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