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selinux: minor error handling fix
[thirdparty/systemd.git] / src / service.c
CommitLineData
5cb5a6ff
LP		 1/*-*- Mode: C; c-basic-offset: 8 -*-*/
2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
2c4104f0
LP		 37
38#define COMMENTS "#;\n"
39#define NEWLINES "\n\r"
034c6ed7 40
09cd1ab1
LP		 41typedef enum RunlevelType {
42 RUNLEVEL_UP,
43 RUNLEVEL_DOWN,
fc5df99e 44 RUNLEVEL_SYSINIT
09cd1ab1
LP		 45} RunlevelType;
46
47static const struct {
48 const char *path;
49 const char *target;
50 const RunlevelType type;
51} rcnd_table[] = {
9d25f5ed 52 /* Standard SysV runlevels for start-up */
514f4ef5 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 },
fbe9f3a9 58
cfe243e3 59 /* SUSE style boot.d */
fc5df99e 60 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
fbe9f3a9
LP		 61
62 /* Debian style rcS.d */
fc5df99e 63 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
9d25f5ed
LP		 64
65 /* Standard SysV runlevels for shutdown */
66 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
67 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
68
69 /* Note that the order here matters, as we read the
70 directories in this order, and we want to make sure that
71 sysv_start_priority is known when we first load the
72 unit. And that value we only know from S links. Hence
73 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 74};
75
09cd1ab1 76#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 77/* #define RUNLEVELS_DOWN "06" */
78/* #define RUNLEVELS_BOOT "bBsS" */
09cd1ab1 79
acbb0225 80static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 81 [SERVICE_DEAD] = UNIT_INACTIVE,
82 [SERVICE_START_PRE] = UNIT_ACTIVATING,
83 [SERVICE_START] = UNIT_ACTIVATING,
84 [SERVICE_START_POST] = UNIT_ACTIVATING,
85 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 86 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 87 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 88 [SERVICE_STOP] = UNIT_DEACTIVATING,
89 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
90 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
91 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
92 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
93 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
032ff4af 94 [SERVICE_MAINTENANCE] = UNIT_MAINTENANCE,
6124958c 95 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 96};
5cb5a6ff 97
a16e1123
LP		 98static void service_init(Unit *u) {
99 Service *s = SERVICE(u);
100
101 assert(u);
102 assert(u->meta.load_state == UNIT_STUB);
103
104 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
105 s->restart_usec = DEFAULT_RESTART_USEC;
106 s->timer_watch.type = WATCH_INVALID;
107 s->sysv_start_priority = -1;
108 s->socket_fd = -1;
109
110 exec_context_init(&s->exec_context);
111
112 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
113
114 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
115}
116
5e94833f
LP		 117static void service_unwatch_control_pid(Service *s) {
118 assert(s);
119
120 if (s->control_pid <= 0)
121 return;
122
123 unit_unwatch_pid(UNIT(s), s->control_pid);
124 s->control_pid = 0;
125}
126
127static void service_unwatch_main_pid(Service *s) {
128 assert(s);
129
130 if (s->main_pid <= 0)
131 return;
132
133 unit_unwatch_pid(UNIT(s), s->main_pid);
134 s->main_pid = 0;
135}
136
5925dd3c 137static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 138 pid_t ppid;
139
5925dd3c
LP		 140 assert(s);
141
142 if (pid <= 1)
143 return -EINVAL;
144
145 if (pid == getpid())
146 return -EINVAL;
147
e55224ca
LP		 148 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
149 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
150 s->meta.id, (unsigned long) pid);
151
5925dd3c
LP		 152 s->main_pid = pid;
153 s->main_pid_known = true;
154
b58b4116
LP		 155 exec_status_start(&s->main_exec_status, pid);
156
5925dd3c
LP		 157 return 0;
158}
159
4f2d528d
LP		 160static void service_close_socket_fd(Service *s) {
161 assert(s);
162
163 if (s->socket_fd < 0)
164 return;
165
166 close_nointr_nofail(s->socket_fd);
167 s->socket_fd = -1;
168}
169
6cf6bbc2
LP		 170static void service_connection_unref(Service *s) {
171 assert(s);
172
173 if (!s->socket)
174 return;
175
176 socket_connection_unref(s->socket);
177 s->socket = NULL;
178}
179
87f0e418
LP		 180static void service_done(Unit *u) {
181 Service *s = SERVICE(u);
44d8db9e
LP		 182
183 assert(s);
184
185 free(s->pid_file);
186 s->pid_file = NULL;
187
2c4104f0
LP		 188 free(s->sysv_path);
189 s->sysv_path = NULL;
190
8309400a
LP		 191 free(s->sysv_runlevels);
192 s->sysv_runlevels = NULL;
193
8c47c732
LP		 194 free(s->status_text);
195 s->status_text = NULL;
196
44d8db9e 197 exec_context_done(&s->exec_context);
e537352b 198 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 199 s->control_command = NULL;
200
201 /* This will leak a process, but at least no memory or any of
202 * our resources */
5e94833f
LP		 203 service_unwatch_main_pid(s);
204 service_unwatch_control_pid(s);
44d8db9e 205
05e343b7
LP		 206 if (s->bus_name) {
207 unit_unwatch_bus_name(UNIT(u), s->bus_name);
208 free(s->bus_name);
209 s->bus_name = NULL;
210 }
211
4f2d528d 212 service_close_socket_fd(s);
6cf6bbc2 213 service_connection_unref(s);
4f2d528d 214
acbb0225 215 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 216}
217
b7ccee3c
LP		 218static char *sysv_translate_name(const char *name) {
219 char *r;
220
221 if (!(r = new(char, strlen(name) + sizeof(".service"))))
222 return NULL;
223
224 if (startswith(name, "boot."))
225 /* Drop SuSE-style boot. prefix */
226 strcpy(stpcpy(r, name + 5), ".service");
227 else if (endswith(name, ".sh"))
228 /* Drop Debian-style .sh suffix */
229 strcpy(stpcpy(r, name) - 3, ".service");
230 else
231 /* Normal init scripts */
232 strcpy(stpcpy(r, name), ".service");
233
234 return r;
235}
236
237static int sysv_translate_facility(const char *name, char **_r) {
2c4104f0
LP		 238
239 static const char * const table[] = {
6464aa08 240 /* LSB defined facilities */
2c4104f0
LP		 241 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
242 "$network", SPECIAL_NETWORK_TARGET,
243 "$named", SPECIAL_NSS_LOOKUP_TARGET,
244 "$portmap", SPECIAL_RPCBIND_TARGET,
245 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
246 "$syslog", SPECIAL_SYSLOG_TARGET,
6464aa08
LP		 247 "$time", SPECIAL_RTC_SET_TARGET,
248
249 /* Debian extensions */
250 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
251 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
1e287fe3 252 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
2c4104f0
LP		 253 };
254
255 unsigned i;
256 char *r;
257
258 for (i = 0; i < ELEMENTSOF(table); i += 2)
259 if (streq(table[i], name)) {
260 if (!(r = strdup(table[i+1])))
261 return -ENOMEM;
262
263 goto finish;
264 }
265
266 if (*name == '$')
267 return 0;
268
b7ccee3c 269 if (!(r = sysv_translate_name(name)))
2c4104f0
LP		 270 return -ENOMEM;
271
272finish:
273
274 if (_r)
275 *_r = r;
276
277 return 1;
278}
279
56d748b4 280static int sysv_fix_order(Service *s) {
2c4104f0
LP		 281 Meta *other;
282 int r;
283
284 assert(s);
285
286 if (s->sysv_start_priority < 0)
287 return 0;
288
23a177ef
LP		 289 /* For each pair of services where at least one lacks a LSB
290 * header, we use the start priority value to order things. */
2c4104f0 291
4cd1fbcc 292 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 293 Service *t;
294 UnitDependency d;
eeaafddc 295 bool special_s, special_t;
2c4104f0
LP		 296
297 t = (Service*) other;
298
299 if (s == t)
300 continue;
301
302 if (t->sysv_start_priority < 0)
303 continue;
304
51a1a79d
LP		 305 /* If both units have modern headers we don't care
306 * about the priorities */
307 if ((!s->sysv_path || s->sysv_has_lsb) &&
308 (!t->sysv_path || t->sysv_has_lsb))
23a177ef
LP		 309 continue;
310
eeaafddc
LP		 311 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
312 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
313
314 if (special_t && !special_s)
315 d = UNIT_AFTER;
316 else if (special_s && !special_t)
317 d = UNIT_BEFORE;
318 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 319 d = UNIT_AFTER;
320 else if (t->sysv_start_priority > s->sysv_start_priority)
321 d = UNIT_BEFORE;
322 else
323 continue;
324
325 /* FIXME: Maybe we should compare the name here lexicographically? */
326
701cc384 327 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 328 return r;
329 }
330
331 return 0;
332}
333
334static ExecCommand *exec_command_new(const char *path, const char *arg1) {
335 ExecCommand *c;
336
337 if (!(c = new0(ExecCommand, 1)))
338 return NULL;
339
340 if (!(c->path = strdup(path))) {
341 free(c);
342 return NULL;
343 }
344
345 if (!(c->argv = strv_new(path, arg1, NULL))) {
346 free(c->path);
347 free(c);
348 return NULL;
349 }
350
351 return c;
352}
353
354static int sysv_exec_commands(Service *s) {
355 ExecCommand *c;
356
357 assert(s);
358 assert(s->sysv_path);
359
360 if (!(c = exec_command_new(s->sysv_path, "start")))
361 return -ENOMEM;
362 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
363
364 if (!(c = exec_command_new(s->sysv_path, "stop")))
365 return -ENOMEM;
366 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
367
368 if (!(c = exec_command_new(s->sysv_path, "reload")))
369 return -ENOMEM;
370 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
371
372 return 0;
373}
374
e537352b 375static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 376 FILE *f;
