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