]> git.ipfire.org Git - thirdparty/systemd.git/blob - src/dbus-manager.c
projects / thirdparty / systemd.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
exec: introduce global defaults for the standard output of services
[thirdparty/systemd.git] / src / dbus-manager.c
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3 /***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
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.
12
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.
17
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/>.
20 ***/
21
22 #include <errno.h>
23
24 #include "dbus.h"
25 #include "log.h"
26 #include "dbus-manager.h"
27 #include "strv.h"
28 #include "bus-errors.h"
29
30 #define BUS_MANAGER_INTERFACE_BEGIN \
31 " <interface name=\"org.freedesktop.systemd1.Manager\">\n"
32
33 #define BUS_MANAGER_INTERFACE_METHODS \
34 " <method name=\"GetUnit\">\n" \
35 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
36 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
37 " </method>\n" \
38 " <method name=\"GetUnitByPID\">\n" \
39 " <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n" \
40 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
41 " </method>\n" \
42 " <method name=\"LoadUnit\">\n" \
43 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
44 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
45 " </method>\n" \
46 " <method name=\"StartUnit\">\n" \
47 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
48 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
49 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
50 " </method>\n" \
51 " <method name=\"StartUnitReplace\">\n" \
52 " <arg name=\"old_unit\" type=\"s\" direction=\"in\"/>\n" \
53 " <arg name=\"new_unit\" type=\"s\" direction=\"in\"/>\n" \
54 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
55 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
56 " </method>\n" \
57 " <method name=\"StopUnit\">\n" \
58 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
59 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
61 " </method>\n" \
62 " <method name=\"ReloadUnit\">\n" \
63 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
64 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
65 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
66 " </method>\n" \
67 " <method name=\"RestartUnit\">\n" \
68 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
69 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
70 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
71 " </method>\n" \
72 " <method name=\"TryRestartUnit\">\n" \
73 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
74 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
75 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
76 " </method>\n" \
77 " <method name=\"ReloadOrRestartUnit\">\n" \
78 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
79 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
80 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
81 " </method>\n" \
82 " <method name=\"ReloadOrTryRestartUnit\">\n" \
83 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
84 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
85 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
86 " </method>\n" \
87 " <method name=\"KillUnit\">\n" \
88 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
89 " <arg name=\"who\" type=\"s\" direction=\"in\"/>\n" \
90 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
91 " <arg name=\"signal\" type=\"i\" direction=\"in\"/>\n" \
92 " </method>\n" \
93 " <method name=\"ResetFailedUnit\">\n" \
94 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
95 " </method>\n" \
96 " <method name=\"GetJob\">\n" \
97 " <arg name=\"id\" type=\"u\" direction=\"in\"/>\n" \
98 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
99 " </method>\n" \
100 " <method name=\"ClearJobs\"/>\n" \
101 " <method name=\"ResetFailed\"/>\n" \
102 " <method name=\"ListUnits\">\n" \
103 " <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
104 " </method>\n" \
105 " <method name=\"ListJobs\">\n" \
106 " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
107 " </method>\n" \
108 " <method name=\"Subscribe\"/>\n" \
109 " <method name=\"Unsubscribe\"/>\n" \
110 " <method name=\"Dump\"/>\n" \
111 " <method name=\"CreateSnapshot\">\n" \
112 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
113 " <arg name=\"cleanup\" type=\"b\" direction=\"in\"/>\n" \
114 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
115 " </method>\n" \
116 " <method name=\"Reload\"/>\n" \
