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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 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
5430f7f2
LP		 9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
a7334b09
LP		 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
5430f7f2 16 Lesser General Public License for more details.
a7334b09 17
5430f7f2 18 You should have received a copy of the GNU Lesser General Public License
a7334b09
LP		 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>
4b939747 26#include <sys/reboot.h>
5cb5a6ff 27
4b939747 28#include "manager.h"
87f0e418 29#include "unit.h"
5cb5a6ff
LP		 30#include "service.h"
31#include "load-fragment.h"
32#include "load-dropin.h"
034c6ed7 33#include "log.h"
2c4104f0 34#include "strv.h"
9e2f7c11 35#include "unit-name.h"
4139c1b2 36#include "dbus-service.h"
514f4ef5 37#include "special.h"
398ef8ba 38#include "bus-errors.h"
9a57c629 39#include "exit-status.h"
f6a6225e
LP		 40#include "def.h"
41#include "util.h"
7f110ff9 42#include "utf8.h"
034c6ed7 43
07459bb6 44#ifdef HAVE_SYSV_COMPAT
f34277d9 45
f6a6225e 46#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
f34277d9 47
09cd1ab1
LP		 48typedef enum RunlevelType {
49 RUNLEVEL_UP,
50 RUNLEVEL_DOWN,
fc5df99e 51 RUNLEVEL_SYSINIT
09cd1ab1
LP		 52} RunlevelType;
53
54static const struct {
55 const char *path;
56 const char *target;
57 const RunlevelType type;
58} rcnd_table[] = {
9d25f5ed 59 /* Standard SysV runlevels for start-up */
514f4ef5 60 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 61 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
62 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
63 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
64 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 65
d4054675 66#ifdef TARGET_SUSE
cfe243e3 67 /* SUSE style boot.d */
fc5df99e 68 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 69#endif
fbe9f3a9 70
240fc26e 71#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
fbe9f3a9 72 /* Debian style rcS.d */
fc5df99e 73 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 74#endif
9d25f5ed
LP		 75
76 /* Standard SysV runlevels for shutdown */
77 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
78 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
79
80 /* Note that the order here matters, as we read the
81 directories in this order, and we want to make sure that
82 sysv_start_priority is known when we first load the
83 unit. And that value we only know from S links. Hence
84 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 85};
86
09cd1ab1 87#define RUNLEVELS_UP "12345"
fbe9f3a9 88/* #define RUNLEVELS_DOWN "06" */
e51db373 89#define RUNLEVELS_BOOT "bBsS"
07459bb6 90#endif
09cd1ab1 91
acbb0225 92static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 93 [SERVICE_DEAD] = UNIT_INACTIVE,
94 [SERVICE_START_PRE] = UNIT_ACTIVATING,
95 [SERVICE_START] = UNIT_ACTIVATING,
96 [SERVICE_START_POST] = UNIT_ACTIVATING,
97 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 98 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 99 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 100 [SERVICE_STOP] = UNIT_DEACTIVATING,
101 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
103 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
104 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
105 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 106 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 107 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 108};
5cb5a6ff 109
a16e1123
LP		 110static void service_init(Unit *u) {
111 Service *s = SERVICE(u);
112
113 assert(u);
ac155bb8 114 assert(u->load_state == UNIT_STUB);
a16e1123
LP		 115
116 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
117 s->restart_usec = DEFAULT_RESTART_USEC;
bb242b7b
MO		 118
119 s->watchdog_watch.type = WATCH_INVALID;
120
a16e1123 121 s->timer_watch.type = WATCH_INVALID;
07459bb6 122#ifdef HAVE_SYSV_COMPAT
a16e1123 123 s->sysv_start_priority = -1;
ea87ca5a 124 s->sysv_start_priority_from_rcnd = -1;
07459bb6 125#endif
a16e1123 126 s->socket_fd = -1;
3185a36b 127 s->guess_main_pid = true;
a16e1123
LP		 128
129 exec_context_init(&s->exec_context);
130
4b939747 131 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
a16e1123
LP		 132
133 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
134}
135
5e94833f
LP		 136static void service_unwatch_control_pid(Service *s) {
137 assert(s);
138
139 if (s->control_pid <= 0)
140 return;
141
142 unit_unwatch_pid(UNIT(s), s->control_pid);
143 s->control_pid = 0;
144}
145
146static void service_unwatch_main_pid(Service *s) {
147 assert(s);
148
149 if (s->main_pid <= 0)
150 return;
151
152 unit_unwatch_pid(UNIT(s), s->main_pid);
153 s->main_pid = 0;
154}
155
3e52541e
MS		 156static void service_unwatch_pid_file(Service *s) {
157 if (!s->pid_file_pathspec)
158 return;
159
160 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
161 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
162 path_spec_done(s->pid_file_pathspec);
163 free(s->pid_file_pathspec);
164 s->pid_file_pathspec = NULL;
165}
166
5925dd3c 167static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 168 pid_t ppid;
169
5925dd3c
LP		 170 assert(s);
171
172 if (pid <= 1)
173 return -EINVAL;
174
175 if (pid == getpid())
176 return -EINVAL;
177
6dfa5494
LP		 178 s->main_pid = pid;
179 s->main_pid_known = true;
180
181 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
e55224ca 182 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
1124fe6f 183 UNIT(s)->id, (unsigned long) pid);
e55224ca 184
6dfa5494
LP		 185 s->main_pid_alien = true;
186 } else
187 s->main_pid_alien = false;
5925dd3c 188
b58b4116
LP		 189 exec_status_start(&s->main_exec_status, pid);
190
5925dd3c
LP		 191 return 0;
192}
193
4f2d528d
LP		 194static void service_close_socket_fd(Service *s) {
195 assert(s);
196
197 if (s->socket_fd < 0)
198 return;
199
200 close_nointr_nofail(s->socket_fd);
201 s->socket_fd = -1;
202}
203
6cf6bbc2
LP		 204static void service_connection_unref(Service *s) {
205 assert(s);
206
57020a3a 207 if (!UNIT_DEREF(s->accept_socket))
6cf6bbc2
LP		 208 return;
209
57020a3a
LP		 210 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
211 unit_ref_unset(&s->accept_socket);
6cf6bbc2
LP		 212}
213
a6927d7f
MO		 214static void service_stop_watchdog(Service *s) {
215 assert(s);
216
bb242b7b 217 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
a6927d7f
MO		 218 s->watchdog_timestamp.realtime = 0;
219 s->watchdog_timestamp.monotonic = 0;
220}
221
bb242b7b
MO		 222static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
223
224static void service_handle_watchdog(Service *s) {
225 usec_t offset;
226 int r;
227
228 assert(s);
229
230 if (s->watchdog_usec == 0)
231 return;
232
233 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
234 if (offset >= s->watchdog_usec) {
235 log_error("%s watchdog timeout!", UNIT(s)->id);
236 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
237 return;
238 }
239
240 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
241 if (r < 0)
242 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
243}
244
a6927d7f
MO		 245static void service_reset_watchdog(Service *s) {
246 assert(s);
247
248 dual_timestamp_get(&s->watchdog_timestamp);
bb242b7b 249 service_handle_watchdog(s);
a6927d7f
MO		 250}
251
87f0e418
LP		 252static void service_done(Unit *u) {
253 Service *s = SERVICE(u);
44d8db9e
LP		 254
255 assert(s);
256
257 free(s->pid_file);
258 s->pid_file = NULL;
259
07459bb6 260#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 261 free(s->sysv_path);
262 s->sysv_path = NULL;
263
8309400a
LP		 264 free(s->sysv_runlevels);
265 s->sysv_runlevels = NULL;
07459bb6 266#endif
8309400a 267
8c47c732
LP		 268 free(s->status_text);
269 s->status_text = NULL;
270
44d8db9e 271 exec_context_done(&s->exec_context);
e537352b 272 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 273 s->control_command = NULL;
867b3b7d 274 s->main_command = NULL;
44d8db9e
LP		 275
276 /* This will leak a process, but at least no memory or any of
277 * our resources */
5e94833f
LP		 278 service_unwatch_main_pid(s);
279 service_unwatch_control_pid(s);
3e52541e 280 service_unwatch_pid_file(s);
44d8db9e 281
05e343b7 282 if (s->bus_name) {
ac155bb8 283 unit_unwatch_bus_name(u, s->bus_name);
05e343b7
LP		 284 free(s->bus_name);
285 s->bus_name = NULL;
286 }
287
4f2d528d 288 service_close_socket_fd(s);
6cf6bbc2 289 service_connection_unref(s);
4f2d528d 290
57020a3a 291 unit_ref_unset(&s->accept_socket);
f976f3f6 292
bb242b7b
MO		 293 service_stop_watchdog(s);
294
acbb0225 295 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 296}
297
07459bb6 298#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 299static char *sysv_translate_name(const char *name) {
300 char *r;
301
302 if (!(r = new(char, strlen(name) + sizeof(".service"))))
303 return NULL;
304
1bd8b818 305#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198
MB		 306 if (endswith(name, ".sh"))
307 /* Drop Debian-style .sh suffix */
308 strcpy(stpcpy(r, name) - 3, ".service");
309#endif
310#ifdef TARGET_SUSE
b7ccee3c
LP		 311 if (startswith(name, "boot."))
312 /* Drop SuSE-style boot. prefix */
313 strcpy(stpcpy(r, name + 5), ".service");
5b819198 314#endif
65530632 315#ifdef TARGET_FRUGALWARE
5b819198 316 if (startswith(name, "rc."))
65530632
MV		 317 /* Drop Frugalware-style rc. prefix */
318 strcpy(stpcpy(r, name + 3), ".service");
980900c1 319#endif
b7ccee3c
LP		 320 else
321 /* Normal init scripts */
322 strcpy(stpcpy(r, name), ".service");
323
324 return r;
325}
326
ee95669f 327static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 328
a7d3cc26
LP		 329 /* We silently ignore the $ prefix here. According to the LSB
330 * spec it simply indicates whether something is a
331 * standardized name or a distribution-specific one. Since we
332 * just follow what already exists and do not introduce new
333 * uses or names we don't care who introduced a new name. */
334
2c4104f0 335 static const char * const table[] = {
6464aa08 336 /* LSB defined facilities */
a7d3cc26 337 "local_fs", SPECIAL_LOCAL_FS_TARGET,
6fdae8a6
DM		 338#if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
339#else
8d0e38a2
LP		 340 /* Due to unfortunate name selection in Mandriva,
341 * $network is provided by network-up which is ordered
342 * after network which actually starts interfaces.
343 * To break the loop, just ignore it */
a7d3cc26 344 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 345#endif
a7d3cc26
LP		 346 "named", SPECIAL_NSS_LOOKUP_TARGET,
347 "portmap", SPECIAL_RPCBIND_TARGET,
348 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
349 "syslog", SPECIAL_SYSLOG_TARGET,
4466194c 350 "time", SPECIAL_TIME_SYNC_TARGET,
6464aa08 351
0b603b4e
KS		 352 /* common extensions */
353 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
354 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
355 "null", NULL,
356
1bd8b818 357#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
a7d3cc26 358 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 359#endif
3177a49c
LP		 360
361#ifdef TARGET_FEDORA
a7d3cc26
LP		 362 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
363 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
364 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 365#endif
a7d3cc26 366
0b603b4e
KS		 367#ifdef TARGET_SUSE
368 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
369#endif
2c4104f0
LP		 370 };
371
372 unsigned i;
373 char *r;
ee95669f 374 const char *n;
2c4104f0 375
ee95669f
LP		 376 assert(name);
377 assert(_r);
a7d3cc26 378
ee95669f 379 n = *name == '$' ? name + 1 : name;
a7d3cc26 380
ee95669f 381 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 382
ee95669f
LP		 383 if (!streq(table[i], n))
384 continue;
2c4104f0 385
ee95669f
LP		 386 if (!table[i+1])
387 return 0;
388
389 if (!(r = strdup(table[i+1])))
390 return -ENOMEM;
391
392 goto finish;
393 }
2c4104f0 394
a7d3cc26 395 /* If we don't know this name, fallback heuristics to figure
0003d1ab 396 * out whether something is a target or a service alias. */
a7d3cc26 397
e83c7c0b
LP		 398 if (*name == '$') {
399 if (!unit_prefix_is_valid(n))
400 return -EINVAL;
401
ee95669f
LP		 402 /* Facilities starting with $ are most likely targets */
403 r = unit_name_build(n, NULL, ".target");
e83c7c0b 404 } else if (filename && streq(name, filename))
35b8ca3a 405 /* Names equaling the file name of the services are redundant */
ee95669f 406 return 0;
32159d3a 407 else
ee95669f
LP		 408 /* Everything else we assume to be normal service names */
409 r = sysv_translate_name(n);
2c4104f0 410
32159d3a 411 if (!r)
2c4104f0
LP		 412 return -ENOMEM;
413
414finish:
b4353094 415 *_r = r;
2c4104f0
LP		 416
417 return 1;
418}
419
56d748b4 420static int sysv_fix_order(Service *s) {
ac155bb8 421 Unit *other;
2c4104f0
LP		 422 int r;
423
424 assert(s);
425
426 if (s->sysv_start_priority < 0)
427 return 0;
428
23a177ef
LP		 429 /* For each pair of services where at least one lacks a LSB
430 * header, we use the start priority value to order things. */
