diff options
-rw-r--r-- | src/core/dbus-job.c | 29 | ||||
-rw-r--r-- | src/core/dbus-job.h | 2 | ||||
-rw-r--r-- | src/core/dbus-manager.c | 162 | ||||
-rw-r--r-- | src/core/dbus-scope.c | 7 | ||||
-rw-r--r-- | src/core/dbus-unit.c | 24 | ||||
-rw-r--r-- | src/core/dbus.c | 23 | ||||
-rw-r--r-- | src/core/dbus.h | 5 | ||||
-rw-r--r-- | src/core/job.c | 10 | ||||
-rw-r--r-- | src/core/job.h | 12 | ||||
-rw-r--r-- | src/core/manager.h | 3 | ||||
-rw-r--r-- | src/core/org.freedesktop.systemd1.conf | 108 | ||||
-rw-r--r-- | src/core/org.freedesktop.systemd1.policy.in.in | 30 | ||||
-rw-r--r-- | src/hostname/hostnamed.c | 14 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/bus-internal.h | 2 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/bus-match.c | 10 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/bus-objects.c | 16 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/bus-slot.c | 20 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/bus-util.c | 59 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/bus-util.h | 6 | ||||
-rw-r--r-- | src/libsystemd/sd-bus/sd-bus.c | 28 | ||||
-rw-r--r-- | src/locale/localed.c | 18 | ||||
-rw-r--r-- | src/login/logind-dbus.c | 64 | ||||
-rw-r--r-- | src/login/logind.c | 2 | ||||
-rw-r--r-- | src/systemd/sd-bus.h | 6 | ||||
-rw-r--r-- | src/timedate/timedated.c | 14 |
25 files changed, 530 insertions, 144 deletions
diff --git a/src/core/dbus-job.c b/src/core/dbus-job.c index 8e4ffc977d..eb7257d681 100644 --- a/src/core/dbus-job.c +++ b/src/core/dbus-job.c @@ -29,6 +29,23 @@ static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, job_type, JobType); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_state, job_state, JobState); +static int verify_sys_admin_or_owner_sync(sd_bus_message *message, Job *j, sd_bus_error *error) { + _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + int r; + + if (sd_bus_track_contains(j->clients, sd_bus_message_get_sender(message))) + return 0; /* One of the job owners is calling us */ + + r = sd_bus_query_sender_privilege(message, CAP_SYS_ADMIN); + if (r < 0) + return r; + if (r == 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Access denied to perform action"); + + /* Root has called us */ + return 0; +} + static int property_get_unit( sd_bus *bus, const char *path, @@ -52,7 +69,7 @@ static int property_get_unit( return sd_bus_message_append(reply, "(so)", j->unit->id, p); } -static int method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { +int bus_job_method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { Job *j = userdata; int r; @@ -60,6 +77,10 @@ static int method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, s assert(message); assert(j); + r = verify_sys_admin_or_owner_sync(message, j, error); + if (r < 0) + return r; + r = selinux_unit_access_check(j->unit, message, "stop", error); if (r < 0) return r; @@ -71,7 +92,7 @@ static int method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, s const sd_bus_vtable bus_job_vtable[] = { SD_BUS_VTABLE_START(0), - SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, 0), + SD_BUS_METHOD("Cancel", NULL, NULL, bus_job_method_cancel, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Job, id), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Unit", "(so)", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("JobType", "s", property_get_type, offsetof(Job, type), SD_BUS_VTABLE_PROPERTY_CONST), @@ -132,7 +153,7 @@ void bus_job_send_change_signal(Job *j) { j->in_dbus_queue = false; } - r = bus_foreach_bus(j->manager, j->subscribed, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal, j); + r = bus_foreach_bus(j->manager, j->clients, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal, j); if (r < 0) log_debug("Failed to send job change signal for %u: %s", j->id, strerror(-r)); @@ -176,7 +197,7 @@ void bus_job_send_removed_signal(Job *j) { if (!j->sent_dbus_new_signal) bus_job_send_change_signal(j); - r = bus_foreach_bus(j->manager, j->subscribed, send_removed_signal, j); + r = bus_foreach_bus(j->manager, j->clients, send_removed_signal, j); if (r < 0) log_debug("Failed to send job remove signal for %u: %s", j->id, strerror(-r)); } diff --git a/src/core/dbus-job.h b/src/core/dbus-job.h index d1d0f6ddf0..6c2fc0789c 100644 --- a/src/core/dbus-job.h +++ b/src/core/dbus-job.h @@ -26,5 +26,7 @@ extern const sd_bus_vtable bus_job_vtable[]; +int bus_job_method_cancel(sd_bus *bus, sd_bus_message *message, void *job, sd_bus_error *error); + void bus_job_send_change_signal(Job *j); void bus_job_send_removed_signal(Job *j); diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c index ffef0c7d05..008cf6b4cd 100644 --- a/src/core/dbus-manager.c +++ b/src/core/dbus-manager.c @@ -34,6 +34,7 @@ #include "architecture.h" #include "env-util.h" #include "dbus.h" +#include "dbus-job.h" #include "dbus-manager.h" #include "dbus-unit.h" #include "dbus-snapshot.h" @@ -352,6 +353,8 @@ static int method_get_unit(sd_bus *bus, sd_bus_message *message, void *userdata, assert(message); assert(m); + /* Anyone can call this method */ + r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -384,6 +387,8 @@ static int method_get_unit_by_pid(sd_bus *bus, sd_bus_message *message, void *us assert_cc(sizeof(pid_t) == sizeof(uint32_t)); + /* Anyone can call this method */ + r = sd_bus_message_read(message, "u", &pid); if (r < 0) return r; @@ -426,6 +431,8 @@ static int method_load_unit(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); + /* Anyone can call this method */ + r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -454,6 +461,12 @@ static int method_start_unit_generic(sd_bus *bus, sd_bus_message *message, Manag assert(message); assert(m); + r = bus_verify_manage_unit_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -503,6 +516,12 @@ static int method_start_unit_replace(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); + r = bus_verify_manage_unit_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "s", &old_name); if (r < 0) return r; @@ -524,6 +543,13 @@ static int method_kill_unit(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); + /* Like bus_verify_manage_unit_async(), but uses CAP_SYS_KILL */ + r = bus_verify_manage_unit_async_for_kill(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -545,6 +571,12 @@ static int method_reset_failed_unit(sd_bus *bus, sd_bus_message *message, void * assert(message); assert(m); + r = bus_verify_manage_unit_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -566,6 +598,12 @@ static int method_set_unit_properties(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); + r = bus_verify_manage_unit_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -589,6 +627,12 @@ static int method_start_transient_unit(sd_bus *bus, sd_bus_message *message, voi assert(message); assert(m); + r = bus_verify_manage_unit_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "ss", &name, &smode); if (r < 0) return r; @@ -648,6 +692,8 @@ static int method_get_job(sd_bus *bus, sd_bus_message *message, void *userdata, assert(message); assert(m); + /* Anyone can call this method */ + r = sd_bus_message_read(message, "u", &id); if (r < 0) return r; @@ -685,13 +731,7 @@ static int method_cancel_job(sd_bus *bus, sd_bus_message *message, void *userdat if (!j) return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id); - r = selinux_unit_access_check(j->unit, message, "stop", error); - if (r < 0) - return r; - - job_finish_and_invalidate(j, JOB_CANCELED, true); - - return sd_bus_reply_method_return(message, NULL); + return bus_job_method_cancel(bus, message, j, error); } static int method_clear_jobs(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { @@ -740,6 +780,8 @@ static int list_units_filtered(sd_bus *bus, sd_bus_message *message, void *userd assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -826,6 +868,8 @@ static int method_list_jobs(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -876,6 +920,8 @@ static int method_subscribe(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -909,6 +955,8 @@ static int method_unsubscribe(sd_bus *bus, sd_bus_message *message, void *userda assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -935,6 +983,8 @@ static int method_dump(sd_bus *bus, sd_bus_message *message, void *userdata, sd_ assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -1024,6 +1074,12 @@ static int method_reload(sd_bus *bus, sd_bus_message *message, void *userdata, s assert(message); assert(m); + r = bus_verify_reload_daemon_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = selinux_access_check(message, "reload", error); if (r < 0) return r; @@ -1052,6 +1108,12 @@ static int method_reexecute(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); + r = bus_verify_reload_daemon_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = selinux_access_check(message, "reload", error); if (r < 0) return r; @@ -1327,6 +1389,8 @@ static int method_list_unit_files(sd_bus *bus, sd_bus_message *message, void *us assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -1378,6 +1442,8 @@ static int method_get_unit_file_state(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -1405,6 +1471,8 @@ static int method_get_default_target(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); + /* Anyone can call this method */ + r = selinux_access_check(message, "status", error); if (r < 0) return r; @@ -1506,6 +1574,12 @@ static int method_enable_unit_files_generic( assert(message); assert(m); + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; @@ -1578,6 +1652,12 @@ static int method_preset_unit_files_with_mode(sd_bus *bus, sd_bus_message *messa assert(message); assert(m); + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; @@ -1634,6 +1714,12 @@ static int method_disable_unit_files_generic( assert(message); assert(m); + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = selinux_access_check(message, verb, error); if (r < 0) return r; @@ -1675,6 +1761,12 @@ static int method_set_default_target(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = selinux_access_check(message, "enable", error); if (r < 0) return r; @@ -1705,6 +1797,12 @@ static int method_preset_all_unit_files(sd_bus *bus, sd_bus_message *message, vo assert(message); assert(m); + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = selinux_access_check(message, "enable", error); if (r < 0) return r; @@ -1772,20 +1870,20 @@ const sd_bus_vtable bus_manager_vtable[] = { SD_BUS_METHOD("GetUnit", "s", "o", method_get_unit, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetUnitByPID", "u", "o", method_get_unit_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("LoadUnit", "s", "o", method_load_unit, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("StartUnit", "ss", "o", method_start_unit, 0), - SD_BUS_METHOD("StartUnitReplace", "sss", "o", method_start_unit_replace, 0), - SD_BUS_METHOD("StopUnit", "ss", "o", method_stop_unit, 0), - SD_BUS_METHOD("ReloadUnit", "ss", "o", method_reload_unit, 0), - SD_BUS_METHOD("RestartUnit", "ss", "o", method_restart_unit, 0), - SD_BUS_METHOD("TryRestartUnit", "ss", "o", method_try_restart_unit, 0), - SD_BUS_METHOD("ReloadOrRestartUnit", "ss", "o", method_reload_or_restart_unit, 0), - SD_BUS_METHOD("ReloadOrTryRestartUnit", "ss", "o", method_reload_or_try_restart_unit, 0), - SD_BUS_METHOD("KillUnit", "ssi", NULL, method_kill_unit, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)), - SD_BUS_METHOD("ResetFailedUnit", "s", NULL, method_reset_failed_unit, 0), - SD_BUS_METHOD("SetUnitProperties", "sba(sv)", NULL, method_set_unit_properties, 0), - SD_BUS_METHOD("StartTransientUnit", "ssa(sv)a(sa(sv))", "o", method_start_transient_unit, 0), + SD_BUS_METHOD("StartUnit", "ss", "o", method_start_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("StartUnitReplace", "sss", "o", method_start_unit_replace, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("StopUnit", "ss", "o", method_stop_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ReloadUnit", "ss", "o", method_reload_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("RestartUnit", "ss", "o", method_restart_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("TryRestartUnit", "ss", "o", method_try_restart_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ReloadOrRestartUnit", "ss", "o", method_reload_or_restart_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ReloadOrTryRestartUnit", "ss", "o", method_reload_or_try_restart_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("KillUnit", "ssi", NULL, method_kill_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ResetFailedUnit", "s", NULL, method_reset_failed_unit, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("SetUnitProperties", "sba(sv)", NULL, method_set_unit_properties, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("StartTransientUnit", "ssa(sv)a(sa(sv))", "o", method_start_transient_unit, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetJob", "u", "o", method_get_job, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CancelJob", "u", NULL, method_cancel_job, 