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")) {
301 if (!dbus_message_get_args(
304 DBUS_TYPE_UINT32, &pid,
306 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
308 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
309 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
310 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
313 if (!(reply = dbus_message_new_method_return(message)))
316 if (!(path = unit_dbus_path(u)))
319 if (!dbus_message_append_args(
321 DBUS_TYPE_OBJECT_PATH, &path,
324 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
328 if (!dbus_message_get_args(
331 DBUS_TYPE_STRING, &name,
333 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
335 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
336 return bus_send_error_reply(m, connection, message, &error, r);
338 if (!(reply = dbus_message_new_method_return(message)))
341 if (!(path = unit_dbus_path(u)))
344 if (!dbus_message_append_args(
346 DBUS_TYPE_OBJECT_PATH, &path,
350 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
351 job_type = JOB_START;
352 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
354 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
355 job_type = JOB_RELOAD;
356 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
357 job_type = JOB_RESTART;
358 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
359 job_type = JOB_TRY_RESTART;
360 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
361 reload_if_possible = true;
362 job_type = JOB_RESTART;
363 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
364 reload_if_possible = true;
365 job_type = JOB_TRY_RESTART;
366 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
370 if (!dbus_message_get_args(
373 DBUS_TYPE_UINT32, &id,
375 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
377 if (!(j = manager_get_job(m, id))) {
378 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
379 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
382 if (!(reply = dbus_message_new_method_return(message)))
385 if (!(path = job_dbus_path(j)))
388 if (!dbus_message_append_args(
390 DBUS_TYPE_OBJECT_PATH, &path,
394 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
396 manager_clear_jobs(m);
398 if (!(reply = dbus_message_new_method_return(message)))
401 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenance")) {
403 manager_reset_maintenance(m);
405 if (!(reply = dbus_message_new_method_return(message)))
408 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetMaintenanceUnit")) {
412 if (!dbus_message_get_args(
415 DBUS_TYPE_STRING, &name,
417 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
419 if (!(u = manager_get_unit(m, name))) {
420 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
421 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
424 unit_reset_maintenance(u);
426 if (!(reply = dbus_message_new_method_return(message)))
429 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
430 DBusMessageIter iter, sub;
435 if (!(reply = dbus_message_new_method_return(message)))
438 dbus_message_iter_init_append(reply, &iter);
440 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
443 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
444 char *u_path, *j_path;
445 const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
446 DBusMessageIter sub2;
453 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
456 description = unit_description(u);
457 load_state = unit_load_state_to_string(u->meta.load_state);
458 active_state = unit_active_state_to_string(unit_active_state(u));
459 sub_state = unit_sub_state_to_string(u);
461 f = unit_following(u);
462 following = f ? f->meta.id : "";
464 if (!(u_path = unit_dbus_path(u)))
468 job_id = (uint32_t) u->meta.job->id;
470 if (!(j_path = job_dbus_path(u->meta.job))) {
475 sjob_type = job_type_to_string(u->meta.job->type);
482 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
483 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
484 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
485 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
486 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
487 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
488 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
489 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
490 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
491 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
502 if (!dbus_message_iter_close_container(&sub, &sub2))
506 if (!dbus_message_iter_close_container(&iter, &sub))
509 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
510 DBusMessageIter iter, sub;
514 if (!(reply = dbus_message_new_method_return(message)))
517 dbus_message_iter_init_append(reply, &iter);
519 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
522 HASHMAP_FOREACH(j, m->jobs, i) {
523 char *u_path, *j_path;
524 const char *state, *type;
526 DBusMessageIter sub2;
528 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
531 id = (uint32_t) j->id;
532 state = job_state_to_string(j->state);
533 type = job_type_to_string(j->type);
535 if (!(j_path = job_dbus_path(j)))
538 if (!(u_path = unit_dbus_path(j->unit))) {
543 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
544 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
545 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
546 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
547 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
548 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
557 if (!dbus_message_iter_close_container(&sub, &sub2))
561 if (!dbus_message_iter_close_container(&iter, &sub))
564 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
568 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
