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Commit | Line | Data |
---|---|---|
5cb5a6ff LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
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 | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
5cb5a6ff | 22 | #include <errno.h> |
034c6ed7 | 23 | #include <signal.h> |
2c4104f0 LP |
24 | #include <dirent.h> |
25 | #include <unistd.h> | |
5cb5a6ff | 26 | |
87f0e418 | 27 | #include "unit.h" |
5cb5a6ff LP |
28 | #include "service.h" |
29 | #include "load-fragment.h" | |
30 | #include "load-dropin.h" | |
034c6ed7 | 31 | #include "log.h" |
2c4104f0 | 32 | #include "strv.h" |
9e2f7c11 | 33 | #include "unit-name.h" |
4139c1b2 | 34 | #include "dbus-service.h" |
2c4104f0 LP |
35 | |
36 | #define COMMENTS "#;\n" | |
37 | #define NEWLINES "\n\r" | |
38 | #define LINE_MAX 4096 | |
034c6ed7 | 39 | |
23a177ef | 40 | static const char * const rcnd_table[] = { |
adcbe07c LP |
41 | "/rc0.d", SPECIAL_RUNLEVEL0_TARGET, |
42 | "/rc1.d", SPECIAL_RUNLEVEL1_TARGET, | |
43 | "/rc2.d", SPECIAL_RUNLEVEL2_TARGET, | |
44 | "/rc3.d", SPECIAL_RUNLEVEL3_TARGET, | |
45 | "/rc4.d", SPECIAL_RUNLEVEL4_TARGET, | |
46 | "/rc5.d", SPECIAL_RUNLEVEL5_TARGET, | |
47 | "/rc6.d", SPECIAL_RUNLEVEL6_TARGET, | |
48 | "/boot.d", SPECIAL_BASIC_TARGET | |
23a177ef LP |
49 | }; |
50 | ||
acbb0225 | 51 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
52 | [SERVICE_DEAD] = UNIT_INACTIVE, |
53 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
54 | [SERVICE_START] = UNIT_ACTIVATING, | |
55 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
56 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 57 | [SERVICE_EXITED] = UNIT_ACTIVE, |
87f0e418 LP |
58 | [SERVICE_RELOAD] = UNIT_ACTIVE_RELOADING, |
59 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
60 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
61 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
62 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
63 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
64 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
65 | [SERVICE_MAINTAINANCE] = UNIT_INACTIVE, | |
66 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, | |
034c6ed7 | 67 | }; |
5cb5a6ff | 68 | |
a16e1123 LP |
69 | static void service_init(Unit *u) { |
70 | Service *s = SERVICE(u); | |
71 | ||
72 | assert(u); | |
73 | assert(u->meta.load_state == UNIT_STUB); | |
74 | ||
75 | s->timeout_usec = DEFAULT_TIMEOUT_USEC; | |
76 | s->restart_usec = DEFAULT_RESTART_USEC; | |
77 | s->timer_watch.type = WATCH_INVALID; | |
78 | s->sysv_start_priority = -1; | |
79 | s->socket_fd = -1; | |
80 | ||
81 | exec_context_init(&s->exec_context); | |
82 | ||
83 | RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5); | |
84 | ||
85 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
86 | } | |
87 | ||
5e94833f LP |
88 | static void service_unwatch_control_pid(Service *s) { |
89 | assert(s); | |
90 | ||
91 | if (s->control_pid <= 0) | |
92 | return; | |
93 | ||
94 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
95 | s->control_pid = 0; | |
96 | } | |
97 | ||
98 | static void service_unwatch_main_pid(Service *s) { | |
99 | assert(s); | |
100 | ||
101 | if (s->main_pid <= 0) | |
102 | return; | |
103 | ||
104 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
105 | s->main_pid = 0; | |
106 | } | |
107 | ||
4f2d528d LP |
108 | static void service_close_socket_fd(Service *s) { |
109 | assert(s); | |
110 | ||
111 | if (s->socket_fd < 0) | |
112 | return; | |
113 | ||
114 | close_nointr_nofail(s->socket_fd); | |
115 | s->socket_fd = -1; | |
116 | } | |
117 | ||
87f0e418 LP |
118 | static void service_done(Unit *u) { |
119 | Service *s = SERVICE(u); | |
44d8db9e LP |
120 | |
121 | assert(s); | |
122 | ||
123 | free(s->pid_file); | |
124 | s->pid_file = NULL; | |
125 | ||
2c4104f0 LP |
126 | free(s->sysv_path); |
127 | s->sysv_path = NULL; | |
128 | ||
8309400a LP |
129 | free(s->sysv_runlevels); |
130 | s->sysv_runlevels = NULL; | |
131 | ||
44d8db9e | 132 | exec_context_done(&s->exec_context); |
e537352b | 133 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e LP |
134 | s->control_command = NULL; |
135 | ||
136 | /* This will leak a process, but at least no memory or any of | |
137 | * our resources */ | |
5e94833f LP |
138 | service_unwatch_main_pid(s); |
139 | service_unwatch_control_pid(s); | |
44d8db9e | 140 | |
05e343b7 LP |
141 | if (s->bus_name) { |
142 | unit_unwatch_bus_name(UNIT(u), s->bus_name); | |
143 | free(s->bus_name); | |
144 | s->bus_name = NULL; | |
145 | } | |
146 | ||
4f2d528d LP |
147 | service_close_socket_fd(s); |
148 | ||
acbb0225 | 149 | unit_unwatch_timer(u, &s->timer_watch); |
44d8db9e LP |
150 | } |
151 | ||
2c4104f0 LP |
152 | static int sysv_translate_name(const char *name, char **_r) { |
153 | ||
154 | static const char * const table[] = { | |
155 | "$local_fs", SPECIAL_LOCAL_FS_TARGET, | |
156 | "$network", SPECIAL_NETWORK_TARGET, | |
157 | "$named", SPECIAL_NSS_LOOKUP_TARGET, | |
158 | "$portmap", SPECIAL_RPCBIND_TARGET, | |
159 | "$remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
160 | "$syslog", SPECIAL_SYSLOG_TARGET, | |
161 | "$time", SPECIAL_RTC_SET_TARGET | |
162 | }; | |
163 | ||
164 | unsigned i; | |
165 | char *r; | |
166 | ||
167 | for (i = 0; i < ELEMENTSOF(table); i += 2) | |
168 | if (streq(table[i], name)) { | |
169 | if (!(r = strdup(table[i+1]))) | |
170 | return -ENOMEM; | |
171 | ||
172 | goto finish; | |
173 | } | |
174 | ||
175 | if (*name == '$') | |
176 | return 0; | |
177 | ||
178 | if (asprintf(&r, "%s.service", name) < 0) | |
179 | return -ENOMEM; | |
180 | ||
181 | finish: | |
182 | ||
183 | if (_r) | |
184 | *_r = r; | |
185 | ||
186 | return 1; | |
187 | } | |
188 | ||
189 | static int sysv_chkconfig_order(Service *s) { | |
190 | Meta *other; | |
191 | int r; | |
192 | ||
193 | assert(s); | |
194 | ||
195 | if (s->sysv_start_priority < 0) | |
196 | return 0; | |
197 | ||
23a177ef LP |
198 | /* For each pair of services where at least one lacks a LSB |
199 | * header, we use the start priority value to order things. */ | |
2c4104f0 LP |
200 | |
201 | LIST_FOREACH(units_per_type, other, UNIT(s)->meta.manager->units_per_type[UNIT_SERVICE]) { | |
202 | Service *t; | |
203 | UnitDependency d; | |
204 | ||
205 | t = (Service*) other; | |
206 | ||
207 | if (s == t) | |
208 | continue; | |
209 | ||
210 | if (t->sysv_start_priority < 0) | |
211 | continue; | |
212 | ||
51a1a79d LP |
213 | /* If both units have modern headers we don't care |
214 | * about the priorities */ | |
215 | if ((!s->sysv_path || s->sysv_has_lsb) && | |
216 | (!t->sysv_path || t->sysv_has_lsb)) | |
23a177ef LP |
217 | continue; |
218 | ||
2c4104f0 LP |
219 | if (t->sysv_start_priority < s->sysv_start_priority) |
220 | d = UNIT_AFTER; | |
221 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
222 | d = UNIT_BEFORE; | |
223 | else | |
224 | continue; | |
225 | ||
226 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
227 | ||
701cc384 | 228 | if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
2c4104f0 LP |
229 | return r; |
230 | } | |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
235 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
236 | ExecCommand *c; | |
237 | ||
238 | if (!(c = new0(ExecCommand, 1))) | |
239 | return NULL; | |
240 | ||
241 | if (!(c->path = strdup(path))) { | |
242 | free(c); | |
243 | return NULL; | |
244 | } | |
245 | ||
246 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
247 | free(c->path); | |
248 | free(c); | |
249 | return NULL; | |
250 | } | |
251 | ||
252 | return c; | |
253 | } | |
254 | ||
255 | static int sysv_exec_commands(Service *s) { | |
256 | ExecCommand *c; | |
257 | ||
258 | assert(s); | |
259 | assert(s->sysv_path); | |
260 | ||
261 | if (!(c = exec_command_new(s->sysv_path, "start"))) | |
262 | return -ENOMEM; | |
263 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
264 | ||
265 | if (!(c = exec_command_new(s->sysv_path, "stop"))) | |
266 | return -ENOMEM; | |
267 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
268 | ||
269 | if (!(c = exec_command_new(s->sysv_path, "reload"))) | |
270 | return -ENOMEM; | |
271 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
23a177ef LP |
276 | static int priority_from_rcd(Service *s, const char *init_script) { |
277 | char **p; | |
278 | unsigned i; | |
279 | ||
061978fa | 280 | STRV_FOREACH(p, UNIT(s)->meta.manager->sysvrcnd_path) |
23a177ef LP |
281 | for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { |
282 | char *path; | |
283 | DIR *d; | |
284 | struct dirent *de; | |
285 | ||
286 | if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) | |
287 | return -ENOMEM; | |
288 | ||
289 | d = opendir(path); | |
290 | free(path); | |
291 | ||
292 | if (!d) { | |
293 | if (errno != ENOENT) | |
294 | log_warning("opendir() failed on %s: %s", path, strerror(errno)); | |
295 | ||
296 | continue; | |
297 | } | |
298 | ||
299 | while ((de = readdir(d))) { | |
300 | int a, b; | |
301 | ||
302 | if (ignore_file(de->d_name)) | |
303 | continue; | |
304 | ||
305 | if (de->d_name[0] != 'S') | |
306 | continue; | |
307 | ||
308 | if (strlen(de->d_name) < 4) | |
309 | continue; | |
310 | ||
311 | if (!streq(de->d_name + 3, init_script)) | |
312 | continue; | |
313 | ||
314 | /* Yay, we found it! Now decode the priority */ | |
315 | ||
316 | a = undecchar(de->d_name[1]); | |
317 | b = undecchar(de->d_name[2]); | |
318 | ||
319 | if (a < 0 || b < 0) | |
320 | continue; | |
321 | ||
322 | s->sysv_start_priority = a*10 + b; | |
323 | ||
9e2f7c11 | 324 | log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, UNIT(s)->meta.id); |
23a177ef LP |
325 | |
326 | closedir(d); | |
327 | return 0; | |
328 | } | |
329 | ||
330 | closedir(d); | |
331 | } | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
e537352b | 336 | static int service_load_sysv_path(Service *s, const char *path) { |
2c4104f0 LP |
