < 0)
+ return r;
+
+ *ret = s;
+ s = NULL;
+
+ return r;
+}
+
+int dns_label_apply_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max) {
+#ifdef HAVE_LIBIDN
+ _cleanup_free_ uint32_t *input = NULL;
+ size_t input_size, l;
+ const char *p;
+ bool contains_8bit = false;
+ char buffer[DNS_LABEL_MAX+1];
+
+ assert(encoded);
+ assert(decoded);
+
+ /* Converts an U-label into an A-label */
+
+ if (encoded_size <= 0)
+ return -EINVAL;
+
+ for (p = encoded; p < encoded + encoded_size; p++)
+ if ((uint8_t) *p > 127)
+ contains_8bit = true;
+
+ if (!contains_8bit) {
+ if (encoded_size > DNS_LABEL_MAX)
+ return -EINVAL;
+
+ return 0;
+ }
+
+ input = stringprep_utf8_to_ucs4(encoded, encoded_size, &input_size);
+ if (!input)
+ return -ENOMEM;
+
+ if (idna_to_ascii_4i(input, input_size, buffer, 0) != 0)
+ return -EINVAL;
+
+ l = strlen(buffer);
+
+ /* Verify that the result is not longer than one DNS label. */
+ if (l <= 0 || l > DNS_LABEL_MAX)
+ return -EINVAL;
+ if (l > decoded_max)
+ return -ENOBUFS;
+
+ memcpy(decoded, buffer, l);
+
+ /* If there's room, append a trailing NUL byte, but only then */
+ if (decoded_max > l)
+ decoded[l] = 0;
+
+ return (int) l;
+#else
+ return 0;
+#endif
+}
+
+int dns_label_undo_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max) {
+#ifdef HAVE_LIBIDN
+ size_t input_size, output_size;
+ _cleanup_free_ uint32_t *input = NULL;
+ _cleanup_free_ char *result = NULL;
+ uint32_t *output = NULL;
+ size_t w;
+
+ /* To be invoked after unescaping. Converts an A-label into an U-label. */
+
+ assert(encoded);
+ assert(decoded);
+
+ if (encoded_size <= 0 || encoded_size > DNS_LABEL_MAX)
+ return -EINVAL;
+
+ if (encoded_size < sizeof(IDNA_ACE_PREFIX)-1)
+ return 0;
+
+ if (memcmp(encoded, IDNA_ACE_PREFIX, sizeof(IDNA_ACE_PREFIX) -1) != 0)
+ return 0;
+
+ input = stringprep_utf8_to_ucs4(encoded, encoded_size, &input_size);
+ if (!input)
+ return -ENOMEM;
+
+ output_size = input_size;
+ output = newa(uint32_t, output_size);
+
+ idna_to_unicode_44i(input, input_size, output, &output_size, 0);
+
+ result = stringprep_ucs4_to_utf8(output, output_size, NULL, &w);
+ if (!result)
+ return -ENOMEM;
+ if (w <= 0)
+ return -EINVAL;
+ if (w > decoded_max)
+ return -ENOBUFS;
+
+ memcpy(decoded, result, w);
+
+ /* Append trailing NUL byte if there's space, but only then. */
+ if (decoded_max > w)
+ decoded[w] = 0;
+
+ return w;
+#else
+ return 0;
+#endif
+}
+
+int dns_name_concat(const char *a, const char *b, char **_ret) {
+ _cleanup_free_ char *ret = NULL;
+ size_t n = 0, allocated = 0;
+ const char *p;
+ bool first = true;
+ int r;
+
+ if (a)
+ p = a;
+ else if (b) {
+ p = b;
+ b = NULL;
+ } else
+ goto finish;
+
+ for (;;) {
+ char label[DNS_LABEL_MAX];
+
+ r = dns_label_unescape(&p, label, sizeof(label));
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ if (*p != 0)
+ return -EINVAL;
+
+ if (b) {
+ /* Now continue with the second string, if there is one */
+ p = b;
+ b = NULL;
+ continue;
+ }
+
+ break;
+ }
+
+ if (_ret) {
+ if (!GREEDY_REALLOC(ret, allocated, n + !first + DNS_LABEL_ESCAPED_MAX))
+ return -ENOMEM;
+
+ r = dns_label_escape(label, r, ret + n + !first, DNS_LABEL_ESCAPED_MAX);
+ if (r < 0)
+ return r;
+
+ if (!first)
+ ret[n] = '.';
+ } else {
+ char escaped[DNS_LABEL_ESCAPED_MAX];
+
+ r = dns_label_escape(label, r, escaped, sizeof(escaped));
+ if (r < 0)
+ return r;
+ }
+
+ if (!first)
+ n++;
+ else
+ first = false;
+
+ n += r;
+ }
+
+finish:
+ if (n > DNS_HOSTNAME_MAX)
+ return -EINVAL;
+
+ if (_ret) {
+ if (n == 0) {
+ /* Nothing appended? If so, generate at least a single dot, to indicate the DNS root domain */
+ if (!GREEDY_REALLOC(ret, allocated, 2))
+ return -ENOMEM;
+
+ ret[n++] = '.';
+ } else {
+ if (!GREEDY_REALLOC(ret, allocated, n + 1))
+ return -ENOMEM;
+ }
+
+ ret[n] = 0;
+ *_ret = ret;
+ ret = NULL;
+ }
+
+ return 0;
+}
+
+void dns_name_hash_func(const void *s, struct siphash *state) {
+ const char *p = s;
+ int r;
+
+ assert(p);
+
+ for (;;) {
+ char label[DNS_LABEL_MAX+1];
+
+ r = dns_label_unescape(&p, label, sizeof(label));
+ if (r < 0)
+ break;
+ if (r == 0)
+ break;
+
+ ascii_strlower_n(label, r);
+ siphash24_compress(label, r, state);
+ siphash24_compress_byte(0, state); /* make sure foobar and foo.bar result in different hashes */
+ }
+
+ /* enforce that all names are terminated by the empty label */
+ string_hash_func("", state);
+}
+
+int dns_name_compare_func(const void *a, const void *b) {
+ const char *x, *y;
+ int r, q;
+
+ assert(a);
+ assert(b);
+
+ x = (const char *) a + strlen(a);
+ y = (const char *) b + strlen(b);
+
+ for (;;) {
+ char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX];
+
+ if (x == NULL && y == NULL)
+ return 0;
+
+ r = dns_label_unescape_suffix(a, &x, la, sizeof(la));
+ q = dns_label_unescape_suffix(b, &y, lb, sizeof(lb));
+ if (r < 0 || q < 0)
+ return r - q;
+
+ r = ascii_strcasecmp_nn(la, r, lb, q);
+ if (r != 0)
+ return r;
+ }
+}
+
+const struct hash_ops dns_name_hash_ops = {
+ .hash = dns_name_hash_func,
+ .compare = dns_name_compare_func
+};
+
+int dns_name_equal(const char *x, const char *y) {
+ int r, q;
+
+ assert(x);
+ assert(y);
+
+ for (;;) {
+ char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX];
+
+ r = dns_label_unescape(&x, la, sizeof(la));
+ if (r < 0)
+ return r;
+
+ q = dns_label_unescape(&y, lb, sizeof(lb));
+ if (q < 0)
+ return q;
+
+ if (r != q)
+ return false;
+ if (r == 0)
+ return true;
+
+ if (ascii_strcasecmp_n(la, lb, r) != 0)
+ return false;
+ }
+}
+
+int dns_name_endswith(const char *name, const char *suffix) {
+ const char *n, *s, *saved_n = NULL;
+ int r, q;
+
+ assert(name);
+ assert(suffix);
+
+ n = name;
+ s = suffix;
+
+ for (;;) {
+ char ln[DNS_LABEL_MAX], ls[DNS_LABEL_MAX];
+
+ r = dns_label_unescape(&n, ln, sizeof(ln));
+ if (r < 0)
+ return r;
+
+ if (!saved_n)
+ saved_n = n;
+
+ q = dns_label_unescape(&s, ls, sizeof(ls));
+ if (q < 0)
+ return q;
+
+ if (r == 0 && q == 0)
+ return true;
+ if (r == 0 && saved_n == n)
+ return false;
+
+ if (r != q || ascii_strcasecmp_n(ln, ls, r) != 0) {
+
+ /* Not the same, let's jump back, and try with the next label again */
+ s = suffix;
+ n = saved_n;
+ saved_n = NULL;
+ }
+ }
+}
+
+int dns_name_startswith(const char *name, const char *prefix) {
+ const char *n, *p;
+ int r, q;
+
+ assert(name);
+ assert(prefix);
+
+ n = name;
+ p = prefix;
+
+ for (;;) {
+ char ln[DNS_LABEL_MAX], lp[DNS_LABEL_MAX];
+
+ r = dns_label_unescape(&p, lp, sizeof(lp));
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return true;
+
+ q = dns_label_unescape(&n, ln, sizeof(ln));
+ if (q < 0)
+ return q;
+
+ if (r != q)
+ return false;
+ if (ascii_strcasecmp_n(ln, lp, r) != 0)
+ return false;
+ }
+}
+
+int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret) {
+ const char *n, *s, *saved_before = NULL, *saved_after = NULL, *prefix;
+ int r, q;
+
+ assert(name);
+ assert(old_suffix);
+ assert(new_suffix);
+ assert(ret);
+
+ n = name;
+ s = old_suffix;
+
+ for (;;) {
+ char ln[DNS_LABEL_MAX], ls[DNS_LABEL_MAX];
+
+ if (!saved_before)
+ saved_before = n;
+
+ r = dns_label_unescape(&n, ln, sizeof(ln));
+ if (r < 0)
+ return r;
+
+ if (!saved_after)
+ saved_after = n;
+
+ q = dns_label_unescape(&s, ls, sizeof(ls));
+ if (q < 0)
+ return q;
+
+ if (r == 0 && q == 0)
+ break;
+ if (r == 0 && saved_after == n) {
+ *ret = NULL; /* doesn't match */
+ return 0;
+ }
+
+ if (r != q || ascii_strcasecmp_n(ln, ls, r) != 0) {
+
+ /* Not the same, let's jump back, and try with the next label again */
+ s = old_suffix;
+ n = saved_after;
+ saved_after = saved_before = NULL;
+ }
+ }
+
+ /* Found it! Now generate the new name */
+ prefix = strndupa(name, saved_before - name);
+
+ r = dns_name_concat(prefix, new_suffix, ret);
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
+int dns_name_between(const char *a, const char *b, const char *c) {
+ int n;
+
+ /* Determine if b is strictly greater than a and strictly smaller than c.
+ We consider the order of names to be circular, so that if a is
+ strictly greater than c, we consider b to be between them if it is
+ either greater than a or smaller than c. This is how the canonical
+ DNS name order used in NSEC records work. */
+
+ n = dns_name_compare_func(a, c);
+ if (n == 0)
+ return -EINVAL;
+ else if (n < 0)
+ /* a<---b--->c */
+ return dns_name_compare_func(a, b) < 0 &&
+ dns_name_compare_func(b, c) < 0;
+ else
+ /* <--b--c a--b--> */
+ return dns_name_compare_func(b, c) < 0 ||
+ dns_name_compare_func(a, b) < 0;
+}
+
+int dns_name_reverse(int family, const union in_addr_union *a, char **ret) {
+ const uint8_t *p;
+ int r;
+
+ assert(a);
+ assert(ret);
+
+ p = (const uint8_t*) a;
+
+ if (family == AF_INET)
+ r = asprintf(ret, "%u.%u.%u.%u.in-addr.arpa", p[3], p[2], p[1], p[0]);
+ else if (family == AF_INET6)
+ r = asprintf(ret, "%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.ip6.arpa",
+ hexchar(p[15] & 0xF), hexchar(p[15] >> 4), hexchar(p[14] & 0xF), hexchar(p[14] >> 4),
+ hexchar(p[13] & 0xF), hexchar(p[13] >> 4), hexchar(p[12] & 0xF), hexchar(p[12] >> 4),
+ hexchar(p[11] & 0xF), hexchar(p[11] >> 4), hexchar(p[10] & 0xF), hexchar(p[10] >> 4),
+ hexchar(p[ 9] & 0xF), hexchar(p[ 9] >> 4), hexchar(p[ 8] & 0xF), hexchar(p[ 8] >> 4),
+ hexchar(p[ 7] & 0xF), hexchar(p[ 7] >> 4), hexchar(p[ 6] & 0xF), hexchar(p[ 6] >> 4),
+ hexchar(p[ 5] & 0xF), hexchar(p[ 5] >> 4), hexchar(p[ 4] & 0xF), hexchar(p[ 4] >> 4),
+ hexchar(p[ 3] & 0xF), hexchar(p[ 3] >> 4), hexchar(p[ 2] & 0xF), hexchar(p[ 2] >> 4),
+ hexchar(p[ 1] & 0xF), hexchar(p[ 1] >> 4), hexchar(p[ 0] & 0xF), hexchar(p[ 0] >> 4));
+ else
+ return -EAFNOSUPPORT;
+ if (r < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+
+int dns_name_address(const char *p, int *family, union in_addr_union *address) {
+ int r;
+
+ assert(p);
+ assert(family);
+ assert(address);
+
+ r = dns_name_endswith(p, "in-addr.arpa");
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ uint8_t a[4];
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(a); i++) {
+ char label[DNS_LABEL_MAX+1];
+
+ r = dns_label_unescape(&p, label, sizeof(label));
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -EINVAL;
+ if (r > 3)
+ return -EINVAL;
+
+ r = safe_atou8(label, &a[i]);
+ if (r < 0)
+ return r;
+ }
+
+ r = dns_name_equal(p, "in-addr.arpa");
+ if (r <= 0)
+ return r;
+
+ *family = AF_INET;
+ address->in.s_addr = htobe32(((uint32_t) a[3] << 24) |
+ ((uint32_t) a[2] << 16) |
+ ((uint32_t) a[1] << 8) |
+ (uint32_t) a[0]);
+
+ return 1;
+ }
+
+ r = dns_name_endswith(p, "ip6.arpa");
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ struct in6_addr a;
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(a.s6_addr); i++) {
+ char label[DNS_LABEL_MAX+1];
+ int x, y;
+
+ r = dns_label_unescape(&p, label, sizeof(label));
+ if (r <= 0)
+ return r;
+ if (r != 1)
+ return -EINVAL;
+ x = unhexchar(label[0]);
+ if (x < 0)
+ return -EINVAL;
+
+ r = dns_label_unescape(&p, label, sizeof(label));
+ if (r <= 0)
+ return r;
+ if (r != 1)
+ return -EINVAL;
+ y = unhexchar(label[0]);
+ if (y < 0)
+ return -EINVAL;
+
+ a.s6_addr[ELEMENTSOF(a.s6_addr) - i - 1] = (uint8_t) y << 4 | (uint8_t) x;
+ }
+
+ r = dns_name_equal(p, "ip6.arpa");
+ if (r <= 0)
+ return r;
+
+ *family = AF_INET6;
+ address->in6 = a;
+ return 1;
+ }
+
+ return 0;
+}
+
+bool dns_name_is_root(const char *name) {
+
+ assert(name);
+
+ /* There are exactly two ways to encode the root domain name:
+ * as empty string, or with a single dot. */
+
+ return STR_IN_SET(name, "", ".");
+}
+
+bool dns_name_is_single_label(const char *name) {
+ int r;
+
+ assert(name);
+
+ r = dns_name_parent(&name);
+ if (r <= 0)
+ return false;
+
+ return dns_name_is_root(name);
+}
+
+/* Encode a domain name according to RFC 1035 Section 3.1, without compression */
+int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len, bool canonical) {
+ uint8_t *label_length, *out;
+ int r;
+
+ assert(domain);
+ assert(buffer);
+
+ out = buffer;
+
+ do {
+ /* Reserve a byte for label length */
+ if (len <= 0)
+ return -ENOBUFS;
+ len--;
+ label_length = out;
+ out++;
+
+ /* Convert and copy a single label. Note that
+ * dns_label_unescape() returns 0 when it hits the end
+ * of the domain name, which we rely on here to encode
+ * the trailing NUL byte. */
+ r = dns_label_unescape(&domain, (char *) out, len);
+ if (r < 0)
+ return r;
+
+ /* Optionally, output the name in DNSSEC canonical
+ * format, as described in RFC 4034, section 6.2. Or
+ * in other words: in lower-case. */
+ if (canonical)
+ ascii_strlower_n((char*) out, (size_t) r);
+
+ /* Fill label length, move forward */
+ *label_length = r;
+ out += r;
+ len -= r;
+
+ } while (r != 0);
+
+ /* Verify the maximum size of the encoded name. The trailing
+ * dot + NUL byte account are included this time, hence
+ * compare against DNS_HOSTNAME_MAX + 2 (which is 255) this
+ * time. */
+ if (out - buffer > DNS_HOSTNAME_MAX + 2)
+ return -EINVAL;
+
+ return out - buffer;
+}
+
+static bool srv_type_label_is_valid(const char *label, size_t n) {
+ size_t k;
+
+ assert(label);
+
+ if (n < 2) /* Label needs to be at least 2 chars long */
+ return false;
+
+ if (label[0] != '_') /* First label char needs to be underscore */
+ return false;
+
+ /* Second char must be a letter */
+ if (!(label[1] >= 'A' && label[1] <= 'Z') &&
+ !(label[1] >= 'a' && label[1] <= 'z'))
+ return false;
+
+ /* Third and further chars must be alphanumeric or a hyphen */
+ for (k = 2; k < n; k++) {
+ if (!(label[k] >= 'A' && label[k] <= 'Z') &&
+ !(label[k] >= 'a' && label[k] <= 'z') &&
+ !(label[k] >= '0' && label[k] <= '9') &&
+ label[k] != '-')
+ return false;
+ }
+
+ return true;
+}
+
+bool dns_srv_type_is_valid(const char *name) {
+ unsigned c = 0;
+ int r;
+
+ if (!name)
+ return false;
+
+ for (;;) {
+ char label[DNS_LABEL_MAX];
+
+ /* This more or less implements RFC 6335, Section 5.1 */
+
+ r = dns_label_unescape(&name, label, sizeof(label));
+ if (r < 0)
+ return false;
+ if (r == 0)
+ break;
+
+ if (c >= 2)
+ return false;
+
+ if (!srv_type_label_is_valid(label, r))
+ return false;
+
+ c++;
+ }
+
+ return c == 2; /* exactly two labels */
+}
+
+bool dns_service_name_is_valid(const char *name) {
+ size_t l;
+
+ /* This more or less implements RFC 6763, Section 4.1.1 */
+
+ if (!name)
+ return false;
+
+ if (!utf8_is_valid(name))
+ return false;
+
+ if (string_has_cc(name, NULL))
+ return false;
+
+ l = strlen(name);
+ if (l <= 0)
+ return false;
+ if (l > 63)
+ return false;
+
+ return true;
+}
+
+int dns_service_join(const char *name, const char *type, const char *domain, char **ret) {
+ char escaped[DNS_LABEL_ESCAPED_MAX];
+ _cleanup_free_ char *n = NULL;
+ int r;
+
+ assert(type);
+ assert(domain);
+ assert(ret);
+
+ if (!dns_srv_type_is_valid(type))
+ return -EINVAL;
+
+ if (!name)
+ return dns_name_concat(type, domain, ret);
+
+ if (!dns_service_name_is_valid(name))
+ return -EINVAL;
+
+ r = dns_label_escape(name, strlen(name), escaped, sizeof(escaped));
+ if (r < 0)
+ return r;
+
+ r = dns_name_concat(type, domain, &n);
+ if (r < 0)
+ return r;
+
+ return dns_name_concat(escaped, n, ret);
+}
+
+static bool dns_service_name_label_is_valid(const char *label, size_t n) {
+ char *s;
+
+ assert(label);
+
+ if (memchr(label, 0, n))
+ return false;
+
+ s = strndupa(label, n);
+ return dns_service_name_is_valid(s);
+}
+
+int dns_service_split(const char *joined, char **_name, char **_type, char **_domain) {
+ _cleanup_free_ char *name = NULL, *type = NULL, *domain = NULL;
+ const char *p = joined, *q = NULL, *d = NULL;
+ char a[DNS_LABEL_MAX], b[DNS_LABEL_MAX], c[DNS_LABEL_MAX];
+ int an, bn, cn, r;
+ unsigned x = 0;
+
+ assert(joined);
+
+ /* Get first label from the full name */
+ an = dns_label_unescape(&p, a, sizeof(a));
+ if (an < 0)
+ return an;
+
+ if (an > 0) {
+ x++;
+
+ /* If there was a first label, try to get the second one */
+ bn = dns_label_unescape(&p, b, sizeof(b));
+ if (bn < 0)
+ return bn;
+
+ if (bn > 0) {
+ x++;
+
+ /* If there was a second label, try to get the third one */
+ q = p;
+ cn = dns_label_unescape(&p, c, sizeof(c));
+ if (cn < 0)
+ return cn;
+
+ if (cn > 0)
+ x++;
+ } else
+ cn = 0;
+ } else
+ an = 0;
+
+ if (x >= 2 && srv_type_label_is_valid(b, bn)) {
+
+ if (x >= 3 && srv_type_label_is_valid(c, cn)) {
+
+ if (dns_service_name_label_is_valid(a, an)) {
+ /* OK, got <name> . <type> . <type2> . <domain> */
+
+ name = strndup(a, an);
+ if (!name)
+ return -ENOMEM;
+
+ type = strjoin(b, ".", c, NULL);
+ if (!type)
+ return -ENOMEM;
+
+ d = p;
+ goto finish;
+ }
+
+ } else if (srv_type_label_is_valid(a, an)) {
+
+ /* OK, got <type> . <type2> . <domain> */
+
+ name = NULL;
+
+ type = strjoin(a, ".", b, NULL);
+ if (!type)
+ return -ENOMEM;
+
+ d = q;
+ goto finish;
+ }
+ }
+
+ name = NULL;
+ type = NULL;
+ d = joined;
+
+finish:
+ r = dns_name_normalize(d, &domain);
+ if (r < 0)
+ return r;
+
+ if (_domain) {
+ *_domain = domain;
+ domain = NULL;
+ }
+
+ if (_type) {
+ *_type = type;
+ type = NULL;
+ }
+
+ if (_name) {
+ *_name = name;
+ name = NULL;
+ }
+
+ return 0;
+}
+
+static int dns_name_build_suffix_table(const char *name, const char*table[]) {
+ const char *p;
+ unsigned n = 0;
+ int r;
+
+ assert(name);
+ assert(table);
+
+ p = name;
+ for (;;) {
+ if (n > DNS_N_LABELS_MAX)
+ return -EINVAL;
+
+ table[n] = p;
+ r = dns_name_parent(&p);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ n++;
+ }
+
+ return (int) n;
+}
+
+int dns_name_suffix(const char *name, unsigned n_labels, const char **ret) {
+ const char* labels[DNS_N_LABELS_MAX+1];
+ int n;
+
+ assert(name);
+ assert(ret);
+
+ n = dns_name_build_suffix_table(name, labels);
+ if (n < 0)
+ return n;
+
+ if ((unsigned) n < n_labels)
+ return -EINVAL;
+
+ *ret = labels[n - n_labels];
+ return (int) (n - n_labels);
+}
+
+int dns_name_skip(const char *a, unsigned n_labels, const char **ret) {
+ int r;
+
+ assert(a);
+ assert(ret);
+
+ for (; n_labels > 0; n_labels--) {
+ r = dns_name_parent(&a);
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ *ret = "";
+ return 0;
+ }
+ }
+
+ *ret = a;
+ return 1;
+}
+
+int dns_name_count_labels(const char *name) {
+ unsigned n = 0;
+ const char *p;
+ int r;
+
+ assert(name);
+
+ p = name;
+ for (;;) {
+ r = dns_name_parent(&p);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (n >= DNS_N_LABELS_MAX)
+ return -EINVAL;
+
+ n++;
+ }
+
+ return (int) n;
+}
+
+int dns_name_equal_skip(const char *a, unsigned n_labels, const char *b) {
+ int r;
+
+ assert(a);
+ assert(b);
+
+ r = dns_name_skip(a, n_labels, &a);
+ if (r <= 0)
+ return r;
+
+ return dns_name_equal(a, b);
+}
+
+int dns_name_common_suffix(const char *a, const char *b, const char **ret) {
+ const char *a_labels[DNS_N_LABELS_MAX+1], *b_labels[DNS_N_LABELS_MAX+1];
+ int n = 0, m = 0, k = 0, r, q;
+
+ assert(a);
+ assert(b);
+ assert(ret);
+
+ /* Determines the common suffix of domain names a and b */
+
+ n = dns_name_build_suffix_table(a, a_labels);
+ if (n < 0)
+ return n;
+
+ m = dns_name_build_suffix_table(b, b_labels);
+ if (m < 0)
+ return m;
+
+ for (;;) {
+ char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX];
+ const char *x, *y;
+
+ if (k >= n || k >= m) {
+ *ret = a_labels[n - k];
+ return 0;
+ }
+
+ x = a_labels[n - 1 - k];
+ r = dns_label_unescape(&x, la, sizeof(la));
+ if (r < 0)
+ return r;
+
+ y = b_labels[m - 1 - k];
+ q = dns_label_unescape(&y, lb, sizeof(lb));
+ if (q < 0)
+ return q;
+
+ if (r != q || ascii_strcasecmp_n(la, lb, r) != 0) {
+ *ret = a_labels[n - k];
+ return 0;
+ }
+
+ k++;
+ }
+}
+
+int dns_name_apply_idna(const char *name, char **ret) {
+ _cleanup_free_ char *buf = NULL;
+ size_t n = 0, allocated = 0;
+ bool first = true;
+ int r, q;
+
+ assert(name);
+ assert(ret);
+
+ for (;;) {
+ char label[DNS_LABEL_MAX];
+
+ r = dns_label_unescape(&name, label, sizeof(label));
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ q = dns_label_apply_idna(label, r, label, sizeof(label));
+ if (q < 0)
+ return q;
+ if (q > 0)
+ r = q;
+
+ if (!GREEDY_REALLOC(buf, allocated, n + !first + DNS_LABEL_ESCAPED_MAX))
+ return -ENOMEM;
+
+ r = dns_label_escape(label, r, buf + n + !first, DNS_LABEL_ESCAPED_MAX);
+ if (r < 0)
+ return r;
+
+ if (first)
+ first = false;
+ else
+ buf[n++] = '.';
+
+ n +=r;
+ }
+
+ if (n > DNS_HOSTNAME_MAX)
+ return -EINVAL;
+
+ if (!GREEDY_REALLOC(buf, allocated, n + 1))
+ return -ENOMEM;
+
+ buf[n] = 0;
+ *ret = buf;
+ buf = NULL;
+
+ return (int) n;
+}
diff --git a/src/libsystemd-shared/src/dropin.c b/src/libsystemd-shared/src/dropin.c
new file mode 100644
index 0000000000..2fb64a7f2c
--- /dev/null
+++ b/src/libsystemd-shared/src/dropin.c
@@ -0,0 +1,251 @@
+/***
+ 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/>.
+***/
+
+#include <dirent.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/conf-files.h"
+#include "systemd-basic/escape.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio-label.h"
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/set.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-shared/dropin.h"
+
+int drop_in_file(const char *dir, const char *unit, unsigned level,
+ const char *name, char **_p, char **_q) {
+
+ _cleanup_free_ char *b = NULL;
+ char *p, *q;
+
+ char prefix[DECIMAL_STR_MAX(unsigned)];
+
+ assert(unit);
+ assert(name);
+ assert(_p);
+ assert(_q);
+
+ sprintf(prefix, "%u", level);
+
+ b = xescape(name, "/.");
+ if (!b)
+ return -ENOMEM;
+
+ if (!filename_is_valid(b))
+ return -EINVAL;
+
+ p = strjoin(dir, "/", unit, ".d", NULL);
+ if (!p)
+ return -ENOMEM;
+
+ q = strjoin(p, "/", prefix, "-", b, ".conf", NULL);
+ if (!q) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ *_p = p;
+ *_q = q;
+ return 0;
+}
+
+int write_drop_in(const char *dir, const char *unit, unsigned level,
+ const char *name, const char *data) {
+
+ _cleanup_free_ char *p = NULL, *q = NULL;
+ int r;
+
+ assert(dir);
+ assert(unit);
+ assert(name);
+ assert(data);
+
+ r = drop_in_file(dir, unit, level, name, &p, &q);
+ if (r < 0)
+ return r;
+
+ (void) mkdir_p(p, 0755);
+ return write_string_file_atomic_label(q, data);
+}
+
+int write_drop_in_format(const char *dir, const char *unit, unsigned level,
+ const char *name, const char *format, ...) {
+ _cleanup_free_ char *p = NULL;
+ va_list ap;
+ int r;
+
+ assert(dir);
+ assert(unit);
+ assert(name);
+ assert(format);
+
+ va_start(ap, format);
+ r = vasprintf(&p, format, ap);
+ va_end(ap);
+
+ if (r < 0)
+ return -ENOMEM;
+
+ return write_drop_in(dir, unit, level, name, p);
+}
+
+static int iterate_dir(
+ const char *path,
+ UnitDependency dependency,
+ dependency_consumer_t consumer,
+ void *arg,
+ char ***strv) {
+
+ _cleanup_closedir_ DIR *d = NULL;
+ int r;
+
+ assert(path);
+
+ /* The config directories are special, since the order of the
+ * drop-ins matters */
+ if (dependency < 0) {
+ r = strv_extend(strv, path);
+ if (r < 0)
+ return log_oom();
+
+ return 0;
+ }
+
+ assert(consumer);
+
+ d = opendir(path);
+ if (!d) {
+ if (errno == ENOENT)
+ return 0;
+
+ return log_error_errno(errno, "Failed to open directory %s: %m", path);
+ }
+
+ for (;;) {
+ struct dirent *de;
+ _cleanup_free_ char *f = NULL;
+
+ errno = 0;
+ de = readdir(d);
+ if (!de && errno > 0)
+ return log_error_errno(errno, "Failed to read directory %s: %m", path);
+
+ if (!de)
+ break;
+
+ if (hidden_or_backup_file(de->d_name))
+ continue;
+
+ f = strjoin(path, "/", de->d_name, NULL);
+ if (!f)
+ return log_oom();
+
+ r = consumer(dependency, de->d_name, f, arg);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int unit_file_process_dir(
+ Set *unit_path_cache,
+ const char *unit_path,
+ const char *name,
+ const char *suffix,
+ UnitDependency dependency,
+ dependency_consumer_t consumer,
+ void *arg,
+ char ***strv) {
+
+ _cleanup_free_ char *path = NULL;
+ int r;
+
+ assert(unit_path);
+ assert(name);
+ assert(suffix);
+
+ path = strjoin(unit_path, "/", name, suffix, NULL);
+ if (!path)
+ return log_oom();
+
+ if (!unit_path_cache || set_get(unit_path_cache, path))
+ (void) iterate_dir(path, dependency, consumer, arg, strv);
+
+ if (unit_name_is_valid(name, UNIT_NAME_INSTANCE)) {
+ _cleanup_free_ char *template = NULL, *p = NULL;
+ /* Also try the template dir */
+
+ r = unit_name_template(name, &template);
+ if (r < 0)
+ return log_error_errno(r, "Failed to generate template from unit name: %m");
+
+ p = strjoin(unit_path, "/", template, suffix, NULL);
+ if (!p)
+ return log_oom();
+
+ if (!unit_path_cache || set_get(unit_path_cache, p))
+ (void) iterate_dir(p, dependency, consumer, arg, strv);
+ }
+
+ return 0;
+}
+
+int unit_file_find_dropin_paths(
+ char **lookup_path,
+ Set *unit_path_cache,
+ Set *names,
+ char ***paths) {
+
+ _cleanup_strv_free_ char **strv = NULL, **ans = NULL;
+ Iterator i;
+ char *t;
+ int r;
+
+ assert(paths);
+
+ SET_FOREACH(t, names, i) {
+ char **p;
+
+ STRV_FOREACH(p, lookup_path)
+ unit_file_process_dir(unit_path_cache, *p, t, ".d", _UNIT_DEPENDENCY_INVALID, NULL, NULL, &strv);
+ }
+
+ if (strv_isempty(strv))
+ return 0;
+
+ r = conf_files_list_strv(&ans, ".conf", NULL, (const char**) strv);
+ if (r < 0)
+ return log_warning_errno(r, "Failed to get list of configuration files: %m");
+
+ *paths = ans;
+ ans = NULL;
+ return 1;
+}
diff --git a/src/libsystemd-shared/src/efivars.c b/src/libsystemd-shared/src/efivars.c
new file mode 100644
index 0000000000..5bc5870ebf
--- /dev/null
+++ b/src/libsystemd-shared/src/efivars.c
@@ -0,0 +1,715 @@
+/***
+ 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 <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <systemd/sd-id128.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/dirent-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/stdio-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-basic/util.h"
+#include "systemd-basic/virt.h"
+#include "systemd-shared/efivars.h"
+
+#ifdef ENABLE_EFI
+
+#define LOAD_OPTION_ACTIVE 0x00000001
+#define MEDIA_DEVICE_PATH 0x04
+#define MEDIA_HARDDRIVE_DP 0x01
+#define MEDIA_FILEPATH_DP 0x04
+#define SIGNATURE_TYPE_GUID 0x02
+#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02
+#define END_DEVICE_PATH_TYPE 0x7f
+#define END_ENTIRE_DEVICE_PATH_SUBTYPE 0xff
+#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001
+
+struct boot_option {
+ uint32_t attr;
+ uint16_t path_len;
+ uint16_t title[];
+} _packed_;
+
+struct drive_path {
+ uint32_t part_nr;
+ uint64_t part_start;
+ uint64_t part_size;
+ char signature[16];
+ uint8_t mbr_type;
+ uint8_t signature_type;
+} _packed_;
+
+struct device_path {
+ uint8_t type;
+ uint8_t sub_type;
+ uint16_t length;
+ union {
+ uint16_t path[0];
+ struct drive_path drive;
+ };
+} _packed_;
+
+bool is_efi_boot(void) {
+ return access("/sys/firmware/efi", F_OK) >= 0;
+}
+
+static int read_flag(const char *varname) {
+ int r;
+ _cleanup_free_ void *v = NULL;
+ size_t s;
+ uint8_t b;
+
+ r = efi_get_variable(EFI_VENDOR_GLOBAL, varname, NULL, &v, &s);
+ if (r < 0)
+ return r;
+
+ if (s != 1)
+ return -EINVAL;
+
+ b = *(uint8_t *)v;
+ r = b > 0;
+ return r;
+}
+
+bool is_efi_secure_boot(void) {
+ return read_flag("SecureBoot") > 0;
+}
+
+bool is_efi_secure_boot_setup_mode(void) {
+ return read_flag("SetupMode") > 0;
+}
+
+int efi_reboot_to_firmware_supported(void) {
+ int r;
+ size_t s;
+ uint64_t b;
+ _cleanup_free_ void *v = NULL;
+
+ if (!is_efi_boot() || detect_container() > 0)
+ return -EOPNOTSUPP;
+
+ r = efi_get_variable(EFI_VENDOR_GLOBAL, "OsIndicationsSupported", NULL, &v, &s);
+ if (r < 0)
+ return r;
+ else if (s != sizeof(uint64_t))
+ return -EINVAL;
+
+ b = *(uint64_t *)v;
+ b &= EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
+ return b > 0 ? 0 : -EOPNOTSUPP;
+}
+
+static int get_os_indications(uint64_t *os_indication) {
+ int r;
+ size_t s;
+ _cleanup_free_ void *v = NULL;
+
+ r = efi_reboot_to_firmware_supported();
+ if (r < 0)
+ return r;
+
+ r = efi_get_variable(EFI_VENDOR_GLOBAL, "OsIndications", NULL, &v, &s);
+ if (r == -ENOENT) {
+ /* Some firmware implementations that do support
+ * OsIndications and report that with
+ * OsIndicationsSupported will remove the
+ * OsIndications variable when it is unset. Let's
+ * pretend it's 0 then, to hide this implementation
+ * detail. Note that this call will return -ENOENT
+ * then only if the support for OsIndications is
+ * missing entirely, as determined by
+ * efi_reboot_to_firmware_supported() above. */
+ *os_indication = 0;
+ return 0;
+ } else if (r < 0)
+ return r;
+ else if (s != sizeof(uint64_t))
+ return -EINVAL;
+
+ *os_indication = *(uint64_t *)v;
+ return 0;
+}
+
+int efi_get_reboot_to_firmware(void) {
+ int r;
+ uint64_t b;
+
+ r = get_os_indications(&b);
+ if (r < 0)
+ return r;
+
+ return !!(b & EFI_OS_INDICATIONS_BOOT_TO_FW_UI);
+}
+
+int efi_set_reboot_to_firmware(bool value) {
+ int r;
+ uint64_t b, b_new;
+
+ r = get_os_indications(&b);
+ if (r < 0)
+ return r;
+
+ if (value)
+ b_new = b | EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
+ else
+ b_new = b & ~EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
+
+ /* Avoid writing to efi vars store if we can due to firmware bugs. */
+ if (b != b_new)
+ return efi_set_variable(EFI_VENDOR_GLOBAL, "OsIndications", &b_new, sizeof(uint64_t));
+
+ return 0;
+}
+
+int efi_get_variable(
+ sd_id128_t vendor,
+ const char *name,
+ uint32_t *attribute,
+ void **value,
+ size_t *size) {
+
+ _cleanup_close_ int fd = -1;
+ _cleanup_free_ char *p = NULL;
+ uint32_t a;
+ ssize_t n;
+ struct stat st;
+ _cleanup_free_ void *buf = NULL;
+
+ assert(name);
+ assert(value);
+ assert(size);
+
+ if (asprintf(&p,
+ "/sys/firmware/efi/efivars/%s-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ name, SD_ID128_FORMAT_VAL(vendor)) < 0)
+ return -ENOMEM;
+
+ fd = open(p, O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ return -errno;
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+ if (st.st_size < 4)
+ return -EIO;
+ if (st.st_size > 4*1024*1024 + 4)
+ return -E2BIG;
+
+ n = read(fd, &a, sizeof(a));
+ if (n < 0)
+ return -errno;
+ if (n != sizeof(a))
+ return -EIO;
+
+ buf = malloc(st.st_size - 4 + 2);
+ if (!buf)
+ return -ENOMEM;
+
+ n = read(fd, buf, (size_t) st.st_size - 4);
+ if (n < 0)
+ return -errno;
+ if (n != (ssize_t) st.st_size - 4)
+ return -EIO;
+
+ /* Always NUL terminate (2 bytes, to protect UTF-16) */
+ ((char*) buf)[st.st_size - 4] = 0;
+ ((char*) buf)[st.st_size - 4 + 1] = 0;
+
+ *value = buf;
+ buf = NULL;
+ *size = (size_t) st.st_size - 4;
+
+ if (attribute)
+ *attribute = a;
+
+ return 0;
+}
+
+int efi_set_variable(
+ sd_id128_t vendor,
+ const char *name,
+ const void *value,
+ size_t size) {
+
+ struct var {
+ uint32_t attr;
+ char buf[];
+ } _packed_ * _cleanup_free_ buf = NULL;
+ _cleanup_free_ char *p = NULL;
+ _cleanup_close_ int fd = -1;
+
+ assert(name);
+
+ if (asprintf(&p,
+ "/sys/firmware/efi/efivars/%s-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ name, SD_ID128_FORMAT_VAL(vendor)) < 0)
+ return -ENOMEM;
+
+ if (size == 0) {
+ if (unlink(p) < 0)
+ return -errno;
+ return 0;
+ }
+
