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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a7334b09 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2010 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
8 | under the terms of the GNU Lesser General Public License as published by |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
10 | (at your option) any later version. |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 15 | Lesser General Public License for more details. |
a7334b09 | 16 | |
5430f7f2 | 17 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
19 | ***/ | |
20 | ||
718db961 | 21 | #include "sd-bus.h" |
07630cea | 22 | |
b5efdb8a | 23 | #include "alloc-util.h" |
906c06f6 | 24 | #include "bpf-firewall.h" |
07630cea LP |
25 | #include "bus-common-errors.h" |
26 | #include "cgroup-util.h" | |
faa781cf | 27 | #include "condition.h" |
c5a97ed1 | 28 | #include "dbus-job.h" |
8752c575 | 29 | #include "dbus-unit.h" |
faa781cf | 30 | #include "dbus-util.h" |
07630cea | 31 | #include "dbus.h" |
291d565a | 32 | #include "fd-util.h" |
8752c575 | 33 | #include "locale-util.h" |
ea430986 | 34 | #include "log.h" |
faa781cf | 35 | #include "path-util.h" |
291d565a | 36 | #include "process-util.h" |
e2417e41 | 37 | #include "selinux-access.h" |
6eb7c172 | 38 | #include "signal-util.h" |
efdb0237 | 39 | #include "special.h" |
07630cea LP |
40 | #include "string-util.h" |
41 | #include "strv.h" | |
ee104e11 | 42 | #include "user-util.h" |
faa781cf | 43 | #include "web-util.h" |
718db961 | 44 | |
5afe510c | 45 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_collect_mode, collect_mode, CollectMode); |
718db961 | 46 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState); |
d420282b | 47 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode); |
87a47f99 | 48 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_emergency_action, emergency_action, EmergencyAction); |
718db961 LP |
49 | |
50 | static int property_get_names( | |
51 | sd_bus *bus, | |
52 | const char *path, | |
53 | const char *interface, | |
54 | const char *property, | |
55 | sd_bus_message *reply, | |
ebcf1f97 LP |
56 | void *userdata, |
57 | sd_bus_error *error) { | |
718db961 LP |
58 | |
59 | Unit *u = userdata; | |
60 | Iterator i; | |
61 | const char *t; | |
62 | int r; | |
ea430986 | 63 | |
718db961 LP |
64 | assert(bus); |
65 | assert(reply); | |
66 | assert(u); | |
4139c1b2 | 67 | |
718db961 LP |
68 | r = sd_bus_message_open_container(reply, 'a', "s"); |
69 | if (r < 0) | |
70 | return r; | |
4139c1b2 | 71 | |
718db961 LP |
72 | SET_FOREACH(t, u->names, i) { |
73 | r = sd_bus_message_append(reply, "s", t); | |
74 | if (r < 0) | |
75 | return r; | |
76 | } | |
4139c1b2 | 77 | |
718db961 | 78 | return sd_bus_message_close_container(reply); |
4139c1b2 LP |
79 | } |
80 | ||
718db961 LP |
81 | static int property_get_following( |
82 | sd_bus *bus, | |
83 | const char *path, | |
84 | const char *interface, | |
85 | const char *property, | |
86 | sd_bus_message *reply, | |
ebcf1f97 LP |
87 | void *userdata, |
88 | sd_bus_error *error) { | |
718db961 LP |
89 | |
90 | Unit *u = userdata, *f; | |
8fe914ec | 91 | |
718db961 LP |
92 | assert(bus); |
93 | assert(reply); | |
8fe914ec LP |
94 | assert(u); |
95 | ||
a7f241db | 96 | f = unit_following(u); |
718db961 | 97 | return sd_bus_message_append(reply, "s", f ? f->id : ""); |
8fe914ec LP |
98 | } |
99 | ||
718db961 LP |
100 | static int property_get_dependencies( |
101 | sd_bus *bus, | |
102 | const char *path, | |
103 | const char *interface, | |
104 | const char *property, | |
105 | sd_bus_message *reply, | |
ebcf1f97 LP |
106 | void *userdata, |
107 | sd_bus_error *error) { | |
4ec9a8a4 | 108 | |
eef85c4a | 109 | Hashmap *h = *(Hashmap**) userdata; |
5301be81 | 110 | Iterator j; |
718db961 | 111 | Unit *u; |
eef85c4a | 112 | void *v; |
718db961 | 113 | int r; |
5301be81 | 114 | |
718db961 LP |
115 | assert(bus); |
116 | assert(reply); | |
5301be81 | 117 | |
718db961 LP |
118 | r = sd_bus_message_open_container(reply, 'a', "s"); |
119 | if (r < 0) | |
120 | return r; | |
5301be81 | 121 | |
eef85c4a | 122 | HASHMAP_FOREACH_KEY(v, u, h, j) { |
718db961 LP |
123 | r = sd_bus_message_append(reply, "s", u->id); |
124 | if (r < 0) | |
125 | return r; | |
126 | } | |
5301be81 | 127 | |
718db961 | 128 | return sd_bus_message_close_container(reply); |
5301be81 LP |
129 | } |
130 | ||
f32b43bd LP |
131 | static int property_get_obsolete_dependencies( |
132 | sd_bus *bus, | |
133 | const char *path, | |
134 | const char *interface, | |
135 | const char *property, | |
136 | sd_bus_message *reply, | |
137 | void *userdata, | |
138 | sd_bus_error *error) { | |
139 | ||
140 | assert(bus); | |
141 | assert(reply); | |
142 | ||
143 | /* For dependency types we don't support anymore always return an empty array */ | |
144 | return sd_bus_message_append(reply, "as", 0); | |
145 | } | |
146 | ||
99c14018 YW |
147 | static int property_get_requires_mounts_for( |
148 | sd_bus *bus, | |
149 | const char *path, | |
150 | const char *interface, | |
151 | const char *property, | |
152 | sd_bus_message *reply, | |
153 | void *userdata, | |
154 | sd_bus_error *error) { | |
155 | ||
f6e11b39 | 156 | Hashmap *h = *(Hashmap**) userdata; |
99c14018 | 157 | const char *p; |
f6e11b39 | 158 | Iterator j; |
99c14018 YW |
159 | void *v; |
160 | int r; | |
161 | ||
162 | assert(bus); | |
163 | assert(reply); | |
164 | ||
165 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
166 | if (r < 0) | |
167 | return r; | |
168 | ||
169 | HASHMAP_FOREACH_KEY(v, p, h, j) { | |
170 | r = sd_bus_message_append(reply, "s", p); | |
171 | if (r < 0) | |
172 | return r; | |
173 | } | |
174 | ||
175 | return sd_bus_message_close_container(reply); | |
176 | } | |
177 | ||
718db961 LP |
178 | static int property_get_description( |
179 | sd_bus *bus, | |
180 | const char *path, | |
181 | const char *interface, | |
182 | const char *property, | |
183 | sd_bus_message *reply, | |
ebcf1f97 LP |
184 | void *userdata, |
185 | sd_bus_error *error) { | |
ea430986 | 186 | |
718db961 | 187 | Unit *u = userdata; |
ea430986 | 188 | |
718db961 LP |
189 | assert(bus); |
190 | assert(reply); | |
191 | assert(u); | |
ea430986 | 192 | |
718db961 | 193 | return sd_bus_message_append(reply, "s", unit_description(u)); |
ea430986 LP |
194 | } |
195 | ||
718db961 LP |
196 | static int property_get_active_state( |
197 | sd_bus *bus, | |
198 | const char *path, | |
199 | const char *interface, | |
200 | const char *property, | |
201 | sd_bus_message *reply, | |
ebcf1f97 LP |
202 | void *userdata, |
203 | sd_bus_error *error) { | |
ea430986 | 204 | |
718db961 | 205 | Unit *u = userdata; |
ea430986 | 206 | |
718db961 LP |
207 | assert(bus); |
208 | assert(reply); | |
ea430986 LP |
209 | assert(u); |
210 | ||
718db961 | 211 | return sd_bus_message_append(reply, "s", unit_active_state_to_string(unit_active_state(u))); |
ea430986 LP |
212 | } |
213 | ||
718db961 LP |
214 | static int property_get_sub_state( |
215 | sd_bus *bus, | |
216 | const char *path, | |
217 | const char *interface, | |
218 | const char *property, | |
219 | sd_bus_message *reply, | |
ebcf1f97 LP |
220 | void *userdata, |
221 | sd_bus_error *error) { | |
10a94420 | 222 | |
718db961 | 223 | Unit *u = userdata; |
10a94420 | 224 | |
718db961 LP |
225 | assert(bus); |
226 | assert(reply); | |
227 | assert(u); | |
10a94420 | 228 | |
718db961 | 229 | return sd_bus_message_append(reply, "s", unit_sub_state_to_string(u)); |
10a94420 LP |
230 | } |
231 | ||
d2dc52db LP |
232 | static int property_get_unit_file_preset( |
233 | sd_bus *bus, | |
234 | const char *path, | |
235 | const char *interface, | |
236 | const char *property, | |
237 | sd_bus_message *reply, | |
238 | void *userdata, | |
239 | sd_bus_error *error) { | |
240 | ||
241 | Unit *u = userdata; | |
242 | int r; | |
243 | ||
244 | assert(bus); | |
245 | assert(reply); | |
246 | assert(u); | |
247 | ||
248 | r = unit_get_unit_file_preset(u); | |
249 | ||
250 | return sd_bus_message_append(reply, "s", | |
251 | r < 0 ? "": | |
252 | r > 0 ? "enabled" : "disabled"); | |
253 | } | |
254 | ||
718db961 LP |
255 | static int property_get_unit_file_state( |
256 | sd_bus *bus, | |
257 | const char *path, | |
258 | const char *interface, | |
259 | const char *property, | |
260 | sd_bus_message *reply, | |
ebcf1f97 LP |
261 | void *userdata, |
262 | sd_bus_error *error) { | |
a4375746 | 263 | |
718db961 | 264 | Unit *u = userdata; |
a4375746 | 265 | |
718db961 LP |
266 | assert(bus); |
267 | assert(reply); | |
268 | assert(u); | |
a4375746 | 269 | |
76445832 | 270 | return sd_bus_message_append(reply, "s", unit_file_state_to_string(unit_get_unit_file_state(u))); |
a4375746 LP |
271 | } |
272 | ||
718db961 LP |
273 | static int property_get_can_start( |
274 | sd_bus *bus, | |
275 | const char *path, | |
276 | const char *interface, | |
277 | const char *property, | |
278 | sd_bus_message *reply, | |
ebcf1f97 LP |
279 | void *userdata, |
280 | sd_bus_error *error) { | |
38131695 | 281 | |
718db961 | 282 | Unit *u = userdata; |
b5e9dba8 | 283 | |
718db961 LP |
284 | assert(bus); |
285 | assert(reply); | |
286 | assert(u); | |
b5e9dba8 | 287 | |
718db961 | 288 | return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_start); |
b5e9dba8 LP |
289 | } |
290 | ||
718db961 LP |
291 | static int property_get_can_stop( |
292 | sd_bus *bus, | |
293 | const char *path, | |
294 | const char *interface, | |