377 Unit *u;
378 unsigned line = 0;
379 int r;
380 enum {
381 NORMAL,
382 DESCRIPTION,
383 LSB,
384 LSB_DESCRIPTION
385 } state = NORMAL;
23a177ef
LP		 386
387 assert(s);
388 assert(path);
2c4104f0
LP		 389
390 u = UNIT(s);
391
392 if (!(f = fopen(path, "re"))) {
393 r = errno == ENOENT ? 0 : -errno;
394 goto finish;
395 }
396
2c4104f0
LP		 397 free(s->sysv_path);
398 if (!(s->sysv_path = strdup(path))) {
399 r = -ENOMEM;
400 goto finish;
401 }
402
403 while (!feof(f)) {
404 char l[LINE_MAX], *t;
405
406 if (!fgets(l, sizeof(l), f)) {
407 if (feof(f))
408 break;
409
410 r = -errno;
411 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
412 goto finish;
413 }
414
415 line++;
416
417 t = strstrip(l);
418 if (*t != '#')
419 continue;
420
421 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
422 state = LSB;
23a177ef 423 s->sysv_has_lsb = true;
2c4104f0
LP		 424 continue;
425 }
426
427 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
428 state = NORMAL;
429 continue;
430 }
431
432 t++;
433 t += strspn(t, WHITESPACE);
434
435 if (state == NORMAL) {
436
437 /* Try to parse Red Hat style chkconfig headers */
438
c2b35af6 439 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 440 int start_priority;
8309400a 441 char runlevels[16], *k;
2c4104f0
LP		 442
443 state = NORMAL;
444
8309400a
LP		 445 if (sscanf(t+10, "%15s %i %*i",
446 runlevels,
447 &start_priority) != 2) {
2c4104f0
LP		 448
449 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
450 continue;
451 }
452
fbe9f3a9
LP		 453 /* A start priority gathered from the
454 * symlink farms is preferred over the
455 * data from the LSB header. */
8309400a 456 if (start_priority < 0 || start_priority > 99)
2c4104f0 457 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 458 else if (s->sysv_start_priority < 0)
8309400a
LP		 459 s->sysv_start_priority = start_priority;
460
461 char_array_0(runlevels);
462 k = delete_chars(runlevels, WHITESPACE "-");
463
464 if (k[0]) {
465 char *d;
466
467 if (!(d = strdup(k))) {
468 r = -ENOMEM;
469 goto finish;
470 }
471
472 free(s->sysv_runlevels);
473 s->sysv_runlevels = d;
2c4104f0
LP		 474 }
475
ed4c1cc6
LP		 476 } else if (startswith_no_case(t, "description:") &&
477 !u->meta.description) {
2c4104f0
LP		 478
479 size_t k = strlen(t);
480 char *d;
481
482 if (t[k-1] == '\\') {
483 state = DESCRIPTION;
484 t[k-1] = 0;
485 }
486
487 if (!(d = strdup(strstrip(t+12)))) {
488 r = -ENOMEM;
489 goto finish;
490 }
491
492 free(u->meta.description);
493 u->meta.description = d;
494
c2b35af6 495 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 496
497 char *fn;
498
499 state = NORMAL;
500
501 fn = strstrip(t+8);
502 if (!path_is_absolute(fn)) {
503 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
504 continue;
505 }
506
507 if (!(fn = strdup(fn))) {
508 r = -ENOMEM;
509 goto finish;
510 }
511
512 free(s->pid_file);
513 s->pid_file = fn;
514 }
515
516 } else if (state == DESCRIPTION) {
517
518 /* Try to parse Red Hat style description
519 * continuation */
520
521 size_t k = strlen(t);
522 char *d;
523
524 if (t[k-1] == '\\')
525 t[k-1] = 0;
526 else
527 state = NORMAL;
528
529 assert(u->meta.description);
530 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
531 r = -ENOMEM;
532 goto finish;
533 }
534
535 free(u->meta.description);
536 u->meta.description = d;
537
538 } else if (state == LSB || state == LSB_DESCRIPTION) {
539
c2b35af6 540 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 541 char *i, *w;
542 size_t z;
543
544 state = LSB;
545
f60f22df 546 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 547 char *n, *m;
548
549 if (!(n = strndup(w, z))) {
550 r = -ENOMEM;
551 goto finish;
552 }
553
b7ccee3c 554 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 555 free(n);
556
557 if (r < 0)
558 goto finish;
559
560 if (r == 0)
561 continue;
562
bd77d0fc
LP		 563 if (unit_name_to_type(m) == UNIT_SERVICE)
564 r = unit_add_name(u, m);
9d25f5ed
LP		 565 else if (s->sysv_start_priority >= 0)
566 r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_WANTS, m, NULL, true);
2c966c03 567 else
9d25f5ed 568 r = unit_add_dependency_by_name_inverse(u, UNIT_AFTER, m, NULL, true);
bd77d0fc 569
2c4104f0
LP		 570 free(m);
571
572 if (r < 0)
573 goto finish;
574 }
575
c2b35af6
LP		 576 } else if (startswith_no_case(t, "Required-Start:") ||
577 startswith_no_case(t, "Should-Start:") ||
578 startswith_no_case(t, "X-Start-Before:") ||
579 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 580 char *i, *w;
581 size_t z;
582
583 state = LSB;
584
f60f22df 585 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 586 char *n, *m;
587
588 if (!(n = strndup(w, z))) {
589 r = -ENOMEM;
590 goto finish;
591 }
592
b7ccee3c 593 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 594 free(n);
595
596 if (r < 0)
597 goto finish;
598
599 if (r == 0)
600 continue;
601
c2b35af6 602 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 603 free(m);
604
605 if (r < 0)
606 goto finish;
607 }
c2b35af6 608 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 609 char *k, *d;
610
611 state = LSB;
612
613 k = delete_chars(t+14, WHITESPACE "-");
614
615 if (k[0] != 0) {
616 if (!(d = strdup(k))) {
617 r = -ENOMEM;
618 goto finish;
619 }
620
621 free(s->sysv_runlevels);
622 s->sysv_runlevels = d;
623 }
2c4104f0 624
ed4c1cc6
LP		 625 } else if (startswith_no_case(t, "Description:") &&
626 !u->meta.description) {
2c4104f0
LP		 627 char *d;
628
ed4c1cc6
LP		 629 /* We use the long description only if
630 * no short description is set. */
631
2c4104f0
LP		 632 state = LSB_DESCRIPTION;
633
634 if (!(d = strdup(strstrip(t+12)))) {
635 r = -ENOMEM;
636 goto finish;
637 }
638
639 free(u->meta.description);
640 u->meta.description = d;
641
ed4c1cc6 642 } else if (startswith_no_case(t, "Short-Description:")) {
2c4104f0
LP		 643 char *d;
644
2c4104f0
LP		 645 state = LSB;
646
647 if (!(d = strdup(strstrip(t+18)))) {
648 r = -ENOMEM;
649 goto finish;
650 }
651
7740296d 652 free(u->meta.description);
2c4104f0
LP		 653 u->meta.description = d;
654
723c83fd
LP		 655 } else if (startswith_no_case(t, "X-Interactive:")) {
656 int b;
657
658 if ((b = parse_boolean(strstrip(t+14))) < 0) {
659 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
660 continue;
661 }
662
663 if (b)
664 s->exec_context.std_input = EXEC_INPUT_TTY;
665 else
666 s->exec_context.std_input = EXEC_INPUT_NULL;
667
2c4104f0
LP		 668 } else if (state == LSB_DESCRIPTION) {
669
670 if (startswith(l, "#\t") || startswith(l, "# ")) {
671 char *d;
672
673 assert(u->meta.description);
674 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
675 r = -ENOMEM;
676 goto finish;
677 }
678
679 free(u->meta.description);
680 u->meta.description = d;
681 } else
682 state = LSB;
683 }
684 }
685 }
686
2c4104f0
LP		 687 if ((r = sysv_exec_commands(s)) < 0)
688 goto finish;
689
a40eb732 690 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 691 /* If there a runlevels configured for this service
692 * but none of the standard ones, then we assume this
693 * is some special kind of service (which might be
694 * needed for early boot) and don't create any links
695 * to it. */
696
a40eb732 697 s->meta.default_dependencies = false;
09cd1ab1 698
09cd1ab1
LP		 699 /* Don't timeout special services during boot (like fsck) */
700 s->timeout_usec = 0;
a40eb732 701 }
0fd030be 702
80876c20 703 /* Special setting for all SysV services */
1f48cf56 704 s->type = SERVICE_FORKING;
80876c20 705 s->valid_no_process = true;
1f48cf56 706 s->restart = SERVICE_ONCE;
acb591e4 707 s->exec_context.std_output = EXEC_OUTPUT_TTY;
2e22afe9 708 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 709
e537352b 710 u->meta.load_state = UNIT_LOADED;
23a177ef 711 r = 0;
2c4104f0
LP		 712
713finish:
714
715 if (f)
716 fclose(f);
717
718 return r;
719}
720
e537352b 721static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 722 char **p;
723
724 assert(s);
725 assert(name);
726
d017c6ca
LP		 727 /* For SysV services we strip the boot. or .sh
728 * prefixes/suffixes. */
729 if (startswith(name, "boot.") ||
730 endswith(name, ".sh.service"))
731 return -ENOENT;
732
4cd1fbcc 733 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 734 char *path;
735 int r;
736
737 if (asprintf(&path, "%s/%s", *p, name) < 0)
738 return -ENOMEM;
739
740 assert(endswith(path, ".service"));
741 path[strlen(path)-8] = 0;
742
e537352b 743 r = service_load_sysv_path(s, path);
fbe9f3a9 744
4cd1fbcc 745 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 746 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 747 strcat(path, ".sh");
748 r = service_load_sysv_path(s, path);
749 }
750
2c4104f0
LP		 751 free(path);
752
4cd1fbcc 753 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 754 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 755
756 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
757 return -ENOMEM;
758
759 path[strlen(path)-8] = 0;
760 r = service_load_sysv_path(s, path);
761 free(path);
762 }
763
23a177ef 764 if (r < 0)
2c4104f0 765 return r;
23a177ef 766
4cd1fbcc 767 if ((s->meta.load_state != UNIT_STUB))
23a177ef 768 break;
2c4104f0
LP		 769 }
770
771 return 0;
772}
773
e537352b 774static int service_load_sysv(Service *s) {
2c4104f0
LP		 775 const char *t;
776 Iterator i;
777 int r;
778
5cb5a6ff
LP		 779 assert(s);
780
781 /* Load service data from SysV init scripts, preferably with
782 * LSB headers ... */
783
4cd1fbcc 784 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 785 return 0;
