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 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"
31 #define BUS_MANAGER_INTERFACE_BEGIN \
32 " <interface name=\"org.freedesktop.systemd1.Manager\">\n"
34 #define BUS_MANAGER_INTERFACE_METHODS \
35 " <method name=\"GetUnit\">\n" \
36 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
37 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
39 " <method name=\"GetUnitByPID\">\n" \
40 " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
41 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
43 " <method name=\"LoadUnit\">\n" \
44 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
45 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
47 " <method name=\"StartUnit\">\n" \
48 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
49 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
50 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
52 " <method name=\"StartUnitReplace\">\n" \
53 " <arg name=\"old_unit\" type=\"s\" direction=\"in\"/>\n" \
54 " <arg name=\"new_unit\" type=\"s\" direction=\"in\"/>\n" \
55 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
56 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
58 " <method name=\"StopUnit\">\n" \
59 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
61 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
63 " <method name=\"ReloadUnit\">\n" \
64 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
65 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
66 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
68 " <method name=\"RestartUnit\">\n" \
69 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
70 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
71 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
73 " <method name=\"TryRestartUnit\">\n" \
74 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
75 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
76 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
78 " <method name=\"ReloadOrRestartUnit\">\n" \
79 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
80 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
81 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
83 " <method name=\"ReloadOrTryRestartUnit\">\n" \
84 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
85 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
86 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
88 " <method name=\"KillUnit\">\n" \
89 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
90 " <arg name=\"who\" type=\"s\" direction=\"in\"/>\n" \
91 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
92 " <arg name=\"signal\" type=\"i\" direction=\"in\"/>\n" \
94 " <method name=\"ResetFailedUnit\">\n" \
95 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
97 " <method name=\"GetJob\">\n" \
98 " <arg name=\"id\" type=\"u\" direction=\"in\"/>\n" \
99 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
101 " <method name=\"ClearJobs\"/>\n" \
102 " <method name=\"ResetFailed\"/>\n" \
103 " <method name=\"ListUnits\">\n" \
104 " <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
106 " <method name=\"ListJobs\">\n" \
107 " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
109 " <method name=\"Subscribe\"/>\n" \
110 " <method name=\"Unsubscribe\"/>\n" \
111 " <method name=\"Dump\"/>\n" \
112 " <method name=\"CreateSnapshot\">\n" \
113 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
114 " <arg name=\"cleanup\" type=\"b\" direction=\"in\"/>\n" \
115 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
117 " <method name=\"Reload\"/>\n" \
118 " <method name=\"Reexecute\"/>\n" \
119 " <method name=\"Exit\"/>\n" \
120 " <method name=\"Reboot\"/>\n" \
121 " <method name=\"PowerOff\"/>\n" \
122 " <method name=\"Halt\"/>\n" \
123 " <method name=\"KExec\"/>\n" \
124 " <method name=\"SetEnvironment\">\n" \
125 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
127 " <method name=\"UnsetEnvironment\">\n" \
128 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
131 #define BUS_MANAGER_INTERFACE_SIGNALS \
132 " <signal name=\"UnitNew\">\n" \
133 " <arg name=\"id\" type=\"s\"/>\n" \
134 " <arg name=\"unit\" type=\"o\"/>\n" \
136 " <signal name=\"UnitRemoved\">\n" \
137 " <arg name=\"id\" type=\"s\"/>\n" \
138 " <arg name=\"unit\" type=\"o\"/>\n" \
140 " <signal name=\"JobNew\">\n" \
141 " <arg name=\"id\" type=\"u\"/>\n" \
142 " <arg name=\"job\" type=\"o\"/>\n" \
144 " <signal name=\"JobRemoved\">\n" \
145 " <arg name=\"id\" type=\"u\"/>\n" \
146 " <arg name=\"job\" type=\"o\"/>\n" \
147 " <arg name=\"result\" type=\"s\"/>\n" \
150 #define BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL \
151 " <property name=\"Version\" type=\"s\" access=\"read\"/>\n" \
152 " <property name=\"Distribution\" type=\"s\" access=\"read\"/>\n" \
153 " <property name=\"Features\" type=\"s\" access=\"read\"/>\n" \
154 " <property name=\"Tainted\" type=\"s\" access=\"read\"/>\n" \
155 " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
156 " <property name=\"InitRDTimestamp\" type=\"t\" access=\"read\"/>\n" \
157 " <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
158 " <property name=\"FinishTimestamp\" type=\"t\" access=\"read\"/>\n" \
159 " <property name=\"LogLevel\" type=\"s\" access=\"readwrite\"/>\n" \
160 " <property name=\"LogTarget\" type=\"s\" access=\"readwrite\"/>\n" \