295 | const char *property, | |
296 | sd_bus_message *reply, | |
ebcf1f97 LP |
297 | void *userdata, |
298 | sd_bus_error *error) { | |
718db961 LP |
299 | |
300 | Unit *u = userdata; | |
b5e9dba8 | 301 | |
718db961 LP |
302 | assert(bus); |
303 | assert(reply); | |
b5e9dba8 LP |
304 | assert(u); |
305 | ||
f5869324 | 306 | return sd_bus_message_append(reply, "b", unit_can_stop(u) && !u->refuse_manual_stop); |
38131695 LP |
307 | } |
308 | ||
718db961 LP |
309 | static int property_get_can_reload( |
310 | sd_bus *bus, | |
311 | const char *path, | |
312 | const char *interface, | |
313 | const char *property, | |
314 | sd_bus_message *reply, | |
ebcf1f97 LP |
315 | void *userdata, |
316 | sd_bus_error *error) { | |
38131695 | 317 | |
718db961 | 318 | Unit *u = userdata; |
38131695 | 319 | |
718db961 LP |
320 | assert(bus); |
321 | assert(reply); | |
322 | assert(u); | |
38131695 | 323 | |
718db961 | 324 | return sd_bus_message_append(reply, "b", unit_can_reload(u)); |
38131695 LP |
325 | } |
326 | ||
718db961 LP |
327 | static int property_get_can_isolate( |
328 | sd_bus *bus, | |
329 | const char *path, | |
330 | const char *interface, | |
331 | const char *property, | |
332 | sd_bus_message *reply, | |
ebcf1f97 LP |
333 | void *userdata, |
334 | sd_bus_error *error) { | |
2528a7a6 | 335 | |
718db961 | 336 | Unit *u = userdata; |
2528a7a6 | 337 | |
718db961 LP |
338 | assert(bus); |
339 | assert(reply); | |
340 | assert(u); | |
2528a7a6 | 341 | |
718db961 | 342 | return sd_bus_message_append(reply, "b", unit_can_isolate(u) && !u->refuse_manual_start); |
2528a7a6 LP |
343 | } |
344 | ||
718db961 LP |
345 | static int property_get_job( |
346 | sd_bus *bus, | |
347 | const char *path, | |
348 | const char *interface, | |
349 | const char *property, | |
350 | sd_bus_message *reply, | |
ebcf1f97 LP |
351 | void *userdata, |
352 | sd_bus_error *error) { | |
718db961 | 353 | |
f93891f3 | 354 | _cleanup_free_ char *p = NULL; |
718db961 | 355 | Unit *u = userdata; |
38131695 | 356 | |
718db961 LP |
357 | assert(bus); |
358 | assert(reply); | |
38131695 LP |
359 | assert(u); |
360 | ||
718db961 LP |
361 | if (!u->job) |
362 | return sd_bus_message_append(reply, "(uo)", 0, "/"); | |
38131695 | 363 | |
718db961 LP |
364 | p = job_dbus_path(u->job); |
365 | if (!p) | |
366 | return -ENOMEM; | |
38131695 | 367 | |
718db961 LP |
368 | return sd_bus_message_append(reply, "(uo)", u->job->id, p); |
369 | } | |
38131695 | 370 | |
718db961 LP |
371 | static int property_get_need_daemon_reload( |
372 | sd_bus *bus, | |
373 | const char *path, | |
374 | const char *interface, | |
375 | const char *property, | |
376 | sd_bus_message *reply, | |
ebcf1f97 LP |
377 | void *userdata, |
378 | sd_bus_error *error) { | |
38131695 | 379 | |
718db961 | 380 | Unit *u = userdata; |
38131695 | 381 | |
718db961 LP |
382 | assert(bus); |
383 | assert(reply); | |
384 | assert(u); | |
38131695 | 385 | |
718db961 | 386 | return sd_bus_message_append(reply, "b", unit_need_daemon_reload(u)); |
38131695 LP |
387 | } |
388 | ||
718db961 LP |
389 | static int property_get_conditions( |
390 | sd_bus *bus, | |
391 | const char *path, | |
392 | const char *interface, | |
393 | const char *property, | |
394 | sd_bus_message *reply, | |
ebcf1f97 LP |
395 | void *userdata, |
396 | sd_bus_error *error) { | |
45fb0699 | 397 | |
59fccdc5 LP |
398 | const char *(*to_string)(ConditionType type) = NULL; |
399 | Condition **list = userdata, *c; | |
718db961 | 400 | int r; |
45fb0699 | 401 | |
718db961 LP |
402 | assert(bus); |
403 | assert(reply); | |
59fccdc5 LP |
404 | assert(list); |
405 | ||
406 | to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string; | |
45fb0699 | 407 | |
718db961 LP |
408 | r = sd_bus_message_open_container(reply, 'a', "(sbbsi)"); |
409 | if (r < 0) | |
410 | return r; | |
45fb0699 | 411 | |
59fccdc5 | 412 | LIST_FOREACH(conditions, c, *list) { |
cc50ef13 LP |
413 | int tristate; |
414 | ||
415 | tristate = | |
416 | c->result == CONDITION_UNTESTED ? 0 : | |
417 | c->result == CONDITION_SUCCEEDED ? 1 : -1; | |
418 | ||
2c7e050f | 419 | r = sd_bus_message_append(reply, "(sbbsi)", |
59fccdc5 | 420 | to_string(c->type), |
2c7e050f | 421 | c->trigger, c->negate, |
cc50ef13 | 422 | c->parameter, tristate); |
718db961 LP |
423 | if (r < 0) |
424 | return r; | |
45fb0699 | 425 | |
718db961 | 426 | } |
52990c2e | 427 | |
718db961 | 428 | return sd_bus_message_close_container(reply); |
52990c2e ZJS |
429 | } |
430 | ||
718db961 LP |
431 | static int property_get_load_error( |
432 | sd_bus *bus, | |
433 | const char *path, | |
434 | const char *interface, | |
435 | const char *property, | |
436 | sd_bus_message *reply, | |
ebcf1f97 LP |
437 | void *userdata, |
438 | sd_bus_error *error) { | |
52990c2e | 439 | |
4afd3348 | 440 | _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; |
718db961 | 441 | Unit *u = userdata; |
52990c2e | 442 | |
718db961 LP |
443 | assert(bus); |
444 | assert(reply); | |
445 | assert(u); | |
52990c2e | 446 | |
718db961 LP |
447 | if (u->load_error != 0) |
448 | sd_bus_error_set_errno(&e, u->load_error); | |
52990c2e | 449 | |
718db961 | 450 | return sd_bus_message_append(reply, "(ss)", e.name, e.message); |
52990c2e ZJS |
451 | } |
452 | ||
88ced61b MC |
453 | static int bus_verify_manage_units_async_full( |
454 | Unit *u, | |
455 | const char *verb, | |
456 | int capability, | |
457 | const char *polkit_message, | |
05a98afd | 458 | bool interactive, |
88ced61b MC |
459 | sd_bus_message *call, |
460 | sd_bus_error *error) { | |
461 | ||
462 | const char *details[9] = { | |
463 | "unit", u->id, | |
464 | "verb", verb, | |
465 | }; | |
466 | ||
467 | if (polkit_message) { | |
468 | details[4] = "polkit.message"; | |
469 | details[5] = polkit_message; | |
470 | details[6] = "polkit.gettext_domain"; | |
471 | details[7] = GETTEXT_PACKAGE; | |
472 | } | |
473 | ||
05a98afd LP |
474 | return bus_verify_polkit_async( |
475 | call, | |
476 | capability, | |
477 | "org.freedesktop.systemd1.manage-units", | |
478 | details, | |
479 | interactive, | |
480 | UID_INVALID, | |
481 | &u->manager->polkit_registry, | |
482 | error); | |
88ced61b MC |
483 | } |
484 | ||
1d22e906 | 485 | int bus_unit_method_start_generic( |
1d22e906 LP |
486 | sd_bus_message *message, |
487 | Unit *u, | |
488 | JobType job_type, | |
489 | bool reload_if_possible, | |
490 | sd_bus_error *error) { | |
491 | ||
718db961 LP |
492 | const char *smode; |
493 | JobMode mode; | |
88ced61b MC |
494 | _cleanup_free_ char *verb = NULL; |
495 | static const char *const polkit_message_for_job[_JOB_TYPE_MAX] = { | |
496 | [JOB_START] = N_("Authentication is required to start '$(unit)'."), | |
497 | [JOB_STOP] = N_("Authentication is required to stop '$(unit)'."), | |
498 | [JOB_RELOAD] = N_("Authentication is required to reload '$(unit)'."), | |
499 | [JOB_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
500 | [JOB_TRY_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
501 | }; | |
718db961 | 502 | int r; |
9f39404c | 503 | |
718db961 | 504 | assert(message); |
9f39404c | 505 | assert(u); |
718db961 | 506 | assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); |
9f39404c | 507 | |
61ea63f1 EV |
508 | r = mac_selinux_unit_access_check( |
509 | u, message, | |
94bd7323 EV |
510 | job_type_to_access_method(job_type), |
511 | error); | |
1d22e906 LP |
512 | if (r < 0) |
513 | return r; | |
514 | ||
718db961 LP |
515 | r = sd_bus_message_read(message, "s", &smode); |
516 | if (r < 0) | |
ebcf1f97 | 517 | return r; |
9f39404c | 518 | |
718db961 LP |
519 | mode = job_mode_from_string(smode); |
520 | if (mode < 0) | |
ebcf1f97 | 521 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); |
9f39404c | 522 | |
88ced61b | 523 | if (reload_if_possible) |
605405c6 | 524 | verb = strjoin("reload-or-", job_type_to_string(job_type)); |
88ced61b MC |
525 | else |
526 | verb = strdup(job_type_to_string(job_type)); | |
527 | if (!verb) | |
528 | return -ENOMEM; | |
529 | ||
530 | r = bus_verify_manage_units_async_full( | |
531 | u, | |
532 | verb, | |
533 | CAP_SYS_ADMIN, | |
534 | job_type < _JOB_TYPE_MAX ? polkit_message_for_job[job_type] : NULL, | |
05a98afd | 535 | true, |
88ced61b MC |
536 | message, |
537 | error); | |
1d22e906 LP |
538 | if (r < 0) |
539 | return r; | |
540 | if (r == 0) | |
541 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
542 | ||
19070062 | 543 | return bus_unit_queue_job(message, u, job_type, mode, reload_if_possible, error); |
9f39404c LP |
544 | } |
545 | ||
19070062 LP |
546 | static int method_start(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
547 | return bus_unit_method_start_generic(message, userdata, JOB_START, false, error); | |
718db961 | 548 | } |
b548631a | 549 | |
19070062 LP |
550 | static int method_stop(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
551 | return bus_unit_method_start_generic(message, userdata, JOB_STOP, false, error); | |
718db961 LP |
552 | } |
553 | ||
19070062 LP |
554 | static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
555 | return bus_unit_method_start_generic(message, userdata, JOB_RELOAD, false, error); | |
718db961 | 556 | } |
0a524ba7 | 557 | |
19070062 LP |
558 | static int method_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
559 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, false, error); | |
718db961 | 560 | } |
8a0867d6 | 561 | |
19070062 LP |
562 | static int method_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
