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Commit | Line | Data |
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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 LP |
32 | #include "strv.h" |
33 | ||
34 | #define COMMENTS "#;\n" | |
35 | #define NEWLINES "\n\r" | |
36 | #define LINE_MAX 4096 | |
034c6ed7 | 37 | |
23a177ef | 38 | static const char * const rcnd_table[] = { |
0571e011 LP |
39 | "/rc0.d", SPECIAL_RUNLEVEL0_TARGET, |
40 | "/rc1.d", SPECIAL_RUNLEVEL1_TARGET, | |
41 | "/rc2.d", SPECIAL_RUNLEVEL2_TARGET, | |
42 | "/rc3.d", SPECIAL_RUNLEVEL3_TARGET, | |
43 | "/rc4.d", SPECIAL_RUNLEVEL4_TARGET, | |
44 | "/rc5.d", SPECIAL_RUNLEVEL5_TARGET, | |
45 | "/rc6.d", SPECIAL_RUNLEVEL6_TARGET | |
23a177ef LP |
46 | }; |
47 | ||
acbb0225 | 48 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
49 | [SERVICE_DEAD] = UNIT_INACTIVE, |
50 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
51 | [SERVICE_START] = UNIT_ACTIVATING, | |
52 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
53 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
54 | [SERVICE_RELOAD] = UNIT_ACTIVE_RELOADING, | |
55 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
56 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
57 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
58 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
59 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
60 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
61 | [SERVICE_MAINTAINANCE] = UNIT_INACTIVE, | |
62 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, | |
034c6ed7 | 63 | }; |
5cb5a6ff | 64 | |
87f0e418 LP |
65 | static void service_done(Unit *u) { |
66 | Service *s = SERVICE(u); | |
44d8db9e LP |
67 | |
68 | assert(s); | |
69 | ||
70 | free(s->pid_file); | |
71 | s->pid_file = NULL; | |
72 | ||
2c4104f0 LP |
73 | free(s->sysv_path); |
74 | s->sysv_path = NULL; | |
75 | ||
44d8db9e LP |
76 | exec_context_done(&s->exec_context); |
77 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_MAX); | |
78 | s->control_command = NULL; | |
79 | ||
80 | /* This will leak a process, but at least no memory or any of | |
81 | * our resources */ | |
82 | if (s->main_pid > 0) { | |
87f0e418 | 83 | unit_unwatch_pid(u, s->main_pid); |
44d8db9e LP |
84 | s->main_pid = 0; |
85 | } | |
86 | ||
87 | if (s->control_pid > 0) { | |
87f0e418 | 88 | unit_unwatch_pid(u, s->control_pid); |
44d8db9e LP |
89 | s->control_pid = 0; |
90 | } | |
91 | ||
acbb0225 | 92 | unit_unwatch_timer(u, &s->timer_watch); |
44d8db9e LP |
93 | } |
94 | ||
2c4104f0 LP |
95 | static int sysv_translate_name(const char *name, char **_r) { |
96 | ||
97 | static const char * const table[] = { | |
98 | "$local_fs", SPECIAL_LOCAL_FS_TARGET, | |
99 | "$network", SPECIAL_NETWORK_TARGET, | |
100 | "$named", SPECIAL_NSS_LOOKUP_TARGET, | |
101 | "$portmap", SPECIAL_RPCBIND_TARGET, | |
102 | "$remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
103 | "$syslog", SPECIAL_SYSLOG_TARGET, | |
104 | "$time", SPECIAL_RTC_SET_TARGET | |
105 | }; | |
106 | ||
107 | unsigned i; | |
108 | char *r; | |
109 | ||
110 | for (i = 0; i < ELEMENTSOF(table); i += 2) | |
111 | if (streq(table[i], name)) { | |
112 | if (!(r = strdup(table[i+1]))) | |
113 | return -ENOMEM; | |
114 | ||
115 | goto finish; | |
116 | } | |
117 | ||
118 | if (*name == '$') | |
119 | return 0; | |
120 | ||
121 | if (asprintf(&r, "%s.service", name) < 0) | |
122 | return -ENOMEM; | |
123 | ||
124 | finish: | |
125 | ||
126 | if (_r) | |
127 | *_r = r; | |
128 | ||
129 | return 1; | |
130 | } | |
131 | ||
132 | static int sysv_chkconfig_order(Service *s) { | |
133 | Meta *other; | |
134 | int r; | |
135 | ||
136 | assert(s); | |
137 | ||
138 | if (s->sysv_start_priority < 0) | |
139 | return 0; | |
140 | ||
23a177ef LP |
141 | /* For each pair of services where at least one lacks a LSB |
142 | * header, we use the start priority value to order things. */ | |
2c4104f0 LP |
143 | |
144 | LIST_FOREACH(units_per_type, other, UNIT(s)->meta.manager->units_per_type[UNIT_SERVICE]) { | |
145 | Service *t; | |
146 | UnitDependency d; | |
147 | ||
148 | t = (Service*) other; | |
149 | ||
150 | if (s == t) | |
151 | continue; | |
152 | ||
153 | if (t->sysv_start_priority < 0) | |
154 | continue; | |
155 | ||
23a177ef LP |
156 | if (s->sysv_has_lsb && t->sysv_has_lsb) |
157 | continue; | |
158 | ||
2c4104f0 LP |
159 | if (t->sysv_start_priority < s->sysv_start_priority) |
160 | d = UNIT_AFTER; | |
161 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
162 | d = UNIT_BEFORE; | |
163 | else | |
164 | continue; | |
165 | ||
166 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
167 | ||
168 | if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t))) < 0) | |
169 | return r; | |
170 | } | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
176 | ExecCommand *c; | |
177 | ||
178 | if (!(c = new0(ExecCommand, 1))) | |
179 | return NULL; | |
180 | ||
181 | if (!(c->path = strdup(path))) { | |
182 | free(c); | |
183 | return NULL; | |
184 | } | |
185 | ||
186 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
187 | free(c->path); | |
188 | free(c); | |
189 | return NULL; | |
190 | } | |
191 | ||
192 | return c; | |
193 | } | |
194 | ||
195 | static int sysv_exec_commands(Service *s) { | |
196 | ExecCommand *c; | |
197 | ||
198 | assert(s); | |
199 | assert(s->sysv_path); | |
200 | ||
201 | if (!(c = exec_command_new(s->sysv_path, "start"))) | |
202 | return -ENOMEM; | |
203 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
204 | ||
205 | if (!(c = exec_command_new(s->sysv_path, "stop"))) | |
206 | return -ENOMEM; | |
207 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
208 | ||
209 | if (!(c = exec_command_new(s->sysv_path, "reload"))) | |
210 | return -ENOMEM; | |
211 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
23a177ef LP |
216 | static int priority_from_rcd(Service *s, const char *init_script) { |
217 | char **p; | |
218 | unsigned i; | |
219 | ||
061978fa | 220 | STRV_FOREACH(p, UNIT(s)->meta.manager->sysvrcnd_path) |
23a177ef LP |
221 | for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { |
222 | char *path; | |
223 | DIR *d; | |
224 | struct dirent *de; | |
225 | ||
226 | if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) | |
227 | return -ENOMEM; | |
228 | ||
229 | d = opendir(path); | |
230 | free(path); | |
231 | ||
232 | if (!d) { | |
233 | if (errno != ENOENT) | |
234 | log_warning("opendir() failed on %s: %s", path, strerror(errno)); | |
235 | ||
236 | continue; | |
237 | } | |
238 | ||
239 | while ((de = readdir(d))) { | |
240 | int a, b; | |
241 | ||
242 | if (ignore_file(de->d_name)) | |
243 | continue; | |
244 | ||
245 | if (de->d_name[0] != 'S') | |
246 | continue; | |
247 | ||
248 | if (strlen(de->d_name) < 4) | |
249 | continue; | |
250 | ||
251 | if (!streq(de->d_name + 3, init_script)) | |
252 | continue; | |
253 | ||
254 | /* Yay, we found it! Now decode the priority */ | |
255 | ||
256 | a = undecchar(de->d_name[1]); | |
257 | b = undecchar(de->d_name[2]); | |
258 | ||
259 | if (a < 0 || b < 0) | |
260 | continue; | |
261 | ||
262 | s->sysv_start_priority = a*10 + b; | |
263 | ||
264 | log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, unit_id(UNIT(s))); | |
265 | ||
266 | closedir(d); | |
267 | return 0; | |
268 | } | |
269 | ||
270 | closedir(d); | |
271 | } | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
