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663996b3 MS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
60f067b4 | 22 | #include "sd-bus.h" |
663996b3 | 23 | #include "log.h" |
663996b3 MS |
24 | #include "selinux-access.h" |
25 | #include "cgroup-util.h" | |
26 | #include "strv.h" | |
f47781d8 | 27 | #include "bus-common-errors.h" |
d9dfd233 | 28 | #include "special.h" |
60f067b4 | 29 | #include "dbus.h" |
60f067b4 | 30 | #include "dbus-unit.h" |
663996b3 | 31 | |
60f067b4 JS |
32 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState); |
33 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode); | |
5eef597e | 34 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_failure_action, failure_action, FailureAction); |
60f067b4 JS |
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, | |
42 | void *userdata, | |
43 | sd_bus_error *error) { | |
44 | ||
45 | Unit *u = userdata; | |
46 | Iterator i; | |
47 | const char *t; | |
48 | int r; | |
663996b3 | 49 | |
60f067b4 JS |
50 | assert(bus); |
51 | assert(reply); | |
52 | assert(u); | |
663996b3 | 53 | |
60f067b4 JS |
54 | r = sd_bus_message_open_container(reply, 'a', "s"); |
55 | if (r < 0) | |
56 | return r; | |
663996b3 | 57 | |
60f067b4 JS |
58 | SET_FOREACH(t, u->names, i) { |
59 | r = sd_bus_message_append(reply, "s", t); | |
60 | if (r < 0) | |
61 | return r; | |
62 | } | |
663996b3 | 63 | |
60f067b4 | 64 | return sd_bus_message_close_container(reply); |
663996b3 MS |
65 | } |
66 | ||
60f067b4 JS |
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, | |
73 | void *userdata, | |
74 | sd_bus_error *error) { | |
75 | ||
76 | Unit *u = userdata, *f; | |
663996b3 | 77 | |
60f067b4 JS |
78 | assert(bus); |
79 | assert(reply); | |
663996b3 MS |
80 | assert(u); |
81 | ||
82 | f = unit_following(u); | |
60f067b4 | 83 | return sd_bus_message_append(reply, "s", f ? f->id : ""); |
663996b3 MS |
84 | } |
85 | ||
60f067b4 JS |
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, | |
92 | void *userdata, | |
93 | sd_bus_error *error) { | |
14228c0d | 94 | |
60f067b4 | 95 | Set *s = *(Set**) userdata; |
663996b3 | 96 | Iterator j; |
60f067b4 JS |
97 | Unit *u; |
98 | int r; | |
663996b3 | 99 | |
60f067b4 JS |
100 | assert(bus); |
101 | assert(reply); | |
663996b3 | 102 | |
60f067b4 JS |
103 | r = sd_bus_message_open_container(reply, 'a', "s"); |
104 | if (r < 0) | |
105 | return r; | |
663996b3 | 106 | |
60f067b4 JS |
107 | SET_FOREACH(u, s, j) { |
108 | r = sd_bus_message_append(reply, "s", u->id); | |
109 | if (r < 0) | |
110 | return r; | |
111 | } | |
663996b3 | 112 | |
60f067b4 | 113 | return sd_bus_message_close_container(reply); |
663996b3 MS |
114 | } |
115 | ||
60f067b4 JS |
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, | |
122 | void *userdata, | |
123 | sd_bus_error *error) { | |
663996b3 | 124 | |
60f067b4 | 125 | Unit *u = userdata; |
663996b3 | 126 | |
60f067b4 JS |
127 | assert(bus); |
128 | assert(reply); | |
129 | assert(u); | |
663996b3 | 130 | |
60f067b4 | 131 | return sd_bus_message_append(reply, "s", unit_description(u)); |
663996b3 MS |
132 | } |
133 | ||
60f067b4 JS |
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, | |
140 | void *userdata, | |
141 | sd_bus_error *error) { | |
663996b3 | 142 | |
60f067b4 | 143 | Unit *u = userdata; |
663996b3 | 144 | |
60f067b4 JS |
145 | assert(bus); |
146 | assert(reply); | |
663996b3 MS |
147 | assert(u); |
148 | ||
60f067b4 | 149 | return sd_bus_message_append(reply, "s", unit_active_state_to_string(unit_active_state(u))); |
663996b3 MS |
150 | } |
151 | ||
60f067b4 JS |
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, | |
158 | void *userdata, | |
159 | sd_bus_error *error) { | |
663996b3 | 160 | |
60f067b4 | 161 | Unit *u = userdata; |
663996b3 | 162 | |
60f067b4 JS |
163 | assert(bus); |
164 | assert(reply); | |
165 | assert(u); | |
663996b3 | 166 | |
60f067b4 | 167 | return sd_bus_message_append(reply, "s", unit_sub_state_to_string(u)); |
663996b3 MS |
168 | } |
169 | ||
f47781d8 MP |
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 | ||
60f067b4 JS |
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, | |
199 | void *userdata, | |
200 | sd_bus_error *error) { | |
663996b3 | 201 | |
60f067b4 | 202 | Unit *u = userdata; |
663996b3 | 203 | |
60f067b4 JS |
204 | assert(bus); |
205 | assert(reply); | |
206 | assert(u); | |
663996b3 | 207 | |
60f067b4 | 208 | return sd_bus_message_append(reply, "s", unit_file_state_to_string(unit_get_unit_file_state(u))); |
