1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include "dbus-manager.h"
28 #include "bus-errors.h"
30 #define BUS_MANAGER_INTERFACE \
31 " <interface name=\"org.freedesktop.systemd1.Manager\">\n" \
32 " <method name=\"GetUnit\">\n" \
33 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
34 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
36 " <method name=\"LoadUnit\">\n" \
37 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
38 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
40 " <method name=\"StartUnit\">\n" \
41 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
42 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
43 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
45 " <method name=\"StopUnit\">\n" \
46 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
47 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
48 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
50 " <method name=\"ReloadUnit\">\n" \
51 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
52 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
53 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
55 " <method name=\"RestartUnit\">\n" \
56 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
57 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
58 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
60 " <method name=\"TryRestartUnit\">\n" \
61 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
62 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
63 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
65 " <method name=\"ReloadOrRestartUnit\">\n" \
66 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
67 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
68 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
70 " <method name=\"ReloadOrTryRestartUnit\">\n" \
71 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
72 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
73 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
75 " <method name=\"GetJob\">\n" \
76 " <arg name=\"id\" type=\"u\" direction=\"in\"/>\n" \
77 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
79 " <method name=\"ClearJobs\"/>\n" \
80 " <method name=\"ListUnits\">\n" \
81 " <arg name=\"units\" type=\"a(sssssouso)\" direction=\"out\"/>\n" \
83 " <method name=\"ListJobs\">\n" \
84 " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
86 " <method name=\"Subscribe\"/>\n" \
87 " <method name=\"Unsubscribe\"/>\n" \
88 " <method name=\"Dump\"/>\n" \
89 " <method name=\"CreateSnapshot\">\n" \
90 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
91 " <arg nane=\"cleanup\" type=\"b\" direction=\"in\"/>\n" \
92 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
94 " <method name=\"Reload\"/>\n" \
95 " <method name=\"Reexecute\"/>\n" \
96 " <method name=\"Exit\"/>\n" \
97 " <method name=\"SetEnvironment\">\n" \
98 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
100 " <method name=\"UnsetEnvironment\">\n" \
101 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
103 " <signal name=\"UnitNew\">\n" \
104 " <arg name=\"id\" type=\"s\"/>\n" \
105 " <arg name=\"unit\" type=\"o\"/>\n" \
107 " <signal name=\"UnitRemoved\">\n" \
108 " <arg name=\"id\" type=\"s\"/>\n" \
109 " <arg name=\"unit\" type=\"o\"/>\n" \
111 " <signal name=\"JobNew\">\n" \
112 " <arg name=\"id\" type=\"u\"/>\n" \
113 " <arg name=\"job\" type=\"o\"/>\n" \
115 " <signal name=\"JobRemoved\">\n" \
116 " <arg name=\"id\" type=\"u\"/>\n" \
117 " <arg name=\"job\" type=\"o\"/>\n" \
118 " <arg name=\"success\" type=\"b\"/>\n" \
120 " <property name=\"Version\" type=\"s\" access=\"read\"/>\n" \
121 " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
122 " <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
123 " <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n" \
124 " <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
125 " <property name=\"NNames\" type=\"u\" access=\"read\"/>\n" \
126 " <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n" \
127 " <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
128 " <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
129 " <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
130 " <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
131 " <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
132 " <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n" \
133 " <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
134 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
137 #define INTROSPECTION_BEGIN \
138 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
140 BUS_MANAGER_INTERFACE \
141 BUS_PROPERTIES_INTERFACE \
142 BUS_INTROSPECTABLE_INTERFACE
144 #define INTROSPECTION_END \
147 const char bus_manager_interface[] = BUS_MANAGER_INTERFACE;
149 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
151 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
158 t = log_target_to_string(log_get_target());
160 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
166 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
173 t = log_level_to_string(log_get_max_level());
175 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
181 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
188 u = hashmap_size(m->units);
190 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
196 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
203 u = hashmap_size(m->jobs);
205 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
211 static const char *message_get_sender_with_fallback(DBusMessage *m) {
216 if ((s = dbus_message_get_sender(m)))
219 /* When the message came in from a direct connection the
220 * message will have no sender. We fix that here. */
225 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
228 const BusProperty properties[] = {
229 { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
