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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
87f0e418 | 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 | ||
87f0e418 LP |
22 | #include <assert.h> |
23 | #include <errno.h> | |
24 | #include <string.h> | |
25 | #include <sys/epoll.h> | |
26 | #include <sys/timerfd.h> | |
27 | #include <sys/poll.h> | |
0301abf4 LP |
28 | #include <stdlib.h> |
29 | #include <unistd.h> | |
45fb0699 | 30 | #include <sys/stat.h> |
87f0e418 | 31 | |
877d54e9 LP |
32 | #include "systemd/sd-id128.h" |
33 | #include "systemd/sd-messages.h" | |
87f0e418 LP |
34 | #include "set.h" |
35 | #include "unit.h" | |
36 | #include "macro.h" | |
37 | #include "strv.h" | |
9eb977db | 38 | #include "path-util.h" |
87f0e418 LP |
39 | #include "load-fragment.h" |
40 | #include "load-dropin.h" | |
41 | #include "log.h" | |
9e2f7c11 | 42 | #include "unit-name.h" |
4139c1b2 | 43 | #include "dbus-unit.h" |
514f4ef5 | 44 | #include "special.h" |
c6c18be3 | 45 | #include "cgroup-util.h" |
4927fcae | 46 | #include "missing.h" |
ab1f0633 | 47 | #include "cgroup-attr.h" |
71645aca | 48 | #include "mkdir.h" |
a5c32cff HH |
49 | #include "label.h" |
50 | #include "fileio-label.h" | |
814cc562 | 51 | #include "bus-errors.h" |
87f0e418 LP |
52 | |
53 | const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX] = { | |
54 | [UNIT_SERVICE] = &service_vtable, | |
55 | [UNIT_TIMER] = &timer_vtable, | |
56 | [UNIT_SOCKET] = &socket_vtable, | |
57 | [UNIT_TARGET] = &target_vtable, | |
58 | [UNIT_DEVICE] = &device_vtable, | |
59 | [UNIT_MOUNT] = &mount_vtable, | |
60 | [UNIT_AUTOMOUNT] = &automount_vtable, | |
07b0b134 | 61 | [UNIT_SNAPSHOT] = &snapshot_vtable, |
01f78473 LP |
62 | [UNIT_SWAP] = &swap_vtable, |
63 | [UNIT_PATH] = &path_vtable | |
87f0e418 LP |
64 | }; |
65 | ||
7d17cfbc | 66 | Unit *unit_new(Manager *m, size_t size) { |
87f0e418 LP |
67 | Unit *u; |
68 | ||
69 | assert(m); | |
ac155bb8 | 70 | assert(size >= sizeof(Unit)); |
87f0e418 | 71 | |
7d17cfbc MS |
72 | u = malloc0(size); |
73 | if (!u) | |
87f0e418 LP |
74 | return NULL; |
75 | ||
ac155bb8 MS |
76 | u->names = set_new(string_hash_func, string_compare_func); |
77 | if (!u->names) { | |
87f0e418 LP |
78 | free(u); |
79 | return NULL; | |
80 | } | |
81 | ||
ac155bb8 MS |
82 | u->manager = m; |
83 | u->type = _UNIT_TYPE_INVALID; | |
84 | u->deserialized_job = _JOB_TYPE_INVALID; | |
85 | u->default_dependencies = true; | |
86 | u->unit_file_state = _UNIT_FILE_STATE_INVALID; | |
87f0e418 LP |
87 | |
88 | return u; | |
89 | } | |
90 | ||
f278026d LP |
91 | bool unit_has_name(Unit *u, const char *name) { |
92 | assert(u); | |
93 | assert(name); | |
94 | ||
ac155bb8 | 95 | return !!set_get(u->names, (char*) name); |
f278026d LP |
96 | } |
97 | ||
87f0e418 LP |
98 | int unit_add_name(Unit *u, const char *text) { |
99 | UnitType t; | |
276c3e78 | 100 | char *s, *i = NULL; |
87f0e418 LP |
101 | int r; |
102 | ||
103 | assert(u); | |
104 | assert(text); | |
105 | ||
9e2f7c11 | 106 | if (unit_name_is_template(text)) { |
ac155bb8 | 107 | if (!u->instance) |
9e2f7c11 | 108 | return -EINVAL; |
87f0e418 | 109 | |
ac155bb8 | 110 | s = unit_name_replace_instance(text, u->instance); |
9e2f7c11 LP |
111 | } else |
112 | s = strdup(text); | |
87f0e418 | 113 | |
9e2f7c11 LP |
114 | if (!s) |
115 | return -ENOMEM; | |
87f0e418 | 116 | |
b9c0d441 | 117 | if (!unit_name_is_valid(s, false)) { |
9e2f7c11 LP |
118 | r = -EINVAL; |
119 | goto fail; | |
120 | } | |
e537352b | 121 | |
9e2f7c11 | 122 | assert_se((t = unit_name_to_type(s)) >= 0); |
87f0e418 | 123 | |
ac155bb8 | 124 | if (u->type != _UNIT_TYPE_INVALID && t != u->type) { |
9e2f7c11 LP |
125 | r = -EINVAL; |
126 | goto fail; | |
127 | } | |
87f0e418 | 128 | |
9e2f7c11 LP |
129 | if ((r = unit_name_to_instance(s, &i)) < 0) |
130 | goto fail; | |
87f0e418 | 131 | |
796ba554 LP |
132 | if (i && unit_vtable[t]->no_instances) { |
133 | r = -EINVAL; | |
9e2f7c11 | 134 | goto fail; |
796ba554 | 135 | } |
9e2f7c11 | 136 | |
276c3e78 LP |
137 | /* Ensure that this unit is either instanced or not instanced, |
138 | * but not both. */ | |
ac155bb8 | 139 | if (u->type != _UNIT_TYPE_INVALID && !u->instance != !i) { |
9e2f7c11 LP |
140 | r = -EINVAL; |
141 | goto fail; | |
142 | } | |
143 | ||
144 | if (unit_vtable[t]->no_alias && | |
ac155bb8 MS |
145 | !set_isempty(u->names) && |
146 | !set_get(u->names, s)) { | |
9e2f7c11 LP |
147 | r = -EEXIST; |
148 | goto fail; | |
149 | } | |
150 | ||
ac155bb8 | 151 | if (hashmap_size(u->manager->units) >= MANAGER_MAX_NAMES) { |
4f0f902f LP |
152 | r = -E2BIG; |
153 | goto fail; | |
154 | } | |
155 | ||
ac155bb8 | 156 | if ((r = set_put(u->names, s)) < 0) { |
9e2f7c11 LP |
157 | if (r == -EEXIST) |
158 | r = 0; | |
159 | goto fail; | |
87f0e418 LP |
160 | } |
161 | ||
ac155bb8 MS |
162 | if ((r = hashmap_put(u->manager->units, s, u)) < 0) { |
163 | set_remove(u->names, s); | |
9e2f7c11 | 164 | goto fail; |
87f0e418 LP |
165 | } |
166 | ||
ac155bb8 | 167 | if (u->type == _UNIT_TYPE_INVALID) { |
ef734fd6 | 168 | |
ac155bb8 MS |
169 | u->type = t; |
170 | u->id = s; | |
171 | u->instance = i; | |
9e2f7c11 | 172 | |
ac155bb8 | 173 | LIST_PREPEND(Unit, units_by_type, u->manager->units_by_type[t], u); |
e537352b LP |
174 | |
175 | if (UNIT_VTABLE(u)->init) | |
176 | UNIT_VTABLE(u)->init(u); | |
9e2f7c11 LP |
177 | } else |
178 | free(i); | |
87f0e418 | 179 | |
c1e1601e | 180 | unit_add_to_dbus_queue(u); |
87f0e418 | 181 | return 0; |
9e2f7c11 LP |
182 | |
183 | fail: | |
184 | free(s); | |
185 | free(i); | |
186 | ||
187 | return r; | |
87f0e418 LP |
188 | } |
189 | ||
0ae97ec1 | 190 | int unit_choose_id(Unit *u, const char *name) { |
276c3e78 LP |
191 | char *s, *t = NULL, *i; |
192 | int r; | |
0ae97ec1 LP |
193 | |
194 | assert(u); | |
195 | assert(name); | |
196 | ||
9e2f7c11 LP |
197 | if (unit_name_is_template(name)) { |
198 | ||
ac155bb8 | 199 | if (!u->instance) |
9e2f7c11 LP |
200 | return -EINVAL; |
201 | ||
ac155bb8 | 202 | if (!(t = unit_name_replace_instance(name, u->instance))) |
9e2f7c11 LP |
203 | return -ENOMEM; |
204 | ||
205 | name = t; | |
206 | } | |
207 | ||
0ae97ec1 | 208 | /* Selects one of the names of this unit as the id */ |
ac155bb8 | 209 | s = set_get(u->names, (char*) name); |
9e2f7c11 | 210 | free(t); |
0ae97ec1 | 211 | |
9e2f7c11 | 212 | if (!s) |
0ae97ec1 LP |
213 | return -ENOENT; |
214 | ||
276c3e78 LP |
215 | if ((r = unit_name_to_instance(s, &i)) < 0) |
216 | return r; | |
217 | ||
ac155bb8 | 218 | u->id = s; |
276c3e78 | 219 | |
ac155bb8 MS |
220 | free(u->instance); |
221 | u->instance = i; | |
276c3e78 | 222 | |
c1e1601e | 223 | unit_add_to_dbus_queue(u); |
9e2f7c11 | 224 | |
0ae97ec1 LP |
225 | return 0; |
226 | } | |
227 | ||
f50e0a01 LP |
228 | int unit_set_description(Unit *u, const char *description) { |
229 | char *s; | |
230 | ||
231 | assert(u); | |
232 | ||
233 | if (!(s = strdup(description))) | |
234 | return -ENOMEM; | |
235 | ||
ac155bb8 MS |
236 | free(u->description); |
237 | u->description = s; | |
c1e1601e LP |
238 | |
239 | unit_add_to_dbus_queue(u); | |
f50e0a01 LP |
240 | return 0; |
241 | } | |
242 | ||
701cc384 LP |
243 | bool unit_check_gc(Unit *u) { |
244 | assert(u); | |
245 | ||
ac155bb8 | 246 | if (u->load_state == UNIT_STUB) |
b86d44e5 LP |
247 | return true; |
248 | ||
701cc384 LP |
249 | if (UNIT_VTABLE(u)->no_gc) |
250 | return true; | |
251 | ||
ac155bb8 | 252 | if (u->no_gc) |
6c073082 LP |
253 | return true; |
254 | ||
ac155bb8 | 255 | if (u->job) |
701cc384 LP |
256 | return true; |
257 | ||
e0209d83 MS |
258 | if (u->nop_job) |
259 | return true; | |
260 | ||
701cc384 LP |
261 | if (unit_active_state(u) != UNIT_INACTIVE) |
262 | return true; | |
263 | ||
9d576438 LP |
264 | if (u->refs) |
265 | return true; | |
266 | ||
701cc384 LP |
267 | if (UNIT_VTABLE(u)->check_gc) |
268 | if (UNIT_VTABLE(u)->check_gc(u)) | |
269 | return true; | |
270 | ||
271 | return false; | |
272 | } | |
273 | ||
87f0e418 LP |
274 | void unit_add_to_load_queue(Unit *u) { |
275 | assert(u); | |
ac155bb8 | 276 | assert(u->type != _UNIT_TYPE_INVALID); |
87f0e418 | 277 | |
ac155bb8 | 278 | if (u->load_state != UNIT_STUB || u->in_load_queue) |
87f0e418 LP |
279 | return; |
280 | ||
ac155bb8 MS |
281 | LIST_PREPEND(Unit, load_queue, u->manager->load_queue, u); |
282 | u->in_load_queue = true; | |
87f0e418 LP |
283 | } |
284 | ||
23a177ef LP |
285 | void unit_add_to_cleanup_queue(Unit *u) { |
286 | assert(u); | |
287 | ||
ac155bb8 | 288 | if (u->in_cleanup_queue) |
23a177ef LP |
289 | return; |
290 | ||
ac155bb8 MS |
291 | LIST_PREPEND(Unit, cleanup_queue, u->manager->cleanup_queue, u); |
292 | u->in_cleanup_queue = true; | |
23a177ef LP |
293 | } |
294 | ||
701cc384 LP |
295 | void unit_add_to_gc_queue(Unit *u) { |
296 | assert(u); | |
297 | ||
ac155bb8 | 298 | if (u->in_gc_queue || u->in_cleanup_queue) |
701cc384 LP |
299 | return; |
300 | ||
301 | if (unit_check_gc(u)) | |
302 | return; | |
303 | ||
ac155bb8 MS |
304 | LIST_PREPEND(Unit, gc_queue, u->manager->gc_queue, u); |
305 | u->in_gc_queue = true; | |
701cc384 | 306 | |
ac155bb8 | 307 | u->manager->n_in_gc_queue ++; |
701cc384 | 308 | |
ac155bb8 MS |
309 | if (u->manager->gc_queue_timestamp <= 0) |
310 | u->manager->gc_queue_timestamp = now(CLOCK_MONOTONIC); | |
701cc384 LP |
311 | } |
312 | ||
c1e1601e LP |
313 | void unit_add_to_dbus_queue(Unit *u) { |
314 | assert(u); | |
ac155bb8 | 315 | assert(u->type != _UNIT_TYPE_INVALID); |
c1e1601e | 316 | |
ac155bb8 | 317 | if (u->load_state == UNIT_STUB || u->in_dbus_queue) |
c1e1601e LP |
318 | return; |
319 | ||
a567261a | 320 | /* Shortcut things if nobody cares */ |
ac155bb8 MS |
321 | if (!bus_has_subscriber(u->manager)) { |
322 | u->sent_dbus_new_signal = true; | |
94b6dfa2 LP |
323 | return; |
324 | } | |
325 | ||
ac155bb8 MS |
326 | LIST_PREPEND(Unit, dbus_queue, u->manager->dbus_unit_queue, u); |
327 | u->in_dbus_queue = true; | |
c1e1601e LP |
328 | } |
329 | ||
87f0e418 LP |
330 | static void bidi_set_free(Unit *u, Set *s) { |
331 | Iterator i; | |
332 | Unit *other; | |
333 | ||
334 | assert(u); | |
335 | ||
336 | /* Frees the set and makes sure we are dropped from the | |
337 | * inverse pointers */ | |
338 | ||
339 | SET_FOREACH(other, s, i) { | |
340 | UnitDependency d; | |
341 | ||
342 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
ac155bb8 | 343 | set_remove(other->dependencies[d], u); |
701cc384 LP |
344 | |
345 | unit_add_to_gc_queue(other); | |
87f0e418 LP |
346 | } |
347 | ||
348 | set_free(s); | |
349 | } | |
350 | ||
351 | void unit_free(Unit *u) { | |
352 | UnitDependency d; | |
353 | Iterator i; | |
354 | char *t; | |
355 | ||
356 | assert(u); | |
357 | ||
c1e1601e LP |
358 | bus_unit_send_removed_signal(u); |
359 | ||
ac155bb8 | 360 | if (u->load_state != UNIT_STUB) |
a013b84b LP |
361 | if (UNIT_VTABLE(u)->done) |
362 | UNIT_VTABLE(u)->done(u); | |
363 | ||
ac155bb8 MS |
364 | SET_FOREACH(t, u->names, i) |
365 | hashmap_remove_value(u->manager->units, t, u); | |
87f0e418 | 366 | |
97e7d748 MS |
367 | if (u->job) { |
368 | Job *j = u->job; | |
369 | job_uninstall(j); | |
370 | job_free(j); | |
371 | } | |
964e0949 | 372 | |
e0209d83 MS |
373 | if (u->nop_job) { |
374 | Job *j = u->nop_job; | |
375 | job_uninstall(j); | |
376 | job_free(j); | |
377 | } | |
378 | ||
964e0949 | 379 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) |
ac155bb8 | 380 | bidi_set_free(u, u->dependencies[d]); |
964e0949 | 381 | |
7c8fa05c LP |
382 | if (u->requires_mounts_for) { |
383 | LIST_REMOVE(Unit, has_requires_mounts_for, u->manager->has_requires_mounts_for, u); | |
384 | strv_free(u->requires_mounts_for); | |
385 | } | |
386 | ||
ac155bb8 MS |
387 | if (u->type != _UNIT_TYPE_INVALID) |
388 | LIST_REMOVE(Unit, units_by_type, u->manager->units_by_type[u->type], u); | |
ef734fd6 | 389 | |
ac155bb8 MS |
390 | if (u->in_load_queue) |
391 | LIST_REMOVE(Unit, load_queue, u->manager->load_queue, u); | |
87f0e418 | 392 | |
ac155bb8 MS |
393 | if (u->in_dbus_queue) |
394 | LIST_REMOVE(Unit, dbus_queue, u->manager->dbus_unit_queue, u); | |
c1e1601e | 395 | |
ac155bb8 MS |
396 | if (u->in_cleanup_queue) |
397 | LIST_REMOVE(Unit, cleanup_queue, u->manager->cleanup_queue, u); | |
23a177ef | 398 | |
ac155bb8 MS |
399 | if (u->in_gc_queue) { |
400 | LIST_REMOVE(Unit, gc_queue, u->manager->gc_queue, u); | |
401 | u->manager->n_in_gc_queue--; | |
701cc384 LP |
402 | } |
403 | ||
ac155bb8 MS |
404 | cgroup_bonding_free_list(u->cgroup_bondings, u->manager->n_reloading <= 0); |
405 | cgroup_attribute_free_list(u->cgroup_attributes); | |
87f0e418 | 406 | |
ac155bb8 | 407 | free(u->description); |
49dbfa7b | 408 | strv_free(u->documentation); |
ac155bb8 | 409 | free(u->fragment_path); |
1b64d026 | 410 | free(u->source_path); |
ae7a7182 | 411 | strv_free(u->dropin_paths); |
ac155bb8 | 412 | free(u->instance); |
87f0e418 | 413 | |
ac155bb8 | 414 | set_free_free(u->names); |
87f0e418 | 415 | |
ac155bb8 | 416 | condition_free_list(u->conditions); |
52661efd | 417 | |
ac155bb8 MS |
418 | while (u->refs) |
419 | unit_ref_unset(u->refs); | |
57020a3a | 420 | |
87f0e418 LP |
421 | free(u); |
422 | } | |
423 | ||
424 | UnitActiveState unit_active_state(Unit *u) { | |
425 | assert(u); | |
426 | ||
ac155bb8 | 427 | if (u->load_state == UNIT_MERGED) |
6124958c LP |
428 | return unit_active_state(unit_follow_merge(u)); |
429 | ||
430 | /* After a reload it might happen that a unit is not correctly | |
431 | * loaded but still has a process around. That's why we won't | |
fdf20a31 | 432 | * shortcut failed loading to UNIT_INACTIVE_FAILED. */ |
87f0e418 LP |
433 | |
