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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 | |
718db961 LP |
32 | #include "sd-id128.h" |
33 | #include "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" |
71645aca | 47 | #include "mkdir.h" |
a5c32cff HH |
48 | #include "label.h" |
49 | #include "fileio-label.h" | |
814cc562 | 50 | #include "bus-errors.h" |
718db961 | 51 | #include "dbus.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 | 62 | [UNIT_SWAP] = &swap_vtable, |
a016b922 | 63 | [UNIT_PATH] = &path_vtable, |
6c12b52e LP |
64 | [UNIT_SLICE] = &slice_vtable, |
65 | [UNIT_SCOPE] = &scope_vtable | |
87f0e418 LP |
66 | }; |
67 | ||
7d17cfbc | 68 | Unit *unit_new(Manager *m, size_t size) { |
87f0e418 LP |
69 | Unit *u; |
70 | ||
71 | assert(m); | |
ac155bb8 | 72 | assert(size >= sizeof(Unit)); |
87f0e418 | 73 | |
7d17cfbc MS |
74 | u = malloc0(size); |
75 | if (!u) | |
87f0e418 LP |
76 | return NULL; |
77 | ||
ac155bb8 MS |
78 | u->names = set_new(string_hash_func, string_compare_func); |
79 | if (!u->names) { | |
87f0e418 LP |
80 | free(u); |
81 | return NULL; | |
82 | } | |
83 | ||
ac155bb8 MS |
84 | u->manager = m; |
85 | u->type = _UNIT_TYPE_INVALID; | |
86 | u->deserialized_job = _JOB_TYPE_INVALID; | |
87 | u->default_dependencies = true; | |
88 | u->unit_file_state = _UNIT_FILE_STATE_INVALID; | |
d420282b | 89 | u->on_failure_job_mode = JOB_REPLACE; |
87f0e418 LP |
90 | |
91 | return u; | |
92 | } | |
93 | ||
f278026d LP |
94 | bool unit_has_name(Unit *u, const char *name) { |
95 | assert(u); | |
96 | assert(name); | |
97 | ||
ac155bb8 | 98 | return !!set_get(u->names, (char*) name); |
f278026d LP |
99 | } |
100 | ||
87f0e418 LP |
101 | int unit_add_name(Unit *u, const char *text) { |
102 | UnitType t; | |
276c3e78 | 103 | char *s, *i = NULL; |
87f0e418 LP |
104 | int r; |
105 | ||
106 | assert(u); | |
107 | assert(text); | |
108 | ||
9e2f7c11 | 109 | if (unit_name_is_template(text)) { |
ac155bb8 | 110 | if (!u->instance) |
9e2f7c11 | 111 | return -EINVAL; |
87f0e418 | 112 | |
ac155bb8 | 113 | s = unit_name_replace_instance(text, u->instance); |
9e2f7c11 LP |
114 | } else |
115 | s = strdup(text); | |
87f0e418 | 116 | |
9e2f7c11 LP |
117 | if (!s) |
118 | return -ENOMEM; | |
87f0e418 | 119 | |
b9c0d441 | 120 | if (!unit_name_is_valid(s, false)) { |
9e2f7c11 LP |
121 | r = -EINVAL; |
122 | goto fail; | |
123 | } | |
e537352b | 124 | |
9e2f7c11 | 125 | assert_se((t = unit_name_to_type(s)) >= 0); |
87f0e418 | 126 | |
ac155bb8 | 127 | if (u->type != _UNIT_TYPE_INVALID && t != u->type) { |
9e2f7c11 LP |
128 | r = -EINVAL; |
129 | goto fail; | |
130 | } | |
87f0e418 | 131 | |
e48614c4 ZJS |
132 | r = unit_name_to_instance(s, &i); |
133 | if (r < 0) | |
9e2f7c11 | 134 | goto fail; |
87f0e418 | 135 | |
796ba554 LP |
136 | if (i && unit_vtable[t]->no_instances) { |
137 | r = -EINVAL; | |
9e2f7c11 | 138 | goto fail; |
796ba554 | 139 | } |
9e2f7c11 | 140 | |
276c3e78 LP |
141 | /* Ensure that this unit is either instanced or not instanced, |
142 | * but not both. */ | |
ac155bb8 | 143 | if (u->type != _UNIT_TYPE_INVALID && !u->instance != !i) { |
9e2f7c11 LP |
144 | r = -EINVAL; |
145 | goto fail; | |
146 | } | |
147 | ||
148 | if (unit_vtable[t]->no_alias && | |
ac155bb8 MS |
149 | !set_isempty(u->names) && |
150 | !set_get(u->names, s)) { | |
9e2f7c11 LP |
151 | r = -EEXIST; |
152 | goto fail; | |
153 | } | |
154 | ||
ac155bb8 | 155 | if (hashmap_size(u->manager->units) >= MANAGER_MAX_NAMES) { |
4f0f902f LP |
156 | r = -E2BIG; |
157 | goto fail; | |
158 | } | |
159 | ||
e48614c4 ZJS |
160 | r = set_put(u->names, s); |
161 | if (r < 0) { | |
9e2f7c11 LP |
162 | if (r == -EEXIST) |
163 | r = 0; | |
164 | goto fail; | |
87f0e418 LP |
165 | } |
166 | ||
e48614c4 ZJS |
167 | r = hashmap_put(u->manager->units, s, u); |
168 | if (r < 0) { | |
ac155bb8 | 169 | set_remove(u->names, s); |
9e2f7c11 | 170 | goto fail; |
87f0e418 LP |
171 | } |
172 | ||
ac155bb8 | 173 | if (u->type == _UNIT_TYPE_INVALID) { |
ef734fd6 | 174 | |
ac155bb8 MS |
175 | u->type = t; |
176 | u->id = s; | |
177 | u->instance = i; | |
9e2f7c11 | 178 | |
71fda00f | 179 | LIST_PREPEND(units_by_type, u->manager->units_by_type[t], u); |
e537352b LP |
180 | |
181 | if (UNIT_VTABLE(u)->init) | |
182 | UNIT_VTABLE(u)->init(u); | |
9e2f7c11 LP |
183 | } else |
184 | free(i); | |
87f0e418 | 185 | |
c1e1601e | 186 | unit_add_to_dbus_queue(u); |
87f0e418 | 187 | return 0; |
9e2f7c11 LP |
188 | |
189 | fail: | |
190 | free(s); | |
191 | free(i); | |
192 | ||
193 | return r; | |
87f0e418 LP |
194 | } |
195 | ||
0ae97ec1 | 196 | int unit_choose_id(Unit *u, const char *name) { |
68eda4bd RC |
197 | char *s, *i; |
198 | _cleanup_free_ char *t = NULL; | |
276c3e78 | 199 | int r; |
0ae97ec1 LP |
200 | |
201 | assert(u); | |
202 | assert(name); | |
203 | ||
9e2f7c11 LP |
204 | if (unit_name_is_template(name)) { |
205 | ||
ac155bb8 | 206 | if (!u->instance) |
9e2f7c11 LP |
207 | return -EINVAL; |
208 | ||
e48614c4 ZJS |
209 | t = unit_name_replace_instance(name, u->instance); |
210 | if (!t) | |
9e2f7c11 LP |
211 | return -ENOMEM; |
212 | ||
213 | name = t; | |
214 | } | |
215 | ||
0ae97ec1 | 216 | /* Selects one of the names of this unit as the id */ |
ac155bb8 | 217 | s = set_get(u->names, (char*) name); |
0ae97ec1 | 218 | |
9e2f7c11 | 219 | if (!s) |
0ae97ec1 LP |
220 | return -ENOENT; |
221 | ||
e48614c4 ZJS |
222 | r = unit_name_to_instance(s, &i); |
223 | if (r < 0) | |
276c3e78 LP |
224 | return r; |
225 | ||
ac155bb8 | 226 | u->id = s; |
276c3e78 | 227 | |
ac155bb8 MS |
228 | free(u->instance); |
229 | u->instance = i; | |
276c3e78 | 230 | |
c1e1601e | 231 | unit_add_to_dbus_queue(u); |
9e2f7c11 | 232 | |
0ae97ec1 LP |
233 | return 0; |
234 | } | |
235 | ||
f50e0a01 LP |
236 | int unit_set_description(Unit *u, const char *description) { |
237 | char *s; | |
238 | ||
239 | assert(u); | |
240 | ||
8aec412f LP |
241 | if (isempty(description)) |
242 | s = NULL; | |
243 | else { | |
244 | s = strdup(description); | |
245 | if (!s) | |
246 | return -ENOMEM; | |
247 | } | |
f50e0a01 | 248 | |
ac155bb8 MS |
249 | free(u->description); |
250 | u->description = s; | |
c1e1601e LP |
251 | |
252 | unit_add_to_dbus_queue(u); | |
f50e0a01 LP |
253 | return 0; |
254 | } | |
255 | ||
701cc384 LP |
256 | bool unit_check_gc(Unit *u) { |
257 | assert(u); | |
258 | ||
ac155bb8 | 259 | if (u->load_state == UNIT_STUB) |
b86d44e5 LP |
260 | return true; |
261 | ||
701cc384 LP |
262 | if (UNIT_VTABLE(u)->no_gc) |
263 | return true; | |
264 | ||
ac155bb8 | 265 | if (u->no_gc) |
6c073082 LP |
266 | return true; |
267 | ||
ac155bb8 | 268 | if (u->job) |
701cc384 LP |
269 | return true; |
270 | ||
e0209d83 MS |
271 | if (u->nop_job) |
272 | return true; | |
273 | ||
701cc384 LP |
274 | if (unit_active_state(u) != UNIT_INACTIVE) |
275 | return true; | |
276 | ||
9d576438 LP |
277 | if (u->refs) |
278 | return true; | |
279 | ||
701cc384 LP |
280 | if (UNIT_VTABLE(u)->check_gc) |
281 | if (UNIT_VTABLE(u)->check_gc(u)) | |
282 | return true; | |
283 | ||
284 | return false; | |
285 | } | |
286 | ||
87f0e418 LP |
287 | void unit_add_to_load_queue(Unit *u) { |
288 | assert(u); | |
ac155bb8 | 289 | assert(u->type != _UNIT_TYPE_INVALID); |
87f0e418 | 290 | |
ac155bb8 | 291 | if (u->load_state != UNIT_STUB || u->in_load_queue) |
87f0e418 LP |
292 | return; |
293 | ||
71fda00f | 294 | LIST_PREPEND(load_queue, u->manager->load_queue, u); |
ac155bb8 | 295 | u->in_load_queue = true; |
87f0e418 LP |
296 | } |
297 | ||
23a177ef LP |
298 | void unit_add_to_cleanup_queue(Unit *u) { |
299 | assert(u); | |
300 | ||
ac155bb8 | 301 | if (u->in_cleanup_queue) |
23a177ef LP |
302 | return; |
303 | ||
71fda00f | 304 | LIST_PREPEND(cleanup_queue, u->manager->cleanup_queue, u); |
ac155bb8 | 305 | u->in_cleanup_queue = true; |
23a177ef LP |
306 | } |
307 | ||
701cc384 LP |
308 | void unit_add_to_gc_queue(Unit *u) { |
309 | assert(u); | |
310 | ||
ac155bb8 | 311 | if (u->in_gc_queue || u->in_cleanup_queue) |
701cc384 LP |
312 | return; |
313 | ||
314 | if (unit_check_gc(u)) | |
315 | return; | |
316 | ||
71fda00f | 317 | LIST_PREPEND(gc_queue, u->manager->gc_queue, u); |
ac155bb8 | 318 | u->in_gc_queue = true; |
701cc384 | 319 | |
ac155bb8 | 320 | u->manager->n_in_gc_queue ++; |
701cc384 LP |
321 | } |
322 | ||
c1e1601e LP |
323 | void unit_add_to_dbus_queue(Unit *u) { |
324 | assert(u); | |
ac155bb8 | 325 | assert(u->type != _UNIT_TYPE_INVALID); |
c1e1601e | 326 | |
ac155bb8 | 327 | if (u->load_state == UNIT_STUB || u->in_dbus_queue) |
c1e1601e LP |
328 | return; |
329 | ||
a567261a | 330 | /* Shortcut things if nobody cares */ |
718db961 | 331 | if (set_isempty(u->manager->subscribed)) { |
ac155bb8 | 332 | u->sent_dbus_new_signal = true; |
94b6dfa2 LP |
333 | return; |
334 | } | |
335 | ||
71fda00f | 336 | LIST_PREPEND(dbus_queue, u->manager->dbus_unit_queue, u); |
ac155bb8 | 337 | u->in_dbus_queue = true; |
c1e1601e LP |
338 | } |
339 | ||
87f0e418 LP |
340 | static void bidi_set_free(Unit *u, Set *s) { |
341 | Iterator i; | |
342 | Unit *other; | |
343 | ||
344 | assert(u); | |
345 | ||
346 | /* Frees the set and makes sure we are dropped from the | |
347 | * inverse pointers */ | |
348 | ||
349 | SET_FOREACH(other, s, i) { | |
350 | UnitDependency d; | |
351 | ||
352 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
ac155bb8 | 353 | set_remove(other->dependencies[d], u); |
701cc384 LP |
354 | |
355 | unit_add_to_gc_queue(other); | |
87f0e418 LP |
356 | } |
357 | ||
358 | set_free(s); | |
359 | } | |
360 | ||
c2756a68 LP |
361 | static void unit_remove_transient(Unit *u) { |
362 | char **i; | |
363 | ||
364 | assert(u); | |
365 | ||
366 | if (!u->transient) | |
367 | return; | |
368 | ||
369 | if (u->fragment_path) | |
370 | unlink(u->fragment_path); | |
371 | ||
372 | STRV_FOREACH(i, u->dropin_paths) { | |
373 | _cleanup_free_ char *p = NULL; | |
374 | int r; | |
375 | ||
376 | unlink(*i); | |
377 | ||
378 | r = path_get_parent(*i, &p); | |
379 | if (r >= 0) | |
380 | rmdir(p); | |
381 | } | |
382 | } | |
383 | ||
a57f7e2c LP |
384 | static void unit_free_requires_mounts_for(Unit *u) { |
385 | char **j; | |
386 | ||
387 | STRV_FOREACH(j, u->requires_mounts_for) { | |
388 | char s[strlen(*j) + 1]; | |
389 | ||
390 | PATH_FOREACH_PREFIX_MORE(s, *j) { | |
391 | char *y; | |
392 | Set *x; | |
393 | ||
394 | x = hashmap_get2(u->manager->units_requiring_mounts_for, s, (void**) &y); | |
395 | if (!x) | |
396 | continue; | |
397 | ||
398 | set_remove(x, u); | |
399 | ||
400 | if (set_isempty(x)) { | |
401 | hashmap_remove(u->manager->units_requiring_mounts_for, y); | |
402 | free(y); | |
403 | set_free(x); | |
404 | } | |
405 | } | |
406 | } | |
407 | ||
408 | strv_free(u->requires_mounts_for); | |
409 | u->requires_mounts_for = NULL; | |
410 | } | |
411 | ||
87f0e418 LP |
412 | void unit_free(Unit *u) { |
413 | UnitDependency d; | |
414 | Iterator i; | |
415 | char *t; | |
416 | ||
417 | assert(u); | |
418 | ||
c2756a68 LP |
419 | if (u->manager->n_reloading <= 0) |
420 | unit_remove_transient(u); | |
421 | ||
c1e1601e LP |
422 | bus_unit_send_removed_signal(u); |
423 | ||
ac155bb8 | 424 | if (u->load_state != UNIT_STUB) |
a013b84b LP |
425 | if (UNIT_VTABLE(u)->done) |
426 | UNIT_VTABLE(u)->done(u); | |
427 | ||
a57f7e2c LP |
428 | unit_free_requires_mounts_for(u); |
429 | ||
ac155bb8 MS |
430 | SET_FOREACH(t, u->names, i) |
431 | hashmap_remove_value(u->manager->units, t, u); | |
87f0e418 | 432 | |
97e7d748 MS |
433 | if (u->job) { |
434 | Job *j = u->job; | |
435 | job_uninstall(j); | |
436 | job_free(j); | |
437 | } | |
964e0949 | 438 | |
e0209d83 MS |
439 | if (u->nop_job) { |
440 | Job *j = u->nop_job; | |
441 | job_uninstall(j); | |
442 | job_free(j); | |
443 | } | |
444 | ||
964e0949 | 445 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) |
ac155bb8 | 446 | bidi_set_free(u, u->dependencies[d]); |
964e0949 | 447 | |
ac155bb8 | 448 | if (u->type != _UNIT_TYPE_INVALID) |
71fda00f | 449 | LIST_REMOVE(units_by_type, u->manager->units_by_type[u->type], u); |
ef734fd6 | 450 | |
ac155bb8 | 451 | if (u->in_load_queue) |
71fda00f | 452 | LIST_REMOVE(load_queue, u->manager->load_queue, u); |
87f0e418 | 453 | |
ac155bb8 | 454 | if (u->in_dbus_queue) |
71fda00f | 455 | LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
c1e1601e | 456 | |
ac155bb8 | 457 | if (u->in_cleanup_queue) |
71fda00f | 458 | LIST_REMOVE(cleanup_queue, u->manager->cleanup_queue, u); |
23a177ef | 459 | |
ac155bb8 | 460 | if (u->in_gc_queue) { |
71fda00f | 461 | LIST_REMOVE(gc_queue, u->manager->gc_queue, u); |
ac155bb8 | 462 | u->manager->n_in_gc_queue--; |
701cc384 LP |
463 | } |
464 | ||
4ad49000 | 465 | if (u->in_cgroup_queue) |
71fda00f | 466 | LIST_REMOVE(cgroup_queue, u->manager->cgroup_queue, u); |
87f0e418 | 467 | |
72673e86 LP |
468 | if (u->cgroup_path) { |
469 | hashmap_remove(u->manager->cgroup_unit, u->cgroup_path); | |
470 | free(u->cgroup_path); | |
471 | } | |
472 | ||
ac155bb8 | 473 | free(u->description); |
49dbfa7b | 474 | strv_free(u->documentation); |
ac155bb8 | 475 | free(u->fragment_path); |
1b64d026 | 476 | free(u->source_path); |
ae7a7182 | 477 | strv_free(u->dropin_paths); |
ac155bb8 | 478 | free(u->instance); |
87f0e418 | 479 | |
ac155bb8 | 480 | set_free_free(u->names); |
87f0e418 | 481 | |
ac155bb8 | 482 | condition_free_list(u->conditions); |
