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