161 " <property name=\"NNames\" type=\"u\" access=\"read\"/>\n" \
162 " <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n" \
163 " <property name=\"NInstalledJobs\" type=\"u\" access=\"read\"/>\n" \
164 " <property name=\"NFailedJobs\" type=\"u\" access=\"read\"/>\n" \
165 " <property name=\"Progress\" type=\"d\" access=\"read\"/>\n" \
166 " <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
167 " <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
168 " <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
169 " <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
170 " <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
171 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
172 " <property name=\"MountAuto\" type=\"b\" access=\"read\"/>\n" \
173 " <property name=\"SwapAuto\" type=\"b\" access=\"read\"/>\n" \
174 " <property name=\"DefaultControllers\" type=\"as\" access=\"read\"/>\n" \
175 " <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
176 " <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n"
178 #ifdef HAVE_SYSV_COMPAT
179 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV \
180 " <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
181 " <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
182 " <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
184 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
187 #define BUS_MANAGER_INTERFACE_END \
190 #define BUS_MANAGER_INTERFACE \
191 BUS_MANAGER_INTERFACE_BEGIN \
192 BUS_MANAGER_INTERFACE_METHODS \
193 BUS_MANAGER_INTERFACE_SIGNALS \
194 BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL \
195 BUS_MANAGER_INTERFACE_PROPERTIES_SYSV \
196 BUS_MANAGER_INTERFACE_END
198 #define INTROSPECTION_BEGIN \
199 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
201 BUS_MANAGER_INTERFACE \
202 BUS_PROPERTIES_INTERFACE \
204 BUS_INTROSPECTABLE_INTERFACE
206 #define INTROSPECTION_END \
209 #define INTERFACES_LIST \
210 BUS_GENERIC_INTERFACES_LIST \
211 "org.freedesktop.systemd1.Manager\0"
213 const char bus_manager_interface[] _introspect_("Manager") = BUS_MANAGER_INTERFACE;
215 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
216 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_exec_output, exec_output, ExecOutput);
218 static int bus_manager_append_tainted(Manager *m, DBusMessageIter *i, const char *property, void *data) {
220 char buf[64] = "", *e = buf, *p = NULL;
226 if (dir_is_empty("/usr") > 0)
227 e = stpcpy(e, "usr-separate-fs");
229 if (readlink_malloc("/etc/mtab", &p) < 0) {
232 e = stpcpy(e, "etc-mtab-not-symlink");
238 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
244 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
251 t = log_target_to_string(log_get_target());
253 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
259 static int bus_manager_set_log_target(Manager *m, DBusMessageIter *i, const char *property) {
266 dbus_message_iter_get_basic(i, &t);
268 return log_set_target_from_string(t);
271 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
278 t = log_level_to_string(log_get_max_level());
280 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
286 static int bus_manager_set_log_level(Manager *m, DBusMessageIter *i, const char *property) {
293 dbus_message_iter_get_basic(i, &t);
295 return log_set_max_level_from_string(t);
298 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
305 u = hashmap_size(m->units);
307 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
313 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
320 u = hashmap_size(m->jobs);
322 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
328 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
335 if (dual_timestamp_is_set(&m->finish_timestamp))
338 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
340 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
346 static const char *message_get_sender_with_fallback(DBusMessage *m) {
351 if ((s = dbus_message_get_sender(m)))
354 /* When the message came in from a direct connection the
355 * message will have no sender. We fix that here. */
360 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
363 const BusProperty properties[] = {
364 { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
365 { "org.freedesktop.systemd1.Manager", "Distribution", bus_property_append_string, "s", DISTRIBUTION },
366 { "org.freedesktop.systemd1.Manager", "Features", bus_property_append_string, "s", SYSTEMD_FEATURES },
367 { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
368 { "org.freedesktop.systemd1.Manager", "Tainted", bus_manager_append_tainted, "s", m },
369 { "org.freedesktop.systemd1.Manager", "InitRDTimestamp", bus_property_append_uint64, "t", &m->initrd_timestamp.realtime },
370 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
371 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64, "t", &m->finish_timestamp.realtime },
372 { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL, bus_manager_set_log_level},
373 { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL, bus_manager_set_log_target},
374 { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
375 { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
376 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32, "u", &m->n_installed_jobs },
377 { "org.freedesktop.systemd1.Manager", "NFailedJobs", bus_property_append_uint32, "u", &m->n_failed_jobs },