563 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, false, error); | |
718db961 | 564 | } |
cad45ba1 | 565 | |
19070062 LP |
566 | static int method_reload_or_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
567 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, true, error); | |
718db961 | 568 | } |
8a0867d6 | 569 | |
19070062 LP |
570 | static int method_reload_or_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
571 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, true, error); | |
718db961 | 572 | } |
8a0867d6 | 573 | |
19070062 | 574 | int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 LP |
575 | Unit *u = userdata; |
576 | const char *swho; | |
577 | int32_t signo; | |
578 | KillWho who; | |
579 | int r; | |
5632e374 | 580 | |
718db961 LP |
581 | assert(message); |
582 | assert(u); | |
cad45ba1 | 583 | |
1d22e906 | 584 | r = mac_selinux_unit_access_check(u, message, "stop", error); |
283868e1 SW |
585 | if (r < 0) |
586 | return r; | |
283868e1 | 587 | |
718db961 LP |
588 | r = sd_bus_message_read(message, "si", &swho, &signo); |
589 | if (r < 0) | |
ebcf1f97 | 590 | return r; |
718db961 LP |
591 | |
592 | if (isempty(swho)) | |
593 | who = KILL_ALL; | |
594 | else { | |
595 | who = kill_who_from_string(swho); | |
596 | if (who < 0) | |
ebcf1f97 | 597 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho); |
718db961 | 598 | } |
5632e374 | 599 | |
6eb7c172 | 600 | if (!SIGNAL_VALID(signo)) |
ebcf1f97 | 601 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range."); |
8e2af478 | 602 | |
88ced61b MC |
603 | r = bus_verify_manage_units_async_full( |
604 | u, | |
605 | "kill", | |
606 | CAP_KILL, | |
607 | N_("Authentication is required to kill '$(unit)'."), | |
05a98afd | 608 | true, |
88ced61b MC |
609 | message, |
610 | error); | |
ebcf1f97 LP |
611 | if (r < 0) |
612 | return r; | |
1d22e906 LP |
613 | if (r == 0) |
614 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
8e2af478 | 615 | |
ebcf1f97 | 616 | r = unit_kill(u, who, signo, error); |
718db961 | 617 | if (r < 0) |
ebcf1f97 | 618 | return r; |
8e2af478 | 619 | |
df2d202e | 620 | return sd_bus_reply_method_return(message, NULL); |
718db961 | 621 | } |
8e2af478 | 622 | |
19070062 | 623 | int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 | 624 | Unit *u = userdata; |
ebcf1f97 | 625 | int r; |
b548631a | 626 | |
718db961 LP |
627 | assert(message); |
628 | assert(u); | |
b548631a | 629 | |
1d22e906 | 630 | r = mac_selinux_unit_access_check(u, message, "reload", error); |
283868e1 SW |
631 | if (r < 0) |
632 | return r; | |
283868e1 | 633 | |
88ced61b MC |
634 | r = bus_verify_manage_units_async_full( |
635 | u, | |
636 | "reset-failed", | |
637 | CAP_SYS_ADMIN, | |
638 | N_("Authentication is required to reset the \"failed\" state of '$(unit)'."), | |
05a98afd | 639 | true, |
88ced61b MC |
640 | message, |
641 | error); | |
ebcf1f97 LP |
642 | if (r < 0) |
643 | return r; | |
1d22e906 LP |
644 | if (r == 0) |
645 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
b548631a | 646 | |
718db961 | 647 | unit_reset_failed(u); |
b548631a | 648 | |
df2d202e | 649 | return sd_bus_reply_method_return(message, NULL); |
ea430986 LP |
650 | } |
651 | ||
19070062 | 652 | int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 LP |
653 | Unit *u = userdata; |
654 | int runtime, r; | |
ea430986 | 655 | |
ea430986 | 656 | assert(message); |
718db961 | 657 | assert(u); |
80fbf05e | 658 | |
1d22e906 | 659 | r = mac_selinux_unit_access_check(u, message, "start", error); |
283868e1 SW |
660 | if (r < 0) |
661 | return r; | |
283868e1 | 662 | |
718db961 LP |
663 | r = sd_bus_message_read(message, "b", &runtime); |
664 | if (r < 0) | |
ebcf1f97 | 665 | return r; |
2cccbca4 | 666 | |
88ced61b MC |
667 | r = bus_verify_manage_units_async_full( |
668 | u, | |
669 | "set-property", | |
670 | CAP_SYS_ADMIN, | |
671 | N_("Authentication is required to set properties on '$(unit)'."), | |
05a98afd | 672 | true, |
88ced61b MC |
673 | message, |
674 | error); | |
ebcf1f97 LP |
675 | if (r < 0) |
676 | return r; | |
1d22e906 LP |
677 | if (r == 0) |
678 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
cad45ba1 | 679 | |
ebcf1f97 | 680 | r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error); |
718db961 | 681 | if (r < 0) |
ebcf1f97 | 682 | return r; |
2cccbca4 | 683 | |
df2d202e | 684 | return sd_bus_reply_method_return(message, NULL); |
718db961 | 685 | } |
2cccbca4 | 686 | |
05a98afd LP |
687 | int bus_unit_method_ref(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
688 | Unit *u = userdata; | |
689 | int r; | |
690 | ||
691 | assert(message); | |
692 | assert(u); | |
693 | ||
694 | r = mac_selinux_unit_access_check(u, message, "start", error); | |
695 | if (r < 0) | |
696 | return r; | |
697 | ||
698 | r = bus_verify_manage_units_async_full( | |
699 | u, | |
700 | "ref", | |
701 | CAP_SYS_ADMIN, | |
702 | NULL, | |
703 | false, | |
704 | message, | |
705 | error); | |
706 | if (r < 0) | |
707 | return r; | |
708 | if (r == 0) | |
709 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
710 | ||
711 | r = bus_unit_track_add_sender(u, message); | |
712 | if (r < 0) | |
713 | return r; | |
714 | ||
715 | return sd_bus_reply_method_return(message, NULL); | |
716 | } | |
717 | ||
718 | int bus_unit_method_unref(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
719 | Unit *u = userdata; | |
720 | int r; | |
721 | ||
722 | assert(message); | |
723 | assert(u); | |
724 | ||
725 | r = bus_unit_track_remove_sender(u, message); | |
726 | if (r == -EUNATCH) | |
727 | return sd_bus_error_setf(error, BUS_ERROR_NOT_REFERENCED, "Unit has not been referenced yet."); | |
728 | if (r < 0) | |
729 | return r; | |
730 | ||
731 | return sd_bus_reply_method_return(message, NULL); | |
732 | } | |
733 | ||
718db961 LP |
734 | const sd_bus_vtable bus_unit_vtable[] = { |
735 | SD_BUS_VTABLE_START(0), | |
736 | ||
556089dc LP |
737 | SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), SD_BUS_VTABLE_PROPERTY_CONST), |
738 | SD_BUS_PROPERTY("Names", "as", property_get_names, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 739 | SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0), |
556089dc | 740 | SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES]), SD_BUS_VTABLE_PROPERTY_CONST), |
556089dc | 741 | SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE]), SD_BUS_VTABLE_PROPERTY_CONST), |
556089dc LP |
742 | SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTS]), SD_BUS_VTABLE_PROPERTY_CONST), |
743 | SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BINDS_TO]), SD_BUS_VTABLE_PROPERTY_CONST), | |
744 | SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PART_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
745 | SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
be7d9ff7 | 746 | SD_BUS_PROPERTY("RequisiteOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
556089dc LP |
747 | SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
748 | SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BOUND_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
749 | SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
750 | SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
751 | SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
752 | SD_BUS_PROPERTY("Before", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BEFORE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
753 | SD_BUS_PROPERTY("After", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_AFTER]), SD_BUS_VTABLE_PROPERTY_CONST), | |
754 | SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_ON_FAILURE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
755 | SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
756 | SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
757 | SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), SD_BUS_VTABLE_PROPERTY_CONST), | |
758 | SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), SD_BUS_VTABLE_PROPERTY_CONST), | |
759 | SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_JOINS_NAMESPACE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
99c14018 | 760 | SD_BUS_PROPERTY("RequiresMountsFor", "as", property_get_requires_mounts_for, offsetof(Unit, requires_mounts_for), SD_BUS_VTABLE_PROPERTY_CONST), |
556089dc LP |
761 | SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST), |
762 | SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
763 | SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 LP |
764 | SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
765 | SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
556089dc LP |
766 | SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), SD_BUS_VTABLE_PROPERTY_CONST), |
767 | SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), SD_BUS_VTABLE_PROPERTY_CONST), | |
768 | SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 769 | SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0), |
d2dc52db | 770 | SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0), |
a483fb59 | 771 | BUS_PROPERTY_DUAL_TIMESTAMP("StateChangeTimestamp", offsetof(Unit, state_change_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 LP |
772 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
773 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
774 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
775 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
556089dc LP |
