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[thirdparty/systemd.git] / src / service.c
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5cb5a6ff
LP		 1/*-*- Mode: C; c-basic-offset: 8 -*-*/
2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
2c4104f0
LP		 36
37#define COMMENTS "#;\n"
38#define NEWLINES "\n\r"
034c6ed7 39
09cd1ab1
LP		 40typedef enum RunlevelType {
41 RUNLEVEL_UP,
42 RUNLEVEL_DOWN,
fc5df99e 43 RUNLEVEL_SYSINIT
09cd1ab1
LP		 44} RunlevelType;
45
46static const struct {
47 const char *path;
48 const char *target;
49 const RunlevelType type;
50} rcnd_table[] = {
fbe9f3a9 51 /* Standard SysV runlevels */
514f4ef5
LP		 52 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
53 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 54 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
55 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
56 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
57 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
514f4ef5 58 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN },
fbe9f3a9 59
cfe243e3 60 /* SUSE style boot.d */
fc5df99e 61 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
fbe9f3a9
LP		 62
63 /* Debian style rcS.d */
fc5df99e 64 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
23a177ef
LP		 65};
66
09cd1ab1 67#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 68/* #define RUNLEVELS_DOWN "06" */
69/* #define RUNLEVELS_BOOT "bBsS" */
09cd1ab1 70
acbb0225 71static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 72 [SERVICE_DEAD] = UNIT_INACTIVE,
73 [SERVICE_START_PRE] = UNIT_ACTIVATING,
74 [SERVICE_START] = UNIT_ACTIVATING,
75 [SERVICE_START_POST] = UNIT_ACTIVATING,
76 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 77 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 78 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 79 [SERVICE_STOP] = UNIT_DEACTIVATING,
80 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
81 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
82 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
83 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
84 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
032ff4af 85 [SERVICE_MAINTENANCE] = UNIT_MAINTENANCE,
6124958c 86 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 87};
5cb5a6ff 88
a16e1123
LP		 89static void service_init(Unit *u) {
90 Service *s = SERVICE(u);
91
92 assert(u);
93 assert(u->meta.load_state == UNIT_STUB);
94
95 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
96 s->restart_usec = DEFAULT_RESTART_USEC;
97 s->timer_watch.type = WATCH_INVALID;
98 s->sysv_start_priority = -1;
99 s->socket_fd = -1;
100
101 exec_context_init(&s->exec_context);
102
103 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
104
105 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
106}
107
5e94833f
LP		 108static void service_unwatch_control_pid(Service *s) {
109 assert(s);
110
111 if (s->control_pid <= 0)
112 return;
113
114 unit_unwatch_pid(UNIT(s), s->control_pid);
115 s->control_pid = 0;
116}
117
118static void service_unwatch_main_pid(Service *s) {
119 assert(s);
120
121 if (s->main_pid <= 0)
122 return;
123
124 unit_unwatch_pid(UNIT(s), s->main_pid);
125 s->main_pid = 0;
126}
127
5925dd3c 128static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 129 pid_t ppid;
130
5925dd3c
LP		 131 assert(s);
132
133 if (pid <= 1)
134 return -EINVAL;
135
136 if (pid == getpid())
137 return -EINVAL;
138
e55224ca
LP		 139 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
140 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
141 s->meta.id, (unsigned long) pid);
142
5925dd3c
LP		 143 s->main_pid = pid;
144 s->main_pid_known = true;
145
b58b4116
LP		 146 exec_status_start(&s->main_exec_status, pid);
147
5925dd3c
LP		 148 return 0;
149}
150
4f2d528d
LP		 151static void service_close_socket_fd(Service *s) {
152 assert(s);
153
154 if (s->socket_fd < 0)
155 return;
156
157 close_nointr_nofail(s->socket_fd);
158 s->socket_fd = -1;
159}
160
6cf6bbc2
LP		 161static void service_connection_unref(Service *s) {
162 assert(s);
163
164 if (!s->socket)
165 return;
166
167 socket_connection_unref(s->socket);
168 s->socket = NULL;
169}
170
87f0e418
LP		 171static void service_done(Unit *u) {
172 Service *s = SERVICE(u);
44d8db9e
LP		 173
174 assert(s);
175
176 free(s->pid_file);
177 s->pid_file = NULL;
178
2c4104f0
LP		 179 free(s->sysv_path);
180 s->sysv_path = NULL;
181
8309400a
LP		 182 free(s->sysv_runlevels);
183 s->sysv_runlevels = NULL;
184
8c47c732
LP		 185 free(s->status_text);
186 s->status_text = NULL;
187
44d8db9e 188 exec_context_done(&s->exec_context);
e537352b 189 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 190 s->control_command = NULL;
191
192 /* This will leak a process, but at least no memory or any of
193 * our resources */
5e94833f
LP		 194 service_unwatch_main_pid(s);
195 service_unwatch_control_pid(s);
44d8db9e 196
05e343b7
LP		 197 if (s->bus_name) {
198 unit_unwatch_bus_name(UNIT(u), s->bus_name);
199 free(s->bus_name);
200 s->bus_name = NULL;
201 }
202
4f2d528d 203 service_close_socket_fd(s);
6cf6bbc2 204 service_connection_unref(s);
4f2d528d 205
acbb0225 206 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 207}
208
b7ccee3c
LP		 209static char *sysv_translate_name(const char *name) {
210 char *r;
211
212 if (!(r = new(char, strlen(name) + sizeof(".service"))))
213 return NULL;
214
215 if (startswith(name, "boot."))
216 /* Drop SuSE-style boot. prefix */
217 strcpy(stpcpy(r, name + 5), ".service");
218 else if (endswith(name, ".sh"))
219 /* Drop Debian-style .sh suffix */
220 strcpy(stpcpy(r, name) - 3, ".service");
221 else
222 /* Normal init scripts */
223 strcpy(stpcpy(r, name), ".service");
224
225 return r;
226}
227
228static int sysv_translate_facility(const char *name, char **_r) {
2c4104f0
LP		 229
230 static const char * const table[] = {
6464aa08 231 /* LSB defined facilities */
2c4104f0
LP		 232 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
233 "$network", SPECIAL_NETWORK_TARGET,
234 "$named", SPECIAL_NSS_LOOKUP_TARGET,
235 "$portmap", SPECIAL_RPCBIND_TARGET,
236 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
237 "$syslog", SPECIAL_SYSLOG_TARGET,
6464aa08
LP		 238 "$time", SPECIAL_RTC_SET_TARGET,
239
240 /* Debian extensions */
241 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
242 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
1e287fe3 243 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
2c4104f0
LP		 244 };
245
246 unsigned i;
247 char *r;
248
249 for (i = 0; i < ELEMENTSOF(table); i += 2)
250 if (streq(table[i], name)) {
251 if (!(r = strdup(table[i+1])))
252 return -ENOMEM;
253
254 goto finish;
255 }
256
257 if (*name == '$')
258 return 0;
259
b7ccee3c 260 if (!(r = sysv_translate_name(name)))
2c4104f0
LP		 261 return -ENOMEM;
262
263finish:
264
265 if (_r)
266 *_r = r;
267
268 return 1;
269}
270
56d748b4 271static int sysv_fix_order(Service *s) {
2c4104f0
LP		 272 Meta *other;
273 int r;
274
275 assert(s);
276
277 if (s->sysv_start_priority < 0)
278 return 0;
279
23a177ef
LP		 280 /* For each pair of services where at least one lacks a LSB
281 * header, we use the start priority value to order things. */
2c4104f0 282
4cd1fbcc 283 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 284 Service *t;
285 UnitDependency d;
286
287 t = (Service*) other;
288
289 if (s == t)
290 continue;
291
292 if (t->sysv_start_priority < 0)
293 continue;
294
51a1a79d
LP		 295 /* If both units have modern headers we don't care
296 * about the priorities */
297 if ((!s->sysv_path || s->sysv_has_lsb) &&
298 (!t->sysv_path || t->sysv_has_lsb))
23a177ef
LP		 299 continue;
300
2c4104f0
LP		 301 if (t->sysv_start_priority < s->sysv_start_priority)
302 d = UNIT_AFTER;
303 else if (t->sysv_start_priority > s->sysv_start_priority)
304 d = UNIT_BEFORE;
305 else
306 continue;
307
308 /* FIXME: Maybe we should compare the name here lexicographically? */
309
701cc384 310 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 311 return r;
312 }
313
314 return 0;
315}
316
317static ExecCommand *exec_command_new(const char *path, const char *arg1) {
318 ExecCommand *c;
319
320 if (!(c = new0(ExecCommand, 1)))
321 return NULL;
322
323 if (!(c->path = strdup(path))) {
324 free(c);
325 return NULL;
326 }
327
328 if (!(c->argv = strv_new(path, arg1, NULL))) {
329 free(c->path);
330 free(c);
331 return NULL;
332 }
333
334 return c;
335}
336
337static int sysv_exec_commands(Service *s) {
338 ExecCommand *c;
339
340 assert(s);
341 assert(s->sysv_path);
342
343 if (!(c = exec_command_new(s->sysv_path, "start")))
344 return -ENOMEM;
345 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
346
347 if (!(c = exec_command_new(s->sysv_path, "stop")))
348 return -ENOMEM;
349 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
350
351 if (!(c = exec_command_new(s->sysv_path, "reload")))
352 return -ENOMEM;
353 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
354
355 return 0;
356}
357
e537352b 358static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 359 FILE *f;
360 Unit *u;