+ fd = open(p, O_WRONLY|O_CREAT|O_NOCTTY|O_CLOEXEC, 0644);
+ if (fd < 0)
+ return -errno;
+
+ buf = malloc(sizeof(uint32_t) + size);
+ if (!buf)
+ return -ENOMEM;
+
+ buf->attr = EFI_VARIABLE_NON_VOLATILE|EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS;
+ memcpy(buf->buf, value, size);
+
+ return loop_write(fd, buf, sizeof(uint32_t) + size, false);
+}
+
+int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p) {
+ _cleanup_free_ void *s = NULL;
+ size_t ss = 0;
+ int r;
+ char *x;
+
+ r = efi_get_variable(vendor, name, NULL, &s, &ss);
+ if (r < 0)
+ return r;
+
+ x = utf16_to_utf8(s, ss);
+ if (!x)
+ return -ENOMEM;
+
+ *p = x;
+ return 0;
+}
+
+static size_t utf16_size(const uint16_t *s) {
+ size_t l = 0;
+
+ while (s[l] > 0)
+ l++;
+
+ return (l+1) * sizeof(uint16_t);
+}
+
+static void efi_guid_to_id128(const void *guid, sd_id128_t *id128) {
+ struct uuid {
+ uint32_t u1;
+ uint16_t u2;
+ uint16_t u3;
+ uint8_t u4[8];
+ } _packed_;
+ const struct uuid *uuid = guid;
+
+ id128->bytes[0] = (uuid->u1 >> 24) & 0xff;
+ id128->bytes[1] = (uuid->u1 >> 16) & 0xff;
+ id128->bytes[2] = (uuid->u1 >> 8) & 0xff;
+ id128->bytes[3] = (uuid->u1) & 0xff;
+ id128->bytes[4] = (uuid->u2 >> 8) & 0xff;
+ id128->bytes[5] = (uuid->u2) & 0xff;
+ id128->bytes[6] = (uuid->u3 >> 8) & 0xff;
+ id128->bytes[7] = (uuid->u3) & 0xff;
+ memcpy(&id128->bytes[8], uuid->u4, sizeof(uuid->u4));
+}
+
+int efi_get_boot_option(
+ uint16_t id,
+ char **title,
+ sd_id128_t *part_uuid,
+ char **path,
+ bool *active) {
+
+ char boot_id[9];
+ _cleanup_free_ uint8_t *buf = NULL;
+ size_t l;
+ struct boot_option *header;
+ size_t title_size;
+ _cleanup_free_ char *s = NULL, *p = NULL;
+ sd_id128_t p_uuid = SD_ID128_NULL;
+ int r;
+
+ xsprintf(boot_id, "Boot%04X", id);
+ r = efi_get_variable(EFI_VENDOR_GLOBAL, boot_id, NULL, (void **)&buf, &l);
+ if (r < 0)
+ return r;
+ if (l < sizeof(struct boot_option))
+ return -ENOENT;
+
+ header = (struct boot_option *)buf;
+ title_size = utf16_size(header->title);
+ if (title_size > l - offsetof(struct boot_option, title))
+ return -EINVAL;
+
+ if (title) {
+ s = utf16_to_utf8(header->title, title_size);
+ if (!s)
+ return -ENOMEM;
+ }
+
+ if (header->path_len > 0) {
+ uint8_t *dbuf;
+ size_t dnext;
+
+ dbuf = buf + offsetof(struct boot_option, title) + title_size;
+ dnext = 0;
+ while (dnext < header->path_len) {
+ struct device_path *dpath;
+
+ dpath = (struct device_path *)(dbuf + dnext);
+ if (dpath->length < 4)
+ break;
+
+ /* Type 0x7F – End of Hardware Device Path, Sub-Type 0xFF – End Entire Device Path */
+ if (dpath->type == END_DEVICE_PATH_TYPE && dpath->sub_type == END_ENTIRE_DEVICE_PATH_SUBTYPE)
+ break;
+
+ dnext += dpath->length;
+
+ /* Type 0x04 – Media Device Path */
+ if (dpath->type != MEDIA_DEVICE_PATH)
+ continue;
+
+ /* Sub-Type 1 – Hard Drive */
+ if (dpath->sub_type == MEDIA_HARDDRIVE_DP) {
+ /* 0x02 – GUID Partition Table */
+ if (dpath->drive.mbr_type != MBR_TYPE_EFI_PARTITION_TABLE_HEADER)
+ continue;
+
+ /* 0x02 – GUID signature */
+ if (dpath->drive.signature_type != SIGNATURE_TYPE_GUID)
+ continue;
+
+ if (part_uuid)
+ efi_guid_to_id128(dpath->drive.signature, &p_uuid);
+ continue;
+ }
+
+ /* Sub-Type 4 – File Path */
+ if (dpath->sub_type == MEDIA_FILEPATH_DP && !p && path) {
+ p = utf16_to_utf8(dpath->path, dpath->length-4);
+ efi_tilt_backslashes(p);
+ continue;
+ }
+ }
+ }
+
+ if (title) {
+ *title = s;
+ s = NULL;
+ }
+ if (part_uuid)
+ *part_uuid = p_uuid;
+ if (path) {
+ *path = p;
+ p = NULL;
+ }
+ if (active)
+ *active = !!(header->attr & LOAD_OPTION_ACTIVE);
+
+ return 0;
+}
+
+static void to_utf16(uint16_t *dest, const char *src) {
+ int i;
+
+ for (i = 0; src[i] != '\0'; i++)
+ dest[i] = src[i];
+ dest[i] = '\0';
+}
+
+struct guid {
+ uint32_t u1;
+ uint16_t u2;
+ uint16_t u3;
+ uint8_t u4[8];
+} _packed_;
+
+static void id128_to_efi_guid(sd_id128_t id, void *guid) {
+ struct guid *uuid = guid;
+
+ uuid->u1 = id.bytes[0] << 24 | id.bytes[1] << 16 | id.bytes[2] << 8 | id.bytes[3];
+ uuid->u2 = id.bytes[4] << 8 | id.bytes[5];
+ uuid->u3 = id.bytes[6] << 8 | id.bytes[7];
+ memcpy(uuid->u4, id.bytes+8, sizeof(uuid->u4));
+}
+
+static uint16_t *tilt_slashes(uint16_t *s) {
+ uint16_t *p;
+
+ for (p = s; *p; p++)
+ if (*p == '/')
+ *p = '\\';
+
+ return s;
+}
+
+int efi_add_boot_option(uint16_t id, const char *title,
+ uint32_t part, uint64_t pstart, uint64_t psize,
+ sd_id128_t part_uuid, const char *path) {
+ char boot_id[9];
+ size_t size;
+ size_t title_len;
+ size_t path_len;
+ struct boot_option *option;
+ struct device_path *devicep;
+ _cleanup_free_ char *buf = NULL;
+
+ title_len = (strlen(title)+1) * 2;
+ path_len = (strlen(path)+1) * 2;
+
+ buf = calloc(sizeof(struct boot_option) + title_len +
+ sizeof(struct drive_path) +
+ sizeof(struct device_path) + path_len, 1);
+ if (!buf)
+ return -ENOMEM;
+
+ /* header */
+ option = (struct boot_option *)buf;
+ option->attr = LOAD_OPTION_ACTIVE;
+ option->path_len = offsetof(struct device_path, drive) + sizeof(struct drive_path) +
+ offsetof(struct device_path, path) + path_len +
+ offsetof(struct device_path, path);
+ to_utf16(option->title, title);
+ size = offsetof(struct boot_option, title) + title_len;
+
+ /* partition info */
+ devicep = (struct device_path *)(buf + size);
+ devicep->type = MEDIA_DEVICE_PATH;
+ devicep->sub_type = MEDIA_HARDDRIVE_DP;
+ devicep->length = offsetof(struct device_path, drive) + sizeof(struct drive_path);
+ devicep->drive.part_nr = part;
+ devicep->drive.part_start = pstart;
+ devicep->drive.part_size = psize;
+ devicep->drive.signature_type = SIGNATURE_TYPE_GUID;
+ devicep->drive.mbr_type = MBR_TYPE_EFI_PARTITION_TABLE_HEADER;
+ id128_to_efi_guid(part_uuid, devicep->drive.signature);
+ size += devicep->length;
+
+ /* path to loader */
+ devicep = (struct device_path *)(buf + size);
+ devicep->type = MEDIA_DEVICE_PATH;
+ devicep->sub_type = MEDIA_FILEPATH_DP;
+ devicep->length = offsetof(struct device_path, path) + path_len;
+ to_utf16(devicep->path, path);
+ tilt_slashes(devicep->path);
+ size += devicep->length;
+
+ /* end of path */
+ devicep = (struct device_path *)(buf + size);
+ devicep->type = END_DEVICE_PATH_TYPE;
+ devicep->sub_type = END_ENTIRE_DEVICE_PATH_SUBTYPE;
+ devicep->length = offsetof(struct device_path, path);
+ size += devicep->length;
+
+ xsprintf(boot_id, "Boot%04X", id);
+ return efi_set_variable(EFI_VENDOR_GLOBAL, boot_id, buf, size);
+}
+
+int efi_remove_boot_option(uint16_t id) {
+ char boot_id[9];
+
+ xsprintf(boot_id, "Boot%04X", id);
+ return efi_set_variable(EFI_VENDOR_GLOBAL, boot_id, NULL, 0);
+}
+
+int efi_get_boot_order(uint16_t **order) {
+ _cleanup_free_ void *buf = NULL;
+ size_t l;
+ int r;
+
+ r = efi_get_variable(EFI_VENDOR_GLOBAL, "BootOrder", NULL, &buf, &l);
+ if (r < 0)
+ return r;
+
+ if (l <= 0)
+ return -ENOENT;
+
+ if (l % sizeof(uint16_t) > 0 ||
+ l / sizeof(uint16_t) > INT_MAX)
+ return -EINVAL;
+
+ *order = buf;
+ buf = NULL;
+ return (int) (l / sizeof(uint16_t));
+}
+
+int efi_set_boot_order(uint16_t *order, size_t n) {
+ return efi_set_variable(EFI_VENDOR_GLOBAL, "BootOrder", order, n * sizeof(uint16_t));
+}
+
+static int boot_id_hex(const char s[4]) {
+ int i;
+ int id = 0;
+
+ for (i = 0; i < 4; i++)
+ if (s[i] >= '0' && s[i] <= '9')
+ id |= (s[i] - '0') << (3 - i) * 4;
+ else if (s[i] >= 'A' && s[i] <= 'F')
+ id |= (s[i] - 'A' + 10) << (3 - i) * 4;
+ else
+ return -EINVAL;
+
+ return id;
+}
+
+static int cmp_uint16(const void *_a, const void *_b) {
+ const uint16_t *a = _a, *b = _b;
+
+ return (int)*a - (int)*b;
+}
+
+int efi_get_boot_options(uint16_t **options) {
+ _cleanup_closedir_ DIR *dir = NULL;
+ struct dirent *de;
+ _cleanup_free_ uint16_t *list = NULL;
+ size_t alloc = 0;
+ int count = 0;
+
+ assert(options);
+
+ dir = opendir("/sys/firmware/efi/efivars/");
+ if (!dir)
+ return -errno;
+
+ FOREACH_DIRENT(de, dir, return -errno) {
+ int id;
+
+ if (strncmp(de->d_name, "Boot", 4) != 0)
+ continue;
+
+ if (strlen(de->d_name) != 45)
+ continue;
+
+ if (strcmp(de->d_name + 8, "-8be4df61-93ca-11d2-aa0d-00e098032b8c") != 0)
+ continue;
+
+ id = boot_id_hex(de->d_name + 4);
+ if (id < 0)
+ continue;
+
+ if (!GREEDY_REALLOC(list, alloc, count + 1))
+ return -ENOMEM;
+
+ list[count++] = id;
+ }
+
+ qsort_safe(list, count, sizeof(uint16_t), cmp_uint16);
+
+ *options = list;
+ list = NULL;
+ return count;
+}
+
+static int read_usec(sd_id128_t vendor, const char *name, usec_t *u) {
+ _cleanup_free_ char *j = NULL;
+ int r;
+ uint64_t x = 0;
+
+ assert(name);
+ assert(u);
+
+ r = efi_get_variable_string(EFI_VENDOR_LOADER, name, &j);
+ if (r < 0)
+ return r;
+
+ r = safe_atou64(j, &x);
+ if (r < 0)
+ return r;
+
+ *u = x;
+ return 0;
+}
+
+int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader) {
+ uint64_t x, y;
+ int r;
+
+ assert(firmware);
+ assert(loader);
+
+ r = read_usec(EFI_VENDOR_LOADER, "LoaderTimeInitUSec", &x);
+ if (r < 0)
+ return r;
+
+ r = read_usec(EFI_VENDOR_LOADER, "LoaderTimeExecUSec", &y);
+ if (r < 0)
+ return r;
+
+ if (y == 0 || y < x)
+ return -EIO;
+
+ if (y > USEC_PER_HOUR)
+ return -EIO;
+
+ *firmware = x;
+ *loader = y;
+
+ return 0;
+}
+
+int efi_loader_get_device_part_uuid(sd_id128_t *u) {
+ _cleanup_free_ char *p = NULL;
+ int r, parsed[16];
+
+ r = efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderDevicePartUUID", &p);
+ if (r < 0)
+ return r;
+
+ if (sscanf(p, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ &parsed[0], &parsed[1], &parsed[2], &parsed[3],
+ &parsed[4], &parsed[5], &parsed[6], &parsed[7],
+ &parsed[8], &parsed[9], &parsed[10], &parsed[11],
+ &parsed[12], &parsed[13], &parsed[14], &parsed[15]) != 16)
+ return -EIO;
+
+ if (u) {
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(parsed); i++)
+ u->bytes[i] = parsed[i];
+ }
+
+ return 0;
+}
+
+#endif
+
+char *efi_tilt_backslashes(char *s) {
+ char *p;
+
+ for (p = s; *p; p++)
+ if (*p == '\\')
+ *p = '/';
+
+ return s;
+}
diff --git a/src/libsystemd-shared/src/fdset.c b/src/libsystemd-shared/src/fdset.c
new file mode 100644
index 0000000000..5f89fc631f
--- /dev/null
+++ b/src/libsystemd-shared/src/fdset.c
@@ -0,0 +1,273 @@
+/***
+ 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/>.
+***/
+
+#include <alloca.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+
+#include <systemd/sd-daemon.h>
+
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/set.h"
+#include "systemd-shared/fdset.h"
+
+#define MAKE_SET(s) ((Set*) s)
+#define MAKE_FDSET(s) ((FDSet*) s)
+
+FDSet *fdset_new(void) {
+ return MAKE_FDSET(set_new(NULL));
+}
+
+int fdset_new_array(FDSet **ret, const int *fds, unsigned n_fds) {
+ unsigned i;
+ FDSet *s;
+ int r;
+
+ assert(ret);
+
+ s = fdset_new();
+ if (!s)
+ return -ENOMEM;
+
+ for (i = 0; i < n_fds; i++) {
+
+ r = fdset_put(s, fds[i]);
+ if (r < 0) {
+ set_free(MAKE_SET(s));
+ return r;
+ }
+ }
+
+ *ret = s;
+ return 0;
+}
+
+FDSet* fdset_free(FDSet *s) {
+ void *p;
+
+ while ((p = set_steal_first(MAKE_SET(s)))) {
+ /* Valgrind's fd might have ended up in this set here,
+ * due to fdset_new_fill(). We'll ignore all failures
+ * here, so that the EBADFD that valgrind will return
+ * us on close() doesn't influence us */
+
+ /* When reloading duplicates of the private bus
+ * connection fds and suchlike are closed here, which
+ * has no effect at all, since they are only
+ * duplicates. So don't be surprised about these log
+ * messages. */
+
+ log_debug("Closing left-over fd %i", PTR_TO_FD(p));
+ close_nointr(PTR_TO_FD(p));
+ }
+
+ set_free(MAKE_SET(s));
+ return NULL;
+}
+
+int fdset_put(FDSet *s, int fd) {
+ assert(s);
+ assert(fd >= 0);
+
+ return set_put(MAKE_SET(s), FD_TO_PTR(fd));
+}
+
+int fdset_put_dup(FDSet *s, int fd) {
+ int copy, r;
+
+ assert(s);
+ assert(fd >= 0);
+
+ copy = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+ if (copy < 0)
+ return -errno;
+
+ r = fdset_put(s, copy);
+ if (r < 0) {
+ safe_close(copy);
+ return r;
+ }
+
+ return copy;
+}
+
+bool fdset_contains(FDSet *s, int fd) {
+ assert(s);
+ assert(fd >= 0);
+
+ return !!set_get(MAKE_SET(s), FD_TO_PTR(fd));
+}
+
+int fdset_remove(FDSet *s, int fd) {
+ assert(s);
+ assert(fd >= 0);
+
+ return set_remove(MAKE_SET(s), FD_TO_PTR(fd)) ? fd : -ENOENT;
+}
+
+int fdset_new_fill(FDSet **_s) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+ int r = 0;
+ FDSet *s;
+
+ assert(_s);
+
+ /* Creates an fdset and fills in all currently open file
+ * descriptors. */
+
+ d = opendir("/proc/self/fd");
+ if (!d)
+ return -errno;
+
+ s = fdset_new();
+ if (!s) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ while ((de = readdir(d))) {
+ int fd = -1;
+
+ if (hidden_or_backup_file(de->d_name))
+ continue;
+
+ r = safe_atoi(de->d_name, &fd);
+ if (r < 0)
+ goto finish;
+
+ if (fd < 3)
+ continue;
+
+ if (fd == dirfd(d))
+ continue;
+
+ r = fdset_put(s, fd);
+ if (r < 0)
+ goto finish;
+ }
+
+ r = 0;
+ *_s = s;
+ s = NULL;
+
+finish:
+ /* We won't close the fds here! */
+ if (s)
+ set_free(MAKE_SET(s));
+
+ return r;
+}
+
+int fdset_cloexec(FDSet *fds, bool b) {
+ Iterator i;
+ void *p;
+ int r;
+
+ assert(fds);
+
+ SET_FOREACH(p, MAKE_SET(fds), i) {
+ r = fd_cloexec(PTR_TO_FD(p), b);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int fdset_new_listen_fds(FDSet **_s, bool unset) {
+ int n, fd, r;
+ FDSet *s;
+
+ assert(_s);
+
+ /* Creates an fdset and fills in all passed file descriptors */
+
+ s = fdset_new();
+ if (!s) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ n = sd_listen_fds(unset);
+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) {
+ r = fdset_put(s, fd);
+ if (r < 0)
+ goto fail;
+ }
+
+ *_s = s;
+ return 0;
+
+
+fail:
+ if (s)
+ set_free(MAKE_SET(s));
+
+ return r;
+}
+
+int fdset_close_others(FDSet *fds) {
+ void *e;
+ Iterator i;
+ int *a;
+ unsigned j, m;
+
+ j = 0, m = fdset_size(fds);
+ a = alloca(sizeof(int) * m);
+ SET_FOREACH(e, MAKE_SET(fds), i)
+ a[j++] = PTR_TO_FD(e);
+
+ assert(j == m);
+
+ return close_all_fds(a, j);
+}
+
+unsigned fdset_size(FDSet *fds) {
+ return set_size(MAKE_SET(fds));
+}
+
+bool fdset_isempty(FDSet *fds) {
+ return set_isempty(MAKE_SET(fds));
+}
+
+int fdset_iterate(FDSet *s, Iterator *i) {
+ void *p;
+
+ if (!set_iterate(MAKE_SET(s), i, &p))
+ return -ENOENT;
+
+ return PTR_TO_FD(p);
+}
+
+int fdset_steal_first(FDSet *fds) {
+ void *p;
+
+ p = set_steal_first(MAKE_SET(fds));
+ if (!p)
+ return -ENOENT;
+
+ return PTR_TO_FD(p);
+}
diff --git a/src/libsystemd-shared/src/fstab-util.c b/src/libsystemd-shared/src/fstab-util.c
new file mode 100644
index 0000000000..531fcb2f0e
--- /dev/null
+++ b/src/libsystemd-shared/src/fstab-util.c
@@ -0,0 +1,263 @@
+/***
+ 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 <errno.h>
+#include <mntent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/device-nodes.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mount-util.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/fstab-util.h"
+
+bool fstab_is_mount_point(const char *mount) {
+ _cleanup_endmntent_ FILE *f = NULL;
+ struct mntent *m;
+
+ f = setmntent("/etc/fstab", "r");
+ if (!f)
+ return false;
+
+ while ((m = getmntent(f)))
+ if (path_equal(m->mnt_dir, mount))
+ return true;
+
+ return false;
+}
+
+int fstab_filter_options(const char *opts, const char *names,
+ const char **namefound, char **value, char **filtered) {
+ const char *name, *n = NULL, *x;
+ _cleanup_strv_free_ char **stor = NULL;
+ _cleanup_free_ char *v = NULL, **strv = NULL;
+
+ assert(names && *names);
+
+ if (!opts)
+ goto answer;
+
+ /* If !value and !filtered, this function is not allowed to fail. */
+
+ if (!filtered) {
+ const char *word, *state;
+ size_t l;
+
+ FOREACH_WORD_SEPARATOR(word, l, opts, ",", state)
+ NULSTR_FOREACH(name, names) {
+ if (l < strlen(name))
+ continue;
+ if (!strneq(word, name, strlen(name)))
+ continue;
+
+ /* we know that the string is NUL
+ * terminated, so *x is valid */
+ x = word + strlen(name);
+ if (IN_SET(*x, '\0', '=', ',')) {
+ n = name;
+ if (value) {
+ free(v);
+ if (IN_SET(*x, '\0', ','))
+ v = NULL;
+ else {
+ assert(*x == '=');
+ x++;
+ v = strndup(x, l - strlen(name) - 1);
+ if (!v)
+ return -ENOMEM;
+ }
+ }
+ }
+ }
+ } else {
+ char **t, **s;
+
+ stor = strv_split(opts, ",");
+ if (!stor)
+ return -ENOMEM;
+ strv = memdup(stor, sizeof(char*) * (strv_length(stor) + 1));
+ if (!strv)
+ return -ENOMEM;
+
+ for (s = t = strv; *s; s++) {
+ NULSTR_FOREACH(name, names) {
+ x = startswith(*s, name);
+ if (x && IN_SET(*x, '\0', '='))
+ goto found;
+ }
+
+ *t = *s;
+ t++;
+ continue;
+ found:
+ /* Keep the last occurence found */
+ n = name;
+ if (value) {
+ free(v);
+ if (*x == '\0')
+ v = NULL;
+ else {
+ assert(*x == '=');
+ x++;
+ v = strdup(x);
+ if (!v)
+ return -ENOMEM;
+ }
+ }
+ }
+ *t = NULL;
+ }
+
+answer:
+ if (namefound)
+ *namefound = n;
+ if (filtered) {
+ char *f;
+
+ f = strv_join(strv, ",");
+ if (!f)
+ return -ENOMEM;
+
+ *filtered = f;
+ }
+ if (value) {
+ *value = v;
+ v = NULL;
+ }
+
+ return !!n;
+}
+
+int fstab_extract_values(const char *opts, const char *name, char ***values) {
+ _cleanup_strv_free_ char **optsv = NULL, **res = NULL;
+ char **s;
+
+ assert(opts);
+ assert(name);
+ assert(values);
+
+ optsv = strv_split(opts, ",");
+ if (!optsv)
+ return -ENOMEM;
+
+ STRV_FOREACH(s, optsv) {
+ char *arg;
+ int r;
+
+ arg = startswith(*s, name);
+ if (!arg || *arg != '=')
+ continue;
+ r = strv_extend(&res, arg + 1);
+ if (r < 0)
+ return r;
+ }
+
+ *values = res;
+ res = NULL;
+
+ return !!*values;
+}
+
+int fstab_find_pri(const char *options, int *ret) {
+ _cleanup_free_ char *opt = NULL;
+ int r;
+ unsigned pri;
+
+ assert(ret);
+
+ r = fstab_filter_options(options, "pri\0", NULL, &opt, NULL);
+ if (r < 0)
+ return r;
+ if (r == 0 || !opt)
+ return 0;
+
+ r = safe_atou(opt, &pri);
+ if (r < 0)
+ return r;
+
+ if ((int) pri < 0)
+ return -ERANGE;
+
+ *ret = (int) pri;
+ return 1;
+}
+
+static char *unquote(const char *s, const char* quotes) {
+ size_t l;
+ assert(s);
+
+ /* This is rather stupid, simply removes the heading and
+ * trailing quotes if there is one. Doesn't care about
+ * escaping or anything.
+ *
+ * DON'T USE THIS FOR NEW CODE ANYMORE!*/
+
+ l = strlen(s);
+ if (l < 2)
+ return strdup(s);
+
+ if (strchr(quotes, s[0]) && s[l-1] == s[0])
+ return strndup(s+1, l-2);
+
+ return strdup(s);
+}
+
+static char *tag_to_udev_node(const char *tagvalue, const char *by) {
+ _cleanup_free_ char *t = NULL, *u = NULL;
+ size_t enc_len;
+
+ u = unquote(tagvalue, QUOTES);
+ if (!u)
+ return NULL;
+
+ enc_len = strlen(u) * 4 + 1;
+ t = new(char, enc_len);
+ if (!t)
+ return NULL;
+
+ if (encode_devnode_name(u, t, enc_len) < 0)
+ return NULL;
+
+ return strjoin("/dev/disk/by-", by, "/", t, NULL);
+}
+
+char *fstab_node_to_udev_node(const char *p) {
+ assert(p);
+
+ if (startswith(p, "LABEL="))
+ return tag_to_udev_node(p+6, "label");
+
+ if (startswith(p, "UUID="))
+ return tag_to_udev_node(p+5, "uuid");
+
+ if (startswith(p, "PARTUUID="))
+ return tag_to_udev_node(p+9, "partuuid");
+
+ if (startswith(p, "PARTLABEL="))
+ return tag_to_udev_node(p+10, "partlabel");
+
+ return strdup(p);
+}
diff --git a/src/libsystemd-shared/src/generator.c b/src/libsystemd-shared/src/generator.c
new file mode 100644
index 0000000000..c720094cde
--- /dev/null
+++ b/src/libsystemd-shared/src/generator.c
@@ -0,0 +1,207 @@
+/***
+ 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 <errno.h>
+#include <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/escape.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/special.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/dropin.h"
+#include "systemd-shared/fstab-util.h"
+#include "systemd-shared/generator.h"
+
+static int write_fsck_sysroot_service(const char *dir, const char *what) {
+ _cleanup_free_ char *device = NULL, *escaped = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *unit;
+ int r;
+
+ escaped = cescape(what);
+ if (!escaped)
+ return log_oom();
+
+ unit = strjoina(dir, "/systemd-fsck-root.service");
+ log_debug("Creating %s", unit);
+
+ r = unit_name_from_path(what, ".device", &device);
+ if (r < 0)
+ return log_error_errno(r, "Failed to convert device \"%s\" to unit name: %m", what);
+
+ f = fopen(unit, "wxe");
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
+
+ fprintf(f,
+ "# Automatically generated by %1$s\n\n"
+ "[Unit]\n"
+ "Documentation=man:systemd-fsck-root.service(8)\n"
+ "Description=File System Check on %2$s\n"
+ "DefaultDependencies=no\n"
+ "BindsTo=%3$s\n"
+ "After=initrd-root-device.target local-fs-pre.target\n"
+ "Before=shutdown.target\n"
+ "\n"
+ "[Service]\n"
+ "Type=oneshot\n"
+ "RemainAfterExit=yes\n"
+ "ExecStart=" SYSTEMD_FSCK_PATH " %4$s\n"
+ "TimeoutSec=0\n",
+ program_invocation_short_name,
+ what,
+ device,
+ escaped);
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ return log_error_errno(r, "Failed to write unit file %s: %m", unit);
+
+ return 0;
+}
+
+int generator_write_fsck_deps(
+ FILE *f,
+ const char *dir,
+ const char *what,
+ const char *where,
+ const char *fstype) {
+
+ int r;
+
+ assert(f);
+ assert(dir);
+ assert(what);
+ assert(where);
+
+ if (!is_device_path(what)) {
+ log_warning("Checking was requested for \"%s\", but it is not a device.", what);
+ return 0;
+ }
+
+ if (!isempty(fstype) && !streq(fstype, "auto")) {
+ r = fsck_exists(fstype);
+ if (r < 0)
+ log_warning_errno(r, "Checking was requested for %s, but couldn't detect if fsck.%s may be used, proceeding: %m", what, fstype);
+ else if (r == 0) {
+ /* treat missing check as essentially OK */
+ log_debug("Checking was requested for %s, but fsck.%s does not exist.", what, fstype);
+ return 0;
+ }
+ }
+
+ if (path_equal(where, "/")) {
+ const char *lnk;
+
+ lnk = strjoina(dir, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service");
+
+ mkdir_parents(lnk, 0755);
+ if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0)
+ return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
+
+ } else {
+ _cleanup_free_ char *_fsck = NULL;
+ const char *fsck;
+
+ if (in_initrd() && path_equal(where, "/sysroot")) {
+ r = write_fsck_sysroot_service(dir, what);
+ if (r < 0)
+ return r;
+
+ fsck = "systemd-fsck-root.service";
+ } else {
+ r = unit_name_from_path_instance("systemd-fsck", what, ".service", &_fsck);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create fsck service name: %m");
+
+ fsck = _fsck;
+ }
+
+ fprintf(f,
+ "Requires=%1$s\n"
+ "After=%1$s\n",
+ fsck);
+ }
+
+ return 0;
+}
+
+int generator_write_timeouts(
+ const char *dir,
+ const char *what,
+ const char *where,
+ const char *opts,
+ char **filtered) {
+
+ /* Allow configuration how long we wait for a device that
+ * backs a mount point to show up. This is useful to support
+ * endless device timeouts for devices that show up only after
+ * user input, like crypto devices. */
+
+ _cleanup_free_ char *node = NULL, *unit = NULL, *timeout = NULL;
+ usec_t u;
+ int r;
+
+ r = fstab_filter_options(opts, "comment=systemd.device-timeout\0" "x-systemd.device-timeout\0",
+ NULL, &timeout, filtered);
+ if (r <= 0)
+ return r;
+
+ r = parse_sec(timeout, &u);
+ if (r < 0) {
+ log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout);
+ return 0;
+ }
+
+ node = fstab_node_to_udev_node(what);
+ if (!node)
+ return log_oom();
+
+ r = unit_name_from_path(node, ".device", &unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit name from path: %m");
+
+ return write_drop_in_format(dir, unit, 50, "device-timeout",
+ "# Automatically generated by %s\n\n"
+ "[Unit]\nJobTimeoutSec=%s",
+ program_invocation_short_name, timeout);
+}
+
+int generator_write_initrd_root_device_deps(const char *dir, const char *what) {
+ _cleanup_free_ char *unit = NULL;
+ int r;
+
+ r = unit_name_from_path(what, ".device", &unit);
+ if (r < 0)
+ return log_error_errno(r, "Failed to make unit name from path: %m");
+
+ return write_drop_in_format(dir, SPECIAL_INITRD_ROOT_DEVICE_TARGET, 50, "root-device",
+ "# Automatically generated by %s\n\n"
+ "[Unit]\nRequires=%s\nAfter=%s",
+ program_invocation_short_name, unit, unit);
+}
diff --git a/src/libsystemd-shared/src/ima-util.c b/src/libsystemd-shared/src/ima-util.c
new file mode 100644
index 0000000000..5b591c0c10
--- /dev/null
+++ b/src/libsystemd-shared/src/ima-util.c
@@ -0,0 +1,32 @@
+/***
+ 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 <unistd.h>
+
+#include "systemd-shared/ima-util.h"
+
+static int use_ima_cached = -1;
+
+bool use_ima(void) {
+
+ if (use_ima_cached < 0)
+ use_ima_cached = access("/sys/kernel/security/ima/", F_OK) >= 0;
+
+ return use_ima_cached;
+}
diff --git a/src/libsystemd-shared/src/import-util.c b/src/libsystemd-shared/src/import-util.c
new file mode 100644
index 0000000000..a2f701acb5
--- /dev/null
+++ b/src/libsystemd-shared/src/import-util.c
@@ -0,0 +1,185 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <string.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/btrfs-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/string-table.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/import-util.h"
+
+int import_url_last_component(const char *url, char **ret) {
+ const char *e, *p;
+ char *s;
+
+ e = strchrnul(url, '?');
+
+ while (e > url && e[-1] == '/')
+ e--;
+
+ p = e;
+ while (p > url && p[-1] != '/')
+ p--;
+
+ if (e <= p)
+ return -EINVAL;
+
+ s = strndup(p, e - p);
+ if (!s)
+ return -ENOMEM;
+
+ *ret = s;
+ return 0;
+}
+
+
+int import_url_change_last_component(const char *url, const char *suffix, char **ret) {
+ const char *e;
+ char *s;
+
+ assert(url);
+ assert(ret);
+
+ e = strchrnul(url, '?');
+
+ while (e > url && e[-1] == '/')
+ e--;
+
+ while (e > url && e[-1] != '/')
+ e--;
+
+ if (e <= url)
+ return -EINVAL;
+
+ s = new(char, (e - url) + strlen(suffix) + 1);
+ if (!s)
+ return -ENOMEM;
+
+ strcpy(mempcpy(s, url, e - url), suffix);
+ *ret = s;
+ return 0;
+}
+
+static const char* const import_verify_table[_IMPORT_VERIFY_MAX] = {
+ [IMPORT_VERIFY_NO] = "no",
+ [IMPORT_VERIFY_CHECKSUM] = "checksum",
+ [IMPORT_VERIFY_SIGNATURE] = "signature",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(import_verify, ImportVerify);
+
+int tar_strip_suffixes(const char *name, char **ret) {
+ const char *e;
+ char *s;
+
+ e = endswith(name, ".tar");
+ if (!e)
+ e = endswith(name, ".tar.xz");
+ if (!e)
+ e = endswith(name, ".tar.gz");
+ if (!e)
+ e = endswith(name, ".tar.bz2");
+ if (!e)
+ e = endswith(name, ".tgz");
+ if (!e)
+ e = strchr(name, 0);
+
+ if (e <= name)
+ return -EINVAL;
+
+ s = strndup(name, e - name);
+ if (!s)
+ return -ENOMEM;
+
+ *ret = s;
+ return 0;
+}
+
+int raw_strip_suffixes(const char *p, char **ret) {
+
+ static const char suffixes[] =
+ ".xz\0"
+ ".gz\0"
+ ".bz2\0"
+ ".raw\0"
+ ".qcow2\0"
+ ".img\0"
+ ".bin\0";
+
+ _cleanup_free_ char *q = NULL;
+
+ q = strdup(p);
+ if (!q)
+ return -ENOMEM;
+
+ for (;;) {
+ const char *sfx;
+ bool changed = false;
+
+ NULSTR_FOREACH(sfx, suffixes) {
+ char *e;
+
+ e = endswith(q, sfx);
+ if (e) {
+ *e = 0;
+ changed = true;
+ }
+ }
+
+ if (!changed)
+ break;
+ }
+
+ *ret = q;
+ q = NULL;
+
+ return 0;
+}
+
+int import_assign_pool_quota_and_warn(const char *path) {
+ int r;
+
+ r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true);
+ if (r == -ENOTTY) {
+ log_debug_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, as directory is not on btrfs or not a subvolume. Ignoring.");
+ return 0;
+ }
+ if (r < 0)
+ return log_error_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines: %m");
+ if (r > 0)
+ log_info("Set up default quota hierarchy for /var/lib/machines.");
+
+ r = btrfs_subvol_auto_qgroup(path, 0, true);
+ if (r == -ENOTTY) {
+ log_debug_errno(r, "Failed to set up quota hierarchy for %s, as directory is not on btrfs or not a subvolume. Ignoring.", path);
+ return 0;
+ }
+ if (r < 0)
+ return log_error_errno(r, "Failed to set up default quota hierarchy for %s: %m", path);
+ if (r > 0)
+ log_info("Set up default quota hierarchy for %s.", path);
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/install-printf.c b/src/libsystemd-shared/src/install-printf.c
new file mode 100644
index 0000000000..cbb92dc803
--- /dev/null
+++ b/src/libsystemd-shared/src/install-printf.c
@@ -0,0 +1,172 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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 <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "systemd-basic/formats-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-shared/install-printf.h"
+#include "systemd-shared/install.h"
+#include "systemd-shared/specifier.h"
+
+static int specifier_prefix_and_instance(char specifier, void *data, void *userdata, char **ret) {
+ const UnitFileInstallInfo *i = userdata;
+ _cleanup_free_ char *prefix = NULL;
+ int r;
+
+ assert(i);
+
+ r = unit_name_to_prefix_and_instance(i->name, &prefix);
+ if (r < 0)
+ return r;
+
+ if (endswith(prefix, "@") && i->default_instance) {
+ char *ans;
+
+ ans = strjoin(prefix, i->default_instance, NULL);
+ if (!ans)
+ return -ENOMEM;
+ *ret = ans;
+ } else {
+ *ret = prefix;
+ prefix = NULL;
+ }
+
+ return 0;
+}
+
+static int specifier_name(char specifier, void *data, void *userdata, char **ret) {
+ const UnitFileInstallInfo *i = userdata;
+ char *ans;
+
+ assert(i);
+
+ if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE) && i->default_instance)
+ return unit_name_replace_instance(i->name, i->default_instance, ret);
+
+ ans = strdup(i->name);
+ if (!ans)
+ return -ENOMEM;
+ *ret = ans;
+ return 0;
+}
+
+static int specifier_prefix(char specifier, void *data, void *userdata, char **ret) {
+ const UnitFileInstallInfo *i = userdata;
+
+ assert(i);
+
+ return unit_name_to_prefix(i->name, ret);
+}
+
+static int specifier_instance(char specifier, void *data, void *userdata, char **ret) {
+ const UnitFileInstallInfo *i = userdata;
+ char *instance;
+ int r;
+
+ assert(i);
+
+ r = unit_name_to_instance(i->name, &instance);
+ if (r < 0)
+ return r;
+
+ if (isempty(instance)) {
+ instance = strdup(i->default_instance ?: "");
+ if (!instance)
+ return -ENOMEM;
+ }
+
+ *ret = instance;
+ return 0;
+}
+
+static int specifier_user_name(char specifier, void *data, void *userdata, char **ret) {
+ char *t;
+
+ /* If we are UID 0 (root), this will not result in NSS,
+ * otherwise it might. This is good, as we want to be able to
+ * run this in PID 1, where our user ID is 0, but where NSS
+ * lookups are not allowed.
+
+ * We don't user getusername_malloc() here, because we don't want to look
+ * at $USER, to remain consistent with specifer_user_id() below.
+ */
+
+ t = uid_to_name(getuid());
+ if (!t)
+ return -ENOMEM;
+
+ *ret = t;
+ return 0;
+}
+
+static int specifier_user_id(char specifier, void *data, void *userdata, char **ret) {
+
+ if (asprintf(ret, UID_FMT, getuid()) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+
+int install_full_printf(UnitFileInstallInfo *i, const char *format, char **ret) {
+
+ /* This is similar to unit_full_printf() but does not support
+ * anything path-related.