276 | static int service_load_sysv_path(Service *s, const char *path, UnitLoadState *new_state) { | |
2c4104f0 LP |
277 | FILE *f; |
278 | Unit *u; | |
279 | unsigned line = 0; | |
280 | int r; | |
281 | enum { | |
282 | NORMAL, | |
283 | DESCRIPTION, | |
284 | LSB, | |
285 | LSB_DESCRIPTION | |
286 | } state = NORMAL; | |
23a177ef LP |
287 | |
288 | assert(s); | |
289 | assert(path); | |
290 | assert(new_state); | |
2c4104f0 LP |
291 | |
292 | u = UNIT(s); | |
293 | ||
294 | if (!(f = fopen(path, "re"))) { | |
295 | r = errno == ENOENT ? 0 : -errno; | |
296 | goto finish; | |
297 | } | |
298 | ||
299 | s->type = SERVICE_FORKING; | |
300 | s->restart = SERVICE_ONCE; | |
301 | ||
302 | free(s->sysv_path); | |
303 | if (!(s->sysv_path = strdup(path))) { | |
304 | r = -ENOMEM; | |
305 | goto finish; | |
306 | } | |
307 | ||
308 | while (!feof(f)) { | |
309 | char l[LINE_MAX], *t; | |
310 | ||
311 | if (!fgets(l, sizeof(l), f)) { | |
312 | if (feof(f)) | |
313 | break; | |
314 | ||
315 | r = -errno; | |
316 | log_error("Failed to read configuration file '%s': %s", path, strerror(-r)); | |
317 | goto finish; | |
318 | } | |
319 | ||
320 | line++; | |
321 | ||
322 | t = strstrip(l); | |
323 | if (*t != '#') | |
324 | continue; | |
325 | ||
326 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
327 | state = LSB; | |
23a177ef | 328 | s->sysv_has_lsb = true; |
2c4104f0 LP |
329 | continue; |
330 | } | |
331 | ||
332 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
333 | state = NORMAL; | |
334 | continue; | |
335 | } | |
336 | ||
337 | t++; | |
338 | t += strspn(t, WHITESPACE); | |
339 | ||
340 | if (state == NORMAL) { | |
341 | ||
342 | /* Try to parse Red Hat style chkconfig headers */ | |
343 | ||
344 | if (startswith(t, "chkconfig:")) { | |
345 | int start_priority; | |
346 | ||
347 | state = NORMAL; | |
348 | ||
349 | if (sscanf(t+10, "%*15s %i %*i", | |
350 | &start_priority) != 1) { | |
351 | ||
352 | log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line); | |
353 | continue; | |
354 | } | |
355 | ||
356 | if (start_priority < 0 || start_priority > 99) { | |
357 | log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); | |
358 | continue; | |
359 | } | |
360 | ||
361 | s->sysv_start_priority = start_priority; | |
362 | ||
363 | } else if (startswith(t, "description:")) { | |
364 | ||
365 | size_t k = strlen(t); | |
366 | char *d; | |
367 | ||
368 | if (t[k-1] == '\\') { | |
369 | state = DESCRIPTION; | |
370 | t[k-1] = 0; | |
371 | } | |
372 | ||
373 | if (!(d = strdup(strstrip(t+12)))) { | |
374 | r = -ENOMEM; | |
375 | goto finish; | |
376 | } | |
377 | ||
378 | free(u->meta.description); | |
379 | u->meta.description = d; | |
380 | ||
381 | } else if (startswith(t, "pidfile:")) { | |
382 | ||
383 | char *fn; | |
384 | ||
385 | state = NORMAL; | |
386 | ||
387 | fn = strstrip(t+8); | |
388 | if (!path_is_absolute(fn)) { | |
389 | log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line); | |
390 | continue; | |
391 | } | |
392 | ||
393 | if (!(fn = strdup(fn))) { | |
394 | r = -ENOMEM; | |
395 | goto finish; | |
396 | } | |
397 | ||
398 | free(s->pid_file); | |
399 | s->pid_file = fn; | |
400 | } | |
401 | ||
402 | } else if (state == DESCRIPTION) { | |
403 | ||
404 | /* Try to parse Red Hat style description | |
405 | * continuation */ | |
406 | ||
407 | size_t k = strlen(t); | |
408 | char *d; | |
409 | ||
410 | if (t[k-1] == '\\') | |
411 | t[k-1] = 0; | |
412 | else | |
413 | state = NORMAL; | |
414 | ||
415 | assert(u->meta.description); | |
416 | if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) { | |
417 | r = -ENOMEM; | |
418 | goto finish; | |
419 | } | |
420 | ||
421 | free(u->meta.description); | |
422 | u->meta.description = d; | |
423 | ||
424 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
425 | ||
426 | if (startswith(t, "Provides:")) { | |
427 | char *i, *w; | |
428 | size_t z; | |
429 | ||
430 | state = LSB; | |
431 | ||
432 | FOREACH_WORD(w, z, t+9, i) { | |
433 | char *n, *m; | |
434 | ||
435 | if (!(n = strndup(w, z))) { | |
436 | r = -ENOMEM; | |
437 | goto finish; | |
438 | } | |
439 | ||
440 | r = sysv_translate_name(n, &m); | |
441 | free(n); | |
442 | ||
443 | if (r < 0) | |
444 | goto finish; | |
445 | ||
446 | if (r == 0) | |
447 | continue; | |
448 | ||
bd77d0fc LP |
449 | if (unit_name_to_type(m) == UNIT_SERVICE) |
450 | r = unit_add_name(u, m); | |
451 | else { | |
452 | if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m)) >= 0) | |
453 | r = unit_add_dependency_by_name(u, UNIT_BEFORE, m); | |
454 | } | |
455 | ||
2c4104f0 LP |
456 | free(m); |
457 | ||
458 | if (r < 0) | |
459 | goto finish; | |
460 | } | |
461 | ||
462 | } else if (startswith(t, "Required-Start:") || | |
463 | startswith(t, "Should-Start:")) { | |
464 | char *i, *w; | |
465 | size_t z; | |
466 | ||
467 | state = LSB; | |
468 | ||
469 | FOREACH_WORD(w, z, strchr(t, ':')+1, i) { | |
470 | char *n, *m; | |
471 | ||
472 | if (!(n = strndup(w, z))) { | |
473 | r = -ENOMEM; | |
474 | goto finish; | |
475 | } | |
476 | ||
477 | r = sysv_translate_name(n, &m); | |
478 | free(n); | |
479 | ||
480 | if (r < 0) | |
481 | goto finish; | |
482 | ||
483 | if (r == 0) | |
484 | continue; | |
485 | ||
486 | if (!(r = unit_add_dependency_by_name(u, UNIT_AFTER, m)) < 0) { | |
487 | free(m); | |
488 | goto finish; | |
489 | } | |
490 | ||
491 | r = unit_add_dependency_by_name( | |
492 | u, | |
493 | startswith(t, "Required-Start:") ? UNIT_REQUIRES : UNIT_WANTS, | |
494 | m); | |
495 | free(m); | |
496 | ||
497 | if (r < 0) | |
498 | goto finish; | |
499 | } | |
500 | ||
501 | } else if (startswith(t, "Description:")) { | |
502 | char *d; | |
503 | ||
504 | state = LSB_DESCRIPTION; | |
505 | ||
506 | if (!(d = strdup(strstrip(t+12)))) { | |
507 | r = -ENOMEM; | |
508 | goto finish; | |
509 | } | |
510 | ||
511 | free(u->meta.description); | |
512 | u->meta.description = d; | |
513 | ||
514 | } else if (startswith(t, "Short-Description:") && !u->meta.description) { | |
515 | char *d; | |
516 | ||
517 | /* We use the short description only | |
518 | * if no long description is set. */ | |
519 | ||
520 | state = LSB; | |
521 | ||
522 | if (!(d = strdup(strstrip(t+18)))) { | |
523 | r = -ENOMEM; | |
524 | goto finish; | |
525 | } | |
526 | ||
527 | free(u->meta.description); | |
528 | u->meta.description = d; | |
529 | ||
530 | } else if (state == LSB_DESCRIPTION) { | |
531 | ||
532 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
533 | char *d; | |
534 | ||
535 | assert(u->meta.description); | |
536 | if (asprintf(&d, "%s %s", u->meta.description, t) < 0) { | |
537 | r = -ENOMEM; | |
538 | goto finish; | |
539 | } | |
540 | ||
541 | free(u->meta.description); | |
542 | u->meta.description = d; | |
543 | } else | |
544 | state = LSB; | |
545 | } | |
546 | } | |
547 | } | |
548 | ||
23a177ef LP |
549 | /* If init scripts have no LSB header, then we enforce the |
550 | * ordering via the chkconfig priorities. We try to determine | |
551 | * a priority for *all* init scripts here, since they are | |
552 | * needed as soon as at least one non-LSB script is used. */ | |
2c4104f0 | 553 | |
23a177ef LP |
554 | if (s->sysv_start_priority < 0) { |
555 | log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", unit_id(u)); | |
556 | ||
557 | if ((r = priority_from_rcd(s, file_name_from_path(path))) < 0) | |
2c4104f0 LP |
558 | goto finish; |
559 | ||
23a177ef LP |