361 unsigned line = 0;
362 int r;
363 enum {
364 NORMAL,
365 DESCRIPTION,
366 LSB,
367 LSB_DESCRIPTION
368 } state = NORMAL;
23a177ef
LP		 369
370 assert(s);
371 assert(path);
2c4104f0
LP		 372
373 u = UNIT(s);
374
375 if (!(f = fopen(path, "re"))) {
376 r = errno == ENOENT ? 0 : -errno;
377 goto finish;
378 }
379
2c4104f0
LP		 380 free(s->sysv_path);
381 if (!(s->sysv_path = strdup(path))) {
382 r = -ENOMEM;
383 goto finish;
384 }
385
386 while (!feof(f)) {
387 char l[LINE_MAX], *t;
388
389 if (!fgets(l, sizeof(l), f)) {
390 if (feof(f))
391 break;
392
393 r = -errno;
394 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
395 goto finish;
396 }
397
398 line++;
399
400 t = strstrip(l);
401 if (*t != '#')
402 continue;
403
404 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
405 state = LSB;
23a177ef 406 s->sysv_has_lsb = true;
2c4104f0
LP		 407 continue;
408 }
409
410 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
411 state = NORMAL;
412 continue;
413 }
414
415 t++;
416 t += strspn(t, WHITESPACE);
417
418 if (state == NORMAL) {
419
420 /* Try to parse Red Hat style chkconfig headers */
421
c2b35af6 422 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 423 int start_priority;
8309400a 424 char runlevels[16], *k;
2c4104f0
LP		 425
426 state = NORMAL;
427
8309400a
LP		 428 if (sscanf(t+10, "%15s %i %*i",
429 runlevels,
430 &start_priority) != 2) {
2c4104f0
LP		 431
432 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
433 continue;
434 }
435
fbe9f3a9
LP		 436 /* A start priority gathered from the
437 * symlink farms is preferred over the
438 * data from the LSB header. */
8309400a 439 if (start_priority < 0 || start_priority > 99)
2c4104f0 440 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 441 else if (s->sysv_start_priority < 0)
8309400a
LP		 442 s->sysv_start_priority = start_priority;
443
444 char_array_0(runlevels);
445 k = delete_chars(runlevels, WHITESPACE "-");
446
447 if (k[0]) {
448 char *d;
449
450 if (!(d = strdup(k))) {
451 r = -ENOMEM;
452 goto finish;
453 }
454
455 free(s->sysv_runlevels);
456 s->sysv_runlevels = d;
2c4104f0
LP		 457 }
458
ed4c1cc6
LP		 459 } else if (startswith_no_case(t, "description:") &&
460 !u->meta.description) {
2c4104f0
LP		 461
462 size_t k = strlen(t);
463 char *d;
464
465 if (t[k-1] == '\\') {
466 state = DESCRIPTION;
467 t[k-1] = 0;
468 }
469
470 if (!(d = strdup(strstrip(t+12)))) {
471 r = -ENOMEM;
472 goto finish;
473 }
474
475 free(u->meta.description);
476 u->meta.description = d;
477
c2b35af6 478 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 479
480 char *fn;
481
482 state = NORMAL;
483
484 fn = strstrip(t+8);
485 if (!path_is_absolute(fn)) {
486 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
487 continue;
488 }
489
490 if (!(fn = strdup(fn))) {
491 r = -ENOMEM;
492 goto finish;
493 }
494
495 free(s->pid_file);
496 s->pid_file = fn;
497 }
498
499 } else if (state == DESCRIPTION) {
500
501 /* Try to parse Red Hat style description
502 * continuation */
503
504 size_t k = strlen(t);
505 char *d;
506
507 if (t[k-1] == '\\')
508 t[k-1] = 0;
509 else
510 state = NORMAL;
511
512 assert(u->meta.description);
513 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
514 r = -ENOMEM;
515 goto finish;
516 }
517
518 free(u->meta.description);
519 u->meta.description = d;
520
521 } else if (state == LSB || state == LSB_DESCRIPTION) {
522
c2b35af6 523 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 524 char *i, *w;
525 size_t z;
526
527 state = LSB;
528
529 FOREACH_WORD(w, z, t+9, i) {
530 char *n, *m;
531
532 if (!(n = strndup(w, z))) {
533 r = -ENOMEM;
534 goto finish;
535 }
536
b7ccee3c 537 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 538 free(n);
539
540 if (r < 0)
541 goto finish;
542
543 if (r == 0)
544 continue;
545
bd77d0fc
LP		 546 if (unit_name_to_type(m) == UNIT_SERVICE)
547 r = unit_add_name(u, m);
2c966c03
LP		 548 else
549 r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_REQUIRES, m, NULL, true);
bd77d0fc 550
2c4104f0
LP		 551 free(m);
552
553 if (r < 0)
554 goto finish;
555 }
556
c2b35af6
LP		 557 } else if (startswith_no_case(t, "Required-Start:") ||
558 startswith_no_case(t, "Should-Start:") ||
559 startswith_no_case(t, "X-Start-Before:") ||
560 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 561 char *i, *w;
562 size_t z;
563
564 state = LSB;
565
566 FOREACH_WORD(w, z, strchr(t, ':')+1, i) {
567 char *n, *m;
568
569 if (!(n = strndup(w, z))) {
570 r = -ENOMEM;
571 goto finish;
572 }
573
b7ccee3c 574 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 575 free(n);
576
577 if (r < 0)
578 goto finish;
579
580 if (r == 0)
581 continue;
582
c2b35af6 583 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 584 free(m);
585
586 if (r < 0)
587 goto finish;
588 }
c2b35af6 589 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 590 char *k, *d;
591
592 state = LSB;
593
594 k = delete_chars(t+14, WHITESPACE "-");
595
596 if (k[0] != 0) {
597 if (!(d = strdup(k))) {
598 r = -ENOMEM;
599 goto finish;
600 }
601
602 free(s->sysv_runlevels);
603 s->sysv_runlevels = d;
604 }
2c4104f0 605
ed4c1cc6
LP		 606 } else if (startswith_no_case(t, "Description:") &&
607 !u->meta.description) {
2c4104f0
LP		 608 char *d;
609
ed4c1cc6
LP		 610 /* We use the long description only if
611 * no short description is set. */
612
2c4104f0
LP		 613 state = LSB_DESCRIPTION;
614
615 if (!(d = strdup(strstrip(t+12)))) {
616 r = -ENOMEM;
617 goto finish;
618 }
619
620 free(u->meta.description);
621 u->meta.description = d;
622
ed4c1cc6 623 } else if (startswith_no_case(t, "Short-Description:")) {
2c4104f0
LP		 624 char *d;
625
2c4104f0
LP		 626 state = LSB;
627
628 if (!(d = strdup(strstrip(t+18)))) {
629 r = -ENOMEM;
630 goto finish;
631 }
632
2c4104f0
LP		 633 u->meta.description = d;
634
723c83fd
LP		 635 } else if (startswith_no_case(t, "X-Interactive:")) {
636 int b;
637
638 if ((b = parse_boolean(strstrip(t+14))) < 0) {
639 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
640 continue;
641 }
642
643 if (b)
644 s->exec_context.std_input = EXEC_INPUT_TTY;
645 else
646 s->exec_context.std_input = EXEC_INPUT_NULL;
647
2c4104f0
LP		 648 } else if (state == LSB_DESCRIPTION) {
649
650 if (startswith(l, "#\t") || startswith(l, "# ")) {
651 char *d;
652
653 assert(u->meta.description);
654 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
655 r = -ENOMEM;
656 goto finish;
657 }
658
659 free(u->meta.description);
660 u->meta.description = d;
661 } else
662 state = LSB;
663 }
664 }
665 }
666
2c4104f0
LP		 667 if ((r = sysv_exec_commands(s)) < 0)
668 goto finish;
669
a40eb732 670 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 671 /* If there a runlevels configured for this service
672 * but none of the standard ones, then we assume this
673 * is some special kind of service (which might be
674 * needed for early boot) and don't create any links
675 * to it. */
676
a40eb732 677 s->meta.default_dependencies = false;
09cd1ab1 678
09cd1ab1
LP		 679 /* Don't timeout special services during boot (like fsck) */
680 s->timeout_usec = 0;
a40eb732 681 }
0fd030be 682
80876c20 683 /* Special setting for all SysV services */
1f48cf56 684 s->type = SERVICE_FORKING;
80876c20 685 s->valid_no_process = true;
b29a8e58 686 s->kill_mode = KILL_PROCESS_GROUP;
1f48cf56 687 s->restart = SERVICE_ONCE;
acb591e4 688 s->exec_context.std_output = EXEC_OUTPUT_TTY;
80876c20 689
e537352b 690 u->meta.load_state = UNIT_LOADED;
23a177ef 691 r = 0;
2c4104f0
LP		 692
693finish:
694
695 if (f)
696 fclose(f);
697
698 return r;
699}
700
e537352b 701static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 702 char **p;
703
704 assert(s);
705 assert(name);
706
d017c6ca
LP		 707 /* For SysV services we strip the boot. or .sh
708 * prefixes/suffixes. */
709 if (startswith(name, "boot.") ||
710 endswith(name, ".sh.service"))
711 return -ENOENT;
712
4cd1fbcc 713 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 714 char *path;
715 int r;
716
717 if (asprintf(&path, "%s/%s", *p, name) < 0)
718 return -ENOMEM;
719
720 assert(endswith(path, ".service"));
721 path[strlen(path)-8] = 0;
722
e537352b 723 r = service_load_sysv_path(s, path);
fbe9f3a9 724
4cd1fbcc 725 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 726 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 727 strcat(path, ".sh");
728 r = service_load_sysv_path(s, path);
729 }
730
2c4104f0
LP		 731 free(path);
732
4cd1fbcc 733 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 734 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 735
736 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
737 return -ENOMEM;
738
739 path[strlen(path)-8] = 0;
740 r = service_load_sysv_path(s, path);
741 free(path);
742 }
743
23a177ef 744 if (r < 0)
2c4104f0 745 return r;
23a177ef 746
4cd1fbcc 747 if ((s->meta.load_state != UNIT_STUB))
23a177ef 748 break;
2c4104f0
LP		 749 }
750
751 return 0;
752}
753
e537352b 754static int service_load_sysv(Service *s) {
2c4104f0
LP		 755 const char *t;
756 Iterator i;
757 int r;
758
5cb5a6ff
LP		 759 assert(s);
760
761 /* Load service data from SysV init scripts, preferably with