+ *
+ * %n: the full id of the unit (foo@bar.waldo)
+ * %N: the id of the unit without the suffix (foo@bar)
+ * %p: the prefix (foo)
+ * %i: the instance (bar)
+
+ * %U the UID of the running user
+ * %u the username of running user
+ * %m the machine ID of the running system
+ * %H the host name of the running system
+ * %b the boot ID of the running system
+ * %v `uname -r` of the running system
+ */
+
+ const Specifier table[] = {
+ { 'n', specifier_name, NULL },
+ { 'N', specifier_prefix_and_instance, NULL },
+ { 'p', specifier_prefix, NULL },
+ { 'i', specifier_instance, NULL },
+
+ { 'U', specifier_user_id, NULL },
+ { 'u', specifier_user_name, NULL },
+
+ { 'm', specifier_machine_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'b', specifier_boot_id, NULL },
+ { 'v', specifier_kernel_release, NULL },
+ {}
+ };
+
+ assert(i);
+ assert(format);
+ assert(ret);
+
+ return specifier_printf(format, table, i, ret);
+}
diff --git a/src/libsystemd-shared/src/install.c b/src/libsystemd-shared/src/install.c
new file mode 100644
index 0000000000..1710a20e48
--- /dev/null
+++ b/src/libsystemd-shared/src/install.c
@@ -0,0 +1,3041 @@
+/***
+ 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 <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <limits.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/conf-files.h"
+#include "systemd-basic/dirent-util.h"
+#include "systemd-basic/extract-word.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/locale-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/rm-rf.h"
+#include "systemd-basic/set.h"
+#include "systemd-basic/special.h"
+#include "systemd-basic/stat-util.h"
+#include "systemd-basic/string-table.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-shared/conf-parser.h"
+#include "systemd-shared/install-printf.h"
+#include "systemd-shared/install.h"
+#include "systemd-shared/path-lookup.h"
+
+#define UNIT_FILE_FOLLOW_SYMLINK_MAX 64
+
+typedef enum SearchFlags {
+ SEARCH_LOAD = 1,
+ SEARCH_FOLLOW_CONFIG_SYMLINKS = 2,
+} SearchFlags;
+
+typedef struct {
+ OrderedHashmap *will_process;
+ OrderedHashmap *have_processed;
+} InstallContext;
+
+typedef enum {
+ PRESET_UNKNOWN,
+ PRESET_ENABLE,
+ PRESET_DISABLE,
+} PresetAction;
+
+typedef struct {
+ char *pattern;
+ PresetAction action;
+} PresetRule;
+
+typedef struct {
+ PresetRule *rules;
+ size_t n_rules;
+} Presets;
+
+static inline void presets_freep(Presets *p) {
+ size_t i;
+
+ if (!p)
+ return;
+
+ for (i = 0; i < p->n_rules; i++)
+ free(p->rules[i].pattern);
+
+ free(p->rules);
+ p->n_rules = 0;
+}
+
+static int unit_file_lookup_state(UnitFileScope scope, const LookupPaths *paths, const char *name, UnitFileState *ret);
+
+bool unit_type_may_alias(UnitType type) {
+ return IN_SET(type,
+ UNIT_SERVICE,
+ UNIT_SOCKET,
+ UNIT_TARGET,
+ UNIT_DEVICE,
+ UNIT_TIMER,
+ UNIT_PATH);
+}
+
+bool unit_type_may_template(UnitType type) {
+ return IN_SET(type,
+ UNIT_SERVICE,
+ UNIT_SOCKET,
+ UNIT_TARGET,
+ UNIT_TIMER,
+ UNIT_PATH);
+}
+
+static const char *unit_file_type_table[_UNIT_FILE_TYPE_MAX] = {
+ [UNIT_FILE_TYPE_REGULAR] = "regular",
+ [UNIT_FILE_TYPE_SYMLINK] = "symlink",
+ [UNIT_FILE_TYPE_MASKED] = "masked",
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(unit_file_type, UnitFileType);
+
+static int in_search_path(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
+ char **i;
+
+ assert(path);
+
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
+
+ STRV_FOREACH(i, p->search_path)
+ if (path_equal(parent, *i))
+ return true;
+
+ return false;
+}
+
+static const char* skip_root(const LookupPaths *p, const char *path) {
+ char *e;
+
+ assert(p);
+ assert(path);
+
+ if (!p->root_dir)
+ return path;
+
+ e = path_startswith(path, p->root_dir);
+ if (!e)
+ return NULL;
+
+ /* Make sure the returned path starts with a slash */
+ if (e[0] != '/') {
+ if (e == path || e[-1] != '/')
+ return NULL;
+
+ e--;
+ }
+
+ return e;
+}
+
+static int path_is_generator(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
+
+ assert(p);
+ assert(path);
+
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
+
+ return path_equal_ptr(parent, p->generator) ||
+ path_equal_ptr(parent, p->generator_early) ||
+ path_equal_ptr(parent, p->generator_late);
+}
+
+static int path_is_transient(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
+
+ assert(p);
+ assert(path);
+
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
+
+ return path_equal_ptr(parent, p->transient);
+}
+
+static int path_is_control(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
+
+ assert(p);
+ assert(path);
+
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
+
+ return path_equal_ptr(parent, p->persistent_control) ||
+ path_equal_ptr(parent, p->runtime_control);
+}
+
+static int path_is_config(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
+
+ assert(p);
+ assert(path);
+
+ /* Note that we do *not* have generic checks for /etc or /run in place, since with
+ * them we couldn't discern configuration from transient or generated units */
+
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
+
+ return path_equal_ptr(parent, p->persistent_config) ||
+ path_equal_ptr(parent, p->runtime_config);
+}
+
+static int path_is_runtime(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
+ const char *rpath;
+
+ assert(p);
+ assert(path);
+
+ /* Everything in /run is considered runtime. On top of that we also add
+ * explicit checks for the various runtime directories, as safety net. */
+
+ rpath = skip_root(p, path);
+ if (rpath && path_startswith(rpath, "/run"))
+ return true;
+
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
+
+ return path_equal_ptr(parent, p->runtime_config) ||
+ path_equal_ptr(parent, p->generator) ||
+ path_equal_ptr(parent, p->generator_early) ||
+ path_equal_ptr(parent, p->generator_late) ||
+ path_equal_ptr(parent, p->transient) ||
+ path_equal_ptr(parent, p->runtime_control);
+}
+
+static int path_is_vendor(const LookupPaths *p, const char *path) {
+ const char *rpath;
+
+ assert(p);
+ assert(path);
+
+ rpath = skip_root(p, path);
+ if (!rpath)
+ return 0;
+
+ if (path_startswith(rpath, "/usr"))
+ return true;
+
+#ifdef HAVE_SPLIT_USR
+ if (path_startswith(rpath, "/lib"))
+ return true;
+#endif
+
+ return path_equal(rpath, SYSTEM_DATA_UNIT_PATH);
+}
+
+int unit_file_changes_add(
+ UnitFileChange **changes,
+ unsigned *n_changes,
+ UnitFileChangeType type,
+ const char *path,
+ const char *source) {
+
+ _cleanup_free_ char *p = NULL, *s = NULL;
+ UnitFileChange *c;
+
+ assert(path);
+ assert(!changes == !n_changes);
+
+ if (!changes)
+ return 0;
+
+ c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange));
+ if (!c)
+ return -ENOMEM;
+ *changes = c;
+
+ p = strdup(path);
+ if (source)
+ s = strdup(source);
+
+ if (!p || (source && !s))
+ return -ENOMEM;
+
+ path_kill_slashes(p);
+ if (s)
+ path_kill_slashes(s);
+
+ c[*n_changes] = (UnitFileChange) { type, p, s };
+ p = s = NULL;
+ (*n_changes) ++;
+ return 0;
+}
+
+void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) {
+ unsigned i;
+
+ assert(changes || n_changes == 0);
+
+ for (i = 0; i < n_changes; i++) {
+ free(changes[i].path);
+ free(changes[i].source);
+ }
+
+ free(changes);
+}
+
+void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet) {
+ unsigned i;
+ bool logged = false;
+
+ assert(changes || n_changes == 0);
+ /* If verb is not specified, errors are not allowed! */
+ assert(verb || r >= 0);
+
+ for (i = 0; i < n_changes; i++) {
+ assert(verb || changes[i].type >= 0);
+
+ switch(changes[i].type) {
+ case UNIT_FILE_SYMLINK:
+ if (!quiet)
+ log_info("Created symlink %s %s %s.",
+ changes[i].path,
+ special_glyph(ARROW),
+ changes[i].source);
+ break;
+ case UNIT_FILE_UNLINK:
+ if (!quiet)
+ log_info("Removed %s.", changes[i].path);
+ break;
+ case UNIT_FILE_IS_MASKED:
+ if (!quiet)
+ log_info("Unit %s is masked, ignoring.", changes[i].path);
+ break;
+ case UNIT_FILE_IS_DANGLING:
+ if (!quiet)
+ log_info("Unit %s is an alias to a unit that is not present, ignoring.",
+ changes[i].path);
+ break;
+ case -EEXIST:
+ if (changes[i].source)
+ log_error_errno(changes[i].type,
+ "Failed to %s unit, file %s already exists and is a symlink to %s.",
+ verb, changes[i].path, changes[i].source);
+ else
+ log_error_errno(changes[i].type,
+ "Failed to %s unit, file %s already exists.",
+ verb, changes[i].path);
+ logged = true;
+ break;
+ case -ERFKILL:
+ log_error_errno(changes[i].type, "Failed to %s unit, unit %s is masked.",
+ verb, changes[i].path);
+ logged = true;
+ break;
+ case -EADDRNOTAVAIL:
+ log_error_errno(changes[i].type, "Failed to %s unit, unit %s is transient or generated.",
+ verb, changes[i].path);
+ logged = true;
+ break;
+ case -ELOOP:
+ log_error_errno(changes[i].type, "Failed to %s unit, refusing to operate on linked unit file %s",
+ verb, changes[i].path);
+ logged = true;
+ break;
+ default:
+ assert(changes[i].type < 0);
+ log_error_errno(changes[i].type, "Failed to %s unit, file %s: %m.",
+ verb, changes[i].path);
+ logged = true;
+ }
+ }
+
+ if (r < 0 && !logged)
+ log_error_errno(r, "Failed to %s: %m.", verb);
+}
+
+/**
+ * Checks if two paths or symlinks from wd are the same, when root is the root of the filesystem.
+ * wc should be the full path in the host file system.
+ */
+static bool chroot_symlinks_same(const char *root, const char *wd, const char *a, const char *b) {
+ assert(path_is_absolute(wd));
+
+ /* This will give incorrect results if the paths are relative and go outside
+ * of the chroot. False negatives are possible. */
+
+ if (!root)
+ root = "/";
+
+ a = strjoina(path_is_absolute(a) ? root : wd, "/", a);
+ b = strjoina(path_is_absolute(b) ? root : wd, "/", b);
+ return path_equal_or_files_same(a, b);
+}
+
+static int create_symlink(
+ const LookupPaths *paths,
+ const char *old_path,
+ const char *new_path,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_free_ char *dest = NULL, *dirname = NULL;
+ const char *rp;
+ int r;
+
+ assert(old_path);
+ assert(new_path);
+
+ rp = skip_root(paths, old_path);
+ if (rp)
+ old_path = rp;
+
+ /* Actually create a symlink, and remember that we did. Is
+ * smart enough to check if there's already a valid symlink in
+ * place.
+ *
+ * Returns 1 if a symlink was created or already exists and points to
+ * the right place, or negative on error.
+ */
+
+ mkdir_parents_label(new_path, 0755);
+
+ if (symlink(old_path, new_path) >= 0) {
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
+ return 1;
+ }
+
+ if (errno != EEXIST) {
+ unit_file_changes_add(changes, n_changes, -errno, new_path, NULL);
+ return -errno;
+ }
+
+ r = readlink_malloc(new_path, &dest);
+ if (r < 0) {
+ /* translate EINVAL (non-symlink exists) to EEXIST */
+ if (r == -EINVAL)
+ r = -EEXIST;
+
+ unit_file_changes_add(changes, n_changes, r, new_path, NULL);
+ return r;
+ }
+
+ dirname = dirname_malloc(new_path);
+ if (!dirname)
+ return -ENOMEM;
+
+ if (chroot_symlinks_same(paths->root_dir, dirname, dest, old_path))
+ return 1;
+
+ if (!force) {
+ unit_file_changes_add(changes, n_changes, -EEXIST, new_path, dest);
+ return -EEXIST;
+ }
+
+ r = symlink_atomic(old_path, new_path);
+ if (r < 0) {
+ unit_file_changes_add(changes, n_changes, r, new_path, NULL);
+ return r;
+ }
+
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
+
+ return 1;
+}
+
+static int mark_symlink_for_removal(
+ Set **remove_symlinks_to,
+ const char *p) {
+
+ char *n;
+ int r;
+
+ assert(p);
+
+ r = set_ensure_allocated(remove_symlinks_to, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ n = strdup(p);
+ if (!n)
+ return -ENOMEM;
+
+ path_kill_slashes(n);
+
+ r = set_consume(*remove_symlinks_to, n);
+ if (r == -EEXIST)
+ return 0;
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
+static int remove_marked_symlinks_fd(
+ Set *remove_symlinks_to,
+ int fd,
+ const char *path,
+ const char *config_path,
+ const LookupPaths *lp,
+ bool dry_run,
+ bool *restart,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+ int r = 0;
+
+ assert(remove_symlinks_to);
+ assert(fd >= 0);
+ assert(path);
+ assert(config_path);
+ assert(lp);
+ assert(restart);
+
+ d = fdopendir(fd);
+ if (!d) {
+ safe_close(fd);
+ return -errno;
+ }
+
+ rewinddir(d);
+
+ FOREACH_DIRENT(de, d, return -errno) {
+
+ dirent_ensure_type(d, de);
+
+ if (de->d_type == DT_DIR) {
+ _cleanup_free_ char *p = NULL;
+ int nfd, q;
+
+ nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
+ if (nfd < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ if (r == 0)
+ r = -errno;
+ continue;
+ }
+
+ p = path_make_absolute(de->d_name, path);
+ if (!p) {
+ safe_close(nfd);
+ return -ENOMEM;
+ }
+
+ /* This will close nfd, regardless whether it succeeds or not */
+ q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes);
+ if (q < 0 && r == 0)
+ r = q;
+
+ } else if (de->d_type == DT_LNK) {
+ _cleanup_free_ char *p = NULL, *dest = NULL;
+ const char *rp;
+ bool found;
+ int q;
+
+ if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY))
+ continue;
+
+ p = path_make_absolute(de->d_name, path);
+ if (!p)
+ return -ENOMEM;
+ path_kill_slashes(p);
+
+ q = readlink_malloc(p, &dest);
+ if (q == -ENOENT)
+ continue;
+ if (q < 0) {
+ if (r == 0)
+ r = q;
+ continue;
+ }
+
+ /* We remove all links pointing to a file or path that is marked, as well as all files sharing
+ * the same name as a file that is marked. */
+
+ found = set_contains(remove_symlinks_to, dest) ||
+ set_contains(remove_symlinks_to, basename(dest)) ||
+ set_contains(remove_symlinks_to, de->d_name);
+
+ if (!found)
+ continue;
+
+ if (!dry_run) {
+ if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) {
+ if (r == 0)
+ r = -errno;
+ unit_file_changes_add(changes, n_changes, -errno, p, NULL);
+ continue;
+ }
+
+ (void) rmdir_parents(p, config_path);
+ }
+
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL);
+
+ /* Now, remember the full path (but with the root prefix removed) of
+ * the symlink we just removed, and remove any symlinks to it, too. */
+
+ rp = skip_root(lp, p);
+ q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p);
+ if (q < 0)
+ return q;
+ if (q > 0 && !dry_run)
+ *restart = true;
+ }
+ }
+
+ return r;
+}
+
+static int remove_marked_symlinks(
+ Set *remove_symlinks_to,
+ const char *config_path,
+ const LookupPaths *lp,
+ bool dry_run,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_close_ int fd = -1;
+ bool restart;
+ int r = 0;
+
+ assert(config_path);
+ assert(lp);
+
+ if (set_size(remove_symlinks_to) <= 0)
+ return 0;
+
+ fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC);
+ if (fd < 0)
+ return errno == ENOENT ? 0 : -errno;
+
+ do {
+ int q, cfd;
+ restart = false;
+
+ cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+ if (cfd < 0)
+ return -errno;
+
+ /* This takes possession of cfd and closes it */
+ q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes);
+ if (r == 0)
+ r = q;
+ } while (restart);
+
+ return r;
+}
+
+static int find_symlinks_fd(
+ const char *root_dir,
+ const char *name,
+ int fd,
+ const char *path,
+ const char *config_path,
+ const LookupPaths *lp,
+ bool *same_name_link) {
+
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+ int r = 0;
+
+ assert(name);
+ assert(fd >= 0);
+ assert(path);
+ assert(config_path);
+ assert(lp);
+ assert(same_name_link);
+
+ d = fdopendir(fd);
+ if (!d) {
+ safe_close(fd);
+ return -errno;
+ }
+
+ FOREACH_DIRENT(de, d, return -errno) {
+
+ dirent_ensure_type(d, de);
+
+ if (de->d_type == DT_DIR) {
+ _cleanup_free_ char *p = NULL;
+ int nfd, q;
+
+ nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
+ if (nfd < 0) {
+ if (errno == ENOENT)
+ continue;
+
+ if (r == 0)
+ r = -errno;
+ continue;
+ }
+
+ p = path_make_absolute(de->d_name, path);
+ if (!p) {
+ safe_close(nfd);
+ return -ENOMEM;
+ }
+
+ /* This will close nfd, regardless whether it succeeds or not */
+ q = find_symlinks_fd(root_dir, name, nfd, p, config_path, lp, same_name_link);
+ if (q > 0)
+ return 1;
+ if (r == 0)
+ r = q;
+
+ } else if (de->d_type == DT_LNK) {
+ _cleanup_free_ char *p = NULL, *dest = NULL;
+ bool found_path, found_dest, b = false;
+ int q;
+
+ /* Acquire symlink name */
+ p = path_make_absolute(de->d_name, path);
+ if (!p)
+ return -ENOMEM;
+
+ /* Acquire symlink destination */
+ q = readlink_malloc(p, &dest);
+ if (q == -ENOENT)
+ continue;
+ if (q < 0) {
+ if (r == 0)
+ r = q;
+ continue;
+ }
+
+ /* Make absolute */
+ if (!path_is_absolute(dest)) {
+ char *x;
+
+ x = prefix_root(root_dir, dest);
+ if (!x)
+ return -ENOMEM;
+
+ free(dest);
+ dest = x;
+ }
+
+ /* Check if the symlink itself matches what we
+ * are looking for */
+ if (path_is_absolute(name))
+ found_path = path_equal(p, name);
+ else
+ found_path = streq(de->d_name, name);
+
+ /* Check if what the symlink points to
+ * matches what we are looking for */
+ if (path_is_absolute(name))
+ found_dest = path_equal(dest, name);
+ else
+ found_dest = streq(basename(dest), name);
+
+ if (found_path && found_dest) {
+ _cleanup_free_ char *t = NULL;
+
+ /* Filter out same name links in the main
+ * config path */
+ t = path_make_absolute(name, config_path);
+ if (!t)
+ return -ENOMEM;
+
+ b = path_equal(t, p);
+ }
+
+ if (b)
+ *same_name_link = true;
+ else if (found_path || found_dest)
+ return 1;
+ }
+ }
+
+ return r;
+}
+
+static int find_symlinks(
+ const char *root_dir,
+ const char *name,
+ const char *config_path,
+ const LookupPaths *lp,
+ bool *same_name_link) {
+
+ int fd;
+
+ assert(name);
+ assert(config_path);
+ assert(same_name_link);
+
+ fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC);
+ if (fd < 0) {
+ if (IN_SET(errno, ENOENT, ENOTDIR, EACCES))
+ return 0;
+ return -errno;
+ }
+
+ /* This takes possession of fd and closes it */
+ return find_symlinks_fd(root_dir, name, fd, config_path, config_path, lp, same_name_link);
+}
+
+static int find_symlinks_in_scope(
+ UnitFileScope scope,
+ const LookupPaths *paths,
+ const char *name,
+ UnitFileState *state) {
+
+ bool same_name_link_runtime = false, same_name_link = false;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(paths);
+ assert(name);
+
+ /* First look in the persistent config path */
+ r = find_symlinks(paths->root_dir, name, paths->persistent_config, paths, &same_name_link);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ *state = UNIT_FILE_ENABLED;
+ return r;
+ }
+
+ /* Then look in runtime config path */
+ r = find_symlinks(paths->root_dir, name, paths->runtime_config, paths, &same_name_link_runtime);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ *state = UNIT_FILE_ENABLED_RUNTIME;
+ return r;
+ }
+
+ /* Hmm, we didn't find it, but maybe we found the same name
+ * link? */
+ if (same_name_link) {
+ *state = UNIT_FILE_LINKED;
+ return 1;
+ }
+ if (same_name_link_runtime) {
+ *state = UNIT_FILE_LINKED_RUNTIME;
+ return 1;
+ }
+
+ return 0;
+}
+
+static void install_info_free(UnitFileInstallInfo *i) {
+
+ if (!i)
+ return;
+
+ free(i->name);
+ free(i->path);
+ strv_free(i->aliases);
+ strv_free(i->wanted_by);
+ strv_free(i->required_by);
+ strv_free(i->also);
+ free(i->default_instance);
+ free(i->symlink_target);
+ free(i);
+}
+
+static OrderedHashmap* install_info_hashmap_free(OrderedHashmap *m) {
+ UnitFileInstallInfo *i;
+
+ if (!m)
+ return NULL;
+
+ while ((i = ordered_hashmap_steal_first(m)))
+ install_info_free(i);
+
+ return ordered_hashmap_free(m);
+}
+
+static void install_context_done(InstallContext *c) {
+ assert(c);
+
+ c->will_process = install_info_hashmap_free(c->will_process);
+ c->have_processed = install_info_hashmap_free(c->have_processed);
+}
+
+static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) {
+ UnitFileInstallInfo *i;
+
+ i = ordered_hashmap_get(c->have_processed, name);
+ if (i)
+ return i;
+
+ return ordered_hashmap_get(c->will_process, name);
+}
+
+static int install_info_may_process(
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+ assert(i);
+ assert(paths);
+
+ /* Checks whether the loaded unit file is one we should process, or is masked,
+ * transient or generated and thus not subject to enable/disable operations. */
+
+ if (i->type == UNIT_FILE_TYPE_MASKED) {
+ unit_file_changes_add(changes, n_changes, -ERFKILL, i->path, NULL);
+ return -ERFKILL;
+ }
+ if (path_is_generator(paths, i->path) ||
+ path_is_transient(paths, i->path)) {
+ unit_file_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL);
+ return -EADDRNOTAVAIL;
+ }
+
+ return 0;
+}
+
+/**
+ * Adds a new UnitFileInstallInfo entry under name in the InstallContext.will_process
+ * hashmap, or retrieves the existing one if already present.
+ *
+ * Returns negative on error, 0 if the unit was already known, 1 otherwise.
+ */
+static int install_info_add(
+ InstallContext *c,
+ const char *name,
+ const char *path,
+ bool auxiliary,
+ UnitFileInstallInfo **ret) {
+
+ UnitFileInstallInfo *i = NULL;
+ int r;
+
+ assert(c);
+ assert(name || path);
+
+ if (!name)
+ name = basename(path);
+
+ if (!unit_name_is_valid(name, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ i = install_info_find(c, name);
+ if (i) {
+ i->auxiliary = i->auxiliary && auxiliary;
+
+ if (ret)
+ *ret = i;
+ return 0;
+ }
+
+ r = ordered_hashmap_ensure_allocated(&c->will_process, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ i = new0(UnitFileInstallInfo, 1);
+ if (!i)
+ return -ENOMEM;
+ i->type = _UNIT_FILE_TYPE_INVALID;
+ i->auxiliary = auxiliary;
+
+ i->name = strdup(name);
+ if (!i->name) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (path) {
+ i->path = strdup(path);
+ if (!i->path) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ r = ordered_hashmap_put(c->will_process, i->name, i);
+ if (r < 0)
+ goto fail;
+
+ if (ret)
+ *ret = i;
+
+ return 1;
+
+fail:
+ install_info_free(i);
+ return r;
+}
+
+static int config_parse_alias(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ const char *name;
+ UnitType type;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ name = basename(filename);
+ type = unit_name_to_type(name);
+ if (!unit_type_may_alias(type))
+ return log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "Alias= is not allowed for %s units, ignoring.",
+ unit_type_to_string(type));
+
+ return config_parse_strv(unit, filename, line, section, section_line,
+ lvalue, ltype, rvalue, data, userdata);
+}
+
+static int config_parse_also(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ UnitFileInstallInfo *info = userdata, *alsoinfo = NULL;
+ InstallContext *c = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL, *printed = NULL;
+
+ r = extract_first_word(&rvalue, &word, NULL, 0);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ r = install_full_printf(info, word, &printed);
+ if (r < 0)
+ return r;
+
+ if (!unit_name_is_valid(printed, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ r = install_info_add(c, printed, NULL, true, &alsoinfo);
+ if (r < 0)
+ return r;
+
+ r = strv_push(&info->also, printed);
+ if (r < 0)
+ return r;
+
+ printed = NULL;
+ }
+
+ return 0;
+}
+
+static int config_parse_default_instance(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ UnitFileInstallInfo *i = data;
+ const char *name;
+ _cleanup_free_ char *printed = NULL;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ name = basename(filename);
+ if (unit_name_is_valid(name, UNIT_NAME_INSTANCE))
+ /* When enabling an instance, we might be using a template unit file,
+ * but we should ignore DefaultInstance silently. */
+ return 0;
+ if (!unit_name_is_valid(name, UNIT_NAME_TEMPLATE))
+ return log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "DefaultInstance= only makes sense for template units, ignoring.");
+
+ r = install_full_printf(i, rvalue, &printed);
+ if (r < 0)
+ return r;
+
+ if (!unit_instance_is_valid(printed))
+ return -EINVAL;
+
+ return free_and_replace(i->default_instance, printed);
+}
+
+static int unit_file_load(
+ InstallContext *c,
+ UnitFileInstallInfo *info,
+ const char *path,
+ SearchFlags flags) {
+
+ const ConfigTableItem items[] = {
+ { "Install", "Alias", config_parse_alias, 0, &info->aliases },
+ { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by },
+ { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by },
+ { "Install", "DefaultInstance", config_parse_default_instance, 0, info },
+ { "Install", "Also", config_parse_also, 0, c },
+ {}
+ };
+
+ const char *name;
+ UnitType type;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_close_ int fd = -1;
+ struct stat st;
+ int r;
+
+ assert(info);
+ assert(path);
+
+ name = basename(path);
+ type = unit_name_to_type(name);
+ if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) &&
+ !unit_type_may_template(type))
+ return log_error_errno(EINVAL, "Unit type %s cannot be templated.", unit_type_to_string(type));
+
+ if (!(flags & SEARCH_LOAD)) {
+ r = lstat(path, &st);
+ if (r < 0)
+ return -errno;
+
+ if (null_or_empty(&st))
+ info->type = UNIT_FILE_TYPE_MASKED;
+ else if (S_ISREG(st.st_mode))
+ info->type = UNIT_FILE_TYPE_REGULAR;
+ else if (S_ISLNK(st.st_mode))
+ return -ELOOP;
+ else if (S_ISDIR(st.st_mode))
+ return -EISDIR;
+ else
+ return -ENOTTY;
+
+ return 0;
+ }
+
+ /* c is only needed if we actually load the file */
+ assert(c);
+
+ fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
+ if (fd < 0)
+ return -errno;
+ if (fstat(fd, &st) < 0)
+ return -errno;
+ if (null_or_empty(&st)) {
+ info->type = UNIT_FILE_TYPE_MASKED;
+ return 0;
+ }
+ if (S_ISDIR(st.st_mode))
+ return -EISDIR;
+ if (!S_ISREG(st.st_mode))
+ return -ENOTTY;
+
+ f = fdopen(fd, "re");
+ if (!f)
+ return -errno;
+ fd = -1;
+
+ r = config_parse(NULL, path, f,
+ NULL,
+ config_item_table_lookup, items,
+ true, true, false, info);
+ if (r < 0)
+ return log_debug_errno(r, "Failed to parse %s: %m", info->name);
+
+ info->type = UNIT_FILE_TYPE_REGULAR;
+
+ return
+ (int) strv_length(info->aliases) +
+ (int) strv_length(info->wanted_by) +
+ (int) strv_length(info->required_by);
+}
+
+static int unit_file_load_or_readlink(
+ InstallContext *c,
+ UnitFileInstallInfo *info,
+ const char *path,
+ const char *root_dir,
+ SearchFlags flags) {
+
+ _cleanup_free_ char *target = NULL;
+ int r;
+
+ r = unit_file_load(c, info, path, flags);
+ if (r != -ELOOP)
+ return r;
+
+ /* This is a symlink, let's read it. */
+
+ r = readlink_malloc(path, &target);
+ if (r < 0)
+ return r;
+
+ if (path_equal(target, "/dev/null"))
+ info->type = UNIT_FILE_TYPE_MASKED;
+ else {
+ const char *bn;
+ UnitType a, b;
+
+ bn = basename(target);
+
+ if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) {
+
+ if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN))
+ return -EINVAL;
+
+ } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) {
+
+ if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE))
+ return -EINVAL;
+
+ } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) {
+
+ if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE))
+ return -EINVAL;
+ } else
+ return -EINVAL;
+
+ /* Enforce that the symlink destination does not
+ * change the unit file type. */
+
+ a = unit_name_to_type(info->name);
+ b = unit_name_to_type(bn);
+ if (a < 0 || b < 0 || a != b)
+ return -EINVAL;
+
+ if (path_is_absolute(target))
+ /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */
+ info->symlink_target = prefix_root(root_dir, target);
+ else
+ /* This is a relative path, take it relative to the dir the symlink is located in. */
+ info->symlink_target = file_in_same_dir(path, target);
+ if (!info->symlink_target)
+ return -ENOMEM;
+
+ info->type = UNIT_FILE_TYPE_SYMLINK;
+ }
+
+ return 0;
+}
+
+static int unit_file_search(
+ InstallContext *c,
+ UnitFileInstallInfo *info,
+ const LookupPaths *paths,
+ SearchFlags flags) {
+
+ _cleanup_free_ char *template = NULL;
+ char **p;
+ int r;
+
+ assert(info);
+ assert(paths);
+
+ /* Was this unit already loaded? */
+ if (info->type != _UNIT_FILE_TYPE_INVALID)
+ return 0;
+
+ if (info->path)
+ return unit_file_load_or_readlink(c, info, info->path, paths->root_dir, flags);
+
+ assert(info->name);
+
+ STRV_FOREACH(p, paths->search_path) {
+ _cleanup_free_ char *path = NULL;
+
+ path = strjoin(*p, "/", info->name, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags);
+ if (r >= 0) {
+ info->path = path;
+ path = NULL;
+ return r;
+ } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES))
+ return r;
+ }
+
+ if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) {
+ /* Unit file doesn't exist, however instance
+ * enablement was requested. We will check if it is
+ * possible to load template unit file. */
+
+ r = unit_name_template(info->name, &template);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(p, paths->search_path) {
+ _cleanup_free_ char *path = NULL;
+
+ path = strjoin(*p, "/", template, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags);
+ if (r >= 0) {
+ info->path = path;
+ path = NULL;
+ return r;
+ } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES))
+ return r;
+ }
+ }
+
+ log_debug("Cannot find unit %s%s%s.", info->name, template ? " or " : "", strempty(template));
+ return -ENOENT;
+}
+
+static int install_info_follow(
+ InstallContext *c,
+ UnitFileInstallInfo *i,
+ const char *root_dir,
+ SearchFlags flags) {
+
+ assert(c);
+ assert(i);
+
+ if (i->type != UNIT_FILE_TYPE_SYMLINK)
+ return -EINVAL;
+ if (!i->symlink_target)
+ return -EINVAL;
+
+ /* If the basename doesn't match, the caller should add a
+ * complete new entry for this. */
+
+ if (!streq(basename(i->symlink_target), i->name))
+ return -EXDEV;
+
+ free_and_replace(i->path, i->symlink_target);
+ i->type = _UNIT_FILE_TYPE_INVALID;
+
+ return unit_file_load_or_readlink(c, i, i->path, root_dir, flags);
+}
+
+/**
+ * Search for the unit file. If the unit name is a symlink, follow the symlink to the
+ * target, maybe more than once. Propagate the instance name if present.
+ */
+static int install_info_traverse(
+ UnitFileScope scope,
+ InstallContext *c,
+ const LookupPaths *paths,
+ UnitFileInstallInfo *start,
+ SearchFlags flags,
+ UnitFileInstallInfo **ret) {
+
+ UnitFileInstallInfo *i;
+ unsigned k = 0;
+ int r;
+
+ assert(paths);
+ assert(start);
+ assert(c);
+
+ r = unit_file_search(c, start, paths, flags);
+ if (r < 0)
+ return r;
+
+ i = start;
+ while (i->type == UNIT_FILE_TYPE_SYMLINK) {
+ /* Follow the symlink */
+
+ if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX)
+ return -ELOOP;
+
+ if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) {
+ r = path_is_config(paths, i->path);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return -ELOOP;
+ }
+
+ r = install_info_follow(c, i, paths->root_dir, flags);
+ if (r == -EXDEV) {
+ _cleanup_free_ char *buffer = NULL;
+ const char *bn;
+
+ /* Target has a different name, create a new
+ * install info object for that, and continue
+ * with that. */
+
+ bn = basename(i->symlink_target);
+
+ if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) &&
+ unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) {
+
+ _cleanup_free_ char *instance = NULL;
+
+ r = unit_name_to_instance(i->name, &instance);
+ if (r < 0)
+ return r;
+
+ r = unit_name_replace_instance(bn, instance, &buffer);
+ if (r < 0)
+ return r;
+
+ bn = buffer;
+ }
+
+ r = install_info_add(c, bn, NULL, false, &i);
+ if (r < 0)
+ return r;
+
+ /* Try again, with the new target we found. */
+ r = unit_file_search(c, i, paths, flags);
+ if (r == -ENOENT)
+ /* Translate error code to highlight this specific case */
+ return -ENOLINK;
+ }
+
+ if (r < 0)
+ return r;
+ }
+
+ if (ret)
+ *ret = i;
+
+ return 0;
+}
+
+/**
+ * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/")
+ * or the name (otherwise). root_dir is prepended to the path.