2c4104f0 431
1124fe6f 432 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
2c4104f0
LP		 433 Service *t;
434 UnitDependency d;
eeaafddc 435 bool special_s, special_t;
2c4104f0 436
595ed347 437 t = SERVICE(other);
2c4104f0
LP		 438
439 if (s == t)
440 continue;
9f151f29 441
1124fe6f 442 if (UNIT(t)->load_state != UNIT_LOADED)
9f151f29 443 continue;
2c4104f0
LP		 444
445 if (t->sysv_start_priority < 0)
446 continue;
447
51a1a79d
LP		 448 /* If both units have modern headers we don't care
449 * about the priorities */
1124fe6f
MS		 450 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
451 (UNIT(t)->fragment_path || t->sysv_has_lsb))
23a177ef
LP		 452 continue;
453
eeaafddc
LP		 454 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
455 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
456
457 if (special_t && !special_s)
458 d = UNIT_AFTER;
459 else if (special_s && !special_t)
460 d = UNIT_BEFORE;
461 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 462 d = UNIT_AFTER;
463 else if (t->sysv_start_priority > s->sysv_start_priority)
464 d = UNIT_BEFORE;
465 else
466 continue;
467
468 /* FIXME: Maybe we should compare the name here lexicographically? */
469
da19d5c1 470 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 471 return r;
472 }
473
474 return 0;
475}
476
477static ExecCommand *exec_command_new(const char *path, const char *arg1) {
478 ExecCommand *c;
479
480 if (!(c = new0(ExecCommand, 1)))
481 return NULL;
482
483 if (!(c->path = strdup(path))) {
484 free(c);
485 return NULL;
486 }
487
488 if (!(c->argv = strv_new(path, arg1, NULL))) {
489 free(c->path);
490 free(c);
491 return NULL;
492 }
493
494 return c;
495}
496
497static int sysv_exec_commands(Service *s) {
498 ExecCommand *c;
499
500 assert(s);
501 assert(s->sysv_path);
502
503 if (!(c = exec_command_new(s->sysv_path, "start")))
504 return -ENOMEM;
505 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
506
507 if (!(c = exec_command_new(s->sysv_path, "stop")))
508 return -ENOMEM;
509 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
510
511 if (!(c = exec_command_new(s->sysv_path, "reload")))
512 return -ENOMEM;
513 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
514
515 return 0;
516}
517
e537352b 518static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 519 FILE *f;
520 Unit *u;
521 unsigned line = 0;
522 int r;
523 enum {
524 NORMAL,
525 DESCRIPTION,
526 LSB,
527 LSB_DESCRIPTION
528 } state = NORMAL;
0b5d26f9 529 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
5f4b19f4 530 struct stat st;
23a177ef
LP		 531
532 assert(s);
533 assert(path);
2c4104f0
LP		 534
535 u = UNIT(s);
536
537 if (!(f = fopen(path, "re"))) {
538 r = errno == ENOENT ? 0 : -errno;
539 goto finish;
540 }
541
5f4b19f4
LP		 542 zero(st);
543 if (fstat(fileno(f), &st) < 0) {
544 r = -errno;
545 goto finish;
546 }
547
2c4104f0
LP		 548 free(s->sysv_path);
549 if (!(s->sysv_path = strdup(path))) {
550 r = -ENOMEM;
551 goto finish;
552 }
553
5f4b19f4
LP		 554 s->sysv_mtime = timespec_load(&st.st_mtim);
555
556 if (null_or_empty(&st)) {
ac155bb8 557 u->load_state = UNIT_MASKED;
5f4b19f4
LP		 558 r = 0;
559 goto finish;
560 }
561
2c4104f0
LP		 562 while (!feof(f)) {
563 char l[LINE_MAX], *t;
564
565 if (!fgets(l, sizeof(l), f)) {
566 if (feof(f))
567 break;
568
569 r = -errno;
570 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
571 goto finish;
572 }
573
574 line++;
575
576 t = strstrip(l);
577 if (*t != '#')
578 continue;
579
580 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
581 state = LSB;
23a177ef 582 s->sysv_has_lsb = true;
2c4104f0
LP		 583 continue;
584 }
585
586 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
587 state = NORMAL;
588 continue;
589 }
590
591 t++;
592 t += strspn(t, WHITESPACE);
593
594 if (state == NORMAL) {
595
596 /* Try to parse Red Hat style chkconfig headers */
597
c2b35af6 598 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 599 int start_priority;
8309400a 600 char runlevels[16], *k;
2c4104f0
LP		 601
602 state = NORMAL;
603
8309400a
LP		 604 if (sscanf(t+10, "%15s %i %*i",
605 runlevels,
606 &start_priority) != 2) {
2c4104f0
LP		 607
608 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
609 continue;
610 }
611
fbe9f3a9
LP		 612 /* A start priority gathered from the
613 * symlink farms is preferred over the
614 * data from the LSB header. */
8309400a 615 if (start_priority < 0 || start_priority > 99)
2c4104f0 616 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
ea87ca5a 617 else
8309400a
LP		 618 s->sysv_start_priority = start_priority;
619
620 char_array_0(runlevels);
621 k = delete_chars(runlevels, WHITESPACE "-");
622
623 if (k[0]) {
624 char *d;
625
626 if (!(d = strdup(k))) {
627 r = -ENOMEM;
628 goto finish;
629 }
630
631 free(s->sysv_runlevels);
632 s->sysv_runlevels = d;
2c4104f0
LP		 633 }
634
0b5d26f9 635 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 636
637 size_t k = strlen(t);
638 char *d;
0b5d26f9 639 const char *j;
2c4104f0
LP		 640
641 if (t[k-1] == '\\') {
642 state = DESCRIPTION;
643 t[k-1] = 0;
644 }
645
0b5d26f9
LP		 646 if ((j = strstrip(t+12)) && *j) {
647 if (!(d = strdup(j))) {
648 r = -ENOMEM;
649 goto finish;
650 }
651 } else
652 d = NULL;
2c4104f0 653
0b5d26f9
LP		 654 free(chkconfig_description);
655 chkconfig_description = d;
2c4104f0 656
c2b35af6 657 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 658
659 char *fn;
660
661 state = NORMAL;
662
663 fn = strstrip(t+8);
664 if (!path_is_absolute(fn)) {
665 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
666 continue;
667 }
668
669 if (!(fn = strdup(fn))) {
670 r = -ENOMEM;
671 goto finish;
672 }
673
674 free(s->pid_file);
675 s->pid_file = fn;
676 }
677
678 } else if (state == DESCRIPTION) {
679
680 /* Try to parse Red Hat style description
681 * continuation */
682
683 size_t k = strlen(t);
0b5d26f9 684 char *j;
2c4104f0
LP		 685
686 if (t[k-1] == '\\')
687 t[k-1] = 0;
688 else
689 state = NORMAL;
690
0b5d26f9
LP		 691 if ((j = strstrip(t)) && *j) {
692 char *d = NULL;
693
694 if (chkconfig_description)
44d91056 695 d = join(chkconfig_description, " ", j, NULL);
0b5d26f9
LP		 696 else
697 d = strdup(j);
2c4104f0 698
0b5d26f9
LP		 699 if (!d) {
700 r = -ENOMEM;
701 goto finish;
702 }
703
704 free(chkconfig_description);
705 chkconfig_description = d;
706 }
2c4104f0
LP		 707
708 } else if (state == LSB || state == LSB_DESCRIPTION) {
709
c2b35af6 710 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 711 char *i, *w;
712 size_t z;
713
714 state = LSB;
715
f60f22df 716 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 717 char *n, *m;
718
719 if (!(n = strndup(w, z))) {
720 r = -ENOMEM;
721 goto finish;
722 }
723
ee95669f 724 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 725 free(n);
726
727 if (r < 0)
728 goto finish;
729
730 if (r == 0)
731 continue;
732
bd77d0fc
LP		 733 if (unit_name_to_type(m) == UNIT_SERVICE)
734 r = unit_add_name(u, m);
9700edb4
LP		 735 else
736 /* NB: SysV targets
737 * which are provided
738 * by a service are
739 * pulled in by the
740 * services, as an
741 * indication that the
742 * generic service is
743 * now available. This
744 * is strictly
745 * one-way. The
746 * targets do NOT pull
747 * in the SysV
748 * services! */
749 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 750
2c4104f0 751 if (r < 0)
43a37549 752 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 753
754 free(m);
2c4104f0
LP		 755 }
756
c2b35af6
LP		 757 } else if (startswith_no_case(t, "Required-Start:") ||
758 startswith_no_case(t, "Should-Start:") ||
759 startswith_no_case(t, "X-Start-Before:") ||
760 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 761 char *i, *w;
762 size_t z;
763
764 state = LSB;
765
f60f22df 766 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 767 char *n, *m;
768
769 if (!(n = strndup(w, z))) {
770 r = -ENOMEM;
771 goto finish;
772 }
773
ee95669f 774 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 775
e83c7c0b
LP		 776 if (r < 0) {
777 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
778 free(n);
779 continue;
780 }
781
782 free(n);
2c4104f0
LP		 783
784 if (r == 0)
785 continue;
786
c2b35af6 787 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 788
789 if (r < 0)
43a37549 790 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 791
792 free(m);
2c4104f0 793 }
c2b35af6 794 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 795 char *k, *d;
796
797 state = LSB;
798
799 k = delete_chars(t+14, WHITESPACE "-");
800
801 if (k[0] != 0) {
802 if (!(d = strdup(k))) {
803 r = -ENOMEM;
804 goto finish;
805 }
806
807 free(s->sysv_runlevels);
808 s->sysv_runlevels = d;
809 }
2c4104f0 810
0b5d26f9
LP		 811 } else if (startswith_no_case(t, "Description:")) {
812 char *d, *j;
ed4c1cc6 813
2c4104f0
LP		 814 state = LSB_DESCRIPTION;
815
0b5d26f9
LP		 816 if ((j = strstrip(t+12)) && *j) {
817 if (!(d = strdup(j))) {
818 r = -ENOMEM;
819 goto finish;
820 }
821 } else
822 d = NULL;
2c4104f0 823
0b5d26f9
LP		 824 free(long_description);
825 long_description = d;
2c4104f0 826
ed4c1cc6 827 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 828 char *d, *j;
2c4104f0 829
2c4104f0
LP		 830 state = LSB;
831
0b5d26f9
LP		 832 if ((j = strstrip(t+18)) && *j) {
833 if (!(d = strdup(j))) {
834 r = -ENOMEM;
835 goto finish;
836 }
837 } else
838 d = NULL;
2c4104f0 839
0b5d26f9
LP		 840 free(short_description);
841 short_description = d;
2c4104f0
LP		 842
843 } else if (state == LSB_DESCRIPTION) {
844
845 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 846 char *j;
2c4104f0 847
0b5d26f9
LP		 848 if ((j = strstrip(t)) && *j) {
849 char *d = NULL;
850
851 if (long_description)
44d91056 852 d = join(long_description, " ", t, NULL);
0b5d26f9
LP		 853 else
854 d = strdup(j);
855
856 if (!d) {
857 r = -ENOMEM;
858 goto finish;
859 }
860
861 free(long_description);
862 long_description = d;
2c4104f0
LP		 863 }
864
2c4104f0
LP		 865 } else
866 state = LSB;
867 }
868 }
869 }
870
2c4104f0
LP		 871 if ((r = sysv_exec_commands(s)) < 0)
872 goto finish;
e51db373
TFH		 873 if (s->sysv_runlevels &&
874 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
875 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
876 /* Service has both boot and "up" runlevels
877 configured. Kill the "up" ones. */
878 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
879 }
2c4104f0 880
a40eb732 881 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 882 /* If there a runlevels configured for this service
883 * but none of the standard ones, then we assume this
884 * is some special kind of service (which might be
885 * needed for early boot) and don't create any links
886 * to it. */
887
1124fe6f 888 UNIT(s)->default_dependencies = false;
09cd1ab1 889
09cd1ab1
LP		 890 /* Don't timeout special services during boot (like fsck) */
891 s->timeout_usec = 0;
f34277d9
LP		 892 } else
893 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 894
80876c20 895 /* Special setting for all SysV services */
1f48cf56 896 s->type = SERVICE_FORKING;
f8788303 897 s->remain_after_exit = !s->pid_file;
1835f23c 898 s->guess_main_pid = false;
525ee6f4 899 s->restart = SERVICE_RESTART_NO;
353e12c2 900 s->exec_context.ignore_sigpipe = false;
4dfc092a 901
1124fe6f 902 if (UNIT(s)->manager->sysv_console)
706343f4 903 s->exec_context.std_output = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
4dfc092a 904
cd25cce9 905 s->exec_context.kill_mode = KILL_PROCESS;
80876c20 906
0b5d26f9
LP		 907 /* We use the long description only if
908 * no short description is set. */
909
910 if (short_description)
911 description = short_description;
912 else if (chkconfig_description)
913 description = chkconfig_description;
914 else if (long_description)
915 description = long_description;
916 else
917 description = NULL;
918
919 if (description) {
920 char *d;
921
e527618d 922 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 923 r = -ENOMEM;
924 goto finish;
925 }
926
ac155bb8 927 u->description = d;
0b5d26f9
LP		 928 }
929
ea87ca5a
LP		 930 /* The priority that has been set in /etc/rcN.d/ hierarchies
931 * takes precedence over what is stored as default in the LSB
932 * header */
933 if (s->sysv_start_priority_from_rcnd >= 0)
934 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
935
ac155bb8 936 u->load_state = UNIT_LOADED;
23a177ef 937 r = 0;
2c4104f0
LP		 938
939finish:
940
941 if (f)
942 fclose(f);
943
0b5d26f9
LP		 944 free(short_description);
945 free(long_description);
946 free(chkconfig_description);
947
2c4104f0
LP		 948 return r;
949}
950
e537352b 951static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 952 char **p;
953
954 assert(s);
955 assert(name);
956
e1992852 957 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 958 * prefixes/suffixes. */
1bd8b818 959#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198 960 if (endswith(name, ".sh.service"))
d017c6ca 961 return -ENOENT;
5b819198
MB		 962#endif
963
964#ifdef TARGET_SUSE
965 if (startswith(name, "boot."))
966 return -ENOENT;
967#endif
968
969#ifdef TARGET_FRUGALWARE
970 if (startswith(name, "rc."))
