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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"
41f9172f 36#include "unit-printf.h"
4139c1b2 37#include "dbus-service.h"
514f4ef5 38#include "special.h"
398ef8ba 39#include "bus-errors.h"
9a57c629 40#include "exit-status.h"
f6a6225e 41#include "def.h"
9eb977db 42#include "path-util.h"
f6a6225e 43#include "util.h"
7f110ff9 44#include "utf8.h"
034c6ed7 45
07459bb6 46#ifdef HAVE_SYSV_COMPAT
f34277d9 47
f6a6225e 48#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
f34277d9 49
09cd1ab1
LP		 50typedef enum RunlevelType {
51 RUNLEVEL_UP,
3cdebc21 52 RUNLEVEL_DOWN
09cd1ab1
LP		 53} RunlevelType;
54
55static const struct {
56 const char *path;
57 const char *target;
58 const RunlevelType type;
59} rcnd_table[] = {
9d25f5ed 60 /* Standard SysV runlevels for start-up */
514f4ef5 61 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 62 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
63 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
64 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
65 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 66
9d25f5ed
LP		 67 /* Standard SysV runlevels for shutdown */
68 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
69 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
70
71 /* Note that the order here matters, as we read the
72 directories in this order, and we want to make sure that
73 sysv_start_priority is known when we first load the
74 unit. And that value we only know from S links. Hence
3cdebc21 75 UP must be read before DOWN */
23a177ef
LP		 76};
77
09cd1ab1 78#define RUNLEVELS_UP "12345"
07459bb6 79#endif
09cd1ab1 80
acbb0225 81static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 82 [SERVICE_DEAD] = UNIT_INACTIVE,
83 [SERVICE_START_PRE] = UNIT_ACTIVATING,
84 [SERVICE_START] = UNIT_ACTIVATING,
85 [SERVICE_START_POST] = UNIT_ACTIVATING,
86 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 87 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 88 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 89 [SERVICE_STOP] = UNIT_DEACTIVATING,
90 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
91 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
92 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
93 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
94 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 95 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 96 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 97};
5cb5a6ff 98
e056b01d
LP		 99/* For Type=idle we never want to delay any other jobs, hence we
100 * consider idle jobs active as soon as we start working on them */
101static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
102 [SERVICE_DEAD] = UNIT_INACTIVE,
103 [SERVICE_START_PRE] = UNIT_ACTIVE,
104 [SERVICE_START] = UNIT_ACTIVE,
105 [SERVICE_START_POST] = UNIT_ACTIVE,
106 [SERVICE_RUNNING] = UNIT_ACTIVE,
107 [SERVICE_EXITED] = UNIT_ACTIVE,
108 [SERVICE_RELOAD] = UNIT_RELOADING,
109 [SERVICE_STOP] = UNIT_DEACTIVATING,
110 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
111 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
112 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
113 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
114 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
115 [SERVICE_FAILED] = UNIT_FAILED,
116 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
117};
118
a16e1123
LP		 119static void service_init(Unit *u) {
120 Service *s = SERVICE(u);
121
122 assert(u);
ac155bb8 123 assert(u->load_state == UNIT_STUB);
a16e1123 124
d568a335
MS		 125 s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
126 s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
a16e1123 127 s->restart_usec = DEFAULT_RESTART_USEC;
0b86feac 128 s->type = _SERVICE_TYPE_INVALID;
bb242b7b
MO		 129
130 s->watchdog_watch.type = WATCH_INVALID;
131
a16e1123 132 s->timer_watch.type = WATCH_INVALID;
07459bb6 133#ifdef HAVE_SYSV_COMPAT
a16e1123 134 s->sysv_start_priority = -1;
ea87ca5a 135 s->sysv_start_priority_from_rcnd = -1;
07459bb6 136#endif
a16e1123 137 s->socket_fd = -1;
3185a36b 138 s->guess_main_pid = true;
a16e1123
LP		 139
140 exec_context_init(&s->exec_context);
4819ff03 141 kill_context_init(&s->kill_context);
a16e1123 142
4b939747 143 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
a16e1123
LP		 144
145 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
146}
147
5e94833f
LP		 148static void service_unwatch_control_pid(Service *s) {
149 assert(s);
150
151 if (s->control_pid <= 0)
152 return;
153
154 unit_unwatch_pid(UNIT(s), s->control_pid);
155 s->control_pid = 0;
156}
157
158static void service_unwatch_main_pid(Service *s) {
159 assert(s);
160
161 if (s->main_pid <= 0)
162 return;
163
164 unit_unwatch_pid(UNIT(s), s->main_pid);
165 s->main_pid = 0;
166}
167
3e52541e
MS		 168static void service_unwatch_pid_file(Service *s) {
169 if (!s->pid_file_pathspec)
170 return;
171
172 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
173 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
174 path_spec_done(s->pid_file_pathspec);
175 free(s->pid_file_pathspec);
176 s->pid_file_pathspec = NULL;
177}
178
5925dd3c 179static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 180 pid_t ppid;
181
5925dd3c
LP		 182 assert(s);
183
184 if (pid <= 1)
185 return -EINVAL;
186
187 if (pid == getpid())
188 return -EINVAL;
189
6dfa5494
LP		 190 s->main_pid = pid;
191 s->main_pid_known = true;
192
193 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
e55224ca 194 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
1124fe6f 195 UNIT(s)->id, (unsigned long) pid);
e55224ca 196
6dfa5494
LP		 197 s->main_pid_alien = true;
198 } else
199 s->main_pid_alien = false;
5925dd3c 200
b58b4116
LP		 201 exec_status_start(&s->main_exec_status, pid);
202
5925dd3c
LP		 203 return 0;
204}
205
4f2d528d
LP		 206static void service_close_socket_fd(Service *s) {
207 assert(s);
208
209 if (s->socket_fd < 0)
210 return;
211
212 close_nointr_nofail(s->socket_fd);
213 s->socket_fd = -1;
214}
215
6cf6bbc2
LP		 216static void service_connection_unref(Service *s) {
217 assert(s);
218
57020a3a 219 if (!UNIT_DEREF(s->accept_socket))
6cf6bbc2
LP		 220 return;
221
57020a3a
LP		 222 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
223 unit_ref_unset(&s->accept_socket);
6cf6bbc2
LP		 224}
225
a6927d7f
MO		 226static void service_stop_watchdog(Service *s) {
227 assert(s);
228
bb242b7b 229 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
a6927d7f
MO		 230 s->watchdog_timestamp.realtime = 0;
231 s->watchdog_timestamp.monotonic = 0;
232}
233
bb242b7b
MO		 234static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
235
236static void service_handle_watchdog(Service *s) {
237 usec_t offset;
238 int r;
239
240 assert(s);
241
242 if (s->watchdog_usec == 0)
243 return;
244
245 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
246 if (offset >= s->watchdog_usec) {
247 log_error("%s watchdog timeout!", UNIT(s)->id);
248 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
249 return;
250 }
251
252 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
253 if (r < 0)
254 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
255}
256
a6927d7f
MO		 257static void service_reset_watchdog(Service *s) {
258 assert(s);
259
260 dual_timestamp_get(&s->watchdog_timestamp);
bb242b7b 261 service_handle_watchdog(s);
a6927d7f
MO		 262}
263
87f0e418
LP		 264static void service_done(Unit *u) {
265 Service *s = SERVICE(u);
44d8db9e
LP		 266
267 assert(s);
268
269 free(s->pid_file);
270 s->pid_file = NULL;
271
07459bb6 272#ifdef HAVE_SYSV_COMPAT
8309400a
LP		 273 free(s->sysv_runlevels);
274 s->sysv_runlevels = NULL;
07459bb6 275#endif
8309400a 276
8c47c732
LP		 277 free(s->status_text);
278 s->status_text = NULL;
279
44d8db9e 280 exec_context_done(&s->exec_context);
e537352b 281 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 282 s->control_command = NULL;
867b3b7d 283 s->main_command = NULL;
44d8db9e 284
96342de6
LN		 285 set_free(s->restart_ignore_status.code);
286 s->restart_ignore_status.code = NULL;
287 set_free(s->restart_ignore_status.signal);
288 s->restart_ignore_status.signal = NULL;
289
290 set_free(s->success_status.code);
291 s->success_status.code = NULL;
292 set_free(s->success_status.signal);
293 s->success_status.signal = NULL;
294
44d8db9e
LP		 295 /* This will leak a process, but at least no memory or any of
296 * our resources */
5e94833f
LP		 297 service_unwatch_main_pid(s);
298 service_unwatch_control_pid(s);
3e52541e 299 service_unwatch_pid_file(s);
44d8db9e 300
05e343b7 301 if (s->bus_name) {
ac155bb8 302 unit_unwatch_bus_name(u, s->bus_name);
05e343b7
LP		 303 free(s->bus_name);
304 s->bus_name = NULL;
305 }
306
4f2d528d 307 service_close_socket_fd(s);
6cf6bbc2 308 service_connection_unref(s);
4f2d528d 309
57020a3a 310 unit_ref_unset(&s->accept_socket);
f976f3f6 311
bb242b7b
MO		 312 service_stop_watchdog(s);
313
acbb0225 314 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 315}
316
07459bb6 317#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 318static char *sysv_translate_name(const char *name) {
319 char *r;
320
321 if (!(r = new(char, strlen(name) + sizeof(".service"))))
322 return NULL;
323
1bd8b818 324#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198
MB		 325 if (endswith(name, ".sh"))
326 /* Drop Debian-style .sh suffix */
327 strcpy(stpcpy(r, name) - 3, ".service");
328#endif
65530632 329#ifdef TARGET_FRUGALWARE
5b819198 330 if (startswith(name, "rc."))
