1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include "selinux-access.h"
25 #include "cgroup-util.h"
27 #include "path-util.h"
29 #include "dbus-unit.h"
30 #include "dbus-manager.h"
31 #include "bus-errors.h"
32 #include "dbus-client-track.h"
34 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState);
36 static int property_get_names(
39 const char *interface,
41 sd_bus_message *reply,
43 sd_bus_error *error) {
54 r = sd_bus_message_open_container(reply, 'a', "s");
58 SET_FOREACH(t, u->names, i) {
59 r = sd_bus_message_append(reply, "s", t);
64 return sd_bus_message_close_container(reply);
67 static int property_get_following(
70 const char *interface,
72 sd_bus_message *reply,
74 sd_bus_error *error) {
76 Unit *u = userdata, *f;
82 f = unit_following(u);
83 return sd_bus_message_append(reply, "s", f ? f->id : "");
86 static int property_get_dependencies(
89 const char *interface,
91 sd_bus_message *reply,
93 sd_bus_error *error) {
95 Set *s = *(Set**) userdata;
103 r = sd_bus_message_open_container(reply, 'a', "s");
107 SET_FOREACH(u, s, j) {
108 r = sd_bus_message_append(reply, "s", u->id);
113 return sd_bus_message_close_container(reply);
116 static int property_get_description(
119 const char *interface,
120 const char *property,
121 sd_bus_message *reply,
123 sd_bus_error *error) {
131 return sd_bus_message_append(reply, "s", unit_description(u));
134 static int property_get_active_state(
137 const char *interface,
138 const char *property,
139 sd_bus_message *reply,
141 sd_bus_error *error) {
149 return sd_bus_message_append(reply, "s", unit_active_state_to_string(unit_active_state(u)));
152 static int property_get_sub_state(
155 const char *interface,
156 const char *property,
157 sd_bus_message *reply,
159 sd_bus_error *error) {
167 return sd_bus_message_append(reply, "s", unit_sub_state_to_string(u));
170 static int property_get_unit_file_state(
173 const char *interface,
174 const char *property,
175 sd_bus_message *reply,
177 sd_bus_error *error) {
185 return sd_bus_message_append(reply, "s", unit_file_state_to_string(unit_get_unit_file_state(u)));
188 static int property_get_can_start(
191 const char *interface,
192 const char *property,
193 sd_bus_message *reply,
195 sd_bus_error *error) {
203 return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_start);
206 static int property_get_can_stop(
209 const char *interface,
210 const char *property,
211 sd_bus_message *reply,
213 sd_bus_error *error) {
221 /* On the lower levels we assume that every unit we can start
222 * we can also stop */
224 return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_stop);
227 static int property_get_can_reload(
230 const char *interface,
231 const char *property,
232 sd_bus_message *reply,
234 sd_bus_error *error) {
242 return sd_bus_message_append(reply, "b", unit_can_reload(u));
245 static int property_get_can_isolate(
248 const char *interface,
249 const char *property,
250 sd_bus_message *reply,
252 sd_bus_error *error) {
260 return sd_bus_message_append(reply, "b", unit_can_isolate(u) && !u->refuse_manual_start);
263 static int property_get_job(
266 const char *interface,
267 const char *property,
268 sd_bus_message *reply,
270 sd_bus_error *error) {
272 _cleanup_free_ char *p = NULL;
280 return sd_bus_message_append(reply, "(uo)", 0, "/");
282 p = job_dbus_path(u->job);
286 return sd_bus_message_append(reply, "(uo)", u->job->id, p);
289 static int property_get_need_daemon_reload(
292 const char *interface,
293 const char *property,
294 sd_bus_message *reply,
296 sd_bus_error *error) {
304 return sd_bus_message_append(reply, "b", unit_need_daemon_reload(u));
307 static int property_get_conditions(
310 const char *interface,
311 const char *property,
312 sd_bus_message *reply,
314 sd_bus_error *error) {
324 r = sd_bus_message_open_container(reply, 'a', "(sbbsi)");
328 LIST_FOREACH(conditions, c, u->conditions) {
329 r = sd_bus_message_append(reply, "sbbsi", condition_type_to_string(c->type), c->trigger, c->negate, c->parameter, c->state);
335 return sd_bus_message_close_container(reply);
338 static int property_get_load_error(
341 const char *interface,
342 const char *property,
343 sd_bus_message *reply,
345 sd_bus_error *error) {
347 _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL;
354 if (u->load_error != 0)
355 sd_bus_error_set_errno(&e, u->load_error);
357 return sd_bus_message_append(reply, "(ss)", e.name, e.message);
360 int bus_unit_method_start_generic(sd_bus *bus, sd_bus_message *message, Unit *u, JobType job_type, bool reload_if_possible, sd_bus_error *error) {
368 assert(job_type >= 0 && job_type < _JOB_TYPE_MAX);
370 r = sd_bus_message_read(message, "s", &smode);
374 mode = job_mode_from_string(smode);
376 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode);
378 return bus_unit_queue_job(bus, message, u, job_type, mode, reload_if_possible, error);