230 { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
231 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
232 { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
233 { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
234 { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
235 { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
236 { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
237 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
238 { "org.freedesktop.systemd1.Manager", "ShowStatus", bus_property_append_bool, "b", &m->show_status },
239 { "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
240 { "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
241 { "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
242 { "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
243 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
244 { NULL, NULL, NULL, NULL, NULL }
249 DBusMessage *reply = NULL;
251 JobType job_type = _JOB_TYPE_INVALID;
252 bool reload_if_possible = false;
258 dbus_error_init(&error);
260 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
264 if (!dbus_message_get_args(
267 DBUS_TYPE_STRING, &name,
269 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
271 if (!(u = manager_get_unit(m, name))) {
272 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
273 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
276 if (!(reply = dbus_message_new_method_return(message)))
279 if (!(path = unit_dbus_path(u)))
282 if (!dbus_message_append_args(
284 DBUS_TYPE_OBJECT_PATH, &path,
288 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
292 if (!dbus_message_get_args(
295 DBUS_TYPE_STRING, &name,
297 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
299 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
300 return bus_send_error_reply(m, connection, message, &error, r);
302 if (!(reply = dbus_message_new_method_return(message)))
305 if (!(path = unit_dbus_path(u)))
308 if (!dbus_message_append_args(
310 DBUS_TYPE_OBJECT_PATH, &path,
314 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
315 job_type = JOB_START;
316 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
318 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
319 job_type = JOB_RELOAD;
320 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
321 job_type = JOB_RESTART;
322 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
323 job_type = JOB_TRY_RESTART;
324 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
325 reload_if_possible = true;
326 job_type = JOB_RESTART;
327 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
328 reload_if_possible = true;
329 job_type = JOB_TRY_RESTART;
330 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
334 if (!dbus_message_get_args(
337 DBUS_TYPE_UINT32, &id,
339 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
341 if (!(j = manager_get_job(m, id))) {
342 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
343 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
346 if (!(reply = dbus_message_new_method_return(message)))
349 if (!(path = job_dbus_path(j)))
352 if (!dbus_message_append_args(
354 DBUS_TYPE_OBJECT_PATH, &path,
358 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
360 manager_clear_jobs(m);
362 if (!(reply = dbus_message_new_method_return(message)))
365 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
366 DBusMessageIter iter, sub;
371 if (!(reply = dbus_message_new_method_return(message)))
374 dbus_message_iter_init_append(reply, &iter);
376 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sssssouso)", &sub))
379 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
380 char *u_path, *j_path;
381 const char *description, *load_state, *active_state, *sub_state, *sjob_type;
382 DBusMessageIter sub2;
388 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
391 description = unit_description(u);
392 load_state = unit_load_state_to_string(u->meta.load_state);
393 active_state = unit_active_state_to_string(unit_active_state(u));
394 sub_state = unit_sub_state_to_string(u);
396 if (!(u_path = unit_dbus_path(u)))
400 job_id = (uint32_t) u->meta.job->id;
402 if (!(j_path = job_dbus_path(u->meta.job))) {
407 sjob_type = job_type_to_string(u->meta.job->type);
414 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
415 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
416 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
417 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
418 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
419 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
420 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
421 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
422 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
433 if (!dbus_message_iter_close_container(&sub, &sub2))
437 if (!dbus_message_iter_close_container(&iter, &sub))
440 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
441 DBusMessageIter iter, sub;
445 if (!(reply = dbus_message_new_method_return(message)))
448 dbus_message_iter_init_append(reply, &iter);
450 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
453 HASHMAP_FOREACH(j, m->jobs, i) {
454 char *u_path, *j_path;
455 const char *state, *type;
457 DBusMessageIter sub2;
459 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
462 id = (uint32_t) j->id;
463 state = job_state_to_string(j->state);
464 type = job_type_to_string(j->type);
466 if (!(j_path = job_dbus_path(j)))
469 if (!(u_path = unit_dbus_path(j->unit))) {
474 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
475 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
476 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
477 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
478 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