65530632
MV		 331 /* Drop Frugalware-style rc. prefix */
332 strcpy(stpcpy(r, name + 3), ".service");
980900c1 333#endif
b7ccee3c
LP		 334 else
335 /* Normal init scripts */
336 strcpy(stpcpy(r, name), ".service");
337
338 return r;
339}
340
ee95669f 341static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 342
a7d3cc26
LP		 343 /* We silently ignore the $ prefix here. According to the LSB
344 * spec it simply indicates whether something is a
345 * standardized name or a distribution-specific one. Since we
346 * just follow what already exists and do not introduce new
347 * uses or names we don't care who introduced a new name. */
348
2c4104f0 349 static const char * const table[] = {
6464aa08 350 /* LSB defined facilities */
a7d3cc26 351 "local_fs", SPECIAL_LOCAL_FS_TARGET,
6fdae8a6
DM		 352#if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
353#else
8d0e38a2
LP		 354 /* Due to unfortunate name selection in Mandriva,
355 * $network is provided by network-up which is ordered
356 * after network which actually starts interfaces.
357 * To break the loop, just ignore it */
a7d3cc26 358 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 359#endif
a7d3cc26
LP		 360 "named", SPECIAL_NSS_LOOKUP_TARGET,
361 "portmap", SPECIAL_RPCBIND_TARGET,
362 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
363 "syslog", SPECIAL_SYSLOG_TARGET,
4466194c 364 "time", SPECIAL_TIME_SYNC_TARGET,
6464aa08 365
0b603b4e
KS		 366 /* common extensions */
367 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
368 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
369 "null", NULL,
370
1bd8b818 371#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
a7d3cc26 372 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 373#endif
3177a49c 374
0b603b4e
KS		 375#ifdef TARGET_SUSE
376 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
377#endif
2c4104f0
LP		 378 };
379
380 unsigned i;
381 char *r;
ee95669f 382 const char *n;
2c4104f0 383
ee95669f
LP		 384 assert(name);
385 assert(_r);
a7d3cc26 386
ee95669f 387 n = *name == '$' ? name + 1 : name;
a7d3cc26 388
ee95669f 389 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 390
ee95669f
LP		 391 if (!streq(table[i], n))
392 continue;
2c4104f0 393
ee95669f
LP		 394 if (!table[i+1])
395 return 0;
396
397 if (!(r = strdup(table[i+1])))
398 return -ENOMEM;
399
400 goto finish;
401 }
2c4104f0 402
a7d3cc26 403 /* If we don't know this name, fallback heuristics to figure
0003d1ab 404 * out whether something is a target or a service alias. */
a7d3cc26 405
e83c7c0b
LP		 406 if (*name == '$') {
407 if (!unit_prefix_is_valid(n))
408 return -EINVAL;
409
ee95669f
LP		 410 /* Facilities starting with $ are most likely targets */
411 r = unit_name_build(n, NULL, ".target");
e83c7c0b 412 } else if (filename && streq(name, filename))
35b8ca3a 413 /* Names equaling the file name of the services are redundant */
ee95669f 414 return 0;
32159d3a 415 else
ee95669f
LP		 416 /* Everything else we assume to be normal service names */
417 r = sysv_translate_name(n);
2c4104f0 418
32159d3a 419 if (!r)
2c4104f0
LP		 420 return -ENOMEM;
421
422finish:
b4353094 423 *_r = r;
2c4104f0
LP		 424
425 return 1;
426}
427
56d748b4 428static int sysv_fix_order(Service *s) {
ac155bb8 429 Unit *other;
2c4104f0
LP		 430 int r;
431
432 assert(s);
433
434 if (s->sysv_start_priority < 0)
435 return 0;
436
23a177ef
LP		 437 /* For each pair of services where at least one lacks a LSB
438 * header, we use the start priority value to order things. */
2c4104f0 439
1124fe6f 440 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
2c4104f0
LP		 441 Service *t;
442 UnitDependency d;
eeaafddc 443 bool special_s, special_t;
2c4104f0 444
595ed347 445 t = SERVICE(other);
2c4104f0
LP		 446
447 if (s == t)
448 continue;
9f151f29 449
1124fe6f 450 if (UNIT(t)->load_state != UNIT_LOADED)
9f151f29 451 continue;
2c4104f0
LP		 452
453 if (t->sysv_start_priority < 0)
454 continue;
455
51a1a79d
LP		 456 /* If both units have modern headers we don't care
457 * about the priorities */
1124fe6f
MS		 458 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
459 (UNIT(t)->fragment_path || t->sysv_has_lsb))
23a177ef
LP		 460 continue;
461
eeaafddc
LP		 462 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
463 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
464
465 if (special_t && !special_s)
466 d = UNIT_AFTER;
467 else if (special_s && !special_t)
468 d = UNIT_BEFORE;
469 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 470 d = UNIT_AFTER;
471 else if (t->sysv_start_priority > s->sysv_start_priority)
472 d = UNIT_BEFORE;
473 else
474 continue;
475
476 /* FIXME: Maybe we should compare the name here lexicographically? */
477
da19d5c1 478 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 479 return r;
480 }
481
482 return 0;
483}
484
485static ExecCommand *exec_command_new(const char *path, const char *arg1) {
486 ExecCommand *c;
487
488 if (!(c = new0(ExecCommand, 1)))
489 return NULL;
490
491 if (!(c->path = strdup(path))) {
492 free(c);
493 return NULL;
494 }
495
496 if (!(c->argv = strv_new(path, arg1, NULL))) {
497 free(c->path);
498 free(c);
499 return NULL;
500 }
501
502 return c;
503}
504
37e2941d 505static int sysv_exec_commands(Service *s, const bool supports_reload) {
2c4104f0
LP		 506 ExecCommand *c;
507
508 assert(s);
1b64d026
LP		 509 assert(s->is_sysv);
510 assert(UNIT(s)->source_path);
2c4104f0 511
1b64d026
LP		 512 c = exec_command_new(UNIT(s)->source_path, "start");
513 if (!c)
2c4104f0
LP		 514 return -ENOMEM;
515 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
516
1b64d026
LP		 517 c = exec_command_new(UNIT(s)->source_path, "stop");
518 if (!c)
2c4104f0
LP		 519 return -ENOMEM;
520 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
521
37e2941d
MS		 522 if (supports_reload) {