52661efd | 483 | |
702a2d8f LP |
484 | unit_ref_unset(&u->slice); |
485 | ||
ac155bb8 MS |
486 | while (u->refs) |
487 | unit_ref_unset(u->refs); | |
57020a3a | 488 | |
87f0e418 LP |
489 | free(u); |
490 | } | |
491 | ||
492 | UnitActiveState unit_active_state(Unit *u) { | |
493 | assert(u); | |
494 | ||
ac155bb8 | 495 | if (u->load_state == UNIT_MERGED) |
6124958c LP |
496 | return unit_active_state(unit_follow_merge(u)); |
497 | ||
498 | /* After a reload it might happen that a unit is not correctly | |
499 | * loaded but still has a process around. That's why we won't | |
fdf20a31 | 500 | * shortcut failed loading to UNIT_INACTIVE_FAILED. */ |
87f0e418 LP |
501 | |
502 | return UNIT_VTABLE(u)->active_state(u); | |
503 | } | |
504 | ||
10a94420 LP |
505 | const char* unit_sub_state_to_string(Unit *u) { |
506 | assert(u); | |
507 | ||
508 | return UNIT_VTABLE(u)->sub_state_to_string(u); | |
509 | } | |
510 | ||
23a177ef LP |
511 | static void complete_move(Set **s, Set **other) { |
512 | assert(s); | |
513 | assert(other); | |
87f0e418 | 514 | |
23a177ef LP |
515 | if (!*other) |
516 | return; | |
87f0e418 LP |
517 | |
518 | if (*s) | |
23a177ef LP |
519 | set_move(*s, *other); |
520 | else { | |
521 | *s = *other; | |
522 | *other = NULL; | |
523 | } | |
524 | } | |
87f0e418 | 525 | |
23a177ef LP |
526 | static void merge_names(Unit *u, Unit *other) { |
527 | char *t; | |
528 | Iterator i; | |
87f0e418 | 529 | |
23a177ef LP |
530 | assert(u); |
531 | assert(other); | |
532 | ||
ac155bb8 | 533 | complete_move(&u->names, &other->names); |
23a177ef | 534 | |
ac155bb8 MS |
535 | set_free_free(other->names); |
536 | other->names = NULL; | |
537 | other->id = NULL; | |
23a177ef | 538 | |
ac155bb8 MS |
539 | SET_FOREACH(t, u->names, i) |
540 | assert_se(hashmap_replace(u->manager->units, t, u) == 0); | |
87f0e418 LP |
541 | } |
542 | ||
23a177ef LP |
543 | static void merge_dependencies(Unit *u, Unit *other, UnitDependency d) { |
544 | Iterator i; | |
545 | Unit *back; | |
87f0e418 | 546 | int r; |
23a177ef LP |
547 | |
548 | assert(u); | |
549 | assert(other); | |
550 | assert(d < _UNIT_DEPENDENCY_MAX); | |
551 | ||
83a95334 | 552 | /* Fix backwards pointers */ |
ac155bb8 | 553 | SET_FOREACH(back, other->dependencies[d], i) { |
23a177ef LP |
554 | UnitDependency k; |
555 | ||
e48614c4 ZJS |
556 | for (k = 0; k < _UNIT_DEPENDENCY_MAX; k++) { |
557 | r = set_remove_and_put(back->dependencies[k], other, u); | |
558 | if (r == -EEXIST) | |
559 | set_remove(back->dependencies[k], other); | |
560 | else | |
561 | assert(r >= 0 || r == -ENOENT); | |
562 | } | |
23a177ef LP |
563 | } |
564 | ||
ac155bb8 | 565 | complete_move(&u->dependencies[d], &other->dependencies[d]); |
23a177ef | 566 | |
ac155bb8 MS |
567 | set_free(other->dependencies[d]); |
568 | other->dependencies[d] = NULL; | |
23a177ef LP |
569 | } |
570 | ||
571 | int unit_merge(Unit *u, Unit *other) { | |
87f0e418 LP |
572 | UnitDependency d; |
573 | ||
574 | assert(u); | |
575 | assert(other); | |
ac155bb8 MS |
576 | assert(u->manager == other->manager); |
577 | assert(u->type != _UNIT_TYPE_INVALID); | |
87f0e418 | 578 | |
cc916967 LP |
579 | other = unit_follow_merge(other); |
580 | ||
23a177ef LP |
581 | if (other == u) |
582 | return 0; | |
583 | ||
ac155bb8 | 584 | if (u->type != other->type) |
9e2f7c11 LP |
585 | return -EINVAL; |
586 | ||
ac155bb8 | 587 | if (!u->instance != !other->instance) |
87f0e418 LP |
588 | return -EINVAL; |
589 | ||
ac155bb8 | 590 | if (other->load_state != UNIT_STUB && |
c2756a68 | 591 | other->load_state != UNIT_NOT_FOUND) |
23a177ef | 592 | return -EEXIST; |
87f0e418 | 593 | |
ac155bb8 | 594 | if (other->job) |
819e213f LP |
595 | return -EEXIST; |
596 | ||
e0209d83 MS |
597 | if (other->nop_job) |
598 | return -EEXIST; | |
599 | ||
fdf20a31 | 600 | if (!UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(other))) |
819e213f LP |
601 | return -EEXIST; |
602 | ||
87f0e418 | 603 | /* Merge names */ |
23a177ef | 604 | merge_names(u, other); |
87f0e418 | 605 | |
57020a3a | 606 | /* Redirect all references */ |
ac155bb8 MS |
607 | while (other->refs) |
608 | unit_ref_set(other->refs, u); | |
57020a3a | 609 | |
87f0e418 LP |
610 | /* Merge dependencies */ |
611 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) | |
23a177ef | 612 | merge_dependencies(u, other, d); |
87f0e418 | 613 | |
ac155bb8 MS |
614 | other->load_state = UNIT_MERGED; |
615 | other->merged_into = u; | |
23a177ef | 616 | |
3616a49c LP |
617 | /* If there is still some data attached to the other node, we |
618 | * don't need it anymore, and can free it. */ | |
ac155bb8 | 619 | if (other->load_state != UNIT_STUB) |
3616a49c LP |
620 | if (UNIT_VTABLE(other)->done) |
621 | UNIT_VTABLE(other)->done(other); | |
622 | ||
623 | unit_add_to_dbus_queue(u); | |
23a177ef LP |
624 | unit_add_to_cleanup_queue(other); |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
629 | int unit_merge_by_name(Unit *u, const char *name) { | |
630 | Unit *other; | |
9e2f7c11 | 631 | int r; |
68eda4bd | 632 | _cleanup_free_ char *s = NULL; |
23a177ef LP |
633 | |
634 | assert(u); | |
635 | assert(name); | |
636 | ||
9e2f7c11 | 637 | if (unit_name_is_template(name)) { |
ac155bb8 | 638 | if (!u->instance) |
9e2f7c11 LP |
639 | return -EINVAL; |
640 | ||
e48614c4 ZJS |
641 | s = unit_name_replace_instance(name, u->instance); |
642 | if (!s) | |
9e2f7c11 LP |
643 | return -ENOMEM; |
644 | ||
645 | name = s; | |
646 | } | |
647 | ||
c2756a68 LP |
648 | other = manager_get_unit(u->manager, name); |
649 | if (!other) | |
9e2f7c11 LP |
650 | r = unit_add_name(u, name); |
651 | else | |
652 | r = unit_merge(u, other); | |
23a177ef | 653 | |
9e2f7c11 | 654 | return r; |
23a177ef LP |
655 | } |
656 | ||
657 | Unit* unit_follow_merge(Unit *u) { | |
658 | assert(u); | |
659 | ||
ac155bb8 MS |
660 | while (u->load_state == UNIT_MERGED) |
661 | assert_se(u = u->merged_into); | |
23a177ef LP |
662 | |
663 | return u; | |
664 | } | |
665 | ||
666 | int unit_add_exec_dependencies(Unit *u, ExecContext *c) { | |
667 | int r; | |
668 | ||
669 | assert(u); | |
670 | assert(c); | |
671 | ||
ecc6e2b8 LP |
672 | if (c->std_output != EXEC_OUTPUT_KMSG && |
673 | c->std_output != EXEC_OUTPUT_SYSLOG && | |
706343f4 | 674 | c->std_output != EXEC_OUTPUT_JOURNAL && |
28dbc1e8 LP |
675 | c->std_output != EXEC_OUTPUT_KMSG_AND_CONSOLE && |
676 | c->std_output != EXEC_OUTPUT_SYSLOG_AND_CONSOLE && | |
706343f4 | 677 | c->std_output != EXEC_OUTPUT_JOURNAL_AND_CONSOLE && |
ecc6e2b8 | 678 | c->std_error != EXEC_OUTPUT_KMSG && |
085c98af | 679 | c->std_error != EXEC_OUTPUT_SYSLOG && |
706343f4 | 680 | c->std_error != EXEC_OUTPUT_JOURNAL && |
085c98af | 681 | c->std_error != EXEC_OUTPUT_KMSG_AND_CONSOLE && |
706343f4 | 682 | c->std_error != EXEC_OUTPUT_JOURNAL_AND_CONSOLE && |
28dbc1e8 | 683 | c->std_error != EXEC_OUTPUT_SYSLOG_AND_CONSOLE) |
23a177ef LP |
684 | return 0; |
685 | ||
686 | /* If syslog or kernel logging is requested, make sure our own | |
687 | * logging daemon is run first. */ | |
688 | ||
9d246da3 MS |
689 | if (u->manager->running_as == SYSTEMD_SYSTEM) { |
690 | r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_JOURNALD_SOCKET, NULL, true); | |
691 | if (r < 0) | |
23a177ef | 692 | return r; |
9d246da3 | 693 | } |
23a177ef | 694 | |
87f0e418 LP |
695 | return 0; |
696 | } | |
697 | ||
87f0e418 LP |
698 | const char *unit_description(Unit *u) { |
699 | assert(u); | |
700 | ||
ac155bb8 MS |
701 | if (u->description) |
702 | return u->description; | |
87f0e418 | 703 | |
ac155bb8 | 704 | return strna(u->id); |
87f0e418 LP |
705 | } |
706 | ||
707 | void unit_dump(Unit *u, FILE *f, const char *prefix) { | |
49dbfa7b | 708 | char *t, **j; |
87f0e418 LP |
709 | UnitDependency d; |
710 | Iterator i; | |
68eda4bd | 711 | _cleanup_free_ char *p2 = NULL; |
47be870b | 712 | const char *prefix2; |
173e3821 LP |
713 | char |
714 | timestamp1[FORMAT_TIMESTAMP_MAX], | |
715 | timestamp2[FORMAT_TIMESTAMP_MAX], | |
716 | timestamp3[FORMAT_TIMESTAMP_MAX], | |
faf919f1 LP |
717 | timestamp4[FORMAT_TIMESTAMP_MAX], |
718 | timespan[FORMAT_TIMESPAN_MAX]; | |
a7f241db | 719 | Unit *following; |
eeaedb7c LP |
720 | _cleanup_set_free_ Set *following_set = NULL; |
721 | int r; | |
87f0e418 LP |
722 | |
723 | assert(u); | |
ac155bb8 | 724 | assert(u->type >= 0); |
87f0e418 LP |
725 | |
726 | if (!prefix) | |
727 | prefix = ""; | |
47be870b LP |
728 | p2 = strappend(prefix, "\t"); |
729 | prefix2 = p2 ? p2 : prefix; | |
87f0e418 LP |
730 | |
731 | fprintf(f, | |
40d50879 | 732 | "%s-> Unit %s:\n" |
87f0e418 | 733 | "%s\tDescription: %s\n" |
9e2f7c11 | 734 | "%s\tInstance: %s\n" |
87f0e418 | 735 | "%s\tUnit Load State: %s\n" |
2fad8195 | 736 | "%s\tUnit Active State: %s\n" |
173e3821 | 737 | "%s\tInactive Exit Timestamp: %s\n" |
2fad8195 | 738 | "%s\tActive Enter Timestamp: %s\n" |
701cc384 | 739 | "%s\tActive Exit Timestamp: %s\n" |
173e3821 | 740 | "%s\tInactive Enter Timestamp: %s\n" |
45fb0699 | 741 | "%s\tGC Check Good: %s\n" |
9444b1f2 | 742 | "%s\tNeed Daemon Reload: %s\n" |
c2756a68 | 743 | "%s\tTransient: %s\n" |
4ad49000 LP |
744 | "%s\tSlice: %s\n" |
745 | "%s\tCGroup: %s\n" | |
746 | "%s\tCGroup realized: %s\n" | |
6414b7c9 DS |
747 | "%s\tCGroup mask: 0x%x\n" |
748 | "%s\tCGroup members mask: 0x%x\n", | |
ac155bb8 | 749 | prefix, u->id, |
87f0e418 | 750 | prefix, unit_description(u), |
ac155bb8 MS |
751 | prefix, strna(u->instance), |
752 | prefix, unit_load_state_to_string(u->load_state), | |
2fad8195 | 753 | prefix, unit_active_state_to_string(unit_active_state(u)), |
ac155bb8 MS |
754 | prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->inactive_exit_timestamp.realtime)), |
755 | prefix, strna(format_timestamp(timestamp2, sizeof(timestamp2), u->active_enter_timestamp.realtime)), | |
756 | prefix, strna(format_timestamp(timestamp3, sizeof(timestamp3), u->active_exit_timestamp.realtime)), | |
757 | prefix, strna(format_timestamp(timestamp4, sizeof(timestamp4), u->inactive_enter_timestamp.realtime)), | |
45fb0699 | 758 | prefix, yes_no(unit_check_gc(u)), |
9444b1f2 | 759 | prefix, yes_no(unit_need_daemon_reload(u)), |
c2756a68 | 760 | prefix, yes_no(u->transient), |
4ad49000 LP |
761 | prefix, strna(unit_slice_name(u)), |
762 | prefix, strna(u->cgroup_path), | |
763 | prefix, yes_no(u->cgroup_realized), | |
6414b7c9 DS |
764 | prefix, u->cgroup_mask, |
765 | prefix, u->cgroup_members_mask); | |
0301abf4 | 766 | |
ac155bb8 | 767 | SET_FOREACH(t, u->names, i) |
87f0e418 LP |
768 | fprintf(f, "%s\tName: %s\n", prefix, t); |
769 | ||
49dbfa7b LP |
770 | STRV_FOREACH(j, u->documentation) |
771 | fprintf(f, "%s\tDocumentation: %s\n", prefix, *j); | |
772 | ||
eeaedb7c LP |
773 | following = unit_following(u); |
774 | if (following) | |
ac155bb8 | 775 | fprintf(f, "%s\tFollowing: %s\n", prefix, following->id); |
8fe914ec | 776 | |
eeaedb7c LP |
777 | r = unit_following_set(u, &following_set); |
778 | if (r >= 0) { | |
779 | Unit *other; | |
780 | ||
781 | SET_FOREACH(other, following_set, i) | |
782 | fprintf(f, "%s\tFollowing Set Member: %s\n", prefix, other->id); | |
783 | } | |
784 | ||
ac155bb8 MS |
785 | if (u->fragment_path) |
786 | fprintf(f, "%s\tFragment Path: %s\n", prefix, u->fragment_path); | |
23a177ef | 787 | |
1b64d026 LP |
788 | if (u->source_path) |
789 | fprintf(f, "%s\tSource Path: %s\n", prefix, u->source_path); | |
790 | ||
ae7a7182 | 791 | STRV_FOREACH(j, u->dropin_paths) |
2875e22b | 792 | fprintf(f, "%s\tDropIn Path: %s\n", prefix, *j); |
ae7a7182 | 793 | |
ac155bb8 | 794 | if (u->job_timeout > 0) |
2fa4092c | 795 | fprintf(f, "%s\tJob Timeout: %s\n", prefix, format_timespan(timespan, sizeof(timespan), u->job_timeout, 0)); |
faf919f1 | 796 | |
ac155bb8 | 797 | condition_dump_list(u->conditions, f, prefix); |
52661efd | 798 | |
ac155bb8 | 799 | if (dual_timestamp_is_set(&u->condition_timestamp)) |
2791a8f8 LP |
800 | fprintf(f, |
801 | "%s\tCondition Timestamp: %s\n" | |
802 | "%s\tCondition Result: %s\n", | |
ac155bb8 MS |
803 | prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->condition_timestamp.realtime)), |
804 | prefix, yes_no(u->condition_result)); | |
2791a8f8 | 805 | |
87f0e418 LP |
806 | for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) { |
807 | Unit *other; | |
808 | ||
ac155bb8 MS |
809 | SET_FOREACH(other, u->dependencies[d], i) |
810 | fprintf(f, "%s\t%s: %s\n", prefix, unit_dependency_to_string(d), other->id); | |
87f0e418 LP |
811 | } |
812 | ||
7c8fa05c | 813 | if (!strv_isempty(u->requires_mounts_for)) { |
7c8fa05c LP |
814 | fprintf(f, |
815 | "%s\tRequiresMountsFor:", prefix); | |
816 | ||
817 | STRV_FOREACH(j, u->requires_mounts_for) | |
818 | fprintf(f, " %s", *j); | |
819 | ||
820 | fputs("\n", f); | |
821 | } | |
822 | ||
ac155bb8 | 823 | if (u->load_state == UNIT_LOADED) { |
ab1f0633 | 824 | |
b0650475 | 825 | fprintf(f, |
a40eb732 | 826 | "%s\tStopWhenUnneeded: %s\n" |
b5e9dba8 LP |
827 | "%s\tRefuseManualStart: %s\n" |
828 | "%s\tRefuseManualStop: %s\n" | |
222ae6a8 | 829 | "%s\tDefaultDependencies: %s\n" |
d420282b | 830 | "%s\tOnFailureJobMode: %s\n" |
7a6000a6 LP |
831 | "%s\tIgnoreOnIsolate: %s\n" |
832 | "%s\tIgnoreOnSnapshot: %s\n", | |
ac155bb8 MS |
833 | prefix, yes_no(u->stop_when_unneeded), |
834 | prefix, yes_no(u->refuse_manual_start), | |