337 | FILE *f; |
338 | Unit *u; | |
339 | unsigned line = 0; | |
340 | int r; | |
341 | enum { | |
342 | NORMAL, | |
343 | DESCRIPTION, | |
344 | LSB, | |
345 | LSB_DESCRIPTION | |
346 | } state = NORMAL; | |
23a177ef LP |
347 | |
348 | assert(s); | |
349 | assert(path); | |
2c4104f0 LP |
350 | |
351 | u = UNIT(s); | |
352 | ||
353 | if (!(f = fopen(path, "re"))) { | |
354 | r = errno == ENOENT ? 0 : -errno; | |
355 | goto finish; | |
356 | } | |
357 | ||
358 | s->type = SERVICE_FORKING; | |
359 | s->restart = SERVICE_ONCE; | |
360 | ||
361 | free(s->sysv_path); | |
362 | if (!(s->sysv_path = strdup(path))) { | |
363 | r = -ENOMEM; | |
364 | goto finish; | |
365 | } | |
366 | ||
367 | while (!feof(f)) { | |
368 | char l[LINE_MAX], *t; | |
369 | ||
370 | if (!fgets(l, sizeof(l), f)) { | |
371 | if (feof(f)) | |
372 | break; | |
373 | ||
374 | r = -errno; | |
375 | log_error("Failed to read configuration file '%s': %s", path, strerror(-r)); | |
376 | goto finish; | |
377 | } | |
378 | ||
379 | line++; | |
380 | ||
381 | t = strstrip(l); | |
382 | if (*t != '#') | |
383 | continue; | |
384 | ||
385 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
386 | state = LSB; | |
23a177ef | 387 | s->sysv_has_lsb = true; |
2c4104f0 LP |
388 | continue; |
389 | } | |
390 | ||
391 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
392 | state = NORMAL; | |
393 | continue; | |
394 | } | |
395 | ||
396 | t++; | |
397 | t += strspn(t, WHITESPACE); | |
398 | ||
399 | if (state == NORMAL) { | |
400 | ||
401 | /* Try to parse Red Hat style chkconfig headers */ | |
402 | ||
403 | if (startswith(t, "chkconfig:")) { | |
404 | int start_priority; | |
8309400a | 405 | char runlevels[16], *k; |
2c4104f0 LP |
406 | |
407 | state = NORMAL; | |
408 | ||
8309400a LP |
409 | if (sscanf(t+10, "%15s %i %*i", |
410 | runlevels, | |
411 | &start_priority) != 2) { | |
2c4104f0 LP |
412 | |
413 | log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line); | |
414 | continue; | |
415 | } | |
416 | ||
8309400a | 417 | if (start_priority < 0 || start_priority > 99) |
2c4104f0 | 418 | log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); |
8309400a LP |
419 | else |
420 | s->sysv_start_priority = start_priority; | |
421 | ||
422 | char_array_0(runlevels); | |
423 | k = delete_chars(runlevels, WHITESPACE "-"); | |
424 | ||
425 | if (k[0]) { | |
426 | char *d; | |
427 | ||
428 | if (!(d = strdup(k))) { | |
429 | r = -ENOMEM; | |
430 | goto finish; | |
431 | } | |
432 | ||
433 | free(s->sysv_runlevels); | |
434 | s->sysv_runlevels = d; | |
2c4104f0 LP |
435 | } |
436 | ||
2c4104f0 LP |
437 | |
438 | } else if (startswith(t, "description:")) { | |
439 | ||
440 | size_t k = strlen(t); | |
441 | char *d; | |
442 | ||
443 | if (t[k-1] == '\\') { | |
444 | state = DESCRIPTION; | |
445 | t[k-1] = 0; | |
446 | } | |
447 | ||
448 | if (!(d = strdup(strstrip(t+12)))) { | |
449 | r = -ENOMEM; | |
450 | goto finish; | |
451 | } | |
452 | ||
453 | free(u->meta.description); | |
454 | u->meta.description = d; | |
455 | ||
456 | } else if (startswith(t, "pidfile:")) { | |
457 | ||
458 | char *fn; | |
459 | ||
460 | state = NORMAL; | |
461 | ||
462 | fn = strstrip(t+8); | |
463 | if (!path_is_absolute(fn)) { | |
464 | log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line); | |
465 | continue; | |
466 | } | |
467 | ||
468 | if (!(fn = strdup(fn))) { | |
469 | r = -ENOMEM; | |
470 | goto finish; | |
471 | } | |
472 | ||
473 | free(s->pid_file); | |
474 | s->pid_file = fn; | |
475 | } | |
476 | ||
477 | } else if (state == DESCRIPTION) { | |
478 | ||
479 | /* Try to parse Red Hat style description | |
480 | * continuation */ | |
481 | ||
482 | size_t k = strlen(t); | |
483 | char *d; | |
484 | ||
485 | if (t[k-1] == '\\') | |
486 | t[k-1] = 0; | |
487 | else | |
488 | state = NORMAL; | |
489 | ||
490 | assert(u->meta.description); | |
491 | if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) { | |
492 | r = -ENOMEM; | |
493 | goto finish; | |
494 | } | |
495 | ||
496 | free(u->meta.description); | |
497 | u->meta.description = d; | |
498 | ||
499 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
500 | ||
501 | if (startswith(t, "Provides:")) { | |
502 | char *i, *w; | |
503 | size_t z; | |
504 | ||
505 | state = LSB; | |
506 | ||
507 | FOREACH_WORD(w, z, t+9, i) { | |
508 | char *n, *m; | |
509 | ||
510 | if (!(n = strndup(w, z))) { | |
511 | r = -ENOMEM; | |
512 | goto finish; | |
513 | } | |
514 | ||
515 | r = sysv_translate_name(n, &m); | |
516 | free(n); | |
517 | ||
518 | if (r < 0) | |
519 | goto finish; | |
520 | ||
521 | if (r == 0) | |
522 | continue; | |
523 | ||
bd77d0fc LP |
524 | if (unit_name_to_type(m) == UNIT_SERVICE) |
525 | r = unit_add_name(u, m); | |
526 | else { | |
701cc384 LP |
527 | if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL, true)) >= 0) |
528 | r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true); | |
bd77d0fc LP |
529 | } |
530 | ||
2c4104f0 LP |
531 | free(m); |
532 | ||
533 | if (r < 0) | |
534 | goto finish; | |
535 | } | |
536 | ||
537 | } else if (startswith(t, "Required-Start:") || | |
538 | startswith(t, "Should-Start:")) { | |
539 | char *i, *w; | |
540 | size_t z; | |
541 | ||
542 | state = LSB; | |
543 | ||
544 | FOREACH_WORD(w, z, strchr(t, ':')+1, i) { | |
545 | char *n, *m; | |
546 | ||
547 | if (!(n = strndup(w, z))) { | |
548 | r = -ENOMEM; | |
549 | goto finish; | |
550 | } | |
551 | ||
552 | r = sysv_translate_name(n, &m); | |
553 | free(n); | |
554 | ||
555 | if (r < 0) | |
556 | goto finish; | |
557 | ||
558 | if (r == 0) | |
559 | continue; | |
560 | ||
701cc384 | 561 | r = unit_add_dependency_by_name(u, UNIT_AFTER, m, NULL, true); |
2c4104f0 LP |
562 | free(m); |
563 | ||
564 | if (r < 0) | |
565 | goto finish; | |
566 | } | |
8309400a LP |
567 | } else if (startswith(t, "Default-Start:")) { |
568 | char *k, *d; | |
569 | ||
570 | state = LSB; | |
571 | ||
572 | k = delete_chars(t+14, WHITESPACE "-"); | |
573 | ||
574 | if (k[0] != 0) { | |
575 | if (!(d = strdup(k))) { | |
576 | r = -ENOMEM; | |
577 | goto finish; | |
578 | } | |
579 | ||
580 | free(s->sysv_runlevels); | |
581 | s->sysv_runlevels = d; | |
582 | } | |
2c4104f0 LP |
583 | |
584 | } else if (startswith(t, "Description:")) { | |
585 | char *d; | |
586 | ||
587 | state = LSB_DESCRIPTION; | |
588 | ||
589 | if (!(d = strdup(strstrip(t+12)))) { | |
590 | r = -ENOMEM; | |
591 | goto finish; | |
592 | } | |
593 | ||
594 | free(u->meta.description); | |
595 | u->meta.description = d; | |
596 | ||
8309400a LP |
597 | } else if (startswith(t, "Short-Description:") && |
598 | !u->meta.description) { | |
2c4104f0 LP |
599 | char *d; |
600 | ||
601 | /* We use the short description only | |
602 | * if no long description is set. */ | |
603 | ||
604 | state = LSB; | |
605 | ||
606 | if (!(d = strdup(strstrip(t+18)))) { | |
607 | r = -ENOMEM; | |
608 | goto finish; | |
609 | } | |
610 | ||
2c4104f0 LP |
611 | u->meta.description = d; |
612 | ||
613 | } else if (state == LSB_DESCRIPTION) { | |
614 | ||
615 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
616 | char *d; | |
617 | ||
618 | assert(u->meta.description); | |
619 | if (asprintf(&d, "%s %s", u->meta.description, t) < 0) { | |
620 | r = -ENOMEM; | |
621 | goto finish; | |
622 | } | |
623 | ||
624 | free(u->meta.description); | |
625 | u->meta.description = d; | |
626 | } else | |
627 | state = LSB; | |
628 | } | |
629 | } | |
630 | } | |
631 | ||
23a177ef LP |
632 | /* If init scripts have no LSB header, then we enforce the |
633 | * ordering via the chkconfig priorities. We try to determine | |
634 | * a priority for *all* init scripts here, since they are | |
635 | * needed as soon as at least one non-LSB script is used. */ | |
2c4104f0 | 636 | |
23a177ef | 637 | if (s->sysv_start_priority < 0) { |
9e2f7c11 | 638 | log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", u->meta.id); |
23a177ef LP |
639 | |
640 | if ((r = priority_from_rcd(s, file_name_from_path(path))) < 0) | |
2c4104f0 LP |
641 | goto finish; |
642 | ||
23a177ef | 643 | if (s->sysv_start_priority < 0) |
9e2f7c11 | 644 | log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", u->meta.id); |
23a177ef LP |
645 | } |
646 | ||
2c4104f0 LP |
647 | if ((r = sysv_exec_commands(s)) < 0) |
648 | goto finish; | |
649 | ||
0bc824be LP |
650 | if (!s->sysv_runlevels || chars_intersect("12345", s->sysv_runlevels)) { |
651 | /* If there a runlevels configured for this service | |
652 | * but none of the standard ones, then we assume this | |
653 | * is some special kind of service (which might be | |
654 | * needed for early boot) and don't create any links | |
655 | * to it. */ | |
656 | ||
701cc384 LP |
657 | if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 || |
658 | (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0) | |
0bc824be LP |
659 | goto finish; |
660 | } | |
0fd030be | 661 | |
80876c20 LP |
662 | /* Special setting for all SysV services */ |
663 | s->valid_no_process = true; | |
664 | ||
90a13a44 | 665 | /* Don't timeout special services during boot (like fsck) */ |
ba8c0bef | 666 | if (s->sysv_runlevels && !chars_intersect("12345", s->sysv_runlevels)) |
90a13a44 LP |
667 | s->timeout_usec = -1; |
668 | ||
e537352b | 669 | u->meta.load_state = UNIT_LOADED; |
23a177ef | 670 | r = 0; |
2c4104f0 LP |
671 | |
672 | finish: | |
673 | ||
674 | if (f) | |
675 | fclose(f); | |
676 | ||
677 | return r; | |
678 | } | |
679 | ||
e537352b | 680 | static int service_load_sysv_name(Service *s, const char *name) { |
2c4104f0 LP |
681 | char **p; |
682 | ||
683 | assert(s); | |
684 | assert(name); | |
685 | ||
686 | STRV_FOREACH(p, UNIT(s)->meta.manager->sysvinit_path) { | |
687 | char *path; | |
688 | int r; | |
689 | ||
690 | if (asprintf(&path, "%s/%s", *p, name) < 0) | |
691 | return -ENOMEM; | |
692 | ||
693 | assert(endswith(path, ".service")); | |
694 | path[strlen(path)-8] = 0; | |
695 | ||