434 | return UNIT_VTABLE(u)->active_state(u); | |
435 | } | |
436 | ||
10a94420 LP |
437 | const char* unit_sub_state_to_string(Unit *u) { |
438 | assert(u); | |
439 | ||
440 | return UNIT_VTABLE(u)->sub_state_to_string(u); | |
441 | } | |
442 | ||
23a177ef LP |
443 | static void complete_move(Set **s, Set **other) { |
444 | assert(s); | |
445 | assert(other); | |
87f0e418 | 446 | |
23a177ef LP |
447 | if (!*other) |
448 | return; | |
87f0e418 LP |
449 | |
450 | if (*s) | |
23a177ef LP |
451 | set_move(*s, *other); |
452 | else { | |
453 | *s = *other; | |
454 | *other = NULL; | |
455 | } | |
456 | } | |
87f0e418 | 457 | |
23a177ef LP |
458 | static void merge_names(Unit *u, Unit *other) { |
459 | char *t; | |
460 | Iterator i; | |
87f0e418 | 461 | |
23a177ef LP |
462 | assert(u); |
463 | assert(other); | |
464 | ||
ac155bb8 | 465 | complete_move(&u->names, &other->names); |
23a177ef | 466 | |
ac155bb8 MS |
467 | set_free_free(other->names); |
468 | other->names = NULL; | |
469 | other->id = NULL; | |
23a177ef | 470 | |
ac155bb8 MS |
471 | SET_FOREACH(t, u->names, i) |
472 | assert_se(hashmap_replace(u->manager->units, t, u) == 0); | |
87f0e418 LP |
473 | } |
474 | ||
23a177ef LP |
475 | static void merge_dependencies(Unit *u, Unit *other, UnitDependency d) { |
476 | Iterator i; | |
477 | Unit *back; | |
87f0e418 | 478 | int r; |
23a177ef LP |
479 | |
480 | assert(u); | |
481 | assert(other); | |
482 | assert(d < _UNIT_DEPENDENCY_MAX); | |
483 | ||
83a95334 | 484 | /* Fix backwards pointers */ |
ac155bb8 | 485 | SET_FOREACH(back, other->dependencies[d], i) { |
23a177ef LP |
486 | UnitDependency k; |
487 | ||
488 | for (k = 0; k < _UNIT_DEPENDENCY_MAX; k++) | |
ac155bb8 | 489 | if ((r = set_remove_and_put(back->dependencies[k], other, u)) < 0) { |
23a177ef LP |
490 | |
491 | if (r == -EEXIST) | |
ac155bb8 | 492 | set_remove(back->dependencies[k], other); |
23a177ef LP |
493 | else |
494 | assert(r == -ENOENT); | |
495 | } | |
496 | } | |
497 | ||
ac155bb8 | 498 | complete_move(&u->dependencies[d], &other->dependencies[d]); |
23a177ef | 499 | |
ac155bb8 MS |
500 | set_free(other->dependencies[d]); |
501 | other->dependencies[d] = NULL; | |
23a177ef LP |
502 | } |
503 | ||
504 | int unit_merge(Unit *u, Unit *other) { | |
87f0e418 LP |
505 | UnitDependency d; |
506 | ||
507 | assert(u); | |
508 | assert(other); | |
ac155bb8 MS |
509 | assert(u->manager == other->manager); |
510 | assert(u->type != _UNIT_TYPE_INVALID); | |
87f0e418 | 511 | |
cc916967 LP |
512 | other = unit_follow_merge(other); |
513 | ||
23a177ef LP |
514 | if (other == u) |
515 | return 0; | |
516 | ||
ac155bb8 | 517 | if (u->type != other->type) |
9e2f7c11 LP |
518 | return -EINVAL; |
519 | ||
ac155bb8 | 520 | if (!u->instance != !other->instance) |
87f0e418 LP |
521 | return -EINVAL; |
522 | ||
ac155bb8 MS |
523 | if (other->load_state != UNIT_STUB && |
524 | other->load_state != UNIT_ERROR) | |
23a177ef | 525 | return -EEXIST; |
87f0e418 | 526 | |
ac155bb8 | 527 | if (other->job) |
819e213f LP |
528 | return -EEXIST; |
529 | ||
e0209d83 MS |
530 | if (other->nop_job) |
531 | return -EEXIST; | |
532 | ||
fdf20a31 | 533 | if (!UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(other))) |
819e213f LP |
534 | return -EEXIST; |
535 | ||
87f0e418 | 536 | /* Merge names */ |
23a177ef | 537 | merge_names(u, other); |
87f0e418 | 538 | |
57020a3a | 539 | /* Redirect all references */ |
ac155bb8 MS |
540 | while (other->refs) |
541 | unit_ref_set(other->refs, u); | |
57020a3a | 542 | |
87f0e418 LP |
543 | /* Merge dependencies */ |
544 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
23a177ef | 545 | merge_dependencies(u, other, d); |
87f0e418 | 546 | |
ac155bb8 MS |
547 | other->load_state = UNIT_MERGED; |
548 | other->merged_into = u; | |
23a177ef | 549 | |
3616a49c LP |
550 | /* If there is still some data attached to the other node, we |
551 | * don't need it anymore, and can free it. */ | |
ac155bb8 | 552 | if (other->load_state != UNIT_STUB) |
3616a49c LP |
553 | if (UNIT_VTABLE(other)->done) |
554 | UNIT_VTABLE(other)->done(other); | |
555 | ||
556 | unit_add_to_dbus_queue(u); | |
23a177ef LP |
557 | unit_add_to_cleanup_queue(other); |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
562 | int unit_merge_by_name(Unit *u, const char *name) { | |
563 | Unit *other; | |
9e2f7c11 LP |
564 | int r; |
565 | char *s = NULL; | |
23a177ef LP |
566 | |
567 | assert(u); | |
568 | assert(name); | |
569 | ||
9e2f7c11 | 570 | if (unit_name_is_template(name)) { |
ac155bb8 | 571 | if (!u->instance) |
9e2f7c11 LP |
572 | return -EINVAL; |
573 | ||
ac155bb8 | 574 | if (!(s = unit_name_replace_instance(name, u->instance))) |
9e2f7c11 LP |
575 | return -ENOMEM; |
576 | ||
577 | name = s; | |
578 | } | |
579 | ||
ac155bb8 | 580 | if (!(other = manager_get_unit(u->manager, name))) |
9e2f7c11 LP |
581 | r = unit_add_name(u, name); |
582 | else | |
583 | r = unit_merge(u, other); | |
23a177ef | 584 | |
9e2f7c11 LP |
585 | free(s); |
586 | return r; | |
23a177ef LP |
587 | } |
588 | ||
589 | Unit* unit_follow_merge(Unit *u) { | |
590 | assert(u); | |
591 | ||
ac155bb8 MS |
592 | while (u->load_state == UNIT_MERGED) |
593 | assert_se(u = u->merged_into); | |
23a177ef LP |
594 | |
595 | return u; | |
596 | } | |
597 | ||
598 | int unit_add_exec_dependencies(Unit *u, ExecContext *c) { | |
599 | int r; | |
600 | ||
601 | assert(u); | |
602 | assert(c); | |
603 | ||
ecc6e2b8 LP |
604 | if (c->std_output != EXEC_OUTPUT_KMSG && |
605 | c->std_output != EXEC_OUTPUT_SYSLOG && | |
706343f4 | 606 | c->std_output != EXEC_OUTPUT_JOURNAL && |
28dbc1e8 LP |
607 | c->std_output != EXEC_OUTPUT_KMSG_AND_CONSOLE && |
608 | c->std_output != EXEC_OUTPUT_SYSLOG_AND_CONSOLE && | |
706343f4 | 609 | c->std_output != EXEC_OUTPUT_JOURNAL_AND_CONSOLE && |
ecc6e2b8 | 610 | c->std_error != EXEC_OUTPUT_KMSG && |
085c98af | 611 | c->std_error != EXEC_OUTPUT_SYSLOG && |
706343f4 | 612 | c->std_error != EXEC_OUTPUT_JOURNAL && |
085c98af | 613 | c->std_error != EXEC_OUTPUT_KMSG_AND_CONSOLE && |
706343f4 | 614 | c->std_error != EXEC_OUTPUT_JOURNAL_AND_CONSOLE && |
28dbc1e8 | 615 | c->std_error != EXEC_OUTPUT_SYSLOG_AND_CONSOLE) |
23a177ef LP |
616 | return 0; |
617 | ||
618 | /* If syslog or kernel logging is requested, make sure our own | |
619 | * logging daemon is run first. */ | |
620 | ||
9d246da3 MS |
621 | if (u->manager->running_as == SYSTEMD_SYSTEM) { |
622 | r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_JOURNALD_SOCKET, NULL, true); | |
623 | if (r < 0) | |
23a177ef | 624 | return r; |
9d246da3 | 625 | } |
23a177ef | 626 | |
87f0e418 LP |
627 | return 0; |
628 | } | |
629 | ||
87f0e418 LP |
630 | const char *unit_description(Unit *u) { |
631 | assert(u); | |
632 | ||
ac155bb8 MS |
633 | if (u->description) |
634 | return u->description; | |
87f0e418 | 635 | |
ac155bb8 | 636 | return strna(u->id); |
87f0e418 LP |
637 | } |
638 | ||
639 | void unit_dump(Unit *u, FILE *f, const char *prefix) { | |
49dbfa7b | 640 | char *t, **j; |
87f0e418 LP |
641 | UnitDependency d; |
642 | Iterator i; | |
47be870b LP |
643 | char *p2; |
644 | const char *prefix2; | |
173e3821 LP |
645 | char |
646 | timestamp1[FORMAT_TIMESTAMP_MAX], | |
647 | timestamp2[FORMAT_TIMESTAMP_MAX], | |
648 | timestamp3[FORMAT_TIMESTAMP_MAX], | |
faf919f1 LP |
649 | timestamp4[FORMAT_TIMESTAMP_MAX], |
650 | timespan[FORMAT_TIMESPAN_MAX]; | |
a7f241db | 651 | Unit *following; |
87f0e418 LP |
652 | |
653 | assert(u); | |
ac155bb8 | 654 | assert(u->type >= 0); |
87f0e418 LP |
655 | |
656 | if (!prefix) | |
657 | prefix = ""; | |
47be870b LP |
658 | p2 = strappend(prefix, "\t"); |
659 | prefix2 = p2 ? p2 : prefix; | |
87f0e418 LP |
660 | |
661 | fprintf(f, | |
40d50879 | 662 | "%s-> Unit %s:\n" |
87f0e418 | 663 | "%s\tDescription: %s\n" |
9e2f7c11 | 664 | "%s\tInstance: %s\n" |
87f0e418 | 665 | "%s\tUnit Load State: %s\n" |
2fad8195 | 666 | "%s\tUnit Active State: %s\n" |
173e3821 | 667 | "%s\tInactive Exit Timestamp: %s\n" |
2fad8195 | 668 | "%s\tActive Enter Timestamp: %s\n" |
701cc384 | 669 | "%s\tActive Exit Timestamp: %s\n" |
173e3821 | 670 | "%s\tInactive Enter Timestamp: %s\n" |
45fb0699 LP |
671 | "%s\tGC Check Good: %s\n" |
672 | "%s\tNeed Daemon Reload: %s\n", | |
ac155bb8 | 673 | prefix, u->id, |
87f0e418 | 674 | prefix, unit_description(u), |
ac155bb8 MS |
675 | prefix, strna(u->instance), |
676 | prefix, unit_load_state_to_string(u->load_state), | |
2fad8195 | 677 | prefix, unit_active_state_to_string(unit_active_state(u)), |
ac155bb8 MS |
678 | prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->inactive_exit_timestamp.realtime)), |
679 | prefix, strna(format_timestamp(timestamp2, sizeof(timestamp2), u->active_enter_timestamp.realtime)), | |
680 | prefix, strna(format_timestamp(timestamp3, sizeof(timestamp3), u->active_exit_timestamp.realtime)), | |
681 | prefix, strna(format_timestamp(timestamp4, sizeof(timestamp4), u->inactive_enter_timestamp.realtime)), | |
45fb0699 LP |
682 | prefix, yes_no(unit_check_gc(u)), |
683 | prefix, yes_no(unit_need_daemon_reload(u))); | |
0301abf4 | 684 | |
ac155bb8 | 685 | SET_FOREACH(t, u->names, i) |
87f0e418 LP |
686 | fprintf(f, "%s\tName: %s\n", prefix, t); |
687 | ||
49dbfa7b LP |
688 | STRV_FOREACH(j, u->documentation) |
689 | fprintf(f, "%s\tDocumentation: %s\n", prefix, *j); | |
690 | ||
a7f241db | 691 | if ((following = unit_following(u))) |
ac155bb8 | 692 | fprintf(f, "%s\tFollowing: %s\n", prefix, following->id); |
8fe914ec | 693 | |
ac155bb8 MS |
694 | if (u->fragment_path) |
695 | fprintf(f, "%s\tFragment Path: %s\n", prefix, u->fragment_path); | |
23a177ef | 696 | |
1b64d026 LP |
697 | if (u->source_path) |
698 | fprintf(f, "%s\tSource Path: %s\n", prefix, u->source_path); | |
699 | ||
ae7a7182 | 700 | STRV_FOREACH(j, u->dropin_paths) |
2875e22b | 701 | fprintf(f, "%s\tDropIn Path: %s\n", prefix, *j); |
ae7a7182 | 702 | |
ac155bb8 | 703 | if (u->job_timeout > 0) |
2fa4092c | 704 | fprintf(f, "%s\tJob Timeout: %s\n", prefix, format_timespan(timespan, sizeof(timespan), u->job_timeout, 0)); |
faf919f1 | 705 | |
ac155bb8 | 706 | condition_dump_list(u->conditions, f, prefix); |
52661efd | 707 | |
ac155bb8 | 708 | if (dual_timestamp_is_set(&u->condition_timestamp)) |
2791a8f8 LP |
709 | fprintf(f, |
710 | "%s\tCondition Timestamp: %s\n" | |
711 | "%s\tCondition Result: %s\n", | |
ac155bb8 MS |
712 | prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->condition_timestamp.realtime)), |
713 | prefix, yes_no(u->condition_result)); | |
2791a8f8 | 714 | |
87f0e418 LP |
715 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) { |
716 | Unit *other; | |
717 | ||
ac155bb8 MS |
718 | SET_FOREACH(other, u->dependencies[d], i) |
719 | fprintf(f, "%s\t%s: %s\n", prefix, unit_dependency_to_string(d), other->id); | |
87f0e418 LP |
720 | } |
721 | ||
7c8fa05c | 722 | if (!strv_isempty(u->requires_mounts_for)) { |
7c8fa05c LP |
723 | fprintf(f, |
724 | "%s\tRequiresMountsFor:", prefix); | |
725 | ||
726 | STRV_FOREACH(j, u->requires_mounts_for) | |
727 | fprintf(f, " %s", *j); | |
728 | ||
729 | fputs("\n", f); | |
730 | } | |
731 | ||
ac155bb8 | 732 | if (u->load_state == UNIT_LOADED) { |
ab1f0633 LP |
733 | CGroupBonding *b; |
734 | CGroupAttribute *a; | |
735 | ||
b0650475 | 736 | fprintf(f, |
a40eb732 | 737 | "%s\tStopWhenUnneeded: %s\n" |
b5e9dba8 LP |
738 | "%s\tRefuseManualStart: %s\n" |
739 | "%s\tRefuseManualStop: %s\n" | |
222ae6a8 | 740 | "%s\tDefaultDependencies: %s\n" |
c8f4d764 | 741 | "%s\tOnFailureIsolate: %s\n" |
7a6000a6 LP |
742 | "%s\tIgnoreOnIsolate: %s\n" |
743 | "%s\tIgnoreOnSnapshot: %s\n", | |
ac155bb8 MS |
744 | prefix, yes_no(u->stop_when_unneeded), |
745 | prefix, yes_no(u->refuse_manual_start), | |
746 | prefix, yes_no(u->refuse_manual_stop), | |
747 | prefix, yes_no(u->default_dependencies), | |
748 | prefix, yes_no(u->on_failure_isolate), | |
749 | prefix, yes_no(u->ignore_on_isolate), | |
750 | prefix, yes_no(u->ignore_on_snapshot)); | |
751 | ||
752 | LIST_FOREACH(by_unit, b, u->cgroup_bondings) | |
23a177ef LP |
753 | fprintf(f, "%s\tControlGroup: %s:%s\n", |
754 | prefix, b->controller, b->path); | |
8e274523 | 755 | |
ac155bb8 | 756 | LIST_FOREACH(by_unit, a, u->cgroup_attributes) { |
26d04f86 | 757 | _cleanup_free_ char *v = NULL; |
d8bbda91 | 758 | |
26d04f86 LP |
759 | if (a->semantics && a->semantics->map_write) |
760 | a->semantics->map_write(a->semantics, a->value, &v); | |
d8bbda91 | 761 | |
ab1f0633 | 762 | fprintf(f, "%s\tControlGroupAttribute: %s %s \"%s\"\n", |
d8bbda91 | 763 | prefix, a->controller, a->name, v ? v : a->value); |
d8bbda91 | 764 | } |
ab1f0633 | 765 | |
23a177ef LP |
766 | if (UNIT_VTABLE(u)->dump) |
767 | UNIT_VTABLE(u)->dump(u, f, prefix2); | |
b0650475 | 768 | |
ac155bb8 | 769 | } else if (u->load_state == UNIT_MERGED) |
b0650475 LP |
770 | fprintf(f, |
771 | "%s\tMerged into: %s\n", | |
ac155bb8 MS |
772 | prefix, u->merged_into->id); |
773 | else if (u->load_state == UNIT_ERROR) | |
774 | fprintf(f, "%s\tLoad Error Code: %s\n", prefix, strerror(-u->load_error)); | |
8821a00f | 775 | |
87f0e418 | 776 | |
ac155bb8 MS |
777 | if (u->job) |
778 | job_dump(u->job, f, prefix2); | |
87f0e418 | 779 | |
e0209d83 MS |
780 | if (u->nop_job) |
781 | job_dump(u->nop_job, f, prefix2); | |
782 | ||
47be870b | 783 | free(p2); |
87f0e418 LP |
784 | } |
785 | ||
786 | /* Common implementation for multiple backends */ | |
e537352b | 787 | int unit_load_fragment_and_dropin(Unit *u) { |
23a177ef LP |
788 | int r; |
789 | ||
790 | assert(u); | |
23a177ef LP |
791 | |
792 | /* Load a .service file */ | |
e537352b | 793 | if ((r = unit_load_fragment(u)) < 0) |