776 | SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
777 | SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
778 | SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
779 | SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 780 | SD_BUS_PROPERTY("Job", "(uo)", property_get_job, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
556089dc LP |
781 | SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), SD_BUS_VTABLE_PROPERTY_CONST), |
782 | SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), SD_BUS_VTABLE_PROPERTY_CONST), | |
783 | SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), SD_BUS_VTABLE_PROPERTY_CONST), | |
784 | SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
785 | SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), SD_BUS_VTABLE_PROPERTY_CONST), | |
786 | SD_BUS_PROPERTY("OnFailureJobMode", "s", property_get_job_mode, offsetof(Unit, on_failure_job_mode), SD_BUS_VTABLE_PROPERTY_CONST), | |
787 | SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
556089dc LP |
788 | SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
789 | SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), SD_BUS_VTABLE_PROPERTY_CONST), | |
a2df3ea4 | 790 | SD_BUS_PROPERTY("JobRunningTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_running_timeout), SD_BUS_VTABLE_PROPERTY_CONST), |
87a47f99 | 791 | SD_BUS_PROPERTY("JobTimeoutAction", "s", property_get_emergency_action, offsetof(Unit, job_timeout_action), SD_BUS_VTABLE_PROPERTY_CONST), |
f189ab18 | 792 | SD_BUS_PROPERTY("JobTimeoutRebootArgument", "s", NULL, offsetof(Unit, job_timeout_reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
718db961 | 793 | SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
59fccdc5 | 794 | SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 | 795 | BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
59fccdc5 LP |
796 | BUS_PROPERTY_DUAL_TIMESTAMP("AssertTimestamp", offsetof(Unit, assert_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
797 | SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, offsetof(Unit, conditions), 0), | |
798 | SD_BUS_PROPERTY("Asserts", "a(sbbsi)", property_get_conditions, offsetof(Unit, asserts), 0), | |
556089dc LP |
799 | SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
800 | SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), SD_BUS_VTABLE_PROPERTY_CONST), | |
f5869324 | 801 | SD_BUS_PROPERTY("Perpetual", "b", bus_property_get_bool, offsetof(Unit, perpetual), SD_BUS_VTABLE_PROPERTY_CONST), |
c075f5fc | 802 | SD_BUS_PROPERTY("StartLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST), |
6bf0f408 | 803 | SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_limit.burst), SD_BUS_VTABLE_PROPERTY_CONST), |
87a47f99 | 804 | SD_BUS_PROPERTY("StartLimitAction", "s", property_get_emergency_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST), |
53c35a76 | 805 | SD_BUS_PROPERTY("FailureAction", "s", property_get_emergency_action, offsetof(Unit, failure_action), SD_BUS_VTABLE_PROPERTY_CONST), |
e7dfbb4e | 806 | SD_BUS_PROPERTY("SuccessAction", "s", property_get_emergency_action, offsetof(Unit, success_action), SD_BUS_VTABLE_PROPERTY_CONST), |
6bf0f408 | 807 | SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
4b58153d | 808 | SD_BUS_PROPERTY("InvocationID", "ay", bus_property_get_id128, offsetof(Unit, invocation_id), 0), |
5afe510c | 809 | SD_BUS_PROPERTY("CollectMode", "s", property_get_collect_mode, offsetof(Unit, collect_mode), 0), |
718db961 | 810 | |
1d22e906 LP |
811 | SD_BUS_METHOD("Start", "s", "o", method_start, SD_BUS_VTABLE_UNPRIVILEGED), |
812 | SD_BUS_METHOD("Stop", "s", "o", method_stop, SD_BUS_VTABLE_UNPRIVILEGED), | |
813 | SD_BUS_METHOD("Reload", "s", "o", method_reload, SD_BUS_VTABLE_UNPRIVILEGED), | |
814 | SD_BUS_METHOD("Restart", "s", "o", method_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
815 | SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
816 | SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
817 | SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
818 | SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), | |
819 | SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED), | |
820 | SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, SD_BUS_VTABLE_UNPRIVILEGED), | |
05a98afd LP |
821 | SD_BUS_METHOD("Ref", NULL, NULL, bus_unit_method_ref, SD_BUS_VTABLE_UNPRIVILEGED), |
822 | SD_BUS_METHOD("Unref", NULL, NULL, bus_unit_method_unref, SD_BUS_VTABLE_UNPRIVILEGED), | |
718db961 | 823 | |
51d73fd9 LP |
824 | /* Obsolete properties or obsolete alias names */ |
825 | SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), | |
826 | SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), | |
827 | SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), | |
828 | SD_BUS_PROPERTY("RequisiteOfOverridable", "as", property_get_obsolete_dependencies, 0, SD_BUS_VTABLE_HIDDEN), | |
829 | SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), | |
c075f5fc | 830 | SD_BUS_PROPERTY("StartLimitIntervalSec", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), |
718db961 LP |
831 | SD_BUS_VTABLE_END |
832 | }; | |
2cccbca4 | 833 | |
718db961 LP |
834 | static int property_get_slice( |
835 | sd_bus *bus, | |
836 | const char *path, | |
837 | const char *interface, | |
838 | const char *property, | |
839 | sd_bus_message *reply, | |
ebcf1f97 LP |
840 | void *userdata, |
841 | sd_bus_error *error) { | |
2cccbca4 | 842 | |
718db961 | 843 | Unit *u = userdata; |
2cccbca4 | 844 | |
718db961 LP |
845 | assert(bus); |
846 | assert(reply); | |
847 | assert(u); | |
2cccbca4 | 848 | |
718db961 LP |
849 | return sd_bus_message_append(reply, "s", unit_slice_name(u)); |
850 | } | |
2cccbca4 | 851 | |
934277fe LP |
852 | static int property_get_current_memory( |
853 | sd_bus *bus, | |
854 | const char *path, | |
855 | const char *interface, | |
856 | const char *property, | |
857 | sd_bus_message *reply, | |
858 | void *userdata, | |
859 | sd_bus_error *error) { | |
860 | ||
934277fe | 861 | uint64_t sz = (uint64_t) -1; |
5ad096b3 | 862 | Unit *u = userdata; |
934277fe LP |
863 | int r; |
864 | ||
865 | assert(bus); | |
866 | assert(reply); | |
867 | assert(u); | |
868 | ||
5ad096b3 LP |
869 | r = unit_get_memory_current(u, &sz); |
870 | if (r < 0 && r != -ENODATA) | |
f2341e0a | 871 | log_unit_warning_errno(u, r, "Failed to get memory.usage_in_bytes attribute: %m"); |
934277fe | 872 | |
5ad096b3 LP |
873 | return sd_bus_message_append(reply, "t", sz); |
874 | } | |
934277fe | 875 | |
03a7b521 LP |
876 | static int property_get_current_tasks( |
877 | sd_bus *bus, | |
878 | const char *path, | |
879 | const char *interface, | |
880 | const char *property, | |
881 | sd_bus_message *reply, | |
882 | void *userdata, | |
883 | sd_bus_error *error) { | |
884 | ||
885 | uint64_t cn = (uint64_t) -1; | |
886 | Unit *u = userdata; | |
887 | int r; | |
888 | ||
889 | assert(bus); | |
890 | assert(reply); | |
891 | assert(u); | |
892 | ||
893 | r = unit_get_tasks_current(u, &cn); | |
894 | if (r < 0 && r != -ENODATA) | |
895 | log_unit_warning_errno(u, r, "Failed to get pids.current attribute: %m"); | |
896 | ||
897 | return sd_bus_message_append(reply, "t", cn); | |
898 | } | |
899 | ||
5ad096b3 LP |
900 | static int property_get_cpu_usage( |
901 | sd_bus *bus, | |
902 | const char *path, | |
903 | const char *interface, | |
904 | const char *property, | |
905 | sd_bus_message *reply, | |
906 | void *userdata, | |
907 | sd_bus_error *error) { | |
934277fe | 908 | |
5ad096b3 LP |
909 | nsec_t ns = (nsec_t) -1; |
910 | Unit *u = userdata; | |
911 | int r; | |
912 | ||
913 | assert(bus); | |
914 | assert(reply); | |
915 | assert(u); | |
916 | ||
917 | r = unit_get_cpu_usage(u, &ns); | |
918 | if (r < 0 && r != -ENODATA) | |
f2341e0a | 919 | log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m"); |
5ad096b3 LP |
920 | |
921 | return sd_bus_message_append(reply, "t", ns); | |
934277fe LP |
922 | } |
923 | ||
98bac605 LP |
924 | static int property_get_cgroup( |
925 | sd_bus *bus, | |
926 | const char *path, | |
927 | const char *interface, | |
928 | const char *property, | |
929 | sd_bus_message *reply, | |
930 | void *userdata, | |
931 | sd_bus_error *error) { | |
932 | ||
933 | Unit *u = userdata; | |
934 | const char *t; | |
935 | ||
936 | assert(bus); | |
937 | assert(reply); | |
938 | assert(u); | |
939 | ||
940 | /* Three cases: a) u->cgroup_path is NULL, in which case the | |
941 | * unit has no control group, which we report as the empty | |
942 | * string. b) u->cgroup_path is the empty string, which | |
943 | * indicates the root cgroup, which we report as "/". c) all | |
944 | * other cases we report as-is. */ | |
945 | ||
946 | if (u->cgroup_path) | |
947 | t = isempty(u->cgroup_path) ? "/" : u->cgroup_path; | |
948 | else | |
949 | t = ""; | |
950 | ||
951 | return sd_bus_message_append(reply, "s", t); | |
952 | } | |
953 | ||
291d565a LP |
954 | static int append_process(sd_bus_message *reply, const char *p, pid_t pid, Set *pids) { |
955 | _cleanup_free_ char *buf = NULL, *cmdline = NULL; | |
956 | int r; | |
957 | ||
958 | assert(reply); | |
959 | assert(pid > 0); | |
960 | ||
961 | r = set_put(pids, PID_TO_PTR(pid)); | |
4c701096 | 962 | if (IN_SET(r, 0, -EEXIST)) |
291d565a LP |
963 | return 0; |
964 | if (r < 0) | |
965 | return r; | |
966 | ||
967 | if (!p) { | |
968 | r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, pid, &buf); | |
969 | if (r == -ESRCH) | |
970 | return 0; | |
