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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
ea430986 | 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 | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
ea430986 LP |
22 | #include <sys/epoll.h> |
23 | #include <sys/timerfd.h> | |
24 | #include <errno.h> | |
25 | #include <unistd.h> | |
26 | ||
718db961 | 27 | #include "sd-bus.h" |
ea430986 LP |
28 | #include "log.h" |
29 | #include "strv.h" | |
49e942b2 | 30 | #include "mkdir.h" |
4db17f29 | 31 | #include "missing.h" |
4139c1b2 LP |
32 | #include "dbus-unit.h" |
33 | #include "dbus-job.h" | |
34 | #include "dbus-manager.h" | |
718db961 LP |
35 | #include "dbus-execute.h" |
36 | #include "dbus-kill.h" | |
37 | #include "dbus-cgroup.h" | |
8f6df3fa | 38 | #include "special.h" |
718db961 LP |
39 | #include "dbus.h" |
40 | #include "bus-util.h" | |
41 | #include "bus-error.h" | |
42 | #include "bus-errors.h" | |
43 | #include "strxcpyx.h" | |
44 | #include "dbus-client-track.h" | |
969987ea LP |
45 | #include "bus-internal.h" |
46 | #include "selinux-access.h" | |
4288f619 | 47 | |
417b1a62 | 48 | #define CONNECTIONS_MAX 512 |
5e8d1c9a | 49 | |
718db961 LP |
50 | static void destroy_bus(Manager *m, sd_bus **bus); |
51 | ||
52 | int bus_send_queued_message(Manager *m) { | |
53 | int r; | |
8e274523 | 54 | |
8e274523 | 55 | assert(m); |
2e317f52 | 56 | |
718db961 LP |
57 | if (!m->queued_message) |
58 | return 0; | |
8e274523 | 59 | |
718db961 | 60 | assert(m->queued_message_bus); |
8e274523 | 61 | |
718db961 LP |
62 | /* If we cannot get rid of this message we won't dispatch any |
63 | * D-Bus messages, so that we won't end up wanting to queue | |
64 | * another message. */ | |
ea430986 | 65 | |
718db961 LP |
66 | r = sd_bus_send(m->queued_message_bus, m->queued_message, NULL); |
67 | if (r < 0) | |
68 | log_warning("Failed to send queued message: %s", strerror(-r)); | |
ea430986 | 69 | |
718db961 LP |
70 | m->queued_message = sd_bus_message_unref(m->queued_message); |
71 | m->queued_message_bus = sd_bus_unref(m->queued_message_bus); | |
ea430986 | 72 | |
718db961 | 73 | return 0; |
ea430986 LP |
74 | } |
75 | ||
ebcf1f97 | 76 | static int signal_agent_released(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 LP |
77 | Manager *m = userdata; |
78 | const char *cgroup; | |
79 | int r; | |
ea430986 | 80 | |
718db961 LP |
81 | assert(bus); |
82 | assert(message); | |
ea430986 LP |
83 | assert(m); |
84 | ||
718db961 LP |
85 | r = sd_bus_message_read(message, "s", &cgroup); |
86 | if (r < 0) { | |
87 | bus_log_parse_error(r); | |
88 | return 0; | |
89 | } | |
ea430986 | 90 | |
718db961 | 91 | manager_notify_cgroup_empty(m, cgroup); |
ea430986 | 92 | |
718db961 LP |
93 | if (m->running_as == SYSTEMD_SYSTEM && m->system_bus) { |
94 | /* If we are running as system manager, forward the | |
95 | * message to the system bus */ | |
ea430986 | 96 | |
718db961 LP |
97 | r = sd_bus_send(m->system_bus, message, NULL); |
98 | if (r < 0) | |
99 | log_warning("Failed to forward Released message: %s", strerror(-r)); | |
100 | } | |
ea430986 | 101 | |
718db961 LP |
102 | return 0; |
103 | } | |
ea430986 | 104 | |
ebcf1f97 | 105 | static int signal_disconnected(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 | 106 | Manager *m = userdata; |
ea430986 | 107 | |
718db961 LP |
108 | assert(bus); |
109 | assert(message); | |
110 | assert(m); | |
ea430986 | 111 | |
718db961 LP |
112 | if (bus == m->api_bus) |
113 | destroy_bus(m, &m->api_bus); | |
114 | if (bus == m->system_bus) | |
115 | destroy_bus(m, &m->system_bus); | |
116 | if (set_remove(m->private_buses, bus)) { | |
117 | log_debug("Got disconnect on private connection."); | |
118 | destroy_bus(m, &bus); | |
ea430986 LP |
119 | } |
120 | ||
718db961 | 121 | return 0; |
ea430986 LP |
122 | } |
123 | ||
ebcf1f97 | 124 | static int signal_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 LP |
125 | const char *name, *old_owner, *new_owner; |
126 | Manager *m = userdata; | |
127 | int r; | |
ea430986 | 128 | |
718db961 LP |
129 | assert(bus); |
130 | assert(message); | |
ea430986 LP |
131 | assert(m); |
132 | ||
718db961 LP |
133 | r = sd_bus_message_read(message, "sss", &name, &old_owner, &new_owner); |
134 | if (r < 0) { | |
135 | bus_log_parse_error(r); | |
136 | return 0; | |
137 | } | |
ea430986 | 138 | |
718db961 LP |
139 | manager_dispatch_bus_name_owner_changed( |
140 | m, name, | |
141 | isempty(old_owner) ? NULL : old_owner, | |
142 | isempty(new_owner) ? NULL : new_owner); | |
ea430986 | 143 | |
718db961 | 144 | return 0; |
ea430986 LP |
145 | } |
146 | ||
ebcf1f97 | 147 | static int signal_activation_request(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *ret_error) { |
718db961 LP |
148 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
149 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; | |
150 | Manager *m = userdata; | |
151 | const char *name; | |
152 | Unit *u; | |
153 | int r; | |
ea430986 | 154 | |