23a177ef LP |
794 | return r; |
795 | ||
ac155bb8 | 796 | if (u->load_state == UNIT_STUB) |
23a177ef LP |
797 | return -ENOENT; |
798 | ||
799 | /* Load drop-in directory data */ | |
800 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) | |
801 | return r; | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
806 | /* Common implementation for multiple backends */ | |
e537352b | 807 | int unit_load_fragment_and_dropin_optional(Unit *u) { |
23a177ef | 808 | int r; |
87f0e418 LP |
809 | |
810 | assert(u); | |
811 | ||
23a177ef LP |
812 | /* Same as unit_load_fragment_and_dropin(), but whether |
813 | * something can be loaded or not doesn't matter. */ | |
814 | ||
815 | /* Load a .service file */ | |
e537352b | 816 | if ((r = unit_load_fragment(u)) < 0) |
87f0e418 LP |
817 | return r; |
818 | ||
ac155bb8 MS |
819 | if (u->load_state == UNIT_STUB) |
820 | u->load_state = UNIT_LOADED; | |
d46de8a1 | 821 | |
87f0e418 | 822 | /* Load drop-in directory data */ |
23a177ef | 823 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) |
87f0e418 LP |
824 | return r; |
825 | ||
23a177ef | 826 | return 0; |
87f0e418 LP |
827 | } |
828 | ||
bba34eed | 829 | int unit_add_default_target_dependency(Unit *u, Unit *target) { |
98bc2000 LP |
830 | assert(u); |
831 | assert(target); | |
832 | ||
ac155bb8 | 833 | if (target->type != UNIT_TARGET) |
98bc2000 LP |
834 | return 0; |
835 | ||
35b8ca3a | 836 | /* Only add the dependency if both units are loaded, so that |
bba34eed | 837 | * that loop check below is reliable */ |
ac155bb8 MS |
838 | if (u->load_state != UNIT_LOADED || |
839 | target->load_state != UNIT_LOADED) | |
bba34eed LP |
840 | return 0; |
841 | ||
21256a2b LP |
842 | /* If either side wants no automatic dependencies, then let's |
843 | * skip this */ | |
ac155bb8 MS |
844 | if (!u->default_dependencies || |
845 | !target->default_dependencies) | |
21256a2b LP |
846 | return 0; |
847 | ||
98bc2000 | 848 | /* Don't create loops */ |
ac155bb8 | 849 | if (set_get(target->dependencies[UNIT_BEFORE], u)) |
98bc2000 LP |
850 | return 0; |
851 | ||
852 | return unit_add_dependency(target, UNIT_AFTER, u, true); | |
853 | } | |
854 | ||
855 | static int unit_add_default_dependencies(Unit *u) { | |
21256a2b LP |
856 | static const UnitDependency deps[] = { |
857 | UNIT_REQUIRED_BY, | |
858 | UNIT_REQUIRED_BY_OVERRIDABLE, | |
859 | UNIT_WANTED_BY, | |
860 | UNIT_BOUND_BY | |
861 | }; | |
862 | ||
bba34eed | 863 | Unit *target; |
98bc2000 LP |
864 | Iterator i; |
865 | int r; | |
21256a2b | 866 | unsigned k; |
98bc2000 LP |
867 | |
868 | assert(u); | |
869 | ||
21256a2b | 870 | for (k = 0; k < ELEMENTSOF(deps); k++) |
ac155bb8 | 871 | SET_FOREACH(target, u->dependencies[deps[k]], i) |
21256a2b LP |
872 | if ((r = unit_add_default_target_dependency(u, target)) < 0) |
873 | return r; | |
b81884e7 | 874 | |
98bc2000 LP |
875 | return 0; |
876 | } | |
877 | ||
87f0e418 LP |
878 | int unit_load(Unit *u) { |
879 | int r; | |
880 | ||
881 | assert(u); | |
882 | ||
ac155bb8 MS |
883 | if (u->in_load_queue) { |
884 | LIST_REMOVE(Unit, load_queue, u->manager->load_queue, u); | |
885 | u->in_load_queue = false; | |
87f0e418 LP |
886 | } |
887 | ||
ac155bb8 | 888 | if (u->type == _UNIT_TYPE_INVALID) |
e537352b LP |
889 | return -EINVAL; |
890 | ||
ac155bb8 | 891 | if (u->load_state != UNIT_STUB) |
87f0e418 LP |
892 | return 0; |
893 | ||
e537352b LP |
894 | if (UNIT_VTABLE(u)->load) |
895 | if ((r = UNIT_VTABLE(u)->load(u)) < 0) | |
87f0e418 | 896 | goto fail; |
23a177ef | 897 | |
ac155bb8 | 898 | if (u->load_state == UNIT_STUB) { |
23a177ef LP |
899 | r = -ENOENT; |
900 | goto fail; | |
901 | } | |
902 | ||
ac155bb8 MS |
903 | if (u->load_state == UNIT_LOADED && |
904 | u->default_dependencies) | |
98bc2000 LP |
905 | if ((r = unit_add_default_dependencies(u)) < 0) |
906 | goto fail; | |
907 | ||
7c8fa05c LP |
908 | if (u->load_state == UNIT_LOADED) { |
909 | r = unit_add_mount_links(u); | |
910 | if (r < 0) | |
911 | return r; | |
912 | } | |
913 | ||
ac155bb8 MS |
914 | if (u->on_failure_isolate && |
915 | set_size(u->dependencies[UNIT_ON_FAILURE]) > 1) { | |
f68319bb | 916 | |
c1b6628d ZJS |
917 | log_error_unit(u->id, |
918 | "More than one OnFailure= dependencies specified for %s but OnFailureIsolate= enabled. Refusing.", u->id); | |
f68319bb LP |
919 | |
920 | r = -EINVAL; | |
921 | goto fail; | |
922 | } | |
923 | ||
ac155bb8 | 924 | assert((u->load_state != UNIT_MERGED) == !u->merged_into); |
23a177ef LP |
925 | |
926 | unit_add_to_dbus_queue(unit_follow_merge(u)); | |
701cc384 | 927 | unit_add_to_gc_queue(u); |
87f0e418 | 928 | |
87f0e418 LP |
929 | return 0; |
930 | ||
931 | fail: | |
ac155bb8 MS |
932 | u->load_state = UNIT_ERROR; |
933 | u->load_error = r; | |
c1e1601e | 934 | unit_add_to_dbus_queue(u); |
9a46fc3b | 935 | unit_add_to_gc_queue(u); |
23a177ef | 936 | |
c1b6628d ZJS |
937 | log_debug_unit(u->id, "Failed to load configuration for %s: %s", |
938 | u->id, strerror(-r)); | |
23a177ef | 939 | |
87f0e418 LP |
940 | return r; |
941 | } | |
942 | ||
90bbc946 LP |
943 | bool unit_condition_test(Unit *u) { |
944 | assert(u); | |
945 | ||
ac155bb8 MS |
946 | dual_timestamp_get(&u->condition_timestamp); |
947 | u->condition_result = condition_test_list(u->conditions); | |
90bbc946 | 948 | |
ac155bb8 | 949 | return u->condition_result; |
90bbc946 LP |
950 | } |
951 | ||
877d54e9 | 952 | static const char* unit_get_status_message_format(Unit *u, JobType t) { |
c6918296 | 953 | const UnitStatusMessageFormats *format_table; |
877d54e9 LP |
954 | |
955 | assert(u); | |
956 | assert(t >= 0); | |
957 | assert(t < _JOB_TYPE_MAX); | |
958 | ||
959 | if (t != JOB_START && t != JOB_STOP) | |
960 | return NULL; | |
c6918296 MS |
961 | |
962 | format_table = &UNIT_VTABLE(u)->status_message_formats; | |
963 | if (!format_table) | |
877d54e9 LP |
964 | return NULL; |
965 | ||
966 | return format_table->starting_stopping[t == JOB_STOP]; | |
967 | } | |
968 | ||
969 | static const char *unit_get_status_message_format_try_harder(Unit *u, JobType t) { | |
970 | const char *format; | |
971 | ||
972 | assert(u); | |
973 | assert(t >= 0); | |
974 | assert(t < _JOB_TYPE_MAX); | |
975 | ||
976 | format = unit_get_status_message_format(u, t); | |
977 | if (format) | |
978 | return format; | |
979 | ||
980 | /* Return generic strings */ | |
981 | if (t == JOB_START) | |
982 | return "Starting %s."; | |
983 | else if (t == JOB_STOP) | |
984 | return "Stopping %s."; | |
985 | else if (t == JOB_RELOAD) | |
986 | return "Reloading %s."; | |
987 | ||
988 | return NULL; | |
989 | } | |
990 | ||
991 | static void unit_status_print_starting_stopping(Unit *u, JobType t) { | |
992 | const char *format; | |
993 | ||
994 | assert(u); | |
995 | ||
996 | /* We only print status messages for selected units on | |
997 | * selected operations. */ | |
c6918296 | 998 | |
877d54e9 | 999 | format = unit_get_status_message_format(u, t); |
c6918296 MS |
1000 | if (!format) |
1001 | return; | |
1002 | ||
49b1d377 | 1003 | unit_status_printf(u, "", format); |
c6918296 MS |
1004 | } |
1005 | ||
877d54e9 LP |
1006 | #pragma GCC diagnostic push |
1007 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
1008 | static void unit_status_log_starting_stopping_reloading(Unit *u, JobType t) { | |
1009 | const char *format; | |
1010 | char buf[LINE_MAX]; | |
1011 | sd_id128_t mid; | |
1012 | ||
1013 | assert(u); | |
1014 | ||
1015 | if (t != JOB_START && t != JOB_STOP && t != JOB_RELOAD) | |
1016 | return; | |
1017 | ||
81270860 LP |
1018 | if (log_on_console()) |
1019 | return; | |
1020 | ||
877d54e9 LP |
1021 | /* We log status messages for all units and all operations. */ |
1022 | ||
1023 | format = unit_get_status_message_format_try_harder(u, t); | |
1024 | if (!format) | |
1025 | return; | |
1026 | ||
1027 | snprintf(buf, sizeof(buf), format, unit_description(u)); | |
1028 | char_array_0(buf); | |
1029 | ||
1030 | mid = t == JOB_START ? SD_MESSAGE_UNIT_STARTING : | |
1031 | t == JOB_STOP ? SD_MESSAGE_UNIT_STOPPING : | |
1032 | SD_MESSAGE_UNIT_RELOADING; | |
1033 | ||
bbc9006e | 1034 | log_struct_unit(LOG_INFO, |
c1b6628d ZJS |
1035 | u->id, |
1036 | MESSAGE_ID(mid), | |
1037 | "MESSAGE=%s", buf, | |
1038 | NULL); | |
877d54e9 LP |
1039 | } |
1040 | #pragma GCC diagnostic pop | |
1041 | ||
87f0e418 | 1042 | /* Errors: |
d5159713 LP |
1043 | * -EBADR: This unit type does not support starting. |
1044 | * -EALREADY: Unit is already started. | |
1045 | * -EAGAIN: An operation is already in progress. Retry later. | |
1046 | * -ECANCELED: Too many requests for now. | |
87f0e418 LP |
1047 | */ |
1048 | int unit_start(Unit *u) { | |
1049 | UnitActiveState state; | |
92ab323c | 1050 | Unit *following; |
87f0e418 LP |
1051 | |
1052 | assert(u); | |
1053 | ||
ac155bb8 | 1054 | if (u->load_state != UNIT_LOADED) |
6124958c LP |
1055 | return -EINVAL; |
1056 | ||
a82e5507 LP |
1057 | /* If this is already started, then this will succeed. Note |
1058 | * that this will even succeed if this unit is not startable | |
1059 | * by the user. This is relied on to detect when we need to | |
1060 | * wait for units and when waiting is finished. */ | |
87f0e418 LP |
1061 | state = unit_active_state(u); |
1062 | if (UNIT_IS_ACTIVE_OR_RELOADING(state)) | |
1063 | return -EALREADY; | |
1064 | ||
a82e5507 LP |
1065 | /* If the conditions failed, don't do anything at all. If we |
1066 | * already are activating this call might still be useful to | |
1067 | * speed up activation in case there is some hold-off time, | |
1068 | * but we don't want to recheck the condition in that case. */ | |
1069 | if (state != UNIT_ACTIVATING && | |
1070 | !unit_condition_test(u)) { | |
c1b6628d | 1071 | log_debug_unit(u->id, "Starting of %s requested but condition failed. Ignoring.", u->id); |
52661efd LP |
1072 | return -EALREADY; |
1073 | } | |
1074 | ||
92ab323c LP |
1075 | /* Forward to the main object, if we aren't it. */ |
1076 | if ((following = unit_following(u))) { | |
c1b6628d ZJS |
1077 | log_debug_unit(u->id, "Redirecting start request from %s to %s.", |
1078 | u->id, following->id); | |
92ab323c LP |
1079 | return unit_start(following); |
1080 | } | |
1081 | ||
877d54e9 LP |
1082 | unit_status_log_starting_stopping_reloading(u, JOB_START); |
1083 | unit_status_print_starting_stopping(u, JOB_START); | |
c6918296 | 1084 | |
92ab323c LP |
1085 | /* If it is stopped, but we cannot start it, then fail */ |
1086 | if (!UNIT_VTABLE(u)->start) | |
1087 | return -EBADR; | |
1088 | ||
87f0e418 LP |
1089 | /* We don't suppress calls to ->start() here when we are |
1090 | * already starting, to allow this request to be used as a | |
1091 | * "hurry up" call, for example when the unit is in some "auto | |
1092 | * restart" state where it waits for a holdoff timer to elapse | |
1093 | * before it will start again. */ | |
1094 | ||
c1e1601e | 1095 | unit_add_to_dbus_queue(u); |
9e58ff9c | 1096 | |
87f0e418 LP |
1097 | return UNIT_VTABLE(u)->start(u); |
1098 | } | |
1099 | ||
1100 | bool unit_can_start(Unit *u) { | |
1101 | assert(u); | |
1102 | ||
1103 | return !!UNIT_VTABLE(u)->start; | |
1104 | } | |
1105 | ||
2528a7a6 LP |
1106 | bool unit_can_isolate(Unit *u) { |
1107 | assert(u); | |
1108 | ||
1109 | return unit_can_start(u) && | |
ac155bb8 | 1110 | u->allow_isolate; |
2528a7a6 LP |
1111 | } |
1112 | ||
87f0e418 LP |
1113 | /* Errors: |
1114 | * -EBADR: This unit type does not support stopping. | |
1115 | * -EALREADY: Unit is already stopped. | |
1116 | * -EAGAIN: An operation is already in progress. Retry later. | |
1117 | */ | |
1118 | int unit_stop(Unit *u) { | |
1119 | UnitActiveState state; | |
92ab323c | 1120 | Unit *following; |
87f0e418 LP |
1121 | |
1122 | assert(u); | |
1123 | ||
87f0e418 | 1124 | state = unit_active_state(u); |
fdf20a31 | 1125 | if (UNIT_IS_INACTIVE_OR_FAILED(state)) |
87f0e418 LP |
1126 | return -EALREADY; |
1127 | ||
92ab323c | 1128 | if ((following = unit_following(u))) { |
c1b6628d ZJS |
1129 | log_debug_unit(u->id, "Redirecting stop request from %s to %s.", |
1130 | u->id, following->id); | |
92ab323c LP |
1131 | return unit_stop(following); |
1132 | } | |
1133 | ||
877d54e9 LP |
1134 | unit_status_log_starting_stopping_reloading(u, JOB_STOP); |
1135 | unit_status_print_starting_stopping(u, JOB_STOP); | |
c6918296 | 1136 | |
7898b0cf LP |
1137 | if (!UNIT_VTABLE(u)->stop) |
1138 | return -EBADR; | |
1139 | ||
c1e1601e | 1140 | unit_add_to_dbus_queue(u); |
9e58ff9c | 1141 | |
87f0e418 LP |
1142 | return UNIT_VTABLE(u)->stop(u); |
1143 | } | |
1144 | ||
1145 | /* Errors: | |
1146 | * -EBADR: This unit type does not support reloading. | |
1147 | * -ENOEXEC: Unit is not started. | |
1148 | * -EAGAIN: An operation is already in progress. Retry later. | |
1149 | */ | |
1150 | int unit_reload(Unit *u) { | |
1151 | UnitActiveState state; | |
92ab323c | 1152 | Unit *following; |
87f0e418 LP |
1153 | |
1154 | assert(u); | |
1155 | ||
ac155bb8 | 1156 | if (u->load_state != UNIT_LOADED) |
6124958c LP |
1157 | return -EINVAL; |
1158 | ||
87f0e418 LP |
1159 | if (!unit_can_reload(u)) |
1160 | return -EBADR; | |
1161 | ||
1162 | state = unit_active_state(u); | |
e364ad06 | 1163 | if (state == UNIT_RELOADING) |
87f0e418 LP |
1164 | return -EALREADY; |
1165 | ||
e364ad06 | 1166 | if (state != UNIT_ACTIVE) |
87f0e418 LP |
1167 | return -ENOEXEC; |
1168 | ||
92ab323c | 1169 | if ((following = unit_following(u))) { |
c1b6628d ZJS |
1170 | log_debug_unit(u->id, "Redirecting reload request from %s to %s.", |
1171 | u->id, following->id); | |
92ab323c LP |
1172 | return unit_reload(following); |
1173 | } | |