560 | if (s->sysv_start_priority < 0) |
561 | log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", unit_id(u)); | |
562 | } | |
563 | ||
2c4104f0 LP |
564 | if ((r = sysv_exec_commands(s)) < 0) |
565 | goto finish; | |
566 | ||
4a21885b LP |
567 | if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_SERVICE)) < 0 || |
568 | (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_SERVICE)) < 0) | |
0fd030be LP |
569 | goto finish; |
570 | ||
23a177ef LP |
571 | *new_state = UNIT_LOADED; |
572 | r = 0; | |
2c4104f0 LP |
573 | |
574 | finish: | |
575 | ||
576 | if (f) | |
577 | fclose(f); | |
578 | ||
579 | return r; | |
580 | } | |
581 | ||
23a177ef | 582 | static int service_load_sysv_name(Service *s, const char *name, UnitLoadState *new_state) { |
2c4104f0 LP |
583 | char **p; |
584 | ||
585 | assert(s); | |
586 | assert(name); | |
587 | ||
588 | STRV_FOREACH(p, UNIT(s)->meta.manager->sysvinit_path) { | |
589 | char *path; | |
590 | int r; | |
591 | ||
592 | if (asprintf(&path, "%s/%s", *p, name) < 0) | |
593 | return -ENOMEM; | |
594 | ||
595 | assert(endswith(path, ".service")); | |
596 | path[strlen(path)-8] = 0; | |
597 | ||
23a177ef | 598 | r = service_load_sysv_path(s, path, new_state); |
2c4104f0 LP |
599 | free(path); |
600 | ||
23a177ef | 601 | if (r < 0) |
2c4104f0 | 602 | return r; |
23a177ef LP |
603 | |
604 | if (*new_state != UNIT_STUB) | |
605 | break; | |
2c4104f0 LP |
606 | } |
607 | ||
608 | return 0; | |
609 | } | |
610 | ||
23a177ef | 611 | static int service_load_sysv(Service *s, UnitLoadState *new_state) { |
2c4104f0 LP |
612 | const char *t; |
613 | Iterator i; | |
614 | int r; | |
615 | ||
5cb5a6ff | 616 | assert(s); |
23a177ef | 617 | assert(new_state); |
5cb5a6ff LP |
618 | |
619 | /* Load service data from SysV init scripts, preferably with | |
620 | * LSB headers ... */ | |
621 | ||
2c4104f0 LP |
622 | if (strv_isempty(UNIT(s)->meta.manager->sysvinit_path)) |
623 | return 0; | |
624 | ||
625 | if ((t = unit_id(UNIT(s)))) | |
23a177ef | 626 | if ((r = service_load_sysv_name(s, t, new_state)) < 0) |
2c4104f0 LP |
627 | return r; |
628 | ||
23a177ef LP |
629 | if (*new_state == UNIT_STUB) |
630 | SET_FOREACH(t, UNIT(s)->meta.names, i) { | |
631 | if ((r == service_load_sysv_name(s, t, new_state)) < 0) | |
632 | return r; | |
633 | ||
634 | if (*new_state != UNIT_STUB) | |
635 | break; | |
636 | } | |
2c4104f0 LP |
637 | |
638 | return 0; | |
5cb5a6ff LP |
639 | } |
640 | ||
23a177ef | 641 | static int service_init(Unit *u, UnitLoadState *new_state) { |
5cb5a6ff | 642 | int r; |
87f0e418 | 643 | Service *s = SERVICE(u); |
5cb5a6ff LP |
644 | |
645 | assert(s); | |
23a177ef LP |
646 | assert(new_state); |
647 | assert(*new_state == UNIT_STUB); | |
5cb5a6ff | 648 | |
034c6ed7 LP |
649 | /* First, reset everything to the defaults, in case this is a |
650 | * reload */ | |
651 | ||
652 | s->type = 0; | |
653 | s->restart = 0; | |
654 | ||
655 | s->timeout_usec = DEFAULT_TIMEOUT_USEC; | |
656 | s->restart_usec = DEFAULT_RESTART_USEC; | |
657 | ||
658 | exec_context_init(&s->exec_context); | |
659 | ||
acbb0225 | 660 | s->timer_watch.type = WATCH_INVALID; |
034c6ed7 LP |
661 | |
662 | s->state = SERVICE_DEAD; | |
5cb5a6ff | 663 | |
2c4104f0 | 664 | s->sysv_start_priority = -1; |
81a2b7ce LP |
665 | s->permissions_start_only = false; |
666 | s->root_directory_start_only = false; | |
2c4104f0 | 667 | |
23a177ef LP |
668 | s->sysv_has_lsb = false; |
669 | ||
1e2e8133 LP |
670 | RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5); |
671 | ||
5cb5a6ff | 672 | /* Load a .service file */ |
23a177ef | 673 | if ((r = unit_load_fragment(u, new_state)) < 0) |
5cb5a6ff LP |
674 | return r; |
675 | ||
bd77d0fc | 676 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
23a177ef LP |
677 | if (*new_state == UNIT_STUB) |
678 | if ((r = service_load_sysv(s, new_state)) < 0) | |
679 | return r; | |
d46de8a1 | 680 | |
23a177ef LP |
681 | /* Still nothing found? Then let's give up */ |
682 | if (*new_state == UNIT_STUB) | |
683 | return -ENOENT; | |
034c6ed7 | 684 | |
23a177ef LP |
685 | /* We were able to load something, then let's add in the |
686 | * dropin directories. */ | |
687 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) | |
8e274523 | 688 | return r; |
23a177ef LP |
689 | |
690 | /* This is a new unit? Then let's add in some extras */ | |
691 | if (*new_state == UNIT_LOADED) { | |
692 | if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) | |
693 | return r; | |
694 | ||
695 | if ((r = unit_add_default_cgroup(u)) < 0) | |
696 | return r; | |
697 | ||
698 | if ((r = sysv_chkconfig_order(s)) < 0) | |
699 | return r; | |
8e274523 LP |
700 | } |
701 | ||
44d8db9e | 702 | return 0; |
034c6ed7 LP |
703 | } |
704 | ||
87f0e418 | 705 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 706 | |
5cb5a6ff | 707 | ServiceExecCommand c; |
87f0e418 | 708 | Service *s = SERVICE(u); |
47be870b LP |
709 | const char *prefix2; |
710 | char *p2; | |
5cb5a6ff LP |
711 | |
712 | assert(s); | |
713 | ||
47be870b LP |
714 | p2 = strappend(prefix, "\t"); |
715 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 716 | |
5cb5a6ff | 717 | fprintf(f, |
81a2b7ce LP |
718 | "%sService State: %s\n" |
719 | "%sPermissionsStartOnly: %s\n" | |
8e274523 | 720 | "%sRootDirectoryStartOnly: %s\n" |
03d6ab85 LP |
721 | "%sValidNoProcess: %s\n" |
722 | "%sType: %s\n", | |
81a2b7ce LP |
723 | prefix, service_state_to_string(s->state), |
724 | prefix, yes_no(s->permissions_start_only), | |
8e274523 | 725 | prefix, yes_no(s->root_directory_start_only), |
03d6ab85 LP |
726 | prefix, yes_no(s->valid_no_process), |
727 | prefix, service_type_to_string(s->type)); | |
5cb5a6ff | 728 | |
034c6ed7 LP |
729 | if (s->pid_file) |
730 | fprintf(f, | |
731 | "%sPIDFile: %s\n", | |
732 | prefix, s->pid_file); | |
733 | ||
5cb5a6ff LP |
734 | exec_context_dump(&s->exec_context, f, prefix); |
735 | ||
736 | for (c = 0; c < _SERVICE_EXEC_MAX; c++) { | |
5cb5a6ff | 737 | |
44d8db9e LP |
738 | if (!s->exec_command[c]) |
739 | continue; | |
740 | ||
741 | fprintf(f, "%s→ %s:\n", | |
94f04347 | 742 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
743 | |
744 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 745 | } |
44d8db9e | 746 | |
2c4104f0 LP |
747 | if (s->sysv_path) |
748 | fprintf(f, | |
23a177ef LP |
749 | "%sSysV Init Script Path: %s\n" |
750 | "%sSysV Init Script has LSB Header: %s\n", | |
751 | prefix, s->sysv_path, | |
752 | prefix, yes_no(s->sysv_has_lsb)); | |
2c4104f0 LP |
753 | |
754 | if (s->sysv_start_priority >= 0) | |
755 | fprintf(f, | |
23a177ef | 756 | "%sSysVStartPriority: %i\n", |
2c4104f0 LP |
757 | prefix, s->sysv_start_priority); |
758 | ||
23a177ef | 759 | |
47be870b | 760 | free(p2); |
5cb5a6ff LP |
761 | } |
762 | ||
034c6ed7 LP |
763 | static int service_load_pid_file(Service *s) { |
764 | char *k; | |
765 | unsigned long p; | |
766 | int r; | |
767 | ||
768 | assert(s); | |
769 | ||
770 | if (s->main_pid_known) | |
771 | return 0; | |
772 | ||
773 | if (!s->pid_file) | |
774 | return -ENOENT; | |
775 | ||
776 | if ((r = read_one_line_file(s->pid_file, &k)) < 0) | |
777 | return r; | |
778 | ||
779 | if ((r = safe_atolu(k, &p)) < 0) { | |
780 | free(k); | |
781 | return r; | |
782 | } | |
783 | ||
784 | if ((unsigned long) (pid_t) p != p) | |
785 | return -ERANGE; | |
786 | ||
787 | s->main_pid = p; | |
788 | s->main_pid_known = true; | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