e537352b | 696 | r = service_load_sysv_path(s, path); |
2c4104f0 LP |
697 | free(path); |
698 | ||
23a177ef | 699 | if (r < 0) |
2c4104f0 | 700 | return r; |
23a177ef | 701 | |
e537352b | 702 | if ((UNIT(s)->meta.load_state != UNIT_STUB)) |
23a177ef | 703 | break; |
2c4104f0 LP |
704 | } |
705 | ||
706 | return 0; | |
707 | } | |
708 | ||
e537352b | 709 | static int service_load_sysv(Service *s) { |
2c4104f0 LP |
710 | const char *t; |
711 | Iterator i; | |
712 | int r; | |
713 | ||
5cb5a6ff LP |
714 | assert(s); |
715 | ||
716 | /* Load service data from SysV init scripts, preferably with | |
717 | * LSB headers ... */ | |
718 | ||
2c4104f0 LP |
719 | if (strv_isempty(UNIT(s)->meta.manager->sysvinit_path)) |
720 | return 0; | |
721 | ||
9e2f7c11 | 722 | if ((t = UNIT(s)->meta.id)) |
e537352b | 723 | if ((r = service_load_sysv_name(s, t)) < 0) |
2c4104f0 LP |
724 | return r; |
725 | ||
e537352b | 726 | if (UNIT(s)->meta.load_state == UNIT_STUB) |
23a177ef | 727 | SET_FOREACH(t, UNIT(s)->meta.names, i) { |
9e2f7c11 | 728 | if (t == UNIT(s)->meta.id) |
e537352b LP |
729 | continue; |
730 | ||
731 | if ((r == service_load_sysv_name(s, t)) < 0) | |
23a177ef LP |
732 | return r; |
733 | ||
e537352b | 734 | if (UNIT(s)->meta.load_state != UNIT_STUB) |
23a177ef LP |
735 | break; |
736 | } | |
2c4104f0 LP |
737 | |
738 | return 0; | |
5cb5a6ff LP |
739 | } |
740 | ||
05e343b7 LP |
741 | static int service_add_bus_name(Service *s) { |
742 | char *n; | |
743 | int r; | |
744 | ||
745 | assert(s); | |
746 | assert(s->bus_name); | |
747 | ||
748 | if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0) | |
749 | return 0; | |
750 | ||
751 | r = unit_merge_by_name(UNIT(s), n); | |
752 | free(n); | |
753 | ||
754 | return r; | |
755 | } | |
756 | ||
243b1432 LP |
757 | static int service_verify(Service *s) { |
758 | assert(s); | |
759 | ||
760 | if (UNIT(s)->meta.load_state != UNIT_LOADED) | |
761 | return 0; | |
762 | ||
763 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
9e2f7c11 | 764 | log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->meta.id); |
243b1432 LP |
765 | return -EINVAL; |
766 | } | |
767 | ||
05e343b7 LP |
768 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
769 | log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->meta.id); | |
770 | return -EINVAL; | |
771 | } | |
772 | ||
243b1432 LP |
773 | return 0; |
774 | } | |
775 | ||
e537352b LP |
776 | static int service_load(Unit *u) { |
777 | int r; | |
778 | Service *s = SERVICE(u); | |
779 | ||
780 | assert(s); | |
1e2e8133 | 781 | |
5cb5a6ff | 782 | /* Load a .service file */ |
e537352b | 783 | if ((r = unit_load_fragment(u)) < 0) |
5cb5a6ff LP |
784 | return r; |
785 | ||
bd77d0fc | 786 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
e537352b LP |
787 | if (u->meta.load_state == UNIT_STUB) |
788 | if ((r = service_load_sysv(s)) < 0) | |
23a177ef | 789 | return r; |
d46de8a1 | 790 | |
23a177ef | 791 | /* Still nothing found? Then let's give up */ |
e537352b | 792 | if (u->meta.load_state == UNIT_STUB) |
23a177ef | 793 | return -ENOENT; |
034c6ed7 | 794 | |
23a177ef LP |
795 | /* We were able to load something, then let's add in the |
796 | * dropin directories. */ | |
797 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) | |
8e274523 | 798 | return r; |
23a177ef LP |
799 | |
800 | /* This is a new unit? Then let's add in some extras */ | |
e537352b | 801 | if (u->meta.load_state == UNIT_LOADED) { |
23a177ef LP |
802 | if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) |
803 | return r; | |
804 | ||
805 | if ((r = unit_add_default_cgroup(u)) < 0) | |
806 | return r; | |
807 | ||
808 | if ((r = sysv_chkconfig_order(s)) < 0) | |
809 | return r; | |
05e343b7 LP |
810 | |
811 | if (s->bus_name) { | |
812 | if ((r = service_add_bus_name(s)) < 0) | |
813 | return r; | |
814 | ||
815 | if ((r = unit_watch_bus_name(u, s->bus_name)) < 0) | |
816 | return r; | |
817 | } | |
8e274523 LP |
818 | } |
819 | ||
243b1432 | 820 | return service_verify(s); |
034c6ed7 LP |
821 | } |
822 | ||
87f0e418 | 823 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 824 | |
5cb5a6ff | 825 | ServiceExecCommand c; |
87f0e418 | 826 | Service *s = SERVICE(u); |
47be870b LP |
827 | const char *prefix2; |
828 | char *p2; | |
5cb5a6ff LP |
829 | |
830 | assert(s); | |
831 | ||
47be870b LP |
832 | p2 = strappend(prefix, "\t"); |
833 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 834 | |
5cb5a6ff | 835 | fprintf(f, |
81a2b7ce LP |
836 | "%sService State: %s\n" |
837 | "%sPermissionsStartOnly: %s\n" | |
8e274523 | 838 | "%sRootDirectoryStartOnly: %s\n" |
03d6ab85 | 839 | "%sValidNoProcess: %s\n" |
50159e6a | 840 | "%sKillMode: %s\n" |
03d6ab85 | 841 | "%sType: %s\n", |
81a2b7ce LP |
842 | prefix, service_state_to_string(s->state), |
843 | prefix, yes_no(s->permissions_start_only), | |
8e274523 | 844 | prefix, yes_no(s->root_directory_start_only), |
03d6ab85 | 845 | prefix, yes_no(s->valid_no_process), |
50159e6a | 846 | prefix, kill_mode_to_string(s->kill_mode), |
03d6ab85 | 847 | prefix, service_type_to_string(s->type)); |
5cb5a6ff | 848 | |
70123e68 LP |
849 | if (s->control_pid > 0) |
850 | fprintf(f, | |
851 | "%sControl PID: %llu\n", | |
852 | prefix, (unsigned long long) s->control_pid); | |
853 | ||
854 | if (s->main_pid > 0) | |
855 | fprintf(f, | |
856 | "%sMain PID: %llu\n", | |
857 | prefix, (unsigned long long) s->main_pid); | |
858 | ||
034c6ed7 LP |
859 | if (s->pid_file) |
860 | fprintf(f, | |
861 | "%sPIDFile: %s\n", | |
862 | prefix, s->pid_file); | |
863 | ||
05e343b7 LP |
864 | if (s->bus_name) |
865 | fprintf(f, | |
866 | "%sBusName: %s\n" | |
867 | "%sBus Name Good: %s\n", | |
868 | prefix, s->bus_name, | |
869 | prefix, yes_no(s->bus_name_good)); | |
870 | ||
5cb5a6ff LP |
871 | exec_context_dump(&s->exec_context, f, prefix); |
872 | ||
e537352b | 873 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 874 | |
44d8db9e LP |
875 | if (!s->exec_command[c]) |
876 | continue; | |
877 | ||
878 | fprintf(f, "%s→ %s:\n", | |
94f04347 | 879 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
880 | |
881 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 882 | } |
44d8db9e | 883 | |
2c4104f0 LP |
884 | if (s->sysv_path) |
885 | fprintf(f, | |
23a177ef LP |
886 | "%sSysV Init Script Path: %s\n" |
887 | "%sSysV Init Script has LSB Header: %s\n", | |
888 | prefix, s->sysv_path, | |
889 | prefix, yes_no(s->sysv_has_lsb)); | |
2c4104f0 LP |
890 | |
891 | if (s->sysv_start_priority >= 0) | |
892 | fprintf(f, | |
23a177ef | 893 | "%sSysVStartPriority: %i\n", |
2c4104f0 LP |
894 | prefix, s->sysv_start_priority); |
895 | ||
8309400a LP |
896 | if (s->sysv_runlevels) |
897 | fprintf(f, "%sSysVRunLevels: %s\n", | |
898 | prefix, s->sysv_runlevels); | |
23a177ef | 899 | |
47be870b | 900 | free(p2); |
5cb5a6ff LP |
901 | } |
902 | ||
034c6ed7 LP |
903 | static int service_load_pid_file(Service *s) { |
904 | char *k; | |
905 | unsigned long p; | |
906 | int r; | |
907 | ||
908 | assert(s); | |
909 | ||
910 | if (s->main_pid_known) | |
911 | return 0; | |
912 | ||
5e94833f LP |
913 | assert(s->main_pid <= 0); |
914 | ||
034c6ed7 LP |
915 | if (!s->pid_file) |
916 | return -ENOENT; | |
917 | ||
918 | if ((r = read_one_line_file(s->pid_file, &k)) < 0) | |
919 | return r; | |
920 | ||
921 | if ((r = safe_atolu(k, &p)) < 0) { | |
922 | free(k); | |
923 | return r; | |
924 | } | |
925 | ||
926 | if ((unsigned long) (pid_t) p != p) | |
927 | return -ERANGE; | |
928 | ||
b8c597d5 LP |
929 | if (kill((pid_t) p, 0) < 0 && errno != EPERM) { |
930 | log_warning("PID %llu read from file %s does not exist. Your service or init script might be broken.", | |
931 | (unsigned long long) p, s->pid_file); | |
932 | return -ESRCH; | |
933 | } | |
934 | ||
16f6025e LP |
935 | if ((r = unit_watch_pid(UNIT(s), (pid_t) p)) < 0) |
936 | /* FIXME: we need to do something here */ | |
937 | return r; | |
938 | ||
b8c597d5 | 939 | s->main_pid = (pid_t) p; |
034c6ed7 LP |
940 | s->main_pid_known = true; |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
3e33402a LP |
945 | static int service_get_sockets(Service *s, Set **_set) { |
946 | Set *set; | |
ceee3d82 LP |
947 | Iterator i; |
948 | char *t; | |
3e33402a | 949 | int r; |
ceee3d82 LP |
950 | |
951 | assert(s); | |
3e33402a LP |
952 | assert(_set); |
953 | ||
954 | /* Collects all Socket objects that belong to this | |
955 | * service. Note that a service might have multiple sockets | |
956 | * via multiple names. */ | |
957 | ||
958 | if (!(set = set_new(NULL, NULL))) | |
959 | return -ENOMEM; | |
ceee3d82 LP |
960 | |
961 | SET_FOREACH(t, UNIT(s)->meta.names, i) { | |
962 | char *k; | |
963 | Unit *p; | |
964 | ||
965 | /* Look for all socket objects that go by any of our | |
966 | * units and collect their fds */ | |
967 | ||
3e33402a LP |
968 | if (!(k = unit_name_change_suffix(t, ".socket"))) { |
969 | r = -ENOMEM; | |
970 | goto fail; | |
971 | } | |
ceee3d82 LP |
972 | |
973 | p = manager_get_unit(UNIT(s)->meta.manager, k); | |
974 | free(k); | |
975 | ||
8d567588 LP |
976 | if (!p) |
977 | continue; | |
ceee3d82 | 978 | |
3e33402a LP |
979 | if ((r = set_put(set, p)) < 0) |
980 | goto fail; | |
ceee3d82 LP |
981 | } |
982 | ||
3e33402a LP |
983 | *_set = set; |
984 | return 0; | |
985 | ||
986 | fail: | |
987 | set_free(set); | |
988 | return r; | |
989 | } | |
990 | ||
e537352b | 991 | static int service_notify_sockets_dead(Service *s) { |
3e33402a LP |
992 | Iterator i; |
993 | Set *set; | |
47be870b | 994 | Socket *sock; |
3e33402a LP |
995 | int r; |
996 | ||
997 | assert(s); | |
998 | ||
999 | /* Notifies all our sockets when we die */ | |
3e33402a LP |
1000 | if ((r = service_get_sockets(s, &set)) < 0) |
1001 | return r; | |
1002 | ||
47be870b LP |
1003 | SET_FOREACH(sock, set, i) |
1004 | socket_notify_service_dead(sock); | |
3e33402a LP |
1005 | |
1006 | set_free(set); | |
1007 | ||
ceee3d82 LP |
1008 | return 0; |
1009 | } | |
