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[thirdparty/systemd.git] / src / dbus-manager.c
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ea430986
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1/*-*- Mode: C; c-basic-offset: 8 -*-*/
2
a7334b09
LP
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
ea430986
LP
22#include <errno.h>
23
24#include "dbus.h"
25#include "log.h"
4139c1b2 26#include "dbus-manager.h"
1137a57c 27#include "strv.h"
ea430986 28
4288f619
LP
29#define BUS_MANAGER_INTERFACE \
30 " <interface name=\"org.freedesktop.systemd1.Manager\">\n" \
31 " <method name=\"GetUnit\">\n" \
32 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
33 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
34 " </method>\n" \
35 " <method name=\"LoadUnit\">\n" \
36 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
37 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
38 " </method>\n" \
c87eba54
LP
39 " <method name=\"StartUnit\">\n" \
40 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
41 " <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n" \
42 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
43 " </method>\n" \
44 " <method name=\"StopUnit\">\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" \
48 " </method>\n" \
49 " <method name=\"ReloadUnit\">\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" \
53 " </method>\n" \
54 " <method name=\"RestartUnit\">\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" \
58 " </method>\n" \
9a1ac7b9
LP
59 " <method name=\"TryRestartUnit\">\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" \
63 " </method>\n" \
4288f619
LP
64 " <method name=\"GetJob\">\n" \
65 " <arg name=\"id\" type=\"u\" direction=\"in\"/>\n" \
66 " <arg name=\"job\" type=\"o\" direction=\"out\"/>\n" \
67 " </method>\n" \
68 " <method name=\"ClearJobs\"/>\n" \
69 " <method name=\"ListUnits\">\n" \
70 " <arg name=\"units\" type=\"a(sssssouso)\" direction=\"out\"/>\n" \
71 " </method>\n" \
72 " <method name=\"ListJobs\">\n" \
73 " <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
74 " </method>\n" \
75 " <method name=\"Subscribe\"/>\n" \
76 " <method name=\"Unsubscribe\"/>\n" \
77 " <method name=\"Dump\"/>\n" \
78 " <method name=\"CreateSnapshot\">\n" \
79 " <arg name=\"name\" type=\"s\" direction=\"in\"/>\n" \
80 " <arg nane=\"cleanup\" type=\"b\" direction=\"in\"/>\n" \
81 " <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n" \
82 " </method>\n" \
83 " <method name=\"Reload\"/>\n" \
84 " <method name=\"Reexecute\"/>\n" \
85 " <method name=\"Exit\"/>\n" \
86 " <method name=\"SetEnvironment\">\n" \
87 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
88 " </method>\n" \
89 " <method name=\"UnsetEnvironment\">\n" \
90 " <arg name=\"names\" type=\"as\" direction=\"in\"/>\n" \
91 " </method>\n" \
92 " <signal name=\"UnitNew\">\n" \
93 " <arg name=\"id\" type=\"s\"/>\n" \
94 " <arg name=\"unit\" type=\"o\"/>\n" \
95 " </signal>\n" \
96 " <signal name=\"UnitRemoved\">\n" \
97 " <arg name=\"id\" type=\"s\"/>\n" \
98 " <arg name=\"unit\" type=\"o\"/>\n" \
99 " </signal>\n" \
100 " <signal name=\"JobNew\">\n" \
101 " <arg name=\"id\" type=\"u\"/>\n" \
102 " <arg name=\"job\" type=\"o\"/>\n" \
103 " </signal>\n" \
104 " <signal name=\"JobRemoved\">\n" \
105 " <arg name=\"id\" type=\"u\"/>\n" \
106 " <arg name=\"job\" type=\"o\"/>\n" \
107 " <arg name=\"success\" type=\"b\"/>\n" \
108 " </signal>" \
109 " <property name=\"Version\" type=\"s\" access=\"read\"/>\n" \
110 " <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
0442c13b 111 " <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
4288f619
LP
112 " <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n" \
113 " <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