+ */
+static int install_info_add_auto(
+ InstallContext *c,
+ const LookupPaths *paths,
+ const char *name_or_path,
+ UnitFileInstallInfo **ret) {
+
+ assert(c);
+ assert(name_or_path);
+
+ if (path_is_absolute(name_or_path)) {
+ const char *pp;
+
+ pp = prefix_roota(paths->root_dir, name_or_path);
+
+ return install_info_add(c, NULL, pp, false, ret);
+ } else
+ return install_info_add(c, name_or_path, NULL, false, ret);
+}
+
+static int install_info_discover(
+ UnitFileScope scope,
+ InstallContext *c,
+ const LookupPaths *paths,
+ const char *name,
+ SearchFlags flags,
+ UnitFileInstallInfo **ret,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ UnitFileInstallInfo *i;
+ int r;
+
+ assert(c);
+ assert(paths);
+ assert(name);
+
+ r = install_info_add_auto(c, paths, name, &i);
+ if (r >= 0)
+ r = install_info_traverse(scope, c, paths, i, flags, ret);
+
+ if (r < 0)
+ unit_file_changes_add(changes, n_changes, r, name, NULL);
+ return r;
+}
+
+static int install_info_symlink_alias(
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
+ const char *config_path,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ char **s;
+ int r = 0, q;
+
+ assert(i);
+ assert(paths);
+ assert(config_path);
+
+ STRV_FOREACH(s, i->aliases) {
+ _cleanup_free_ char *alias_path = NULL, *dst = NULL;
+
+ q = install_full_printf(i, *s, &dst);
+ if (q < 0)
+ return q;
+
+ alias_path = path_make_absolute(dst, config_path);
+ if (!alias_path)
+ return -ENOMEM;
+
+ q = create_symlink(paths, i->path, alias_path, force, changes, n_changes);
+ if (r == 0)
+ r = q;
+ }
+
+ return r;
+}
+
+static int install_info_symlink_wants(
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
+ const char *config_path,
+ char **list,
+ const char *suffix,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_free_ char *buf = NULL;
+ const char *n;
+ char **s;
+ int r = 0, q;
+
+ assert(i);
+ assert(paths);
+ assert(config_path);
+
+ if (strv_isempty(list))
+ return 0;
+
+ if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) {
+ UnitFileInstallInfo instance = {
+ .type = _UNIT_FILE_TYPE_INVALID,
+ };
+ _cleanup_free_ char *path = NULL;
+
+ /* Don't install any symlink if there's no default
+ * instance configured */
+
+ if (!i->default_instance)
+ return 0;
+
+ r = unit_name_replace_instance(i->name, i->default_instance, &buf);
+ if (r < 0)
+ return r;
+
+ instance.name = buf;
+ r = unit_file_search(NULL, &instance, paths, SEARCH_FOLLOW_CONFIG_SYMLINKS);
+ if (r < 0)
+ return r;
+
+ path = instance.path;
+ instance.path = NULL;
+
+ if (instance.type == UNIT_FILE_TYPE_MASKED) {
+ unit_file_changes_add(changes, n_changes, -ERFKILL, path, NULL);
+ return -ERFKILL;
+ }
+
+ n = buf;
+ } else
+ n = i->name;
+
+ STRV_FOREACH(s, list) {
+ _cleanup_free_ char *path = NULL, *dst = NULL;
+
+ q = install_full_printf(i, *s, &dst);
+ if (q < 0)
+ return q;
+
+ if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) {
+ r = -EINVAL;
+ continue;
+ }
+
+ path = strjoin(config_path, "/", dst, suffix, n, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ q = create_symlink(paths, i->path, path, true, changes, n_changes);
+ if (r == 0)
+ r = q;
+ }
+
+ return r;
+}
+
+static int install_info_symlink_link(
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
+ const char *config_path,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_free_ char *path = NULL;
+ int r;
+
+ assert(i);
+ assert(paths);
+ assert(config_path);
+ assert(i->path);
+
+ r = in_search_path(paths, i->path);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return 0;
+
+ path = strjoin(config_path, "/", i->name, NULL);
+ if (!path)
+ return -ENOMEM;
+
+ return create_symlink(paths, i->path, path, force, changes, n_changes);
+}
+
+static int install_info_apply(
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
+ const char *config_path,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ int r, q;
+
+ assert(i);
+ assert(paths);
+ assert(config_path);
+
+ if (i->type != UNIT_FILE_TYPE_REGULAR)
+ return 0;
+
+ r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes);
+
+ q = install_info_symlink_wants(i, paths, config_path, i->wanted_by, ".wants/", changes, n_changes);
+ if (r == 0)
+ r = q;
+
+ q = install_info_symlink_wants(i, paths, config_path, i->required_by, ".requires/", changes, n_changes);
+ if (r == 0)
+ r = q;
+
+ q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes);
+ /* Do not count links to the unit file towards the "carries_install_info" count */
+ if (r == 0 && q < 0)
+ r = q;
+
+ return r;
+}
+
+static int install_context_apply(
+ UnitFileScope scope,
+ InstallContext *c,
+ const LookupPaths *paths,
+ const char *config_path,
+ bool force,
+ SearchFlags flags,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ UnitFileInstallInfo *i;
+ int r;
+
+ assert(c);
+ assert(paths);
+ assert(config_path);
+
+ if (ordered_hashmap_isempty(c->will_process))
+ return 0;
+
+ r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = 0;
+ while ((i = ordered_hashmap_first(c->will_process))) {
+ int q;
+
+ q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name);
+ if (q < 0)
+ return q;
+
+ r = install_info_traverse(scope, c, paths, i, flags, NULL);
+ if (r < 0) {
+ unit_file_changes_add(changes, n_changes, r, i->name, NULL);
+ return r;
+ }
+
+ /* We can attempt to process a masked unit when a different unit
+ * that we were processing specifies it in Also=. */
+ if (i->type == UNIT_FILE_TYPE_MASKED) {
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path, NULL);
+ if (r >= 0)
+ /* Assume that something *could* have been enabled here,
+ * avoid "empty [Install] section" warning. */
+ r += 1;
+ continue;
+ }
+
+ if (i->type != UNIT_FILE_TYPE_REGULAR)
+ continue;
+
+ q = install_info_apply(i, paths, config_path, force, changes, n_changes);
+ if (r >= 0) {
+ if (q < 0)
+ r = q;
+ else
+ r += q;
+ }
+ }
+
+ return r;
+}
+
+static int install_context_mark_for_removal(
+ UnitFileScope scope,
+ InstallContext *c,
+ const LookupPaths *paths,
+ Set **remove_symlinks_to,
+ const char *config_path) {
+
+ UnitFileInstallInfo *i;
+ int r;
+
+ assert(c);
+ assert(paths);
+ assert(config_path);
+
+ /* Marks all items for removal */
+
+ if (ordered_hashmap_isempty(c->will_process))
+ return 0;
+
+ r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ while ((i = ordered_hashmap_first(c->will_process))) {
+
+ r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name);
+ if (r < 0)
+ return r;
+
+ r = install_info_traverse(scope, c, paths, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL);
+ if (r == -ENOLINK) {
+ log_debug_errno(r, "Name %s leads to a dangling symlink, ignoring.", i->name);
+ continue;
+ } else if (r == -ENOENT && i->auxiliary) {
+ /* some unit specified in Also= or similar is missing */
+ log_debug_errno(r, "Auxiliary unit %s not found, ignoring.", i->name);
+ continue;
+ } else if (r < 0)
+ return log_debug_errno(r, "Failed to find unit %s: %m", i->name);
+
+ if (i->type != UNIT_FILE_TYPE_REGULAR) {
+ log_debug("Unit %s has type %s, ignoring.",
+ i->name,
+ unit_file_type_to_string(i->type) ?: "invalid");
+ continue;
+ }
+
+ r = mark_symlink_for_removal(remove_symlinks_to, i->name);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int unit_file_mask(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ const char *config_path;
+ char **i;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ STRV_FOREACH(i, files) {
+ _cleanup_free_ char *path = NULL;
+ int q;
+
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) {
+ if (r == 0)
+ r = -EINVAL;
+ continue;
+ }
+
+ path = path_make_absolute(*i, config_path);
+ if (!path)
+ return -ENOMEM;
+
+ q = create_symlink(&paths, "/dev/null", path, !!(flags & UNIT_FILE_FORCE), changes, n_changes);
+ if (q < 0 && r >= 0)
+ r = q;
+ }
+
+ return r;
+}
+
+int unit_file_unmask(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_set_free_free_ Set *remove_symlinks_to = NULL;
+ _cleanup_free_ char **todo = NULL;
+ size_t n_todo = 0, n_allocated = 0;
+ const char *config_path;
+ char **i;
+ bool dry_run;
+ int r, q;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+ dry_run = !!(flags & UNIT_FILE_DRY_RUN);
+
+ STRV_FOREACH(i, files) {
+ _cleanup_free_ char *path = NULL;
+
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ path = path_make_absolute(*i, config_path);
+ if (!path)
+ return -ENOMEM;
+
+ r = null_or_empty_path(path);
+ if (r == -ENOENT)
+ continue;
+ if (r < 0)
+ return r;
+ if (r == 0)
+ continue;
+
+ if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2))
+ return -ENOMEM;
+
+ todo[n_todo++] = *i;
+ }
+
+ strv_uniq(todo);
+
+ r = 0;
+ STRV_FOREACH(i, todo) {
+ _cleanup_free_ char *path = NULL;
+ const char *rp;
+
+ path = path_make_absolute(*i, config_path);
+ if (!path)
+ return -ENOMEM;
+
+ if (!dry_run && unlink(path) < 0) {
+ if (errno != ENOENT) {
+ if (r >= 0)
+ r = -errno;
+ unit_file_changes_add(changes, n_changes, -errno, path, NULL);
+ }
+
+ continue;
+ }
+
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
+
+ rp = skip_root(&paths, path);
+ q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path);
+ if (q < 0)
+ return q;
+ }
+
+ q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, dry_run, changes, n_changes);
+ if (r >= 0)
+ r = q;
+
+ return r;
+}
+
+int unit_file_link(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_free_ char **todo = NULL;
+ size_t n_todo = 0, n_allocated = 0;
+ const char *config_path;
+ char **i;
+ int r, q;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ STRV_FOREACH(i, files) {
+ _cleanup_free_ char *full = NULL;
+ struct stat st;
+ char *fn;
+
+ if (!path_is_absolute(*i))
+ return -EINVAL;
+
+ fn = basename(*i);
+ if (!unit_name_is_valid(fn, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ full = prefix_root(paths.root_dir, *i);
+ if (!full)
+ return -ENOMEM;
+
+ if (lstat(full, &st) < 0)
+ return -errno;
+ if (S_ISLNK(st.st_mode))
+ return -ELOOP;
+ if (S_ISDIR(st.st_mode))
+ return -EISDIR;
+ if (!S_ISREG(st.st_mode))
+ return -ENOTTY;
+
+ q = in_search_path(&paths, *i);
+ if (q < 0)
+ return q;
+ if (q > 0)
+ continue;
+
+ if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2))
+ return -ENOMEM;
+
+ todo[n_todo++] = *i;
+ }
+
+ strv_uniq(todo);
+
+ r = 0;
+ STRV_FOREACH(i, todo) {
+ _cleanup_free_ char *new_path = NULL;
+
+ new_path = path_make_absolute(basename(*i), config_path);
+ if (!new_path)
+ return -ENOMEM;
+
+ q = create_symlink(&paths, *i, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes);
+ if (q < 0 && r >= 0)
+ r = q;
+ }
+
+ return r;
+}
+
+static int path_shall_revert(const LookupPaths *paths, const char *path) {
+ int r;
+
+ assert(paths);
+ assert(path);
+
+ /* Checks whether the path is one where the drop-in directories shall be removed. */
+
+ r = path_is_config(paths, path);
+ if (r != 0)
+ return r;
+
+ r = path_is_control(paths, path);
+ if (r != 0)
+ return r;
+
+ return path_is_transient(paths, path);
+}
+
+int unit_file_revert(
+ UnitFileScope scope,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_set_free_free_ Set *remove_symlinks_to = NULL;
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_strv_free_ char **todo = NULL;
+ size_t n_todo = 0, n_allocated = 0;
+ char **i;
+ int r, q;
+
+ /* Puts a unit file back into vendor state. This means:
+ *
+ * a) we remove all drop-in snippets added by the user ("config"), add to transient units ("transient"), and
+ * added via "systemctl set-property" ("control"), but not if the drop-in is generated ("generated").
+ *
+ * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files (i.e. in
+ * "config", but not in "transient" or "control" or even "generated").
+ *
+ * We remove all that in both the runtime and the persistent directories, if that applies.
+ */
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, files) {
+ bool has_vendor = false;
+ char **p;
+
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ STRV_FOREACH(p, paths.search_path) {
+ _cleanup_free_ char *path = NULL, *dropin = NULL;
+ struct stat st;
+
+ path = path_make_absolute(*i, *p);
+ if (!path)
+ return -ENOMEM;
+
+ r = lstat(path, &st);
+ if (r < 0) {
+ if (errno != ENOENT)
+ return -errno;
+ } else if (S_ISREG(st.st_mode)) {
+ /* Check if there's a vendor version */
+ r = path_is_vendor(&paths, path);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ has_vendor = true;
+ }
+
+ dropin = strappend(path, ".d");
+ if (!dropin)
+ return -ENOMEM;
+
+ r = lstat(dropin, &st);
+ if (r < 0) {
+ if (errno != ENOENT)
+ return -errno;
+ } else if (S_ISDIR(st.st_mode)) {
+ /* Remove the drop-ins */
+ r = path_shall_revert(&paths, dropin);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2))
+ return -ENOMEM;
+
+ todo[n_todo++] = dropin;
+ dropin = NULL;
+ }
+ }
+ }
+
+ if (!has_vendor)
+ continue;
+
+ /* OK, there's a vendor version, hence drop all configuration versions */
+ STRV_FOREACH(p, paths.search_path) {
+ _cleanup_free_ char *path = NULL;
+ struct stat st;
+
+ path = path_make_absolute(*i, *p);
+ if (!path)
+ return -ENOMEM;
+
+ r = lstat(path, &st);
+ if (r < 0) {
+ if (errno != ENOENT)
+ return -errno;
+ } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
+ r = path_is_config(&paths, path);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2))
+ return -ENOMEM;
+
+ todo[n_todo++] = path;
+ path = NULL;
+ }
+ }
+ }
+ }
+
+ strv_uniq(todo);
+
+ r = 0;
+ STRV_FOREACH(i, todo) {
+ _cleanup_strv_free_ char **fs = NULL;
+ const char *rp;
+ char **j;
+
+ (void) get_files_in_directory(*i, &fs);
+
+ q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL);
+ if (q < 0 && q != -ENOENT && r >= 0) {
+ r = q;
+ continue;
+ }
+
+ STRV_FOREACH(j, fs) {
+ _cleanup_free_ char *t = NULL;
+
+ t = strjoin(*i, "/", *j, NULL);
+ if (!t)
+ return -ENOMEM;
+
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, t, NULL);
+ }
+
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, *i, NULL);
+
+ rp = skip_root(&paths, *i);
+ q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i);
+ if (q < 0)
+ return q;
+ }
+
+ q = remove_marked_symlinks(remove_symlinks_to, paths.runtime_config, &paths, false, changes, n_changes);
+ if (r >= 0)
+ r = q;
+
+ q = remove_marked_symlinks(remove_symlinks_to, paths.persistent_config, &paths, false, changes, n_changes);
+ if (r >= 0)
+ r = q;
+
+ return r;
+}
+
+int unit_file_add_dependency(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ const char *target,
+ UnitDependency dep,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(install_context_done) InstallContext c = {};
+ UnitFileInstallInfo *i, *target_info;
+ const char *config_path;
+ char **f;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(target);
+
+ if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES))
+ return -EINVAL;
+
+ if (!unit_name_is_valid(target, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ r = install_info_discover(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &target_info, changes, n_changes);
+ if (r < 0)
+ return r;
+ r = install_info_may_process(target_info, &paths, changes, n_changes);
+ if (r < 0)
+ return r;
+
+ assert(target_info->type == UNIT_FILE_TYPE_REGULAR);
+
+ STRV_FOREACH(f, files) {
+ char ***l;
+
+ r = install_info_discover(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, changes, n_changes);
+ if (r < 0)
+ return r;
+ r = install_info_may_process(i, &paths, changes, n_changes);
+ if (r < 0)
+ return r;
+
+ assert(i->type == UNIT_FILE_TYPE_REGULAR);
+
+ /* We didn't actually load anything from the unit
+ * file, but instead just add in our new symlink to
+ * create. */
+
+ if (dep == UNIT_WANTS)
+ l = &i->wanted_by;
+ else
+ l = &i->required_by;
+
+ strv_free(*l);
+ *l = strv_new(target_info->name, NULL);
+ if (!*l)
+ return -ENOMEM;
+ }
+
+ return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes);
+}
+
+int unit_file_enable(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(install_context_done) InstallContext c = {};
+ const char *config_path;
+ UnitFileInstallInfo *i;
+ char **f;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ STRV_FOREACH(f, files) {
+ r = install_info_discover(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, changes, n_changes);
+ if (r < 0)
+ return r;
+ r = install_info_may_process(i, &paths, changes, n_changes);
+ if (r < 0)
+ return r;
+
+ assert(i->type == UNIT_FILE_TYPE_REGULAR);
+ }
+
+ /* This will return the number of symlink rules that were
+ supposed to be created, not the ones actually created. This
+ is useful to determine whether the passed files had any
+ installation data at all. */
+
+ return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_LOAD, changes, n_changes);
+}
+
+int unit_file_disable(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(install_context_done) InstallContext c = {};
+ _cleanup_set_free_free_ Set *remove_symlinks_to = NULL;
+ const char *config_path;
+ char **i;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ STRV_FOREACH(i, files) {
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ r = install_info_add(&c, *i, NULL, false, NULL);
+ if (r < 0)
+ return r;
+ }
+
+ r = install_context_mark_for_removal(scope, &c, &paths, &remove_symlinks_to, config_path);
+ if (r < 0)
+ return r;
+
+ return remove_marked_symlinks(remove_symlinks_to, config_path, &paths, !!(flags & UNIT_FILE_DRY_RUN), changes, n_changes);
+}
+
+int unit_file_reenable(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ char **n;
+ int r;
+ size_t l, i;
+
+ /* First, we invoke the disable command with only the basename... */
+ l = strv_length(files);
+ n = newa(char*, l+1);
+ for (i = 0; i < l; i++)
+ n[i] = basename(files[i]);
+ n[i] = NULL;
+
+ r = unit_file_disable(scope, flags, root_dir, n, changes, n_changes);
+ if (r < 0)
+ return r;
+
+ /* But the enable command with the full name */
+ return unit_file_enable(scope, flags, root_dir, files, changes, n_changes);
+}
+
+int unit_file_set_default(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ const char *name,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(install_context_done) InstallContext c = {};
+ UnitFileInstallInfo *i;
+ const char *new_path;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(name);
+
+ if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */
+ return -EINVAL;
+ if (streq(name, SPECIAL_DEFAULT_TARGET))
+ return -EINVAL;
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ r = install_info_discover(scope, &c, &paths, name, 0, &i, changes, n_changes);
+ if (r < 0)
+ return r;
+ r = install_info_may_process(i, &paths, changes, n_changes);
+ if (r < 0)
+ return r;
+
+ new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET);
+ return create_symlink(&paths, i->path, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes);
+}
+
+int unit_file_get_default(
+ UnitFileScope scope,
+ const char *root_dir,
+ char **name) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(install_context_done) InstallContext c = {};
+ UnitFileInstallInfo *i;
+ char *n;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(name);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ r = install_info_discover(scope, &c, &paths, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, NULL, NULL);
+ if (r < 0)
+ return r;
+ r = install_info_may_process(i, &paths, NULL, 0);
+ if (r < 0)
+ return r;
+
+ n = strdup(i->name);
+ if (!n)
+ return -ENOMEM;
+
+ *name = n;
+ return 0;
+}
+
+static int unit_file_lookup_state(
+ UnitFileScope scope,
+ const LookupPaths *paths,
+ const char *name,
+ UnitFileState *ret) {
+
+ _cleanup_(install_context_done) InstallContext c = {};
+ UnitFileInstallInfo *i;
+ UnitFileState state;
+ int r;
+
+ assert(paths);
+ assert(name);
+
+ if (!unit_name_is_valid(name, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ r = install_info_discover(scope, &c, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, NULL, NULL);
+ if (r < 0)
+ return r;
+
+ /* Shortcut things, if the caller just wants to know if this unit exists. */
+ if (!ret)
+ return 0;
+
+ switch (i->type) {
+
+ case UNIT_FILE_TYPE_MASKED:
+ r = path_is_runtime(paths, i->path);
+ if (r < 0)
+ return r;
+
+ state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED;
+ break;
+
+ case UNIT_FILE_TYPE_REGULAR:
+ r = path_is_generator(paths, i->path);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ state = UNIT_FILE_GENERATED;
+ break;
+ }
+
+ r = path_is_transient(paths, i->path);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ state = UNIT_FILE_TRANSIENT;
+ break;
+ }
+
+ r = find_symlinks_in_scope(scope, paths, i->name, &state);
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ if (UNIT_FILE_INSTALL_INFO_HAS_RULES(i))
+ state = UNIT_FILE_DISABLED;
+ else if (UNIT_FILE_INSTALL_INFO_HAS_ALSO(i))
+ state = UNIT_FILE_INDIRECT;
+ else
+ state = UNIT_FILE_STATIC;
+ }
+
+ break;
+
+ default:
+ assert_not_reached("Unexpect unit file type.");
+ }
+
+ *ret = state;
+ return 0;
+}
+
+int unit_file_get_state(
+ UnitFileScope scope,
+ const char *root_dir,
+ const char *name,
+ UnitFileState *ret) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(name);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ return unit_file_lookup_state(scope, &paths, name, ret);
+}
+
+int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name) {
+ _cleanup_(install_context_done) InstallContext c = {};
+ int r;
+
+ assert(paths);
+ assert(name);
+
+ if (!unit_name_is_valid(name, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ r = install_info_discover(scope, &c, paths, name, 0, NULL, NULL, NULL);
+ if (r == -ENOENT)
+ return 0;
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
+static int read_presets(UnitFileScope scope, const char *root_dir, Presets *presets) {
+ _cleanup_(presets_freep) Presets ps = {};
+ size_t n_allocated = 0;
+ _cleanup_strv_free_ char **files = NULL;
+ char **p;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(presets);
+
+ if (scope == UNIT_FILE_SYSTEM)
+ r = conf_files_list(&files, ".preset", root_dir,
+ "/etc/systemd/system-preset",
+ "/usr/local/lib/systemd/system-preset",
+ "/usr/lib/systemd/system-preset",
+#ifdef HAVE_SPLIT_USR
+ "/lib/systemd/system-preset",
+#endif
+ NULL);
+ else if (scope == UNIT_FILE_GLOBAL)
+ r = conf_files_list(&files, ".preset", root_dir,
+ "/etc/systemd/user-preset",
+ "/usr/local/lib/systemd/user-preset",
+ "/usr/lib/systemd/user-preset",
+ NULL);
+ else {
+ *presets = (Presets){};
+
+ return 0;
+ }
+
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(p, files) {
+ _cleanup_fclose_ FILE *f;
+ char line[LINE_MAX];
+ int n = 0;
+
+ f = fopen(*p, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ continue;
+
+ return -errno;
+ }
+
+ FOREACH_LINE(line, f, return -errno) {
+ PresetRule rule = {};
+ const char *parameter;
+ char *l;
+
+ l = strstrip(line);
+ n++;
+
+ if (isempty(l))
+ continue;
+ if (strchr(COMMENTS, *l))
+ continue;
+
+ parameter = first_word(l, "enable");
+ if (parameter) {
+ char *pattern;
+
+ pattern = strdup(parameter);
+ if (!pattern)
+ return -ENOMEM;
+
+ rule = (PresetRule) {
+ .pattern = pattern,
+ .action = PRESET_ENABLE,
+ };
+ }
+
+ parameter = first_word(l, "disable");
+ if (parameter) {
+ char *pattern;
+
+ pattern = strdup(parameter);
+ if (!pattern)
+ return -ENOMEM;
+
+ rule = (PresetRule) {
+ .pattern = pattern,
+ .action = PRESET_DISABLE,
+ };
+ }
+
+ if (rule.action) {
+ if (!GREEDY_REALLOC(ps.rules, n_allocated, ps.n_rules + 1))
+ return -ENOMEM;
+
+ ps.rules[ps.n_rules++] = rule;
+ continue;
+ }
+
+ log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line);
+ }
+ }
+
+ *presets = ps;
+ ps = (Presets){};
+
+ return 0;
+}
+
+static int query_presets(const char *name, const Presets presets) {
+ PresetAction action = PRESET_UNKNOWN;
+ size_t i;
+
+ if (!unit_name_is_valid(name, UNIT_NAME_ANY))
+ return -EINVAL;
+
+ for (i = 0; i < presets.n_rules; i++)
+ if (fnmatch(presets.rules[i].pattern, name, FNM_NOESCAPE) == 0) {
+ action = presets.rules[i].action;
+ break;
+ }
+
+ switch (action) {
+ case PRESET_UNKNOWN:
+ log_debug("Preset files don't specify rule for %s. Enabling.", name);
+ return 1;
+ case PRESET_ENABLE:
+ log_debug("Preset files say enable %s.", name);
+ return 1;
+ case PRESET_DISABLE:
+ log_debug("Preset files say disable %s.", name);
+ return 0;
+ default:
+ assert_not_reached("invalid preset action");
+ }
+}
+
+int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) {
+ _cleanup_(presets_freep) Presets presets = {};
+ int r;
+
+ r = read_presets(scope, root_dir, &presets);
+ if (r < 0)
+ return r;
+
+ return query_presets(name, presets);
+}
+
+static int execute_preset(
+ UnitFileScope scope,
+ InstallContext *plus,
+ InstallContext *minus,
+ const LookupPaths *paths,
+ const char *config_path,
+ char **files,
+ UnitFilePresetMode mode,
+ bool force,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ int r;
+
+ assert(plus);
+ assert(minus);
+ assert(paths);
+ assert(config_path);
+
+ if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) {
+ _cleanup_set_free_free_ Set *remove_symlinks_to = NULL;
+
+ r = install_context_mark_for_removal(scope, minus, paths, &remove_symlinks_to, config_path);
+ if (r < 0)
+ return r;
+
+ r = remove_marked_symlinks(remove_symlinks_to, config_path, paths, false, changes, n_changes);
+ } else
+ r = 0;
+
+ if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) {
+ int q;
+
+ /* Returns number of symlinks that where supposed to be installed. */
+ q = install_context_apply(scope, plus, paths, config_path, force, SEARCH_LOAD, changes, n_changes);
+ if (r >= 0) {
+ if (q < 0)
+ r = q;
+ else
+ r += q;
+ }
+ }
+
+ return r;
+}
+
+static int preset_prepare_one(
+ UnitFileScope scope,
+ InstallContext *plus,
+ InstallContext *minus,
+ LookupPaths *paths,
+ const char *name,
+ Presets presets,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_(install_context_done) InstallContext tmp = {};
+ UnitFileInstallInfo *i;
+ int r;
+
+ if (install_info_find(plus, name) || install_info_find(minus, name))
+ return 0;
+
+ r = install_info_discover(scope, &tmp, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, changes, n_changes);
+ if (r < 0)
+ return r;
+ if (!streq(name, i->name)) {
+ log_debug("Skipping %s because is an alias for %s", name, i->name);
+ return 0;
+ }
+
+ r = query_presets(name, presets);
+ if (r < 0)
+ return r;
+
+ if (r > 0) {
+ r = install_info_discover(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, changes, n_changes);
+ if (r < 0)
+ return r;
+
+ r = install_info_may_process(i, paths, changes, n_changes);
+ if (r < 0)
+ return r;
+ } else
+ r = install_info_discover(scope, minus, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS,
+ &i, changes, n_changes);
+
+ return r;
+}
+
+int unit_file_preset(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ char **files,
+ UnitFilePresetMode mode,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_(install_context_done) InstallContext plus = {}, minus = {};
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(presets_freep) Presets presets = {};
+ const char *config_path;
+ char **i;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(mode < _UNIT_FILE_PRESET_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ r = read_presets(scope, root_dir, &presets);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, files) {
+ r = preset_prepare_one(scope, &plus, &minus, &paths, *i, presets, changes, n_changes);
+ if (r < 0)
+ return r;
+ }
+
+ return execute_preset(scope, &plus, &minus, &paths, config_path, files, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes);
+}
+
+int unit_file_preset_all(
+ UnitFileScope scope,
+ UnitFileFlags flags,
+ const char *root_dir,
+ UnitFilePresetMode mode,
+ UnitFileChange **changes,
+ unsigned *n_changes) {
+
+ _cleanup_(install_context_done) InstallContext plus = {}, minus = {};
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ _cleanup_(presets_freep) Presets presets = {};
+ const char *config_path = NULL;
+ char **i;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(mode < _UNIT_FILE_PRESET_MAX);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config;
+
+ r = read_presets(scope, root_dir, &presets);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, paths.search_path) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+
+ d = opendir(*i);
+ if (!d) {
+ if (errno == ENOENT)
+ continue;
+
+ return -errno;
+ }
+
+ FOREACH_DIRENT(de, d, return -errno) {
+
+ if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY))
+ continue;
+
+ dirent_ensure_type(d, de);
+
+ if (!IN_SET(de->d_type, DT_LNK, DT_REG))
+ continue;
+
+ /* we don't pass changes[] in, because we want to handle errors on our own */
+ r = preset_prepare_one(scope, &plus, &minus, &paths, de->d_name, presets, NULL, 0);
+ if (r == -ERFKILL)
+ r = unit_file_changes_add(changes, n_changes,
+ UNIT_FILE_IS_MASKED, de->d_name, NULL);
+ else if (r == -ENOLINK)
+ r = unit_file_changes_add(changes, n_changes,
+ UNIT_FILE_IS_DANGLING, de->d_name, NULL);
+ if (r < 0)
+ return r;
+ }
+ }
+
+ return execute_preset(scope, &plus, &minus, &paths, config_path, NULL, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes);
+}
+
+static void unit_file_list_free_one(UnitFileList *f) {
+ if (!f)
+ return;
+
+ free(f->path);
+ free(f);
+}
+
+Hashmap* unit_file_list_free(Hashmap *h) {
+ UnitFileList *i;
+
+ while ((i = hashmap_steal_first(h)))
+ unit_file_list_free_one(i);
+
+ return hashmap_free(h);
+}
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one);
+
+int unit_file_get_list(
+ UnitFileScope scope,
+ const char *root_dir,
+ Hashmap *h,
+ char **states,
+ char **patterns) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ char **i;
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(h);
+
+ r = lookup_paths_init(&paths, scope, 0, root_dir);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, paths.search_path) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+
+ d = opendir(*i);
+ if (!d) {
+ if (errno == ENOENT)
+ continue;
+ if (IN_SET(errno, ENOTDIR, EACCES)) {
+ log_debug("Failed to open \"%s\": %m", *i);
+ continue;
+ }
+
+ return -errno;
+ }
+
+ FOREACH_DIRENT(de, d, return -errno) {
+ _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL;
+
+ if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY))
+ continue;
+
+ if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE))
+ continue;
+
+ if (hashmap_get(h, de->d_name))
+ continue;
+
+ dirent_ensure_type(d, de);
+
+ if (!IN_SET(de->d_type, DT_LNK, DT_REG))
+ continue;
+
+ f = new0(UnitFileList, 1);
+ if (!f)
+ return -ENOMEM;
+
+ f->path = path_make_absolute(de->d_name, *i);
+ if (!f->path)
+ return -ENOMEM;
+
+ r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state);
+ if (r < 0)
+ f->state = UNIT_FILE_BAD;
+
+ if (!strv_isempty(states) &&
+ !strv_contains(states, unit_file_state_to_string(f->state)))
+ continue;
+
+ r = hashmap_put(h, basename(f->path), f);
+ if (r < 0)
+ return r;
+
+ f = NULL; /* prevent cleanup */
+ }
+ }
+
+ return 0;
+}
+
+static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = {
+ [UNIT_FILE_ENABLED] = "enabled",
+ [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime",
+ [UNIT_FILE_LINKED] = "linked",
+ [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime",
+ [UNIT_FILE_MASKED] = "masked",
+ [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime",
+ [UNIT_FILE_STATIC] = "static",
+ [UNIT_FILE_DISABLED] = "disabled",
+ [UNIT_FILE_INDIRECT] = "indirect",
+ [UNIT_FILE_GENERATED] = "generated",
+ [UNIT_FILE_TRANSIENT] = "transient",
+ [UNIT_FILE_BAD] = "bad",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState);
+
+static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = {
+ [UNIT_FILE_SYMLINK] = "symlink",
+ [UNIT_FILE_UNLINK] = "unlink",
+ [UNIT_FILE_IS_MASKED] = "masked",
+ [UNIT_FILE_IS_DANGLING] = "dangling",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, UnitFileChangeType);
+
+static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = {
+ [UNIT_FILE_PRESET_FULL] = "full",
+ [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only",
+ [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode);
diff --git a/src/libsystemd-shared/src/logs-show.c b/src/libsystemd-shared/src/logs-show.c
new file mode 100644
index 0000000000..5649717af2
--- /dev/null
+++ b/src/libsystemd-shared/src/logs-show.c
@@ -0,0 +1,1351 @@
+/***
+ 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 <signal.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <syslog.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <systemd/sd-id128.h>
+#include <systemd/sd-journal.h>
+
+#include "sd-journal/journal-internal.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/formats-util.h"
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/sparse-endian.h"
+#include "systemd-basic/stdio-util.h"
+#include "systemd-basic/string-table.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/logs-show.h"
+#include "systemd-shared/output-mode.h"
+
+/* up to three lines (each up to 100 characters) or 300 characters, whichever is less */
+#define PRINT_LINE_THRESHOLD 3
+#define PRINT_CHAR_THRESHOLD 300
+
+#define JSON_THRESHOLD 4096
+
+static int print_catalog(FILE *f, sd_journal *j) {
+ int r;
+ _cleanup_free_ char *t = NULL, *z = NULL;
+
+
+ r = sd_journal_get_catalog(j, &t);
+ if (r < 0)
+ return r;
+
+ z = strreplace(strstrip(t), "\n", "\n-- ");
+ if (!z)
+ return log_oom();
+
+ fputs("-- ", f);
+ fputs(z, f);
+ fputc('\n', f);
+
+ return 0;
+}
+
+static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) {
+ size_t fl, nl;
+ char *buf;
+
+ assert(data);
+ assert(field);
+ assert(target);
+
+ fl = strlen(field);
+ if (length < fl)
+ return 0;
+
+ if (memcmp(data, field, fl))
+ return 0;
+
+ nl = length - fl;
+ buf = new(char, nl+1);
+ if (!buf)
+ return log_oom();
+
+ memcpy(buf, (const char*) data + fl, nl);
+ buf[nl] = 0;
+
+ free(*target);
+ *target = buf;
+
+ if (target_size)
+ *target_size = nl;
+
+ return 1;
+}
+
+static bool shall_print(const char *p, size_t l, OutputFlags flags) {
+ assert(p);
+
+ if (flags & OUTPUT_SHOW_ALL)
+ return true;
+
+ if (l >= PRINT_CHAR_THRESHOLD)
+ return false;
+
+ if (!utf8_is_printable(p, l))
+ return false;
+
+ return true;
+}
+
+static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) {
+ const char *color_on = "", *color_off = "";
+ const char *pos, *end;
+ bool ellipsized = false;
+ int line = 0;
+
+ if (flags & OUTPUT_COLOR) {
+ if (priority <= LOG_ERR) {
+ color_on = ANSI_HIGHLIGHT_RED;
+ color_off = ANSI_NORMAL;
+ } else if (priority <= LOG_NOTICE) {
+ color_on = ANSI_HIGHLIGHT;
+ color_off = ANSI_NORMAL;
+ }
+ }
+
+ /* A special case: make sure that we print a newline when
+ the message is empty. */
+ if (message_len == 0)
+ fputs("\n", f);
+
+ for (pos = message;
+ pos < message + message_len;
+ pos = end + 1, line++) {
+ bool continuation = line > 0;
+ bool tail_line;
+ int len;
+ for (end = pos; end < message + message_len && *end != '\n'; end++)
+ ;
+ len = end - pos;
+ assert(len >= 0);
+
+ /* We need to figure out when we are showing not-last line, *and*
+ * will skip subsequent lines. In that case, we will put the dots
+ * at the end of the line, instead of putting dots in the middle
+ * or not at all.
+ */
+ tail_line =
+ line + 1 == PRINT_LINE_THRESHOLD ||
+ end + 1 >= message + PRINT_CHAR_THRESHOLD;
+
+ if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) ||
+ (prefix + len + 1 < n_columns && !tail_line)) {
+ fprintf(f, "%*s%s%.*s%s\n",
+ continuation * prefix, "",
+ color_on, len, pos, color_off);
+ continue;
+ }
+
+ /* Beyond this point, ellipsization will happen. */
+ ellipsized = true;
+
+ if (prefix < n_columns && n_columns - prefix >= 3) {
+ if (n_columns - prefix > (unsigned) len + 3)
+ fprintf(f, "%*s%s%.*s...%s\n",
+ continuation * prefix, "",
+ color_on, len, pos, color_off);
+ else {
+ _cleanup_free_ char *e;
+
+ e = ellipsize_mem(pos, len, n_columns - prefix,
+ tail_line ? 100 : 90);
+ if (!e)
+ fprintf(f, "%*s%s%.*s%s\n",
+ continuation * prefix, "",
+ color_on, len, pos, color_off);
+ else
+ fprintf(f, "%*s%s%s%s\n",
+ continuation * prefix, "",
+ color_on, e, color_off);
+ }
+ } else
+ fputs("...\n", f);
+
+ if (tail_line)
+ break;
+ }
+
+ return ellipsized;
+}
+
+static int output_timestamp_monotonic(FILE *f, sd_journal *j, const char *monotonic) {
+ sd_id128_t boot_id;
+ uint64_t t;
+ int r;
+
+ assert(f);
+ assert(j);
+
+ r = -ENXIO;
+ if (monotonic)
+ r = safe_atou64(monotonic, &t);
+ if (r < 0)
+ r = sd_journal_get_monotonic_usec(j, &t, &boot_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get monotonic timestamp: %m");
+
+ fprintf(f, "[%5llu.%06llu]",
+ (unsigned long long) (t / USEC_PER_SEC),
+ (unsigned long long) (t % USEC_PER_SEC));
+
+ return 1 + 5 + 1 + 6 + 1;
+}
+
+static int output_timestamp_realtime(FILE *f, sd_journal *j, OutputMode mode, OutputFlags flags, const char *realtime) {
+ char buf[MAX(FORMAT_TIMESTAMP_MAX, 64)];
+ struct tm *(*gettime_r)(const time_t *, struct tm *);
+ struct tm tm;
+ uint64_t x;
+ time_t t;
+ int r;
+
+ assert(f);
+ assert(j);
+
+ r = -ENXIO;
+ if (realtime)
+ r = safe_atou64(realtime, &x);
+ if (r < 0)
+ r = sd_journal_get_realtime_usec(j, &x);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get realtime timestamp: %m");
+
+ if (mode == OUTPUT_SHORT_FULL) {
+ const char *k;
+
+ if (flags & OUTPUT_UTC)
+ k = format_timestamp_utc(buf, sizeof(buf), x);
+ else
+ k = format_timestamp(buf, sizeof(buf), x);
+ if (!k) {
+ log_error("Failed to format timestamp.");
+ return -EINVAL;
+ }
+
+ } else {
+ gettime_r = (flags & OUTPUT_UTC) ? gmtime_r : localtime_r;
+ t = (time_t) (x / USEC_PER_SEC);
+
+ switch (mode) {
+
+ case OUTPUT_SHORT_UNIX:
+ xsprintf(buf, "%10llu.%06llu", (unsigned long long) t, (unsigned long long) (x % USEC_PER_SEC));
+ break;
+
+ case OUTPUT_SHORT_ISO:
+ if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", gettime_r(&t, &tm)) <= 0) {
+ log_error("Failed for format ISO time");
+ return -EINVAL;
+ }
+ break;
+
+ case OUTPUT_SHORT:
+ case OUTPUT_SHORT_PRECISE:
+
+ if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)) <= 0) {
+ log_error("Failed to format syslog time");
+ return -EINVAL;
+ }
+
+ if (mode == OUTPUT_SHORT_PRECISE) {
+ size_t k;
+
+ assert(sizeof(buf) > strlen(buf));
+ k = sizeof(buf) - strlen(buf);
+
+ r = snprintf(buf + strlen(buf), k, ".%06llu", (unsigned long long) (x % USEC_PER_SEC));
+ if (r <= 0 || (size_t) r >= k) { /* too long? */
+ log_error("Failed to format precise time");
+ return -EINVAL;
+ }
+ }
+ break;
+
+ default:
+ assert_not_reached("Unknown time format");
+ }
+ }
+
+ fputs(buf, f);
+ return (int) strlen(buf);
+}
+
+static int output_short(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ int r;
+ const void *data;
+ size_t length;
+ size_t n = 0;
+ _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL;
+ size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0, realtime_len = 0, monotonic_len = 0, priority_len = 0;
+ int p = LOG_INFO;
+ bool ellipsized = false;
+
+ assert(f);
+ assert(j);
+
+ /* Set the threshold to one bigger than the actual print
+ * threshold, so that if the line is actually longer than what
+ * we're willing to print, ellipsization will occur. This way
+ * we won't output a misleading line without any indication of
+ * truncation.
+ */
+ sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1);
+
+ JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
+
+ r = parse_field(data, length, "PRIORITY=", &priority, &priority_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "_COMM=", &comm, &comm_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "_PID=", &pid, &pid_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ continue;
+
+ r = parse_field(data, length, "MESSAGE=", &message, &message_len);
+ if (r < 0)
+ return r;
+ }
+ if (r == -EBADMSG) {
+ log_debug_errno(r, "Skipping message we can't read: %m");
+ return 0;
+ }
+ if (r < 0)
+ return log_error_errno(r, "Failed to get journal fields: %m");
+
+ if (!message) {
+ log_debug("Skipping message without MESSAGE= field.");
+ return 0;
+ }
+
+ if (!(flags & OUTPUT_SHOW_ALL))
+ strip_tab_ansi(&message, &message_len);
+
+ if (priority_len == 1 && *priority >= '0' && *priority <= '7')
+ p = *priority - '0';
+
+ if (mode == OUTPUT_SHORT_MONOTONIC)
+ r = output_timestamp_monotonic(f, j, monotonic);
+ else
+ r = output_timestamp_realtime(f, j, mode, flags, realtime);
+ if (r < 0)
+ return r;
+ n += r;
+
+ if (flags & OUTPUT_NO_HOSTNAME) {
+ /* Suppress display of the hostname if this is requested. */
+ hostname = NULL;
+ hostname_len = 0;
+ }
+
+ if (hostname && shall_print(hostname, hostname_len, flags)) {
+ fprintf(f, " %.*s", (int) hostname_len, hostname);
+ n += hostname_len + 1;
+ }
+
+ if (identifier && shall_print(identifier, identifier_len, flags)) {
+ fprintf(f, " %.*s", (int) identifier_len, identifier);
+ n += identifier_len + 1;
+ } else if (comm && shall_print(comm, comm_len, flags)) {
+ fprintf(f, " %.*s", (int) comm_len, comm);
+ n += comm_len + 1;
+ } else
+ fputs(" unknown", f);
+
+ if (pid && shall_print(pid, pid_len, flags)) {
+ fprintf(f, "[%.*s]", (int) pid_len, pid);
+ n += pid_len + 2;
+ } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) {
+ fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid);
+ n += fake_pid_len + 2;
+ }
+
+ if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) {
+ char bytes[FORMAT_BYTES_MAX];
+ fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len));
+ } else {
+ fputs(": ", f);
+ ellipsized |=
+ print_multiline(f, n + 2, n_columns, flags, p, message, message_len);
+ }
+
+ if (flags & OUTPUT_CATALOG)
+ print_catalog(f, j);
+
+ return ellipsized;
+}
+
+static int output_verbose(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ const void *data;
+ size_t length;
+ _cleanup_free_ char *cursor = NULL;
+ uint64_t realtime = 0;
+ char ts[FORMAT_TIMESTAMP_MAX + 7];
+ int r;
+
+ assert(f);
+ assert(j);
+
+ sd_journal_set_data_threshold(j, 0);
+
+ r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length);
+ if (r == -ENOENT)
+ log_debug("Source realtime timestamp not found");
+ else if (r < 0)
+ return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get source realtime timestamp: %m");
+ else {
+ _cleanup_free_ char *value = NULL;
+
+ r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, NULL);
+ if (r < 0)
+ return r;
+ assert(r > 0);
+
+ r = safe_atou64(value, &realtime);
+ if (r < 0)
+ log_debug_errno(r, "Failed to parse realtime timestamp: %m");
+ }
+
+ if (r < 0) {
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0)
+ return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get realtime timestamp: %m");
+ }
+
+ r = sd_journal_get_cursor(j, &cursor);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get cursor: %m");
+
+ fprintf(f, "%s [%s]\n",
+ flags & OUTPUT_UTC ?