1174 | ||
877d54e9 LP |
1175 | unit_status_log_starting_stopping_reloading(u, JOB_RELOAD); |
1176 | ||
c1e1601e | 1177 | unit_add_to_dbus_queue(u); |
87f0e418 LP |
1178 | return UNIT_VTABLE(u)->reload(u); |
1179 | } | |
1180 | ||
1181 | bool unit_can_reload(Unit *u) { | |
1182 | assert(u); | |
1183 | ||
1184 | if (!UNIT_VTABLE(u)->reload) | |
1185 | return false; | |
1186 | ||
1187 | if (!UNIT_VTABLE(u)->can_reload) | |
1188 | return true; | |
1189 | ||
1190 | return UNIT_VTABLE(u)->can_reload(u); | |
1191 | } | |
1192 | ||
b4a16b7b | 1193 | static void unit_check_unneeded(Unit *u) { |
f3bff0eb LP |
1194 | Iterator i; |
1195 | Unit *other; | |
1196 | ||
1197 | assert(u); | |
1198 | ||
1199 | /* If this service shall be shut down when unneeded then do | |
1200 | * so. */ | |
1201 | ||
ac155bb8 | 1202 | if (!u->stop_when_unneeded) |
f3bff0eb LP |
1203 | return; |
1204 | ||
1205 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) | |
1206 | return; | |
1207 | ||
ac155bb8 | 1208 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i) |
31afa0a4 | 1209 | if (unit_active_or_pending(other)) |
f3bff0eb LP |
1210 | return; |
1211 | ||
ac155bb8 | 1212 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) |
31afa0a4 | 1213 | if (unit_active_or_pending(other)) |
f3bff0eb LP |
1214 | return; |
1215 | ||
ac155bb8 | 1216 | SET_FOREACH(other, u->dependencies[UNIT_WANTED_BY], i) |
31afa0a4 | 1217 | if (unit_active_or_pending(other)) |
f3bff0eb LP |
1218 | return; |
1219 | ||
ac155bb8 | 1220 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
31afa0a4 | 1221 | if (unit_active_or_pending(other)) |
b81884e7 LP |
1222 | return; |
1223 | ||
c1b6628d | 1224 | log_info_unit(u->id, "Service %s is not needed anymore. Stopping.", u->id); |
f3bff0eb LP |
1225 | |
1226 | /* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */ | |
ac155bb8 | 1227 | manager_add_job(u->manager, JOB_STOP, u, JOB_FAIL, true, NULL, NULL); |
f3bff0eb LP |
1228 | } |
1229 | ||
87f0e418 LP |
1230 | static void retroactively_start_dependencies(Unit *u) { |
1231 | Iterator i; | |
1232 | Unit *other; | |
1233 | ||
1234 | assert(u); | |
1235 | assert(UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))); | |
1236 | ||
ac155bb8 MS |
1237 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES], i) |
1238 | if (!set_get(u->dependencies[UNIT_AFTER], other) && | |
b81884e7 | 1239 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1240 | manager_add_job(u->manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL); |
b81884e7 | 1241 | |
7f2cddae | 1242 | SET_FOREACH(other, u->dependencies[UNIT_BINDS_TO], i) |
ac155bb8 | 1243 | if (!set_get(u->dependencies[UNIT_AFTER], other) && |
b81884e7 | 1244 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1245 | manager_add_job(u->manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL); |
87f0e418 | 1246 | |
ac155bb8 MS |
1247 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) |
1248 | if (!set_get(u->dependencies[UNIT_AFTER], other) && | |
b81884e7 | 1249 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1250 | manager_add_job(u->manager, JOB_START, other, JOB_FAIL, false, NULL, NULL); |
87f0e418 | 1251 | |
ac155bb8 MS |
1252 | SET_FOREACH(other, u->dependencies[UNIT_WANTS], i) |
1253 | if (!set_get(u->dependencies[UNIT_AFTER], other) && | |
b81884e7 | 1254 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1255 | manager_add_job(u->manager, JOB_START, other, JOB_FAIL, false, NULL, NULL); |
87f0e418 | 1256 | |
ac155bb8 | 1257 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTS], i) |
b81884e7 | 1258 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
ac155bb8 | 1259 | manager_add_job(u->manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL); |
69dd2852 | 1260 | |
ac155bb8 | 1261 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i) |
b81884e7 | 1262 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
ac155bb8 | 1263 | manager_add_job(u->manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL); |
87f0e418 LP |
1264 | } |
1265 | ||
1266 | static void retroactively_stop_dependencies(Unit *u) { | |
1267 | Iterator i; | |
1268 | Unit *other; | |
1269 | ||
1270 | assert(u); | |
1271 | assert(UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u))); | |
1272 | ||
b81884e7 | 1273 | /* Pull down units which are bound to us recursively if enabled */ |
ac155bb8 | 1274 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
b81884e7 | 1275 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
ac155bb8 | 1276 | manager_add_job(u->manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL); |
cd0504d0 MS |
1277 | } |
1278 | ||
1279 | static void check_unneeded_dependencies(Unit *u) { | |
1280 | Iterator i; | |
1281 | Unit *other; | |
1282 | ||
1283 | assert(u); | |
1284 | assert(UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u))); | |
f3bff0eb LP |
1285 | |
1286 | /* Garbage collect services that might not be needed anymore, if enabled */ | |
ac155bb8 | 1287 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES], i) |
87f0e418 | 1288 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1289 | unit_check_unneeded(other); |
ac155bb8 | 1290 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) |
f3bff0eb | 1291 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1292 | unit_check_unneeded(other); |
ac155bb8 | 1293 | SET_FOREACH(other, u->dependencies[UNIT_WANTS], i) |
f3bff0eb | 1294 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1295 | unit_check_unneeded(other); |
ac155bb8 | 1296 | SET_FOREACH(other, u->dependencies[UNIT_REQUISITE], i) |
f3bff0eb | 1297 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1298 | unit_check_unneeded(other); |
ac155bb8 | 1299 | SET_FOREACH(other, u->dependencies[UNIT_REQUISITE_OVERRIDABLE], i) |
f3bff0eb | 1300 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1301 | unit_check_unneeded(other); |
7f2cddae | 1302 | SET_FOREACH(other, u->dependencies[UNIT_BINDS_TO], i) |
b81884e7 LP |
1303 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
1304 | unit_check_unneeded(other); | |
87f0e418 LP |
1305 | } |
1306 | ||
3ecaa09b | 1307 | void unit_start_on_failure(Unit *u) { |
c0daa706 LP |
1308 | Unit *other; |
1309 | Iterator i; | |
1310 | ||
1311 | assert(u); | |
1312 | ||
ac155bb8 | 1313 | if (set_size(u->dependencies[UNIT_ON_FAILURE]) <= 0) |
222ae6a8 LP |
1314 | return; |
1315 | ||
c1b6628d | 1316 | log_info_unit(u->id, "Triggering OnFailure= dependencies of %s.", u->id); |
222ae6a8 | 1317 | |
ac155bb8 | 1318 | SET_FOREACH(other, u->dependencies[UNIT_ON_FAILURE], i) { |
222ae6a8 LP |
1319 | int r; |
1320 | ||
c1b6628d ZJS |
1321 | r = manager_add_job(u->manager, JOB_START, other, u->on_failure_isolate ? JOB_ISOLATE : JOB_REPLACE, true, NULL, NULL); |
1322 | if (r < 0) | |
1323 | log_error_unit(u->id, "Failed to enqueue OnFailure= job: %s", strerror(-r)); | |
222ae6a8 | 1324 | } |
c0daa706 LP |
1325 | } |
1326 | ||
3ecaa09b LP |
1327 | void unit_trigger_notify(Unit *u) { |
1328 | Unit *other; | |
1329 | Iterator i; | |
1330 | ||
1331 | assert(u); | |
1332 | ||
1333 | SET_FOREACH(other, u->dependencies[UNIT_TRIGGERED_BY], i) | |
1334 | if (UNIT_VTABLE(other)->trigger_notify) | |
1335 | UNIT_VTABLE(other)->trigger_notify(other, u); | |
1336 | } | |
1337 | ||
e2f3b44c | 1338 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success) { |
546ac4f0 | 1339 | Manager *m; |
7e6e7b06 | 1340 | bool unexpected; |
a096ed36 | 1341 | |
87f0e418 LP |
1342 | assert(u); |
1343 | assert(os < _UNIT_ACTIVE_STATE_MAX); | |
1344 | assert(ns < _UNIT_ACTIVE_STATE_MAX); | |
87f0e418 | 1345 | |
8e471ccd LP |
1346 | /* Note that this is called for all low-level state changes, |
1347 | * even if they might map to the same high-level | |
1348 | * UnitActiveState! That means that ns == os is OK an expected | |
c5315881 | 1349 | * behavior here. For example: if a mount point is remounted |
cd6d0a45 | 1350 | * this function will be called too! */ |
87f0e418 | 1351 | |
546ac4f0 MS |
1352 | m = u->manager; |
1353 | ||
1354 | if (m->n_reloading <= 0) { | |
bdbf9951 | 1355 | dual_timestamp ts; |
173e3821 | 1356 | |
bdbf9951 | 1357 | dual_timestamp_get(&ts); |
173e3821 | 1358 | |
bdbf9951 | 1359 | if (UNIT_IS_INACTIVE_OR_FAILED(os) && !UNIT_IS_INACTIVE_OR_FAILED(ns)) |
ac155bb8 | 1360 | u->inactive_exit_timestamp = ts; |
bdbf9951 | 1361 | else if (!UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_INACTIVE_OR_FAILED(ns)) |
ac155bb8 | 1362 | u->inactive_enter_timestamp = ts; |
bdbf9951 LP |
1363 | |
1364 | if (!UNIT_IS_ACTIVE_OR_RELOADING(os) && UNIT_IS_ACTIVE_OR_RELOADING(ns)) | |
ac155bb8 | 1365 | u->active_enter_timestamp = ts; |
bdbf9951 | 1366 | else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns)) |
ac155bb8 | 1367 | u->active_exit_timestamp = ts; |
bdbf9951 | 1368 | } |
87f0e418 | 1369 | |
fdf20a31 | 1370 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
ac155bb8 | 1371 | cgroup_bonding_trim_list(u->cgroup_bondings, true); |
fb385181 | 1372 | |
7ed9f6cd MS |
1373 | if (UNIT_IS_INACTIVE_OR_FAILED(os) != UNIT_IS_INACTIVE_OR_FAILED(ns)) { |
1374 | ExecContext *ec = unit_get_exec_context(u); | |
1375 | if (ec && exec_context_may_touch_console(ec)) { | |
7ed9f6cd MS |
1376 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
1377 | m->n_on_console--; | |
1378 | else | |
1379 | m->n_on_console++; | |
1380 | } | |
1381 | } | |
1382 | ||
ac155bb8 | 1383 | if (u->job) { |
7e6e7b06 | 1384 | unexpected = false; |
87f0e418 | 1385 | |
ac155bb8 | 1386 | if (u->job->state == JOB_WAITING) |
87f0e418 LP |
1387 | |
1388 | /* So we reached a different state for this | |
1389 | * job. Let's see if we can run it now if it | |
1390 | * failed previously due to EAGAIN. */ | |
ac155bb8 | 1391 | job_add_to_run_queue(u->job); |
87f0e418 | 1392 | |
b410e6b9 | 1393 | /* Let's check whether this state change constitutes a |
35b8ca3a | 1394 | * finished job, or maybe contradicts a running job and |
b410e6b9 | 1395 | * hence needs to invalidate jobs. */ |
87f0e418 | 1396 | |
ac155bb8 | 1397 | switch (u->job->type) { |
87f0e418 | 1398 | |
b410e6b9 LP |
1399 | case JOB_START: |
1400 | case JOB_VERIFY_ACTIVE: | |
87f0e418 | 1401 | |
b410e6b9 | 1402 | if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) |
5273510e | 1403 | job_finish_and_invalidate(u->job, JOB_DONE, true); |
ac155bb8 | 1404 | else if (u->job->state == JOB_RUNNING && ns != UNIT_ACTIVATING) { |
b410e6b9 | 1405 | unexpected = true; |
41b02ec7 | 1406 | |
fdf20a31 | 1407 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
5273510e | 1408 | job_finish_and_invalidate(u->job, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE, true); |
b410e6b9 | 1409 | } |
87f0e418 | 1410 | |
b410e6b9 | 1411 | break; |
87f0e418 | 1412 | |
b410e6b9 LP |
1413 | case JOB_RELOAD: |
1414 | case JOB_RELOAD_OR_START: | |
87f0e418 | 1415 | |
ac155bb8 | 1416 | if (u->job->state == JOB_RUNNING) { |
a096ed36 | 1417 | if (ns == UNIT_ACTIVE) |
5273510e | 1418 | job_finish_and_invalidate(u->job, reload_success ? JOB_DONE : JOB_FAILED, true); |
032ff4af | 1419 | else if (ns != UNIT_ACTIVATING && ns != UNIT_RELOADING) { |
a096ed36 | 1420 | unexpected = true; |
41b02ec7 | 1421 | |
fdf20a31 | 1422 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
5273510e | 1423 | job_finish_and_invalidate(u->job, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE, true); |
a096ed36 | 1424 | } |
b410e6b9 | 1425 | } |
87f0e418 | 1426 | |
b410e6b9 | 1427 | break; |
87f0e418 | 1428 | |
b410e6b9 LP |
1429 | case JOB_STOP: |
1430 | case JOB_RESTART: | |
1431 | case JOB_TRY_RESTART: | |
87f0e418 | 1432 | |
fdf20a31 | 1433 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
5273510e | 1434 | job_finish_and_invalidate(u->job, JOB_DONE, true); |
ac155bb8 | 1435 | else if (u->job->state == JOB_RUNNING && ns != UNIT_DEACTIVATING) { |
b410e6b9 | 1436 | unexpected = true; |
5273510e | 1437 | job_finish_and_invalidate(u->job, JOB_FAILED, true); |
b410e6b9 | 1438 | } |
87f0e418 | 1439 | |
b410e6b9 | 1440 | break; |
87f0e418 | 1441 | |
b410e6b9 LP |
1442 | default: |
1443 | assert_not_reached("Job type unknown"); | |
87f0e418 | 1444 | } |
87f0e418 | 1445 | |
7e6e7b06 LP |
1446 | } else |
1447 | unexpected = true; | |
1448 | ||
546ac4f0 | 1449 | if (m->n_reloading <= 0) { |
f3bff0eb | 1450 | |
bdbf9951 LP |
1451 | /* If this state change happened without being |
1452 | * requested by a job, then let's retroactively start | |
1453 | * or stop dependencies. We skip that step when | |
1454 | * deserializing, since we don't want to create any | |
1455 | * additional jobs just because something is already | |
1456 | * activated. */ | |
1457 | ||
1458 | if (unexpected) { | |
1459 | if (UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns)) | |
1460 | retroactively_start_dependencies(u); | |
1461 | else if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns)) | |
1462 | retroactively_stop_dependencies(u); | |
1463 | } | |
5de9682c | 1464 | |
cd0504d0 MS |
1465 | /* stop unneeded units regardless if going down was expected or not */ |
1466 | if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns)) | |
1467 | check_unneeded_dependencies(u); | |
1468 | ||
bdbf9951 | 1469 | if (ns != os && ns == UNIT_FAILED) { |
c1b6628d ZJS |
1470 | log_notice_unit(u->id, |
1471 | "MESSAGE=Unit %s entered failed state.", u->id); | |
3ecaa09b | 1472 | unit_start_on_failure(u); |
cd6d0a45 | 1473 | } |
3b2775c5 | 1474 | } |
e537352b | 1475 | |
3b2775c5 LP |
1476 | /* Some names are special */ |
1477 | if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) { | |
1478 | ||
1479 | if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) | |