786
4cd1fbcc 787 if ((t = s->meta.id))
e537352b 788 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 789 return r;
790
4cd1fbcc
LP		 791 if (s->meta.load_state == UNIT_STUB)
792 SET_FOREACH(t, s->meta.names, i) {
793 if (t == s->meta.id)
e537352b
LP		 794 continue;
795
796 if ((r == service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 797 return r;
798
4cd1fbcc 799 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 800 break;
801 }
2c4104f0
LP		 802
803 return 0;
5cb5a6ff
LP		 804}
805
05e343b7
LP		 806static int service_add_bus_name(Service *s) {
807 char *n;
808 int r;
809
810 assert(s);
811 assert(s->bus_name);
812
813 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
814 return 0;
815
816 r = unit_merge_by_name(UNIT(s), n);
817 free(n);
818
819 return r;
820}
821
243b1432
LP		 822static int service_verify(Service *s) {
823 assert(s);
824
4cd1fbcc 825 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 826 return 0;
827
828 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 829 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 830 return -EINVAL;
831 }
832
6cf6bbc2 833 if (s->exec_command[SERVICE_EXEC_START]->command_next) {
4cd1fbcc 834 log_error("%s has more than one ExecStart setting. Refusing.", s->meta.id);
6cf6bbc2
LP		 835 return -EINVAL;
836 }
837
05e343b7 838 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 839 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
840 return -EINVAL;
841 }
842
2e22afe9 843 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 844 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 845 return -EINVAL;
846 }
847
243b1432
LP		 848 return 0;
849}
850
a40eb732
LP		 851static int service_add_default_dependencies(Service *s) {
852 int r;
853
854 assert(s);
855
856 /* Add a number of automatic dependencies useful for the
857 * majority of services. */
858
859 /* First, pull in base system */
860 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
861
862 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
863 return r;
864
865 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
866
867 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
868 return r;
869 }
870
871 /* Second, activate normal shutdown */
872 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
873}
874
e537352b
LP		 875static int service_load(Unit *u) {
876 int r;
877 Service *s = SERVICE(u);
878
879 assert(s);
1e2e8133 880
5cb5a6ff 881 /* Load a .service file */
e537352b 882 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 883 return r;
884
bd77d0fc 885 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 886 if (u->meta.load_state == UNIT_STUB)
887 if ((r = service_load_sysv(s)) < 0)
23a177ef 888 return r;
d46de8a1 889
23a177ef 890 /* Still nothing found? Then let's give up */
e537352b 891 if (u->meta.load_state == UNIT_STUB)
23a177ef 892 return -ENOENT;
034c6ed7 893
23a177ef
LP		 894 /* We were able to load something, then let's add in the
895 * dropin directories. */
896 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 897 return r;
23a177ef
LP		 898
899 /* This is a new unit? Then let's add in some extras */
e537352b 900 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 901 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
902 return r;
903
904 if ((r = unit_add_default_cgroup(u)) < 0)
905 return r;
906
56d748b4 907 if ((r = sysv_fix_order(s)) < 0)
23a177ef 908 return r;
05e343b7
LP		 909
910 if (s->bus_name) {
911 if ((r = service_add_bus_name(s)) < 0)
912 return r;
913
914 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 915 return r;
05e343b7 916 }
c952c6ec
LP		 917
918 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
919 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 920
921 if (s->type == SERVICE_DBUS || s->bus_name)
922 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
923 return r;
924
925 if (s->meta.default_dependencies)
926 if ((r = service_add_default_dependencies(s)) < 0)
927 return r;
8e274523
LP		 928 }
929
243b1432 930 return service_verify(s);
034c6ed7
LP		 931}
932
87f0e418 933static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 934
5cb5a6ff 935 ServiceExecCommand c;
87f0e418 936 Service *s = SERVICE(u);
47be870b
LP		 937 const char *prefix2;
938 char *p2;
5cb5a6ff
LP		 939
940 assert(s);
941
47be870b
LP		 942 p2 = strappend(prefix, "\t");
943 prefix2 = p2 ? p2 : prefix;
44d8db9e 944
5cb5a6ff 945 fprintf(f,
81a2b7ce
LP		 946 "%sService State: %s\n"
947 "%sPermissionsStartOnly: %s\n"
8e274523 948 "%sRootDirectoryStartOnly: %s\n"
03d6ab85 949 "%sValidNoProcess: %s\n"
c952c6ec
LP		 950 "%sType: %s\n"
951 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 952 prefix, service_state_to_string(s->state),
953 prefix, yes_no(s->permissions_start_only),
8e274523 954 prefix, yes_no(s->root_directory_start_only),
03d6ab85 955 prefix, yes_no(s->valid_no_process),
c952c6ec
LP		 956 prefix, service_type_to_string(s->type),
957 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 958
70123e68
LP		 959 if (s->control_pid > 0)
960 fprintf(f,
bb00e604
LP		 961 "%sControl PID: %lu\n",
962 prefix, (unsigned long) s->control_pid);
70123e68
LP		 963
964 if (s->main_pid > 0)
965 fprintf(f,
bb00e604
LP		 966 "%sMain PID: %lu\n",
967 prefix, (unsigned long) s->main_pid);
70123e68 968
034c6ed7
LP		 969 if (s->pid_file)
970 fprintf(f,
971 "%sPIDFile: %s\n",
972 prefix, s->pid_file);
973
05e343b7
LP		 974 if (s->bus_name)
975 fprintf(f,
976 "%sBusName: %s\n"
977 "%sBus Name Good: %s\n",
978 prefix, s->bus_name,
979 prefix, yes_no(s->bus_name_good));
980
5cb5a6ff
LP		 981 exec_context_dump(&s->exec_context, f, prefix);
982
e537352b 983 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 984
44d8db9e
LP		 985 if (!s->exec_command[c])
986 continue;
987
40d50879 988 fprintf(f, "%s-> %s:\n",
94f04347 989 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 990
991 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 992 }
44d8db9e 993
2c4104f0
LP		 994 if (s->sysv_path)
995 fprintf(f,
23a177ef
LP		 996 "%sSysV Init Script Path: %s\n"
997 "%sSysV Init Script has LSB Header: %s\n",
998 prefix, s->sysv_path,
999 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 1000
1001 if (s->sysv_start_priority >= 0)
1002 fprintf(f,
23a177ef 1003 "%sSysVStartPriority: %i\n",
2c4104f0
LP		 1004 prefix, s->sysv_start_priority);
1005
8309400a
LP		 1006 if (s->sysv_runlevels)
1007 fprintf(f, "%sSysVRunLevels: %s\n",
1008 prefix, s->sysv_runlevels);
23a177ef 1009
8c47c732
LP		 1010 if (s->status_text)
1011 fprintf(f, "%sStatus Text: %s\n",
1012 prefix, s->status_text);
1013
47be870b 1014 free(p2);
5cb5a6ff
LP		 1015}
1016
034c6ed7
LP		 1017static int service_load_pid_file(Service *s) {
1018 char *k;
034c6ed7 1019 int r;
5925dd3c 1020 pid_t pid;
034c6ed7
LP		 1021
1022 assert(s);
1023
1024 if (s->main_pid_known)
1025 return 0;
1026
5e94833f
LP		 1027 assert(s->main_pid <= 0);
1028
034c6ed7
LP		 1029 if (!s->pid_file)
1030 return -ENOENT;
1031
1032 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1033 return r;
1034
5925dd3c
LP		 1035 r = parse_pid(k, &pid);
1036 free(k);
034c6ed7 1037
5925dd3c
LP		 1038 if (r < 0)
1039 return r;
406eaf93 1040
5925dd3c
LP		 1041 if (kill(pid, 0) < 0 && errno != EPERM) {
1042 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1043 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1044 return -ESRCH;
1045 }
1046
5925dd3c 1047 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1048 return r;
1049
5925dd3c
LP		 1050 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1051 /* FIXME: we need to do something here */
1052 return r;
034c6ed7
LP		 1053
1054 return 0;
1055}
1056
3e33402a
LP		 1057static int service_get_sockets(Service *s, Set **_set) {
1058 Set *set;
ceee3d82
LP		 1059 Iterator i;
1060 char *t;
3e33402a 1061 int r;
ceee3d82
LP		 1062
1063 assert(s);
3e33402a
LP		 1064 assert(_set);
1065
6cf6bbc2
LP		 1066 if (s->socket_fd >= 0)
1067 return 0;
1068
3e33402a
LP		 1069 /* Collects all Socket objects that belong to this
1070 * service. Note that a service might have multiple sockets
1071 * via multiple names. */
1072
1073 if (!(set = set_new(NULL, NULL)))
1074 return -ENOMEM;
ceee3d82 1075
4cd1fbcc 1076 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1077 char *k;
1078 Unit *p;
1079
1080 /* Look for all socket objects that go by any of our
1081 * units and collect their fds */
1082
3e33402a
LP		 1083 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1084 r = -ENOMEM;
1085 goto fail;
1086 }
ceee3d82 1087
4cd1fbcc 1088 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1089 free(k);
1090
8d567588
LP		 1091 if (!p)
1092 continue;
ceee3d82 1093
3e33402a
LP		 1094 if ((r = set_put(set, p)) < 0)
1095 goto fail;
ceee3d82
LP		 1096 }
1097
3e33402a
LP		 1098 *_set = set;
1099 return 0;
1100
1101fail:
1102 set_free(set);
1103 return r;
1104}
1105
e537352b 1106static int service_notify_sockets_dead(Service *s) {
3e33402a
LP		 1107 Iterator i;
1108 Set *set;
47be870b 1109 Socket *sock;
3e33402a
LP		 1110 int r;
1111
1112 assert(s);
1113
6cf6bbc2
LP		 1114 if (s->socket_fd >= 0)
1115 return 0;
1116
3e33402a 1117 /* Notifies all our sockets when we die */
3e33402a
LP		 1118 if ((r = service_get_sockets(s, &set)) < 0)
1119 return r;
1120
47be870b
LP		 1121 SET_FOREACH(sock, set, i)
1122 socket_notify_service_dead(sock);
3e33402a
LP		 1123
1124 set_free(set);
1125
ceee3d82
LP		 1126 return 0;
1127}
1128
034c6ed7