0), + SD_BUS_METHOD("CancelJob", "u", NULL, method_cancel_job, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("ClearJobs", NULL, NULL, method_clear_jobs, 0), SD_BUS_METHOD("ResetFailed", NULL, NULL, method_reset_failed, 0), SD_BUS_METHOD("ListUnits", NULL, "a(ssssssouso)", method_list_units, SD_BUS_VTABLE_UNPRIVILEGED), @@ -1796,8 +1894,8 @@ const sd_bus_vtable bus_manager_vtable[] = { SD_BUS_METHOD("Dump", NULL, "s", method_dump, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("CreateSnapshot", "sb", "o", method_create_snapshot, 0), SD_BUS_METHOD("RemoveSnapshot", "s", NULL, method_remove_snapshot, 0), - SD_BUS_METHOD("Reload", NULL, NULL, method_reload, 0), - SD_BUS_METHOD("Reexecute", NULL, NULL, method_reexecute, 0), + SD_BUS_METHOD("Reload", NULL, NULL, method_reload, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("Reexecute", NULL, NULL, method_reexecute, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Exit", NULL, NULL, method_exit, 0), SD_BUS_METHOD("Reboot", NULL, NULL, method_reboot, SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)), SD_BUS_METHOD("PowerOff", NULL, NULL, method_poweroff, SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)), @@ -1809,17 +1907,17 @@ const sd_bus_vtable bus_manager_vtable[] = { SD_BUS_METHOD("UnsetAndSetEnvironment", "asas", NULL, method_unset_and_set_environment, 0), SD_BUS_METHOD("ListUnitFiles", NULL, "a(ss)", method_list_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetUnitFileState", "s", "s", method_get_unit_file_state, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("EnableUnitFiles", "asbb", "ba(sss)", method_enable_unit_files, 0), - SD_BUS_METHOD("DisableUnitFiles", "asb", "a(sss)", method_disable_unit_files, 0), - SD_BUS_METHOD("ReenableUnitFiles", "asbb", "ba(sss)", method_reenable_unit_files, 0), - SD_BUS_METHOD("LinkUnitFiles", "asbb", "a(sss)", method_link_unit_files, 0), - SD_BUS_METHOD("PresetUnitFiles", "asbb", "ba(sss)", method_preset_unit_files, 0), - SD_BUS_METHOD("PresetUnitFilesWithMode", "assbb", "ba(sss)", method_preset_unit_files_with_mode, 0), - SD_BUS_METHOD("MaskUnitFiles", "asbb", "a(sss)", method_mask_unit_files, 0), - SD_BUS_METHOD("UnmaskUnitFiles", "asb", "a(sss)", method_unmask_unit_files, 0), - SD_BUS_METHOD("SetDefaultTarget", "sb", "a(sss)", method_set_default_target, 0), + SD_BUS_METHOD("EnableUnitFiles", "asbb", "ba(sss)", method_enable_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("DisableUnitFiles", "asb", "a(sss)", method_disable_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ReenableUnitFiles", "asbb", "ba(sss)", method_reenable_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("LinkUnitFiles", "asbb", "a(sss)", method_link_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("PresetUnitFiles", "asbb", "ba(sss)", method_preset_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("PresetUnitFilesWithMode", "assbb", "ba(sss)", method_preset_unit_files_with_mode, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("MaskUnitFiles", "asbb", "a(sss)", method_mask_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("UnmaskUnitFiles", "asb", "a(sss)", method_unmask_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("SetDefaultTarget", "sb", "a(sss)", method_set_default_target, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetDefaultTarget", NULL, "s", method_get_default_target, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("PresetAllUnitFiles", "sbb", "a(sss)", method_preset_all_unit_files, 0), + SD_BUS_METHOD("PresetAllUnitFiles", "sbb", "a(sss)", method_preset_all_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_SIGNAL("UnitNew", "so", 0), SD_BUS_SIGNAL("UnitRemoved", "so", 0), diff --git a/src/core/dbus-scope.c b/src/core/dbus-scope.c index fbb4ff5646..a762223c81 100644 --- a/src/core/dbus-scope.c +++ b/src/core/dbus-scope.c @@ -25,6 +25,7 @@ #include "dbus-cgroup.h" #include "dbus-kill.h" #include "dbus-scope.h" +#include "dbus.h" #include "bus-util.h" #include "bus-internal.h" #include "bus-errors.h" @@ -37,6 +38,12 @@ static int bus_scope_abandon(sd_bus *bus, sd_bus_message *message, void *userdat assert(message); assert(s); + r = bus_verify_manage_unit_async(UNIT(s)->manager, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = scope_abandon(s); if (sd_bus_error_is_set(error)) return r; diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c index 8f23fe76ce..8fe83aefec 100644 --- a/src/core/dbus-unit.c +++ b/src/core/dbus-unit.c @@ -421,6 +421,12 @@ int bus_unit_method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, s assert(message); assert(u); + r = bus_verify_manage_unit_async_for_kill(u->manager, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "si", &swho, &signo); if (r < 0) return r; @@ -455,6 +461,12 @@ int bus_unit_method_reset_failed(sd_bus *bus, sd_bus_message *message, void *use assert(message); assert(u); + r = bus_verify_manage_unit_async(u->manager, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = selinux_unit_access_check(u, message, "reload", error); if (r < 0) return r; @@ -472,6 +484,12 @@ int bus_unit_method_set_properties(sd_bus *bus, sd_bus_message *message, void *u assert(message); assert(u); + r = bus_verify_manage_unit_async(u->manager, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = sd_bus_message_read(message, "b", &runtime); if (r < 0) return r; @@ -758,13 +776,13 @@ int bus_unit_queue_job( return r; if (bus == u->manager->api_bus) { - if (!j->subscribed) { - r = sd_bus_track_new(bus, &j->subscribed, NULL, NULL); + if (!j->clients) { + r = sd_bus_track_new(bus, &j->clients, NULL, NULL); if (r < 0) return r; } - r = sd_bus_track_add_sender(j->subscribed, message); + r = sd_bus_track_add_sender(j->clients, message); if (r < 0) return r; } diff --git a/src/core/dbus.c b/src/core/dbus.c index fb8e4963e1..e7eee3c6d1 100644 --- a/src/core/dbus.c +++ b/src/core/dbus.c @@ -1048,8 +1048,8 @@ static void destroy_bus(Manager *m, sd_bus **bus) { m->subscribed = sd_bus_track_unref(m->subscribed); HASHMAP_FOREACH(j, m->jobs, i) - if (j->subscribed && sd_bus_track_get_bus(j->subscribed) == *bus) - j->subscribed = sd_bus_track_unref(j->subscribed); + if (j->clients && sd_bus_track_get_bus(j->clients) == *bus) + j->clients = sd_bus_track_unref(j->clients); /* Get rid of queued message on this bus */ if (m->queued_message_bus == *bus) { @@ -1092,6 +1092,8 @@ void bus_done(Manager *m) { m->private_listen_event_source = sd_event_source_unref(m->private_listen_event_source); m->private_listen_fd = safe_close(m->private_listen_fd); + + bus_verify_polkit_async_registry_free(m->polkit_registry); } int bus_fdset_add_all(Manager *m, FDSet *fds) { @@ -1215,3 +1217,20 @@ int bus_track_coldplug(Manager *m, sd_bus_track **t, char ***l) { return r; } + +int bus_verify_manage_unit_async(Manager *m, sd_bus_message *call, sd_bus_error *error) { + return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.manage-units", false, &m->polkit_registry, error); +} + +/* Same as bus_verify_manage_unit_async(), but checks for CAP_KILL instead of CAP_SYS_ADMIN */ +int bus_verify_manage_unit_async_for_kill(Manager *m, sd_bus_message *call, sd_bus_error *error) { + return bus_verify_polkit_async(call, CAP_KILL, "org.freedesktop.systemd1.manage-units", false, &m->polkit_registry, error); +} + +int bus_verify_manage_unit_files_async(Manager *m, sd_bus_message *call, sd_bus_error *error) { + return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.manage-unit-files", false, &m->polkit_registry, error); +} + +int bus_verify_reload_daemon_async(Manager *m, sd_bus_message *call, sd_bus_error *error) { + return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.reload-daemon", false, &m->polkit_registry, error); +} diff --git a/src/core/dbus.h b/src/core/dbus.h index bfb236ec8e..d04f5326c6 100644 --- a/src/core/dbus.h +++ b/src/core/dbus.h @@ -35,3 +35,8 @@ int bus_track_deserialize_item(char ***l, const char *line); int bus_track_coldplug(Manager *m, sd_bus_track **t, char ***l); int bus_foreach_bus(Manager *m, sd_bus_track *subscribed2, int (*send_message)(sd_bus *bus, void *userdata), void *userdata); + +int bus_verify_manage_unit_async(Manager *m, sd_bus_message *call, sd_bus_error *error); +int bus_verify_manage_unit_async_for_kill(Manager *m, sd_bus_message *call, sd_bus_error *error); +int bus_verify_manage_unit_files_async(Manager *m, sd_bus_message *call, sd_bus_error *error); +int bus_verify_reload_daemon_async(Manager *m, sd_bus_message *call, sd_bus_error *error); diff --git a/src/core/job.c b/src/core/job.c index dc4f44150c..5e4987f4e2 100644 --- a/src/core/job.c +++ b/src/core/job.c @@ -90,8 +90,8 @@ void job_free(Job *j) { sd_event_source_unref(j->timer_event_source); - sd_bus_track_unref(j->subscribed); - strv_free(j->deserialized_subscribed); + sd_bus_track_unref(j->clients); + strv_free(j->deserialized_clients); free(j); } @@ -937,7 +937,7 @@ int job_serialize(Job *j, FILE *f, FDSet *fds) { if (j->begin_usec > 0) fprintf(f, "job-begin="USEC_FMT"\n", j->begin_usec); - bus_track_serialize(j->subscribed, f); + bus_track_serialize(j->clients, f); /* End marker */ fputc('\n', f); @@ -1043,7 +1043,7 @@ int job_deserialize(Job *j, FILE *f, FDSet *fds) { } else if (streq(l, "subscribed")) { - if (strv_extend(&j->deserialized_subscribed, v) < 0) + if (strv_extend(&j->deserialized_clients, v) < 0) return log_oom(); } } @@ -1056,7 +1056,7 @@ int job_coldplug(Job *j) { /* After deserialization is complete and the bus connection * set up again, let's start watching our subscribers again */ - r = bus_track_coldplug(j->manager, &j->subscribed, &j->deserialized_subscribed); + r = bus_track_coldplug(j->manager, &j->clients, &j->deserialized_clients); if (r < 0) return r; diff --git a/src/core/job.h b/src/core/job.h index 30d41d9edd..1e7c61b04f 100644 --- a/src/core/job.h +++ b/src/core/job.h @@ -145,9 +145,15 @@ struct Job { sd_event_source *timer_event_source; usec_t begin_usec; - /* There can be more than one client, because of job merging. */ - sd_bus_track *subscribed; - char **deserialized_subscribed; + /* + * This tracks where to send signals, and also which clients + * are allowed to call DBus methods on the job (other than + * root). + * + * There can be more than one client, because of job merging. + */ + sd_bus_track *clients; + char **deserialized_clients; JobResult result; diff --git a/src/core/manager.h b/src/core/manager.h index aa6c76fa5a..7cb76f7f00 100644 --- a/src/core/manager.h +++ b/src/core/manager.h @@ -276,6 +276,9 @@ struct Manager { /* Reference to the kdbus bus control fd */ int kdbus_fd; + + /* Used for processing polkit authorization responses */ + Hashmap *polkit_registry; }; int manager_new(SystemdRunningAs running_as, bool test_run, Manager **m); diff --git a/src/core/org.freedesktop.systemd1.conf b/src/core/org.freedesktop.systemd1.conf index 9dfca81cb1..3e1382524a 100644 --- a/src/core/org.freedesktop.systemd1.conf +++ b/src/core/org.freedesktop.systemd1.conf @@ -28,6 +28,8 @@ <policy context="default"> <deny send_destination="org.freedesktop.systemd1"/> + <!-- Completely open to anyone --> + <allow send_destination="org.freedesktop.systemd1" send_interface="org.freedesktop.DBus.Introspectable"/> @@ -94,6 +96,112 @@ send_interface="org.freedesktop.systemd1.Manager" send_member="GetDefaultTarget"/> + <!-- Managed via polkit or other criteria --> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="StartUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="StartUnitReplace"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="StopUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="ReloadUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="RestartUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="TryRestartUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="ReloadOrRestartUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="ReloadOrTryRestartUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="KillUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="ResetFailedUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="SetUnitProperties"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="StartTransientUnit"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="CancelJob"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="Reload"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="Reexecute"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="EnableUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="DisableUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="ReenableUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="LinkUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="PresetUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="PresetUnitFilesWithMode"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="MaskUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="UnmaskUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="SetDefaultTarget"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Manager" + send_member="PresetAllUnitFiles"/> + + <allow send_destination="org.freedesktop.systemd1" + send_interface="org.freedesktop.systemd1.Job" + send_member="Cancel"/> + <allow receive_sender="org.freedesktop.systemd1"/> </policy> diff --git a/src/core/org.freedesktop.systemd1.policy.in.in b/src/core/org.freedesktop.systemd1.policy.in.in index 51bdafac45..387677d396 100644 --- a/src/core/org.freedesktop.systemd1.policy.in.in +++ b/src/core/org.freedesktop.systemd1.policy.in.in @@ -38,4 +38,34 @@ <annotate key="org.freedesktop.policykit.exec.path">@bindir@/systemd-stdio-bridge</annotate> </action> + <action id="org.freedesktop.systemd1.manage-units"> + <_description>Manage system services or units</_description> + <_message>Authentication is required to manage system services or units.