114 " <property name=\"NNames\" type=\"u\" access=\"read\"/>\n" \
115 " <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n" \
116 " <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
f295f5c0
LP
117 " <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
118 " <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
119 " <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
120 " <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n" \
121 " <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
4288f619
LP
122 " </interface>\n"
123
ea430986
LP
124#define INTROSPECTION_BEGIN \
125 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
4288f619
LP
126 "<node>\n" \
127 BUS_MANAGER_INTERFACE \
ea430986
LP
128 BUS_PROPERTIES_INTERFACE \
129 BUS_INTROSPECTABLE_INTERFACE
130
131#define INTROSPECTION_END \
4288f619
LP
132 "</node>\n"
133
134const char bus_manager_interface[] = BUS_MANAGER_INTERFACE;
ea430986 135
4139c1b2 136static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
1adf1049
LP
137
138static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
139 const char *t;
140
141 assert(m);
142 assert(i);
143 assert(property);
144
145 t = log_target_to_string(log_get_target());
146
147 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
148 return -ENOMEM;
149
150 return 0;
151}
152
153static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
154 const char *t;
155
156 assert(m);
157 assert(i);
158 assert(property);
159
160 t = log_level_to_string(log_get_max_level());
161
162 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
163 return -ENOMEM;
164
165 return 0;
166}
167
4f0f902f
LP
168static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
169 uint32_t u;
170
171 assert(m);
172 assert(i);
173 assert(property);
174
175 u = hashmap_size(m->units);
176
177 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
178 return -ENOMEM;
179
180 return 0;
181}
182
183static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
184 uint32_t u;
185
186 assert(m);
187 assert(i);
188 assert(property);
189
190 u = hashmap_size(m->jobs);
191
192 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
193 return -ENOMEM;
194
195 return 0;
196}
197
5e8d1c9a 198static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
ea430986 199 Manager *m = data;
1adf1049
LP
200
201 const BusProperty properties[] = {
f295f5c0
LP
202 { "org.freedesktop.systemd1.Manager", "Version", bus_property_append_string, "s", PACKAGE_STRING },
203 { "org.freedesktop.systemd1.Manager", "RunningAs", bus_manager_append_running_as, "s", &m->running_as },
204 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t", &m->startup_timestamp.realtime },
205 { "org.freedesktop.systemd1.Manager", "LogLevel", bus_manager_append_log_level, "s", NULL },
206 { "org.freedesktop.systemd1.Manager", "LogTarget", bus_manager_append_log_target, "s", NULL },
207 { "org.freedesktop.systemd1.Manager", "NNames", bus_manager_append_n_names, "u", NULL },
208 { "org.freedesktop.systemd1.Manager", "NJobs", bus_manager_append_n_jobs, "u", NULL },
209 { "org.freedesktop.systemd1.Manager", "Environment", bus_property_append_strv, "as", m->environment },
210 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn", bus_property_append_bool, "b", &m->confirm_spawn },
211 { "org.freedesktop.systemd1.Manager", "UnitPath", bus_property_append_strv, "as", m->lookup_paths.unit_path },
212 { "org.freedesktop.systemd1.Manager", "SysVInitPath", bus_property_append_strv, "as", m->lookup_paths.sysvinit_path },
213 { "org.freedesktop.systemd1.Manager", "SysVRcndPath", bus_property_append_strv, "as", m->lookup_paths.sysvrcnd_path },
214 { "org.freedesktop.systemd1.Manager", "NotifySocket", bus_property_append_string, "s", m->notify_socket },
1adf1049
LP
215 { NULL, NULL, NULL, NULL, NULL }
216 };
217