LP		 1129static void service_set_state(Service *s, ServiceState state) {
1130 ServiceState old_state;
5cb5a6ff
LP		 1131 assert(s);
1132
034c6ed7 1133 old_state = s->state;
5cb5a6ff 1134 s->state = state;
034c6ed7
LP		 1135
1136 if (state != SERVICE_START_PRE &&
1137 state != SERVICE_START &&
1138 state != SERVICE_START_POST &&
1139 state != SERVICE_RELOAD &&
1140 state != SERVICE_STOP &&
1141 state != SERVICE_STOP_SIGTERM &&
1142 state != SERVICE_STOP_SIGKILL &&
1143 state != SERVICE_STOP_POST &&
1144 state != SERVICE_FINAL_SIGTERM &&
1145 state != SERVICE_FINAL_SIGKILL &&
1146 state != SERVICE_AUTO_RESTART)
acbb0225 1147 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1148
7d55e835
LP		 1149 if (state != SERVICE_START &&
1150 state != SERVICE_START_POST &&
034c6ed7
LP		 1151 state != SERVICE_RUNNING &&
1152 state != SERVICE_RELOAD &&
1153 state != SERVICE_STOP &&
1154 state != SERVICE_STOP_SIGTERM &&
1155 state != SERVICE_STOP_SIGKILL)
5e94833f 1156 service_unwatch_main_pid(s);
034c6ed7
LP		 1157
1158 if (state != SERVICE_START_PRE &&
1159 state != SERVICE_START &&
1160 state != SERVICE_START_POST &&
1161 state != SERVICE_RELOAD &&
1162 state != SERVICE_STOP &&
1163 state != SERVICE_STOP_SIGTERM &&
1164 state != SERVICE_STOP_SIGKILL &&
1165 state != SERVICE_STOP_POST &&
1166 state != SERVICE_FINAL_SIGTERM &&
e537352b 1167 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1168 service_unwatch_control_pid(s);
034c6ed7 1169 s->control_command = NULL;
a16e1123 1170 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1171 }
034c6ed7 1172
ceee3d82
LP		 1173 if (state == SERVICE_DEAD ||
1174 state == SERVICE_STOP ||
1175 state == SERVICE_STOP_SIGTERM ||
1176 state == SERVICE_STOP_SIGKILL ||
1177 state == SERVICE_STOP_POST ||
1178 state == SERVICE_FINAL_SIGTERM ||
1179 state == SERVICE_FINAL_SIGKILL ||
18c78fb1 1180 state == SERVICE_MAINTENANCE ||
ceee3d82 1181 state == SERVICE_AUTO_RESTART)
e537352b 1182 service_notify_sockets_dead(s);
ceee3d82 1183
4f2d528d
LP		 1184 if (state != SERVICE_START_PRE &&
1185 state != SERVICE_START &&
6cf6bbc2
LP		 1186 state != SERVICE_START_POST &&
1187 state != SERVICE_RUNNING &&
1188 state != SERVICE_RELOAD &&
1189 state != SERVICE_STOP &&
1190 state != SERVICE_STOP_SIGTERM &&
1191 state != SERVICE_STOP_SIGKILL &&
1192 state != SERVICE_STOP_POST &&
1193 state != SERVICE_FINAL_SIGTERM &&
1194 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1195 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1196 service_close_socket_fd(s);
6cf6bbc2
LP		 1197 service_connection_unref(s);
1198 }
4f2d528d 1199
f6023656
LP		 1200 /* For the inactive states unit_notify() will trim the cgroup,
1201 * but for exit we have to do that ourselves... */
1202 if (state == SERVICE_EXITED)
1203 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1204
e537352b 1205 if (old_state != state)
4cd1fbcc 1206 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1207
1208 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1209}
1210
a16e1123
LP		 1211static int service_coldplug(Unit *u) {
1212 Service *s = SERVICE(u);
1213 int r;
1214
1215 assert(s);
1216 assert(s->state == SERVICE_DEAD);
1217
1218 if (s->deserialized_state != s->state) {
1219
1220 if (s->deserialized_state == SERVICE_START_PRE ||
1221 s->deserialized_state == SERVICE_START ||
1222 s->deserialized_state == SERVICE_START_POST ||
1223 s->deserialized_state == SERVICE_RELOAD ||
1224 s->deserialized_state == SERVICE_STOP ||
1225 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1226 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1227 s->deserialized_state == SERVICE_STOP_POST ||
1228 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1229 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1230 s->deserialized_state == SERVICE_AUTO_RESTART) {
1231
1232 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1233 usec_t k;
1234
1235 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1236
1237 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1238 return r;
1239 }
1240 }
a16e1123
LP		 1241
1242 if ((s->deserialized_state == SERVICE_START &&
1243 (s->type == SERVICE_FORKING ||
8c47c732
LP		 1244 s->type == SERVICE_DBUS ||
1245 s->type == SERVICE_FINISH ||
1246 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1247 s->deserialized_state == SERVICE_START_POST ||
1248 s->deserialized_state == SERVICE_RUNNING ||
1249 s->deserialized_state == SERVICE_RELOAD ||
1250 s->deserialized_state == SERVICE_STOP ||
1251 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1252 s->deserialized_state == SERVICE_STOP_SIGKILL)
1253 if (s->main_pid > 0)
1254 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1255 return r;
1256
1257 if (s->deserialized_state == SERVICE_START_PRE ||
1258 s->deserialized_state == SERVICE_START ||
1259 s->deserialized_state == SERVICE_START_POST ||
1260 s->deserialized_state == SERVICE_RELOAD ||
1261 s->deserialized_state == SERVICE_STOP ||
1262 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1263 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1264 s->deserialized_state == SERVICE_STOP_POST ||
1265 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1266 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1267 if (s->control_pid > 0)
1268 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1269 return r;
1270
1271 service_set_state(s, s->deserialized_state);
1272 }
1273
1274 return 0;
1275}
1276
44d8db9e
LP		 1277static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1278 Iterator i;
1279 int r;
1280 int *rfds = NULL;
1281 unsigned rn_fds = 0;
3e33402a 1282 Set *set;
47be870b 1283 Socket *sock;
44d8db9e
LP		 1284
1285 assert(s);
1286 assert(fds);
1287 assert(n_fds);
1288
6cf6bbc2
LP		 1289 if (s->socket_fd >= 0)
1290 return 0;
1291
3e33402a
LP		 1292 if ((r = service_get_sockets(s, &set)) < 0)
1293 return r;
1294
47be870b 1295 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1296 int *cfds;
1297 unsigned cn_fds;
1298
47be870b 1299 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1300 goto fail;
1301
1302 if (!cfds)
1303 continue;
1304
1305 if (!rfds) {
1306 rfds = cfds;
1307 rn_fds = cn_fds;
1308 } else {
1309 int *t;
1310
1311 if (!(t = new(int, rn_fds+cn_fds))) {
1312 free(cfds);
1313 r = -ENOMEM;
1314 goto fail;
1315 }
1316
1317 memcpy(t, rfds, rn_fds);
1318 memcpy(t+rn_fds, cfds, cn_fds);
1319 free(rfds);
1320 free(cfds);
1321
1322 rfds = t;
1323 rn_fds = rn_fds+cn_fds;
1324 }
1325 }
1326
1327 *fds = rfds;
1328 *n_fds = rn_fds;
3e33402a
LP		 1329
1330 set_free(set);
1331
44d8db9e
LP		 1332 return 0;
1333
1334fail:
3e33402a 1335 set_free(set);
44d8db9e 1336 free(rfds);
3e33402a 1337
44d8db9e
LP		 1338 return r;
1339}
1340
81a2b7ce
LP		 1341static int service_spawn(
1342 Service *s,
1343 ExecCommand *c,
1344 bool timeout,
1345 bool pass_fds,
1346 bool apply_permissions,
1347 bool apply_chroot,
1e3ad081 1348 bool apply_tty_stdin,
c952c6ec 1349 bool set_notify_socket,
81a2b7ce
LP		 1350 pid_t *_pid) {
1351
034c6ed7
LP		 1352 pid_t pid;
1353 int r;
6cf6bbc2 1354 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1355 unsigned n_fds = 0, n_env = 0;
1356 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1357
1358 assert(s);
1359 assert(c);
1360 assert(_pid);
1361
6cf6bbc2
LP		 1362 if (pass_fds ||
1363 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1364 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1365 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1366
4f2d528d
LP		 1367 if (s->socket_fd >= 0) {
1368 fds = &s->socket_fd;
1369 n_fds = 1;
6cf6bbc2
LP		 1370 } else {
1371 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1372 goto fail;
1373
1374 fds = fdsbuf;
1375 }
4f2d528d 1376 }
44d8db9e 1377
e558336f 1378 if (timeout && s->timeout_usec) {
acbb0225 1379 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1380 goto fail;
1381 } else
acbb0225 1382 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1383
9e2f7c11
LP		 1384 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1385 r = -ENOMEM;
1386 goto fail;
1387 }
1388
2105e76a
LP		 1389 if (!(our_env = new0(char*, 3))) {
1390 r = -ENOMEM;
1391 goto fail;
1392 }
c952c6ec 1393
2105e76a
LP		 1394 if (set_notify_socket)
1395 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1396 r = -ENOMEM;
1397 goto fail;
1398 }
1399
2105e76a
LP		 1400 if (s->main_pid > 0)
1401 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1402 r = -ENOMEM;
1403 goto fail;
1404 }
2105e76a
LP		 1405
1406 if (!(final_env = strv_env_merge(2,
1407 s->meta.manager->environment,
1408 our_env,
1409 NULL))) {
1410 r = -ENOMEM;
1411 goto fail;
1412 }
c952c6ec 1413
9e2f7c11
LP		 1414 r = exec_spawn(c,
1415 argv,
1416 &s->exec_context,
1417 fds, n_fds,
2105e76a 1418 final_env,
9e2f7c11
LP		 1419 apply_permissions,
1420 apply_chroot,
1e3ad081 1421 apply_tty_stdin,
4cd1fbcc
LP		 1422 s->meta.manager->confirm_spawn,
1423 s->meta.cgroup_bondings,
9e2f7c11
LP		 1424 &pid);
1425
9e2f7c11 1426 if (r < 0)
034c6ed7
LP		 1427 goto fail;
1428
4f2d528d 1429
87f0e418 1430 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1431 /* FIXME: we need to do something here */
1432 goto fail;
1433
2105e76a
LP		 1434 free(fdsbuf);
1435 strv_free(argv);
1436 strv_free(our_env);
1437 strv_free(final_env);
1438
034c6ed7
LP		 1439 *_pid = pid;
1440
5cb5a6ff 1441 return 0;
034c6ed7
LP		 1442
1443fail:
2105e76a 1444 free(fdsbuf);
c952c6ec 1445 strv_free(argv);
2105e76a
LP		 1446 strv_free(our_env);
1447 strv_free(final_env);
c952c6ec 1448
034c6ed7 1449 if (timeout)