523 c = exec_command_new(UNIT(s)->source_path, "reload");
524 if (!c)
525 return -ENOMEM;
526 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
527 }
2c4104f0
LP		 528
529 return 0;
530}
531
37e2941d
MS		 532static bool usage_contains_reload(const char *line) {
533 return (strcasestr(line, "{reload|") ||
534 strcasestr(line, "{reload}") ||
535 strcasestr(line, "{reload\"") ||
536 strcasestr(line, "|reload|") ||
537 strcasestr(line, "|reload}") ||
538 strcasestr(line, "|reload\""));
539}
540
e537352b 541static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 542 FILE *f;
543 Unit *u;
544 unsigned line = 0;
545 int r;
546 enum {
547 NORMAL,
548 DESCRIPTION,
549 LSB,
37e2941d
MS		 550 LSB_DESCRIPTION,
551 USAGE_CONTINUATION
2c4104f0 552 } state = NORMAL;
0b5d26f9 553 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
5f4b19f4 554 struct stat st;
37e2941d 555 bool supports_reload = false;
23a177ef
LP		 556
557 assert(s);
558 assert(path);
2c4104f0
LP		 559
560 u = UNIT(s);
561
1b64d026
LP		 562 f = fopen(path, "re");
563 if (!f) {
2c4104f0
LP		 564 r = errno == ENOENT ? 0 : -errno;
565 goto finish;
566 }
567
5f4b19f4
LP		 568 if (fstat(fileno(f), &st) < 0) {
569 r = -errno;
570 goto finish;
571 }
572
1b64d026
LP		 573 free(u->source_path);
574 u->source_path = strdup(path);
575 if (!u->source_path) {
2c4104f0
LP		 576 r = -ENOMEM;
577 goto finish;
578 }
1b64d026 579 u->source_mtime = timespec_load(&st.st_mtim);
5f4b19f4
LP		 580
581 if (null_or_empty(&st)) {
ac155bb8 582 u->load_state = UNIT_MASKED;
5f4b19f4
LP		 583 r = 0;
584 goto finish;
585 }
586
1b64d026
LP		 587 s->is_sysv = true;
588
2c4104f0
LP		 589 while (!feof(f)) {
590 char l[LINE_MAX], *t;
591
592 if (!fgets(l, sizeof(l), f)) {
593 if (feof(f))
594 break;
595
596 r = -errno;
597 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
598 goto finish;
599 }
600
601 line++;
602
603 t = strstrip(l);
37e2941d
MS		 604 if (*t != '#') {
605 /* Try to figure out whether this init script supports
606 * the reload operation. This heuristic looks for
607 * "Usage" lines which include the reload option. */
608 if ( state == USAGE_CONTINUATION ||
609 (state == NORMAL && strcasestr(t, "usage"))) {
610 if (usage_contains_reload(t)) {
611 supports_reload = true;
612 state = NORMAL;
613 } else if (t[strlen(t)-1] == '\\')
614 state = USAGE_CONTINUATION;
615 else
616 state = NORMAL;
617 }
618
2c4104f0 619 continue;
37e2941d 620 }
2c4104f0
LP		 621
622 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
623 state = LSB;
23a177ef 624 s->sysv_has_lsb = true;
2c4104f0
LP		 625 continue;
626 }
627
628 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
629 state = NORMAL;
630 continue;
631 }
632
633 t++;
634 t += strspn(t, WHITESPACE);
635
636 if (state == NORMAL) {
637
638 /* Try to parse Red Hat style chkconfig headers */
639
c2b35af6 640 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 641 int start_priority;
8309400a 642 char runlevels[16], *k;
2c4104f0
LP		 643
644 state = NORMAL;
645
8309400a
LP		 646 if (sscanf(t+10, "%15s %i %*i",
647 runlevels,
648 &start_priority) != 2) {
2c4104f0
LP		 649
650 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
651 continue;
652 }
653
fbe9f3a9
LP		 654 /* A start priority gathered from the
655 * symlink farms is preferred over the
656 * data from the LSB header. */
8309400a 657 if (start_priority < 0 || start_priority > 99)
2c4104f0 658 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
ea87ca5a 659 else
8309400a
LP		 660 s->sysv_start_priority = start_priority;
661
662 char_array_0(runlevels);
663 k = delete_chars(runlevels, WHITESPACE "-");
664
665 if (k[0]) {
666 char *d;
667
668 if (!(d = strdup(k))) {
669 r = -ENOMEM;
670 goto finish;
671 }
672
673 free(s->sysv_runlevels);
674 s->sysv_runlevels = d;
2c4104f0
LP		 675 }
676
0b5d26f9 677 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 678
679 size_t k = strlen(t);
680 char *d;
0b5d26f9 681 const char *j;
2c4104f0
LP		 682
683 if (t[k-1] == '\\') {
684 state = DESCRIPTION;
685 t[k-1] = 0;
686 }
687
0b5d26f9
LP		 688 if ((j = strstrip(t+12)) && *j) {
689 if (!(d = strdup(j))) {
690 r = -ENOMEM;
691 goto finish;
692 }
693 } else
694 d = NULL;
2c4104f0 695
0b5d26f9
LP		 696 free(chkconfig_description);
697 chkconfig_description = d;
2c4104f0 698
c2b35af6 699 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 700
701 char *fn;
702
703 state = NORMAL;
704
705 fn = strstrip(t+8);
706 if (!path_is_absolute(fn)) {
707 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
708 continue;
709 }
710
711 if (!(fn = strdup(fn))) {
712 r = -ENOMEM;
713 goto finish;
714 }
715
716 free(s->pid_file);
717 s->pid_file = fn;
718 }
719
720 } else if (state == DESCRIPTION) {
721
722 /* Try to parse Red Hat style description
723 * continuation */
724
725 size_t k = strlen(t);
0b5d26f9 726 char *j;
2c4104f0
LP		 727
728 if (t[k-1] == '\\')
729 t[k-1] = 0;
730 else
731 state = NORMAL;
732
0b5d26f9
LP		 733 if ((j = strstrip(t)) && *j) {
734 char *d = NULL;
735
736 if (chkconfig_description)
b7def684 737 d = strjoin(chkconfig_description, " ", j, NULL);
0b5d26f9
LP		 738 else
739 d = strdup(j);
2c4104f0 740
0b5d26f9
LP		 741 if (!d) {
742 r = -ENOMEM;
743 goto finish;
744 }
745
746 free(chkconfig_description);
747 chkconfig_description = d;
748 }
2c4104f0
LP		 749
750 } else if (state == LSB || state == LSB_DESCRIPTION) {
751
c2b35af6 752 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 753 char *i, *w;
754 size_t z;
755
756 state = LSB;
757
f60f22df 758 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 759 char *n, *m;
760
761 if (!(n = strndup(w, z))) {
762 r = -ENOMEM;
763 goto finish;
764 }
765
9eb977db 766 r = sysv_translate_facility(n, path_get_file_name(path), &m);
2c4104f0
LP		 767 free(n);
768
769 if (r < 0)
770 goto finish;
771
772 if (r == 0)
773 continue;