3e33402a LP |
793 | static int service_get_sockets(Service *s, Set **_set) { |
794 | Set *set; | |
ceee3d82 LP |
795 | Iterator i; |
796 | char *t; | |
3e33402a | 797 | int r; |
ceee3d82 LP |
798 | |
799 | assert(s); | |
3e33402a LP |
800 | assert(_set); |
801 | ||
802 | /* Collects all Socket objects that belong to this | |
803 | * service. Note that a service might have multiple sockets | |
804 | * via multiple names. */ | |
805 | ||
806 | if (!(set = set_new(NULL, NULL))) | |
807 | return -ENOMEM; | |
ceee3d82 LP |
808 | |
809 | SET_FOREACH(t, UNIT(s)->meta.names, i) { | |
810 | char *k; | |
811 | Unit *p; | |
812 | ||
813 | /* Look for all socket objects that go by any of our | |
814 | * units and collect their fds */ | |
815 | ||
3e33402a LP |
816 | if (!(k = unit_name_change_suffix(t, ".socket"))) { |
817 | r = -ENOMEM; | |
818 | goto fail; | |
819 | } | |
ceee3d82 LP |
820 | |
821 | p = manager_get_unit(UNIT(s)->meta.manager, k); | |
822 | free(k); | |
823 | ||
3e33402a | 824 | if (!p) continue; |
ceee3d82 | 825 | |
3e33402a LP |
826 | if ((r = set_put(set, p)) < 0) |
827 | goto fail; | |
ceee3d82 LP |
828 | } |
829 | ||
3e33402a LP |
830 | *_set = set; |
831 | return 0; | |
832 | ||
833 | fail: | |
834 | set_free(set); | |
835 | return r; | |
836 | } | |
837 | ||
838 | ||
839 | static int service_notify_sockets(Service *s) { | |
840 | Iterator i; | |
841 | Set *set; | |
47be870b | 842 | Socket *sock; |
3e33402a LP |
843 | int r; |
844 | ||
845 | assert(s); | |
846 | ||
847 | /* Notifies all our sockets when we die */ | |
848 | ||
849 | if ((r = service_get_sockets(s, &set)) < 0) | |
850 | return r; | |
851 | ||
47be870b LP |
852 | SET_FOREACH(sock, set, i) |
853 | socket_notify_service_dead(sock); | |
3e33402a LP |
854 | |
855 | set_free(set); | |
856 | ||
ceee3d82 LP |
857 | return 0; |
858 | } | |
859 | ||
034c6ed7 LP |
860 | static void service_set_state(Service *s, ServiceState state) { |
861 | ServiceState old_state; | |
5cb5a6ff LP |
862 | assert(s); |
863 | ||
034c6ed7 | 864 | old_state = s->state; |
5cb5a6ff | 865 | s->state = state; |
034c6ed7 LP |
866 | |
867 | if (state != SERVICE_START_PRE && | |
868 | state != SERVICE_START && | |
869 | state != SERVICE_START_POST && | |
870 | state != SERVICE_RELOAD && | |
871 | state != SERVICE_STOP && | |
872 | state != SERVICE_STOP_SIGTERM && | |
873 | state != SERVICE_STOP_SIGKILL && | |
874 | state != SERVICE_STOP_POST && | |
875 | state != SERVICE_FINAL_SIGTERM && | |
876 | state != SERVICE_FINAL_SIGKILL && | |
877 | state != SERVICE_AUTO_RESTART) | |
acbb0225 | 878 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 879 | |
7d55e835 LP |
880 | if (state != SERVICE_START && |
881 | state != SERVICE_START_POST && | |
034c6ed7 LP |
882 | state != SERVICE_RUNNING && |
883 | state != SERVICE_RELOAD && | |
884 | state != SERVICE_STOP && | |
885 | state != SERVICE_STOP_SIGTERM && | |
886 | state != SERVICE_STOP_SIGKILL) | |
acbb0225 | 887 | if (s->main_pid > 0) { |
87f0e418 | 888 | unit_unwatch_pid(UNIT(s), s->main_pid); |
034c6ed7 LP |
889 | s->main_pid = 0; |
890 | } | |
891 | ||
892 | if (state != SERVICE_START_PRE && | |
893 | state != SERVICE_START && | |
894 | state != SERVICE_START_POST && | |
895 | state != SERVICE_RELOAD && | |
896 | state != SERVICE_STOP && | |
897 | state != SERVICE_STOP_SIGTERM && | |
898 | state != SERVICE_STOP_SIGKILL && | |
899 | state != SERVICE_STOP_POST && | |
900 | state != SERVICE_FINAL_SIGTERM && | |
901 | state != SERVICE_FINAL_SIGKILL) | |
acbb0225 | 902 | if (s->control_pid > 0) { |
87f0e418 | 903 | unit_unwatch_pid(UNIT(s), s->control_pid); |
034c6ed7 LP |
904 | s->control_pid = 0; |
905 | } | |
906 | ||
907 | if (state != SERVICE_START_PRE && | |
908 | state != SERVICE_START && | |
909 | state != SERVICE_START_POST && | |
910 | state != SERVICE_RELOAD && | |
911 | state != SERVICE_STOP && | |
912 | state != SERVICE_STOP_POST) | |
913 | s->control_command = NULL; | |
914 | ||
ceee3d82 LP |
915 | if (state == SERVICE_DEAD || |
916 | state == SERVICE_STOP || | |
917 | state == SERVICE_STOP_SIGTERM || | |
918 | state == SERVICE_STOP_SIGKILL || | |
919 | state == SERVICE_STOP_POST || | |
920 | state == SERVICE_FINAL_SIGTERM || | |
921 | state == SERVICE_FINAL_SIGKILL || | |
922 | state == SERVICE_MAINTAINANCE || | |
923 | state == SERVICE_AUTO_RESTART) | |
924 | service_notify_sockets(s); | |
925 | ||
94f04347 | 926 | log_debug("%s changed %s → %s", unit_id(UNIT(s)), service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 LP |
927 | |
928 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]); | |
034c6ed7 LP |
929 | } |
930 | ||
44d8db9e LP |
931 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
932 | Iterator i; | |
933 | int r; | |
934 | int *rfds = NULL; | |
935 | unsigned rn_fds = 0; | |
3e33402a | 936 | Set *set; |
47be870b | 937 | Socket *sock; |
44d8db9e LP |
938 | |
939 | assert(s); | |
940 | assert(fds); | |
941 | assert(n_fds); | |
942 | ||
3e33402a LP |
943 | if ((r = service_get_sockets(s, &set)) < 0) |
944 | return r; | |
945 | ||
47be870b | 946 | SET_FOREACH(sock, set, i) { |
44d8db9e LP |
947 | int *cfds; |
948 | unsigned cn_fds; | |
949 | ||
47be870b | 950 | if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0) |
44d8db9e LP |
951 | goto fail; |
952 | ||
953 | if (!cfds) | |
954 | continue; | |
955 | ||
956 | if (!rfds) { | |
957 | rfds = cfds; | |
958 | rn_fds = cn_fds; | |
959 | } else { | |
960 | int *t; | |
961 | ||
962 | if (!(t = new(int, rn_fds+cn_fds))) { | |
963 | free(cfds); | |
964 | r = -ENOMEM; | |
965 | goto fail; | |
966 | } | |
967 | ||
968 | memcpy(t, rfds, rn_fds); | |
969 | memcpy(t+rn_fds, cfds, cn_fds); | |
970 | free(rfds); | |
971 | free(cfds); | |
972 | ||
973 | rfds = t; | |
974 | rn_fds = rn_fds+cn_fds; | |
975 | } | |
976 | } | |
977 | ||
978 | *fds = rfds; | |
979 | *n_fds = rn_fds; | |
3e33402a LP |
980 | |
981 | set_free(set); | |
982 | ||
44d8db9e LP |
983 | return 0; |
984 | ||
985 | fail: | |
3e33402a | 986 | set_free(set); |
44d8db9e | 987 | free(rfds); |
3e33402a | 988 | |
44d8db9e LP |
989 | return r; |
990 | } | |
991 | ||
81a2b7ce LP |
992 | static int service_spawn( |
993 | Service *s, | |
994 | ExecCommand *c, | |
995 | bool timeout, | |
996 | bool pass_fds, | |
997 | bool apply_permissions, | |
998 | bool apply_chroot, | |
999 | pid_t *_pid) { | |
1000 | ||
034c6ed7 LP |
1001 | pid_t pid; |
1002 | int r; | |
44d8db9e LP |
1003 | int *fds = NULL; |
1004 | unsigned n_fds = 0; | |
034c6ed7 LP |
1005 | |
1006 | assert(s); | |
1007 | assert(c); | |
1008 | assert(_pid); | |
1009 | ||
44d8db9e LP |
1010 | if (pass_fds) |
1011 | if ((r = service_collect_fds(s, &fds, &n_fds)) < 0) | |
1012 | goto fail; | |
1013 | ||
034c6ed7 | 1014 | if (timeout) { |
acbb0225 | 1015 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) |
034c6ed7 LP |
1016 | goto fail; |
1017 | } else | |
acbb0225 | 1018 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1019 | |
81a2b7ce LP |
1020 | if ((r = exec_spawn(c, |
1021 | &s->exec_context, | |
1022 | fds, n_fds, | |
1023 | apply_permissions, | |
1024 | apply_chroot, | |
8e274523 | 1025 | UNIT(s)->meta.cgroup_bondings, |
81a2b7ce | 1026 | &pid)) < 0) |
034c6ed7 LP |
1027 | goto fail; |
1028 | ||
87f0e418 | 1029 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) |
034c6ed7 LP |
1030 | /* FIXME: we need to do something here */ |
1031 | goto fail; | |
1032 | ||
44d8db9e | 1033 | free(fds); |