acbb0225 1450 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1451
1452 return r;
1453}
1454
80876c20
LP		 1455static int main_pid_good(Service *s) {
1456 assert(s);
1457
1458 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1459 * don't know */
1460
1461 /* If we know the pid file, then lets just check if it is
1462 * still valid */
1463 if (s->main_pid_known)
1464 return s->main_pid > 0;
1465
1466 /* We don't know the pid */
1467 return -EAGAIN;
1468}
1469
1470static int control_pid_good(Service *s) {
1471 assert(s);
1472
1473 return s->control_pid > 0;
1474}
1475
1476static int cgroup_good(Service *s) {
1477 int r;
1478
1479 assert(s);
1480
4cd1fbcc 1481 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1482 return r;
1483
1484 return !r;
1485}
1486
034c6ed7
LP		 1487static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1488 int r;
1489 assert(s);
1490
1491 if (!success)
1492 s->failure = true;
1493
1494 if (allow_restart &&
3a762661 1495 s->allow_restart &&
034c6ed7
LP		 1496 (s->restart == SERVICE_RESTART_ALWAYS ||
1497 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1498
acbb0225 1499 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1500 goto fail;
1501
1502 service_set_state(s, SERVICE_AUTO_RESTART);
1503 } else
18c78fb1 1504 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
034c6ed7
LP		 1505
1506 return;
1507
1508fail:
4cd1fbcc 1509 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1510 service_enter_dead(s, false, false);
1511}
1512
1513static void service_enter_signal(Service *s, ServiceState state, bool success);
1514
1515static void service_enter_stop_post(Service *s, bool success) {
1516 int r;
1517 assert(s);
1518
1519 if (!success)
1520 s->failure = true;
1521
5e94833f
LP		 1522 service_unwatch_control_pid(s);
1523
a16e1123 1524 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1525 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1526 if ((r = service_spawn(s,
1527 s->control_command,
1528 true,
1529 false,
1530 !s->permissions_start_only,
1531 !s->root_directory_start_only,
1e3ad081 1532 true,
c952c6ec 1533 false,
81a2b7ce 1534 &s->control_pid)) < 0)
034c6ed7
LP		 1535 goto fail;
1536
d6ea93e3 1537
80876c20
LP		 1538 service_set_state(s, SERVICE_STOP_POST);
1539 } else
1540 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1541
1542 return;
1543
1544fail:
4cd1fbcc 1545 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1546 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1547}
1548
1549static void service_enter_signal(Service *s, ServiceState state, bool success) {
1550 int r;
1551 bool sent = false;
1552
1553 assert(s);
1554
1555 if (!success)
1556 s->failure = true;
1557
2e22afe9
LP		 1558 if (s->exec_context.kill_mode != KILL_NONE) {
1559 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1560
2e22afe9 1561 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
034c6ed7 1562
4cd1fbcc 1563 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
50159e6a
LP		 1564 if (r != -EAGAIN && r != -ESRCH)
1565 goto fail;
1566 } else
034c6ed7
LP		 1567 sent = true;
1568 }
1569
50159e6a
LP		 1570 if (!sent) {
1571 r = 0;
80876c20 1572
50159e6a 1573 if (s->main_pid > 0) {
2e22afe9 1574 if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
50159e6a
LP		 1575 r = -errno;
1576 else
1577 sent = true;
1578 }
1579
1580 if (s->control_pid > 0) {
2e22afe9 1581 if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
50159e6a
LP		 1582 r = -errno;
1583 else
1584 sent = true;
1585 }
1586
1587 if (r < 0)
1588 goto fail;
1589 }
d6ea93e3 1590 }
034c6ed7 1591
e93bc5a6 1592 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
e558336f
LP		 1593 if (s->timeout_usec > 0)
1594 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1595 goto fail;
d6ea93e3 1596
80876c20
LP		 1597 service_set_state(s, state);
1598 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1599 service_enter_stop_post(s, true);
1600 else
034c6ed7
LP		 1601 service_enter_dead(s, true, true);
1602
1603 return;
1604
1605fail:
4cd1fbcc 1606 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1607
80876c20 1608 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1609 service_enter_stop_post(s, false);
1610 else
1611 service_enter_dead(s, false, true);
1612}
1613
1614static void service_enter_stop(Service *s, bool success) {
1615 int r;
5925dd3c 1616
034c6ed7
LP		 1617 assert(s);
1618
1619 if (!success)
1620 s->failure = true;
1621
5e94833f
LP		 1622 service_unwatch_control_pid(s);
1623
a16e1123 1624 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1625 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1626 if ((r = service_spawn(s,
1627 s->control_command,
1628 true,
1629 false,
1630 !s->permissions_start_only,
1631 !s->root_directory_start_only,
c952c6ec 1632 false,
1e3ad081 1633 false,
e55224ca 1634 &s->control_pid)) < 0)
034c6ed7
LP		 1635 goto fail;
1636
80876c20
LP		 1637 service_set_state(s, SERVICE_STOP);
1638 } else
034c6ed7
LP		 1639 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1640
1641 return;
1642
1643fail:
4cd1fbcc 1644 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1645 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1646}
1647
80876c20 1648static void service_enter_running(Service *s, bool success) {
4eab639f 1649 int main_pid_ok, cgroup_ok;
80876c20
LP		 1650 assert(s);
1651
1652 if (!success)
1653 s->failure = true;
1654
4eab639f
LP		 1655 main_pid_ok = main_pid_good(s);
1656 cgroup_ok = cgroup_good(s);
1657
1658 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1659 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20
LP		 1660 service_set_state(s, SERVICE_RUNNING);
1661 else if (s->valid_no_process)
1662 service_set_state(s, SERVICE_EXITED);
1663 else
1664 service_enter_stop(s, true);
1665}
1666
034c6ed7
LP		 1667static void service_enter_start_post(Service *s) {
1668 int r;
1669 assert(s);
1670
5e94833f
LP		 1671 service_unwatch_control_pid(s);
1672
a16e1123 1673 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1674 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1675 if ((r = service_spawn(s,
1676 s->control_command,
1677 true,
1678 false,
1679 !s->permissions_start_only,
1680 !s->root_directory_start_only,
c952c6ec 1681 false,
1e3ad081 1682 false,
e55224ca 1683 &s->control_pid)) < 0)
034c6ed7
LP		 1684 goto fail;
1685
80876c20
LP		 1686 service_set_state(s, SERVICE_START_POST);
1687 } else
1688 service_enter_running(s, true);
034c6ed7
LP		 1689
1690 return;
1691
1692fail:
4cd1fbcc 1693 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1694 service_enter_stop(s, false);
1695}
1696
1697static void service_enter_start(Service *s) {
1698 pid_t pid;
1699 int r;
1700
1701 assert(s);
1702
1703 assert(s->exec_command[SERVICE_EXEC_START]);
1704 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1705
80876c20
LP		 1706 if (s->type == SERVICE_FORKING)
1707 service_unwatch_control_pid(s);
1708 else
1709 service_unwatch_main_pid(s);
1710
81a2b7ce
LP		 1711 if ((r = service_spawn(s,
1712 s->exec_command[SERVICE_EXEC_START],
8c47c732 1713 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1714 true,
1715 true,
1716 true,
1e3ad081 1717 true,
c952c6ec 1718 s->notify_access != NOTIFY_NONE,
81a2b7ce 1719 &pid)) < 0)
034c6ed7
LP		 1720 goto fail;
1721
1722 if (s->type == SERVICE_SIMPLE) {
1723 /* For simple services we immediately start
1724 * the START_POST binaries. */
1725
5925dd3c 1726 service_set_main_pid(s, pid);
034c6ed7
LP		 1727 service_enter_start_post(s);
1728
1729 } else if (s->type == SERVICE_FORKING) {
1730
1731 /* For forking services we wait until the start
1732 * process exited. */
1733
a16e1123 1734 s->control_command_id = SERVICE_EXEC_START;
034c6ed7 1735 s->control_command = s->exec_command[SERVICE_EXEC_START];
5925dd3c 1736
e55224ca 1737 s->control_pid = pid;
80876c20
LP		 1738 service_set_state(s, SERVICE_START);
1739
05e343b7 1740 } else if (s->type == SERVICE_FINISH ||
8c47c732
LP		 1741 s->type == SERVICE_DBUS ||
1742 s->type == SERVICE_NOTIFY) {
7d55e835
LP		 1743
1744 /* For finishing services we wait until the start
1745 * process exited, too, but it is our main process. */
1746
05e343b7 1747 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1748 * but wait for the bus name to appear on the
1749 * bus. Notify services are similar. */
05e343b7 1750
5925dd3c 1751 service_set_main_pid(s, pid);
80876c20 1752 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1753 } else
1754 assert_not_reached("Unknown service type");
1755
1756 return;
1757
1758fail:
4cd1fbcc 1759 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1760 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1761}
1762
1763static void service_enter_start_pre(Service *s) {
1764 int r;
1765
1766 assert(s);
1767
5e94833f
LP		 1768 service_unwatch_control_pid(s);
1769
a16e1123 1770 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1771 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1772 if ((r = service_spawn(s,
1773 s->control_command,
1774 true,
1775 false,
1776 !s->permissions_start_only,
1777 !s->root_directory_start_only,
1e3ad081 1778 true,
c952c6ec 1779 false,
e55224ca 1780 &s->control_pid)) < 0)
034c6ed7
LP		 1781 goto fail;
1782
80876c20
LP		 1783 service_set_state(s, SERVICE_START_PRE);
1784 } else
034c6ed7
LP		 1785 service_enter_start(s);
1786
1787 return;
1788
1789fail:
4cd1fbcc 1790 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1791 service_enter_dead(s, false, true);
1792}
1793