569 if (!(s = set_new(string_hash_func, string_compare_func)))
572 if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
578 if (!(client = strdup(message_get_sender_with_fallback(message))))
581 if ((r = set_put(s, client)) < 0) {
583 return bus_send_error_reply(m, connection, message, NULL, r);
586 if (!(reply = dbus_message_new_method_return(message)))
589 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
592 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
593 dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
594 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
599 if (!(reply = dbus_message_new_method_return(message)))
602 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
607 if (!(reply = dbus_message_new_method_return(message)))
610 if (!(f = open_memstream(&dump, &size)))
613 manager_dump_units(m, f, NULL);
614 manager_dump_jobs(m, f, NULL);
624 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
630 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
635 if (!dbus_message_get_args(
638 DBUS_TYPE_STRING, &name,
639 DBUS_TYPE_BOOLEAN, &cleanup,
641 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
643 if (name && name[0] == 0)
646 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
647 return bus_send_error_reply(m, connection, message, &error, r);
649 if (!(reply = dbus_message_new_method_return(message)))
652 if (!(path = unit_dbus_path(UNIT(s))))
655 if (!dbus_message_append_args(
657 DBUS_TYPE_OBJECT_PATH, &path,
661 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
662 char *introspection = NULL;
670 if (!(reply = dbus_message_new_method_return(message)))
673 /* We roll our own introspection code here, instead of
674 * relying on bus_default_message_handler() because we
675 * need to generate our introspection string
678 if (!(f = open_memstream(&introspection, &size)))
681 fputs(INTROSPECTION_BEGIN, f);
683 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
689 if (!(p = bus_path_escape(k))) {
695 fprintf(f, "<node name=\"unit/%s\"/>", p);
699 HASHMAP_FOREACH(j, m->jobs, i)
700 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
702 fputs(INTROSPECTION_END, f);
715 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
722 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
724 assert(!m->queued_message);
726 /* Instead of sending the reply back right away, we
727 * just remember that we need to and then send it
728 * after the reload is finished. That way the caller
729 * knows when the reload finished. */
731 if (!(m->queued_message = dbus_message_new_method_return(message)))
734 m->queued_message_connection = connection;
735 m->exit_code = MANAGER_RELOAD;
737 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
739 if (!(reply = dbus_message_new_method_return(message)))
742 m->exit_code = MANAGER_REEXECUTE;
744 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
746 if (m->running_as == MANAGER_SYSTEM) {
747 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for session managers.");
748 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
751 if (!(reply = dbus_message_new_method_return(message)))
754 m->exit_code = MANAGER_EXIT;
756 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
757 char **l = NULL, **e = NULL;
759 if ((r = bus_parse_strv(message, &l)) < 0) {
763 return bus_send_error_reply(m, connection, message, NULL, r);
766 e = strv_env_merge(2, m->environment, l);
772 if (!(reply = dbus_message_new_method_return(message))) {
777 strv_free(m->environment);
780 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
781 char **l = NULL, **e = NULL;
783 if ((r = bus_parse_strv(message, &l)) < 0) {
787 return bus_send_error_reply(m, connection, message, NULL, r);
790 e = strv_env_delete(m->environment, 1, l);
796 if (!(reply = dbus_message_new_method_return(message)))
799 strv_free(m->environment);
803 return bus_default_message_handler(m, connection, message, NULL, properties);
805 if (job_type != _JOB_TYPE_INVALID) {
806 const char *name, *smode;
811 if (!dbus_message_get_args(
814 DBUS_TYPE_STRING, &name,
815 DBUS_TYPE_STRING, &smode,
817 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
819 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
820 dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
821 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
824 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
825 return bus_send_error_reply(m, connection, message, &error, r);
827 if (reload_if_possible && unit_can_reload(u)) {
828 if (job_type == JOB_RESTART)
829 job_type = JOB_RELOAD_OR_START;
830 else if (job_type == JOB_TRY_RESTART)
831 job_type = JOB_RELOAD;
834 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
835 (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
836 ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
837 (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
838 dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
839 return bus_send_error_reply(m, connection, message, &error, -EPERM);
842 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
843 return bus_send_error_reply(m, connection, message, &error, r);
845 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
850 if (!(reply = dbus_message_new_method_return(message)))
853 if (!(path = job_dbus_path(j)))
856 if (!dbus_message_append_args(
858 DBUS_TYPE_OBJECT_PATH, &path,
866 if (!dbus_connection_send(connection, reply, NULL))
869 dbus_message_unref(reply);
872 return DBUS_HANDLER_RESULT_HANDLED;
878 dbus_message_unref(reply);
880 dbus_error_free(&error);
882 return DBUS_HANDLER_RESULT_NEED_MEMORY;
885 const DBusObjectPathVTable bus_manager_vtable = {
886 .message_function = bus_manager_message_handler