479 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
488 if (!dbus_message_iter_close_container(&sub, &sub2))
492 if (!dbus_message_iter_close_container(&iter, &sub))
495 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
499 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
500 if (!(s = set_new(string_hash_func, string_compare_func)))
503 if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
509 if (!(client = strdup(message_get_sender_with_fallback(message))))
512 if ((r = set_put(s, client)) < 0) {
514 return bus_send_error_reply(m, connection, message, NULL, r);
517 if (!(reply = dbus_message_new_method_return(message)))
520 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
523 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
524 dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
525 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
530 if (!(reply = dbus_message_new_method_return(message)))
533 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
538 if (!(reply = dbus_message_new_method_return(message)))
541 if (!(f = open_memstream(&dump, &size)))
544 manager_dump_units(m, f, NULL);
545 manager_dump_jobs(m, f, NULL);
555 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
561 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
566 if (!dbus_message_get_args(
569 DBUS_TYPE_STRING, &name,
570 DBUS_TYPE_BOOLEAN, &cleanup,
572 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
574 if (name && name[0] == 0)
577 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
578 return bus_send_error_reply(m, connection, message, &error, r);
580 if (!(reply = dbus_message_new_method_return(message)))
583 if (!(path = unit_dbus_path(UNIT(s))))
586 if (!dbus_message_append_args(
588 DBUS_TYPE_OBJECT_PATH, &path,
592 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
593 char *introspection = NULL;
601 if (!(reply = dbus_message_new_method_return(message)))
604 /* We roll our own introspection code here, instead of
605 * relying on bus_default_message_handler() because we
606 * need to generate our introspection string
609 if (!(f = open_memstream(&introspection, &size)))
612 fputs(INTROSPECTION_BEGIN, f);
614 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
620 if (!(p = bus_path_escape(k))) {
626 fprintf(f, "<node name=\"unit/%s\"/>", p);
630 HASHMAP_FOREACH(j, m->jobs, i)
631 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
633 fputs(INTROSPECTION_END, f);
646 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
653 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
655 assert(!m->queued_message);
657 /* Instead of sending the reply back right away, we
658 * just remember that we need to and then send it
659 * after the reload is finished. That way the caller
660 * knows when the reload finished. */
662 if (!(m->queued_message = dbus_message_new_method_return(message)))
665 m->queued_message_connection = connection;
666 m->exit_code = MANAGER_RELOAD;
668 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
670 if (!(reply = dbus_message_new_method_return(message)))
673 m->exit_code = MANAGER_REEXECUTE;
675 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
677 if (m->running_as == MANAGER_SYSTEM) {
678 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for session managers.");
679 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
682 if (!(reply = dbus_message_new_method_return(message)))
685 m->exit_code = MANAGER_EXIT;
687 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
688 char **l = NULL, **e = NULL;
690 if ((r = bus_parse_strv(message, &l)) < 0) {
694 return bus_send_error_reply(m, connection, message, NULL, r);
697 e = strv_env_merge(2, m->environment, l);
703 if (!(reply = dbus_message_new_method_return(message))) {
708 strv_free(m->environment);
711 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
712 char **l = NULL, **e = NULL;
714 if ((r = bus_parse_strv(message, &l)) < 0) {
718 return bus_send_error_reply(m, connection, message, NULL, r);
721 e = strv_env_delete(m->environment, 1, l);
727 if (!(reply = dbus_message_new_method_return(message)))
730 strv_free(m->environment);
734 return bus_default_message_handler(m, connection, message, NULL, properties);
737 if (job_type != _JOB_TYPE_INVALID) {
738 const char *name, *smode;
743 if (!dbus_message_get_args(
746 DBUS_TYPE_STRING, &name,
747 DBUS_TYPE_STRING, &smode,
749 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
751 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
752 dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
753 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
756 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
757 return bus_send_error_reply(m, connection, message, &error, r);
759 if (reload_if_possible && unit_can_reload(u)) {
760 if (job_type == JOB_RESTART)
761 job_type = JOB_RELOAD_OR_START;
762 else if (job_type == JOB_TRY_RESTART)
763 job_type = JOB_RELOAD;
766 if (job_type == JOB_START && u->meta.only_by_dependency) {
767 dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Unit may be activated by dependency only.");
768 return bus_send_error_reply(m, connection, message, &error, -EPERM);
771 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
772 return bus_send_error_reply(m, connection, message, &error, r);
774 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
779 if (!(reply = dbus_message_new_method_return(message)))
782 if (!(path = job_dbus_path(j)))
785 if (!dbus_message_append_args(
787 DBUS_TYPE_OBJECT_PATH, &path,
795 if (!dbus_connection_send(connection, reply, NULL))
798 dbus_message_unref(reply);
801 return DBUS_HANDLER_RESULT_HANDLED;
807 dbus_message_unref(reply);
809 dbus_error_free(&error);
811 return DBUS_HANDLER_RESULT_NEED_MEMORY;
814 const DBusObjectPathVTable bus_manager_vtable = {
815 .message_function = bus_manager_message_handler