971 return -ENOENT;
972#endif
d017c6ca 973
1124fe6f 974 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 975 char *path;
976 int r;
977
44d91056
LP		 978 path = join(*p, "/", name, NULL);
979 if (!path)
2c4104f0
LP		 980 return -ENOMEM;
981
982 assert(endswith(path, ".service"));
983 path[strlen(path)-8] = 0;
984
e537352b 985 r = service_load_sysv_path(s, path);
fbe9f3a9 986
1bd8b818 987#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1124fe6f 988 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 989 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 990 strcat(path, ".sh");
991 r = service_load_sysv_path(s, path);
992 }
e1992852 993#endif
2c4104f0
LP		 994 free(path);
995
e1992852 996#ifdef TARGET_SUSE
1124fe6f 997 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 998 /* Try SUSE style boot.* init scripts */
fbe9f3a9 999
44d91056
LP		 1000 path = join(*p, "/boot.", name, NULL);
1001 if (!path)
fbe9f3a9
LP		 1002 return -ENOMEM;
1003
e1992852 1004 /* Drop .service suffix */
fbe9f3a9
LP		 1005 path[strlen(path)-8] = 0;
1006 r = service_load_sysv_path(s, path);
1007 free(path);
1008 }
e1992852 1009#endif
fbe9f3a9 1010
e1992852 1011#ifdef TARGET_FRUGALWARE
1124fe6f 1012 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 1013 /* Try Frugalware style rc.* init scripts */
65530632 1014
44d91056
LP		 1015 path = join(*p, "/rc.", name, NULL);
1016 if (!path)
65530632
MV		 1017 return -ENOMEM;
1018
e1992852 1019 /* Drop .service suffix */
65530632
MV		 1020 path[strlen(path)-8] = 0;
1021 r = service_load_sysv_path(s, path);
1022 free(path);
1023 }
e1992852 1024#endif
65530632 1025
23a177ef 1026 if (r < 0)
2c4104f0 1027 return r;
23a177ef 1028
1124fe6f 1029 if ((UNIT(s)->load_state != UNIT_STUB))
23a177ef 1030 break;
2c4104f0
LP		 1031 }
1032
1033 return 0;
1034}
1035
e537352b 1036static int service_load_sysv(Service *s) {
2c4104f0
LP		 1037 const char *t;
1038 Iterator i;
1039 int r;
1040
5cb5a6ff
LP		 1041 assert(s);
1042
1043 /* Load service data from SysV init scripts, preferably with
1044 * LSB headers ... */
1045
1124fe6f 1046 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 1047 return 0;
1048
1124fe6f 1049 if ((t = UNIT(s)->id))
e537352b 1050 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 1051 return r;
1052
1124fe6f
MS		 1053 if (UNIT(s)->load_state == UNIT_STUB)
1054 SET_FOREACH(t, UNIT(s)->names, i) {
1055 if (t == UNIT(s)->id)
e537352b
LP		 1056 continue;
1057
e364ad06 1058 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 1059 return r;
1060
1124fe6f 1061 if (UNIT(s)->load_state != UNIT_STUB)
23a177ef
LP		 1062 break;
1063 }
2c4104f0
LP		 1064
1065 return 0;
5cb5a6ff 1066}
07459bb6 1067#endif
5cb5a6ff 1068
9fff8a1f 1069static int fsck_fix_order(Service *s) {
ac155bb8 1070 Unit *other;
9fff8a1f
LP		 1071 int r;
1072
1073 assert(s);
1074
1075 if (s->fsck_passno <= 0)
1076 return 0;
1077
1078 /* For each pair of services where both have an fsck priority
1079 * we order things based on it. */
1080
1124fe6f 1081 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1082 Service *t;
1083 UnitDependency d;
1084
595ed347 1085 t = SERVICE(other);
9fff8a1f
LP		 1086
1087 if (s == t)
1088 continue;
1089
1124fe6f 1090 if (UNIT(t)->load_state != UNIT_LOADED)
9fff8a1f
LP		 1091 continue;
1092
1093 if (t->fsck_passno <= 0)
1094 continue;
1095
1096 if (t->fsck_passno < s->fsck_passno)
1097 d = UNIT_AFTER;
1098 else if (t->fsck_passno > s->fsck_passno)
1099 d = UNIT_BEFORE;
1100 else
1101 continue;
1102
da19d5c1 1103 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1104 return r;
1105 }
1106
1107 return 0;
1108}
1109
243b1432
LP		 1110static int service_verify(Service *s) {
1111 assert(s);
1112
1124fe6f 1113 if (UNIT(s)->load_state != UNIT_LOADED)
243b1432
LP		 1114 return 0;
1115
1116 if (!s->exec_command[SERVICE_EXEC_START]) {
1124fe6f 1117 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
243b1432
LP		 1118 return -EINVAL;
1119 }
1120
34e9ba66
LP		 1121 if (s->type != SERVICE_ONESHOT &&
1122 s->exec_command[SERVICE_EXEC_START]->command_next) {
1124fe6f 1123 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
6cf6bbc2
LP		 1124 return -EINVAL;
1125 }
1126
c06b7a15
LP		 1127 if (s->type == SERVICE_ONESHOT &&
1128 s->exec_command[SERVICE_EXEC_RELOAD]) {
1124fe6f 1129 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
c06b7a15
LP		 1130 return -EINVAL;
1131 }
1132
05e343b7 1133 if (s->type == SERVICE_DBUS && !s->bus_name) {
1124fe6f 1134 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
4d0e5dbd
LP		 1135 return -EINVAL;
1136 }
1137
2e22afe9 1138 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1124fe6f 1139 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
05e343b7
LP		 1140 return -EINVAL;
1141 }
1142
243b1432
LP		 1143 return 0;
1144}
1145
a40eb732
LP		 1146static int service_add_default_dependencies(Service *s) {
1147 int r;
1148
1149 assert(s);
1150
1151 /* Add a number of automatic dependencies useful for the
1152 * majority of services. */
1153
1154 /* First, pull in base system */
1124fe6f 1155 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
a40eb732
LP		 1156
1157 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1158 return r;
1159
1124fe6f 1160 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
a40eb732
LP		 1161
1162 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1163 return r;
1164 }
1165
1166 /* Second, activate normal shutdown */
ead8e478 1167 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1168}
1169
4dfc092a
LP		 1170static void service_fix_output(Service *s) {
1171 assert(s);
1172
1173 /* If nothing has been explicitly configured, patch default
1174 * output in. If input is socket/tty we avoid this however,
1175 * since in that case we want output to default to the same
1176 * place as we read input from. */
1177
1178 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1179 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1180 s->exec_context.std_input == EXEC_INPUT_NULL)
1124fe6f 1181 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
4dfc092a
LP		 1182
1183 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1184 s->exec_context.std_input == EXEC_INPUT_NULL)
1124fe6f 1185 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
4dfc092a
LP		 1186}
1187
e537352b
LP		 1188static int service_load(Unit *u) {
1189 int r;
1190 Service *s = SERVICE(u);
1191
1192 assert(s);
1e2e8133 1193
5cb5a6ff 1194 /* Load a .service file */
e537352b 1195 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1196 return r;
1197
07459bb6 1198#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1199 /* Load a classic init script as a fallback, if we couldn't find anything */
ac155bb8 1200 if (u->load_state == UNIT_STUB)
e537352b 1201 if ((r = service_load_sysv(s)) < 0)
23a177ef 1202 return r;
07459bb6 1203#endif
d46de8a1 1204
23a177ef 1205 /* Still nothing found? Then let's give up */
ac155bb8 1206 if (u->load_state == UNIT_STUB)
23a177ef 1207 return -ENOENT;
034c6ed7 1208
23a177ef
LP		 1209 /* We were able to load something, then let's add in the
1210 * dropin directories. */
1211 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1212 return r;
23a177ef
LP		 1213
1214 /* This is a new unit? Then let's add in some extras */
ac155bb8 1215 if (u->load_state == UNIT_LOADED) {
4e2b0f9b
LP		 1216 service_fix_output(s);
1217
23a177ef
LP		 1218 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1219 return r;
1220
d686d8a9 1221 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1222 return r;
1223
07459bb6 1224#ifdef HAVE_SYSV_COMPAT
56d748b4 1225 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1226 return r;
07459bb6 1227#endif
05e343b7 1228
9fff8a1f
LP		 1229 if ((r = fsck_fix_order(s)) < 0)
1230 return r;
1231
ee0dd802 1232 if (s->bus_name)
05e343b7 1233 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1234 return r;
c952c6ec
LP		 1235
1236 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1237 s->notify_access = NOTIFY_MAIN;
a40eb732 1238
02c4ef9c
LP		 1239 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1240 s->notify_access = NOTIFY_MAIN;
1241
a40eb732 1242 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1243 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1244 return r;
1245
1124fe6f 1246 if (UNIT(s)->default_dependencies)
a40eb732
LP		 1247 if ((r = service_add_default_dependencies(s)) < 0)
1248 return r;
8e274523
LP		 1249 }
1250
243b1432 1251 return service_verify(s);
034c6ed7
LP		 1252}
1253
87f0e418 1254static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1255
5cb5a6ff 1256 ServiceExecCommand c;
87f0e418 1257 Service *s = SERVICE(u);
47be870b
LP		 1258 const char *prefix2;
1259 char *p2;
5cb5a6ff
LP		 1260
1261 assert(s);
1262
47be870b
LP		 1263 p2 = strappend(prefix, "\t");
1264 prefix2 = p2 ? p2 : prefix;
44d8db9e 1265
5cb5a6ff 1266 fprintf(f,
81a2b7ce 1267 "%sService State: %s\n"
f42806df
LP		 1268 "%sResult: %s\n"
1269 "%sReload Result: %s\n"
81a2b7ce 1270 "%sPermissionsStartOnly: %s\n"
8e274523 1271 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1272 "%sRemainAfterExit: %s\n"
3185a36b 1273 "%sGuessMainPID: %s\n"
c952c6ec 1274 "%sType: %s\n"
2cf3143a 1275 "%sRestart: %s\n"
c952c6ec 1276 "%sNotifyAccess: %s\n",
81a2b7ce 1277 prefix, service_state_to_string(s->state),
f42806df
LP		 1278 prefix, service_result_to_string(s->result),
1279 prefix, service_result_to_string(s->reload_result),
81a2b7ce 1280 prefix, yes_no(s->permissions_start_only),
8e274523 1281 prefix, yes_no(s->root_directory_start_only),
02ee865a 1282 prefix, yes_no(s->remain_after_exit),
3185a36b 1283 prefix, yes_no(s->guess_main_pid),
c952c6ec 1284 prefix, service_type_to_string(s->type),
2cf3143a 1285 prefix, service_restart_to_string(s->restart),
c952c6ec 1286 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1287
70123e68
LP		 1288 if (s->control_pid > 0)
1289 fprintf(f,
bb00e604
LP		 1290 "%sControl PID: %lu\n",
1291 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1292
1293 if (s->main_pid > 0)
1294 fprintf(f,
6dfa5494
LP		 1295 "%sMain PID: %lu\n"
1296 "%sMain PID Known: %s\n"
1297 "%sMain PID Alien: %s\n",
1298 prefix, (unsigned long) s->main_pid,
1299 prefix, yes_no(s->main_pid_known),
1300 prefix, yes_no(s->main_pid_alien));
70123e68 1301
034c6ed7
LP		 1302 if (s->pid_file)
1303 fprintf(f,
1304 "%sPIDFile: %s\n",
1305 prefix, s->pid_file);
1306
05e343b7
LP		 1307 if (s->bus_name)
1308 fprintf(f,
1309 "%sBusName: %s\n"
1310 "%sBus Name Good: %s\n",
1311 prefix, s->bus_name,
1312 prefix, yes_no(s->bus_name_good));
1313
5cb5a6ff
LP		 1314 exec_context_dump(&s->exec_context, f, prefix);
1315
e537352b 1316 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1317
44d8db9e
LP		 1318 if (!s->exec_command[c])
1319 continue;
1320
40d50879 1321 fprintf(f, "%s-> %s:\n",
94f04347 1322 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1323
1324 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1325 }
44d8db9e 1326
07459bb6 1327#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1328 if (s->sysv_path)
1329 fprintf(f,
23a177ef 1330 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1331 "%sSysV Init Script has LSB Header: %s\n"
1332 "%sSysVEnabled: %s\n",
23a177ef 1333 prefix, s->sysv_path,
9fff8a1f
LP		 1334 prefix, yes_no(s->sysv_has_lsb),
1335 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1336
1337 if (s->sysv_start_priority >= 0)
1338 fprintf(f,
9fff8a1f
LP		 1339 "%sSysVStartPriority: %i\n",
1340 prefix, s->sysv_start_priority);
2c4104f0 1341
8309400a
LP		 1342 if (s->sysv_runlevels)
1343 fprintf(f, "%sSysVRunLevels: %s\n",
1344 prefix, s->sysv_runlevels);
07459bb6 1345#endif
23a177ef 1346
9fff8a1f
LP		 1347 if (s->fsck_passno > 0)
1348 fprintf(f,
1349 "%sFsckPassNo: %i\n",
1350 prefix, s->fsck_passno);
1351
8c47c732
LP		 1352 if (s->status_text)
1353 fprintf(f, "%sStatus Text: %s\n",
1354 prefix, s->status_text);
1355
47be870b 1356 free(p2);
5cb5a6ff
LP		 1357}
1358
c5419d42 1359static int service_load_pid_file(Service *s, bool may_warn) {
034c6ed7 1360 char *k;
034c6ed7 1361 int r;
5925dd3c 1362 pid_t pid;
034c6ed7
LP		 1363
1364 assert(s);
1365
034c6ed7 1366 if (!s->pid_file)
13230d5d 1367 return -ENOENT;
034c6ed7 1368
5375410b 1369 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
c5419d42 1370 if (may_warn)
3a111838
MS		 1371 log_info("PID file %s not readable (yet?) after %s.",
1372 s->pid_file, service_state_to_string(s->state));
034c6ed7 1373 return r;
5375410b 1374 }
034c6ed7 1375
5925dd3c
LP		 1376 r = parse_pid(k, &pid);
1377 free(k);
034c6ed7 1378
5925dd3c
LP		 1379 if (r < 0)
1380 return r;
406eaf93 1381
5925dd3c 1382 if (kill(pid, 0) < 0 && errno != EPERM) {
c5419d42 1383 if (may_warn)
3a111838
MS		 1384 log_info("PID %lu read from file %s does not exist.",
1385 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1386 return -ESRCH;
1387 }
1388
db01f8b3
MS		 1389 if (s->main_pid_known) {
1390 if (pid == s->main_pid)
1391 return 0;
1392
1393 log_debug("Main PID changing: %lu -> %lu",
1394 (unsigned long) s->main_pid, (unsigned long) pid);
1395 service_unwatch_main_pid(s);
1396 s->main_pid_known = false;
3a111838
MS		 1397 } else
1398 log_debug("Main PID loaded: %lu", (unsigned long) pid);
db01f8b3 1399
5925dd3c 1400 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1401 return r;
1402
5925dd3c
LP		 1403 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1404 /* FIXME: we need to do something here */
1405 return r;
034c6ed7
LP		 1406
1407 return 0;
1408}
1409
4fbf50b3
LP		 1410static int service_search_main_pid(Service *s) {
1411 pid_t pid;
1412 int r;
1413
1414 assert(s);
1415
3185a36b
LP		 1416 /* If we know it anyway, don't ever fallback to unreliable
1417 * heuristics */
4fbf50b3
LP		 1418 if (s->main_pid_known)
1419 return 0;
1420
3185a36b
LP		 1421 if (!s->guess_main_pid)
1422 return 0;
1423
4fbf50b3
LP		 1424 assert(s->main_pid <= 0);
1425
1124fe6f 1426 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