117 " <method name=\"Reexecute\"/>\n" \
118 " <method name=\"Exit\"/>\n" \
119 " <method name=\"Reboot\"/>\n" \
120 " <method name=\"PowerOff\"/>\n" \
121 " <method name=\"Halt\"/>\n" \
122 " <method name=\"KExec\"/>\n" \
123 " <method name=\"SetEnvironment\">\n" \
124 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
125 " </method>\n" \
126 " <method name=\"UnsetEnvironment\">\n" \
127 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
128 " </method>\n"
129
130 #define BUS_MANAGER_INTERFACE_SIGNALS \
131 " <signal name=\"UnitNew\">\n" \
132 " <arg name=\"id\" type=\"s\"/>\n" \
133 " <arg name=\"unit\" type=\"o\"/>\n" \
134 " </signal>\n" \
135 " <signal name=\"UnitRemoved\">\n" \
136 " <arg name=\"id\" type=\"s\"/>\n" \
137 " <arg name=\"unit\" type=\"o\"/>\n" \
138 " </signal>\n" \
139 " <signal name=\"JobNew\">\n" \
140 " <arg name=\"id\" type=\"u\"/>\n" \
141 " <arg name=\"job\" type=\"o\"/>\n" \
142 " </signal>\n" \
143 " <signal name=\"JobRemoved\">\n" \
144 " <arg name=\"id\" type=\"u\"/>\n" \
145 " <arg name=\"job\" type=\"o\"/>\n" \
146 " <arg name=\"success\" type=\"b\"/>\n" \
147 " </signal>"
148
149
150 #define BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL \
151 " <property name=\"Version\" type=\"s\" access=\"read\"/>\n" \
152 " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
153 " <property name=\"InitRDTimestamp\" type=\"t\" access=\"read\"/>\n" \
154 " <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
155 " <property name=\"FinishTimestamp\" type=\"t\" access=\"read\"/>\n" \
156 " <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n" \
157 " <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
158 " <property name=\"NNames\" type=\"u\" access=\"read\"/>\n" \
159 " <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n" \
160 " <property name=\"NInstalledJobs\" type=\"u\" access=\"read\"/>\n" \
161 " <property name=\"NFailedJobs\" type=\"u\" access=\"read\"/>\n" \
162 " <property name=\"Progress\" type=\"d\" access=\"read\"/>\n" \
163 " <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
164 " <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
165 " <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
166 " <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
167 " <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
168 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
169 " <property name=\"MountAuto\" type=\"b\" access=\"read\"/>\n" \
170 " <property name=\"SwapAuto\" type=\"b\" access=\"read\"/>\n" \
171 " <property name=\"DefaultControllers\" type=\"as\" access=\"read\"/>\n" \
172 " <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
173 " <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n"
174
175 #ifdef HAVE_SYSV_COMPAT
176 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV \
177 " <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
178 " <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
179 " <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
180 #else
181 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
182 #endif
183
184 #define BUS_MANAGER_INTERFACE_END \
185 " </interface>\n"
186
187 #define BUS_MANAGER_INTERFACE \
188 BUS_MANAGER_INTERFACE_BEGIN \
189 BUS_MANAGER_INTERFACE_METHODS \
190 BUS_MANAGER_INTERFACE_SIGNALS \
191 BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL \
192 BUS_MANAGER_INTERFACE_PROPERTIES_SYSV \
193 BUS_MANAGER_INTERFACE_END
194
195 #define INTROSPECTION_BEGIN \
196 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
197 "<node>\n" \
198 BUS_MANAGER_INTERFACE \
199 BUS_PROPERTIES_INTERFACE \
200 BUS_PEER_INTERFACE \
201 BUS_INTROSPECTABLE_INTERFACE
202
203 #define INTROSPECTION_END \
204 "</node>\n"
205
206 const char bus_manager_interface[] _introspect_("Manager") = BUS_MANAGER_INTERFACE;
207
208 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
209 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_exec_output, exec_output, ExecOutput);
210
211 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
212 const char *t;
213
214 assert(m);
215 assert(i);
216 assert(property);
217
218 t = log_target_to_string(log_get_target());
219
220 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
221 return -ENOMEM;
222
223 return 0;
224 }
225
226 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
227 const char *t;
228
229 assert(m);
230 assert(i);
231 assert(property);
232
233 t = log_level_to_string(log_get_max_level());
234
235 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
236 return -ENOMEM;
237
238 return 0;
239 }
240