034c6ed7 LP |
1034 | *_pid = pid; |
1035 | ||
5cb5a6ff | 1036 | return 0; |
034c6ed7 LP |
1037 | |
1038 | fail: | |
44d8db9e LP |
1039 | free(fds); |
1040 | ||
034c6ed7 | 1041 | if (timeout) |
acbb0225 | 1042 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 LP |
1043 | |
1044 | return r; | |
1045 | } | |
1046 | ||
1047 | static void service_enter_dead(Service *s, bool success, bool allow_restart) { | |
1048 | int r; | |
1049 | assert(s); | |
1050 | ||
1051 | if (!success) | |
1052 | s->failure = true; | |
1053 | ||
1054 | if (allow_restart && | |
1055 | (s->restart == SERVICE_RESTART_ALWAYS || | |
1056 | (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) { | |
1057 | ||
acbb0225 | 1058 | if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0) |
034c6ed7 LP |
1059 | goto fail; |
1060 | ||
1061 | service_set_state(s, SERVICE_AUTO_RESTART); | |
1062 | } else | |
1063 | service_set_state(s, s->failure ? SERVICE_MAINTAINANCE : SERVICE_DEAD); | |
1064 | ||
1065 | return; | |
1066 | ||
1067 | fail: | |
87f0e418 | 1068 | log_warning("%s failed to run install restart timer: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1069 | service_enter_dead(s, false, false); |
1070 | } | |
1071 | ||
1072 | static void service_enter_signal(Service *s, ServiceState state, bool success); | |
1073 | ||
1074 | static void service_enter_stop_post(Service *s, bool success) { | |
1075 | int r; | |
1076 | assert(s); | |
1077 | ||
1078 | if (!success) | |
1079 | s->failure = true; | |
1080 | ||
d6ea93e3 | 1081 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) |
81a2b7ce LP |
1082 | if ((r = service_spawn(s, |
1083 | s->control_command, | |
1084 | true, | |
1085 | false, | |
1086 | !s->permissions_start_only, | |
1087 | !s->root_directory_start_only, | |
1088 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1089 | goto fail; |
1090 | ||
d6ea93e3 LP |
1091 | |
1092 | service_set_state(s, SERVICE_STOP_POST); | |
1093 | ||
1094 | if (!s->control_command) | |
034c6ed7 LP |
1095 | service_enter_dead(s, true, true); |
1096 | ||
1097 | return; | |
1098 | ||
1099 | fail: | |
87f0e418 | 1100 | log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1101 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
1102 | } | |
1103 | ||
1104 | static void service_enter_signal(Service *s, ServiceState state, bool success) { | |
1105 | int r; | |
1106 | bool sent = false; | |
1107 | ||
1108 | assert(s); | |
1109 | ||
1110 | if (!success) | |
1111 | s->failure = true; | |
1112 | ||
1113 | if (s->main_pid > 0 || s->control_pid > 0) { | |
1114 | int sig; | |
1115 | ||
1116 | sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL; | |
1117 | ||
1118 | r = 0; | |
1119 | if (s->main_pid > 0) { | |
1120 | if (kill(s->main_pid, sig) < 0 && errno != ESRCH) | |
1121 | r = -errno; | |
1122 | else | |
1123 | sent = true; | |
1124 | } | |
1125 | ||
1126 | if (s->control_pid > 0) { | |
1127 | if (kill(s->control_pid, sig) < 0 && errno != ESRCH) | |
1128 | r = -errno; | |
1129 | else | |
1130 | sent = true; | |
1131 | } | |
1132 | ||
1133 | if (r < 0) | |
1134 | goto fail; | |
d6ea93e3 | 1135 | } |
034c6ed7 | 1136 | |
d6ea93e3 LP |
1137 | service_set_state(s, state); |
1138 | ||
1139 | if (s->main_pid <= 0 && s->control_pid <= 0) | |
034c6ed7 LP |
1140 | service_enter_dead(s, true, true); |
1141 | ||
1142 | return; | |
1143 | ||
1144 | fail: | |
87f0e418 | 1145 | log_warning("%s failed to kill processes: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1146 | |
1147 | if (sent) { | |
1148 | s->failure = true; | |
1149 | service_set_state(s, state); | |
1150 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
1151 | service_enter_stop_post(s, false); | |
1152 | else | |
1153 | service_enter_dead(s, false, true); | |
1154 | } | |
1155 | ||
1156 | static void service_enter_stop(Service *s, bool success) { | |
1157 | int r; | |
1158 | assert(s); | |
1159 | ||
1160 | if (!success) | |
1161 | s->failure = true; | |
1162 | ||
d6ea93e3 | 1163 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) |
81a2b7ce LP |
1164 | if ((r = service_spawn(s, |
1165 | s->control_command, | |
1166 | true, | |
1167 | false, | |
1168 | !s->permissions_start_only, | |
1169 | !s->root_directory_start_only, | |
1170 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1171 | goto fail; |
1172 | ||
d6ea93e3 LP |
1173 | service_set_state(s, SERVICE_STOP); |
1174 | ||
1175 | if (!s->control_command) | |
034c6ed7 LP |
1176 | service_enter_signal(s, SERVICE_STOP_SIGTERM, true); |
1177 | ||
1178 | return; | |
1179 | ||
1180 | fail: | |
87f0e418 | 1181 | log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1182 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); |
1183 | } | |
1184 | ||
1185 | static void service_enter_start_post(Service *s) { | |
1186 | int r; | |
1187 | assert(s); | |
1188 | ||
d6ea93e3 | 1189 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) |
81a2b7ce LP |
1190 | if ((r = service_spawn(s, |
1191 | s->control_command, | |
1192 | true, | |
1193 | false, | |
1194 | !s->permissions_start_only, | |
1195 | !s->root_directory_start_only, | |
1196 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1197 | goto fail; |
1198 | ||
d6ea93e3 LP |
1199 | |
1200 | service_set_state(s, SERVICE_START_POST); | |
1201 | ||
1202 | if (!s->control_command) | |
034c6ed7 LP |
1203 | service_set_state(s, SERVICE_RUNNING); |
1204 | ||
1205 | return; | |
1206 | ||
1207 | fail: | |
87f0e418 | 1208 | log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1209 | service_enter_stop(s, false); |
1210 | } | |
1211 | ||
1212 | static void service_enter_start(Service *s) { | |
1213 | pid_t pid; | |
1214 | int r; | |
1215 | ||
1216 | assert(s); | |
1217 | ||
1218 | assert(s->exec_command[SERVICE_EXEC_START]); | |
1219 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next); | |
1220 | ||
81a2b7ce LP |
1221 | if ((r = service_spawn(s, |
1222 | s->exec_command[SERVICE_EXEC_START], | |
1223 | s->type == SERVICE_FORKING, | |
1224 | true, | |
1225 | true, | |
1226 | true, | |
1227 | &pid)) < 0) | |
034c6ed7 LP |
1228 | goto fail; |
1229 | ||
d6ea93e3 LP |
1230 | service_set_state(s, SERVICE_START); |
1231 | ||
034c6ed7 LP |
1232 | if (s->type == SERVICE_SIMPLE) { |
1233 | /* For simple services we immediately start | |
1234 | * the START_POST binaries. */ | |
1235 | ||
1236 | s->main_pid = pid; | |
1237 | s->main_pid_known = true; | |
1238 | service_enter_start_post(s); | |
1239 | ||
1240 | } else if (s->type == SERVICE_FORKING) { | |
1241 | ||
1242 | /* For forking services we wait until the start | |
1243 | * process exited. */ | |
1244 | ||
1245 | s->control_pid = pid; | |
1246 | s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
7d55e835 LP |
1247 | } else if (s->type == SERVICE_FINISH) { |
1248 | ||
1249 | /* For finishing services we wait until the start | |
1250 | * process exited, too, but it is our main process. */ | |
1251 | ||
1252 | s->main_pid = pid; | |
1253 | s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
034c6ed7 LP |
1254 | } else |
1255 | assert_not_reached("Unknown service type"); | |
1256 | ||
1257 | return; | |
1258 | ||
1259 | fail: | |
87f0e418 | 1260 | log_warning("%s failed to run start exectuable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1261 | service_enter_stop(s, false); |
1262 | } | |
1263 | ||
1264 | static void service_enter_start_pre(Service *s) { | |
1265 | int r; | |
1266 | ||