218 int r;
ea430986
LP
219 DBusError error;
220 DBusMessage *reply = NULL;
221 char * path = NULL;
c87eba54 222 JobType job_type = _JOB_TYPE_INVALID;
ea430986
LP
223
224 assert(connection);
225 assert(message);
226 assert(m);
227
228 dbus_error_init(&error);
229
230 log_debug("Got D-Bus request: %s.%s() on %s",
231 dbus_message_get_interface(message),
232 dbus_message_get_member(message),
233 dbus_message_get_path(message));
234
4139c1b2 235 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
ea430986
LP
236 const char *name;
237 Unit *u;
238
239 if (!dbus_message_get_args(
240 message,
241 &error,
242 DBUS_TYPE_STRING, &name,
243 DBUS_TYPE_INVALID))
5e8d1c9a 244 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
ea430986
LP
245
246 if (!(u = manager_get_unit(m, name)))
5e8d1c9a 247 return bus_send_error_reply(m, connection, message, NULL, -ENOENT);
ea430986
LP
248
249 if (!(reply = dbus_message_new_method_return(message)))
250 goto oom;
251
252 if (!(path = unit_dbus_path(u)))
253 goto oom;
254
255 if (!dbus_message_append_args(
256 reply,
257 DBUS_TYPE_OBJECT_PATH, &path,
258 DBUS_TYPE_INVALID))
259 goto oom;
260
4139c1b2 261 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
ea430986
LP
262 const char *name;
263 Unit *u;
264
265 if (!dbus_message_get_args(
266 message,
267 &error,
268 DBUS_TYPE_STRING, &name,
269 DBUS_TYPE_INVALID))
5e8d1c9a 270 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
ea430986 271
9e2f7c11 272 if ((r = manager_load_unit(m, name, NULL, &u)) < 0)
5e8d1c9a 273 return bus_send_error_reply(m, connection, message, NULL, r);
ea430986
LP
274
275 if (!(reply = dbus_message_new_method_return(message)))
276 goto oom;
277
278 if (!(path = unit_dbus_path(u)))
279 goto oom;
280
281 if (!dbus_message_append_args(
282 reply,
283 DBUS_TYPE_OBJECT_PATH, &path,
284 DBUS_TYPE_INVALID))
285 goto oom;
286
c87eba54
LP
287 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
288 job_type = JOB_START;
289 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
290 job_type = JOB_STOP;
291 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
292 job_type = JOB_RELOAD;
293 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
294 job_type = JOB_RESTART;
9a1ac7b9
LP
295 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
296 job_type = JOB_TRY_RESTART;
c87eba54 297 else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
ea430986
LP
298 uint32_t id;
299 Job *j;
300
301 if (!dbus_message_get_args(
302 message,
303 &error,
304 DBUS_TYPE_UINT32, &id,
305 DBUS_TYPE_INVALID))
5e8d1c9a 306 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
ea430986
LP
307
308 if (!(j = manager_get_job(m, id)))
5e8d1c9a 309 return bus_send_error_reply(m, connection, message, NULL, -ENOENT);
ea430986
LP
310
311 if (!(reply = dbus_message_new_method_return(message)))
312 goto oom;
313
314 if (!(path = job_dbus_path(j)))
315 goto oom;
316
317 if (!dbus_message_append_args(
318 reply,
319 DBUS_TYPE_OBJECT_PATH, &path,
320 DBUS_TYPE_INVALID))
321 goto oom;
322
4139c1b2 323 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
ea430986
LP
324
325 manager_clear_jobs(m);
326
327 if (!(reply = dbus_message_new_method_return(message)))
328 goto oom;
329
4139c1b2 330 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
ea430986
LP
331 DBusMessageIter iter, sub;
332 Iterator i;
333 Unit *u;
334 const char *k;
335
336 if (!(reply = dbus_message_new_method_return(message)))
337 goto oom;
338
339 dbus_message_iter_init_append(reply, &iter);
340
10a94420 341 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sssssouso)", &sub))
ea430986
LP
342 goto oom;
343
344 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
47be870b 345 char *u_path, *j_path;
c87eba54 346 const char *description, *load_state, *active_state, *sub_state, *sjob_type;