241 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
242 uint32_t u;
243
244 assert(m);
245 assert(i);
246 assert(property);
247
248 u = hashmap_size(m->units);
249
250 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
251 return -ENOMEM;
252
253 return 0;
254 }
255
256 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
257 uint32_t u;
258
259 assert(m);
260 assert(i);
261 assert(property);
262
263 u = hashmap_size(m->jobs);
264
265 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
266 return -ENOMEM;
267
268 return 0;
269 }
270
271 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
272 double d;
273
274 assert(m);
275 assert(i);
276 assert(property);
277
278 if (dual_timestamp_is_set(&m->finish_timestamp))
279 d = 1.0;
280 else
281 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
282
283 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
284 return -ENOMEM;
285
286 return 0;
287 }
288
289 static const char *message_get_sender_with_fallback(DBusMessage *m) {
290 const char *s;
291
292 assert(m);
293
294 if ((s = dbus_message_get_sender(m)))
295 return s;
296
297 /* When the message came in from a direct connection the
298 * message will have no sender. We fix that here. */
299
300 return ":no-sender";
301 }
302
303 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
304 Manager *m = data;
305
306 const BusProperty properties[] = {
307 { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
308 { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
309 { "org.freedesktop.systemd1.Manager", "InitRDTimestamp", bus_property_append_uint64, "t", &m->initrd_timestamp.realtime },
310 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
311 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64, "t", &m->finish_timestamp.realtime },
312 { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
313 { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
314 { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
315 { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
316 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32, "u", &m->n_installed_jobs },
317 { "org.freedesktop.systemd1.Manager", "NFailedJobs", bus_property_append_uint32, "u", &m->n_failed_jobs },
318 { "org.freedesktop.systemd1.Manager", "Progress", bus_manager_append_progress, "d", NULL },
319 { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
320 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
321 { "org.freedesktop.systemd1.Manager", "ShowStatus", bus_property_append_bool, "b", &m->show_status },
322 { "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
323 { "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
324 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
325 { "org.freedesktop.systemd1.Manager", "MountAuto", bus_property_append_bool, "b", &m->mount_auto },
326 { "org.freedesktop.systemd1.Manager", "SwapAuto", bus_property_append_bool, "b", &m->swap_auto },
327 { "org.freedesktop.systemd1.Manager", "DefaultControllers", bus_property_append_strv, "as", m->default_controllers },
328 { "org.freedesktop.systemd1.Manager", "DefaultStandardOutput", bus_manager_append_exec_output, "s", &m->default_std_output },
329 { "org.freedesktop.systemd1.Manager", "DefaultStandardError", bus_manager_append_exec_output, "s", &m->default_std_error },
330 #ifdef HAVE_SYSV_COMPAT
331 { "org.freedesktop.systemd1.Manager", "SysVConsole", bus_property_append_bool, "b", &m->sysv_console },
332 { "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
333 { "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
334 #endif
335 { NULL, NULL, NULL, NULL, NULL }
336 };
337
338 int r;
339 DBusError error;
340 DBusMessage *reply = NULL;
341 char * path = NULL;
342 JobType job_type = _JOB_TYPE_INVALID;
343 bool reload_if_possible = false;
344
345 assert(connection);
346 assert(message);
347 assert(m);
348
349 dbus_error_init(&error);
350
351 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
352 const char *name;
353 Unit *u;
354
355 if (!dbus_message_get_args(
356 message,
357 &error,
358 DBUS_TYPE_STRING, &name,
359 DBUS_TYPE_INVALID))
360 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
361
362 if (!(u = manager_get_unit(m, name))) {
363 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
364 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
365 }
366
367 if (!(reply = dbus_message_new_method_return(message)))
368 goto oom;
369
370 if (!(path = unit_dbus_path(u)))
371 goto oom;
372
373 if (!dbus_message_append_args(
374 reply,
375 DBUS_TYPE_OBJECT_PATH, &path,
376 DBUS_TYPE_INVALID))
377 goto oom;