+ format_timestamp_us_utc(ts, sizeof(ts), realtime) :
+ format_timestamp_us(ts, sizeof(ts), realtime),
+ cursor);
+
+ JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
+ const char *c;
+ int fieldlen;
+ const char *on = "", *off = "";
+
+ c = memchr(data, '=', length);
+ if (!c) {
+ log_error("Invalid field.");
+ return -EINVAL;
+ }
+ fieldlen = c - (const char*) data;
+
+ if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) {
+ on = ANSI_HIGHLIGHT;
+ off = ANSI_NORMAL;
+ }
+
+ if ((flags & OUTPUT_SHOW_ALL) ||
+ (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH)
+ && utf8_is_printable(data, length))) {
+ fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data);
+ print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1);
+ fputs(off, f);
+ } else {
+ char bytes[FORMAT_BYTES_MAX];
+
+ fprintf(f, " %s%.*s=[%s blob data]%s\n",
+ on,
+ (int) (c - (const char*) data),
+ (const char*) data,
+ format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1),
+ off);
+ }
+ }
+
+ if (r < 0)
+ return r;
+
+ if (flags & OUTPUT_CATALOG)
+ print_catalog(f, j);
+
+ return 0;
+}
+
+static int output_export(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ sd_id128_t boot_id;
+ char sid[33];
+ int r;
+ usec_t realtime, monotonic;
+ _cleanup_free_ char *cursor = NULL;
+ const void *data;
+ size_t length;
+
+ assert(j);
+
+ sd_journal_set_data_threshold(j, 0);
+
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get realtime timestamp: %m");
+
+ r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get monotonic timestamp: %m");
+
+ r = sd_journal_get_cursor(j, &cursor);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get cursor: %m");
+
+ fprintf(f,
+ "__CURSOR=%s\n"
+ "__REALTIME_TIMESTAMP="USEC_FMT"\n"
+ "__MONOTONIC_TIMESTAMP="USEC_FMT"\n"
+ "_BOOT_ID=%s\n",
+ cursor,
+ realtime,
+ monotonic,
+ sd_id128_to_string(boot_id, sid));
+
+ JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
+
+ /* We already printed the boot id, from the data in
+ * the header, hence let's suppress it here */
+ if (length >= 9 &&
+ startswith(data, "_BOOT_ID="))
+ continue;
+
+ if (utf8_is_printable_newline(data, length, false))
+ fwrite(data, length, 1, f);
+ else {
+ const char *c;
+ uint64_t le64;
+
+ c = memchr(data, '=', length);
+ if (!c) {
+ log_error("Invalid field.");
+ return -EINVAL;
+ }
+
+ fwrite(data, c - (const char*) data, 1, f);
+ fputc('\n', f);
+ le64 = htole64(length - (c - (const char*) data) - 1);
+ fwrite(&le64, sizeof(le64), 1, f);
+ fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f);
+ }
+
+ fputc('\n', f);
+ }
+
+ if (r < 0)
+ return r;
+
+ fputc('\n', f);
+
+ return 0;
+}
+
+void json_escape(
+ FILE *f,
+ const char* p,
+ size_t l,
+ OutputFlags flags) {
+
+ assert(f);
+ assert(p);
+
+ if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD)
+ fputs("null", f);
+
+ else if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(p, l)) {
+ bool not_first = false;
+
+ fputs("[ ", f);
+
+ while (l > 0) {
+ if (not_first)
+ fprintf(f, ", %u", (uint8_t) *p);
+ else {
+ not_first = true;
+ fprintf(f, "%u", (uint8_t) *p);
+ }
+
+ p++;
+ l--;
+ }
+
+ fputs(" ]", f);
+ } else {
+ fputc('\"', f);
+
+ while (l > 0) {
+ if (*p == '"' || *p == '\\') {
+ fputc('\\', f);
+ fputc(*p, f);
+ } else if (*p == '\n')
+ fputs("\\n", f);
+ else if ((uint8_t) *p < ' ')
+ fprintf(f, "\\u%04x", (uint8_t) *p);
+ else
+ fputc(*p, f);
+
+ p++;
+ l--;
+ }
+
+ fputc('\"', f);
+ }
+}
+
+static int output_json(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ uint64_t realtime, monotonic;
+ _cleanup_free_ char *cursor = NULL;
+ const void *data;
+ size_t length;
+ sd_id128_t boot_id;
+ char sid[33], *k;
+ int r;
+ Hashmap *h = NULL;
+ bool done, separator;
+
+ assert(j);
+
+ sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD);
+
+ r = sd_journal_get_realtime_usec(j, &realtime);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get realtime timestamp: %m");
+
+ r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get monotonic timestamp: %m");
+
+ r = sd_journal_get_cursor(j, &cursor);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get cursor: %m");
+
+ if (mode == OUTPUT_JSON_PRETTY)
+ fprintf(f,
+ "{\n"
+ "\t\"__CURSOR\" : \"%s\",\n"
+ "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n"
+ "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n"
+ "\t\"_BOOT_ID\" : \"%s\"",
+ cursor,
+ realtime,
+ monotonic,
+ sd_id128_to_string(boot_id, sid));
+ else {
+ if (mode == OUTPUT_JSON_SSE)
+ fputs("data: ", f);
+
+ fprintf(f,
+ "{ \"__CURSOR\" : \"%s\", "
+ "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", "
+ "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", "
+ "\"_BOOT_ID\" : \"%s\"",
+ cursor,
+ realtime,
+ monotonic,
+ sd_id128_to_string(boot_id, sid));
+ }
+
+ h = hashmap_new(&string_hash_ops);
+ if (!h)
+ return log_oom();
+
+ /* First round, iterate through the entry and count how often each field appears */
+ JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) {
+ const char *eq;
+ char *n;
+ unsigned u;
+
+ if (length >= 9 &&
+ memcmp(data, "_BOOT_ID=", 9) == 0)
+ continue;
+
+ eq = memchr(data, '=', length);
+ if (!eq)
+ continue;
+
+ n = strndup(data, eq - (const char*) data);
+ if (!n) {
+ r = log_oom();
+ goto finish;
+ }
+
+ u = PTR_TO_UINT(hashmap_get(h, n));
+ if (u == 0) {
+ r = hashmap_put(h, n, UINT_TO_PTR(1));
+ if (r < 0) {
+ free(n);
+ log_oom();
+ goto finish;
+ }
+ } else {
+ r = hashmap_update(h, n, UINT_TO_PTR(u + 1));
+ free(n);
+ if (r < 0) {
+ log_oom();
+ goto finish;
+ }
+ }
+ }
+
+ if (r < 0)
+ return r;
+
+ separator = true;
+ do {
+ done = true;
+
+ SD_JOURNAL_FOREACH_DATA(j, data, length) {
+ const char *eq;
+ char *kk, *n;
+ size_t m;
+ unsigned u;
+
+ /* We already printed the boot id, from the data in
+ * the header, hence let's suppress it here */
+ if (length >= 9 &&
+ memcmp(data, "_BOOT_ID=", 9) == 0)
+ continue;
+
+ eq = memchr(data, '=', length);
+ if (!eq)
+ continue;
+
+ if (separator) {
+ if (mode == OUTPUT_JSON_PRETTY)
+ fputs(",\n\t", f);
+ else
+ fputs(", ", f);
+ }
+
+ m = eq - (const char*) data;
+
+ n = strndup(data, m);
+ if (!n) {
+ r = log_oom();
+ goto finish;
+ }
+
+ u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk));
+ if (u == 0) {
+ /* We already printed this, let's jump to the next */
+ free(n);
+ separator = false;
+
+ continue;
+ } else if (u == 1) {
+ /* Field only appears once, output it directly */
+
+ json_escape(f, data, m, flags);
+ fputs(" : ", f);
+
+ json_escape(f, eq + 1, length - m - 1, flags);
+
+ hashmap_remove(h, n);
+ free(kk);
+ free(n);
+
+ separator = true;
+
+ continue;
+
+ } else {
+ /* Field appears multiple times, output it as array */
+ json_escape(f, data, m, flags);
+ fputs(" : [ ", f);
+ json_escape(f, eq + 1, length - m - 1, flags);
+
+ /* Iterate through the end of the list */
+
+ while (sd_journal_enumerate_data(j, &data, &length) > 0) {
+ if (length < m + 1)
+ continue;
+
+ if (memcmp(data, n, m) != 0)
+ continue;
+
+ if (((const char*) data)[m] != '=')
+ continue;
+
+ fputs(", ", f);
+ json_escape(f, (const char*) data + m + 1, length - m - 1, flags);
+ }
+
+ fputs(" ]", f);
+
+ hashmap_remove(h, n);
+ free(kk);
+ free(n);
+
+ /* Iterate data fields form the beginning */
+ done = false;
+ separator = true;
+
+ break;
+ }
+ }
+
+ } while (!done);
+
+ if (mode == OUTPUT_JSON_PRETTY)
+ fputs("\n}\n", f);
+ else if (mode == OUTPUT_JSON_SSE)
+ fputs("}\n\n", f);
+ else
+ fputs(" }\n", f);
+
+ r = 0;
+
+finish:
+ while ((k = hashmap_steal_first_key(h)))
+ free(k);
+
+ hashmap_free(h);
+
+ return r;
+}
+
+static int output_cat(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) {
+
+ const void *data;
+ size_t l;
+ int r;
+
+ assert(j);
+ assert(f);
+
+ sd_journal_set_data_threshold(j, 0);
+
+ r = sd_journal_get_data(j, "MESSAGE", &data, &l);
+ if (r < 0) {
+ /* An entry without MESSAGE=? */
+ if (r == -ENOENT)
+ return 0;
+
+ return log_error_errno(r, "Failed to get data: %m");
+ }
+
+ assert(l >= 8);
+
+ fwrite((const char*) data + 8, 1, l - 8, f);
+ fputc('\n', f);
+
+ return 0;
+}
+
+static int (*output_funcs[_OUTPUT_MODE_MAX])(
+ FILE *f,
+ sd_journal*j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags) = {
+
+ [OUTPUT_SHORT] = output_short,
+ [OUTPUT_SHORT_ISO] = output_short,
+ [OUTPUT_SHORT_PRECISE] = output_short,
+ [OUTPUT_SHORT_MONOTONIC] = output_short,
+ [OUTPUT_SHORT_UNIX] = output_short,
+ [OUTPUT_SHORT_FULL] = output_short,
+ [OUTPUT_VERBOSE] = output_verbose,
+ [OUTPUT_EXPORT] = output_export,
+ [OUTPUT_JSON] = output_json,
+ [OUTPUT_JSON_PRETTY] = output_json,
+ [OUTPUT_JSON_SSE] = output_json,
+ [OUTPUT_CAT] = output_cat
+};
+
+int output_journal(
+ FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ OutputFlags flags,
+ bool *ellipsized) {
+
+ int ret;
+ assert(mode >= 0);
+ assert(mode < _OUTPUT_MODE_MAX);
+
+ if (n_columns <= 0)
+ n_columns = columns();
+
+ ret = output_funcs[mode](f, j, mode, n_columns, flags);
+ fflush(stdout);
+
+ if (ellipsized && ret > 0)
+ *ellipsized = true;
+
+ return ret;
+}
+
+static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) {
+ assert(f);
+ assert(flags);
+
+ if (!(*flags & OUTPUT_BEGIN_NEWLINE))
+ return 0;
+
+ /* Print a beginning new line if that's request, but only once
+ * on the first line we print. */
+
+ fputc('\n', f);
+ *flags &= ~OUTPUT_BEGIN_NEWLINE;
+ return 0;
+}
+
+static int show_journal(FILE *f,
+ sd_journal *j,
+ OutputMode mode,
+ unsigned n_columns,
+ usec_t not_before,
+ unsigned how_many,
+ OutputFlags flags,
+ bool *ellipsized) {
+
+ int r;
+ unsigned line = 0;
+ bool need_seek = false;
+ int warn_cutoff = flags & OUTPUT_WARN_CUTOFF;
+
+ assert(j);
+ assert(mode >= 0);
+ assert(mode < _OUTPUT_MODE_MAX);
+
+ /* Seek to end */
+ r = sd_journal_seek_tail(j);
+ if (r < 0)
+ return log_error_errno(r, "Failed to seek to tail: %m");
+
+ r = sd_journal_previous_skip(j, how_many);
+ if (r < 0)
+ return log_error_errno(r, "Failed to skip previous: %m");
+
+ for (;;) {
+ for (;;) {
+ usec_t usec;
+
+ if (need_seek) {
+ r = sd_journal_next(j);
+ if (r < 0)
+ return log_error_errno(r, "Failed to iterate through journal: %m");
+ }
+
+ if (r == 0)
+ break;
+
+ need_seek = true;
+
+ if (not_before > 0) {
+ r = sd_journal_get_monotonic_usec(j, &usec, NULL);
+
+ /* -ESTALE is returned if the
+ timestamp is not from this boot */
+ if (r == -ESTALE)
+ continue;
+ else if (r < 0)
+ return log_error_errno(r, "Failed to get journal time: %m");
+
+ if (usec < not_before)
+ continue;
+ }
+
+ line++;
+ maybe_print_begin_newline(f, &flags);
+
+ r = output_journal(f, j, mode, n_columns, flags, ellipsized);
+ if (r < 0)
+ return r;
+ }
+
+ if (warn_cutoff && line < how_many && not_before > 0) {
+ sd_id128_t boot_id;
+ usec_t cutoff = 0;
+
+ /* Check whether the cutoff line is too early */
+
+ r = sd_id128_get_boot(&boot_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get boot id: %m");
+
+ r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get journal cutoff time: %m");
+
+ if (r > 0 && not_before < cutoff) {
+ maybe_print_begin_newline(f, &flags);
+ fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n");
+ }
+
+ warn_cutoff = false;
+ }
+
+ if (!(flags & OUTPUT_FOLLOW))
+ break;
+
+ r = sd_journal_wait(j, USEC_INFINITY);
+ if (r < 0)
+ return log_error_errno(r, "Failed to wait for journal: %m");
+
+ }
+
+ return 0;
+}
+
+int add_matches_for_unit(sd_journal *j, const char *unit) {
+ const char *m1, *m2, *m3, *m4;
+ int r;
+
+ assert(j);
+ assert(unit);
+
+ m1 = strjoina("_SYSTEMD_UNIT=", unit);
+ m2 = strjoina("COREDUMP_UNIT=", unit);
+ m3 = strjoina("UNIT=", unit);
+ m4 = strjoina("OBJECT_SYSTEMD_UNIT=", unit);
+
+ (void)(
+ /* Look for messages from the service itself */
+ (r = sd_journal_add_match(j, m1, 0)) ||
+
+ /* Look for coredumps of the service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) ||
+ (r = sd_journal_add_match(j, "_UID=0", 0)) ||
+ (r = sd_journal_add_match(j, m2, 0)) ||
+
+ /* Look for messages from PID 1 about this service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, "_PID=1", 0)) ||
+ (r = sd_journal_add_match(j, m3, 0)) ||
+
+ /* Look for messages from authorized daemons about this service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, "_UID=0", 0)) ||
+ (r = sd_journal_add_match(j, m4, 0))
+ );
+
+ if (r == 0 && endswith(unit, ".slice")) {
+ const char *m5;
+
+ m5 = strjoina("_SYSTEMD_SLICE=", unit);
+
+ /* Show all messages belonging to a slice */
+ (void)(
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m5, 0))
+ );
+ }
+
+ return r;
+}
+
+int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) {
+ int r;
+ char *m1, *m2, *m3, *m4;
+ char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)];
+
+ assert(j);
+ assert(unit);
+
+ m1 = strjoina("_SYSTEMD_USER_UNIT=", unit);
+ m2 = strjoina("USER_UNIT=", unit);
+ m3 = strjoina("COREDUMP_USER_UNIT=", unit);
+ m4 = strjoina("OBJECT_SYSTEMD_USER_UNIT=", unit);
+ sprintf(muid, "_UID="UID_FMT, uid);
+
+ (void) (
+ /* Look for messages from the user service itself */
+ (r = sd_journal_add_match(j, m1, 0)) ||
+ (r = sd_journal_add_match(j, muid, 0)) ||
+
+ /* Look for messages from systemd about this service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m2, 0)) ||
+ (r = sd_journal_add_match(j, muid, 0)) ||
+
+ /* Look for coredumps of the service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m3, 0)) ||
+ (r = sd_journal_add_match(j, muid, 0)) ||
+ (r = sd_journal_add_match(j, "_UID=0", 0)) ||
+
+ /* Look for messages from authorized daemons about this service */
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m4, 0)) ||
+ (r = sd_journal_add_match(j, muid, 0)) ||
+ (r = sd_journal_add_match(j, "_UID=0", 0))
+ );
+
+ if (r == 0 && endswith(unit, ".slice")) {
+ const char *m5;
+
+ m5 = strjoina("_SYSTEMD_SLICE=", unit);
+
+ /* Show all messages belonging to a slice */
+ (void)(
+ (r = sd_journal_add_disjunction(j)) ||
+ (r = sd_journal_add_match(j, m5, 0)) ||
+ (r = sd_journal_add_match(j, muid, 0))
+ );
+ }
+
+ return r;
+}
+
+static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) {
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1;
+ pid_t pid, child;
+ siginfo_t si;
+ char buf[37];
+ ssize_t k;
+ int r;
+
+ assert(machine);
+ assert(boot_id);
+
+ if (!machine_name_is_valid(machine))
+ return -EINVAL;
+
+ r = container_get_leader(machine, &pid);
+ if (r < 0)
+ return r;
+
+ r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, NULL, &rootfd);
+ if (r < 0)
+ return r;
+
+ if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0)
+ return -errno;
+
+ child = fork();
+ if (child < 0)
+ return -errno;
+
+ if (child == 0) {
+ int fd;
+
+ pair[0] = safe_close(pair[0]);
+
+ r = namespace_enter(pidnsfd, mntnsfd, -1, -1, rootfd);
+ if (r < 0)
+ _exit(EXIT_FAILURE);
+
+ fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0)
+ _exit(EXIT_FAILURE);
+
+ r = loop_read_exact(fd, buf, 36, false);
+ safe_close(fd);
+ if (r < 0)
+ _exit(EXIT_FAILURE);
+
+ k = send(pair[1], buf, 36, MSG_NOSIGNAL);
+ if (k != 36)
+ _exit(EXIT_FAILURE);
+
+ _exit(EXIT_SUCCESS);
+ }
+
+ pair[1] = safe_close(pair[1]);
+
+ r = wait_for_terminate(child, &si);
+ if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS)
+ return r < 0 ? r : -EIO;
+
+ k = recv(pair[0], buf, 36, 0);
+ if (k != 36)
+ return -EIO;
+
+ buf[36] = 0;
+ r = sd_id128_from_string(buf, boot_id);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int add_match_this_boot(sd_journal *j, const char *machine) {
+ char match[9+32+1] = "_BOOT_ID=";
+ sd_id128_t boot_id;
+ int r;
+
+ assert(j);
+
+ if (machine) {
+ r = get_boot_id_for_machine(machine, &boot_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get boot id of container %s: %m", machine);
+ } else {
+ r = sd_id128_get_boot(&boot_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get boot id: %m");
+ }
+
+ sd_id128_to_string(boot_id, match + 9);
+ r = sd_journal_add_match(j, match, strlen(match));
+ if (r < 0)
+ return log_error_errno(r, "Failed to add match: %m");
+
+ r = sd_journal_add_conjunction(j);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add conjunction: %m");
+
+ return 0;
+}
+
+int show_journal_by_unit(
+ FILE *f,
+ const char *unit,
+ OutputMode mode,
+ unsigned n_columns,
+ usec_t not_before,
+ unsigned how_many,
+ uid_t uid,
+ OutputFlags flags,
+ int journal_open_flags,
+ bool system_unit,
+ bool *ellipsized) {
+
+ _cleanup_(sd_journal_closep) sd_journal *j = NULL;
+ int r;
+
+ assert(mode >= 0);
+ assert(mode < _OUTPUT_MODE_MAX);
+ assert(unit);
+
+ if (how_many <= 0)
+ return 0;
+
+ r = sd_journal_open(&j, journal_open_flags);
+ if (r < 0)
+ return log_error_errno(r, "Failed to open journal: %m");
+
+ r = add_match_this_boot(j, NULL);
+ if (r < 0)
+ return r;
+
+ if (system_unit)
+ r = add_matches_for_unit(j, unit);
+ else
+ r = add_matches_for_user_unit(j, unit, uid);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add unit matches: %m");
+
+ if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) {
+ _cleanup_free_ char *filter;
+
+ filter = journal_make_match_string(j);
+ if (!filter)
+ return log_oom();
+
+ log_debug("Journal filter: %s", filter);
+ }
+
+ return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized);
+}
diff --git a/src/libsystemd-shared/src/machine-image.c b/src/libsystemd-shared/src/machine-image.c
new file mode 100644
index 0000000000..fd6fe5215b
--- /dev/null
+++ b/src/libsystemd-shared/src/machine-image.c
@@ -0,0 +1,819 @@
+/***
+ 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 <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <linux/fs.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/btrfs-util.h"
+#include "systemd-basic/chattr-util.h"
+#include "systemd-basic/copy.h"
+#include "systemd-basic/dirent-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/hashmap.h"
+#include "systemd-basic/lockfile-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/rm-rf.h"
+#include "systemd-basic/string-table.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/utf8.h"
+#include "systemd-basic/util.h"
+#include "systemd-basic/xattr-util.h"
+#include "systemd-shared/machine-image.h"
+
+static const char image_search_path[] =
+ "/var/lib/machines\0"
+ "/var/lib/container\0" /* legacy */
+ "/usr/local/lib/machines\0"
+ "/usr/lib/machines\0";
+
+Image *image_unref(Image *i) {
+ if (!i)
+ return NULL;
+
+ free(i->name);
+ free(i->path);
+ return mfree(i);
+}
+
+static char **image_settings_path(Image *image) {
+ _cleanup_strv_free_ char **l = NULL;
+ char **ret;
+ const char *fn, *s;
+ unsigned i = 0;
+
+ assert(image);
+
+ l = new0(char*, 4);
+ if (!l)
+ return NULL;
+
+ fn = strjoina(image->name, ".nspawn");
+
+ FOREACH_STRING(s, "/etc/systemd/nspawn/", "/run/systemd/nspawn/") {
+ l[i] = strappend(s, fn);
+ if (!l[i])
+ return NULL;
+
+ i++;
+ }
+
+ l[i] = file_in_same_dir(image->path, fn);
+ if (!l[i])
+ return NULL;
+
+ ret = l;
+ l = NULL;
+
+ return ret;
+}
+
+static int image_new(
+ ImageType t,
+ const char *pretty,
+ const char *path,
+ const char *filename,
+ bool read_only,
+ usec_t crtime,
+ usec_t mtime,
+ Image **ret) {
+
+ _cleanup_(image_unrefp) Image *i = NULL;
+
+ assert(t >= 0);
+ assert(t < _IMAGE_TYPE_MAX);
+ assert(pretty);
+ assert(filename);
+ assert(ret);
+
+ i = new0(Image, 1);
+ if (!i)
+ return -ENOMEM;
+
+ i->type = t;
+ i->read_only = read_only;
+ i->crtime = crtime;
+ i->mtime = mtime;
+ i->usage = i->usage_exclusive = (uint64_t) -1;
+ i->limit = i->limit_exclusive = (uint64_t) -1;
+
+ i->name = strdup(pretty);
+ if (!i->name)
+ return -ENOMEM;
+
+ if (path)
+ i->path = strjoin(path, "/", filename, NULL);
+ else
+ i->path = strdup(filename);
+
+ if (!i->path)
+ return -ENOMEM;
+
+ path_kill_slashes(i->path);
+
+ *ret = i;
+ i = NULL;
+
+ return 0;
+}
+
+static int image_make(
+ const char *pretty,
+ int dfd,
+ const char *path,
+ const char *filename,
+ Image **ret) {
+
+ struct stat st;
+ bool read_only;
+ int r;
+
+ assert(filename);
+
+ /* We explicitly *do* follow symlinks here, since we want to
+ * allow symlinking trees into /var/lib/machines/, and treat
+ * them normally. */
+
+ if (fstatat(dfd, filename, &st, 0) < 0)
+ return -errno;
+
+ read_only =
+ (path && path_startswith(path, "/usr")) ||
+ (faccessat(dfd, filename, W_OK, AT_EACCESS) < 0 && errno == EROFS);
+
+ if (S_ISDIR(st.st_mode)) {
+ _cleanup_close_ int fd = -1;
+ unsigned file_attr = 0;
+
+ if (!ret)
+ return 1;
+
+ if (!pretty)
+ pretty = filename;
+
+ fd = openat(dfd, filename, O_CLOEXEC|O_NOCTTY|O_DIRECTORY);
+ if (fd < 0)
+ return -errno;
+
+ /* btrfs subvolumes have inode 256 */
+ if (st.st_ino == 256) {
+
+ r = btrfs_is_filesystem(fd);
+ if (r < 0)
+ return r;
+ if (r) {
+ BtrfsSubvolInfo info;
+
+ /* It's a btrfs subvolume */
+
+ r = btrfs_subvol_get_info_fd(fd, 0, &info);
+ if (r < 0)
+ return r;
+
+ r = image_new(IMAGE_SUBVOLUME,
+ pretty,
+ path,
+ filename,
+ info.read_only || read_only,
+ info.otime,
+ 0,
+ ret);
+ if (r < 0)
+ return r;
+
+ if (btrfs_quota_scan_ongoing(fd) == 0) {
+ BtrfsQuotaInfo quota;
+
+ r = btrfs_subvol_get_subtree_quota_fd(fd, 0, &quota);
+ if (r >= 0) {
+ (*ret)->usage = quota.referenced;
+ (*ret)->usage_exclusive = quota.exclusive;
+
+ (*ret)->limit = quota.referenced_max;
+ (*ret)->limit_exclusive = quota.exclusive_max;
+ }
+ }
+
+ return 1;
+ }
+ }
+
+ /* If the IMMUTABLE bit is set, we consider the
+ * directory read-only. Since the ioctl is not
+ * supported everywhere we ignore failures. */
+ (void) read_attr_fd(fd, &file_attr);
+
+ /* It's just a normal directory. */
+ r = image_new(IMAGE_DIRECTORY,
+ pretty,
+ path,
+ filename,
+ read_only || (file_attr & FS_IMMUTABLE_FL),
+ 0,
+ 0,
+ ret);
+ if (r < 0)
+ return r;
+
+ return 1;
+
+ } else if (S_ISREG(st.st_mode) && endswith(filename, ".raw")) {
+ usec_t crtime = 0;
+
+ /* It's a RAW disk image */
+
+ if (!ret)
+ return 1;
+
+ fd_getcrtime_at(dfd, filename, &crtime, 0);
+
+ if (!pretty)
+ pretty = strndupa(filename, strlen(filename) - 4);
+
+ r = image_new(IMAGE_RAW,
+ pretty,
+ path,
+ filename,
+ !(st.st_mode & 0222) || read_only,
+ crtime,
+ timespec_load(&st.st_mtim),
+ ret);
+ if (r < 0)
+ return r;
+
+ (*ret)->usage = (*ret)->usage_exclusive = st.st_blocks * 512;
+ (*ret)->limit = (*ret)->limit_exclusive = st.st_size;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int image_find(const char *name, Image **ret) {
+ const char *path;
+ int r;
+
+ assert(name);
+
+ /* There are no images with invalid names */
+ if (!image_name_is_valid(name))
+ return 0;
+
+ NULSTR_FOREACH(path, image_search_path) {
+ _cleanup_closedir_ DIR *d = NULL;
+
+ d = opendir(path);
+ if (!d) {
+ if (errno == ENOENT)
+ continue;
+
+ return -errno;
+ }
+
+ r = image_make(NULL, dirfd(d), path, name, ret);
+ if (r == 0 || r == -ENOENT) {
+ _cleanup_free_ char *raw = NULL;
+
+ raw = strappend(name, ".raw");
+ if (!raw)
+ return -ENOMEM;
+
+ r = image_make(NULL, dirfd(d), path, raw, ret);
+ if (r == 0 || r == -ENOENT)
+ continue;
+ }
+ if (r < 0)
+ return r;
+
+ return 1;
+ }
+
+ if (streq(name, ".host"))
+ return image_make(".host", AT_FDCWD, NULL, "/", ret);
+
+ return 0;
+};
+
+int image_discover(Hashmap *h) {
+ const char *path;
+ int r;
+
+ assert(h);
+
+ NULSTR_FOREACH(path, image_search_path) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+
+ d = opendir(path);
+ if (!d) {
+ if (errno == ENOENT)
+ continue;
+
+ return -errno;
+ }
+
+ FOREACH_DIRENT_ALL(de, d, return -errno) {
+ _cleanup_(image_unrefp) Image *image = NULL;
+
+ if (!image_name_is_valid(de->d_name))
+ continue;
+
+ if (hashmap_contains(h, de->d_name))
+ continue;
+
+ r = image_make(NULL, dirfd(d), path, de->d_name, &image);
+ if (r == 0 || r == -ENOENT)
+ continue;
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(h, image->name, image);
+ if (r < 0)
+ return r;
+
+ image = NULL;
+ }
+ }
+
+ if (!hashmap_contains(h, ".host")) {
+ _cleanup_(image_unrefp) Image *image = NULL;
+
+ r = image_make(".host", AT_FDCWD, NULL, "/", &image);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(h, image->name, image);
+ if (r < 0)
+ return r;
+
+ image = NULL;
+
+ }
+
+ return 0;
+}
+
+void image_hashmap_free(Hashmap *map) {
+ Image *i;
+
+ while ((i = hashmap_steal_first(map)))
+ image_unref(i);
+
+ hashmap_free(map);
+}
+
+int image_remove(Image *i) {
+ _cleanup_release_lock_file_ LockFile global_lock = LOCK_FILE_INIT, local_lock = LOCK_FILE_INIT;
+ _cleanup_strv_free_ char **settings = NULL;
+ char **j;
+ int r;
+
+ assert(i);
+
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
+ return -EROFS;
+
+ settings = image_settings_path(i);
+ if (!settings)
+ return -ENOMEM;
+
+ /* Make sure we don't interfere with a running nspawn */
+ r = image_path_lock(i->path, LOCK_EX|LOCK_NB, &global_lock, &local_lock);
+ if (r < 0)
+ return r;
+
+ switch (i->type) {
+
+ case IMAGE_SUBVOLUME:
+ r = btrfs_subvol_remove(i->path, BTRFS_REMOVE_RECURSIVE|BTRFS_REMOVE_QUOTA);
+ if (r < 0)
+ return r;
+ break;
+
+ case IMAGE_DIRECTORY:
+ /* Allow deletion of read-only directories */
+ (void) chattr_path(i->path, 0, FS_IMMUTABLE_FL);
+ r = rm_rf(i->path, REMOVE_ROOT|REMOVE_PHYSICAL|REMOVE_SUBVOLUME);
+ if (r < 0)
+ return r;
+
+ break;
+
+ case IMAGE_RAW:
+ if (unlink(i->path) < 0)
+ return -errno;
+ break;
+
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ STRV_FOREACH(j, settings) {
+ if (unlink(*j) < 0 && errno != ENOENT)
+ log_debug_errno(errno, "Failed to unlink %s, ignoring: %m", *j);
+ }
+
+ return 0;
+}
+
+static int rename_settings_file(const char *path, const char *new_name) {
+ _cleanup_free_ char *rs = NULL;
+ const char *fn;
+
+ fn = strjoina(new_name, ".nspawn");
+
+ rs = file_in_same_dir(path, fn);
+ if (!rs)
+ return -ENOMEM;
+
+ return rename_noreplace(AT_FDCWD, path, AT_FDCWD, rs);
+}
+
+int image_rename(Image *i, const char *new_name) {
+ _cleanup_release_lock_file_ LockFile global_lock = LOCK_FILE_INIT, local_lock = LOCK_FILE_INIT, name_lock = LOCK_FILE_INIT;
+ _cleanup_free_ char *new_path = NULL, *nn = NULL;
+ _cleanup_strv_free_ char **settings = NULL;
+ unsigned file_attr = 0;
+ char **j;
+ int r;
+
+ assert(i);
+
+ if (!image_name_is_valid(new_name))
+ return -EINVAL;
+
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
+ return -EROFS;
+
+ settings = image_settings_path(i);
+ if (!settings)
+ return -ENOMEM;
+
+ /* Make sure we don't interfere with a running nspawn */
+ r = image_path_lock(i->path, LOCK_EX|LOCK_NB, &global_lock, &local_lock);
+ if (r < 0)
+ return r;
+
+ /* Make sure nobody takes the new name, between the time we
+ * checked it is currently unused in all search paths, and the
+ * time we take possession of it */
+ r = image_name_lock(new_name, LOCK_EX|LOCK_NB, &name_lock);
+ if (r < 0)
+ return r;
+
+ r = image_find(new_name, NULL);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return -EEXIST;
+
+ switch (i->type) {
+
+ case IMAGE_DIRECTORY:
+ /* Turn of the immutable bit while we rename the image, so that we can rename it */
+ (void) read_attr_path(i->path, &file_attr);
+
+ if (file_attr & FS_IMMUTABLE_FL)
+ (void) chattr_path(i->path, 0, FS_IMMUTABLE_FL);
+
+ /* fall through */
+
+ case IMAGE_SUBVOLUME:
+ new_path = file_in_same_dir(i->path, new_name);
+ break;
+
+ case IMAGE_RAW: {
+ const char *fn;
+
+ fn = strjoina(new_name, ".raw");
+ new_path = file_in_same_dir(i->path, fn);
+ break;
+ }
+
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (!new_path)
+ return -ENOMEM;
+
+ nn = strdup(new_name);
+ if (!nn)
+ return -ENOMEM;
+
+ r = rename_noreplace(AT_FDCWD, i->path, AT_FDCWD, new_path);
+ if (r < 0)
+ return r;
+
+ /* Restore the immutable bit, if it was set before */
+ if (file_attr & FS_IMMUTABLE_FL)
+ (void) chattr_path(new_path, FS_IMMUTABLE_FL, FS_IMMUTABLE_FL);
+
+ free(i->path);
+ i->path = new_path;
+ new_path = NULL;
+
+ free(i->name);
+ i->name = nn;
+ nn = NULL;
+
+ STRV_FOREACH(j, settings) {
+ r = rename_settings_file(*j, new_name);
+ if (r < 0 && r != -ENOENT)
+ log_debug_errno(r, "Failed to rename settings file %s, ignoring: %m", *j);
+ }
+
+ return 0;
+}
+
+static int clone_settings_file(const char *path, const char *new_name) {
+ _cleanup_free_ char *rs = NULL;
+ const char *fn;
+
+ fn = strjoina(new_name, ".nspawn");
+
+ rs = file_in_same_dir(path, fn);
+ if (!rs)
+ return -ENOMEM;
+
+ return copy_file_atomic(path, rs, 0664, false, 0);
+}
+
+int image_clone(Image *i, const char *new_name, bool read_only) {
+ _cleanup_release_lock_file_ LockFile name_lock = LOCK_FILE_INIT;
+ _cleanup_strv_free_ char **settings = NULL;
+ const char *new_path;
+ char **j;
+ int r;
+
+ assert(i);
+
+ if (!image_name_is_valid(new_name))
+ return -EINVAL;
+
+ settings = image_settings_path(i);
+ if (!settings)
+ return -ENOMEM;
+
+ /* Make sure nobody takes the new name, between the time we
+ * checked it is currently unused in all search paths, and the
+ * time we take possession of it */
+ r = image_name_lock(new_name, LOCK_EX|LOCK_NB, &name_lock);
+ if (r < 0)
+ return r;
+
+ r = image_find(new_name, NULL);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return -EEXIST;
+
+ switch (i->type) {
+
+ case IMAGE_SUBVOLUME:
+ case IMAGE_DIRECTORY:
+ /* If we can we'll always try to create a new btrfs subvolume here, even if the source is a plain
+ * directory.*/
+
+ new_path = strjoina("/var/lib/machines/", new_name);
+
+ r = btrfs_subvol_snapshot(i->path, new_path, (read_only ? BTRFS_SNAPSHOT_READ_ONLY : 0) | BTRFS_SNAPSHOT_FALLBACK_COPY | BTRFS_SNAPSHOT_RECURSIVE | BTRFS_SNAPSHOT_QUOTA);
+ if (r == -EOPNOTSUPP) {
+ /* No btrfs snapshots supported, create a normal directory then. */
+
+ r = copy_directory(i->path, new_path, false);
+ if (r >= 0)
+ (void) chattr_path(new_path, read_only ? FS_IMMUTABLE_FL : 0, FS_IMMUTABLE_FL);
+ } else if (r >= 0)
+ /* Enable "subtree" quotas for the copy, if we didn't copy any quota from the source. */
+ (void) btrfs_subvol_auto_qgroup(new_path, 0, true);
+
+ break;
+
+ case IMAGE_RAW:
+ new_path = strjoina("/var/lib/machines/", new_name, ".raw");
+
+ r = copy_file_atomic(i->path, new_path, read_only ? 0444 : 0644, false, FS_NOCOW_FL);
+ break;
+
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(j, settings) {
+ r = clone_settings_file(*j, new_name);
+ if (r < 0 && r != -ENOENT)
+ log_debug_errno(r, "Failed to clone settings %s, ignoring: %m", *j);
+ }
+
+ return 0;
+}
+
+int image_read_only(Image *i, bool b) {
+ _cleanup_release_lock_file_ LockFile global_lock = LOCK_FILE_INIT, local_lock = LOCK_FILE_INIT;
+ int r;
+ assert(i);
+
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
+ return -EROFS;
+
+ /* Make sure we don't interfere with a running nspawn */
+ r = image_path_lock(i->path, LOCK_EX|LOCK_NB, &global_lock, &local_lock);
+ if (r < 0)
+ return r;
+
+ switch (i->type) {