1794static void service_enter_restart(Service *s) {
1795 int r;
398ef8ba
LP		 1796 DBusError error;
1797
034c6ed7 1798 assert(s);
398ef8ba 1799 dbus_error_init(&error);
034c6ed7 1800
9ea9a0c8
LP		 1801 service_enter_dead(s, true, false);
1802
398ef8ba 1803 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL, NULL)) < 0)
034c6ed7
LP		 1804 goto fail;
1805
4cd1fbcc 1806 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 1807 return;
1808
1809fail:
398ef8ba 1810 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 1811 service_enter_dead(s, false, false);
398ef8ba
LP		 1812
1813 dbus_error_free(&error);
034c6ed7
LP		 1814}
1815
1816static void service_enter_reload(Service *s) {
1817 int r;
1818
1819 assert(s);
1820
5e94833f
LP		 1821 service_unwatch_control_pid(s);
1822
a16e1123 1823 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 1824 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
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,
1e3ad081 1832 false,
e55224ca 1833 &s->control_pid)) < 0)
034c6ed7
LP		 1834 goto fail;
1835
80876c20
LP		 1836 service_set_state(s, SERVICE_RELOAD);
1837 } else
1838 service_enter_running(s, true);
034c6ed7
LP		 1839
1840 return;
1841
1842fail:
4cd1fbcc 1843 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1844 service_enter_stop(s, false);
1845}
1846
1847static void service_run_next(Service *s, bool success) {
1848 int r;
1849
1850 assert(s);
1851 assert(s->control_command);
1852 assert(s->control_command->command_next);
1853
1854 if (!success)
1855 s->failure = true;
1856
1857 s->control_command = s->control_command->command_next;
1858
5e94833f
LP		 1859 service_unwatch_control_pid(s);
1860
81a2b7ce
LP		 1861 if ((r = service_spawn(s,
1862 s->control_command,
1863 true,
1864 false,
1865 !s->permissions_start_only,
1866 !s->root_directory_start_only,
5830833f
LP		 1867 s->control_command_id == SERVICE_EXEC_START_PRE ||
1868 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 1869 false,
e55224ca 1870 &s->control_pid)) < 0)
034c6ed7
LP		 1871 goto fail;
1872
1873 return;
1874
1875fail:
4cd1fbcc 1876 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
034c6ed7 1877
80876c20
LP		 1878 if (s->state == SERVICE_START_PRE)
1879 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1880 else if (s->state == SERVICE_STOP)
1881 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 1882 else if (s->state == SERVICE_STOP_POST)
1883 service_enter_dead(s, false, true);
1884 else
1885 service_enter_stop(s, false);
5cb5a6ff
LP		 1886}
1887
87f0e418
LP		 1888static int service_start(Unit *u) {
1889 Service *s = SERVICE(u);
5cb5a6ff
LP		 1890
1891 assert(s);
1892
034c6ed7
LP		 1893 /* We cannot fulfill this request right now, try again later
1894 * please! */
1895 if (s->state == SERVICE_STOP ||
1896 s->state == SERVICE_STOP_SIGTERM ||
1897 s->state == SERVICE_STOP_SIGKILL ||
1898 s->state == SERVICE_STOP_POST ||
1899 s->state == SERVICE_FINAL_SIGTERM ||
1900 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 1901 return -EAGAIN;
1902
034c6ed7
LP		 1903 /* Already on it! */
1904 if (s->state == SERVICE_START_PRE ||
1905 s->state == SERVICE_START ||
1906 s->state == SERVICE_START_POST)
1907 return 0;
1908
18c78fb1 1909 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 1910
1e2e8133
LP		 1911 /* Make sure we don't enter a busy loop of some kind. */
1912 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 1913 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 1914 return -ECANCELED;
1e2e8133
LP		 1915 }
1916
cac6f7c8
LP		 1917 if ((s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1918 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1919 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) &&
1920 s->socket_fd < 0) {
1921 log_warning("%s can only be started with a per-connection socket.", u->meta.id);
1922 return -EINVAL;
1923 }
1924
034c6ed7
LP		 1925 s->failure = false;
1926 s->main_pid_known = false;
3a762661 1927 s->allow_restart = true;
034c6ed7
LP		 1928
1929 service_enter_start_pre(s);
1930 return 0;
5cb5a6ff
LP		 1931}
1932
87f0e418
LP		 1933static int service_stop(Unit *u) {
1934 Service *s = SERVICE(u);
5cb5a6ff
LP		 1935
1936 assert(s);
1937
3f6c78dc
LP		 1938 /* This is a user request, so don't do restarts on this
1939 * shutdown. */
1940 s->allow_restart = false;
034c6ed7 1941
e537352b
LP		 1942 /* Already on it */
1943 if (s->state == SERVICE_STOP ||
1944 s->state == SERVICE_STOP_SIGTERM ||
1945 s->state == SERVICE_STOP_SIGKILL ||
1946 s->state == SERVICE_STOP_POST ||
1947 s->state == SERVICE_FINAL_SIGTERM ||
1948 s->state == SERVICE_FINAL_SIGKILL)
1949 return 0;
1950
3f6c78dc 1951 /* Don't allow a restart */
034c6ed7
LP		 1952 if (s->state == SERVICE_AUTO_RESTART) {
1953 service_set_state(s, SERVICE_DEAD);
1954 return 0;
1955 }
1956
3f6c78dc
LP		 1957 /* If there's already something running we go directly into
1958 * kill mode. */
1959 if (s->state == SERVICE_START_PRE ||
1960 s->state == SERVICE_START ||
1961 s->state == SERVICE_START_POST ||
1962 s->state == SERVICE_RELOAD) {
1963 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1964 return 0;
1965 }
5cb5a6ff 1966
3f6c78dc
LP		 1967 assert(s->state == SERVICE_RUNNING ||
1968 s->state == SERVICE_EXITED);
3a762661 1969
034c6ed7 1970 service_enter_stop(s, true);
5cb5a6ff
LP		 1971 return 0;
1972}
1973
87f0e418
LP		 1974static int service_reload(Unit *u) {
1975 Service *s = SERVICE(u);
034c6ed7
LP		 1976
1977 assert(s);
1978
80876c20 1979 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 1980
1981 service_enter_reload(s);
5cb5a6ff
LP		 1982 return 0;
1983}
1984
87f0e418
LP		 1985static bool service_can_reload(Unit *u) {
1986 Service *s = SERVICE(u);
034c6ed7
LP		 1987
1988 assert(s);
1989
1990 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1991}
1992
a16e1123
LP		 1993static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1994 Service *s = SERVICE(u);
1995
1996 assert(u);
1997 assert(f);
1998 assert(fds);
1999
2000 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2001 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2002
2003 if (s->control_pid > 0)
5925dd3c 2004 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2005
5925dd3c
LP		 2006 if (s->main_pid_known && s->main_pid > 0)
2007 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2008
2009 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2010
3a2776bc
LP		 2011 if (s->status_text)
2012 unit_serialize_item(u, f, "status-text", s->status_text);
2013
a16e1123
LP		 2014 /* There's a minor uncleanliness here: if there are multiple
2015 * commands attached here, we will start from the first one
2016 * again */
2017 if (s->control_command_id >= 0)
825636e5 2018 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2019
2020 if (s->socket_fd >= 0) {
2021 int copy;
2022
2023 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2024 return copy;
2025
2026 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2027 }
2028
ecdbca40
LP		 2029 if (s->main_exec_status.pid > 0) {
2030 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2031
2032 if (s->main_exec_status.start_timestamp.realtime > 0) {
2033 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
2034 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2035
2036 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2037 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2038 }
2039
2040 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2041 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2042 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2043 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2044 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2045
2046 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2047 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2048 }
2049 }
2050
a16e1123
LP		 2051 return 0;
2052}
2053
2054static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2055 Service *s = SERVICE(u);
2056 int r;
2057
2058 assert(u);
2059 assert(key);
2060 assert(value);
2061 assert(fds);
2062
2063 if (streq(key, "state")) {
2064 ServiceState state;
2065
2066 if ((state = service_state_from_string(value)) < 0)
2067 log_debug("Failed to parse state value %s", value);
2068 else
2069 s->deserialized_state = state;
2070 } else if (streq(key, "failure")) {
2071 int b;
2072
2073 if ((b = parse_boolean(value)) < 0)
2074 log_debug("Failed to parse failure value %s", value);
2075 else
2076 s->failure = b || s->failure;
2077 } else if (streq(key, "control-pid")) {
5925dd3c 2078 pid_t pid;
a16e1123 2079
5925dd3c 2080 if ((r = parse_pid(value, &pid)) < 0)
a16e1123
LP		 2081 log_debug("Failed to parse control-pid value %s", value);
2082 else
e55224ca 2083 s->control_pid = pid;
a16e1123 2084 } else if (streq(key, "main-pid")) {
5925dd3c 2085 pid_t pid;
a16e1123 2086
5925dd3c 2087 if ((r = parse_pid(value, &pid)) < 0)
a16e1123
LP		 2088 log_debug("Failed to parse main-pid value %s", value);
2089 else
5925dd3c 2090 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2091 } else if (streq(key, "main-pid-known")) {
2092 int b;
2093
2094 if ((b = parse_boolean(value)) < 0)
2095 log_debug("Failed to parse main-pid-known value %s", value);
2096 else
2097 s->main_pid_known = b;
3a2776bc
LP		 2098 } else if (streq(key, "status-text")) {
2099 char *t;
2100
2101 if ((t = strdup(value))) {
2102 free(s->status_text);
2103 s->status_text = t;
2104 }
2105
a16e1123
LP		 2106 } else if (streq(key, "control-command")) {