835 | prefix, yes_no(u->refuse_manual_stop), | |
836 | prefix, yes_no(u->default_dependencies), | |
d420282b | 837 | prefix, job_mode_to_string(u->on_failure_job_mode), |
ac155bb8 MS |
838 | prefix, yes_no(u->ignore_on_isolate), |
839 | prefix, yes_no(u->ignore_on_snapshot)); | |
840 | ||
23a177ef LP |
841 | if (UNIT_VTABLE(u)->dump) |
842 | UNIT_VTABLE(u)->dump(u, f, prefix2); | |
b0650475 | 843 | |
ac155bb8 | 844 | } else if (u->load_state == UNIT_MERGED) |
b0650475 LP |
845 | fprintf(f, |
846 | "%s\tMerged into: %s\n", | |
ac155bb8 MS |
847 | prefix, u->merged_into->id); |
848 | else if (u->load_state == UNIT_ERROR) | |
849 | fprintf(f, "%s\tLoad Error Code: %s\n", prefix, strerror(-u->load_error)); | |
8821a00f | 850 | |
87f0e418 | 851 | |
ac155bb8 MS |
852 | if (u->job) |
853 | job_dump(u->job, f, prefix2); | |
87f0e418 | 854 | |
e0209d83 MS |
855 | if (u->nop_job) |
856 | job_dump(u->nop_job, f, prefix2); | |
857 | ||
87f0e418 LP |
858 | } |
859 | ||
860 | /* Common implementation for multiple backends */ | |
e537352b | 861 | int unit_load_fragment_and_dropin(Unit *u) { |
23a177ef LP |
862 | int r; |
863 | ||
864 | assert(u); | |
23a177ef | 865 | |
e48614c4 | 866 | /* Load a .{service,socket,...} file */ |
4ad49000 LP |
867 | r = unit_load_fragment(u); |
868 | if (r < 0) | |
23a177ef LP |
869 | return r; |
870 | ||
ac155bb8 | 871 | if (u->load_state == UNIT_STUB) |
23a177ef LP |
872 | return -ENOENT; |
873 | ||
874 | /* Load drop-in directory data */ | |
4ad49000 LP |
875 | r = unit_load_dropin(unit_follow_merge(u)); |
876 | if (r < 0) | |
23a177ef LP |
877 | return r; |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | /* Common implementation for multiple backends */ | |
e537352b | 883 | int unit_load_fragment_and_dropin_optional(Unit *u) { |
23a177ef | 884 | int r; |
87f0e418 LP |
885 | |
886 | assert(u); | |
887 | ||
23a177ef LP |
888 | /* Same as unit_load_fragment_and_dropin(), but whether |
889 | * something can be loaded or not doesn't matter. */ | |
890 | ||
891 | /* Load a .service file */ | |
4ad49000 LP |
892 | r = unit_load_fragment(u); |
893 | if (r < 0) | |
87f0e418 LP |
894 | return r; |
895 | ||
ac155bb8 MS |
896 | if (u->load_state == UNIT_STUB) |
897 | u->load_state = UNIT_LOADED; | |
d46de8a1 | 898 | |
87f0e418 | 899 | /* Load drop-in directory data */ |
4ad49000 LP |
900 | r = unit_load_dropin(unit_follow_merge(u)); |
901 | if (r < 0) | |
87f0e418 LP |
902 | return r; |
903 | ||
23a177ef | 904 | return 0; |
87f0e418 LP |
905 | } |
906 | ||
bba34eed | 907 | int unit_add_default_target_dependency(Unit *u, Unit *target) { |
98bc2000 LP |
908 | assert(u); |
909 | assert(target); | |
910 | ||
ac155bb8 | 911 | if (target->type != UNIT_TARGET) |
98bc2000 LP |
912 | return 0; |
913 | ||
35b8ca3a | 914 | /* Only add the dependency if both units are loaded, so that |
bba34eed | 915 | * that loop check below is reliable */ |
ac155bb8 MS |
916 | if (u->load_state != UNIT_LOADED || |
917 | target->load_state != UNIT_LOADED) | |
bba34eed LP |
918 | return 0; |
919 | ||
21256a2b LP |
920 | /* If either side wants no automatic dependencies, then let's |
921 | * skip this */ | |
ac155bb8 MS |
922 | if (!u->default_dependencies || |
923 | !target->default_dependencies) | |
21256a2b LP |
924 | return 0; |
925 | ||
98bc2000 | 926 | /* Don't create loops */ |
ac155bb8 | 927 | if (set_get(target->dependencies[UNIT_BEFORE], u)) |
98bc2000 LP |
928 | return 0; |
929 | ||
930 | return unit_add_dependency(target, UNIT_AFTER, u, true); | |
931 | } | |
932 | ||
933 | static int unit_add_default_dependencies(Unit *u) { | |
a016b922 | 934 | |
21256a2b LP |
935 | static const UnitDependency deps[] = { |
936 | UNIT_REQUIRED_BY, | |
937 | UNIT_REQUIRED_BY_OVERRIDABLE, | |
938 | UNIT_WANTED_BY, | |
939 | UNIT_BOUND_BY | |
940 | }; | |
941 | ||
bba34eed | 942 | Unit *target; |
98bc2000 LP |
943 | Iterator i; |
944 | int r; | |
21256a2b | 945 | unsigned k; |
98bc2000 LP |
946 | |
947 | assert(u); | |
948 | ||
21256a2b | 949 | for (k = 0; k < ELEMENTSOF(deps); k++) |
a016b922 LP |
950 | SET_FOREACH(target, u->dependencies[deps[k]], i) { |
951 | r = unit_add_default_target_dependency(u, target); | |
952 | if (r < 0) | |
21256a2b | 953 | return r; |
a016b922 LP |
954 | } |
955 | ||
4ad49000 LP |
956 | if (u->default_dependencies && unit_get_cgroup_context(u)) { |
957 | if (UNIT_ISSET(u->slice)) | |
958 | r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_WANTS, UNIT_DEREF(u->slice), true); | |
959 | else | |
960 | r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, SPECIAL_ROOT_SLICE, NULL, true); | |
961 | ||
a016b922 LP |
962 | if (r < 0) |
963 | return r; | |
964 | } | |
b81884e7 | 965 | |
98bc2000 LP |
966 | return 0; |
967 | } | |
968 | ||
9588bc32 LP |
969 | static int unit_add_mount_links(Unit *u) { |
970 | char **i; | |
971 | int r; | |
972 | ||
973 | assert(u); | |
974 | ||
975 | STRV_FOREACH(i, u->requires_mounts_for) { | |
976 | char prefix[strlen(*i) + 1]; | |
977 | ||
978 | PATH_FOREACH_PREFIX_MORE(prefix, *i) { | |
979 | Unit *m; | |
980 | ||
981 | r = manager_get_unit_by_path(u->manager, prefix, ".mount", &m); | |
982 | if (r < 0) | |
983 | return r; | |
984 | if (r == 0) | |
985 | continue; | |
986 | if (m == u) | |
987 | continue; | |
988 | ||
989 | if (m->load_state != UNIT_LOADED) | |
990 | continue; | |
991 | ||
992 | r = unit_add_dependency(u, UNIT_AFTER, m, true); | |
993 | if (r < 0) | |
994 | return r; | |
995 | ||
996 | if (m->fragment_path) { | |
997 | r = unit_add_dependency(u, UNIT_REQUIRES, m, true); | |
998 | if (r < 0) | |
999 | return r; | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | return 0; | |
1005 | } | |
1006 | ||
87f0e418 LP |
1007 | int unit_load(Unit *u) { |
1008 | int r; | |
1009 | ||
1010 | assert(u); | |
1011 | ||
ac155bb8 | 1012 | if (u->in_load_queue) { |
71fda00f | 1013 | LIST_REMOVE(load_queue, u->manager->load_queue, u); |
ac155bb8 | 1014 | u->in_load_queue = false; |
87f0e418 LP |
1015 | } |
1016 | ||
ac155bb8 | 1017 | if (u->type == _UNIT_TYPE_INVALID) |
e537352b LP |
1018 | return -EINVAL; |
1019 | ||
ac155bb8 | 1020 | if (u->load_state != UNIT_STUB) |
87f0e418 LP |
1021 | return 0; |
1022 | ||
c2756a68 LP |
1023 | if (UNIT_VTABLE(u)->load) { |
1024 | r = UNIT_VTABLE(u)->load(u); | |
1025 | if (r < 0) | |
87f0e418 | 1026 | goto fail; |
c2756a68 | 1027 | } |
23a177ef | 1028 | |
ac155bb8 | 1029 | if (u->load_state == UNIT_STUB) { |
23a177ef LP |
1030 | r = -ENOENT; |
1031 | goto fail; | |
1032 | } | |
1033 | ||
7c8fa05c | 1034 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
1035 | |
1036 | if (u->default_dependencies) { | |
1037 | r = unit_add_default_dependencies(u); | |
1038 | if (r < 0) | |
1039 | goto fail; | |
1040 | } | |
1041 | ||
6414b7c9 DS |
1042 | unit_update_member_masks(u); |
1043 | ||
7c8fa05c LP |
1044 | r = unit_add_mount_links(u); |
1045 | if (r < 0) | |
c2756a68 | 1046 | goto fail; |
7c8fa05c | 1047 | |
d420282b | 1048 | if (u->on_failure_job_mode == JOB_ISOLATE && |
c2756a68 | 1049 | set_size(u->dependencies[UNIT_ON_FAILURE]) > 1) { |
f68319bb | 1050 | |
c2756a68 | 1051 | log_error_unit(u->id, |
d420282b | 1052 | "More than one OnFailure= dependencies specified for %s but OnFailureJobMode=isolate set. Refusing.", u->id); |
f68319bb | 1053 | |
c2756a68 LP |
1054 | r = -EINVAL; |
1055 | goto fail; | |
1056 | } | |
f68319bb LP |
1057 | } |
1058 | ||
ac155bb8 | 1059 | assert((u->load_state != UNIT_MERGED) == !u->merged_into); |
23a177ef LP |
1060 | |
1061 | unit_add_to_dbus_queue(unit_follow_merge(u)); | |
701cc384 | 1062 | unit_add_to_gc_queue(u); |
87f0e418 | 1063 | |
87f0e418 LP |
1064 | return 0; |
1065 | ||
1066 | fail: | |
c2756a68 | 1067 | u->load_state = u->load_state == UNIT_STUB ? UNIT_NOT_FOUND : UNIT_ERROR; |
ac155bb8 | 1068 | u->load_error = r; |
c1e1601e | 1069 | unit_add_to_dbus_queue(u); |
9a46fc3b | 1070 | unit_add_to_gc_queue(u); |
23a177ef | 1071 | |
c1b6628d ZJS |
1072 | log_debug_unit(u->id, "Failed to load configuration for %s: %s", |
1073 | u->id, strerror(-r)); | |
23a177ef | 1074 | |
87f0e418 LP |
1075 | return r; |
1076 | } | |
1077 | ||
9588bc32 | 1078 | static bool unit_condition_test(Unit *u) { |
90bbc946 LP |
1079 | assert(u); |
1080 | ||
ac155bb8 | 1081 | dual_timestamp_get(&u->condition_timestamp); |
4b744dfa | 1082 | u->condition_result = condition_test_list(u->id, u->conditions); |
90bbc946 | 1083 | |
ac155bb8 | 1084 | return u->condition_result; |
90bbc946 LP |
1085 | } |
1086 | ||
44a6b1b6 | 1087 | _pure_ static const char* unit_get_status_message_format(Unit *u, JobType t) { |
c6918296 | 1088 | const UnitStatusMessageFormats *format_table; |
877d54e9 LP |
1089 | |
1090 | assert(u); | |
1091 | assert(t >= 0); | |
1092 | assert(t < _JOB_TYPE_MAX); | |
1093 | ||
1094 | if (t != JOB_START && t != JOB_STOP) | |
1095 | return NULL; | |
c6918296 MS |
1096 | |
1097 | format_table = &UNIT_VTABLE(u)->status_message_formats; | |
1098 | if (!format_table) | |
877d54e9 LP |
1099 | return NULL; |
1100 | ||
1101 | return format_table->starting_stopping[t == JOB_STOP]; | |
1102 | } | |
1103 | ||
44a6b1b6 | 1104 | _pure_ static const char *unit_get_status_message_format_try_harder(Unit *u, JobType t) { |
877d54e9 LP |
1105 | const char *format; |
1106 | ||
1107 | assert(u); | |
1108 | assert(t >= 0); | |
1109 | assert(t < _JOB_TYPE_MAX); | |
1110 | ||
1111 | format = unit_get_status_message_format(u, t); | |
1112 | if (format) | |
1113 | return format; | |
1114 | ||
1115 | /* Return generic strings */ | |
1116 | if (t == JOB_START) | |
1117 | return "Starting %s."; | |
1118 | else if (t == JOB_STOP) | |
1119 | return "Stopping %s."; | |
1120 | else if (t == JOB_RELOAD) | |
1121 | return "Reloading %s."; | |
1122 | ||
1123 | return NULL; | |
1124 | } | |
1125 | ||
1126 | static void unit_status_print_starting_stopping(Unit *u, JobType t) { | |
1127 | const char *format; | |
1128 | ||
1129 | assert(u); | |
1130 | ||
1131 | /* We only print status messages for selected units on | |
1132 | * selected operations. */ | |
c6918296 | 1133 | |
877d54e9 | 1134 | format = unit_get_status_message_format(u, t); |
c6918296 MS |
1135 | if (!format) |
1136 | return; | |
1137 | ||
49b1d377 | 1138 | unit_status_printf(u, "", format); |
c6918296 MS |
1139 | } |
1140 | ||
877d54e9 LP |
1141 | #pragma GCC diagnostic push |
1142 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
1143 | static void unit_status_log_starting_stopping_reloading(Unit *u, JobType t) { | |
1144 | const char *format; | |
1145 | char buf[LINE_MAX]; | |
1146 | sd_id128_t mid; | |
1147 | ||
1148 | assert(u); | |
1149 | ||
1150 | if (t != JOB_START && t != JOB_STOP && t != JOB_RELOAD) | |
1151 | return; | |
1152 | ||
81270860 LP |
1153 | if (log_on_console()) |
1154 | return; | |
1155 | ||
877d54e9 LP |
1156 | /* We log status messages for all units and all operations. */ |
1157 | ||
1158 | format = unit_get_status_message_format_try_harder(u, t); | |
1159 | if (!format) | |
1160 | return; | |
1161 | ||
1162 | snprintf(buf, sizeof(buf), format, unit_description(u)); | |
1163 | char_array_0(buf); | |
1164 | ||
1165 | mid = t == JOB_START ? SD_MESSAGE_UNIT_STARTING : | |
1166 | t == JOB_STOP ? SD_MESSAGE_UNIT_STOPPING : | |
1167 | SD_MESSAGE_UNIT_RELOADING; | |
1168 | ||
bbc9006e | 1169 | log_struct_unit(LOG_INFO, |
c1b6628d ZJS |
1170 | u->id, |
1171 | MESSAGE_ID(mid), | |
1172 | "MESSAGE=%s", buf, | |
1173 | NULL); | |
877d54e9 LP |
1174 | } |
1175 | #pragma GCC diagnostic pop | |
1176 | ||
87f0e418 | 1177 | /* Errors: |
d5159713 LP |
1178 | * -EBADR: This unit type does not support starting. |
1179 | * -EALREADY: Unit is already started. | |
1180 | * -EAGAIN: An operation is already in progress. Retry later. | |
1181 | * -ECANCELED: Too many requests for now. | |
87f0e418 LP |
1182 | */ |
1183 | int unit_start(Unit *u) { | |
1184 | UnitActiveState state; | |
92ab323c | 1185 | Unit *following; |
87f0e418 LP |
1186 | |
1187 | assert(u); | |
1188 | ||
ac155bb8 | 1189 | if (u->load_state != UNIT_LOADED) |
6124958c LP |
1190 | return -EINVAL; |
1191 | ||
a82e5507 LP |
1192 | /* If this is already started, then this will succeed. Note |
1193 | * that this will even succeed if this unit is not startable | |
1194 | * by the user. This is relied on to detect when we need to | |
1195 | * wait for units and when waiting is finished. */ | |
87f0e418 LP |
1196 | state = unit_active_state(u); |
1197 | if (UNIT_IS_ACTIVE_OR_RELOADING(state)) | |
1198 | return -EALREADY; | |
1199 | ||
a82e5507 LP |
1200 | /* If the conditions failed, don't do anything at all. If we |
1201 | * already are activating this call might still be useful to | |
1202 | * speed up activation in case there is some hold-off time, | |
1203 | * but we don't want to recheck the condition in that case. */ | |
1204 | if (state != UNIT_ACTIVATING && | |
1205 | !unit_condition_test(u)) { | |
c1b6628d | 1206 | log_debug_unit(u->id, "Starting of %s requested but condition failed. Ignoring.", u->id); |
52661efd LP |
1207 | return -EALREADY; |
1208 | } | |
1209 | ||
92ab323c | 1210 | /* Forward to the main object, if we aren't it. */ |
52990c2e ZJS |
1211 | following = unit_following(u); |
1212 | if (following) { | |
c1b6628d ZJS |
1213 | log_debug_unit(u->id, "Redirecting start request from %s to %s.", |
1214 | u->id, following->id); | |
92ab323c LP |
1215 | return unit_start(following); |