+
+ case IMAGE_SUBVOLUME:
+
+ /* Note that we set the flag only on the top-level
+ * subvolume of the image. */
+
+ r = btrfs_subvol_set_read_only(i->path, b);
+ if (r < 0)
+ return r;
+
+ break;
+
+ case IMAGE_DIRECTORY:
+ /* For simple directory trees we cannot use the access
+ mode of the top-level directory, since it has an
+ effect on the container itself. However, we can
+ use the "immutable" flag, to at least make the
+ top-level directory read-only. It's not as good as
+ a read-only subvolume, but at least something, and
+ we can read the value back.*/
+
+ r = chattr_path(i->path, b ? FS_IMMUTABLE_FL : 0, FS_IMMUTABLE_FL);
+ if (r < 0)
+ return r;
+
+ break;
+
+ case IMAGE_RAW: {
+ struct stat st;
+
+ if (stat(i->path, &st) < 0)
+ return -errno;
+
+ if (chmod(i->path, (st.st_mode & 0444) | (b ? 0000 : 0200)) < 0)
+ return -errno;
+
+ /* If the images is now read-only, it's a good time to
+ * defrag it, given that no write patterns will
+ * fragment it again. */
+ if (b)
+ (void) btrfs_defrag(i->path);
+ break;
+ }
+
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+int image_path_lock(const char *path, int operation, LockFile *global, LockFile *local) {
+ _cleanup_free_ char *p = NULL;
+ LockFile t = LOCK_FILE_INIT;
+ struct stat st;
+ int r;
+
+ assert(path);
+ assert(global);
+ assert(local);
+
+ /* Locks an image path. This actually creates two locks: one
+ * "local" one, next to the image path itself, which might be
+ * shared via NFS. And another "global" one, in /run, that
+ * uses the device/inode number. This has the benefit that we
+ * can even lock a tree that is a mount point, correctly. */
+
+ if (path_equal(path, "/"))
+ return -EBUSY;
+
+ if (!path_is_absolute(path))
+ return -EINVAL;
+
+ if (stat(path, &st) >= 0) {
+ if (asprintf(&p, "/run/systemd/nspawn/locks/inode-%lu:%lu", (unsigned long) st.st_dev, (unsigned long) st.st_ino) < 0)
+ return -ENOMEM;
+ }
+
+ r = make_lock_file_for(path, operation, &t);
+ if (r < 0)
+ return r;
+
+ if (p) {
+ mkdir_p("/run/systemd/nspawn/locks", 0700);
+
+ r = make_lock_file(p, operation, global);
+ if (r < 0) {
+ release_lock_file(&t);
+ return r;
+ }
+ }
+
+ *local = t;
+ return 0;
+}
+
+int image_set_limit(Image *i, uint64_t referenced_max) {
+ assert(i);
+
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
+ return -EROFS;
+
+ if (i->type != IMAGE_SUBVOLUME)
+ return -EOPNOTSUPP;
+
+ /* We set the quota both for the subvolume as well as for the
+ * subtree. The latter is mostly for historical reasons, since
+ * we didn't use to have a concept of subtree quota, and hence
+ * only modified the subvolume quota. */
+
+ (void) btrfs_qgroup_set_limit(i->path, 0, referenced_max);
+ (void) btrfs_subvol_auto_qgroup(i->path, 0, true);
+ return btrfs_subvol_set_subtree_quota_limit(i->path, 0, referenced_max);
+}
+
+int image_name_lock(const char *name, int operation, LockFile *ret) {
+ const char *p;
+
+ assert(name);
+ assert(ret);
+
+ /* Locks an image name, regardless of the precise path used. */
+
+ if (!image_name_is_valid(name))
+ return -EINVAL;
+
+ if (streq(name, ".host"))
+ return -EBUSY;
+
+ mkdir_p("/run/systemd/nspawn/locks", 0700);
+ p = strjoina("/run/systemd/nspawn/locks/name-", name);
+
+ return make_lock_file(p, operation, ret);
+}
+
+bool image_name_is_valid(const char *s) {
+ if (!filename_is_valid(s))
+ return false;
+
+ if (string_has_cc(s, NULL))
+ return false;
+
+ if (!utf8_is_valid(s))
+ return false;
+
+ /* Temporary files for atomically creating new files */
+ if (startswith(s, ".#"))
+ return false;
+
+ return true;
+}
+
+static const char* const image_type_table[_IMAGE_TYPE_MAX] = {
+ [IMAGE_DIRECTORY] = "directory",
+ [IMAGE_SUBVOLUME] = "subvolume",
+ [IMAGE_RAW] = "raw",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(image_type, ImageType);
diff --git a/src/libsystemd-shared/src/machine-pool.c b/src/libsystemd-shared/src/machine-pool.c
new file mode 100644
index 0000000000..239b5233e8
--- /dev/null
+++ b/src/libsystemd-shared/src/machine-pool.c
@@ -0,0 +1,427 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/file.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+#include <sys/statfs.h>
+#include <sys/statvfs.h>
+#include <unistd.h>
+
+#include <linux/loop.h>
+
+#include <systemd/sd-bus-protocol.h>
+#include <systemd/sd-bus.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/btrfs-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/fs-util.h"
+#include "systemd-basic/lockfile-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/missing.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/mount-util.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/stat-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-shared/machine-pool.h"
+
+#define VAR_LIB_MACHINES_SIZE_START (1024UL*1024UL*500UL)
+#define VAR_LIB_MACHINES_FREE_MIN (1024UL*1024UL*750UL)
+
+static int check_btrfs(void) {
+ struct statfs sfs;
+
+ if (statfs("/var/lib/machines", &sfs) < 0) {
+ if (errno != ENOENT)
+ return -errno;
+
+ if (statfs("/var/lib", &sfs) < 0)
+ return -errno;
+ }
+
+ return F_TYPE_EQUAL(sfs.f_type, BTRFS_SUPER_MAGIC);
+}
+
+static int setup_machine_raw(uint64_t size, sd_bus_error *error) {
+ _cleanup_free_ char *tmp = NULL;
+ _cleanup_close_ int fd = -1;
+ struct statvfs ss;
+ pid_t pid = 0;
+ siginfo_t si;
+ int r;
+
+ /* We want to be able to make use of btrfs-specific file
+ * system features, in particular subvolumes, reflinks and
+ * quota. Hence, if we detect that /var/lib/machines.raw is
+ * not located on btrfs, let's create a loopback file, place a
+ * btrfs file system into it, and mount it to
+ * /var/lib/machines. */
+
+ fd = open("/var/lib/machines.raw", O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
+ if (fd >= 0) {
+ r = fd;
+ fd = -1;
+ return r;
+ }
+
+ if (errno != ENOENT)
+ return sd_bus_error_set_errnof(error, errno, "Failed to open /var/lib/machines.raw: %m");
+
+ r = tempfn_xxxxxx("/var/lib/machines.raw", NULL, &tmp);
+ if (r < 0)
+ return r;
+
+ (void) mkdir_p_label("/var/lib", 0755);
+ fd = open(tmp, O_RDWR|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0600);
+ if (fd < 0)
+ return sd_bus_error_set_errnof(error, errno, "Failed to create /var/lib/machines.raw: %m");
+
+ if (fstatvfs(fd, &ss) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to determine free space on /var/lib/machines.raw: %m");
+ goto fail;
+ }
+
+ if (ss.f_bsize * ss.f_bavail < VAR_LIB_MACHINES_FREE_MIN) {
+ r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Not enough free disk space to set up /var/lib/machines.");
+ goto fail;
+ }
+
+ if (ftruncate(fd, size) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to enlarge /var/lib/machines.raw: %m");
+ goto fail;
+ }
+
+ pid = fork();
+ if (pid < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to fork mkfs.btrfs: %m");
+ goto fail;
+ }
+
+ if (pid == 0) {
+
+ /* Child */
+
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
+ assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
+
+ fd = safe_close(fd);
+
+ execlp("mkfs.btrfs", "-Lvar-lib-machines", tmp, NULL);
+ if (errno == ENOENT)
+ _exit(99);
+
+ _exit(EXIT_FAILURE);
+ }
+
+ r = wait_for_terminate(pid, &si);
+ if (r < 0) {
+ sd_bus_error_set_errnof(error, r, "Failed to wait for mkfs.btrfs: %m");
+ goto fail;
+ }
+
+ pid = 0;
+
+ if (si.si_code != CLD_EXITED) {
+ r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "mkfs.btrfs died abnormally.");
+ goto fail;
+ }
+ if (si.si_status == 99) {
+ r = sd_bus_error_set_errnof(error, ENOENT, "Cannot set up /var/lib/machines, mkfs.btrfs is missing");
+ goto fail;
+ }
+ if (si.si_status != 0) {
+ r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "mkfs.btrfs failed with error code %i", si.si_status);
+ goto fail;
+ }
+
+ r = rename_noreplace(AT_FDCWD, tmp, AT_FDCWD, "/var/lib/machines.raw");
+ if (r < 0) {
+ sd_bus_error_set_errnof(error, r, "Failed to move /var/lib/machines.raw into place: %m");
+ goto fail;
+ }
+
+ r = fd;
+ fd = -1;
+
+ return r;
+
+fail:
+ unlink_noerrno(tmp);
+
+ if (pid > 1)
+ kill_and_sigcont(pid, SIGKILL);
+
+ return r;
+}
+
+int setup_machine_directory(uint64_t size, sd_bus_error *error) {
+ _cleanup_release_lock_file_ LockFile lock_file = LOCK_FILE_INIT;
+ struct loop_info64 info = {
+ .lo_flags = LO_FLAGS_AUTOCLEAR,
+ };
+ _cleanup_close_ int fd = -1, control = -1, loop = -1;
+ _cleanup_free_ char* loopdev = NULL;
+ char tmpdir[] = "/tmp/machine-pool.XXXXXX", *mntdir = NULL;
+ bool tmpdir_made = false, mntdir_made = false, mntdir_mounted = false;
+ char buf[FORMAT_BYTES_MAX];
+ int r, nr = -1;
+
+ /* btrfs cannot handle file systems < 16M, hence use this as minimum */
+ if (size == (uint64_t) -1)
+ size = VAR_LIB_MACHINES_SIZE_START;
+ else if (size < 16*1024*1024)
+ size = 16*1024*1024;
+
+ /* Make sure we only set the directory up once at a time */
+ r = make_lock_file("/run/systemd/machines.lock", LOCK_EX, &lock_file);
+ if (r < 0)
+ return r;
+
+ r = check_btrfs();
+ if (r < 0)
+ return sd_bus_error_set_errnof(error, r, "Failed to determine whether /var/lib/machines is located on btrfs: %m");
+ if (r > 0) {
+ (void) btrfs_subvol_make_label("/var/lib/machines");
+
+ r = btrfs_quota_enable("/var/lib/machines", true);
+ if (r < 0)
+ log_warning_errno(r, "Failed to enable quota for /var/lib/machines, ignoring: %m");
+
+ r = btrfs_subvol_auto_qgroup("/var/lib/machines", 0, true);
+ if (r < 0)
+ log_warning_errno(r, "Failed to set up default quota hierarchy for /var/lib/machines, ignoring: %m");
+
+ return 1;
+ }
+
+ if (path_is_mount_point("/var/lib/machines", AT_SYMLINK_FOLLOW) > 0) {
+ log_debug("/var/lib/machines is already a mount point, not creating loopback file for it.");
+ return 0;
+ }
+
+ r = dir_is_populated("/var/lib/machines");
+ if (r < 0 && r != -ENOENT)
+ return r;
+ if (r > 0) {
+ log_debug("/var/log/machines is already populated, not creating loopback file for it.");
+ return 0;
+ }
+
+ r = mkfs_exists("btrfs");
+ if (r == 0)
+ return sd_bus_error_set_errnof(error, ENOENT, "Cannot set up /var/lib/machines, mkfs.btrfs is missing");
+ if (r < 0)
+ return r;
+
+ fd = setup_machine_raw(size, error);
+ if (fd < 0)
+ return fd;
+
+ control = open("/dev/loop-control", O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK);
+ if (control < 0)
+ return sd_bus_error_set_errnof(error, errno, "Failed to open /dev/loop-control: %m");
+
+ nr = ioctl(control, LOOP_CTL_GET_FREE);
+ if (nr < 0)
+ return sd_bus_error_set_errnof(error, errno, "Failed to allocate loop device: %m");
+
+ if (asprintf(&loopdev, "/dev/loop%i", nr) < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ loop = open(loopdev, O_CLOEXEC|O_RDWR|O_NOCTTY|O_NONBLOCK);
+ if (loop < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to open loopback device: %m");
+ goto fail;
+ }
+
+ if (ioctl(loop, LOOP_SET_FD, fd) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to bind loopback device: %m");
+ goto fail;
+ }
+
+ if (ioctl(loop, LOOP_SET_STATUS64, &info) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to enable auto-clear for loopback device: %m");
+ goto fail;
+ }
+
+ /* We need to make sure the new /var/lib/machines directory
+ * has an access mode of 0700 at the time it is first made
+ * available. mkfs will create it with 0755 however. Hence,
+ * let's mount the directory into an inaccessible directory
+ * below /tmp first, fix the access mode, and move it to the
+ * public place then. */
+
+ if (!mkdtemp(tmpdir)) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount parent directory: %m");
+ goto fail;
+ }
+ tmpdir_made = true;
+
+ mntdir = strjoina(tmpdir, "/mnt");
+ if (mkdir(mntdir, 0700) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount directory: %m");
+ goto fail;
+ }
+ mntdir_made = true;
+
+ if (mount(loopdev, mntdir, "btrfs", 0, NULL) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to mount loopback device: %m");
+ goto fail;
+ }
+ mntdir_mounted = true;
+
+ r = btrfs_quota_enable(mntdir, true);
+ if (r < 0)
+ log_warning_errno(r, "Failed to enable quota, ignoring: %m");
+
+ r = btrfs_subvol_auto_qgroup(mntdir, 0, true);
+ if (r < 0)
+ log_warning_errno(r, "Failed to set up default quota hierarchy, ignoring: %m");
+
+ if (chmod(mntdir, 0700) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to fix owner: %m");
+ goto fail;
+ }
+
+ (void) mkdir_p_label("/var/lib/machines", 0700);
+
+ if (mount(mntdir, "/var/lib/machines", NULL, MS_BIND, NULL) < 0) {
+ r = sd_bus_error_set_errnof(error, errno, "Failed to mount directory into right place: %m");
+ goto fail;
+ }
+
+ (void) syncfs(fd);
+
+ log_info("Set up /var/lib/machines as btrfs loopback file system of size %s mounted on /var/lib/machines.raw.", format_bytes(buf, sizeof(buf), size));
+
+ (void) umount2(mntdir, MNT_DETACH);
+ (void) rmdir(mntdir);
+ (void) rmdir(tmpdir);
+
+ return 1;
+
+fail:
+ if (mntdir_mounted)
+ (void) umount2(mntdir, MNT_DETACH);
+
+ if (mntdir_made)
+ (void) rmdir(mntdir);
+ if (tmpdir_made)
+ (void) rmdir(tmpdir);
+
+ if (loop >= 0) {
+ (void) ioctl(loop, LOOP_CLR_FD);
+ loop = safe_close(loop);
+ }
+
+ if (control >= 0 && nr >= 0)
+ (void) ioctl(control, LOOP_CTL_REMOVE, nr);
+
+ return r;
+}
+
+static int sync_path(const char *p) {
+ _cleanup_close_ int fd = -1;
+
+ fd = open(p, O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0)
+ return -errno;
+
+ if (syncfs(fd) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int grow_machine_directory(void) {
+ char buf[FORMAT_BYTES_MAX];
+ struct statvfs a, b;
+ uint64_t old_size, new_size, max_add;
+ int r;
+
+ /* Ensure the disk space data is accurate */
+ sync_path("/var/lib/machines");
+ sync_path("/var/lib/machines.raw");
+
+ if (statvfs("/var/lib/machines.raw", &a) < 0)
+ return -errno;
+
+ if (statvfs("/var/lib/machines", &b) < 0)
+ return -errno;
+
+ /* Don't grow if not enough disk space is available on the host */
+ if (((uint64_t) a.f_bavail * (uint64_t) a.f_bsize) <= VAR_LIB_MACHINES_FREE_MIN)
+ return 0;
+
+ /* Don't grow if at least 1/3th of the fs is still free */
+ if (b.f_bavail > b.f_blocks / 3)
+ return 0;
+
+ /* Calculate how much we are willing to add at most */
+ max_add = ((uint64_t) a.f_bavail * (uint64_t) a.f_bsize) - VAR_LIB_MACHINES_FREE_MIN;
+
+ /* Calculate the old size */
+ old_size = (uint64_t) b.f_blocks * (uint64_t) b.f_bsize;
+
+ /* Calculate the new size as three times the size of what is used right now */
+ new_size = ((uint64_t) b.f_blocks - (uint64_t) b.f_bavail) * (uint64_t) b.f_bsize * 3;
+
+ /* Always, grow at least to the start size */
+ if (new_size < VAR_LIB_MACHINES_SIZE_START)
+ new_size = VAR_LIB_MACHINES_SIZE_START;
+
+ /* If the new size is smaller than the old size, don't grow */
+ if (new_size < old_size)
+ return 0;
+
+ /* Ensure we never add more than the maximum */
+ if (new_size > old_size + max_add)
+ new_size = old_size + max_add;
+
+ r = btrfs_resize_loopback("/var/lib/machines", new_size, true);
+ if (r <= 0)
+ return r;
+
+ /* Also bump the quota, of both the subvolume leaf qgroup, as
+ * well as of any subtree quota group by the same id but a
+ * higher level, if it exists. */
+ (void) btrfs_qgroup_set_limit("/var/lib/machines", 0, new_size);
+ (void) btrfs_subvol_set_subtree_quota_limit("/var/lib/machines", 0, new_size);
+
+ log_info("Grew /var/lib/machines btrfs loopback file system to %s.", format_bytes(buf, sizeof(buf), new_size));
+ return 1;
+}
diff --git a/src/libsystemd-shared/src/output-mode.c b/src/libsystemd-shared/src/output-mode.c
new file mode 100644
index 0000000000..aa8f8fcbed
--- /dev/null
+++ b/src/libsystemd-shared/src/output-mode.c
@@ -0,0 +1,38 @@
+/***
+ 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 "systemd-basic/string-table.h"
+#include "systemd-shared/output-mode.h"
+
+static const char *const output_mode_table[_OUTPUT_MODE_MAX] = {
+ [OUTPUT_SHORT] = "short",
+ [OUTPUT_SHORT_FULL] = "short-full",
+ [OUTPUT_SHORT_ISO] = "short-iso",
+ [OUTPUT_SHORT_PRECISE] = "short-precise",
+ [OUTPUT_SHORT_MONOTONIC] = "short-monotonic",
+ [OUTPUT_SHORT_UNIX] = "short-unix",
+ [OUTPUT_VERBOSE] = "verbose",
+ [OUTPUT_EXPORT] = "export",
+ [OUTPUT_JSON] = "json",
+ [OUTPUT_JSON_PRETTY] = "json-pretty",
+ [OUTPUT_JSON_SSE] = "json-sse",
+ [OUTPUT_CAT] = "cat"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode);
diff --git a/src/libsystemd-shared/src/pager.c b/src/libsystemd-shared/src/pager.c
new file mode 100644
index 0000000000..7fb715c618
--- /dev/null
+++ b/src/libsystemd-shared/src/pager.c
@@ -0,0 +1,227 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+
+#include "systemd-basic/copy.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/locale-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-shared/pager.h"
+
+static pid_t pager_pid = 0;
+
+noreturn static void pager_fallback(void) {
+ int r;
+
+ r = copy_bytes(STDIN_FILENO, STDOUT_FILENO, (uint64_t) -1, false);
+ if (r < 0) {
+ log_error_errno(r, "Internal pager failed: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ _exit(EXIT_SUCCESS);
+}
+
+int pager_open(bool no_pager, bool jump_to_end) {
+ _cleanup_close_pair_ int fd[2] = { -1, -1 };
+ const char *pager;
+ pid_t parent_pid;
+
+ if (no_pager)
+ return 0;
+
+ if (pager_pid > 0)
+ return 1;
+
+ if (terminal_is_dumb())
+ return 0;
+
+ pager = getenv("SYSTEMD_PAGER");
+ if (!pager)
+ pager = getenv("PAGER");
+
+ /* If the pager is explicitly turned off, honour it */
+ if (pager && STR_IN_SET(pager, "", "cat"))
+ return 0;
+
+ /* Determine and cache number of columns before we spawn the
+ * pager so that we get the value from the actual tty */
+ (void) columns();
+
+ if (pipe(fd) < 0)
+ return log_error_errno(errno, "Failed to create pager pipe: %m");
+
+ parent_pid = getpid();
+
+ pager_pid = fork();
+ if (pager_pid < 0)
+ return log_error_errno(errno, "Failed to fork pager: %m");
+
+ /* In the child start the pager */
+ if (pager_pid == 0) {
+ const char* less_opts, *less_charset;
+
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
+
+ (void) dup2(fd[0], STDIN_FILENO);
+ safe_close_pair(fd);
+
+ /* Initialize a good set of less options */
+ less_opts = getenv("SYSTEMD_LESS");
+ if (!less_opts)
+ less_opts = "FRSXMK";
+ if (jump_to_end)
+ less_opts = strjoina(less_opts, " +G");
+ setenv("LESS", less_opts, 1);
+
+ /* Initialize a good charset for less. This is
+ * particularly important if we output UTF-8
+ * characters. */
+ less_charset = getenv("SYSTEMD_LESSCHARSET");
+ if (!less_charset && is_locale_utf8())
+ less_charset = "utf-8";
+ if (less_charset)
+ setenv("LESSCHARSET", less_charset, 1);
+
+ /* Make sure the pager goes away when the parent dies */
+ if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
+ _exit(EXIT_FAILURE);
+
+ /* Check whether our parent died before we were able
+ * to set the death signal */
+ if (getppid() != parent_pid)
+ _exit(EXIT_SUCCESS);
+
+ if (pager) {
+ execlp(pager, pager, NULL);
+ execl("/bin/sh", "sh", "-c", pager, NULL);
+ }
+
+ /* Debian's alternatives command for pagers is
+ * called 'pager'. Note that we do not call
+ * sensible-pagers here, since that is just a
+ * shell script that implements a logic that
+ * is similar to this one anyway, but is
+ * Debian-specific. */
+ execlp("pager", "pager", NULL);
+
+ execlp("less", "less", NULL);
+ execlp("more", "more", NULL);
+
+ pager_fallback();
+ /* not reached */
+ }
+
+ /* Return in the parent */
+ if (dup2(fd[1], STDOUT_FILENO) < 0)
+ return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
+ if (dup2(fd[1], STDERR_FILENO) < 0)
+ return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
+
+ return 1;
+}
+
+void pager_close(void) {
+
+ if (pager_pid <= 0)
+ return;
+
+ /* Inform pager that we are done */
+ stdout = safe_fclose(stdout);
+ stderr = safe_fclose(stderr);
+
+ (void) kill(pager_pid, SIGCONT);
+ (void) wait_for_terminate(pager_pid, NULL);
+ pager_pid = 0;
+}
+
+bool pager_have(void) {
+ return pager_pid > 0;
+}
+
+int show_man_page(const char *desc, bool null_stdio) {
+ const char *args[4] = { "man", NULL, NULL, NULL };
+ char *e = NULL;
+ pid_t pid;
+ size_t k;
+ int r;
+ siginfo_t status;
+
+ k = strlen(desc);
+
+ if (desc[k-1] == ')')
+ e = strrchr(desc, '(');
+
+ if (e) {
+ char *page = NULL, *section = NULL;
+
+ page = strndupa(desc, e - desc);
+ section = strndupa(e + 1, desc + k - e - 2);
+
+ args[1] = section;
+ args[2] = page;
+ } else
+ args[1] = desc;
+
+ pid = fork();
+ if (pid < 0)
+ return log_error_errno(errno, "Failed to fork: %m");
+
+ if (pid == 0) {
+ /* Child */
+
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
+
+ if (null_stdio) {
+ r = make_null_stdio();
+ if (r < 0) {
+ log_error_errno(r, "Failed to kill stdio: %m");
+ _exit(EXIT_FAILURE);
+ }
+ }
+
+ execvp(args[0], (char**) args);
+ log_error_errno(errno, "Failed to execute man: %m");
+ _exit(EXIT_FAILURE);
+ }
+
+ r = wait_for_terminate(pid, &status);
+ if (r < 0)
+ return r;
+
+ log_debug("Exit code %i status %i", status.si_code, status.si_status);
+ return status.si_status;
+}
diff --git a/src/libsystemd-shared/src/path-lookup.c b/src/libsystemd-shared/src/path-lookup.c
new file mode 100644
index 0000000000..58a9408b87
--- /dev/null
+++ b/src/libsystemd-shared/src/path-lookup.c
@@ -0,0 +1,822 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/rm-rf.h"
+#include "systemd-basic/stat-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/install.h"
+#include "systemd-shared/path-lookup.h"
+
+static int user_runtime_dir(char **ret, const char *suffix) {
+ const char *e;
+ char *j;
+
+ assert(ret);
+ assert(suffix);
+
+ e = getenv("XDG_RUNTIME_DIR");
+ if (!e)
+ return -ENXIO;
+
+ j = strappend(e, suffix);
+ if (!j)
+ return -ENOMEM;
+
+ *ret = j;
+ return 0;
+}
+
+static int user_config_dir(char **ret, const char *suffix) {
+ const char *e;
+ char *j;
+
+ assert(ret);
+
+ e = getenv("XDG_CONFIG_HOME");
+ if (e)
+ j = strappend(e, suffix);
+ else {
+ const char *home;
+
+ home = getenv("HOME");
+ if (!home)
+ return -ENXIO;
+
+ j = strjoin(home, "/.config", suffix, NULL);
+ }
+
+ if (!j)
+ return -ENOMEM;
+
+ *ret = j;
+ return 0;
+}
+
+static int user_data_dir(char **ret, const char *suffix) {
+ const char *e;
+ char *j;
+
+ assert(ret);
+ assert(suffix);
+
+ /* We don't treat /etc/xdg/systemd here as the spec
+ * suggests because we assume that is a link to
+ * /etc/systemd/ anyway. */
+
+ e = getenv("XDG_DATA_HOME");
+ if (e)
+ j = strappend(e, suffix);
+ else {
+ const char *home;
+
+ home = getenv("HOME");
+ if (!home)
+ return -ENXIO;
+
+
+ j = strjoin(home, "/.local/share", suffix, NULL);
+ }
+ if (!j)
+ return -ENOMEM;
+
+ *ret = j;
+ return 1;
+}
+
+static char** user_dirs(
+ const char *persistent_config,
+ const char *runtime_config,
+ const char *generator,
+ const char *generator_early,
+ const char *generator_late,
+ const char *transient,
+ const char *persistent_control,
+ const char *runtime_control) {
+
+ const char * const config_unit_paths[] = {
+ USER_CONFIG_UNIT_PATH,
+ "/etc/systemd/user",
+ NULL
+ };
+
+ const char * const data_unit_paths[] = {
+ "/usr/local/lib/systemd/user",
+ "/usr/local/share/systemd/user",
+ USER_DATA_UNIT_PATH,
+ "/usr/lib/systemd/user",
+ "/usr/share/systemd/user",
+ NULL
+ };
+
+ const char *e;
+ _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
+ _cleanup_free_ char *data_home = NULL;
+ _cleanup_free_ char **res = NULL;
+ char **tmp;
+ int r;
+
+ /* Implement the mechanisms defined in
+ *
+ * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
+ *
+ * We look in both the config and the data dirs because we
+ * want to encourage that distributors ship their unit files
+ * as data, and allow overriding as configuration.
+ */
+
+ e = getenv("XDG_CONFIG_DIRS");
+ if (e) {
+ config_dirs = strv_split(e, ":");
+ if (!config_dirs)
+ return NULL;
+ }
+
+ r = user_data_dir(&data_home, "/systemd/user");
+ if (r < 0 && r != -ENXIO)
+ return NULL;
+
+ e = getenv("XDG_DATA_DIRS");
+ if (e)
+ data_dirs = strv_split(e, ":");
+ else
+ data_dirs = strv_new("/usr/local/share",
+ "/usr/share",
+ NULL);
+ if (!data_dirs)
+ return NULL;
+
+ /* Now merge everything we found. */
+ if (strv_extend(&res, persistent_control) < 0)
+ return NULL;
+
+ if (strv_extend(&res, runtime_control) < 0)
+ return NULL;
+
+ if (strv_extend(&res, transient) < 0)
+ return NULL;
+
+ if (strv_extend(&res, generator_early) < 0)
+ return NULL;
+
+ if (!strv_isempty(config_dirs))
+ if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
+ return NULL;
+
+ if (strv_extend(&res, persistent_config) < 0)
+ return NULL;
+
+ if (strv_extend_strv(&res, (char**) config_unit_paths, false) < 0)
+ return NULL;
+
+ if (strv_extend(&res, runtime_config) < 0)
+ return NULL;
+
+ if (strv_extend(&res, generator) < 0)
+ return NULL;
+
+ if (strv_extend(&res, data_home) < 0)
+ return NULL;
+
+ if (!strv_isempty(data_dirs))
+ if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0)
+ return NULL;
+
+ if (strv_extend_strv(&res, (char**) data_unit_paths, false) < 0)
+ return NULL;
+
+ if (strv_extend(&res, generator_late) < 0)
+ return NULL;
+
+ if (path_strv_make_absolute_cwd(res) < 0)
+ return NULL;
+
+ tmp = res;
+ res = NULL;
+ return tmp;
+}
+
+static int acquire_generator_dirs(
+ UnitFileScope scope,
+ char **generator,
+ char **generator_early,
+ char **generator_late) {
+
+ _cleanup_free_ char *x = NULL, *y = NULL, *z = NULL;
+ const char *prefix;
+
+ assert(generator);
+ assert(generator_early);
+ assert(generator_late);
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ prefix = "/run/systemd/";
+ break;
+
+ case UNIT_FILE_USER: {
+ const char *e;
+
+ e = getenv("XDG_RUNTIME_DIR");
+ if (!e)
+ return -ENXIO;
+
+ prefix = strjoina(e, "/systemd/");
+ break;
+ }
+
+ case UNIT_FILE_GLOBAL:
+ return -EOPNOTSUPP;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope value.");
+ }
+
+ x = strappend(prefix, "generator");
+ if (!x)
+ return -ENOMEM;
+
+ y = strappend(prefix, "generator.early");
+ if (!y)
+ return -ENOMEM;
+
+ z = strappend(prefix, "generator.late");
+ if (!z)
+ return -ENOMEM;
+
+ *generator = x;
+ *generator_early = y;
+ *generator_late = z;
+
+ x = y = z = NULL;
+ return 0;
+}
+
+static int acquire_transient_dir(UnitFileScope scope, char **ret) {
+ assert(ret);
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM: {
+ char *transient;
+
+ transient = strdup("/run/systemd/transient");
+ if (!transient)
+ return -ENOMEM;
+
+ *ret = transient;
+ return 0;
+ }
+
+ case UNIT_FILE_USER:
+ return user_runtime_dir(ret, "/systemd/transient");
+
+ case UNIT_FILE_GLOBAL:
+ return -EOPNOTSUPP;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope value.");
+ }
+}
+
+static int acquire_config_dirs(UnitFileScope scope, char **persistent, char **runtime) {
+ _cleanup_free_ char *a = NULL, *b = NULL;
+ int r;
+
+ assert(persistent);
+ assert(runtime);
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ a = strdup(SYSTEM_CONFIG_UNIT_PATH);
+ b = strdup("/run/systemd/system");
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ a = strdup(USER_CONFIG_UNIT_PATH);
+ b = strdup("/run/systemd/user");
+ break;
+
+ case UNIT_FILE_USER:
+ r = user_config_dir(&a, "/systemd/user");
+ if (r < 0)
+ return r;
+
+ r = user_runtime_dir(runtime, "/systemd/user");
+ if (r < 0)
+ return r;
+
+ *persistent = a;
+ a = NULL;
+
+ return 0;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope value.");
+ }
+
+ if (!a || !b)
+ return -ENOMEM;
+
+ *persistent = a;
+ *runtime = b;
+ a = b = NULL;
+
+ return 0;
+}
+
+static int acquire_control_dirs(UnitFileScope scope, char **persistent, char **runtime) {
+ _cleanup_free_ char *a = NULL;
+ int r;
+
+ assert(persistent);
+ assert(runtime);
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM: {
+ _cleanup_free_ char *b = NULL;
+
+ a = strdup("/etc/systemd/system.control");
+ if (!a)
+ return -ENOMEM;
+
+ b = strdup("/run/systemd/system.control");
+ if (!b)
+ return -ENOMEM;
+
+ *runtime = b;
+ b = NULL;
+
+ break;
+ }
+
+ case UNIT_FILE_USER:
+ r = user_config_dir(&a, "/systemd/system.control");
+ if (r < 0)
+ return r;
+
+ r = user_runtime_dir(runtime, "/systemd/system.control");
+ if (r < 0)
+ return r;
+
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ return -EOPNOTSUPP;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope value.");
+ }
+
+ *persistent = a;
+ a = NULL;
+
+ return 0;
+}
+
+static int patch_root_prefix(char **p, const char *root_dir) {
+ char *c;
+
+ assert(p);
+
+ if (!*p)
+ return 0;
+
+ c = prefix_root(root_dir, *p);
+ if (!c)
+ return -ENOMEM;
+
+ free(*p);
+ *p = c;
+
+ return 0;
+}
+
+static int patch_root_prefix_strv(char **l, const char *root_dir) {
+ char **i;
+ int r;
+
+ if (!root_dir)
+ return 0;
+
+ STRV_FOREACH(i, l) {
+ r = patch_root_prefix(i, root_dir);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int lookup_paths_init(
+ LookupPaths *p,
+ UnitFileScope scope,
+ LookupPathsFlags flags,
+ const char *root_dir) {
+
+ _cleanup_free_ char
+ *root = NULL,
+ *persistent_config = NULL, *runtime_config = NULL,
+ *generator = NULL, *generator_early = NULL, *generator_late = NULL,
+ *transient = NULL,
+ *persistent_control = NULL, *runtime_control = NULL;
+ bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */
+ _cleanup_strv_free_ char **paths = NULL;
+ const char *e;
+ int r;
+
+ assert(p);
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+ if (!isempty(root_dir) && !path_equal(root_dir, "/")) {
+ if (scope == UNIT_FILE_USER)
+ return -EINVAL;
+
+ r = is_dir(root_dir, true);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOTDIR;
+
+ root = strdup(root_dir);
+ if (!root)
+ return -ENOMEM;
+ }
+
+ r = acquire_config_dirs(scope, &persistent_config, &runtime_config);
+ if (r < 0 && r != -ENXIO)
+ return r;
+
+ if ((flags & LOOKUP_PATHS_EXCLUDE_GENERATED) == 0) {
+ r = acquire_generator_dirs(scope, &generator, &generator_early, &generator_late);
+ if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO)
+ return r;
+ }
+
+ r = acquire_transient_dir(scope, &transient);
+ if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO)
+ return r;
+
+ r = acquire_control_dirs(scope, &persistent_control, &runtime_control);
+ if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO)
+ return r;
+
+ /* First priority is whatever has been passed to us via env vars */
+ e = getenv("SYSTEMD_UNIT_PATH");
+ if (e) {
+ const char *k;
+
+ k = endswith(e, ":");
+ if (k) {
+ e = strndupa(e, k - e);
+ append = true;
+ }
+
+ /* FIXME: empty components in other places should be
+ * rejected. */
+
+ r = path_split_and_make_absolute(e, &paths);
+ if (r < 0)
+ return r;
+ }
+
+ if (!paths || append) {
+ /* Let's figure something out. */
+
+ _cleanup_strv_free_ char **add = NULL;
+
+ /* For the user units we include share/ in the search
+ * path in order to comply with the XDG basedir spec.