971 | if (r < 0) | |
972 | return r; | |
973 | ||
974 | p = buf; | |
975 | } | |
976 | ||
977 | (void) get_process_cmdline(pid, 0, true, &cmdline); | |
978 | ||
979 | return sd_bus_message_append(reply, | |
980 | "(sus)", | |
981 | p, | |
982 | (uint32_t) pid, | |
983 | cmdline); | |
984 | } | |
985 | ||
986 | static int append_cgroup(sd_bus_message *reply, const char *p, Set *pids) { | |
987 | _cleanup_closedir_ DIR *d = NULL; | |
988 | _cleanup_fclose_ FILE *f = NULL; | |
989 | int r; | |
990 | ||
991 | assert(reply); | |
992 | assert(p); | |
993 | ||
994 | r = cg_enumerate_processes(SYSTEMD_CGROUP_CONTROLLER, p, &f); | |
995 | if (r == ENOENT) | |
996 | return 0; | |
997 | if (r < 0) | |
998 | return r; | |
999 | ||
1000 | for (;;) { | |
1001 | pid_t pid; | |
1002 | ||
1003 | r = cg_read_pid(f, &pid); | |
1004 | if (r < 0) | |
1005 | return r; | |
1006 | if (r == 0) | |
1007 | break; | |
1008 | ||
1009 | if (is_kernel_thread(pid) > 0) | |
1010 | continue; | |
1011 | ||
1012 | r = append_process(reply, p, pid, pids); | |
1013 | if (r < 0) | |
1014 | return r; | |
1015 | } | |
1016 | ||
1017 | r = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, p, &d); | |
1018 | if (r == -ENOENT) | |
1019 | return 0; | |
1020 | if (r < 0) | |
1021 | return r; | |
1022 | ||
1023 | for (;;) { | |
1024 | _cleanup_free_ char *g = NULL, *j = NULL; | |
1025 | ||
1026 | r = cg_read_subgroup(d, &g); | |
1027 | if (r < 0) | |
1028 | return r; | |
1029 | if (r == 0) | |
1030 | break; | |
1031 | ||
605405c6 | 1032 | j = strjoin(p, "/", g); |
291d565a LP |
1033 | if (!j) |
1034 | return -ENOMEM; | |
1035 | ||
1036 | r = append_cgroup(reply, j, pids); | |
1037 | if (r < 0) | |
1038 | return r; | |
1039 | } | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | int bus_unit_method_get_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
1045 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1046 | _cleanup_(set_freep) Set *pids = NULL; | |
291d565a LP |
1047 | Unit *u = userdata; |
1048 | pid_t pid; | |
1049 | int r; | |
1050 | ||
1051 | assert(message); | |
1052 | ||
807fa5d9 LP |
1053 | r = mac_selinux_unit_access_check(u, message, "status", error); |
1054 | if (r < 0) | |
1055 | return r; | |
1056 | ||
291d565a LP |
1057 | pids = set_new(NULL); |
1058 | if (!pids) | |
1059 | return -ENOMEM; | |
1060 | ||
1061 | r = sd_bus_message_new_method_return(message, &reply); | |
1062 | if (r < 0) | |
1063 | return r; | |
1064 | ||
1065 | r = sd_bus_message_open_container(reply, 'a', "(sus)"); | |
1066 | if (r < 0) | |
1067 | return r; | |
1068 | ||
1069 | if (u->cgroup_path) { | |
1070 | r = append_cgroup(reply, u->cgroup_path, pids); | |
1071 | if (r < 0) | |
1072 | return r; | |
1073 | } | |
1074 | ||
1075 | /* The main and control pids might live outside of the cgroup, hence fetch them separately */ | |
1076 | pid = unit_main_pid(u); | |
1077 | if (pid > 0) { | |
1078 | r = append_process(reply, NULL, pid, pids); | |
1079 | if (r < 0) | |
1080 | return r; | |
1081 | } | |
1082 | ||
1083 | pid = unit_control_pid(u); | |
1084 | if (pid > 0) { | |
1085 | r = append_process(reply, NULL, pid, pids); | |
1086 | if (r < 0) | |
1087 | return r; | |
1088 | } | |
1089 | ||
1090 | r = sd_bus_message_close_container(reply); | |
1091 | if (r < 0) | |
1092 | return r; | |
1093 | ||
1094 | return sd_bus_send(NULL, reply, NULL); | |
1095 | } | |
1096 | ||
906c06f6 DM |
1097 | static int property_get_ip_counter( |
1098 | sd_bus *bus, | |
1099 | const char *path, | |
1100 | const char *interface, | |
1101 | const char *property, | |
1102 | sd_bus_message *reply, | |
1103 | void *userdata, | |
1104 | sd_bus_error *error) { | |
1105 | ||
1106 | CGroupIPAccountingMetric metric; | |
1107 | uint64_t value = (uint64_t) -1; | |
1108 | Unit *u = userdata; | |
1109 | ||
1110 | assert(bus); | |
1111 | assert(reply); | |
1112 | assert(property); | |
1113 | assert(u); | |
1114 | ||
1115 | if (streq(property, "IPIngressBytes")) | |
1116 | metric = CGROUP_IP_INGRESS_BYTES; | |
1117 | else if (streq(property, "IPIngressPackets")) | |
1118 | metric = CGROUP_IP_INGRESS_PACKETS; | |
1119 | else if (streq(property, "IPEgressBytes")) | |
1120 | metric = CGROUP_IP_EGRESS_BYTES; | |
1121 | else { | |
1122 | assert(streq(property, "IPEgressPackets")); | |
1123 | metric = CGROUP_IP_EGRESS_PACKETS; | |
1124 | } | |
1125 | ||
1126 | (void) unit_get_ip_accounting(u, metric, &value); | |
1127 | return sd_bus_message_append(reply, "t", value); | |
1128 | } | |
1129 | ||
6592b975 LP |
1130 | int bus_unit_method_attach_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
1131 | ||
1132 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; | |
1133 | _cleanup_(set_freep) Set *pids = NULL; | |
1134 | Unit *u = userdata; | |
1135 | const char *path; | |
1136 | int r; | |
1137 | ||
1138 | assert(message); | |
1139 | ||
1140 | /* This migrates the processes with the specified PIDs into the cgroup of this unit, optionally below a | |
1141 | * specified cgroup path. Obviously this only works for units that actually maintain a cgroup | |
1142 | * representation. If a process is already in the cgroup no operation is executed – in this case the specified | |
1143 | * subcgroup path has no effect! */ | |
1144 | ||
1145 | r = mac_selinux_unit_access_check(u, message, "start", error); | |
1146 | if (r < 0) | |
1147 | return r; | |
1148 | ||
1149 | r = sd_bus_message_read(message, "s", &path); | |
1150 | if (r < 0) | |
1151 | return r; | |
1152 | ||
1153 | path = empty_to_null(path); | |
1154 | if (path) { | |
1155 | if (!path_is_absolute(path)) | |
1156 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not absolute: %s", path); | |
1157 | ||
1158 | if (!path_is_normalized(path)) | |
1159 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not normalized: %s", path); | |
1160 | } | |
1161 | ||
1162 | if (!unit_cgroup_delegate(u)) | |
1163 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Process migration not available on non-delegated units."); | |
1164 | ||
1165 | if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u))) | |
1166 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit is not active, refusing."); | |
1167 | ||
1168 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds); | |
1169 | if (r < 0) | |
1170 | return r; | |
1171 | ||
1172 | r = sd_bus_message_enter_container(message, 'a', "u"); | |
1173 | if (r < 0) | |
1174 | return r; | |
1175 | for (;;) { | |
1176 | uid_t process_uid, sender_uid; | |
1177 | uint32_t upid; | |
1178 | pid_t pid; | |
1179 | ||
1180 | r = sd_bus_message_read(message, "u", &upid); | |
1181 | if (r < 0) | |
1182 | return r; | |
1183 | if (r == 0) | |
1184 | break; | |
1185 | ||
1186 | if (upid == 0) { | |
1187 | r = sd_bus_creds_get_pid(creds, &pid); | |
1188 | if (r < 0) | |
1189 | return r; | |
1190 | } else | |
1191 | pid = (uid_t) upid; | |
1192 | ||
1193 | /* Filter out duplicates */ | |
1194 | if (set_contains(pids, PID_TO_PTR(pid))) | |
1195 | continue; | |
1196 | ||
1197 | /* Check if this process is suitable for attaching to this unit */ | |
1198 | r = unit_pid_attachable(u, pid, error); | |
1199 | if (r < 0) | |
1200 | return r; | |
1201 | ||
1202 | /* Let's query the sender's UID, so that we can make our security decisions */ | |
1203 | r = sd_bus_creds_get_euid(creds, &sender_uid); | |
1204 | if (r < 0) | |
1205 | return r; | |
1206 | ||
1207 | /* Let's validate security: if the sender is root, then all is OK. If the sender is is any other unit, | |
1208 | * then the process' UID and the target unit's UID have to match the sender's UID */ | |
1209 | if (sender_uid != 0 && sender_uid != getuid()) { | |
1210 | r = get_process_uid(pid, &process_uid); | |
1211 | if (r < 0) | |
1212 | return sd_bus_error_set_errnof(error, r, "Failed to retrieve process UID: %m"); | |
1213 | ||
1214 | if (process_uid != sender_uid) | |
1215 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by client's UID. Refusing.", pid); | |
1216 | if (process_uid != u->ref_uid) | |
1217 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by target unit's UID. Refusing.", pid); | |
1218 | } | |
1219 | ||
1220 | if (!pids) { | |
1221 | pids = set_new(NULL); | |
1222 | if (!pids) | |
1223 | return -ENOMEM; | |
1224 | } | |
1225 | ||
1226 | r = set_put(pids, PID_TO_PTR(pid)); | |
1227 | if (r < 0) | |
1228 | return r; | |
1229 | } | |
1230 | ||
1231 | r = sd_bus_message_exit_container(message); | |
1232 | if (r < 0) | |
1233 | return r; | |
1234 | ||
1235 | r = unit_attach_pids_to_cgroup(u, pids, path); | |
1236 | if (r < 0) | |
1237 | return sd_bus_error_set_errnof(error, r, "Failed to attach processes to control group: %m"); | |
1238 | ||
1239 | return sd_bus_reply_method_return(message, NULL); | |
1240 | } | |
1241 | ||
718db961 LP |
1242 | const sd_bus_vtable bus_unit_cgroup_vtable[] = { |
1243 | SD_BUS_VTABLE_START(0), | |
1244 | SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0), | |
98bac605 | 1245 | SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0), |
934277fe | 1246 | SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0), |
5ad096b3 | 1247 | SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0), |
03a7b521 | 1248 | SD_BUS_PROPERTY("TasksCurrent", "t", property_get_current_tasks, 0, 0), |
906c06f6 DM |
1249 | SD_BUS_PROPERTY("IPIngressBytes", "t", property_get_ip_counter, 0, 0), |
1250 | SD_BUS_PROPERTY("IPIngressPackets", "t", property_get_ip_counter, 0, 0), | |
1251 | SD_BUS_PROPERTY("IPEgressBytes", "t", property_get_ip_counter, 0, 0), | |