663996b3 MS |
209 | } |
210 | ||
60f067b4 JS |
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, | |
217 | void *userdata, | |
218 | sd_bus_error *error) { | |
663996b3 | 219 | |
60f067b4 | 220 | Unit *u = userdata; |
663996b3 | 221 | |
60f067b4 JS |
222 | assert(bus); |
223 | assert(reply); | |
224 | assert(u); | |
663996b3 | 225 | |
60f067b4 | 226 | return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_start); |
663996b3 MS |
227 | } |
228 | ||
60f067b4 JS |
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, | |
235 | void *userdata, | |
236 | sd_bus_error *error) { | |
237 | ||
238 | Unit *u = userdata; | |
663996b3 | 239 | |
60f067b4 JS |
240 | assert(bus); |
241 | assert(reply); | |
663996b3 MS |
242 | assert(u); |
243 | ||
244 | /* On the lower levels we assume that every unit we can start | |
245 | * we can also stop */ | |
246 | ||
60f067b4 | 247 | return sd_bus_message_append(reply, "b", unit_can_start(u) && !u->refuse_manual_stop); |
663996b3 MS |
248 | } |
249 | ||
60f067b4 JS |
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, | |
256 | void *userdata, | |
257 | sd_bus_error *error) { | |
663996b3 | 258 | |
60f067b4 | 259 | Unit *u = userdata; |
663996b3 | 260 | |
60f067b4 JS |
261 | assert(bus); |
262 | assert(reply); | |
263 | assert(u); | |
663996b3 | 264 | |
60f067b4 | 265 | return sd_bus_message_append(reply, "b", unit_can_reload(u)); |
663996b3 MS |
266 | } |
267 | ||
60f067b4 JS |
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, | |
274 | void *userdata, | |
275 | sd_bus_error *error) { | |
663996b3 | 276 | |
60f067b4 | 277 | Unit *u = userdata; |
663996b3 | 278 | |
60f067b4 JS |
279 | assert(bus); |
280 | assert(reply); | |
281 | assert(u); | |
663996b3 | 282 | |
60f067b4 | 283 | return sd_bus_message_append(reply, "b", unit_can_isolate(u) && !u->refuse_manual_start); |
663996b3 MS |
284 | } |
285 | ||
60f067b4 JS |
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, | |
292 | void *userdata, | |
293 | sd_bus_error *error) { | |
294 | ||
663996b3 | 295 | _cleanup_free_ char *p = NULL; |
60f067b4 | 296 | Unit *u = userdata; |
663996b3 | 297 | |
60f067b4 JS |
298 | assert(bus); |
299 | assert(reply); | |
663996b3 MS |
300 | assert(u); |
301 | ||
60f067b4 JS |
302 | if (!u->job) |
303 | return sd_bus_message_append(reply, "(uo)", 0, "/"); | |
663996b3 | 304 | |
60f067b4 JS |
305 | p = job_dbus_path(u->job); |
306 | if (!p) | |
663996b3 MS |
307 | return -ENOMEM; |
308 | ||
60f067b4 | 309 | return sd_bus_message_append(reply, "(uo)", u->job->id, p); |
663996b3 MS |
310 | } |
311 | ||
60f067b4 JS |
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, | |
318 | void *userdata, | |
319 | sd_bus_error *error) { | |
663996b3 | 320 | |
60f067b4 | 321 | Unit *u = userdata; |
663996b3 | 322 | |
60f067b4 JS |
323 | assert(bus); |
324 | assert(reply); | |
325 | assert(u); | |
663996b3 | 326 | |
60f067b4 | 327 | return sd_bus_message_append(reply, "b", unit_need_daemon_reload(u)); |
663996b3 MS |
328 | } |
329 | ||
60f067b4 JS |
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, | |
336 | void *userdata, | |
337 | sd_bus_error *error) { | |
663996b3 | 338 | |
f47781d8 MP |
339 | const char *(*to_string)(ConditionType type) = NULL; |
340 | Condition **list = userdata, *c; | |
60f067b4 | 341 | int r; |
663996b3 | 342 | |
60f067b4 JS |
343 | assert(bus); |
344 | assert(reply); | |
f47781d8 MP |
345 | assert(list); |
346 | ||
347 | to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string; | |
663996b3 | 348 | |
60f067b4 JS |
349 | r = sd_bus_message_open_container(reply, 'a', "(sbbsi)"); |
350 | if (r < 0) | |
351 | return r; | |
663996b3 | 352 | |
f47781d8 MP |
353 | LIST_FOREACH(conditions, c, *list) { |
354 | int tristate; | |
355 | ||
356 | tristate = | |
357 | c->result == CONDITION_UNTESTED ? 0 : | |
358 | c->result == CONDITION_SUCCEEDED ? 1 : -1; | |
359 | ||
60f067b4 | 360 | r = sd_bus_message_append(reply, "(sbbsi)", |
f47781d8 | 361 | to_string(c->type), |
60f067b4 | 362 | c->trigger, c->negate, |
f47781d8 | 363 | c->parameter, tristate); |
60f067b4 JS |
364 | if (r < 0) |
365 | return r; | |
14228c0d | 366 | |
60f067b4 | 367 | } |
663996b3 | 368 | |
60f067b4 | 369 | return sd_bus_message_close_container(reply); |
663996b3 MS |
370 | } |
371 | ||
60f067b4 JS |
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, | |
378 | void *userdata, | |
379 | sd_bus_error *error) { | |
663996b3 | 380 | |
60f067b4 JS |
381 | _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL; |