762 * LSB headers ... */
763
4cd1fbcc 764 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 765 return 0;
766
4cd1fbcc 767 if ((t = s->meta.id))
e537352b 768 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 769 return r;
770
4cd1fbcc
LP		 771 if (s->meta.load_state == UNIT_STUB)
772 SET_FOREACH(t, s->meta.names, i) {
773 if (t == s->meta.id)
e537352b
LP		 774 continue;
775
776 if ((r == service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 777 return r;
778
4cd1fbcc 779 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 780 break;
781 }
2c4104f0
LP		 782
783 return 0;
5cb5a6ff
LP		 784}
785
05e343b7
LP		 786static int service_add_bus_name(Service *s) {
787 char *n;
788 int r;
789
790 assert(s);
791 assert(s->bus_name);
792
793 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
794 return 0;
795
796 r = unit_merge_by_name(UNIT(s), n);
797 free(n);
798
799 return r;
800}
801
243b1432
LP		 802static int service_verify(Service *s) {
803 assert(s);
804
4cd1fbcc 805 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 806 return 0;
807
808 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 809 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 810 return -EINVAL;
811 }
812
6cf6bbc2 813 if (s->exec_command[SERVICE_EXEC_START]->command_next) {
4cd1fbcc 814 log_error("%s has more than one ExecStart setting. Refusing.", s->meta.id);
6cf6bbc2
LP		 815 return -EINVAL;
816 }
817
05e343b7 818 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 819 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
820 return -EINVAL;
821 }
822
823 if (s->exec_context.pam_name && s->kill_mode != KILL_CONTROL_GROUP) {
824 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 825 return -EINVAL;
826 }
827
243b1432
LP		 828 return 0;
829}
830
a40eb732
LP		 831static int service_add_default_dependencies(Service *s) {
832 int r;
833
834 assert(s);
835
836 /* Add a number of automatic dependencies useful for the
837 * majority of services. */
838
839 /* First, pull in base system */
840 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
841
842 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
843 return r;
844
845 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
846
847 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
848 return r;
849 }
850
851 /* Second, activate normal shutdown */
852 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
853}
854
e537352b
LP		 855static int service_load(Unit *u) {
856 int r;
857 Service *s = SERVICE(u);
858
859 assert(s);
1e2e8133 860
5cb5a6ff 861 /* Load a .service file */
e537352b 862 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 863 return r;
864
bd77d0fc 865 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 866 if (u->meta.load_state == UNIT_STUB)
867 if ((r = service_load_sysv(s)) < 0)
23a177ef 868 return r;
d46de8a1 869
23a177ef 870 /* Still nothing found? Then let's give up */
e537352b 871 if (u->meta.load_state == UNIT_STUB)
23a177ef 872 return -ENOENT;
034c6ed7 873
23a177ef
LP		 874 /* We were able to load something, then let's add in the
875 * dropin directories. */
876 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 877 return r;
23a177ef
LP		 878
879 /* This is a new unit? Then let's add in some extras */
e537352b 880 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 881 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
882 return r;
883
884 if ((r = unit_add_default_cgroup(u)) < 0)
885 return r;
886
56d748b4 887 if ((r = sysv_fix_order(s)) < 0)
23a177ef 888 return r;
05e343b7
LP		 889
890 if (s->bus_name) {
891 if ((r = service_add_bus_name(s)) < 0)
892 return r;
893
894 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 895 return r;
05e343b7 896 }
c952c6ec
LP		 897
898 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
899 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 900
901 if (s->type == SERVICE_DBUS || s->bus_name)
902 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
903 return r;
904
905 if (s->meta.default_dependencies)
906 if ((r = service_add_default_dependencies(s)) < 0)
907 return r;
8e274523
LP		 908 }
909
243b1432 910 return service_verify(s);
034c6ed7
LP		 911}
912
87f0e418 913static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 914
5cb5a6ff 915 ServiceExecCommand c;
87f0e418 916 Service *s = SERVICE(u);
47be870b
LP		 917 const char *prefix2;
918 char *p2;
5cb5a6ff
LP		 919
920 assert(s);
921
47be870b
LP		 922 p2 = strappend(prefix, "\t");
923 prefix2 = p2 ? p2 : prefix;
44d8db9e 924
5cb5a6ff 925 fprintf(f,
81a2b7ce
LP		 926 "%sService State: %s\n"
927 "%sPermissionsStartOnly: %s\n"
8e274523 928 "%sRootDirectoryStartOnly: %s\n"
03d6ab85 929 "%sValidNoProcess: %s\n"
50159e6a 930 "%sKillMode: %s\n"
c952c6ec
LP		 931 "%sType: %s\n"
932 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 933 prefix, service_state_to_string(s->state),
934 prefix, yes_no(s->permissions_start_only),
8e274523 935 prefix, yes_no(s->root_directory_start_only),
03d6ab85 936 prefix, yes_no(s->valid_no_process),
50159e6a 937 prefix, kill_mode_to_string(s->kill_mode),
c952c6ec
LP		 938 prefix, service_type_to_string(s->type),
939 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 940
70123e68
LP		 941 if (s->control_pid > 0)
942 fprintf(f,
bb00e604
LP		 943 "%sControl PID: %lu\n",
944 prefix, (unsigned long) s->control_pid);
70123e68
LP		 945
946 if (s->main_pid > 0)
947 fprintf(f,
bb00e604
LP		 948 "%sMain PID: %lu\n",
949 prefix, (unsigned long) s->main_pid);
70123e68 950
034c6ed7
LP		 951 if (s->pid_file)
952 fprintf(f,
953 "%sPIDFile: %s\n",
954 prefix, s->pid_file);
955
05e343b7
LP		 956 if (s->bus_name)
957 fprintf(f,
958 "%sBusName: %s\n"
959 "%sBus Name Good: %s\n",
960 prefix, s->bus_name,
961 prefix, yes_no(s->bus_name_good));
962
5cb5a6ff
LP		 963 exec_context_dump(&s->exec_context, f, prefix);
964
e537352b 965 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 966
44d8db9e
LP		 967 if (!s->exec_command[c])
968 continue;
969
40d50879 970 fprintf(f, "%s-> %s:\n",
94f04347 971 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 972
973 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 974 }
44d8db9e 975
2c4104f0
LP		 976 if (s->sysv_path)
977 fprintf(f,
23a177ef
LP		 978 "%sSysV Init Script Path: %s\n"
979 "%sSysV Init Script has LSB Header: %s\n",
980 prefix, s->sysv_path,
981 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 982
983 if (s->sysv_start_priority >= 0)
984 fprintf(f,
23a177ef 985 "%sSysVStartPriority: %i\n",
2c4104f0
LP		 986 prefix, s->sysv_start_priority);
987
8309400a
LP		 988 if (s->sysv_runlevels)
989 fprintf(f, "%sSysVRunLevels: %s\n",
990 prefix, s->sysv_runlevels);
23a177ef 991
8c47c732
LP		 992 if (s->status_text)
993 fprintf(f, "%sStatus Text: %s\n",
994 prefix, s->status_text);
995
47be870b 996 free(p2);
5cb5a6ff
LP		 997}
998
034c6ed7
LP		 999static int service_load_pid_file(Service *s) {
1000 char *k;
034c6ed7 1001 int r;
5925dd3c 1002 pid_t pid;
034c6ed7
LP		 1003
1004 assert(s);
1005
1006 if (s->main_pid_known)
1007 return 0;
1008
5e94833f
LP		 1009 assert(s->main_pid <= 0);
1010
034c6ed7
LP		 1011 if (!s->pid_file)
1012 return -ENOENT;
1013
1014 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1015 return r;
1016
5925dd3c
LP		 1017 r = parse_pid(k, &pid);
1018 free(k);
034c6ed7 1019
5925dd3c
LP		 1020 if (r < 0)
1021 return r;
406eaf93 1022
5925dd3c
LP		 1023 if (kill(pid, 0) < 0 && errno != EPERM) {
1024 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1025 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1026 return -ESRCH;
1027 }
1028
5925dd3c 1029 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1030 return r;
1031
5925dd3c
LP		 1032 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1033 /* FIXME: we need to do something here */
1034 return r;
034c6ed7
LP		 1035
1036 return 0;
1037}
1038
3e33402a
LP		 1039static int service_get_sockets(Service *s, Set **_set) {
1040 Set *set;
ceee3d82
LP		 1041 Iterator i;
1042 char *t;
3e33402a 1043 int r;
ceee3d82
LP		 1044
1045 assert(s);
3e33402a
LP		 1046 assert(_set);
1047
6cf6bbc2
LP		 1048 if (s->socket_fd >= 0)
1049 return 0;
1050
3e33402a
LP		 1051 /* Collects all Socket objects that belong to this
1052 * service. Note that a service might have multiple sockets
1053 * via multiple names. */
1054
1055 if (!(set = set_new(NULL, NULL)))
1056 return -ENOMEM;
ceee3d82 1057
4cd1fbcc 1058 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1059 char *k;
1060 Unit *p;
1061
1062 /* Look for all socket objects that go by any of our
1063 * units and collect their fds */
1064
3e33402a
LP		 1065 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1066 r = -ENOMEM;
1067 goto fail;
1068 }
ceee3d82 1069
4cd1fbcc 1070 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1071 free(k);
1072
8d567588
LP		 1073 if (!p)
1074 continue;
ceee3d82 1075
3e33402a
LP		 1076 if ((r = set_put(set, p)) < 0)
1077 goto fail;
ceee3d82
LP		 1078 }
1079
3e33402a
LP		 1080 *_set = set;
1081 return 0;
1082
1083fail:
1084 set_free(set);
1085 return r;
1086}
1087
e537352b 1088static int service_notify_sockets_dead(Service *s) {
3e33402a
