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mount: only add those mount points to localfs.target as Wants that are marked for us
[thirdparty/systemd.git] / service.c
CommitLineData
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 38static const char * const rcnd_table[] = {
adcbe07c
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,
46 "/boot.d", SPECIAL_BASIC_TARGET
23a177ef
LP		 47};
48
acbb0225 49static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 50 [SERVICE_DEAD] = UNIT_INACTIVE,
51 [SERVICE_START_PRE] = UNIT_ACTIVATING,
52 [SERVICE_START] = UNIT_ACTIVATING,
53 [SERVICE_START_POST] = UNIT_ACTIVATING,
54 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 55 [SERVICE_EXITED] = UNIT_ACTIVE,
87f0e418
LP		 56 [SERVICE_RELOAD] = UNIT_ACTIVE_RELOADING,
57 [SERVICE_STOP] = UNIT_DEACTIVATING,
58 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
59 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
60 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
61 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
62 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
63 [SERVICE_MAINTAINANCE] = UNIT_INACTIVE,
64 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING,
034c6ed7 65};
5cb5a6ff 66
5e94833f
LP		 67static void service_unwatch_control_pid(Service *s) {
68 assert(s);
69
70 if (s->control_pid <= 0)
71 return;
72
73 unit_unwatch_pid(UNIT(s), s->control_pid);
74 s->control_pid = 0;
75}
76
77static void service_unwatch_main_pid(Service *s) {
78 assert(s);
79
80 if (s->main_pid <= 0)
81 return;
82
83 unit_unwatch_pid(UNIT(s), s->main_pid);
84 s->main_pid = 0;
85}
86
87f0e418
LP		 87static void service_done(Unit *u) {
88 Service *s = SERVICE(u);
44d8db9e
LP		 89
90 assert(s);
91
92 free(s->pid_file);
93 s->pid_file = NULL;
94
2c4104f0
LP		 95 free(s->sysv_path);
96 s->sysv_path = NULL;
97
8309400a
LP		 98 free(s->sysv_runlevels);
99 s->sysv_runlevels = NULL;
100
44d8db9e 101 exec_context_done(&s->exec_context);
e537352b 102 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 103 s->control_command = NULL;
104
105 /* This will leak a process, but at least no memory or any of
106 * our resources */
5e94833f
LP		 107 service_unwatch_main_pid(s);
108 service_unwatch_control_pid(s);
44d8db9e 109
acbb0225 110 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 111}
112
2c4104f0
LP		 113static int sysv_translate_name(const char *name, char **_r) {
114
115 static const char * const table[] = {
116 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
117 "$network", SPECIAL_NETWORK_TARGET,
118 "$named", SPECIAL_NSS_LOOKUP_TARGET,
119 "$portmap", SPECIAL_RPCBIND_TARGET,
120 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
121 "$syslog", SPECIAL_SYSLOG_TARGET,
122 "$time", SPECIAL_RTC_SET_TARGET
123 };
124
125 unsigned i;
126 char *r;
127
128 for (i = 0; i < ELEMENTSOF(table); i += 2)
129 if (streq(table[i], name)) {
130 if (!(r = strdup(table[i+1])))
131 return -ENOMEM;
132
133 goto finish;
134 }
135
136 if (*name == '$')
137 return 0;
138
139 if (asprintf(&r, "%s.service", name) < 0)
140 return -ENOMEM;
141
142finish:
143
144 if (_r)
145 *_r = r;
146
147 return 1;
148}
149
150static int sysv_chkconfig_order(Service *s) {
151 Meta *other;
152 int r;
153
154 assert(s);
155
156 if (s->sysv_start_priority < 0)
157 return 0;
158
23a177ef
LP		 159 /* For each pair of services where at least one lacks a LSB
160 * header, we use the start priority value to order things. */
2c4104f0
LP		 161
162 LIST_FOREACH(units_per_type, other, UNIT(s)->meta.manager->units_per_type[UNIT_SERVICE]) {
163 Service *t;
164 UnitDependency d;
165
166 t = (Service*) other;
167
168 if (s == t)
169 continue;
170
171 if (t->sysv_start_priority < 0)
172 continue;
173
51a1a79d
LP		 174 /* If both units have modern headers we don't care
175 * about the priorities */
176 if ((!s->sysv_path || s->sysv_has_lsb) &&
177 (!t->sysv_path || t->sysv_has_lsb))
23a177ef
LP		 178 continue;
179
2c4104f0
LP		 180 if (t->sysv_start_priority < s->sysv_start_priority)
181 d = UNIT_AFTER;
182 else if (t->sysv_start_priority > s->sysv_start_priority)
183 d = UNIT_BEFORE;
184 else
185 continue;
186
187 /* FIXME: Maybe we should compare the name here lexicographically? */
188
189 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t))) < 0)
190 return r;
191 }
192
193 return 0;
194}
195
196static ExecCommand *exec_command_new(const char *path, const char *arg1) {
197 ExecCommand *c;
198
199 if (!(c = new0(ExecCommand, 1)))
200 return NULL;
201
202 if (!(c->path = strdup(path))) {
203 free(c);
204 return NULL;
205 }
206
207 if (!(c->argv = strv_new(path, arg1, NULL))) {
208 free(c->path);
209 free(c);
210 return NULL;
211 }
212
213 return c;
214}
215
216static int sysv_exec_commands(Service *s) {
217 ExecCommand *c;
218
219 assert(s);
220 assert(s->sysv_path);
221
222 if (!(c = exec_command_new(s->sysv_path, "start")))
223 return -ENOMEM;
224 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
225
226 if (!(c = exec_command_new(s->sysv_path, "stop")))
227 return -ENOMEM;
228 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
229
230 if (!(c = exec_command_new(s->sysv_path, "reload")))
231 return -ENOMEM;
232 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
233
234 return 0;
235}
236
23a177ef
LP		 237static int priority_from_rcd(Service *s, const char *init_script) {
238 char **p;
239 unsigned i;
240
061978fa 241 STRV_FOREACH(p, UNIT(s)->meta.manager->sysvrcnd_path)
23a177ef
LP		 242 for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) {
243 char *path;
244 DIR *d;
245 struct dirent *de;
246
247 if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0)
248 return -ENOMEM;
249
250 d = opendir(path);
251 free(path);
252
253 if (!d) {
254 if (errno != ENOENT)
255 log_warning("opendir() failed on %s: %s", path, strerror(errno));
256
257 continue;
258 }
259
260 while ((de = readdir(d))) {
261 int a, b;
262
263 if (ignore_file(de->d_name))
264 continue;
265
266 if (de->d_name[0] != 'S')
267 continue;
268
269 if (strlen(de->d_name) < 4)
270 continue;
271
272 if (!streq(de->d_name + 3, init_script))
273 continue;
274
275 /* Yay, we found it! Now decode the priority */
276
277 a = undecchar(de->d_name[1]);
278 b = undecchar(de->d_name[2]);
279
280 if (a < 0 || b < 0)
281 continue;
282
283 s->sysv_start_priority = a*10 + b;
284
285 log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, unit_id(UNIT(s)));
286
287 closedir(d);
288 return 0;
289 }
290
291 closedir(d);
292 }
293
294 return 0;
295}
296
e537352b 297static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 298 FILE *f;
299 Unit *u;
300 unsigned line = 0;
301 int r;
302 enum {
303 NORMAL,
304 DESCRIPTION,
305 LSB,
306 LSB_DESCRIPTION
307 } state = NORMAL;
23a177ef
LP		 308