4fbf50b3
LP		 1427 return -ENOENT;
1428
3a111838 1429 log_debug("Main PID guessed: %lu", (unsigned long) pid);
4fbf50b3
LP		 1430 if ((r = service_set_main_pid(s, pid)) < 0)
1431 return r;
1432
1433 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1434 /* FIXME: we need to do something here */
1435 return r;
1436
1437 return 0;
1438}
1439
6bda96a0 1440static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
ceee3d82 1441 Iterator i;
57020a3a 1442 Unit *u;
3e33402a
LP		 1443
1444 assert(s);
1445
f976f3f6
LP		 1446 /* Notifies all our sockets when we die */
1447
6cf6bbc2 1448 if (s->socket_fd >= 0)
57020a3a 1449 return;
3e33402a 1450
1124fe6f 1451 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
ac155bb8 1452 if (u->type == UNIT_SOCKET)
6bda96a0 1453 socket_notify_service_dead(SOCKET(u), failed_permanent);
3e33402a 1454
57020a3a 1455 return;
ceee3d82
LP		 1456}
1457
034c6ed7
LP		 1458static void service_set_state(Service *s, ServiceState state) {
1459 ServiceState old_state;
5cb5a6ff
LP		 1460 assert(s);
1461
034c6ed7 1462 old_state = s->state;
5cb5a6ff 1463 s->state = state;
034c6ed7 1464
3a111838
MS		 1465 service_unwatch_pid_file(s);
1466
034c6ed7
LP		 1467 if (state != SERVICE_START_PRE &&
1468 state != SERVICE_START &&
1469 state != SERVICE_START_POST &&
1470 state != SERVICE_RELOAD &&
1471 state != SERVICE_STOP &&
1472 state != SERVICE_STOP_SIGTERM &&
1473 state != SERVICE_STOP_SIGKILL &&
1474 state != SERVICE_STOP_POST &&
1475 state != SERVICE_FINAL_SIGTERM &&
1476 state != SERVICE_FINAL_SIGKILL &&
1477 state != SERVICE_AUTO_RESTART)
acbb0225 1478 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1479
7d55e835
LP		 1480 if (state != SERVICE_START &&
1481 state != SERVICE_START_POST &&
034c6ed7
LP		 1482 state != SERVICE_RUNNING &&
1483 state != SERVICE_RELOAD &&
1484 state != SERVICE_STOP &&
1485 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1486 state != SERVICE_STOP_SIGKILL) {
5e94833f 1487 service_unwatch_main_pid(s);
867b3b7d
LP		 1488 s->main_command = NULL;
1489 }
034c6ed7
LP		 1490
1491 if (state != SERVICE_START_PRE &&
1492 state != SERVICE_START &&
1493 state != SERVICE_START_POST &&
1494 state != SERVICE_RELOAD &&
1495 state != SERVICE_STOP &&
1496 state != SERVICE_STOP_SIGTERM &&
1497 state != SERVICE_STOP_SIGKILL &&
1498 state != SERVICE_STOP_POST &&
1499 state != SERVICE_FINAL_SIGTERM &&
e537352b 1500 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1501 service_unwatch_control_pid(s);
034c6ed7 1502 s->control_command = NULL;
a16e1123 1503 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1504 }
034c6ed7 1505
ceee3d82
LP		 1506 if (state == SERVICE_DEAD ||
1507 state == SERVICE_STOP ||
1508 state == SERVICE_STOP_SIGTERM ||
1509 state == SERVICE_STOP_SIGKILL ||
1510 state == SERVICE_STOP_POST ||
1511 state == SERVICE_FINAL_SIGTERM ||
1512 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1513 state == SERVICE_FAILED ||
ceee3d82 1514 state == SERVICE_AUTO_RESTART)
c2f34808 1515 service_notify_sockets_dead(s, false);
ceee3d82 1516
4f2d528d
LP		 1517 if (state != SERVICE_START_PRE &&
1518 state != SERVICE_START &&
6cf6bbc2
LP		 1519 state != SERVICE_START_POST &&
1520 state != SERVICE_RUNNING &&
1521 state != SERVICE_RELOAD &&
1522 state != SERVICE_STOP &&
1523 state != SERVICE_STOP_SIGTERM &&
1524 state != SERVICE_STOP_SIGKILL &&
1525 state != SERVICE_STOP_POST &&
1526 state != SERVICE_FINAL_SIGTERM &&
1527 state != SERVICE_FINAL_SIGKILL &&
1124fe6f 1528 !(state == SERVICE_DEAD && UNIT(s)->job)) {
4f2d528d 1529 service_close_socket_fd(s);
6cf6bbc2
LP		 1530 service_connection_unref(s);
1531 }
4f2d528d 1532
a6927d7f
MO		 1533 if (state == SERVICE_STOP)
1534 service_stop_watchdog(s);
1535
f6023656
LP		 1536 /* For the inactive states unit_notify() will trim the cgroup,
1537 * but for exit we have to do that ourselves... */
1124fe6f
MS		 1538 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1539 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
f6023656 1540
e537352b 1541 if (old_state != state)
1124fe6f 1542 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1543
f42806df
LP		 1544 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], s->reload_result == SERVICE_SUCCESS);
1545 s->reload_result = SERVICE_SUCCESS;
034c6ed7
LP		 1546}
1547
a16e1123
LP		 1548static int service_coldplug(Unit *u) {
1549 Service *s = SERVICE(u);
1550 int r;
1551
1552 assert(s);
1553 assert(s->state == SERVICE_DEAD);
1554
1555 if (s->deserialized_state != s->state) {
1556
1557 if (s->deserialized_state == SERVICE_START_PRE ||
1558 s->deserialized_state == SERVICE_START ||
1559 s->deserialized_state == SERVICE_START_POST ||
1560 s->deserialized_state == SERVICE_RELOAD ||
1561 s->deserialized_state == SERVICE_STOP ||
1562 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1563 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1564 s->deserialized_state == SERVICE_STOP_POST ||
1565 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1566 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1567 s->deserialized_state == SERVICE_AUTO_RESTART) {
1568
1569 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1570 usec_t k;
1571
1572 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1573
1574 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1575 return r;
1576 }
1577 }
a16e1123
LP		 1578
1579 if ((s->deserialized_state == SERVICE_START &&
1580 (s->type == SERVICE_FORKING ||
8c47c732 1581 s->type == SERVICE_DBUS ||
34e9ba66 1582 s->type == SERVICE_ONESHOT ||
8c47c732 1583 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1584 s->deserialized_state == SERVICE_START_POST ||
1585 s->deserialized_state == SERVICE_RUNNING ||
1586 s->deserialized_state == SERVICE_RELOAD ||
1587 s->deserialized_state == SERVICE_STOP ||
1588 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1589 s->deserialized_state == SERVICE_STOP_SIGKILL)
1590 if (s->main_pid > 0)
1591 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1592 return r;
1593
1594 if (s->deserialized_state == SERVICE_START_PRE ||
1595 s->deserialized_state == SERVICE_START ||
1596 s->deserialized_state == SERVICE_START_POST ||
1597 s->deserialized_state == SERVICE_RELOAD ||
1598 s->deserialized_state == SERVICE_STOP ||
1599 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1600 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1601 s->deserialized_state == SERVICE_STOP_POST ||
1602 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1603 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1604 if (s->control_pid > 0)
1605 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1606 return r;
1607
bb242b7b
MO		 1608 if (s->deserialized_state == SERVICE_START_POST ||
1609 s->deserialized_state == SERVICE_RUNNING)
1610 service_handle_watchdog(s);
1611
a16e1123
LP		 1612 service_set_state(s, s->deserialized_state);
1613 }
a16e1123
LP		 1614 return 0;
1615}
1616
44d8db9e
LP		 1617static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1618 Iterator i;
1619 int r;
1620 int *rfds = NULL;
1621 unsigned rn_fds = 0;
57020a3a 1622 Unit *u;
44d8db9e
LP		 1623
1624 assert(s);
1625 assert(fds);
1626 assert(n_fds);
1627
6cf6bbc2
LP		 1628 if (s->socket_fd >= 0)
1629 return 0;
1630
1124fe6f 1631 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
44d8db9e
LP		 1632 int *cfds;
1633 unsigned cn_fds;
57020a3a
LP		 1634 Socket *sock;
1635
ac155bb8 1636 if (u->type != UNIT_SOCKET)
57020a3a
LP		 1637 continue;
1638
1639 sock = SOCKET(u);
44d8db9e 1640
47be870b 1641 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1642 goto fail;
1643
1644 if (!cfds)
1645 continue;
1646
1647 if (!rfds) {
1648 rfds = cfds;
1649 rn_fds = cn_fds;
1650 } else {
1651 int *t;
1652
1653 if (!(t = new(int, rn_fds+cn_fds))) {
1654 free(cfds);
1655 r = -ENOMEM;
1656 goto fail;
1657 }
1658
9c1b183c
LP		 1659 memcpy(t, rfds, rn_fds * sizeof(int));
1660 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1661 free(rfds);
1662 free(cfds);
1663
1664 rfds = t;
1665 rn_fds = rn_fds+cn_fds;
1666 }
1667 }
1668
1669 *fds = rfds;
1670 *n_fds = rn_fds;
3e33402a 1671
44d8db9e
LP		 1672 return 0;
1673
1674fail:
1675 free(rfds);
3e33402a 1676
44d8db9e
LP		 1677 return r;
1678}
1679
81a2b7ce
LP		 1680static int service_spawn(
1681 Service *s,
1682 ExecCommand *c,
1683 bool timeout,
1684 bool pass_fds,
1685 bool apply_permissions,
1686 bool apply_chroot,
1e3ad081 1687 bool apply_tty_stdin,
c952c6ec 1688 bool set_notify_socket,
81a2b7ce
LP		 1689 pid_t *_pid) {
1690
034c6ed7
LP		 1691 pid_t pid;
1692 int r;
6cf6bbc2 1693 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1694 unsigned n_fds = 0, n_env = 0;
1695 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1696
1697 assert(s);
1698 assert(c);
1699 assert(_pid);
1700
6cf6bbc2
LP		 1701 if (pass_fds ||
1702 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1703 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1704 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1705
4f2d528d
LP		 1706 if (s->socket_fd >= 0) {
1707 fds = &s->socket_fd;
1708 n_fds = 1;
6cf6bbc2
LP		 1709 } else {
1710 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1711 goto fail;
1712
1713 fds = fdsbuf;
1714 }
4f2d528d 1715 }
44d8db9e 1716
e558336f 1717 if (timeout && s->timeout_usec) {
acbb0225 1718 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1719 goto fail;
1720 } else
acbb0225 1721 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1722
9e2f7c11
LP		 1723 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1724 r = -ENOMEM;
1725 goto fail;
1726 }
1727
9865f3b4 1728 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1729 r = -ENOMEM;
1730 goto fail;
1731 }
c952c6ec 1732
2105e76a 1733 if (set_notify_socket)
1124fe6f 1734 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
c952c6ec
LP		 1735 r = -ENOMEM;
1736 goto fail;
1737 }
1738
2105e76a
LP		 1739 if (s->main_pid > 0)
1740 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1741 r = -ENOMEM;
1742 goto fail;
1743 }
2105e76a 1744
6e0bcc98
MO		 1745 if (s->watchdog_usec > 0)
1746 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1747 r = -ENOMEM;
1748 goto fail;
1749 }
1750
2105e76a 1751 if (!(final_env = strv_env_merge(2,
1124fe6f 1752 UNIT(s)->manager->environment,
2105e76a
LP		 1753 our_env,
1754 NULL))) {
1755 r = -ENOMEM;
1756 goto fail;
1757 }
c952c6ec 1758
9e2f7c11
LP		 1759 r = exec_spawn(c,
1760 argv,
1761 &s->exec_context,
1762 fds, n_fds,
2105e76a 1763 final_env,
9e2f7c11
LP		 1764 apply_permissions,
1765 apply_chroot,
1e3ad081 1766 apply_tty_stdin,
1124fe6f
MS		 1767 UNIT(s)->manager->confirm_spawn,
1768 UNIT(s)->cgroup_bondings,
1769 UNIT(s)->cgroup_attributes,
9e2f7c11
LP		 1770 &pid);
1771
9e2f7c11 1772 if (r < 0)
034c6ed7
LP		 1773 goto fail;
1774
4f2d528d 1775
87f0e418 1776 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1777 /* FIXME: we need to do something here */
1778 goto fail;
1779
2105e76a
LP		 1780 free(fdsbuf);
1781 strv_free(argv);
1782 strv_free(our_env);
1783 strv_free(final_env);
1784
034c6ed7
LP		 1785 *_pid = pid;
1786
5cb5a6ff 1787 return 0;
034c6ed7
LP		 1788
1789fail:
2105e76a 1790 free(fdsbuf);
c952c6ec 1791 strv_free(argv);
2105e76a
LP		 1792 strv_free(our_env);
1793 strv_free(final_env);
c952c6ec 1794
034c6ed7 1795 if (timeout)
acbb0225 1796 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1797
1798 return r;
1799}
1800
80876c20
LP		 1801static int main_pid_good(Service *s) {
1802 assert(s);
1803
1804 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1805 * don't know */
1806
1807 /* If we know the pid file, then lets just check if it is
1808 * still valid */
6dfa5494
LP		 1809 if (s->main_pid_known) {
1810
1811 /* If it's an alien child let's check if it is still
1812 * alive ... */
1813 if (s->main_pid_alien)
1814 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1815
1816 /* .. otherwise assume we'll get a SIGCHLD for it,
1817 * which we really should wait for to collect exit
1818 * status and code */
80876c20 1819 return s->main_pid > 0;
6dfa5494 1820 }
80876c20
LP		 1821
1822 /* We don't know the pid */
1823 return -EAGAIN;
1824}
1825
1826static int control_pid_good(Service *s) {
1827 assert(s);
1828
1829 return s->control_pid > 0;
1830}
1831
1832static int cgroup_good(Service *s) {
1833 int r;
1834
1835 assert(s);
1836
1124fe6f 1837 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
80876c20
LP		 1838 return r;
1839
1840 return !r;
1841}
1842
f42806df 1843static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
034c6ed7
LP		 1844 int r;
1845 assert(s);
1846
f42806df
LP		 1847 if (f != SERVICE_SUCCESS)
1848 s->result = f;
034c6ed7
LP		 1849
1850 if (allow_restart &&
47342320 1851 !s->forbid_restart &&
034c6ed7 1852 (s->restart == SERVICE_RESTART_ALWAYS ||
f42806df
LP		 1853 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1854 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1855 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1856 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
034c6ed7 1857
f42806df
LP		 1858 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1859 if (r < 0)
034c6ed7
LP		 1860 goto fail;
1861
1862 service_set_state(s, SERVICE_AUTO_RESTART);
1863 } else
f42806df 1864 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1865
47342320
LP		 1866 s->forbid_restart = false;
1867
034c6ed7
LP		 1868 return;
1869
1870fail:
1124fe6f 1871 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
f42806df 1872 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
034c6ed7
LP		 1873}
1874
f42806df 1875static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
034c6ed7 1876
f42806df 1877static void service_enter_stop_post(Service *s, ServiceResult f) {
034c6ed7
LP		 1878 int r;
1879 assert(s);
1880
f42806df
LP		 1881 if (f != SERVICE_SUCCESS)
1882 s->result = f;
034c6ed7 1883
5e94833f
LP		 1884 service_unwatch_control_pid(s);
1885
80876c20 1886 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1887 s->control_command_id = SERVICE_EXEC_STOP_POST;
