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