378 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
379 Unit *u;
380 uint32_t pid;
381
382 if (!dbus_message_get_args(
383 message,
384 &error,
385 DBUS_TYPE_UINT32, &pid,
386 DBUS_TYPE_INVALID))
387 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
388
389 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
390 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
391 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
392 }
393
394 if (!(reply = dbus_message_new_method_return(message)))
395 goto oom;
396
397 if (!(path = unit_dbus_path(u)))
398 goto oom;
399
400 if (!dbus_message_append_args(
401 reply,
402 DBUS_TYPE_OBJECT_PATH, &path,
403 DBUS_TYPE_INVALID))
404 goto oom;
405 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
406 const char *name;
407 Unit *u;
408
409 if (!dbus_message_get_args(
410 message,
411 &error,
412 DBUS_TYPE_STRING, &name,
413 DBUS_TYPE_INVALID))
414 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
415
416 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
417 return bus_send_error_reply(m, connection, message, &error, r);
418
419 if (!(reply = dbus_message_new_method_return(message)))
420 goto oom;
421
422 if (!(path = unit_dbus_path(u)))
423 goto oom;
424
425 if (!dbus_message_append_args(
426 reply,
427 DBUS_TYPE_OBJECT_PATH, &path,
428 DBUS_TYPE_INVALID))
429 goto oom;
430
431 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
432 job_type = JOB_START;
433 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
434 job_type = JOB_START;
435 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
436 job_type = JOB_STOP;
437 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
438 job_type = JOB_RELOAD;
439 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
440 job_type = JOB_RESTART;
441 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
442 job_type = JOB_TRY_RESTART;
443 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
444 reload_if_possible = true;
445 job_type = JOB_RESTART;
446 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
447 reload_if_possible = true;
448 job_type = JOB_TRY_RESTART;
449 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
450 const char *name, *swho, *smode;
451 int32_t signo;
452 Unit *u;
453 KillMode mode;
454 KillWho who;
455
456 if (!dbus_message_get_args(
457 message,
458 &error,
459 DBUS_TYPE_STRING, &name,
460 DBUS_TYPE_STRING, &swho,
461 DBUS_TYPE_STRING, &smode,
462 DBUS_TYPE_INT32, &signo,
463 DBUS_TYPE_INVALID))
464 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
465
466 if ((mode = kill_mode_from_string(smode)) < 0 ||
467 (who = kill_who_from_string(swho)) < 0 ||
468 signo <= 0 ||
469 signo >= _NSIG)
470 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
471
472 if (!(u = manager_get_unit(m, name))) {
473 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
474 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
475 }
476
477 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
478 return bus_send_error_reply(m, connection, message, &error, r);
479
480 if (!(reply = dbus_message_new_method_return(message)))
481 goto oom;
482
483 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
484 uint32_t id;
485 Job *j;
486
487 if (!dbus_message_get_args(
488 message,
489 &error,
490 DBUS_TYPE_UINT32, &id,
491 DBUS_TYPE_INVALID))
492 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
493
494 if (!(j = manager_get_job(m, id))) {
495 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
496 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
497 }
498
499 if (!(reply = dbus_message_new_method_return(message)))
500 goto oom;
501
502 if (!(path = job_dbus_path(j)))
503 goto oom;
504
505 if (!dbus_message_append_args(
506 reply,
507 DBUS_TYPE_OBJECT_PATH, &path,
508 DBUS_TYPE_INVALID))
509 goto oom;
510
511 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
512
513 manager_clear_jobs(m);
514
515 if (!(reply = dbus_message_new_method_return(message)))
516 goto oom;
517
518 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
519
520 manager_reset_failed(m);
521
522 if (!(reply = dbus_message_new_method_return(message)))
523 goto oom;
524
525 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
526 const char *name;
527 Unit *u;
528
529 if (!dbus_message_get_args(
530 message,
531 &error,
532 DBUS_TYPE_STRING, &name,
533 DBUS_TYPE_INVALID))
534 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
535
536 if (!(u = manager_get_unit(m, name))) {
537 dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
538 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
539 }
540
