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=\"GetUnitByPID\">\n" \
37 " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
38 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
40 " <method name=\"LoadUnit\">\n" \
41 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
42 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
44 " <method name=\"StartUnit\">\n" \
45 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
46 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
47 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
49 " <method name=\"StopUnit\">\n" \
50 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
51 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
52 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
54 " <method name=\"ReloadUnit\">\n" \
55 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
56 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
57 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
59 " <method name=\"RestartUnit\">\n" \
60 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
61 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
62 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
64 " <method name=\"TryRestartUnit\">\n" \
65 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
66 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
67 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
69 " <method name=\"ReloadOrRestartUnit\">\n" \
70 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
71 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
72 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
74 " <method name=\"ReloadOrTryRestartUnit\">\n" \
75 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
76 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
77 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
79 " <method name=\"ResetMaintenanceUnit\">\n" \
80 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
82 " <method name=\"GetJob\">\n" \
83 " <arg name=\"id\" type=\"u\" direction=\"in\"/>\n" \
84 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
86 " <method name=\"ClearJobs\"/>\n" \
87 " <method name=\"ResetMaintenance\"/>\n" \
88 " <method name=\"ListUnits\">\n" \
89 " <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
91 " <method name=\"ListJobs\">\n" \
92 " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
94 " <method name=\"Subscribe\"/>\n" \
95 " <method name=\"Unsubscribe\"/>\n" \
96 " <method name=\"Dump\"/>\n" \
97 " <method name=\"CreateSnapshot\">\n" \
98 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
99 " <arg nane=\"cleanup\" type=\"b\" direction=\"in\"/>\n" \
100 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
102 " <method name=\"Reload\"/>\n" \
103 " <method name=\"Reexecute\"/>\n" \
104 " <method name=\"Exit\"/>\n" \
105 " <method name=\"SetEnvironment\">\n" \
106 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
108 " <method name=\"UnsetEnvironment\">\n" \
109 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
111 " <signal name=\"UnitNew\">\n" \
112 " <arg name=\"id\" type=\"s\"/>\n" \
113 " <arg name=\"unit\" type=\"o\"/>\n" \
115 " <signal name=\"UnitRemoved\">\n" \
116 " <arg name=\"id\" type=\"s\"/>\n" \
117 " <arg name=\"unit\" type=\"o\"/>\n" \
119 " <signal name=\"JobNew\">\n" \
120 " <arg name=\"id\" type=\"u\"/>\n" \
121 " <arg name=\"job\" type=\"o\"/>\n" \
123 " <signal name=\"JobRemoved\">\n" \
124 " <arg name=\"id\" type=\"u\"/>\n" \
125 " <arg name=\"job\" type=\"o\"/>\n" \
126 " <arg name=\"success\" type=\"b\"/>\n" \
128 " <property name=\"Version\" type=\"s\" access=\"read\"/>\n" \
129 " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
130 " <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
131 " <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n" \
132 " <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
133 " <property name=\"NNames\" type=\"u\" access=\"read\"/>\n" \
134 " <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n" \
135 " <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
136 " <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
137 " <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
138 " <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
139 " <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
140 " <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
141 " <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n" \
142 " <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
143 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
146 #define INTROSPECTION_BEGIN \
147 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
149 BUS_MANAGER_INTERFACE \
150 BUS_PROPERTIES_INTERFACE \
151 BUS_INTROSPECTABLE_INTERFACE
153 #define INTROSPECTION_END \
156 const char bus_manager_interface[] = BUS_MANAGER_INTERFACE;
158 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
160 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
167 t = log_target_to_string(log_get_target());
169 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
175 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
182 t = log_level_to_string(log_get_max_level());
184 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
190 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
197 u = hashmap_size(m->units);
199 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
205 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
212 u = hashmap_size(m->jobs);
214 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
220 static const char *message_get_sender_with_fallback(DBusMessage *m) {
225 if ((s = dbus_message_get_sender(m)))
228 /* When the message came in from a direct connection the
229 * message will have no sender. We fix that here. */
234 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
237 const BusProperty properties[] = {
238 { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
239 { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
240 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
241 { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
242 { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
243 { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
244 { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
245 { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