718db961 LP |
155 | assert(bus); |
156 | assert(message); | |
ea430986 LP |
157 | assert(m); |
158 | ||
718db961 LP |
159 | r = sd_bus_message_read(message, "s", &name); |
160 | if (r < 0) { | |
161 | bus_log_parse_error(r); | |
162 | return 0; | |
163 | } | |
ea430986 | 164 | |
718db961 LP |
165 | if (manager_unit_inactive_or_pending(m, SPECIAL_DBUS_SERVICE) || |
166 | manager_unit_inactive_or_pending(m, SPECIAL_DBUS_SOCKET)) { | |
167 | r = sd_bus_error_setf(&error, BUS_ERROR_SHUTTING_DOWN, "Refusing activation, D-Bus is shutting down."); | |
168 | goto failed; | |
169 | } | |
ea430986 | 170 | |
718db961 LP |
171 | r = manager_load_unit(m, name, NULL, &error, &u); |
172 | if (r < 0) | |
173 | goto failed; | |
ea430986 | 174 | |
718db961 | 175 | if (u->refuse_manual_start) { |
d14ab08b | 176 | r = sd_bus_error_setf(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, %s may be requested by dependency only.", u->id); |
718db961 | 177 | goto failed; |
ea430986 LP |
178 | } |
179 | ||
718db961 LP |
180 | r = manager_add_job(m, JOB_START, u, JOB_REPLACE, true, &error, NULL); |
181 | if (r < 0) | |
182 | goto failed; | |
ea430986 | 183 | |
718db961 | 184 | /* Successfully queued, that's it for us */ |
ea430986 | 185 | return 0; |
ea430986 | 186 | |
718db961 LP |
187 | failed: |
188 | if (!sd_bus_error_is_set(&error)) | |
189 | sd_bus_error_set_errno(&error, r); | |
ea430986 | 190 | |
718db961 | 191 | log_debug("D-Bus activation failed for %s: %s", name, bus_error_message(&error, r)); |
ea430986 | 192 | |
151b9b96 | 193 | r = sd_bus_message_new_signal(bus, &reply, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Activator", "ActivationFailure"); |
718db961 LP |
194 | if (r < 0) { |
195 | bus_log_create_error(r); | |
196 | return 0; | |
197 | } | |
198 | ||
fa0fed49 | 199 | r = sd_bus_message_append(reply, "sss", name, error.name, error.message); |
718db961 LP |
200 | if (r < 0) { |
201 | bus_log_create_error(r); | |
202 | return 0; | |
203 | } | |
204 | ||
205 | r = sd_bus_send_to(bus, reply, "org.freedesktop.DBus", NULL); | |
206 | if (r < 0) { | |
207 | log_error("Failed to respond with to bus activation request: %s", strerror(-r)); | |
208 | return r; | |
209 | } | |
ea430986 | 210 | |
718db961 | 211 | return 0; |
ea430986 LP |
212 | } |
213 | ||
ad5b215d | 214 | #ifdef HAVE_SELINUX |
969987ea LP |
215 | static int selinux_filter(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
216 | Manager *m = userdata; | |
217 | const char *verb, *path; | |
218 | Unit *u = NULL; | |
219 | Job *j; | |
220 | int r; | |
221 | ||
222 | assert(bus); | |
223 | assert(message); | |
224 | ||
225 | /* Our own method calls are all protected individually with | |
226 | * selinux checks, but the built-in interfaces need to be | |
227 | * protected too. */ | |
228 | ||
229 | if (sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Properties", "Set")) | |
230 | verb = "reload"; | |
231 | else if (sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", NULL) || | |
232 | sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Properties", NULL) || | |
233 | sd_bus_message_is_method_call(message, "org.freedesktop.DBus.ObjectManager", NULL) || | |
234 | sd_bus_message_is_method_call(message, "org.freedesktop.DBus.Peer", NULL)) | |
235 | verb = "status"; | |
236 | else | |
237 | return 0; | |
238 | ||
239 | path = sd_bus_message_get_path(message); | |
240 | ||
241 | if (object_path_startswith("/org/freedesktop/systemd1", path)) { | |
242 | ||
243 | r = selinux_access_check(bus, message, verb, error); | |
244 | if (r < 0) | |
245 | return r; | |
246 | ||
247 | return 0; | |
248 | } | |
249 | ||
250 | if (streq_ptr(path, "/org/freedesktop/systemd1/unit/self")) { | |
5b12334d | 251 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
969987ea LP |
252 | pid_t pid; |
253 | ||
5b12334d LP |
254 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); |
255 | if (r < 0) | |
256 | return 0; | |
257 | ||
258 | r = sd_bus_creds_get_pid(creds, &pid); | |
969987ea LP |
259 | if (r < 0) |
260 | return 0; | |
261 | ||
262 | u = manager_get_unit_by_pid(m, pid); | |
263 | } else { | |
264 | r = manager_get_job_from_dbus_path(m, path, &j); | |
265 | if (r >= 0) | |
266 | u = j->unit; | |
267 | else | |
268 | manager_load_unit_from_dbus_path(m, path, NULL, &u); | |
269 | } | |
270 | ||
271 | if (!u) | |
272 | return 0; | |
273 | ||
274 | r = selinux_unit_access_check(u, bus, message, verb, error); | |
275 | if (r < 0) | |
276 | return r; | |
277 | ||
278 | return 0; | |
279 | } | |
ad5b215d | 280 | #endif |
969987ea | 281 | |
f00c3121 | 282 | static int bus_job_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 LP |
283 | Manager *m = userdata; |
284 | Job *j; | |
285 | int r; | |
ea430986 | 286 | |
718db961 LP |
287 | assert(bus); |
288 | assert(path); | |
289 | assert(interface); | |
290 | assert(found); | |
ea430986 LP |
291 | assert(m); |
292 | ||
718db961 LP |
293 | r = manager_get_job_from_dbus_path(m, path, &j); |
294 | if (r < 0) | |