1480 | /* The bus just might have become available, | |
1481 | * hence try to connect to it, if we aren't | |
1482 | * yet connected. */ | |
546ac4f0 | 1483 | bus_init(m, true); |
3b2775c5 | 1484 | |
ac155bb8 | 1485 | if (u->type == UNIT_SERVICE && |
3b2775c5 | 1486 | !UNIT_IS_ACTIVE_OR_RELOADING(os) && |
546ac4f0 | 1487 | m->n_reloading <= 0) { |
3b2775c5 | 1488 | /* Write audit record if we have just finished starting up */ |
546ac4f0 | 1489 | manager_send_unit_audit(m, u, AUDIT_SERVICE_START, true); |
ac155bb8 | 1490 | u->in_audit = true; |
3b2775c5 | 1491 | } |
e983b760 | 1492 | |
3b2775c5 | 1493 | if (!UNIT_IS_ACTIVE_OR_RELOADING(os)) |
546ac4f0 | 1494 | manager_send_unit_plymouth(m, u); |
bdbf9951 | 1495 | |
3b2775c5 | 1496 | } else { |
bdbf9951 | 1497 | |
3b2775c5 LP |
1498 | /* We don't care about D-Bus here, since we'll get an |
1499 | * asynchronous notification for it anyway. */ | |
cd6d0a45 | 1500 | |
ac155bb8 | 1501 | if (u->type == UNIT_SERVICE && |
3b2775c5 LP |
1502 | UNIT_IS_INACTIVE_OR_FAILED(ns) && |
1503 | !UNIT_IS_INACTIVE_OR_FAILED(os) && | |
546ac4f0 | 1504 | m->n_reloading <= 0) { |
4927fcae | 1505 | |
3b2775c5 LP |
1506 | /* Hmm, if there was no start record written |
1507 | * write it now, so that we always have a nice | |
1508 | * pair */ | |
ac155bb8 | 1509 | if (!u->in_audit) { |
546ac4f0 | 1510 | manager_send_unit_audit(m, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE); |
cd6d0a45 | 1511 | |
3b2775c5 | 1512 | if (ns == UNIT_INACTIVE) |
546ac4f0 | 1513 | manager_send_unit_audit(m, u, AUDIT_SERVICE_STOP, true); |
3b2775c5 LP |
1514 | } else |
1515 | /* Write audit record if we have just finished shutting down */ | |
546ac4f0 | 1516 | manager_send_unit_audit(m, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE); |
bdbf9951 | 1517 | |
ac155bb8 | 1518 | u->in_audit = false; |
cd6d0a45 | 1519 | } |
f278026d LP |
1520 | } |
1521 | ||
546ac4f0 | 1522 | manager_recheck_journal(m); |
3ecaa09b | 1523 | unit_trigger_notify(u); |
3b2775c5 | 1524 | |
f3bff0eb LP |
1525 | /* Maybe we finished startup and are now ready for being |
1526 | * stopped because unneeded? */ | |
bf6dcfa6 OS |
1527 | if (u->manager->n_reloading <= 0) |
1528 | unit_check_unneeded(u); | |
c1e1601e LP |
1529 | |
1530 | unit_add_to_dbus_queue(u); | |
701cc384 | 1531 | unit_add_to_gc_queue(u); |
87f0e418 LP |
1532 | } |
1533 | ||
acbb0225 | 1534 | int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w) { |
b92bea5d ZJS |
1535 | struct epoll_event ev = { |
1536 | .data.ptr = w, | |
1537 | .events = events, | |
1538 | }; | |
87f0e418 LP |
1539 | |
1540 | assert(u); | |
1541 | assert(fd >= 0); | |
acbb0225 | 1542 | assert(w); |
ea430986 | 1543 | assert(w->type == WATCH_INVALID || (w->type == WATCH_FD && w->fd == fd && w->data.unit == u)); |
87f0e418 | 1544 | |
ac155bb8 | 1545 | if (epoll_ctl(u->manager->epoll_fd, |
acbb0225 LP |
1546 | w->type == WATCH_INVALID ? EPOLL_CTL_ADD : EPOLL_CTL_MOD, |
1547 | fd, | |
1548 | &ev) < 0) | |
1549 | return -errno; | |
87f0e418 | 1550 | |
acbb0225 LP |
1551 | w->fd = fd; |
1552 | w->type = WATCH_FD; | |
ea430986 | 1553 | w->data.unit = u; |
87f0e418 | 1554 | |
acbb0225 | 1555 | return 0; |
87f0e418 LP |
1556 | } |
1557 | ||
acbb0225 | 1558 | void unit_unwatch_fd(Unit *u, Watch *w) { |
87f0e418 | 1559 | assert(u); |
acbb0225 | 1560 | assert(w); |
87f0e418 | 1561 | |
acbb0225 LP |
1562 | if (w->type == WATCH_INVALID) |
1563 | return; | |
1564 | ||
ea430986 LP |
1565 | assert(w->type == WATCH_FD); |
1566 | assert(w->data.unit == u); | |
ac155bb8 | 1567 | assert_se(epoll_ctl(u->manager->epoll_fd, EPOLL_CTL_DEL, w->fd, NULL) >= 0); |
acbb0225 LP |
1568 | |
1569 | w->fd = -1; | |
1570 | w->type = WATCH_INVALID; | |
ea430986 | 1571 | w->data.unit = NULL; |
87f0e418 LP |
1572 | } |
1573 | ||
1574 | int unit_watch_pid(Unit *u, pid_t pid) { | |
1575 | assert(u); | |
1576 | assert(pid >= 1); | |
1577 | ||
05e343b7 LP |
1578 | /* Watch a specific PID. We only support one unit watching |
1579 | * each PID for now. */ | |
1580 | ||
ac155bb8 | 1581 | return hashmap_put(u->manager->watch_pids, LONG_TO_PTR(pid), u); |
87f0e418 LP |
1582 | } |
1583 | ||
1584 | void unit_unwatch_pid(Unit *u, pid_t pid) { | |
1585 | assert(u); | |
1586 | assert(pid >= 1); | |
1587 | ||
ac155bb8 | 1588 | hashmap_remove_value(u->manager->watch_pids, LONG_TO_PTR(pid), u); |
87f0e418 LP |
1589 | } |
1590 | ||
36697dc0 | 1591 | int unit_watch_timer(Unit *u, clockid_t clock_id, bool relative, usec_t usec, Watch *w) { |
b92bea5d | 1592 | struct itimerspec its = {}; |
acbb0225 | 1593 | int flags, fd; |
87f0e418 LP |
1594 | bool ours; |
1595 | ||
1596 | assert(u); | |
acbb0225 | 1597 | assert(w); |
faf919f1 | 1598 | assert(w->type == WATCH_INVALID || (w->type == WATCH_UNIT_TIMER && w->data.unit == u)); |
87f0e418 LP |
1599 | |
1600 | /* This will try to reuse the old timer if there is one */ | |
1601 | ||
faf919f1 LP |
1602 | if (w->type == WATCH_UNIT_TIMER) { |
1603 | assert(w->data.unit == u); | |
1604 | assert(w->fd >= 0); | |
1605 | ||
87f0e418 | 1606 | ours = false; |
acbb0225 | 1607 | fd = w->fd; |
faf919f1 LP |
1608 | } else if (w->type == WATCH_INVALID) { |
1609 | ||
87f0e418 | 1610 | ours = true; |
36697dc0 | 1611 | fd = timerfd_create(clock_id, TFD_NONBLOCK|TFD_CLOEXEC); |
68b29a9f | 1612 | if (fd < 0) |
87f0e418 | 1613 | return -errno; |
faf919f1 LP |
1614 | } else |
1615 | assert_not_reached("Invalid watch type"); | |
87f0e418 | 1616 | |
36697dc0 | 1617 | if (usec <= 0) { |
87f0e418 LP |
1618 | /* Set absolute time in the past, but not 0, since we |
1619 | * don't want to disarm the timer */ | |
1620 | its.it_value.tv_sec = 0; | |
1621 | its.it_value.tv_nsec = 1; | |
1622 | ||
1623 | flags = TFD_TIMER_ABSTIME; | |
1624 | } else { | |
36697dc0 LP |
1625 | timespec_store(&its.it_value, usec); |
1626 | flags = relative ? 0 : TFD_TIMER_ABSTIME; | |
87f0e418 LP |
1627 | } |
1628 | ||
1629 | /* This will also flush the elapse counter */ | |
1630 | if (timerfd_settime(fd, flags, &its, NULL) < 0) | |
1631 | goto fail; | |
1632 | ||
acbb0225 | 1633 | if (w->type == WATCH_INVALID) { |
b92bea5d ZJS |
1634 | struct epoll_event ev = { |
1635 | .data.ptr = w, | |
1636 | .events = EPOLLIN, | |
1637 | }; | |
acbb0225 | 1638 | |
ac155bb8 | 1639 | if (epoll_ctl(u->manager->epoll_fd, EPOLL_CTL_ADD, fd, &ev) < 0) |
acbb0225 LP |
1640 | goto fail; |
1641 | } | |
1642 | ||
faf919f1 | 1643 | w->type = WATCH_UNIT_TIMER; |
acbb0225 | 1644 | w->fd = fd; |
ea430986 | 1645 | w->data.unit = u; |
87f0e418 | 1646 | |
87f0e418 LP |
1647 | return 0; |
1648 | ||
1649 | fail: | |
1650 | if (ours) | |
ea430986 | 1651 | close_nointr_nofail(fd); |
87f0e418 LP |
1652 | |
1653 | return -errno; | |
1654 | } | |
1655 | ||
acbb0225 | 1656 | void unit_unwatch_timer(Unit *u, Watch *w) { |
87f0e418 | 1657 | assert(u); |
acbb0225 | 1658 | assert(w); |
87f0e418 | 1659 | |
acbb0225 | 1660 | if (w->type == WATCH_INVALID) |
87f0e418 LP |
1661 | return; |
1662 | ||
faf919f1 LP |
1663 | assert(w->type == WATCH_UNIT_TIMER); |
1664 | assert(w->data.unit == u); | |
1665 | assert(w->fd >= 0); | |
acbb0225 | 1666 | |
ac155bb8 | 1667 | assert_se(epoll_ctl(u->manager->epoll_fd, EPOLL_CTL_DEL, w->fd, NULL) >= 0); |
a16e1123 | 1668 | close_nointr_nofail(w->fd); |
acbb0225 LP |
1669 | |
1670 | w->fd = -1; | |
1671 | w->type = WATCH_INVALID; | |
ea430986 | 1672 | w->data.unit = NULL; |
87f0e418 LP |
1673 | } |
1674 | ||
1675 | bool unit_job_is_applicable(Unit *u, JobType j) { | |
1676 | assert(u); | |
1677 | assert(j >= 0 && j < _JOB_TYPE_MAX); | |
1678 | ||
1679 | switch (j) { | |
1680 | ||
1681 | case JOB_VERIFY_ACTIVE: | |
1682 | case JOB_START: | |
57339f47 | 1683 | case JOB_STOP: |
e0209d83 | 1684 | case JOB_NOP: |
87f0e418 LP |
1685 | return true; |
1686 | ||
87f0e418 LP |
1687 | case JOB_RESTART: |
1688 | case JOB_TRY_RESTART: | |
1689 | return unit_can_start(u); | |
1690 | ||
1691 | case JOB_RELOAD: | |
1692 | return unit_can_reload(u); | |
1693 | ||
1694 | case JOB_RELOAD_OR_START: | |
1695 | return unit_can_reload(u) && unit_can_start(u); | |
1696 | ||
1697 | default: | |
1698 | assert_not_reached("Invalid job type"); | |
1699 | } | |
1700 | } | |
1701 | ||
701cc384 | 1702 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference) { |
87f0e418 LP |
1703 | |
1704 | static const UnitDependency inverse_table[_UNIT_DEPENDENCY_MAX] = { | |
1705 | [UNIT_REQUIRES] = UNIT_REQUIRED_BY, | |
9e2f7c11 | 1706 | [UNIT_REQUIRES_OVERRIDABLE] = UNIT_REQUIRED_BY_OVERRIDABLE, |
87f0e418 LP |
1707 | [UNIT_WANTS] = UNIT_WANTED_BY, |
1708 | [UNIT_REQUISITE] = UNIT_REQUIRED_BY, | |
9e2f7c11 | 1709 | [UNIT_REQUISITE_OVERRIDABLE] = UNIT_REQUIRED_BY_OVERRIDABLE, |
7f2cddae | 1710 | [UNIT_BINDS_TO] = UNIT_BOUND_BY, |
60649f17 | 1711 | [UNIT_PART_OF] = UNIT_CONSISTS_OF, |
87f0e418 | 1712 | [UNIT_REQUIRED_BY] = _UNIT_DEPENDENCY_INVALID, |
9e2f7c11 | 1713 | [UNIT_REQUIRED_BY_OVERRIDABLE] = _UNIT_DEPENDENCY_INVALID, |
87f0e418 | 1714 | [UNIT_WANTED_BY] = _UNIT_DEPENDENCY_INVALID, |
7f2cddae | 1715 | [UNIT_BOUND_BY] = UNIT_BINDS_TO, |
60649f17 | 1716 | [UNIT_CONSISTS_OF] = UNIT_PART_OF, |
69dd2852 LP |
1717 | [UNIT_CONFLICTS] = UNIT_CONFLICTED_BY, |
1718 | [UNIT_CONFLICTED_BY] = UNIT_CONFLICTS, | |
87f0e418 | 1719 | [UNIT_BEFORE] = UNIT_AFTER, |
701cc384 | 1720 | [UNIT_AFTER] = UNIT_BEFORE, |
5de9682c | 1721 | [UNIT_ON_FAILURE] = _UNIT_DEPENDENCY_INVALID, |
701cc384 | 1722 | [UNIT_REFERENCES] = UNIT_REFERENCED_BY, |
57020a3a LP |
1723 | [UNIT_REFERENCED_BY] = UNIT_REFERENCES, |
1724 | [UNIT_TRIGGERS] = UNIT_TRIGGERED_BY, | |
4dcc1cb4 | 1725 | [UNIT_TRIGGERED_BY] = UNIT_TRIGGERS, |
7f2cddae | 1726 | [UNIT_PROPAGATES_RELOAD_TO] = UNIT_RELOAD_PROPAGATED_FROM, |
85e9a101 | 1727 | [UNIT_RELOAD_PROPAGATED_FROM] = UNIT_PROPAGATES_RELOAD_TO, |
87f0e418 | 1728 | }; |
701cc384 | 1729 | int r, q = 0, v = 0, w = 0; |
87f0e418 LP |
1730 | |
1731 | assert(u); | |
1732 | assert(d >= 0 && d < _UNIT_DEPENDENCY_MAX); | |
87f0e418 LP |
1733 | assert(other); |
1734 | ||
9f151f29 LP |
1735 | u = unit_follow_merge(u); |
1736 | other = unit_follow_merge(other); | |
1737 | ||
87f0e418 LP |
1738 | /* We won't allow dependencies on ourselves. We will not |
1739 | * consider them an error however. */ | |
1740 | if (u == other) | |
1741 | return 0; | |
1742 | ||
ac155bb8 | 1743 | if ((r = set_ensure_allocated(&u->dependencies[d], trivial_hash_func, trivial_compare_func)) < 0) |
87f0e418 LP |
1744 | return r; |
1745 | ||
5de9682c | 1746 | if (inverse_table[d] != _UNIT_DEPENDENCY_INVALID) |
ac155bb8 | 1747 | if ((r = set_ensure_allocated(&other->dependencies[inverse_table[d]], trivial_hash_func, trivial_compare_func)) < 0) |
5de9682c LP |
1748 | return r; |
1749 | ||
701cc384 | 1750 | if (add_reference) |
ac155bb8 MS |
1751 | if ((r = set_ensure_allocated(&u->dependencies[UNIT_REFERENCES], trivial_hash_func, trivial_compare_func)) < 0 || |
1752 | (r = set_ensure_allocated(&other->dependencies[UNIT_REFERENCED_BY], trivial_hash_func, trivial_compare_func)) < 0) | |
701cc384 | 1753 | return r; |
87f0e418 | 1754 | |
ac155bb8 | 1755 | if ((q = set_put(u->dependencies[d], other)) < 0) |
701cc384 | 1756 | return q; |
87f0e418 | 1757 | |
5de9682c | 1758 | if (inverse_table[d] != _UNIT_DEPENDENCY_INVALID) |
ac155bb8 | 1759 | if ((v = set_put(other->dependencies[inverse_table[d]], u)) < 0) { |
5de9682c LP |
1760 | r = v; |
1761 | goto fail; | |
1762 | } | |
701cc384 LP |
1763 | |
1764 | if (add_reference) { | |
ac155bb8 | 1765 | if ((w = set_put(u->dependencies[UNIT_REFERENCES], other)) < 0) { |
701cc384 LP |
1766 | r = w; |
1767 | goto fail; | |
1768 | } | |
1769 | ||
ac155bb8 | 1770 | if ((r = set_put(other->dependencies[UNIT_REFERENCED_BY], u)) < 0) |
701cc384 | 1771 | goto fail; |
87f0e418 LP |
1772 | } |
1773 | ||
c1e1601e | 1774 | unit_add_to_dbus_queue(u); |
87f0e418 | 1775 | return 0; |
701cc384 LP |
1776 | |
1777 | fail: | |
1778 | if (q > 0) | |
ac155bb8 | 1779 | set_remove(u->dependencies[d], other); |
701cc384 LP |
1780 | |
1781 | if (v > 0) | |
ac155bb8 | 1782 | set_remove(other->dependencies[inverse_table[d]], u); |
701cc384 LP |
1783 | |
1784 | if (w > 0) | |
ac155bb8 | 1785 | set_remove(u->dependencies[UNIT_REFERENCES], other); |
701cc384 LP |
1786 | |
1787 | return r; | |
87f0e418 | 1788 | } |
0301abf4 | 1789 | |
2c966c03 LP |
1790 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference) { |
1791 | int r; | |
1792 | ||
1793 | assert(u); | |
1794 | ||
1795 | if ((r = unit_add_dependency(u, d, other, add_reference)) < 0) | |
1796 | return r; | |
1797 | ||
1798 | if ((r = unit_add_dependency(u, e, other, add_reference)) < 0) | |
1799 | return r; | |
1800 | ||
1801 | return 0; | |
1802 | } | |
1803 | ||
9e2f7c11 LP |
1804 | static const char *resolve_template(Unit *u, const char *name, const char*path, char **p) { |
1805 | char *s; | |
1806 | ||
1807 | assert(u); | |
1808 | assert(name || path); | |
8afbb8e1 | 1809 | assert(p); |
9e2f7c11 LP |
1810 | |
1811 | if (!name) | |
9eb977db | 1812 | name = path_get_file_name(path); |
9e2f7c11 LP |
1813 | |
1814 | if (!unit_name_is_template(name)) { | |
1815 | *p = NULL; | |
1816 | return name; | |
1817 | } | |
1818 | ||
ac155bb8 MS |
1819 | if (u->instance) |
1820 | s = unit_name_replace_instance(name, u->instance); | |
9e2f7c11 | 1821 | else { |
ae018d9b | 1822 | _cleanup_free_ char *i = NULL; |
9e2f7c11 | 1823 | |
8afbb8e1 LP |
1824 | i = unit_name_to_prefix(u->id); |
1825 | if (!i) | |
9e2f7c11 LP |
1826 | return NULL; |
1827 | ||
1828 | s = unit_name_replace_instance(name, i); | |
9e2f7c11 LP |
1829 | } |
1830 | ||
1831 | if (!s) | |
1832 | return NULL; | |
1833 | ||