309 assert(s);
310 assert(path);
2c4104f0
LP		 311
312 u = UNIT(s);
313
314 if (!(f = fopen(path, "re"))) {
315 r = errno == ENOENT ? 0 : -errno;
316 goto finish;
317 }
318
319 s->type = SERVICE_FORKING;
320 s->restart = SERVICE_ONCE;
321
322 free(s->sysv_path);
323 if (!(s->sysv_path = strdup(path))) {
324 r = -ENOMEM;
325 goto finish;
326 }
327
328 while (!feof(f)) {
329 char l[LINE_MAX], *t;
330
331 if (!fgets(l, sizeof(l), f)) {
332 if (feof(f))
333 break;
334
335 r = -errno;
336 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
337 goto finish;
338 }
339
340 line++;
341
342 t = strstrip(l);
343 if (*t != '#')
344 continue;
345
346 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
347 state = LSB;
23a177ef 348 s->sysv_has_lsb = true;
2c4104f0
LP		 349 continue;
350 }
351
352 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
353 state = NORMAL;
354 continue;
355 }
356
357 t++;
358 t += strspn(t, WHITESPACE);
359
360 if (state == NORMAL) {
361
362 /* Try to parse Red Hat style chkconfig headers */
363
364 if (startswith(t, "chkconfig:")) {
365 int start_priority;
8309400a 366 char runlevels[16], *k;
2c4104f0
LP		 367
368 state = NORMAL;
369
8309400a
LP		 370 if (sscanf(t+10, "%15s %i %*i",
371 runlevels,
372 &start_priority) != 2) {
2c4104f0
LP		 373
374 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
375 continue;
376 }
377
8309400a 378 if (start_priority < 0 || start_priority > 99)
2c4104f0 379 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
8309400a
LP		 380 else
381 s->sysv_start_priority = start_priority;
382
383 char_array_0(runlevels);
384 k = delete_chars(runlevels, WHITESPACE "-");
385
386 if (k[0]) {
387 char *d;
388
389 if (!(d = strdup(k))) {
390 r = -ENOMEM;
391 goto finish;
392 }
393
394 free(s->sysv_runlevels);
395 s->sysv_runlevels = d;
2c4104f0
LP		 396 }
397
2c4104f0
LP		 398
399 } else if (startswith(t, "description:")) {
400
401 size_t k = strlen(t);
402 char *d;
403
404 if (t[k-1] == '\\') {
405 state = DESCRIPTION;
406 t[k-1] = 0;
407 }
408
409 if (!(d = strdup(strstrip(t+12)))) {
410 r = -ENOMEM;
411 goto finish;
412 }
413
414 free(u->meta.description);
415 u->meta.description = d;
416
417 } else if (startswith(t, "pidfile:")) {
418
419 char *fn;
420
421 state = NORMAL;
422
423 fn = strstrip(t+8);
424 if (!path_is_absolute(fn)) {
425 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
426 continue;
427 }
428
429 if (!(fn = strdup(fn))) {
430 r = -ENOMEM;
431 goto finish;
432 }
433
434 free(s->pid_file);
435 s->pid_file = fn;
436 }
437
438 } else if (state == DESCRIPTION) {
439
440 /* Try to parse Red Hat style description
441 * continuation */
442
443 size_t k = strlen(t);
444 char *d;
445
446 if (t[k-1] == '\\')
447 t[k-1] = 0;
448 else
449 state = NORMAL;
450
451 assert(u->meta.description);
452 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
453 r = -ENOMEM;
454 goto finish;
455 }
456
457 free(u->meta.description);
458 u->meta.description = d;
459
460 } else if (state == LSB || state == LSB_DESCRIPTION) {
461
462 if (startswith(t, "Provides:")) {
463 char *i, *w;
464 size_t z;
465
466 state = LSB;
467
468 FOREACH_WORD(w, z, t+9, i) {
469 char *n, *m;
470
471 if (!(n = strndup(w, z))) {
472 r = -ENOMEM;
473 goto finish;
474 }
475
476 r = sysv_translate_name(n, &m);
477 free(n);
478
479 if (r < 0)
480 goto finish;
481
482 if (r == 0)
483 continue;
484
bd77d0fc
LP		 485 if (unit_name_to_type(m) == UNIT_SERVICE)
486 r = unit_add_name(u, m);
487 else {
488 if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m)) >= 0)
489 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m);
490 }
491
2c4104f0
LP		 492 free(m);
493
494 if (r < 0)
495 goto finish;
496 }
497
498 } else if (startswith(t, "Required-Start:") ||
499 startswith(t, "Should-Start:")) {
500 char *i, *w;
501 size_t z;
502
503 state = LSB;
504
505 FOREACH_WORD(w, z, strchr(t, ':')+1, i) {
506 char *n, *m;
507
508 if (!(n = strndup(w, z))) {
509 r = -ENOMEM;
510 goto finish;
511 }
512
513 r = sysv_translate_name(n, &m);
514 free(n);
515
516 if (r < 0)
517 goto finish;
518
519 if (r == 0)
520 continue;
521
fc22fc6e 522 r = unit_add_dependency_by_name(u, UNIT_AFTER, m);
2c4104f0
LP		 523 free(m);
524
525 if (r < 0)
526 goto finish;
527 }
8309400a
LP		 528 } else if (startswith(t, "Default-Start:")) {
529 char *k, *d;
530
531 state = LSB;
532
533 k = delete_chars(t+14, WHITESPACE "-");
534
535 if (k[0] != 0) {
536 if (!(d = strdup(k))) {
537 r = -ENOMEM;
538 goto finish;
539 }
540
541 free(s->sysv_runlevels);
542 s->sysv_runlevels = d;
543 }
2c4104f0
LP		 544
545 } else if (startswith(t, "Description:")) {
546 char *d;
547
548 state = LSB_DESCRIPTION;
549
550 if (!(d = strdup(strstrip(t+12)))) {
551 r = -ENOMEM;
552 goto finish;
553 }
554
555 free(u->meta.description);
556 u->meta.description = d;
557
8309400a
LP		 558 } else if (startswith(t, "Short-Description:") &&
559 !u->meta.description) {
2c4104f0
LP		 560 char *d;
561
562 /* We use the short description only
563 * if no long description is set. */
564
565 state = LSB;
566
567 if (!(d = strdup(strstrip(t+18)))) {
568 r = -ENOMEM;
569 goto finish;
570 }
571
2c4104f0
LP		 572 u->meta.description = d;
573
574 } else if (state == LSB_DESCRIPTION) {
575
576 if (startswith(l, "#\t") || startswith(l, "# ")) {
577 char *d;
578
579 assert(u->meta.description);
580 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
581 r = -ENOMEM;
582 goto finish;
583 }
584
585 free(u->meta.description);
586 u->meta.description = d;
587 } else
588 state = LSB;
589 }
590 }
591 }
592
23a177ef
LP		 593 /* If init scripts have no LSB header, then we enforce the
594 * ordering via the chkconfig priorities. We try to determine
595 * a priority for *all* init scripts here, since they are
596 * needed as soon as at least one non-LSB script is used. */
2c4104f0 597
23a177ef
LP		 598 if (s->sysv_start_priority < 0) {
599 log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", unit_id(u));
600
601 if ((r = priority_from_rcd(s, file_name_from_path(path))) < 0)
2c4104f0
LP		 602 goto finish;
603
23a177ef
LP		 604 if (s->sysv_start_priority < 0)
605 log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", unit_id(u));
606 }
607
2c4104f0
LP		 608 if ((r = sysv_exec_commands(s)) < 0)
609 goto finish;
610
0bc824be
LP		 611 if (!s->sysv_runlevels || chars_intersect("12345", s->sysv_runlevels)) {
612 /* If there a runlevels configured for this service
613 * but none of the standard ones, then we assume this
614 * is some special kind of service (which might be
615 * needed for early boot) and don't create any links
616 * to it. */
617
618 if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET)) < 0 ||
619 (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET)) < 0)
620 goto finish;