1010 | ||
034c6ed7 LP |
1011 | static void service_set_state(Service *s, ServiceState state) { |
1012 | ServiceState old_state; | |
5cb5a6ff LP |
1013 | assert(s); |
1014 | ||
034c6ed7 | 1015 | old_state = s->state; |
5cb5a6ff | 1016 | s->state = state; |
034c6ed7 LP |
1017 | |
1018 | if (state != SERVICE_START_PRE && | |
1019 | state != SERVICE_START && | |
1020 | state != SERVICE_START_POST && | |
1021 | state != SERVICE_RELOAD && | |
1022 | state != SERVICE_STOP && | |
1023 | state != SERVICE_STOP_SIGTERM && | |
1024 | state != SERVICE_STOP_SIGKILL && | |
1025 | state != SERVICE_STOP_POST && | |
1026 | state != SERVICE_FINAL_SIGTERM && | |
1027 | state != SERVICE_FINAL_SIGKILL && | |
1028 | state != SERVICE_AUTO_RESTART) | |
acbb0225 | 1029 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1030 | |
7d55e835 LP |
1031 | if (state != SERVICE_START && |
1032 | state != SERVICE_START_POST && | |
034c6ed7 LP |
1033 | state != SERVICE_RUNNING && |
1034 | state != SERVICE_RELOAD && | |
1035 | state != SERVICE_STOP && | |
1036 | state != SERVICE_STOP_SIGTERM && | |
1037 | state != SERVICE_STOP_SIGKILL) | |
5e94833f | 1038 | service_unwatch_main_pid(s); |
034c6ed7 LP |
1039 | |
1040 | if (state != SERVICE_START_PRE && | |
1041 | state != SERVICE_START && | |
1042 | state != SERVICE_START_POST && | |
1043 | state != SERVICE_RELOAD && | |
1044 | state != SERVICE_STOP && | |
1045 | state != SERVICE_STOP_SIGTERM && | |
1046 | state != SERVICE_STOP_SIGKILL && | |
1047 | state != SERVICE_STOP_POST && | |
1048 | state != SERVICE_FINAL_SIGTERM && | |
e537352b | 1049 | state != SERVICE_FINAL_SIGKILL) { |
5e94833f | 1050 | service_unwatch_control_pid(s); |
034c6ed7 | 1051 | s->control_command = NULL; |
a16e1123 | 1052 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1053 | } |
034c6ed7 | 1054 | |
ceee3d82 LP |
1055 | if (state == SERVICE_DEAD || |
1056 | state == SERVICE_STOP || | |
1057 | state == SERVICE_STOP_SIGTERM || | |
1058 | state == SERVICE_STOP_SIGKILL || | |
1059 | state == SERVICE_STOP_POST || | |
1060 | state == SERVICE_FINAL_SIGTERM || | |
1061 | state == SERVICE_FINAL_SIGKILL || | |
1062 | state == SERVICE_MAINTAINANCE || | |
1063 | state == SERVICE_AUTO_RESTART) | |
e537352b | 1064 | service_notify_sockets_dead(s); |
ceee3d82 | 1065 | |
4f2d528d LP |
1066 | if (state != SERVICE_START_PRE && |
1067 | state != SERVICE_START && | |
1068 | !(state == SERVICE_DEAD && UNIT(s)->meta.job)) | |
1069 | service_close_socket_fd(s); | |
1070 | ||
e537352b | 1071 | if (old_state != state) |
9e2f7c11 | 1072 | log_debug("%s changed %s → %s", UNIT(s)->meta.id, service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 LP |
1073 | |
1074 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]); | |
034c6ed7 LP |
1075 | } |
1076 | ||
a16e1123 LP |
1077 | static int service_coldplug(Unit *u) { |
1078 | Service *s = SERVICE(u); | |
1079 | int r; | |
1080 | ||
1081 | assert(s); | |
1082 | assert(s->state == SERVICE_DEAD); | |
1083 | ||
1084 | if (s->deserialized_state != s->state) { | |
1085 | ||
1086 | if (s->deserialized_state == SERVICE_START_PRE || | |
1087 | s->deserialized_state == SERVICE_START || | |
1088 | s->deserialized_state == SERVICE_START_POST || | |
1089 | s->deserialized_state == SERVICE_RELOAD || | |
1090 | s->deserialized_state == SERVICE_STOP || | |
1091 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1092 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1093 | s->deserialized_state == SERVICE_STOP_POST || | |
1094 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1095 | s->deserialized_state == SERVICE_FINAL_SIGKILL || | |
1096 | s->deserialized_state == SERVICE_AUTO_RESTART) | |
1097 | if ((r = unit_watch_timer(UNIT(s), | |
1098 | s->deserialized_state == SERVICE_AUTO_RESTART ? | |
1099 | s->restart_usec : | |
1100 | s->timeout_usec, | |
1101 | &s->timer_watch)) < 0) | |
1102 | return r; | |
1103 | ||
1104 | if ((s->deserialized_state == SERVICE_START && | |
1105 | (s->type == SERVICE_FORKING || | |
1106 | s->type == SERVICE_DBUS)) || | |
1107 | s->deserialized_state == SERVICE_START_POST || | |
1108 | s->deserialized_state == SERVICE_RUNNING || | |
1109 | s->deserialized_state == SERVICE_RELOAD || | |
1110 | s->deserialized_state == SERVICE_STOP || | |
1111 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1112 | s->deserialized_state == SERVICE_STOP_SIGKILL) | |
1113 | if (s->main_pid > 0) | |
1114 | if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0) | |
1115 | return r; | |
1116 | ||
1117 | if (s->deserialized_state == SERVICE_START_PRE || | |
1118 | s->deserialized_state == SERVICE_START || | |
1119 | s->deserialized_state == SERVICE_START_POST || | |
1120 | s->deserialized_state == SERVICE_RELOAD || | |
1121 | s->deserialized_state == SERVICE_STOP || | |
1122 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1123 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1124 | s->deserialized_state == SERVICE_STOP_POST || | |
1125 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1126 | s->deserialized_state == SERVICE_FINAL_SIGKILL) | |
1127 | if (s->control_pid > 0) | |
1128 | if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0) | |
1129 | return r; | |
1130 | ||
1131 | service_set_state(s, s->deserialized_state); | |
1132 | } | |
1133 | ||
1134 | return 0; | |
1135 | } | |
1136 | ||
44d8db9e LP |
1137 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
1138 | Iterator i; | |
1139 | int r; | |
1140 | int *rfds = NULL; | |
1141 | unsigned rn_fds = 0; | |
3e33402a | 1142 | Set *set; |
47be870b | 1143 | Socket *sock; |
44d8db9e LP |
1144 | |
1145 | assert(s); | |
1146 | assert(fds); | |
1147 | assert(n_fds); | |
1148 | ||
3e33402a LP |
1149 | if ((r = service_get_sockets(s, &set)) < 0) |
1150 | return r; | |
1151 | ||
47be870b | 1152 | SET_FOREACH(sock, set, i) { |
44d8db9e LP |
1153 | int *cfds; |
1154 | unsigned cn_fds; | |
1155 | ||
47be870b | 1156 | if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0) |
44d8db9e LP |
1157 | goto fail; |
1158 | ||
1159 | if (!cfds) | |
1160 | continue; | |
1161 | ||
1162 | if (!rfds) { | |
1163 | rfds = cfds; | |
1164 | rn_fds = cn_fds; | |
1165 | } else { | |
1166 | int *t; | |
1167 | ||
1168 | if (!(t = new(int, rn_fds+cn_fds))) { | |
1169 | free(cfds); | |
1170 | r = -ENOMEM; | |
1171 | goto fail; | |
1172 | } | |
1173 | ||
1174 | memcpy(t, rfds, rn_fds); | |
1175 | memcpy(t+rn_fds, cfds, cn_fds); | |
1176 | free(rfds); | |
1177 | free(cfds); | |
1178 | ||
1179 | rfds = t; | |
1180 | rn_fds = rn_fds+cn_fds; | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | *fds = rfds; | |
1185 | *n_fds = rn_fds; | |
3e33402a LP |
1186 | |
1187 | set_free(set); | |
1188 | ||
44d8db9e LP |
1189 | return 0; |
1190 | ||
1191 | fail: | |
3e33402a | 1192 | set_free(set); |
44d8db9e | 1193 | free(rfds); |
3e33402a | 1194 | |
44d8db9e LP |
1195 | return r; |
1196 | } | |
1197 | ||
81a2b7ce LP |
1198 | static int service_spawn( |
1199 | Service *s, | |
1200 | ExecCommand *c, | |
1201 | bool timeout, | |
1202 | bool pass_fds, | |
1203 | bool apply_permissions, | |
1204 | bool apply_chroot, | |
1205 | pid_t *_pid) { | |
1206 | ||
034c6ed7 LP |
1207 | pid_t pid; |
1208 | int r; | |
44d8db9e LP |
1209 | int *fds = NULL; |
1210 | unsigned n_fds = 0; | |
9e2f7c11 | 1211 | char **argv; |
034c6ed7 LP |
1212 | |
1213 | assert(s); | |
1214 | assert(c); | |
1215 | assert(_pid); | |
1216 | ||
4f2d528d LP |
1217 | if (pass_fds) { |
1218 | if (s->socket_fd >= 0) { | |
1219 | fds = &s->socket_fd; | |
1220 | n_fds = 1; | |
1221 | } else if ((r = service_collect_fds(s, &fds, &n_fds)) < 0) | |
44d8db9e | 1222 | goto fail; |
4f2d528d | 1223 | } |
44d8db9e | 1224 | |
034c6ed7 | 1225 | if (timeout) { |
acbb0225 | 1226 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) |
034c6ed7 LP |
1227 | goto fail; |
1228 | } else | |
acbb0225 | 1229 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1230 | |
9e2f7c11 LP |
1231 | if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) { |
1232 | r = -ENOMEM; | |
1233 | goto fail; | |
1234 | } | |
1235 | ||
1236 | r = exec_spawn(c, | |
1237 | argv, | |
1238 | &s->exec_context, | |
1239 | fds, n_fds, | |
1240 | apply_permissions, | |
1241 | apply_chroot, | |
1242 | UNIT(s)->meta.manager->confirm_spawn, | |
1243 | UNIT(s)->meta.cgroup_bondings, | |
1244 | &pid); | |
1245 | ||
1246 | strv_free(argv); | |
1247 | if (r < 0) | |
034c6ed7 LP |
1248 | goto fail; |
1249 | ||
4f2d528d LP |
1250 | if (fds) { |
1251 | if (s->socket_fd >= 0) | |
1252 | service_close_socket_fd(s); | |
1253 | else | |
1254 | free(fds); | |
1255 | } | |
1256 | ||
87f0e418 | 1257 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) |
034c6ed7 LP |
1258 | /* FIXME: we need to do something here */ |
1259 | goto fail; | |
1260 | ||
1261 | *_pid = pid; | |
1262 | ||
5cb5a6ff | 1263 | return 0; |
034c6ed7 LP |
1264 | |
1265 | fail: | |
44d8db9e LP |
1266 | free(fds); |
1267 | ||
034c6ed7 | 1268 | if (timeout) |
acbb0225 | 1269 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 LP |
1270 | |
1271 | return r; | |
1272 | } | |
1273 | ||
80876c20 LP |
1274 | static int main_pid_good(Service *s) { |
1275 | assert(s); | |
1276 | ||
1277 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1278 | * don't know */ | |
1279 | ||
1280 | /* If we know the pid file, then lets just check if it is | |
1281 | * still valid */ | |
1282 | if (s->main_pid_known) | |
1283 | return s->main_pid > 0; | |
1284 | ||
1285 | /* We don't know the pid */ | |
1286 | return -EAGAIN; | |
1287 | } | |
1288 | ||
1289 | static int control_pid_good(Service *s) { | |
1290 | assert(s); | |
1291 | ||
1292 | return s->control_pid > 0; | |
1293 | } | |
1294 | ||
1295 | static int cgroup_good(Service *s) { | |
1296 | int r; | |
1297 | ||
1298 | assert(s); | |
1299 | ||
1300 | if (s->valid_no_process) | |
1301 | return -EAGAIN; | |
1302 | ||
1303 | if ((r = cgroup_bonding_is_empty_list(UNIT(s)->meta.cgroup_bondings)) < 0) | |