774
bd77d0fc
LP		 775 if (unit_name_to_type(m) == UNIT_SERVICE)
776 r = unit_add_name(u, m);
9700edb4
LP		 777 else
778 /* NB: SysV targets
779 * which are provided
780 * by a service are
781 * pulled in by the
782 * services, as an
783 * indication that the
784 * generic service is
785 * now available. This
786 * is strictly
787 * one-way. The
788 * targets do NOT pull
789 * in the SysV
790 * services! */
791 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 792
2c4104f0 793 if (r < 0)
43a37549 794 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 795
796 free(m);
2c4104f0
LP		 797 }
798
c2b35af6
LP		 799 } else if (startswith_no_case(t, "Required-Start:") ||
800 startswith_no_case(t, "Should-Start:") ||
801 startswith_no_case(t, "X-Start-Before:") ||
802 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 803 char *i, *w;
804 size_t z;
805
806 state = LSB;
807
f60f22df 808 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 809 char *n, *m;
810
811 if (!(n = strndup(w, z))) {
812 r = -ENOMEM;
813 goto finish;
814 }
815
9eb977db 816 r = sysv_translate_facility(n, path_get_file_name(path), &m);
2c4104f0 817
e83c7c0b
LP		 818 if (r < 0) {
819 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
820 free(n);
821 continue;
822 }
823
824 free(n);
2c4104f0
LP		 825
826 if (r == 0)
827 continue;
828
c2b35af6 829 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 830
831 if (r < 0)
43a37549 832 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 833
834 free(m);
2c4104f0 835 }
c2b35af6 836 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 837 char *k, *d;
838
839 state = LSB;
840
841 k = delete_chars(t+14, WHITESPACE "-");
842
843 if (k[0] != 0) {
844 if (!(d = strdup(k))) {
845 r = -ENOMEM;
846 goto finish;
847 }
848
849 free(s->sysv_runlevels);
850 s->sysv_runlevels = d;
851 }
2c4104f0 852
0b5d26f9
LP		 853 } else if (startswith_no_case(t, "Description:")) {
854 char *d, *j;
ed4c1cc6 855
2c4104f0
LP		 856 state = LSB_DESCRIPTION;
857
0b5d26f9
LP		 858 if ((j = strstrip(t+12)) && *j) {
859 if (!(d = strdup(j))) {
860 r = -ENOMEM;
861 goto finish;
862 }
863 } else
864 d = NULL;
2c4104f0 865
0b5d26f9
LP		 866 free(long_description);
867 long_description = d;
2c4104f0 868
ed4c1cc6 869 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 870 char *d, *j;
2c4104f0 871
2c4104f0
LP		 872 state = LSB;
873
0b5d26f9
LP		 874 if ((j = strstrip(t+18)) && *j) {
875 if (!(d = strdup(j))) {
876 r = -ENOMEM;
877 goto finish;
878 }
879 } else
880 d = NULL;
2c4104f0 881
0b5d26f9
LP		 882 free(short_description);
883 short_description = d;
2c4104f0
LP		 884
885 } else if (state == LSB_DESCRIPTION) {
886
887 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 888 char *j;
2c4104f0 889
0b5d26f9
LP		 890 if ((j = strstrip(t)) && *j) {
891 char *d = NULL;
892
893 if (long_description)
b7def684 894 d = strjoin(long_description, " ", t, NULL);
0b5d26f9
LP		 895 else
896 d = strdup(j);
897
898 if (!d) {
899 r = -ENOMEM;
900 goto finish;
901 }
902
903 free(long_description);
904 long_description = d;
2c4104f0
LP		 905 }
906
2c4104f0
LP		 907 } else
908 state = LSB;
909 }
910 }
911 }
912
37e2941d 913 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
2c4104f0
LP		 914 goto finish;
915
a40eb732 916 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 917 /* If there a runlevels configured for this service
918 * but none of the standard ones, then we assume this
919 * is some special kind of service (which might be
920 * needed for early boot) and don't create any links
921 * to it. */
922
1124fe6f 923 UNIT(s)->default_dependencies = false;
09cd1ab1 924
09cd1ab1 925 /* Don't timeout special services during boot (like fsck) */
d568a335
MS		 926 s->timeout_start_usec = 0;
927 s->timeout_stop_usec = 0;
928 } else {
929 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
930 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
931 }
932
80876c20 933 /* Special setting for all SysV services */
1f48cf56 934 s->type = SERVICE_FORKING;
f8788303 935 s->remain_after_exit = !s->pid_file;
1835f23c 936 s->guess_main_pid = false;
525ee6f4 937 s->restart = SERVICE_RESTART_NO;
353e12c2 938 s->exec_context.ignore_sigpipe = false;
4819ff03 939 s->kill_context.kill_mode = KILL_PROCESS;
80876c20 940
0b5d26f9
LP		 941 /* We use the long description only if
942 * no short description is set. */
943
944 if (short_description)
945 description = short_description;
946 else if (chkconfig_description)
947 description = chkconfig_description;
948 else if (long_description)
949 description = long_description;
950 else
951 description = NULL;
952
953 if (description) {
954 char *d;
955
e527618d 956 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 957 r = -ENOMEM;
958 goto finish;
959 }
960
ac155bb8 961 u->description = d;
0b5d26f9
LP		 962 }
963
ea87ca5a
LP		 964 /* The priority that has been set in /etc/rcN.d/ hierarchies
965 * takes precedence over what is stored as default in the LSB
966 * header */
967 if (s->sysv_start_priority_from_rcnd >= 0)
968 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
969
ac155bb8 970 u->load_state = UNIT_LOADED;
23a177ef 971 r = 0;
2c4104f0
LP		 972
973finish:
974
975 if (f)
976 fclose(f);
977
0b5d26f9
LP		 978 free(short_description);
979 free(long_description);
980 free(chkconfig_description);
981
2c4104f0
LP		 982 return r;
983}
984
e537352b 985static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 986 char **p;
987
988 assert(s);
989 assert(name);
990
3cdebc21 991 /* For SysV services we strip the rc.* and *.sh
d017c6ca 992 * prefixes/suffixes. */
1bd8b818 993#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198 994 if (endswith(name, ".sh.service"))
d017c6ca 995 return -ENOENT;
5b819198
MB		 996#endif
997
5b819198
MB		 998#ifdef TARGET_FRUGALWARE
999 if (startswith(name, "rc."))