621 }
0fd030be 622
80876c20
LP		 623 /* Special setting for all SysV services */
624 s->valid_no_process = true;
625
90a13a44 626 /* Don't timeout special services during boot (like fsck) */
ba8c0bef 627 if (s->sysv_runlevels && !chars_intersect("12345", s->sysv_runlevels))
90a13a44
LP		 628 s->timeout_usec = -1;
629
e537352b 630 u->meta.load_state = UNIT_LOADED;
23a177ef 631 r = 0;
2c4104f0
LP		 632
633finish:
634
635 if (f)
636 fclose(f);
637
638 return r;
639}
640
e537352b 641static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 642 char **p;
643
644 assert(s);
645 assert(name);
646
647 STRV_FOREACH(p, UNIT(s)->meta.manager->sysvinit_path) {
648 char *path;
649 int r;
650
651 if (asprintf(&path, "%s/%s", *p, name) < 0)
652 return -ENOMEM;
653
654 assert(endswith(path, ".service"));
655 path[strlen(path)-8] = 0;
656
e537352b 657 r = service_load_sysv_path(s, path);
2c4104f0
LP		 658 free(path);
659
23a177ef 660 if (r < 0)
2c4104f0 661 return r;
23a177ef 662
e537352b 663 if ((UNIT(s)->meta.load_state != UNIT_STUB))
23a177ef 664 break;
2c4104f0
LP		 665 }
666
667 return 0;
668}
669
e537352b 670static int service_load_sysv(Service *s) {
2c4104f0
LP		 671 const char *t;
672 Iterator i;
673 int r;
674
5cb5a6ff
LP		 675 assert(s);
676
677 /* Load service data from SysV init scripts, preferably with
678 * LSB headers ... */
679
2c4104f0
LP		 680 if (strv_isempty(UNIT(s)->meta.manager->sysvinit_path))
681 return 0;
682
683 if ((t = unit_id(UNIT(s))))
e537352b 684 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 685 return r;
686
e537352b 687 if (UNIT(s)->meta.load_state == UNIT_STUB)
23a177ef 688 SET_FOREACH(t, UNIT(s)->meta.names, i) {
e537352b
LP		 689 if (t == unit_id(UNIT(s)))
690 continue;
691
692 if ((r == service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 693 return r;
694
e537352b 695 if (UNIT(s)->meta.load_state != UNIT_STUB)
23a177ef
LP		 696 break;
697 }
2c4104f0
LP		 698
699 return 0;
5cb5a6ff
LP		 700}
701
e537352b 702static void service_init(Unit *u) {
87f0e418 703 Service *s = SERVICE(u);
5cb5a6ff 704
e537352b
LP		 705 assert(u);
706 assert(u->meta.load_state == UNIT_STUB);
034c6ed7
LP		 707
708 s->type = 0;
709 s->restart = 0;
710
711 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
712 s->restart_usec = DEFAULT_RESTART_USEC;
713
714 exec_context_init(&s->exec_context);
715
acbb0225 716 s->timer_watch.type = WATCH_INVALID;
034c6ed7
LP		 717
718 s->state = SERVICE_DEAD;
5cb5a6ff 719
2c4104f0 720 s->sysv_start_priority = -1;
81a2b7ce
LP		 721 s->permissions_start_only = false;
722 s->root_directory_start_only = false;
50159e6a
LP		 723 s->valid_no_process = false;
724 s->kill_mode = 0;
23a177ef 725 s->sysv_has_lsb = false;
50159e6a
LP		 726 s->main_pid = s->control_pid = 0;
727 s->main_pid_known = false;
728 s->failure = false;
23a177ef 729
1e2e8133 730 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
e537352b
LP		 731}
732
243b1432
LP		 733static int service_verify(Service *s) {
734 assert(s);
735
736 if (UNIT(s)->meta.load_state != UNIT_LOADED)
737 return 0;
738
739 if (!s->exec_command[SERVICE_EXEC_START]) {
740 log_error("%s lacks ExecStart setting. Refusing.", unit_id(UNIT(s)));
741 return -EINVAL;
742 }
743
744 return 0;
745}
746
e537352b
LP		 747static int service_load(Unit *u) {
748 int r;
749 Service *s = SERVICE(u);
750
751 assert(s);
1e2e8133 752
5cb5a6ff 753 /* Load a .service file */
e537352b 754 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 755 return r;
756
bd77d0fc 757 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 758 if (u->meta.load_state == UNIT_STUB)
759 if ((r = service_load_sysv(s)) < 0)
23a177ef 760 return r;
d46de8a1 761
23a177ef 762 /* Still nothing found? Then let's give up */
e537352b 763 if (u->meta.load_state == UNIT_STUB)
23a177ef 764 return -ENOENT;
034c6ed7 765
23a177ef
LP		 766 /* We were able to load something, then let's add in the
767 * dropin directories. */
768 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 769 return r;
23a177ef
LP		 770
771 /* This is a new unit? Then let's add in some extras */
e537352b 772 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 773 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
774 return r;
775
776 if ((r = unit_add_default_cgroup(u)) < 0)
777 return r;
778
779 if ((r = sysv_chkconfig_order(s)) < 0)
780 return r;
8e274523
LP		 781 }
782
243b1432 783 return service_verify(s);
034c6ed7
LP		 784}
785
87f0e418 786static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 787
5cb5a6ff 788 ServiceExecCommand c;
87f0e418 789 Service *s = SERVICE(u);
47be870b
LP		 790 const char *prefix2;
791 char *p2;
5cb5a6ff
LP		 792
793 assert(s);
794
47be870b
LP		 795 p2 = strappend(prefix, "\t");
796 prefix2 = p2 ? p2 : prefix;
44d8db9e 797
5cb5a6ff 798 fprintf(f,
81a2b7ce
LP		 799 "%sService State: %s\n"
800 "%sPermissionsStartOnly: %s\n"
8e274523 801 "%sRootDirectoryStartOnly: %s\n"
03d6ab85 802 "%sValidNoProcess: %s\n"
50159e6a 803 "%sKillMode: %s\n"
03d6ab85 804 "%sType: %s\n",
81a2b7ce
LP		 805 prefix, service_state_to_string(s->state),
806 prefix, yes_no(s->permissions_start_only),
8e274523 807 prefix, yes_no(s->root_directory_start_only),
03d6ab85 808 prefix, yes_no(s->valid_no_process),
50159e6a 809 prefix, kill_mode_to_string(s->kill_mode),
03d6ab85 810 prefix, service_type_to_string(s->type));
5cb5a6ff 811
70123e68
LP		 812 if (s->control_pid > 0)
813 fprintf(f,
814 "%sControl PID: %llu\n",
815 prefix, (unsigned long long) s->control_pid);
816
817 if (s->main_pid > 0)
818 fprintf(f,
819 "%sMain PID: %llu\n",
820 prefix, (unsigned long long) s->main_pid);
821
034c6ed7
LP		 822 if (s->pid_file)
823 fprintf(f,
824 "%sPIDFile: %s\n",
825 prefix, s->pid_file);
826
5cb5a6ff
LP		 827 exec_context_dump(&s->exec_context, f, prefix);
828
e537352b 829 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 830
44d8db9e
LP		 831 if (!s->exec_command[c])
832 continue;
833
834 fprintf(f, "%s→ %s:\n",
94f04347 835 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 836
837 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 838 }
44d8db9e 839
2c4104f0
LP		 840 if (s->sysv_path)
841 fprintf(f,
23a177ef
LP		 842 "%sSysV Init Script Path: %s\n"
843 "%sSysV Init Script has LSB Header: %s\n",
844 prefix, s->sysv_path,
845 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 846
847 if (s->sysv_start_priority >= 0)
848 fprintf(f,
23a177ef 849 "%sSysVStartPriority: %i\n",
2c4104f0
LP		 850 prefix, s->sysv_start_priority);
851
8309400a
LP		 852 if (s->sysv_runlevels)
853 fprintf(f, "%sSysVRunLevels: %s\n",
854 prefix, s->sysv_runlevels);
23a177ef 855
47be870b 856 free(p2);
5cb5a6ff
LP		 857}
858
034c6ed7
LP		 859static int service_load_pid_file(Service *s) {
860 char *k;
861 unsigned long p;