2107 ServiceExecCommand id;
2108
2109 if ((id = service_exec_command_from_string(value)) < 0)
2110 log_debug("Failed to parse exec-command value %s", value);
2111 else {
2112 s->control_command_id = id;
2113 s->control_command = s->exec_command[id];
2114 }
2115 } else if (streq(key, "socket-fd")) {
2116 int fd;
2117
2118 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2119 log_debug("Failed to parse socket-fd value %s", value);
2120 else {
2121
2122 if (s->socket_fd >= 0)
2123 close_nointr_nofail(s->socket_fd);
2124 s->socket_fd = fdset_remove(fds, fd);
2125 }
ecdbca40
LP		 2126 } else if (streq(key, "main-exec-status-pid")) {
2127 pid_t pid;
2128
2129 if ((r = parse_pid(value, &pid)) < 0)
2130 log_debug("Failed to parse main-exec-status-pid value %s", value);
2131 else
2132 s->main_exec_status.pid = pid;
2133 } else if (streq(key, "main-exec-status-code")) {
2134 int i;
2135
2136 if ((r = safe_atoi(value, &i)) < 0)
2137 log_debug("Failed to parse main-exec-status-code value %s", value);
2138 else
2139 s->main_exec_status.code = i;
2140 } else if (streq(key, "main-exec-status-status")) {
2141 int i;
2142
2143 if ((r = safe_atoi(value, &i)) < 0)
2144 log_debug("Failed to parse main-exec-status-status value %s", value);
2145 else
2146 s->main_exec_status.status = i;
2147 } else if (streq(key, "main-exec-status-start-realtime")) {
2148 uint64_t k;
2149
af2ab1f9 2150 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2151 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2152 else
2153 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2154 } else if (streq(key, "main-exec-status-start-monotonic")) {
2155 uint64_t k;
2156
af2ab1f9 2157 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2158 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2159 else
2160 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2161 } else if (streq(key, "main-exec-status-exit-realtime")) {
2162 uint64_t k;
2163
af2ab1f9 2164 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2165 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2166 else
2167 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2168 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2169 uint64_t k;
2170
af2ab1f9 2171 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2172 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2173 else
2174 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2175 } else
2176 log_debug("Unknown serialization key '%s'", key);
2177
2178 return 0;
2179}
2180
87f0e418
LP		 2181static UnitActiveState service_active_state(Unit *u) {
2182 assert(u);
5cb5a6ff 2183
acbb0225 2184 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2185}
2186
10a94420
LP		 2187static const char *service_sub_state_to_string(Unit *u) {
2188 assert(u);
2189
2190 return service_state_to_string(SERVICE(u)->state);
2191}
2192
701cc384
LP		 2193static bool service_check_gc(Unit *u) {
2194 Service *s = SERVICE(u);
2195
2196 assert(s);
2197
2198 return !!s->sysv_path;
2199}
2200
2201static bool service_check_snapshot(Unit *u) {
2202 Service *s = SERVICE(u);
2203
2204 assert(s);
2205
2206 return !s->got_socket_fd;
2207}
2208
87f0e418
LP		 2209static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2210 Service *s = SERVICE(u);
034c6ed7 2211 bool success;
5cb5a6ff
LP		 2212
2213 assert(s);
034c6ed7
LP		 2214 assert(pid >= 0);
2215
cb8a8f78 2216 success = is_clean_exit(code, status);
034c6ed7
LP		 2217
2218 if (s->main_pid == pid) {
2219
b58b4116 2220 exec_status_exit(&s->main_exec_status, pid, code, status);
034c6ed7
LP		 2221 s->main_pid = 0;
2222
8c47c732 2223 if (s->type != SERVICE_FORKING) {
034c6ed7
LP		 2224 assert(s->exec_command[SERVICE_EXEC_START]);
2225 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
b708e7ce
LP		 2226
2227 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2228 success = true;
034c6ed7
LP		 2229 }
2230
92abbefb
LP		 2231 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2232 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2233 s->failure = s->failure || !success;
034c6ed7
LP		 2234
2235 /* The service exited, so the service is officially
2236 * gone. */
2237
2238 switch (s->state) {
2239
2240 case SERVICE_START_POST:
2241 case SERVICE_RELOAD:
2242 case SERVICE_STOP:
2243 /* Need to wait until the operation is
2244 * done */
2245 break;
2246
7d55e835 2247 case SERVICE_START:
c4653a4d
LP		 2248 if (s->type == SERVICE_FINISH) {
2249 /* This was our main goal, so let's go on */
2250 if (success)
2251 service_enter_start_post(s);
2252 else
2253 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2254 break;
2255 } else {
8c47c732 2256 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2257
c4653a4d
LP		 2258 /* Fall through */
2259 }
7d55e835 2260
034c6ed7 2261 case SERVICE_RUNNING:
80876c20 2262 service_enter_running(s, success);
034c6ed7
LP		 2263 break;
2264
2265 case SERVICE_STOP_SIGTERM:
2266 case SERVICE_STOP_SIGKILL:
2267
2268 if (!control_pid_good(s))
2269 service_enter_stop_post(s, success);
5cb5a6ff 2270
034c6ed7
LP		 2271 /* If there is still a control process, wait for that first */
2272 break;
5cb5a6ff 2273
034c6ed7
LP		 2274 default:
2275 assert_not_reached("Uh, main process died at wrong time.");
2276 }
5cb5a6ff 2277
034c6ed7 2278 } else if (s->control_pid == pid) {
034c6ed7 2279
b708e7ce 2280 if (s->control_command) {
b58b4116 2281 exec_status_exit(&s->control_command->exec_status, pid, code, status);
a16e1123 2282
b708e7ce
LP		 2283 if (s->control_command->ignore)
2284 success = true;
2285 }
2286
034c6ed7
LP		 2287 s->control_pid = 0;
2288
92abbefb
LP		 2289 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2290 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2291 s->failure = s->failure || !success;
034c6ed7
LP		 2292
2293 /* If we are shutting things down anyway we
2294 * don't care about failing commands. */
2295
a16e1123 2296 if (s->control_command && s->control_command->command_next && success) {
034c6ed7
LP		 2297
2298 /* There is another command to *
2299 * execute, so let's do that. */
2300
9e2f7c11 2301 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
034c6ed7
LP		 2302 service_run_next(s, success);
2303
80876c20 2304 } else {
034c6ed7
LP		 2305 /* No further commands for this step, so let's
2306 * figure out what to do next */
2307
a16e1123
LP		 2308 s->control_command = NULL;
2309 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2310
9e2f7c11 2311 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2312
034c6ed7
LP		 2313 switch (s->state) {
2314
2315 case SERVICE_START_PRE:
2316 if (success)
2317 service_enter_start(s);
2318 else
80876c20 2319 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2320 break;
2321
2322 case SERVICE_START:
2323 assert(s->type == SERVICE_FORKING);
2324
2325 /* Let's try to load the pid
2326 * file here if we can. We
2327 * ignore the return value,
2328 * since the PID file might
2329 * actually be created by a
2330 * START_POST script */
2331
2332 if (success) {
2333 if (s->pid_file)
2334 service_load_pid_file(s);
2335
2336 service_enter_start_post(s);
2337 } else
80876c20 2338 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2339
2340 break;
2341
2342 case SERVICE_START_POST:
2343 if (success && s->pid_file && !s->main_pid_known) {
2344 int r;
2345
2346 /* Hmm, let's see if we can
2347 * load the pid now after the
2348 * start-post scripts got
2349 * executed. */
2350
2351 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2352 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2353 }
2354
2355 /* Fall through */
2356
2357 case SERVICE_RELOAD:
80876c20
LP		 2358 if (success)
2359 service_enter_running(s, true);
2360 else
034c6ed7
LP		 2361 service_enter_stop(s, false);
2362
2363 break;
2364
2365 case SERVICE_STOP:
80876c20 2366 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2367 break;
2368
2369 case SERVICE_STOP_SIGTERM:
2370 case SERVICE_STOP_SIGKILL:
2371 if (main_pid_good(s) <= 0)
2372 service_enter_stop_post(s, success);
2373
2374 /* If there is still a service
2375 * process around, wait until
2376 * that one quit, too */
2377 break;
2378
2379 case SERVICE_STOP_POST:
2380 case SERVICE_FINAL_SIGTERM:
2381 case SERVICE_FINAL_SIGKILL:
2382 service_enter_dead(s, success, true);
2383 break;
2384
2385 default:
2386 assert_not_reached("Uh, control process died at wrong time.");
2387 }
2388 }
8c47c732 2389 }
034c6ed7
LP		 2390}
2391
acbb0225 2392static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2393 Service *s = SERVICE(u);
034c6ed7
LP		 2394
2395 assert(s);
2396 assert(elapsed == 1);
2397
acbb0225 2398 assert(w == &s->timer_watch);
034c6ed7
LP		 2399
2400 switch (s->state) {
2401
2402 case SERVICE_START_PRE:
2403 case SERVICE_START:
9e2f7c11 2404 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2405 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2406 break;
2407
034c6ed7
LP		 2408 case SERVICE_START_POST:
2409 case SERVICE_RELOAD:
9e2f7c11 2410 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2411 service_enter_stop(s, false);
2412 break;
2413
2414 case SERVICE_STOP:
9e2f7c11 2415 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2416 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2417 break;
2418
2419 case SERVICE_STOP_SIGTERM:
9e2f7c11 2420 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2421 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2422 break;
2423
2424 case SERVICE_STOP_SIGKILL:
2425 /* Uh, wie sent a SIGKILL and it is still not gone?