1304 | return r; | |
1305 | ||
1306 | return !r; | |
1307 | } | |
1308 | ||
034c6ed7 LP |
1309 | static void service_enter_dead(Service *s, bool success, bool allow_restart) { |
1310 | int r; | |
1311 | assert(s); | |
1312 | ||
1313 | if (!success) | |
1314 | s->failure = true; | |
1315 | ||
1316 | if (allow_restart && | |
1317 | (s->restart == SERVICE_RESTART_ALWAYS || | |
1318 | (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) { | |
1319 | ||
acbb0225 | 1320 | if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0) |
034c6ed7 LP |
1321 | goto fail; |
1322 | ||
1323 | service_set_state(s, SERVICE_AUTO_RESTART); | |
1324 | } else | |
1325 | service_set_state(s, s->failure ? SERVICE_MAINTAINANCE : SERVICE_DEAD); | |
1326 | ||
1327 | return; | |
1328 | ||
1329 | fail: | |
9e2f7c11 | 1330 | log_warning("%s failed to run install restart timer: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1331 | service_enter_dead(s, false, false); |
1332 | } | |
1333 | ||
1334 | static void service_enter_signal(Service *s, ServiceState state, bool success); | |
1335 | ||
1336 | static void service_enter_stop_post(Service *s, bool success) { | |
1337 | int r; | |
1338 | assert(s); | |
1339 | ||
1340 | if (!success) | |
1341 | s->failure = true; | |
1342 | ||
5e94833f LP |
1343 | service_unwatch_control_pid(s); |
1344 | ||
a16e1123 | 1345 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
80876c20 | 1346 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) { |
81a2b7ce LP |
1347 | if ((r = service_spawn(s, |
1348 | s->control_command, | |
1349 | true, | |
1350 | false, | |
1351 | !s->permissions_start_only, | |
1352 | !s->root_directory_start_only, | |
1353 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1354 | goto fail; |
1355 | ||
d6ea93e3 | 1356 | |
80876c20 LP |
1357 | service_set_state(s, SERVICE_STOP_POST); |
1358 | } else | |
1359 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, true); | |
034c6ed7 LP |
1360 | |
1361 | return; | |
1362 | ||
1363 | fail: | |
9e2f7c11 | 1364 | log_warning("%s failed to run stop-post executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1365 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
1366 | } | |
1367 | ||
1368 | static void service_enter_signal(Service *s, ServiceState state, bool success) { | |
1369 | int r; | |
1370 | bool sent = false; | |
1371 | ||
1372 | assert(s); | |
1373 | ||
1374 | if (!success) | |
1375 | s->failure = true; | |
1376 | ||
80876c20 LP |
1377 | if (s->kill_mode != KILL_NONE) { |
1378 | int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL; | |
034c6ed7 | 1379 | |
50159e6a | 1380 | if (s->kill_mode == KILL_CONTROL_GROUP) { |
034c6ed7 | 1381 | |
50159e6a LP |
1382 | if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) { |
1383 | if (r != -EAGAIN && r != -ESRCH) | |
1384 | goto fail; | |
1385 | } else | |
034c6ed7 LP |
1386 | sent = true; |
1387 | } | |
1388 | ||
50159e6a LP |
1389 | if (!sent) { |
1390 | r = 0; | |
80876c20 | 1391 | |
50159e6a LP |
1392 | if (s->main_pid > 0) { |
1393 | if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH) | |
1394 | r = -errno; | |
1395 | else | |
1396 | sent = true; | |
1397 | } | |
1398 | ||
1399 | if (s->control_pid > 0) { | |
1400 | if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) | |
1401 | r = -errno; | |
1402 | else | |
1403 | sent = true; | |
1404 | } | |
1405 | ||
1406 | if (r < 0) | |
1407 | goto fail; | |
1408 | } | |
d6ea93e3 | 1409 | } |
034c6ed7 | 1410 | |
80876c20 LP |
1411 | if (sent) { |
1412 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) | |
1413 | goto fail; | |
d6ea93e3 | 1414 | |
80876c20 LP |
1415 | service_set_state(s, state); |
1416 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
1417 | service_enter_stop_post(s, true); | |
1418 | else | |
034c6ed7 LP |
1419 | service_enter_dead(s, true, true); |
1420 | ||
1421 | return; | |
1422 | ||
1423 | fail: | |
9e2f7c11 | 1424 | log_warning("%s failed to kill processes: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 | 1425 | |
80876c20 | 1426 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
034c6ed7 LP |
1427 | service_enter_stop_post(s, false); |
1428 | else | |
1429 | service_enter_dead(s, false, true); | |
1430 | } | |
1431 | ||
1432 | static void service_enter_stop(Service *s, bool success) { | |
1433 | int r; | |
1434 | assert(s); | |
1435 | ||
1436 | if (!success) | |
1437 | s->failure = true; | |
1438 | ||
5e94833f LP |
1439 | service_unwatch_control_pid(s); |
1440 | ||
a16e1123 | 1441 | s->control_command_id = SERVICE_EXEC_STOP; |
80876c20 | 1442 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) { |
81a2b7ce LP |
1443 | if ((r = service_spawn(s, |
1444 | s->control_command, | |
1445 | true, | |
1446 | false, | |
1447 | !s->permissions_start_only, | |
1448 | !s->root_directory_start_only, | |
1449 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1450 | goto fail; |
1451 | ||
80876c20 LP |
1452 | service_set_state(s, SERVICE_STOP); |
1453 | } else | |
034c6ed7 LP |
1454 | service_enter_signal(s, SERVICE_STOP_SIGTERM, true); |
1455 | ||
1456 | return; | |
1457 | ||
1458 | fail: | |
9e2f7c11 | 1459 | log_warning("%s failed to run stop executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1460 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); |
1461 | } | |
1462 | ||
80876c20 LP |
1463 | static void service_enter_running(Service *s, bool success) { |
1464 | assert(s); | |
1465 | ||
1466 | if (!success) | |
1467 | s->failure = true; | |
1468 | ||
05e343b7 LP |
1469 | if (main_pid_good(s) != 0 && |
1470 | cgroup_good(s) != 0 && | |
1471 | (s->bus_name_good || s->type != SERVICE_DBUS)) | |
80876c20 LP |
1472 | service_set_state(s, SERVICE_RUNNING); |
1473 | else if (s->valid_no_process) | |
1474 | service_set_state(s, SERVICE_EXITED); | |
1475 | else | |
1476 | service_enter_stop(s, true); | |
1477 | } | |
1478 | ||
034c6ed7 LP |
1479 | static void service_enter_start_post(Service *s) { |
1480 | int r; | |
1481 | assert(s); | |
1482 | ||
5e94833f LP |
1483 | service_unwatch_control_pid(s); |
1484 | ||
a16e1123 | 1485 | s->control_command_id = SERVICE_EXEC_START_POST; |
80876c20 | 1486 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) { |
81a2b7ce LP |
1487 | if ((r = service_spawn(s, |
1488 | s->control_command, | |
1489 | true, | |
1490 | false, | |
1491 | !s->permissions_start_only, | |
1492 | !s->root_directory_start_only, | |
1493 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1494 | goto fail; |
1495 | ||
d6ea93e3 | 1496 | |
80876c20 LP |
1497 | service_set_state(s, SERVICE_START_POST); |
1498 | } else | |
1499 | service_enter_running(s, true); | |
034c6ed7 LP |
1500 | |
1501 | return; | |
1502 | ||
1503 | fail: | |
9e2f7c11 | 1504 | log_warning("%s failed to run start-post executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1505 | service_enter_stop(s, false); |
1506 | } | |
1507 | ||
1508 | static void service_enter_start(Service *s) { | |
1509 | pid_t pid; | |
1510 | int r; | |
1511 | ||
1512 | assert(s); | |
1513 | ||
1514 | assert(s->exec_command[SERVICE_EXEC_START]); | |
1515 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next); | |
1516 | ||
80876c20 LP |
1517 | if (s->type == SERVICE_FORKING) |
1518 | service_unwatch_control_pid(s); | |
1519 | else | |
1520 | service_unwatch_main_pid(s); | |
1521 | ||
81a2b7ce LP |
1522 | if ((r = service_spawn(s, |
1523 | s->exec_command[SERVICE_EXEC_START], | |
05e343b7 | 1524 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS, |
81a2b7ce LP |
1525 | true, |
1526 | true, | |
1527 | true, | |
1528 | &pid)) < 0) | |
034c6ed7 LP |
1529 | goto fail; |
1530 | ||
1531 | if (s->type == SERVICE_SIMPLE) { | |
1532 | /* For simple services we immediately start | |
1533 | * the START_POST binaries. */ | |
1534 | ||
1535 | s->main_pid = pid; | |
1536 | s->main_pid_known = true; | |
80876c20 | 1537 | |
034c6ed7 LP |
1538 | service_enter_start_post(s); |
1539 | ||
1540 | } else if (s->type == SERVICE_FORKING) { | |
1541 | ||
1542 | /* For forking services we wait until the start | |
1543 | * process exited. */ | |
1544 | ||
1545 | s->control_pid = pid; | |
80876c20 | 1546 | |
a16e1123 | 1547 | s->control_command_id = SERVICE_EXEC_START; |
034c6ed7 | 1548 | s->control_command = s->exec_command[SERVICE_EXEC_START]; |
80876c20 LP |
1549 | service_set_state(s, SERVICE_START); |
1550 | ||
05e343b7 LP |
1551 | } else if (s->type == SERVICE_FINISH || |
1552 | s->type == SERVICE_DBUS) { | |
7d55e835 LP |
1553 | |
1554 | /* For finishing services we wait until the start | |
1555 | * process exited, too, but it is our main process. */ | |
1556 | ||
05e343b7 LP |
1557 | /* For D-Bus services we know the main pid right away, |
1558 | * but wait for the bus name to appear on the bus. */ | |
1559 | ||
7d55e835 | 1560 | s->main_pid = pid; |
5e94833f | 1561 | s->main_pid_known = true; |
80876c20 | 1562 | |
80876c20 | 1563 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1564 | } else |
1565 | assert_not_reached("Unknown service type"); | |
1566 | ||
1567 | return; | |
1568 | ||
1569 | fail: | |
9e2f7c11 | 1570 | log_warning("%s failed to run start exectuable: %s", UNIT(s)->meta.id, strerror(-r)); |
80876c20 | 1571 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
034c6ed7 LP |
1572 | } |
1573 | ||
1574 | static void service_enter_start_pre(Service *s) { | |
1575 | int r; | |
1576 | ||
1577 | assert(s); | |
1578 | ||
5e94833f LP |
1579 | service_unwatch_control_pid(s); |
1580 | ||
a16e1123 | 1581 | s->control_command_id = SERVICE_EXEC_START_PRE; |
80876c20 | 1582 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) { |
81a2b7ce LP |
1583 | if ((r = service_spawn(s, |
1584 | s->control_command, | |
1585 | true, | |
1586 | false, | |
1587 | !s->permissions_start_only, | |
1588 | !s->root_directory_start_only, | |
1589 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1590 | goto fail; |
1591 | ||
80876c20 LP |