862 int r;
863
864 assert(s);
865
866 if (s->main_pid_known)
867 return 0;
868
5e94833f
LP		 869 assert(s->main_pid <= 0);
870
034c6ed7
LP		 871 if (!s->pid_file)
872 return -ENOENT;
873
874 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
875 return r;
876
877 if ((r = safe_atolu(k, &p)) < 0) {
878 free(k);
879 return r;
880 }
881
882 if ((unsigned long) (pid_t) p != p)
883 return -ERANGE;
884
b8c597d5
LP		 885 if (kill((pid_t) p, 0) < 0 && errno != EPERM) {
886 log_warning("PID %llu read from file %s does not exist. Your service or init script might be broken.",
887 (unsigned long long) p, s->pid_file);
888 return -ESRCH;
889 }
890
16f6025e
LP		 891 if ((r = unit_watch_pid(UNIT(s), (pid_t) p)) < 0)
892 /* FIXME: we need to do something here */
893 return r;
894
b8c597d5 895 s->main_pid = (pid_t) p;
034c6ed7
LP		 896 s->main_pid_known = true;
897
898 return 0;
899}
900
3e33402a
LP		 901static int service_get_sockets(Service *s, Set **_set) {
902 Set *set;
ceee3d82
LP		 903 Iterator i;
904 char *t;
3e33402a 905 int r;
ceee3d82
LP		 906
907 assert(s);
3e33402a
LP		 908 assert(_set);
909
910 /* Collects all Socket objects that belong to this
911 * service. Note that a service might have multiple sockets
912 * via multiple names. */
913
914 if (!(set = set_new(NULL, NULL)))
915 return -ENOMEM;
ceee3d82
LP		 916
917 SET_FOREACH(t, UNIT(s)->meta.names, i) {
918 char *k;
919 Unit *p;
920
921 /* Look for all socket objects that go by any of our
922 * units and collect their fds */
923
3e33402a
LP		 924 if (!(k = unit_name_change_suffix(t, ".socket"))) {
925 r = -ENOMEM;
926 goto fail;
927 }
ceee3d82
LP		 928
929 p = manager_get_unit(UNIT(s)->meta.manager, k);
930 free(k);
931
3e33402a 932 if (!p) continue;
ceee3d82 933
3e33402a
LP		 934 if ((r = set_put(set, p)) < 0)
935 goto fail;
ceee3d82
LP		 936 }
937
3e33402a
LP		 938 *_set = set;
939 return 0;
940
941fail:
942 set_free(set);
943 return r;
944}
945
946
e537352b 947static int service_notify_sockets_dead(Service *s) {
3e33402a
LP		 948 Iterator i;
949 Set *set;
47be870b 950 Socket *sock;
3e33402a
LP		 951 int r;
952
953 assert(s);
954
955 /* Notifies all our sockets when we die */
956
957 if ((r = service_get_sockets(s, &set)) < 0)
958 return r;
959
47be870b
LP		 960 SET_FOREACH(sock, set, i)
961 socket_notify_service_dead(sock);
3e33402a
LP		 962
963 set_free(set);
964
ceee3d82
LP		 965 return 0;
966}
967
034c6ed7
LP		 968static void service_set_state(Service *s, ServiceState state) {
969 ServiceState old_state;
5cb5a6ff
LP		 970 assert(s);
971
034c6ed7 972 old_state = s->state;
5cb5a6ff 973 s->state = state;
034c6ed7
LP		 974
975 if (state != SERVICE_START_PRE &&
976 state != SERVICE_START &&
977 state != SERVICE_START_POST &&
978 state != SERVICE_RELOAD &&
979 state != SERVICE_STOP &&
980 state != SERVICE_STOP_SIGTERM &&
981 state != SERVICE_STOP_SIGKILL &&
982 state != SERVICE_STOP_POST &&
983 state != SERVICE_FINAL_SIGTERM &&
984 state != SERVICE_FINAL_SIGKILL &&
985 state != SERVICE_AUTO_RESTART)
acbb0225 986 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 987
7d55e835
LP		 988 if (state != SERVICE_START &&
989 state != SERVICE_START_POST &&
034c6ed7
LP		 990 state != SERVICE_RUNNING &&
991 state != SERVICE_RELOAD &&
992 state != SERVICE_STOP &&
993 state != SERVICE_STOP_SIGTERM &&
994 state != SERVICE_STOP_SIGKILL)
5e94833f 995 service_unwatch_main_pid(s);
034c6ed7
LP		 996
997 if (state != SERVICE_START_PRE &&
998 state != SERVICE_START &&
999 state != SERVICE_START_POST &&
1000 state != SERVICE_RELOAD &&
1001 state != SERVICE_STOP &&
1002 state != SERVICE_STOP_SIGTERM &&
1003 state != SERVICE_STOP_SIGKILL &&
1004 state != SERVICE_STOP_POST &&
1005 state != SERVICE_FINAL_SIGTERM &&
e537352b 1006 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1007 service_unwatch_control_pid(s);
034c6ed7 1008 s->control_command = NULL;
e537352b 1009 }
034c6ed7 1010
ceee3d82
LP		 1011 if (state == SERVICE_DEAD ||
1012 state == SERVICE_STOP ||
1013 state == SERVICE_STOP_SIGTERM ||
1014 state == SERVICE_STOP_SIGKILL ||
1015 state == SERVICE_STOP_POST ||
1016 state == SERVICE_FINAL_SIGTERM ||
1017 state == SERVICE_FINAL_SIGKILL ||
1018 state == SERVICE_MAINTAINANCE ||
1019 state == SERVICE_AUTO_RESTART)
e537352b 1020 service_notify_sockets_dead(s);
ceee3d82 1021
e537352b
LP		 1022 if (old_state != state)
1023 log_debug("%s changed %s → %s", unit_id(UNIT(s)), service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1024
1025 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1026}
1027
44d8db9e
LP		 1028static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1029 Iterator i;
1030 int r;
1031 int *rfds = NULL;
1032 unsigned rn_fds = 0;
3e33402a 1033 Set *set;
47be870b 1034 Socket *sock;
44d8db9e
LP		 1035
1036 assert(s);
1037 assert(fds);
1038 assert(n_fds);
1039
3e33402a
LP		 1040 if ((r = service_get_sockets(s, &set)) < 0)
1041 return r;
1042
47be870b 1043 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1044 int *cfds;
1045 unsigned cn_fds;
1046
47be870b 1047 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1048 goto fail;
1049
1050 if (!cfds)
1051 continue;
1052
1053 if (!rfds) {
1054 rfds = cfds;
1055 rn_fds = cn_fds;
1056 } else {
1057 int *t;
1058
1059 if (!(t = new(int, rn_fds+cn_fds))) {
1060 free(cfds);
1061 r = -ENOMEM;
1062 goto fail;
1063 }
1064
1065 memcpy(t, rfds, rn_fds);
1066 memcpy(t+rn_fds, cfds, cn_fds);
1067 free(rfds);
1068 free(cfds);
1069
1070 rfds = t;
1071 rn_fds = rn_fds+cn_fds;
1072 }
1073 }
1074
1075 *fds = rfds;
1076 *n_fds = rn_fds;
3e33402a
LP		 1077
1078 set_free(set);
1079
44d8db9e
LP		 1080 return 0;
1081
1082fail:
3e33402a 1083 set_free(set);
44d8db9e 1084 free(rfds);
3e33402a 1085
44d8db9e
LP		 1086 return r;
1087}
1088
81a2b7ce
LP		 1089static int service_spawn(
1090 Service *s,
1091 ExecCommand *c,
1092 bool timeout,
1093 bool pass_fds,
1094 bool apply_permissions,
1095 bool apply_chroot,
1096 pid_t *_pid) {
1097
034c6ed7
LP		 1098 pid_t pid;
1099 int r;
44d8db9e
LP		 1100 int *fds = NULL;
1101 unsigned n_fds = 0;
034c6ed7
LP		 1102
1103 assert(s);
1104 assert(c);
1105 assert(_pid);
1106
44d8db9e
LP		 1107 if (pass_fds)
1108 if ((r = service_collect_fds(s, &fds, &n_fds)) < 0)
1109 goto fail;
1110
034c6ed7 1111 if (timeout) {
acbb0225 1112 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1113 goto fail;
1114 } else
acbb0225 1115 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1116
81a2b7ce
LP		 1117 if ((r = exec_spawn(c,
1118 &s->exec_context,
1119 fds, n_fds,
1120 apply_permissions,
1121 apply_chroot,
80876c20 1122 UNIT(s)->meta.manager->confirm_spawn,
8e274523 1123 UNIT(s)->meta.cgroup_bondings,
81a2b7ce 1124 &pid)) < 0)
034c6ed7
LP		 1125 goto fail;
1126