LP		 1089 Iterator i;
1090 Set *set;
47be870b 1091 Socket *sock;
3e33402a
LP		 1092 int r;
1093
1094 assert(s);
1095
6cf6bbc2
LP		 1096 if (s->socket_fd >= 0)
1097 return 0;
1098
3e33402a 1099 /* Notifies all our sockets when we die */
3e33402a
LP		 1100 if ((r = service_get_sockets(s, &set)) < 0)
1101 return r;
1102
47be870b
LP		 1103 SET_FOREACH(sock, set, i)
1104 socket_notify_service_dead(sock);
3e33402a
LP		 1105
1106 set_free(set);
1107
ceee3d82
LP		 1108 return 0;
1109}
1110
034c6ed7
LP		 1111static void service_set_state(Service *s, ServiceState state) {
1112 ServiceState old_state;
5cb5a6ff
LP		 1113 assert(s);
1114
034c6ed7 1115 old_state = s->state;
5cb5a6ff 1116 s->state = state;
034c6ed7
LP		 1117
1118 if (state != SERVICE_START_PRE &&
1119 state != SERVICE_START &&
1120 state != SERVICE_START_POST &&
1121 state != SERVICE_RELOAD &&
1122 state != SERVICE_STOP &&
1123 state != SERVICE_STOP_SIGTERM &&
1124 state != SERVICE_STOP_SIGKILL &&
1125 state != SERVICE_STOP_POST &&
1126 state != SERVICE_FINAL_SIGTERM &&
1127 state != SERVICE_FINAL_SIGKILL &&
1128 state != SERVICE_AUTO_RESTART)
acbb0225 1129 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1130
7d55e835
LP		 1131 if (state != SERVICE_START &&
1132 state != SERVICE_START_POST &&
034c6ed7
LP		 1133 state != SERVICE_RUNNING &&
1134 state != SERVICE_RELOAD &&
1135 state != SERVICE_STOP &&
1136 state != SERVICE_STOP_SIGTERM &&
1137 state != SERVICE_STOP_SIGKILL)
5e94833f 1138 service_unwatch_main_pid(s);
034c6ed7
LP		 1139
1140 if (state != SERVICE_START_PRE &&
1141 state != SERVICE_START &&
1142 state != SERVICE_START_POST &&
1143 state != SERVICE_RELOAD &&
1144 state != SERVICE_STOP &&
1145 state != SERVICE_STOP_SIGTERM &&
1146 state != SERVICE_STOP_SIGKILL &&
1147 state != SERVICE_STOP_POST &&
1148 state != SERVICE_FINAL_SIGTERM &&
e537352b 1149 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1150 service_unwatch_control_pid(s);
034c6ed7 1151 s->control_command = NULL;
a16e1123 1152 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1153 }
034c6ed7 1154
ceee3d82
LP		 1155 if (state == SERVICE_DEAD ||
1156 state == SERVICE_STOP ||
1157 state == SERVICE_STOP_SIGTERM ||
1158 state == SERVICE_STOP_SIGKILL ||
1159 state == SERVICE_STOP_POST ||
1160 state == SERVICE_FINAL_SIGTERM ||
1161 state == SERVICE_FINAL_SIGKILL ||
18c78fb1 1162 state == SERVICE_MAINTENANCE ||
ceee3d82 1163 state == SERVICE_AUTO_RESTART)
e537352b 1164 service_notify_sockets_dead(s);
ceee3d82 1165
4f2d528d
LP		 1166 if (state != SERVICE_START_PRE &&
1167 state != SERVICE_START &&
6cf6bbc2
LP		 1168 state != SERVICE_START_POST &&
1169 state != SERVICE_RUNNING &&
1170 state != SERVICE_RELOAD &&
1171 state != SERVICE_STOP &&
1172 state != SERVICE_STOP_SIGTERM &&
1173 state != SERVICE_STOP_SIGKILL &&
1174 state != SERVICE_STOP_POST &&
1175 state != SERVICE_FINAL_SIGTERM &&
1176 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1177 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1178 service_close_socket_fd(s);
6cf6bbc2
LP		 1179 service_connection_unref(s);
1180 }
4f2d528d 1181
e537352b 1182 if (old_state != state)
4cd1fbcc 1183 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1184
1185 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1186}
1187
a16e1123
LP		 1188static int service_coldplug(Unit *u) {
1189 Service *s = SERVICE(u);
1190 int r;
1191
1192 assert(s);
1193 assert(s->state == SERVICE_DEAD);
1194
1195 if (s->deserialized_state != s->state) {
1196
1197 if (s->deserialized_state == SERVICE_START_PRE ||
1198 s->deserialized_state == SERVICE_START ||
1199 s->deserialized_state == SERVICE_START_POST ||
1200 s->deserialized_state == SERVICE_RELOAD ||
1201 s->deserialized_state == SERVICE_STOP ||
1202 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1203 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1204 s->deserialized_state == SERVICE_STOP_POST ||
1205 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1206 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1207 s->deserialized_state == SERVICE_AUTO_RESTART) {
1208
1209 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1210 usec_t k;
1211
1212 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1213
1214 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1215 return r;
1216 }
1217 }
a16e1123
LP		 1218
1219 if ((s->deserialized_state == SERVICE_START &&
1220 (s->type == SERVICE_FORKING ||
8c47c732
LP		 1221 s->type == SERVICE_DBUS ||
1222 s->type == SERVICE_FINISH ||
1223 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1224 s->deserialized_state == SERVICE_START_POST ||
1225 s->deserialized_state == SERVICE_RUNNING ||
1226 s->deserialized_state == SERVICE_RELOAD ||
1227 s->deserialized_state == SERVICE_STOP ||
1228 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1229 s->deserialized_state == SERVICE_STOP_SIGKILL)
1230 if (s->main_pid > 0)
1231 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1232 return r;
1233
1234 if (s->deserialized_state == SERVICE_START_PRE ||
1235 s->deserialized_state == SERVICE_START ||
1236 s->deserialized_state == SERVICE_START_POST ||
1237 s->deserialized_state == SERVICE_RELOAD ||
1238 s->deserialized_state == SERVICE_STOP ||
1239 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1240 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1241 s->deserialized_state == SERVICE_STOP_POST ||
1242 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1243 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1244 if (s->control_pid > 0)
1245 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1246 return r;
1247
1248 service_set_state(s, s->deserialized_state);
1249 }
1250
1251 return 0;
1252}
1253
44d8db9e
LP		 1254static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1255 Iterator i;
1256 int r;
1257 int *rfds = NULL;
1258 unsigned rn_fds = 0;
3e33402a 1259 Set *set;
47be870b 1260 Socket *sock;
44d8db9e
LP		 1261
1262 assert(s);
1263 assert(fds);
1264 assert(n_fds);
1265
6cf6bbc2
LP		 1266 if (s->socket_fd >= 0)
1267 return 0;
1268
3e33402a
LP		 1269 if ((r = service_get_sockets(s, &set)) < 0)
1270 return r;
1271
47be870b 1272 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1273 int *cfds;
1274 unsigned cn_fds;
1275
47be870b 1276 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1277 goto fail;
1278
1279 if (!cfds)
1280 continue;
1281
1282 if (!rfds) {
1283 rfds = cfds;
1284 rn_fds = cn_fds;
1285 } else {
1286 int *t;
1287
1288 if (!(t = new(int, rn_fds+cn_fds))) {
1289 free(cfds);
1290 r = -ENOMEM;
1291 goto fail;
1292 }
1293
1294 memcpy(t, rfds, rn_fds);
1295 memcpy(t+rn_fds, cfds, cn_fds);
1296 free(rfds);
1297 free(cfds);
1298
1299 rfds = t;
1300 rn_fds = rn_fds+cn_fds;
1301 }
1302 }
1303
1304 *fds = rfds;
1305 *n_fds = rn_fds;
3e33402a
LP		 1306
1307 set_free(set);
1308
44d8db9e
LP		 1309 return 0;
1310
1311fail:
3e33402a 1312 set_free(set);
44d8db9e 1313 free(rfds);
3e33402a 1314
44d8db9e
LP		 1315 return r;
1316}
1317
81a2b7ce
LP		 1318static int service_spawn(
1319 Service *s,
1320 ExecCommand *c,
1321 bool timeout,
1322 bool pass_fds,
1323 bool apply_permissions,
1324 bool apply_chroot,
c952c6ec 1325 bool set_notify_socket,
81a2b7ce
LP		 1326 pid_t *_pid) {
1327
034c6ed7
LP		 1328 pid_t pid;
1329 int r;
6cf6bbc2 1330 int *fds = NULL, *fdsbuf = NULL;
44d8db9e 1331 unsigned n_fds = 0;
c952c6ec 1332 char **argv = NULL, **env = NULL;
034c6ed7
LP		 1333
1334 assert(s);
1335 assert(c);
1336 assert(_pid);
1337
6cf6bbc2
LP		 1338 if (pass_fds ||
1339 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1340 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1341 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1342
4f2d528d
LP		 1343 if (s->socket_fd >= 0) {
1344 fds = &s->socket_fd;
1345 n_fds = 1;
6cf6bbc2
LP		 1346 } else {
1347 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1348 goto fail;
1349
1350 fds = fdsbuf;
1351 }
4f2d528d 1352 }
44d8db9e 1353
e558336f 1354 if (timeout && s->timeout_usec) {
acbb0225 1355 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1356 goto fail;
1357 } else
acbb0225 1358 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1359
9e2f7c11
LP		 1360 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1361 r = -ENOMEM;
1362 goto fail;
1363 }
1364
c952c6ec
LP		 1365 if (set_notify_socket) {
1366 char *t;
1367
1368 if (asprintf(&t, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
1369 r = -ENOMEM;
1370 goto fail;
1371 }
1372
1373 env = strv_env_set(s->meta.manager->environment, t);
1374 free(t);
1375
1376 if (!env) {
1377 r = -ENOMEM;
1378 goto fail;
1379 }
1380 } else
1381 env = s->meta.manager->environment;
1382
9e2f7c11
LP		 1383 r = exec_spawn(c,
1384 argv,
1385 &s->exec_context,
1386 fds, n_fds,
c952c6ec 1387 env,
9e2f7c11
LP		 1388 apply_permissions,
1389 apply_chroot,
4cd1fbcc
LP		 1390 s->meta.manager->confirm_spawn,
1391 s->meta.cgroup_bondings,
9e2f7c11
LP		 1392 &pid);
1393
1394 strv_free(argv);
c952c6ec
LP		 1395 argv = NULL;
1396
1397 if (set_notify_socket)
1398 strv_free(env);
1399 env = NULL;
1400
9e2f7c11 1401 if (r < 0)
034c6ed7
LP		 1402 goto fail;
1403
6cf6bbc2