ea430986
LP
347 DBusMessageIter sub2;
348 uint32_t job_id;
349
9e2f7c11 350 if (k != u->meta.id)
ea430986
LP
351 continue;
352
353 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
354 goto oom;
355
356 description = unit_description(u);
357 load_state = unit_load_state_to_string(u->meta.load_state);
358 active_state = unit_active_state_to_string(unit_active_state(u));
10a94420 359 sub_state = unit_sub_state_to_string(u);
ea430986 360
47be870b 361 if (!(u_path = unit_dbus_path(u)))
ea430986
LP
362 goto oom;
363
364 if (u->meta.job) {
365 job_id = (uint32_t) u->meta.job->id;
366
47be870b
LP
367 if (!(j_path = job_dbus_path(u->meta.job))) {
368 free(u_path);
ea430986
LP
369 goto oom;
370 }
371
c87eba54 372 sjob_type = job_type_to_string(u->meta.job->type);
ea430986
LP
373 } else {
374 job_id = 0;
47be870b 375 j_path = u_path;
c87eba54 376 sjob_type = "";
ea430986
LP
377 }
378
9e2f7c11 379 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
ea430986
LP
380 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
381 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
382 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
10a94420 383 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
47be870b 384 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
ea430986 385 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
c87eba54 386 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
47be870b
LP
387 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
388 free(u_path);
ea430986 389 if (u->meta.job)
47be870b 390 free(j_path);
ea430986
LP
391 goto oom;
392 }
393
47be870b 394 free(u_path);
ea430986 395 if (u->meta.job)
47be870b 396 free(j_path);
ea430986
LP
397
398 if (!dbus_message_iter_close_container(&sub, &sub2))
399 goto oom;
400 }
401
402 if (!dbus_message_iter_close_container(&iter, &sub))
403 goto oom;
404
4139c1b2 405 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
ea430986
LP
406 DBusMessageIter iter, sub;
407 Iterator i;
408 Job *j;
409
410 if (!(reply = dbus_message_new_method_return(message)))
411 goto oom;
412
413 dbus_message_iter_init_append(reply, &iter);
414
415 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
416 goto oom;
417
418 HASHMAP_FOREACH(j, m->jobs, i) {
47be870b 419 char *u_path, *j_path;
9e2f7c11 420 const char *state, *type;
ea430986
LP
421 uint32_t id;
422 DBusMessageIter sub2;
423
424 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
425 goto oom;
426
427 id = (uint32_t) j->id;
ea430986 428 state = job_state_to_string(j->state);
2b53c70b 429 type = job_type_to_string(j->type);
ea430986 430
47be870b 431 if (!(j_path = job_dbus_path(j)))
ea430986
LP
432 goto oom;
433
47be870b
LP
434 if (!(u_path = unit_dbus_path(j->unit))) {
435 free(j_path);
ea430986
LP
436 goto oom;
437 }
438
439 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
9e2f7c11 440 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
ea430986
LP
441 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
442 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
47be870b
LP
443 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
444 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
445 free(j_path);
446 free(u_path);
ea430986
LP
447 goto oom;
448 }
449
47be870b
LP
450 free(j_path);
451 free(u_path);
ea430986
LP
452
453 if (!dbus_message_iter_close_container(&sub, &sub2))
454 goto oom;
455 }
456
457 if (!dbus_message_iter_close_container(&iter, &sub))
458 goto oom;
459
4139c1b2 460 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
c1e1601e 461 char *client;
a567261a
LP
462 Set *s;
463
464 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
465 if (!(s = set_new(string_hash_func, string_compare_func)))
466 goto oom;
467
468 if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
469 set_free(s);