381 static int method_start(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
382 return bus_unit_method_start_generic(bus, message, userdata, JOB_START, false, error);
385 static int method_stop(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
386 return bus_unit_method_start_generic(bus, message, userdata, JOB_STOP, false, error);
389 static int method_reload(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
390 return bus_unit_method_start_generic(bus, message, userdata, JOB_RELOAD, false, error);
393 static int method_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
394 return bus_unit_method_start_generic(bus, message, userdata, JOB_RESTART, false, error);
397 static int method_try_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
398 return bus_unit_method_start_generic(bus, message, userdata, JOB_TRY_RESTART, false, error);
401 static int method_reload_or_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
402 return bus_unit_method_start_generic(bus, message, userdata, JOB_RESTART, true, error);
405 static int method_reload_or_try_restart(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
406 return bus_unit_method_start_generic(bus, message, userdata, JOB_TRY_RESTART, true, error);
409 int bus_unit_method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
420 r = sd_bus_message_read(message, "si", &swho, &signo);
427 who = kill_who_from_string(swho);
429 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho);
432 if (signo <= 0 || signo >= _NSIG)
433 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range.");
435 r = selinux_unit_access_check(u, bus, message, "stop", error);
439 r = unit_kill(u, who, signo, error);
443 return sd_bus_reply_method_return(message, NULL);
446 int bus_unit_method_reset_failed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
454 r = selinux_unit_access_check(u, bus, message, "reload", error);
458 unit_reset_failed(u);
460 return sd_bus_reply_method_return(message, NULL);
463 int bus_unit_method_set_properties(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
471 r = sd_bus_message_read(message, "b", &runtime);
475 r = selinux_unit_access_check(u, bus, message, "start", error);
479 r = sd_bus_message_enter_container(message, 'a', "(sv)");
483 r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error);
487 r = sd_bus_message_exit_container(message);
491 return sd_bus_reply_method_return(message, NULL);
494 const sd_bus_vtable bus_unit_vtable[] = {
495 SD_BUS_VTABLE_START(0),
497 SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), 0),
498 SD_BUS_PROPERTY("Names", "as", property_get_names, 0, 0),
499 SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0),
500 SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES]), 0),
501 SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES_OVERRIDABLE]), 0),
502 SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE]), 0),
503 SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OVERRIDABLE]), 0),
504 SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTS]), 0),
505 SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BINDS_TO]), 0),
506 SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PART_OF]), 0),
507 SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), 0),
508 SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY_OVERRIDABLE]), 0),
509 SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTED_BY]), 0),
510 SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BOUND_BY]), 0),
511 SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), 0),
512 SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTS]), 0),
513 SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), 0),
514 SD_BUS_PROPERTY("Before", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BEFORE]), 0),
515 SD_BUS_PROPERTY("After", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_AFTER]), 0),
516 SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_ON_FAILURE]), 0),
517 SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERS]), 0),
518 SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), 0),
519 SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), 0),
520 SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), 0),
521 SD_BUS_PROPERTY("RequiresMountsFor", "as", NULL, offsetof(Unit, requires_mounts_for), 0),
522 SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), 0),
523 SD_BUS_PROPERTY("Description", "s", property_get_description, 0, 0),
524 SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), 0),
525 SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
526 SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
527 SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), 0),
528 SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), 0),
529 SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), 0),