1834 | *p = s; | |
1835 | return s; | |
1836 | } | |
1837 | ||
701cc384 | 1838 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *path, bool add_reference) { |
09b6b09f LP |
1839 | Unit *other; |
1840 | int r; | |
8afbb8e1 | 1841 | _cleanup_free_ char *s = NULL; |
09b6b09f | 1842 | |
9e2f7c11 LP |
1843 | assert(u); |
1844 | assert(name || path); | |
09b6b09f | 1845 | |
8afbb8e1 LP |
1846 | name = resolve_template(u, name, path, &s); |
1847 | if (!name) | |
9e2f7c11 | 1848 | return -ENOMEM; |
09b6b09f | 1849 | |
8afbb8e1 LP |
1850 | r = manager_load_unit(u->manager, name, path, NULL, &other); |
1851 | if (r < 0) | |
1852 | return r; | |
9e2f7c11 | 1853 | |
8afbb8e1 | 1854 | return unit_add_dependency(u, d, other, add_reference); |
09b6b09f LP |
1855 | } |
1856 | ||
2c966c03 LP |
1857 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) { |
1858 | Unit *other; | |
1859 | int r; | |
1860 | char *s; | |
1861 | ||
1862 | assert(u); | |
1863 | assert(name || path); | |
1864 | ||
1865 | if (!(name = resolve_template(u, name, path, &s))) | |
1866 | return -ENOMEM; | |
1867 | ||
ac155bb8 | 1868 | if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) |
2c966c03 LP |
1869 | goto finish; |
1870 | ||
1871 | r = unit_add_two_dependencies(u, d, e, other, add_reference); | |
1872 | ||
1873 | finish: | |
1874 | free(s); | |
1875 | return r; | |
1876 | } | |
1877 | ||
701cc384 | 1878 | int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *path, bool add_reference) { |
bd77d0fc LP |
1879 | Unit *other; |
1880 | int r; | |
9e2f7c11 | 1881 | char *s; |
bd77d0fc | 1882 | |
9e2f7c11 LP |
1883 | assert(u); |
1884 | assert(name || path); | |
bd77d0fc | 1885 | |
9e2f7c11 LP |
1886 | if (!(name = resolve_template(u, name, path, &s))) |
1887 | return -ENOMEM; | |
bd77d0fc | 1888 | |
ac155bb8 | 1889 | if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) |
9e2f7c11 LP |
1890 | goto finish; |
1891 | ||
701cc384 | 1892 | r = unit_add_dependency(other, d, u, add_reference); |
9e2f7c11 LP |
1893 | |
1894 | finish: | |
1895 | free(s); | |
1896 | return r; | |
bd77d0fc LP |
1897 | } |
1898 | ||
2c966c03 LP |
1899 | int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) { |
1900 | Unit *other; | |
1901 | int r; | |
1902 | char *s; | |
1903 | ||
1904 | assert(u); | |
1905 | assert(name || path); | |
1906 | ||
1907 | if (!(name = resolve_template(u, name, path, &s))) | |
1908 | return -ENOMEM; | |
1909 | ||
ac155bb8 | 1910 | if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) |
2c966c03 LP |
1911 | goto finish; |
1912 | ||
1913 | if ((r = unit_add_two_dependencies(other, d, e, u, add_reference)) < 0) | |
1914 | goto finish; | |
1915 | ||
1916 | finish: | |
1917 | free(s); | |
1918 | return r; | |
1919 | } | |
1920 | ||
0301abf4 | 1921 | int set_unit_path(const char *p) { |
26d04f86 | 1922 | _cleanup_free_ char *c = NULL; |
0301abf4 LP |
1923 | |
1924 | /* This is mostly for debug purposes */ | |
26d04f86 LP |
1925 | c = path_make_absolute_cwd(p); |
1926 | if (setenv("SYSTEMD_UNIT_PATH", c, 0) < 0) | |
1927 | return -errno; | |
0301abf4 LP |
1928 | |
1929 | return 0; | |
1930 | } | |
88066b3a | 1931 | |
ea430986 | 1932 | char *unit_dbus_path(Unit *u) { |
ea430986 LP |
1933 | assert(u); |
1934 | ||
ac155bb8 | 1935 | if (!u->id) |
04ade7d2 LP |
1936 | return NULL; |
1937 | ||
48899192 | 1938 | return unit_dbus_path_from_name(u->id); |
ea430986 LP |
1939 | } |
1940 | ||
78edb35a | 1941 | static int unit_add_cgroup(Unit *u, CGroupBonding *b) { |
8e274523 LP |
1942 | int r; |
1943 | ||
1944 | assert(u); | |
1945 | assert(b); | |
35d2e7ec | 1946 | |
8e274523 LP |
1947 | assert(b->path); |
1948 | ||
e025b4c3 | 1949 | if (!b->controller) { |
246aa6dd LP |
1950 | b->controller = strdup(SYSTEMD_CGROUP_CONTROLLER); |
1951 | if (!b->controller) | |
1952 | return log_oom(); | |
35d2e7ec | 1953 | |
e025b4c3 LP |
1954 | b->ours = true; |
1955 | } | |
1956 | ||
8e274523 LP |
1957 | /* Ensure this hasn't been added yet */ |
1958 | assert(!b->unit); | |
1959 | ||
d686d8a9 LP |
1960 | if (streq(b->controller, SYSTEMD_CGROUP_CONTROLLER)) { |
1961 | CGroupBonding *l; | |
8e274523 | 1962 | |
ac155bb8 | 1963 | l = hashmap_get(u->manager->cgroup_bondings, b->path); |
d686d8a9 LP |
1964 | LIST_PREPEND(CGroupBonding, by_path, l, b); |
1965 | ||
246aa6dd LP |
1966 | r = hashmap_replace(u->manager->cgroup_bondings, b->path, l); |
1967 | if (r < 0) { | |
d686d8a9 LP |
1968 | LIST_REMOVE(CGroupBonding, by_path, l, b); |
1969 | return r; | |
1970 | } | |
8e274523 LP |
1971 | } |
1972 | ||
ac155bb8 | 1973 | LIST_PREPEND(CGroupBonding, by_unit, u->cgroup_bondings, b); |
8e274523 LP |
1974 | b->unit = u; |
1975 | ||
1976 | return 0; | |
1977 | } | |
1978 | ||
41f9172f | 1979 | char *unit_default_cgroup_path(Unit *u) { |
013b87c0 LP |
1980 | assert(u); |
1981 | ||
ac155bb8 | 1982 | if (u->instance) { |
ae018d9b | 1983 | _cleanup_free_ char *t = NULL, *escaped_template = NULL, *escaped_instance = NULL; |
013b87c0 | 1984 | |
ac155bb8 | 1985 | t = unit_name_template(u->id); |
cd0ed1db | 1986 | if (!t) |
4f2d528d LP |
1987 | return NULL; |
1988 | ||
ae018d9b LP |
1989 | escaped_template = cg_escape(t); |
1990 | if (!escaped_template) | |
1991 | return NULL; | |
1992 | ||
1993 | escaped_instance = cg_escape(u->id); | |
1994 | if (!escaped_instance) | |
1995 | return NULL; | |
1996 | ||
1997 | return strjoin(u->manager->cgroup_hierarchy, "/", escaped_template, "/", escaped_instance, NULL); | |
1998 | } else { | |
1999 | _cleanup_free_ char *escaped = NULL; | |
2000 | ||
2001 | escaped = cg_escape(u->id); | |
2002 | if (!escaped) | |
2003 | return NULL; | |
2004 | ||
2005 | return strjoin(u->manager->cgroup_hierarchy, "/", escaped, NULL); | |
2006 | } | |
013b87c0 LP |
2007 | } |
2008 | ||
246aa6dd | 2009 | int unit_add_cgroup_from_text(Unit *u, const char *name, bool overwrite, CGroupBonding **ret) { |
013b87c0 LP |
2010 | char *controller = NULL, *path = NULL; |
2011 | CGroupBonding *b = NULL; | |
e025b4c3 | 2012 | bool ours = false; |
8e274523 LP |
2013 | int r; |
2014 | ||
2015 | assert(u); | |
2016 | assert(name); | |
2017 | ||
246aa6dd LP |
2018 | r = cg_split_spec(name, &controller, &path); |
2019 | if (r < 0) | |
35d2e7ec | 2020 | return r; |
8e274523 | 2021 | |
e025b4c3 | 2022 | if (!path) { |
41f9172f | 2023 | path = unit_default_cgroup_path(u); |
e025b4c3 LP |
2024 | ours = true; |
2025 | } | |
013b87c0 | 2026 | |
e025b4c3 | 2027 | if (!controller) { |
55096547 | 2028 | controller = strdup(SYSTEMD_CGROUP_CONTROLLER); |
e025b4c3 LP |
2029 | ours = true; |
2030 | } | |
013b87c0 | 2031 | |
35d2e7ec LP |
2032 | if (!path || !controller) { |
2033 | free(path); | |
2034 | free(controller); | |
246aa6dd | 2035 | return log_oom(); |
8e274523 LP |
2036 | } |
2037 | ||
246aa6dd LP |
2038 | b = cgroup_bonding_find_list(u->cgroup_bondings, controller); |
2039 | if (b) { | |
2040 | if (streq(path, b->path)) { | |
2041 | free(path); | |
2042 | free(controller); | |
2043 | ||
2044 | if (ret) | |
2045 | *ret = b; | |
2046 | return 0; | |
2047 | } | |
2048 | ||
2049 | if (overwrite && !b->essential) { | |
2050 | free(controller); | |
2051 | ||
2052 | free(b->path); | |
2053 | b->path = path; | |
2054 | ||
2055 | b->ours = ours; | |
2056 | b->realized = false; | |
2057 | ||
2058 | if (ret) | |
2059 | *ret = b; | |
2060 | ||
2061 | return 1; | |
2062 | } | |
2063 | ||
013b87c0 | 2064 | r = -EEXIST; |
246aa6dd | 2065 | b = NULL; |
013b87c0 LP |
2066 | goto fail; |
2067 | } | |
8e274523 | 2068 | |
246aa6dd LP |
2069 | b = new0(CGroupBonding, 1); |
2070 | if (!b) { | |
8e274523 LP |
2071 | r = -ENOMEM; |
2072 | goto fail; | |
2073 | } | |
2074 | ||
013b87c0 LP |
2075 | b->controller = controller; |
2076 | b->path = path; | |
e025b4c3 LP |
2077 | b->ours = ours; |
2078 | b->essential = streq(controller, SYSTEMD_CGROUP_CONTROLLER); | |
8e274523 | 2079 | |
246aa6dd LP |
2080 | r = unit_add_cgroup(u, b); |
2081 | if (r < 0) | |
8e274523 LP |
2082 | goto fail; |
2083 | ||
246aa6dd LP |
2084 | if (ret) |
2085 | *ret = b; | |
2086 | ||
2087 | return 1; | |
8e274523 LP |
2088 | |
2089 | fail: | |
013b87c0 LP |
2090 | free(path); |
2091 | free(controller); | |
8e274523 LP |
2092 | free(b); |
2093 | ||
2094 | return r; | |
2095 | } | |
2096 | ||
06d4c99a | 2097 | static int unit_add_one_default_cgroup(Unit *u, const char *controller) { |
d686d8a9 | 2098 | CGroupBonding *b = NULL; |
8e274523 LP |
2099 | int r = -ENOMEM; |
2100 | ||
2101 | assert(u); | |
2102 | ||
78edb35a LP |
2103 | if (controller && !cg_controller_is_valid(controller, true)) |
2104 | return -EINVAL; | |
2105 | ||
06d4c99a LP |
2106 | if (!controller) |
2107 | controller = SYSTEMD_CGROUP_CONTROLLER; | |
8e274523 | 2108 | |
ac155bb8 | 2109 | if (cgroup_bonding_find_list(u->cgroup_bondings, controller)) |
06d4c99a | 2110 | return 0; |
8e274523 | 2111 | |
246aa6dd LP |
2112 | b = new0(CGroupBonding, 1); |
2113 | if (!b) | |
06d4c99a | 2114 | return -ENOMEM; |
8e274523 | 2115 | |
246aa6dd | 2116 | b->controller = strdup(controller); |
8755586e | 2117 | if (!b->controller) |
06d4c99a | 2118 | goto fail; |
d686d8a9 | 2119 | |
41f9172f LP |
2120 | b->path = unit_default_cgroup_path(u); |
2121 | if (!b->path) | |
06d4c99a | 2122 | goto fail; |
d686d8a9 | 2123 | |
06d4c99a LP |
2124 | b->ours = true; |
2125 | b->essential = streq(controller, SYSTEMD_CGROUP_CONTROLLER); | |
d686d8a9 | 2126 | |
246aa6dd LP |
2127 | r = unit_add_cgroup(u, b); |
2128 | if (r < 0) | |
06d4c99a | 2129 | goto fail; |
8e274523 | 2130 | |
26d04f86 | 2131 | return 1; |
8e274523 LP |
2132 | |
2133 | fail: | |
06d4c99a LP |
2134 | free(b->path); |
2135 | free(b->controller); | |
2136 | free(b); | |
8e274523 LP |
2137 | |
2138 | return r; | |
2139 | } | |
2140 | ||
06d4c99a | 2141 | int unit_add_default_cgroups(Unit *u) { |
ab1f0633 | 2142 | CGroupAttribute *a; |
06d4c99a LP |
2143 | char **c; |
2144 | int r; | |
ab1f0633 | 2145 | |
06d4c99a LP |
2146 | assert(u); |
2147 | ||
2148 | /* Adds in the default cgroups, if they weren't specified | |
2149 | * otherwise. */ | |
2150 | ||
ac155bb8 | 2151 | if (!u->manager->cgroup_hierarchy) |
df18d8c8 LP |
2152 | return 0; |
2153 | ||
246aa6dd LP |
2154 | r = unit_add_one_default_cgroup(u, NULL); |
2155 | if (r < 0) | |
06d4c99a LP |
2156 | return r; |
2157 | ||
ac155bb8 | 2158 | STRV_FOREACH(c, u->manager->default_controllers) |
ab1f0633 LP |
2159 | unit_add_one_default_cgroup(u, *c); |
2160 | ||
ac155bb8 | 2161 | LIST_FOREACH(by_unit, a, u->cgroup_attributes) |
ab1f0633 | 2162 | unit_add_one_default_cgroup(u, a->controller); |
06d4c99a LP |
2163 | |
2164 | return 0; | |
2165 | } | |
2166 | ||
8e274523 LP |
2167 | CGroupBonding* unit_get_default_cgroup(Unit *u) { |
2168 | assert(u); | |
2169 | ||
246aa6dd | 2170 | return cgroup_bonding_find_list(u->cgroup_bondings, NULL); |
8e274523 LP |
2171 | } |
2172 | ||
246aa6dd LP |
2173 | int unit_add_cgroup_attribute( |
2174 | Unit *u, | |
26d04f86 | 2175 | const CGroupSemantics *semantics, |
246aa6dd LP |
2176 | const char *controller, |
2177 | const char *name, | |
2178 | const char *value, | |
246aa6dd LP |
2179 | CGroupAttribute **ret) { |
2180 | ||
2181 | _cleanup_free_ char *c = NULL; | |
ab1f0633 | 2182 | CGroupAttribute *a; |
e884315e | 2183 | int r; |
ab1f0633 LP |
2184 | |
2185 | assert(u); | |
ab1f0633 LP |
2186 | assert(value); |
2187 | ||
26d04f86 LP |
2188 | if (semantics) { |
2189 | /* Semantics always take precedence */ | |
2190 | if (semantics->name) | |
2191 | name = semantics->name; | |
2192 | ||
2193 | if (semantics->controller) | |
2194 | controller = semantics->controller; | |
2195 | } | |
2196 | ||
2197 | if (!name) | |
2198 | return -EINVAL; | |
2199 | ||
ab1f0633 | 2200 | if (!controller) { |
e884315e LP |
2201 | r = cg_controller_from_attr(name, &c); |
2202 | if (r < 0) | |
ab1f0633 LP |
2203 | return -EINVAL; |
2204 | ||
ab1f0633 LP |
2205 | controller = c; |
2206 | } | |
2207 | ||
78edb35a LP |
2208 | if (!controller || |
2209 | streq(controller, SYSTEMD_CGROUP_CONTROLLER) || | |
2210 | streq(controller, "systemd")) | |
246aa6dd LP |
2211 | return -EINVAL; |
2212 | ||
26d04f86 LP |
2213 | if (!filename_is_safe(name)) |
2214 | return -EINVAL; | |
2215 | ||
78edb35a | 2216 | if (!cg_controller_is_valid(controller, false)) |
26d04f86 LP |
2217 | return -EINVAL; |
2218 | ||
2219 | /* Check if this attribute already exists. Note that we will | |
2220 | * explicitly check for the value here too, as there are | |
2221 | * attributes which accept multiple values. */ | |
246aa6dd LP |
2222 | a = cgroup_attribute_find_list(u->cgroup_attributes, controller, name); |
2223 | if (a) { | |
246aa6dd | 2224 | if (streq(value, a->value)) { |
26d04f86 | 2225 | /* Exactly the same value is always OK, let's ignore this */ |
246aa6dd LP |
2226 | if (ret) |
2227 | *ret = a; | |
2228 | ||
2229 | return 0; | |
2230 | } | |
2231 | ||
26d04f86 LP |
2232 | if (semantics && !semantics->multiple) { |
2233 | char *v; | |
246aa6dd | 2234 | |
26d04f86 LP |
2235 | /* If this is a single-item entry, we can |
2236 | * simply patch the existing attribute */ | |
2237 | ||
2238 | v = strdup(value); | |
2239 | if (!v) | |
2240 | return -ENOMEM; | |
246aa6dd | 2241 | |
26d04f86 LP |
2242 | free(a->value); |
2243 | a->value = v; | |
246aa6dd | 2244 | |
26d04f86 LP |
2245 | if (ret) |
2246 | *ret = a; | |
2247 | return 1; | |
2248 | } | |
ab1f0633 LP |
2249 | } |
2250 | ||
2251 | a = new0(CGroupAttribute, 1); | |
246aa6dd LP |
2252 | if (!a) |
2253 | return -ENOMEM; | |
ab1f0633 LP |
2254 | |
2255 | if (c) { | |
2256 | a->controller = c; | |
2257 | c = NULL; | |
2258 | } else | |
2259 | a->controller = strdup(controller); | |