+ * For the system stuff we avoid such nonsense. OTOH
+ * we include /lib in the search path for the system
+ * stuff but avoid it for user stuff. */
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ add = strv_new(
+ /* If you modify this you also want to modify
+ * systemdsystemunitpath= in systemd.pc.in! */
+ STRV_IFNOTNULL(persistent_control),
+ STRV_IFNOTNULL(runtime_control),
+ STRV_IFNOTNULL(transient),
+ STRV_IFNOTNULL(generator_early),
+ persistent_config,
+ SYSTEM_CONFIG_UNIT_PATH,
+ "/etc/systemd/system",
+ runtime_config,
+ "/run/systemd/system",
+ STRV_IFNOTNULL(generator),
+ "/usr/local/lib/systemd/system",
+ SYSTEM_DATA_UNIT_PATH,
+ "/usr/lib/systemd/system",
+#ifdef HAVE_SPLIT_USR
+ "/lib/systemd/system",
+#endif
+ STRV_IFNOTNULL(generator_late),
+ NULL);
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ add = strv_new(
+ /* If you modify this you also want to modify
+ * systemduserunitpath= in systemd.pc.in, and
+ * the arrays in user_dirs() above! */
+ STRV_IFNOTNULL(persistent_control),
+ STRV_IFNOTNULL(runtime_control),
+ STRV_IFNOTNULL(transient),
+ STRV_IFNOTNULL(generator_early),
+ persistent_config,
+ USER_CONFIG_UNIT_PATH,
+ "/etc/systemd/user",
+ runtime_config,
+ "/run/systemd/user",
+ STRV_IFNOTNULL(generator),
+ "/usr/local/lib/systemd/user",
+ "/usr/local/share/systemd/user",
+ USER_DATA_UNIT_PATH,
+ "/usr/lib/systemd/user",
+ "/usr/share/systemd/user",
+ STRV_IFNOTNULL(generator_late),
+ NULL);
+ break;
+
+ case UNIT_FILE_USER:
+ add = user_dirs(persistent_config, runtime_config,
+ generator, generator_early, generator_late,
+ transient,
+ persistent_config, runtime_control);
+ break;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope?");
+ }
+
+ if (!add)
+ return -ENOMEM;
+
+ if (paths) {
+ r = strv_extend_strv(&paths, add, true);
+ if (r < 0)
+ return r;
+ } else {
+ /* Small optimization: if paths is NULL (and it usually is), we can simply assign 'add' to it,
+ * and don't have to copy anything */
+ paths = add;
+ add = NULL;
+ }
+ }
+
+ r = patch_root_prefix(&persistent_config, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&runtime_config, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&generator, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&generator_early, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&generator_late, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&transient, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&persistent_control, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&runtime_control, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix_strv(paths, root);
+ if (r < 0)
+ return -ENOMEM;
+
+ p->search_path = strv_uniq(paths);
+ paths = NULL;
+
+ p->persistent_config = persistent_config;
+ p->runtime_config = runtime_config;
+ persistent_config = runtime_config = NULL;
+
+ p->generator = generator;
+ p->generator_early = generator_early;
+ p->generator_late = generator_late;
+ generator = generator_early = generator_late = NULL;
+
+ p->transient = transient;
+ transient = NULL;
+
+ p->persistent_control = persistent_control;
+ p->runtime_control = runtime_control;
+ persistent_control = runtime_control = NULL;
+
+ p->root_dir = root;
+ root = NULL;
+
+ return 0;
+}
+
+void lookup_paths_free(LookupPaths *p) {
+ if (!p)
+ return;
+
+ p->search_path = strv_free(p->search_path);
+
+ p->persistent_config = mfree(p->persistent_config);
+ p->runtime_config = mfree(p->runtime_config);
+
+ p->generator = mfree(p->generator);
+ p->generator_early = mfree(p->generator_early);
+ p->generator_late = mfree(p->generator_late);
+
+ p->transient = mfree(p->transient);
+
+ p->persistent_control = mfree(p->persistent_control);
+ p->runtime_control = mfree(p->runtime_control);
+
+ p->root_dir = mfree(p->root_dir);
+}
+
+int lookup_paths_reduce(LookupPaths *p) {
+ _cleanup_free_ struct stat *stats = NULL;
+ size_t n_stats = 0, allocated = 0;
+ unsigned c = 0;
+ int r;
+
+ assert(p);
+
+ /* Drop duplicates and non-existing directories from the search path. We figure out whether two directories are
+ * the same by comparing their device and inode numbers. Note one special tweak: when we have a root path set,
+ * we do not follow symlinks when retrieving them, because the kernel wouldn't take the root prefix into
+ * account when following symlinks. When we have no root path set this restriction does not apply however. */
+
+ if (!p->search_path)
+ return 0;
+
+ while (p->search_path[c]) {
+ struct stat st;
+ unsigned k;
+
+ if (p->root_dir)
+ r = lstat(p->search_path[c], &st);
+ else
+ r = stat(p->search_path[c], &st);
+ if (r < 0) {
+ if (errno == ENOENT)
+ goto remove_item;
+
+ /* If something we don't grok happened, let's better leave it in. */
+ log_debug_errno(errno, "Failed to stat %s: %m", p->search_path[c]);
+ c++;
+ continue;
+ }
+
+ for (k = 0; k < n_stats; k++) {
+ if (stats[k].st_dev == st.st_dev &&
+ stats[k].st_ino == st.st_ino)
+ break;
+ }
+
+ if (k < n_stats) /* Is there already an entry with the same device/inode? */
+ goto remove_item;
+
+ if (!GREEDY_REALLOC(stats, allocated, n_stats+1))
+ return -ENOMEM;
+
+ stats[n_stats++] = st;
+ c++;
+ continue;
+
+ remove_item:
+ free(p->search_path[c]);
+ memmove(p->search_path + c,
+ p->search_path + c + 1,
+ (strv_length(p->search_path + c + 1) + 1) * sizeof(char*));
+ }
+
+ if (strv_isempty(p->search_path)) {
+ log_debug("Ignoring unit files.");
+ p->search_path = strv_free(p->search_path);
+ } else {
+ _cleanup_free_ char *t;
+
+ t = strv_join(p->search_path, "\n\t");
+ if (!t)
+ return -ENOMEM;
+
+ log_debug("Looking for unit files in (higher priority first):\n\t%s", t);
+ }
+
+ return 0;
+}
+
+int lookup_paths_mkdir_generator(LookupPaths *p) {
+ int r, q;
+
+ assert(p);
+
+ if (!p->generator || !p->generator_early || !p->generator_late)
+ return -EINVAL;
+
+ r = mkdir_p_label(p->generator, 0755);
+
+ q = mkdir_p_label(p->generator_early, 0755);
+ if (q < 0 && r >= 0)
+ r = q;
+
+ q = mkdir_p_label(p->generator_late, 0755);
+ if (q < 0 && r >= 0)
+ r = q;
+
+ return r;
+}
+
+void lookup_paths_trim_generator(LookupPaths *p) {
+ assert(p);
+
+ /* Trim empty dirs */
+
+ if (p->generator)
+ (void) rmdir(p->generator);
+ if (p->generator_early)
+ (void) rmdir(p->generator_early);
+ if (p->generator_late)
+ (void) rmdir(p->generator_late);
+}
+
+void lookup_paths_flush_generator(LookupPaths *p) {
+ assert(p);
+
+ /* Flush the generated unit files in full */
+
+ if (p->generator)
+ (void) rm_rf(p->generator, REMOVE_ROOT);
+ if (p->generator_early)
+ (void) rm_rf(p->generator_early, REMOVE_ROOT);
+ if (p->generator_late)
+ (void) rm_rf(p->generator_late, REMOVE_ROOT);
+}
+
+char **generator_binary_paths(UnitFileScope scope) {
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ return strv_new("/run/systemd/system-generators",
+ "/etc/systemd/system-generators",
+ "/usr/local/lib/systemd/system-generators",
+ SYSTEM_GENERATOR_PATH,
+ NULL);
+
+ case UNIT_FILE_GLOBAL:
+ case UNIT_FILE_USER:
+ return strv_new("/run/systemd/user-generators",
+ "/etc/systemd/user-generators",
+ "/usr/local/lib/systemd/user-generators",
+ USER_GENERATOR_PATH,
+ NULL);
+
+ default:
+ assert_not_reached("Hmm, unexpected scope.");
+ }
+}
diff --git a/src/libsystemd-shared/src/ptyfwd.c b/src/libsystemd-shared/src/ptyfwd.c
new file mode 100644
index 0000000000..ae55879149
--- /dev/null
+++ b/src/libsystemd-shared/src/ptyfwd.c
@@ -0,0 +1,521 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2013 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 <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include <systemd/sd-event.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-shared/ptyfwd.h"
+
+struct PTYForward {
+ sd_event *event;
+
+ int master;
+
+ PTYForwardFlags flags;
+
+ sd_event_source *stdin_event_source;
+ sd_event_source *stdout_event_source;
+ sd_event_source *master_event_source;
+
+ sd_event_source *sigwinch_event_source;
+
+ struct termios saved_stdin_attr;
+ struct termios saved_stdout_attr;
+
+ bool saved_stdin:1;
+ bool saved_stdout:1;
+
+ bool stdin_readable:1;
+ bool stdin_hangup:1;
+ bool stdout_writable:1;
+ bool stdout_hangup:1;
+ bool master_readable:1;
+ bool master_writable:1;
+ bool master_hangup:1;
+
+ bool read_from_master:1;
+
+ bool done:1;
+
+ bool last_char_set:1;
+ char last_char;
+
+ char in_buffer[LINE_MAX], out_buffer[LINE_MAX];
+ size_t in_buffer_full, out_buffer_full;
+
+ usec_t escape_timestamp;
+ unsigned escape_counter;
+
+ PTYForwardHandler handler;
+ void *userdata;
+};
+
+#define ESCAPE_USEC (1*USEC_PER_SEC)
+
+static void pty_forward_disconnect(PTYForward *f) {
+
+ if (f) {
+ f->stdin_event_source = sd_event_source_unref(f->stdin_event_source);
+ f->stdout_event_source = sd_event_source_unref(f->stdout_event_source);
+
+ f->master_event_source = sd_event_source_unref(f->master_event_source);
+ f->sigwinch_event_source = sd_event_source_unref(f->sigwinch_event_source);
+ f->event = sd_event_unref(f->event);
+
+ if (f->saved_stdout)
+ tcsetattr(STDOUT_FILENO, TCSANOW, &f->saved_stdout_attr);
+ if (f->saved_stdin)
+ tcsetattr(STDIN_FILENO, TCSANOW, &f->saved_stdin_attr);
+
+ f->saved_stdout = f->saved_stdin = false;
+ }
+
+ /* STDIN/STDOUT should not be nonblocking normally, so let's unconditionally reset it */
+ fd_nonblock(STDIN_FILENO, false);
+ fd_nonblock(STDOUT_FILENO, false);
+}
+
+static int pty_forward_done(PTYForward *f, int rcode) {
+ _cleanup_(sd_event_unrefp) sd_event *e = NULL;
+ assert(f);
+
+ if (f->done)
+ return 0;
+
+ e = sd_event_ref(f->event);
+
+ f->done = true;
+ pty_forward_disconnect(f);
+
+ if (f->handler)
+ return f->handler(f, rcode, f->userdata);
+ else
+ return sd_event_exit(e, rcode < 0 ? EXIT_FAILURE : rcode);
+}
+
+static bool look_for_escape(PTYForward *f, const char *buffer, size_t n) {
+ const char *p;
+
+ assert(f);
+ assert(buffer);
+ assert(n > 0);
+
+ for (p = buffer; p < buffer + n; p++) {
+
+ /* Check for ^] */
+ if (*p == 0x1D) {
+ usec_t nw = now(CLOCK_MONOTONIC);
+
+ if (f->escape_counter == 0 || nw > f->escape_timestamp + ESCAPE_USEC) {
+ f->escape_timestamp = nw;
+ f->escape_counter = 1;
+ } else {
+ (f->escape_counter)++;
+
+ if (f->escape_counter >= 3)
+ return true;
+ }
+ } else {
+ f->escape_timestamp = 0;
+ f->escape_counter = 0;
+ }
+ }
+
+ return false;
+}
+
+static bool ignore_vhangup(PTYForward *f) {
+ assert(f);
+
+ if (f->flags & PTY_FORWARD_IGNORE_VHANGUP)
+ return true;
+
+ if ((f->flags & PTY_FORWARD_IGNORE_INITIAL_VHANGUP) && !f->read_from_master)
+ return true;
+
+ return false;
+}
+
+static int shovel(PTYForward *f) {
+ ssize_t k;
+
+ assert(f);
+
+ while ((f->stdin_readable && f->in_buffer_full <= 0) ||
+ (f->master_writable && f->in_buffer_full > 0) ||
+ (f->master_readable && f->out_buffer_full <= 0) ||
+ (f->stdout_writable && f->out_buffer_full > 0)) {
+
+ if (f->stdin_readable && f->in_buffer_full < LINE_MAX) {
+
+ k = read(STDIN_FILENO, f->in_buffer + f->in_buffer_full, LINE_MAX - f->in_buffer_full);
+ if (k < 0) {
+
+ if (errno == EAGAIN)
+ f->stdin_readable = false;
+ else if (errno == EIO || errno == EPIPE || errno == ECONNRESET) {
+ f->stdin_readable = false;
+ f->stdin_hangup = true;
+
+ f->stdin_event_source = sd_event_source_unref(f->stdin_event_source);
+ } else {
+ log_error_errno(errno, "read(): %m");
+ return pty_forward_done(f, -errno);
+ }
+ } else if (k == 0) {
+ /* EOF on stdin */
+ f->stdin_readable = false;
+ f->stdin_hangup = true;
+
+ f->stdin_event_source = sd_event_source_unref(f->stdin_event_source);
+ } else {
+ /* Check if ^] has been pressed three times within one second. If we get this we quite
+ * immediately. */
+ if (look_for_escape(f, f->in_buffer + f->in_buffer_full, k))
+ return pty_forward_done(f, -ECANCELED);
+
+ f->in_buffer_full += (size_t) k;
+ }
+ }
+
+ if (f->master_writable && f->in_buffer_full > 0) {
+
+ k = write(f->master, f->in_buffer, f->in_buffer_full);
+ if (k < 0) {
+
+ if (errno == EAGAIN || errno == EIO)
+ f->master_writable = false;
+ else if (errno == EPIPE || errno == ECONNRESET) {
+ f->master_writable = f->master_readable = false;
+ f->master_hangup = true;
+
+ f->master_event_source = sd_event_source_unref(f->master_event_source);
+ } else {
+ log_error_errno(errno, "write(): %m");
+ return pty_forward_done(f, -errno);
+ }
+ } else {
+ assert(f->in_buffer_full >= (size_t) k);
+ memmove(f->in_buffer, f->in_buffer + k, f->in_buffer_full - k);
+ f->in_buffer_full -= k;
+ }
+ }
+
+ if (f->master_readable && f->out_buffer_full < LINE_MAX) {
+
+ k = read(f->master, f->out_buffer + f->out_buffer_full, LINE_MAX - f->out_buffer_full);
+ if (k < 0) {
+
+ /* Note that EIO on the master device
+ * might be caused by vhangup() or
+ * temporary closing of everything on
+ * the other side, we treat it like
+ * EAGAIN here and try again, unless
+ * ignore_vhangup is off. */
+
+ if (errno == EAGAIN || (errno == EIO && ignore_vhangup(f)))
+ f->master_readable = false;
+ else if (errno == EPIPE || errno == ECONNRESET || errno == EIO) {
+ f->master_readable = f->master_writable = false;
+ f->master_hangup = true;
+
+ f->master_event_source = sd_event_source_unref(f->master_event_source);
+ } else {
+ log_error_errno(errno, "read(): %m");
+ return pty_forward_done(f, -errno);
+ }
+ } else {
+ f->read_from_master = true;
+ f->out_buffer_full += (size_t) k;
+ }
+ }
+
+ if (f->stdout_writable && f->out_buffer_full > 0) {
+
+ k = write(STDOUT_FILENO, f->out_buffer, f->out_buffer_full);
+ if (k < 0) {
+
+ if (errno == EAGAIN)
+ f->stdout_writable = false;
+ else if (errno == EIO || errno == EPIPE || errno == ECONNRESET) {
+ f->stdout_writable = false;
+ f->stdout_hangup = true;
+ f->stdout_event_source = sd_event_source_unref(f->stdout_event_source);
+ } else {
+ log_error_errno(errno, "write(): %m");
+ return pty_forward_done(f, -errno);
+ }
+
+ } else {
+
+ if (k > 0) {
+ f->last_char = f->out_buffer[k-1];
+ f->last_char_set = true;
+ }
+
+ assert(f->out_buffer_full >= (size_t) k);
+ memmove(f->out_buffer, f->out_buffer + k, f->out_buffer_full - k);
+ f->out_buffer_full -= k;
+ }
+ }
+ }
+
+ if (f->stdin_hangup || f->stdout_hangup || f->master_hangup) {
+ /* Exit the loop if any side hung up and if there's
+ * nothing more to write or nothing we could write. */
+
+ if ((f->out_buffer_full <= 0 || f->stdout_hangup) &&
+ (f->in_buffer_full <= 0 || f->master_hangup))
+ return pty_forward_done(f, 0);
+ }
+
+ return 0;
+}
+
+static int on_master_event(sd_event_source *e, int fd, uint32_t revents, void *userdata) {
+ PTYForward *f = userdata;
+
+ assert(f);
+ assert(e);
+ assert(e == f->master_event_source);
+ assert(fd >= 0);
+ assert(fd == f->master);
+
+ if (revents & (EPOLLIN|EPOLLHUP))
+ f->master_readable = true;
+
+ if (revents & (EPOLLOUT|EPOLLHUP))
+ f->master_writable = true;
+
+ return shovel(f);
+}
+
+static int on_stdin_event(sd_event_source *e, int fd, uint32_t revents, void *userdata) {
+ PTYForward *f = userdata;
+
+ assert(f);
+ assert(e);
+ assert(e == f->stdin_event_source);
+ assert(fd >= 0);
+ assert(fd == STDIN_FILENO);
+
+ if (revents & (EPOLLIN|EPOLLHUP))
+ f->stdin_readable = true;
+
+ return shovel(f);
+}
+
+static int on_stdout_event(sd_event_source *e, int fd, uint32_t revents, void *userdata) {
+ PTYForward *f = userdata;
+
+ assert(f);
+ assert(e);
+ assert(e == f->stdout_event_source);
+ assert(fd >= 0);
+ assert(fd == STDOUT_FILENO);
+
+ if (revents & (EPOLLOUT|EPOLLHUP))
+ f->stdout_writable = true;
+
+ return shovel(f);
+}
+
+static int on_sigwinch_event(sd_event_source *e, const struct signalfd_siginfo *si, void *userdata) {
+ PTYForward *f = userdata;
+ struct winsize ws;
+
+ assert(f);
+ assert(e);
+ assert(e == f->sigwinch_event_source);
+
+ /* The window size changed, let's forward that. */
+ if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0)
+ (void) ioctl(f->master, TIOCSWINSZ, &ws);
+
+ return 0;
+}
+
+int pty_forward_new(
+ sd_event *event,
+ int master,
+ PTYForwardFlags flags,
+ PTYForward **ret) {
+
+ _cleanup_(pty_forward_freep) PTYForward *f = NULL;
+ struct winsize ws;
+ int r;
+
+ f = new0(PTYForward, 1);
+ if (!f)
+ return -ENOMEM;
+
+ f->flags = flags;
+
+ if (event)
+ f->event = sd_event_ref(event);
+ else {
+ r = sd_event_default(&f->event);
+ if (r < 0)
+ return r;
+ }
+
+ if (!(flags & PTY_FORWARD_READ_ONLY)) {
+ r = fd_nonblock(STDIN_FILENO, true);
+ if (r < 0)
+ return r;
+
+ r = fd_nonblock(STDOUT_FILENO, true);
+ if (r < 0)
+ return r;
+ }
+
+ r = fd_nonblock(master, true);
+ if (r < 0)
+ return r;
+
+ f->master = master;
+
+ if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0)
+ (void) ioctl(master, TIOCSWINSZ, &ws);
+
+ if (!(flags & PTY_FORWARD_READ_ONLY)) {
+ if (tcgetattr(STDIN_FILENO, &f->saved_stdin_attr) >= 0) {
+ struct termios raw_stdin_attr;
+
+ f->saved_stdin = true;
+
+ raw_stdin_attr = f->saved_stdin_attr;
+ cfmakeraw(&raw_stdin_attr);
+ raw_stdin_attr.c_oflag = f->saved_stdin_attr.c_oflag;
+ tcsetattr(STDIN_FILENO, TCSANOW, &raw_stdin_attr);
+ }
+
+ if (tcgetattr(STDOUT_FILENO, &f->saved_stdout_attr) >= 0) {
+ struct termios raw_stdout_attr;
+
+ f->saved_stdout = true;
+
+ raw_stdout_attr = f->saved_stdout_attr;
+ cfmakeraw(&raw_stdout_attr);
+ raw_stdout_attr.c_iflag = f->saved_stdout_attr.c_iflag;
+ raw_stdout_attr.c_lflag = f->saved_stdout_attr.c_lflag;
+ tcsetattr(STDOUT_FILENO, TCSANOW, &raw_stdout_attr);
+ }
+
+ r = sd_event_add_io(f->event, &f->stdin_event_source, STDIN_FILENO, EPOLLIN|EPOLLET, on_stdin_event, f);
+ if (r < 0 && r != -EPERM)
+ return r;
+ }
+
+ r = sd_event_add_io(f->event, &f->stdout_event_source, STDOUT_FILENO, EPOLLOUT|EPOLLET, on_stdout_event, f);
+ if (r == -EPERM)
+ /* stdout without epoll support. Likely redirected to regular file. */
+ f->stdout_writable = true;
+ else if (r < 0)
+ return r;
+
+ r = sd_event_add_io(f->event, &f->master_event_source, master, EPOLLIN|EPOLLOUT|EPOLLET, on_master_event, f);
+ if (r < 0)
+ return r;
+
+ r = sd_event_add_signal(f->event, &f->sigwinch_event_source, SIGWINCH, on_sigwinch_event, f);
+ if (r < 0)
+ return r;
+
+ *ret = f;
+ f = NULL;
+
+ return 0;
+}
+
+PTYForward *pty_forward_free(PTYForward *f) {
+ pty_forward_disconnect(f);
+ return mfree(f);
+}
+
+int pty_forward_get_last_char(PTYForward *f, char *ch) {
+ assert(f);
+ assert(ch);
+
+ if (!f->last_char_set)
+ return -ENXIO;
+
+ *ch = f->last_char;
+ return 0;
+}
+
+int pty_forward_set_ignore_vhangup(PTYForward *f, bool b) {
+ int r;
+
+ assert(f);
+
+ if (!!(f->flags & PTY_FORWARD_IGNORE_VHANGUP) == b)
+ return 0;
+
+ SET_FLAG(f->flags, PTY_FORWARD_IGNORE_VHANGUP, b);
+
+ if (!ignore_vhangup(f)) {
+
+ /* We shall now react to vhangup()s? Let's check
+ * immediately if we might be in one */
+
+ f->master_readable = true;
+ r = shovel(f);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+bool pty_forward_get_ignore_vhangup(PTYForward *f) {
+ assert(f);
+
+ return !!(f->flags & PTY_FORWARD_IGNORE_VHANGUP);
+}
+
+bool pty_forward_is_done(PTYForward *f) {
+ assert(f);
+
+ return f->done;
+}
+
+void pty_forward_set_handler(PTYForward *f, PTYForwardHandler cb, void *userdata) {
+ assert(f);
+
+ f->handler = cb;
+ f->userdata = userdata;
+}
diff --git a/src/libsystemd-shared/src/resolve-util.c b/src/libsystemd-shared/src/resolve-util.c
new file mode 100644
index 0000000000..ff49cdbccd
--- /dev/null
+++ b/src/libsystemd-shared/src/resolve-util.c
@@ -0,0 +1,39 @@
+/***
+ 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/>.
+***/
+
+#include "systemd-basic/string-table.h"
+#include "systemd-shared/conf-parser.h"
+#include "systemd-shared/resolve-util.h"
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_resolve_support, resolve_support, ResolveSupport, "Failed to parse resolve support setting");
+DEFINE_CONFIG_PARSE_ENUM(config_parse_dnssec_mode, dnssec_mode, DnssecMode, "Failed to parse DNSSEC mode setting");
+
+static const char* const resolve_support_table[_RESOLVE_SUPPORT_MAX] = {
+ [RESOLVE_SUPPORT_NO] = "no",
+ [RESOLVE_SUPPORT_YES] = "yes",
+ [RESOLVE_SUPPORT_RESOLVE] = "resolve",
+};
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(resolve_support, ResolveSupport, RESOLVE_SUPPORT_YES);
+
+static const char* const dnssec_mode_table[_DNSSEC_MODE_MAX] = {
+ [DNSSEC_NO] = "no",
+ [DNSSEC_ALLOW_DOWNGRADE] = "allow-downgrade",
+ [DNSSEC_YES] = "yes",
+};
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dnssec_mode, DnssecMode, DNSSEC_YES);
diff --git a/src/libsystemd-shared/src/seccomp-util.c b/src/libsystemd-shared/src/seccomp-util.c
new file mode 100644
index 0000000000..bcb55e3777
--- /dev/null
+++ b/src/libsystemd-shared/src/seccomp-util.c
@@ -0,0 +1,579 @@
+/***
+ 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 <errno.h>
+#include <seccomp.h>
+#include <stddef.h>
+#include <sys/prctl.h>
+
+#include <linux/seccomp.h>
+
+#include "systemd-basic/macro.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/seccomp-util.h"
+
+const char* seccomp_arch_to_string(uint32_t c) {
+ /* Maintain order used in <seccomp.h>.
+ *
+ * Names used here should be the same as those used for ConditionArchitecture=,
+ * except for "subarchitectures" like x32. */
+
+ switch(c) {
+ case SCMP_ARCH_NATIVE:
+ return "native";
+ case SCMP_ARCH_X86:
+ return "x86";
+ case SCMP_ARCH_X86_64:
+ return "x86-64";
+ case SCMP_ARCH_X32:
+ return "x32";
+ case SCMP_ARCH_ARM:
+ return "arm";
+ case SCMP_ARCH_AARCH64:
+ return "arm64";
+ case SCMP_ARCH_MIPS:
+ return "mips";
+ case SCMP_ARCH_MIPS64:
+ return "mips64";
+ case SCMP_ARCH_MIPS64N32:
+ return "mips64-n32";
+ case SCMP_ARCH_MIPSEL:
+ return "mips-le";
+ case SCMP_ARCH_MIPSEL64:
+ return "mips64-le";
+ case SCMP_ARCH_MIPSEL64N32:
+ return "mips64-le-n32";
+ case SCMP_ARCH_PPC:
+ return "ppc";
+ case SCMP_ARCH_PPC64:
+ return "ppc64";
+ case SCMP_ARCH_PPC64LE:
+ return "ppc64-le";
+ case SCMP_ARCH_S390:
+ return "s390";
+ case SCMP_ARCH_S390X:
+ return "s390x";
+ default:
+ return NULL;
+ }
+}
+
+int seccomp_arch_from_string(const char *n, uint32_t *ret) {
+ if (!n)
+ return -EINVAL;
+
+ assert(ret);
+
+ if (streq(n, "native"))
+ *ret = SCMP_ARCH_NATIVE;
+ else if (streq(n, "x86"))
+ *ret = SCMP_ARCH_X86;
+ else if (streq(n, "x86-64"))
+ *ret = SCMP_ARCH_X86_64;
+ else if (streq(n, "x32"))
+ *ret = SCMP_ARCH_X32;
+ else if (streq(n, "arm"))
+ *ret = SCMP_ARCH_ARM;
+ else if (streq(n, "arm64"))
+ *ret = SCMP_ARCH_AARCH64;
+ else if (streq(n, "mips"))
+ *ret = SCMP_ARCH_MIPS;
+ else if (streq(n, "mips64"))
+ *ret = SCMP_ARCH_MIPS64;
+ else if (streq(n, "mips64-n32"))
+ *ret = SCMP_ARCH_MIPS64N32;
+ else if (streq(n, "mips-le"))
+ *ret = SCMP_ARCH_MIPSEL;
+ else if (streq(n, "mips64-le"))
+ *ret = SCMP_ARCH_MIPSEL64;
+ else if (streq(n, "mips64-le-n32"))
+ *ret = SCMP_ARCH_MIPSEL64N32;
+ else if (streq(n, "ppc"))
+ *ret = SCMP_ARCH_PPC;
+ else if (streq(n, "ppc64"))
+ *ret = SCMP_ARCH_PPC64;
+ else if (streq(n, "ppc64-le"))
+ *ret = SCMP_ARCH_PPC64LE;
+ else if (streq(n, "s390"))
+ *ret = SCMP_ARCH_S390;
+ else if (streq(n, "s390x"))
+ *ret = SCMP_ARCH_S390X;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+int seccomp_init_conservative(scmp_filter_ctx *ret, uint32_t default_action) {
+ scmp_filter_ctx seccomp;
+ int r;
+
+ /* Much like seccomp_init(), but tries to be a bit more conservative in its defaults: all secondary archs are
+ * added by default, and NNP is turned off. */
+
+ seccomp = seccomp_init(default_action);
+ if (!seccomp)
+ return -ENOMEM;
+
+ r = seccomp_add_secondary_archs(seccomp);
+ if (r < 0)
+ goto finish;
+
+ r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0);
+ if (r < 0)
+ goto finish;
+
+ *ret = seccomp;
+ return 0;
+
+finish:
+ seccomp_release(seccomp);
+ return r;
+}
+
+int seccomp_add_secondary_archs(scmp_filter_ctx ctx) {
+
+ /* Add in all possible secondary archs we are aware of that
+ * this kernel might support. */
+
+ static const int seccomp_arches[] = {
+#if defined(__i386__) || defined(__x86_64__)
+ SCMP_ARCH_X86,
+ SCMP_ARCH_X86_64,
+ SCMP_ARCH_X32,
+
+#elif defined(__arm__) || defined(__aarch64__)
+ SCMP_ARCH_ARM,
+ SCMP_ARCH_AARCH64,
+
+#elif defined(__arm__) || defined(__aarch64__)
+ SCMP_ARCH_ARM,
+ SCMP_ARCH_AARCH64,
+
+#elif defined(__mips__) || defined(__mips64__)
+ SCMP_ARCH_MIPS,
+ SCMP_ARCH_MIPS64,
+ SCMP_ARCH_MIPS64N32,
+ SCMP_ARCH_MIPSEL,
+ SCMP_ARCH_MIPSEL64,
+ SCMP_ARCH_MIPSEL64N32,
+
+#elif defined(__powerpc__) || defined(__powerpc64__)
+ SCMP_ARCH_PPC,
+ SCMP_ARCH_PPC64,
+ SCMP_ARCH_PPC64LE,
+
+#elif defined(__s390__) || defined(__s390x__)
+ SCMP_ARCH_S390,
+ SCMP_ARCH_S390X,
+#endif
+ };
+
+ unsigned i;
+ int r;
+
+ for (i = 0; i < ELEMENTSOF(seccomp_arches); i++) {
+ r = seccomp_arch_add(ctx, seccomp_arches[i]);
+ if (r < 0 && r != -EEXIST)
+ return r;
+ }
+
+ return 0;
+}
+
+static bool is_basic_seccomp_available(void) {
+ int r;
+ r = prctl(PR_GET_SECCOMP, 0, 0, 0, 0);
+ return r >= 0;
+}
+
+static bool is_seccomp_filter_available(void) {
+ int r;
+ r = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, NULL, 0, 0);
+ return r < 0 && errno == EFAULT;
+}
+
+bool is_seccomp_available(void) {
+ static int cached_enabled = -1;
+ if (cached_enabled < 0)
+ cached_enabled = is_basic_seccomp_available() && is_seccomp_filter_available();
+ return cached_enabled;
+}
+
+const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
+ [SYSCALL_FILTER_SET_BASIC_IO] = {
+ /* Basic IO */
+ .name = "@basic-io",
+ .value =
+ "close\0"
+ "dup2\0"
+ "dup3\0"
+ "dup\0"
+ "lseek\0"
+ "pread64\0"
+ "preadv\0"
+ "pwrite64\0"
+ "pwritev\0"
+ "read\0"
+ "readv\0"
+ "write\0"
+ "writev\0"
+ },
+ [SYSCALL_FILTER_SET_CLOCK] = {
+ /* Clock */
+ .name = "@clock",
+ .value =
+ "adjtimex\0"
+ "clock_adjtime\0"
+ "clock_settime\0"
+ "settimeofday\0"
+ "stime\0"
+ },
+ [SYSCALL_FILTER_SET_CPU_EMULATION] = {
+ /* CPU emulation calls */
+ .name = "@cpu-emulation",
+ .value =
+ "modify_ldt\0"
+ "subpage_prot\0"
+ "switch_endian\0"
+ "vm86\0"
+ "vm86old\0"
+ },
+ [SYSCALL_FILTER_SET_DEBUG] = {
+ /* Debugging/Performance Monitoring/Tracing */
+ .name = "@debug",
+ .value =
+ "lookup_dcookie\0"
+ "perf_event_open\0"
+ "process_vm_readv\0"
+ "process_vm_writev\0"
+ "ptrace\0"
+ "rtas\0"
+#ifdef __NR_s390_runtime_instr
+ "s390_runtime_instr\0"
+#endif
+ "sys_debug_setcontext\0"
+ },
+ [SYSCALL_FILTER_SET_DEFAULT] = {
+ /* Default list: the most basic of operations */
+ .name = "@default",
+ .value =
+ "clock_getres\0"
+ "clock_gettime\0"
+ "clock_nanosleep\0"
+ "execve\0"
+ "exit\0"
+ "exit_group\0"
+ "getrlimit\0" /* make sure processes can query stack size and such */
+ "gettimeofday\0"
+ "nanosleep\0"
+ "pause\0"
+ "rt_sigreturn\0"
+ "sigreturn\0"
+ "time\0"
+ },
+ [SYSCALL_FILTER_SET_IO_EVENT] = {
+ /* Event loop use */
+ .name = "@io-event",
+ .value =
+ "_newselect\0"
+ "epoll_create1\0"
+ "epoll_create\0"
+ "epoll_ctl\0"
+ "epoll_ctl_old\0"
+ "epoll_pwait\0"
+ "epoll_wait\0"
+ "epoll_wait_old\0"
+ "eventfd2\0"
+ "eventfd\0"
+ "poll\0"
+ "ppoll\0"
+ "pselect6\0"
+ "select\0"
+ },
+ [SYSCALL_FILTER_SET_IPC] = {
+ /* Message queues, SYSV IPC or other IPC */
+ .name = "@ipc",
+ .value = "ipc\0"
+ "memfd_create\0"
+ "mq_getsetattr\0"
+ "mq_notify\0"
+ "mq_open\0"
+ "mq_timedreceive\0"
+ "mq_timedsend\0"
+ "mq_unlink\0"
+ "msgctl\0"
+ "msgget\0"
+ "msgrcv\0"
+ "msgsnd\0"
+ "pipe2\0"
+ "pipe\0"
+ "process_vm_readv\0"
+ "process_vm_writev\0"
+ "semctl\0"
+ "semget\0"
+ "semop\0"
+ "semtimedop\0"
+ "shmat\0"
+ "shmctl\0"
+ "shmdt\0"
+ "shmget\0"
+ },
+ [SYSCALL_FILTER_SET_KEYRING] = {
+ /* Keyring */
+ .name = "@keyring",
+ .value =
+ "add_key\0"
+ "keyctl\0"
+ "request_key\0"
+ },
+ [SYSCALL_FILTER_SET_MODULE] = {
+ /* Kernel module control */
+ .name = "@module",
+ .value =
+ "delete_module\0"
+ "finit_module\0"
+ "init_module\0"
+ },
+ [SYSCALL_FILTER_SET_MOUNT] = {
+ /* Mounting */
+ .name = "@mount",
+ .value =
+ "chroot\0"
+ "mount\0"
+ "pivot_root\0"
+ "umount2\0"
+ "umount\0"
+ },
+ [SYSCALL_FILTER_SET_NETWORK_IO] = {
+ /* Network or Unix socket IO, should not be needed if not network facing */
+ .name = "@network-io",
+ .value =
+ "accept4\0"
+ "accept\0"
+ "bind\0"
+ "connect\0"
+ "getpeername\0"
+ "getsockname\0"
+ "getsockopt\0"
+ "listen\0"
+ "recv\0"
+ "recvfrom\0"
+ "recvmmsg\0"
+ "recvmsg\0"
+ "send\0"
+ "sendmmsg\0"
+ "sendmsg\0"
+ "sendto\0"
+ "setsockopt\0"
+ "shutdown\0"
+ "socket\0"
+ "socketcall\0"
+ "socketpair\0"
+ },
+ [SYSCALL_FILTER_SET_OBSOLETE] = {
+ /* Unusual, obsolete or unimplemented, some unknown even to libseccomp */
+ .name = "@obsolete",
+ .value =
+ "_sysctl\0"
+ "afs_syscall\0"
+ "break\0"
+ "create_module\0"
+ "ftime\0"
+ "get_kernel_syms\0"
+ "getpmsg\0"
+ "gtty\0"
+ "lock\0"
+ "mpx\0"
+ "prof\0"
+ "profil\0"
+ "putpmsg\0"
+ "query_module\0"
+ "security\0"
+ "sgetmask\0"
+ "ssetmask\0"
+ "stty\0"
+ "sysfs\0"
+ "tuxcall\0"
+ "ulimit\0"
+ "uselib\0"
+ "ustat\0"
+ "vserver\0"
+ },
+ [SYSCALL_FILTER_SET_PRIVILEGED] = {
+ /* Nice grab-bag of all system calls which need superuser capabilities */
+ .name = "@privileged",
+ .value =
+ "@clock\0"
+ "@module\0"
+ "@raw-io\0"
+ "acct\0"
+ "bdflush\0"
+ "bpf\0"
+ "capset\0"
+ "chown32\0"
+ "chown\0"
+ "chroot\0"
+ "fchown32\0"
+ "fchown\0"
+ "fchownat\0"
+ "kexec_file_load\0"
+ "kexec_load\0"
+ "lchown32\0"
+ "lchown\0"
+ "nfsservctl\0"
+ "pivot_root\0"
+ "quotactl\0"
+ "reboot\0"
+ "setdomainname\0"
+ "setfsuid32\0"
+ "setfsuid\0"
+ "setgroups32\0"
+ "setgroups\0"
+ "sethostname\0"
+ "setresuid32\0"
+ "setresuid\0"
+ "setreuid32\0"
+ "setreuid\0"
+ "setuid32\0"
+ "setuid\0"
+ "swapoff\0"
+ "swapon\0"
+ "_sysctl\0"
+ "vhangup\0"
+ },
+ [SYSCALL_FILTER_SET_PROCESS] = {
+ /* Process control, execution, namespaces */
+ .name = "@process",
+ .value =
+ "arch_prctl\0"
+ "clone\0"
+ "execveat\0"
+ "fork\0"
+ "kill\0"
+ "prctl\0"
+ "setns\0"
+ "tgkill\0"
+ "tkill\0"
+ "unshare\0"
+ "vfork\0"
+ },
+ [SYSCALL_FILTER_SET_RAW_IO] = {
+ /* Raw I/O ports */
+ .name = "@raw-io",
+ .value =
+ "ioperm\0"
+ "iopl\0"
+ "pciconfig_iobase\0"
+ "pciconfig_read\0"
+ "pciconfig_write\0"
+#ifdef __NR_s390_pci_mmio_read
+ "s390_pci_mmio_read\0"
+#endif
+#ifdef __NR_s390_pci_mmio_write
+ "s390_pci_mmio_write\0"
+#endif
+ },
+ [SYSCALL_FILTER_SET_RESOURCES] = {
+ /* Alter resource settings */
+ .name = "@resources",
+ .value =
+ "sched_setparam\0"
+ "sched_setscheduler\0"
+ "sched_setaffinity\0"
+ "setpriority\0"
+ "setrlimit\0"
+ "set_mempolicy\0"
+ "migrate_pages\0"
+ "move_pages\0"
+ "mbind\0"
+ "sched_setattr\0"
+ "prlimit64\0"
+ },
+};
+
+const SyscallFilterSet *syscall_filter_set_find(const char *name) {
+ unsigned i;
+
+ if (isempty(name) || name[0] != '@')
+ return NULL;
+
+ for (i = 0; i < _SYSCALL_FILTER_SET_MAX; i++)
+ if (streq(syscall_filter_sets[i].name, name))
+ return syscall_filter_sets + i;
+
+ return NULL;
+}
+
+int seccomp_add_syscall_filter_set(scmp_filter_ctx seccomp, const SyscallFilterSet *set, uint32_t action) {
+ const char *sys;
+ int r;
+
+ assert(seccomp);
+ assert(set);
+
+ NULSTR_FOREACH(sys, set->value) {
+ int id;
+
+ if (sys[0] == '@') {
+ const SyscallFilterSet *other;
+
+ other = syscall_filter_set_find(sys);
+ if (!other)
+ return -EINVAL;
+
+ r = seccomp_add_syscall_filter_set(seccomp, other, action);
+ } else {
+ id = seccomp_syscall_resolve_name(sys);
+ if (id == __NR_SCMP_ERROR)
+ return -EINVAL;
+
+ r = seccomp_rule_add(seccomp, action, id, 0);
+ }
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int seccomp_load_filter_set(uint32_t default_action, const SyscallFilterSet *set, uint32_t action) {
+ scmp_filter_ctx seccomp;
+ int r;
+
+ assert(set);
+
+ /* The one-stop solution: allocate a seccomp object, add a filter to it, and apply it */
+
+ r = seccomp_init_conservative(&seccomp, default_action);
+ if (r < 0)
+ return r;
+
+ r = seccomp_add_syscall_filter_set(seccomp, set, action);
+ if (r < 0)
+ goto finish;
+
+ r = seccomp_load(seccomp);
+
+finish:
+ seccomp_release(seccomp);
+ return r;
+
+}
diff --git a/src/libsystemd-shared/src/sleep-config.c b/src/libsystemd-shared/src/sleep-config.c
new file mode 100644
index 0000000000..5be19e13a9
--- /dev/null
+++ b/src/libsystemd-shared/src/sleep-config.c
@@ -0,0 +1,278 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2013 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 <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/def.h"
+#include "systemd-basic/env-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-shared/conf-parser.h"
+#include "systemd-shared/sleep-config.h"
+
+#define USE(x, y) do { (x) = (y); (y) = NULL; } while (0)
+
+int parse_sleep_config(const char *verb, char ***_modes, char ***_states) {
+
+ _cleanup_strv_free_ char
+ **suspend_mode = NULL, **suspend_state = NULL,
+ **hibernate_mode = NULL, **hibernate_state = NULL,
+ **hybrid_mode = NULL, **hybrid_state = NULL;
+ char **modes, **states;
+
+ const ConfigTableItem items[] = {
+ { "Sleep", "SuspendMode", config_parse_strv, 0, &suspend_mode },
+ { "Sleep", "SuspendState", config_parse_strv, 0, &suspend_state },
+ { "Sleep", "HibernateMode", config_parse_strv, 0, &hibernate_mode },
+ { "Sleep", "HibernateState", config_parse_strv, 0, &hibernate_state },
+ { "Sleep", "HybridSleepMode", config_parse_strv, 0, &hybrid_mode },
+ { "Sleep", "HybridSleepState", config_parse_strv, 0, &hybrid_state },
+ {}
+ };
+
+ config_parse_many_nulstr(PKGSYSCONFDIR "/sleep.conf",
+ CONF_PATHS_NULSTR("systemd/sleep.conf.d"),
+ "Sleep\0", config_item_table_lookup, items,
+ false, NULL);
+
+ if (streq(verb, "suspend")) {
+ /* empty by default */
+ USE(modes, suspend_mode);
+
+ if (suspend_state)
+ USE(states, suspend_state);
+ else
+ states = strv_new("mem", "standby", "freeze", NULL);
+
+ } else if (streq(verb, "hibernate")) {
+ if (hibernate_mode)
+ USE(modes, hibernate_mode);
+ else
+ modes = strv_new("platform", "shutdown", NULL);
+
+ if (hibernate_state)
+ USE(states, hibernate_state);
+ else
+ states = strv_new("disk", NULL);
+
+ } else if (streq(verb, "hybrid-sleep")) {
+ if (hybrid_mode)
+ USE(modes, hybrid_mode);
+ else
+ modes = strv_new("suspend", "platform", "shutdown", NULL);
+
+ if (hybrid_state)
+ USE(states, hybrid_state);
+ else
+ states = strv_new("disk", NULL);
+
+ } else
+ assert_not_reached("what verb");
+
+ if ((!modes && !streq(verb, "suspend")) || !states) {
+ strv_free(modes);
+ strv_free(states);
+ return log_oom();
+ }
+
+ *_modes = modes;
+ *_states = states;
+ return 0;
+}
+
+int can_sleep_state(char **types) {
+ char **type;
+ int r;
+ _cleanup_free_ char *p = NULL;
+
+ if (strv_isempty(types))
+ return true;
+
+ /* If /sys is read-only we cannot sleep */
+ if (access("/sys/power/state", W_OK) < 0)
+ return false;
+
+ r = read_one_line_file("/sys/power/state", &p);
+ if (r < 0)
+ return false;
+
+ STRV_FOREACH(type, types) {
+ const char *word, *state;
+ size_t l, k;
+
+ k = strlen(*type);
+ FOREACH_WORD_SEPARATOR(word, l, p, WHITESPACE, state)
+ if (l == k && memcmp(word, *type, l) == 0)
+ return true;
+ }
+
+ return false;
+}
+
+int can_sleep_disk(char **types) {
+ char **type;
+ int r;
+ _cleanup_free_ char *p = NULL;
+
+ if (strv_isempty(types))
+ return true;
+
+ /* If /sys is read-only we cannot sleep */
+ if (access("/sys/power/disk", W_OK) < 0)
+ return false;
+
+ r = read_one_line_file("/sys/power/disk", &p);
+ if (r < 0)
+ return false;
+
+ STRV_FOREACH(type, types) {
+ const char *word, *state;
+ size_t l, k;
+
+ k = strlen(*type);
+ FOREACH_WORD_SEPARATOR(word, l, p, WHITESPACE, state) {
+ if (l == k && memcmp(word, *type, l) == 0)
+ return true;
+
+ if (l == k + 2 &&
+ word[0] == '[' &&
+ memcmp(word + 1, *type, l - 2) == 0 &&
+ word[l-1] == ']')
+ return true;
+ }
+ }
+
+ return false;
+}
+
+#define HIBERNATION_SWAP_THRESHOLD 0.98
+
+static int hibernation_partition_size(size_t *size, size_t *used) {
+ _cleanup_fclose_ FILE *f;
+ unsigned i;
+
+ assert(size);
+ assert(used);
+
+ f = fopen("/proc/swaps", "re");
+ if (!f) {
+ log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING,
+ "Failed to retrieve open /proc/swaps: %m");
+ assert(errno > 0);
+ return -errno;
+ }
+
+ (void) fscanf(f, "%*s %*s %*s %*s %*s\n");
+
+ for (i = 1;; i++) {
+ _cleanup_free_ char *dev = NULL, *type = NULL;
+ size_t size_field, used_field;
+ int k;
+
+ k = fscanf(f,
+ "%ms " /* device/file */
+ "%ms " /* type of swap */
+ "%zu " /* swap size */
+ "%zu " /* used */
+ "%*i\n", /* priority */
+ &dev, &type, &size_field, &used_field);
+ if (k != 4) {
+ if (k == EOF)
+ break;
+
+ log_warning("Failed to parse /proc/swaps:%u", i);
+ continue;
+ }
+
+ if (streq(type, "partition") && endswith(dev, "\\040(deleted)")) {
+ log_warning("Ignoring deleted swapfile '%s'.", dev);
+ continue;
+ }
+
+ *size = size_field;
+ *used = used_field;
+ return 0;
+ }
+
+ log_debug("No swap partitions were found.");
+ return -ENOSYS;
+}
+
+static bool enough_memory_for_hibernation(void) {
+ _cleanup_free_ char *active = NULL;
+ unsigned long long act = 0;
+ size_t size = 0, used = 0;
+ int r;
+
+ if (getenv_bool("SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK") > 0)
+ return true;
+
+ r = hibernation_partition_size(&size, &used);
+ if (r < 0)
+ return false;
+
+ r = get_proc_field("/proc/meminfo", "Active(anon)", WHITESPACE, &active);
+ if (r < 0) {
+ log_error_errno(r, "Failed to retrieve Active(anon) from /proc/meminfo: %m");
+ return false;
+ }
+
+ r = safe_atollu(active, &act);
+ if (r < 0) {
+ log_error_errno(r, "Failed to parse Active(anon) from /proc/meminfo: %s: %m",
+ active);
+ return false;
+ }
+
+ r = act <= (size - used) * HIBERNATION_SWAP_THRESHOLD;
+ log_debug("Hibernation is %spossible, Active(anon)=%llu kB, size=%zu kB, used=%zu kB, threshold=%.2g%%",
+ r ? "" : "im", act, size, used, 100*HIBERNATION_SWAP_THRESHOLD);
+
+ return r;
+}
+
+int can_sleep(const char *verb) {
+ _cleanup_strv_free_ char **modes = NULL, **states = NULL;
+ int r;
+
+ assert(streq(verb, "suspend") ||
+ streq(verb, "hibernate") ||
+ streq(verb, "hybrid-sleep"));
+
+ r = parse_sleep_config(verb, &modes, &states);
+ if (r < 0)
+ return false;
+
+ if (!can_sleep_state(states) || !can_sleep_disk(modes))
+ return false;
+
+ return streq(verb, "suspend") || enough_memory_for_hibernation();
+}
diff --git a/src/libsystemd-shared/src/spawn-ask-password-agent.c b/src/libsystemd-shared/src/spawn-ask-password-agent.c
new file mode 100644
index 0000000000..2ba48157d0
--- /dev/null
+++ b/src/libsystemd-shared/src/spawn-ask-password-agent.c
@@ -0,0 +1,62 @@
+/***
+ 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 <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "systemd-basic/log.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/spawn-ask-password-agent.h"
+
+static pid_t agent_pid = 0;
+
+int ask_password_agent_open(void) {
+ int r;
+
+ if (agent_pid > 0)
+ return 0;
+
+ /* We check STDIN here, not STDOUT, since this is about input,
+ * not output */
+ if (!isatty(STDIN_FILENO))
+ return 0;
+
+ r = fork_agent(&agent_pid,
+ NULL, 0,
+ SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH,
+ SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to fork TTY ask password agent: %m");
+
+ return 1;
+}
+
+void ask_password_agent_close(void) {
+
+ if (agent_pid <= 0)
+ return;
+
+ /* Inform agent that we are done */
+ (void) kill(agent_pid, SIGTERM);
+ (void) kill(agent_pid, SIGCONT);
+ (void) wait_for_terminate(agent_pid, NULL);
+ agent_pid = 0;
+}
diff --git a/src/libsystemd-shared/src/spawn-polkit-agent.c b/src/libsystemd-shared/src/spawn-polkit-agent.c
new file mode 100644
index 0000000000..5f4f518abf
--- /dev/null
+++ b/src/libsystemd-shared/src/spawn-polkit-agent.c
@@ -0,0 +1,102 @@
+/***
+ 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 <poll.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/stdio-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/spawn-polkit-agent.h"
+
+#ifdef ENABLE_POLKIT
+static pid_t agent_pid = 0;
+
+int polkit_agent_open(void) {
+ int r;
+ int pipe_fd[2];
+ char notify_fd[DECIMAL_STR_MAX(int) + 1];
+
+ if (agent_pid > 0)
+ return 0;
+
+ /* Clients that run as root don't need to activate/query polkit */
+ if (geteuid() == 0)
+ return 0;
+
+ /* We check STDIN here, not STDOUT, since this is about input,
+ * not output */
+ if (!isatty(STDIN_FILENO))
+ return 0;
+
+ if (pipe2(pipe_fd, 0) < 0)
+ return -errno;
+
+ xsprintf(notify_fd, "%i", pipe_fd[1]);
+
+ r = fork_agent(&agent_pid,
+ &pipe_fd[1], 1,
+ POLKIT_AGENT_BINARY_PATH,
+ POLKIT_AGENT_BINARY_PATH, "--notify-fd", notify_fd, "--fallback", NULL);
+
+ /* Close the writing side, because that's the one for the agent */
+ safe_close(pipe_fd[1]);
+
+ if (r < 0)
+ log_error_errno(r, "Failed to fork TTY ask password agent: %m");
+ else
+ /* Wait until the agent closes the fd */
+ fd_wait_for_event(pipe_fd[0], POLLHUP, USEC_INFINITY);
+
+ safe_close(pipe_fd[0]);
+
+ return r;
+}
+
+void polkit_agent_close(void) {
+
+ if (agent_pid <= 0)
+ return;
+
+ /* Inform agent that we are done */
+ (void) kill(agent_pid, SIGTERM);
+ (void) kill(agent_pid, SIGCONT);
+
+ (void) wait_for_terminate(agent_pid, NULL);
+ agent_pid = 0;
+}
+
+#else
+
+int polkit_agent_open(void) {
+ return 0;
+}
+
+void polkit_agent_close(void) {
+}
+
+#endif
diff --git a/src/libsystemd-shared/src/specifier.c b/src/libsystemd-shared/src/specifier.c
new file mode 100644
index 0000000000..8946e08c6a
--- /dev/null
+++ b/src/libsystemd-shared/src/specifier.c
@@ -0,0 +1,188 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/utsname.h>
+
+#include <systemd/sd-id128.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-shared/specifier.h"
+
+/*
+ * Generic infrastructure for replacing %x style specifiers in
+ * strings. Will call a callback for each replacement.
