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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 | ||
718db961 | 22 | #include "sd-bus.h" |
ea430986 | 23 | #include "log.h" |
e2417e41 | 24 | #include "selinux-access.h" |
246aa6dd LP |
25 | #include "cgroup-util.h" |
26 | #include "strv.h" | |
96aad8d1 | 27 | #include "bus-common-errors.h" |
efdb0237 | 28 | #include "special.h" |
8f8f05a9 | 29 | #include "dbus.h" |
8f8f05a9 | 30 | #include "dbus-unit.h" |
718db961 LP |
31 | |
32 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState); | |
d420282b | 33 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode); |
f189ab18 | 34 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_failure_action, failure_action, FailureAction); |
718db961 LP |
35 | |
36 | static int property_get_names( | |
37 | sd_bus *bus, | |
38 | const char *path, | |
39 | const char *interface, | |
40 | const char *property, | |
41 | sd_bus_message *reply, | |
ebcf1f97 LP |
42 | void *userdata, |
43 | sd_bus_error *error) { | |
718db961 LP |
44 | |
45 | Unit *u = userdata; | |
46 | Iterator i; | |
47 | const char *t; | |
48 | int r; | |
ea430986 | 49 | |
718db961 LP |
50 | assert(bus); |
51 | assert(reply); | |
52 | assert(u); | |
4139c1b2 | 53 | |
718db961 LP |
54 | r = sd_bus_message_open_container(reply, 'a', "s"); |
55 | if (r < 0) | |
56 | return r; | |
4139c1b2 | 57 | |
718db961 LP |
58 | SET_FOREACH(t, u->names, i) { |
59 | r = sd_bus_message_append(reply, "s", t); | |
60 | if (r < 0) | |
61 | return r; | |
62 | } | |
4139c1b2 | 63 | |
718db961 | 64 | return sd_bus_message_close_container(reply); |
4139c1b2 LP |
65 | } |
66 | ||
718db961 LP |
67 | static int property_get_following( |
68 | sd_bus *bus, | |
69 | const char *path, | |
70 | const char *interface, | |
71 | const char *property, | |
72 | sd_bus_message *reply, | |
ebcf1f97 LP |
73 | void *userdata, |
74 | sd_bus_error *error) { | |
718db961 LP |
75 | |
76 | Unit *u = userdata, *f; | |
8fe914ec | 77 | |
718db961 LP |
78 | assert(bus); |
79 | assert(reply); | |
8fe914ec LP |
80 | assert(u); |
81 | ||
a7f241db | 82 | f = unit_following(u); |
718db961 | 83 | return sd_bus_message_append(reply, "s", f ? f->id : ""); |
8fe914ec LP |
84 | } |
85 | ||
718db961 LP |
86 | static int property_get_dependencies( |
87 | sd_bus *bus, | |
88 | const char *path, | |
89 | const char *interface, | |
90 | const char *property, | |
91 | sd_bus_message *reply, | |
ebcf1f97 LP |
92 | void *userdata, |
93 | sd_bus_error *error) { | |
4ec9a8a4 | 94 | |
718db961 | 95 | Set *s = *(Set**) userdata; |
5301be81 | 96 | Iterator j; |
718db961 LP |
97 | Unit *u; |
98 | int r; | |
5301be81 | 99 | |
718db961 LP |
100 | assert(bus); |
101 | assert(reply); | |
5301be81 | 102 | |
718db961 LP |
103 | r = sd_bus_message_open_container(reply, 'a', "s"); |
104 | if (r < 0) | |
105 | return r; | |
5301be81 | 106 | |
718db961 LP |
107 | SET_FOREACH(u, s, j) { |
108 | r = sd_bus_message_append(reply, "s", u->id); | |
109 | if (r < 0) | |
110 | return r; | |
111 | } | |
5301be81 | 112 | |
718db961 | 113 | return sd_bus_message_close_container(reply); |
5301be81 LP |
114 | } |
115 | ||
718db961 LP |
116 | static int property_get_description( |
117 | sd_bus *bus, | |
118 | const char *path, | |
119 | const char *interface, | |
120 | const char *property, | |
121 | sd_bus_message *reply, | |
ebcf1f97 LP |
122 | void *userdata, |
123 | sd_bus_error *error) { | |
ea430986 | 124 | |
718db961 | 125 | Unit *u = userdata; |
ea430986 | 126 | |
718db961 LP |
127 | assert(bus); |
128 | assert(reply); | |
129 | assert(u); | |
ea430986 | 130 | |
718db961 | 131 | return sd_bus_message_append(reply, "s", unit_description(u)); |
ea430986 LP |
132 | } |
133 | ||
718db961 LP |
134 | static int property_get_active_state( |
135 | sd_bus *bus, | |
136 | const char *path, | |
137 | const char *interface, | |
138 | const char *property, | |
139 | sd_bus_message *reply, | |
ebcf1f97 LP |
140 | void *userdata, |
141 | sd_bus_error *error) { | |
ea430986 | 142 | |
718db961 | 143 | Unit *u = userdata; |
ea430986 | 144 | |
718db961 LP |
145 | assert(bus); |
146 | assert(reply); | |
ea430986 LP |
147 | assert(u); |
148 | ||
718db961 | 149 | return sd_bus_message_append(reply, "s", unit_active_state_to_string(unit_active_state(u))); |
ea430986 LP |
150 | } |
151 | ||
718db961 LP |
152 | static int property_get_sub_state( |
153 | sd_bus *bus, | |
154 | const char *path, | |
155 | const char *interface, | |
156 | const char *property, | |
157 | sd_bus_message *reply, | |
ebcf1f97 LP |
158 | void *userdata, |
159 | sd_bus_error *error) { | |
10a94420 | 160 | |
718db961 | 161 | Unit *u = userdata; |
10a94420 | 162 | |
718db961 LP |
163 | assert(bus); |
164 | assert(reply); | |
165 | assert(u); | |
10a94420 | 166 | |
718db961 | 167 | return sd_bus_message_append(reply, "s", unit_sub_state_to_string(u)); |
10a94420 LP |
168 | } |
169 | ||
d2dc52db LP |
170 | static int property_get_unit_file_preset( |
171 | sd_bus *bus, | |
172 | const char *path, | |
173 | const char *interface, | |
174 | const char *property, | |
175 | sd_bus_message *reply, | |
176 | void *userdata, | |
177 | sd_bus_error *error) { | |
178 | ||
179 | Unit *u = userdata; | |
180 | int r; | |
181 | ||
182 | assert(bus); | |
183 | assert(reply); | |
184 | assert(u); | |
185 | ||
186 | r = unit_get_unit_file_preset(u); | |
187 | ||
188 | return sd_bus_message_append(reply, "s", | |
189 | r < 0 ? "": | |
190 | r > 0 ? "enabled" : "disabled"); | |
191 | } | |
192 | ||
718db961 LP |
193 | static int property_get_unit_file_state( |
194 | sd_bus *bus, | |
195 | const char *path, | |
196 | const char *interface, | |
197 | const char *property, | |