541 unit_reset_failed(u);
542
543 if (!(reply = dbus_message_new_method_return(message)))
544 goto oom;
545
546 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
547 DBusMessageIter iter, sub;
548 Iterator i;
549 Unit *u;
550 const char *k;
551
552 if (!(reply = dbus_message_new_method_return(message)))
553 goto oom;
554
555 dbus_message_iter_init_append(reply, &iter);
556
557 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
558 goto oom;
559
560 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
561 char *u_path, *j_path;
562 const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
563 DBusMessageIter sub2;
564 uint32_t job_id;
565 Unit *f;
566
567 if (k != u->meta.id)
568 continue;
569
570 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
571 goto oom;
572
573 description = unit_description(u);
574 load_state = unit_load_state_to_string(u->meta.load_state);
575 active_state = unit_active_state_to_string(unit_active_state(u));
576 sub_state = unit_sub_state_to_string(u);
577
578 f = unit_following(u);
579 following = f ? f->meta.id : "";
580
581 if (!(u_path = unit_dbus_path(u)))
582 goto oom;
583
584 if (u->meta.job) {
585 job_id = (uint32_t) u->meta.job->id;
586
587 if (!(j_path = job_dbus_path(u->meta.job))) {
588 free(u_path);
589 goto oom;
590 }
591
592 sjob_type = job_type_to_string(u->meta.job->type);
593 } else {
594 job_id = 0;
595 j_path = u_path;
596 sjob_type = "";
597 }
598
599 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
600 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
601 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
602 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
603 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
604 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
605 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
606 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
607 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
608 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
609 free(u_path);
610 if (u->meta.job)
611 free(j_path);
612 goto oom;
613 }
614
615 free(u_path);
616 if (u->meta.job)
617 free(j_path);
618
619 if (!dbus_message_iter_close_container(&sub, &sub2))
620 goto oom;
621 }
622
623 if (!dbus_message_iter_close_container(&iter, &sub))
624 goto oom;
625
626 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
627 DBusMessageIter iter, sub;
628 Iterator i;
629 Job *j;
630
631 if (!(reply = dbus_message_new_method_return(message)))
632 goto oom;
633
634 dbus_message_iter_init_append(reply, &iter);
635
636 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
637 goto oom;
638
639 HASHMAP_FOREACH(j, m->jobs, i) {
640 char *u_path, *j_path;
641 const char *state, *type;
642 uint32_t id;
643 DBusMessageIter sub2;
644
645 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
646 goto oom;
647
648 id = (uint32_t) j->id;
649 state = job_state_to_string(j->state);
650 type = job_type_to_string(j->type);
651
652 if (!(j_path = job_dbus_path(j)))
653 goto oom;
654
655 if (!(u_path = unit_dbus_path(j->unit))) {
656 free(j_path);
657 goto oom;
658 }
659
660 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
661 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
662 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
663 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
664 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
665 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
666 free(j_path);
667 free(u_path);
668 goto oom;
669 }
670
671 free(j_path);
672 free(u_path);
673
674 if (!dbus_message_iter_close_container(&sub, &sub2))
675 goto oom;
676 }
677
678 if (!dbus_message_iter_close_container(&iter, &sub))
679 goto oom;
680
681 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
682 char *client;
683 Set *s;
684
685 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
686 if (!(s = set_new(string_hash_func, string_compare_func)))
687 goto oom;
688
689 if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
690 set_free(s);
691 goto oom;
692 }
693 }
694
695 if (!(client = strdup(message_get_sender_with_fallback(message))))
696 goto oom;
697
698 if ((r = set_put(s, client)) < 0) {
699 free(client);
700 return bus_send_error_reply(m, connection, message, NULL, r);
701 }
702
703 if (!(reply = dbus_message_new_method_return(message)))
704 goto oom;
705
706 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
707 char *client;
708
709 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
710 dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
711 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