LP		 1404 if (fdsbuf)
1405 free(fdsbuf);
4f2d528d 1406
87f0e418 1407 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1408 /* FIXME: we need to do something here */
1409 goto fail;
1410
1411 *_pid = pid;
1412
5cb5a6ff 1413 return 0;
034c6ed7
LP		 1414
1415fail:
44d8db9e
LP		 1416 free(fds);
1417
c952c6ec
LP		 1418 strv_free(argv);
1419
1420 if (set_notify_socket)
1421 strv_free(env);
1422
034c6ed7 1423 if (timeout)
acbb0225 1424 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1425
1426 return r;
1427}
1428
80876c20
LP		 1429static int main_pid_good(Service *s) {
1430 assert(s);
1431
1432 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1433 * don't know */
1434
1435 /* If we know the pid file, then lets just check if it is
1436 * still valid */
1437 if (s->main_pid_known)
1438 return s->main_pid > 0;
1439
1440 /* We don't know the pid */
1441 return -EAGAIN;
1442}
1443
1444static int control_pid_good(Service *s) {
1445 assert(s);
1446
1447 return s->control_pid > 0;
1448}
1449
1450static int cgroup_good(Service *s) {
1451 int r;
1452
1453 assert(s);
1454
4cd1fbcc 1455 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1456 return r;
1457
1458 return !r;
1459}
1460
034c6ed7
LP		 1461static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1462 int r;
1463 assert(s);
1464
1465 if (!success)
1466 s->failure = true;
1467
1468 if (allow_restart &&
3a762661 1469 s->allow_restart &&
034c6ed7
LP		 1470 (s->restart == SERVICE_RESTART_ALWAYS ||
1471 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1472
acbb0225 1473 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1474 goto fail;
1475
1476 service_set_state(s, SERVICE_AUTO_RESTART);
1477 } else
18c78fb1 1478 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
034c6ed7
LP		 1479
1480 return;
1481
1482fail:
4cd1fbcc 1483 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1484 service_enter_dead(s, false, false);
1485}
1486
1487static void service_enter_signal(Service *s, ServiceState state, bool success);
1488
1489static void service_enter_stop_post(Service *s, bool success) {
1490 int r;
1491 assert(s);
1492
1493 if (!success)
1494 s->failure = true;
1495
5e94833f
LP		 1496 service_unwatch_control_pid(s);
1497
a16e1123 1498 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1499 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1500 if ((r = service_spawn(s,
1501 s->control_command,
1502 true,
1503 false,
1504 !s->permissions_start_only,
1505 !s->root_directory_start_only,
c952c6ec 1506 false,
81a2b7ce 1507 &s->control_pid)) < 0)
034c6ed7
LP		 1508 goto fail;
1509
d6ea93e3 1510
80876c20
LP		 1511 service_set_state(s, SERVICE_STOP_POST);
1512 } else
1513 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1514
1515 return;
1516
1517fail:
4cd1fbcc 1518 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1519 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1520}
1521
1522static void service_enter_signal(Service *s, ServiceState state, bool success) {
1523 int r;
1524 bool sent = false;
1525
1526 assert(s);
1527
1528 if (!success)
1529 s->failure = true;
1530
80876c20
LP		 1531 if (s->kill_mode != KILL_NONE) {
1532 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
034c6ed7 1533
50159e6a 1534 if (s->kill_mode == KILL_CONTROL_GROUP) {
034c6ed7 1535
4cd1fbcc 1536 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
50159e6a
LP		 1537 if (r != -EAGAIN && r != -ESRCH)
1538 goto fail;
1539 } else
034c6ed7
LP		 1540 sent = true;
1541 }
1542
50159e6a
LP		 1543 if (!sent) {
1544 r = 0;
80876c20 1545
50159e6a
LP		 1546 if (s->main_pid > 0) {
1547 if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
1548 r = -errno;
1549 else
1550 sent = true;
1551 }
1552
1553 if (s->control_pid > 0) {
1554 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
1555 r = -errno;
1556 else
1557 sent = true;
1558 }
1559
1560 if (r < 0)
1561 goto fail;
1562 }
d6ea93e3 1563 }
034c6ed7 1564
e93bc5a6 1565 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
e558336f
LP		 1566 if (s->timeout_usec > 0)
1567 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1568 goto fail;
d6ea93e3 1569
80876c20
LP		 1570 service_set_state(s, state);
1571 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1572 service_enter_stop_post(s, true);
1573 else
034c6ed7
LP		 1574 service_enter_dead(s, true, true);
1575
1576 return;
1577
1578fail:
4cd1fbcc 1579 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1580
80876c20 1581 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1582 service_enter_stop_post(s, false);
1583 else
1584 service_enter_dead(s, false, true);
1585}
1586
1587static void service_enter_stop(Service *s, bool success) {
1588 int r;
5925dd3c 1589
034c6ed7
LP		 1590 assert(s);
1591
1592 if (!success)
1593 s->failure = true;
1594
5e94833f
LP		 1595 service_unwatch_control_pid(s);
1596
a16e1123 1597 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1598 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1599 if ((r = service_spawn(s,
1600 s->control_command,
1601 true,
1602 false,
1603 !s->permissions_start_only,
1604 !s->root_directory_start_only,
c952c6ec 1605 false,
e55224ca 1606 &s->control_pid)) < 0)
034c6ed7
LP		 1607 goto fail;
1608
80876c20
LP		 1609 service_set_state(s, SERVICE_STOP);
1610 } else
034c6ed7
LP		 1611 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1612
1613 return;
1614
1615fail:
4cd1fbcc 1616 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1617 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1618}
1619
80876c20 1620static void service_enter_running(Service *s, bool success) {
4eab639f 1621 int main_pid_ok, cgroup_ok;
80876c20
LP		 1622 assert(s);
1623
1624 if (!success)
1625 s->failure = true;
1626
4eab639f
LP		 1627 main_pid_ok = main_pid_good(s);
1628 cgroup_ok = cgroup_good(s);
1629
1630 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1631 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20
LP		 1632 service_set_state(s, SERVICE_RUNNING);
1633 else if (s->valid_no_process)
1634 service_set_state(s, SERVICE_EXITED);
1635 else
1636 service_enter_stop(s, true);
1637}
1638
034c6ed7
LP		 1639static void service_enter_start_post(Service *s) {
1640 int r;
1641 assert(s);
1642
5e94833f
LP		 1643 service_unwatch_control_pid(s);
1644
a16e1123 1645 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1646 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1647 if ((r = service_spawn(s,
1648 s->control_command,
1649 true,
1650 false,
1651 !s->permissions_start_only,
1652 !s->root_directory_start_only,
c952c6ec 1653 false,
e55224ca 1654 &s->control_pid)) < 0)
034c6ed7
LP		 1655 goto fail;
1656
80876c20
LP		 1657 service_set_state(s, SERVICE_START_POST);
1658 } else
1659 service_enter_running(s, true);
034c6ed7
LP		 1660
1661 return;
1662
1663fail:
4cd1fbcc 1664 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1665 service_enter_stop(s, false);
1666}
1667
1668static void service_enter_start(Service *s) {
1669 pid_t pid;
1670 int r;
1671
1672 assert(s);
1673
1674 assert(s->exec_command[SERVICE_EXEC_START]);
1675 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1676
80876c20
LP		 1677 if (s->type == SERVICE_FORKING)
1678 service_unwatch_control_pid(s);
1679 else
1680 service_unwatch_main_pid(s);
1681
81a2b7ce
LP		 1682 if ((r = service_spawn(s,
1683 s->exec_command[SERVICE_EXEC_START],
8c47c732 1684 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1685 true,
1686 true,
1687 true,
c952c6ec 1688 s->notify_access != NOTIFY_NONE,
81a2b7ce 1689 &pid)) < 0)
034c6ed7
LP		 1690 goto fail;
1691
1692 if (s->type == SERVICE_SIMPLE) {
1693 /* For simple services we immediately start
1694 * the START_POST binaries. */
1695
5925dd3c 1696 service_set_main_pid(s, pid);
034c6ed7
LP		 1697 service_enter_start_post(s);
1698
1699 } else if (s->type == SERVICE_FORKING) {
1700
1701 /* For forking services we wait until the start
1702 * process exited. */
1703
a16e1123 1704 s->control_command_id = SERVICE_EXEC_START;
034c6ed7 1705 s->control_command = s->exec_command[SERVICE_EXEC_START];
5925dd3c 1706
e55224ca 1707 s->control_pid = pid;
80876c20
LP		 1708 service_set_state(s, SERVICE_START);
1709
05e343b7 1710 } else if (s->type == SERVICE_FINISH ||
8c47c732
LP		 1711 s->type == SERVICE_DBUS ||
1712 s->type == SERVICE_NOTIFY) {
7d55e835
LP		 1713
1714 /* For finishing services we wait until the start
1715 * process exited, too, but it is our main process. */
1716
05e343b7 1717 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1718 * but wait for the bus name to appear on the
1719 * bus. Notify services are similar. */
05e343b7 1720
5925dd3c 1721 service_set_main_pid(s, pid);
80876c20 1722 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1723 } else
1724 assert_not_reached("Unknown service type");
1725
1726 return;
1727
1728fail:
4cd1fbcc 1729 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1730 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1731}
1732
1733static void service_enter_start_pre(Service *s) {
1734 int r;
1735
1736 assert(s);
1737
5e94833f
LP		 1738 service_unwatch_control_pid(s);
1739