2426 * Must be something we cannot kill, so let's just be
2427 * weirded out and continue */
2428
9e2f7c11 2429 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2430 service_enter_stop_post(s, false);
2431 break;
2432
2433 case SERVICE_STOP_POST:
9e2f7c11 2434 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2435 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2436 break;
2437
2438 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2439 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2440 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2441 break;
2442
2443 case SERVICE_FINAL_SIGKILL:
18c78fb1 2444 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
034c6ed7
LP		 2445 service_enter_dead(s, false, true);
2446 break;
2447
2448 case SERVICE_AUTO_RESTART:
54165a39 2449 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2450 service_enter_restart(s);
2451 break;
2452
2453 default:
2454 assert_not_reached("Timeout at wrong time.");
2455 }
5cb5a6ff
LP		 2456}
2457
8e274523
LP		 2458static void service_cgroup_notify_event(Unit *u) {
2459 Service *s = SERVICE(u);
2460
2461 assert(u);
2462
9e2f7c11 2463 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2464
2465 switch (s->state) {
2466
2467 /* Waiting for SIGCHLD is usually more interesting,
2468 * because it includes return codes/signals. Which is
2469 * why we ignore the cgroup events for most cases,
2470 * except when we don't know pid which to expect the
2471 * SIGCHLD for. */
2472
2473 case SERVICE_RUNNING:
80876c20 2474 service_enter_running(s, true);
8e274523
LP		 2475 break;
2476
2477 default:
2478 ;
2479 }
2480}
2481
c952c6ec 2482static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2483 Service *s = SERVICE(u);
2484 const char *e;
2485
2486 assert(u);
2487
c952c6ec
LP		 2488 if (s->notify_access == NOTIFY_NONE) {
2489 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2490 u->meta.id, (unsigned long) pid);
2491 return;
2492 }
2493
2494 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2495 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2496 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2497 return;
2498 }
2499
8c47c732
LP		 2500 log_debug("%s: Got message", u->meta.id);
2501
2502 /* Interpret MAINPID= */
2503 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2504 (s->state == SERVICE_START ||
2505 s->state == SERVICE_START_POST ||
2506 s->state == SERVICE_RUNNING ||
2507 s->state == SERVICE_RELOAD)) {
8c47c732 2508
5925dd3c 2509 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2510 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2511 else {
2512 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2513 service_set_main_pid(s, pid);
8c47c732
LP		 2514 }
2515 }
2516
2517 /* Interpret READY= */
2518 if (s->type == SERVICE_NOTIFY &&
2519 s->state == SERVICE_START &&
2520 strv_find(tags, "READY=1")) {
2521 log_debug("%s: got READY=1", u->meta.id);
2522
2523 service_enter_start_post(s);
2524 }
2525
2526 /* Interpret STATUS= */
2527 if ((e = strv_find_prefix(tags, "STATUS="))) {
2528 char *t;
2529
3a2776bc
LP		 2530 if (e[7]) {
2531 if (!(t = strdup(e+7))) {
2532 log_error("Failed to allocate string.");
2533 return;
2534 }
2535
2536 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2537
3a2776bc
LP		 2538 free(s->status_text);
2539 s->status_text = t;
2540 } else {
2541 free(s->status_text);
2542 s->status_text = NULL;
2543 }
8c47c732 2544
8c47c732
LP		 2545 }
2546}
2547
2c4104f0 2548static int service_enumerate(Manager *m) {
2c4104f0
LP		 2549 char **p;
2550 unsigned i;
2551 DIR *d = NULL;
2552 char *path = NULL, *fpath = NULL, *name = NULL;
2553 int r;
2554
2555 assert(m);
2556
84e3543e 2557 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2558 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2559 struct dirent *de;
2560
2561 free(path);
2562 path = NULL;
09cd1ab1 2563 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2564 r = -ENOMEM;
2565 goto finish;
2566 }
2567
2568 if (d)
2569 closedir(d);
2570
2571 if (!(d = opendir(path))) {
2572 if (errno != ENOENT)
2573 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2574
2575 continue;
2576 }
2577
2578 while ((de = readdir(d))) {
6542952f 2579 Unit *service;
db06e3b6 2580 int a, b;
2c4104f0
LP		 2581
2582 if (ignore_file(de->d_name))
2583 continue;
2584
2585 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2586 continue;
2587
2588 if (strlen(de->d_name) < 4)
2589 continue;
2590
db06e3b6
LP		 2591 a = undecchar(de->d_name[1]);
2592 b = undecchar(de->d_name[2]);
2593
2594 if (a < 0 || b < 0)
2595 continue;
2596
2c4104f0
LP		 2597 free(fpath);
2598 fpath = NULL;
09cd1ab1 2599 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2600 r = -ENOMEM;
2601 goto finish;
2602 }
2603
2604 if (access(fpath, X_OK) < 0) {
2605
2606 if (errno != ENOENT)
2607 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2608
2609 continue;
2610 }
2611
2612 free(name);
b7ccee3c 2613 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2614 r = -ENOMEM;
2615 goto finish;
2616 }
2617
398ef8ba 2618 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2619 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2620 continue;
2621 }
2c4104f0 2622
09cd1ab1 2623 if (de->d_name[0] == 'S' &&
fc5df99e 2624 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
fbe9f3a9
LP		 2625 SERVICE(service)->sysv_start_priority =
2626 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6
LP		 2627
2628 manager_dispatch_load_queue(m);
2629 service = unit_follow_merge(service);
2630
f8820b62
LP		 2631 /* If this is a native service, rely
2632 * on native ways to pull in a
2633 * service, don't pull it in via sysv
2634 * rcN.d links. */
2635 if (service->meta.fragment_path)
2636 continue;
2637
2c4104f0 2638 if (de->d_name[0] == 'S') {
2c4104f0 2639
2c966c03 2640 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2c4104f0 2641 goto finish;
23a177ef 2642
fc5df99e
LP		 2643 } else if (de->d_name[0] == 'K' &&
2644 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2645 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2646
23a177ef
LP		 2647 /* We honour K links only for
2648 * halt/reboot. For the normal
2649 * runlevels we assume the
2650 * stop jobs will be
2651 * implicitly added by the
6542952f
LP		 2652 * core logic. Also, we don't
2653 * really distuingish here
2654 * between the runlevels 0 and
2655 * 6 and just add them to the
fc5df99e
LP		 2656 * special shutdown target. On
2657 * SUSE the boot.d/ runlevel
2658 * is also used for shutdown,
2659 * so we add links for that
2660 * too to the shutdown
2661 * target.*/
6542952f 2662
2c966c03 2663 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2c4104f0
LP		 2664 goto finish;
2665 }
2666 }
2667 }
2668
2669 r = 0;
2670
2671finish:
2672 free(path);
2673 free(fpath);
2674 free(name);
fbe9f3a9
LP		 2675
2676 if (d)
2677 closedir(d);
2c4104f0
LP		 2678
2679 return r;
2680}
2681
05e343b7
LP		 2682static void service_bus_name_owner_change(
2683 Unit *u,
2684 const char *name,
2685 const char *old_owner,
2686 const char *new_owner) {
2687
2688 Service *s = SERVICE(u);
2689
2690 assert(s);
2691 assert(name);
2692
2693 assert(streq(s->bus_name, name));
2694 assert(old_owner || new_owner);
2695
2696 if (old_owner && new_owner)
2697 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2698 else if (old_owner)
2699 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2700 else
2701 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2702
2703 s->bus_name_good = !!new_owner;
2704
2705 if (s->type == SERVICE_DBUS) {
2706
2707 /* service_enter_running() will figure out what to
2708 * do */
2709 if (s->state == SERVICE_RUNNING)
2710 service_enter_running(s, true);
2711 else if (s->state == SERVICE_START && new_owner)
2712 service_enter_start_post(s);
2713
2714 } else if (new_owner &&
2715 s->main_pid <= 0 &&
2716 (s->state == SERVICE_START ||
2717 s->state == SERVICE_START_POST ||
2718 s->state == SERVICE_RUNNING ||
2719 s->state == SERVICE_RELOAD)) {
2720
2721 /* Try to acquire PID from bus service */
2722 log_debug("Trying to acquire PID from D-Bus name...");
2723
2724 bus_query_pid(u->meta.manager, name);
2725 }
2726}
2727
2728static void service_bus_query_pid_done(
2729 Unit *u,
2730 const char *name,
2731 pid_t pid) {
2732
2733 Service *s = SERVICE(u);
2734
2735 assert(s);
2736 assert(name);
2737
2738 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2739
2740 if (s->main_pid <= 0 &&
2741 (s->state == SERVICE_START ||
2742 s->state == SERVICE_START_POST ||
2743 s->state == SERVICE_RUNNING ||
2744 s->state == SERVICE_RELOAD))
5925dd3c 2745 service_set_main_pid(s, pid);
05e343b7
LP		 2746}
2747
6cf6bbc2 2748int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 2749 assert(s);
2750 assert(fd >= 0);
2751
2752 /* This is called by the socket code when instantiating a new
2753 * service for a stream socket and the socket needs to be
2754 * configured. */
2755
4cd1fbcc 2756 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 2757 return -EINVAL;
2758
2759 if (s->socket_fd >= 0)
2760 return -EBUSY;
2761
2762 if (s->state != SERVICE_DEAD)
2763 return -EAGAIN;
2764
2765 s->socket_fd = fd;
701cc384 2766 s->got_socket_fd = true;
6cf6bbc2
LP		 2767 s->socket = sock;
2768
4f2d528d
LP		 2769 return 0;
2770}
2771
5632e374
LP		 2772static void service_reset_maintenance(Unit *u) {
2773 Service *s = SERVICE(u);
2774
2775 assert(s);
2776
2777 if (s->state == SERVICE_MAINTENANCE)
2778 service_set_state(s, SERVICE_DEAD);
2779
2780 s->failure = false;
2781}
2782
94f04347
LP		 2783static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2784 [SERVICE_DEAD] = "dead",
2785 [SERVICE_START_PRE] = "start-pre",
2786 [SERVICE_START] = "start",
2787 [SERVICE_START_POST] = "start-post",
2788 [SERVICE_RUNNING] = "running",
80876c20 2789 [SERVICE_EXITED] = "exited",
94f04347
LP		 2790 [SERVICE_RELOAD] = "reload",
2791 [SERVICE_STOP] = "stop",
2792 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2793 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2794 [SERVICE_STOP_POST] = "stop-post",
2795 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2796 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
18c78fb1 2797 [SERVICE_MAINTENANCE] = "maintenance",
94f04347
LP		 2798 [SERVICE_AUTO_RESTART] = "auto-restart",
2799};
2800
2801DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2802
2803static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2804 [SERVICE_ONCE] = "once",
2805 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 2806 [SERVICE_RESTART_ALWAYS] = "restart-always",
94f04347
LP		 2807};
2808
2809DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2810
2811static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 2812 [SERVICE_SIMPLE] = "simple",
0d624a78 2813 [SERVICE_FORKING] = "forking",
05e343b7 2814 [SERVICE_FINISH] = "finish",
8c47c732
LP		 2815 [SERVICE_DBUS] = "dbus",
2816 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 2817};
2818
2819DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2820
e537352b 2821static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 2822 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2823 [SERVICE_EXEC_START] = "ExecStart",
2824 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2825 [SERVICE_EXEC_RELOAD] = "ExecReload",
2826 [SERVICE_EXEC_STOP] = "ExecStop",
2827 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2828};
2829
2830DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2831
c952c6ec
LP		 2832static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
2833 [NOTIFY_NONE] = "none",
2834 [NOTIFY_MAIN] = "main",
2835 [NOTIFY_ALL] = "all"
2836};
2837
2838DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
2839
87f0e418 2840const UnitVTable service_vtable = {
5cb5a6ff 2841 .suffix = ".service",
9e58ff9c 2842 .show_status = true,
5cb5a6ff 2843
034c6ed7
LP		 2844 .init = service_init,
2845 .done = service_done,
a16e1123
LP		 2846 .load = service_load,
2847
2848 .coldplug = service_coldplug,
034c6ed7 2849
5cb5a6ff
LP		 2850 .dump = service_dump,
2851
2852 .start = service_start,
2853 .stop = service_stop,
2854 .reload = service_reload,
2855
034c6ed7
LP		 2856 .can_reload = service_can_reload,
2857
a16e1123
LP		 2858 .serialize = service_serialize,
2859 .deserialize_item = service_deserialize_item,
2860
5cb5a6ff 2861 .active_state = service_active_state,
10a94420 2862 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 2863
701cc384
LP		 2864 .check_gc = service_check_gc,
2865 .check_snapshot = service_check_snapshot,
2866
034c6ed7
LP		 2867 .sigchld_event = service_sigchld_event,
2868 .timer_event = service_timer_event,
2c4104f0 2869
5632e374
LP		 2870 .reset_maintenance = service_reset_maintenance,
2871
8e274523 2872 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 2873 .notify_message = service_notify_message,
8e274523 2874
05e343b7
LP		 2875 .bus_name_owner_change = service_bus_name_owner_change,
2876 .bus_query_pid_done = service_bus_query_pid_done,
2877
4139c1b2
LP		 2878 .bus_message_handler = bus_service_message_handler,
2879
2c4104f0 2880 .enumerate = service_enumerate
5cb5a6ff 2881};
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