1592 | service_set_state(s, SERVICE_START_PRE); |
1593 | } else | |
034c6ed7 LP |
1594 | service_enter_start(s); |
1595 | ||
1596 | return; | |
1597 | ||
1598 | fail: | |
9e2f7c11 | 1599 | log_warning("%s failed to run start-pre executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1600 | service_enter_dead(s, false, true); |
1601 | } | |
1602 | ||
1603 | static void service_enter_restart(Service *s) { | |
1604 | int r; | |
1605 | assert(s); | |
1606 | ||
9ea9a0c8 LP |
1607 | service_enter_dead(s, true, false); |
1608 | ||
87f0e418 | 1609 | if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0) |
034c6ed7 LP |
1610 | goto fail; |
1611 | ||
9e2f7c11 | 1612 | log_debug("%s scheduled restart job.", UNIT(s)->meta.id); |
034c6ed7 LP |
1613 | return; |
1614 | ||
1615 | fail: | |
1616 | ||
9e2f7c11 | 1617 | log_warning("%s failed to schedule restart job: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1618 | service_enter_dead(s, false, false); |
1619 | } | |
1620 | ||
1621 | static void service_enter_reload(Service *s) { | |
1622 | int r; | |
1623 | ||
1624 | assert(s); | |
1625 | ||
5e94833f LP |
1626 | service_unwatch_control_pid(s); |
1627 | ||
a16e1123 | 1628 | s->control_command_id = SERVICE_EXEC_RELOAD; |
80876c20 | 1629 | if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) { |
81a2b7ce LP |
1630 | if ((r = service_spawn(s, |
1631 | s->control_command, | |
1632 | true, | |
1633 | false, | |
1634 | !s->permissions_start_only, | |
1635 | !s->root_directory_start_only, | |
1636 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1637 | goto fail; |
1638 | ||
80876c20 LP |
1639 | service_set_state(s, SERVICE_RELOAD); |
1640 | } else | |
1641 | service_enter_running(s, true); | |
034c6ed7 LP |
1642 | |
1643 | return; | |
1644 | ||
1645 | fail: | |
9e2f7c11 | 1646 | log_warning("%s failed to run reload executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1647 | service_enter_stop(s, false); |
1648 | } | |
1649 | ||
1650 | static void service_run_next(Service *s, bool success) { | |
1651 | int r; | |
1652 | ||
1653 | assert(s); | |
1654 | assert(s->control_command); | |
1655 | assert(s->control_command->command_next); | |
1656 | ||
1657 | if (!success) | |
1658 | s->failure = true; | |
1659 | ||
1660 | s->control_command = s->control_command->command_next; | |
1661 | ||
5e94833f LP |
1662 | service_unwatch_control_pid(s); |
1663 | ||
81a2b7ce LP |
1664 | if ((r = service_spawn(s, |
1665 | s->control_command, | |
1666 | true, | |
1667 | false, | |
1668 | !s->permissions_start_only, | |
1669 | !s->root_directory_start_only, | |
1670 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1671 | goto fail; |
1672 | ||
1673 | return; | |
1674 | ||
1675 | fail: | |
9e2f7c11 | 1676 | log_warning("%s failed to run spawn next executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 | 1677 | |
80876c20 LP |
1678 | if (s->state == SERVICE_START_PRE) |
1679 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); | |
1680 | else if (s->state == SERVICE_STOP) | |
1681 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); | |
034c6ed7 LP |
1682 | else if (s->state == SERVICE_STOP_POST) |
1683 | service_enter_dead(s, false, true); | |
1684 | else | |
1685 | service_enter_stop(s, false); | |
5cb5a6ff LP |
1686 | } |
1687 | ||
87f0e418 LP |
1688 | static int service_start(Unit *u) { |
1689 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1690 | |
1691 | assert(s); | |
1692 | ||
034c6ed7 LP |
1693 | /* We cannot fulfill this request right now, try again later |
1694 | * please! */ | |
1695 | if (s->state == SERVICE_STOP || | |
1696 | s->state == SERVICE_STOP_SIGTERM || | |
1697 | s->state == SERVICE_STOP_SIGKILL || | |
1698 | s->state == SERVICE_STOP_POST || | |
1699 | s->state == SERVICE_FINAL_SIGTERM || | |
1700 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
1701 | return -EAGAIN; |
1702 | ||
034c6ed7 LP |
1703 | /* Already on it! */ |
1704 | if (s->state == SERVICE_START_PRE || | |
1705 | s->state == SERVICE_START || | |
1706 | s->state == SERVICE_START_POST) | |
1707 | return 0; | |
1708 | ||
1709 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTAINANCE || s->state == SERVICE_AUTO_RESTART); | |
5cb5a6ff | 1710 | |
1e2e8133 LP |
1711 | /* Make sure we don't enter a busy loop of some kind. */ |
1712 | if (!ratelimit_test(&s->ratelimit)) { | |
9e2f7c11 | 1713 | log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id); |
1e2e8133 LP |
1714 | return -EAGAIN; |
1715 | } | |
1716 | ||
034c6ed7 LP |
1717 | s->failure = false; |
1718 | s->main_pid_known = false; | |
1719 | ||
1720 | service_enter_start_pre(s); | |
1721 | return 0; | |
5cb5a6ff LP |
1722 | } |
1723 | ||
87f0e418 LP |
1724 | static int service_stop(Unit *u) { |
1725 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1726 | |
1727 | assert(s); | |
1728 | ||
e537352b | 1729 | /* Cannot do this now */ |
034c6ed7 LP |
1730 | if (s->state == SERVICE_START_PRE || |
1731 | s->state == SERVICE_START || | |
1732 | s->state == SERVICE_START_POST || | |
1733 | s->state == SERVICE_RELOAD) | |
1734 | return -EAGAIN; | |
1735 | ||
e537352b LP |
1736 | /* Already on it */ |
1737 | if (s->state == SERVICE_STOP || | |
1738 | s->state == SERVICE_STOP_SIGTERM || | |
1739 | s->state == SERVICE_STOP_SIGKILL || | |
1740 | s->state == SERVICE_STOP_POST || | |
1741 | s->state == SERVICE_FINAL_SIGTERM || | |
1742 | s->state == SERVICE_FINAL_SIGKILL) | |
1743 | return 0; | |
1744 | ||
034c6ed7 LP |
1745 | if (s->state == SERVICE_AUTO_RESTART) { |
1746 | service_set_state(s, SERVICE_DEAD); | |
1747 | return 0; | |
1748 | } | |
1749 | ||
80876c20 | 1750 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
5cb5a6ff | 1751 | |
034c6ed7 | 1752 | service_enter_stop(s, true); |
5cb5a6ff LP |
1753 | return 0; |
1754 | } | |
1755 | ||
87f0e418 LP |
1756 | static int service_reload(Unit *u) { |
1757 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1758 | |
1759 | assert(s); | |
1760 | ||
80876c20 | 1761 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
1762 | |
1763 | service_enter_reload(s); | |
5cb5a6ff LP |
1764 | return 0; |
1765 | } | |
1766 | ||
87f0e418 LP |
1767 | static bool service_can_reload(Unit *u) { |
1768 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1769 | |
1770 | assert(s); | |
1771 | ||
1772 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
1773 | } | |
1774 | ||
a16e1123 LP |
1775 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
1776 | Service *s = SERVICE(u); | |
1777 | ||
1778 | assert(u); | |
1779 | assert(f); | |
1780 | assert(fds); | |
1781 | ||
1782 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
1783 | unit_serialize_item(u, f, "failure", yes_no(s->failure)); | |
1784 | ||
1785 | if (s->control_pid > 0) | |
1786 | unit_serialize_item_format(u, f, "control-pid", "%u", (unsigned) (s->control_pid)); | |
1787 | ||
1788 | if (s->main_pid > 0) | |
1789 | unit_serialize_item_format(u, f, "main-pid", "%u", (unsigned) (s->main_pid)); | |
1790 | ||
1791 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
1792 | ||
1793 | /* There's a minor uncleanliness here: if there are multiple | |
1794 | * commands attached here, we will start from the first one | |
1795 | * again */ | |
1796 | if (s->control_command_id >= 0) | |
1797 | unit_serialize_item(u, f, "control-command", mount_exec_command_to_string(s->control_command_id)); | |
1798 | ||
1799 | if (s->socket_fd >= 0) { | |
1800 | int copy; | |
1801 | ||
1802 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
1803 | return copy; | |
1804 | ||
1805 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
1806 | } | |
1807 | ||
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
1812 | Service *s = SERVICE(u); | |
1813 | int r; | |
1814 | ||
1815 | assert(u); | |
1816 | assert(key); | |
1817 | assert(value); | |
1818 | assert(fds); | |
1819 | ||
1820 | if (streq(key, "state")) { | |
1821 | ServiceState state; | |
1822 | ||
1823 | if ((state = service_state_from_string(value)) < 0) | |
1824 | log_debug("Failed to parse state value %s", value); | |
1825 | else | |
1826 | s->deserialized_state = state; | |
1827 | } else if (streq(key, "failure")) { | |
1828 | int b; | |
1829 | ||
1830 | if ((b = parse_boolean(value)) < 0) | |
1831 | log_debug("Failed to parse failure value %s", value); | |
1832 | else | |
1833 | s->failure = b || s->failure; | |
1834 | } else if (streq(key, "control-pid")) { | |
1835 | unsigned pid; | |
1836 | ||
1837 | if ((r = safe_atou(value, &pid)) < 0 || pid <= 0) | |
1838 | log_debug("Failed to parse control-pid value %s", value); | |
1839 | else | |
1840 | s->control_pid = (pid_t) pid; | |
1841 | } else if (streq(key, "main-pid")) { | |
1842 | unsigned pid; | |
1843 | ||
1844 | if ((r = safe_atou(value, &pid)) < 0 || pid <= 0) | |
1845 | log_debug("Failed to parse main-pid value %s", value); | |
1846 | else | |
1847 | s->main_pid = (pid_t) pid; | |
1848 | } else if (streq(key, "main-pid-known")) { | |
1849 | int b; | |
1850 | ||
1851 | if ((b = parse_boolean(value)) < 0) | |
1852 | log_debug("Failed to parse main-pid-known value %s", value); | |
1853 | else | |
1854 | s->main_pid_known = b; | |
1855 | } else if (streq(key, "control-command")) { | |
1856 | ServiceExecCommand id; | |
1857 | ||
1858 | if ((id = service_exec_command_from_string(value)) < 0) | |
1859 | log_debug("Failed to parse exec-command value %s", value); | |
1860 | else { | |
1861 | s->control_command_id = id; | |
1862 | s->control_command = s->exec_command[id]; | |
1863 | } | |
1864 | } else if (streq(key, "socket-fd")) { | |
1865 | int fd; | |
1866 | ||
1867 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
1868 | log_debug("Failed to parse socket-fd value %s", value); | |
1869 | else { | |
1870 | ||
1871 | if (s->socket_fd >= 0) | |
1872 | close_nointr_nofail(s->socket_fd); | |
1873 | s->socket_fd = fdset_remove(fds, fd); | |
1874 | } | |
1875 | } else | |
1876 | log_debug("Unknown serialization key '%s'", key); | |