470 goto oom;
471 }
472 }
c1e1601e
LP
473
474 if (!(client = strdup(dbus_message_get_sender(message))))
475 goto oom;
476
a567261a
LP
477 if ((r = set_put(s, client)) < 0) {
478 free(client);
5e8d1c9a 479 return bus_send_error_reply(m, connection, message, NULL, r);
a567261a 480 }
c1e1601e
LP
481
482 if (!(reply = dbus_message_new_method_return(message)))
483 goto oom;
484
4139c1b2 485 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
c1e1601e
LP
486 char *client;
487
a567261a 488 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) dbus_message_get_sender(message))))
5e8d1c9a 489 return bus_send_error_reply(m, connection, message, NULL, -ENOENT);
c1e1601e
LP
490
491 free(client);
492
493 if (!(reply = dbus_message_new_method_return(message)))
494 goto oom;
495
4139c1b2 496 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
b152adec
LP
497 FILE *f;
498 char *dump = NULL;
499 size_t size;
500
501 if (!(reply = dbus_message_new_method_return(message)))
502 goto oom;
503
504 if (!(f = open_memstream(&dump, &size)))
505 goto oom;
506
507 manager_dump_units(m, f, NULL);
508 manager_dump_jobs(m, f, NULL);
509
510 if (ferror(f)) {
511 fclose(f);
512 free(dump);
513 goto oom;
514 }
515
516 fclose(f);
517
518 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
519 free(dump);
520 goto oom;
521 }
522
523 free(dump);
4139c1b2
LP
524 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
525 const char *name;
526 dbus_bool_t cleanup;
527 Snapshot *s;
528
529 if (!dbus_message_get_args(
530 message,
531 &error,
532 DBUS_TYPE_STRING, &name,
533 DBUS_TYPE_BOOLEAN, &cleanup,
534 DBUS_TYPE_INVALID))
5e8d1c9a 535 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
4139c1b2
LP
536
537 if (name && name[0] == 0)
538 name = NULL;
539
540 if ((r = snapshot_create(m, name, cleanup, &s)) < 0)
5e8d1c9a 541 return bus_send_error_reply(m, connection, message, NULL, r);
4139c1b2
LP
542
543 if (!(reply = dbus_message_new_method_return(message)))
544 goto oom;
545
546 if (!(path = unit_dbus_path(UNIT(s))))
547 goto oom;
548
549 if (!dbus_message_append_args(
550 reply,
551 DBUS_TYPE_OBJECT_PATH, &path,
552 DBUS_TYPE_INVALID))
553 goto oom;
b152adec 554
ea430986
LP
555 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
556 char *introspection = NULL;
557 FILE *f;
558 Iterator i;
559 Unit *u;
560 Job *j;
561 const char *k;
562 size_t size;
563
564 if (!(reply = dbus_message_new_method_return(message)))
565 goto oom;
566
567 /* We roll our own introspection code here, instead of
568 * relying on bus_default_message_handler() because we
569 * need to generate our introspection string
570 * dynamically. */
571
572 if (!(f = open_memstream(&introspection, &size)))
573 goto oom;
574
575 fputs(INTROSPECTION_BEGIN, f);
576
577 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
578 char *p;
579
9e2f7c11 580 if (k != u->meta.id)
ea430986
LP
581 continue;
582
583 if (!(p = bus_path_escape(k))) {
584 fclose(f);
585 free(introspection);
586 goto oom;
587 }
588
589 fprintf(f, "<node name=\"unit/%s\"/>", p);
590 free(p);
591 }
592
593 HASHMAP_FOREACH(j, m->jobs, i)
594 fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
595
596 fputs(INTROSPECTION_END, f);
597
598 if (ferror(f)) {
599 fclose(f);
600 free(introspection);
601 goto oom;
602 }
603
604 fclose(f);
605
606 if (!introspection)
607 goto oom;
608
609 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
610 free(introspection);
611 goto oom;
612 }
613
614 free(introspection);
615
a16e1123
LP
616 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
617
618 assert(!m->queued_message);
619
620 /* Instead of sending the reply back right away, we
621 * just remember that we need to and then send it
622 * after the reload is finished. That way the caller
623 * knows when the reload finished. */