382 | Unit *u = userdata; | |
663996b3 | 383 | |
60f067b4 JS |
384 | assert(bus); |
385 | assert(reply); | |
386 | assert(u); | |
663996b3 | 387 | |
60f067b4 JS |
388 | if (u->load_error != 0) |
389 | sd_bus_error_set_errno(&e, u->load_error); | |
663996b3 | 390 | |
60f067b4 | 391 | return sd_bus_message_append(reply, "(ss)", e.name, e.message); |
663996b3 MS |
392 | } |
393 | ||
d9dfd233 MP |
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 | ||
e3bff60a MP |
417 | int bus_unit_method_start_generic( |
418 | sd_bus_message *message, | |
419 | Unit *u, | |
420 | JobType job_type, | |
421 | bool reload_if_possible, | |
422 | sd_bus_error *error) { | |
423 | ||
60f067b4 JS |
424 | const char *smode; |
425 | JobMode mode; | |
d9dfd233 MP |
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 | }; | |
663996b3 MS |
434 | int r; |
435 | ||
60f067b4 JS |
436 | assert(message); |
437 | assert(u); | |
438 | assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); | |
663996b3 | 439 | |
e3bff60a MP |
440 | r = mac_selinux_unit_access_check(u, message, job_type == JOB_STOP ? "stop" : "start", error); |
441 | if (r < 0) | |
442 | return r; | |
443 | ||
60f067b4 JS |
444 | r = sd_bus_message_read(message, "s", &smode); |
445 | if (r < 0) | |
446 | return r; | |
663996b3 | 447 | |
60f067b4 JS |
448 | mode = job_mode_from_string(smode); |
449 | if (mode < 0) | |
450 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); | |
663996b3 | 451 | |
d9dfd233 MP |
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); | |
e3bff60a MP |
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 | ||
471 | return bus_unit_queue_job(message, u, job_type, mode, reload_if_possible, error); | |
60f067b4 | 472 | } |
663996b3 | 473 | |
e3bff60a MP |
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); | |
60f067b4 | 476 | } |
663996b3 | 477 | |
e3bff60a MP |
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); | |
60f067b4 | 480 | } |
663996b3 | 481 | |
e3bff60a MP |
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); | |
60f067b4 | 484 | } |
663996b3 | 485 | |
e3bff60a MP |
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); | |
60f067b4 | 488 | } |
663996b3 | 489 | |
e3bff60a MP |
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); | |
60f067b4 | 492 | } |
663996b3 | 493 | |
e3bff60a MP |
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); | |
60f067b4 | 496 | } |
663996b3 | 497 | |
e3bff60a MP |
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); | |
60f067b4 | 500 | } |
663996b3 | 501 | |
e3bff60a | 502 | int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60f067b4 JS |
503 | Unit *u = userdata; |
504 | const char *swho; | |
505 | int32_t signo; | |
506 | KillWho who; | |
507 | int r; | |
663996b3 | 508 | |
60f067b4 JS |
509 | assert(message); |
510 | assert(u); | |
663996b3 | 511 | |
e3bff60a | 512 | r = mac_selinux_unit_access_check(u, message, "stop", error); |
5eef597e MP |
513 | if (r < 0) |
514 | return r; | |
5eef597e | 515 | |
60f067b4 JS |
516 | r = sd_bus_message_read(message, "si", &swho, &signo); |
517 | if (r < 0) | |
518 | return r; | |
519 | ||
520 | if (isempty(swho)) | |
521 | who = KILL_ALL; | |
522 | else { | |
523 | who = kill_who_from_string(swho); | |
524 | if (who < 0) | |
525 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho); | |
663996b3 MS |
526 | } |
527 | ||
60f067b4 JS |
528 | if (signo <= 0 || signo >= _NSIG) |
529 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range."); | |
530 | ||
d9dfd233 MP |
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); | |
60f067b4 JS |
538 | if (r < 0) |
539 | return r; | |
e3bff60a MP |
540 | if (r == 0) |
541 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
663996b3 | 542 | |
60f067b4 JS |
543 | r = unit_kill(u, who, signo, error); |
544 | if (r < 0) | |
545 | return r; | |
663996b3 | 546 | |
60f067b4 | 547 | return sd_bus_reply_method_return(message, NULL); |
663996b3 MS |
548 | } |
549 | ||
e3bff60a | 550 | int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60f067b4 | 551 | Unit *u = userdata; |
663996b3 | 552 | int r; |
663996b3 | 553 | |
663996b3 | 554 | assert(message); |
60f067b4 | 555 | assert(u); |
663996b3 | 556 | |
e3bff60a | 557 | r = mac_selinux_unit_access_check(u, message, "reload", error); |
5eef597e MP |
558 | if (r < 0) |
559 | return r; | |
5eef597e | 560 | |
d9dfd233 MP |
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 '$(unit)'."), | |
566 | message, | |
567 | error); | |