1888
81a2b7ce
LP		 1889 if ((r = service_spawn(s,
1890 s->control_command,
1891 true,
1892 false,
1893 !s->permissions_start_only,
1894 !s->root_directory_start_only,
1e3ad081 1895 true,
c952c6ec 1896 false,
81a2b7ce 1897 &s->control_pid)) < 0)
034c6ed7
LP		 1898 goto fail;
1899
d6ea93e3 1900
80876c20
LP		 1901 service_set_state(s, SERVICE_STOP_POST);
1902 } else
f42806df 1903 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 1904
1905 return;
1906
1907fail:
1124fe6f 1908 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 1909 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 1910}
1911
f42806df 1912static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
034c6ed7 1913 int r;
ca949c9d
LP		 1914 Set *pid_set = NULL;
1915 bool wait_for_exit = false;
034c6ed7
LP		 1916
1917 assert(s);
1918
f42806df
LP		 1919 if (f != SERVICE_SUCCESS)
1920 s->result = f;
034c6ed7 1921
2e22afe9
LP		 1922 if (s->exec_context.kill_mode != KILL_NONE) {
1923 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1924
ca949c9d 1925 if (s->main_pid > 0) {
cd25cce9 1926 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1927 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1928 else
6dfa5494 1929 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1930 }
1931
ca949c9d 1932 if (s->control_pid > 0) {
cd25cce9 1933 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1934 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1935 else
1936 wait_for_exit = true;
1937 }
50159e6a 1938
ca949c9d 1939 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1940
ca949c9d
LP		 1941 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1942 r = -ENOMEM;
50159e6a 1943 goto fail;
ca949c9d
LP		 1944 }
1945
1946 /* Exclude the main/control pids from being killed via the cgroup */
1947 if (s->main_pid > 0)
1948 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1949 goto fail;
1950
1951 if (s->control_pid > 0)
1952 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1953 goto fail;
1954
1124fe6f 1955 if ((r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1956 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1957 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1958 } else if (r > 0)
ca949c9d
LP		 1959 wait_for_exit = true;
1960
1961 set_free(pid_set);
da19d5c1 1962 pid_set = NULL;
50159e6a 1963 }
d6ea93e3 1964 }
034c6ed7 1965
ca949c9d 1966 if (wait_for_exit) {
e558336f
LP		 1967 if (s->timeout_usec > 0)
1968 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1969 goto fail;
d6ea93e3 1970
80876c20
LP		 1971 service_set_state(s, state);
1972 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 1973 service_enter_stop_post(s, SERVICE_SUCCESS);
80876c20 1974 else
f42806df 1975 service_enter_dead(s, SERVICE_SUCCESS, true);
034c6ed7
LP		 1976
1977 return;
1978
1979fail:
1124fe6f 1980 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
034c6ed7 1981
80876c20 1982 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 1983 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
034c6ed7 1984 else
f42806df 1985 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
ca949c9d
LP		 1986
1987 if (pid_set)
1988 set_free(pid_set);
034c6ed7
LP		 1989}
1990
f42806df 1991static void service_enter_stop(Service *s, ServiceResult f) {
034c6ed7 1992 int r;
5925dd3c 1993
034c6ed7
LP		 1994 assert(s);
1995
f42806df
LP		 1996 if (f != SERVICE_SUCCESS)
1997 s->result = f;
034c6ed7 1998
5e94833f
LP		 1999 service_unwatch_control_pid(s);
2000
80876c20 2001 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 2002 s->control_command_id = SERVICE_EXEC_STOP;
2003
81a2b7ce
LP		 2004 if ((r = service_spawn(s,
2005 s->control_command,
2006 true,
2007 false,
2008 !s->permissions_start_only,
2009 !s->root_directory_start_only,
c952c6ec 2010 false,
1e3ad081 2011 false,
e55224ca 2012 &s->control_pid)) < 0)
034c6ed7
LP		 2013 goto fail;
2014
80876c20
LP		 2015 service_set_state(s, SERVICE_STOP);
2016 } else
f42806df 2017 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 2018
2019 return;
2020
2021fail:
1124fe6f 2022 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2023 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2024}
2025
f42806df 2026static void service_enter_running(Service *s, ServiceResult f) {
4eab639f 2027 int main_pid_ok, cgroup_ok;
80876c20
LP		 2028 assert(s);
2029
f42806df
LP		 2030 if (f != SERVICE_SUCCESS)
2031 s->result = f;
80876c20 2032
4eab639f
LP		 2033 main_pid_ok = main_pid_good(s);
2034 cgroup_ok = cgroup_good(s);
2035
2036 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 2037 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 2038 service_set_state(s, SERVICE_RUNNING);
02ee865a 2039 else if (s->remain_after_exit)
80876c20
LP		 2040 service_set_state(s, SERVICE_EXITED);
2041 else
f42806df 2042 service_enter_stop(s, SERVICE_SUCCESS);
80876c20
LP		 2043}
2044
034c6ed7
LP		 2045static void service_enter_start_post(Service *s) {
2046 int r;
2047 assert(s);
2048
5e94833f
LP		 2049 service_unwatch_control_pid(s);
2050
bb242b7b
MO		 2051 if (s->watchdog_usec > 0)
2052 service_reset_watchdog(s);
2053
80876c20 2054 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2055 s->control_command_id = SERVICE_EXEC_START_POST;
2056
81a2b7ce
LP		 2057 if ((r = service_spawn(s,
2058 s->control_command,
2059 true,
2060 false,
2061 !s->permissions_start_only,
2062 !s->root_directory_start_only,
c952c6ec 2063 false,
1e3ad081 2064 false,
e55224ca 2065 &s->control_pid)) < 0)
034c6ed7
LP		 2066 goto fail;
2067
80876c20
LP		 2068 service_set_state(s, SERVICE_START_POST);
2069 } else
f42806df 2070 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2071
2072 return;
2073
2074fail:
1124fe6f 2075 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2076 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2077}
2078
2079static void service_enter_start(Service *s) {
2080 pid_t pid;
2081 int r;
867b3b7d 2082 ExecCommand *c;
034c6ed7
LP		 2083
2084 assert(s);
2085
2086 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2087 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2088
80876c20
LP		 2089 if (s->type == SERVICE_FORKING)
2090 service_unwatch_control_pid(s);
2091 else
2092 service_unwatch_main_pid(s);
2093
8f53a7b8
LP		 2094 /* We want to ensure that nobody leaks processes from
2095 * START_PRE here, so let's go on a killing spree, People
2096 * should not spawn long running processes from START_PRE. */
1124fe6f 2097 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
8f53a7b8 2098
867b3b7d
LP		 2099 if (s->type == SERVICE_FORKING) {
2100 s->control_command_id = SERVICE_EXEC_START;
2101 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2102
2103 s->main_command = NULL;
2104 } else {
2105 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2106 s->control_command = NULL;
2107
2108 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2109 }
34e9ba66 2110
81a2b7ce 2111 if ((r = service_spawn(s,
867b3b7d 2112 c,
8c47c732 2113 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2114 true,
2115 true,
2116 true,
1e3ad081 2117 true,
c952c6ec 2118 s->notify_access != NOTIFY_NONE,
81a2b7ce 2119 &pid)) < 0)
034c6ed7
LP		 2120 goto fail;
2121
2122 if (s->type == SERVICE_SIMPLE) {
2123 /* For simple services we immediately start
2124 * the START_POST binaries. */
2125
5925dd3c 2126 service_set_main_pid(s, pid);
034c6ed7
LP		 2127 service_enter_start_post(s);
2128
2129 } else if (s->type == SERVICE_FORKING) {
2130
2131 /* For forking services we wait until the start
2132 * process exited. */
2133
e55224ca 2134 s->control_pid = pid;
80876c20
LP		 2135 service_set_state(s, SERVICE_START);
2136
34e9ba66 2137 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2138 s->type == SERVICE_DBUS ||
2139 s->type == SERVICE_NOTIFY) {
7d55e835 2140
34e9ba66 2141 /* For oneshot services we wait until the start
7d55e835
LP		 2142 * process exited, too, but it is our main process. */
2143
05e343b7 2144 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2145 * but wait for the bus name to appear on the
2146 * bus. Notify services are similar. */
05e343b7 2147
5925dd3c 2148 service_set_main_pid(s, pid);
80876c20 2149 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2150 } else
2151 assert_not_reached("Unknown service type");
2152
2153 return;
2154
2155fail:
1124fe6f 2156 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2157 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2158}
2159
2160static void service_enter_start_pre(Service *s) {
2161 int r;
2162
2163 assert(s);
2164
5e94833f
LP		 2165 service_unwatch_control_pid(s);
2166
80876c20 2167 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
8f53a7b8
LP		 2168
2169 /* Before we start anything, let's clear up what might
2170 * be left from previous runs. */
1124fe6f 2171 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
8f53a7b8 2172
867b3b7d
LP		 2173 s->control_command_id = SERVICE_EXEC_START_PRE;
2174
81a2b7ce
LP		 2175 if ((r = service_spawn(s,
2176 s->control_command,
2177 true,
2178 false,
2179 !s->permissions_start_only,
2180 !s->root_directory_start_only,
1e3ad081 2181 true,
c952c6ec 2182 false,
e55224ca 2183 &s->control_pid)) < 0)
034c6ed7
LP		 2184 goto fail;
2185
80876c20
LP		 2186 service_set_state(s, SERVICE_START_PRE);
2187 } else
034c6ed7
LP		 2188 service_enter_start(s);
2189
2190 return;
2191
2192fail:
1124fe6f 2193 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2194 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
034c6ed7
LP		 2195}
2196
2197static void service_enter_restart(Service *s) {
2198 int r;
398ef8ba
LP		 2199 DBusError error;
2200
034c6ed7 2201 assert(s);
398ef8ba 2202 dbus_error_init(&error);
034c6ed7 2203
1124fe6f 2204 if (UNIT(s)->job) {
2edfa366
LP		 2205 log_info("Job pending for unit, delaying automatic restart.");
2206
2207 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2208 goto fail;
2209 }
2210
48bb5876
DW		 2211 /* Any units that are bound to this service must also be
2212 * restarted. We use JOB_RESTART (instead of the more obvious
2213 * JOB_START) here so that those dependency jobs will be added
2214 * as well. */
2215 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2216 if (r < 0)
034c6ed7
LP		 2217 goto fail;
2218
1124fe6f 2219 log_debug("%s scheduled restart job.", UNIT(s)->id);
034c6ed7
LP		 2220 return;
2221
2222fail:
1124fe6f 2223 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
f42806df 2224 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
398ef8ba
LP		 2225
2226 dbus_error_free(&error);
034c6ed7
LP		 2227}
2228
2229static void service_enter_reload(Service *s) {
2230 int r;
2231
2232 assert(s);
2233
5e94833f
LP		 2234 service_unwatch_control_pid(s);
2235
80876c20 2236 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2237 s->control_command_id = SERVICE_EXEC_RELOAD;
2238
81a2b7ce
LP		 2239 if ((r = service_spawn(s,
2240 s->control_command,
2241 true,
2242 false,
2243 !s->permissions_start_only,
2244 !s->root_directory_start_only,
c952c6ec 2245 false,
1e3ad081 2246 false,
e55224ca 2247 &s->control_pid)) < 0)
034c6ed7
LP		 2248 goto fail;
2249
80876c20
LP		 2250 service_set_state(s, SERVICE_RELOAD);
2251 } else
f42806df 2252 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2253
2254 return;
2255
2256fail:
1124fe6f 2257 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
f42806df
LP		 2258 s->reload_result = SERVICE_FAILURE_RESOURCES;
2259 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2260}
2261
f42806df 2262static void service_run_next_control(Service *s) {
034c6ed7
LP		 2263 int r;
2264
2265 assert(s);
2266 assert(s->control_command);
2267 assert(s->control_command->command_next);
2268
34e9ba66 2269 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2270
34e9ba66 2271 s->control_command = s->control_command->command_next;
5e94833f
LP		 2272 service_unwatch_control_pid(s);
2273
81a2b7ce
LP		 2274 if ((r = service_spawn(s,
2275 s->control_command,
2276 true,
2277 false,
2278 !s->permissions_start_only,
2279 !s->root_directory_start_only,
5830833f
LP		 2280 s->control_command_id == SERVICE_EXEC_START_PRE ||
2281 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2282 false,
e55224ca 2283 &s->control_pid)) < 0)
034c6ed7
LP		 2284 goto fail;
2285
2286 return;
2287
2288fail:
1124fe6f 2289 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2290
80876c20 2291 if (s->state == SERVICE_START_PRE)
f42806df 2292 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
80876c20 2293 else if (s->state == SERVICE_STOP)
f42806df 2294 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7 2295 else if (s->state == SERVICE_STOP_POST)
f42806df 2296 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
e2f3b44c 2297 else if (s->state == SERVICE_RELOAD) {
f42806df
LP		 2298 s->reload_result = SERVICE_FAILURE_RESOURCES;
2299 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c 2300 } else
f42806df 2301 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
5cb5a6ff
LP		 2302}
2303
f42806df 2304static void service_run_next_main(Service *s) {
34e9ba66
LP		 2305 pid_t pid;
2306 int r;
2307
2308 assert(s);
867b3b7d
LP		 2309 assert(s->main_command);
2310 assert(s->main_command->command_next);
2311 assert(s->type == SERVICE_ONESHOT);
34e9ba66 2312
867b3b7d 2313 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2314 service_unwatch_main_pid(s);
2315
2316 if ((r = service_spawn(s,
867b3b7d 2317 s->main_command,
34e9ba66
LP		 2318 false,
2319 true,
2320 true,
2321 true,
2322 true,
2323 s->notify_access != NOTIFY_NONE,
2324 &pid)) < 0)
2325 goto fail;
2326
2327 service_set_main_pid(s, pid);
2328
2329 return;
2330
2331fail:
1124fe6f 2332 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
f42806df 2333 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
34e9ba66
LP		 2334}
2335
4b939747
MO		 2336static int service_start_limit_test(Service *s) {
2337 assert(s);
2338
2339 if (ratelimit_test(&s->start_limit))
2340 return 0;