87f0e418 1127 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1128 /* FIXME: we need to do something here */
1129 goto fail;
1130
44d8db9e 1131 free(fds);
034c6ed7
LP		 1132 *_pid = pid;
1133
5cb5a6ff 1134 return 0;
034c6ed7
LP		 1135
1136fail:
44d8db9e
LP		 1137 free(fds);
1138
034c6ed7 1139 if (timeout)
acbb0225 1140 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1141
1142 return r;
1143}
1144
80876c20
LP		 1145static int main_pid_good(Service *s) {
1146 assert(s);
1147
1148 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1149 * don't know */
1150
1151 /* If we know the pid file, then lets just check if it is
1152 * still valid */
1153 if (s->main_pid_known)
1154 return s->main_pid > 0;
1155
1156 /* We don't know the pid */
1157 return -EAGAIN;
1158}
1159
1160static int control_pid_good(Service *s) {
1161 assert(s);
1162
1163 return s->control_pid > 0;
1164}
1165
1166static int cgroup_good(Service *s) {
1167 int r;
1168
1169 assert(s);
1170
1171 if (s->valid_no_process)
1172 return -EAGAIN;
1173
1174 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->meta.cgroup_bondings)) < 0)
1175 return r;
1176
1177 return !r;
1178}
1179
034c6ed7
LP		 1180static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1181 int r;
1182 assert(s);
1183
1184 if (!success)
1185 s->failure = true;
1186
1187 if (allow_restart &&
1188 (s->restart == SERVICE_RESTART_ALWAYS ||
1189 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1190
acbb0225 1191 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1192 goto fail;
1193
1194 service_set_state(s, SERVICE_AUTO_RESTART);
1195 } else
1196 service_set_state(s, s->failure ? SERVICE_MAINTAINANCE : SERVICE_DEAD);
1197
1198 return;
1199
1200fail:
87f0e418 1201 log_warning("%s failed to run install restart timer: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1202 service_enter_dead(s, false, false);
1203}
1204
1205static void service_enter_signal(Service *s, ServiceState state, bool success);
1206
1207static void service_enter_stop_post(Service *s, bool success) {
1208 int r;
1209 assert(s);
1210
1211 if (!success)
1212 s->failure = true;
1213
5e94833f
LP		 1214 service_unwatch_control_pid(s);
1215
80876c20 1216 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1217 if ((r = service_spawn(s,
1218 s->control_command,
1219 true,
1220 false,
1221 !s->permissions_start_only,
1222 !s->root_directory_start_only,
1223 &s->control_pid)) < 0)
034c6ed7
LP		 1224 goto fail;
1225
d6ea93e3 1226
80876c20
LP		 1227 service_set_state(s, SERVICE_STOP_POST);
1228 } else
1229 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1230
1231 return;
1232
1233fail:
80876c20 1234 log_warning("%s failed to run stop-post executable: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1235 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1236}
1237
1238static void service_enter_signal(Service *s, ServiceState state, bool success) {
1239 int r;
1240 bool sent = false;
1241
1242 assert(s);
1243
1244 if (!success)
1245 s->failure = true;
1246
80876c20
LP		 1247 if (s->kill_mode != KILL_NONE) {
1248 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
034c6ed7 1249
50159e6a 1250 if (s->kill_mode == KILL_CONTROL_GROUP) {
034c6ed7 1251
50159e6a
LP		 1252 if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) {
1253 if (r != -EAGAIN && r != -ESRCH)
1254 goto fail;
1255 } else
034c6ed7
LP		 1256 sent = true;
1257 }
1258
50159e6a
LP		 1259 if (!sent) {
1260 r = 0;
80876c20 1261
50159e6a
LP		 1262 if (s->main_pid > 0) {
1263 if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
1264 r = -errno;
1265 else
1266 sent = true;
1267 }
1268
1269 if (s->control_pid > 0) {
1270 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
1271 r = -errno;
1272 else
1273 sent = true;
1274 }
1275
1276 if (r < 0)
1277 goto fail;
1278 }
d6ea93e3 1279 }
034c6ed7 1280
80876c20
LP		 1281 if (sent) {
1282 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1283 goto fail;
d6ea93e3 1284
80876c20
LP		 1285 service_set_state(s, state);
1286 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1287 service_enter_stop_post(s, true);
1288 else
034c6ed7
LP		 1289 service_enter_dead(s, true, true);
1290
1291 return;
1292
1293fail:
87f0e418 1294 log_warning("%s failed to kill processes: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7 1295
80876c20 1296 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1297 service_enter_stop_post(s, false);
1298 else
1299 service_enter_dead(s, false, true);
1300}
1301
1302static void service_enter_stop(Service *s, bool success) {
1303 int r;
1304 assert(s);
1305
1306 if (!success)
1307 s->failure = true;
1308
5e94833f
LP		 1309 service_unwatch_control_pid(s);
1310
80876c20 1311 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1312 if ((r = service_spawn(s,
1313 s->control_command,
1314 true,
1315 false,
1316 !s->permissions_start_only,
1317 !s->root_directory_start_only,
1318 &s->control_pid)) < 0)
034c6ed7
LP		 1319 goto fail;
1320
80876c20
LP		 1321 service_set_state(s, SERVICE_STOP);
1322 } else
034c6ed7
LP		 1323 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1324
1325 return;
1326
1327fail:
87f0e418 1328 log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1329 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1330}
1331
80876c20
LP		 1332static void service_enter_running(Service *s, bool success) {
1333 assert(s);
1334
1335 if (!success)
1336 s->failure = true;
1337
1338 if (main_pid_good(s) != 0 && cgroup_good(s) != 0)
1339 service_set_state(s, SERVICE_RUNNING);
1340 else if (s->valid_no_process)
1341 service_set_state(s, SERVICE_EXITED);
1342 else
1343 service_enter_stop(s, true);
1344}
1345
034c6ed7
LP		 1346static void service_enter_start_post(Service *s) {
1347 int r;
1348 assert(s);
1349
5e94833f
LP		 1350 service_unwatch_control_pid(s);
1351
80876c20 1352 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1353 if ((r = service_spawn(s,
1354 s->control_command,
1355 true,
1356 false,
1357 !s->permissions_start_only,
1358 !s->root_directory_start_only,
1359 &s->control_pid)) < 0)
034c6ed7
LP		 1360 goto fail;
1361
d6ea93e3 1362
80876c20
LP		 1363 service_set_state(s, SERVICE_START_POST);
1364 } else
1365 service_enter_running(s, true);
034c6ed7
LP		 1366
1367 return;
1368
1369fail:
87f0e418 1370 log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1371 service_enter_stop(s, false);
1372}
1373
1374static void service_enter_start(Service *s) {
1375 pid_t pid;
1376 int r;
1377
1378 assert(s);
1379
1380 assert(s->exec_command[SERVICE_EXEC_START]);
1381 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1382
80876c20
LP		 1383 if (s->type == SERVICE_FORKING)
1384 service_unwatch_control_pid(s);
1385 else
1386 service_unwatch_main_pid(s);
1387
81a2b7ce
LP		 1388 if ((r = service_spawn(s,