2260 | ||
2261 | a->name = strdup(name); | |
2262 | a->value = strdup(value); | |
2263 | ||
2264 | if (!a->controller || !a->name || !a->value) { | |
2265 | free(a->controller); | |
2266 | free(a->name); | |
2267 | free(a->value); | |
2268 | free(a); | |
ab1f0633 LP |
2269 | return -ENOMEM; |
2270 | } | |
2271 | ||
26d04f86 | 2272 | a->semantics = semantics; |
246aa6dd | 2273 | a->unit = u; |
ab1f0633 | 2274 | |
ac155bb8 | 2275 | LIST_PREPEND(CGroupAttribute, by_unit, u->cgroup_attributes, a); |
ab1f0633 | 2276 | |
246aa6dd LP |
2277 | if (ret) |
2278 | *ret = a; | |
ab1f0633 | 2279 | |
246aa6dd | 2280 | return 1; |
ab1f0633 LP |
2281 | } |
2282 | ||
f6ff8c29 | 2283 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found) { |
78edb35a | 2284 | _cleanup_free_ char *t = NULL; |
f6ff8c29 LP |
2285 | int r; |
2286 | ||
2287 | assert(u); | |
2288 | assert(type); | |
2289 | assert(_found); | |
2290 | ||
78edb35a LP |
2291 | t = unit_name_change_suffix(u->id, type); |
2292 | if (!t) | |
f6ff8c29 LP |
2293 | return -ENOMEM; |
2294 | ||
2295 | assert(!unit_has_name(u, t)); | |
2296 | ||
ac155bb8 | 2297 | r = manager_load_unit(u->manager, t, NULL, NULL, _found); |
9e2f7c11 | 2298 | assert(r < 0 || *_found != u); |
f6ff8c29 LP |
2299 | return r; |
2300 | } | |
2301 | ||
a16e1123 | 2302 | int unit_get_related_unit(Unit *u, const char *type, Unit **_found) { |
78edb35a | 2303 | _cleanup_free_ char *t = NULL; |
a16e1123 | 2304 | Unit *found; |
a16e1123 LP |
2305 | |
2306 | assert(u); | |
2307 | assert(type); | |
2308 | assert(_found); | |
2309 | ||
78edb35a LP |
2310 | t = unit_name_change_suffix(u->id, type); |
2311 | if (!t) | |
a16e1123 LP |
2312 | return -ENOMEM; |
2313 | ||
2314 | assert(!unit_has_name(u, t)); | |
2315 | ||
ac155bb8 | 2316 | found = manager_get_unit(u->manager, t); |
a16e1123 LP |
2317 | if (!found) |
2318 | return -ENOENT; | |
2319 | ||
2320 | *_found = found; | |
2321 | return 0; | |
2322 | } | |
2323 | ||
05e343b7 LP |
2324 | int unit_watch_bus_name(Unit *u, const char *name) { |
2325 | assert(u); | |
2326 | assert(name); | |
2327 | ||
2328 | /* Watch a specific name on the bus. We only support one unit | |
2329 | * watching each name for now. */ | |
2330 | ||
ac155bb8 | 2331 | return hashmap_put(u->manager->watch_bus, name, u); |
05e343b7 LP |
2332 | } |
2333 | ||
2334 | void unit_unwatch_bus_name(Unit *u, const char *name) { | |
2335 | assert(u); | |
2336 | assert(name); | |
2337 | ||
ac155bb8 | 2338 | hashmap_remove_value(u->manager->watch_bus, name, u); |
05e343b7 LP |
2339 | } |
2340 | ||
a16e1123 LP |
2341 | bool unit_can_serialize(Unit *u) { |
2342 | assert(u); | |
2343 | ||
2344 | return UNIT_VTABLE(u)->serialize && UNIT_VTABLE(u)->deserialize_item; | |
2345 | } | |
2346 | ||
6b78f9b4 | 2347 | int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs) { |
a16e1123 LP |
2348 | int r; |
2349 | ||
2350 | assert(u); | |
2351 | assert(f); | |
2352 | assert(fds); | |
2353 | ||
2354 | if (!unit_can_serialize(u)) | |
2355 | return 0; | |
2356 | ||
2357 | if ((r = UNIT_VTABLE(u)->serialize(u, f, fds)) < 0) | |
2358 | return r; | |
2359 | ||
cca098b0 | 2360 | |
6b78f9b4 LP |
2361 | if (serialize_jobs) { |
2362 | if (u->job) { | |
2363 | fprintf(f, "job\n"); | |
2364 | job_serialize(u->job, f, fds); | |
2365 | } | |
2366 | ||
2367 | if (u->nop_job) { | |
2368 | fprintf(f, "job\n"); | |
2369 | job_serialize(u->nop_job, f, fds); | |
2370 | } | |
e0209d83 MS |
2371 | } |
2372 | ||
ac155bb8 MS |
2373 | dual_timestamp_serialize(f, "inactive-exit-timestamp", &u->inactive_exit_timestamp); |
2374 | dual_timestamp_serialize(f, "active-enter-timestamp", &u->active_enter_timestamp); | |
2375 | dual_timestamp_serialize(f, "active-exit-timestamp", &u->active_exit_timestamp); | |
2376 | dual_timestamp_serialize(f, "inactive-enter-timestamp", &u->inactive_enter_timestamp); | |
2377 | dual_timestamp_serialize(f, "condition-timestamp", &u->condition_timestamp); | |
2791a8f8 | 2378 | |
ac155bb8 MS |
2379 | if (dual_timestamp_is_set(&u->condition_timestamp)) |
2380 | unit_serialize_item(u, f, "condition-result", yes_no(u->condition_result)); | |
10717a1a | 2381 | |
a16e1123 LP |
2382 | /* End marker */ |
2383 | fputc('\n', f); | |
2384 | return 0; | |
2385 | } | |
2386 | ||
2387 | void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *format, ...) { | |
2388 | va_list ap; | |
2389 | ||
2390 | assert(u); | |
2391 | assert(f); | |
2392 | assert(key); | |
2393 | assert(format); | |
2394 | ||
2395 | fputs(key, f); | |
2396 | fputc('=', f); | |
2397 | ||
2398 | va_start(ap, format); | |
2399 | vfprintf(f, format, ap); | |
2400 | va_end(ap); | |
2401 | ||
2402 | fputc('\n', f); | |
2403 | } | |
2404 | ||
2405 | void unit_serialize_item(Unit *u, FILE *f, const char *key, const char *value) { | |
2406 | assert(u); | |
2407 | assert(f); | |
2408 | assert(key); | |
2409 | assert(value); | |
2410 | ||
2411 | fprintf(f, "%s=%s\n", key, value); | |
2412 | } | |
2413 | ||
2414 | int unit_deserialize(Unit *u, FILE *f, FDSet *fds) { | |
2415 | int r; | |
2416 | ||
2417 | assert(u); | |
2418 | assert(f); | |
2419 | assert(fds); | |
2420 | ||
2421 | if (!unit_can_serialize(u)) | |
2422 | return 0; | |
2423 | ||
2424 | for (;;) { | |
20c03b7b | 2425 | char line[LINE_MAX], *l, *v; |
a16e1123 LP |
2426 | size_t k; |
2427 | ||
2428 | if (!fgets(line, sizeof(line), f)) { | |
2429 | if (feof(f)) | |
2430 | return 0; | |
2431 | return -errno; | |
2432 | } | |
2433 | ||
10f8e83c | 2434 | char_array_0(line); |
a16e1123 LP |
2435 | l = strstrip(line); |
2436 | ||
2437 | /* End marker */ | |
2438 | if (l[0] == 0) | |
2439 | return 0; | |
2440 | ||
2441 | k = strcspn(l, "="); | |
2442 | ||
2443 | if (l[k] == '=') { | |
2444 | l[k] = 0; | |
2445 | v = l+k+1; | |
2446 | } else | |
2447 | v = l+k; | |
2448 | ||
cca098b0 | 2449 | if (streq(l, "job")) { |
39a18c60 MS |
2450 | if (v[0] == '\0') { |
2451 | /* new-style serialized job */ | |
2452 | Job *j = job_new_raw(u); | |
2453 | if (!j) | |
2454 | return -ENOMEM; | |
2455 | ||
2456 | r = job_deserialize(j, f, fds); | |
2457 | if (r < 0) { | |
2458 | job_free(j); | |
2459 | return r; | |
2460 | } | |
cca098b0 | 2461 | |
39a18c60 MS |
2462 | r = hashmap_put(u->manager->jobs, UINT32_TO_PTR(j->id), j); |
2463 | if (r < 0) { | |
2464 | job_free(j); | |
2465 | return r; | |
2466 | } | |
e0209d83 MS |
2467 | |
2468 | r = job_install_deserialized(j); | |
2469 | if (r < 0) { | |
2470 | hashmap_remove(u->manager->jobs, UINT32_TO_PTR(j->id)); | |
2471 | job_free(j); | |
2472 | return r; | |
2473 | } | |
6b19ad24 MS |
2474 | |
2475 | if (j->state == JOB_RUNNING) | |
2476 | u->manager->n_running_jobs++; | |
39a18c60 MS |
2477 | } else { |
2478 | /* legacy */ | |
2479 | JobType type = job_type_from_string(v); | |
2480 | if (type < 0) | |
2481 | log_debug("Failed to parse job type value %s", v); | |
2482 | else | |
2483 | u->deserialized_job = type; | |
2484 | } | |
cca098b0 | 2485 | continue; |
8aaf019b | 2486 | } else if (streq(l, "inactive-exit-timestamp")) { |
ac155bb8 | 2487 | dual_timestamp_deserialize(v, &u->inactive_exit_timestamp); |
8aaf019b LP |
2488 | continue; |
2489 | } else if (streq(l, "active-enter-timestamp")) { | |
ac155bb8 | 2490 | dual_timestamp_deserialize(v, &u->active_enter_timestamp); |
8aaf019b LP |
2491 | continue; |
2492 | } else if (streq(l, "active-exit-timestamp")) { | |
ac155bb8 | 2493 | dual_timestamp_deserialize(v, &u->active_exit_timestamp); |
8aaf019b LP |
2494 | continue; |
2495 | } else if (streq(l, "inactive-enter-timestamp")) { | |
ac155bb8 | 2496 | dual_timestamp_deserialize(v, &u->inactive_enter_timestamp); |
8aaf019b | 2497 | continue; |
2791a8f8 | 2498 | } else if (streq(l, "condition-timestamp")) { |
ac155bb8 | 2499 | dual_timestamp_deserialize(v, &u->condition_timestamp); |
2791a8f8 LP |
2500 | continue; |
2501 | } else if (streq(l, "condition-result")) { | |
2502 | int b; | |
2503 | ||
2504 | if ((b = parse_boolean(v)) < 0) | |
2505 | log_debug("Failed to parse condition result value %s", v); | |
2506 | else | |
ac155bb8 | 2507 | u->condition_result = b; |
efbac6d2 LP |
2508 | |
2509 | continue; | |
8aaf019b | 2510 | } |
cca098b0 | 2511 | |
a16e1123 LP |
2512 | if ((r = UNIT_VTABLE(u)->deserialize_item(u, l, v, fds)) < 0) |
2513 | return r; | |
2514 | } | |
2515 | } | |
2516 | ||
6e2ef85b LP |
2517 | int unit_add_node_link(Unit *u, const char *what, bool wants) { |
2518 | Unit *device; | |
2519 | char *e; | |
2520 | int r; | |
2521 | ||
2522 | assert(u); | |
2523 | ||
2524 | if (!what) | |
2525 | return 0; | |
2526 | ||
2527 | /* Adds in links to the device node that this unit is based on */ | |
2528 | ||
8407a5d0 | 2529 | if (!is_device_path(what)) |
6e2ef85b LP |
2530 | return 0; |
2531 | ||
35eb6b12 LP |
2532 | e = unit_name_from_path(what, ".device"); |
2533 | if (!e) | |
6e2ef85b LP |
2534 | return -ENOMEM; |
2535 | ||
ac155bb8 | 2536 | r = manager_load_unit(u->manager, e, NULL, NULL, &device); |
6e2ef85b | 2537 | free(e); |
6e2ef85b LP |
2538 | if (r < 0) |
2539 | return r; | |
2540 | ||
faa368e3 LP |
2541 | r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_BINDS_TO, device, true); |
2542 | if (r < 0) | |
6e2ef85b LP |
2543 | return r; |
2544 | ||
faa368e3 LP |
2545 | if (wants) { |
2546 | r = unit_add_dependency(device, UNIT_WANTS, u, false); | |
2547 | if (r < 0) | |
6e2ef85b | 2548 | return r; |
faa368e3 | 2549 | } |
6e2ef85b LP |
2550 | |
2551 | return 0; | |
2552 | } | |
a16e1123 | 2553 | |
cca098b0 LP |
2554 | int unit_coldplug(Unit *u) { |
2555 | int r; | |
2556 | ||
2557 | assert(u); | |
2558 | ||
2559 | if (UNIT_VTABLE(u)->coldplug) | |
2560 | if ((r = UNIT_VTABLE(u)->coldplug(u)) < 0) | |
2561 | return r; | |
2562 | ||
39a18c60 MS |
2563 | if (u->job) { |
2564 | r = job_coldplug(u->job); | |
2565 | if (r < 0) | |
2566 | return r; | |
2567 | } else if (u->deserialized_job >= 0) { | |
2568 | /* legacy */ | |
2569 | r = manager_add_job(u->manager, u->deserialized_job, u, JOB_IGNORE_REQUIREMENTS, false, NULL, NULL); | |
2570 | if (r < 0) | |
cca098b0 LP |
2571 | return r; |
2572 | ||
ac155bb8 | 2573 | u->deserialized_job = _JOB_TYPE_INVALID; |
cca098b0 LP |
2574 | } |
2575 | ||
2576 | return 0; | |
2577 | } | |
2578 | ||
b1e2b33c CR |
2579 | #pragma GCC diagnostic push |
2580 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
49b1d377 MS |
2581 | void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) { |
2582 | manager_status_printf(u->manager, false, status, unit_status_msg_format, unit_description(u)); | |
2583 | } | |
b1e2b33c | 2584 | #pragma GCC diagnostic pop |
49b1d377 | 2585 | |
45fb0699 | 2586 | bool unit_need_daemon_reload(Unit *u) { |
ae7a7182 OS |
2587 | _cleanup_strv_free_ char **t = NULL; |
2588 | char **path; | |
1b64d026 | 2589 | struct stat st; |
ae7a7182 | 2590 | unsigned loaded_cnt, current_cnt; |
1b64d026 | 2591 | |
45fb0699 LP |
2592 | assert(u); |
2593 | ||
ac155bb8 | 2594 | if (u->fragment_path) { |
5f4b19f4 | 2595 | zero(st); |
ac155bb8 | 2596 | if (stat(u->fragment_path, &st) < 0) |
5f4b19f4 LP |
2597 | /* What, cannot access this anymore? */ |
2598 | return true; | |
45fb0699 | 2599 | |
ac155bb8 MS |
2600 | if (u->fragment_mtime > 0 && |
2601 | timespec_load(&st.st_mtim) != u->fragment_mtime) | |
5f4b19f4 LP |
2602 | return true; |
2603 | } | |
2604 | ||
1b64d026 LP |
2605 | if (u->source_path) { |
2606 | zero(st); | |
2607 | if (stat(u->source_path, &st) < 0) | |
2608 | return true; | |
2609 | ||
2610 | if (u->source_mtime > 0 && | |
2611 | timespec_load(&st.st_mtim) != u->source_mtime) | |
2612 | return true; | |
2613 | } | |
5f4b19f4 | 2614 | |
ae7a7182 OS |
2615 | t = unit_find_dropin_paths(u); |
2616 | loaded_cnt = strv_length(t); | |
2617 | current_cnt = strv_length(u->dropin_paths); | |
2618 | ||
2619 | if (loaded_cnt == current_cnt) { | |
2620 | if (loaded_cnt == 0) | |
2621 | return false; | |
2622 | ||
2623 | if (strv_overlap(u->dropin_paths, t)) { | |
2624 | STRV_FOREACH(path, u->dropin_paths) { | |
2625 | zero(st); | |
2626 | if (stat(*path, &st) < 0) | |
2627 | return true; | |
2628 | ||
2629 | if (u->dropin_mtime > 0 && | |
2630 | timespec_load(&st.st_mtim) > u->dropin_mtime) | |
2631 | return true; | |
2632 | } | |
2633 | ||
2634 | return false; | |
2635 | } else | |
2636 | return true; | |
2637 | } else | |
2638 | return true; | |
45fb0699 LP |
2639 | } |
2640 | ||
fdf20a31 | 2641 | void unit_reset_failed(Unit *u) { |
5632e374 LP |
2642 | assert(u); |
2643 | ||
fdf20a31 MM |
2644 | if (UNIT_VTABLE(u)->reset_failed) |
2645 | UNIT_VTABLE(u)->reset_failed(u); | |
5632e374 LP |
2646 | } |
2647 | ||
a7f241db LP |
2648 | Unit *unit_following(Unit *u) { |
2649 | assert(u); | |
2650 | ||
2651 | if (UNIT_VTABLE(u)->following) | |
2652 | return UNIT_VTABLE(u)->following(u); | |
2653 | ||
2654 | return NULL; | |
2655 | } | |
2656 | ||
31afa0a4 | 2657 | bool unit_stop_pending(Unit *u) { |
18ffdfda LP |
2658 | assert(u); |
2659 | ||
31afa0a4 LP |
2660 | /* This call does check the current state of the unit. It's |
2661 | * hence useful to be called from state change calls of the | |
2662 | * unit itself, where the state isn't updated yet. This is | |
2663 | * different from unit_inactive_or_pending() which checks both | |
2664 | * the current state and for a queued job. */ | |
18ffdfda | 2665 | |
31afa0a4 LP |
2666 | return u->job && u->job->type == JOB_STOP; |
2667 | } | |
2668 | ||
2669 | bool unit_inactive_or_pending(Unit *u) { | |
2670 | assert(u); | |
2671 | ||
2672 | /* Returns true if the unit is inactive or going down */ | |
18ffdfda | 2673 | |
31afa0a4 | 2674 | if (unit_stop_pending(u)) |
18ffdfda LP |