295 | return 0; | |
ea430986 | 296 | |
718db961 LP |
297 | *found = j; |
298 | return 1; | |
299 | } | |
ea430986 | 300 | |
f00c3121 | 301 | static int find_unit(Manager *m, sd_bus *bus, const char *path, Unit **unit, sd_bus_error *error) { |
718db961 LP |
302 | Unit *u; |
303 | int r; | |
ea430986 | 304 | |
718db961 LP |
305 | assert(m); |
306 | assert(bus); | |
307 | assert(path); | |
ea430986 | 308 | |
718db961 | 309 | if (streq_ptr(path, "/org/freedesktop/systemd1/unit/self")) { |
5b12334d | 310 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 LP |
311 | sd_bus_message *message; |
312 | pid_t pid; | |
ea430986 | 313 | |
718db961 LP |
314 | message = sd_bus_get_current(bus); |
315 | if (!message) | |
f00c3121 | 316 | return 0; |
ea430986 | 317 | |
5b12334d | 318 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); |
718db961 | 319 | if (r < 0) |
5b12334d LP |
320 | return r; |
321 | ||
322 | r = sd_bus_creds_get_pid(creds, &pid); | |
323 | if (r < 0) | |
324 | return r; | |
ea430986 | 325 | |
718db961 LP |
326 | u = manager_get_unit_by_pid(m, pid); |
327 | } else { | |
f00c3121 | 328 | r = manager_load_unit_from_dbus_path(m, path, error, &u); |
718db961 | 329 | if (r < 0) |
f00c3121 | 330 | return 0; |
718db961 | 331 | } |
ea430986 | 332 | |
f00c3121 LP |
333 | if (!u) |
334 | return 0; | |
335 | ||
336 | *unit = u; | |
337 | return 1; | |
ea430986 LP |
338 | } |
339 | ||
f00c3121 | 340 | static int bus_unit_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 | 341 | Manager *m = userdata; |
ea430986 | 342 | |
718db961 LP |
343 | assert(bus); |
344 | assert(path); | |
345 | assert(interface); | |
346 | assert(found); | |
ea430986 LP |
347 | assert(m); |
348 | ||
f00c3121 | 349 | return find_unit(m, bus, path, (Unit**) found, error); |
ea430986 LP |
350 | } |
351 | ||
f00c3121 | 352 | static int bus_unit_interface_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 LP |
353 | Manager *m = userdata; |
354 | Unit *u; | |
f00c3121 | 355 | int r; |
ea430986 | 356 | |
718db961 LP |
357 | assert(bus); |
358 | assert(path); | |
359 | assert(interface); | |
360 | assert(found); | |
ea430986 LP |
361 | assert(m); |
362 | ||
f00c3121 LP |
363 | r = find_unit(m, bus, path, &u, error); |
364 | if (r <= 0) | |
365 | return r; | |
3df5bf61 | 366 | |
718db961 LP |
367 | if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface)) |
368 | return 0; | |
ea430986 | 369 | |
718db961 LP |
370 | *found = u; |
371 | return 1; | |
ea430986 LP |
372 | } |
373 | ||
f00c3121 | 374 | static int bus_unit_cgroup_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 LP |
375 | Manager *m = userdata; |
376 | Unit *u; | |
f00c3121 | 377 | int r; |
c1e1601e | 378 | |
718db961 LP |
379 | assert(bus); |
380 | assert(path); | |
381 | assert(interface); | |
382 | assert(found); | |
c1e1601e LP |
383 | assert(m); |
384 | ||
f00c3121 LP |
385 | r = find_unit(m, bus, path, &u, error); |
386 | if (r <= 0) | |
387 | return r; | |
05e343b7 | 388 | |
718db961 LP |
389 | if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface)) |
390 | return 0; | |
05e343b7 | 391 | |
718db961 LP |
392 | if (!unit_get_cgroup_context(u)) |
393 | return 0; | |
0034c15c | 394 | |
718db961 LP |
395 | *found = u; |
396 | return 1; | |
397 | } | |
0034c15c | 398 | |
f00c3121 | 399 | static int bus_cgroup_context_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 LP |
400 | Manager *m = userdata; |
401 | CGroupContext *c; | |
402 | Unit *u; | |
f00c3121 | 403 | int r; |
af25ec12 | 404 | |
718db961 LP |
405 | assert(bus); |
406 | assert(path); | |
407 | assert(interface); | |
408 | assert(found); | |
409 | assert(m); | |
0034c15c | 410 | |
f00c3121 LP |
411 | r = find_unit(m, bus, path, &u, error); |
412 | if (r <= 0) | |
413 | return r; | |
0034c15c | 414 | |
718db961 LP |
415 | if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface)) |
416 | return 0; | |
0034c15c | 417 | |
718db961 LP |
418 | c = unit_get_cgroup_context(u); |
419 | if (!c) | |
420 | return 0; | |
c1e1601e | 421 | |
718db961 LP |
422 | *found = c; |
423 | return 1; | |
424 | } | |
0034c15c | 425 | |
f00c3121 | 426 | static int bus_exec_context_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 LP |
427 | Manager *m = userdata; |
428 | ExecContext *c; | |
429 | Unit *u; | |
f00c3121 | 430 | int r; |
0034c15c | 431 | |
718db961 LP |
432 | assert(bus); |
433 | assert(path); | |
434 | assert(interface); | |
435 | assert(found); | |
436 | assert(m); | |
0034c15c | 437 | |
f00c3121 LP |
438 | r = find_unit(m, bus, path, &u, error); |
439 | if (r <= 0) | |
440 | return r; | |
0034c15c | 441 | |
718db961 LP |
442 | if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface)) |
443 | return 0; | |
0034c15c | 444 | |
718db961 LP |
445 | c = unit_get_exec_context(u); |
446 | if (!c) | |
447 | return 0; | |
0034c15c | 448 | |
718db961 LP |
449 | *found = c; |
450 | return 1; | |
c1e1601e LP |
451 | } |
452 | ||
f00c3121 | 453 | static int bus_kill_context_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