1000 return -ENOENT;
1001#endif
d017c6ca 1002
1124fe6f 1003 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 1004 char *path;
1005 int r;
1006
b7def684 1007 path = strjoin(*p, "/", name, NULL);
44d91056 1008 if (!path)
2c4104f0
LP		 1009 return -ENOMEM;
1010
1011 assert(endswith(path, ".service"));
1012 path[strlen(path)-8] = 0;
1013
e537352b 1014 r = service_load_sysv_path(s, path);
fbe9f3a9 1015
1bd8b818 1016#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1124fe6f 1017 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 1018 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 1019 strcat(path, ".sh");
1020 r = service_load_sysv_path(s, path);
1021 }
e1992852 1022#endif
2c4104f0
LP		 1023 free(path);
1024
e1992852 1025#ifdef TARGET_FRUGALWARE
1124fe6f 1026 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 1027 /* Try Frugalware style rc.* init scripts */
65530632 1028
b7def684 1029 path = strjoin(*p, "/rc.", name, NULL);
44d91056 1030 if (!path)
65530632
MV		 1031 return -ENOMEM;
1032
e1992852 1033 /* Drop .service suffix */
65530632
MV		 1034 path[strlen(path)-8] = 0;
1035 r = service_load_sysv_path(s, path);
1036 free(path);
1037 }
e1992852 1038#endif
65530632 1039
23a177ef 1040 if (r < 0)
2c4104f0 1041 return r;
23a177ef 1042
1124fe6f 1043 if ((UNIT(s)->load_state != UNIT_STUB))
23a177ef 1044 break;
2c4104f0
LP		 1045 }
1046
1047 return 0;
1048}
1049
e537352b 1050static int service_load_sysv(Service *s) {
2c4104f0
LP		 1051 const char *t;
1052 Iterator i;
1053 int r;
1054
5cb5a6ff
LP		 1055 assert(s);
1056
1057 /* Load service data from SysV init scripts, preferably with
1058 * LSB headers ... */
1059
1124fe6f 1060 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 1061 return 0;
1062
1124fe6f 1063 if ((t = UNIT(s)->id))
e537352b 1064 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 1065 return r;
1066
1124fe6f
MS		 1067 if (UNIT(s)->load_state == UNIT_STUB)
1068 SET_FOREACH(t, UNIT(s)->names, i) {
1069 if (t == UNIT(s)->id)
e537352b
LP		 1070 continue;
1071
e364ad06 1072 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 1073 return r;
1074
1124fe6f 1075 if (UNIT(s)->load_state != UNIT_STUB)
23a177ef
LP		 1076 break;
1077 }
2c4104f0
LP		 1078
1079 return 0;
5cb5a6ff 1080}
07459bb6 1081#endif
5cb5a6ff 1082
9fff8a1f 1083static int fsck_fix_order(Service *s) {
ac155bb8 1084 Unit *other;
9fff8a1f
LP		 1085 int r;
1086
1087 assert(s);
1088
1089 if (s->fsck_passno <= 0)
1090 return 0;
1091
1092 /* For each pair of services where both have an fsck priority
1093 * we order things based on it. */
1094
1124fe6f 1095 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1096 Service *t;
1097 UnitDependency d;
1098
595ed347 1099 t = SERVICE(other);
9fff8a1f
LP		 1100
1101 if (s == t)
1102 continue;
1103
1124fe6f 1104 if (UNIT(t)->load_state != UNIT_LOADED)
9fff8a1f
LP		 1105 continue;
1106
1107 if (t->fsck_passno <= 0)
1108 continue;
1109
1110 if (t->fsck_passno < s->fsck_passno)
1111 d = UNIT_AFTER;
1112 else if (t->fsck_passno > s->fsck_passno)
1113 d = UNIT_BEFORE;
1114 else
1115 continue;
1116
da19d5c1 1117 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1118 return r;
1119 }
1120
1121 return 0;
1122}
1123
243b1432
LP		 1124static int service_verify(Service *s) {
1125 assert(s);
1126
1124fe6f 1127 if (UNIT(s)->load_state != UNIT_LOADED)
243b1432
LP		 1128 return 0;
1129
1130 if (!s->exec_command[SERVICE_EXEC_START]) {
1124fe6f 1131 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
243b1432
LP		 1132 return -EINVAL;
1133 }
1134
34e9ba66
LP		 1135 if (s->type != SERVICE_ONESHOT &&
1136 s->exec_command[SERVICE_EXEC_START]->command_next) {
1124fe6f 1137 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
6cf6bbc2
LP		 1138 return -EINVAL;
1139 }
1140
05e343b7 1141 if (s->type == SERVICE_DBUS && !s->bus_name) {
1124fe6f 1142 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
4d0e5dbd
LP		 1143 return -EINVAL;
1144 }
1145
7e2668c6
LP		 1146 if (s->bus_name && s->type != SERVICE_DBUS)
1147 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1148
4819ff03 1149 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1124fe6f 1150 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
05e343b7
LP		 1151 return -EINVAL;
1152 }
1153
243b1432
LP		 1154 return 0;
1155}
1156
a40eb732
LP		 1157static int service_add_default_dependencies(Service *s) {
1158 int r;
1159
1160 assert(s);
1161
1162 /* Add a number of automatic dependencies useful for the
1163 * majority of services. */
1164
1165 /* First, pull in base system */
67445f4e 1166 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
a40eb732
LP		 1167
1168 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1169 return r;
1170
67445f4e 1171 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
a40eb732
LP		 1172
1173 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1174 return r;
1175 }
1176
1177 /* Second, activate normal shutdown */
ead8e478 1178 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1179}
1180
4dfc092a
LP		 1181static void service_fix_output(Service *s) {
1182 assert(s);
1183
1184 /* If nothing has been explicitly configured, patch default
1185 * output in. If input is socket/tty we avoid this however,
1186 * since in that case we want output to default to the same
1187 * place as we read input from. */
1188
1189 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1190 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1191 s->exec_context.std_input == EXEC_INPUT_NULL)
1124fe6f 1192 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
4dfc092a
LP		 1193
1194 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1195 s->exec_context.std_input == EXEC_INPUT_NULL)
1124fe6f 1196 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
4dfc092a
LP		 1197}
1198
e537352b
LP		 1199static int service_load(Unit *u) {
1200 int r;
1201 Service *s = SERVICE(u);
1202
1203 assert(s);
1e2e8133 1204
5cb5a6ff 1205 /* Load a .service file */
e537352b 1206 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1207 return r;
1208
07459bb6 1209#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1210 /* Load a classic init script as a fallback, if we couldn't find anything */
ac155bb8 1211 if (u->load_state == UNIT_STUB)
e537352b 1212 if ((r = service_load_sysv(s)) < 0)
23a177ef 1213 return r;
07459bb6 1214#endif
d46de8a1 1215
23a177ef 1216 /* Still nothing found? Then let's give up */
ac155bb8 1217 if (u->load_state == UNIT_STUB)
23a177ef 1218 return -ENOENT;
034c6ed7 1219
23a177ef
LP		 1220 /* We were able to load something, then let's add in the
1221 * dropin directories. */
1222 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1223 return r;
23a177ef
LP		 1224
1225 /* This is a new unit? Then let's add in some extras */
ac155bb8 1226 if (u->load_state == UNIT_LOADED) {
0b86feac
LP		 1227 if (s->type == _SERVICE_TYPE_INVALID)
1228 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1229
d568a335
MS		 1230 /* Oneshot services have disabled start timeout by default */
1231 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1232 s->timeout_start_usec = 0;