a16e1123 1740 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1741 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1742 if ((r = service_spawn(s,
1743 s->control_command,
1744 true,
1745 false,
1746 !s->permissions_start_only,
1747 !s->root_directory_start_only,
c952c6ec 1748 false,
e55224ca 1749 &s->control_pid)) < 0)
034c6ed7
LP		 1750 goto fail;
1751
80876c20
LP		 1752 service_set_state(s, SERVICE_START_PRE);
1753 } else
034c6ed7
LP		 1754 service_enter_start(s);
1755
1756 return;
1757
1758fail:
4cd1fbcc 1759 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1760 service_enter_dead(s, false, true);
1761}
1762
1763static void service_enter_restart(Service *s) {
1764 int r;
1765 assert(s);
1766
9ea9a0c8
LP		 1767 service_enter_dead(s, true, false);
1768
4cd1fbcc 1769 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
034c6ed7
LP		 1770 goto fail;
1771
4cd1fbcc 1772 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 1773 return;
1774
1775fail:
1776
4cd1fbcc 1777 log_warning("%s failed to schedule restart job: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1778 service_enter_dead(s, false, false);
1779}
1780
1781static void service_enter_reload(Service *s) {
1782 int r;
1783
1784 assert(s);
1785
5e94833f
LP		 1786 service_unwatch_control_pid(s);
1787
a16e1123 1788 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 1789 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 1790 if ((r = service_spawn(s,
1791 s->control_command,
1792 true,
1793 false,
1794 !s->permissions_start_only,
1795 !s->root_directory_start_only,
c952c6ec 1796 false,
e55224ca 1797 &s->control_pid)) < 0)
034c6ed7
LP		 1798 goto fail;
1799
80876c20
LP		 1800 service_set_state(s, SERVICE_RELOAD);
1801 } else
1802 service_enter_running(s, true);
034c6ed7
LP		 1803
1804 return;
1805
1806fail:
4cd1fbcc 1807 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1808 service_enter_stop(s, false);
1809}
1810
1811static void service_run_next(Service *s, bool success) {
1812 int r;
1813
1814 assert(s);
1815 assert(s->control_command);
1816 assert(s->control_command->command_next);
1817
1818 if (!success)
1819 s->failure = true;
1820
1821 s->control_command = s->control_command->command_next;
1822
5e94833f
LP		 1823 service_unwatch_control_pid(s);
1824
81a2b7ce
LP		 1825 if ((r = service_spawn(s,
1826 s->control_command,
1827 true,
1828 false,
1829 !s->permissions_start_only,
1830 !s->root_directory_start_only,
c952c6ec 1831 false,
e55224ca 1832 &s->control_pid)) < 0)
034c6ed7
LP		 1833 goto fail;
1834
1835 return;
1836
1837fail:
4cd1fbcc 1838 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
034c6ed7 1839
80876c20
LP		 1840 if (s->state == SERVICE_START_PRE)
1841 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1842 else if (s->state == SERVICE_STOP)
1843 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 1844 else if (s->state == SERVICE_STOP_POST)
1845 service_enter_dead(s, false, true);
1846 else
1847 service_enter_stop(s, false);
5cb5a6ff
LP		 1848}
1849
87f0e418
LP		 1850static int service_start(Unit *u) {
1851 Service *s = SERVICE(u);
5cb5a6ff
LP		 1852
1853 assert(s);
1854
034c6ed7
LP		 1855 /* We cannot fulfill this request right now, try again later
1856 * please! */
1857 if (s->state == SERVICE_STOP ||
1858 s->state == SERVICE_STOP_SIGTERM ||
1859 s->state == SERVICE_STOP_SIGKILL ||
1860 s->state == SERVICE_STOP_POST ||
1861 s->state == SERVICE_FINAL_SIGTERM ||
1862 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 1863 return -EAGAIN;
1864
034c6ed7
LP		 1865 /* Already on it! */
1866 if (s->state == SERVICE_START_PRE ||
1867 s->state == SERVICE_START ||
1868 s->state == SERVICE_START_POST)
1869 return 0;
1870
18c78fb1 1871 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 1872
1e2e8133
LP		 1873 /* Make sure we don't enter a busy loop of some kind. */
1874 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 1875 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 1876 return -ECANCELED;
1e2e8133
LP		 1877 }
1878
034c6ed7
LP		 1879 s->failure = false;
1880 s->main_pid_known = false;
3a762661 1881 s->allow_restart = true;
034c6ed7
LP		 1882
1883 service_enter_start_pre(s);
1884 return 0;
5cb5a6ff
LP		 1885}
1886
87f0e418
LP		 1887static int service_stop(Unit *u) {
1888 Service *s = SERVICE(u);
5cb5a6ff
LP		 1889
1890 assert(s);
1891
e537352b 1892 /* Cannot do this now */
034c6ed7
LP		 1893 if (s->state == SERVICE_START_PRE ||
1894 s->state == SERVICE_START ||
1895 s->state == SERVICE_START_POST ||
1896 s->state == SERVICE_RELOAD)
1897 return -EAGAIN;
1898
e537352b
LP		 1899 /* Already on it */
1900 if (s->state == SERVICE_STOP ||
1901 s->state == SERVICE_STOP_SIGTERM ||
1902 s->state == SERVICE_STOP_SIGKILL ||
1903 s->state == SERVICE_STOP_POST ||
1904 s->state == SERVICE_FINAL_SIGTERM ||
1905 s->state == SERVICE_FINAL_SIGKILL)
1906 return 0;
1907
034c6ed7
LP		 1908 if (s->state == SERVICE_AUTO_RESTART) {
1909 service_set_state(s, SERVICE_DEAD);
1910 return 0;
1911 }
1912
80876c20 1913 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
5cb5a6ff 1914
3a762661
LP		 1915 /* This is a user request, so don't do restarts on this
1916 * shutdown. */
1917 s->allow_restart = false;
1918
034c6ed7 1919 service_enter_stop(s, true);
5cb5a6ff
LP		 1920 return 0;
1921}
1922
87f0e418
LP		 1923static int service_reload(Unit *u) {
1924 Service *s = SERVICE(u);
034c6ed7
LP		 1925
1926 assert(s);
1927
80876c20 1928 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 1929
1930 service_enter_reload(s);
5cb5a6ff
LP		 1931 return 0;
1932}
1933
87f0e418
LP		 1934static bool service_can_reload(Unit *u) {
1935 Service *s = SERVICE(u);
034c6ed7
LP		 1936
1937 assert(s);
1938
1939 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1940}
1941
a16e1123
LP		 1942static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1943 Service *s = SERVICE(u);
1944
1945 assert(u);
1946 assert(f);
1947 assert(fds);
1948
1949 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
1950 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1951
1952 if (s->control_pid > 0)
5925dd3c 1953 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 1954
5925dd3c
LP		 1955 if (s->main_pid_known && s->main_pid > 0)
1956 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 1957
1958 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
1959
1960 /* There's a minor uncleanliness here: if there are multiple
1961 * commands attached here, we will start from the first one
1962 * again */
1963 if (s->control_command_id >= 0)
825636e5 1964 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 1965
1966 if (s->socket_fd >= 0) {
1967 int copy;
1968
1969 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
1970 return copy;
1971
1972 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
1973 }
1974
ecdbca40
LP		 1975 if (s->main_exec_status.pid > 0) {
1976 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
1977
1978 if (s->main_exec_status.start_timestamp.realtime > 0) {
1979 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
1980 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
1981
1982 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
1983 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
1984 }
1985
1986 if (s->main_exec_status.exit_timestamp.realtime > 0) {
1987 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
1988 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
1989 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
1990 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
1991
1992 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
1993 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
1994 }
1995 }
1996
a16e1123
LP		 1997 return 0;
1998}
1999
2000static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2001 Service *s = SERVICE(u);
2002 int r;
2003
2004 assert(u);
2005 assert(key);
2006 assert(value);
2007 assert(fds);
2008
2009 if (streq(key, "state")) {
2010 ServiceState state;
2011
2012 if ((state = service_state_from_string(value)) < 0)
2013 log_debug("Failed to parse state value %s", value);
2014 else
2015 s->deserialized_state = state;
2016 } else if (streq(key, "failure")) {
2017 int b;
2018
2019 if ((b = parse_boolean(value)) < 0)
2020 log_debug("Failed to parse failure value %s", value);
2021 else
2022 s->failure = b || s->failure;
2023 } else if (streq(key, "control-pid")) {
5925dd3c 2024 pid_t pid;
a16e1123 2025
5925dd3c 2026 if ((r = parse_pid(value, &pid)) < 0)
a16e1123
LP		 2027 log_debug("Failed to parse control-pid value %s", value);
2028 else
e55224ca 2029 s->control_pid = pid;
a16e1123 2030 } else if (streq(key, "main-pid")) {
5925dd3c 2031 pid_t pid;
a16e1123 2032
5925dd3c 2033 if ((r = parse_pid(value, &pid)) < 0)
a16e1123
LP		 2034 log_debug("Failed to parse main-pid value %s", value);
2035 else
5925dd3c 2036 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2037 } else if (streq(key, "main-pid-known")) {
2038 int b;
2039
2040 if ((b = parse_boolean(value)) < 0)
2041 log_debug("Failed to parse main-pid-known value %s", value);
2042 else
2043 s->main_pid_known = b;
2044 } else if (streq(key, "control-command")) {