1267 | assert(s); | |
1268 | ||
d6ea93e3 | 1269 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) |
81a2b7ce LP |
1270 | if ((r = service_spawn(s, |
1271 | s->control_command, | |
1272 | true, | |
1273 | false, | |
1274 | !s->permissions_start_only, | |
1275 | !s->root_directory_start_only, | |
1276 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1277 | goto fail; |
1278 | ||
d6ea93e3 LP |
1279 | service_set_state(s, SERVICE_START_PRE); |
1280 | ||
1281 | if (!s->control_command) | |
034c6ed7 LP |
1282 | service_enter_start(s); |
1283 | ||
1284 | return; | |
1285 | ||
1286 | fail: | |
87f0e418 | 1287 | log_warning("%s failed to run start-pre executable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1288 | service_enter_dead(s, false, true); |
1289 | } | |
1290 | ||
1291 | static void service_enter_restart(Service *s) { | |
1292 | int r; | |
1293 | assert(s); | |
1294 | ||
87f0e418 | 1295 | if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0) |
034c6ed7 LP |
1296 | goto fail; |
1297 | ||
87f0e418 | 1298 | log_debug("%s scheduled restart job.", unit_id(UNIT(s))); |
034c6ed7 LP |
1299 | service_enter_dead(s, true, false); |
1300 | return; | |
1301 | ||
1302 | fail: | |
1303 | ||
87f0e418 | 1304 | log_warning("%s failed to schedule restart job: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1305 | service_enter_dead(s, false, false); |
1306 | } | |
1307 | ||
1308 | static void service_enter_reload(Service *s) { | |
1309 | int r; | |
1310 | ||
1311 | assert(s); | |
1312 | ||
d6ea93e3 | 1313 | if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) |
81a2b7ce LP |
1314 | if ((r = service_spawn(s, |
1315 | s->control_command, | |
1316 | true, | |
1317 | false, | |
1318 | !s->permissions_start_only, | |
1319 | !s->root_directory_start_only, | |
1320 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1321 | goto fail; |
1322 | ||
d6ea93e3 LP |
1323 | service_set_state(s, SERVICE_RELOAD); |
1324 | ||
1325 | if (!s->control_command) | |
034c6ed7 LP |
1326 | service_set_state(s, SERVICE_RUNNING); |
1327 | ||
1328 | return; | |
1329 | ||
1330 | fail: | |
87f0e418 | 1331 | log_warning("%s failed to run reload executable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1332 | service_enter_stop(s, false); |
1333 | } | |
1334 | ||
1335 | static void service_run_next(Service *s, bool success) { | |
1336 | int r; | |
1337 | ||
1338 | assert(s); | |
1339 | assert(s->control_command); | |
1340 | assert(s->control_command->command_next); | |
1341 | ||
1342 | if (!success) | |
1343 | s->failure = true; | |
1344 | ||
1345 | s->control_command = s->control_command->command_next; | |
1346 | ||
81a2b7ce LP |
1347 | if ((r = service_spawn(s, |
1348 | s->control_command, | |
1349 | true, | |
1350 | false, | |
1351 | !s->permissions_start_only, | |
1352 | !s->root_directory_start_only, | |
1353 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1354 | goto fail; |
1355 | ||
1356 | return; | |
1357 | ||
1358 | fail: | |
87f0e418 | 1359 | log_warning("%s failed to run spawn next executable: %s", unit_id(UNIT(s)), strerror(-r)); |
034c6ed7 LP |
1360 | |
1361 | if (s->state == SERVICE_STOP) | |
1362 | service_enter_stop_post(s, false); | |
1363 | else if (s->state == SERVICE_STOP_POST) | |
1364 | service_enter_dead(s, false, true); | |
1365 | else | |
1366 | service_enter_stop(s, false); | |
5cb5a6ff LP |
1367 | } |
1368 | ||
87f0e418 LP |
1369 | static int service_start(Unit *u) { |
1370 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1371 | |
1372 | assert(s); | |
1373 | ||
034c6ed7 LP |
1374 | /* We cannot fulfill this request right now, try again later |
1375 | * please! */ | |
1376 | if (s->state == SERVICE_STOP || | |
1377 | s->state == SERVICE_STOP_SIGTERM || | |
1378 | s->state == SERVICE_STOP_SIGKILL || | |
1379 | s->state == SERVICE_STOP_POST || | |
1380 | s->state == SERVICE_FINAL_SIGTERM || | |
1381 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
1382 | return -EAGAIN; |
1383 | ||
034c6ed7 LP |
1384 | /* Already on it! */ |
1385 | if (s->state == SERVICE_START_PRE || | |
1386 | s->state == SERVICE_START || | |
1387 | s->state == SERVICE_START_POST) | |
1388 | return 0; | |
1389 | ||
1390 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTAINANCE || s->state == SERVICE_AUTO_RESTART); | |
5cb5a6ff | 1391 | |
1e2e8133 LP |
1392 | /* Make sure we don't enter a busy loop of some kind. */ |
1393 | if (!ratelimit_test(&s->ratelimit)) { | |
1394 | log_warning("%s start request repeated too quickly, refusing to start.", unit_id(u)); | |
1395 | return -EAGAIN; | |
1396 | } | |
1397 | ||
034c6ed7 LP |
1398 | s->failure = false; |
1399 | s->main_pid_known = false; | |
1400 | ||
1401 | service_enter_start_pre(s); | |
1402 | return 0; | |
5cb5a6ff LP |
1403 | } |
1404 | ||
87f0e418 LP |
1405 | static int service_stop(Unit *u) { |
1406 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1407 | |
1408 | assert(s); | |
1409 | ||
034c6ed7 LP |
1410 | if (s->state == SERVICE_START_PRE || |
1411 | s->state == SERVICE_START || | |
1412 | s->state == SERVICE_START_POST || | |
1413 | s->state == SERVICE_RELOAD) | |
1414 | return -EAGAIN; | |
1415 | ||
1416 | if (s->state == SERVICE_AUTO_RESTART) { | |
1417 | service_set_state(s, SERVICE_DEAD); | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | assert(s->state == SERVICE_RUNNING); | |
5cb5a6ff | 1422 | |
034c6ed7 | 1423 | service_enter_stop(s, true); |
5cb5a6ff LP |
1424 | return 0; |
1425 | } | |
1426 | ||
87f0e418 LP |
1427 | static int service_reload(Unit *u) { |
1428 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1429 | |
1430 | assert(s); | |
1431 | ||
1432 | assert(s->state == SERVICE_RUNNING); | |
1433 | ||
1434 | service_enter_reload(s); | |
5cb5a6ff LP |
1435 | return 0; |
1436 | } | |
1437 | ||
87f0e418 LP |
1438 | static bool service_can_reload(Unit *u) { |
1439 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1440 | |
1441 | assert(s); | |
1442 | ||
1443 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
1444 | } | |
1445 | ||
87f0e418 LP |
1446 | static UnitActiveState service_active_state(Unit *u) { |
1447 | assert(u); | |
5cb5a6ff | 1448 | |
acbb0225 | 1449 | return state_translation_table[SERVICE(u)->state]; |
034c6ed7 LP |
1450 | } |
1451 | ||
1452 | static int main_pid_good(Service *s) { | |
1453 | assert(s); | |
1454 | ||
1455 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1456 | * don't know */ | |
1457 | ||
1458 | /* If we know the pid file, then lets just check if it is | |
1459 | * still valid */ | |
1460 | if (s->main_pid_known) | |
1461 | return s->main_pid > 0; | |
1462 | ||
1463 | /* We don't know the pid */ | |
8e274523 | 1464 | return -EAGAIN; |
034c6ed7 LP |
1465 | } |
1466 | ||
1467 | static bool control_pid_good(Service *s) { | |
1468 | assert(s); | |
5cb5a6ff | 1469 | |
034c6ed7 | 1470 | return s->control_pid > 0; |
5cb5a6ff LP |
1471 | } |
1472 | ||
8e274523 LP |
1473 | static int cgroup_good(Service *s) { |
1474 | assert(s); | |
1475 | ||
1476 | if (s->valid_no_process) | |
1477 | return -EAGAIN; | |
1478 | ||
1479 | return cgroup_bonding_is_empty_list(UNIT(s)->meta.cgroup_bondings); | |
1480 | } | |
1481 | ||
87f0e418 LP |
1482 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
1483 | Service *s = SERVICE(u); | |
034c6ed7 | 1484 | bool success; |
5cb5a6ff LP |
1485 | |
1486 | assert(s); | |
034c6ed7 LP |
1487 | assert(pid >= 0); |
1488 | ||
bd982a8b | 1489 | success = code == CLD_EXITED && status == 0; |