1389 s->exec_command[SERVICE_EXEC_START],
1390 s->type == SERVICE_FORKING,
1391 true,
1392 true,
1393 true,
1394 &pid)) < 0)
034c6ed7
LP		 1395 goto fail;
1396
1397 if (s->type == SERVICE_SIMPLE) {
1398 /* For simple services we immediately start
1399 * the START_POST binaries. */
1400
1401 s->main_pid = pid;
1402 s->main_pid_known = true;
80876c20 1403
034c6ed7
LP		 1404 service_enter_start_post(s);
1405
1406 } else if (s->type == SERVICE_FORKING) {
1407
1408 /* For forking services we wait until the start
1409 * process exited. */
1410
1411 s->control_pid = pid;
80876c20 1412
034c6ed7 1413 s->control_command = s->exec_command[SERVICE_EXEC_START];
80876c20
LP		 1414 service_set_state(s, SERVICE_START);
1415
7d55e835
LP		 1416 } else if (s->type == SERVICE_FINISH) {
1417
1418 /* For finishing services we wait until the start
1419 * process exited, too, but it is our main process. */
1420
1421 s->main_pid = pid;
5e94833f 1422 s->main_pid_known = true;
80876c20 1423
7d55e835 1424 s->control_command = s->exec_command[SERVICE_EXEC_START];
80876c20 1425 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1426 } else
1427 assert_not_reached("Unknown service type");
1428
1429 return;
1430
1431fail:
87f0e418 1432 log_warning("%s failed to run start exectuable: %s", unit_id(UNIT(s)), strerror(-r));
80876c20 1433 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1434}
1435
1436static void service_enter_start_pre(Service *s) {
1437 int r;
1438
1439 assert(s);
1440
5e94833f
LP		 1441 service_unwatch_control_pid(s);
1442
80876c20 1443 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1444 if ((r = service_spawn(s,
1445 s->control_command,
1446 true,
1447 false,
1448 !s->permissions_start_only,
1449 !s->root_directory_start_only,
1450 &s->control_pid)) < 0)
034c6ed7
LP		 1451 goto fail;
1452
80876c20
LP		 1453 service_set_state(s, SERVICE_START_PRE);
1454 } else
034c6ed7
LP		 1455 service_enter_start(s);
1456
1457 return;
1458
1459fail:
87f0e418 1460 log_warning("%s failed to run start-pre executable: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1461 service_enter_dead(s, false, true);
1462}
1463
1464static void service_enter_restart(Service *s) {
1465 int r;
1466 assert(s);
1467
9ea9a0c8
LP		 1468 service_enter_dead(s, true, false);
1469
87f0e418 1470 if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
034c6ed7
LP		 1471 goto fail;
1472
87f0e418 1473 log_debug("%s scheduled restart job.", unit_id(UNIT(s)));
034c6ed7
LP		 1474 return;
1475
1476fail:
1477
87f0e418 1478 log_warning("%s failed to schedule restart job: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1479 service_enter_dead(s, false, false);
1480}
1481
1482static void service_enter_reload(Service *s) {
1483 int r;
1484
1485 assert(s);
1486
5e94833f
LP		 1487 service_unwatch_control_pid(s);
1488
80876c20 1489 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 1490 if ((r = service_spawn(s,
1491 s->control_command,
1492 true,
1493 false,
1494 !s->permissions_start_only,
1495 !s->root_directory_start_only,
1496 &s->control_pid)) < 0)
034c6ed7
LP		 1497 goto fail;
1498
80876c20
LP		 1499 service_set_state(s, SERVICE_RELOAD);
1500 } else
1501 service_enter_running(s, true);
034c6ed7
LP		 1502
1503 return;
1504
1505fail:
87f0e418 1506 log_warning("%s failed to run reload executable: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7
LP		 1507 service_enter_stop(s, false);
1508}
1509
1510static void service_run_next(Service *s, bool success) {
1511 int r;
1512
1513 assert(s);
1514 assert(s->control_command);
1515 assert(s->control_command->command_next);
1516
1517 if (!success)
1518 s->failure = true;
1519
1520 s->control_command = s->control_command->command_next;
1521
5e94833f
LP		 1522 service_unwatch_control_pid(s);
1523
81a2b7ce
LP		 1524 if ((r = service_spawn(s,
1525 s->control_command,
1526 true,
1527 false,
1528 !s->permissions_start_only,
1529 !s->root_directory_start_only,
1530 &s->control_pid)) < 0)
034c6ed7
LP		 1531 goto fail;
1532
1533 return;
1534
1535fail:
87f0e418 1536 log_warning("%s failed to run spawn next executable: %s", unit_id(UNIT(s)), strerror(-r));
034c6ed7 1537
80876c20
LP		 1538 if (s->state == SERVICE_START_PRE)
1539 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1540 else if (s->state == SERVICE_STOP)
1541 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 1542 else if (s->state == SERVICE_STOP_POST)
1543 service_enter_dead(s, false, true);
1544 else
1545 service_enter_stop(s, false);
5cb5a6ff
LP		 1546}
1547
87f0e418
LP		 1548static int service_start(Unit *u) {
1549 Service *s = SERVICE(u);
5cb5a6ff
LP		 1550
1551 assert(s);
1552
034c6ed7
LP		 1553 /* We cannot fulfill this request right now, try again later
1554 * please! */
1555 if (s->state == SERVICE_STOP ||
1556 s->state == SERVICE_STOP_SIGTERM ||
1557 s->state == SERVICE_STOP_SIGKILL ||
1558 s->state == SERVICE_STOP_POST ||
1559 s->state == SERVICE_FINAL_SIGTERM ||
1560 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 1561 return -EAGAIN;
1562
034c6ed7
LP		 1563 /* Already on it! */
1564 if (s->state == SERVICE_START_PRE ||
1565 s->state == SERVICE_START ||
1566 s->state == SERVICE_START_POST)
1567 return 0;
1568
1569 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTAINANCE || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 1570
1e2e8133
LP		 1571 /* Make sure we don't enter a busy loop of some kind. */
1572 if (!ratelimit_test(&s->ratelimit)) {
1573 log_warning("%s start request repeated too quickly, refusing to start.", unit_id(u));
1574 return -EAGAIN;
1575 }
1576
034c6ed7
LP		 1577 s->failure = false;
1578 s->main_pid_known = false;
1579
1580 service_enter_start_pre(s);
1581 return 0;
5cb5a6ff
LP		 1582}
1583
87f0e418
LP		 1584static int service_stop(Unit *u) {
1585 Service *s = SERVICE(u);
5cb5a6ff
LP		 1586
1587 assert(s);
1588
e537352b 1589 /* Cannot do this now */
034c6ed7
LP		 1590 if (s->state == SERVICE_START_PRE ||
1591 s->state == SERVICE_START ||
1592 s->state == SERVICE_START_POST ||
1593 s->state == SERVICE_RELOAD)
1594 return -EAGAIN;
1595
e537352b
LP		 1596 /* Already on it */
1597 if (s->state == SERVICE_STOP ||
1598 s->state == SERVICE_STOP_SIGTERM ||
1599 s->state == SERVICE_STOP_SIGKILL ||
1600 s->state == SERVICE_STOP_POST ||
1601 s->state == SERVICE_FINAL_SIGTERM ||
1602 s->state == SERVICE_FINAL_SIGKILL)
1603 return 0;
1604
034c6ed7
LP		 1605 if (s->state == SERVICE_AUTO_RESTART) {
1606 service_set_state(s, SERVICE_DEAD);
1607 return 0;
1608 }
1609
80876c20 1610 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
5cb5a6ff 1611
034c6ed7 1612 service_enter_stop(s, true);
5cb5a6ff
LP		 1613 return 0;
1614}
1615
87f0e418
LP		 1616static int service_reload(Unit *u) {
1617 Service *s = SERVICE(u);
034c6ed7
LP		 1618
1619 assert(s);