2341
2342 switch (s->start_limit_action) {
2343
2344 case SERVICE_START_LIMIT_NONE:
2345 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2346 break;
2347
2348 case SERVICE_START_LIMIT_REBOOT: {
2349 DBusError error;
2350 int r;
2351
2352 dbus_error_init(&error);
2353
2354 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2355
2356 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2357 if (r < 0) {
2358 log_error("Failed to reboot: %s.", bus_error(&error, r));
2359 dbus_error_free(&error);
2360 }
2361
2362 break;
2363 }
2364
2365 case SERVICE_START_LIMIT_REBOOT_FORCE:
6bda96a0 2366 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
4b939747
MO		 2367 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2368 break;
2369
2370 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2371 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2372 reboot(RB_AUTOBOOT);
2373 break;
2374
2375 default:
2376 log_error("start limit action=%i", s->start_limit_action);
2377 assert_not_reached("Unknown StartLimitAction.");
2378 }
2379
2380 return -ECANCELED;
2381}
2382
87f0e418
LP		 2383static int service_start(Unit *u) {
2384 Service *s = SERVICE(u);
4b939747 2385 int r;
5cb5a6ff
LP		 2386
2387 assert(s);
2388
034c6ed7
LP		 2389 /* We cannot fulfill this request right now, try again later
2390 * please! */
2391 if (s->state == SERVICE_STOP ||
2392 s->state == SERVICE_STOP_SIGTERM ||
2393 s->state == SERVICE_STOP_SIGKILL ||
2394 s->state == SERVICE_STOP_POST ||
2395 s->state == SERVICE_FINAL_SIGTERM ||
2396 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2397 return -EAGAIN;
2398
034c6ed7
LP		 2399 /* Already on it! */
2400 if (s->state == SERVICE_START_PRE ||
2401 s->state == SERVICE_START ||
2402 s->state == SERVICE_START_POST)
2403 return 0;
2404
fdf20a31 2405 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2406
1e2e8133 2407 /* Make sure we don't enter a busy loop of some kind. */
4b939747 2408 r = service_start_limit_test(s);
c2f34808
MS		 2409 if (r < 0) {
2410 service_notify_sockets_dead(s, true);
4b939747 2411 return r;
c2f34808 2412 }
1e2e8133 2413
f42806df
LP		 2414 s->result = SERVICE_SUCCESS;
2415 s->reload_result = SERVICE_SUCCESS;
034c6ed7 2416 s->main_pid_known = false;
6dfa5494 2417 s->main_pid_alien = false;
47342320 2418 s->forbid_restart = false;
034c6ed7
LP		 2419
2420 service_enter_start_pre(s);
2421 return 0;
5cb5a6ff
LP		 2422}
2423
87f0e418
LP		 2424static int service_stop(Unit *u) {
2425 Service *s = SERVICE(u);
5cb5a6ff
LP		 2426
2427 assert(s);
2428
3f6c78dc
LP		 2429 /* This is a user request, so don't do restarts on this
2430 * shutdown. */
47342320 2431 s->forbid_restart = true;
034c6ed7 2432
e537352b
LP		 2433 /* Already on it */
2434 if (s->state == SERVICE_STOP ||
2435 s->state == SERVICE_STOP_SIGTERM ||
2436 s->state == SERVICE_STOP_SIGKILL ||
2437 s->state == SERVICE_STOP_POST ||
2438 s->state == SERVICE_FINAL_SIGTERM ||
2439 s->state == SERVICE_FINAL_SIGKILL)
2440 return 0;
2441
3f6c78dc 2442 /* Don't allow a restart */
034c6ed7
LP		 2443 if (s->state == SERVICE_AUTO_RESTART) {
2444 service_set_state(s, SERVICE_DEAD);
2445 return 0;
2446 }
2447
3f6c78dc
LP		 2448 /* If there's already something running we go directly into
2449 * kill mode. */
2450 if (s->state == SERVICE_START_PRE ||
2451 s->state == SERVICE_START ||
2452 s->state == SERVICE_START_POST ||
2453 s->state == SERVICE_RELOAD) {
f42806df 2454 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
3f6c78dc
LP		 2455 return 0;
2456 }
5cb5a6ff 2457
3f6c78dc
LP		 2458 assert(s->state == SERVICE_RUNNING ||
2459 s->state == SERVICE_EXITED);
3a762661 2460
f42806df 2461 service_enter_stop(s, SERVICE_SUCCESS);
5cb5a6ff
LP		 2462 return 0;
2463}
2464
87f0e418
LP		 2465static int service_reload(Unit *u) {
2466 Service *s = SERVICE(u);
034c6ed7
LP		 2467
2468 assert(s);
2469
80876c20 2470 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2471
2472 service_enter_reload(s);
5cb5a6ff
LP		 2473 return 0;
2474}
2475
87f0e418
LP		 2476static bool service_can_reload(Unit *u) {
2477 Service *s = SERVICE(u);
034c6ed7
LP		 2478
2479 assert(s);
2480
2481 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2482}
2483
a16e1123
LP		 2484static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2485 Service *s = SERVICE(u);
2486
2487 assert(u);
2488 assert(f);
2489 assert(fds);
2490
2491 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
f42806df
LP		 2492 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2493 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
a16e1123
LP		 2494
2495 if (s->control_pid > 0)
5925dd3c 2496 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2497
5925dd3c
LP		 2498 if (s->main_pid_known && s->main_pid > 0)
2499 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2500
2501 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2502
3a2776bc
LP		 2503 if (s->status_text)
2504 unit_serialize_item(u, f, "status-text", s->status_text);
2505
cfc4eb4c
LP		 2506 /* FIXME: There's a minor uncleanliness here: if there are
2507 * multiple commands attached here, we will start from the
2508 * first one again */
a16e1123 2509 if (s->control_command_id >= 0)
825636e5 2510 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2511
2512 if (s->socket_fd >= 0) {
2513 int copy;
2514
2515 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2516 return copy;
2517
2518 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2519 }
2520
ecdbca40
LP		 2521 if (s->main_exec_status.pid > 0) {
2522 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2523 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2524 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2525
799fd0fd 2526 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2527 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2528 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2529 }
2530 }
a6927d7f
MO		 2531 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2532 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
ecdbca40 2533
a16e1123
LP		 2534 return 0;
2535}
2536
2537static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2538 Service *s = SERVICE(u);
a16e1123
LP		 2539
2540 assert(u);
2541 assert(key);
2542 assert(value);
2543 assert(fds);
2544
2545 if (streq(key, "state")) {
2546 ServiceState state;
2547
2548 if ((state = service_state_from_string(value)) < 0)
2549 log_debug("Failed to parse state value %s", value);
2550 else
2551 s->deserialized_state = state;
f42806df
LP		 2552 } else if (streq(key, "result")) {
2553 ServiceResult f;
2554
2555 f = service_result_from_string(value);
2556 if (f < 0)
2557 log_debug("Failed to parse result value %s", value);
2558 else if (f != SERVICE_SUCCESS)
2559 s->result = f;
2560
2561 } else if (streq(key, "reload-result")) {
2562 ServiceResult f;
2563
2564 f = service_result_from_string(value);
2565 if (f < 0)
2566 log_debug("Failed to parse reload result value %s", value);
2567 else if (f != SERVICE_SUCCESS)
2568 s->reload_result = f;
a16e1123 2569
a16e1123 2570 } else if (streq(key, "control-pid")) {
5925dd3c 2571 pid_t pid;
a16e1123 2572
e364ad06 2573 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2574 log_debug("Failed to parse control-pid value %s", value);
2575 else
e55224ca 2576 s->control_pid = pid;
a16e1123 2577 } else if (streq(key, "main-pid")) {
5925dd3c 2578 pid_t pid;
a16e1123 2579
e364ad06 2580 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2581 log_debug("Failed to parse main-pid value %s", value);
2582 else
5925dd3c 2583 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2584 } else if (streq(key, "main-pid-known")) {
2585 int b;
2586
2587 if ((b = parse_boolean(value)) < 0)
2588 log_debug("Failed to parse main-pid-known value %s", value);
2589 else
2590 s->main_pid_known = b;
3a2776bc
LP		 2591 } else if (streq(key, "status-text")) {
2592 char *t;
2593
2594 if ((t = strdup(value))) {
2595 free(s->status_text);
2596 s->status_text = t;
2597 }
2598
a16e1123
LP		 2599 } else if (streq(key, "control-command")) {
2600 ServiceExecCommand id;
2601
2602 if ((id = service_exec_command_from_string(value)) < 0)
2603 log_debug("Failed to parse exec-command value %s", value);
2604 else {
2605 s->control_command_id = id;
2606 s->control_command = s->exec_command[id];
2607 }
2608 } else if (streq(key, "socket-fd")) {
2609 int fd;
2610
2611 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2612 log_debug("Failed to parse socket-fd value %s", value);
2613 else {
2614
2615 if (s->socket_fd >= 0)
2616 close_nointr_nofail(s->socket_fd);
2617 s->socket_fd = fdset_remove(fds, fd);
2618 }
ecdbca40
LP		 2619 } else if (streq(key, "main-exec-status-pid")) {
2620 pid_t pid;
2621
e364ad06 2622 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2623 log_debug("Failed to parse main-exec-status-pid value %s", value);
2624 else
2625 s->main_exec_status.pid = pid;
2626 } else if (streq(key, "main-exec-status-code")) {
2627 int i;
2628
e364ad06 2629 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2630 log_debug("Failed to parse main-exec-status-code value %s", value);
2631 else
2632 s->main_exec_status.code = i;
2633 } else if (streq(key, "main-exec-status-status")) {
2634 int i;
2635
e364ad06 2636 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2637 log_debug("Failed to parse main-exec-status-status value %s", value);
2638 else
2639 s->main_exec_status.status = i;
799fd0fd
LP		 2640 } else if (streq(key, "main-exec-status-start"))
2641 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2642 else if (streq(key, "main-exec-status-exit"))
2643 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
a6927d7f
MO		 2644 else if (streq(key, "watchdog-timestamp"))
2645 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
799fd0fd 2646 else
a16e1123
LP		 2647 log_debug("Unknown serialization key '%s'", key);
2648
2649 return 0;
2650}
2651
87f0e418
LP		 2652static UnitActiveState service_active_state(Unit *u) {
2653 assert(u);
5cb5a6ff 2654
acbb0225 2655 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2656}
2657
10a94420
LP		 2658static const char *service_sub_state_to_string(Unit *u) {
2659 assert(u);
2660
2661 return service_state_to_string(SERVICE(u)->state);
2662}
2663
701cc384
LP		 2664static bool service_check_gc(Unit *u) {
2665 Service *s = SERVICE(u);
2666
2667 assert(s);
2668
6d55002a
LP		 2669 /* Never clean up services that still have a process around,
2670 * even if the service is formally dead. */
2671 if (cgroup_good(s) > 0 ||
2672 main_pid_good(s) > 0 ||
2673 control_pid_good(s) > 0)
2674 return true;
2675
2676#ifdef HAVE_SYSV_COMPAT
2677 if (s->sysv_path)
2678 return true;
07459bb6 2679#endif
701cc384 2680
6d55002a
LP		 2681 return false;
2682}
2683
701cc384
LP		 2684static bool service_check_snapshot(Unit *u) {
2685 Service *s = SERVICE(u);
2686
2687 assert(s);
2688
2689 return !s->got_socket_fd;
2690}
2691
3a111838
MS		 2692static int service_retry_pid_file(Service *s) {
2693 int r;
2694
2695 assert(s->pid_file);
2696 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2697
2698 r = service_load_pid_file(s, false);
2699 if (r < 0)
2700 return r;
2701
2702 service_unwatch_pid_file(s);
2703
f42806df 2704 service_enter_running(s, SERVICE_SUCCESS);
3a111838
MS		 2705 return 0;
2706}
2707
2708static int service_watch_pid_file(Service *s) {
2709 int r;
2710
1124fe6f 2711 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
57020a3a 2712 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
3a111838
MS		 2713 if (r < 0)
2714 goto fail;
2715
2716 /* the pidfile might have appeared just before we set the watch */
2717 service_retry_pid_file(s);
2718
2719 return 0;
2720fail:
2721 log_error("Failed to set a watch for %s's PID file %s: %s",
1124fe6f 2722 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
3a111838
MS		 2723 service_unwatch_pid_file(s);
2724 return r;
2725}
2726
2727static int service_demand_pid_file(Service *s) {
2728 PathSpec *ps;
2729
2730 assert(s->pid_file);
2731 assert(!s->pid_file_pathspec);
2732
2733 ps = new0(PathSpec, 1);
2734 if (!ps)
2735 return -ENOMEM;
2736
2737 ps->path = strdup(s->pid_file);
2738 if (!ps->path) {
2739 free(ps);
2740 return -ENOMEM;
2741 }
2742
2743 path_kill_slashes(ps->path);
2744
2745 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2746 * keep their PID file open all the time. */
2747 ps->type = PATH_MODIFIED;
2748 ps->inotify_fd = -1;
2749
2750 s->pid_file_pathspec = ps;
2751
2752 return service_watch_pid_file(s);
2753}
2754
2755static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2756 Service *s = SERVICE(u);
2757
2758 assert(s);
2759 assert(fd >= 0);
2760 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2761 assert(s->pid_file_pathspec);
57020a3a 2762 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
3a111838 2763
ac155bb8 2764 log_debug("inotify event for %s", u->id);
3a111838 2765
57020a3a 2766 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
3a111838
MS		 2767 goto fail;
2768
2769 if (service_retry_pid_file(s) == 0)
2770 return;
2771
2772 if (service_watch_pid_file(s) < 0)
2773 goto fail;
2774
2775 return;
2776fail:
2777 service_unwatch_pid_file(s);
f42806df 2778 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 2779}
2780
87f0e418
LP		 2781static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2782 Service *s = SERVICE(u);
f42806df 2783 ServiceResult f;
5cb5a6ff
LP		 2784
2785 assert(s);
034c6ed7
LP		 2786 assert(pid >= 0);
2787
f42806df
LP		 2788 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2789 f = SERVICE_SUCCESS;
2790 else if (code == CLD_EXITED)
2791 f = SERVICE_FAILURE_EXIT_CODE;
2792 else if (code == CLD_KILLED)
2793 f = SERVICE_FAILURE_SIGNAL;
2794 else if (code == CLD_DUMPED)
2795 f = SERVICE_FAILURE_CORE_DUMP;
d06dacd0 2796 else
cfc4eb4c 2797 assert_not_reached("Unknown code");
034c6ed7
LP		 2798
2799 if (s->main_pid == pid) {
db01f8b3
MS		 2800 /* Forking services may occasionally move to a new PID.