1252 | SD_BUS_PROPERTY("IPEgressPackets", "t", property_get_ip_counter, 0, 0), | |
291d565a | 1253 | SD_BUS_METHOD("GetProcesses", NULL, "a(sus)", bus_unit_method_get_processes, SD_BUS_VTABLE_UNPRIVILEGED), |
6592b975 | 1254 | SD_BUS_METHOD("AttachProcesses", "sau", NULL, bus_unit_method_attach_processes, SD_BUS_VTABLE_UNPRIVILEGED), |
718db961 LP |
1255 | SD_BUS_VTABLE_END |
1256 | }; | |
2cccbca4 | 1257 | |
8f8f05a9 | 1258 | static int send_new_signal(sd_bus *bus, void *userdata) { |
4afd3348 | 1259 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
718db961 LP |
1260 | _cleanup_free_ char *p = NULL; |
1261 | Unit *u = userdata; | |
1262 | int r; | |
2cccbca4 | 1263 | |
718db961 LP |
1264 | assert(bus); |
1265 | assert(u); | |
2cccbca4 | 1266 | |
718db961 | 1267 | p = unit_dbus_path(u); |
e861098b | 1268 | if (!p) |
718db961 | 1269 | return -ENOMEM; |
2cccbca4 | 1270 | |
718db961 LP |
1271 | r = sd_bus_message_new_signal( |
1272 | bus, | |
151b9b96 | 1273 | &m, |
718db961 LP |
1274 | "/org/freedesktop/systemd1", |
1275 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 1276 | "UnitNew"); |
718db961 LP |
1277 | if (r < 0) |
1278 | return r; | |
2cccbca4 | 1279 | |
718db961 LP |
1280 | r = sd_bus_message_append(m, "so", u->id, p); |
1281 | if (r < 0) | |
1282 | return r; | |
2cccbca4 | 1283 | |
8f8f05a9 | 1284 | return sd_bus_send(bus, m, NULL); |
718db961 | 1285 | } |
2cccbca4 | 1286 | |
8f8f05a9 | 1287 | static int send_changed_signal(sd_bus *bus, void *userdata) { |
718db961 LP |
1288 | _cleanup_free_ char *p = NULL; |
1289 | Unit *u = userdata; | |
1290 | int r; | |
2cccbca4 | 1291 | |
718db961 LP |
1292 | assert(bus); |
1293 | assert(u); | |
2cccbca4 | 1294 | |
718db961 | 1295 | p = unit_dbus_path(u); |
9ceefc81 | 1296 | if (!p) |
718db961 | 1297 | return -ENOMEM; |
2cccbca4 | 1298 | |
718db961 LP |
1299 | /* Send a properties changed signal. First for the specific |
1300 | * type, then for the generic unit. The clients may rely on | |
1301 | * this order to get atomic behavior if needed. */ | |
ea430986 | 1302 | |
aec8de63 LP |
1303 | r = sd_bus_emit_properties_changed_strv( |
1304 | bus, p, | |
21b735e7 | 1305 | unit_dbus_interface_from_type(u->type), |
aec8de63 | 1306 | NULL); |
fe7f06f1 | 1307 | if (r < 0) |
aec8de63 | 1308 | return r; |
80fbf05e | 1309 | |
fe7f06f1 | 1310 | return sd_bus_emit_properties_changed_strv( |
718db961 LP |
1311 | bus, p, |
1312 | "org.freedesktop.systemd1.Unit", | |
718db961 | 1313 | NULL); |
ea430986 LP |
1314 | } |
1315 | ||
c1e1601e | 1316 | void bus_unit_send_change_signal(Unit *u) { |
b170dd80 | 1317 | int r; |
c1e1601e | 1318 | assert(u); |
c1e1601e | 1319 | |
ac155bb8 | 1320 | if (u->in_dbus_queue) { |
71fda00f | 1321 | LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
ac155bb8 | 1322 | u->in_dbus_queue = false; |
c0bd0cf7 | 1323 | } |
c1e1601e | 1324 | |
ac155bb8 | 1325 | if (!u->id) |
04ade7d2 LP |
1326 | return; |
1327 | ||
ae572acd | 1328 | r = bus_foreach_bus(u->manager, u->bus_track, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u); |
718db961 | 1329 | if (r < 0) |
f2341e0a | 1330 | log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id); |
c1e1601e | 1331 | |
718db961 LP |
1332 | u->sent_dbus_new_signal = true; |
1333 | } | |
c4e2ceae | 1334 | |
8f8f05a9 | 1335 | static int send_removed_signal(sd_bus *bus, void *userdata) { |
4afd3348 | 1336 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
718db961 LP |
1337 | _cleanup_free_ char *p = NULL; |
1338 | Unit *u = userdata; | |
1339 | int r; | |
c4e2ceae | 1340 | |
718db961 LP |
1341 | assert(bus); |
1342 | assert(u); | |
c1e1601e | 1343 | |
718db961 | 1344 | p = unit_dbus_path(u); |
e861098b | 1345 | if (!p) |
718db961 | 1346 | return -ENOMEM; |
c1e1601e | 1347 | |
718db961 LP |
1348 | r = sd_bus_message_new_signal( |
1349 | bus, | |
151b9b96 | 1350 | &m, |
718db961 LP |
1351 | "/org/freedesktop/systemd1", |
1352 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 1353 | "UnitRemoved"); |
718db961 LP |
1354 | if (r < 0) |
1355 | return r; | |
c1e1601e | 1356 | |
718db961 LP |
1357 | r = sd_bus_message_append(m, "so", u->id, p); |
1358 | if (r < 0) | |
1359 | return r; | |
c1e1601e | 1360 | |
8f8f05a9 | 1361 | return sd_bus_send(bus, m, NULL); |
c1e1601e LP |
1362 | } |
1363 | ||
1364 | void bus_unit_send_removed_signal(Unit *u) { | |
718db961 | 1365 | int r; |
c1e1601e LP |
1366 | assert(u); |
1367 | ||
0dd99f86 | 1368 | if (!u->sent_dbus_new_signal || u->in_dbus_queue) |
7535cc78 LP |
1369 | bus_unit_send_change_signal(u); |
1370 | ||
ac155bb8 | 1371 | if (!u->id) |
04ade7d2 LP |
1372 | return; |
1373 | ||
ae572acd | 1374 | r = bus_foreach_bus(u->manager, u->bus_track, send_removed_signal, u); |
718db961 | 1375 | if (r < 0) |
f2341e0a | 1376 | log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id); |
c1e1601e | 1377 | } |
e2110e5d | 1378 | |
718db961 | 1379 | int bus_unit_queue_job( |
718db961 | 1380 | sd_bus_message *message, |
cad45ba1 LP |
1381 | Unit *u, |
1382 | JobType type, | |
1383 | JobMode mode, | |
ebcf1f97 LP |
1384 | bool reload_if_possible, |
1385 | sd_bus_error *error) { | |
cad45ba1 | 1386 | |
cad45ba1 LP |
1387 | _cleanup_free_ char *path = NULL; |
1388 | Job *j; | |
cad45ba1 LP |
1389 | int r; |
1390 | ||
cad45ba1 LP |
1391 | assert(message); |
1392 | assert(u); | |
1393 | assert(type >= 0 && type < _JOB_TYPE_MAX); | |
1394 | assert(mode >= 0 && mode < _JOB_MODE_MAX); | |
1395 | ||
f596e00f EV |
1396 | r = mac_selinux_unit_access_check( |
1397 | u, message, | |
1398 | job_type_to_access_method(type), | |
1399 | error); | |
1400 | if (r < 0) | |
1401 | return r; | |
1402 | ||
cad45ba1 LP |
1403 | if (reload_if_possible && unit_can_reload(u)) { |
1404 | if (type == JOB_RESTART) | |
1405 | type = JOB_RELOAD_OR_START; | |
1406 | else if (type == JOB_TRY_RESTART) | |
3282591d | 1407 | type = JOB_TRY_RELOAD; |
cad45ba1 LP |
1408 | } |
1409 | ||
718db961 | 1410 | if (type == JOB_STOP && |
3742095b | 1411 | (IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_ERROR)) && |
718db961 | 1412 | unit_active_state(u) == UNIT_INACTIVE) |
ebcf1f97 | 1413 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id); |
cad45ba1 LP |
1414 | |
1415 | if ((type == JOB_START && u->refuse_manual_start) || | |
1416 | (type == JOB_STOP && u->refuse_manual_stop) || | |
3742095b | 1417 | (IN_SET(type, JOB_RESTART, JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) || |
efb30ba1 | 1418 | (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start)) |
7e974e85 | 1419 | return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only (it is configured to refuse manual start/stop).", u->id); |
cad45ba1 | 1420 | |
4bd29fe5 | 1421 | r = manager_add_job(u->manager, type, u, mode, error, &j); |
cad45ba1 | 1422 | if (r < 0) |
ebcf1f97 | 1423 | return r; |
cad45ba1 | 1424 | |
c5a97ed1 LP |
1425 | r = bus_job_track_sender(j, message); |
1426 | if (r < 0) | |
1427 | return r; | |
cad45ba1 LP |
1428 | |
1429 | path = job_dbus_path(j); | |
1430 | if (!path) | |
6ce270b1 | 1431 | return -ENOMEM; |
cad45ba1 | 1432 | |
df2d202e | 1433 | return sd_bus_reply_method_return(message, "o", path); |
cad45ba1 LP |
1434 | } |
1435 | ||
721060d4 | 1436 | static int bus_unit_set_live_property( |
9f2e86af LP |
1437 | Unit *u, |
1438 | const char *name, | |
718db961 | 1439 | sd_bus_message *message, |
2e59b241 | 1440 | UnitWriteFlags flags, |
718db961 | 1441 | sd_bus_error *error) { |
9f2e86af LP |
1442 | |
1443 | int r; | |
1444 | ||
1445 | assert(u); | |
1446 | assert(name); | |
718db961 | 1447 | assert(message); |
9f2e86af | 1448 | |
721060d4 LP |
1449 | /* Handles setting properties both "live" (i.e. at any time during runtime), and during creation (for transient |
1450 | * units that are being created). */ | |
1451 | ||
9f2e86af | 1452 | if (streq(name, "Description")) { |
718db961 | 1453 | const char *d; |
9f2e86af | 1454 | |
718db961 LP |
1455 | r = sd_bus_message_read(message, "s", &d); |
1456 | if (r < 0) | |
1457 | return r; | |
8aec412f | 1458 | |
2e59b241 | 1459 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
718db961 | 1460 | r = unit_set_description(u, d); |
8aec412f LP |
1461 | if (r < 0) |
1462 | return r; | |
b9316fb0 | 1463 | |
2e59b241 | 1464 | unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "Description=%s", d); |
8aec412f | 1465 | } |
9f2e86af LP |
1466 | |
1467 | return 1; | |
721060d4 LP |
1468 | } |
1469 | ||
1470 | return 0; | |
1471 | } | |
1472 | ||
faa781cf YW |
1473 | static BUS_DEFINE_SET_TRANSIENT_PARSE(collect_mode, CollectMode, collect_mode_from_string); |
1474 | static BUS_DEFINE_SET_TRANSIENT_PARSE(emergency_action, EmergencyAction, emergency_action_from_string); | |
1475 | static BUS_DEFINE_SET_TRANSIENT_PARSE(job_mode, JobMode, job_mode_from_string); | |
1476 | ||
1477 | static int bus_set_transient_conditions( | |
1478 | Unit *u, | |
1479 | const char *name, | |
1480 | Condition **list, | |
1481 | bool is_condition, | |
1482 | sd_bus_message *message, | |
1483 | UnitWriteFlags flags, | |
1484 | sd_bus_error *error) { | |
1485 | ||
1486 | const char *type_name, *param; | |
1487 | int trigger, negate, r; | |
1488 | bool empty = true; | |
1489 | ||
1490 | assert(list); | |
1491 | ||
1492 | r = sd_bus_message_enter_container(message, 'a', "(sbbs)"); | |
1493 | if (r < 0) | |
1494 | return r; | |
1495 | ||
1496 | while ((r = sd_bus_message_read(message, "(sbbs)", &type_name, &trigger, &negate, ¶m)) > 0) { | |