1216 | } | |
1217 | ||
877d54e9 LP |
1218 | unit_status_log_starting_stopping_reloading(u, JOB_START); |
1219 | unit_status_print_starting_stopping(u, JOB_START); | |
c6918296 | 1220 | |
92ab323c LP |
1221 | /* If it is stopped, but we cannot start it, then fail */ |
1222 | if (!UNIT_VTABLE(u)->start) | |
1223 | return -EBADR; | |
1224 | ||
87f0e418 LP |
1225 | /* We don't suppress calls to ->start() here when we are |
1226 | * already starting, to allow this request to be used as a | |
1227 | * "hurry up" call, for example when the unit is in some "auto | |
1228 | * restart" state where it waits for a holdoff timer to elapse | |
1229 | * before it will start again. */ | |
1230 | ||
c1e1601e | 1231 | unit_add_to_dbus_queue(u); |
9e58ff9c | 1232 | |
87f0e418 LP |
1233 | return UNIT_VTABLE(u)->start(u); |
1234 | } | |
1235 | ||
1236 | bool unit_can_start(Unit *u) { | |
1237 | assert(u); | |
1238 | ||
1239 | return !!UNIT_VTABLE(u)->start; | |
1240 | } | |
1241 | ||
2528a7a6 LP |
1242 | bool unit_can_isolate(Unit *u) { |
1243 | assert(u); | |
1244 | ||
1245 | return unit_can_start(u) && | |
ac155bb8 | 1246 | u->allow_isolate; |
2528a7a6 LP |
1247 | } |
1248 | ||
87f0e418 LP |
1249 | /* Errors: |
1250 | * -EBADR: This unit type does not support stopping. | |
1251 | * -EALREADY: Unit is already stopped. | |
1252 | * -EAGAIN: An operation is already in progress. Retry later. | |
1253 | */ | |
1254 | int unit_stop(Unit *u) { | |
1255 | UnitActiveState state; | |
92ab323c | 1256 | Unit *following; |
87f0e418 LP |
1257 | |
1258 | assert(u); | |
1259 | ||
87f0e418 | 1260 | state = unit_active_state(u); |
fdf20a31 | 1261 | if (UNIT_IS_INACTIVE_OR_FAILED(state)) |
87f0e418 LP |
1262 | return -EALREADY; |
1263 | ||
92ab323c | 1264 | if ((following = unit_following(u))) { |
c1b6628d ZJS |
1265 | log_debug_unit(u->id, "Redirecting stop request from %s to %s.", |
1266 | u->id, following->id); | |
92ab323c LP |
1267 | return unit_stop(following); |
1268 | } | |
1269 | ||
877d54e9 LP |
1270 | unit_status_log_starting_stopping_reloading(u, JOB_STOP); |
1271 | unit_status_print_starting_stopping(u, JOB_STOP); | |
c6918296 | 1272 | |
7898b0cf LP |
1273 | if (!UNIT_VTABLE(u)->stop) |
1274 | return -EBADR; | |
1275 | ||
c1e1601e | 1276 | unit_add_to_dbus_queue(u); |
9e58ff9c | 1277 | |
87f0e418 LP |
1278 | return UNIT_VTABLE(u)->stop(u); |
1279 | } | |
1280 | ||
1281 | /* Errors: | |
1282 | * -EBADR: This unit type does not support reloading. | |
1283 | * -ENOEXEC: Unit is not started. | |
1284 | * -EAGAIN: An operation is already in progress. Retry later. | |
1285 | */ | |
1286 | int unit_reload(Unit *u) { | |
1287 | UnitActiveState state; | |
92ab323c | 1288 | Unit *following; |
87f0e418 LP |
1289 | |
1290 | assert(u); | |
1291 | ||
ac155bb8 | 1292 | if (u->load_state != UNIT_LOADED) |
6124958c LP |
1293 | return -EINVAL; |
1294 | ||
87f0e418 LP |
1295 | if (!unit_can_reload(u)) |
1296 | return -EBADR; | |
1297 | ||
1298 | state = unit_active_state(u); | |
e364ad06 | 1299 | if (state == UNIT_RELOADING) |
87f0e418 LP |
1300 | return -EALREADY; |
1301 | ||
e364ad06 | 1302 | if (state != UNIT_ACTIVE) |
87f0e418 LP |
1303 | return -ENOEXEC; |
1304 | ||
e48614c4 ZJS |
1305 | following = unit_following(u); |
1306 | if (following) { | |
c1b6628d ZJS |
1307 | log_debug_unit(u->id, "Redirecting reload request from %s to %s.", |
1308 | u->id, following->id); | |
92ab323c LP |
1309 | return unit_reload(following); |
1310 | } | |
1311 | ||
877d54e9 LP |
1312 | unit_status_log_starting_stopping_reloading(u, JOB_RELOAD); |
1313 | ||
c1e1601e | 1314 | unit_add_to_dbus_queue(u); |
87f0e418 LP |
1315 | return UNIT_VTABLE(u)->reload(u); |
1316 | } | |
1317 | ||
1318 | bool unit_can_reload(Unit *u) { | |
1319 | assert(u); | |
1320 | ||
1321 | if (!UNIT_VTABLE(u)->reload) | |
1322 | return false; | |
1323 | ||
1324 | if (!UNIT_VTABLE(u)->can_reload) | |
1325 | return true; | |
1326 | ||
1327 | return UNIT_VTABLE(u)->can_reload(u); | |
1328 | } | |
1329 | ||
b4a16b7b | 1330 | static void unit_check_unneeded(Unit *u) { |
f3bff0eb LP |
1331 | Iterator i; |
1332 | Unit *other; | |
1333 | ||
1334 | assert(u); | |
1335 | ||
1336 | /* If this service shall be shut down when unneeded then do | |
1337 | * so. */ | |
1338 | ||
ac155bb8 | 1339 | if (!u->stop_when_unneeded) |
f3bff0eb LP |
1340 | return; |
1341 | ||
1342 | if (!UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) | |
1343 | return; | |
1344 | ||
ac155bb8 | 1345 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i) |
31afa0a4 | 1346 | if (unit_active_or_pending(other)) |
f3bff0eb LP |
1347 | return; |
1348 | ||
ac155bb8 | 1349 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) |
31afa0a4 | 1350 | if (unit_active_or_pending(other)) |
f3bff0eb LP |
1351 | return; |
1352 | ||
ac155bb8 | 1353 | SET_FOREACH(other, u->dependencies[UNIT_WANTED_BY], i) |
31afa0a4 | 1354 | if (unit_active_or_pending(other)) |
f3bff0eb LP |
1355 | return; |
1356 | ||
ac155bb8 | 1357 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
31afa0a4 | 1358 | if (unit_active_or_pending(other)) |
b81884e7 LP |
1359 | return; |
1360 | ||
c1b6628d | 1361 | log_info_unit(u->id, "Service %s is not needed anymore. Stopping.", u->id); |
f3bff0eb LP |
1362 | |
1363 | /* Ok, nobody needs us anymore. Sniff. Then let's commit suicide */ | |
ac155bb8 | 1364 | manager_add_job(u->manager, JOB_STOP, u, JOB_FAIL, true, NULL, NULL); |
f3bff0eb LP |
1365 | } |
1366 | ||
87f0e418 LP |
1367 | static void retroactively_start_dependencies(Unit *u) { |
1368 | Iterator i; | |
1369 | Unit *other; | |
1370 | ||
1371 | assert(u); | |
1372 | assert(UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))); | |
1373 | ||
ac155bb8 MS |
1374 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES], i) |
1375 | if (!set_get(u->dependencies[UNIT_AFTER], other) && | |
b81884e7 | 1376 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1377 | manager_add_job(u->manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL); |
b81884e7 | 1378 | |
7f2cddae | 1379 | SET_FOREACH(other, u->dependencies[UNIT_BINDS_TO], i) |
ac155bb8 | 1380 | if (!set_get(u->dependencies[UNIT_AFTER], other) && |
b81884e7 | 1381 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1382 | manager_add_job(u->manager, JOB_START, other, JOB_REPLACE, true, NULL, NULL); |
87f0e418 | 1383 | |
ac155bb8 MS |
1384 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) |
1385 | if (!set_get(u->dependencies[UNIT_AFTER], other) && | |
b81884e7 | 1386 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1387 | manager_add_job(u->manager, JOB_START, other, JOB_FAIL, false, NULL, NULL); |
87f0e418 | 1388 | |
ac155bb8 MS |
1389 | SET_FOREACH(other, u->dependencies[UNIT_WANTS], i) |
1390 | if (!set_get(u->dependencies[UNIT_AFTER], other) && | |
b81884e7 | 1391 | !UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(other))) |
ac155bb8 | 1392 | manager_add_job(u->manager, JOB_START, other, JOB_FAIL, false, NULL, NULL); |
87f0e418 | 1393 | |
ac155bb8 | 1394 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTS], i) |
b81884e7 | 1395 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
ac155bb8 | 1396 | manager_add_job(u->manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL); |
69dd2852 | 1397 | |
ac155bb8 | 1398 | SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i) |
b81884e7 | 1399 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
ac155bb8 | 1400 | manager_add_job(u->manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL); |
87f0e418 LP |
1401 | } |
1402 | ||
1403 | static void retroactively_stop_dependencies(Unit *u) { | |
1404 | Iterator i; | |
1405 | Unit *other; | |
1406 | ||
1407 | assert(u); | |
1408 | assert(UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u))); | |
1409 | ||
b81884e7 | 1410 | /* Pull down units which are bound to us recursively if enabled */ |
ac155bb8 | 1411 | SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) |
b81884e7 | 1412 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
ac155bb8 | 1413 | manager_add_job(u->manager, JOB_STOP, other, JOB_REPLACE, true, NULL, NULL); |
cd0504d0 MS |
1414 | } |
1415 | ||
1416 | static void check_unneeded_dependencies(Unit *u) { | |
1417 | Iterator i; | |
1418 | Unit *other; | |
1419 | ||
1420 | assert(u); | |
1421 | assert(UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u))); | |
f3bff0eb LP |
1422 | |
1423 | /* Garbage collect services that might not be needed anymore, if enabled */ | |
ac155bb8 | 1424 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES], i) |
87f0e418 | 1425 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1426 | unit_check_unneeded(other); |
ac155bb8 | 1427 | SET_FOREACH(other, u->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) |
f3bff0eb | 1428 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1429 | unit_check_unneeded(other); |
ac155bb8 | 1430 | SET_FOREACH(other, u->dependencies[UNIT_WANTS], i) |
f3bff0eb | 1431 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1432 | unit_check_unneeded(other); |
ac155bb8 | 1433 | SET_FOREACH(other, u->dependencies[UNIT_REQUISITE], i) |
f3bff0eb | 1434 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1435 | unit_check_unneeded(other); |
ac155bb8 | 1436 | SET_FOREACH(other, u->dependencies[UNIT_REQUISITE_OVERRIDABLE], i) |
f3bff0eb | 1437 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
b4a16b7b | 1438 | unit_check_unneeded(other); |
7f2cddae | 1439 | SET_FOREACH(other, u->dependencies[UNIT_BINDS_TO], i) |
b81884e7 LP |
1440 | if (!UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(other))) |
1441 | unit_check_unneeded(other); | |
87f0e418 LP |
1442 | } |
1443 | ||
3ecaa09b | 1444 | void unit_start_on_failure(Unit *u) { |
c0daa706 LP |
1445 | Unit *other; |
1446 | Iterator i; | |
1447 | ||
1448 | assert(u); | |
1449 | ||
ac155bb8 | 1450 | if (set_size(u->dependencies[UNIT_ON_FAILURE]) <= 0) |
222ae6a8 LP |
1451 | return; |
1452 | ||
c1b6628d | 1453 | log_info_unit(u->id, "Triggering OnFailure= dependencies of %s.", u->id); |
222ae6a8 | 1454 | |
ac155bb8 | 1455 | SET_FOREACH(other, u->dependencies[UNIT_ON_FAILURE], i) { |
222ae6a8 LP |
1456 | int r; |
1457 | ||
d420282b | 1458 | r = manager_add_job(u->manager, JOB_START, other, u->on_failure_job_mode, true, NULL, NULL); |
c1b6628d ZJS |
1459 | if (r < 0) |
1460 | log_error_unit(u->id, "Failed to enqueue OnFailure= job: %s", strerror(-r)); | |
222ae6a8 | 1461 | } |
c0daa706 LP |
1462 | } |
1463 | ||
3ecaa09b LP |
1464 | void unit_trigger_notify(Unit *u) { |
1465 | Unit *other; | |
1466 | Iterator i; | |
1467 | ||
1468 | assert(u); | |
1469 | ||
1470 | SET_FOREACH(other, u->dependencies[UNIT_TRIGGERED_BY], i) | |
1471 | if (UNIT_VTABLE(other)->trigger_notify) | |
1472 | UNIT_VTABLE(other)->trigger_notify(other, u); | |
1473 | } | |
1474 | ||
e2f3b44c | 1475 | void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success) { |
546ac4f0 | 1476 | Manager *m; |
7e6e7b06 | 1477 | bool unexpected; |
a096ed36 | 1478 | |
87f0e418 LP |
1479 | assert(u); |
1480 | assert(os < _UNIT_ACTIVE_STATE_MAX); | |
1481 | assert(ns < _UNIT_ACTIVE_STATE_MAX); | |
87f0e418 | 1482 | |
8e471ccd LP |
1483 | /* Note that this is called for all low-level state changes, |
1484 | * even if they might map to the same high-level | |
1485 | * UnitActiveState! That means that ns == os is OK an expected | |
c5315881 | 1486 | * behavior here. For example: if a mount point is remounted |
cd6d0a45 | 1487 | * this function will be called too! */ |
87f0e418 | 1488 | |
546ac4f0 MS |
1489 | m = u->manager; |
1490 | ||
1491 | if (m->n_reloading <= 0) { | |
bdbf9951 | 1492 | dual_timestamp ts; |
173e3821 | 1493 | |
bdbf9951 | 1494 | dual_timestamp_get(&ts); |
173e3821 | 1495 | |
bdbf9951 | 1496 | if (UNIT_IS_INACTIVE_OR_FAILED(os) && !UNIT_IS_INACTIVE_OR_FAILED(ns)) |
ac155bb8 | 1497 | u->inactive_exit_timestamp = ts; |
bdbf9951 | 1498 | else if (!UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_INACTIVE_OR_FAILED(ns)) |
ac155bb8 | 1499 | u->inactive_enter_timestamp = ts; |
bdbf9951 LP |
1500 | |
1501 | if (!UNIT_IS_ACTIVE_OR_RELOADING(os) && UNIT_IS_ACTIVE_OR_RELOADING(ns)) | |
ac155bb8 | 1502 | u->active_enter_timestamp = ts; |
bdbf9951 | 1503 | else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns)) |
ac155bb8 | 1504 | u->active_exit_timestamp = ts; |
bdbf9951 | 1505 | } |
87f0e418 | 1506 | |
fdf20a31 | 1507 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
4ad49000 | 1508 | unit_destroy_cgroup(u); |
fb385181 | 1509 | |
9cd86184 OB |
1510 | /* Note that this doesn't apply to RemainAfterExit services exiting |
1511 | * sucessfully, since there's no change of state in that case. Which is | |
1512 | * why it is handled in service_set_state() */ | |
7ed9f6cd MS |
1513 | if (UNIT_IS_INACTIVE_OR_FAILED(os) != UNIT_IS_INACTIVE_OR_FAILED(ns)) { |
1514 | ExecContext *ec = unit_get_exec_context(u); | |
1515 | if (ec && exec_context_may_touch_console(ec)) { | |
31a7eb86 ZJS |
1516 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) { |
1517 | m->n_on_console --; | |
1518 | ||
1519 | if (m->n_on_console == 0) | |
1520 | /* unset no_console_output flag, since the console is free */ | |
2f38577f | 1521 | m->no_console_output = false; |
31a7eb86 ZJS |
1522 | } else |
1523 | m->n_on_console ++; | |
7ed9f6cd MS |
1524 | } |