034c6ed7 LP |
1490 | s->failure = s->failure || !success; |
1491 | ||
1492 | if (s->main_pid == pid) { | |
1493 | ||
1494 | exec_status_fill(&s->main_exec_status, pid, code, status); | |
1495 | s->main_pid = 0; | |
1496 | ||
7d55e835 | 1497 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_FINISH) { |
034c6ed7 LP |
1498 | assert(s->exec_command[SERVICE_EXEC_START]); |
1499 | s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status; | |
1500 | } | |
1501 | ||
94f04347 | 1502 | log_debug("%s: main process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(code), status); |
034c6ed7 LP |
1503 | |
1504 | /* The service exited, so the service is officially | |
1505 | * gone. */ | |
1506 | ||
1507 | switch (s->state) { | |
1508 | ||
1509 | case SERVICE_START_POST: | |
1510 | case SERVICE_RELOAD: | |
1511 | case SERVICE_STOP: | |
1512 | /* Need to wait until the operation is | |
1513 | * done */ | |
1514 | break; | |
1515 | ||
7d55e835 LP |
1516 | case SERVICE_START: |
1517 | assert(s->type == SERVICE_FINISH); | |
1518 | ||
1519 | /* This was our main goal, so let's go on */ | |
1520 | if (success) | |
1521 | service_enter_start_post(s); | |
1522 | else | |
1523 | service_enter_stop(s, false); | |
1524 | break; | |
1525 | ||
034c6ed7 LP |
1526 | case SERVICE_RUNNING: |
1527 | service_enter_stop(s, success); | |
1528 | break; | |
1529 | ||
1530 | case SERVICE_STOP_SIGTERM: | |
1531 | case SERVICE_STOP_SIGKILL: | |
1532 | ||
1533 | if (!control_pid_good(s)) | |
1534 | service_enter_stop_post(s, success); | |
5cb5a6ff | 1535 | |
034c6ed7 LP |
1536 | /* If there is still a control process, wait for that first */ |
1537 | break; | |
5cb5a6ff | 1538 | |
034c6ed7 LP |
1539 | default: |
1540 | assert_not_reached("Uh, main process died at wrong time."); | |
1541 | } | |
5cb5a6ff | 1542 | |
034c6ed7 LP |
1543 | } else if (s->control_pid == pid) { |
1544 | assert(s->control_command); | |
1545 | ||
1546 | exec_status_fill(&s->control_command->exec_status, pid, code, status); | |
1547 | s->control_pid = 0; | |
1548 | ||
94f04347 | 1549 | log_debug("%s: control process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(code), status); |
034c6ed7 LP |
1550 | |
1551 | /* If we are shutting things down anyway we | |
1552 | * don't care about failing commands. */ | |
1553 | ||
1554 | if (s->control_command->command_next && | |
b866264a | 1555 | (success || (s->state == SERVICE_STOP || s->state == SERVICE_STOP_POST))) |
034c6ed7 LP |
1556 | |
1557 | /* There is another command to * | |
1558 | * execute, so let's do that. */ | |
1559 | ||
1560 | service_run_next(s, success); | |
1561 | ||
1562 | else { | |
1563 | /* No further commands for this step, so let's | |
1564 | * figure out what to do next */ | |
1565 | ||
94f04347 | 1566 | log_debug("%s got final SIGCHLD for state %s", unit_id(u), service_state_to_string(s->state)); |
bd982a8b | 1567 | |
034c6ed7 LP |
1568 | switch (s->state) { |
1569 | ||
1570 | case SERVICE_START_PRE: | |
1571 | if (success) | |
1572 | service_enter_start(s); | |
1573 | else | |
1574 | service_enter_stop(s, false); | |
1575 | break; | |
1576 | ||
1577 | case SERVICE_START: | |
1578 | assert(s->type == SERVICE_FORKING); | |
1579 | ||
1580 | /* Let's try to load the pid | |
1581 | * file here if we can. We | |
1582 | * ignore the return value, | |
1583 | * since the PID file might | |
1584 | * actually be created by a | |
1585 | * START_POST script */ | |
1586 | ||
1587 | if (success) { | |
1588 | if (s->pid_file) | |
1589 | service_load_pid_file(s); | |
1590 | ||
1591 | service_enter_start_post(s); | |
1592 | } else | |
1593 | service_enter_stop(s, false); | |
1594 | ||
1595 | break; | |
1596 | ||
1597 | case SERVICE_START_POST: | |
1598 | if (success && s->pid_file && !s->main_pid_known) { | |
1599 | int r; | |
1600 | ||
1601 | /* Hmm, let's see if we can | |
1602 | * load the pid now after the | |
1603 | * start-post scripts got | |
1604 | * executed. */ | |
1605 | ||
1606 | if ((r = service_load_pid_file(s)) < 0) | |
87f0e418 | 1607 | log_warning("%s: failed to load PID file %s: %s", unit_id(UNIT(s)), s->pid_file, strerror(-r)); |
034c6ed7 LP |
1608 | } |
1609 | ||
1610 | /* Fall through */ | |
1611 | ||
1612 | case SERVICE_RELOAD: | |
1613 | if (success) { | |
8e274523 | 1614 | if (main_pid_good(s) != 0 && cgroup_good(s) != 0) |
034c6ed7 LP |
1615 | service_set_state(s, SERVICE_RUNNING); |
1616 | else | |
1617 | service_enter_stop(s, true); | |
1618 | } else | |
1619 | service_enter_stop(s, false); | |
1620 | ||
1621 | break; | |
1622 | ||
1623 | case SERVICE_STOP: | |
1624 | if (main_pid_good(s) > 0) | |
1625 | /* Still not dead and we know the PID? Let's go hunting. */ | |
1626 | service_enter_signal(s, SERVICE_STOP_SIGTERM, success); | |
1627 | else | |
1628 | service_enter_stop_post(s, success); | |
1629 | break; | |
1630 | ||
1631 | case SERVICE_STOP_SIGTERM: | |
1632 | case SERVICE_STOP_SIGKILL: | |
1633 | if (main_pid_good(s) <= 0) | |
1634 | service_enter_stop_post(s, success); | |
1635 | ||
1636 | /* If there is still a service | |
1637 | * process around, wait until | |
1638 | * that one quit, too */ | |
1639 | break; | |
1640 | ||
1641 | case SERVICE_STOP_POST: | |
1642 | case SERVICE_FINAL_SIGTERM: | |
1643 | case SERVICE_FINAL_SIGKILL: | |
1644 | service_enter_dead(s, success, true); | |
1645 | break; | |
1646 | ||
1647 | default: | |
1648 | assert_not_reached("Uh, control process died at wrong time."); | |
1649 | } | |
1650 | } | |
1651 | } else | |
1652 | assert_not_reached("Got SIGCHLD for unkown PID"); | |
1653 | } | |
1654 | ||
acbb0225 | 1655 | static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { |
87f0e418 | 1656 | Service *s = SERVICE(u); |
034c6ed7 LP |
1657 | |
1658 | assert(s); | |
1659 | assert(elapsed == 1); | |
1660 | ||
acbb0225 | 1661 | assert(w == &s->timer_watch); |
034c6ed7 LP |
1662 | |
1663 | switch (s->state) { | |
1664 | ||
1665 | case SERVICE_START_PRE: | |
1666 | case SERVICE_START: | |
1667 | case SERVICE_START_POST: | |
1668 | case SERVICE_RELOAD: | |
87f0e418 | 1669 | log_warning("%s operation timed out. Stopping.", unit_id(u)); |
034c6ed7 LP |
1670 | service_enter_stop(s, false); |
1671 | break; | |
1672 | ||
1673 | case SERVICE_STOP: | |
87f0e418 | 1674 | log_warning("%s stopping timed out. Terminating.", unit_id(u)); |
034c6ed7 LP |
1675 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); |
1676 | break; | |
1677 | ||
1678 | case SERVICE_STOP_SIGTERM: | |
87f0e418 | 1679 | log_warning("%s stopping timed out. Killing.", unit_id(u)); |
034c6ed7 LP |
1680 | service_enter_signal(s, SERVICE_STOP_SIGKILL, false); |
1681 | break; | |
1682 | ||
1683 | case SERVICE_STOP_SIGKILL: | |
1684 | /* Uh, wie sent a SIGKILL and it is still not gone? | |
1685 | * Must be something we cannot kill, so let's just be | |
1686 | * weirded out and continue */ | |
1687 | ||
87f0e418 | 1688 | log_warning("%s still around after SIGKILL. Ignoring.", unit_id(u)); |
034c6ed7 LP |
1689 | service_enter_stop_post(s, false); |
1690 | break; | |
1691 | ||
1692 | case SERVICE_STOP_POST: | |
87f0e418 | 1693 | log_warning("%s stopping timed out (2). Terminating.", unit_id(u)); |
034c6ed7 LP |
1694 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
1695 | break; | |
1696 | ||
1697 | case SERVICE_FINAL_SIGTERM: | |
87f0e418 | 1698 | log_warning("%s stopping timed out (2). Killing.", unit_id(u)); |
034c6ed7 LP |