</_message> + <defaults> + <allow_any>auth_admin</allow_any> + <allow_inactive>auth_admin</allow_inactive> + <allow_active>auth_admin_keep</allow_active> + </defaults> + </action> + + <action id="org.freedesktop.systemd1.manage-unit-files"> + <_description>Manage system service or unit files</_description> + <_message>Authentication is required to manage system service or unit files.</_message> + <defaults> + <allow_any>auth_admin</allow_any> + <allow_inactive>auth_admin</allow_inactive> + <allow_active>auth_admin_keep</allow_active> + </defaults> + </action> + + <action id="org.freedesktop.systemd1.reload-daemon"> + <_description>Reload the systemd state</_description> + <_message>Authentication is required to reload the systemd state.</_message> + <defaults> + <allow_any>auth_admin</allow_any> + <allow_inactive>auth_admin</allow_inactive> + <allow_active>auth_admin_keep</allow_active> + </defaults> + </action> + </policyconfig> diff --git a/src/hostname/hostnamed.c b/src/hostname/hostnamed.c index dae73b390f..d31fef7abe 100644 --- a/src/hostname/hostnamed.c +++ b/src/hostname/hostnamed.c @@ -69,11 +69,11 @@ static void context_reset(Context *c) { } } -static void context_free(Context *c, sd_bus *bus) { +static void context_free(Context *c) { assert(c); context_reset(c); - bus_verify_polkit_async_registry_free(bus, c->polkit_registry); + bus_verify_polkit_async_registry_free(c->polkit_registry); } static int context_read_data(Context *c) { @@ -426,7 +426,7 @@ static int method_set_hostname(sd_bus *bus, sd_bus_message *m, void *userdata, s if (streq_ptr(name, c->data[PROP_HOSTNAME])) return sd_bus_reply_method_return(m, NULL); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_ADMIN, "org.freedesktop.hostname1.set-hostname", interactive, error, method_set_hostname, c); + r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.hostname1.set-hostname", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -468,7 +468,7 @@ static int method_set_static_hostname(sd_bus *bus, sd_bus_message *m, void *user if (streq_ptr(name, c->data[PROP_STATIC_HOSTNAME])) return sd_bus_reply_method_return(m, NULL); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_ADMIN, "org.freedesktop.hostname1.set-static-hostname", interactive, error, method_set_static_hostname, c); + r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.hostname1.set-static-hostname", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -533,10 +533,10 @@ static int set_machine_info(Context *c, sd_bus *bus, sd_bus_message *m, int prop * same time as the static one, use the same policy action for * both... */ - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_ADMIN, + r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : - "org.freedesktop.hostname1.set-machine-info", interactive, error, cb, c); + "org.freedesktop.hostname1.set-machine-info", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -723,7 +723,7 @@ int main(int argc, char *argv[]) { } finish: - context_free(&context, bus); + context_free(&context); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; } diff --git a/src/libsystemd/sd-bus/bus-internal.h b/src/libsystemd/sd-bus/bus-internal.h index 618e82c98f..f2ccdfd177 100644 --- a/src/libsystemd/sd-bus/bus-internal.h +++ b/src/libsystemd/sd-bus/bus-internal.h @@ -298,6 +298,8 @@ struct sd_bus { sd_bus_message *current_message; sd_bus_slot *current_slot; + sd_bus_message_handler_t current_handler; + void *current_userdata; sd_bus **default_bus_ptr; pid_t tid; diff --git a/src/libsystemd/sd-bus/bus-match.c b/src/libsystemd/sd-bus/bus-match.c index 9e0769caa6..88b61a75be 100644 --- a/src/libsystemd/sd-bus/bus-match.c +++ b/src/libsystemd/sd-bus/bus-match.c @@ -294,11 +294,17 @@ int bus_match_run( sd_bus_slot *slot; slot = container_of(node->leaf.callback, sd_bus_slot, match_callback); - if (bus) + if (bus) { bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = node->leaf.callback->callback; + bus->current_userdata = slot->userdata; + } r = node->leaf.callback->callback(bus, m, slot->userdata, &error_buffer); - if (bus) + if (bus) { + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); + } r = bus_maybe_reply_error(m, r, &error_buffer); if (r != 0) diff --git a/src/libsystemd/sd-bus/bus-objects.c b/src/libsystemd/sd-bus/bus-objects.c index 00e8e9655b..3a2de6520e 100644 --- a/src/libsystemd/sd-bus/bus-objects.c +++ b/src/libsystemd/sd-bus/bus-objects.c @@ -51,7 +51,9 @@ static int node_vtable_get_userdata( u = s->userdata; if (c->find) { bus->current_slot = sd_bus_slot_ref(s); + bus->current_userdata = u; r = c->find(bus, path, c->interface, u, &u, error); + bus->current_userdata = NULL; bus->current_slot = sd_bus_slot_unref(s); if (r < 0) @@ -123,7 +125,9 @@ static int add_enumerated_to_set( slot = container_of(c, sd_bus_slot, node_enumerator); bus->current_slot = sd_bus_slot_ref(slot); + bus->current_userdata = slot->userdata; r = c->callback(bus, prefix, slot->userdata, &children, error); + bus->current_userdata = NULL; bus->current_slot = sd_bus_slot_unref(slot); if (r < 0) @@ -273,7 +277,11 @@ static int node_callbacks_run( slot = container_of(c, sd_bus_slot, node_callback); bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = c->callback; + bus->current_userdata = slot->userdata; r = c->callback(bus, m, slot->userdata, &error_buffer); + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); r = bus_maybe_reply_error(m, r, &error_buffer); @@ -387,7 +395,11 @@ static int method_callbacks_run( slot = container_of(c->parent, sd_bus_slot, node_vtable); bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = c->vtable->x.method.handler; + bus->current_userdata = u; r = c->vtable->x.method.handler(bus, m, u, &error); + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); return bus_maybe_reply_error(m, r, &error); @@ -426,7 +438,9 @@ static int invoke_property_get( if (v->x.property.get) { bus->current_slot = sd_bus_slot_ref(slot); + bus->current_userdata = userdata; r = v->x.property.get(bus, path, interface, property, reply, userdata, error); + bus->current_userdata = NULL; bus->current_slot = sd_bus_slot_unref(slot); if (r < 0) @@ -488,7 +502,9 @@ static int invoke_property_set( if (v->x.property.set) { bus->current_slot = sd_bus_slot_ref(slot); + bus->current_userdata = userdata; r = v->x.property.set(bus, path, interface, property, value, userdata, error); + bus->current_userdata = NULL; bus->current_slot = sd_bus_slot_unref(slot); if (r < 0) diff --git a/src/libsystemd/sd-bus/bus-slot.c b/src/libsystemd/sd-bus/bus-slot.c index 5e927511d5..d6793c29e9 100644 --- a/src/libsystemd/sd-bus/bus-slot.c +++ b/src/libsystemd/sd-bus/bus-slot.c @@ -245,3 +245,23 @@ _public_ sd_bus_message *sd_bus_slot_get_current_message(sd_bus_slot *slot) { return slot->bus->current_message; } + +_public_ sd_bus_message_handler_t sd_bus_slot_get_current_handler(sd_bus_slot *slot) { + assert_return(slot, NULL); + assert_return(slot->type >= 0, NULL); + + if (slot->bus->current_slot != slot) + return NULL; + + return slot->bus->current_handler; +} + +_public_ void* sd_bus_slot_get_current_userdata(sd_bus_slot *slot) { + assert_return(slot, NULL); + assert_return(slot->type >= 0, NULL); + + if (slot->bus->current_slot != slot) + return NULL; + + return slot->bus->current_userdata; +} diff --git a/src/libsystemd/sd-bus/bus-util.c b/src/libsystemd/sd-bus/bus-util.c index 0ab11c3905..44facc6ef9 100644 --- a/src/libsystemd/sd-bus/bus-util.c +++ b/src/libsystemd/sd-bus/bus-util.c @@ -184,8 +184,7 @@ int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) { } int bus_verify_polkit( - sd_bus *bus, - sd_bus_message *m, + sd_bus_message *call, int capability, const char *action, bool interactive, @@ -194,28 +193,26 @@ int bus_verify_polkit( int r; - assert(bus); - assert(m); + assert(call); assert(action); - r = sd_bus_query_sender_privilege(m, capability); + r = sd_bus_query_sender_privilege(call, capability); if (r < 0) return r; - if (r > 0) + else if (r > 0) return 1; - #ifdef ENABLE_POLKIT else { _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; int authorized = false, challenge = false; const char *sender; - sender = sd_bus_message_get_sender(m); + sender = sd_bus_message_get_sender(call); if (!sender) return -EBADMSG; r = sd_bus_call_method( - bus, + call->bus, "org.freedesktop.PolicyKit1", "/org/freedesktop/PolicyKit1/Authority", "org.freedesktop.PolicyKit1.Authority", @@ -316,30 +313,29 @@ finish: #endif int bus_verify_polkit_async( - sd_bus *bus, - Hashmap **registry, - sd_bus_message *m, + sd_bus_message *call, int capability, const char *action, bool interactive, - sd_bus_error *error, - sd_bus_message_handler_t callback, - void *userdata) { + Hashmap **registry, + sd_bus_error *error) { #ifdef ENABLE_POLKIT _cleanup_bus_message_unref_ sd_bus_message *pk = NULL; + _cleanup_bus_slot_unref_ sd_bus_slot *slot = NULL; AsyncPolkitQuery *q; const char *sender; + sd_bus_message_handler_t callback; + void *userdata; #endif int r; - assert(bus); - assert(registry); - assert(m); + assert(call); assert(action); + assert(registry); #ifdef ENABLE_POLKIT - q = hashmap_get(*registry, m); + q = hashmap_get(*registry, call); if (q) { int authorized, challenge; @@ -376,14 +372,23 @@ int bus_verify_polkit_async( } #endif - r = sd_bus_query_sender_privilege(m, capability); + r = sd_bus_query_sender_privilege(call, capability); if (r < 0) return r; - if (r > 0) + else if (r > 0) return 1; #ifdef ENABLE_POLKIT - sender = sd_bus_message_get_sender(m); + if (sd_bus_get_current_message(call->bus) != call) + return -EINVAL; + + callback = sd_bus_get_current_handler(call->bus); + if (!callback) + return -EINVAL; + + userdata = sd_bus_get_current_userdata(call->bus); + + sender = sd_bus_message_get_sender(call); if (!sender) return -EBADMSG; @@ -392,7 +397,7 @@ int bus_verify_polkit_async( return r; r = sd_bus_message_new_method_call( - bus, + call->bus, &pk, "org.freedesktop.PolicyKit1", "/org/freedesktop/PolicyKit1/Authority", @@ -416,11 +421,11 @@ int bus_verify_polkit_async( if (!q) return -ENOMEM; - q->request = sd_bus_message_ref(m); + q->request = sd_bus_message_ref(call); q->callback = callback; q->userdata = userdata; - r = hashmap_put(*registry, m, q); + r = hashmap_put(*registry, call, q); if (r < 0) { async_polkit_query_free(q); return r; @@ -428,7 +433,7 @@ int bus_verify_polkit_async( q->registry = *registry; - r = sd_bus_call_async(bus, &q->slot, pk, async_polkit_callback, q, 0); + r = sd_bus_call_async(call->bus, &q->slot, pk, async_polkit_callback, q, 0); if (r < 0) { async_polkit_query_free(q); return r; @@ -440,7 +445,7 @@ int bus_verify_polkit_async( return -EACCES; } -void bus_verify_polkit_async_registry_free(sd_bus *bus, Hashmap *registry) { +void bus_verify_polkit_async_registry_free(Hashmap *registry) { #ifdef ENABLE_POLKIT AsyncPolkitQuery *q; diff --git a/src/libsystemd/sd-bus/bus-util.h b/src/libsystemd/sd-bus/bus-util.h index f760a1e80e..faf1775809 100644 --- a/src/libsystemd/sd-bus/bus-util.h +++ b/src/libsystemd/sd-bus/bus-util.h @@ -62,10 +62,10 @@ int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error); int bus_check_peercred(sd_bus *c); -int bus_verify_polkit(sd_bus *bus, sd_bus_message *m, int capability, const char *action, bool interactive, bool *_challenge, sd_bus_error *e); +int bus_verify_polkit(sd_bus_message *call, int capability, const char *action, bool interactive, bool *_challenge, sd_bus_error *e); -int bus_verify_polkit_async(sd_bus *bus, Hashmap **registry, sd_bus_message *m, int capability, const char *action, bool interactive, sd_bus_error *error, sd_bus_message_handler_t callback, void *userdata); -void bus_verify_polkit_async_registry_free(sd_bus *bus, Hashmap *registry); +int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, bool interactive, Hashmap **registry, sd_bus_error *error); +void bus_verify_polkit_async_registry_free(Hashmap *registry); int bus_open_system_systemd(sd_bus **_bus); int bus_open_user_systemd(sd_bus **_bus); diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c index 0fadd1699e..83233fd7e6 100644 --- a/src/libsystemd/sd-bus/sd-bus.c +++ b/src/libsystemd/sd-bus/sd-bus.c @@ -2102,7 +2102,11 @@ static int process_timeout(sd_bus *bus) { bus->current_message = m; bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = c->callback; + bus->current_userdata = slot->userdata; r = c->callback(bus, m, slot->userdata, &error_buffer); + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); bus->current_message = NULL; @@ -2194,7 +2198,11 @@ static int process_reply(sd_bus *bus, sd_bus_message *m) { } bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = c->callback; + bus->current_userdata = slot->userdata; r = c->callback(bus, m, slot->userdata, &error_buffer); + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); if (slot->floating) { @@ -2235,7 +2243,11 @@ static int process_filter(sd_bus *bus, sd_bus_message *m) { slot = container_of(l, sd_bus_slot, filter_callback); bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = l->callback; + bus->current_userdata = slot->userdata; r = l->callback(bus, m, slot->userdata, &error_buffer); + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); r = bus_maybe_reply_error(m, r, &error_buffer); @@ -2512,7 +2524,11 @@ static int process_closing(sd_bus *bus, sd_bus_message **ret) { bus->current_message = m; bus->current_slot = sd_bus_slot_ref(slot); + bus->current_handler = c->callback; + bus->current_userdata = slot->userdata; r = c->callback(bus, m, slot->userdata, &error_buffer); + bus->current_userdata = NULL; + bus->current_handler = NULL; bus->current_slot = sd_bus_slot_unref(slot); bus->current_message = NULL; @@ -3113,6 +3129,18 @@ _public_ sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus) { return bus->current_slot; } +_public_ sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus) { + assert_return(bus, NULL); + + return bus->current_handler; +} + +_public_ void* sd_bus_get_current_userdata(sd_bus *bus) { + assert_return(bus, NULL); + + return bus->current_userdata; +} + static int bus_default(int (*bus_open)(sd_bus **), sd_bus **default_bus, sd_bus **ret) { sd_bus *b = NULL; int r; diff --git a/src/locale/localed.c b/src/locale/localed.c index 087066786e..508a00079e 100644 --- a/src/locale/localed.c +++ b/src/locale/localed.c @@ -132,12 +132,12 @@ static void context_free_locale(Context *c) { free_and_replace(&c->locale[p], NULL); } -static void context_free(Context *c, sd_bus *bus) { +static void context_free(Context *c) { context_free_locale(c); context_free_x11(c); context_free_vconsole(c); - bus_verify_polkit_async_registry_free(bus, c->polkit_registry); + bus_verify_polkit_async_registry_free(c->polkit_registry); }; static void locale_simplify(Context *c) { @@ -877,9 +877,7 @@ static int method_set_locale(sd_bus *bus, sd_bus_message *m, void *userdata, sd_ } if (modified) { - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_ADMIN, - "org.freedesktop.locale1.set-locale", interactive, - error, method_set_locale, c); + r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.locale1.set-locale", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -955,9 +953,7 @@ static int method_set_vc_keyboard(sd_bus *bus, sd_bus_message *m, void *userdata (keymap_toggle && (!filename_is_safe(keymap_toggle) || !string_is_safe(keymap_toggle)))) return sd_bus_error_set_errnof(error, -EINVAL, "Received invalid keymap data"); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_ADMIN, - "org.freedesktop.locale1.set-keyboard", - interactive, error, method_set_vc_keyboard, c); + r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.locale1.set-keyboard", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -1027,9 +1023,7 @@ static int method_set_x11_keyboard(sd_bus *bus, sd_bus_message *m, void *userdat (options && !string_is_safe(options))) return sd_bus_error_set_errnof(error, -EINVAL, "Received invalid keyboard data"); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_ADMIN, - "org.freedesktop.locale1.set-keyboard", - interactive, error, method_set_x11_keyboard, c); + r = bus_verify_polkit_async(m, CAP_SYS_ADMIN, "org.freedesktop.locale1.set-keyboard", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -1161,7 +1155,7 @@ int main(int argc, char *argv[]) { } finish: - context_free(&context, bus); + context_free(&context); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; } diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c index bcfcba2d07..acef5119b1 100644 --- a/src/login/logind-dbus.c +++ b/src/login/logind-dbus.c @@ -1029,14 +1029,13 @@ static int method_set_user_linger(sd_bus *bus, sd_bus_message *message, void *us if (!pw) return errno ? -errno : -ENOENT; - r = bus_verify_polkit_async(bus, - &m->polkit_registry, - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.set-user-linger", - interactive, - error, - method_set_user_linger, m); + r = bus_verify_polkit_async( + message, + CAP_SYS_ADMIN, + "org.freedesktop.login1.set-user-linger", + interactive, + &m->polkit_registry, + error); if (r < 0) return r; if (r == 0) @@ -1202,14 +1201,13 @@ static int method_attach_device(sd_bus *bus, sd_bus_message *message, void *user if (!seat_name_is_valid(seat)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat); - r = bus_verify_polkit_async(bus, - &m->polkit_registry, - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.attach-device", - interactive, - error, - method_attach_device, m); + r = bus_verify_polkit_async( + message, + CAP_SYS_ADMIN, + "org.freedesktop.login1.attach-device", + interactive, + &m->polkit_registry, + error); if (r < 0) return r; if (r == 0) @@ -1234,14 +1232,13 @@ static int method_flush_devices(sd_bus *bus, sd_bus_message *message, void *user if (r < 0) return r; - r = bus_verify_polkit_async(bus, - &m->polkit_registry, - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.flush-devices", - interactive, - error, - method_flush_devices, m); + r = bus_verify_polkit_async( + message, + CAP_SYS_ADMIN, + "org.freedesktop.login1.flush-devices", + interactive, + &m->polkit_registry, + error); if (r < 0) return r; if (r == 0) @@ -1535,8 +1532,7 @@ static int method_do_shutdown_or_sleep( blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL); if (multiple_sessions) { - r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message, CAP_SYS_BOOT, - action_multiple_sessions, interactive, error, method, m); + r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, interactive, &m->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -1544,8 +1540,7 @@ static int method_do_shutdown_or_sleep( } if (blocked) { - r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message, CAP_SYS_BOOT, - action_ignore_inhibit, interactive, error, method, m); + r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, interactive, &m->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -1553,8 +1548,7 @@ static int method_do_shutdown_or_sleep( } if (!multiple_sessions && !blocked) { - r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message, CAP_SYS_BOOT, - action, interactive, error, method, m); + r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, interactive, &m->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -1691,7 +1685,7 @@ static int method_can_shutdown_or_sleep( blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL); if (multiple_sessions) { - r = bus_verify_polkit(m->bus, message, CAP_SYS_BOOT, action_multiple_sessions, false, &challenge, error); + r = bus_verify_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, false, &challenge, error); if (r < 0) return r; @@ -1704,7 +1698,7 @@ static int method_can_shutdown_or_sleep( } if (blocked) { - r = bus_verify_polkit(m->bus, message, CAP_SYS_BOOT, action_ignore_inhibit, false, &challenge, error); + r = bus_verify_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, false, &challenge, error); if (r < 0) return r; @@ -1720,7 +1714,7 @@ static int method_can_shutdown_or_sleep( /* If neither inhibit nor multiple sessions * apply then just check the normal policy */ - r = bus_verify_polkit(m->bus, message, CAP_SYS_BOOT, action, false, &challenge, error); + r = bus_verify_polkit(message, CAP_SYS_BOOT, action, false, &challenge, error); if (r < 0) return r; @@ -1840,7 +1834,7 @@ static int method_inhibit(sd_bus *bus, sd_bus_message *message, void *userdata, if (m->action_what & w) return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running"); - r = bus_verify_polkit_async(bus, &m->polkit_registry, message, CAP_SYS_BOOT, + r = bus_verify_polkit_async(message, CAP_SYS_BOOT, w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") : w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") : w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" : @@ -1848,7 +1842,7 @@ static int method_inhibit(sd_bus *bus, sd_bus_message *message, void *userdata, w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" : w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" : "org.freedesktop.login1.inhibit-handle-lid-switch", - false, error, method_inhibit, m); + false, &m->polkit_registry, error); if (r < 0) return r; if (r == 0) diff --git a/src/login/logind.c b/src/login/logind.c index 8ec8105357..006c56ae51 100644 --- a/src/login/logind.c +++ b/src/login/logind.c @@ -163,7 +163,7 @@ void manager_free(Manager *m) { if (m->udev) udev_unref(m->udev); - bus_verify_polkit_async_registry_free(m->bus, m->polkit_registry); + bus_verify_polkit_async_registry_free(m->polkit_registry); sd_bus_unref(m->bus); sd_event_unref(m->event); diff --git a/src/systemd/sd-bus.h b/src/systemd/sd-bus.h index c601093a85..1e23a93a60 100644 --- a/src/systemd/sd-bus.h +++ b/src/systemd/sd-bus.h @@ -148,8 +148,10 @@ int sd_bus_process(sd_bus *bus, sd_bus_message **r); int sd_bus_process_priority(sd_bus *bus, int64_t max_priority, sd_bus_message **r); int sd_bus_wait(sd_bus *bus, uint64_t timeout_usec); int sd_bus_flush(sd_bus *bus); -sd_bus_message* sd_bus_get_current_message(sd_bus *bus); sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus); +sd_bus_message* sd_bus_get_current_message(sd_bus *bus); +sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus); +void* sd_bus_get_current_userdata(sd_bus *bus); int sd_bus_attach_event(sd_bus *bus, sd_event *e, int priority); int sd_bus_detach_event(sd_bus *bus); @@ -175,6 +177,8 @@ void *sd_bus_slot_get_userdata(sd_bus_slot *slot); void *sd_bus_slot_set_userdata(sd_bus_slot *slot, void *userdata); sd_bus_message* sd_bus_slot_get_current_message(sd_bus_slot *slot); +sd_bus_message_handler_t sd_bus_slot_get_current_handler(sd_bus_slot *bus); +void *sd_bus_slot_get_current_userdata(sd_bus_slot *slot); /* Message object */ diff --git a/src/timedate/timedated.c b/src/timedate/timedated.c index f0371759a2..fa3f947eaa 100644 --- a/src/timedate/timedated.c +++ b/src/timedate/timedated.c @@ -52,11 +52,11 @@ typedef struct Context { Hashmap *polkit_registry; } Context; -static void context_free(Context *c, sd_bus *bus) { +static void context_free(Context *c) { assert(c); free(c->zone); - bus_verify_polkit_async_registry_free(bus, c->polkit_registry); + bus_verify_polkit_async_registry_free(c->polkit_registry); } static int context_read_data(Context *c) { @@ -395,7 +395,7 @@ static int method_set_timezone(sd_bus *bus, sd_bus_message *m, void *userdata, s if (streq_ptr(z, c->zone)) return sd_bus_reply_method_return(m, NULL); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-timezone", interactive, error, method_set_timezone, c); + r = bus_verify_polkit_async(m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-timezone", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -456,7 +456,7 @@ static int method_set_local_rtc(sd_bus *bus, sd_bus_message *m, void *userdata, if (lrtc == c->local_rtc) return sd_bus_reply_method_return(m, NULL); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-local-rtc", interactive, error, method_set_local_rtc, c); + r = bus_verify_polkit_async(m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-local-rtc", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -561,7 +561,7 @@ static int method_set_time(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bu } else timespec_store(&ts, (usec_t) utc); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-time", interactive, error, method_set_time, c); + r = bus_verify_polkit_async(m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-time", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -601,7 +601,7 @@ static int method_set_ntp(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus if ((bool)ntp == c->use_ntp) return sd_bus_reply_method_return(m, NULL); - r = bus_verify_polkit_async(bus, &c->polkit_registry, m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-ntp", interactive, error, method_set_ntp, c); + r = bus_verify_polkit_async(m, CAP_SYS_TIME, "org.freedesktop.timedate1.set-ntp", interactive, &c->polkit_registry, error); if (r < 0) return r; if (r == 0) @@ -727,7 +727,7 @@ int main(int argc, char *argv[]) { } finish: - context_free(&context, bus); + context_free(&context); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; } |