1525 | } | |
1526 | ||
ac155bb8 | 1527 | if (u->job) { |
7e6e7b06 | 1528 | unexpected = false; |
87f0e418 | 1529 | |
ac155bb8 | 1530 | if (u->job->state == JOB_WAITING) |
87f0e418 LP |
1531 | |
1532 | /* So we reached a different state for this | |
1533 | * job. Let's see if we can run it now if it | |
1534 | * failed previously due to EAGAIN. */ | |
ac155bb8 | 1535 | job_add_to_run_queue(u->job); |
87f0e418 | 1536 | |
b410e6b9 | 1537 | /* Let's check whether this state change constitutes a |
35b8ca3a | 1538 | * finished job, or maybe contradicts a running job and |
b410e6b9 | 1539 | * hence needs to invalidate jobs. */ |
87f0e418 | 1540 | |
ac155bb8 | 1541 | switch (u->job->type) { |
87f0e418 | 1542 | |
b410e6b9 LP |
1543 | case JOB_START: |
1544 | case JOB_VERIFY_ACTIVE: | |
87f0e418 | 1545 | |
b410e6b9 | 1546 | if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) |
5273510e | 1547 | job_finish_and_invalidate(u->job, JOB_DONE, true); |
ac155bb8 | 1548 | else if (u->job->state == JOB_RUNNING && ns != UNIT_ACTIVATING) { |
b410e6b9 | 1549 | unexpected = true; |
41b02ec7 | 1550 | |
fdf20a31 | 1551 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
5273510e | 1552 | job_finish_and_invalidate(u->job, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE, true); |
b410e6b9 | 1553 | } |
87f0e418 | 1554 | |
b410e6b9 | 1555 | break; |
87f0e418 | 1556 | |
b410e6b9 LP |
1557 | case JOB_RELOAD: |
1558 | case JOB_RELOAD_OR_START: | |
87f0e418 | 1559 | |
ac155bb8 | 1560 | if (u->job->state == JOB_RUNNING) { |
a096ed36 | 1561 | if (ns == UNIT_ACTIVE) |
5273510e | 1562 | job_finish_and_invalidate(u->job, reload_success ? JOB_DONE : JOB_FAILED, true); |
032ff4af | 1563 | else if (ns != UNIT_ACTIVATING && ns != UNIT_RELOADING) { |
a096ed36 | 1564 | unexpected = true; |
41b02ec7 | 1565 | |
fdf20a31 | 1566 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
5273510e | 1567 | job_finish_and_invalidate(u->job, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE, true); |
a096ed36 | 1568 | } |
b410e6b9 | 1569 | } |
87f0e418 | 1570 | |
b410e6b9 | 1571 | break; |
87f0e418 | 1572 | |
b410e6b9 LP |
1573 | case JOB_STOP: |
1574 | case JOB_RESTART: | |
1575 | case JOB_TRY_RESTART: | |
87f0e418 | 1576 | |
fdf20a31 | 1577 | if (UNIT_IS_INACTIVE_OR_FAILED(ns)) |
5273510e | 1578 | job_finish_and_invalidate(u->job, JOB_DONE, true); |
ac155bb8 | 1579 | else if (u->job->state == JOB_RUNNING && ns != UNIT_DEACTIVATING) { |
b410e6b9 | 1580 | unexpected = true; |
5273510e | 1581 | job_finish_and_invalidate(u->job, JOB_FAILED, true); |
b410e6b9 | 1582 | } |
87f0e418 | 1583 | |
b410e6b9 | 1584 | break; |
87f0e418 | 1585 | |
b410e6b9 LP |
1586 | default: |
1587 | assert_not_reached("Job type unknown"); | |
87f0e418 | 1588 | } |
87f0e418 | 1589 | |
7e6e7b06 LP |
1590 | } else |
1591 | unexpected = true; | |
1592 | ||
546ac4f0 | 1593 | if (m->n_reloading <= 0) { |
f3bff0eb | 1594 | |
bdbf9951 LP |
1595 | /* If this state change happened without being |
1596 | * requested by a job, then let's retroactively start | |
1597 | * or stop dependencies. We skip that step when | |
1598 | * deserializing, since we don't want to create any | |
1599 | * additional jobs just because something is already | |
1600 | * activated. */ | |
1601 | ||
1602 | if (unexpected) { | |
1603 | if (UNIT_IS_INACTIVE_OR_FAILED(os) && UNIT_IS_ACTIVE_OR_ACTIVATING(ns)) | |
1604 | retroactively_start_dependencies(u); | |
1605 | else if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns)) | |
1606 | retroactively_stop_dependencies(u); | |
1607 | } | |
5de9682c | 1608 | |
cd0504d0 MS |
1609 | /* stop unneeded units regardless if going down was expected or not */ |
1610 | if (UNIT_IS_ACTIVE_OR_ACTIVATING(os) && UNIT_IS_INACTIVE_OR_DEACTIVATING(ns)) | |
1611 | check_unneeded_dependencies(u); | |
1612 | ||
bdbf9951 | 1613 | if (ns != os && ns == UNIT_FAILED) { |
c1b6628d | 1614 | log_notice_unit(u->id, |
fcf8c440 | 1615 | "Unit %s entered failed state.", u->id); |
3ecaa09b | 1616 | unit_start_on_failure(u); |
cd6d0a45 | 1617 | } |
3b2775c5 | 1618 | } |
e537352b | 1619 | |
3b2775c5 LP |
1620 | /* Some names are special */ |
1621 | if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) { | |
1622 | ||
1623 | if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) | |
1624 | /* The bus just might have become available, | |
1625 | * hence try to connect to it, if we aren't | |
1626 | * yet connected. */ | |
546ac4f0 | 1627 | bus_init(m, true); |
3b2775c5 | 1628 | |
ac155bb8 | 1629 | if (u->type == UNIT_SERVICE && |
3b2775c5 | 1630 | !UNIT_IS_ACTIVE_OR_RELOADING(os) && |
546ac4f0 | 1631 | m->n_reloading <= 0) { |
3b2775c5 | 1632 | /* Write audit record if we have just finished starting up */ |
546ac4f0 | 1633 | manager_send_unit_audit(m, u, AUDIT_SERVICE_START, true); |
ac155bb8 | 1634 | u->in_audit = true; |
3b2775c5 | 1635 | } |
e983b760 | 1636 | |
3b2775c5 | 1637 | if (!UNIT_IS_ACTIVE_OR_RELOADING(os)) |
546ac4f0 | 1638 | manager_send_unit_plymouth(m, u); |
bdbf9951 | 1639 | |
3b2775c5 | 1640 | } else { |
bdbf9951 | 1641 | |
3b2775c5 LP |
1642 | /* We don't care about D-Bus here, since we'll get an |
1643 | * asynchronous notification for it anyway. */ | |
cd6d0a45 | 1644 | |
ac155bb8 | 1645 | if (u->type == UNIT_SERVICE && |
3b2775c5 LP |
1646 | UNIT_IS_INACTIVE_OR_FAILED(ns) && |
1647 | !UNIT_IS_INACTIVE_OR_FAILED(os) && | |
546ac4f0 | 1648 | m->n_reloading <= 0) { |
4927fcae | 1649 | |
3b2775c5 LP |
1650 | /* Hmm, if there was no start record written |
1651 | * write it now, so that we always have a nice | |
1652 | * pair */ | |
ac155bb8 | 1653 | if (!u->in_audit) { |
546ac4f0 | 1654 | manager_send_unit_audit(m, u, AUDIT_SERVICE_START, ns == UNIT_INACTIVE); |
cd6d0a45 | 1655 | |
3b2775c5 | 1656 | if (ns == UNIT_INACTIVE) |
546ac4f0 | 1657 | manager_send_unit_audit(m, u, AUDIT_SERVICE_STOP, true); |
3b2775c5 LP |
1658 | } else |
1659 | /* Write audit record if we have just finished shutting down */ | |
546ac4f0 | 1660 | manager_send_unit_audit(m, u, AUDIT_SERVICE_STOP, ns == UNIT_INACTIVE); |
bdbf9951 | 1661 | |
ac155bb8 | 1662 | u->in_audit = false; |
cd6d0a45 | 1663 | } |
f278026d LP |
1664 | } |
1665 | ||
546ac4f0 | 1666 | manager_recheck_journal(m); |
3ecaa09b | 1667 | unit_trigger_notify(u); |
3b2775c5 | 1668 | |
f3bff0eb LP |
1669 | /* Maybe we finished startup and are now ready for being |
1670 | * stopped because unneeded? */ | |
bf6dcfa6 OS |
1671 | if (u->manager->n_reloading <= 0) |
1672 | unit_check_unneeded(u); | |
c1e1601e LP |
1673 | |
1674 | unit_add_to_dbus_queue(u); | |
701cc384 | 1675 | unit_add_to_gc_queue(u); |
87f0e418 LP |
1676 | } |
1677 | ||
87f0e418 LP |
1678 | int unit_watch_pid(Unit *u, pid_t pid) { |
1679 | assert(u); | |
1680 | assert(pid >= 1); | |
1681 | ||
05e343b7 LP |
1682 | /* Watch a specific PID. We only support one unit watching |
1683 | * each PID for now. */ | |
1684 | ||
ac155bb8 | 1685 | return hashmap_put(u->manager->watch_pids, LONG_TO_PTR(pid), u); |
87f0e418 LP |
1686 | } |
1687 | ||
1688 | void unit_unwatch_pid(Unit *u, pid_t pid) { | |
1689 | assert(u); | |
1690 | assert(pid >= 1); | |
1691 | ||
ac155bb8 | 1692 | hashmap_remove_value(u->manager->watch_pids, LONG_TO_PTR(pid), u); |
87f0e418 LP |
1693 | } |
1694 | ||
87f0e418 LP |
1695 | bool unit_job_is_applicable(Unit *u, JobType j) { |
1696 | assert(u); | |
1697 | assert(j >= 0 && j < _JOB_TYPE_MAX); | |
1698 | ||
1699 | switch (j) { | |
1700 | ||
1701 | case JOB_VERIFY_ACTIVE: | |
1702 | case JOB_START: | |
57339f47 | 1703 | case JOB_STOP: |
e0209d83 | 1704 | case JOB_NOP: |
87f0e418 LP |
1705 | return true; |
1706 | ||
87f0e418 LP |
1707 | case JOB_RESTART: |
1708 | case JOB_TRY_RESTART: | |
1709 | return unit_can_start(u); | |
1710 | ||
1711 | case JOB_RELOAD: | |
1712 | return unit_can_reload(u); | |
1713 | ||
1714 | case JOB_RELOAD_OR_START: | |
1715 | return unit_can_reload(u) && unit_can_start(u); | |
1716 | ||
1717 | default: | |
1718 | assert_not_reached("Invalid job type"); | |
1719 | } | |
1720 | } | |
1721 | ||
701cc384 | 1722 | int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference) { |
87f0e418 LP |
1723 | |
1724 | static const UnitDependency inverse_table[_UNIT_DEPENDENCY_MAX] = { | |
1725 | [UNIT_REQUIRES] = UNIT_REQUIRED_BY, | |
9e2f7c11 | 1726 | [UNIT_REQUIRES_OVERRIDABLE] = UNIT_REQUIRED_BY_OVERRIDABLE, |
87f0e418 LP |
1727 | [UNIT_WANTS] = UNIT_WANTED_BY, |
1728 | [UNIT_REQUISITE] = UNIT_REQUIRED_BY, | |
9e2f7c11 | 1729 | [UNIT_REQUISITE_OVERRIDABLE] = UNIT_REQUIRED_BY_OVERRIDABLE, |
7f2cddae | 1730 | [UNIT_BINDS_TO] = UNIT_BOUND_BY, |
60649f17 | 1731 | [UNIT_PART_OF] = UNIT_CONSISTS_OF, |
87f0e418 | 1732 | [UNIT_REQUIRED_BY] = _UNIT_DEPENDENCY_INVALID, |
9e2f7c11 | 1733 | [UNIT_REQUIRED_BY_OVERRIDABLE] = _UNIT_DEPENDENCY_INVALID, |
87f0e418 | 1734 | [UNIT_WANTED_BY] = _UNIT_DEPENDENCY_INVALID, |
7f2cddae | 1735 | [UNIT_BOUND_BY] = UNIT_BINDS_TO, |
60649f17 | 1736 | [UNIT_CONSISTS_OF] = UNIT_PART_OF, |
69dd2852 LP |
1737 | [UNIT_CONFLICTS] = UNIT_CONFLICTED_BY, |
1738 | [UNIT_CONFLICTED_BY] = UNIT_CONFLICTS, | |
87f0e418 | 1739 | [UNIT_BEFORE] = UNIT_AFTER, |
701cc384 | 1740 | [UNIT_AFTER] = UNIT_BEFORE, |
5de9682c | 1741 | [UNIT_ON_FAILURE] = _UNIT_DEPENDENCY_INVALID, |
701cc384 | 1742 | [UNIT_REFERENCES] = UNIT_REFERENCED_BY, |
57020a3a LP |
1743 | [UNIT_REFERENCED_BY] = UNIT_REFERENCES, |
1744 | [UNIT_TRIGGERS] = UNIT_TRIGGERED_BY, | |
4dcc1cb4 | 1745 | [UNIT_TRIGGERED_BY] = UNIT_TRIGGERS, |
7f2cddae | 1746 | [UNIT_PROPAGATES_RELOAD_TO] = UNIT_RELOAD_PROPAGATED_FROM, |
85e9a101 | 1747 | [UNIT_RELOAD_PROPAGATED_FROM] = UNIT_PROPAGATES_RELOAD_TO, |
87f0e418 | 1748 | }; |
701cc384 | 1749 | int r, q = 0, v = 0, w = 0; |
87f0e418 LP |
1750 | |
1751 | assert(u); | |
1752 | assert(d >= 0 && d < _UNIT_DEPENDENCY_MAX); | |
87f0e418 LP |
1753 | assert(other); |
1754 | ||
9f151f29 LP |
1755 | u = unit_follow_merge(u); |
1756 | other = unit_follow_merge(other); | |
1757 | ||
87f0e418 LP |
1758 | /* We won't allow dependencies on ourselves. We will not |
1759 | * consider them an error however. */ | |
1760 | if (u == other) | |
1761 | return 0; | |
1762 | ||
ac155bb8 | 1763 | if ((r = set_ensure_allocated(&u->dependencies[d], trivial_hash_func, trivial_compare_func)) < 0) |
87f0e418 LP |
1764 | return r; |
1765 | ||
5de9682c | 1766 | if (inverse_table[d] != _UNIT_DEPENDENCY_INVALID) |
ac155bb8 | 1767 | if ((r = set_ensure_allocated(&other->dependencies[inverse_table[d]], trivial_hash_func, trivial_compare_func)) < 0) |
5de9682c LP |
1768 | return r; |
1769 | ||
701cc384 | 1770 | if (add_reference) |
ac155bb8 MS |
1771 | if ((r = set_ensure_allocated(&u->dependencies[UNIT_REFERENCES], trivial_hash_func, trivial_compare_func)) < 0 || |
1772 | (r = set_ensure_allocated(&other->dependencies[UNIT_REFERENCED_BY], trivial_hash_func, trivial_compare_func)) < 0) | |
701cc384 | 1773 | return r; |
87f0e418 | 1774 | |
ac155bb8 | 1775 | if ((q = set_put(u->dependencies[d], other)) < 0) |
701cc384 | 1776 | return q; |
87f0e418 | 1777 | |
5de9682c | 1778 | if (inverse_table[d] != _UNIT_DEPENDENCY_INVALID) |
ac155bb8 | 1779 | if ((v = set_put(other->dependencies[inverse_table[d]], u)) < 0) { |
5de9682c LP |
1780 | r = v; |
1781 | goto fail; | |
1782 | } | |
701cc384 LP |
1783 | |
1784 | if (add_reference) { | |
ac155bb8 | 1785 | if ((w = set_put(u->dependencies[UNIT_REFERENCES], other)) < 0) { |
701cc384 LP |
1786 | r = w; |
1787 | goto fail; | |
1788 | } | |
1789 | ||
ac155bb8 | 1790 | if ((r = set_put(other->dependencies[UNIT_REFERENCED_BY], u)) < 0) |
701cc384 | 1791 | goto fail; |
87f0e418 LP |
1792 | } |
1793 | ||
c1e1601e | 1794 | unit_add_to_dbus_queue(u); |
87f0e418 | 1795 | return 0; |
701cc384 LP |
1796 | |
1797 | fail: | |
1798 | if (q > 0) | |
ac155bb8 | 1799 | set_remove(u->dependencies[d], other); |
701cc384 LP |
1800 | |
1801 | if (v > 0) | |
ac155bb8 | 1802 | set_remove(other->dependencies[inverse_table[d]], u); |
701cc384 LP |
1803 | |
1804 | if (w > 0) | |
ac155bb8 | 1805 | set_remove(u->dependencies[UNIT_REFERENCES], other); |
701cc384 LP |
1806 | |
1807 | return r; | |
87f0e418 | 1808 | } |
0301abf4 | 1809 | |
2c966c03 LP |
1810 | int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference) { |
1811 | int r; | |
1812 | ||
1813 | assert(u); | |
1814 | ||
1815 | if ((r = unit_add_dependency(u, d, other, add_reference)) < 0) | |
1816 | return r; | |
1817 | ||
1818 | if ((r = unit_add_dependency(u, e, other, add_reference)) < 0) | |
1819 | return r; | |
1820 | ||
1821 | return 0; | |
1822 | } | |
1823 | ||
9e2f7c11 LP |
1824 | static const char *resolve_template(Unit *u, const char *name, const char*path, char **p) { |
1825 | char *s; | |
1826 | ||
1827 | assert(u); | |
1828 | assert(name || path); | |
8afbb8e1 | 1829 | assert(p); |
9e2f7c11 LP |
1830 | |
1831 | if (!name) | |
9eb977db | 1832 | name = path_get_file_name(path); |
9e2f7c11 LP |
1833 | |
1834 | if (!unit_name_is_template(name)) { | |
1835 | *p = NULL; | |
1836 | return name; | |
1837 | } | |
1838 | ||
ac155bb8 MS |
1839 | if (u->instance) |
1840 | s = unit_name_replace_instance(name, u->instance); | |
9e2f7c11 | 1841 | else { |
ae018d9b | 1842 | _cleanup_free_ char *i = NULL; |
9e2f7c11 | 1843 | |
8afbb8e1 LP |
1844 | i = unit_name_to_prefix(u->id); |
1845 | if (!i) | |
9e2f7c11 LP |
1846 | return NULL; |
1847 | ||