198 | sd_bus_message *reply, | |
ebcf1f97 LP |
199 | void *userdata, |
200 | sd_bus_error *error) { | |
a4375746 | 201 | |
718db961 | 202 | Unit *u = userdata; |
a4375746 | 203 | |
718db961 LP |
204 | assert(bus); |
205 | assert(reply); | |
206 | assert(u); | |
a4375746 | 207 | |
76445832 | 208 | return sd_bus_message_append(reply, "s", unit_file_state_to_string(unit_get_unit_file_state(u))); |
a4375746 LP |
209 | } |
210 | ||
718db961 LP |
211 | static int property_get_can_start( |
212 | sd_bus *bus, | |
213 | const char *path, | |
214 | const char *interface, | |
215 | const char *property, | |
216 | sd_bus_message *reply, | |
ebcf1f97 LP |
217 | void *userdata, |
218 | sd_bus_error *error) { | |
38131695 | 219 | |
718db961 | 220 | Unit *u = userdata; |
b5e9dba8 | 221 | |
718db961 LP |
222 | assert(bus); |
223 | assert(reply); | |
224 | assert(u); | |
b5e9dba8 | 225 | |
718db961 | 226 | return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_start); |
b5e9dba8 LP |
227 | } |
228 | ||
718db961 LP |
229 | static int property_get_can_stop( |
230 | sd_bus *bus, | |
231 | const char *path, | |
232 | const char *interface, | |
233 | const char *property, | |
234 | sd_bus_message *reply, | |
ebcf1f97 LP |
235 | void *userdata, |
236 | sd_bus_error *error) { | |
718db961 LP |
237 | |
238 | Unit *u = userdata; | |
b5e9dba8 | 239 | |
718db961 LP |
240 | assert(bus); |
241 | assert(reply); | |
b5e9dba8 LP |
242 | assert(u); |
243 | ||
244 | /* On the lower levels we assume that every unit we can start | |
245 | * we can also stop */ | |
246 | ||
718db961 | 247 | return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_stop); |
38131695 LP |
248 | } |
249 | ||
718db961 LP |
250 | static int property_get_can_reload( |
251 | sd_bus *bus, | |
252 | const char *path, | |
253 | const char *interface, | |
254 | const char *property, | |
255 | sd_bus_message *reply, | |
ebcf1f97 LP |
256 | void *userdata, |
257 | sd_bus_error *error) { | |
38131695 | 258 | |
718db961 | 259 | Unit *u = userdata; |
38131695 | 260 | |
718db961 LP |
261 | assert(bus); |
262 | assert(reply); | |
263 | assert(u); | |
38131695 | 264 | |
718db961 | 265 | return sd_bus_message_append(reply, "b", unit_can_reload(u)); |
38131695 LP |
266 | } |
267 | ||
718db961 LP |
268 | static int property_get_can_isolate( |
269 | sd_bus *bus, | |
270 | const char *path, | |
271 | const char *interface, | |
272 | const char *property, | |
273 | sd_bus_message *reply, | |
ebcf1f97 LP |
274 | void *userdata, |
275 | sd_bus_error *error) { | |
2528a7a6 | 276 | |
718db961 | 277 | Unit *u = userdata; |
2528a7a6 | 278 | |
718db961 LP |
279 | assert(bus); |
280 | assert(reply); | |
281 | assert(u); | |
2528a7a6 | 282 | |
718db961 | 283 | return sd_bus_message_append(reply, "b", unit_can_isolate(u) && !u->refuse_manual_start); |
2528a7a6 LP |
284 | } |
285 | ||
718db961 LP |
286 | static int property_get_job( |
287 | sd_bus *bus, | |
288 | const char *path, | |
289 | const char *interface, | |
290 | const char *property, | |
291 | sd_bus_message *reply, | |
ebcf1f97 LP |
292 | void *userdata, |
293 | sd_bus_error *error) { | |
718db961 | 294 | |
f93891f3 | 295 | _cleanup_free_ char *p = NULL; |
718db961 | 296 | Unit *u = userdata; |
38131695 | 297 | |
718db961 LP |
298 | assert(bus); |
299 | assert(reply); | |
38131695 LP |
300 | assert(u); |
301 | ||
718db961 LP |
302 | if (!u->job) |
303 | return sd_bus_message_append(reply, "(uo)", 0, "/"); | |
38131695 | 304 | |
718db961 LP |
305 | p = job_dbus_path(u->job); |
306 | if (!p) | |
307 | return -ENOMEM; | |
38131695 | 308 | |
718db961 LP |
309 | return sd_bus_message_append(reply, "(uo)", u->job->id, p); |
310 | } | |
38131695 | 311 | |
718db961 LP |
312 | static int property_get_need_daemon_reload( |
313 | sd_bus *bus, | |
314 | const char *path, | |
315 | const char *interface, | |
316 | const char *property, | |
317 | sd_bus_message *reply, | |
ebcf1f97 LP |
318 | void *userdata, |
319 | sd_bus_error *error) { | |
38131695 | 320 | |
718db961 | 321 | Unit *u = userdata; |
38131695 | 322 | |
718db961 LP |
323 | assert(bus); |
324 | assert(reply); | |
325 | assert(u); | |
38131695 | 326 | |
718db961 | 327 | return sd_bus_message_append(reply, "b", unit_need_daemon_reload(u)); |
38131695 LP |
328 | } |
329 | ||
718db961 LP |
330 | static int property_get_conditions( |
331 | sd_bus *bus, | |
332 | const char *path, | |
333 | const char *interface, | |
334 | const char *property, | |
335 | sd_bus_message *reply, | |
ebcf1f97 LP |
336 | void *userdata, |
337 | sd_bus_error *error) { | |
45fb0699 | 338 | |
59fccdc5 LP |
339 | const char *(*to_string)(ConditionType type) = NULL; |
340 | Condition **list = userdata, *c; | |
718db961 | 341 | int r; |
45fb0699 | 342 | |
718db961 LP |
343 | assert(bus); |
344 | assert(reply); | |
59fccdc5 LP |
345 | assert(list); |
346 | ||
347 | to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string; | |
45fb0699 | 348 | |
718db961 LP |
349 | r = sd_bus_message_open_container(reply, 'a', "(sbbsi)"); |
350 | if (r < 0) | |
351 | return r; | |
45fb0699 | 352 | |
59fccdc5 | 353 | LIST_FOREACH(conditions, c, *list) { |
cc50ef13 LP |
354 | int tristate; |
355 | ||
356 | tristate = | |
357 | c->result == CONDITION_UNTESTED ? 0 : | |
358 | c->result == CONDITION_SUCCEEDED ? 1 : -1; | |
359 | ||
2c7e050f | 360 | r = sd_bus_message_append(reply, "(sbbsi)", |
59fccdc5 | 361 | to_string(c->type), |
2c7e050f | 362 | c->trigger, c->negate, |
cc50ef13 | 363 | c->parameter, tristate); |
718db961 LP |
364 | if (r < 0) |
365 | return r; | |
45fb0699 | 366 | |
718db961 | 367 | } |
52990c2e | 368 | |
718db961 | 369 | return sd_bus_message_close_container(reply); |