2675 | return true; |
2676 | ||
2677 | return false; | |
2678 | } | |
2679 | ||
31afa0a4 | 2680 | bool unit_active_or_pending(Unit *u) { |
f976f3f6 LP |
2681 | assert(u); |
2682 | ||
f60c2665 | 2683 | /* Returns true if the unit is active or going up */ |
f976f3f6 LP |
2684 | |
2685 | if (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) | |
2686 | return true; | |
2687 | ||
ac155bb8 MS |
2688 | if (u->job && |
2689 | (u->job->type == JOB_START || | |
2690 | u->job->type == JOB_RELOAD_OR_START || | |
2691 | u->job->type == JOB_RESTART)) | |
f976f3f6 LP |
2692 | return true; |
2693 | ||
2694 | return false; | |
2695 | } | |
2696 | ||
c74f17d9 | 2697 | int unit_kill(Unit *u, KillWho w, int signo, DBusError *error) { |
8a0867d6 LP |
2698 | assert(u); |
2699 | assert(w >= 0 && w < _KILL_WHO_MAX); | |
8a0867d6 LP |
2700 | assert(signo > 0); |
2701 | assert(signo < _NSIG); | |
2702 | ||
8a0867d6 LP |
2703 | if (!UNIT_VTABLE(u)->kill) |
2704 | return -ENOTSUP; | |
2705 | ||
c74f17d9 | 2706 | return UNIT_VTABLE(u)->kill(u, w, signo, error); |
8a0867d6 LP |
2707 | } |
2708 | ||
d91c34f2 LP |
2709 | int unit_kill_common( |
2710 | Unit *u, | |
2711 | KillWho who, | |
2712 | int signo, | |
2713 | pid_t main_pid, | |
2714 | pid_t control_pid, | |
2715 | DBusError *error) { | |
2716 | ||
814cc562 MS |
2717 | int r = 0; |
2718 | ||
2719 | if (who == KILL_MAIN && main_pid <= 0) { | |
2720 | if (main_pid < 0) | |
2721 | dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no main processes", unit_type_to_string(u->type)); | |
2722 | else | |
2723 | dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill"); | |
2724 | return -ESRCH; | |
2725 | } | |
2726 | ||
2727 | if (who == KILL_CONTROL && control_pid <= 0) { | |
2728 | if (control_pid < 0) | |
2729 | dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no control processes", unit_type_to_string(u->type)); | |
2730 | else | |
2731 | dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill"); | |
2732 | return -ESRCH; | |
2733 | } | |
2734 | ||
2735 | if (who == KILL_CONTROL || who == KILL_ALL) | |
2736 | if (control_pid > 0) | |
2737 | if (kill(control_pid, signo) < 0) | |
2738 | r = -errno; | |
2739 | ||
2740 | if (who == KILL_MAIN || who == KILL_ALL) | |
2741 | if (main_pid > 0) | |
2742 | if (kill(main_pid, signo) < 0) | |
2743 | r = -errno; | |
2744 | ||
2745 | if (who == KILL_ALL) { | |
2746 | _cleanup_set_free_ Set *pid_set = NULL; | |
2747 | int q; | |
2748 | ||
2749 | pid_set = set_new(trivial_hash_func, trivial_compare_func); | |
2750 | if (!pid_set) | |
2751 | return -ENOMEM; | |
2752 | ||
2753 | /* Exclude the control/main pid from being killed via the cgroup */ | |
2754 | if (control_pid > 0) { | |
2755 | q = set_put(pid_set, LONG_TO_PTR(control_pid)); | |
2756 | if (q < 0) | |
2757 | return q; | |
2758 | } | |
2759 | ||
2760 | if (main_pid > 0) { | |
2761 | q = set_put(pid_set, LONG_TO_PTR(main_pid)); | |
2762 | if (q < 0) | |
2763 | return q; | |
2764 | } | |
2765 | ||
2766 | q = cgroup_bonding_kill_list(u->cgroup_bondings, signo, false, false, pid_set, NULL); | |
2767 | if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT) | |
2768 | r = q; | |
2769 | } | |
2770 | ||
2771 | return r; | |
2772 | } | |
2773 | ||
6210e7fc LP |
2774 | int unit_following_set(Unit *u, Set **s) { |
2775 | assert(u); | |
2776 | assert(s); | |
2777 | ||
2778 | if (UNIT_VTABLE(u)->following_set) | |
2779 | return UNIT_VTABLE(u)->following_set(u, s); | |
2780 | ||
2781 | *s = NULL; | |
2782 | return 0; | |
2783 | } | |
2784 | ||
a4375746 LP |
2785 | UnitFileState unit_get_unit_file_state(Unit *u) { |
2786 | assert(u); | |
2787 | ||
ac155bb8 MS |
2788 | if (u->unit_file_state < 0 && u->fragment_path) |
2789 | u->unit_file_state = unit_file_get_state( | |
67445f4e | 2790 | u->manager->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER, |
9eb977db | 2791 | NULL, path_get_file_name(u->fragment_path)); |
a4375746 | 2792 | |
ac155bb8 | 2793 | return u->unit_file_state; |
a4375746 LP |
2794 | } |
2795 | ||
57020a3a LP |
2796 | Unit* unit_ref_set(UnitRef *ref, Unit *u) { |
2797 | assert(ref); | |
2798 | assert(u); | |
2799 | ||
2800 | if (ref->unit) | |
2801 | unit_ref_unset(ref); | |
2802 | ||
2803 | ref->unit = u; | |
ac155bb8 | 2804 | LIST_PREPEND(UnitRef, refs, u->refs, ref); |
57020a3a LP |
2805 | return u; |
2806 | } | |
2807 | ||
2808 | void unit_ref_unset(UnitRef *ref) { | |
2809 | assert(ref); | |
2810 | ||
2811 | if (!ref->unit) | |
2812 | return; | |
2813 | ||
ac155bb8 | 2814 | LIST_REMOVE(UnitRef, refs, ref->unit->refs, ref); |
57020a3a LP |
2815 | ref->unit = NULL; |
2816 | } | |
2817 | ||
7c8fa05c LP |
2818 | int unit_add_one_mount_link(Unit *u, Mount *m) { |
2819 | char **i; | |
2820 | ||
2821 | assert(u); | |
2822 | assert(m); | |
2823 | ||
2824 | if (u->load_state != UNIT_LOADED || | |
2825 | UNIT(m)->load_state != UNIT_LOADED) | |
2826 | return 0; | |
2827 | ||
2828 | STRV_FOREACH(i, u->requires_mounts_for) { | |
2829 | ||
2830 | if (UNIT(m) == u) | |
2831 | continue; | |
2832 | ||
2833 | if (!path_startswith(*i, m->where)) | |
2834 | continue; | |
2835 | ||
2836 | return unit_add_two_dependencies(u, UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true); | |
2837 | } | |
2838 | ||
2839 | return 0; | |
2840 | } | |
2841 | ||
2842 | int unit_add_mount_links(Unit *u) { | |
2843 | Unit *other; | |
2844 | int r; | |
2845 | ||
2846 | assert(u); | |
2847 | ||
2848 | LIST_FOREACH(units_by_type, other, u->manager->units_by_type[UNIT_MOUNT]) { | |
2849 | r = unit_add_one_mount_link(u, MOUNT(other)); | |
2850 | if (r < 0) | |
2851 | return r; | |
2852 | } | |
2853 | ||
2854 | return 0; | |
2855 | } | |
2856 | ||
cba6e062 LP |
2857 | int unit_exec_context_defaults(Unit *u, ExecContext *c) { |
2858 | unsigned i; | |
2859 | int r; | |
2860 | ||
e06c73cc LP |
2861 | assert(u); |
2862 | assert(c); | |
2863 | ||
cba6e062 | 2864 | /* This only copies in the ones that need memory */ |
e06c73cc | 2865 | |
cba6e062 LP |
2866 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
2867 | if (u->manager->rlimit[i] && !c->rlimit[i]) { | |
2868 | c->rlimit[i] = newdup(struct rlimit, u->manager->rlimit[i], 1); | |
2869 | if (!c->rlimit[i]) | |
2870 | return -ENOMEM; | |
2871 | } | |
2872 | ||
67445f4e | 2873 | if (u->manager->running_as == SYSTEMD_USER && |
cba6e062 | 2874 | !c->working_directory) { |
e06c73cc | 2875 | |
cba6e062 LP |
2876 | r = get_home_dir(&c->working_directory); |
2877 | if (r < 0) | |
2878 | return r; | |
2879 | } | |
2880 | ||
2881 | return 0; | |
e06c73cc LP |
2882 | } |
2883 | ||
3ef63c31 LP |
2884 | ExecContext *unit_get_exec_context(Unit *u) { |
2885 | size_t offset; | |
2886 | assert(u); | |
2887 | ||
2888 | offset = UNIT_VTABLE(u)->exec_context_offset; | |
2889 | if (offset <= 0) | |
2890 | return NULL; | |
2891 | ||
2892 | return (ExecContext*) ((uint8_t*) u + offset); | |
2893 | } | |
2894 | ||
26d04f86 LP |
2895 | static int drop_in_file(Unit *u, bool runtime, const char *name, char **_p, char **_q) { |
2896 | char *p, *q; | |
2897 | int r; | |
2898 | ||
71645aca | 2899 | assert(u); |
26d04f86 LP |
2900 | assert(name); |
2901 | assert(_p); | |
2902 | assert(_q); | |
71645aca | 2903 | |
26d04f86 | 2904 | if (u->manager->running_as == SYSTEMD_USER && runtime) |
71645aca LP |
2905 | return -ENOTSUP; |
2906 | ||
2907 | if (!filename_is_safe(name)) | |
2908 | return -EINVAL; | |
2909 | ||
26d04f86 LP |
2910 | if (u->manager->running_as == SYSTEMD_USER) { |
2911 | _cleanup_free_ char *c = NULL; | |
2912 | ||
2913 | r = user_config_home(&c); | |
2914 | if (r < 0) | |
2915 | return r; | |
2916 | if (r == 0) | |
2917 | return -ENOENT; | |
2918 | ||
2919 | p = strjoin(c, "/", u->id, ".d", NULL); | |
2920 | } else if (runtime) | |
2921 | p = strjoin("/run/systemd/system/", u->id, ".d", NULL); | |
2922 | else | |
2923 | p = strjoin("/etc/systemd/system/", u->id, ".d", NULL); | |
71645aca LP |
2924 | if (!p) |
2925 | return -ENOMEM; | |
2926 | ||
2927 | q = strjoin(p, "/50-", name, ".conf", NULL); | |
26d04f86 LP |
2928 | if (!q) { |
2929 | free(p); | |
71645aca | 2930 | return -ENOMEM; |
26d04f86 | 2931 | } |
71645aca | 2932 | |
26d04f86 LP |
2933 | *_p = p; |
2934 | *_q = q; | |
2935 | return 0; | |
71645aca LP |
2936 | } |
2937 | ||
26d04f86 | 2938 | int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data) { |
71645aca | 2939 | _cleanup_free_ char *p = NULL, *q = NULL; |
26d04f86 | 2940 | int r; |
71645aca LP |
2941 | |
2942 | assert(u); | |
2943 | ||
26d04f86 LP |
2944 | r = drop_in_file(u, runtime, name, &p, &q); |
2945 | if (r < 0) | |
2946 | return r; | |
71645aca | 2947 | |
26d04f86 | 2948 | mkdir_p(p, 0755); |
574d5f2d | 2949 | return write_string_file_atomic_label(q, data); |
26d04f86 | 2950 | } |
71645aca | 2951 | |
26d04f86 LP |
2952 | int unit_remove_drop_in(Unit *u, bool runtime, const char *name) { |
2953 | _cleanup_free_ char *p = NULL, *q = NULL; | |
2954 | int r; | |
71645aca | 2955 | |
26d04f86 | 2956 | assert(u); |
71645aca | 2957 | |
26d04f86 | 2958 | r = drop_in_file(u, runtime, name, &p, &q); |
71645aca | 2959 | if (unlink(q) < 0) |
26d04f86 LP |
2960 | r = -errno; |
2961 | else | |
2962 | r = 0; | |
71645aca LP |
2963 | |
2964 | rmdir(p); | |
26d04f86 | 2965 | return r; |
71645aca LP |
2966 | } |
2967 | ||
cd2086fe LP |
2968 | int unit_kill_context( |
2969 | Unit *u, | |
2970 | KillContext *c, | |
2971 | bool sigkill, | |
2972 | pid_t main_pid, | |
2973 | pid_t control_pid, | |
2974 | bool main_pid_alien) { | |
2975 | ||
2976 | int sig, wait_for_exit = 0, r; | |
2977 | ||
2978 | assert(u); | |
2979 | assert(c); | |
2980 | ||
2981 | if (c->kill_mode == KILL_NONE) | |
2982 | return 0; | |
2983 | ||
2984 | sig = sigkill ? SIGKILL : c->kill_signal; | |
2985 | ||
2986 | if (main_pid > 0) { | |
2987 | r = kill_and_sigcont(main_pid, sig); | |
2988 | ||
2989 | if (r < 0 && r != -ESRCH) { | |
2990 | _cleanup_free_ char *comm = NULL; | |
2991 | get_process_comm(main_pid, &comm); | |
2992 | ||
2993 | log_warning_unit(u->id, "Failed to kill main process %li (%s): %s", | |
2994 | (long) main_pid, strna(comm), strerror(-r)); | |
2995 | } else | |
2996 | wait_for_exit = !main_pid_alien; | |
2997 | } | |
2998 | ||
2999 | if (control_pid > 0) { | |
3000 | r = kill_and_sigcont(control_pid, sig); | |
3001 | ||
3002 | if (r < 0 && r != -ESRCH) { | |
3003 | _cleanup_free_ char *comm = NULL; | |
3004 | get_process_comm(control_pid, &comm); | |
3005 | ||
3006 | log_warning_unit(u->id, | |
3007 | "Failed to kill control process %li (%s): %s", | |
3008 | (long) control_pid, strna(comm), strerror(-r)); | |
3009 | } else | |
3010 | wait_for_exit = true; | |
3011 | } | |
3012 | ||
3013 | if (c->kill_mode == KILL_CONTROL_GROUP) { | |
3014 | _cleanup_set_free_ Set *pid_set = NULL; | |
3015 | ||
3016 | pid_set = set_new(trivial_hash_func, trivial_compare_func); | |
3017 | if (!pid_set) | |
3018 | return -ENOMEM; | |
3019 | ||
3020 | /* Exclude the main/control pids from being killed via the cgroup */ | |
3021 | if (main_pid > 0) { | |
3022 | r = set_put(pid_set, LONG_TO_PTR(main_pid)); | |
3023 | if (r < 0) | |
3024 | return r; | |
3025 | } | |
3026 | ||
3027 | if (control_pid > 0) { | |
3028 | r = set_put(pid_set, LONG_TO_PTR(control_pid)); | |
3029 | if (r < 0) | |
3030 | return r; | |
3031 | } | |
3032 | ||
3033 | r = cgroup_bonding_kill_list(u->cgroup_bondings, sig, true, false, pid_set, NULL); | |
3034 | if (r < 0) { | |
3035 | if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) | |
3036 | log_warning_unit(u->id, "Failed to kill control group: %s", strerror(-r)); | |
3037 | } else if (r > 0) | |
3038 | wait_for_exit = true; | |
3039 | } | |
3040 | ||
3041 | return wait_for_exit; | |
3042 | } | |
3043 | ||
94f04347 LP |
3044 | static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = { |
3045 | [UNIT_ACTIVE] = "active", | |
032ff4af | 3046 | [UNIT_RELOADING] = "reloading", |
94f04347 | 3047 | [UNIT_INACTIVE] = "inactive", |
fdf20a31 | 3048 | [UNIT_FAILED] = "failed", |
94f04347 LP |
3049 | [UNIT_ACTIVATING] = "activating", |
3050 | [UNIT_DEACTIVATING] = "deactivating" | |
3051 | }; | |
3052 | ||
3053 | DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState); | |
3054 | ||
3055 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { | |
3056 | [UNIT_REQUIRES] = "Requires", | |
9e2f7c11 | 3057 | [UNIT_REQUIRES_OVERRIDABLE] = "RequiresOverridable", |
94f04347 | 3058 | [UNIT_REQUISITE] = "Requisite", |
9e2f7c11 | 3059 | [UNIT_REQUISITE_OVERRIDABLE] = "RequisiteOverridable", |
ac6a4abe MS |
3060 | [UNIT_WANTS] = "Wants", |
3061 | [UNIT_BINDS_TO] = "BindsTo", | |
3062 | [UNIT_PART_OF] = "PartOf", | |
94f04347 | 3063 | [UNIT_REQUIRED_BY] = "RequiredBy", |
9e2f7c11 | 3064 | [UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable", |
94f04347 | 3065 | [UNIT_WANTED_BY] = "WantedBy", |
ac6a4abe MS |
3066 | [UNIT_BOUND_BY] = "BoundBy", |
3067 | [UNIT_CONSISTS_OF] = "ConsistsOf", | |
94f04347 | 3068 | [UNIT_CONFLICTS] = "Conflicts", |
69dd2852 | 3069 | [UNIT_CONFLICTED_BY] = "ConflictedBy", |
94f04347 LP |
3070 | [UNIT_BEFORE] = "Before", |
3071 | [UNIT_AFTER] = "After", | |
57020a3a LP |
3072 | [UNIT_ON_FAILURE] = "OnFailure", |
3073 | [UNIT_TRIGGERS] = "Triggers", | |
4dcc1cb4 | 3074 | [UNIT_TRIGGERED_BY] = "TriggeredBy", |
7f2cddae | 3075 | [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo", |
ac6a4abe MS |
3076 | [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom", |
3077 | [UNIT_REFERENCES] = "References", | |
3078 | [UNIT_REFERENCED_BY] = "ReferencedBy", | |
94f04347 LP |
3079 | }; |
3080 | ||
3081 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); |