1848 | s = unit_name_replace_instance(name, i); | |
9e2f7c11 LP |
1849 | } |
1850 | ||
1851 | if (!s) | |
1852 | return NULL; | |
1853 | ||
1854 | *p = s; | |
1855 | return s; | |
1856 | } | |
1857 | ||
701cc384 | 1858 | int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *path, bool add_reference) { |
09b6b09f LP |
1859 | Unit *other; |
1860 | int r; | |
8afbb8e1 | 1861 | _cleanup_free_ char *s = NULL; |
09b6b09f | 1862 | |
9e2f7c11 LP |
1863 | assert(u); |
1864 | assert(name || path); | |
09b6b09f | 1865 | |
8afbb8e1 LP |
1866 | name = resolve_template(u, name, path, &s); |
1867 | if (!name) | |
9e2f7c11 | 1868 | return -ENOMEM; |
09b6b09f | 1869 | |
8afbb8e1 LP |
1870 | r = manager_load_unit(u->manager, name, path, NULL, &other); |
1871 | if (r < 0) | |
1872 | return r; | |
9e2f7c11 | 1873 | |
8afbb8e1 | 1874 | return unit_add_dependency(u, d, other, add_reference); |
09b6b09f LP |
1875 | } |
1876 | ||
2c966c03 LP |
1877 | int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) { |
1878 | Unit *other; | |
1879 | int r; | |
68eda4bd | 1880 | _cleanup_free_ char *s = NULL; |
2c966c03 LP |
1881 | |
1882 | assert(u); | |
1883 | assert(name || path); | |
1884 | ||
1885 | if (!(name = resolve_template(u, name, path, &s))) | |
1886 | return -ENOMEM; | |
1887 | ||
ac155bb8 | 1888 | if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) |
68eda4bd | 1889 | return r; |
2c966c03 LP |
1890 | |
1891 | r = unit_add_two_dependencies(u, d, e, other, add_reference); | |
1892 | ||
2c966c03 LP |
1893 | return r; |
1894 | } | |
1895 | ||
701cc384 | 1896 | int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *path, bool add_reference) { |
bd77d0fc LP |
1897 | Unit *other; |
1898 | int r; | |
68eda4bd | 1899 | _cleanup_free_ char *s = NULL; |
bd77d0fc | 1900 | |
9e2f7c11 LP |
1901 | assert(u); |
1902 | assert(name || path); | |
bd77d0fc | 1903 | |
9e2f7c11 LP |
1904 | if (!(name = resolve_template(u, name, path, &s))) |
1905 | return -ENOMEM; | |
bd77d0fc | 1906 | |
ac155bb8 | 1907 | if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) |
68eda4bd | 1908 | return r; |
9e2f7c11 | 1909 | |
701cc384 | 1910 | r = unit_add_dependency(other, d, u, add_reference); |
9e2f7c11 | 1911 | |
9e2f7c11 | 1912 | return r; |
bd77d0fc LP |
1913 | } |
1914 | ||
2c966c03 LP |
1915 | int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) { |
1916 | Unit *other; | |
1917 | int r; | |
68eda4bd | 1918 | _cleanup_free_ char *s = NULL; |
2c966c03 LP |
1919 | |
1920 | assert(u); | |
1921 | assert(name || path); | |
1922 | ||
1923 | if (!(name = resolve_template(u, name, path, &s))) | |
1924 | return -ENOMEM; | |
1925 | ||
ac155bb8 | 1926 | if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) |
68eda4bd | 1927 | return r; |
2c966c03 LP |
1928 | |
1929 | if ((r = unit_add_two_dependencies(other, d, e, u, add_reference)) < 0) | |
68eda4bd | 1930 | return r; |
2c966c03 | 1931 | |
2c966c03 LP |
1932 | return r; |
1933 | } | |
1934 | ||
0301abf4 | 1935 | int set_unit_path(const char *p) { |
26d04f86 | 1936 | _cleanup_free_ char *c = NULL; |
0301abf4 LP |
1937 | |
1938 | /* This is mostly for debug purposes */ | |
26d04f86 LP |
1939 | c = path_make_absolute_cwd(p); |
1940 | if (setenv("SYSTEMD_UNIT_PATH", c, 0) < 0) | |
1941 | return -errno; | |
0301abf4 LP |
1942 | |
1943 | return 0; | |
1944 | } | |
88066b3a | 1945 | |
ea430986 | 1946 | char *unit_dbus_path(Unit *u) { |
ea430986 LP |
1947 | assert(u); |
1948 | ||
ac155bb8 | 1949 | if (!u->id) |
04ade7d2 LP |
1950 | return NULL; |
1951 | ||
48899192 | 1952 | return unit_dbus_path_from_name(u->id); |
ea430986 LP |
1953 | } |
1954 | ||
41f9172f | 1955 | char *unit_default_cgroup_path(Unit *u) { |
d7bd3de0 | 1956 | _cleanup_free_ char *escaped = NULL, *slice = NULL; |
a016b922 | 1957 | int r; |
5954c074 | 1958 | |
013b87c0 LP |
1959 | assert(u); |
1960 | ||
4ad49000 LP |
1961 | if (unit_has_name(u, SPECIAL_ROOT_SLICE)) |
1962 | return strdup(u->manager->cgroup_root); | |
1963 | ||
1964 | if (UNIT_ISSET(u->slice) && !unit_has_name(UNIT_DEREF(u->slice), SPECIAL_ROOT_SLICE)) { | |
a016b922 LP |
1965 | r = cg_slice_to_path(UNIT_DEREF(u->slice)->id, &slice); |
1966 | if (r < 0) | |
1967 | return NULL; | |
1968 | } | |
1969 | ||
d7bd3de0 LP |
1970 | escaped = cg_escape(u->id); |
1971 | if (!escaped) | |
5954c074 LP |
1972 | return NULL; |
1973 | ||
d7bd3de0 LP |
1974 | if (slice) |
1975 | return strjoin(u->manager->cgroup_root, "/", slice, "/", escaped, NULL); | |
1976 | else | |
1977 | return strjoin(u->manager->cgroup_root, "/", escaped, NULL); | |
013b87c0 LP |
1978 | } |
1979 | ||
a016b922 | 1980 | int unit_add_default_slice(Unit *u) { |
a8833944 LP |
1981 | _cleanup_free_ char *b = NULL; |
1982 | const char *slice_name; | |
a016b922 LP |
1983 | Unit *slice; |
1984 | int r; | |
1985 | ||
1986 | assert(u); | |
1987 | ||
9444b1f2 | 1988 | if (UNIT_ISSET(u->slice)) |
a016b922 LP |
1989 | return 0; |
1990 | ||
4ad49000 | 1991 | if (!unit_get_cgroup_context(u)) |
a016b922 LP |
1992 | return 0; |
1993 | ||
a8833944 LP |
1994 | if (u->instance) { |
1995 | _cleanup_free_ char *prefix = NULL, *escaped = NULL; | |
68eda4bd | 1996 | |
a8833944 LP |
1997 | /* Implicitly place all instantiated units in their |
1998 | * own per-template slice */ | |
1999 | ||
2000 | prefix = unit_name_to_prefix(u->id); | |
2001 | if (!prefix) | |
2002 | return -ENOMEM; | |
2003 | ||
2004 | /* The prefix is already escaped, but it might include | |
2005 | * "-" which has a special meaning for slice units, | |
2006 | * hence escape it here extra. */ | |
2007 | escaped = strreplace(prefix, "-", "\\x2d"); | |
2008 | if (!escaped) | |
2009 | return -ENOMEM; | |
2010 | ||
2011 | if (u->manager->running_as == SYSTEMD_SYSTEM) | |
2012 | b = strjoin("system-", escaped, ".slice", NULL); | |
2013 | else | |
2014 | b = strappend(escaped, ".slice"); | |
2015 | if (!b) | |
2016 | return -ENOMEM; | |
2017 | ||
2018 | slice_name = b; | |
2019 | } else | |
2020 | slice_name = | |
2021 | u->manager->running_as == SYSTEMD_SYSTEM | |
2022 | ? SPECIAL_SYSTEM_SLICE | |
2023 | : SPECIAL_ROOT_SLICE; | |
2024 | ||
2025 | r = manager_load_unit(u->manager, slice_name, NULL, NULL, &slice); | |
a016b922 LP |
2026 | if (r < 0) |
2027 | return r; | |
2028 | ||
2029 | unit_ref_set(&u->slice, slice); | |
2030 | return 0; | |
2031 | } | |
2032 | ||
9444b1f2 LP |
2033 | const char *unit_slice_name(Unit *u) { |
2034 | assert(u); | |
2035 | ||
2036 | if (!UNIT_ISSET(u->slice)) | |
2037 | return NULL; | |
2038 | ||
2039 | return UNIT_DEREF(u->slice)->id; | |
2040 | } | |
2041 | ||
f6ff8c29 | 2042 | int unit_load_related_unit(Unit *u, const char *type, Unit **_found) { |
78edb35a | 2043 | _cleanup_free_ char *t = NULL; |
f6ff8c29 LP |
2044 | int r; |
2045 | ||
2046 | assert(u); | |
2047 | assert(type); | |
2048 | assert(_found); | |
2049 | ||
78edb35a LP |
2050 | t = unit_name_change_suffix(u->id, type); |
2051 | if (!t) | |
f6ff8c29 LP |
2052 | return -ENOMEM; |
2053 | ||
2054 | assert(!unit_has_name(u, t)); | |
2055 | ||
ac155bb8 | 2056 | r = manager_load_unit(u->manager, t, NULL, NULL, _found); |
9e2f7c11 | 2057 | assert(r < 0 || *_found != u); |
f6ff8c29 LP |
2058 | return r; |
2059 | } | |
2060 | ||
05e343b7 LP |
2061 | int unit_watch_bus_name(Unit *u, const char *name) { |
2062 | assert(u); | |
2063 | assert(name); | |
2064 | ||
2065 | /* Watch a specific name on the bus. We only support one unit | |
2066 | * watching each name for now. */ | |
2067 | ||
ac155bb8 | 2068 | return hashmap_put(u->manager->watch_bus, name, u); |
05e343b7 LP |
2069 | } |
2070 | ||
2071 | void unit_unwatch_bus_name(Unit *u, const char *name) { | |
2072 | assert(u); | |
2073 | assert(name); | |
2074 | ||
ac155bb8 | 2075 | hashmap_remove_value(u->manager->watch_bus, name, u); |
05e343b7 LP |
2076 | } |
2077 | ||
a16e1123 LP |
2078 | bool unit_can_serialize(Unit *u) { |
2079 | assert(u); | |
2080 | ||
2081 | return UNIT_VTABLE(u)->serialize && UNIT_VTABLE(u)->deserialize_item; | |
2082 | } | |
2083 | ||
6b78f9b4 | 2084 | int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs) { |
a16e1123 LP |
2085 | int r; |
2086 | ||
2087 | assert(u); | |
2088 | assert(f); | |
2089 | assert(fds); | |
2090 | ||
2091 | if (!unit_can_serialize(u)) | |
2092 | return 0; | |
2093 | ||
6fa48533 LP |
2094 | r = UNIT_VTABLE(u)->serialize(u, f, fds); |
2095 | if (r < 0) | |
a16e1123 LP |
2096 | return r; |
2097 | ||
cca098b0 | 2098 | |
6b78f9b4 LP |
2099 | if (serialize_jobs) { |
2100 | if (u->job) { | |
2101 | fprintf(f, "job\n"); | |
2102 | job_serialize(u->job, f, fds); | |
2103 | } | |
2104 | ||
2105 | if (u->nop_job) { | |
2106 | fprintf(f, "job\n"); | |
2107 | job_serialize(u->nop_job, f, fds); | |
2108 | } | |
e0209d83 MS |
2109 | } |
2110 | ||
ac155bb8 MS |
2111 | dual_timestamp_serialize(f, "inactive-exit-timestamp", &u->inactive_exit_timestamp); |
2112 | dual_timestamp_serialize(f, "active-enter-timestamp", &u->active_enter_timestamp); | |
2113 | dual_timestamp_serialize(f, "active-exit-timestamp", &u->active_exit_timestamp); | |
2114 | dual_timestamp_serialize(f, "inactive-enter-timestamp", &u->inactive_enter_timestamp); | |
2115 | dual_timestamp_serialize(f, "condition-timestamp", &u->condition_timestamp); | |
2791a8f8 | 2116 | |
ac155bb8 MS |
2117 | if (dual_timestamp_is_set(&u->condition_timestamp)) |
2118 | unit_serialize_item(u, f, "condition-result", yes_no(u->condition_result)); | |
10717a1a | 2119 | |
c2756a68 LP |
2120 | unit_serialize_item(u, f, "transient", yes_no(u->transient)); |
2121 | ||
2122 | if (u->cgroup_path) | |
2123 | unit_serialize_item(u, f, "cgroup", u->cgroup_path); | |
2124 | ||
a16e1123 LP |
2125 | /* End marker */ |
2126 | fputc('\n', f); | |
2127 | return 0; | |
2128 | } | |
2129 | ||
2130 | void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *format, ...) { | |
2131 | va_list ap; | |
2132 | ||
2133 | assert(u); | |
2134 | assert(f); | |
2135 | assert(key); | |
2136 | assert(format); | |
2137 | ||
2138 | fputs(key, f); | |
2139 | fputc('=', f); | |
2140 | ||
2141 | va_start(ap, format); | |
2142 | vfprintf(f, format, ap); | |
2143 | va_end(ap); | |
2144 | ||
2145 | fputc('\n', f); | |
2146 | } | |
2147 | ||
2148 | void unit_serialize_item(Unit *u, FILE *f, const char *key, const char *value) { | |
2149 | assert(u); | |
2150 | assert(f); | |
2151 | assert(key); | |
2152 | assert(value); | |
2153 | ||
2154 | fprintf(f, "%s=%s\n", key, value); | |
2155 | } | |
2156 | ||
2157 | int unit_deserialize(Unit *u, FILE *f, FDSet *fds) { | |
2158 | int r; | |
2159 | ||
2160 | assert(u); | |
2161 | assert(f); | |
2162 | assert(fds); | |
2163 | ||
2164 | if (!unit_can_serialize(u)) | |
2165 | return 0; | |
2166 | ||
2167 | for (;;) { | |
20c03b7b | 2168 | char line[LINE_MAX], *l, *v; |
a16e1123 LP |
2169 | size_t k; |
2170 | ||
2171 | if (!fgets(line, sizeof(line), f)) { | |
2172 | if (feof(f)) | |
2173 | return 0; | |
2174 | return -errno; | |
2175 | } | |
2176 | ||
10f8e83c | 2177 | char_array_0(line); |
a16e1123 LP |
2178 | l = strstrip(line); |
2179 | ||
2180 | /* End marker */ | |
2181 | if (l[0] == 0) | |
2182 | return 0; | |
2183 | ||
2184 | k = strcspn(l, "="); | |
2185 | ||
2186 | if (l[k] == '=') { | |
2187 | l[k] = 0; | |
2188 | v = l+k+1; | |
2189 | } else | |
2190 | v = l+k; | |
2191 | ||
cca098b0 | 2192 | if (streq(l, "job")) { |
39a18c60 MS |
2193 | if (v[0] == '\0') { |
2194 | /* new-style serialized job */ | |
2195 | Job *j = job_new_raw(u); | |
2196 | if (!j) | |
2197 | return -ENOMEM; | |
2198 | ||
2199 | r = job_deserialize(j, f, fds); | |
2200 | if (r < 0) { | |
2201 | job_free(j); | |
2202 | return r; | |
2203 | } | |
cca098b0 | 2204 | |
39a18c60 MS |
2205 | r = hashmap_put(u->manager->jobs, UINT32_TO_PTR(j->id), j); |
2206 | if (r < 0) { | |
2207 | job_free(j); | |
2208 | return r; | |
2209 | } | |
e0209d83 MS |
2210 | |
2211 | r = job_install_deserialized(j); | |
2212 | if (r < 0) { | |
2213 | hashmap_remove(u->manager->jobs, UINT32_TO_PTR(j->id)); | |
2214 | job_free(j); | |
2215 | return r; | |
2216 | } | |
6b19ad24 MS |
2217 | |
2218 | if (j->state == JOB_RUNNING) | |
2219 | u->manager->n_running_jobs++; | |
39a18c60 MS |
2220 | } else { |
2221 | /* legacy */ | |
2222 | JobType type = job_type_from_string(v); | |
2223 | if (type < 0) | |
2224 | log_debug("Failed to parse job type value %s", v); | |
2225 | else | |
2226 | u->deserialized_job = type; | |
2227 | } | |
cca098b0 | 2228 | continue; |
8aaf019b | 2229 | } else if (streq(l, "inactive-exit-timestamp")) { |
ac155bb8 | 2230 | dual_timestamp_deserialize(v, &u->inactive_exit_timestamp); |
8aaf019b LP |
2231 | continue; |
2232 | } else if (streq(l, "active-enter-timestamp")) { | |
ac155bb8 | 2233 | dual_timestamp_deserialize(v, &u->active_enter_timestamp); |
8aaf019b LP |
2234 | continue; |
2235 | } else if (streq(l, "active-exit-timestamp")) { | |
ac155bb8 | 2236 | dual_timestamp_deserialize(v, &u->active_exit_timestamp); |
8aaf019b LP |
2237 | continue; |
2238 | } else if (streq(l, "inactive-enter-timestamp")) { | |
ac155bb8 | 2239 | dual_timestamp_deserialize(v, &u->inactive_enter_timestamp); |
8aaf019b | 2240 | continue; |
2791a8f8 | 2241 | } else if (streq(l, "condition-timestamp")) { |
ac155bb8 | 2242 | dual_timestamp_deserialize(v, &u->condition_timestamp); |
2791a8f8 LP |
2243 | continue; |
2244 | } else if (streq(l, "condition-result")) { | |