1699 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, false); |
1700 | break; | |
1701 | ||
1702 | case SERVICE_FINAL_SIGKILL: | |
87f0e418 | 1703 | log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", unit_id(u)); |
034c6ed7 LP |
1704 | service_enter_dead(s, false, true); |
1705 | break; | |
1706 | ||
1707 | case SERVICE_AUTO_RESTART: | |
87f0e418 | 1708 | log_debug("%s holdoff time over, scheduling restart.", unit_id(u)); |
034c6ed7 LP |
1709 | service_enter_restart(s); |
1710 | break; | |
1711 | ||
1712 | default: | |
1713 | assert_not_reached("Timeout at wrong time."); | |
1714 | } | |
5cb5a6ff LP |
1715 | } |
1716 | ||
8e274523 LP |
1717 | static void service_cgroup_notify_event(Unit *u) { |
1718 | Service *s = SERVICE(u); | |
1719 | ||
1720 | assert(u); | |
1721 | ||
1722 | log_debug("%s: cgroup is empty", unit_id(u)); | |
1723 | ||
1724 | switch (s->state) { | |
1725 | ||
1726 | /* Waiting for SIGCHLD is usually more interesting, | |
1727 | * because it includes return codes/signals. Which is | |
1728 | * why we ignore the cgroup events for most cases, | |
1729 | * except when we don't know pid which to expect the | |
1730 | * SIGCHLD for. */ | |
1731 | ||
1732 | case SERVICE_RUNNING: | |
1733 | ||
1734 | if (!s->valid_no_process && main_pid_good(s) <= 0) | |
1735 | service_enter_stop(s, true); | |
1736 | ||
1737 | break; | |
1738 | ||
1739 | default: | |
1740 | ; | |
1741 | } | |
1742 | } | |
1743 | ||
2c4104f0 | 1744 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
1745 | char **p; |
1746 | unsigned i; | |
1747 | DIR *d = NULL; | |
1748 | char *path = NULL, *fpath = NULL, *name = NULL; | |
1749 | int r; | |
1750 | ||
1751 | assert(m); | |
1752 | ||
1753 | STRV_FOREACH(p, m->sysvinit_path) | |
23a177ef | 1754 | for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { |
2c4104f0 LP |
1755 | struct dirent *de; |
1756 | ||
1757 | free(path); | |
1758 | path = NULL; | |
23a177ef | 1759 | if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) { |
2c4104f0 LP |
1760 | r = -ENOMEM; |
1761 | goto finish; | |
1762 | } | |
1763 | ||
1764 | if (d) | |
1765 | closedir(d); | |
1766 | ||
1767 | if (!(d = opendir(path))) { | |
1768 | if (errno != ENOENT) | |
1769 | log_warning("opendir() failed on %s: %s", path, strerror(errno)); | |
1770 | ||
1771 | continue; | |
1772 | } | |
1773 | ||
1774 | while ((de = readdir(d))) { | |
1775 | Unit *runlevel, *service; | |
1776 | ||
1777 | if (ignore_file(de->d_name)) | |
1778 | continue; | |
1779 | ||
1780 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
1781 | continue; | |
1782 | ||
1783 | if (strlen(de->d_name) < 4) | |
1784 | continue; | |
1785 | ||
1786 | free(fpath); | |
1787 | fpath = NULL; | |
23a177ef | 1788 | if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i], de->d_name) < 0) { |
2c4104f0 LP |
1789 | r = -ENOMEM; |
1790 | goto finish; | |
1791 | } | |
1792 | ||
1793 | if (access(fpath, X_OK) < 0) { | |
1794 | ||
1795 | if (errno != ENOENT) | |
1796 | log_warning("access() failed on %s: %s", fpath, strerror(errno)); | |
1797 | ||
1798 | continue; | |
1799 | } | |
1800 | ||
1801 | free(name); | |
1802 | name = NULL; | |
1803 | if (asprintf(&name, "%s.service", de->d_name+3) < 0) { | |
1804 | r = -ENOMEM; | |
1805 | goto finish; | |
1806 | } | |
1807 | ||
1808 | if ((r = manager_load_unit(m, name, &service)) < 0) | |
1809 | goto finish; | |
1810 | ||
23a177ef | 1811 | if ((r = manager_load_unit(m, rcnd_table[i+1], &runlevel)) < 0) |
2c4104f0 LP |
1812 | goto finish; |
1813 | ||
1814 | if (de->d_name[0] == 'S') { | |
1815 | if ((r = unit_add_dependency(runlevel, UNIT_WANTS, service)) < 0) | |
1816 | goto finish; | |
1817 | ||
1818 | if ((r = unit_add_dependency(runlevel, UNIT_AFTER, service)) < 0) | |
1819 | goto finish; | |
23a177ef LP |
1820 | |
1821 | } else if (de->d_name[0] == 'K' && | |
1822 | (streq(rcnd_table[i+1], SPECIAL_RUNLEVEL0_TARGET) || | |
1823 | streq(rcnd_table[i+1], SPECIAL_RUNLEVEL6_TARGET))) { | |
1824 | ||
1825 | /* We honour K links only for | |
1826 | * halt/reboot. For the normal | |
1827 | * runlevels we assume the | |
1828 | * stop jobs will be | |
1829 | * implicitly added by the | |
1830 | * core logic. */ | |
1831 | ||
2c4104f0 LP |
1832 | if ((r = unit_add_dependency(runlevel, UNIT_CONFLICTS, service)) < 0) |
1833 | goto finish; | |
1834 | ||
1835 | if ((r = unit_add_dependency(runlevel, UNIT_BEFORE, service)) < 0) | |
1836 | goto finish; | |
1837 | } | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | r = 0; | |
1842 | ||
1843 | finish: | |
1844 | free(path); | |
1845 | free(fpath); | |
1846 | free(name); | |
1847 | closedir(d); | |
1848 | ||
1849 | return r; | |
1850 | } | |
1851 | ||
94f04347 LP |
1852 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
1853 | [SERVICE_DEAD] = "dead", | |
1854 | [SERVICE_START_PRE] = "start-pre", | |
1855 | [SERVICE_START] = "start", | |
1856 | [SERVICE_START_POST] = "start-post", | |
1857 | [SERVICE_RUNNING] = "running", | |
1858 | [SERVICE_RELOAD] = "reload", | |
1859 | [SERVICE_STOP] = "stop", | |
1860 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
1861 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
1862 | [SERVICE_STOP_POST] = "stop-post", | |
1863 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
1864 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
1865 | [SERVICE_MAINTAINANCE] = "maintainance", | |
1866 | [SERVICE_AUTO_RESTART] = "auto-restart", | |
1867 | }; | |
1868 | ||
1869 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
1870 | ||
1871 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
1872 | [SERVICE_ONCE] = "once", | |
1873 | [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success", | |
1874 | [SERVICE_RESTART_ALWAYS] = "restart-on-failure", | |
1875 | }; | |
1876 | ||
1877 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
1878 | ||
1879 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
1880 | [SERVICE_FORKING] = "forking", | |
1881 | [SERVICE_SIMPLE] = "simple", | |
1882 | [SERVICE_FINISH] = "finish" | |
1883 | }; | |
1884 | ||
1885 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
1886 | ||
1887 | static const char* const service_exec_command_table[_SERVICE_EXEC_MAX] = { | |
1888 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", | |
1889 | [SERVICE_EXEC_START] = "ExecStart", | |
1890 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
1891 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
1892 | [SERVICE_EXEC_STOP] = "ExecStop", | |
1893 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
1894 | }; | |
1895 | ||
1896 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
1897 | ||
87f0e418 | 1898 | const UnitVTable service_vtable = { |
5cb5a6ff LP |
1899 | .suffix = ".service", |
1900 | ||
034c6ed7 LP |
1901 | .init = service_init, |
1902 | .done = service_done, | |
1903 | ||
5cb5a6ff LP |
1904 | .dump = service_dump, |
1905 | ||
1906 | .start = service_start, | |
1907 | .stop = service_stop, | |
1908 | .reload = service_reload, | |
1909 | ||
034c6ed7 LP |
1910 | .can_reload = service_can_reload, |
1911 | ||
5cb5a6ff LP |
1912 | .active_state = service_active_state, |
1913 | ||
034c6ed7 LP |
1914 | .sigchld_event = service_sigchld_event, |
1915 | .timer_event = service_timer_event, | |
2c4104f0 | 1916 | |
8e274523 LP |
1917 | .cgroup_notify_empty = service_cgroup_notify_event, |
1918 | ||
2c4104f0 | 1919 | .enumerate = service_enumerate |
5cb5a6ff | 1920 | }; |