1620
80876c20 1621 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 1622
1623 service_enter_reload(s);
5cb5a6ff
LP		 1624 return 0;
1625}
1626
87f0e418
LP		 1627static bool service_can_reload(Unit *u) {
1628 Service *s = SERVICE(u);
034c6ed7
LP		 1629
1630 assert(s);
1631
1632 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1633}
1634
87f0e418
LP		 1635static UnitActiveState service_active_state(Unit *u) {
1636 assert(u);
5cb5a6ff 1637
acbb0225 1638 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 1639}
1640
10a94420
LP		 1641static const char *service_sub_state_to_string(Unit *u) {
1642 assert(u);
1643
1644 return service_state_to_string(SERVICE(u)->state);
1645}
1646
87f0e418
LP		 1647static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
1648 Service *s = SERVICE(u);
034c6ed7 1649 bool success;
5cb5a6ff
LP		 1650
1651 assert(s);
034c6ed7
LP		 1652 assert(pid >= 0);
1653
bd982a8b 1654 success = code == CLD_EXITED && status == 0;
034c6ed7
LP		 1655 s->failure = s->failure || !success;
1656
1657 if (s->main_pid == pid) {
1658
1659 exec_status_fill(&s->main_exec_status, pid, code, status);
1660 s->main_pid = 0;
1661
7d55e835 1662 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_FINISH) {
034c6ed7
LP		 1663 assert(s->exec_command[SERVICE_EXEC_START]);
1664 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
1665 }
1666
50159e6a 1667 log_debug("%s: main process exited, code=%s, status=%i", unit_id(u), sigchld_code_to_string(code), status);
034c6ed7
LP		 1668
1669 /* The service exited, so the service is officially
1670 * gone. */
1671
1672 switch (s->state) {
1673
1674 case SERVICE_START_POST:
1675 case SERVICE_RELOAD:
1676 case SERVICE_STOP:
1677 /* Need to wait until the operation is
1678 * done */
1679 break;
1680
7d55e835
LP		 1681 case SERVICE_START:
1682 assert(s->type == SERVICE_FINISH);
1683
1684 /* This was our main goal, so let's go on */
1685 if (success)
1686 service_enter_start_post(s);
1687 else
80876c20 1688 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
7d55e835
LP		 1689 break;
1690
034c6ed7 1691 case SERVICE_RUNNING:
80876c20 1692 service_enter_running(s, success);
034c6ed7
LP		 1693 break;
1694
1695 case SERVICE_STOP_SIGTERM:
1696 case SERVICE_STOP_SIGKILL:
1697
1698 if (!control_pid_good(s))
1699 service_enter_stop_post(s, success);
5cb5a6ff 1700
034c6ed7
LP		 1701 /* If there is still a control process, wait for that first */
1702 break;
5cb5a6ff 1703
034c6ed7
LP		 1704 default:
1705 assert_not_reached("Uh, main process died at wrong time.");
1706 }
5cb5a6ff 1707
034c6ed7
LP		 1708 } else if (s->control_pid == pid) {
1709 assert(s->control_command);
1710
1711 exec_status_fill(&s->control_command->exec_status, pid, code, status);
1712 s->control_pid = 0;
1713
94f04347 1714 log_debug("%s: control process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(code), status);
034c6ed7
LP		 1715
1716 /* If we are shutting things down anyway we
1717 * don't care about failing commands. */
1718
80876c20 1719 if (s->control_command->command_next && success) {
034c6ed7
LP		 1720
1721 /* There is another command to *
1722 * execute, so let's do that. */
1723
80876c20 1724 log_debug("%s running next command for state %s", unit_id(u), service_state_to_string(s->state));
034c6ed7
LP		 1725 service_run_next(s, success);
1726
80876c20 1727 } else {
034c6ed7
LP		 1728 /* No further commands for this step, so let's
1729 * figure out what to do next */
1730
94f04347 1731 log_debug("%s got final SIGCHLD for state %s", unit_id(u), service_state_to_string(s->state));
bd982a8b 1732
034c6ed7
LP		 1733 switch (s->state) {
1734
1735 case SERVICE_START_PRE:
1736 if (success)
1737 service_enter_start(s);
1738 else
80876c20 1739 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1740 break;
1741
1742 case SERVICE_START:
1743 assert(s->type == SERVICE_FORKING);
1744
1745 /* Let's try to load the pid
1746 * file here if we can. We
1747 * ignore the return value,
1748 * since the PID file might
1749 * actually be created by a
1750 * START_POST script */
1751
1752 if (success) {
1753 if (s->pid_file)
1754 service_load_pid_file(s);
1755
1756 service_enter_start_post(s);
1757 } else
80876c20 1758 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1759
1760 break;
1761
1762 case SERVICE_START_POST:
1763 if (success && s->pid_file && !s->main_pid_known) {
1764 int r;
1765
1766 /* Hmm, let's see if we can
1767 * load the pid now after the
1768 * start-post scripts got
1769 * executed. */
1770
1771 if ((r = service_load_pid_file(s)) < 0)
87f0e418 1772 log_warning("%s: failed to load PID file %s: %s", unit_id(UNIT(s)), s->pid_file, strerror(-r));
034c6ed7
LP		 1773 }
1774
1775 /* Fall through */
1776
1777 case SERVICE_RELOAD:
80876c20
LP		 1778 if (success)
1779 service_enter_running(s, true);
1780 else
034c6ed7
LP		 1781 service_enter_stop(s, false);
1782
1783 break;
1784
1785 case SERVICE_STOP:
80876c20 1786 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 1787 break;
1788
1789 case SERVICE_STOP_SIGTERM:
1790 case SERVICE_STOP_SIGKILL:
1791 if (main_pid_good(s) <= 0)
1792 service_enter_stop_post(s, success);
1793
1794 /* If there is still a service
1795 * process around, wait until
1796 * that one quit, too */
1797 break;
1798
1799 case SERVICE_STOP_POST:
1800 case SERVICE_FINAL_SIGTERM:
1801 case SERVICE_FINAL_SIGKILL:
1802 service_enter_dead(s, success, true);
1803 break;
1804
1805 default:
1806 assert_not_reached("Uh, control process died at wrong time.");
1807 }
1808 }
1809 } else
1810 assert_not_reached("Got SIGCHLD for unkown PID");
1811}
1812
acbb0225 1813static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 1814 Service *s = SERVICE(u);
034c6ed7
LP		 1815
1816 assert(s);
1817 assert(elapsed == 1);
1818
acbb0225 1819 assert(w == &s->timer_watch);
034c6ed7
LP		 1820
1821 switch (s->state) {
1822
1823 case SERVICE_START_PRE:
1824 case SERVICE_START:
80876c20
LP		 1825 log_warning("%s operation timed out. Terminating.", unit_id(u));
1826 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1827 break;
1828
034c6ed7
LP		 1829 case SERVICE_START_POST:
1830 case SERVICE_RELOAD:
87f0e418 1831 log_warning("%s operation timed out. Stopping.", unit_id(u));
034c6ed7
LP		 1832 service_enter_stop(s, false);
1833 break;
1834
1835 case SERVICE_STOP:
87f0e418 1836 log_warning("%s stopping timed out. Terminating.", unit_id(u));
034c6ed7
LP		 1837 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1838 break;
1839
1840 case SERVICE_STOP_SIGTERM:
87f0e418 1841 log_warning("%s stopping timed out. Killing.", unit_id(u));
034c6ed7
LP		 1842 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
1843 break;
1844
1845 case SERVICE_STOP_SIGKILL:
1846 /* Uh, wie sent a SIGKILL and it is still not gone?