1877 | ||
1878 | return 0; | |
1879 | } | |
1880 | ||
87f0e418 LP |
1881 | static UnitActiveState service_active_state(Unit *u) { |
1882 | assert(u); | |
5cb5a6ff | 1883 | |
acbb0225 | 1884 | return state_translation_table[SERVICE(u)->state]; |
034c6ed7 LP |
1885 | } |
1886 | ||
10a94420 LP |
1887 | static const char *service_sub_state_to_string(Unit *u) { |
1888 | assert(u); | |
1889 | ||
1890 | return service_state_to_string(SERVICE(u)->state); | |
1891 | } | |
1892 | ||
701cc384 LP |
1893 | static bool service_check_gc(Unit *u) { |
1894 | Service *s = SERVICE(u); | |
1895 | ||
1896 | assert(s); | |
1897 | ||
1898 | return !!s->sysv_path; | |
1899 | } | |
1900 | ||
1901 | static bool service_check_snapshot(Unit *u) { | |
1902 | Service *s = SERVICE(u); | |
1903 | ||
1904 | assert(s); | |
1905 | ||
1906 | return !s->got_socket_fd; | |
1907 | } | |
1908 | ||
87f0e418 LP |
1909 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
1910 | Service *s = SERVICE(u); | |
034c6ed7 | 1911 | bool success; |
5cb5a6ff LP |
1912 | |
1913 | assert(s); | |
034c6ed7 LP |
1914 | assert(pid >= 0); |
1915 | ||
bd982a8b | 1916 | success = code == CLD_EXITED && status == 0; |
034c6ed7 LP |
1917 | s->failure = s->failure || !success; |
1918 | ||
1919 | if (s->main_pid == pid) { | |
1920 | ||
1921 | exec_status_fill(&s->main_exec_status, pid, code, status); | |
1922 | s->main_pid = 0; | |
1923 | ||
7d55e835 | 1924 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_FINISH) { |
034c6ed7 LP |
1925 | assert(s->exec_command[SERVICE_EXEC_START]); |
1926 | s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status; | |
1927 | } | |
1928 | ||
9e2f7c11 | 1929 | log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status); |
034c6ed7 LP |
1930 | |
1931 | /* The service exited, so the service is officially | |
1932 | * gone. */ | |
1933 | ||
1934 | switch (s->state) { | |
1935 | ||
1936 | case SERVICE_START_POST: | |
1937 | case SERVICE_RELOAD: | |
1938 | case SERVICE_STOP: | |
1939 | /* Need to wait until the operation is | |
1940 | * done */ | |
1941 | break; | |
1942 | ||
7d55e835 LP |
1943 | case SERVICE_START: |
1944 | assert(s->type == SERVICE_FINISH); | |
1945 | ||
1946 | /* This was our main goal, so let's go on */ | |
1947 | if (success) | |
1948 | service_enter_start_post(s); | |
1949 | else | |
80876c20 | 1950 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
7d55e835 LP |
1951 | break; |
1952 | ||
034c6ed7 | 1953 | case SERVICE_RUNNING: |
80876c20 | 1954 | service_enter_running(s, success); |
034c6ed7 LP |
1955 | break; |
1956 | ||
1957 | case SERVICE_STOP_SIGTERM: | |
1958 | case SERVICE_STOP_SIGKILL: | |
1959 | ||
1960 | if (!control_pid_good(s)) | |
1961 | service_enter_stop_post(s, success); | |
5cb5a6ff | 1962 | |
034c6ed7 LP |
1963 | /* If there is still a control process, wait for that first */ |
1964 | break; | |
5cb5a6ff | 1965 | |
034c6ed7 LP |
1966 | default: |
1967 | assert_not_reached("Uh, main process died at wrong time."); | |
1968 | } | |
5cb5a6ff | 1969 | |
034c6ed7 | 1970 | } else if (s->control_pid == pid) { |
034c6ed7 | 1971 | |
a16e1123 LP |
1972 | if (s->control_command) |
1973 | exec_status_fill(&s->control_command->exec_status, pid, code, status); | |
1974 | ||
034c6ed7 LP |
1975 | s->control_pid = 0; |
1976 | ||
9e2f7c11 | 1977 | log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status); |
034c6ed7 LP |
1978 | |
1979 | /* If we are shutting things down anyway we | |
1980 | * don't care about failing commands. */ | |
1981 | ||
a16e1123 | 1982 | if (s->control_command && s->control_command->command_next && success) { |
034c6ed7 LP |
1983 | |
1984 | /* There is another command to * | |
1985 | * execute, so let's do that. */ | |
1986 | ||
9e2f7c11 | 1987 | log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state)); |
034c6ed7 LP |
1988 | service_run_next(s, success); |
1989 | ||
80876c20 | 1990 | } else { |
034c6ed7 LP |
1991 | /* No further commands for this step, so let's |
1992 | * figure out what to do next */ | |
1993 | ||
a16e1123 LP |
1994 | s->control_command = NULL; |
1995 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1996 | ||
9e2f7c11 | 1997 | log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state)); |
bd982a8b | 1998 | |
034c6ed7 LP |
1999 | switch (s->state) { |
2000 | ||
2001 | case SERVICE_START_PRE: | |
2002 | if (success) | |
2003 | service_enter_start(s); | |
2004 | else | |
80876c20 | 2005 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
034c6ed7 LP |
2006 | break; |
2007 | ||
2008 | case SERVICE_START: | |
2009 | assert(s->type == SERVICE_FORKING); | |
2010 | ||
2011 | /* Let's try to load the pid | |
2012 | * file here if we can. We | |
2013 | * ignore the return value, | |
2014 | * since the PID file might | |
2015 | * actually be created by a | |
2016 | * START_POST script */ | |
2017 | ||
2018 | if (success) { | |
2019 | if (s->pid_file) | |
2020 | service_load_pid_file(s); | |
2021 | ||
2022 | service_enter_start_post(s); | |
2023 | } else | |
80876c20 | 2024 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
034c6ed7 LP |
2025 | |
2026 | break; | |
2027 | ||
2028 | case SERVICE_START_POST: | |
2029 | if (success && s->pid_file && !s->main_pid_known) { | |
2030 | int r; | |
2031 | ||
2032 | /* Hmm, let's see if we can | |
2033 | * load the pid now after the | |
2034 | * start-post scripts got | |
2035 | * executed. */ | |
2036 | ||
2037 | if ((r = service_load_pid_file(s)) < 0) | |
9e2f7c11 | 2038 | log_warning("%s: failed to load PID file %s: %s", UNIT(s)->meta.id, s->pid_file, strerror(-r)); |
034c6ed7 LP |
2039 | } |
2040 | ||
2041 | /* Fall through */ | |
2042 | ||
2043 | case SERVICE_RELOAD: | |
80876c20 LP |
2044 | if (success) |
2045 | service_enter_running(s, true); | |
2046 | else | |
034c6ed7 LP |
2047 | service_enter_stop(s, false); |
2048 | ||
2049 | break; | |
2050 | ||
2051 | case SERVICE_STOP: | |
80876c20 | 2052 | service_enter_signal(s, SERVICE_STOP_SIGTERM, success); |
034c6ed7 LP |
2053 | break; |
2054 | ||
2055 | case SERVICE_STOP_SIGTERM: | |
2056 | case SERVICE_STOP_SIGKILL: | |
2057 | if (main_pid_good(s) <= 0) | |
2058 | service_enter_stop_post(s, success); | |
2059 | ||
2060 | /* If there is still a service | |
2061 | * process around, wait until | |
2062 | * that one quit, too */ | |
2063 | break; | |
2064 | ||
2065 | case SERVICE_STOP_POST: | |
2066 | case SERVICE_FINAL_SIGTERM: | |
2067 | case SERVICE_FINAL_SIGKILL: | |
2068 | service_enter_dead(s, success, true); | |
2069 | break; | |
2070 | ||
2071 | default: | |
2072 | assert_not_reached("Uh, control process died at wrong time."); | |
2073 | } | |
2074 | } | |
2075 | } else | |
2076 | assert_not_reached("Got SIGCHLD for unkown PID"); | |
2077 | } | |
2078 | ||
acbb0225 | 2079 | static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { |
87f0e418 | 2080 | Service *s = SERVICE(u); |
034c6ed7 LP |
2081 | |
2082 | assert(s); | |
2083 | assert(elapsed == 1); | |
2084 | ||
acbb0225 | 2085 | assert(w == &s->timer_watch); |
034c6ed7 LP |
2086 | |
2087 | switch (s->state) { | |
2088 | ||
2089 | case SERVICE_START_PRE: | |
2090 | case SERVICE_START: | |
9e2f7c11 | 2091 | log_warning("%s operation timed out. Terminating.", u->meta.id); |
80876c20 LP |
2092 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
2093 | break; | |
2094 | ||
034c6ed7 LP |
2095 | case SERVICE_START_POST: |
2096 | case SERVICE_RELOAD: | |
9e2f7c11 | 2097 | log_warning("%s operation timed out. Stopping.", u->meta.id); |
034c6ed7 LP |
2098 | service_enter_stop(s, false); |
2099 | break; | |
2100 | ||
2101 | case SERVICE_STOP: | |
9e2f7c11 | 2102 | log_warning("%s stopping timed out. Terminating.", u->meta.id); |
034c6ed7 LP |
2103 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); |
2104 | break; | |
2105 | ||
2106 | case SERVICE_STOP_SIGTERM: | |
9e2f7c11 | 2107 | log_warning("%s stopping timed out. Killing.", u->meta.id); |
034c6ed7 LP |
2108 | service_enter_signal(s, SERVICE_STOP_SIGKILL, false); |
2109 | break; | |
2110 | ||
2111 | case SERVICE_STOP_SIGKILL: | |
2112 | /* Uh, wie sent a SIGKILL and it is still not gone? | |
2113 | * Must be something we cannot kill, so let's just be | |
2114 | * weirded out and continue */ | |
2115 | ||
9e2f7c11 | 2116 | log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id); |
034c6ed7 LP |
2117 | service_enter_stop_post(s, false); |
2118 | break; | |
2119 | ||
2120 | case SERVICE_STOP_POST: | |
9e2f7c11 | 2121 | log_warning("%s stopping timed out (2). Terminating.", u->meta.id); |
034c6ed7 LP |
2122 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
2123 | break; | |
2124 | ||
2125 | case SERVICE_FINAL_SIGTERM: | |
9e2f7c11 | 2126 | log_warning("%s stopping timed out (2). Killing.", u->meta.id); |
034c6ed7 LP |
2127 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, false); |
2128 | break; | |
2129 | ||
2130 | case SERVICE_FINAL_SIGKILL: | |
9e2f7c11 | 2131 | log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", u->meta.id); |
034c6ed7 LP |
2132 | service_enter_dead(s, false, true); |
2133 | break; | |
2134 | ||
2135 | case SERVICE_AUTO_RESTART: | |
9e2f7c11 | 2136 | log_debug("%s holdoff time over, scheduling restart.", u->meta.id); |
034c6ed7 LP |
2137 | service_enter_restart(s); |
2138 | break; | |
2139 | ||
2140 | default: | |
2141 | assert_not_reached("Timeout at wrong time."); | |
2142 | } | |
5cb5a6ff LP |
2143 | } |
2144 | ||
8e274523 LP |
2145 | static void service_cgroup_notify_event(Unit *u) { |
2146 | Service *s = SERVICE(u); | |
2147 | ||
2148 | assert(u); | |
2149 | ||
9e2f7c11 | 2150 | log_debug("%s: cgroup is empty", u->meta.id); |
8e274523 LP |
2151 | |
2152 | switch (s->state) { | |
2153 | ||
2154 | /* Waiting for SIGCHLD is usually more interesting, | |
2155 | * because it includes return codes/signals. Which is | |
2156 | * why we ignore the cgroup events for most cases, | |
2157 | * except when we don't know pid which to expect the | |