378 { "org.freedesktop.systemd1.Manager", "Progress", bus_manager_append_progress, "d", NULL },
379 { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
380 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
381 { "org.freedesktop.systemd1.Manager", "ShowStatus", bus_property_append_bool, "b", &m->show_status },
382 { "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
383 { "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
384 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
385 { "org.freedesktop.systemd1.Manager", "MountAuto", bus_property_append_bool, "b", &m->mount_auto },
386 { "org.freedesktop.systemd1.Manager", "SwapAuto", bus_property_append_bool, "b", &m->swap_auto },
387 { "org.freedesktop.systemd1.Manager", "DefaultControllers", bus_property_append_strv, "as", m->default_controllers },
388 { "org.freedesktop.systemd1.Manager", "DefaultStandardOutput", bus_manager_append_exec_output, "s", &m->default_std_output },
389 { "org.freedesktop.systemd1.Manager", "DefaultStandardError", bus_manager_append_exec_output, "s", &m->default_std_error },
390 #ifdef HAVE_SYSV_COMPAT
391 { "org.freedesktop.systemd1.Manager", "SysVConsole", bus_property_append_bool, "b", &m->sysv_console },
392 { "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
393 { "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
395 { NULL, NULL, NULL, NULL, NULL }
400 DBusMessage *reply = NULL;
402 JobType job_type = _JOB_TYPE_INVALID;
403 bool reload_if_possible = false;
409 dbus_error_init(&error);
411 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
415 if (!dbus_message_get_args(
418 DBUS_TYPE_STRING, &name,
420 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
422 if (!(u = manager_get_unit(m, name))) {
423 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
424 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
427 if (!(reply = dbus_message_new_method_return(message)))
430 if (!(path = unit_dbus_path(u)))
433 if (!dbus_message_append_args(
435 DBUS_TYPE_OBJECT_PATH, &path,
438 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
442 if (!dbus_message_get_args(
445 DBUS_TYPE_UINT32, &pid,
447 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
449 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
450 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
451 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
454 if (!(reply = dbus_message_new_method_return(message)))
457 if (!(path = unit_dbus_path(u)))
460 if (!dbus_message_append_args(
462 DBUS_TYPE_OBJECT_PATH, &path,
465 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
469 if (!dbus_message_get_args(
472 DBUS_TYPE_STRING, &name,
474 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
476 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
477 return bus_send_error_reply(m, connection, message, &error, r);
479 if (!(reply = dbus_message_new_method_return(message)))
482 if (!(path = unit_dbus_path(u)))
485 if (!dbus_message_append_args(
487 DBUS_TYPE_OBJECT_PATH, &path,
491 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
492 job_type = JOB_START;
493 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
494 job_type = JOB_START;
495 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
497 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
498 job_type = JOB_RELOAD;
499 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
500 job_type = JOB_RESTART;
501 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
502 job_type = JOB_TRY_RESTART;
503 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
504 reload_if_possible = true;
505 job_type = JOB_RESTART;
506 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
507 reload_if_possible = true;
508 job_type = JOB_TRY_RESTART;
509 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
510 const char *name, *swho, *smode;
516 if (!dbus_message_get_args(
519 DBUS_TYPE_STRING, &name,
520 DBUS_TYPE_STRING, &swho,
521 DBUS_TYPE_STRING, &smode,
522 DBUS_TYPE_INT32, &signo,
524 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
526 if ((mode = kill_mode_from_string(smode)) < 0 ||
527 (who = kill_who_from_string(swho)) < 0 ||
530 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
532 if (!(u = manager_get_unit(m, name))) {
533 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
534 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
537 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
538 return bus_send_error_reply(m, connection, message, &error, r);
540 if (!(reply = dbus_message_new_method_return(message)))
543 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
547 if (!dbus_message_get_args(
550 DBUS_TYPE_UINT32, &id,
552 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
554 if (!(j = manager_get_job(m, id))) {
555 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
556 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
559 if (!(reply = dbus_message_new_method_return(message)))
562 if (!(path = job_dbus_path(j)))
565 if (!dbus_message_append_args(
567 DBUS_TYPE_OBJECT_PATH, &path,
571 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
573 manager_clear_jobs(m);
575 if (!(reply = dbus_message_new_method_return(message)))
578 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
580 manager_reset_failed(m);
582 if (!(reply = dbus_message_new_method_return(message)))