1847 * Must be something we cannot kill, so let's just be
1848 * weirded out and continue */
1849
87f0e418 1850 log_warning("%s still around after SIGKILL. Ignoring.", unit_id(u));
034c6ed7
LP		 1851 service_enter_stop_post(s, false);
1852 break;
1853
1854 case SERVICE_STOP_POST:
87f0e418 1855 log_warning("%s stopping timed out (2). Terminating.", unit_id(u));
034c6ed7
LP		 1856 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1857 break;
1858
1859 case SERVICE_FINAL_SIGTERM:
87f0e418 1860 log_warning("%s stopping timed out (2). Killing.", unit_id(u));
034c6ed7
LP		 1861 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
1862 break;
1863
1864 case SERVICE_FINAL_SIGKILL:
87f0e418 1865 log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", unit_id(u));
034c6ed7
LP		 1866 service_enter_dead(s, false, true);
1867 break;
1868
1869 case SERVICE_AUTO_RESTART:
87f0e418 1870 log_debug("%s holdoff time over, scheduling restart.", unit_id(u));
034c6ed7
LP		 1871 service_enter_restart(s);
1872 break;
1873
1874 default:
1875 assert_not_reached("Timeout at wrong time.");
1876 }
5cb5a6ff
LP		 1877}
1878
8e274523
LP		 1879static void service_cgroup_notify_event(Unit *u) {
1880 Service *s = SERVICE(u);
1881
1882 assert(u);
1883
1884 log_debug("%s: cgroup is empty", unit_id(u));
1885
1886 switch (s->state) {
1887
1888 /* Waiting for SIGCHLD is usually more interesting,
1889 * because it includes return codes/signals. Which is
1890 * why we ignore the cgroup events for most cases,
1891 * except when we don't know pid which to expect the
1892 * SIGCHLD for. */
1893
1894 case SERVICE_RUNNING:
80876c20 1895 service_enter_running(s, true);
8e274523
LP		 1896 break;
1897
1898 default:
1899 ;
1900 }
1901}
1902
2c4104f0 1903static int service_enumerate(Manager *m) {
2c4104f0
LP		 1904 char **p;
1905 unsigned i;
1906 DIR *d = NULL;
1907 char *path = NULL, *fpath = NULL, *name = NULL;
1908 int r;
1909
1910 assert(m);
1911
5e177ece 1912 STRV_FOREACH(p, m->sysvrcnd_path)
23a177ef 1913 for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) {
2c4104f0
LP		 1914 struct dirent *de;
1915
1916 free(path);
1917 path = NULL;
23a177ef 1918 if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) {
2c4104f0
LP		 1919 r = -ENOMEM;
1920 goto finish;
1921 }
1922
1923 if (d)
1924 closedir(d);
1925
1926 if (!(d = opendir(path))) {
1927 if (errno != ENOENT)
1928 log_warning("opendir() failed on %s: %s", path, strerror(errno));
1929
1930 continue;
1931 }
1932
1933 while ((de = readdir(d))) {
1934 Unit *runlevel, *service;
1935
1936 if (ignore_file(de->d_name))
1937 continue;
1938
1939 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
1940 continue;
1941
1942 if (strlen(de->d_name) < 4)
1943 continue;
1944
1945 free(fpath);
1946 fpath = NULL;
23a177ef 1947 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i], de->d_name) < 0) {
2c4104f0
LP		 1948 r = -ENOMEM;
1949 goto finish;
1950 }
1951
1952 if (access(fpath, X_OK) < 0) {
1953
1954 if (errno != ENOENT)
1955 log_warning("access() failed on %s: %s", fpath, strerror(errno));
1956
1957 continue;
1958 }
1959
1960 free(name);
1961 name = NULL;
1962 if (asprintf(&name, "%s.service", de->d_name+3) < 0) {
1963 r = -ENOMEM;
1964 goto finish;
1965 }
1966
1967 if ((r = manager_load_unit(m, name, &service)) < 0)
1968 goto finish;
1969
23a177ef 1970 if ((r = manager_load_unit(m, rcnd_table[i+1], &runlevel)) < 0)
2c4104f0
LP		 1971 goto finish;
1972
1973 if (de->d_name[0] == 'S') {
1974 if ((r = unit_add_dependency(runlevel, UNIT_WANTS, service)) < 0)
1975 goto finish;
1976
1977 if ((r = unit_add_dependency(runlevel, UNIT_AFTER, service)) < 0)
1978 goto finish;
23a177ef
LP		 1979
1980 } else if (de->d_name[0] == 'K' &&
1981 (streq(rcnd_table[i+1], SPECIAL_RUNLEVEL0_TARGET) ||
1982 streq(rcnd_table[i+1], SPECIAL_RUNLEVEL6_TARGET))) {
1983
1984 /* We honour K links only for
1985 * halt/reboot. For the normal
1986 * runlevels we assume the
1987 * stop jobs will be
1988 * implicitly added by the
1989 * core logic. */
1990
2c4104f0
LP		 1991 if ((r = unit_add_dependency(runlevel, UNIT_CONFLICTS, service)) < 0)
1992 goto finish;
1993
1994 if ((r = unit_add_dependency(runlevel, UNIT_BEFORE, service)) < 0)
1995 goto finish;
1996 }
1997 }
1998 }
1999
2000 r = 0;
2001
2002finish:
2003 free(path);
2004 free(fpath);
2005 free(name);
2006 closedir(d);
2007
2008 return r;
2009}
2010
94f04347
LP		 2011static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2012 [SERVICE_DEAD] = "dead",
2013 [SERVICE_START_PRE] = "start-pre",
2014 [SERVICE_START] = "start",
2015 [SERVICE_START_POST] = "start-post",
2016 [SERVICE_RUNNING] = "running",
80876c20 2017 [SERVICE_EXITED] = "exited",
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LP		 2018 [SERVICE_RELOAD] = "reload",
2019 [SERVICE_STOP] = "stop",
2020 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2021 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2022 [SERVICE_STOP_POST] = "stop-post",
2023 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2024 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
2025 [SERVICE_MAINTAINANCE] = "maintainance",
2026 [SERVICE_AUTO_RESTART] = "auto-restart",
2027};
2028
2029DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2030
2031static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2032 [SERVICE_ONCE] = "once",
2033 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 2034 [SERVICE_RESTART_ALWAYS] = "restart-always",
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LP		 2035};
2036
2037DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2038
2039static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
2040 [SERVICE_FORKING] = "forking",
2041 [SERVICE_SIMPLE] = "simple",
2042 [SERVICE_FINISH] = "finish"
2043};
2044
2045DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2046
e537352b 2047static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
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LP		 2048 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2049 [SERVICE_EXEC_START] = "ExecStart",
2050 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2051 [SERVICE_EXEC_RELOAD] = "ExecReload",
2052 [SERVICE_EXEC_STOP] = "ExecStop",
2053 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2054};
2055
2056DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2057
87f0e418 2058const UnitVTable service_vtable = {
5cb5a6ff
LP		 2059 .suffix = ".service",
2060
034c6ed7 2061 .init = service_init,
e537352b 2062 .load = service_load,
034c6ed7
LP		 2063 .done = service_done,
2064
5cb5a6ff
LP		 2065 .dump = service_dump,
2066
2067 .start = service_start,
2068 .stop = service_stop,
2069 .reload = service_reload,
2070
034c6ed7
LP		 2071 .can_reload = service_can_reload,
2072
5cb5a6ff 2073 .active_state = service_active_state,
10a94420 2074 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 2075
034c6ed7
LP		 2076 .sigchld_event = service_sigchld_event,
2077 .timer_event = service_timer_event,
2c4104f0 2078
8e274523
LP		 2079 .cgroup_notify_empty = service_cgroup_notify_event,
2080
2c4104f0 2081 .enumerate = service_enumerate
5cb5a6ff 2082};
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