2801 * As long as they update the PID file before exiting the old
2802 * PID, they're fine. */
5375410b 2803 if (service_load_pid_file(s, false) == 0)
db01f8b3 2804 return;
034c6ed7 2805
034c6ed7 2806 s->main_pid = 0;
6ea832a2 2807 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2808
867b3b7d
LP		 2809 /* If this is not a forking service than the main
2810 * process got started and hence we copy the exit
2811 * status so that it is recorded both as main and as
2812 * control process exit status */
2813 if (s->main_command) {
2814 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2815
867b3b7d 2816 if (s->main_command->ignore)
f42806df 2817 f = SERVICE_SUCCESS;
034c6ed7
LP		 2818 }
2819
f42806df 2820 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2821 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2822
2823 if (f != SERVICE_SUCCESS)
2824 s->result = f;
034c6ed7 2825
867b3b7d
LP		 2826 if (s->main_command &&
2827 s->main_command->command_next &&
f42806df 2828 f == SERVICE_SUCCESS) {
034c6ed7 2829
34e9ba66
LP		 2830 /* There is another command to *
2831 * execute, so let's do that. */
034c6ed7 2832
ac155bb8 2833 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
f42806df 2834 service_run_next_main(s);
034c6ed7 2835
34e9ba66
LP		 2836 } else {
2837
2838 /* The service exited, so the service is officially
2839 * gone. */
867b3b7d 2840 s->main_command = NULL;
34e9ba66
LP		 2841
2842 switch (s->state) {
2843
2844 case SERVICE_START_POST:
2845 case SERVICE_RELOAD:
2846 case SERVICE_STOP:
2847 /* Need to wait until the operation is
2848 * done */
c4653a4d 2849 break;
7d55e835 2850
34e9ba66
LP		 2851 case SERVICE_START:
2852 if (s->type == SERVICE_ONESHOT) {
2853 /* This was our main goal, so let's go on */
f42806df 2854 if (f == SERVICE_SUCCESS)
34e9ba66
LP		 2855 service_enter_start_post(s);
2856 else
f42806df 2857 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
34e9ba66
LP		 2858 break;
2859 } else {
2860 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2861
34e9ba66
LP		 2862 /* Fall through */
2863 }
034c6ed7 2864
34e9ba66 2865 case SERVICE_RUNNING:
f42806df 2866 service_enter_running(s, f);
34e9ba66 2867 break;
034c6ed7 2868
34e9ba66
LP		 2869 case SERVICE_STOP_SIGTERM:
2870 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2871
34e9ba66 2872 if (!control_pid_good(s))
f42806df 2873 service_enter_stop_post(s, f);
5cb5a6ff 2874
34e9ba66
LP		 2875 /* If there is still a control process, wait for that first */
2876 break;
2877
2878 default:
2879 assert_not_reached("Uh, main process died at wrong time.");
2880 }
034c6ed7 2881 }
5cb5a6ff 2882
034c6ed7 2883 } else if (s->control_pid == pid) {
034c6ed7 2884
34e9ba66
LP		 2885 s->control_pid = 0;
2886
b708e7ce 2887 if (s->control_command) {
6ea832a2 2888 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2889
b708e7ce 2890 if (s->control_command->ignore)
f42806df 2891 f = SERVICE_SUCCESS;
b708e7ce
LP		 2892 }
2893
f42806df 2894 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2895 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2896
2897 if (f != SERVICE_SUCCESS)
2898 s->result = f;
034c6ed7 2899
34e9ba66
LP		 2900 if (s->control_command &&
2901 s->control_command->command_next &&
f42806df 2902 f == SERVICE_SUCCESS) {
034c6ed7
LP		 2903
2904 /* There is another command to *
2905 * execute, so let's do that. */
2906
ac155bb8 2907 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
f42806df 2908 service_run_next_control(s);
034c6ed7 2909
80876c20 2910 } else {
034c6ed7
LP		 2911 /* No further commands for this step, so let's
2912 * figure out what to do next */
2913
a16e1123
LP		 2914 s->control_command = NULL;
2915 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2916
ac155bb8 2917 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
bd982a8b 2918
034c6ed7
LP		 2919 switch (s->state) {
2920
2921 case SERVICE_START_PRE:
f42806df 2922 if (f == SERVICE_SUCCESS)
034c6ed7
LP		 2923 service_enter_start(s);
2924 else
f42806df 2925 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
034c6ed7
LP		 2926 break;
2927
2928 case SERVICE_START:
2929 assert(s->type == SERVICE_FORKING);
2930
f42806df
LP		 2931 if (f != SERVICE_SUCCESS) {
2932 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3a111838
MS		 2933 break;
2934 }
034c6ed7 2935
3a111838 2936 if (s->pid_file) {
f42806df
LP		 2937 bool has_start_post;
2938 int r;
2939
3a111838
MS		 2940 /* Let's try to load the pid file here if we can.
2941 * The PID file might actually be created by a START_POST
2942 * script. In that case don't worry if the loading fails. */
f42806df
LP		 2943
2944 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
2945 r = service_load_pid_file(s, !has_start_post);
3a111838
MS		 2946 if (!has_start_post && r < 0) {
2947 r = service_demand_pid_file(s);
2948 if (r < 0 || !cgroup_good(s))
f42806df 2949 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 2950 break;
2951 }
034c6ed7 2952 } else
3a111838 2953 service_search_main_pid(s);
034c6ed7 2954
3a111838 2955 service_enter_start_post(s);
034c6ed7
LP		 2956 break;
2957
2958 case SERVICE_START_POST:
f42806df
LP		 2959 if (f != SERVICE_SUCCESS) {
2960 service_enter_stop(s, f);
2096e009 2961 break;
034c6ed7
LP		 2962 }
2963
2096e009 2964 if (s->pid_file) {
f42806df
LP		 2965 int r;
2966
2967 r = service_load_pid_file(s, true);
2096e009
MS		 2968 if (r < 0) {
2969 r = service_demand_pid_file(s);
2970 if (r < 0 || !cgroup_good(s))
f42806df 2971 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2096e009
MS		 2972 break;
2973 }
2974 } else
2975 service_search_main_pid(s);
2976
f42806df 2977 service_enter_running(s, SERVICE_SUCCESS);
3185a36b 2978 break;
034c6ed7
LP		 2979
2980 case SERVICE_RELOAD:
f42806df 2981 if (f == SERVICE_SUCCESS) {
5375410b 2982 service_load_pid_file(s, true);
3185a36b
LP		 2983 service_search_main_pid(s);
2984 }
2985
f42806df
LP		 2986 s->reload_result = f;
2987 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2988 break;
2989
2990 case SERVICE_STOP:
f42806df 2991 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
034c6ed7
LP		 2992 break;
2993
2994 case SERVICE_STOP_SIGTERM:
2995 case SERVICE_STOP_SIGKILL:
2996 if (main_pid_good(s) <= 0)
f42806df 2997 service_enter_stop_post(s, f);
034c6ed7
LP		 2998
2999 /* If there is still a service
3000 * process around, wait until
3001 * that one quit, too */
3002 break;
3003
3004 case SERVICE_STOP_POST:
3005 case SERVICE_FINAL_SIGTERM:
3006 case SERVICE_FINAL_SIGKILL:
f42806df 3007 service_enter_dead(s, f, true);
034c6ed7
LP		 3008 break;
3009
3010 default:
3011 assert_not_reached("Uh, control process died at wrong time.");
3012 }
3013 }
8c47c732 3014 }
c4e2ceae
LP		 3015
3016 /* Notify clients about changed exit status */
3017 unit_add_to_dbus_queue(u);
034c6ed7
LP		 3018}
3019
acbb0225 3020static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 3021 Service *s = SERVICE(u);
034c6ed7
LP		 3022
3023 assert(s);
3024 assert(elapsed == 1);
3025
bb242b7b
MO		 3026 if (w == &s->watchdog_watch) {
3027 service_handle_watchdog(s);
3028 return;
3029 }
3030
acbb0225 3031 assert(w == &s->timer_watch);
034c6ed7
LP		 3032
3033 switch (s->state) {
3034
3035 case SERVICE_START_PRE:
3036 case SERVICE_START:
ac155bb8 3037 log_warning("%s operation timed out. Terminating.", u->id);
f42806df 3038 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
80876c20
LP		 3039 break;
3040
034c6ed7 3041 case SERVICE_START_POST:
ac155bb8 3042 log_warning("%s operation timed out. Stopping.", u->id);
f42806df 3043 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3044 break;
3045
e2f3b44c 3046 case SERVICE_RELOAD:
ac155bb8 3047 log_warning("%s operation timed out. Stopping.", u->id);
f42806df
LP		 3048 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3049 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c
LP		 3050 break;
3051
034c6ed7 3052 case SERVICE_STOP:
ac155bb8 3053 log_warning("%s stopping timed out. Terminating.", u->id);
f42806df 3054 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3055 break;
3056
3057 case SERVICE_STOP_SIGTERM:
ba035df2 3058 if (s->exec_context.send_sigkill) {
ac155bb8 3059 log_warning("%s stopping timed out. Killing.", u->id);
f42806df 3060 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3061 } else {
ac155bb8 3062 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
f42806df 3063 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
ba035df2
LP		 3064 }
3065
034c6ed7
LP		 3066 break;
3067
3068 case SERVICE_STOP_SIGKILL:
35b8ca3a 3069 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 3070 * Must be something we cannot kill, so let's just be
3071 * weirded out and continue */
3072
ac155bb8 3073 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
f42806df 3074 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3075 break;
3076
3077 case SERVICE_STOP_POST:
ac155bb8 3078 log_warning("%s stopping timed out (2). Terminating.", u->id);
f42806df 3079 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3080 break;
3081
3082 case SERVICE_FINAL_SIGTERM:
ba035df2 3083 if (s->exec_context.send_sigkill) {
ac155bb8 3084 log_warning("%s stopping timed out (2). Killing.", u->id);
f42806df 3085 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3086 } else {
ac155bb8 3087 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
f42806df 3088 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
ba035df2
LP		 3089 }
3090
034c6ed7
LP		 3091 break;
3092
3093 case SERVICE_FINAL_SIGKILL:
ac155bb8 3094 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
f42806df 3095 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
034c6ed7
LP		 3096 break;
3097
3098 case SERVICE_AUTO_RESTART:
ac155bb8 3099 log_info("%s holdoff time over, scheduling restart.", u->id);
034c6ed7
LP		 3100 service_enter_restart(s);
3101 break;
3102
3103 default:
3104 assert_not_reached("Timeout at wrong time.");
3105 }
5cb5a6ff
LP		 3106}
3107
8e274523
LP		 3108static void service_cgroup_notify_event(Unit *u) {
3109 Service *s = SERVICE(u);
3110
3111 assert(u);
3112
ac155bb8 3113 log_debug("%s: cgroup is empty", u->id);
8e274523
LP		 3114
3115 switch (s->state) {
3116
3117 /* Waiting for SIGCHLD is usually more interesting,
3118 * because it includes return codes/signals. Which is
3119 * why we ignore the cgroup events for most cases,
3120 * except when we don't know pid which to expect the
3121 * SIGCHLD for. */
3122
3a111838
MS		 3123 case SERVICE_START:
3124 case SERVICE_START_POST:
3125 /* If we were hoping for the daemon to write its PID file,
3126 * we can give up now. */
3127 if (s->pid_file_pathspec) {
1124fe6f 3128 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3a111838
MS		 3129 service_unwatch_pid_file(s);
3130 if (s->state == SERVICE_START)
f42806df 3131 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838 3132 else
f42806df 3133 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3134 }
3135 break;
3136
8e274523 3137 case SERVICE_RUNNING:
f42806df
LP		 3138 /* service_enter_running() will figure out what to do */
3139 service_enter_running(s, SERVICE_SUCCESS);
8e274523
LP		 3140 break;
3141
28708d8a
LP		 3142 case SERVICE_STOP_SIGTERM:
3143 case SERVICE_STOP_SIGKILL:
6dfa5494 3144
28708d8a 3145 if (main_pid_good(s) <= 0 && !control_pid_good(s))
f42806df 3146 service_enter_stop_post(s, SERVICE_SUCCESS);
28708d8a
LP		 3147
3148 break;
3149
7f97f0fe
LP		 3150 case SERVICE_FINAL_SIGTERM:
3151 case SERVICE_FINAL_SIGKILL:
3152 if (main_pid_good(s) <= 0 && !control_pid_good(s))
f42806df 3153 service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
7f97f0fe
LP		 3154
3155 break;
3156
8e274523
LP		 3157 default:
3158 ;
3159 }
3160}
3161
c952c6ec 3162static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 3163 Service *s = SERVICE(u);
3164 const char *e;
3165
3166 assert(u);
3167
c952c6ec
LP		 3168 if (s->notify_access == NOTIFY_NONE) {
3169 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
ac155bb8 3170 u->id, (unsigned long) pid);
c952c6ec
LP		 3171 return;
3172 }
3173
3174 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3175 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
ac155bb8 3176 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
c952c6ec
LP		 3177 return;
3178 }
3179
ac155bb8 3180 log_debug("%s: Got message", u->id);
8c47c732
LP		 3181
3182 /* Interpret MAINPID= */
3183 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3184 (s->state == SERVICE_START ||
3185 s->state == SERVICE_START_POST ||
3186 s->state == SERVICE_RUNNING ||
3187 s->state == SERVICE_RELOAD)) {
8c47c732 3188
5925dd3c 3189 if (parse_pid(e + 8, &pid) < 0)
92abbefb 3190 log_warning("Failed to parse notification message %s", e);
8c47c732 3191 else {
ac155bb8 3192 log_debug("%s: got %s", u->id, e);
5925dd3c 3193 service_set_main_pid(s, pid);
8c47c732
LP		 3194 }
3195 }
3196
3197 /* Interpret READY= */
3198 if (s->type == SERVICE_NOTIFY &&
3199 s->state == SERVICE_START &&
3200 strv_find(tags, "READY=1")) {
ac155bb8 3201 log_debug("%s: got READY=1", u->id);
8c47c732
LP		 3202
3203 service_enter_start_post(s);
3204 }
3205
3206 /* Interpret STATUS= */
7f110ff9
LP		 3207 e = strv_find_prefix(tags, "STATUS=");
3208 if (e) {
8c47c732
LP		 3209 char *t;
3210
3a2776bc 3211 if (e[7]) {
7f110ff9
LP		 3212
3213 if (!utf8_is_valid(e+7)) {
3214 log_warning("Status message in notification is not UTF-8 clean.");
3215 return;
3216 }
3217
3218 t = strdup(e+7);
3219 if (!t) {
3a2776bc
LP		 3220 log_error("Failed to allocate string.");
3221 return;
3222 }
3223
ac155bb8 3224 log_debug("%s: got %s", u->id, e);
8c47c732 3225
3a2776bc
LP		 3226 free(s->status_text);
3227 s->status_text = t;
3228 } else {
3229 free(s->status_text);
3230 s->status_text = NULL;
3231 }
8c47c732 3232
8c47c732 3233 }
a6927d7f
MO		 3234 if (strv_find(tags, "WATCHDOG=1")) {
3235 log_debug("%s: got WATCHDOG=1", u->id);
3236 service_reset_watchdog(s);
3237 }
c4e2ceae
LP		 3238
3239 /* Notify clients about changed status or main pid */
3240 unit_add_to_dbus_queue(u);
8c47c732
LP		 3241}
3242
07459bb6 3243#ifdef HAVE_SYSV_COMPAT
de3910a3
FC		 3244
3245#ifdef TARGET_SUSE
3246static void sysv_facility_in_insserv_conf(Manager *mgr) {
3247 FILE *f=NULL;
3248 int r;
3249
3250 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3251 r = errno == ENOENT ? 0 : -errno;
3252 goto finish;
3253 }
3254
3255 while (!feof(f)) {
3256 char l[LINE_MAX], *t;
3257 char **parsed = NULL;
3258
3259 if (!fgets(l, sizeof(l), f)) {
3260 if (feof(f))
3261 break;
3262
3263 r = -errno;
3264 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3265 goto finish;
3266 }
3267
3268 t = strstrip(l);
3269 if (*t != '$' && *t != '<')
3270 continue;
3271
3272 parsed = strv_split(t,WHITESPACE);
3273 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3274 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3275 char *facility;
3276 Unit *u;
3277 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3278 continue;
ac155bb8 3279 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
de3910a3
FC		 3280 UnitDependency e;
3281 char *dep = NULL, *name, **j;
3282
3283 STRV_FOREACH (j, parsed+1) {
3284 if (*j[0]=='+') {
3285 e = UNIT_WANTS;
3286 name = *j+1;
3287 }
3288 else {
3289 e = UNIT_REQUIRES;
3290 name = *j;