718db961 LP |
454 | Manager *m = userdata; |
455 | KillContext *c; | |
456 | Unit *u; | |
f00c3121 | 457 | int r; |
8e274523 | 458 | |
718db961 LP |
459 | assert(bus); |
460 | assert(path); | |
461 | assert(interface); | |
462 | assert(found); | |
8e274523 LP |
463 | assert(m); |
464 | ||
f00c3121 LP |
465 | r = find_unit(m, bus, path, &u, error); |
466 | if (r <= 0) | |
467 | return r; | |
8e274523 | 468 | |
718db961 LP |
469 | if (!streq_ptr(interface, UNIT_VTABLE(u)->bus_interface)) |
470 | return 0; | |
8e274523 | 471 | |
718db961 LP |
472 | c = unit_get_kill_context(u); |
473 | if (!c) | |
474 | return 0; | |
53c6a358 | 475 | |
718db961 LP |
476 | *found = c; |
477 | return 1; | |
478 | } | |
8e274523 | 479 | |
f00c3121 | 480 | static int bus_job_enumerate(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { |
718db961 LP |
481 | _cleanup_free_ char **l = NULL; |
482 | Manager *m = userdata; | |
483 | unsigned k = 0; | |
484 | Iterator i; | |
485 | Job *j; | |
8e274523 | 486 | |
718db961 LP |
487 | l = new0(char*, hashmap_size(m->jobs)+1); |
488 | if (!l) | |
489 | return -ENOMEM; | |
8e274523 | 490 | |
718db961 LP |
491 | HASHMAP_FOREACH(j, m->jobs, i) { |
492 | l[k] = job_dbus_path(j); | |
493 | if (!l[k]) | |
494 | return -ENOMEM; | |
5e8d1c9a | 495 | |
718db961 LP |
496 | k++; |
497 | } | |
5e8d1c9a | 498 | |
718db961 | 499 | assert(hashmap_size(m->jobs) == k); |
3c661fad | 500 | |
718db961 LP |
501 | *nodes = l; |
502 | l = NULL; | |
5e8d1c9a | 503 | |
718db961 LP |
504 | return k; |
505 | } | |
53c6a358 | 506 | |
f00c3121 | 507 | static int bus_unit_enumerate(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { |
718db961 LP |
508 | _cleanup_free_ char **l = NULL; |
509 | Manager *m = userdata; | |
510 | unsigned k = 0; | |
511 | Iterator i; | |
512 | Unit *u; | |
3c661fad | 513 | |
718db961 LP |
514 | l = new0(char*, hashmap_size(m->units)+1); |
515 | if (!l) | |
516 | return -ENOMEM; | |
53c6a358 | 517 | |
718db961 LP |
518 | HASHMAP_FOREACH(u, m->units, i) { |
519 | l[k] = unit_dbus_path(u); | |
520 | if (!l[k]) | |
521 | return -ENOMEM; | |
53c6a358 | 522 | |
718db961 | 523 | k++; |
3c661fad LP |
524 | } |
525 | ||
718db961 LP |
526 | *nodes = l; |
527 | l = NULL; | |
5e8d1c9a | 528 | |
718db961 | 529 | return k; |
5e8d1c9a LP |
530 | } |
531 | ||
718db961 LP |
532 | static int bus_setup_api_vtables(Manager *m, sd_bus *bus) { |
533 | UnitType t; | |
534 | int r; | |
5e8d1c9a | 535 | |
ea430986 | 536 | assert(m); |
718db961 | 537 | assert(bus); |
ea430986 | 538 | |
ad5b215d | 539 | #ifdef HAVE_SELINUX |
969987ea LP |
540 | r = sd_bus_add_filter(bus, selinux_filter, m); |
541 | if (r < 0) { | |
542 | log_error("Failed to add SELinux access filter: %s", strerror(-r)); | |
543 | return r; | |
544 | } | |
ad5b215d | 545 | #endif |
969987ea | 546 | |
718db961 LP |
547 | r = sd_bus_add_object_vtable(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", bus_manager_vtable, m); |
548 | if (r < 0) { | |
549 | log_error("Failed to register Manager vtable: %s", strerror(-r)); | |
550 | return r; | |
a16e1123 LP |
551 | } |
552 | ||
718db961 LP |
553 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/job", "org.freedesktop.systemd1.Job", bus_job_vtable, bus_job_find, m); |
554 | if (r < 0) { | |
555 | log_error("Failed to register Job vtable: %s", strerror(-r)); | |
556 | return r; | |
fd18e1f4 | 557 | } |
c1e1601e | 558 | |
718db961 LP |
559 | r = sd_bus_add_node_enumerator(bus, "/org/freedesktop/systemd1/job", bus_job_enumerate, m); |
560 | if (r < 0) { | |
561 | log_error("Failed to add job enumerator: %s", strerror(-r)); | |
562 | return r; | |
563 | } | |
61902ea3 | 564 | |
718db961 LP |
565 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", "org.freedesktop.systemd1.Unit", bus_unit_vtable, bus_unit_find, m); |
566 | if (r < 0) { | |
567 | log_error("Failed to register Unit vtable: %s", strerror(-r)); | |
568 | return r; | |
569 | } | |
61902ea3 | 570 | |
718db961 LP |
571 | r = sd_bus_add_node_enumerator(bus, "/org/freedesktop/systemd1/unit", bus_unit_enumerate, m); |
572 | if (r < 0) { | |
573 | log_error("Failed to add job enumerator: %s", strerror(-r)); | |
574 | return r; | |
575 | } | |
61902ea3 | 576 | |
718db961 LP |
577 | for (t = 0; t < _UNIT_TYPE_MAX; t++) { |
578 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, unit_vtable[t]->bus_vtable, bus_unit_interface_find, m); | |
579 | if (r < 0) { | |
580 | log_error("Failed to register type specific vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r)); | |
581 | return r; | |
582 | } | |
61902ea3 | 583 | |
718db961 LP |
584 | if (unit_vtable[t]->cgroup_context_offset > 0) { |
585 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_unit_cgroup_vtable, bus_unit_cgroup_find, m); | |
586 | if (r < 0) { | |
587 | log_error("Failed to register control group unit vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r)); | |
588 | return r; | |
589 | } | |
61902ea3 | 590 | |