2045 ServiceExecCommand id;
2046
2047 if ((id = service_exec_command_from_string(value)) < 0)
2048 log_debug("Failed to parse exec-command value %s", value);
2049 else {
2050 s->control_command_id = id;
2051 s->control_command = s->exec_command[id];
2052 }
2053 } else if (streq(key, "socket-fd")) {
2054 int fd;
2055
2056 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2057 log_debug("Failed to parse socket-fd value %s", value);
2058 else {
2059
2060 if (s->socket_fd >= 0)
2061 close_nointr_nofail(s->socket_fd);
2062 s->socket_fd = fdset_remove(fds, fd);
2063 }
ecdbca40
LP		 2064 } else if (streq(key, "main-exec-status-pid")) {
2065 pid_t pid;
2066
2067 if ((r = parse_pid(value, &pid)) < 0)
2068 log_debug("Failed to parse main-exec-status-pid value %s", value);
2069 else
2070 s->main_exec_status.pid = pid;
2071 } else if (streq(key, "main-exec-status-code")) {
2072 int i;
2073
2074 if ((r = safe_atoi(value, &i)) < 0)
2075 log_debug("Failed to parse main-exec-status-code value %s", value);
2076 else
2077 s->main_exec_status.code = i;
2078 } else if (streq(key, "main-exec-status-status")) {
2079 int i;
2080
2081 if ((r = safe_atoi(value, &i)) < 0)
2082 log_debug("Failed to parse main-exec-status-status value %s", value);
2083 else
2084 s->main_exec_status.status = i;
2085 } else if (streq(key, "main-exec-status-start-realtime")) {
2086 uint64_t k;
2087
af2ab1f9 2088 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2089 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2090 else
2091 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2092 } else if (streq(key, "main-exec-status-start-monotonic")) {
2093 uint64_t k;
2094
af2ab1f9 2095 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2096 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2097 else
2098 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2099 } else if (streq(key, "main-exec-status-exit-realtime")) {
2100 uint64_t k;
2101
af2ab1f9 2102 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2103 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2104 else
2105 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2106 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2107 uint64_t k;
2108
af2ab1f9 2109 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2110 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2111 else
2112 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2113 } else
2114 log_debug("Unknown serialization key '%s'", key);
2115
2116 return 0;
2117}
2118
87f0e418
LP		 2119static UnitActiveState service_active_state(Unit *u) {
2120 assert(u);
5cb5a6ff 2121
acbb0225 2122 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2123}
2124
10a94420
LP		 2125static const char *service_sub_state_to_string(Unit *u) {
2126 assert(u);
2127
2128 return service_state_to_string(SERVICE(u)->state);
2129}
2130
701cc384
LP		 2131static bool service_check_gc(Unit *u) {
2132 Service *s = SERVICE(u);
2133
2134 assert(s);
2135
2136 return !!s->sysv_path;
2137}
2138
2139static bool service_check_snapshot(Unit *u) {
2140 Service *s = SERVICE(u);
2141
2142 assert(s);
2143
2144 return !s->got_socket_fd;
2145}
2146
87f0e418
LP		 2147static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2148 Service *s = SERVICE(u);
034c6ed7 2149 bool success;
5cb5a6ff
LP		 2150
2151 assert(s);
034c6ed7
LP		 2152 assert(pid >= 0);
2153
cb8a8f78 2154 success = is_clean_exit(code, status);
034c6ed7
LP		 2155 s->failure = s->failure || !success;
2156
2157 if (s->main_pid == pid) {
2158
b58b4116 2159 exec_status_exit(&s->main_exec_status, pid, code, status);
034c6ed7
LP		 2160 s->main_pid = 0;
2161
8c47c732 2162 if (s->type != SERVICE_FORKING) {
034c6ed7
LP		 2163 assert(s->exec_command[SERVICE_EXEC_START]);
2164 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
2165 }
2166
9e2f7c11 2167 log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
034c6ed7
LP		 2168
2169 /* The service exited, so the service is officially
2170 * gone. */
2171
2172 switch (s->state) {
2173
2174 case SERVICE_START_POST:
2175 case SERVICE_RELOAD:
2176 case SERVICE_STOP:
2177 /* Need to wait until the operation is
2178 * done */
2179 break;
2180
7d55e835 2181 case SERVICE_START:
c4653a4d
LP		 2182 if (s->type == SERVICE_FINISH) {
2183 /* This was our main goal, so let's go on */
2184 if (success)
2185 service_enter_start_post(s);
2186 else
2187 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2188 break;
2189 } else {
8c47c732 2190 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2191
c4653a4d
LP		 2192 /* Fall through */
2193 }
7d55e835 2194
034c6ed7 2195 case SERVICE_RUNNING:
80876c20 2196 service_enter_running(s, success);
034c6ed7
LP		 2197 break;
2198
2199 case SERVICE_STOP_SIGTERM:
2200 case SERVICE_STOP_SIGKILL:
2201
2202 if (!control_pid_good(s))
2203 service_enter_stop_post(s, success);
5cb5a6ff 2204
034c6ed7
LP		 2205 /* If there is still a control process, wait for that first */
2206 break;
5cb5a6ff 2207
034c6ed7
LP		 2208 default:
2209 assert_not_reached("Uh, main process died at wrong time.");
2210 }
5cb5a6ff 2211
034c6ed7 2212 } else if (s->control_pid == pid) {
034c6ed7 2213
a16e1123 2214 if (s->control_command)
b58b4116 2215 exec_status_exit(&s->control_command->exec_status, pid, code, status);
a16e1123 2216
034c6ed7
LP		 2217 s->control_pid = 0;
2218
9e2f7c11 2219 log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
034c6ed7
LP		 2220
2221 /* If we are shutting things down anyway we
2222 * don't care about failing commands. */
2223
a16e1123 2224 if (s->control_command && s->control_command->command_next && success) {
034c6ed7
LP		 2225
2226 /* There is another command to *
2227 * execute, so let's do that. */
2228
9e2f7c11 2229 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
034c6ed7
LP		 2230 service_run_next(s, success);
2231
80876c20 2232 } else {
034c6ed7
LP		 2233 /* No further commands for this step, so let's
2234 * figure out what to do next */
2235
a16e1123
LP		 2236 s->control_command = NULL;
2237 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2238
9e2f7c11 2239 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2240
034c6ed7
LP		 2241 switch (s->state) {
2242
2243 case SERVICE_START_PRE:
2244 if (success)
2245 service_enter_start(s);
2246 else
80876c20 2247 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2248 break;
2249
2250 case SERVICE_START:
2251 assert(s->type == SERVICE_FORKING);
2252
2253 /* Let's try to load the pid
2254 * file here if we can. We
2255 * ignore the return value,
2256 * since the PID file might
2257 * actually be created by a
2258 * START_POST script */
2259
2260 if (success) {
2261 if (s->pid_file)
2262 service_load_pid_file(s);
2263
2264 service_enter_start_post(s);
2265 } else
80876c20 2266 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2267
2268 break;
2269
2270 case SERVICE_START_POST:
2271 if (success && s->pid_file && !s->main_pid_known) {
2272 int r;
2273
2274 /* Hmm, let's see if we can
2275 * load the pid now after the
2276 * start-post scripts got
2277 * executed. */
2278
2279 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2280 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2281 }
2282
2283 /* Fall through */
2284
2285 case SERVICE_RELOAD:
80876c20
LP		 2286 if (success)
2287 service_enter_running(s, true);
2288 else
034c6ed7
LP		 2289 service_enter_stop(s, false);
2290
2291 break;
2292
2293 case SERVICE_STOP:
80876c20 2294 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2295 break;
2296
2297 case SERVICE_STOP_SIGTERM:
2298 case SERVICE_STOP_SIGKILL:
2299 if (main_pid_good(s) <= 0)
2300 service_enter_stop_post(s, success);
2301
2302 /* If there is still a service
2303 * process around, wait until
2304 * that one quit, too */
2305 break;
2306
2307 case SERVICE_STOP_POST:
2308 case SERVICE_FINAL_SIGTERM:
2309 case SERVICE_FINAL_SIGKILL:
2310 service_enter_dead(s, success, true);
2311 break;
2312
2313 default:
2314 assert_not_reached("Uh, control process died at wrong time.");
2315 }
2316 }
8c47c732 2317 }
034c6ed7
LP		 2318}
2319
acbb0225 2320static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2321 Service *s = SERVICE(u);
034c6ed7
LP		 2322
2323 assert(s);
2324 assert(elapsed == 1);
2325
acbb0225 2326 assert(w == &s->timer_watch);
034c6ed7
LP		 2327
2328 switch (s->state) {
2329
2330 case SERVICE_START_PRE:
2331 case SERVICE_START:
9e2f7c11 2332 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2333 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2334 break;
2335
034c6ed7
LP		 2336 case SERVICE_START_POST:
2337 case SERVICE_RELOAD:
9e2f7c11 2338 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2339 service_enter_stop(s, false);
2340 break;
2341
2342 case SERVICE_STOP:
9e2f7c11 2343 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2344 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2345 break;
2346
2347 case SERVICE_STOP_SIGTERM:
9e2f7c11 2348 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2349 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2350 break;
2351
2352 case SERVICE_STOP_SIGKILL:
2353 /* Uh, wie sent a SIGKILL and it is still not gone?