52990c2e ZJS |
370 | } |
371 | ||
718db961 LP |
372 | static int property_get_load_error( |
373 | sd_bus *bus, | |
374 | const char *path, | |
375 | const char *interface, | |
376 | const char *property, | |
377 | sd_bus_message *reply, | |
ebcf1f97 LP |
378 | void *userdata, |
379 | sd_bus_error *error) { | |
52990c2e | 380 | |
718db961 LP |
381 | _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL; |
382 | Unit *u = userdata; | |
52990c2e | 383 | |
718db961 LP |
384 | assert(bus); |
385 | assert(reply); | |
386 | assert(u); | |
52990c2e | 387 | |
718db961 LP |
388 | if (u->load_error != 0) |
389 | sd_bus_error_set_errno(&e, u->load_error); | |
52990c2e | 390 | |
718db961 | 391 | return sd_bus_message_append(reply, "(ss)", e.name, e.message); |
52990c2e ZJS |
392 | } |
393 | ||
88ced61b MC |
394 | static int bus_verify_manage_units_async_full( |
395 | Unit *u, | |
396 | const char *verb, | |
397 | int capability, | |
398 | const char *polkit_message, | |
399 | sd_bus_message *call, | |
400 | sd_bus_error *error) { | |
401 | ||
402 | const char *details[9] = { | |
403 | "unit", u->id, | |
404 | "verb", verb, | |
405 | }; | |
406 | ||
407 | if (polkit_message) { | |
408 | details[4] = "polkit.message"; | |
409 | details[5] = polkit_message; | |
410 | details[6] = "polkit.gettext_domain"; | |
411 | details[7] = GETTEXT_PACKAGE; | |
412 | } | |
413 | ||
414 | return bus_verify_polkit_async(call, capability, "org.freedesktop.systemd1.manage-units", details, false, UID_INVALID, &u->manager->polkit_registry, error); | |
415 | } | |
416 | ||
1d22e906 | 417 | int bus_unit_method_start_generic( |
1d22e906 LP |
418 | sd_bus_message *message, |
419 | Unit *u, | |
420 | JobType job_type, | |
421 | bool reload_if_possible, | |
422 | sd_bus_error *error) { | |
423 | ||
718db961 LP |
424 | const char *smode; |
425 | JobMode mode; | |
88ced61b MC |
426 | _cleanup_free_ char *verb = NULL; |
427 | static const char *const polkit_message_for_job[_JOB_TYPE_MAX] = { | |
428 | [JOB_START] = N_("Authentication is required to start '$(unit)'."), | |
429 | [JOB_STOP] = N_("Authentication is required to stop '$(unit)'."), | |
430 | [JOB_RELOAD] = N_("Authentication is required to reload '$(unit)'."), | |
431 | [JOB_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
432 | [JOB_TRY_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
433 | }; | |
718db961 | 434 | int r; |
9f39404c | 435 | |
718db961 | 436 | assert(message); |
9f39404c | 437 | assert(u); |
718db961 | 438 | assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); |
9f39404c | 439 | |
1d22e906 LP |
440 | r = mac_selinux_unit_access_check(u, message, job_type == JOB_STOP ? "stop" : "start", error); |
441 | if (r < 0) | |
442 | return r; | |
443 | ||
718db961 LP |
444 | r = sd_bus_message_read(message, "s", &smode); |
445 | if (r < 0) | |
ebcf1f97 | 446 | return r; |
9f39404c | 447 | |
718db961 LP |
448 | mode = job_mode_from_string(smode); |
449 | if (mode < 0) | |
ebcf1f97 | 450 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); |
9f39404c | 451 | |
88ced61b MC |
452 | if (reload_if_possible) |
453 | verb = strjoin("reload-or-", job_type_to_string(job_type), NULL); | |
454 | else | |
455 | verb = strdup(job_type_to_string(job_type)); | |
456 | if (!verb) | |
457 | return -ENOMEM; | |
458 | ||
459 | r = bus_verify_manage_units_async_full( | |
460 | u, | |
461 | verb, | |
462 | CAP_SYS_ADMIN, | |
463 | job_type < _JOB_TYPE_MAX ? polkit_message_for_job[job_type] : NULL, | |
464 | message, | |
465 | error); | |
1d22e906 LP |
466 | if (r < 0) |
467 | return r; | |
468 | if (r == 0) | |
469 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
470 | ||
19070062 | 471 | return bus_unit_queue_job(message, u, job_type, mode, reload_if_possible, error); |
9f39404c LP |
472 | } |
473 | ||
19070062 LP |
474 | static int method_start(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
475 | return bus_unit_method_start_generic(message, userdata, JOB_START, false, error); | |
718db961 | 476 | } |
b548631a | 477 | |
19070062 LP |
478 | static int method_stop(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
479 | return bus_unit_method_start_generic(message, userdata, JOB_STOP, false, error); | |
718db961 LP |
480 | } |
481 | ||
19070062 LP |
482 | static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
483 | return bus_unit_method_start_generic(message, userdata, JOB_RELOAD, false, error); | |
718db961 | 484 | } |
0a524ba7 | 485 | |
19070062 LP |
486 | static int method_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
487 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, false, error); | |
718db961 | 488 | } |
8a0867d6 | 489 | |
19070062 LP |
490 | static int method_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
491 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, false, error); | |
718db961 | 492 | } |
cad45ba1 | 493 | |
19070062 LP |
494 | static int method_reload_or_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
495 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, true, error); | |
718db961 | 496 | } |
8a0867d6 | 497 | |
19070062 LP |
498 | static int method_reload_or_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
499 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, true, error); | |
718db961 | 500 | } |
8a0867d6 | 501 | |
19070062 | 502 | int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 LP |
503 | Unit *u = userdata; |
504 | const char *swho; | |
505 | int32_t signo; | |
506 | KillWho who; | |
507 | int r; | |
5632e374 | 508 | |
718db961 LP |
509 | assert(message); |
510 | assert(u); | |
cad45ba1 | 511 | |
1d22e906 | 512 | r = mac_selinux_unit_access_check(u, message, "stop", error); |