718db961 LP |
591 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_cgroup_vtable, bus_cgroup_context_find, m); |
592 | if (r < 0) { | |
593 | log_error("Failed to register control group vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r)); | |
594 | return r; | |
595 | } | |
61902ea3 LP |
596 | } |
597 | ||
718db961 LP |
598 | if (unit_vtable[t]->exec_context_offset > 0) { |
599 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_exec_vtable, bus_exec_context_find, m); | |
600 | if (r < 0) { | |
601 | log_error("Failed to register execute vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r)); | |
602 | return r; | |
603 | } | |
604 | } | |
61902ea3 | 605 | |
718db961 LP |
606 | if (unit_vtable[t]->kill_context_offset > 0) { |
607 | r = sd_bus_add_fallback_vtable(bus, "/org/freedesktop/systemd1/unit", unit_vtable[t]->bus_interface, bus_kill_vtable, bus_kill_context_find, m); | |
608 | if (r < 0) { | |
609 | log_error("Failed to register kill vtable for %s: %s", unit_vtable[t]->bus_interface, strerror(-r)); | |
610 | return r; | |
611 | } | |
612 | } | |
61902ea3 LP |
613 | } |
614 | ||
718db961 | 615 | return 0; |
61902ea3 LP |
616 | } |
617 | ||
718db961 LP |
618 | static int bus_setup_disconnected_match(Manager *m, sd_bus *bus) { |
619 | int r; | |
61902ea3 | 620 | |
718db961 LP |
621 | assert(m); |
622 | assert(bus); | |
61902ea3 | 623 | |
718db961 LP |
624 | r = sd_bus_add_match( |
625 | bus, | |
27fc65e1 | 626 | "sender='org.freedesktop.DBus.Local'," |
718db961 LP |
627 | "type='signal'," |
628 | "path='/org/freedesktop/DBus/Local'," | |
629 | "interface='org.freedesktop.DBus.Local'," | |
630 | "member='Disconnected'", | |
631 | signal_disconnected, m); | |
05e343b7 | 632 | |
718db961 LP |
633 | if (r < 0) { |
634 | log_error("Failed to register match for Disconnected message: %s", strerror(-r)); | |
635 | return r; | |
05e343b7 LP |
636 | } |
637 | ||
718db961 | 638 | return 0; |
ea430986 LP |
639 | } |
640 | ||
718db961 LP |
641 | static int bus_on_connection(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
642 | _cleanup_bus_unref_ sd_bus *bus = NULL; | |
643 | _cleanup_close_ int nfd = -1; | |
6dded4c7 | 644 | Manager *m = userdata; |
718db961 LP |
645 | sd_id128_t id; |
646 | int r; | |
6dded4c7 | 647 | |
718db961 | 648 | assert(s); |
6dded4c7 LP |
649 | assert(m); |
650 | ||
718db961 LP |
651 | nfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK|SOCK_CLOEXEC); |
652 | if (nfd < 0) { | |
653 | log_warning("Failed to accept private connection, ignoring: %m"); | |
654 | return 0; | |
655 | } | |
6dded4c7 | 656 | |
718db961 LP |
657 | if (set_size(m->private_buses) >= CONNECTIONS_MAX) { |
658 | log_warning("Too many concurrent connections, refusing"); | |
659 | return 0; | |
660 | } | |
6dded4c7 | 661 | |
718db961 LP |
662 | r = set_ensure_allocated(&m->private_buses, trivial_hash_func, trivial_compare_func); |
663 | if (r < 0) { | |
664 | log_oom(); | |
665 | return 0; | |
666 | } | |
6dded4c7 | 667 | |
718db961 LP |
668 | r = sd_bus_new(&bus); |
669 | if (r < 0) { | |
670 | log_warning("Failed to allocate new private connection bus: %s", strerror(-r)); | |
671 | return 0; | |
672 | } | |
6dded4c7 | 673 | |
718db961 LP |
674 | r = sd_bus_set_fd(bus, nfd, nfd); |
675 | if (r < 0) { | |
676 | log_warning("Failed to set fd on new connection bus: %s", strerror(-r)); | |
677 | return 0; | |
678 | } | |
6dded4c7 | 679 | |
718db961 | 680 | nfd = -1; |
6dded4c7 | 681 | |
718db961 LP |
682 | r = bus_check_peercred(bus); |
683 | if (r < 0) { | |
684 | log_warning("Incoming private connection from unprivileged client, refusing: %s", strerror(-r)); | |
685 | return 0; | |
686 | } | |
6dded4c7 | 687 | |
718db961 | 688 | assert_se(sd_id128_randomize(&id) >= 0); |
6dded4c7 | 689 | |
718db961 LP |
690 | r = sd_bus_set_server(bus, 1, id); |
691 | if (r < 0) { | |
692 | log_warning("Failed to enable server support for new connection bus: %s", strerror(-r)); | |
693 | return 0; | |
694 | } | |
6dded4c7 | 695 | |
718db961 LP |
696 | r = sd_bus_start(bus); |
697 | if (r < 0) { | |
698 | log_warning("Failed to start new connection bus: %s", strerror(-r)); | |
699 | return 0; | |
6dded4c7 LP |
700 | } |
701 | ||
718db961 LP |
702 | r = sd_bus_attach_event(bus, m->event, SD_EVENT_PRIORITY_NORMAL); |
703 | if (r < 0) { | |
704 | log_warning("Failed to attach new connection bus to event loop: %s", strerror(-r)); | |
705 | return 0; | |
6dded4c7 LP |
706 | } |
707 | ||
718db961 LP |
708 | if (m->running_as == SYSTEMD_SYSTEM) { |
709 | /* When we run as system instance we get the Released | |
710 | * signal via a direct connection */ | |
711 | ||
712 | r = sd_bus_add_match( | |
713 | bus, | |
714 | "type='signal'," | |
715 | "interface='org.freedesktop.systemd1.Agent'," | |
716 | "member='Released'," | |
717 | "path='/org/freedesktop/systemd1/agent'", | |
718 | signal_agent_released, m); | |
719 | ||
720 | if (r < 0) { | |
721 | log_warning("Failed to register Released match on new connection bus: %s", strerror(-r)); | |