2354 * Must be something we cannot kill, so let's just be
2355 * weirded out and continue */
2356
9e2f7c11 2357 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2358 service_enter_stop_post(s, false);
2359 break;
2360
2361 case SERVICE_STOP_POST:
9e2f7c11 2362 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2363 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2364 break;
2365
2366 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2367 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2368 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2369 break;
2370
2371 case SERVICE_FINAL_SIGKILL:
18c78fb1 2372 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
034c6ed7
LP		 2373 service_enter_dead(s, false, true);
2374 break;
2375
2376 case SERVICE_AUTO_RESTART:
54165a39 2377 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2378 service_enter_restart(s);
2379 break;
2380
2381 default:
2382 assert_not_reached("Timeout at wrong time.");
2383 }
5cb5a6ff
LP		 2384}
2385
8e274523
LP		 2386static void service_cgroup_notify_event(Unit *u) {
2387 Service *s = SERVICE(u);
2388
2389 assert(u);
2390
9e2f7c11 2391 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2392
2393 switch (s->state) {
2394
2395 /* Waiting for SIGCHLD is usually more interesting,
2396 * because it includes return codes/signals. Which is
2397 * why we ignore the cgroup events for most cases,
2398 * except when we don't know pid which to expect the
2399 * SIGCHLD for. */
2400
2401 case SERVICE_RUNNING:
80876c20 2402 service_enter_running(s, true);
8e274523
LP		 2403 break;
2404
2405 default:
2406 ;
2407 }
2408}
2409
c952c6ec 2410static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2411 Service *s = SERVICE(u);
2412 const char *e;
2413
2414 assert(u);
2415
c952c6ec
LP		 2416 if (s->notify_access == NOTIFY_NONE) {
2417 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2418 u->meta.id, (unsigned long) pid);
2419 return;
2420 }
2421
2422 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2423 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2424 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2425 return;
2426 }
2427
8c47c732
LP		 2428 log_debug("%s: Got message", u->meta.id);
2429
2430 /* Interpret MAINPID= */
2431 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2432 (s->state == SERVICE_START ||
2433 s->state == SERVICE_START_POST ||
2434 s->state == SERVICE_RUNNING ||
2435 s->state == SERVICE_RELOAD)) {
8c47c732 2436
5925dd3c 2437 if (parse_pid(e + 8, &pid) < 0)
8c47c732
LP		 2438 log_warning("Failed to parse %s", e);
2439 else {
2440 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2441 service_set_main_pid(s, pid);
8c47c732
LP		 2442 }
2443 }
2444
2445 /* Interpret READY= */
2446 if (s->type == SERVICE_NOTIFY &&
2447 s->state == SERVICE_START &&
2448 strv_find(tags, "READY=1")) {
2449 log_debug("%s: got READY=1", u->meta.id);
2450
2451 service_enter_start_post(s);
2452 }
2453
2454 /* Interpret STATUS= */
2455 if ((e = strv_find_prefix(tags, "STATUS="))) {
2456 char *t;
2457
2458 if (!(t = strdup(e+7))) {
2459 log_error("Failed to allocate string.");
2460 return;
2461 }
2462
2463 log_debug("%s: got %s", u->meta.id, e);
2464
2465 free(s->status_text);
2466 s->status_text = t;
2467 }
2468}
2469
2c4104f0 2470static int service_enumerate(Manager *m) {
2c4104f0
LP		 2471 char **p;
2472 unsigned i;
2473 DIR *d = NULL;
2474 char *path = NULL, *fpath = NULL, *name = NULL;
2475 int r;
2476
2477 assert(m);
2478
84e3543e 2479 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2480 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2481 struct dirent *de;
2482
2483 free(path);
2484 path = NULL;
09cd1ab1 2485 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2486 r = -ENOMEM;
2487 goto finish;
2488 }
2489
2490 if (d)
2491 closedir(d);
2492
2493 if (!(d = opendir(path))) {
2494 if (errno != ENOENT)
2495 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2496
2497 continue;
2498 }
2499
2500 while ((de = readdir(d))) {
6542952f 2501 Unit *service;
db06e3b6 2502 int a, b;
2c4104f0
LP		 2503
2504 if (ignore_file(de->d_name))
2505 continue;
2506
2507 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2508 continue;
2509
2510 if (strlen(de->d_name) < 4)
2511 continue;
2512
db06e3b6
LP		 2513 a = undecchar(de->d_name[1]);
2514 b = undecchar(de->d_name[2]);
2515
2516 if (a < 0 || b < 0)
2517 continue;
2518
2c4104f0
LP		 2519 free(fpath);
2520 fpath = NULL;
09cd1ab1 2521 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2522 r = -ENOMEM;
2523 goto finish;
2524 }
2525
2526 if (access(fpath, X_OK) < 0) {
2527
2528 if (errno != ENOENT)
2529 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2530
2531 continue;
2532 }
2533
2534 free(name);
b7ccee3c 2535 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2536 r = -ENOMEM;
2537 goto finish;
2538 }
2539
fbe9f3a9
LP		 2540 if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) {
2541 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2542 continue;
2543 }
2c4104f0 2544
09cd1ab1 2545 if (de->d_name[0] == 'S' &&
fc5df99e 2546 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
fbe9f3a9
LP		 2547 SERVICE(service)->sysv_start_priority =
2548 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6
LP		 2549
2550 manager_dispatch_load_queue(m);
2551 service = unit_follow_merge(service);
2552
2c4104f0 2553 if (de->d_name[0] == 'S') {
2c4104f0 2554
2c966c03 2555 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2c4104f0 2556 goto finish;
23a177ef 2557
fc5df99e
LP		 2558 } else if (de->d_name[0] == 'K' &&
2559 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2560 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2561
23a177ef
LP		 2562 /* We honour K links only for
2563 * halt/reboot. For the normal
2564 * runlevels we assume the
2565 * stop jobs will be
2566 * implicitly added by the
6542952f
LP		 2567 * core logic. Also, we don't
2568 * really distuingish here
2569 * between the runlevels 0 and
2570 * 6 and just add them to the
fc5df99e
LP		 2571 * special shutdown target. On
2572 * SUSE the boot.d/ runlevel
2573 * is also used for shutdown,
2574 * so we add links for that
2575 * too to the shutdown
2576 * target.*/
6542952f 2577
2c966c03 2578 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2c4104f0
LP		 2579 goto finish;
2580 }
2581 }
2582 }
2583
2584 r = 0;
2585
2586finish:
2587 free(path);
2588 free(fpath);
2589 free(name);
fbe9f3a9
LP		 2590
2591 if (d)
2592 closedir(d);
2c4104f0
LP		 2593
2594 return r;
2595}
2596
05e343b7
LP		 2597static void service_bus_name_owner_change(
2598 Unit *u,
2599 const char *name,
2600 const char *old_owner,
2601 const char *new_owner) {
2602
2603 Service *s = SERVICE(u);
2604
2605 assert(s);
2606 assert(name);
2607
2608 assert(streq(s->bus_name, name));
2609 assert(old_owner || new_owner);
2610
2611 if (old_owner && new_owner)
2612 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2613 else if (old_owner)
2614 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2615 else
2616 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2617
2618 s->bus_name_good = !!new_owner;
2619
2620 if (s->type == SERVICE_DBUS) {
2621
2622 /* service_enter_running() will figure out what to
2623 * do */
2624 if (s->state == SERVICE_RUNNING)
2625 service_enter_running(s, true);
2626 else if (s->state == SERVICE_START && new_owner)
2627 service_enter_start_post(s);
2628
2629 } else if (new_owner &&
2630 s->main_pid <= 0 &&
2631 (s->state == SERVICE_START ||
2632 s->state == SERVICE_START_POST ||
2633 s->state == SERVICE_RUNNING ||
2634 s->state == SERVICE_RELOAD)) {
2635
2636 /* Try to acquire PID from bus service */
2637 log_debug("Trying to acquire PID from D-Bus name...");
2638
2639 bus_query_pid(u->meta.manager, name);
2640 }
2641}
2642
2643static void service_bus_query_pid_done(
2644 Unit *u,
2645 const char *name,
2646 pid_t pid) {
2647
2648 Service *s = SERVICE(u);
2649
2650 assert(s);
2651 assert(name);
2652
2653 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2654
2655 if (s->main_pid <= 0 &&
2656 (s->state == SERVICE_START ||
2657 s->state == SERVICE_START_POST ||
2658 s->state == SERVICE_RUNNING ||
2659 s->state == SERVICE_RELOAD))
5925dd3c 2660 service_set_main_pid(s, pid);
05e343b7
LP		 2661}
2662
6cf6bbc2 2663int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 2664 assert(s);
2665 assert(fd >= 0);
2666
2667 /* This is called by the socket code when instantiating a new
2668 * service for a stream socket and the socket needs to be
2669 * configured. */
2670
4cd1fbcc 2671 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 2672 return -EINVAL;
2673
2674 if (s->socket_fd >= 0)
2675 return -EBUSY;
2676
2677 if (s->state != SERVICE_DEAD)
2678 return -EAGAIN;
2679
2680 s->socket_fd = fd;
701cc384 2681 s->got_socket_fd = true;
6cf6bbc2
LP		 2682 s->socket = sock;
2683
4f2d528d
LP		 2684 return 0;
2685}
2686
94f04347
LP		 2687static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2688 [SERVICE_DEAD] = "dead",
2689 [SERVICE_START_PRE] = "start-pre",
2690 [SERVICE_START] = "start",
2691 [SERVICE_START_POST] = "start-post",
2692 [SERVICE_RUNNING] = "running",
80876c20 2693 [SERVICE_EXITED] = "exited",
94f04347
LP		 2694 [SERVICE_RELOAD] = "reload",
2695 [SERVICE_STOP] = "stop",
2696 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2697 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2698 [SERVICE_STOP_POST] = "stop-post",
2699 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2700 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
18c78fb1 2701 [SERVICE_MAINTENANCE] = "maintenance",
94f04347
LP		 2702 [SERVICE_AUTO_RESTART] = "auto-restart",
2703};
2704
2705DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2706
2707static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2708 [SERVICE_ONCE] = "once",
2709 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 2710 [SERVICE_RESTART_ALWAYS] = "restart-always",
94f04347
LP		 2711};
2712
2713DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2714
2715static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 2716 [SERVICE_SIMPLE] = "simple",
0d624a78 2717 [SERVICE_FORKING] = "forking",
05e343b7 2718 [SERVICE_FINISH] = "finish",
8c47c732
LP		 2719 [SERVICE_DBUS] = "dbus",
2720 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 2721};
2722
2723DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2724
e537352b 2725static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 2726 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2727 [SERVICE_EXEC_START] = "ExecStart",
2728 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2729 [SERVICE_EXEC_RELOAD] = "ExecReload",
2730 [SERVICE_EXEC_STOP] = "ExecStop",
2731 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2732};
2733
2734DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2735
c952c6ec
LP		 2736static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
2737 [NOTIFY_NONE] = "none",
2738 [NOTIFY_MAIN] = "main",
2739 [NOTIFY_ALL] = "all"
2740};
2741
2742DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
2743
87f0e418 2744const UnitVTable service_vtable = {
5cb5a6ff 2745 .suffix = ".service",
9e58ff9c 2746 .show_status = true,
5cb5a6ff 2747
034c6ed7
LP		 2748 .init = service_init,
2749 .done = service_done,
a16e1123
LP		 2750 .load = service_load,
2751
2752 .coldplug = service_coldplug,
034c6ed7 2753
5cb5a6ff
LP		 2754 .dump = service_dump,
2755
2756 .start = service_start,
2757 .stop = service_stop,
2758 .reload = service_reload,
2759
034c6ed7
LP		 2760 .can_reload = service_can_reload,
2761
a16e1123
LP		 2762 .serialize = service_serialize,
2763 .deserialize_item = service_deserialize_item,
2764
5cb5a6ff 2765 .active_state = service_active_state,
10a94420 2766 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 2767
701cc384
LP		 2768 .check_gc = service_check_gc,
2769 .check_snapshot = service_check_snapshot,
2770
034c6ed7
LP		 2771 .sigchld_event = service_sigchld_event,
2772 .timer_event = service_timer_event,
2c4104f0 2773
8e274523 2774 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 2775 .notify_message = service_notify_message,
8e274523 2776
05e343b7
LP		 2777 .bus_name_owner_change = service_bus_name_owner_change,
2778 .bus_query_pid_done = service_bus_query_pid_done,
2779
4139c1b2
LP		 2780 .bus_message_handler = bus_service_message_handler,
2781
2c4104f0 2782 .enumerate = service_enumerate
5cb5a6ff 2783};
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