1497 | ConditionType t; | |
1498 | ||
1499 | t = is_condition ? condition_type_from_string(type_name) : assert_type_from_string(type_name); | |
1500 | if (t < 0) | |
1501 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid condition type: %s", type_name); | |
1502 | ||
1503 | if (t != CONDITION_NULL) { | |
1504 | if (isempty(param)) | |
1505 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Condition parameter in %s is empty", type_name); | |
1506 | ||
1507 | if (condition_takes_path(t) && !path_is_absolute(param)) | |
1508 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path in condition %s is not absolute: %s", type_name, param); | |
1509 | } else | |
1510 | param = NULL; | |
1511 | ||
1512 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
1513 | Condition *c; | |
1514 | ||
1515 | c = condition_new(t, param, trigger, negate); | |
1516 | if (!c) | |
1517 | return -ENOMEM; | |
1518 | ||
1519 | LIST_PREPEND(conditions, *list, c); | |
1520 | ||
1521 | if (t != CONDITION_NULL) | |
1522 | unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, | |
1523 | "%s=%s%s%s", type_name, | |
1524 | trigger ? "|" : "", negate ? "!" : "", param); | |
1525 | else | |
1526 | unit_write_settingf(u, flags, name, | |
1527 | "%s=%s%s", type_name, | |
1528 | trigger ? "|" : "", yes_no(!negate)); | |
1529 | } | |
1530 | ||
1531 | empty = false; | |
1532 | } | |
1533 | if (r < 0) | |
1534 | return r; | |
1535 | ||
1536 | r = sd_bus_message_exit_container(message); | |
1537 | if (r < 0) | |
1538 | return r; | |
1539 | ||
1540 | if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) { | |
1541 | *list = condition_free_list(*list); | |
1542 | unit_write_settingf(u, flags, name, "%sNull=", is_condition ? "Condition" : "Assert"); | |
1543 | } | |
1544 | ||
1545 | return 1; | |
1546 | } | |
1547 | ||
721060d4 LP |
1548 | static int bus_unit_set_transient_property( |
1549 | Unit *u, | |
1550 | const char *name, | |
1551 | sd_bus_message *message, | |
1552 | UnitWriteFlags flags, | |
1553 | sd_bus_error *error) { | |
1554 | ||
faa781cf | 1555 | UnitDependency d = _UNIT_DEPENDENCY_INVALID; |
721060d4 | 1556 | int r; |
261420ba | 1557 | |
721060d4 LP |
1558 | assert(u); |
1559 | assert(name); | |
1560 | assert(message); | |
1561 | ||
1562 | /* Handles settings when transient units are created. This settings cannot be altered anymore after the unit | |
1563 | * has been created. */ | |
1564 | ||
faa781cf YW |
1565 | if (streq(name, "SourcePath")) |
1566 | return bus_set_transient_path(u, name, &u->source_path, message, flags, error); | |
261420ba | 1567 | |
faa781cf YW |
1568 | if (streq(name, "StopWhenUnneeded")) |
1569 | return bus_set_transient_bool(u, name, &u->stop_when_unneeded, message, flags, error); | |
261420ba | 1570 | |
faa781cf YW |
1571 | if (streq(name, "RefuseManualStart")) |
1572 | return bus_set_transient_bool(u, name, &u->refuse_manual_start, message, flags, error); | |
261420ba | 1573 | |
faa781cf YW |
1574 | if (streq(name, "RefuseManualStop")) |
1575 | return bus_set_transient_bool(u, name, &u->refuse_manual_stop, message, flags, error); | |
c221420b | 1576 | |
faa781cf YW |
1577 | if (streq(name, "AllowIsolate")) |
1578 | return bus_set_transient_bool(u, name, &u->allow_isolate, message, flags, error); | |
5afe510c | 1579 | |
faa781cf YW |
1580 | if (streq(name, "DefaultDependencies")) |
1581 | return bus_set_transient_bool(u, name, &u->default_dependencies, message, flags, error); | |
1582 | ||
1583 | if (streq(name, "OnFailureJobMode")) | |
1584 | return bus_set_transient_job_mode(u, name, &u->on_failure_job_mode, message, flags, error); | |
1585 | ||
1586 | if (streq(name, "IgnoreOnIsolate")) | |
1587 | return bus_set_transient_bool(u, name, &u->ignore_on_isolate, message, flags, error); | |
1588 | ||
1589 | if (streq(name, "JobTimeoutUSec")) { | |
1590 | r = bus_set_transient_usec_fix_0(u, name, &u->job_timeout, message, flags, error); | |
1591 | if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags) && !u->job_running_timeout_set) | |
1592 | u->job_running_timeout = u->job_timeout; | |
1593 | } | |
1594 | ||
1595 | if (streq(name, "JobRunningTimeoutUSec")) { | |
1596 | r = bus_set_transient_usec_fix_0(u, name, &u->job_running_timeout, message, flags, error); | |
1597 | if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags)) | |
1598 | u->job_running_timeout_set = true; | |
1599 | ||
1600 | return r; | |
1601 | } | |
1602 | ||
1603 | if (streq(name, "JobTimeoutAction")) | |
1604 | return bus_set_transient_emergency_action(u, name, &u->job_timeout_action, message, flags, error); | |
1605 | ||
1606 | if (streq(name, "JobTimeoutRebootArgument")) | |
1607 | return bus_set_transient_string(u, name, &u->job_timeout_reboot_arg, message, flags, error); | |
1608 | ||
1609 | if (streq(name, "StartLimitIntervalUSec")) | |
1610 | return bus_set_transient_usec(u, name, &u->start_limit.interval, message, flags, error); | |
1611 | ||
1612 | if (streq(name, "StartLimitBurst")) | |
1613 | return bus_set_transient_unsigned(u, name, &u->start_limit.burst, message, flags, error); | |
1614 | ||
1615 | if (streq(name, "StartLimitAction")) | |
1616 | return bus_set_transient_emergency_action(u, name, &u->start_limit_action, message, flags, error); | |
1617 | ||
1618 | if (streq(name, "FailureAction")) | |
1619 | return bus_set_transient_emergency_action(u, name, &u->failure_action, message, flags, error); | |
1620 | ||
1621 | if (streq(name, "SuccessAction")) | |
1622 | return bus_set_transient_emergency_action(u, name, &u->success_action, message, flags, error); | |
1623 | ||
1624 | if (streq(name, "RebootArgument")) | |
1625 | return bus_set_transient_string(u, name, &u->reboot_arg, message, flags, error); | |
1626 | ||
1627 | if (streq(name, "CollectMode")) | |
1628 | return bus_set_transient_collect_mode(u, name, &u->collect_mode, message, flags, error); | |
1629 | ||
1630 | if (streq(name, "Conditions")) | |
1631 | return bus_set_transient_conditions(u, name, &u->conditions, true, message, flags, error); | |
1632 | ||
1633 | if (streq(name, "Asserts")) | |
1634 | return bus_set_transient_conditions(u, name, &u->asserts, false, message, flags, error); | |
1635 | ||
1636 | if (streq(name, "Documentation")) { | |
1637 | _cleanup_strv_free_ char **l = NULL; | |
1638 | char **p; | |
1639 | ||
1640 | r = sd_bus_message_read_strv(message, &l); | |
5afe510c LP |
1641 | if (r < 0) |
1642 | return r; | |
1643 | ||
faa781cf YW |
1644 | STRV_FOREACH(p, l) { |
1645 | if (!documentation_url_is_valid(*p)) | |
1646 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid URL in %s: %s", name, *p); | |
1647 | } | |
5afe510c | 1648 | |
2e59b241 | 1649 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
faa781cf YW |
1650 | if (strv_isempty(l)) { |
1651 | u->documentation = strv_free(u->documentation); | |
1652 | unit_write_settingf(u, flags, name, "%s=", name); | |
1653 | } else { | |
1654 | strv_extend_strv(&u->documentation, l, false); | |
1655 | ||
1656 | STRV_FOREACH(p, l) | |
1657 | unit_write_settingf(u, flags, name, "%s=%s", name, *p); | |
1658 | } | |
5afe510c LP |
1659 | } |
1660 | ||
1661 | return 1; | |
1662 | ||
d79200e2 LP |
1663 | } else if (streq(name, "Slice")) { |
1664 | Unit *slice; | |
c221420b | 1665 | const char *s; |
c221420b | 1666 | |
d79200e2 LP |
1667 | if (!UNIT_HAS_CGROUP_CONTEXT(u)) |
1668 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups."); | |
1669 | if (u->type == UNIT_SLICE) | |
1670 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units."); | |
efdb0237 LP |
1671 | if (unit_has_name(u, SPECIAL_INIT_SCOPE)) |
1672 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope"); | |
d79200e2 | 1673 | |
718db961 LP |
1674 | r = sd_bus_message_read(message, "s", &s); |
1675 | if (r < 0) | |
1676 | return r; | |
c221420b | 1677 | |
d79200e2 LP |
1678 | if (!unit_name_is_valid(s, UNIT_NAME_PLAIN)) |
1679 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s); | |
1680 | ||
aea529e5 LP |
1681 | /* Note that we do not dispatch the load queue here yet, as we don't want our own transient unit to be |
1682 | * loaded while we are still setting it up. Or in other words, we use manager_load_unit_prepare() | |
1683 | * instead of manager_load_unit() on purpose, here. */ | |
1684 | r = manager_load_unit_prepare(u->manager, s, NULL, error, &slice); | |
d79200e2 LP |
1685 | if (r < 0) |
1686 | return r; | |
c221420b | 1687 | |
d79200e2 LP |
1688 | if (slice->type != UNIT_SLICE) |
1689 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s); | |
b9316fb0 | 1690 | |
2e59b241 | 1691 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
d79200e2 | 1692 | r = unit_set_slice(u, slice); |
8aec412f LP |
1693 | if (r < 0) |
1694 | return r; | |
c221420b | 1695 | |
2e59b241 | 1696 | unit_write_settingf(u, flags|UNIT_PRIVATE, name, "Slice=%s", s); |
8aec412f | 1697 | } |
b9ec9359 | 1698 | |
c221420b | 1699 | return 1; |
d79200e2 | 1700 | |
faa781cf YW |
1701 | } else if (streq(name, "RequiresMountsFor")) { |
1702 | _cleanup_strv_free_ char **l = NULL; | |
1703 | char **p; | |
1704 | ||
1705 | r = sd_bus_message_read_strv(message, &l); | |
1706 | if (r < 0) | |
1707 | return r; | |
1708 | ||
1709 | STRV_FOREACH(p, l) { | |
1710 | if (!path_is_absolute(*p)) | |
1711 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not absolute: %s", name, *p); | |
1712 | ||
1713 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
1714 | r = unit_require_mounts_for(u, *p, UNIT_DEPENDENCY_FILE); | |