246 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
247 { "org.freedesktop.systemd1.Manager", "ShowStatus", bus_property_append_bool, "b", &m->show_status },
248 { "org.freedesktop.systemd1.Manager", "SysVConsole", bus_property_append_bool, "b", &m->sysv_console },
249 { "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
250 { "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
251 { "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
252 { "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
253 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
254 { NULL, NULL, NULL, NULL, NULL }
259 DBusMessage *reply = NULL;
261 JobType job_type = _JOB_TYPE_INVALID;
262 bool reload_if_possible = false;
268 dbus_error_init(&error);
270 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
274 if (!dbus_message_get_args(
277 DBUS_TYPE_STRING, &name,
279 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
281 if (!(u = manager_get_unit(m, name))) {
282 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
283 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
286 if (!(reply = dbus_message_new_method_return(message)))
289 if (!(path = unit_dbus_path(u)))
292 if (!dbus_message_append_args(
294 DBUS_TYPE_OBJECT_PATH, &path,
297 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
302 if (!dbus_message_get_args(
305 DBUS_TYPE_UINT32, &pid,
307 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
309 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
310 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
311 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
314 if (!(reply = dbus_message_new_method_return(message)))
317 if (!(path = unit_dbus_path(u)))
320 if (!dbus_message_append_args(
322 DBUS_TYPE_OBJECT_PATH, &path,
325 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
329 if (!dbus_message_get_args(
332 DBUS_TYPE_STRING, &name,
334 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
336 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
337 return bus_send_error_reply(m, connection, message, &error, r);
339 if (!(reply = dbus_message_new_method_return(message)))
342 if (!(path = unit_dbus_path(u)))
345 if (!dbus_message_append_args(
347 DBUS_TYPE_OBJECT_PATH, &path,
351 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
352 job_type = JOB_START;
353 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
355 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
356 job_type = JOB_RELOAD;
357 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
358 job_type = JOB_RESTART;
359 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
360 job_type = JOB_TRY_RESTART;
361 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
362 reload_if_possible = true;
363 job_type = JOB_RESTART;
364 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
365 reload_if_possible = true;
366 job_type = JOB_TRY_RESTART;
367 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
371 if (!dbus_message_get_args(
374 DBUS_TYPE_UINT32, &id,
376 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
378 if (!(j = manager_get_job(m, id))) {
379 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
380 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
383 if (!(reply = dbus_message_new_method_return(message)))
386 if (!(path = job_dbus_path(j)))
389 if (!dbus_message_append_args(
391 DBUS_TYPE_OBJECT_PATH, &path,
395 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
397 manager_clear_jobs(m);
399 if (!(reply = dbus_message_new_method_return(message)))
402 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenance")) {
404 manager_reset_maintenance(m);
406 if (!(reply = dbus_message_new_method_return(message)))
409 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenanceUnit")) {
413 if (!dbus_message_get_args(
416 DBUS_TYPE_STRING, &name,
418 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
420 if (!(u = manager_get_unit(m, name))) {
421 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
422 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
425 unit_reset_maintenance(u);
427 if (!(reply = dbus_message_new_method_return(message)))
430 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
431 DBusMessageIter iter, sub;
436 if (!(reply = dbus_message_new_method_return(message)))
439 dbus_message_iter_init_append(reply, &iter);
441 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
444 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
445 char *u_path, *j_path;
446 const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
447 DBusMessageIter sub2;
454 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
457 description = unit_description(u);
458 load_state = unit_load_state_to_string(u->meta.load_state);
459 active_state = unit_active_state_to_string(unit_active_state(u));
460 sub_state = unit_sub_state_to_string(u);
462 f = unit_following(u);
463 following = f ? f->meta.id : "";
465 if (!(u_path = unit_dbus_path(u)))
469 job_id = (uint32_t) u->meta.job->id;
471 if (!(j_path = job_dbus_path(u->meta.job))) {
476 sjob_type = job_type_to_string(u->meta.job->type);
483 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
484 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
485 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
486 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
487 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
488 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
489 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
490 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
491 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
492 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
503 if (!dbus_message_iter_close_container(&sub, &sub2))
507 if (!dbus_message_iter_close_container(&iter, &sub))
510 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
511 DBusMessageIter iter, sub;
515 if (!(reply = dbus_message_new_method_return(message)))
518 dbus_message_iter_init_append(reply, &iter);
520 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
523 HASHMAP_FOREACH(j, m->jobs, i) {
524 char *u_path, *j_path;
525 const char *state, *type;
527 DBusMessageIter sub2;
529 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
532 id = (uint32_t) j->id;
533 state = job_state_to_string(j->state);
534 type = job_type_to_string(j->type);
536 if (!(j_path = job_dbus_path(j)))