2158 | * SIGCHLD for. */ | |
2159 | ||
2160 | case SERVICE_RUNNING: | |
80876c20 | 2161 | service_enter_running(s, true); |
8e274523 LP |
2162 | break; |
2163 | ||
2164 | default: | |
2165 | ; | |
2166 | } | |
2167 | } | |
2168 | ||
2c4104f0 | 2169 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
2170 | char **p; |
2171 | unsigned i; | |
2172 | DIR *d = NULL; | |
2173 | char *path = NULL, *fpath = NULL, *name = NULL; | |
2174 | int r; | |
2175 | ||
2176 | assert(m); | |
2177 | ||
5e177ece | 2178 | STRV_FOREACH(p, m->sysvrcnd_path) |
23a177ef | 2179 | for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { |
2c4104f0 LP |
2180 | struct dirent *de; |
2181 | ||
2182 | free(path); | |
2183 | path = NULL; | |
23a177ef | 2184 | if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) { |
2c4104f0 LP |
2185 | r = -ENOMEM; |
2186 | goto finish; | |
2187 | } | |
2188 | ||
2189 | if (d) | |
2190 | closedir(d); | |
2191 | ||
2192 | if (!(d = opendir(path))) { | |
2193 | if (errno != ENOENT) | |
2194 | log_warning("opendir() failed on %s: %s", path, strerror(errno)); | |
2195 | ||
2196 | continue; | |
2197 | } | |
2198 | ||
2199 | while ((de = readdir(d))) { | |
2200 | Unit *runlevel, *service; | |
2201 | ||
2202 | if (ignore_file(de->d_name)) | |
2203 | continue; | |
2204 | ||
2205 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
2206 | continue; | |
2207 | ||
2208 | if (strlen(de->d_name) < 4) | |
2209 | continue; | |
2210 | ||
2211 | free(fpath); | |
2212 | fpath = NULL; | |
23a177ef | 2213 | if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i], de->d_name) < 0) { |
2c4104f0 LP |
2214 | r = -ENOMEM; |
2215 | goto finish; | |
2216 | } | |
2217 | ||
2218 | if (access(fpath, X_OK) < 0) { | |
2219 | ||
2220 | if (errno != ENOENT) | |
2221 | log_warning("access() failed on %s: %s", fpath, strerror(errno)); | |
2222 | ||
2223 | continue; | |
2224 | } | |
2225 | ||
2226 | free(name); | |
2227 | name = NULL; | |
2228 | if (asprintf(&name, "%s.service", de->d_name+3) < 0) { | |
2229 | r = -ENOMEM; | |
2230 | goto finish; | |
2231 | } | |
2232 | ||
9e2f7c11 | 2233 | if ((r = manager_load_unit(m, name, NULL, &service)) < 0) |
2c4104f0 LP |
2234 | goto finish; |
2235 | ||
9e2f7c11 | 2236 | if ((r = manager_load_unit(m, rcnd_table[i+1], NULL, &runlevel)) < 0) |
2c4104f0 LP |
2237 | goto finish; |
2238 | ||
2239 | if (de->d_name[0] == 'S') { | |
701cc384 | 2240 | if ((r = unit_add_dependency(runlevel, UNIT_WANTS, service, true)) < 0) |
2c4104f0 LP |
2241 | goto finish; |
2242 | ||
701cc384 | 2243 | if ((r = unit_add_dependency(runlevel, UNIT_AFTER, service, true)) < 0) |
2c4104f0 | 2244 | goto finish; |
23a177ef LP |
2245 | |
2246 | } else if (de->d_name[0] == 'K' && | |
2247 | (streq(rcnd_table[i+1], SPECIAL_RUNLEVEL0_TARGET) || | |
2248 | streq(rcnd_table[i+1], SPECIAL_RUNLEVEL6_TARGET))) { | |
2249 | ||
2250 | /* We honour K links only for | |
2251 | * halt/reboot. For the normal | |
2252 | * runlevels we assume the | |
2253 | * stop jobs will be | |
2254 | * implicitly added by the | |
2255 | * core logic. */ | |
2256 | ||
701cc384 | 2257 | if ((r = unit_add_dependency(runlevel, UNIT_CONFLICTS, service, true)) < 0) |
2c4104f0 LP |
2258 | goto finish; |
2259 | ||
701cc384 | 2260 | if ((r = unit_add_dependency(runlevel, UNIT_BEFORE, service, true)) < 0) |
2c4104f0 LP |
2261 | goto finish; |
2262 | } | |
2263 | } | |
2264 | } | |
2265 | ||
2266 | r = 0; | |
2267 | ||
2268 | finish: | |
2269 | free(path); | |
2270 | free(fpath); | |
2271 | free(name); | |
2272 | closedir(d); | |
2273 | ||
2274 | return r; | |
2275 | } | |
2276 | ||
05e343b7 LP |
2277 | static void service_bus_name_owner_change( |
2278 | Unit *u, | |
2279 | const char *name, | |
2280 | const char *old_owner, | |
2281 | const char *new_owner) { | |
2282 | ||
2283 | Service *s = SERVICE(u); | |
2284 | ||
2285 | assert(s); | |
2286 | assert(name); | |
2287 | ||
2288 | assert(streq(s->bus_name, name)); | |
2289 | assert(old_owner || new_owner); | |
2290 | ||
2291 | if (old_owner && new_owner) | |
2292 | log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner); | |
2293 | else if (old_owner) | |
2294 | log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner); | |
2295 | else | |
2296 | log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner); | |
2297 | ||
2298 | s->bus_name_good = !!new_owner; | |
2299 | ||
2300 | if (s->type == SERVICE_DBUS) { | |
2301 | ||
2302 | /* service_enter_running() will figure out what to | |
2303 | * do */ | |
2304 | if (s->state == SERVICE_RUNNING) | |
2305 | service_enter_running(s, true); | |
2306 | else if (s->state == SERVICE_START && new_owner) | |
2307 | service_enter_start_post(s); | |
2308 | ||
2309 | } else if (new_owner && | |
2310 | s->main_pid <= 0 && | |
2311 | (s->state == SERVICE_START || | |
2312 | s->state == SERVICE_START_POST || | |
2313 | s->state == SERVICE_RUNNING || | |
2314 | s->state == SERVICE_RELOAD)) { | |
2315 | ||
2316 | /* Try to acquire PID from bus service */ | |
2317 | log_debug("Trying to acquire PID from D-Bus name..."); | |
2318 | ||
2319 | bus_query_pid(u->meta.manager, name); | |
2320 | } | |
2321 | } | |
2322 | ||
2323 | static void service_bus_query_pid_done( | |
2324 | Unit *u, | |
2325 | const char *name, | |
2326 | pid_t pid) { | |
2327 | ||
2328 | Service *s = SERVICE(u); | |
2329 | ||
2330 | assert(s); | |
2331 | assert(name); | |
2332 | ||
2333 | log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid); | |
2334 | ||
2335 | if (s->main_pid <= 0 && | |
2336 | (s->state == SERVICE_START || | |
2337 | s->state == SERVICE_START_POST || | |
2338 | s->state == SERVICE_RUNNING || | |
2339 | s->state == SERVICE_RELOAD)) | |
2340 | s->main_pid = pid; | |
2341 | } | |
2342 | ||
4f2d528d LP |
2343 | int service_set_socket_fd(Service *s, int fd) { |
2344 | assert(s); | |
2345 | assert(fd >= 0); | |
2346 | ||
2347 | /* This is called by the socket code when instantiating a new | |
2348 | * service for a stream socket and the socket needs to be | |
2349 | * configured. */ | |
2350 | ||
2351 | if (UNIT(s)->meta.load_state != UNIT_LOADED) | |
2352 | return -EINVAL; | |
2353 | ||
2354 | if (s->socket_fd >= 0) | |
2355 | return -EBUSY; | |
2356 | ||
2357 | if (s->state != SERVICE_DEAD) | |
2358 | return -EAGAIN; | |
2359 | ||
2360 | s->socket_fd = fd; | |
701cc384 | 2361 | s->got_socket_fd = true; |
4f2d528d LP |
2362 | return 0; |
2363 | } | |
2364 | ||
94f04347 LP |
2365 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
2366 | [SERVICE_DEAD] = "dead", | |
2367 | [SERVICE_START_PRE] = "start-pre", | |
2368 | [SERVICE_START] = "start", | |
2369 | [SERVICE_START_POST] = "start-post", | |
2370 | [SERVICE_RUNNING] = "running", | |
80876c20 | 2371 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
2372 | [SERVICE_RELOAD] = "reload", |
2373 | [SERVICE_STOP] = "stop", | |
2374 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
2375 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
2376 | [SERVICE_STOP_POST] = "stop-post", | |
2377 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
2378 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
2379 | [SERVICE_MAINTAINANCE] = "maintainance", | |
2380 | [SERVICE_AUTO_RESTART] = "auto-restart", | |
2381 | }; | |
2382 | ||
2383 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
2384 | ||
2385 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
2386 | [SERVICE_ONCE] = "once", | |
2387 | [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success", | |
40531a55 | 2388 | [SERVICE_RESTART_ALWAYS] = "restart-always", |
94f04347 LP |
2389 | }; |
2390 | ||
2391 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
2392 | ||
2393 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
2394 | [SERVICE_FORKING] = "forking", | |
2395 | [SERVICE_SIMPLE] = "simple", | |
05e343b7 LP |
2396 | [SERVICE_FINISH] = "finish", |
2397 | [SERVICE_DBUS] = "dbus" | |
94f04347 LP |
2398 | }; |
2399 | ||
2400 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
2401 | ||
e537352b | 2402 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
2403 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
2404 | [SERVICE_EXEC_START] = "ExecStart", | |
2405 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
2406 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
2407 | [SERVICE_EXEC_STOP] = "ExecStop", | |
2408 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
2409 | }; | |
2410 | ||
2411 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
2412 | ||
87f0e418 | 2413 | const UnitVTable service_vtable = { |
5cb5a6ff LP |
2414 | .suffix = ".service", |
2415 | ||
034c6ed7 LP |
2416 | .init = service_init, |
2417 | .done = service_done, | |
a16e1123 LP |
2418 | .load = service_load, |
2419 | ||
2420 | .coldplug = service_coldplug, | |
034c6ed7 | 2421 | |
5cb5a6ff LP |
2422 | .dump = service_dump, |
2423 | ||
2424 | .start = service_start, | |
2425 | .stop = service_stop, | |
2426 | .reload = service_reload, | |
2427 | ||
034c6ed7 LP |
2428 | .can_reload = service_can_reload, |
2429 | ||
a16e1123 LP |
2430 | .serialize = service_serialize, |
2431 | .deserialize_item = service_deserialize_item, | |
2432 | ||
5cb5a6ff | 2433 | .active_state = service_active_state, |
10a94420 | 2434 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 2435 | |
701cc384 LP |
2436 | .check_gc = service_check_gc, |
2437 | .check_snapshot = service_check_snapshot, | |
2438 | ||
034c6ed7 LP |
2439 | .sigchld_event = service_sigchld_event, |
2440 | .timer_event = service_timer_event, | |
2c4104f0 | 2441 | |
8e274523 LP |
2442 | .cgroup_notify_empty = service_cgroup_notify_event, |
2443 | ||
05e343b7 LP |
2444 | .bus_name_owner_change = service_bus_name_owner_change, |
2445 | .bus_query_pid_done = service_bus_query_pid_done, | |
2446 | ||
4139c1b2 LP |
2447 | .bus_message_handler = bus_service_message_handler, |
2448 | ||
2c4104f0 | 2449 | .enumerate = service_enumerate |
5cb5a6ff | 2450 | }; |