1715 | if (r < 0) | |
1716 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to add required mount \"%s\": %m", *p); | |
7fb3ee51 | 1717 | |
faa781cf YW |
1718 | unit_write_settingf(u, flags, name, "%s=%s", name, *p); |
1719 | } | |
f32b43bd | 1720 | } |
7fb3ee51 | 1721 | |
faa781cf YW |
1722 | return 1; |
1723 | } | |
1724 | ||
1725 | if (streq(name, "RequiresOverridable")) | |
1726 | d = UNIT_REQUIRES; /* redirect for obsolete unit dependency type */ | |
1727 | else if (streq(name, "RequisiteOverridable")) | |
1728 | d = UNIT_REQUISITE; /* same here */ | |
1729 | else | |
1730 | d = unit_dependency_from_string(name); | |
1731 | ||
1732 | if (d >= 0) { | |
1733 | const char *other; | |
1734 | ||
718db961 LP |
1735 | r = sd_bus_message_enter_container(message, 'a', "s"); |
1736 | if (r < 0) | |
1737 | return r; | |
7fb3ee51 | 1738 | |
718db961 | 1739 | while ((r = sd_bus_message_read(message, "s", &other)) > 0) { |
7410616c | 1740 | if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
718db961 | 1741 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other); |
7fb3ee51 | 1742 | |
2e59b241 | 1743 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
b9ec9359 | 1744 | _cleanup_free_ char *label = NULL; |
7fb3ee51 | 1745 | |
eef85c4a | 1746 | r = unit_add_dependency_by_name(u, d, other, NULL, true, UNIT_DEPENDENCY_FILE); |
7fb3ee51 LP |
1747 | if (r < 0) |
1748 | return r; | |
1749 | ||
605405c6 | 1750 | label = strjoin(name, "-", other); |
7fb3ee51 LP |
1751 | if (!label) |
1752 | return -ENOMEM; | |
1753 | ||
faa781cf | 1754 | unit_write_settingf(u, flags, label, "%s=%s", unit_dependency_to_string(d), other); |
7fb3ee51 LP |
1755 | } |
1756 | ||
7fb3ee51 | 1757 | } |
718db961 LP |
1758 | if (r < 0) |
1759 | return r; | |
7fb3ee51 | 1760 | |
6ce270b1 LP |
1761 | r = sd_bus_message_exit_container(message); |
1762 | if (r < 0) | |
1763 | return r; | |
1764 | ||
7fb3ee51 | 1765 | return 1; |
05a98afd LP |
1766 | |
1767 | } else if (streq(name, "AddRef")) { | |
1768 | ||
1769 | int b; | |
1770 | ||
1771 | /* Why is this called "AddRef" rather than just "Ref", or "Reference"? There's already a "Ref()" method | |
1772 | * on the Unit interface, and it's probably not a good idea to expose a property and a method on the | |
1773 | * same interface (well, strictly speaking AddRef isn't exposed as full property, we just read it for | |
1774 | * transient units, but still). And "References" and "ReferencedBy" is already used as unit reference | |
1775 | * dependency type, hence let's not confuse things with that. | |
1776 | * | |
1777 | * Note that we don't acually add the reference to the bus track. We do that only after the setup of | |
1778 | * the transient unit is complete, so that setting this property multiple times in the same transient | |
1779 | * unit creation call doesn't count as individual references. */ | |
1780 | ||
1781 | r = sd_bus_message_read(message, "b", &b); | |
1782 | if (r < 0) | |
1783 | return r; | |
1784 | ||
2e59b241 | 1785 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) |
05a98afd LP |
1786 | u->bus_track_add = b; |
1787 | ||
1788 | return 1; | |
9f2e86af LP |
1789 | } |
1790 | ||
1791 | return 0; | |
1792 | } | |
1793 | ||
c2756a68 LP |
1794 | int bus_unit_set_properties( |
1795 | Unit *u, | |
718db961 | 1796 | sd_bus_message *message, |
2e59b241 | 1797 | UnitWriteFlags flags, |
c2756a68 | 1798 | bool commit, |
718db961 | 1799 | sd_bus_error *error) { |
c2756a68 | 1800 | |
8e2af478 | 1801 | bool for_real = false; |
8e2af478 LP |
1802 | unsigned n = 0; |
1803 | int r; | |
1804 | ||
1805 | assert(u); | |
718db961 | 1806 | assert(message); |
8e2af478 LP |
1807 | |
1808 | /* We iterate through the array twice. First run we just check | |
1809 | * if all passed data is valid, second run actually applies | |
1810 | * it. This is to implement transaction-like behaviour without | |
1811 | * actually providing full transactions. */ | |
1812 | ||
718db961 LP |
1813 | r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
1814 | if (r < 0) | |
1815 | return r; | |
8e2af478 | 1816 | |
8e2af478 | 1817 | for (;;) { |
8e2af478 | 1818 | const char *name; |
2e59b241 | 1819 | UnitWriteFlags f; |
8e2af478 | 1820 | |
718db961 LP |
1821 | r = sd_bus_message_enter_container(message, 'r', "sv"); |
1822 | if (r < 0) | |
1823 | return r; | |
1824 | if (r == 0) { | |
2e59b241 | 1825 | if (for_real || UNIT_WRITE_FLAGS_NOOP(flags)) |
8e2af478 LP |
1826 | break; |
1827 | ||
1828 | /* Reached EOF. Let's try again, and this time for realz... */ | |
718db961 LP |
1829 | r = sd_bus_message_rewind(message, false); |
1830 | if (r < 0) | |
1831 | return r; | |
6ce270b1 | 1832 | |
8e2af478 LP |
1833 | for_real = true; |
1834 | continue; | |
1835 | } | |
1836 | ||
718db961 LP |
1837 | r = sd_bus_message_read(message, "s", &name); |
1838 | if (r < 0) | |
1839 | return r; | |
8e2af478 | 1840 | |
718db961 LP |
1841 | if (!UNIT_VTABLE(u)->bus_set_property) |
1842 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties."); | |
8e2af478 | 1843 | |
718db961 LP |
1844 | r = sd_bus_message_enter_container(message, 'v', NULL); |
1845 | if (r < 0) | |
1846 | return r; | |
8e2af478 | 1847 | |
2e59b241 LP |
1848 | /* If not for real, then mask out the two target flags */ |
1849 | f = for_real ? flags : (flags & ~(UNIT_RUNTIME|UNIT_PERSISTENT)); | |
1850 | ||
1851 | r = UNIT_VTABLE(u)->bus_set_property(u, name, message, f, error); | |
9f2e86af | 1852 | if (r == 0 && u->transient && u->load_state == UNIT_STUB) |
2e59b241 | 1853 | r = bus_unit_set_transient_property(u, name, message, f, error); |
721060d4 LP |
1854 | if (r == 0) |
1855 | r = bus_unit_set_live_property(u, name, message, f, error); | |
718db961 LP |
1856 | if (r < 0) |
1857 | return r; | |
721060d4 | 1858 | |
718db961 LP |
1859 | if (r == 0) |
1860 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name); | |
1861 | ||
1862 | r = sd_bus_message_exit_container(message); | |
8e2af478 LP |
1863 | if (r < 0) |
1864 | return r; | |
8e2af478 | 1865 | |
718db961 LP |
1866 | r = sd_bus_message_exit_container(message); |
1867 | if (r < 0) | |
1868 | return r; | |
8e2af478 LP |
1869 | |
1870 | n += for_real; | |
1871 | } | |
1872 | ||
6ce270b1 LP |
1873 | r = sd_bus_message_exit_container(message); |
1874 | if (r < 0) | |
1875 | return r; | |
1876 | ||
c2756a68 | 1877 | if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties) |
8e2af478 LP |
1878 | UNIT_VTABLE(u)->bus_commit_properties(u); |
1879 | ||
241da328 | 1880 | return n; |
8e2af478 | 1881 | } |
000a996d FB |
1882 | |
1883 | int bus_unit_check_load_state(Unit *u, sd_bus_error *error) { | |
6eb7c172 | 1884 | assert(u); |
000a996d FB |
1885 | |
1886 | if (u->load_state == UNIT_LOADED) | |
1887 | return 0; | |
1888 | ||
1889 | /* Give a better description of the unit error when | |
1890 | * possible. Note that in the case of UNIT_MASKED, load_error | |
1891 | * is not set. */ | |
1892 | if (u->load_state == UNIT_MASKED) | |
b21d2f81 | 1893 | return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit %s is masked.", u->id); |
000a996d FB |
1894 | |
1895 | if (u->load_state == UNIT_NOT_FOUND) | |
b21d2f81 | 1896 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not found.", u->id); |
000a996d | 1897 | |
b21d2f81 | 1898 | return sd_bus_error_set_errnof(error, u->load_error, "Unit %s is not loaded properly: %m.", u->id); |
000a996d | 1899 | } |
05a98afd | 1900 | |
c5a97ed1 | 1901 | static int bus_unit_track_handler(sd_bus_track *t, void *userdata) { |
05a98afd LP |
1902 | Unit *u = userdata; |
1903 | ||
1904 | assert(t); | |
1905 | assert(u); | |
1906 | ||
1907 | u->bus_track = sd_bus_track_unref(u->bus_track); /* make sure we aren't called again */ | |
1908 | ||
1909 | unit_add_to_gc_queue(u); | |
1910 | return 0; | |
1911 | } | |
1912 | ||
c5a97ed1 | 1913 | static int bus_unit_allocate_bus_track(Unit *u) { |
05a98afd LP |
1914 | int r; |
1915 | ||
1916 | assert(u); | |
1917 | ||
1918 | if (u->bus_track) | |
1919 | return 0; | |
1920 | ||
c5a97ed1 | 1921 | r = sd_bus_track_new(u->manager->api_bus, &u->bus_track, bus_unit_track_handler, u); |
05a98afd LP |
1922 | if (r < 0) |
1923 | return r; | |
1924 | ||
1925 | r = sd_bus_track_set_recursive(u->bus_track, true); | |
1926 | if (r < 0) { | |
1927 | u->bus_track = sd_bus_track_unref(u->bus_track); | |
1928 | return r; | |
1929 | } | |
1930 | ||
1931 | return 0; | |
1932 | } | |
1933 | ||
1934 | int bus_unit_track_add_name(Unit *u, const char *name) { | |
1935 | int r; | |
1936 | ||
1937 | assert(u); | |
1938 | ||
c5a97ed1 | 1939 | r = bus_unit_allocate_bus_track(u); |
05a98afd LP |
1940 | if (r < 0) |
1941 | return r; | |
1942 | ||
1943 | return sd_bus_track_add_name(u->bus_track, name); | |
1944 | } | |
1945 | ||
1946 | int bus_unit_track_add_sender(Unit *u, sd_bus_message *m) { | |
1947 | int r; | |
1948 | ||
1949 | assert(u); | |
1950 | ||
c5a97ed1 | 1951 | r = bus_unit_allocate_bus_track(u); |
05a98afd LP |
1952 | if (r < 0) |
1953 | return r; | |
1954 | ||
1955 | return sd_bus_track_add_sender(u->bus_track, m); | |
1956 | } | |
1957 | ||
1958 | int bus_unit_track_remove_sender(Unit *u, sd_bus_message *m) { | |
1959 | assert(u); | |
1960 | ||
1961 | /* If we haven't allocated the bus track object yet, then there's definitely no reference taken yet, return an | |
1962 | * error */ | |
1963 | if (!u->bus_track) | |
1964 | return -EUNATCH; | |
1965 | ||
1966 | return sd_bus_track_remove_sender(u->bus_track, m); | |
1967 | } |