530 SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0),
531 BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
532 BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
533 BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
534 BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
535 SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, 0),
536 SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, 0),
537 SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, 0),
538 SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, 0),
539 SD_BUS_PROPERTY("Job", "(uo)", property_get_job, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
540 SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), 0),
541 SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), 0),
542 SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), 0),
543 SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), 0),
544 SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), 0),
545 SD_BUS_PROPERTY("OnFailureIsolate", "b", bus_property_get_bool, offsetof(Unit, on_failure_isolate), 0),
546 SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), 0),
547 SD_BUS_PROPERTY("IgnoreOnSnapshot", "b", bus_property_get_bool, offsetof(Unit, ignore_on_snapshot), 0),
548 SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, 0),
549 SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), 0),
550 SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
551 BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
552 SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, 0, 0),
553 SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, 0),
554 SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), 0),
556 SD_BUS_METHOD("Start", "s", "o", method_start, 0),
557 SD_BUS_METHOD("Stop", "s", "o", method_stop, 0),
558 SD_BUS_METHOD("Reload", "s", "o", method_reload, 0),
559 SD_BUS_METHOD("Restart", "s", "o", method_restart, 0),
560 SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, 0),
561 SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, 0),
562 SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, 0),
563 SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, 0),
564 SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, 0),
565 SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, 0),
570 static int property_get_slice(
573 const char *interface,
574 const char *property,
575 sd_bus_message *reply,
577 sd_bus_error *error) {
585 return sd_bus_message_append(reply, "s", unit_slice_name(u));
588 const sd_bus_vtable bus_unit_cgroup_vtable[] = {
589 SD_BUS_VTABLE_START(0),
590 SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0),
591 SD_BUS_PROPERTY("ControlGroup", "s", NULL, offsetof(Unit, cgroup_path), 0),
595 static int send_new_signal(sd_bus *bus, const char *destination, void *userdata) {
596 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
597 _cleanup_free_ char *p = NULL;
604 p = unit_dbus_path(u);
608 r = sd_bus_message_new_signal(
610 "/org/freedesktop/systemd1",
611 "org.freedesktop.systemd1.Manager",
617 r = sd_bus_message_append(m, "so", u->id, p);
621 return sd_bus_send_to(bus, m, destination, NULL);
624 static int send_changed_signal(sd_bus *bus, const char *destination, void *userdata) {
625 _cleanup_free_ char *p = NULL;
632 p = unit_dbus_path(u);
636 /* Send a properties changed signal. First for the specific
637 * type, then for the generic unit. The clients may rely on
638 * this order to get atomic behavior if needed. */
640 if (UNIT_VTABLE(u)->bus_changing_properties) {
642 r = sd_bus_emit_properties_changed_strv(
644 UNIT_VTABLE(u)->bus_interface,
645 (char**) UNIT_VTABLE(u)->bus_changing_properties);
650 return sd_bus_emit_properties_changed(
652 "org.freedesktop.systemd1.Unit",
655 "InactiveExitTimestamp",
656 "ActiveEnterTimestamp",
657 "ActiveExitTimestamp",
658 "InactiveEnterTimestamp",
661 "ConditionTimestamp",
665 void bus_unit_send_change_signal(Unit *u) {
669 if (u->in_dbus_queue) {
670 LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u);
671 u->in_dbus_queue = false;
677 r = bus_manager_foreach_client(u->manager, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u);
679 log_debug("Failed to send unit change signal for %s: %s", u->id, strerror(-r));
681 u->sent_dbus_new_signal = true;
684 static int send_removed_signal(sd_bus *bus, const char *destination, void *userdata) {
685 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
686 _cleanup_free_ char *p = NULL;
693 p = unit_dbus_path(u);
697 r = sd_bus_message_new_signal(
699 "/org/freedesktop/systemd1",
700 "org.freedesktop.systemd1.Manager",
706 r = sd_bus_message_append(m, "so", u->id, p);
710 return sd_bus_send_to(bus, m, destination, NULL);
713 void bus_unit_send_removed_signal(Unit *u) {
717 if (!u->sent_dbus_new_signal)
718 bus_unit_send_change_signal(u);