60f067b4 JS |
568 | if (r < 0) |
569 | return r; | |
e3bff60a MP |
570 | if (r == 0) |
571 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
663996b3 | 572 | |
60f067b4 | 573 | unit_reset_failed(u); |
663996b3 | 574 | |
60f067b4 JS |
575 | return sd_bus_reply_method_return(message, NULL); |
576 | } | |
663996b3 | 577 | |
e3bff60a | 578 | int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60f067b4 JS |
579 | Unit *u = userdata; |
580 | int runtime, r; | |
663996b3 | 581 | |
60f067b4 JS |
582 | assert(message); |
583 | assert(u); | |
663996b3 | 584 | |
e3bff60a | 585 | r = mac_selinux_unit_access_check(u, message, "start", error); |
5eef597e MP |
586 | if (r < 0) |
587 | return r; | |
5eef597e | 588 | |
60f067b4 JS |
589 | r = sd_bus_message_read(message, "b", &runtime); |
590 | if (r < 0) | |
591 | return r; | |
663996b3 | 592 | |
d9dfd233 MP |
593 | r = bus_verify_manage_units_async_full( |
594 | u, | |
595 | "set-property", | |
596 | CAP_SYS_ADMIN, | |
597 | N_("Authentication is required to set properties on '$(unit)'."), | |
598 | message, | |
599 | error); | |
60f067b4 JS |
600 | if (r < 0) |
601 | return r; | |
e3bff60a MP |
602 | if (r == 0) |
603 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
663996b3 | 604 | |
60f067b4 JS |
605 | r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error); |
606 | if (r < 0) | |
607 | return r; | |
663996b3 | 608 | |
60f067b4 JS |
609 | return sd_bus_reply_method_return(message, NULL); |
610 | } | |
663996b3 | 611 | |
60f067b4 JS |
612 | const sd_bus_vtable bus_unit_vtable[] = { |
613 | SD_BUS_VTABLE_START(0), | |
614 | ||
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), | |
617 | SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0), | |
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), | |
e3bff60a MP |
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), | |
60f067b4 JS |
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), | |
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), | |
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), | |
651 | SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0), | |
f47781d8 | 652 | SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0), |
60f067b4 JS |
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), | |
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), | |
661 | SD_BUS_PROPERTY("Job", "(uo)", property_get_job, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
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), | |
5eef597e MP |
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), | |
60f067b4 | 674 | SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
f47781d8 | 675 | SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
60f067b4 | 676 | BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
f47781d8 MP |
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), | |
60f067b4 JS |
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), | |
6300502b | 682 | SD_BUS_PROPERTY("NetClass", "u", bus_property_get_unsigned, offsetof(Unit, cgroup_netclass_id), 0), |
60f067b4 | 683 | |
e3bff60a MP |
684 | SD_BUS_METHOD("Start", "s", "o", method_start, SD_BUS_VTABLE_UNPRIVILEGED), |
685 | SD_BUS_METHOD("Stop", "s", "o", method_stop, SD_BUS_VTABLE_UNPRIVILEGED), | |
686 | SD_BUS_METHOD("Reload", "s", "o", method_reload, SD_BUS_VTABLE_UNPRIVILEGED), | |
687 | SD_BUS_METHOD("Restart", "s", "o", method_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
688 | SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
689 | SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
690 | SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
691 | SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), | |
692 | SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED), | |
693 | SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, SD_BUS_VTABLE_UNPRIVILEGED), | |
60f067b4 JS |
694 | |
695 | SD_BUS_VTABLE_END | |
696 | }; | |
663996b3 | 697 | |
60f067b4 JS |
698 | static int property_get_slice( |
699 | sd_bus *bus, | |
700 | const char *path, | |
701 | const char *interface, | |
702 | const char *property, | |
703 | sd_bus_message *reply, | |
704 | void *userdata, | |
705 | sd_bus_error *error) { | |
663996b3 | 706 | |
60f067b4 | 707 | Unit *u = userdata; |
663996b3 | 708 | |
60f067b4 JS |
709 | assert(bus); |
710 | assert(reply); | |
711 | assert(u); | |
663996b3 | 712 | |
60f067b4 JS |
713 | return sd_bus_message_append(reply, "s", unit_slice_name(u)); |
714 | } | |