585 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
589 if (!dbus_message_get_args(
592 DBUS_TYPE_STRING, &name,
594 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
596 if (!(u = manager_get_unit(m, name))) {
597 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
598 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
601 unit_reset_failed(u);
603 if (!(reply = dbus_message_new_method_return(message)))
606 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
607 DBusMessageIter iter, sub;
612 if (!(reply = dbus_message_new_method_return(message)))
615 dbus_message_iter_init_append(reply, &iter);
617 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
620 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
621 char *u_path, *j_path;
622 const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
623 DBusMessageIter sub2;
630 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
633 description = unit_description(u);
634 load_state = unit_load_state_to_string(u->meta.load_state);
635 active_state = unit_active_state_to_string(unit_active_state(u));
636 sub_state = unit_sub_state_to_string(u);
638 f = unit_following(u);
639 following = f ? f->meta.id : "";
641 if (!(u_path = unit_dbus_path(u)))
645 job_id = (uint32_t) u->meta.job->id;
647 if (!(j_path = job_dbus_path(u->meta.job))) {
652 sjob_type = job_type_to_string(u->meta.job->type);
659 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
660 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
661 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
662 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
663 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
664 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
665 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
666 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
667 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
668 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
679 if (!dbus_message_iter_close_container(&sub, &sub2))
683 if (!dbus_message_iter_close_container(&iter, &sub))
686 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
687 DBusMessageIter iter, sub;
691 if (!(reply = dbus_message_new_method_return(message)))
694 dbus_message_iter_init_append(reply, &iter);
696 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
699 HASHMAP_FOREACH(j, m->jobs, i) {
700 char *u_path, *j_path;
701 const char *state, *type;
703 DBusMessageIter sub2;
705 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
708 id = (uint32_t) j->id;
709 state = job_state_to_string(j->state);
710 type = job_type_to_string(j->type);
712 if (!(j_path = job_dbus_path(j)))
715 if (!(u_path = unit_dbus_path(j->unit))) {
720 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
721 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
722 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
723 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
724 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
725 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
734 if (!dbus_message_iter_close_container(&sub, &sub2))
738 if (!dbus_message_iter_close_container(&iter, &sub))
741 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
745 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
746 if (!(s = set_new(string_hash_func, string_compare_func)))
749 if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
755 if (!(client = strdup(message_get_sender_with_fallback(message))))
758 if ((r = set_put(s, client)) < 0) {
760 return bus_send_error_reply(m, connection, message, NULL, r);
763 if (!(reply = dbus_message_new_method_return(message)))
766 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
769 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
770 dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
771 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
776 if (!(reply = dbus_message_new_method_return(message)))
779 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
784 if (!(reply = dbus_message_new_method_return(message)))
787 if (!(f = open_memstream(&dump, &size)))
790 manager_dump_units(m, f, NULL);
791 manager_dump_jobs(m, f, NULL);
801 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
807 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
812 if (!dbus_message_get_args(
815 DBUS_TYPE_STRING, &name,
816 DBUS_TYPE_BOOLEAN, &cleanup,
818 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
820 if (name && name[0] == 0)
823 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
824 return bus_send_error_reply(m, connection, message, &error, r);
826 if (!(reply = dbus_message_new_method_return(message)))
829 if (!(path = unit_dbus_path(UNIT(s))))
832 if (!dbus_message_append_args(
834 DBUS_TYPE_OBJECT_PATH, &path,
838 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
839 char *introspection = NULL;
847 if (!(reply = dbus_message_new_method_return(message)))
850 /* We roll our own introspection code here, instead of
851 * relying on bus_default_message_handler() because we
852 * need to generate our introspection string
855 if (!(f = open_memstream(&introspection, &size)))
858 fputs(INTROSPECTION_BEGIN, f);
860 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
866 if (!(p = bus_path_escape(k))) {
872 fprintf(f, "<node name=\"unit/%s\"/>", p);
876 HASHMAP_FOREACH(j, m->jobs, i)