2245 | int b; | |
2246 | ||
c2756a68 LP |
2247 | b = parse_boolean(v); |
2248 | if (b < 0) | |
2791a8f8 LP |
2249 | log_debug("Failed to parse condition result value %s", v); |
2250 | else | |
ac155bb8 | 2251 | u->condition_result = b; |
efbac6d2 LP |
2252 | |
2253 | continue; | |
c2756a68 LP |
2254 | |
2255 | } else if (streq(l, "transient")) { | |
2256 | int b; | |
2257 | ||
2258 | b = parse_boolean(v); | |
2259 | if (b < 0) | |
2260 | log_debug("Failed to parse transient bool %s", v); | |
2261 | else | |
2262 | u->transient = b; | |
2263 | ||
2264 | continue; | |
2265 | } else if (streq(l, "cgroup")) { | |
2266 | char *s; | |
2267 | ||
2268 | s = strdup(v); | |
f440e1bb | 2269 | if (!s) |
c2756a68 LP |
2270 | return -ENOMEM; |
2271 | ||
2272 | free(u->cgroup_path); | |
2273 | u->cgroup_path = s; | |
72673e86 | 2274 | |
b58b8e11 | 2275 | assert(hashmap_put(u->manager->cgroup_unit, s, u) == 1); |
c2756a68 | 2276 | continue; |
8aaf019b | 2277 | } |
cca098b0 | 2278 | |
c2756a68 LP |
2279 | r = UNIT_VTABLE(u)->deserialize_item(u, l, v, fds); |
2280 | if (r < 0) | |
a16e1123 LP |
2281 | return r; |
2282 | } | |
2283 | } | |
2284 | ||
6e2ef85b LP |
2285 | int unit_add_node_link(Unit *u, const char *what, bool wants) { |
2286 | Unit *device; | |
68eda4bd | 2287 | _cleanup_free_ char *e = NULL; |
6e2ef85b LP |
2288 | int r; |
2289 | ||
2290 | assert(u); | |
2291 | ||
2292 | if (!what) | |
2293 | return 0; | |
2294 | ||
2295 | /* Adds in links to the device node that this unit is based on */ | |
2296 | ||
8407a5d0 | 2297 | if (!is_device_path(what)) |
6e2ef85b LP |
2298 | return 0; |
2299 | ||
35eb6b12 LP |
2300 | e = unit_name_from_path(what, ".device"); |
2301 | if (!e) | |
6e2ef85b LP |
2302 | return -ENOMEM; |
2303 | ||
ac155bb8 | 2304 | r = manager_load_unit(u->manager, e, NULL, NULL, &device); |
68eda4bd | 2305 | |
6e2ef85b LP |
2306 | if (r < 0) |
2307 | return r; | |
2308 | ||
faa368e3 LP |
2309 | r = unit_add_two_dependencies(u, UNIT_AFTER, UNIT_BINDS_TO, device, true); |
2310 | if (r < 0) | |
6e2ef85b LP |
2311 | return r; |
2312 | ||
faa368e3 LP |
2313 | if (wants) { |
2314 | r = unit_add_dependency(device, UNIT_WANTS, u, false); | |
2315 | if (r < 0) | |
6e2ef85b | 2316 | return r; |
faa368e3 | 2317 | } |
6e2ef85b LP |
2318 | |
2319 | return 0; | |
2320 | } | |
a16e1123 | 2321 | |
cca098b0 LP |
2322 | int unit_coldplug(Unit *u) { |
2323 | int r; | |
2324 | ||
2325 | assert(u); | |
2326 | ||
2327 | if (UNIT_VTABLE(u)->coldplug) | |
2328 | if ((r = UNIT_VTABLE(u)->coldplug(u)) < 0) | |
2329 | return r; | |
2330 | ||
39a18c60 MS |
2331 | if (u->job) { |
2332 | r = job_coldplug(u->job); | |
2333 | if (r < 0) | |
2334 | return r; | |
2335 | } else if (u->deserialized_job >= 0) { | |
2336 | /* legacy */ | |
2337 | r = manager_add_job(u->manager, u->deserialized_job, u, JOB_IGNORE_REQUIREMENTS, false, NULL, NULL); | |
2338 | if (r < 0) | |
cca098b0 LP |
2339 | return r; |
2340 | ||
ac155bb8 | 2341 | u->deserialized_job = _JOB_TYPE_INVALID; |
cca098b0 LP |
2342 | } |
2343 | ||
2344 | return 0; | |
2345 | } | |
2346 | ||
b1e2b33c CR |
2347 | #pragma GCC diagnostic push |
2348 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
49b1d377 MS |
2349 | void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) { |
2350 | manager_status_printf(u->manager, false, status, unit_status_msg_format, unit_description(u)); | |
2351 | } | |
b1e2b33c | 2352 | #pragma GCC diagnostic pop |
49b1d377 | 2353 | |
45fb0699 | 2354 | bool unit_need_daemon_reload(Unit *u) { |
ae7a7182 OS |
2355 | _cleanup_strv_free_ char **t = NULL; |
2356 | char **path; | |
1b64d026 | 2357 | struct stat st; |
ae7a7182 | 2358 | unsigned loaded_cnt, current_cnt; |
1b64d026 | 2359 | |
45fb0699 LP |
2360 | assert(u); |
2361 | ||
ac155bb8 | 2362 | if (u->fragment_path) { |
5f4b19f4 | 2363 | zero(st); |
ac155bb8 | 2364 | if (stat(u->fragment_path, &st) < 0) |
5f4b19f4 LP |
2365 | /* What, cannot access this anymore? */ |
2366 | return true; | |
45fb0699 | 2367 | |
ac155bb8 MS |
2368 | if (u->fragment_mtime > 0 && |
2369 | timespec_load(&st.st_mtim) != u->fragment_mtime) | |
5f4b19f4 LP |
2370 | return true; |
2371 | } | |
2372 | ||
1b64d026 LP |
2373 | if (u->source_path) { |
2374 | zero(st); | |
2375 | if (stat(u->source_path, &st) < 0) | |
2376 | return true; | |
2377 | ||
2378 | if (u->source_mtime > 0 && | |
2379 | timespec_load(&st.st_mtim) != u->source_mtime) | |
2380 | return true; | |
2381 | } | |
5f4b19f4 | 2382 | |
ae7a7182 OS |
2383 | t = unit_find_dropin_paths(u); |
2384 | loaded_cnt = strv_length(t); | |
2385 | current_cnt = strv_length(u->dropin_paths); | |
2386 | ||
2387 | if (loaded_cnt == current_cnt) { | |
2388 | if (loaded_cnt == 0) | |
2389 | return false; | |
2390 | ||
2391 | if (strv_overlap(u->dropin_paths, t)) { | |
2392 | STRV_FOREACH(path, u->dropin_paths) { | |
2393 | zero(st); | |
2394 | if (stat(*path, &st) < 0) | |
2395 | return true; | |
2396 | ||
2397 | if (u->dropin_mtime > 0 && | |
2398 | timespec_load(&st.st_mtim) > u->dropin_mtime) | |
2399 | return true; | |
2400 | } | |
2401 | ||
2402 | return false; | |
2403 | } else | |
2404 | return true; | |
2405 | } else | |
2406 | return true; | |
45fb0699 LP |
2407 | } |
2408 | ||
fdf20a31 | 2409 | void unit_reset_failed(Unit *u) { |
5632e374 LP |
2410 | assert(u); |
2411 | ||
fdf20a31 MM |
2412 | if (UNIT_VTABLE(u)->reset_failed) |
2413 | UNIT_VTABLE(u)->reset_failed(u); | |
5632e374 LP |
2414 | } |
2415 | ||
a7f241db LP |
2416 | Unit *unit_following(Unit *u) { |
2417 | assert(u); | |
2418 | ||
2419 | if (UNIT_VTABLE(u)->following) | |
2420 | return UNIT_VTABLE(u)->following(u); | |
2421 | ||
2422 | return NULL; | |
2423 | } | |
2424 | ||
31afa0a4 | 2425 | bool unit_stop_pending(Unit *u) { |
18ffdfda LP |
2426 | assert(u); |
2427 | ||
31afa0a4 LP |
2428 | /* This call does check the current state of the unit. It's |
2429 | * hence useful to be called from state change calls of the | |
2430 | * unit itself, where the state isn't updated yet. This is | |
2431 | * different from unit_inactive_or_pending() which checks both | |
2432 | * the current state and for a queued job. */ | |
18ffdfda | 2433 | |
31afa0a4 LP |
2434 | return u->job && u->job->type == JOB_STOP; |
2435 | } | |
2436 | ||
2437 | bool unit_inactive_or_pending(Unit *u) { | |
2438 | assert(u); | |
2439 | ||
2440 | /* Returns true if the unit is inactive or going down */ | |
18ffdfda | 2441 | |
d956ac29 LP |
2442 | if (UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(u))) |
2443 | return true; | |
2444 | ||
31afa0a4 | 2445 | if (unit_stop_pending(u)) |
18ffdfda LP |
2446 | return true; |
2447 | ||
2448 | return false; | |
2449 | } | |
2450 | ||
31afa0a4 | 2451 | bool unit_active_or_pending(Unit *u) { |
f976f3f6 LP |
2452 | assert(u); |
2453 | ||
f60c2665 | 2454 | /* Returns true if the unit is active or going up */ |
f976f3f6 LP |
2455 | |
2456 | if (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u))) | |
2457 | return true; | |
2458 | ||
ac155bb8 MS |
2459 | if (u->job && |
2460 | (u->job->type == JOB_START || | |
2461 | u->job->type == JOB_RELOAD_OR_START || | |
2462 | u->job->type == JOB_RESTART)) | |
f976f3f6 LP |
2463 | return true; |
2464 | ||
2465 | return false; | |
2466 | } | |
2467 | ||
718db961 | 2468 | int unit_kill(Unit *u, KillWho w, int signo, sd_bus_error *error) { |
8a0867d6 LP |
2469 | assert(u); |
2470 | assert(w >= 0 && w < _KILL_WHO_MAX); | |
8a0867d6 LP |
2471 | assert(signo > 0); |
2472 | assert(signo < _NSIG); | |
2473 | ||
8a0867d6 LP |
2474 | if (!UNIT_VTABLE(u)->kill) |
2475 | return -ENOTSUP; | |
2476 | ||
c74f17d9 | 2477 | return UNIT_VTABLE(u)->kill(u, w, signo, error); |
8a0867d6 LP |
2478 | } |
2479 | ||
82659fd7 LP |
2480 | static Set *unit_pid_set(pid_t main_pid, pid_t control_pid) { |
2481 | Set *pid_set; | |
2482 | int r; | |
2483 | ||
2484 | pid_set = set_new(trivial_hash_func, trivial_compare_func); | |
2485 | if (!pid_set) | |
2486 | return NULL; | |
2487 | ||
2488 | /* Exclude the main/control pids from being killed via the cgroup */ | |
2489 | if (main_pid > 0) { | |
2490 | r = set_put(pid_set, LONG_TO_PTR(main_pid)); | |
2491 | if (r < 0) | |
2492 | goto fail; | |
2493 | } | |
2494 | ||
2495 | if (control_pid > 0) { | |
2496 | r = set_put(pid_set, LONG_TO_PTR(control_pid)); | |
2497 | if (r < 0) | |
2498 | goto fail; | |
2499 | } | |
2500 | ||
2501 | return pid_set; | |
2502 | ||
2503 | fail: | |
2504 | set_free(pid_set); | |
2505 | return NULL; | |
2506 | } | |
2507 | ||
d91c34f2 LP |
2508 | int unit_kill_common( |
2509 | Unit *u, | |
2510 | KillWho who, | |
2511 | int signo, | |
2512 | pid_t main_pid, | |
2513 | pid_t control_pid, | |
718db961 | 2514 | sd_bus_error *error) { |
d91c34f2 | 2515 | |
814cc562 MS |
2516 | int r = 0; |
2517 | ||
2518 | if (who == KILL_MAIN && main_pid <= 0) { | |
2519 | if (main_pid < 0) | |
718db961 | 2520 | sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no main processes", unit_type_to_string(u->type)); |
814cc562 | 2521 | else |
718db961 | 2522 | sd_bus_error_set_const(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill"); |
814cc562 MS |
2523 | return -ESRCH; |
2524 | } | |
2525 | ||
2526 | if (who == KILL_CONTROL && control_pid <= 0) { | |
2527 | if (control_pid < 0) | |
718db961 | 2528 | sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no control processes", unit_type_to_string(u->type)); |
814cc562 | 2529 | else |
718db961 | 2530 | sd_bus_error_set_const(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill"); |
814cc562 MS |
2531 | return -ESRCH; |
2532 | } | |
2533 | ||
2534 | if (who == KILL_CONTROL || who == KILL_ALL) | |
2535 | if (control_pid > 0) | |
2536 | if (kill(control_pid, signo) < 0) | |
2537 | r = -errno; | |
2538 | ||
2539 | if (who == KILL_MAIN || who == KILL_ALL) | |
2540 | if (main_pid > 0) | |
2541 | if (kill(main_pid, signo) < 0) | |
2542 | r = -errno; | |
2543 | ||
4ad49000 | 2544 | if (who == KILL_ALL && u->cgroup_path) { |
814cc562 MS |
2545 | _cleanup_set_free_ Set *pid_set = NULL; |
2546 | int q; | |
2547 | ||
82659fd7 LP |
2548 | /* Exclude the main/control pids from being killed via the cgroup */ |
2549 | pid_set = unit_pid_set(main_pid, control_pid); | |
814cc562 MS |
2550 | if (!pid_set) |
2551 | return -ENOMEM; | |
2552 | ||
4ad49000 | 2553 | q = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, signo, false, true, false, pid_set); |
814cc562 MS |
2554 | if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT) |
2555 | r = q; | |
2556 | } | |
2557 | ||
2558 | return r; | |
2559 | } | |
2560 | ||
6210e7fc LP |
2561 | int unit_following_set(Unit *u, Set **s) { |
2562 | assert(u); | |
2563 | assert(s); | |
2564 | ||
2565 | if (UNIT_VTABLE(u)->following_set) | |
2566 | return UNIT_VTABLE(u)->following_set(u, s); | |
2567 | ||
2568 | *s = NULL; | |
2569 | return 0; | |
2570 | } | |
2571 | ||
a4375746 LP |
2572 | UnitFileState unit_get_unit_file_state(Unit *u) { |
2573 | assert(u); | |
2574 | ||
ac155bb8 MS |
2575 | if (u->unit_file_state < 0 && u->fragment_path) |
2576 | u->unit_file_state = unit_file_get_state( | |
67445f4e | 2577 | u->manager->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER, |
9eb977db | 2578 | NULL, path_get_file_name(u->fragment_path)); |
a4375746 | 2579 | |
ac155bb8 | 2580 | return u->unit_file_state; |
a4375746 LP |
2581 | } |
2582 | ||
57020a3a LP |
2583 | Unit* unit_ref_set(UnitRef *ref, Unit *u) { |
2584 | assert(ref); | |
2585 | assert(u); | |
2586 | ||
2587 | if (ref->unit) | |
2588 | unit_ref_unset(ref); | |
2589 | ||
2590 | ref->unit = u; | |
71fda00f | 2591 | LIST_PREPEND(refs, u->refs, ref); |
57020a3a LP |
2592 | return u; |
2593 | } | |
2594 | ||
2595 | void unit_ref_unset(UnitRef *ref) { | |
2596 | assert(ref); | |
2597 | ||
2598 | if (!ref->unit) | |
2599 | return; | |
2600 | ||
71fda00f | 2601 | LIST_REMOVE(refs, ref->unit->refs, ref); |
57020a3a LP |
2602 | ref->unit = NULL; |
2603 | } | |
2604 | ||
cba6e062 LP |
2605 | int unit_exec_context_defaults(Unit *u, ExecContext *c) { |
2606 | unsigned i; | |
2607 | int r; | |
2608 | ||
e06c73cc LP |
2609 | assert(u); |
2610 | assert(c); | |
2611 | ||
cba6e062 | 2612 | /* This only copies in the ones that need memory */ |
cba6e062 LP |
2613 | for (i = 0; i < RLIMIT_NLIMITS; i++) |
2614 | if (u->manager->rlimit[i] && !c->rlimit[i]) { | |
2615 | c->rlimit[i] = newdup(struct rlimit, u->manager->rlimit[i], 1); | |
2616 | if (!c->rlimit[i]) | |
2617 | return -ENOMEM; | |
2618 | } | |
2619 | ||
67445f4e | 2620 | if (u->manager->running_as == SYSTEMD_USER && |
cba6e062 | 2621 | !c->working_directory) { |
e06c73cc | 2622 | |
cba6e062 LP |
2623 | r = get_home_dir(&c->working_directory); |
2624 | if (r < 0) | |
2625 | return r; | |
2626 | } | |
2627 | ||
2628 | return 0; | |
e06c73cc LP |
2629 | } |
2630 | ||
3ef63c31 LP |
2631 | ExecContext *unit_get_exec_context(Unit *u) { |
2632 | size_t offset; | |
2633 | assert(u); | |
2634 | ||
2635 | offset = UNIT_VTABLE(u)->exec_context_offset; | |
2636 | if (offset <= 0) | |
2637 | return NULL; | |
2638 | ||
2639 | return (ExecContext*) ((uint8_t*) u + offset); | |
2640 | } | |
2641 | ||
718db961 LP |
2642 | KillContext *unit_get_kill_context(Unit *u) { |
2643 | size_t offset; | |
2644 | assert(u); | |
2645 | ||
2646 | offset = UNIT_VTABLE(u)->kill_context_offset; | |
2647 | if (offset <= 0) | |