723 r = bus_manager_foreach_client(u->manager, send_removed_signal, u);
725 log_debug("Failed to send unit remove signal for %s: %s", u->id, strerror(-r));
728 int bus_unit_queue_job(
730 sd_bus_message *message,
734 bool reload_if_possible,
735 sd_bus_error *error) {
737 _cleanup_free_ char *path = NULL;
744 assert(type >= 0 && type < _JOB_TYPE_MAX);
745 assert(mode >= 0 && mode < _JOB_MODE_MAX);
747 if (reload_if_possible && unit_can_reload(u)) {
748 if (type == JOB_RESTART)
749 type = JOB_RELOAD_OR_START;
750 else if (type == JOB_TRY_RESTART)
754 r = selinux_unit_access_check(
756 (type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" :
757 type == JOB_STOP ? "stop" : "reload", error);
761 if (type == JOB_STOP &&
762 (u->load_state == UNIT_NOT_FOUND || u->load_state == UNIT_ERROR) &&
763 unit_active_state(u) == UNIT_INACTIVE)
764 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
766 if ((type == JOB_START && u->refuse_manual_start) ||
767 (type == JOB_STOP && u->refuse_manual_stop) ||
768 ((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)))
769 return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id);
771 r = manager_add_job(u->manager, type, u, mode, true, error, &j);
775 r = bus_client_track(&j->subscribed, bus, sd_bus_message_get_sender(message));
779 path = job_dbus_path(j);
783 return sd_bus_reply_method_return(message, "o", path);
786 static int bus_unit_set_transient_property(
789 sd_bus_message *message,
790 UnitSetPropertiesMode mode,
791 sd_bus_error *error) {
799 if (streq(name, "Description")) {
802 r = sd_bus_message_read(message, "s", &d);
806 if (mode != UNIT_CHECK) {
807 r = unit_set_description(u, d);
811 unit_write_drop_in_format(u, mode, name, "[Unit]\nDescription=%s\n", d);
816 } else if (streq(name, "Slice") && unit_get_cgroup_context(u)) {
819 r = sd_bus_message_read(message, "s", &s);
823 if (!unit_name_is_valid(s, false) || !endswith(s, ".slice"))
824 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid slice name %s", s);
827 if (mode != UNIT_CHECK) {
828 unit_ref_unset(&u->slice);
829 unit_remove_drop_in(u, mode, name);
834 r = manager_load_unit(u->manager, s, NULL, error, &slice);
838 if (slice->type != UNIT_SLICE)
841 if (mode != UNIT_CHECK) {
842 unit_ref_set(&u->slice, slice);
843 unit_write_drop_in_private_format(u, mode, name, "Slice=%s\n", s);
849 } else if (streq(name, "Requires") ||
850 streq(name, "RequiresOverridable") ||
851 streq(name, "Requisite") ||
852 streq(name, "RequisiteOverridable") ||
853 streq(name, "Wants") ||
854 streq(name, "BindsTo") ||
855 streq(name, "Conflicts") ||
856 streq(name, "Before") ||
857 streq(name, "After") ||
858 streq(name, "OnFailure") ||
859 streq(name, "PropagatesReloadTo") ||
860 streq(name, "ReloadPropagatedFrom") ||
861 streq(name, "PartOf")) {
866 d = unit_dependency_from_string(name);
870 r = sd_bus_message_enter_container(message, 'a', "s");
874 while ((r = sd_bus_message_read(message, "s", &other)) > 0) {
875 if (!unit_name_is_valid(other, false))
876 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other);
878 if (mode != UNIT_CHECK) {
879 _cleanup_free_ char *label = NULL;
881 r = unit_add_dependency_by_name(u, d, other, NULL, true);
885 label = strjoin(name, "-", other, NULL);
889 unit_write_drop_in_format(u, mode, label, "[Unit]\n%s=%s\n", name, other);
896 r = sd_bus_message_exit_container(message);
906 int bus_unit_set_properties(
908 sd_bus_message *message,
909 UnitSetPropertiesMode mode,
911 sd_bus_error *error) {
913 bool for_real = false;
921 mode &= UNIT_RUNTIME;
923 /* We iterate through the array twice. First run we just check
924 * if all passed data is valid, second run actually applies
925 * it. This is to implement transaction-like behaviour without
926 * actually providing full transactions. */
928 r = sd_bus_message_enter_container(message, 'a', "(sv)");
935 r = sd_bus_message_enter_container(message, 'r', "sv");
939 if (for_real || mode == UNIT_CHECK)
942 /* Reached EOF. Let's try again, and this time for realz... */
943 r = sd_bus_message_rewind(message, false);
951 r = sd_bus_message_read(message, "s", &name);
955 if (!UNIT_VTABLE(u)->bus_set_property)
956 return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties.");
958 r = sd_bus_message_enter_container(message, 'v', NULL);
962 r = UNIT_VTABLE(u)->bus_set_property(u, name, message, for_real ? mode : UNIT_CHECK, error);
963 if (r == 0 && u->transient && u->load_state == UNIT_STUB)
964 r = bus_unit_set_transient_property(u, name, message, for_real ? mode : UNIT_CHECK, error);
968 return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name);
970 r = sd_bus_message_exit_container(message);
974 r = sd_bus_message_exit_container(message);
981 r = sd_bus_message_exit_container(message);
985 if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties)
986 UNIT_VTABLE(u)->bus_commit_properties(u);