712 }
713
714 free(client);
715
716 if (!(reply = dbus_message_new_method_return(message)))
717 goto oom;
718
719 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
720 FILE *f;
721 char *dump = NULL;
722 size_t size;
723
724 if (!(reply = dbus_message_new_method_return(message)))
725 goto oom;
726
727 if (!(f = open_memstream(&dump, &size)))
728 goto oom;
729
730 manager_dump_units(m, f, NULL);
731 manager_dump_jobs(m, f, NULL);
732
733 if (ferror(f)) {
734 fclose(f);
735 free(dump);
736 goto oom;
737 }
738
739 fclose(f);
740
741 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
742 free(dump);
743 goto oom;
744 }
745
746 free(dump);
747 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
748 const char *name;
749 dbus_bool_t cleanup;
750 Snapshot *s;
751
752 if (!dbus_message_get_args(
753 message,
754 &error,
755 DBUS_TYPE_STRING, &name,
756 DBUS_TYPE_BOOLEAN, &cleanup,
757 DBUS_TYPE_INVALID))
758 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
759
760 if (name && name[0] == 0)
761 name = NULL;
762
763 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
764 return bus_send_error_reply(m, connection, message, &error, r);
765
766 if (!(reply = dbus_message_new_method_return(message)))
767 goto oom;
768
769 if (!(path = unit_dbus_path(UNIT(s))))
770 goto oom;
771
772 if (!dbus_message_append_args(
773 reply,
774 DBUS_TYPE_OBJECT_PATH, &path,
775 DBUS_TYPE_INVALID))
776 goto oom;
777
778 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
779 char *introspection = NULL;
780 FILE *f;
781 Iterator i;
782 Unit *u;
783 Job *j;
784 const char *k;
785 size_t size;
786
787 if (!(reply = dbus_message_new_method_return(message)))
788 goto oom;
789
790 /* We roll our own introspection code here, instead of
791 * relying on bus_default_message_handler() because we
792 * need to generate our introspection string
793 * dynamically. */
794
795 if (!(f = open_memstream(&introspection, &size)))
796 goto oom;
797
798 fputs(INTROSPECTION_BEGIN, f);
799
800 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
801 char *p;
802
803 if (k != u->meta.id)
804 continue;
805
806 if (!(p = bus_path_escape(k))) {
807 fclose(f);
808 free(introspection);
809 goto oom;
810 }
811
812 fprintf(f, "<node name=\"unit/%s\"/>", p);
813 free(p);
814 }
815
816 HASHMAP_FOREACH(j, m->jobs, i)
817 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
818
819 fputs(INTROSPECTION_END, f);
820
821 if (ferror(f)) {
822 fclose(f);
823 free(introspection);
824 goto oom;
825 }
826
827 fclose(f);
828
829 if (!introspection)
830 goto oom;
831
832 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
833 free(introspection);
834 goto oom;
835 }
836
837 free(introspection);
838
839 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
840
841 assert(!m->queued_message);
842
843 /* Instead of sending the reply back right away, we
844 * just remember that we need to and then send it
845 * after the reload is finished. That way the caller
846 * knows when the reload finished. */
847
848 if (!(m->queued_message = dbus_message_new_method_return(message)))
849 goto oom;
850
851 m->queued_message_connection = connection;
852 m->exit_code = MANAGER_RELOAD;
853
854 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
855
856 if (!(reply = dbus_message_new_method_return(message)))
857 goto oom;
858
859 m->exit_code = MANAGER_REEXECUTE;
860
861 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
862
863 if (m->running_as == MANAGER_SYSTEM) {
864 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for user service managers.");
865 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
866 }
867
868 if (!(reply = dbus_message_new_method_return(message)))
869 goto oom;
870
871 m->exit_code = MANAGER_EXIT;
872
873 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
874
875 if (m->running_as != MANAGER_SYSTEM) {
876 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
877 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
878 }
879
880 if (!(reply = dbus_message_new_method_return(message)))
881 goto oom;
882
883 m->exit_code = MANAGER_REBOOT;
884
885 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
886
887 if (m->running_as != MANAGER_SYSTEM) {
888 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
889 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
890 }
891
892 if (!(reply = dbus_message_new_method_return(message)))
893 goto oom;
894
895 m->exit_code = MANAGER_POWEROFF;
896
897 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
898
899 if (m->running_as != MANAGER_SYSTEM) {