722 | return 0; | |
723 | } | |
724 | } | |
6dded4c7 | 725 | |
718db961 LP |
726 | r = bus_setup_disconnected_match(m, bus); |
727 | if (r < 0) | |
728 | return 0; | |
6dded4c7 | 729 | |
718db961 LP |
730 | r = bus_setup_api_vtables(m, bus); |
731 | if (r < 0) { | |
732 | log_warning("Failed to set up API vtables on new connection bus: %s", strerror(-r)); | |
733 | return 0; | |
734 | } | |
6dded4c7 | 735 | |
718db961 LP |
736 | r = set_put(m->private_buses, bus); |
737 | if (r < 0) { | |
738 | log_warning("Failed to add new conenction bus to set: %s", strerror(-r)); | |
739 | return 0; | |
6dded4c7 LP |
740 | } |
741 | ||
718db961 | 742 | bus = NULL; |
6dded4c7 | 743 | |
718db961 | 744 | log_debug("Accepted new private connection."); |
6dded4c7 | 745 | |
8e274523 LP |
746 | return 0; |
747 | } | |
748 | ||
718db961 | 749 | static int bus_list_names(Manager *m, sd_bus *bus) { |
0e7be129 LP |
750 | _cleanup_strv_free_ char **names = NULL; |
751 | char **i; | |
718db961 | 752 | int r; |
5e8d1c9a LP |
753 | |
754 | assert(m); | |
718db961 | 755 | assert(bus); |
5e8d1c9a | 756 | |
0e7be129 | 757 | r = sd_bus_list_names(bus, &names, NULL); |
718db961 | 758 | if (r < 0) { |
0e7be129 | 759 | log_error("Failed to get initial list of names: %s", strerror(-r)); |
718db961 | 760 | return r; |
5e8d1c9a LP |
761 | } |
762 | ||
718db961 LP |
763 | /* This is a bit hacky, we say the owner of the name is the |
764 | * name itself, because we don't want the extra traffic to | |
765 | * figure out the real owner. */ | |
0e7be129 LP |
766 | STRV_FOREACH(i, names) |
767 | manager_dispatch_bus_name_owner_changed(m, *i, NULL, *i); | |
5e8d1c9a | 768 | |
718db961 | 769 | return 0; |
5e8d1c9a LP |
770 | } |
771 | ||
718db961 LP |
772 | static int bus_setup_api(Manager *m, sd_bus *bus) { |
773 | int r; | |
f278026d | 774 | |
718db961 LP |
775 | assert(m); |
776 | assert(bus); | |
c1e1601e | 777 | |
718db961 LP |
778 | r = bus_setup_api_vtables(m, bus); |
779 | if (r < 0) | |
780 | return r; | |
cbd37330 | 781 | |
718db961 LP |
782 | r = sd_bus_add_match( |
783 | bus, | |
784 | "type='signal'," | |
785 | "sender='org.freedesktop.DBus'," | |
786 | "path='/org/freedesktop/DBus'," | |
787 | "interface='org.freedesktop.DBus'," | |
788 | "member='NameOwnerChanged'", | |
789 | signal_name_owner_changed, m); | |
790 | if (r < 0) | |
791 | log_warning("Failed to subscribe to NameOwnerChanged signal: %s", strerror(-r)); | |
792 | ||
793 | r = sd_bus_add_match( | |
794 | bus, | |
795 | "type='signal'," | |
796 | "sender='org.freedesktop.DBus'," | |
797 | "path='/org/freedesktop/DBus'," | |
798 | "interface='org.freedesktop.systemd1.Activator'," | |
799 | "member='ActivationRequest'", | |
800 | signal_activation_request, m); | |
801 | if (r < 0) | |
802 | log_warning("Failed to subscribe to activation signal: %s", strerror(-r)); | |
cbd37330 | 803 | |
718db961 LP |
804 | /* Allow replacing of our name, to ease implementation of |
805 | * reexecution, where we keep the old connection open until | |
806 | * after the new connection is set up and the name installed | |
807 | * to allow clients to synchronously wait for reexecution to | |
808 | * finish */ | |
29a07cdb | 809 | r = sd_bus_request_name(bus,"org.freedesktop.systemd1", SD_BUS_NAME_REPLACE_EXISTING|SD_BUS_NAME_ALLOW_REPLACEMENT); |
718db961 LP |
810 | if (r < 0) { |
811 | log_error("Failed to register name: %s", strerror(-r)); | |
812 | return r; | |
813 | } | |
53c6a358 | 814 | |
718db961 | 815 | bus_list_names(m, bus); |
f278026d | 816 | |
718db961 | 817 | log_debug("Successfully connected to API bus."); |
f278026d LP |
818 | return 0; |
819 | } | |
820 | ||
718db961 LP |
821 | static int bus_init_api(Manager *m) { |
822 | _cleanup_bus_unref_ sd_bus *bus = NULL; | |
f278026d LP |
823 | int r; |
824 | ||
718db961 LP |
825 | if (m->api_bus) |
826 | return 0; | |
cbd37330 | 827 | |
718db961 LP |
828 | /* The API and system bus is the same if we are running in system mode */ |
829 | if (m->running_as == SYSTEMD_SYSTEM && m->system_bus) | |
830 | bus = sd_bus_ref(m->system_bus); | |
831 | else { | |
832 | if (m->running_as == SYSTEMD_SYSTEM) | |
833 | r = sd_bus_open_system(&bus); | |
834 | else | |
835 | r = sd_bus_open_user(&bus); | |
cbd37330 | 836 | |
718db961 LP |
837 | if (r < 0) { |
838 | log_debug("Failed to connect to API bus, retrying later..."); | |
839 | return 0; | |
cbd37330 MS |
840 | } |
841 | ||
718db961 LP |
842 | r = sd_bus_attach_event(bus, m->event, SD_EVENT_PRIORITY_NORMAL); |
843 | if (r < 0) { | |
844 | log_error("Failed to attach API bus to event loop: %s", strerror(-r)); | |
845 | return 0; | |
cbd37330 MS |
846 | } |
847 | ||
718db961 LP |
848 | r = bus_setup_disconnected_match(m, bus); |
849 | if (r < 0) | |
850 | return 0; | |
cbd37330 MS |
851 | } |
852 | ||
718db961 | 853 | r = bus_setup_api(m, bus); |
cbd37330 | 854 | if (r < 0) { |
718db961 LP |
855 | log_error("Failed to set up API bus: %s", strerror(-r)); |