3291 }
3292 if (sysv_translate_facility(name, NULL, &dep) < 0)
3293 continue;
3294
3295 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3296 free(dep);
3297 }
3298 }
3299 free(facility);
3300 }
3301 strv_free(parsed);
3302 }
3303finish:
3304 if (f)
3305 fclose(f);
3306
3307}
3308#endif
3309
2c4104f0 3310static int service_enumerate(Manager *m) {
2c4104f0
LP		 3311 char **p;
3312 unsigned i;
3313 DIR *d = NULL;
3314 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 3315 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3316 Unit *service;
3317 Iterator j;
2c4104f0
LP		 3318 int r;
3319
3320 assert(m);
3321
b1bc08e5
LP		 3322 if (m->running_as != MANAGER_SYSTEM)
3323 return 0;
3324
c68364b7
LP		 3325 zero(runlevel_services);
3326
84e3543e 3327 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 3328 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 3329 struct dirent *de;
3330
3331 free(path);
70132bd0
LP		 3332 path = join(*p, "/", rcnd_table[i].path, NULL);
3333 if (!path) {
2c4104f0
LP		 3334 r = -ENOMEM;
3335 goto finish;
3336 }
3337
3338 if (d)
3339 closedir(d);
3340
3341 if (!(d = opendir(path))) {
3342 if (errno != ENOENT)
3343 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3344
3345 continue;
3346 }
3347
3348 while ((de = readdir(d))) {
db06e3b6 3349 int a, b;
2c4104f0
LP		 3350
3351 if (ignore_file(de->d_name))
3352 continue;
3353
3354 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3355 continue;
3356
3357 if (strlen(de->d_name) < 4)
3358 continue;
3359
db06e3b6
LP		 3360 a = undecchar(de->d_name[1]);
3361 b = undecchar(de->d_name[2]);
3362
3363 if (a < 0 || b < 0)
3364 continue;
3365
2c4104f0 3366 free(fpath);
44d91056 3367 fpath = join(path, "/", de->d_name, NULL);
8ea913b2 3368 if (!fpath) {
2c4104f0
LP		 3369 r = -ENOMEM;
3370 goto finish;
3371 }
3372
3373 if (access(fpath, X_OK) < 0) {
3374
3375 if (errno != ENOENT)
3376 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3377
3378 continue;
3379 }
3380
3381 free(name);
b7ccee3c 3382 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3383 r = -ENOMEM;
3384 goto finish;
3385 }
3386
398ef8ba 3387 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3388 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3389 continue;
3390 }
2c4104f0 3391
c68364b7
LP		 3392 if (de->d_name[0] == 'S') {
3393
f73d93a4 3394 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3395 SERVICE(service)->sysv_start_priority_from_rcnd =
3396 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3397
c68364b7 3398 SERVICE(service)->sysv_enabled = true;
f73d93a4 3399 }
db06e3b6 3400
c68364b7
LP		 3401 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3402 goto finish;
2c4104f0 3403
c68364b7 3404 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3405 goto finish;
23a177ef 3406
fc5df99e
LP		 3407 } else if (de->d_name[0] == 'K' &&
3408 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3409 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3410
c68364b7
LP		 3411 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3412 goto finish;
3413
3414 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3415 goto finish;
3416 }
3417 }
3418 }
3419
c68364b7
LP		 3420 /* Now we loaded all stubs and are aware of the lowest
3421 start-up priority for all services, not let's actually load
3422 the services, this will also tell us which services are
3423 actually native now */
3424 manager_dispatch_load_queue(m);
3425
3426 /* If this is a native service, rely on native ways to pull in
3427 * a service, don't pull it in via sysv rcN.d links. */
3428 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3429 SET_FOREACH(service, runlevel_services[i], j) {
3430 service = unit_follow_merge(service);
3431
ac155bb8 3432 if (service->fragment_path)
c68364b7
LP		 3433 continue;
3434
3435 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3436 goto finish;
3437 }
3438
3439 /* We honour K links only for halt/reboot. For the normal
3440 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3441 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3442 * between the runlevels 0 and 6 and just add them to the
3443 * special shutdown target. On SUSE the boot.d/ runlevel is
3444 * also used for shutdown, so we add links for that too to the
3445 * shutdown target.*/
3446 SET_FOREACH(service, shutdown_services, j) {
3447 service = unit_follow_merge(service);
3448
ac155bb8 3449 if (service->fragment_path)
c68364b7
LP		 3450 continue;
3451
ead8e478 3452 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3453 goto finish;
3454 }
3455
2c4104f0
LP		 3456 r = 0;
3457
de3910a3 3458#ifdef TARGET_SUSE
3a111838 3459 sysv_facility_in_insserv_conf (m);
de3910a3
FC		 3460#endif
3461
2c4104f0
LP		 3462finish:
3463 free(path);
3464 free(fpath);
3465 free(name);
fbe9f3a9 3466
c68364b7
LP		 3467 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3468 set_free(runlevel_services[i]);
3469 set_free(shutdown_services);
3470
fbe9f3a9
LP		 3471 if (d)
3472 closedir(d);
2c4104f0
LP		 3473
3474 return r;
3475}
07459bb6 3476#endif
2c4104f0 3477
05e343b7
LP		 3478static void service_bus_name_owner_change(
3479 Unit *u,
3480 const char *name,
3481 const char *old_owner,
3482 const char *new_owner) {
3483
3484 Service *s = SERVICE(u);
3485
3486 assert(s);
3487 assert(name);
3488
3489 assert(streq(s->bus_name, name));
3490 assert(old_owner || new_owner);
3491
3492 if (old_owner && new_owner)
ac155bb8 3493 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
05e343b7 3494 else if (old_owner)
ac155bb8 3495 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
05e343b7 3496 else
ac155bb8 3497 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
05e343b7
LP		 3498
3499 s->bus_name_good = !!new_owner;
3500
3501 if (s->type == SERVICE_DBUS) {
3502
3503 /* service_enter_running() will figure out what to
3504 * do */
3505 if (s->state == SERVICE_RUNNING)
f42806df 3506 service_enter_running(s, SERVICE_SUCCESS);
05e343b7
LP		 3507 else if (s->state == SERVICE_START && new_owner)
3508 service_enter_start_post(s);
3509
3510 } else if (new_owner &&
3511 s->main_pid <= 0 &&
3512 (s->state == SERVICE_START ||
3513 s->state == SERVICE_START_POST ||
3514 s->state == SERVICE_RUNNING ||
3515 s->state == SERVICE_RELOAD)) {
3516
3517 /* Try to acquire PID from bus service */
3518 log_debug("Trying to acquire PID from D-Bus name...");
3519
ac155bb8 3520 bus_query_pid(u->manager, name);
05e343b7
LP		 3521 }
3522}
3523
3524static void service_bus_query_pid_done(
3525 Unit *u,
3526 const char *name,
3527 pid_t pid) {
3528
3529 Service *s = SERVICE(u);
3530
3531 assert(s);
3532 assert(name);
3533
ac155bb8 3534 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
05e343b7
LP		 3535
3536 if (s->main_pid <= 0 &&
3537 (s->state == SERVICE_START ||
3538 s->state == SERVICE_START_POST ||
3539 s->state == SERVICE_RUNNING ||
3540 s->state == SERVICE_RELOAD))
5925dd3c 3541 service_set_main_pid(s, pid);
05e343b7
LP		 3542}
3543
6cf6bbc2 3544int service_set_socket_fd(Service *s, int fd, Socket *sock) {
57020a3a 3545
4f2d528d
LP		 3546 assert(s);
3547 assert(fd >= 0);
3548
3549 /* This is called by the socket code when instantiating a new
3550 * service for a stream socket and the socket needs to be
3551 * configured. */
3552
1124fe6f 3553 if (UNIT(s)->load_state != UNIT_LOADED)
4f2d528d
LP		 3554 return -EINVAL;
3555
3556 if (s->socket_fd >= 0)
3557 return -EBUSY;
3558
3559 if (s->state != SERVICE_DEAD)
3560 return -EAGAIN;
3561
3562 s->socket_fd = fd;
701cc384 3563 s->got_socket_fd = true;
6cf6bbc2 3564
57020a3a
LP		 3565 unit_ref_set(&s->accept_socket, UNIT(sock));
3566
3567 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
4f2d528d
LP		 3568}
3569
fdf20a31 3570static void service_reset_failed(Unit *u) {
5632e374
LP		 3571 Service *s = SERVICE(u);
3572
3573 assert(s);
3574
fdf20a31 3575 if (s->state == SERVICE_FAILED)
5632e374
LP		 3576 service_set_state(s, SERVICE_DEAD);
3577
f42806df
LP		 3578 s->result = SERVICE_SUCCESS;
3579 s->reload_result = SERVICE_SUCCESS;
5632e374
LP		 3580}
3581
5f4b19f4
LP		 3582static bool service_need_daemon_reload(Unit *u) {
3583 Service *s = SERVICE(u);
3584
3585 assert(s);
3586
3587#ifdef HAVE_SYSV_COMPAT
3588 if (s->sysv_path) {
3589 struct stat st;
3590
3591 zero(st);
3592 if (stat(s->sysv_path, &st) < 0)
3593 /* What, cannot access this anymore? */
3594 return true;
3595
3596 if (s->sysv_mtime > 0 &&
3597 timespec_load(&st.st_mtim) != s->sysv_mtime)
3598 return true;
3599 }
3600#endif
3601
3602 return false;
3603}
3604
8a0867d6
LP		 3605static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3606 Service *s = SERVICE(u);
3607 int r = 0;
3608 Set *pid_set = NULL;
3609
3610 assert(s);
3611
3612 if (s->main_pid <= 0 && who == KILL_MAIN) {
3613 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3614 return -ESRCH;
8a0867d6
LP		 3615 }
3616
3617 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3618 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3619 return -ESRCH;
8a0867d6
LP		 3620 }
3621
3611581e
LP		 3622 if (who == KILL_CONTROL || who == KILL_ALL)
3623 if (s->control_pid > 0)
3624 if (kill(s->control_pid, signo) < 0)
3625 r = -errno;
8a0867d6 3626
3611581e
LP		 3627 if (who == KILL_MAIN || who == KILL_ALL)
3628 if (s->main_pid > 0)
3629 if (kill(s->main_pid, signo) < 0)
3630 r = -errno;
8a0867d6 3631
3611581e 3632 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
8a0867d6
LP		 3633 int q;
3634
3635 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3636 return -ENOMEM;
3637
3638 /* Exclude the control/main pid from being killed via the cgroup */
3639 if (s->control_pid > 0)
3640 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3641 r = q;
3642 goto finish;
3643 }
3644
3645 if (s->main_pid > 0)
3646 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3647 r = q;
3648 goto finish;
3649 }
3650
1124fe6f 3651 if ((q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
3611581e 3652 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
8a0867d6
LP		 3653 r = q;
3654 }
3655
3656finish:
3657 if (pid_set)
3658 set_free(pid_set);
3659
3660 return r;
3661}
3662
94f04347
LP		 3663static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3664 [SERVICE_DEAD] = "dead",
3665 [SERVICE_START_PRE] = "start-pre",
3666 [SERVICE_START] = "start",
3667 [SERVICE_START_POST] = "start-post",
3668 [SERVICE_RUNNING] = "running",
80876c20 3669 [SERVICE_EXITED] = "exited",
94f04347
LP		 3670 [SERVICE_RELOAD] = "reload",
3671 [SERVICE_STOP] = "stop",
3672 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3673 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3674 [SERVICE_STOP_POST] = "stop-post",
3675 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3676 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3677 [SERVICE_FAILED] = "failed",
94f04347
LP		 3678 [SERVICE_AUTO_RESTART] = "auto-restart",
3679};
3680
3681DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3682
3683static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3684 [SERVICE_RESTART_NO] = "no",
3685 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3686 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3687 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3688 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3689};
3690
3691DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3692
3693static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3694 [SERVICE_SIMPLE] = "simple",
0d624a78 3695 [SERVICE_FORKING] = "forking",
34e9ba66 3696 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3697 [SERVICE_DBUS] = "dbus",
3698 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3699};
3700
3701DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3702
e537352b 3703static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3704 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3705 [SERVICE_EXEC_START] = "ExecStart",
3706 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3707 [SERVICE_EXEC_RELOAD] = "ExecReload",
3708 [SERVICE_EXEC_STOP] = "ExecStop",
3709 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3710};
3711
3712DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3713
c952c6ec
LP		 3714static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3715 [NOTIFY_NONE] = "none",
3716 [NOTIFY_MAIN] = "main",
3717 [NOTIFY_ALL] = "all"
3718};
3719
3720DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3721
f42806df
LP		 3722static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3723 [SERVICE_SUCCESS] = "success",
3724 [SERVICE_FAILURE_RESOURCES] = "resources",
3725 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3726 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3727 [SERVICE_FAILURE_SIGNAL] = "signal",
bb242b7b
MO		 3728 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3729 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
f42806df
LP		 3730};
3731
3732DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3733
4b939747
MO		 3734static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3735 [SERVICE_START_LIMIT_NONE] = "none",
3736 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3737 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3738 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3739};
3740DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3741
87f0e418 3742const UnitVTable service_vtable = {
5cb5a6ff 3743 .suffix = ".service",
7d17cfbc 3744 .object_size = sizeof(Service),
f975e971
LP		 3745 .sections =
3746 "Unit\0"
3747 "Service\0"
3748 "Install\0",
9e58ff9c 3749 .show_status = true,
5cb5a6ff 3750
034c6ed7
LP		 3751 .init = service_init,
3752 .done = service_done,
a16e1123
LP		 3753 .load = service_load,
3754
3755 .coldplug = service_coldplug,
034c6ed7 3756
5cb5a6ff
LP		 3757 .dump = service_dump,
3758
3759 .start = service_start,
3760 .stop = service_stop,
3761 .reload = service_reload,
3762
034c6ed7
LP		 3763 .can_reload = service_can_reload,
3764
8a0867d6
LP		 3765 .kill = service_kill,
3766
a16e1123
LP		 3767 .serialize = service_serialize,
3768 .deserialize_item = service_deserialize_item,
3769
5cb5a6ff 3770 .active_state = service_active_state,
10a94420 3771 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3772
701cc384
LP		 3773 .check_gc = service_check_gc,
3774 .check_snapshot = service_check_snapshot,
3775
034c6ed7
LP		 3776 .sigchld_event = service_sigchld_event,
3777 .timer_event = service_timer_event,
3a111838 3778 .fd_event = service_fd_event,
2c4104f0 3779
fdf20a31 3780 .reset_failed = service_reset_failed,
5632e374 3781
5f4b19f4
LP		 3782 .need_daemon_reload = service_need_daemon_reload,
3783
8e274523 3784 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3785 .notify_message = service_notify_message,
8e274523 3786
05e343b7
LP		 3787 .bus_name_owner_change = service_bus_name_owner_change,
3788 .bus_query_pid_done = service_bus_query_pid_done,
3789
c4e2ceae 3790 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3791 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3792 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3793
07459bb6 3794#ifdef HAVE_SYSV_COMPAT
2c4104f0 3795 .enumerate = service_enumerate
07459bb6 3796#endif
5cb5a6ff 3797};
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