283868e1 SW |
513 | if (r < 0) |
514 | return r; | |
283868e1 | 515 | |
718db961 LP |
516 | r = sd_bus_message_read(message, "si", &swho, &signo); |
517 | if (r < 0) | |
ebcf1f97 | 518 | return r; |
718db961 LP |
519 | |
520 | if (isempty(swho)) | |
521 | who = KILL_ALL; | |
522 | else { | |
523 | who = kill_who_from_string(swho); | |
524 | if (who < 0) | |
ebcf1f97 | 525 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho); |
718db961 | 526 | } |
5632e374 | 527 | |
718db961 | 528 | if (signo <= 0 || signo >= _NSIG) |
ebcf1f97 | 529 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range."); |
8e2af478 | 530 | |
88ced61b MC |
531 | r = bus_verify_manage_units_async_full( |
532 | u, | |
533 | "kill", | |
534 | CAP_KILL, | |
535 | N_("Authentication is required to kill '$(unit)'."), | |
536 | message, | |
537 | error); | |
ebcf1f97 LP |
538 | if (r < 0) |
539 | return r; | |
1d22e906 LP |
540 | if (r == 0) |
541 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
8e2af478 | 542 | |
ebcf1f97 | 543 | r = unit_kill(u, who, signo, error); |
718db961 | 544 | if (r < 0) |
ebcf1f97 | 545 | return r; |
8e2af478 | 546 | |
df2d202e | 547 | return sd_bus_reply_method_return(message, NULL); |
718db961 | 548 | } |
8e2af478 | 549 | |
19070062 | 550 | int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 | 551 | Unit *u = userdata; |
ebcf1f97 | 552 | int r; |
b548631a | 553 | |
718db961 LP |
554 | assert(message); |
555 | assert(u); | |
b548631a | 556 | |
1d22e906 | 557 | r = mac_selinux_unit_access_check(u, message, "reload", error); |
283868e1 SW |
558 | if (r < 0) |
559 | return r; | |
283868e1 | 560 | |
88ced61b MC |
561 | r = bus_verify_manage_units_async_full( |
562 | u, | |
563 | "reset-failed", | |
564 | CAP_SYS_ADMIN, | |
565 | N_("Authentication is required to reset the \"failed\" state of '$(unit)'."), | |
566 | message, | |
567 | error); | |
ebcf1f97 LP |
568 | if (r < 0) |
569 | return r; | |
1d22e906 LP |
570 | if (r == 0) |
571 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
b548631a | 572 | |
718db961 | 573 | unit_reset_failed(u); |
b548631a | 574 | |
df2d202e | 575 | return sd_bus_reply_method_return(message, NULL); |
ea430986 LP |
576 | } |
577 | ||
19070062 | 578 | int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
718db961 LP |
579 | Unit *u = userdata; |
580 | int runtime, r; | |
ea430986 | 581 | |
ea430986 | 582 | assert(message); |
718db961 | 583 | assert(u); |
80fbf05e | 584 | |
1d22e906 | 585 | r = mac_selinux_unit_access_check(u, message, "start", error); |
283868e1 SW |
586 | if (r < 0) |
587 | return r; | |
283868e1 | 588 | |
718db961 LP |
589 | r = sd_bus_message_read(message, "b", &runtime); |
590 | if (r < 0) | |
ebcf1f97 | 591 | return r; |
2cccbca4 | 592 | |
88ced61b MC |
593 | r = bus_verify_manage_units_async_full( |
594 | u, | |
595 | "set-property", | |
596 | CAP_SYS_ADMIN, | |
597 | N_("Authentication is required to set properties on '$(unit)'."), | |
598 | message, | |
599 | error); | |
ebcf1f97 LP |
600 | if (r < 0) |
601 | return r; | |
1d22e906 LP |
602 | if (r == 0) |
603 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
cad45ba1 | 604 | |
ebcf1f97 | 605 | r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error); |
718db961 | 606 | if (r < 0) |
ebcf1f97 | 607 | return r; |
2cccbca4 | 608 | |
df2d202e | 609 | return sd_bus_reply_method_return(message, NULL); |
718db961 | 610 | } |
2cccbca4 | 611 | |
718db961 LP |
612 | const sd_bus_vtable bus_unit_vtable[] = { |
613 | SD_BUS_VTABLE_START(0), | |
614 | ||
556089dc LP |
615 | SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), SD_BUS_VTABLE_PROPERTY_CONST), |
616 | SD_BUS_PROPERTY("Names", "as", property_get_names, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 617 | SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0), |
556089dc LP |
618 | SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES]), SD_BUS_VTABLE_PROPERTY_CONST), |
619 | SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES_OVERRIDABLE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
620 | SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
621 | SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OVERRIDABLE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
622 | SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
623 | SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BINDS_TO]), SD_BUS_VTABLE_PROPERTY_CONST), | |
624 | SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PART_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
625 | SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
626 | SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY_OVERRIDABLE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
be7d9ff7 LP |
627 | SD_BUS_PROPERTY("RequisiteOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
628 | SD_BUS_PROPERTY("RequisiteOfOverridable", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OF_OVERRIDABLE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
556089dc LP |
629 | SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
630 | SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BOUND_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
631 | SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
632 | SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
633 | SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
634 | SD_BUS_PROPERTY("Before", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BEFORE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
635 | SD_BUS_PROPERTY("After", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_AFTER]), SD_BUS_VTABLE_PROPERTY_CONST), | |