663996b3 | 715 | |
e735f4d4 MP |
716 | static int property_get_current_memory( |
717 | sd_bus *bus, | |
718 | const char *path, | |
719 | const char *interface, | |
720 | const char *property, | |
721 | sd_bus_message *reply, | |
722 | void *userdata, | |
723 | sd_bus_error *error) { | |
724 | ||
e735f4d4 | 725 | uint64_t sz = (uint64_t) -1; |
e3bff60a | 726 | Unit *u = userdata; |
e735f4d4 MP |
727 | int r; |
728 | ||
729 | assert(bus); | |
730 | assert(reply); | |
731 | assert(u); | |
732 | ||
e3bff60a MP |
733 | r = unit_get_memory_current(u, &sz); |
734 | if (r < 0 && r != -ENODATA) | |
735 | log_unit_warning_errno(u, r, "Failed to get memory.usage_in_bytes attribute: %m"); | |
e735f4d4 | 736 | |
e3bff60a MP |
737 | return sd_bus_message_append(reply, "t", sz); |
738 | } | |
e735f4d4 | 739 | |
6300502b MP |
740 | static int property_get_current_tasks( |
741 | sd_bus *bus, | |
742 | const char *path, | |
743 | const char *interface, | |
744 | const char *property, | |
745 | sd_bus_message *reply, | |
746 | void *userdata, | |
747 | sd_bus_error *error) { | |
748 | ||
749 | uint64_t cn = (uint64_t) -1; | |
750 | Unit *u = userdata; | |
751 | int r; | |
752 | ||
753 | assert(bus); | |
754 | assert(reply); | |
755 | assert(u); | |
756 | ||
757 | r = unit_get_tasks_current(u, &cn); | |
758 | if (r < 0 && r != -ENODATA) | |
759 | log_unit_warning_errno(u, r, "Failed to get pids.current attribute: %m"); | |
760 | ||
761 | return sd_bus_message_append(reply, "t", cn); | |
762 | } | |
763 | ||
e3bff60a MP |
764 | static int property_get_cpu_usage( |
765 | sd_bus *bus, | |
766 | const char *path, | |
767 | const char *interface, | |
768 | const char *property, | |
769 | sd_bus_message *reply, | |
770 | void *userdata, | |
771 | sd_bus_error *error) { | |
e735f4d4 | 772 | |
e3bff60a MP |
773 | nsec_t ns = (nsec_t) -1; |
774 | Unit *u = userdata; | |
775 | int r; | |
776 | ||
777 | assert(bus); | |
778 | assert(reply); | |
779 | assert(u); | |
780 | ||
781 | r = unit_get_cpu_usage(u, &ns); | |
782 | if (r < 0 && r != -ENODATA) | |
783 | log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m"); | |
784 | ||
785 | return sd_bus_message_append(reply, "t", ns); | |
e735f4d4 MP |
786 | } |
787 | ||
13d276d0 MP |
788 | static int property_get_cgroup( |
789 | sd_bus *bus, | |
790 | const char *path, | |
791 | const char *interface, | |
792 | const char *property, | |
793 | sd_bus_message *reply, | |
794 | void *userdata, | |
795 | sd_bus_error *error) { | |
796 | ||
797 | Unit *u = userdata; | |
798 | const char *t; | |
799 | ||
800 | assert(bus); | |
801 | assert(reply); | |
802 | assert(u); | |
803 | ||
804 | /* Three cases: a) u->cgroup_path is NULL, in which case the | |
805 | * unit has no control group, which we report as the empty | |
806 | * string. b) u->cgroup_path is the empty string, which | |
807 | * indicates the root cgroup, which we report as "/". c) all | |
808 | * other cases we report as-is. */ | |
809 | ||
810 | if (u->cgroup_path) | |
811 | t = isempty(u->cgroup_path) ? "/" : u->cgroup_path; | |
812 | else | |
813 | t = ""; | |
814 | ||
815 | return sd_bus_message_append(reply, "s", t); | |
816 | } | |
817 | ||
60f067b4 JS |
818 | const sd_bus_vtable bus_unit_cgroup_vtable[] = { |
819 | SD_BUS_VTABLE_START(0), | |
820 | SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0), | |
13d276d0 | 821 | SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0), |
e735f4d4 | 822 | SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0), |
e3bff60a | 823 | SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0), |
6300502b | 824 | SD_BUS_PROPERTY("TasksCurrent", "t", property_get_current_tasks, 0, 0), |
60f067b4 JS |
825 | SD_BUS_VTABLE_END |
826 | }; | |
663996b3 | 827 | |
60f067b4 JS |
828 | static int send_new_signal(sd_bus *bus, void *userdata) { |
829 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; | |
830 | _cleanup_free_ char *p = NULL; | |
831 | Unit *u = userdata; | |
832 | int r; | |
663996b3 | 833 | |
60f067b4 JS |
834 | assert(bus); |
835 | assert(u); | |
663996b3 | 836 | |
60f067b4 | 837 | p = unit_dbus_path(u); |
e3bff60a | 838 | if (!p) |
60f067b4 | 839 | return -ENOMEM; |
663996b3 | 840 | |
60f067b4 JS |
841 | r = sd_bus_message_new_signal( |
842 | bus, | |
843 | &m, | |
844 | "/org/freedesktop/systemd1", | |
845 | "org.freedesktop.systemd1.Manager", | |
846 | "UnitNew"); | |
847 | if (r < 0) | |
848 | return r; | |
663996b3 | 849 | |
60f067b4 JS |
850 | r = sd_bus_message_append(m, "so", u->id, p); |