877 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
879 fputs(INTROSPECTION_END, f);
892 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
899 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
901 assert(!m->queued_message);
903 /* Instead of sending the reply back right away, we
904 * just remember that we need to and then send it
905 * after the reload is finished. That way the caller
906 * knows when the reload finished. */
908 if (!(m->queued_message = dbus_message_new_method_return(message)))
911 m->queued_message_connection = connection;
912 m->exit_code = MANAGER_RELOAD;
914 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
916 if (!(reply = dbus_message_new_method_return(message)))
919 m->exit_code = MANAGER_REEXECUTE;
921 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
923 if (m->running_as == MANAGER_SYSTEM) {
924 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for user service managers.");
925 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
928 if (!(reply = dbus_message_new_method_return(message)))
931 m->exit_code = MANAGER_EXIT;
933 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
935 if (m->running_as != MANAGER_SYSTEM) {
936 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
937 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
940 if (!(reply = dbus_message_new_method_return(message)))
943 m->exit_code = MANAGER_REBOOT;
945 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
947 if (m->running_as != MANAGER_SYSTEM) {
948 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
949 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
952 if (!(reply = dbus_message_new_method_return(message)))
955 m->exit_code = MANAGER_POWEROFF;
957 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
959 if (m->running_as != MANAGER_SYSTEM) {
960 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
961 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
964 if (!(reply = dbus_message_new_method_return(message)))
967 m->exit_code = MANAGER_HALT;
969 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
971 if (m->running_as != MANAGER_SYSTEM) {
972 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
973 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
976 if (!(reply = dbus_message_new_method_return(message)))
979 m->exit_code = MANAGER_KEXEC;
981 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
982 char **l = NULL, **e = NULL;
984 if ((r = bus_parse_strv(message, &l)) < 0) {
988 return bus_send_error_reply(m, connection, message, NULL, r);
991 e = strv_env_merge(2, m->environment, l);
997 if (!(reply = dbus_message_new_method_return(message))) {
1002 strv_free(m->environment);
1005 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
1006 char **l = NULL, **e = NULL;
1008 if ((r = bus_parse_strv(message, &l)) < 0) {
1012 return bus_send_error_reply(m, connection, message, NULL, r);
1015 e = strv_env_delete(m->environment, 1, l);
1021 if (!(reply = dbus_message_new_method_return(message)))
1024 strv_free(m->environment);
1028 return bus_default_message_handler(m, connection, message, NULL, INTERFACES_LIST, properties);
1030 if (job_type != _JOB_TYPE_INVALID) {
1031 const char *name, *smode, *old_name = NULL;
1037 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
1038 b = dbus_message_get_args(
1041 DBUS_TYPE_STRING, &old_name,
1042 DBUS_TYPE_STRING, &name,
1043 DBUS_TYPE_STRING, &smode,
1046 b = dbus_message_get_args(
1049 DBUS_TYPE_STRING, &name,
1050 DBUS_TYPE_STRING, &smode,
1054 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1057 if (!(u = manager_get_unit(m, old_name)) ||
1059 u->meta.job->type != JOB_START) {
1060 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
1061 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
1065 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
1066 dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
1067 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1070 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1071 return bus_send_error_reply(m, connection, message, &error, r);
1073 if (reload_if_possible && unit_can_reload(u)) {
1074 if (job_type == JOB_RESTART)
1075 job_type = JOB_RELOAD_OR_START;
1076 else if (job_type == JOB_TRY_RESTART)
1077 job_type = JOB_RELOAD;
1080 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1081 (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1082 ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1083 (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1084 dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1085 return bus_send_error_reply(m, connection, message, &error, -EPERM);
1088 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1089 return bus_send_error_reply(m, connection, message, &error, r);
1091 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1094 j->bus = connection;
1096 if (!(reply = dbus_message_new_method_return(message)))
1099 if (!(path = job_dbus_path(j)))
1102 if (!dbus_message_append_args(
1104 DBUS_TYPE_OBJECT_PATH, &path,
1112 if (!dbus_connection_send(connection, reply, NULL))
1115 dbus_message_unref(reply);
1118 return DBUS_HANDLER_RESULT_HANDLED;
1124 dbus_message_unref(reply);
1126 dbus_error_free(&error);
1128 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1131 const DBusObjectPathVTable bus_manager_vtable = {
1132 .message_function = bus_manager_message_handler