636 | SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_ON_FAILURE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
637 | SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
638 | SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
639 | SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), SD_BUS_VTABLE_PROPERTY_CONST), | |
640 | SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), SD_BUS_VTABLE_PROPERTY_CONST), | |
641 | SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_JOINS_NAMESPACE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
642 | SD_BUS_PROPERTY("RequiresMountsFor", "as", NULL, offsetof(Unit, requires_mounts_for), SD_BUS_VTABLE_PROPERTY_CONST), | |
643 | SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST), | |
644 | SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
645 | SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 LP |
646 | SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
647 | SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
556089dc LP |
648 | SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), SD_BUS_VTABLE_PROPERTY_CONST), |
649 | SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), SD_BUS_VTABLE_PROPERTY_CONST), | |
650 | SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 651 | SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0), |
d2dc52db | 652 | SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0), |
718db961 LP |
653 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
654 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
655 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
656 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
556089dc LP |
657 | SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
658 | SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
659 | SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
660 | SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 661 | SD_BUS_PROPERTY("Job", "(uo)", property_get_job, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
556089dc LP |
662 | SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), SD_BUS_VTABLE_PROPERTY_CONST), |
663 | SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), SD_BUS_VTABLE_PROPERTY_CONST), | |
664 | SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), SD_BUS_VTABLE_PROPERTY_CONST), | |
665 | SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
666 | SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), SD_BUS_VTABLE_PROPERTY_CONST), | |
667 | SD_BUS_PROPERTY("OnFailureJobMode", "s", property_get_job_mode, offsetof(Unit, on_failure_job_mode), SD_BUS_VTABLE_PROPERTY_CONST), | |
668 | SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
669 | SD_BUS_PROPERTY("IgnoreOnSnapshot", "b", bus_property_get_bool, offsetof(Unit, ignore_on_snapshot), SD_BUS_VTABLE_PROPERTY_CONST), | |
670 | SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
671 | SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), SD_BUS_VTABLE_PROPERTY_CONST), | |
f189ab18 LP |
672 | SD_BUS_PROPERTY("JobTimeoutAction", "s", property_get_failure_action, offsetof(Unit, job_timeout_action), SD_BUS_VTABLE_PROPERTY_CONST), |
673 | SD_BUS_PROPERTY("JobTimeoutRebootArgument", "s", NULL, offsetof(Unit, job_timeout_reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 674 | SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
59fccdc5 | 675 | SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 | 676 | BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
59fccdc5 LP |
677 | BUS_PROPERTY_DUAL_TIMESTAMP("AssertTimestamp", offsetof(Unit, assert_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
678 | SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, offsetof(Unit, conditions), 0), | |
679 | SD_BUS_PROPERTY("Asserts", "a(sbbsi)", property_get_conditions, offsetof(Unit, asserts), 0), | |
556089dc LP |
680 | SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
681 | SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 682 | |
1d22e906 LP |
683 | SD_BUS_METHOD("Start", "s", "o", method_start, SD_BUS_VTABLE_UNPRIVILEGED), |
684 | SD_BUS_METHOD("Stop", "s", "o", method_stop, SD_BUS_VTABLE_UNPRIVILEGED), | |
685 | SD_BUS_METHOD("Reload", "s", "o", method_reload, SD_BUS_VTABLE_UNPRIVILEGED), | |
686 | SD_BUS_METHOD("Restart", "s", "o", method_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
687 | SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
688 | SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
689 | SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
690 | SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), | |
691 | SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED), | |
692 | SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, SD_BUS_VTABLE_UNPRIVILEGED), | |
718db961 LP |
693 | |
694 | SD_BUS_VTABLE_END | |
695 | }; | |
2cccbca4 | 696 | |
718db961 LP |
697 | static int property_get_slice( |
698 | sd_bus *bus, | |
699 | const char *path, | |
700 | const char *interface, | |
701 | const char *property, | |
702 | sd_bus_message *reply, | |
ebcf1f97 LP |
703 | void *userdata, |
704 | sd_bus_error *error) { | |
2cccbca4 | 705 | |
718db961 | 706 | Unit *u = userdata; |
2cccbca4 | 707 | |
718db961 LP |
708 | assert(bus); |
709 | assert(reply); | |
710 | assert(u); | |
2cccbca4 | 711 | |
718db961 LP |
712 | return sd_bus_message_append(reply, "s", unit_slice_name(u)); |
713 | } | |
2cccbca4 | 714 | |
934277fe LP |
715 | static int property_get_current_memory( |
716 | sd_bus *bus, | |
717 | const char *path, | |
718 | const char *interface, | |
719 | const char *property, | |
720 | sd_bus_message *reply, | |
721 | void *userdata, | |
722 | sd_bus_error *error) { | |