856 | return 0; | |
cbd37330 | 857 | } |
cbd37330 | 858 | |
718db961 LP |
859 | m->api_bus = bus; |
860 | bus = NULL; | |
cbd37330 MS |
861 | |
862 | return 0; | |
cbd37330 MS |
863 | } |
864 | ||
718db961 LP |
865 | static int bus_setup_system(Manager *m, sd_bus *bus) { |
866 | int r; | |
cbd37330 | 867 | |
718db961 LP |
868 | assert(m); |
869 | assert(bus); | |
cbd37330 | 870 | |
718db961 LP |
871 | if (m->running_as == SYSTEMD_SYSTEM) |
872 | return 0; | |
cbd37330 | 873 | |
718db961 LP |
874 | /* If we are a user instance we get the Released message via |
875 | * the system bus */ | |
876 | r = sd_bus_add_match( | |
877 | bus, | |
878 | "type='signal'," | |
879 | "interface='org.freedesktop.systemd1.Agent'," | |
880 | "member='Released'," | |
881 | "path='/org/freedesktop/systemd1/agent'", | |
882 | signal_agent_released, m); | |
4dd1de72 | 883 | |
718db961 LP |
884 | if (r < 0) |
885 | log_warning("Failed to register Released match on system bus: %s", strerror(-r)); | |
886 | ||
887 | log_debug("Successfully connected to system bus."); | |
888 | return 0; | |
cbd37330 MS |
889 | } |
890 | ||
891 | static int bus_init_system(Manager *m) { | |
718db961 | 892 | _cleanup_bus_unref_ sd_bus *bus = NULL; |
cbd37330 MS |
893 | int r; |
894 | ||
895 | if (m->system_bus) | |
896 | return 0; | |
897 | ||
718db961 LP |
898 | /* The API and system bus is the same if we are running in system mode */ |
899 | if (m->running_as == SYSTEMD_SYSTEM && m->api_bus) { | |
900 | m->system_bus = sd_bus_ref(m->api_bus); | |
901 | return 0; | |
9014a8bd | 902 | } |
8e274523 | 903 | |
718db961 LP |
904 | r = sd_bus_open_system(&bus); |
905 | if (r < 0) { | |
906 | log_debug("Failed to connect to system bus, retrying later..."); | |
907 | return 0; | |
908 | } | |
cbd37330 | 909 | |
718db961 | 910 | r = bus_setup_disconnected_match(m, bus); |
cbd37330 | 911 | if (r < 0) |
cbd37330 MS |
912 | return 0; |
913 | ||
718db961 LP |
914 | r = sd_bus_attach_event(bus, m->event, SD_EVENT_PRIORITY_NORMAL); |
915 | if (r < 0) { | |
916 | log_error("Failed to attach system bus to event loop: %s", strerror(-r)); | |
cbd37330 MS |
917 | return 0; |
918 | } | |
919 | ||
718db961 LP |
920 | r = bus_setup_system(m, bus); |
921 | if (r < 0) { | |
922 | log_error("Fauiled to set up system bus: %s", strerror(-r)); | |
923 | return 0; | |
cbd37330 MS |
924 | } |
925 | ||
718db961 LP |
926 | m->system_bus = bus; |
927 | bus = NULL; | |
cbd37330 MS |
928 | |
929 | return 0; | |
5e8d1c9a LP |
930 | } |
931 | ||
932 | static int bus_init_private(Manager *m) { | |
718db961 LP |
933 | _cleanup_close_ int fd = -1; |
934 | union sockaddr_union sa = { | |
935 | .un.sun_family = AF_UNIX | |
5e8d1c9a | 936 | }; |
718db961 LP |
937 | sd_event_source *s; |
938 | socklen_t salen; | |
939 | int r; | |
5e8d1c9a LP |
940 | |
941 | assert(m); | |
942 | ||
718db961 | 943 | if (m->private_listen_fd >= 0) |
5e8d1c9a LP |
944 | return 0; |
945 | ||
a6aa8912 LP |
946 | /* We don't need the private socket if we have kdbus */ |
947 | if (m->kdbus_fd >= 0) | |
948 | return 0; | |
949 | ||
67445f4e | 950 | if (m->running_as == SYSTEMD_SYSTEM) { |
be81bfc4 LP |
951 | |
952 | /* We want the private bus only when running as init */ | |
953 | if (getpid() != 1) | |
954 | return 0; | |
955 | ||
718db961 LP |
956 | strcpy(sa.un.sun_path, "/run/systemd/private"); |
957 | salen = offsetof(union sockaddr_union, un.sun_path) + sizeof("/run/systemd/private") - 1; | |
be81bfc4 | 958 | } else { |
718db961 LP |
959 | size_t left = sizeof(sa.un.sun_path); |
960 | char *p = sa.un.sun_path; | |
be81bfc4 | 961 | const char *e; |
be81bfc4 | 962 | |
4db17f29 | 963 | e = secure_getenv("XDG_RUNTIME_DIR"); |
718db961 LP |
964 | if (!e) { |
965 | log_error("Failed to determine XDG_RUNTIME_DIR"); | |
966 | return -EHOSTDOWN; | |
be81bfc4 LP |
967 | } |
968 | ||
718db961 LP |
969 | left = strpcpy(&p, left, e); |
970 | left = strpcpy(&p, left, "/systemd/private"); | |
92f30349 | 971 | |
718db961 | 972 | salen = sizeof(sa.un) - left; |
92f30349 | 973 | |
718db961 | 974 | mkdir_parents_label(sa.un.sun_path, 0755); |
be81bfc4 | 975 | } |
5e8d1c9a | 976 | |
718db961 LP |
977 | unlink(sa.un.sun_path); |
978 | ||
979 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
980 | if (fd < 0) { | |
981 | log_error("Failed to allocate private socket: %m"); | |
982 | return -errno; | |
5e8d1c9a LP |
983 | } |
984 | ||
718db961 LP |
985 | r = bind(fd, &sa.sa, salen); |
986 | if (r < 0) { | |
987 | log_error("Failed to bind private socket: %m"); | |
988 | return -errno; | |
5e8d1c9a LP |
989 | } |
990 | ||
718db961 LP |
991 | r = listen(fd, SOMAXCONN); |
992 | if (r < 0) { | |
993 | log_error("Failed to make private socket listening: %m"); | |
994 | return -errno; | |
995 | } | |
5e8d1c9a | 996 | |
151b9b96 | 997 | r = sd_event_add_io(m->event, &s, fd, EPOLLIN, bus_on_connection, m); |
718db961 LP |
998 | if (r < 0) { |
999 | log_error("Failed to allocate event source: %s", strerror(-r)); | |
1000 | return r; | |