624
625 if (!(m->queued_message = dbus_message_new_method_return(message)))
626 goto oom;
627
628 m->exit_code = MANAGER_RELOAD;
629
630 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
631
632 if (!(reply = dbus_message_new_method_return(message)))
633 goto oom;
634
635 m->exit_code = MANAGER_REEXECUTE;
636
637 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
638
a3d4e06d 639 if (m->running_as == MANAGER_SYSTEM)
5e8d1c9a 640 return bus_send_error_reply(m, connection, message, NULL, -ENOTSUP);
a16e1123
LP
641
642 if (!(reply = dbus_message_new_method_return(message)))
643 goto oom;
644
645 m->exit_code = MANAGER_EXIT;
646
1137a57c
LP
647 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
648 char **l = NULL, **e = NULL;
649
650 if ((r = bus_parse_strv(message, &l)) < 0) {
651 if (r == -ENOMEM)
652 goto oom;
653
5e8d1c9a 654 return bus_send_error_reply(m, connection, message, NULL, r);
1137a57c
LP
655 }
656
5b6319dc 657 e = strv_env_merge(2, m->environment, l);
1137a57c
LP
658 strv_free(l);
659
660 if (!e)
661 goto oom;
662
663 if (!(reply = dbus_message_new_method_return(message))) {
664 strv_free(e);
665 goto oom;
666 }
667
668 strv_free(m->environment);
669 m->environment = e;
670
671 } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
672 char **l = NULL, **e = NULL;
673
674 if ((r = bus_parse_strv(message, &l)) < 0) {
675 if (r == -ENOMEM)
676 goto oom;
677
5e8d1c9a 678 return bus_send_error_reply(m, connection, message, NULL, r);
1137a57c
LP
679 }
680
5b6319dc 681 e = strv_env_delete(m->environment, 1, l);
1137a57c
LP
682 strv_free(l);
683
684 if (!e)
685 goto oom;
686
687 if (!(reply = dbus_message_new_method_return(message)))
688 goto oom;
689
690 strv_free(m->environment);
691 m->environment = e;
692
ea430986 693 } else
5e8d1c9a 694 return bus_default_message_handler(m, connection, message, NULL, properties);
ea430986 695
c87eba54
LP
696
697 if (job_type != _JOB_TYPE_INVALID) {
698 const char *name, *smode;
699 JobMode mode;
700 Job *j;
701 Unit *u;
702
703 if (!dbus_message_get_args(
704 message,
705 &error,
706 DBUS_TYPE_STRING, &name,
707 DBUS_TYPE_STRING, &smode,
708 DBUS_TYPE_INVALID))
5e8d1c9a 709 return bus_send_error_reply(m, connection, message, &error, -EINVAL);
c87eba54
LP
710
711 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID)
5e8d1c9a 712 return bus_send_error_reply(m, connection, message, NULL, -EINVAL);
c87eba54
LP
713
714 if ((r = manager_load_unit(m, name, NULL, &u)) < 0)
5e8d1c9a 715 return bus_send_error_reply(m, connection, message, NULL, r);
c87eba54
LP
716
717 if (job_type == JOB_START && u->meta.only_by_dependency)
5e8d1c9a 718 return bus_send_error_reply(m, connection, message, NULL, -EPERM);
c87eba54
LP
719
720 if ((r = manager_add_job(m, job_type, u, mode, true, &j)) < 0)
5e8d1c9a 721 return bus_send_error_reply(m, connection, message, NULL, r);
c87eba54 722
a567261a
LP
723 if (!(j->bus_client = strdup(dbus_message_get_sender(message))))
724 goto oom;
725
726 j->bus = connection;
727
c87eba54
LP
728 if (!(reply = dbus_message_new_method_return(message)))
729 goto oom;
730
731 if (!(path = job_dbus_path(j)))
732 goto oom;
733
734 if (!dbus_message_append_args(
735 reply,
736 DBUS_TYPE_OBJECT_PATH, &path,
737 DBUS_TYPE_INVALID))
738 goto oom;
a567261a 739
c87eba54
LP
740 }
741
ea430986
LP
742 free(path);
743
744 if (reply) {
745 if (!dbus_connection_send(connection, reply, NULL))
746 goto oom;
747
748 dbus_message_unref(reply);
749 }
750
751 return DBUS_HANDLER_RESULT_HANDLED;
752
753oom:
754 free(path);
755
756 if (reply)
757 dbus_message_unref(reply);
758
759 dbus_error_free(&error);
760
761 return DBUS_HANDLER_RESULT_NEED_MEMORY;
762}
763
764const DBusObjectPathVTable bus_manager_vtable = {
765 .message_function = bus_manager_message_handler
766};