98709151 1233
4e2b0f9b
LP		 1234 service_fix_output(s);
1235
23a177ef
LP		 1236 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1237 return r;
1238
d686d8a9 1239 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1240 return r;
1241
07459bb6 1242#ifdef HAVE_SYSV_COMPAT
56d748b4 1243 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1244 return r;
07459bb6 1245#endif
05e343b7 1246
9fff8a1f
LP		 1247 if ((r = fsck_fix_order(s)) < 0)
1248 return r;
1249
ee0dd802 1250 if (s->bus_name)
05e343b7 1251 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1252 return r;
c952c6ec
LP		 1253
1254 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1255 s->notify_access = NOTIFY_MAIN;
a40eb732 1256
02c4ef9c
LP		 1257 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1258 s->notify_access = NOTIFY_MAIN;
1259
a40eb732 1260 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1261 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1262 return r;
1263
1124fe6f 1264 if (UNIT(s)->default_dependencies)
a40eb732
LP		 1265 if ((r = service_add_default_dependencies(s)) < 0)
1266 return r;
e06c73cc 1267
cba6e062 1268 r = unit_exec_context_defaults(u, &s->exec_context);
e06c73cc
LP		 1269 if (r < 0)
1270 return r;
8e274523
LP		 1271 }
1272
243b1432 1273 return service_verify(s);
034c6ed7
LP		 1274}
1275
87f0e418 1276static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1277
5cb5a6ff 1278 ServiceExecCommand c;
87f0e418 1279 Service *s = SERVICE(u);
47be870b
LP		 1280 const char *prefix2;
1281 char *p2;
5cb5a6ff
LP		 1282
1283 assert(s);
1284
47be870b
LP		 1285 p2 = strappend(prefix, "\t");
1286 prefix2 = p2 ? p2 : prefix;
44d8db9e 1287
5cb5a6ff 1288 fprintf(f,
81a2b7ce 1289 "%sService State: %s\n"
f42806df
LP		 1290 "%sResult: %s\n"
1291 "%sReload Result: %s\n"
81a2b7ce 1292 "%sPermissionsStartOnly: %s\n"
8e274523 1293 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1294 "%sRemainAfterExit: %s\n"
3185a36b 1295 "%sGuessMainPID: %s\n"
c952c6ec 1296 "%sType: %s\n"
2cf3143a 1297 "%sRestart: %s\n"
c952c6ec 1298 "%sNotifyAccess: %s\n",
81a2b7ce 1299 prefix, service_state_to_string(s->state),
f42806df
LP		 1300 prefix, service_result_to_string(s->result),
1301 prefix, service_result_to_string(s->reload_result),
81a2b7ce 1302 prefix, yes_no(s->permissions_start_only),
8e274523 1303 prefix, yes_no(s->root_directory_start_only),
02ee865a 1304 prefix, yes_no(s->remain_after_exit),
3185a36b 1305 prefix, yes_no(s->guess_main_pid),
c952c6ec 1306 prefix, service_type_to_string(s->type),
2cf3143a 1307 prefix, service_restart_to_string(s->restart),
c952c6ec 1308 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1309
70123e68
LP		 1310 if (s->control_pid > 0)
1311 fprintf(f,
bb00e604
LP		 1312 "%sControl PID: %lu\n",
1313 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1314
1315 if (s->main_pid > 0)
1316 fprintf(f,
6dfa5494
LP		 1317 "%sMain PID: %lu\n"
1318 "%sMain PID Known: %s\n"
1319 "%sMain PID Alien: %s\n",
1320 prefix, (unsigned long) s->main_pid,
1321 prefix, yes_no(s->main_pid_known),
1322 prefix, yes_no(s->main_pid_alien));
70123e68 1323
034c6ed7
LP		 1324 if (s->pid_file)
1325 fprintf(f,
1326 "%sPIDFile: %s\n",
1327 prefix, s->pid_file);
1328
05e343b7
LP		 1329 if (s->bus_name)
1330 fprintf(f,
1331 "%sBusName: %s\n"
1332 "%sBus Name Good: %s\n",
1333 prefix, s->bus_name,
1334 prefix, yes_no(s->bus_name_good));
1335
4819ff03 1336 kill_context_dump(&s->kill_context, f, prefix);
5cb5a6ff
LP		 1337 exec_context_dump(&s->exec_context, f, prefix);
1338
e537352b 1339 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1340
44d8db9e
LP		 1341 if (!s->exec_command[c])
1342 continue;
1343
40d50879 1344 fprintf(f, "%s-> %s:\n",
94f04347 1345 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1346
1347 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1348 }
44d8db9e 1349
07459bb6 1350#ifdef HAVE_SYSV_COMPAT
1b64d026 1351 if (s->is_sysv)
2c4104f0 1352 fprintf(f,
9fff8a1f
LP		 1353 "%sSysV Init Script has LSB Header: %s\n"
1354 "%sSysVEnabled: %s\n",
9fff8a1f
LP		 1355 prefix, yes_no(s->sysv_has_lsb),
1356 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1357
1358 if (s->sysv_start_priority >= 0)
1359 fprintf(f,
9fff8a1f
LP		 1360 "%sSysVStartPriority: %i\n",
1361 prefix, s->sysv_start_priority);
2c4104f0 1362
8309400a
LP		 1363 if (s->sysv_runlevels)
1364 fprintf(f, "%sSysVRunLevels: %s\n",
1365 prefix, s->sysv_runlevels);
07459bb6 1366#endif
23a177ef 1367
9fff8a1f
LP		 1368 if (s->fsck_passno > 0)
1369 fprintf(f,
1370 "%sFsckPassNo: %i\n",
1371 prefix, s->fsck_passno);
1372
8c47c732
LP		 1373 if (s->status_text)
1374 fprintf(f, "%sStatus Text: %s\n",
1375 prefix, s->status_text);
1376
47be870b 1377 free(p2);
5cb5a6ff
LP		 1378}
1379
c5419d42 1380static int service_load_pid_file(Service *s, bool may_warn) {
034c6ed7 1381 char *k;
034c6ed7 1382 int r;
5925dd3c 1383 pid_t pid;
034c6ed7
LP		 1384
1385 assert(s);
1386
034c6ed7 1387 if (!s->pid_file)
13230d5d 1388 return -ENOENT;
034c6ed7 1389
5375410b 1390 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
c5419d42 1391 if (may_warn)
3a111838
MS		 1392 log_info("PID file %s not readable (yet?) after %s.",
1393 s->pid_file, service_state_to_string(s->state));
034c6ed7 1394 return r;
5375410b 1395 }
034c6ed7 1396
5925dd3c
LP		 1397 r = parse_pid(k, &pid);
1398 free(k);
034c6ed7 1399
5925dd3c
LP		 1400 if (r < 0)
1401 return r;
406eaf93 1402
5925dd3c 1403 if (kill(pid, 0) < 0 && errno != EPERM) {
c5419d42 1404 if (may_warn)
3a111838
MS		 1405 log_info("PID %lu read from file %s does not exist.",
1406 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1407 return -ESRCH;
1408 }
1409
db01f8b3
MS		 1410 if (s->main_pid_known) {
1411 if (pid == s->main_pid)
1412 return 0;
1413
1414 log_debug("Main PID changing: %lu -> %lu",
1415 (unsigned long) s->main_pid, (unsigned long) pid);
1416 service_unwatch_main_pid(s);
1417 s->main_pid_known = false;
3a111838
MS		 1418 } else
1419 log_debug("Main PID loaded: %lu", (unsigned long) pid);
db01f8b3 1420
5925dd3c 1421 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1422 return r;
1423
5925dd3c
LP		 1424 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1425 /* FIXME: we need to do something here */
1426 return r;
034c6ed7
LP		 1427
1428 return 0;
1429}
1430
4fbf50b3
LP		 1431static int service_search_main_pid(Service *s) {
1432 pid_t pid;
1433 int r;
1434
1435 assert(s);
1436
3185a36b
LP		 1437 /* If we know it anyway, don't ever fallback to unreliable
1438 * heuristics */
4fbf50b3
LP		 1439 if (s->main_pid_known)
1440 return 0;
1441
3185a36b
LP		 1442 if (!s->guess_main_pid)
1443 return 0;
1444
4fbf50b3
LP		 1445 assert(s->main_pid <= 0);
1446
1124fe6f 1447 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
4fbf50b3
LP		 1448 return -ENOENT;
1449
3a111838 1450 log_debug("Main PID guessed: %lu", (unsigned long) pid);
4fbf50b3
LP		 1451 if ((r = service_set_main_pid(s, pid)) < 0)
1452 return r;
1453
1454 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1455 /* FIXME: we need to do something here */