723 | ||
934277fe | 724 | uint64_t sz = (uint64_t) -1; |
5ad096b3 | 725 | Unit *u = userdata; |
934277fe LP |
726 | int r; |
727 | ||
728 | assert(bus); | |
729 | assert(reply); | |
730 | assert(u); | |
731 | ||
5ad096b3 LP |
732 | r = unit_get_memory_current(u, &sz); |
733 | if (r < 0 && r != -ENODATA) | |
f2341e0a | 734 | log_unit_warning_errno(u, r, "Failed to get memory.usage_in_bytes attribute: %m"); |
934277fe | 735 | |
5ad096b3 LP |
736 | return sd_bus_message_append(reply, "t", sz); |
737 | } | |
934277fe | 738 | |
5ad096b3 LP |
739 | static int property_get_cpu_usage( |
740 | sd_bus *bus, | |
741 | const char *path, | |
742 | const char *interface, | |
743 | const char *property, | |
744 | sd_bus_message *reply, | |
745 | void *userdata, | |
746 | sd_bus_error *error) { | |
934277fe | 747 | |
5ad096b3 LP |
748 | nsec_t ns = (nsec_t) -1; |
749 | Unit *u = userdata; | |
750 | int r; | |
751 | ||
752 | assert(bus); | |
753 | assert(reply); | |
754 | assert(u); | |
755 | ||
756 | r = unit_get_cpu_usage(u, &ns); | |
757 | if (r < 0 && r != -ENODATA) | |
f2341e0a | 758 | log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m"); |
5ad096b3 LP |
759 | |
760 | return sd_bus_message_append(reply, "t", ns); | |
934277fe LP |
761 | } |
762 | ||
98bac605 LP |
763 | static int property_get_cgroup( |
764 | sd_bus *bus, | |
765 | const char *path, | |
766 | const char *interface, | |
767 | const char *property, | |
768 | sd_bus_message *reply, | |
769 | void *userdata, | |
770 | sd_bus_error *error) { | |
771 | ||
772 | Unit *u = userdata; | |
773 | const char *t; | |
774 | ||
775 | assert(bus); | |
776 | assert(reply); | |
777 | assert(u); | |
778 | ||
779 | /* Three cases: a) u->cgroup_path is NULL, in which case the | |
780 | * unit has no control group, which we report as the empty | |
781 | * string. b) u->cgroup_path is the empty string, which | |
782 | * indicates the root cgroup, which we report as "/". c) all | |
783 | * other cases we report as-is. */ | |
784 | ||
785 | if (u->cgroup_path) | |
786 | t = isempty(u->cgroup_path) ? "/" : u->cgroup_path; | |
787 | else | |
788 | t = ""; | |
789 | ||
790 | return sd_bus_message_append(reply, "s", t); | |
791 | } | |
792 | ||
718db961 LP |
793 | const sd_bus_vtable bus_unit_cgroup_vtable[] = { |
794 | SD_BUS_VTABLE_START(0), | |
795 | SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0), | |
98bac605 | 796 | SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0), |
934277fe | 797 | SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0), |
5ad096b3 | 798 | SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0), |
718db961 LP |
799 | SD_BUS_VTABLE_END |
800 | }; | |
2cccbca4 | 801 | |
8f8f05a9 | 802 | static int send_new_signal(sd_bus *bus, void *userdata) { |
718db961 LP |
803 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
804 | _cleanup_free_ char *p = NULL; | |
805 | Unit *u = userdata; | |
806 | int r; | |
2cccbca4 | 807 | |
718db961 LP |
808 | assert(bus); |
809 | assert(u); | |
2cccbca4 | 810 | |
718db961 | 811 | p = unit_dbus_path(u); |
e861098b | 812 | if (!p) |
718db961 | 813 | return -ENOMEM; |
2cccbca4 | 814 | |
718db961 LP |
815 | r = sd_bus_message_new_signal( |
816 | bus, | |
151b9b96 | 817 | &m, |
718db961 LP |
818 | "/org/freedesktop/systemd1", |
819 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 820 | "UnitNew"); |
718db961 LP |
821 | if (r < 0) |
822 | return r; | |
2cccbca4 | 823 | |
718db961 LP |
824 | r = sd_bus_message_append(m, "so", u->id, p); |
825 | if (r < 0) | |
826 | return r; | |
2cccbca4 | 827 | |
8f8f05a9 | 828 | return sd_bus_send(bus, m, NULL); |
718db961 | 829 | } |
2cccbca4 | 830 | |
8f8f05a9 | 831 | static int send_changed_signal(sd_bus *bus, void *userdata) { |
718db961 LP |
832 | _cleanup_free_ char *p = NULL; |
833 | Unit *u = userdata; | |
834 | int r; | |
2cccbca4 | 835 | |
718db961 LP |
836 | assert(bus); |
837 | assert(u); | |
2cccbca4 | 838 | |
718db961 | 839 | p = unit_dbus_path(u); |
9ceefc81 | 840 | if (!p) |
718db961 | 841 | return -ENOMEM; |
2cccbca4 | 842 | |
718db961 LP |
843 | /* Send a properties changed signal. First for the specific |
844 | * type, then for the generic unit. The clients may rely on | |
845 | * this order to get atomic behavior if needed. */ | |
ea430986 | 846 | |
aec8de63 LP |
847 | r = sd_bus_emit_properties_changed_strv( |
848 | bus, p, | |
21b735e7 | 849 | unit_dbus_interface_from_type(u->type), |
aec8de63 | 850 | NULL); |
fe7f06f1 | 851 | if (r < 0) |
aec8de63 | 852 | return r; |
80fbf05e | 853 | |
fe7f06f1 | 854 | return sd_bus_emit_properties_changed_strv( |
718db961 LP |
855 | bus, p, |
856 | "org.freedesktop.systemd1.Unit", | |
718db961 | 857 | NULL); |
ea430986 LP |
858 | } |
859 | ||
c1e1601e | 860 | void bus_unit_send_change_signal(Unit *u) { |
b170dd80 | 861 | int r; |
c1e1601e | 862 | assert(u); |
c1e1601e | 863 | |
ac155bb8 | 864 | if (u->in_dbus_queue) { |
71fda00f | 865 | LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
ac155bb8 | 866 | u->in_dbus_queue = false; |
c0bd0cf7 | 867 | } |
c1e1601e | 868 | |
ac155bb8 | 869 | if (!u->id) |
04ade7d2 LP |
870 | return; |
871 | ||
8f8f05a9 | 872 | r = bus_foreach_bus(u->manager, NULL, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u); |
718db961 | 873 | if (r < 0) |
f2341e0a | 874 | log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id); |
c1e1601e | 875 | |
718db961 LP |
876 | u->sent_dbus_new_signal = true; |
877 | } | |
c4e2ceae | 878 | |
8f8f05a9 | 879 | static int send_removed_signal(sd_bus *bus, void *userdata) { |
718db961 LP |
880 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
881 | _cleanup_free_ char *p = NULL; | |
882 | Unit *u = userdata; | |