851 | if (r < 0) | |
852 | return r; | |
663996b3 | 853 | |
60f067b4 JS |
854 | return sd_bus_send(bus, m, NULL); |
855 | } | |
663996b3 | 856 | |
60f067b4 JS |
857 | static int send_changed_signal(sd_bus *bus, void *userdata) { |
858 | _cleanup_free_ char *p = NULL; | |
859 | Unit *u = userdata; | |
860 | int r; | |
663996b3 | 861 | |
60f067b4 JS |
862 | assert(bus); |
863 | assert(u); | |
663996b3 | 864 | |
60f067b4 JS |
865 | p = unit_dbus_path(u); |
866 | if (!p) | |
867 | return -ENOMEM; | |
663996b3 | 868 | |
60f067b4 JS |
869 | /* Send a properties changed signal. First for the specific |
870 | * type, then for the generic unit. The clients may rely on | |
871 | * this order to get atomic behavior if needed. */ | |
663996b3 | 872 | |
60f067b4 JS |
873 | r = sd_bus_emit_properties_changed_strv( |
874 | bus, p, | |
d9dfd233 | 875 | unit_dbus_interface_from_type(u->type), |
60f067b4 JS |
876 | NULL); |
877 | if (r < 0) | |
878 | return r; | |
663996b3 | 879 | |
60f067b4 JS |
880 | return sd_bus_emit_properties_changed_strv( |
881 | bus, p, | |
882 | "org.freedesktop.systemd1.Unit", | |
883 | NULL); | |
884 | } | |
663996b3 MS |
885 | |
886 | void bus_unit_send_change_signal(Unit *u) { | |
14228c0d | 887 | int r; |
663996b3 MS |
888 | assert(u); |
889 | ||
890 | if (u->in_dbus_queue) { | |
60f067b4 | 891 | LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
663996b3 MS |
892 | u->in_dbus_queue = false; |
893 | } | |
894 | ||
895 | if (!u->id) | |
896 | return; | |
897 | ||
60f067b4 JS |
898 | r = bus_foreach_bus(u->manager, NULL, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u); |
899 | if (r < 0) | |
e3bff60a | 900 | log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id); |
663996b3 | 901 | |
60f067b4 JS |
902 | u->sent_dbus_new_signal = true; |
903 | } | |
663996b3 | 904 | |
60f067b4 JS |
905 | static int send_removed_signal(sd_bus *bus, void *userdata) { |
906 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; | |
907 | _cleanup_free_ char *p = NULL; | |
908 | Unit *u = userdata; | |
909 | int r; | |
663996b3 | 910 | |
60f067b4 JS |
911 | assert(bus); |
912 | assert(u); | |
663996b3 | 913 | |
60f067b4 | 914 | p = unit_dbus_path(u); |
e3bff60a | 915 | if (!p) |
60f067b4 | 916 | return -ENOMEM; |
663996b3 | 917 | |
60f067b4 JS |
918 | r = sd_bus_message_new_signal( |
919 | bus, | |
920 | &m, | |
921 | "/org/freedesktop/systemd1", | |
922 | "org.freedesktop.systemd1.Manager", | |
923 | "UnitRemoved"); | |
924 | if (r < 0) | |
925 | return r; | |
663996b3 | 926 | |
60f067b4 JS |
927 | r = sd_bus_message_append(m, "so", u->id, p); |
928 | if (r < 0) | |
929 | return r; | |
663996b3 | 930 | |
60f067b4 | 931 | return sd_bus_send(bus, m, NULL); |
663996b3 MS |
932 | } |
933 | ||
934 | void bus_unit_send_removed_signal(Unit *u) { | |
60f067b4 | 935 | int r; |
663996b3 MS |
936 | assert(u); |
937 | ||
663996b3 MS |
938 | if (!u->sent_dbus_new_signal) |
939 | bus_unit_send_change_signal(u); | |
940 | ||
941 | if (!u->id) | |
942 | return; | |
943 | ||
60f067b4 JS |
944 | r = bus_foreach_bus(u->manager, NULL, send_removed_signal, u); |
945 | if (r < 0) | |
e3bff60a | 946 | log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id); |
663996b3 MS |
947 | } |
948 | ||
60f067b4 | 949 | int bus_unit_queue_job( |
60f067b4 | 950 | sd_bus_message *message, |
663996b3 MS |
951 | Unit *u, |
952 | JobType type, | |
953 | JobMode mode, | |
60f067b4 JS |
954 | bool reload_if_possible, |
955 | sd_bus_error *error) { | |
663996b3 | 956 | |
663996b3 MS |
957 | _cleanup_free_ char *path = NULL; |
958 | Job *j; | |
663996b3 MS |
959 | int r; |
960 | ||
663996b3 MS |
961 | assert(message); |
962 | assert(u); | |
963 | assert(type >= 0 && type < _JOB_TYPE_MAX); | |
964 | assert(mode >= 0 && mode < _JOB_MODE_MAX); | |
965 | ||
663996b3 MS |
966 | if (reload_if_possible && unit_can_reload(u)) { |
967 | if (type == JOB_RESTART) | |
968 | type = JOB_RELOAD_OR_START; | |
969 | else if (type == JOB_TRY_RESTART) | |
970 | type = JOB_RELOAD; | |
971 | } | |
972 | ||
5eef597e | 973 | r = mac_selinux_unit_access_check( |
60f067b4 JS |
974 | u, message, |
975 | (type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" : | |
976 | type == JOB_STOP ? "stop" : "reload", error); | |
977 | if (r < 0) | |
978 | return r; | |
663996b3 | 979 | |
60f067b4 JS |
980 | if (type == JOB_STOP && |
981 | (u->load_state == UNIT_NOT_FOUND || u->load_state == UNIT_ERROR) && | |
982 | unit_active_state(u) == UNIT_INACTIVE) | |