2648 | return NULL; | |
2649 | ||
2650 | return (KillContext*) ((uint8_t*) u + offset); | |
2651 | } | |
2652 | ||
4ad49000 LP |
2653 | CGroupContext *unit_get_cgroup_context(Unit *u) { |
2654 | size_t offset; | |
2655 | ||
2656 | offset = UNIT_VTABLE(u)->cgroup_context_offset; | |
2657 | if (offset <= 0) | |
2658 | return NULL; | |
2659 | ||
2660 | return (CGroupContext*) ((uint8_t*) u + offset); | |
2661 | } | |
2662 | ||
8e2af478 | 2663 | static int drop_in_file(Unit *u, UnitSetPropertiesMode mode, const char *name, char **_p, char **_q) { |
b9ec9359 | 2664 | _cleanup_free_ char *b = NULL; |
26d04f86 LP |
2665 | char *p, *q; |
2666 | int r; | |
2667 | ||
71645aca | 2668 | assert(u); |
26d04f86 LP |
2669 | assert(name); |
2670 | assert(_p); | |
2671 | assert(_q); | |
8e2af478 | 2672 | assert(mode & (UNIT_PERSISTENT|UNIT_RUNTIME)); |
71645aca | 2673 | |
b9ec9359 LP |
2674 | b = xescape(name, "/."); |
2675 | if (!b) | |
2676 | return -ENOMEM; | |
2677 | ||
2678 | if (!filename_is_safe(b)) | |
71645aca LP |
2679 | return -EINVAL; |
2680 | ||
26d04f86 LP |
2681 | if (u->manager->running_as == SYSTEMD_USER) { |
2682 | _cleanup_free_ char *c = NULL; | |
2683 | ||
2684 | r = user_config_home(&c); | |
2685 | if (r < 0) | |
2686 | return r; | |
2687 | if (r == 0) | |
2688 | return -ENOENT; | |
2689 | ||
2690 | p = strjoin(c, "/", u->id, ".d", NULL); | |
c2756a68 | 2691 | } else if (mode & UNIT_PERSISTENT) |
26d04f86 | 2692 | p = strjoin("/etc/systemd/system/", u->id, ".d", NULL); |
8e2af478 LP |
2693 | else |
2694 | p = strjoin("/run/systemd/system/", u->id, ".d", NULL); | |
71645aca LP |
2695 | if (!p) |
2696 | return -ENOMEM; | |
2697 | ||
b9ec9359 | 2698 | q = strjoin(p, "/90-", b, ".conf", NULL); |
26d04f86 LP |
2699 | if (!q) { |
2700 | free(p); | |
71645aca | 2701 | return -ENOMEM; |
26d04f86 | 2702 | } |
71645aca | 2703 | |
26d04f86 LP |
2704 | *_p = p; |
2705 | *_q = q; | |
2706 | return 0; | |
71645aca LP |
2707 | } |
2708 | ||
8e2af478 | 2709 | int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data) { |
71645aca | 2710 | _cleanup_free_ char *p = NULL, *q = NULL; |
26d04f86 | 2711 | int r; |
71645aca LP |
2712 | |
2713 | assert(u); | |
b42defe3 LP |
2714 | assert(name); |
2715 | assert(data); | |
71645aca | 2716 | |
8e2af478 LP |
2717 | if (!(mode & (UNIT_PERSISTENT|UNIT_RUNTIME))) |
2718 | return 0; | |
2719 | ||
2720 | r = drop_in_file(u, mode, name, &p, &q); | |
26d04f86 LP |
2721 | if (r < 0) |
2722 | return r; | |
71645aca | 2723 | |
26d04f86 | 2724 | mkdir_p(p, 0755); |
574d5f2d | 2725 | return write_string_file_atomic_label(q, data); |
26d04f86 | 2726 | } |
71645aca | 2727 | |
b9ec9359 LP |
2728 | int unit_write_drop_in_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) { |
2729 | _cleanup_free_ char *p = NULL; | |
2730 | va_list ap; | |
2731 | int r; | |
2732 | ||
2733 | assert(u); | |
2734 | assert(name); | |
2735 | assert(format); | |
2736 | ||
2737 | if (!(mode & (UNIT_PERSISTENT|UNIT_RUNTIME))) | |
2738 | return 0; | |
2739 | ||
2740 | va_start(ap, format); | |
2741 | r = vasprintf(&p, format, ap); | |
2742 | va_end(ap); | |
2743 | ||
2744 | if (r < 0) | |
2745 | return -ENOMEM; | |
2746 | ||
2747 | return unit_write_drop_in(u, mode, name, p); | |
2748 | } | |
2749 | ||
2750 | int unit_write_drop_in_private(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data) { | |
b42defe3 LP |
2751 | _cleanup_free_ char *ndata = NULL; |
2752 | ||
2753 | assert(u); | |
2754 | assert(name); | |
2755 | assert(data); | |
2756 | ||
2757 | if (!UNIT_VTABLE(u)->private_section) | |
2758 | return -EINVAL; | |
2759 | ||
b9ec9359 LP |
2760 | if (!(mode & (UNIT_PERSISTENT|UNIT_RUNTIME))) |
2761 | return 0; | |
2762 | ||
b42defe3 LP |
2763 | ndata = strjoin("[", UNIT_VTABLE(u)->private_section, "]\n", data, NULL); |
2764 | if (!ndata) | |
2765 | return -ENOMEM; | |
2766 | ||
2767 | return unit_write_drop_in(u, mode, name, ndata); | |
2768 | } | |
2769 | ||
b9ec9359 LP |
2770 | int unit_write_drop_in_private_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) { |
2771 | _cleanup_free_ char *p = NULL; | |
2772 | va_list ap; | |
2773 | int r; | |
2774 | ||
2775 | assert(u); | |
2776 | assert(name); | |
2777 | assert(format); | |
2778 | ||
2779 | if (!(mode & (UNIT_PERSISTENT|UNIT_RUNTIME))) | |
2780 | return 0; | |
2781 | ||
2782 | va_start(ap, format); | |
2783 | r = vasprintf(&p, format, ap); | |
2784 | va_end(ap); | |
2785 | ||
2786 | if (r < 0) | |
2787 | return -ENOMEM; | |
2788 | ||
2789 | return unit_write_drop_in_private(u, mode, name, p); | |
2790 | } | |
2791 | ||
8e2af478 | 2792 | int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name) { |
26d04f86 LP |
2793 | _cleanup_free_ char *p = NULL, *q = NULL; |
2794 | int r; | |
71645aca | 2795 | |
26d04f86 | 2796 | assert(u); |
71645aca | 2797 | |
8e2af478 LP |
2798 | if (!(mode & (UNIT_PERSISTENT|UNIT_RUNTIME))) |
2799 | return 0; | |
2800 | ||
2801 | r = drop_in_file(u, mode, name, &p, &q); | |
6891529f ZJS |
2802 | if (r < 0) |
2803 | return r; | |
2804 | ||
71645aca | 2805 | if (unlink(q) < 0) |
241da328 | 2806 | r = errno == ENOENT ? 0 : -errno; |
26d04f86 | 2807 | else |
241da328 | 2808 | r = 1; |
71645aca LP |
2809 | |
2810 | rmdir(p); | |
26d04f86 | 2811 | return r; |
71645aca LP |
2812 | } |
2813 | ||
c2756a68 LP |
2814 | int unit_make_transient(Unit *u) { |
2815 | int r; | |
2816 | ||
2817 | assert(u); | |
2818 | ||
2819 | u->load_state = UNIT_STUB; | |
2820 | u->load_error = 0; | |
2821 | u->transient = true; | |
2822 | ||
2823 | free(u->fragment_path); | |
2824 | u->fragment_path = NULL; | |
2825 | ||
2826 | if (u->manager->running_as == SYSTEMD_USER) { | |
2827 | _cleanup_free_ char *c = NULL; | |
2828 | ||
2829 | r = user_config_home(&c); | |
2830 | if (r < 0) | |
2831 | return r; | |
2832 | if (r == 0) | |
2833 | return -ENOENT; | |
2834 | ||
2835 | u->fragment_path = strjoin(c, "/", u->id, NULL); | |
2836 | if (!u->fragment_path) | |
2837 | return -ENOMEM; | |
2838 | ||
2839 | mkdir_p(c, 0755); | |
2840 | } else { | |
2841 | u->fragment_path = strappend("/run/systemd/system/", u->id); | |
2842 | if (!u->fragment_path) | |
2843 | return -ENOMEM; | |
2844 | ||
2845 | mkdir_p("/run/systemd/system", 0755); | |
2846 | } | |
2847 | ||
2848 | return write_string_file_atomic_label(u->fragment_path, "# Transient stub"); | |
2849 | } | |
2850 | ||
cd2086fe LP |
2851 | int unit_kill_context( |
2852 | Unit *u, | |
2853 | KillContext *c, | |
2854 | bool sigkill, | |
2855 | pid_t main_pid, | |
2856 | pid_t control_pid, | |
2857 | bool main_pid_alien) { | |
2858 | ||
2859 | int sig, wait_for_exit = 0, r; | |
2860 | ||
2861 | assert(u); | |
2862 | assert(c); | |
2863 | ||
2864 | if (c->kill_mode == KILL_NONE) | |
2865 | return 0; | |
2866 | ||
2867 | sig = sigkill ? SIGKILL : c->kill_signal; | |
2868 | ||
2869 | if (main_pid > 0) { | |
2870 | r = kill_and_sigcont(main_pid, sig); | |
2871 | ||
2872 | if (r < 0 && r != -ESRCH) { | |
2873 | _cleanup_free_ char *comm = NULL; | |
2874 | get_process_comm(main_pid, &comm); | |
2875 | ||
2876 | log_warning_unit(u->id, "Failed to kill main process %li (%s): %s", | |
2877 | (long) main_pid, strna(comm), strerror(-r)); | |
82659fd7 | 2878 | } else { |
cd2086fe | 2879 | wait_for_exit = !main_pid_alien; |
82659fd7 LP |
2880 | |
2881 | if (c->send_sighup) | |
2882 | kill(main_pid, SIGHUP); | |
2883 | } | |
cd2086fe LP |
2884 | } |
2885 | ||
2886 | if (control_pid > 0) { | |
2887 | r = kill_and_sigcont(control_pid, sig); | |
2888 | ||
2889 | if (r < 0 && r != -ESRCH) { | |
2890 | _cleanup_free_ char *comm = NULL; | |
2891 | get_process_comm(control_pid, &comm); | |
2892 | ||
2893 | log_warning_unit(u->id, | |
2894 | "Failed to kill control process %li (%s): %s", | |
2895 | (long) control_pid, strna(comm), strerror(-r)); | |
82659fd7 | 2896 | } else { |
cd2086fe | 2897 | wait_for_exit = true; |
82659fd7 LP |
2898 | |
2899 | if (c->send_sighup) | |
2900 | kill(control_pid, SIGHUP); | |
2901 | } | |
cd2086fe LP |
2902 | } |
2903 | ||
4ad49000 | 2904 | if (c->kill_mode == KILL_CONTROL_GROUP && u->cgroup_path) { |
cd2086fe LP |
2905 | _cleanup_set_free_ Set *pid_set = NULL; |
2906 | ||
82659fd7 LP |
2907 | /* Exclude the main/control pids from being killed via the cgroup */ |
2908 | pid_set = unit_pid_set(main_pid, control_pid); | |
cd2086fe LP |
2909 | if (!pid_set) |
2910 | return -ENOMEM; | |
2911 | ||
4ad49000 | 2912 | r = cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, sig, true, true, false, pid_set); |
cd2086fe LP |
2913 | if (r < 0) { |
2914 | if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) | |
2915 | log_warning_unit(u->id, "Failed to kill control group: %s", strerror(-r)); | |
82659fd7 | 2916 | } else if (r > 0) { |
cd2086fe | 2917 | wait_for_exit = true; |
82659fd7 LP |
2918 | if (c->send_sighup) { |
2919 | set_free(pid_set); | |
2920 | ||
2921 | pid_set = unit_pid_set(main_pid, control_pid); | |
2922 | if (!pid_set) | |
2923 | return -ENOMEM; | |
2924 | ||
2925 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, SIGHUP, true, true, false, pid_set); | |
2926 | } | |
2927 | } | |
cd2086fe LP |
2928 | } |
2929 | ||
2930 | return wait_for_exit; | |
2931 | } | |
2932 | ||
a57f7e2c LP |
2933 | int unit_require_mounts_for(Unit *u, const char *path) { |
2934 | char prefix[strlen(path) + 1], *p; | |
2935 | int r; | |
2936 | ||
2937 | assert(u); | |
2938 | assert(path); | |
2939 | ||
2940 | /* Registers a unit for requiring a certain path and all its | |
2941 | * prefixes. We keep a simple array of these paths in the | |
2942 | * unit, since its usually short. However, we build a prefix | |
2943 | * table for all possible prefixes so that new appearing mount | |
2944 | * units can easily determine which units to make themselves a | |
2945 | * dependency of. */ | |
2946 | ||
2947 | p = strdup(path); | |
2948 | if (!p) | |
2949 | return -ENOMEM; | |
2950 | ||
2951 | path_kill_slashes(p); | |
2952 | ||
2953 | if (!path_is_absolute(p)) { | |
2954 | free(p); | |
2955 | return -EINVAL; | |
2956 | } | |
2957 | ||
2958 | if (!path_is_safe(p)) { | |
2959 | free(p); | |
2960 | return -EPERM; | |
2961 | } | |
2962 | ||
2963 | if (strv_contains(u->requires_mounts_for, p)) { | |
2964 | free(p); | |
2965 | return 0; | |
2966 | } | |
2967 | ||
2968 | r = strv_push(&u->requires_mounts_for, p); | |
2969 | if (r < 0) { | |
2970 | free(p); | |
2971 | return r; | |
2972 | } | |
2973 | ||
2974 | PATH_FOREACH_PREFIX_MORE(prefix, p) { | |
2975 | Set *x; | |
2976 | ||
2977 | x = hashmap_get(u->manager->units_requiring_mounts_for, prefix); | |
2978 | if (!x) { | |
2979 | char *q; | |
2980 | ||
2981 | if (!u->manager->units_requiring_mounts_for) { | |
2982 | u->manager->units_requiring_mounts_for = hashmap_new(string_hash_func, string_compare_func); | |
2983 | if (!u->manager->units_requiring_mounts_for) | |
2984 | return -ENOMEM; | |
2985 | } | |
2986 | ||
2987 | q = strdup(prefix); | |
2988 | if (!q) | |
2989 | return -ENOMEM; | |
2990 | ||
2991 | x = set_new(NULL, NULL); | |
2992 | if (!x) { | |
2993 | free(q); | |
2994 | return -ENOMEM; | |
2995 | } | |
2996 | ||
2997 | r = hashmap_put(u->manager->units_requiring_mounts_for, q, x); | |
2998 | if (r < 0) { | |
2999 | free(q); | |
3000 | set_free(x); | |
3001 | return r; | |
3002 | } | |
3003 | } | |
3004 | ||
3005 | r = set_put(x, u); | |
3006 | if (r < 0) | |
3007 | return r; | |
3008 | } | |
3009 | ||
3010 | return 0; | |
3011 | } | |
3012 | ||
94f04347 LP |
3013 | static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = { |
3014 | [UNIT_ACTIVE] = "active", | |
032ff4af | 3015 | [UNIT_RELOADING] = "reloading", |
94f04347 | 3016 | [UNIT_INACTIVE] = "inactive", |
fdf20a31 | 3017 | [UNIT_FAILED] = "failed", |
94f04347 LP |
3018 | [UNIT_ACTIVATING] = "activating", |
3019 | [UNIT_DEACTIVATING] = "deactivating" | |
3020 | }; | |
3021 | ||
3022 | DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState); | |
3023 | ||
3024 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { | |
3025 | [UNIT_REQUIRES] = "Requires", | |
9e2f7c11 | 3026 | [UNIT_REQUIRES_OVERRIDABLE] = "RequiresOverridable", |
94f04347 | 3027 | [UNIT_REQUISITE] = "Requisite", |
9e2f7c11 | 3028 | [UNIT_REQUISITE_OVERRIDABLE] = "RequisiteOverridable", |
ac6a4abe MS |
3029 | [UNIT_WANTS] = "Wants", |
3030 | [UNIT_BINDS_TO] = "BindsTo", | |
3031 | [UNIT_PART_OF] = "PartOf", | |
94f04347 | 3032 | [UNIT_REQUIRED_BY] = "RequiredBy", |
9e2f7c11 | 3033 | [UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable", |
94f04347 | 3034 | [UNIT_WANTED_BY] = "WantedBy", |
ac6a4abe MS |
3035 | [UNIT_BOUND_BY] = "BoundBy", |
3036 | [UNIT_CONSISTS_OF] = "ConsistsOf", | |
94f04347 | 3037 | [UNIT_CONFLICTS] = "Conflicts", |
69dd2852 | 3038 | [UNIT_CONFLICTED_BY] = "ConflictedBy", |
94f04347 LP |
3039 | [UNIT_BEFORE] = "Before", |
3040 | [UNIT_AFTER] = "After", | |
57020a3a LP |
3041 | [UNIT_ON_FAILURE] = "OnFailure", |
3042 | [UNIT_TRIGGERS] = "Triggers", | |
4dcc1cb4 | 3043 | [UNIT_TRIGGERED_BY] = "TriggeredBy", |
7f2cddae | 3044 | [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo", |
ac6a4abe MS |
3045 | [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom", |
3046 | [UNIT_REFERENCES] = "References", | |
3047 | [UNIT_REFERENCED_BY] = "ReferencedBy", | |
94f04347 LP |
3048 | }; |
3049 | ||
3050 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); |