883 | int r; | |
c4e2ceae | 884 | |
718db961 LP |
885 | assert(bus); |
886 | assert(u); | |
c1e1601e | 887 | |
718db961 | 888 | p = unit_dbus_path(u); |
e861098b | 889 | if (!p) |
718db961 | 890 | return -ENOMEM; |
c1e1601e | 891 | |
718db961 LP |
892 | r = sd_bus_message_new_signal( |
893 | bus, | |
151b9b96 | 894 | &m, |
718db961 LP |
895 | "/org/freedesktop/systemd1", |
896 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 897 | "UnitRemoved"); |
718db961 LP |
898 | if (r < 0) |
899 | return r; | |
c1e1601e | 900 | |
718db961 LP |
901 | r = sd_bus_message_append(m, "so", u->id, p); |
902 | if (r < 0) | |
903 | return r; | |
c1e1601e | 904 | |
8f8f05a9 | 905 | return sd_bus_send(bus, m, NULL); |
c1e1601e LP |
906 | } |
907 | ||
908 | void bus_unit_send_removed_signal(Unit *u) { | |
718db961 | 909 | int r; |
c1e1601e LP |
910 | assert(u); |
911 | ||
ac155bb8 | 912 | if (!u->sent_dbus_new_signal) |
7535cc78 LP |
913 | bus_unit_send_change_signal(u); |
914 | ||
ac155bb8 | 915 | if (!u->id) |
04ade7d2 LP |
916 | return; |
917 | ||
8f8f05a9 | 918 | r = bus_foreach_bus(u->manager, NULL, send_removed_signal, u); |
718db961 | 919 | if (r < 0) |
f2341e0a | 920 | log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id); |
c1e1601e | 921 | } |
e2110e5d | 922 | |
718db961 | 923 | int bus_unit_queue_job( |
718db961 | 924 | sd_bus_message *message, |
cad45ba1 LP |
925 | Unit *u, |
926 | JobType type, | |
927 | JobMode mode, | |
ebcf1f97 LP |
928 | bool reload_if_possible, |
929 | sd_bus_error *error) { | |
cad45ba1 | 930 | |
cad45ba1 LP |
931 | _cleanup_free_ char *path = NULL; |
932 | Job *j; | |
cad45ba1 LP |
933 | int r; |
934 | ||
cad45ba1 LP |
935 | assert(message); |
936 | assert(u); | |
937 | assert(type >= 0 && type < _JOB_TYPE_MAX); | |
938 | assert(mode >= 0 && mode < _JOB_MODE_MAX); | |
939 | ||
cad45ba1 LP |
940 | if (reload_if_possible && unit_can_reload(u)) { |
941 | if (type == JOB_RESTART) | |
942 | type = JOB_RELOAD_OR_START; | |
943 | else if (type == JOB_TRY_RESTART) | |
944 | type = JOB_RELOAD; | |
945 | } | |
946 | ||
8a188de9 | 947 | r = mac_selinux_unit_access_check( |
4f4f7036 | 948 | u, message, |
ebcf1f97 LP |
949 | (type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" : |
950 | type == JOB_STOP ? "stop" : "reload", error); | |
951 | if (r < 0) | |
952 | return r; | |
cad45ba1 | 953 | |
718db961 LP |
954 | if (type == JOB_STOP && |
955 | (u->load_state == UNIT_NOT_FOUND || u->load_state == UNIT_ERROR) && | |
956 | unit_active_state(u) == UNIT_INACTIVE) | |
ebcf1f97 | 957 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id); |
cad45ba1 LP |
958 | |
959 | if ((type == JOB_START && u->refuse_manual_start) || | |
960 | (type == JOB_STOP && u->refuse_manual_stop) || | |
718db961 | 961 | ((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop))) |
ebcf1f97 | 962 | return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id); |
cad45ba1 | 963 | |
ebcf1f97 | 964 | r = manager_add_job(u->manager, type, u, mode, true, error, &j); |
cad45ba1 | 965 | if (r < 0) |
ebcf1f97 | 966 | return r; |
cad45ba1 | 967 | |
19070062 | 968 | if (sd_bus_message_get_bus(message) == u->manager->api_bus) { |
b39a2770 | 969 | if (!j->clients) { |
19070062 | 970 | r = sd_bus_track_new(sd_bus_message_get_bus(message), &j->clients, NULL, NULL); |
8f8f05a9 LP |
971 | if (r < 0) |
972 | return r; | |
973 | } | |
974 | ||
b39a2770 | 975 | r = sd_bus_track_add_sender(j->clients, message); |
8f8f05a9 LP |
976 | if (r < 0) |
977 | return r; | |
978 | } | |
cad45ba1 LP |
979 | |
980 | path = job_dbus_path(j); | |
981 | if (!path) | |
6ce270b1 | 982 | return -ENOMEM; |
cad45ba1 | 983 | |
df2d202e | 984 | return sd_bus_reply_method_return(message, "o", path); |
cad45ba1 LP |
985 | } |
986 | ||
9f2e86af LP |
987 | static int bus_unit_set_transient_property( |
988 | Unit *u, | |
989 | const char *name, | |
718db961 | 990 | sd_bus_message *message, |
9f2e86af | 991 | UnitSetPropertiesMode mode, |
718db961 | 992 | sd_bus_error *error) { |
9f2e86af LP |
993 | |
994 | int r; | |
995 | ||
996 | assert(u); | |
997 | assert(name); | |
718db961 | 998 | assert(message); |
9f2e86af LP |
999 | |
1000 | if (streq(name, "Description")) { | |
718db961 | 1001 | const char *d; |
9f2e86af | 1002 | |
718db961 LP |
1003 | r = sd_bus_message_read(message, "s", &d); |
1004 | if (r < 0) | |
1005 | return r; | |
8aec412f | 1006 | |
718db961 LP |
1007 | if (mode != UNIT_CHECK) { |
1008 | r = unit_set_description(u, d); | |
8aec412f LP |
1009 | if (r < 0) |
1010 | return r; | |
b9316fb0 | 1011 | |
718db961 | 1012 | unit_write_drop_in_format(u, mode, name, "[Unit]\nDescription=%s\n", d); |
8aec412f | 1013 | } |
9f2e86af LP |
1014 | |
1015 | return 1; | |
261420ba LP |
1016 | |
1017 | } else if (streq(name, "DefaultDependencies")) { | |
1018 | int b; | |
1019 | ||
1020 | r = sd_bus_message_read(message, "b", &b); | |
1021 | if (r < 0) | |
1022 | return r; | |
1023 | ||
1024 | if (mode != UNIT_CHECK) { | |
1025 | u->default_dependencies = b; | |
1026 | unit_write_drop_in_format(u, mode, name, "[Unit]\nDefaultDependencies=%s\n", yes_no(b)); | |
1027 | } | |
1028 | ||
1029 | return 1; | |
c221420b | 1030 | |
d79200e2 LP |
1031 | } else if (streq(name, "Slice")) { |
1032 | Unit *slice; | |
c221420b | 1033 | const char *s; |
c221420b | 1034 | |
d79200e2 LP |
1035 | if (!UNIT_HAS_CGROUP_CONTEXT(u)) |
1036 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups."); | |
1037 | if (u->type == UNIT_SLICE) | |
1038 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units."); | |
efdb0237 LP |
1039 | if (unit_has_name(u, SPECIAL_INIT_SCOPE)) |
1040 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope"); | |