+ *
+ */
+
+int specifier_printf(const char *text, const Specifier table[], void *userdata, char **_ret) {
+ char *ret, *t;
+ const char *f;
+ bool percent = false;
+ size_t l;
+ int r;
+
+ assert(text);
+ assert(table);
+
+ l = strlen(text);
+ ret = new(char, l+1);
+ if (!ret)
+ return -ENOMEM;
+
+ t = ret;
+
+ for (f = text; *f; f++, l--) {
+
+ if (percent) {
+ if (*f == '%')
+ *(t++) = '%';
+ else {
+ const Specifier *i;
+
+ for (i = table; i->specifier; i++)
+ if (i->specifier == *f)
+ break;
+
+ if (i->lookup) {
+ _cleanup_free_ char *w = NULL;
+ char *n;
+ size_t k, j;
+
+ r = i->lookup(i->specifier, i->data, userdata, &w);
+ if (r < 0) {
+ free(ret);
+ return r;
+ }
+
+ j = t - ret;
+ k = strlen(w);
+
+ n = new(char, j + k + l + 1);
+ if (!n) {
+ free(ret);
+ return -ENOMEM;
+ }
+
+ memcpy(n, ret, j);
+ memcpy(n + j, w, k);
+
+ free(ret);
+
+ ret = n;
+ t = n + j + k;
+ } else {
+ *(t++) = '%';
+ *(t++) = *f;
+ }
+ }
+
+ percent = false;
+ } else if (*f == '%')
+ percent = true;
+ else
+ *(t++) = *f;
+ }
+
+ *t = 0;
+ *_ret = ret;
+ return 0;
+}
+
+/* Generic handler for simple string replacements */
+
+int specifier_string(char specifier, void *data, void *userdata, char **ret) {
+ char *n;
+
+ n = strdup(strempty(data));
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
+}
+
+int specifier_machine_id(char specifier, void *data, void *userdata, char **ret) {
+ sd_id128_t id;
+ char *n;
+ int r;
+
+ r = sd_id128_get_machine(&id);
+ if (r < 0)
+ return r;
+
+ n = new(char, 33);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = sd_id128_to_string(id, n);
+ return 0;
+}
+
+int specifier_boot_id(char specifier, void *data, void *userdata, char **ret) {
+ sd_id128_t id;
+ char *n;
+ int r;
+
+ r = sd_id128_get_boot(&id);
+ if (r < 0)
+ return r;
+
+ n = new(char, 33);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = sd_id128_to_string(id, n);
+ return 0;
+}
+
+int specifier_host_name(char specifier, void *data, void *userdata, char **ret) {
+ char *n;
+
+ n = gethostname_malloc();
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
+}
+
+int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret) {
+ struct utsname uts;
+ char *n;
+ int r;
+
+ r = uname(&uts);
+ if (r < 0)
+ return -errno;
+
+ n = strdup(uts.release);
+ if (!n)
+ return -ENOMEM;
+
+ *ret = n;
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/switch-root.c b/src/libsystemd-shared/src/switch-root.c
new file mode 100644
index 0000000000..c10d6f4cbb
--- /dev/null
+++ b/src/libsystemd-shared/src/switch-root.c
@@ -0,0 +1,167 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2012 Harald Hoyer, 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 <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/missing.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/rm-rf.h"
+#include "systemd-basic/stdio-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/base-filesystem.h"
+#include "systemd-shared/switch-root.h"
+
+int switch_root(const char *new_root, const char *oldroot, bool detach_oldroot, unsigned long mountflags) {
+
+ /* Don't try to unmount/move the old "/", there's no way to do it. */
+ static const char move_mounts[] =
+ "/dev\0"
+ "/proc\0"
+ "/sys\0"
+ "/run\0";
+
+ _cleanup_close_ int old_root_fd = -1;
+ struct stat new_root_stat;
+ bool old_root_remove;
+ const char *i, *temporary_old_root;
+
+ if (path_equal(new_root, "/"))
+ return 0;
+
+ temporary_old_root = strjoina(new_root, oldroot);
+ mkdir_p_label(temporary_old_root, 0755);
+
+ old_root_remove = in_initrd();
+
+ if (stat(new_root, &new_root_stat) < 0)
+ return log_error_errno(errno, "Failed to stat directory %s: %m", new_root);
+
+ /* Work-around for kernel design: the kernel refuses switching
+ * root if any file systems are mounted MS_SHARED. Hence
+ * remount them MS_PRIVATE here as a work-around.
+ *
+ * https://bugzilla.redhat.com/show_bug.cgi?id=847418 */
+ if (mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) < 0)
+ log_warning_errno(errno, "Failed to make \"/\" private mount: %m");
+
+ NULSTR_FOREACH(i, move_mounts) {
+ char new_mount[PATH_MAX];
+ struct stat sb;
+ size_t n;
+
+ n = snprintf(new_mount, sizeof new_mount, "%s%s", new_root, i);
+ if (n >= sizeof new_mount) {
+ bool move = mountflags & MS_MOVE;
+
+ log_warning("New path is too long, %s: %s%s",
+ move ? "forcing unmount instead" : "ignoring",
+ new_root, i);
+
+ if (move)
+ if (umount2(i, MNT_FORCE) < 0)
+ log_warning_errno(errno, "Failed to unmount %s: %m", i);
+ continue;
+ }
+
+ mkdir_p_label(new_mount, 0755);
+
+ if (stat(new_mount, &sb) < 0 ||
+ sb.st_dev != new_root_stat.st_dev) {
+
+ /* Mount point seems to be mounted already or
+ * stat failed. Unmount the old mount point. */
+ if (umount2(i, MNT_DETACH) < 0)
+ log_warning_errno(errno, "Failed to unmount %s: %m", i);
+ continue;
+ }
+
+ if (mount(i, new_mount, NULL, mountflags, NULL) < 0) {
+ if (mountflags & MS_MOVE) {
+ log_error_errno(errno, "Failed to move mount %s to %s, forcing unmount: %m", i, new_mount);
+
+ if (umount2(i, MNT_FORCE) < 0)
+ log_warning_errno(errno, "Failed to unmount %s: %m", i);
+
+ } else if (mountflags & MS_BIND)
+ log_error_errno(errno, "Failed to bind mount %s to %s: %m", i, new_mount);
+ }
+ }
+
+ /* Do not fail, if base_filesystem_create() fails. Not all
+ * switch roots are like base_filesystem_create() wants them
+ * to look like. They might even boot, if they are RO and
+ * don't have the FS layout. Just ignore the error and
+ * switch_root() nevertheless. */
+ (void) base_filesystem_create(new_root, UID_INVALID, GID_INVALID);
+
+ if (chdir(new_root) < 0)
+ return log_error_errno(errno, "Failed to change directory to %s: %m", new_root);
+
+ if (old_root_remove) {
+ old_root_fd = open("/", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOCTTY|O_DIRECTORY);
+ if (old_root_fd < 0)
+ log_warning_errno(errno, "Failed to open root directory: %m");
+ }
+
+ /* We first try a pivot_root() so that we can umount the old
+ * root dir. In many cases (i.e. where rootfs is /), that's
+ * not possible however, and hence we simply overmount root */
+ if (pivot_root(new_root, temporary_old_root) >= 0) {
+
+ /* Immediately get rid of the old root, if detach_oldroot is set.
+ * Since we are running off it we need to do this lazily. */
+ if (detach_oldroot && umount2(oldroot, MNT_DETACH) < 0)
+ log_error_errno(errno, "Failed to lazily umount old root dir %s, %s: %m",
+ oldroot,
+ errno == ENOENT ? "ignoring" : "leaving it around");
+
+ } else if (mount(new_root, "/", NULL, MS_MOVE, NULL) < 0)
+ return log_error_errno(errno, "Failed to mount moving %s to /: %m", new_root);
+
+ if (chroot(".") < 0)
+ return log_error_errno(errno, "Failed to change root: %m");
+
+ if (chdir("/") < 0)
+ return log_error_errno(errno, "Failed to change directory: %m");
+
+ if (old_root_fd >= 0) {
+ struct stat rb;
+
+ if (fstat(old_root_fd, &rb) < 0)
+ log_warning_errno(errno, "Failed to stat old root directory, leaving: %m");
+ else {
+ (void) rm_rf_children(old_root_fd, 0, &rb);
+ old_root_fd = -1;
+ }
+ }
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/sysctl-util.c b/src/libsystemd-shared/src/sysctl-util.c
new file mode 100644
index 0000000000..89f0b51d20
--- /dev/null
+++ b/src/libsystemd-shared/src/sysctl-util.c
@@ -0,0 +1,73 @@
+/***
+ 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/>.
+***/
+
+#include <stdio.h>
+#include <string.h>
+
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-shared/sysctl-util.h"
+
+char *sysctl_normalize(char *s) {
+ char *n;
+
+ n = strpbrk(s, "/.");
+ /* If the first separator is a slash, the path is
+ * assumed to be normalized and slashes remain slashes
+ * and dots remains dots. */
+ if (!n || *n == '/')
+ return s;
+
+ /* Otherwise, dots become slashes and slashes become
+ * dots. Fun. */
+ while (n) {
+ if (*n == '.')
+ *n = '/';
+ else
+ *n = '.';
+
+ n = strpbrk(n + 1, "/.");
+ }
+
+ return s;
+}
+
+int sysctl_write(const char *property, const char *value) {
+ char *p;
+
+ assert(property);
+ assert(value);
+
+ log_debug("Setting '%s' to '%s'", property, value);
+
+ p = strjoina("/proc/sys/", property);
+ return write_string_file(p, value, 0);
+}
+
+int sysctl_read(const char *property, char **content) {
+ char *p;
+
+ assert(property);
+ assert(content);
+
+ p = strjoina("/proc/sys/", property);
+ return read_full_file(p, content, NULL);
+}
diff --git a/src/libsystemd-shared/src/tests.c b/src/libsystemd-shared/src/tests.c
new file mode 100644
index 0000000000..72176a36cd
--- /dev/null
+++ b/src/libsystemd-shared/src/tests.c
@@ -0,0 +1,33 @@
+/***
+ 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/>.
+***/
+
+#include <stdlib.h>
+
+#include "systemd-basic/util.h"
+#include "systemd-shared/tests.h"
+
+char* setup_fake_runtime_dir(void) {
+ char t[] = "/tmp/fake-xdg-runtime-XXXXXX", *p;
+
+ assert_se(mkdtemp(t));
+ assert_se(setenv("XDG_RUNTIME_DIR", t, 1) >= 0);
+ assert_se(p = strdup(t));
+
+ return p;
+}
diff --git a/src/libsystemd-shared/src/uid-range.c b/src/libsystemd-shared/src/uid-range.c
new file mode 100644
index 0000000000..ec08299d02
--- /dev/null
+++ b/src/libsystemd-shared/src/uid-range.c
@@ -0,0 +1,208 @@
+/***
+ 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 <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "systemd-basic/macro.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-shared/uid-range.h"
+
+static bool uid_range_intersect(UidRange *range, uid_t start, uid_t nr) {
+ assert(range);
+
+ return range->start <= start + nr &&
+ range->start + range->nr >= start;
+}
+
+static void uid_range_coalesce(UidRange **p, unsigned *n) {
+ unsigned i, j;
+
+ assert(p);
+ assert(n);
+
+ for (i = 0; i < *n; i++) {
+ for (j = i + 1; j < *n; j++) {
+ UidRange *x = (*p)+i, *y = (*p)+j;
+
+ if (uid_range_intersect(x, y->start, y->nr)) {
+ uid_t begin, end;
+
+ begin = MIN(x->start, y->start);
+ end = MAX(x->start + x->nr, y->start + y->nr);
+
+ x->start = begin;
+ x->nr = end - begin;
+
+ if (*n > j+1)
+ memmove(y, y+1, sizeof(UidRange) * (*n - j -1));
+
+ (*n)--;
+ j--;
+ }
+ }
+ }
+
+}
+
+static int uid_range_compare(const void *a, const void *b) {
+ const UidRange *x = a, *y = b;
+
+ if (x->start < y->start)
+ return -1;
+ if (x->start > y->start)
+ return 1;
+
+ if (x->nr < y->nr)
+ return -1;
+ if (x->nr > y->nr)
+ return 1;
+
+ return 0;
+}
+
+int uid_range_add(UidRange **p, unsigned *n, uid_t start, uid_t nr) {
+ bool found = false;
+ UidRange *x;
+ unsigned i;
+
+ assert(p);
+ assert(n);
+
+ if (nr <= 0)
+ return 0;
+
+ for (i = 0; i < *n; i++) {
+ x = (*p) + i;
+ if (uid_range_intersect(x, start, nr)) {
+ found = true;
+ break;
+ }
+ }
+
+ if (found) {
+ uid_t begin, end;
+
+ begin = MIN(x->start, start);
+ end = MAX(x->start + x->nr, start + nr);
+
+ x->start = begin;
+ x->nr = end - begin;
+ } else {
+ UidRange *t;
+
+ t = realloc(*p, sizeof(UidRange) * (*n + 1));
+ if (!t)
+ return -ENOMEM;
+
+ *p = t;
+ x = t + ((*n) ++);
+
+ x->start = start;
+ x->nr = nr;
+ }
+
+ qsort(*p, *n, sizeof(UidRange), uid_range_compare);
+ uid_range_coalesce(p, n);
+
+ return *n;
+}
+
+int uid_range_add_str(UidRange **p, unsigned *n, const char *s) {
+ uid_t start, nr;
+ const char *t;
+ int r;
+
+ assert(p);
+ assert(n);
+ assert(s);
+
+ t = strchr(s, '-');
+ if (t) {
+ char *b;
+ uid_t end;
+
+ b = strndupa(s, t - s);
+ r = parse_uid(b, &start);
+ if (r < 0)
+ return r;
+
+ r = parse_uid(t+1, &end);
+ if (r < 0)
+ return r;
+
+ if (end < start)
+ return -EINVAL;
+
+ nr = end - start + 1;
+ } else {
+ r = parse_uid(s, &start);
+ if (r < 0)
+ return r;
+
+ nr = 1;
+ }
+
+ return uid_range_add(p, n, start, nr);
+}
+
+int uid_range_next_lower(const UidRange *p, unsigned n, uid_t *uid) {
+ uid_t closest = UID_INVALID, candidate;
+ unsigned i;
+
+ assert(p);
+ assert(uid);
+
+ candidate = *uid - 1;
+
+ for (i = 0; i < n; i++) {
+ uid_t begin, end;
+
+ begin = p[i].start;
+ end = p[i].start + p[i].nr - 1;
+
+ if (candidate >= begin && candidate <= end) {
+ *uid = candidate;
+ return 1;
+ }
+
+ if (end < candidate)
+ closest = end;
+ }
+
+ if (closest == UID_INVALID)
+ return -EBUSY;
+
+ *uid = closest;
+ return 1;
+}
+
+bool uid_range_contains(const UidRange *p, unsigned n, uid_t uid) {
+ unsigned i;
+
+ assert(p);
+ assert(uid);
+
+ for (i = 0; i < n; i++)
+ if (uid >= p[i].start && uid < p[i].start + p[i].nr)
+ return true;
+
+ return false;
+}
diff --git a/src/libsystemd-shared/src/utmp-wtmp.c b/src/libsystemd-shared/src/utmp-wtmp.c
new file mode 100644
index 0000000000..e0654ab15a
--- /dev/null
+++ b/src/libsystemd-shared/src/utmp-wtmp.c
@@ -0,0 +1,445 @@
+/***
+ 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/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/utsname.h>
+#include <unistd.h>
+#include <utmpx.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/hostname-util.h"
+#include "systemd-basic/macro.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-basic/user-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/utmp-wtmp.h"
+
+int utmp_get_runlevel(int *runlevel, int *previous) {
+ struct utmpx *found, lookup = { .ut_type = RUN_LVL };
+ int r;
+ const char *e;
+
+ assert(runlevel);
+
+ /* If these values are set in the environment this takes
+ * precedence. Presumably, sysvinit does this to work around a
+ * race condition that would otherwise exist where we'd always
+ * go to disk and hence might read runlevel data that might be
+ * very new and does not apply to the current script being
+ * executed. */
+
+ e = getenv("RUNLEVEL");
+ if (e && e[0] > 0) {
+ *runlevel = e[0];
+
+ if (previous) {
+ /* $PREVLEVEL seems to be an Upstart thing */
+
+ e = getenv("PREVLEVEL");
+ if (e && e[0] > 0)
+ *previous = e[0];
+ else
+ *previous = 0;
+ }
+
+ return 0;
+ }
+
+ if (utmpxname(_PATH_UTMPX) < 0)
+ return -errno;
+
+ setutxent();
+
+ found = getutxid(&lookup);
+ if (!found)
+ r = -errno;
+ else {
+ int a, b;
+
+ a = found->ut_pid & 0xFF;
+ b = (found->ut_pid >> 8) & 0xFF;
+
+ *runlevel = a;
+ if (previous)
+ *previous = b;
+
+ r = 0;
+ }
+
+ endutxent();
+
+ return r;
+}
+
+static void init_timestamp(struct utmpx *store, usec_t t) {
+ assert(store);
+
+ if (t <= 0)
+ t = now(CLOCK_REALTIME);
+
+ store->ut_tv.tv_sec = t / USEC_PER_SEC;
+ store->ut_tv.tv_usec = t % USEC_PER_SEC;
+}
+
+static void init_entry(struct utmpx *store, usec_t t) {
+ struct utsname uts = {};
+
+ assert(store);
+
+ init_timestamp(store, t);
+
+ if (uname(&uts) >= 0)
+ strncpy(store->ut_host, uts.release, sizeof(store->ut_host));
+
+ strncpy(store->ut_line, "~", sizeof(store->ut_line)); /* or ~~ ? */
+ strncpy(store->ut_id, "~~", sizeof(store->ut_id));
+}
+
+static int write_entry_utmp(const struct utmpx *store) {
+ int r;
+
+ assert(store);
+
+ /* utmp is similar to wtmp, but there is only one entry for
+ * each entry type resp. user; i.e. basically a key/value
+ * table. */
+
+ if (utmpxname(_PATH_UTMPX) < 0)
+ return -errno;
+
+ setutxent();
+
+ if (!pututxline(store))
+ r = -errno;
+ else
+ r = 0;
+
+ endutxent();
+
+ return r;
+}
+
+static int write_entry_wtmp(const struct utmpx *store) {
+ assert(store);
+
+ /* wtmp is a simple append-only file where each entry is
+ simply appended to the end; i.e. basically a log. */
+
+ errno = 0;
+ updwtmpx(_PATH_WTMPX, store);
+ return -errno;
+}
+
+static int write_utmp_wtmp(const struct utmpx *store_utmp, const struct utmpx *store_wtmp) {
+ int r, s;
+
+ r = write_entry_utmp(store_utmp);
+ s = write_entry_wtmp(store_wtmp);
+
+ if (r >= 0)
+ r = s;
+
+ /* If utmp/wtmp have been disabled, that's a good thing, hence
+ * ignore the errors */
+ if (r == -ENOENT)
+ r = 0;
+
+ return r;
+}
+
+static int write_entry_both(const struct utmpx *store) {
+ return write_utmp_wtmp(store, store);
+}
+
+int utmp_put_shutdown(void) {
+ struct utmpx store = {};
+
+ init_entry(&store, 0);
+
+ store.ut_type = RUN_LVL;
+ strncpy(store.ut_user, "shutdown", sizeof(store.ut_user));
+
+ return write_entry_both(&store);
+}
+
+int utmp_put_reboot(usec_t t) {
+ struct utmpx store = {};
+
+ init_entry(&store, t);
+
+ store.ut_type = BOOT_TIME;
+ strncpy(store.ut_user, "reboot", sizeof(store.ut_user));
+
+ return write_entry_both(&store);
+}
+
+_pure_ static const char *sanitize_id(const char *id) {
+ size_t l;
+
+ assert(id);
+ l = strlen(id);
+
+ if (l <= sizeof(((struct utmpx*) NULL)->ut_id))
+ return id;
+
+ return id + l - sizeof(((struct utmpx*) NULL)->ut_id);
+}
+
+int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) {
+ struct utmpx store = {
+ .ut_type = INIT_PROCESS,
+ .ut_pid = pid,
+ .ut_session = sid,
+ };
+ int r;
+
+ assert(id);
+
+ init_timestamp(&store, 0);
+
+ /* ut_id needs only be nul-terminated if it is shorter than sizeof(ut_id) */
+ strncpy(store.ut_id, sanitize_id(id), sizeof(store.ut_id));
+
+ if (line)
+ strncpy(store.ut_line, basename(line), sizeof(store.ut_line));
+
+ r = write_entry_both(&store);
+ if (r < 0)
+ return r;
+
+ if (ut_type == LOGIN_PROCESS || ut_type == USER_PROCESS) {
+ store.ut_type = LOGIN_PROCESS;
+ r = write_entry_both(&store);
+ if (r < 0)
+ return r;
+ }
+
+ if (ut_type == USER_PROCESS) {
+ store.ut_type = USER_PROCESS;
+ strncpy(store.ut_user, user, sizeof(store.ut_user)-1);
+ r = write_entry_both(&store);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
+ struct utmpx lookup = {
+ .ut_type = INIT_PROCESS /* looks for DEAD_PROCESS, LOGIN_PROCESS, USER_PROCESS, too */
+ }, store, store_wtmp, *found;
+
+ assert(id);
+
+ setutxent();
+
+ /* ut_id needs only be nul-terminated if it is shorter than sizeof(ut_id) */
+ strncpy(lookup.ut_id, sanitize_id(id), sizeof(lookup.ut_id));
+
+ found = getutxid(&lookup);
+ if (!found)
+ return 0;
+
+ if (found->ut_pid != pid)
+ return 0;
+
+ memcpy(&store, found, sizeof(store));
+ store.ut_type = DEAD_PROCESS;
+ store.ut_exit.e_termination = code;
+ store.ut_exit.e_exit = status;
+
+ zero(store.ut_user);
+ zero(store.ut_host);
+ zero(store.ut_tv);
+
+ memcpy(&store_wtmp, &store, sizeof(store_wtmp));
+ /* wtmp wants the current time */
+ init_timestamp(&store_wtmp, 0);
+
+ return write_utmp_wtmp(&store, &store_wtmp);
+}
+
+
+int utmp_put_runlevel(int runlevel, int previous) {
+ struct utmpx store = {};
+ int r;
+
+ assert(runlevel > 0);
+
+ if (previous <= 0) {
+ /* Find the old runlevel automatically */
+
+ r = utmp_get_runlevel(&previous, NULL);
+ if (r < 0) {
+ if (r != -ESRCH)
+ return r;
+
+ previous = 0;
+ }
+ }
+
+ if (previous == runlevel)
+ return 0;
+
+ init_entry(&store, 0);
+
+ store.ut_type = RUN_LVL;
+ store.ut_pid = (runlevel & 0xFF) | ((previous & 0xFF) << 8);
+ strncpy(store.ut_user, "runlevel", sizeof(store.ut_user));
+
+ return write_entry_both(&store);
+}
+
+#define TIMEOUT_MSEC 50
+
+static int write_to_terminal(const char *tty, const char *message) {
+ _cleanup_close_ int fd = -1;
+ const char *p;
+ size_t left;
+ usec_t end;
+
+ assert(tty);
+ assert(message);
+
+ fd = open(tty, O_WRONLY|O_NDELAY|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0 || !isatty(fd))
+ return -errno;
+
+ p = message;
+ left = strlen(message);
+
+ end = now(CLOCK_MONOTONIC) + TIMEOUT_MSEC*USEC_PER_MSEC;
+
+ while (left > 0) {
+ ssize_t n;
+ struct pollfd pollfd = {
+ .fd = fd,
+ .events = POLLOUT,
+ };
+ usec_t t;
+ int k;
+
+ t = now(CLOCK_MONOTONIC);
+
+ if (t >= end)
+ return -ETIME;
+
+ k = poll(&pollfd, 1, (end - t) / USEC_PER_MSEC);
+ if (k < 0)
+ return -errno;
+
+ if (k == 0)
+ return -ETIME;
+
+ n = write(fd, p, left);
+ if (n < 0) {
+ if (errno == EAGAIN)
+ continue;
+
+ return -errno;
+ }
+
+ assert((size_t) n <= left);
+
+ p += n;
+ left -= n;
+ }
+
+ return 0;
+}
+
+int utmp_wall(
+ const char *message,
+ const char *username,
+ const char *origin_tty,
+ bool (*match_tty)(const char *tty, void *userdata),
+ void *userdata) {
+
+ _cleanup_free_ char *text = NULL, *hn = NULL, *un = NULL, *stdin_tty = NULL;
+ char date[FORMAT_TIMESTAMP_MAX];
+ struct utmpx *u;
+ int r;
+
+ hn = gethostname_malloc();
+ if (!hn)
+ return -ENOMEM;
+ if (!username) {
+ un = getlogname_malloc();
+ if (!un)
+ return -ENOMEM;
+ }
+
+ if (!origin_tty) {
+ getttyname_harder(STDIN_FILENO, &stdin_tty);
+ origin_tty = stdin_tty;
+ }
+
+ if (asprintf(&text,
+ "\a\r\n"
+ "Broadcast message from %s@%s%s%s (%s):\r\n\r\n"
+ "%s\r\n\r\n",
+ un ?: username, hn,
+ origin_tty ? " on " : "", strempty(origin_tty),
+ format_timestamp(date, sizeof(date), now(CLOCK_REALTIME)),
+ message) < 0)
+ return -ENOMEM;
+
+ setutxent();
+
+ r = 0;
+
+ while ((u = getutxent())) {
+ _cleanup_free_ char *buf = NULL;
+ const char *path;
+ int q;
+
+ if (u->ut_type != USER_PROCESS || u->ut_user[0] == 0)
+ continue;
+
+ /* this access is fine, because strlen("/dev/") << 32 (UT_LINESIZE) */
+ if (path_startswith(u->ut_line, "/dev/"))
+ path = u->ut_line;
+ else {
+ if (asprintf(&buf, "/dev/%.*s", (int) sizeof(u->ut_line), u->ut_line) < 0)
+ return -ENOMEM;
+
+ path = buf;
+ }
+
+ if (!match_tty || match_tty(path, userdata)) {
+ q = write_to_terminal(path, text);
+ if (q < 0)
+ r = q;
+ }
+ }
+
+ return r;
+}
diff --git a/src/libsystemd-shared/src/vlan-util.c b/src/libsystemd-shared/src/vlan-util.c
new file mode 100644
index 0000000000..0b66e577ef
--- /dev/null
+++ b/src/libsystemd-shared/src/vlan-util.c
@@ -0,0 +1,69 @@
+/***
+ 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/>.
+***/
+
+#include "systemd-basic/parse-util.h"
+#include "systemd-shared/conf-parser.h"
+#include "systemd-shared/vlan-util.h"
+
+int parse_vlanid(const char *p, uint16_t *ret) {
+ uint16_t id;
+ int r;
+
+ r = safe_atou16(p, &id);
+ if (r < 0)
+ return r;
+ if (!vlanid_is_valid(id))
+ return -ERANGE;
+
+ *ret = id;
+ return 0;
+}
+
+int config_parse_vlanid(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ uint16_t *id = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_vlanid(rvalue, id);
+ if (r == -ERANGE) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "VLAN identifier outside of valid range 0…4094, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VLAN identifier value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ return 0;
+}
diff --git a/src/libsystemd-shared/src/watchdog.c b/src/libsystemd-shared/src/watchdog.c
new file mode 100644
index 0000000000..95e327cea0
--- /dev/null
+++ b/src/libsystemd-shared/src/watchdog.c
@@ -0,0 +1,165 @@
+/***
+ 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 <sys/ioctl.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include <linux/watchdog.h>
+
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/time-util.h"
+#include "systemd-shared/watchdog.h"
+
+static int watchdog_fd = -1;
+static usec_t watchdog_timeout = USEC_INFINITY;
+
+static int update_timeout(void) {
+ int r;
+
+ if (watchdog_fd < 0)
+ return 0;
+
+ if (watchdog_timeout == USEC_INFINITY)
+ return 0;
+ else if (watchdog_timeout == 0) {
+ int flags;
+
+ flags = WDIOS_DISABLECARD;
+ r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags);
+ if (r < 0)
+ return log_warning_errno(errno, "Failed to disable hardware watchdog: %m");
+ } else {
+ int sec, flags;
+ char buf[FORMAT_TIMESPAN_MAX];
+
+ sec = (int) ((watchdog_timeout + USEC_PER_SEC - 1) / USEC_PER_SEC);
+ r = ioctl(watchdog_fd, WDIOC_SETTIMEOUT, &sec);
+ if (r < 0)
+ return log_warning_errno(errno, "Failed to set timeout to %is: %m", sec);
+
+ watchdog_timeout = (usec_t) sec * USEC_PER_SEC;
+ log_info("Set hardware watchdog to %s.", format_timespan(buf, sizeof(buf), watchdog_timeout, 0));
+
+ flags = WDIOS_ENABLECARD;
+ r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags);
+ if (r < 0) {
+ /* ENOTTY means the watchdog is always enabled so we're fine */
+ log_full(errno == ENOTTY ? LOG_DEBUG : LOG_WARNING,
+ "Failed to enable hardware watchdog: %m");
+ if (errno != ENOTTY)
+ return -errno;
+ }
+
+ r = ioctl(watchdog_fd, WDIOC_KEEPALIVE, 0);
+ if (r < 0)
+ return log_warning_errno(errno, "Failed to ping hardware watchdog: %m");
+ }
+
+ return 0;
+}
+
+static int open_watchdog(void) {
+ struct watchdog_info ident;
+
+ if (watchdog_fd >= 0)
+ return 0;
+
+ watchdog_fd = open("/dev/watchdog", O_WRONLY|O_CLOEXEC);
+ if (watchdog_fd < 0)
+ return -errno;
+
+ if (ioctl(watchdog_fd, WDIOC_GETSUPPORT, &ident) >= 0)
+ log_info("Hardware watchdog '%s', version %x",
+ ident.identity,
+ ident.firmware_version);
+
+ return update_timeout();
+}
+
+int watchdog_set_timeout(usec_t *usec) {
+ int r;
+
+ watchdog_timeout = *usec;
+
+ /* If we didn't open the watchdog yet and didn't get any
+ * explicit timeout value set, don't do anything */
+ if (watchdog_fd < 0 && watchdog_timeout == USEC_INFINITY)
+ return 0;
+
+ if (watchdog_fd < 0)
+ r = open_watchdog();
+ else
+ r = update_timeout();
+
+ *usec = watchdog_timeout;
+
+ return r;
+}
+
+int watchdog_ping(void) {
+ int r;
+
+ if (watchdog_fd < 0) {
+ r = open_watchdog();
+ if (r < 0)
+ return r;
+ }
+
+ r = ioctl(watchdog_fd, WDIOC_KEEPALIVE, 0);
+ if (r < 0)
+ return log_warning_errno(errno, "Failed to ping hardware watchdog: %m");
+
+ return 0;
+}
+
+void watchdog_close(bool disarm) {
+ int r;
+
+ if (watchdog_fd < 0)
+ return;
+
+ if (disarm) {
+ int flags;
+
+ /* Explicitly disarm it */
+ flags = WDIOS_DISABLECARD;
+ r = ioctl(watchdog_fd, WDIOC_SETOPTIONS, &flags);
+ if (r < 0)
+ log_warning_errno(errno, "Failed to disable hardware watchdog: %m");
+
+ /* To be sure, use magic close logic, too */
+ for (;;) {
+ static const char v = 'V';
+
+ if (write(watchdog_fd, &v, 1) > 0)
+ break;
+
+ if (errno != EINTR) {
+ log_error_errno(errno, "Failed to disarm watchdog timer: %m");
+ break;
+ }
+ }
+ }
+
+ watchdog_fd = safe_close(watchdog_fd);
+}