1456 return r;
1457
1458 return 0;
1459}
1460
6bda96a0 1461static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
ceee3d82 1462 Iterator i;
57020a3a 1463 Unit *u;
3e33402a
LP		 1464
1465 assert(s);
1466
f976f3f6
LP		 1467 /* Notifies all our sockets when we die */
1468
6cf6bbc2 1469 if (s->socket_fd >= 0)
57020a3a 1470 return;
3e33402a 1471
1124fe6f 1472 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
ac155bb8 1473 if (u->type == UNIT_SOCKET)
6bda96a0 1474 socket_notify_service_dead(SOCKET(u), failed_permanent);
3e33402a 1475
57020a3a 1476 return;
ceee3d82
LP		 1477}
1478
034c6ed7
LP		 1479static void service_set_state(Service *s, ServiceState state) {
1480 ServiceState old_state;
e056b01d 1481 const UnitActiveState *table;
5cb5a6ff
LP		 1482 assert(s);
1483
e056b01d
LP		 1484 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1485
034c6ed7 1486 old_state = s->state;
5cb5a6ff 1487 s->state = state;
034c6ed7 1488
3a111838
MS		 1489 service_unwatch_pid_file(s);
1490
034c6ed7
LP		 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 &&
1500 state != SERVICE_FINAL_SIGKILL &&
1501 state != SERVICE_AUTO_RESTART)
acbb0225 1502 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1503
7d55e835
LP		 1504 if (state != SERVICE_START &&
1505 state != SERVICE_START_POST &&
034c6ed7
LP		 1506 state != SERVICE_RUNNING &&
1507 state != SERVICE_RELOAD &&
1508 state != SERVICE_STOP &&
1509 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1510 state != SERVICE_STOP_SIGKILL) {
5e94833f 1511 service_unwatch_main_pid(s);
867b3b7d
LP		 1512 s->main_command = NULL;
1513 }
034c6ed7
LP		 1514
1515 if (state != SERVICE_START_PRE &&
1516 state != SERVICE_START &&
1517 state != SERVICE_START_POST &&
1518 state != SERVICE_RELOAD &&
1519 state != SERVICE_STOP &&
1520 state != SERVICE_STOP_SIGTERM &&
1521 state != SERVICE_STOP_SIGKILL &&
1522 state != SERVICE_STOP_POST &&
1523 state != SERVICE_FINAL_SIGTERM &&
e537352b 1524 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1525 service_unwatch_control_pid(s);
034c6ed7 1526 s->control_command = NULL;
a16e1123 1527 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1528 }
034c6ed7 1529
ceee3d82
LP		 1530 if (state == SERVICE_DEAD ||
1531 state == SERVICE_STOP ||
1532 state == SERVICE_STOP_SIGTERM ||
1533 state == SERVICE_STOP_SIGKILL ||
1534 state == SERVICE_STOP_POST ||
1535 state == SERVICE_FINAL_SIGTERM ||
1536 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1537 state == SERVICE_FAILED ||
ceee3d82 1538 state == SERVICE_AUTO_RESTART)
c2f34808 1539 service_notify_sockets_dead(s, false);
ceee3d82 1540
4f2d528d
LP		 1541 if (state != SERVICE_START_PRE &&
1542 state != SERVICE_START &&
6cf6bbc2
LP		 1543 state != SERVICE_START_POST &&
1544 state != SERVICE_RUNNING &&
1545 state != SERVICE_RELOAD &&
1546 state != SERVICE_STOP &&
1547 state != SERVICE_STOP_SIGTERM &&
1548 state != SERVICE_STOP_SIGKILL &&
1549 state != SERVICE_STOP_POST &&
1550 state != SERVICE_FINAL_SIGTERM &&
1551 state != SERVICE_FINAL_SIGKILL &&
1124fe6f 1552 !(state == SERVICE_DEAD && UNIT(s)->job)) {
4f2d528d 1553 service_close_socket_fd(s);
6cf6bbc2
LP		 1554 service_connection_unref(s);
1555 }
4f2d528d 1556
a6927d7f
MO		 1557 if (state == SERVICE_STOP)
1558 service_stop_watchdog(s);
1559
f6023656
LP		 1560 /* For the inactive states unit_notify() will trim the cgroup,
1561 * but for exit we have to do that ourselves... */
1124fe6f
MS		 1562 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1563 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
f6023656 1564
e537352b 1565 if (old_state != state)
23635a85
ZJS		 1566 log_struct(LOG_DEBUG,
1567 "UNIT=%s", UNIT(s)->id,
1568 "MESSAGE=%s changed %s -> %s", UNIT(s)->id,
1569 service_state_to_string(old_state),
1570 service_state_to_string(state),
1571 NULL);
acbb0225 1572
e056b01d 1573 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
f42806df 1574 s->reload_result = SERVICE_SUCCESS;
034c6ed7
LP		 1575}
1576
a16e1123
LP		 1577static int service_coldplug(Unit *u) {
1578 Service *s = SERVICE(u);
1579 int r;
1580
1581 assert(s);
1582 assert(s->state == SERVICE_DEAD);
1583
1584 if (s->deserialized_state != s->state) {
1585
1586 if (s->deserialized_state == SERVICE_START_PRE ||
1587 s->deserialized_state == SERVICE_START ||
1588 s->deserialized_state == SERVICE_START_POST ||
1589 s->deserialized_state == SERVICE_RELOAD ||
1590 s->deserialized_state == SERVICE_STOP ||
1591 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1592 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1593 s->deserialized_state == SERVICE_STOP_POST ||
1594 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1595 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f 1596 s->deserialized_state == SERVICE_AUTO_RESTART) {
d568a335 1597 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
e558336f
LP		 1598 usec_t k;
1599
d568a335 1600 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
e558336f
LP		 1601
1602 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1603 return r;
1604 }
1605 }
a16e1123
LP		 1606
1607 if ((s->deserialized_state == SERVICE_START &&
1608 (s->type == SERVICE_FORKING ||
8c47c732 1609 s->type == SERVICE_DBUS ||
34e9ba66 1610 s->type == SERVICE_ONESHOT ||
8c47c732 1611 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1612 s->deserialized_state == SERVICE_START_POST ||
1613 s->deserialized_state == SERVICE_RUNNING ||
1614 s->deserialized_state == SERVICE_RELOAD ||
1615 s->deserialized_state == SERVICE_STOP ||
1616 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1617 s->deserialized_state == SERVICE_STOP_SIGKILL)
1618 if (s->main_pid > 0)
1619 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1620 return r;
1621
1622 if (s->deserialized_state == SERVICE_START_PRE ||
1623 s->deserialized_state == SERVICE_START ||
1624 s->deserialized_state == SERVICE_START_POST ||
1625 s->deserialized_state == SERVICE_RELOAD ||
1626 s->deserialized_state == SERVICE_STOP ||
1627 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1628 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1629 s->deserialized_state == SERVICE_STOP_POST ||
1630 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1631 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1632 if (s->control_pid > 0)
1633 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1634 return r;
1635
bb242b7b
MO		 1636 if (s->deserialized_state == SERVICE_START_POST ||
1637 s->deserialized_state == SERVICE_RUNNING)
1638 service_handle_watchdog(s);
1639
a16e1123
LP		 1640 service_set_state(s, s->deserialized_state);
1641 }
a16e1123
LP		 1642 return 0;
1643}
1644
44d8db9e
LP		 1645static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1646 Iterator i;
1647 int r;
1648 int *rfds = NULL;
1649 unsigned rn_fds = 0;
57020a3a 1650 Unit *u;
44d8db9e
LP		 1651
1652 assert(s);
1653 assert(fds);
1654 assert(n_fds);
1655
6cf6bbc2
LP		 1656 if (s->socket_fd >= 0)
1657 return 0;
1658
1124fe6f 1659 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
44d8db9e
LP		 1660 int *cfds;
1661 unsigned cn_fds;
57020a3a