900 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
901 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
902 }
903
904 if (!(reply = dbus_message_new_method_return(message)))
905 goto oom;
906
907 m->exit_code = MANAGER_HALT;
908
909 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
910
911 if (m->running_as != MANAGER_SYSTEM) {
912 dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
913 return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
914 }
915
916 if (!(reply = dbus_message_new_method_return(message)))
917 goto oom;
918
919 m->exit_code = MANAGER_KEXEC;
920
921 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
922 char **l = NULL, **e = NULL;
923
924 if ((r = bus_parse_strv(message, &l)) < 0) {
925 if (r == -ENOMEM)
926 goto oom;
927
928 return bus_send_error_reply(m, connection, message, NULL, r);
929 }
930
931 e = strv_env_merge(2, m->environment, l);
932 strv_free(l);
933
934 if (!e)
935 goto oom;
936
937 if (!(reply = dbus_message_new_method_return(message))) {
938 strv_free(e);
939 goto oom;
940 }
941
942 strv_free(m->environment);
943 m->environment = e;
944
945 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
946 char **l = NULL, **e = NULL;
947
948 if ((r = bus_parse_strv(message, &l)) < 0) {
949 if (r == -ENOMEM)
950 goto oom;
951
952 return bus_send_error_reply(m, connection, message, NULL, r);
953 }
954
955 e = strv_env_delete(m->environment, 1, l);
956 strv_free(l);
957
958 if (!e)
959 goto oom;
960
961 if (!(reply = dbus_message_new_method_return(message)))
962 goto oom;
963
964 strv_free(m->environment);
965 m->environment = e;
966
967 } else
968 return bus_default_message_handler(m, connection, message, NULL, properties);
969
970 if (job_type != _JOB_TYPE_INVALID) {
971 const char *name, *smode, *old_name = NULL;
972 JobMode mode;
973 Job *j;
974 Unit *u;
975 bool b;
976
977 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
978 b = dbus_message_get_args(
979 message,
980 &error,
981 DBUS_TYPE_STRING, &old_name,
982 DBUS_TYPE_STRING, &name,
983 DBUS_TYPE_STRING, &smode,
984 DBUS_TYPE_INVALID);
985 else
986 b = dbus_message_get_args(
987 message,
988 &error,
989 DBUS_TYPE_STRING, &name,
990 DBUS_TYPE_STRING, &smode,
991 DBUS_TYPE_INVALID);
992
993 if (!b)
994 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
995
996 if (old_name)
997 if (!(u = manager_get_unit(m, old_name)) ||
998 !u->meta.job ||
999 u->meta.job->type != JOB_START) {
1000 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
1001 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
1002 }
1003
1004
1005 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
1006 dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
1007 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1008 }
1009
1010 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1011 return bus_send_error_reply(m, connection, message, &error, r);
1012
1013 if (reload_if_possible && unit_can_reload(u)) {
1014 if (job_type == JOB_RESTART)
1015 job_type = JOB_RELOAD_OR_START;
1016 else if (job_type == JOB_TRY_RESTART)
1017 job_type = JOB_RELOAD;
1018 }
1019
1020 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1021 (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1022 ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1023 (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1024 dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1025 return bus_send_error_reply(m, connection, message, &error, -EPERM);
1026 }
1027
1028 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1029 return bus_send_error_reply(m, connection, message, &error, r);
1030
1031 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1032 goto oom;
1033
1034 j->bus = connection;
1035
1036 if (!(reply = dbus_message_new_method_return(message)))
1037 goto oom;
1038
1039 if (!(path = job_dbus_path(j)))
1040 goto oom;
1041
1042 if (!dbus_message_append_args(
1043 reply,
1044 DBUS_TYPE_OBJECT_PATH, &path,
1045 DBUS_TYPE_INVALID))
1046 goto oom;
1047 }
1048
1049 free(path);
1050
1051 if (reply) {
1052 if (!dbus_connection_send(connection, reply, NULL))
1053 goto oom;
1054
1055 dbus_message_unref(reply);
1056 }
1057
1058 return DBUS_HANDLER_RESULT_HANDLED;
1059
1060 oom:
1061 free(path);
1062
1063 if (reply)
1064 dbus_message_unref(reply);
1065
1066 dbus_error_free(&error);
1067
1068 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1069 }
1070
1071 const DBusObjectPathVTable bus_manager_vtable = {
1072 .message_function = bus_manager_message_handler
1073 };
Unnamed repository; edit this file 'description' to name the repository.