983 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id); | |
663996b3 MS |
984 | |
985 | if ((type == JOB_START && u->refuse_manual_start) || | |
986 | (type == JOB_STOP && u->refuse_manual_stop) || | |
60f067b4 JS |
987 | ((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop))) |
988 | return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id); | |
663996b3 | 989 | |
60f067b4 | 990 | r = manager_add_job(u->manager, type, u, mode, true, error, &j); |
663996b3 | 991 | if (r < 0) |
60f067b4 | 992 | return r; |
663996b3 | 993 | |
e3bff60a | 994 | if (sd_bus_message_get_bus(message) == u->manager->api_bus) { |
5eef597e | 995 | if (!j->clients) { |
e3bff60a | 996 | r = sd_bus_track_new(sd_bus_message_get_bus(message), &j->clients, NULL, NULL); |
60f067b4 JS |
997 | if (r < 0) |
998 | return r; | |
999 | } | |
663996b3 | 1000 | |
5eef597e | 1001 | r = sd_bus_track_add_sender(j->clients, message); |
60f067b4 JS |
1002 | if (r < 0) |
1003 | return r; | |
1004 | } | |
663996b3 MS |
1005 | |
1006 | path = job_dbus_path(j); | |
1007 | if (!path) | |
60f067b4 | 1008 | return -ENOMEM; |
663996b3 | 1009 | |
60f067b4 | 1010 | return sd_bus_reply_method_return(message, "o", path); |
663996b3 MS |
1011 | } |
1012 | ||
14228c0d MB |
1013 | static int bus_unit_set_transient_property( |
1014 | Unit *u, | |
1015 | const char *name, | |
60f067b4 | 1016 | sd_bus_message *message, |
14228c0d | 1017 | UnitSetPropertiesMode mode, |
60f067b4 | 1018 | sd_bus_error *error) { |
663996b3 | 1019 | |
663996b3 MS |
1020 | int r; |
1021 | ||
1022 | assert(u); | |
14228c0d | 1023 | assert(name); |
60f067b4 | 1024 | assert(message); |
663996b3 | 1025 | |
14228c0d | 1026 | if (streq(name, "Description")) { |
60f067b4 | 1027 | const char *d; |
663996b3 | 1028 | |
60f067b4 JS |
1029 | r = sd_bus_message_read(message, "s", &d); |
1030 | if (r < 0) | |
1031 | return r; | |
663996b3 | 1032 | |
60f067b4 JS |
1033 | if (mode != UNIT_CHECK) { |
1034 | r = unit_set_description(u, d); | |
14228c0d MB |
1035 | if (r < 0) |
1036 | return r; | |
663996b3 | 1037 | |
60f067b4 | 1038 | unit_write_drop_in_format(u, mode, name, "[Unit]\nDescription=%s\n", d); |
14228c0d | 1039 | } |
663996b3 | 1040 | |
14228c0d | 1041 | return 1; |
e735f4d4 MP |
1042 | |
1043 | } else if (streq(name, "DefaultDependencies")) { | |
1044 | int b; | |
1045 | ||
1046 | r = sd_bus_message_read(message, "b", &b); | |
1047 | if (r < 0) | |
1048 | return r; | |
1049 | ||
1050 | if (mode != UNIT_CHECK) { | |
1051 | u->default_dependencies = b; | |
1052 | unit_write_drop_in_format(u, mode, name, "[Unit]\nDefaultDependencies=%s\n", yes_no(b)); | |
1053 | } | |
1054 | ||
1055 | return 1; | |
663996b3 | 1056 | |
d9dfd233 MP |
1057 | } else if (streq(name, "Slice")) { |
1058 | Unit *slice; | |
14228c0d | 1059 | const char *s; |
663996b3 | 1060 | |
d9dfd233 MP |
1061 | if (!UNIT_HAS_CGROUP_CONTEXT(u)) |
1062 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups."); | |
1063 | if (u->type == UNIT_SLICE) | |
1064 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units."); | |
1065 | if (unit_has_name(u, SPECIAL_INIT_SCOPE)) | |
1066 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope"); | |
1067 | ||
60f067b4 JS |
1068 | r = sd_bus_message_read(message, "s", &s); |
1069 | if (r < 0) | |
1070 | return r; | |
663996b3 | 1071 | |
d9dfd233 MP |
1072 | if (!unit_name_is_valid(s, UNIT_NAME_PLAIN)) |
1073 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s); | |
663996b3 | 1074 | |
d9dfd233 MP |
1075 | r = manager_load_unit(u->manager, s, NULL, error, &slice); |
1076 | if (r < 0) | |
1077 | return r; | |
663996b3 | 1078 | |
d9dfd233 MP |
1079 | if (slice->type != UNIT_SLICE) |
1080 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s); | |
1081 | ||
1082 | if (mode != UNIT_CHECK) { | |
1083 | r = unit_set_slice(u, slice); | |
14228c0d MB |
1084 | if (r < 0) |
1085 | return r; | |
663996b3 | 1086 | |
d9dfd233 | 1087 | unit_write_drop_in_private_format(u, mode, name, "Slice=%s\n", s); |
14228c0d | 1088 | } |
663996b3 | 1089 | |
14228c0d | 1090 | return 1; |
d9dfd233 | 1091 | |
f47781d8 MP |
1092 | } else if (STR_IN_SET(name, |
1093 | "Requires", "RequiresOverridable", | |
1094 | "Requisite", "RequisiteOverridable", | |
1095 | "Wants", | |
1096 | "BindsTo", | |
1097 | "Conflicts", | |
1098 | "Before", "After", | |
1099 | "OnFailure", | |
1100 | "PropagatesReloadTo", "ReloadPropagatedFrom", | |
1101 | "PartOf")) { | |
14228c0d MB |
1102 | |
1103 | UnitDependency d; | |