539 if (!(u_path = unit_dbus_path(j->unit))) {
544 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
545 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
546 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
547 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
548 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
549 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
558 if (!dbus_message_iter_close_container(&sub, &sub2))
562 if (!dbus_message_iter_close_container(&iter, &sub))
565 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
569 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
570 if (!(s = set_new(string_hash_func, string_compare_func)))
573 if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
579 if (!(client = strdup(message_get_sender_with_fallback(message))))
582 if ((r = set_put(s, client)) < 0) {
584 return bus_send_error_reply(m, connection, message, NULL, r);
587 if (!(reply = dbus_message_new_method_return(message)))
590 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
593 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
594 dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
595 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
600 if (!(reply = dbus_message_new_method_return(message)))
603 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
608 if (!(reply = dbus_message_new_method_return(message)))
611 if (!(f = open_memstream(&dump, &size)))
614 manager_dump_units(m, f, NULL);
615 manager_dump_jobs(m, f, NULL);
625 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
631 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
636 if (!dbus_message_get_args(
639 DBUS_TYPE_STRING, &name,
640 DBUS_TYPE_BOOLEAN, &cleanup,
642 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
644 if (name && name[0] == 0)
647 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
648 return bus_send_error_reply(m, connection, message, &error, r);
650 if (!(reply = dbus_message_new_method_return(message)))
653 if (!(path = unit_dbus_path(UNIT(s))))
656 if (!dbus_message_append_args(
658 DBUS_TYPE_OBJECT_PATH, &path,
662 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
663 char *introspection = NULL;
671 if (!(reply = dbus_message_new_method_return(message)))
674 /* We roll our own introspection code here, instead of
675 * relying on bus_default_message_handler() because we
676 * need to generate our introspection string
679 if (!(f = open_memstream(&introspection, &size)))
682 fputs(INTROSPECTION_BEGIN, f);
684 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
690 if (!(p = bus_path_escape(k))) {
696 fprintf(f, "<node name=\"unit/%s\"/>", p);
700 HASHMAP_FOREACH(j, m->jobs, i)
701 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
703 fputs(INTROSPECTION_END, f);
716 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
723 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
725 assert(!m->queued_message);
727 /* Instead of sending the reply back right away, we
728 * just remember that we need to and then send it
729 * after the reload is finished. That way the caller
730 * knows when the reload finished. */
732 if (!(m->queued_message = dbus_message_new_method_return(message)))
735 m->queued_message_connection = connection;
736 m->exit_code = MANAGER_RELOAD;
738 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
740 if (!(reply = dbus_message_new_method_return(message)))
743 m->exit_code = MANAGER_REEXECUTE;
745 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
747 if (m->running_as == MANAGER_SYSTEM) {
748 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for session managers.");
749 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
752 if (!(reply = dbus_message_new_method_return(message)))
755 m->exit_code = MANAGER_EXIT;
757 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
758 char **l = NULL, **e = NULL;
760 if ((r = bus_parse_strv(message, &l)) < 0) {
764 return bus_send_error_reply(m, connection, message, NULL, r);
767 e = strv_env_merge(2, m->environment, l);
773 if (!(reply = dbus_message_new_method_return(message))) {
778 strv_free(m->environment);
781 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
782 char **l = NULL, **e = NULL;
784 if ((r = bus_parse_strv(message, &l)) < 0) {
788 return bus_send_error_reply(m, connection, message, NULL, r);
791 e = strv_env_delete(m->environment, 1, l);
797 if (!(reply = dbus_message_new_method_return(message)))
800 strv_free(m->environment);
804 return bus_default_message_handler(m, connection, message, NULL, properties);
806 if (job_type != _JOB_TYPE_INVALID) {
807 const char *name, *smode;
812 if (!dbus_message_get_args(
815 DBUS_TYPE_STRING, &name,
816 DBUS_TYPE_STRING, &smode,
818 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
820 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
821 dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
822 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
825 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
826 return bus_send_error_reply(m, connection, message, &error, r);
828 if (reload_if_possible && unit_can_reload(u)) {
829 if (job_type == JOB_RESTART)
830 job_type = JOB_RELOAD_OR_START;
831 else if (job_type == JOB_TRY_RESTART)
832 job_type = JOB_RELOAD;
835 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
836 (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
837 ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
838 (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
839 dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
840 return bus_send_error_reply(m, connection, message, &error, -EPERM);
843 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
844 return bus_send_error_reply(m, connection, message, &error, r);
846 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
851 if (!(reply = dbus_message_new_method_return(message)))
854 if (!(path = job_dbus_path(j)))
857 if (!dbus_message_append_args(
859 DBUS_TYPE_OBJECT_PATH, &path,
867 if (!dbus_connection_send(connection, reply, NULL))
870 dbus_message_unref(reply);
873 return DBUS_HANDLER_RESULT_HANDLED;
879 dbus_message_unref(reply);
881 dbus_error_free(&error);
883 return DBUS_HANDLER_RESULT_NEED_MEMORY;
886 const DBusObjectPathVTable bus_manager_vtable = {
887 .message_function = bus_manager_message_handler