1001 | } | |
5e8d1c9a | 1002 | |
718db961 LP |
1003 | m->private_listen_fd = fd; |
1004 | m->private_listen_event_source = s; | |
1005 | fd = -1; | |
5e8d1c9a | 1006 | |
718db961 | 1007 | log_debug("Successfully created private D-Bus server."); |
5e8d1c9a | 1008 | |
718db961 | 1009 | return 0; |
5e8d1c9a LP |
1010 | } |
1011 | ||
3996fbe2 | 1012 | int bus_init(Manager *m, bool try_bus_connect) { |
5e8d1c9a LP |
1013 | int r; |
1014 | ||
3996fbe2 | 1015 | if (try_bus_connect) { |
718db961 LP |
1016 | r = bus_init_system(m); |
1017 | if (r < 0) | |
1018 | return r; | |
1019 | ||
1020 | r = bus_init_api(m); | |
1021 | if (r < 0) | |
3996fbe2 LP |
1022 | return r; |
1023 | } | |
1024 | ||
6fa48533 LP |
1025 | r = bus_init_private(m); |
1026 | if (r < 0) | |
5e8d1c9a | 1027 | return r; |
f278026d | 1028 | |
ea430986 LP |
1029 | return 0; |
1030 | } | |
1031 | ||
718db961 | 1032 | static void destroy_bus(Manager *m, sd_bus **bus) { |
a567261a | 1033 | Iterator i; |
718db961 | 1034 | Job *j; |
a567261a | 1035 | |
718db961 LP |
1036 | assert(m); |
1037 | assert(bus); | |
5e8d1c9a | 1038 | |
718db961 | 1039 | if (!*bus) |
cbd37330 | 1040 | return; |
f278026d | 1041 | |
718db961 LP |
1042 | /* Get rid of tracked clients on this bus */ |
1043 | bus_client_untrack_bus(m->subscribed, *bus); | |
1044 | HASHMAP_FOREACH(j, m->jobs, i) | |
1045 | bus_client_untrack_bus(j->subscribed, *bus); | |
c1e1601e | 1046 | |
718db961 LP |
1047 | /* Get rid of queued message on this bus */ |
1048 | if (m->queued_message_bus == *bus) { | |
1049 | m->queued_message_bus = sd_bus_unref(m->queued_message_bus); | |
05e343b7 | 1050 | |
718db961 LP |
1051 | if (m->queued_message) |
1052 | m->queued_message = sd_bus_message_unref(m->queued_message); | |
cbd37330 | 1053 | } |
f278026d | 1054 | |
718db961 LP |
1055 | /* Possibly flush unwritten data, but only if we are |
1056 | * unprivileged, since we don't want to sync here */ | |
1057 | if (m->running_as != SYSTEMD_SYSTEM) | |
1058 | sd_bus_flush(*bus); | |
5e8d1c9a | 1059 | |
718db961 LP |
1060 | /* And destroy the object */ |
1061 | sd_bus_close(*bus); | |
1062 | *bus = sd_bus_unref(*bus); | |
5e8d1c9a LP |
1063 | } |
1064 | ||
1065 | void bus_done(Manager *m) { | |
718db961 | 1066 | sd_bus *b; |
05e343b7 LP |
1067 | |
1068 | assert(m); | |
05e343b7 | 1069 | |
718db961 LP |
1070 | if (m->api_bus) |
1071 | destroy_bus(m, &m->api_bus); | |
1072 | if (m->system_bus) | |
1073 | destroy_bus(m, &m->system_bus); | |
1074 | while ((b = set_steal_first(m->private_buses))) | |
1075 | destroy_bus(m, &b); | |
05e343b7 | 1076 | |
718db961 LP |
1077 | set_free(m->private_buses); |
1078 | set_free(m->subscribed); | |
05e343b7 | 1079 | |
718db961 LP |
1080 | if (m->private_listen_event_source) |
1081 | m->private_listen_event_source = sd_event_source_unref(m->private_listen_event_source); | |
05e343b7 | 1082 | |
718db961 LP |
1083 | if (m->private_listen_fd >= 0) { |
1084 | close_nointr_nofail(m->private_listen_fd); | |
1085 | m->private_listen_fd = -1; | |
05e343b7 | 1086 | } |
a567261a | 1087 | } |
b23de6af LP |
1088 | |
1089 | int bus_fdset_add_all(Manager *m, FDSet *fds) { | |
1090 | Iterator i; | |
718db961 LP |
1091 | sd_bus *b; |
1092 | int fd; | |
b23de6af LP |
1093 | |
1094 | assert(m); | |
1095 | assert(fds); | |
1096 | ||
1097 | /* When we are about to reexecute we add all D-Bus fds to the | |
1098 | * set to pass over to the newly executed systemd. They won't | |
718db961 | 1099 | * be used there however, except thatt they are closed at the |
b23de6af | 1100 | * very end of deserialization, those making it possible for |
44143309 | 1101 | * clients to synchronously wait for systemd to reexec by |
b23de6af LP |
1102 | * simply waiting for disconnection */ |
1103 | ||
718db961 LP |
1104 | if (m->api_bus) { |
1105 | fd = sd_bus_get_fd(m->api_bus); | |
1106 | if (fd >= 0) { | |
b23de6af | 1107 | fd = fdset_put_dup(fds, fd); |
b23de6af LP |
1108 | if (fd < 0) |
1109 | return fd; | |
1110 | } | |
1111 | } | |
1112 | ||
718db961 LP |
1113 | SET_FOREACH(b, m->private_buses, i) { |
1114 | fd = sd_bus_get_fd(b); | |
1115 | if (fd >= 0) { | |
b23de6af | 1116 | fd = fdset_put_dup(fds, fd); |
b23de6af LP |
1117 | if (fd < 0) |
1118 | return fd; | |
1119 | } | |
1120 | } | |
1121 | ||
718db961 LP |
1122 | /* We don't offer any APIs on the system bus (well, unless it |
1123 | * is the same as the API bus) hence we don't bother with it | |
1124 | * here */ | |
6fa48533 | 1125 | |
718db961 | 1126 | return 0; |
6fa48533 LP |
1127 | } |
1128 | ||
1129 | void bus_serialize(Manager *m, FILE *f) { | |
6fa48533 LP |
1130 | assert(m); |
1131 | assert(f); | |
1132 | ||
718db961 | 1133 | bus_client_track_serialize(m, f, m->subscribed); |
6fa48533 LP |
1134 | } |
1135 | ||
1136 | int bus_deserialize_item(Manager *m, const char *line) { | |
6fa48533 LP |
1137 | assert(m); |
1138 | assert(line); | |
1139 | ||
718db961 | 1140 | return bus_client_track_deserialize_item(m, &m->subscribed, line); |
6fa48533 | 1141 | } |