60f067b4 | 1104 | const char *other; |
14228c0d MB |
1105 | |
1106 | d = unit_dependency_from_string(name); | |
1107 | if (d < 0) | |
1108 | return -EINVAL; | |
663996b3 | 1109 | |
60f067b4 JS |
1110 | r = sd_bus_message_enter_container(message, 'a', "s"); |
1111 | if (r < 0) | |
1112 | return r; | |
663996b3 | 1113 | |
60f067b4 | 1114 | while ((r = sd_bus_message_read(message, "s", &other)) > 0) { |
e3bff60a | 1115 | if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
60f067b4 | 1116 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other); |
663996b3 | 1117 | |
14228c0d MB |
1118 | if (mode != UNIT_CHECK) { |
1119 | _cleanup_free_ char *label = NULL; | |
663996b3 | 1120 | |
14228c0d MB |
1121 | r = unit_add_dependency_by_name(u, d, other, NULL, true); |
1122 | if (r < 0) | |
1123 | return r; | |
663996b3 | 1124 | |
14228c0d MB |
1125 | label = strjoin(name, "-", other, NULL); |
1126 | if (!label) | |
1127 | return -ENOMEM; | |
663996b3 | 1128 | |
14228c0d MB |
1129 | unit_write_drop_in_format(u, mode, label, "[Unit]\n%s=%s\n", name, other); |
1130 | } | |
663996b3 | 1131 | |
14228c0d | 1132 | } |
60f067b4 JS |
1133 | if (r < 0) |
1134 | return r; | |
1135 | ||
1136 | r = sd_bus_message_exit_container(message); | |
1137 | if (r < 0) | |
1138 | return r; | |
663996b3 | 1139 | |
14228c0d | 1140 | return 1; |
663996b3 MS |
1141 | } |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
14228c0d MB |
1146 | int bus_unit_set_properties( |
1147 | Unit *u, | |
60f067b4 | 1148 | sd_bus_message *message, |
14228c0d MB |
1149 | UnitSetPropertiesMode mode, |
1150 | bool commit, | |
60f067b4 | 1151 | sd_bus_error *error) { |
14228c0d MB |
1152 | |
1153 | bool for_real = false; | |
14228c0d | 1154 | unsigned n = 0; |
663996b3 MS |
1155 | int r; |
1156 | ||
1157 | assert(u); | |
60f067b4 | 1158 | assert(message); |
663996b3 | 1159 | |
14228c0d MB |
1160 | /* We iterate through the array twice. First run we just check |
1161 | * if all passed data is valid, second run actually applies | |
1162 | * it. This is to implement transaction-like behaviour without | |
1163 | * actually providing full transactions. */ | |
663996b3 | 1164 | |
60f067b4 JS |
1165 | r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
1166 | if (r < 0) | |
1167 | return r; | |
663996b3 | 1168 | |
14228c0d | 1169 | for (;;) { |
14228c0d | 1170 | const char *name; |
663996b3 | 1171 | |
60f067b4 JS |
1172 | r = sd_bus_message_enter_container(message, 'r', "sv"); |
1173 | if (r < 0) | |
1174 | return r; | |
1175 | if (r == 0) { | |
14228c0d MB |
1176 | if (for_real || mode == UNIT_CHECK) |
1177 | break; | |
663996b3 | 1178 | |
14228c0d | 1179 | /* Reached EOF. Let's try again, and this time for realz... */ |
60f067b4 JS |
1180 | r = sd_bus_message_rewind(message, false); |
1181 | if (r < 0) | |
1182 | return r; | |
1183 | ||
14228c0d | 1184 | for_real = true; |
663996b3 | 1185 | continue; |
663996b3 | 1186 | } |
663996b3 | 1187 | |
60f067b4 JS |
1188 | r = sd_bus_message_read(message, "s", &name); |
1189 | if (r < 0) | |
1190 | return r; | |
663996b3 | 1191 | |
60f067b4 JS |
1192 | if (!UNIT_VTABLE(u)->bus_set_property) |
1193 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties."); | |
663996b3 | 1194 | |
60f067b4 JS |
1195 | r = sd_bus_message_enter_container(message, 'v', NULL); |
1196 | if (r < 0) | |
1197 | return r; | |
663996b3 | 1198 | |
60f067b4 | 1199 | r = UNIT_VTABLE(u)->bus_set_property(u, name, message, for_real ? mode : UNIT_CHECK, error); |
14228c0d | 1200 | if (r == 0 && u->transient && u->load_state == UNIT_STUB) |
60f067b4 | 1201 | r = bus_unit_set_transient_property(u, name, message, for_real ? mode : UNIT_CHECK, error); |
663996b3 MS |
1202 | if (r < 0) |
1203 | return r; | |
60f067b4 JS |
1204 | if (r == 0) |
1205 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name); | |
663996b3 | 1206 | |
60f067b4 JS |
1207 | r = sd_bus_message_exit_container(message); |
1208 | if (r < 0) | |
1209 | return r; | |
1210 | ||
1211 | r = sd_bus_message_exit_container(message); | |
1212 | if (r < 0) | |
1213 | return r; | |
663996b3 | 1214 | |
14228c0d MB |
1215 | n += for_real; |
1216 | } | |
663996b3 | 1217 | |
60f067b4 JS |
1218 | r = sd_bus_message_exit_container(message); |
1219 | if (r < 0) | |
1220 | return r; | |
1221 | ||
14228c0d MB |
1222 | if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties) |
1223 | UNIT_VTABLE(u)->bus_commit_properties(u); | |
663996b3 | 1224 | |
14228c0d | 1225 | return n; |
663996b3 | 1226 | } |