d79200e2 | 1041 | |
718db961 LP |
1042 | r = sd_bus_message_read(message, "s", &s); |
1043 | if (r < 0) | |
1044 | return r; | |
c221420b | 1045 | |
d79200e2 LP |
1046 | if (!unit_name_is_valid(s, UNIT_NAME_PLAIN)) |
1047 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s); | |
1048 | ||
1049 | r = manager_load_unit(u->manager, s, NULL, error, &slice); | |
1050 | if (r < 0) | |
1051 | return r; | |
c221420b | 1052 | |
d79200e2 LP |
1053 | if (slice->type != UNIT_SLICE) |
1054 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s); | |
b9316fb0 | 1055 | |
d79200e2 LP |
1056 | if (mode != UNIT_CHECK) { |
1057 | r = unit_set_slice(u, slice); | |
8aec412f LP |
1058 | if (r < 0) |
1059 | return r; | |
c221420b | 1060 | |
d79200e2 | 1061 | unit_write_drop_in_private_format(u, mode, name, "Slice=%s\n", s); |
8aec412f | 1062 | } |
b9ec9359 | 1063 | |
c221420b | 1064 | return 1; |
d79200e2 | 1065 | |
311f6cf3 WC |
1066 | } else if (STR_IN_SET(name, |
1067 | "Requires", "RequiresOverridable", | |
1068 | "Requisite", "RequisiteOverridable", | |
1069 | "Wants", | |
1070 | "BindsTo", | |
1071 | "Conflicts", | |
1072 | "Before", "After", | |
1073 | "OnFailure", | |
1074 | "PropagatesReloadTo", "ReloadPropagatedFrom", | |
1075 | "PartOf")) { | |
7fb3ee51 LP |
1076 | |
1077 | UnitDependency d; | |
718db961 | 1078 | const char *other; |
7fb3ee51 LP |
1079 | |
1080 | d = unit_dependency_from_string(name); | |
1081 | if (d < 0) | |
1082 | return -EINVAL; | |
1083 | ||
718db961 LP |
1084 | r = sd_bus_message_enter_container(message, 'a', "s"); |
1085 | if (r < 0) | |
1086 | return r; | |
7fb3ee51 | 1087 | |
718db961 | 1088 | while ((r = sd_bus_message_read(message, "s", &other)) > 0) { |
7410616c | 1089 | if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
718db961 | 1090 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other); |
7fb3ee51 LP |
1091 | |
1092 | if (mode != UNIT_CHECK) { | |
b9ec9359 | 1093 | _cleanup_free_ char *label = NULL; |
7fb3ee51 LP |
1094 | |
1095 | r = unit_add_dependency_by_name(u, d, other, NULL, true); | |
1096 | if (r < 0) | |
1097 | return r; | |
1098 | ||
1099 | label = strjoin(name, "-", other, NULL); | |
1100 | if (!label) | |
1101 | return -ENOMEM; | |
1102 | ||
b9ec9359 | 1103 | unit_write_drop_in_format(u, mode, label, "[Unit]\n%s=%s\n", name, other); |
7fb3ee51 LP |
1104 | } |
1105 | ||
7fb3ee51 | 1106 | } |
718db961 LP |
1107 | if (r < 0) |
1108 | return r; | |
7fb3ee51 | 1109 | |
6ce270b1 LP |
1110 | r = sd_bus_message_exit_container(message); |
1111 | if (r < 0) | |
1112 | return r; | |
1113 | ||
7fb3ee51 | 1114 | return 1; |
9f2e86af LP |
1115 | } |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
c2756a68 LP |
1120 | int bus_unit_set_properties( |
1121 | Unit *u, | |
718db961 | 1122 | sd_bus_message *message, |
c2756a68 LP |
1123 | UnitSetPropertiesMode mode, |
1124 | bool commit, | |
718db961 | 1125 | sd_bus_error *error) { |
c2756a68 | 1126 | |
8e2af478 | 1127 | bool for_real = false; |
8e2af478 LP |
1128 | unsigned n = 0; |
1129 | int r; | |
1130 | ||
1131 | assert(u); | |
718db961 | 1132 | assert(message); |
8e2af478 LP |
1133 | |
1134 | /* We iterate through the array twice. First run we just check | |
1135 | * if all passed data is valid, second run actually applies | |
1136 | * it. This is to implement transaction-like behaviour without | |
1137 | * actually providing full transactions. */ | |
1138 | ||
718db961 LP |
1139 | r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
1140 | if (r < 0) | |
1141 | return r; | |
8e2af478 | 1142 | |
8e2af478 | 1143 | for (;;) { |
8e2af478 LP |
1144 | const char *name; |
1145 | ||
718db961 LP |
1146 | r = sd_bus_message_enter_container(message, 'r', "sv"); |
1147 | if (r < 0) | |
1148 | return r; | |
1149 | if (r == 0) { | |
a255a7f1 | 1150 | if (for_real || mode == UNIT_CHECK) |
8e2af478 LP |
1151 | break; |
1152 | ||
1153 | /* Reached EOF. Let's try again, and this time for realz... */ | |
718db961 LP |
1154 | r = sd_bus_message_rewind(message, false); |
1155 | if (r < 0) | |
1156 | return r; | |
6ce270b1 | 1157 | |
8e2af478 LP |
1158 | for_real = true; |
1159 | continue; | |
1160 | } | |
1161 | ||
718db961 LP |
1162 | r = sd_bus_message_read(message, "s", &name); |
1163 | if (r < 0) | |
1164 | return r; | |
8e2af478 | 1165 | |
718db961 LP |
1166 | if (!UNIT_VTABLE(u)->bus_set_property) |
1167 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties."); | |
8e2af478 | 1168 | |
718db961 LP |
1169 | r = sd_bus_message_enter_container(message, 'v', NULL); |
1170 | if (r < 0) | |
1171 | return r; | |
8e2af478 | 1172 | |
718db961 | 1173 | r = UNIT_VTABLE(u)->bus_set_property(u, name, message, for_real ? mode : UNIT_CHECK, error); |
9f2e86af | 1174 | if (r == 0 && u->transient && u->load_state == UNIT_STUB) |
718db961 LP |
1175 | r = bus_unit_set_transient_property(u, name, message, for_real ? mode : UNIT_CHECK, error); |
1176 | if (r < 0) | |
1177 | return r; | |
1178 | if (r == 0) | |
1179 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name); | |
1180 | ||
1181 | r = sd_bus_message_exit_container(message); | |
8e2af478 LP |
1182 | if (r < 0) |
1183 | return r; | |
8e2af478 | 1184 | |
718db961 LP |
1185 | r = sd_bus_message_exit_container(message); |
1186 | if (r < 0) | |
1187 | return r; | |
8e2af478 LP |
1188 | |
1189 | n += for_real; | |
1190 | } | |
1191 | ||
6ce270b1 LP |
1192 | r = sd_bus_message_exit_container(message); |
1193 | if (r < 0) | |
1194 | return r; | |
1195 | ||
c2756a68 | 1196 | if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties) |
8e2af478 LP |
1197 | UNIT_VTABLE(u)->bus_commit_properties(u); |
1198 | ||
241da328 | 1199 | return n; |
8e2af478 | 1200 | } |