LP		 1662 Socket *sock;
1663
ac155bb8 1664 if (u->type != UNIT_SOCKET)
57020a3a
LP		 1665 continue;
1666
1667 sock = SOCKET(u);
44d8db9e 1668
47be870b 1669 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1670 goto fail;
1671
1672 if (!cfds)
1673 continue;
1674
1675 if (!rfds) {
1676 rfds = cfds;
1677 rn_fds = cn_fds;
1678 } else {
1679 int *t;
1680
1681 if (!(t = new(int, rn_fds+cn_fds))) {
1682 free(cfds);
1683 r = -ENOMEM;
1684 goto fail;
1685 }
1686
9c1b183c
LP		 1687 memcpy(t, rfds, rn_fds * sizeof(int));
1688 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1689 free(rfds);
1690 free(cfds);
1691
1692 rfds = t;
1693 rn_fds = rn_fds+cn_fds;
1694 }
1695 }
1696
1697 *fds = rfds;
1698 *n_fds = rn_fds;
3e33402a 1699
44d8db9e
LP		 1700 return 0;
1701
1702fail:
1703 free(rfds);
3e33402a 1704
44d8db9e
LP		 1705 return r;
1706}
1707
81a2b7ce
LP		 1708static int service_spawn(
1709 Service *s,
1710 ExecCommand *c,
1711 bool timeout,
1712 bool pass_fds,
1713 bool apply_permissions,
1714 bool apply_chroot,
1e3ad081 1715 bool apply_tty_stdin,
c952c6ec 1716 bool set_notify_socket,
ecedd90f 1717 bool is_control,
81a2b7ce
LP		 1718 pid_t *_pid) {
1719
034c6ed7
LP		 1720 pid_t pid;
1721 int r;
6cf6bbc2 1722 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1723 unsigned n_fds = 0, n_env = 0;
1724 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1725
1726 assert(s);
1727 assert(c);
1728 assert(_pid);
1729
6cf6bbc2
LP		 1730 if (pass_fds ||
1731 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1732 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1733 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1734
4f2d528d
LP		 1735 if (s->socket_fd >= 0) {
1736 fds = &s->socket_fd;
1737 n_fds = 1;
6cf6bbc2
LP		 1738 } else {
1739 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1740 goto fail;
1741
1742 fds = fdsbuf;
1743 }
4f2d528d 1744 }
44d8db9e 1745
d568a335
MS		 1746 if (timeout && s->timeout_start_usec) {
1747 r = unit_watch_timer(UNIT(s), s->timeout_start_usec, &s->timer_watch);
1748 if (r < 0)
034c6ed7
LP		 1749 goto fail;
1750 } else
acbb0225 1751 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1752
9e2f7c11
LP		 1753 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1754 r = -ENOMEM;
1755 goto fail;
1756 }
1757
97ae63e2
LP		 1758 our_env = new0(char*, 5);
1759 if (!our_env) {
2105e76a
LP		 1760 r = -ENOMEM;
1761 goto fail;
1762 }
c952c6ec 1763
2105e76a 1764 if (set_notify_socket)
1124fe6f 1765 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
c952c6ec
LP		 1766 r = -ENOMEM;
1767 goto fail;
1768 }
1769
2105e76a
LP		 1770 if (s->main_pid > 0)
1771 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1772 r = -ENOMEM;
1773 goto fail;
1774 }
2105e76a 1775
6e0bcc98
MO		 1776 if (s->watchdog_usec > 0)
1777 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1778 r = -ENOMEM;
1779 goto fail;
1780 }
1781
97ae63e2
LP		 1782 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1783 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1784 r = -ENOMEM;
1785 goto fail;
1786 }
1787
1788 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1789 if (!final_env) {
2105e76a
LP		 1790 r = -ENOMEM;
1791 goto fail;
1792 }
c952c6ec 1793
9e2f7c11
LP		 1794 r = exec_spawn(c,
1795 argv,
1796 &s->exec_context,
1797 fds, n_fds,
2105e76a 1798 final_env,
9e2f7c11
LP		 1799 apply_permissions,
1800 apply_chroot,
1e3ad081 1801 apply_tty_stdin,
1124fe6f
MS		 1802 UNIT(s)->manager->confirm_spawn,
1803 UNIT(s)->cgroup_bondings,
1804 UNIT(s)->cgroup_attributes,
ecedd90f 1805 is_control ? "control" : NULL,
62bca2c6 1806 UNIT(s)->id,
f2b68789 1807 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
9e2f7c11
LP		 1808 &pid);
1809
9e2f7c11 1810 if (r < 0)
034c6ed7
LP		 1811 goto fail;
1812
87f0e418 1813 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1814 /* FIXME: we need to do something here */
1815 goto fail;
1816
2105e76a
LP		 1817 free(fdsbuf);
1818 strv_free(argv);
1819 strv_free(our_env);
1820 strv_free(final_env);
1821
034c6ed7
LP		 1822 *_pid = pid;
1823
5cb5a6ff 1824 return 0;
034c6ed7
LP		 1825
1826fail:
2105e76a 1827 free(fdsbuf);
c952c6ec 1828 strv_free(argv);
2105e76a
LP		 1829 strv_free(our_env);
1830 strv_free(final_env);
c952c6ec 1831
034c6ed7 1832 if (timeout)
acbb0225 1833 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1834
1835 return r;
1836}
1837
80876c20
LP		 1838static int main_pid_good(Service *s) {
1839 assert(s);
1840
1841 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1842 * don't know */
1843
1844 /* If we know the pid file, then lets just check if it is
1845 * still valid */
6dfa5494
LP		 1846 if (s->main_pid_known) {
1847
1848 /* If it's an alien child let's check if it is still
1849 * alive ... */
1850 if (s->main_pid_alien)
1851 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1852
1853 /* .. otherwise assume we'll get a SIGCHLD for it,
1854 * which we really should wait for to collect exit
1855 * status and code */
80876c20 1856 return s->main_pid > 0;
6dfa5494 1857 }
80876c20
LP		 1858
1859 /* We don't know the pid */
1860 return -EAGAIN;
1861}
1862
1863static int control_pid_good(Service *s) {
1864 assert(s);
1865
1866 return s->control_pid > 0;
1867}
1868
1869static int cgroup_good(Service *s) {
1870 int r;
1871
1872 assert(s);
1873
1124fe6f 1874 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
80876c20
LP		 1875 return r;
1876
1877 return !r;
1878}
1879
f42806df 1880static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
034c6ed7
LP		 1881 int r;
1882 assert(s);
1883
f42806df
LP		 1884 if (f != SERVICE_SUCCESS)
1885 s->result = f;
034c6ed7 1886
0c7f15b3
MS		 1887 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1888
034c6ed7 1889 if (allow_restart &&
47342320 1890 !s->forbid_restart &&
034c6ed7 1891 (s->restart == SERVICE_RESTART_ALWAYS ||
f42806df
LP		 1892 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1893 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1894 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
96342de6
LN		 1895 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1896 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1897 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1898 (s->result != SERVICE_FAILURE_SIGNAL ||
1899 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1900 ) {
034c6ed7 1901
f42806df
LP		 1902 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1903 if (r < 0)
034c6ed7
LP		 1904 goto fail;
1905
1906 service_set_state(s, SERVICE_AUTO_RESTART);
0c7f15b3 1907 }
034c6ed7 1908
47342320
LP		 1909 s->forbid_restart = false;
1910
034c6ed7
LP		 1911 return;
1912
1913fail:
1124fe6f 1914 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
f42806df 1915 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
034c6ed7
LP		 1916}
1917
f42806df 1918static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
034c6ed7 1919
f42806df 1920static void service_enter_stop_post(Service *s, ServiceResult f) {
034c6ed7
LP		 1921 int r;
1922 assert(s);
1923
f42806df
LP		 1924 if (f != SERVICE_SUCCESS)
1925 s->result = f;
034c6ed7 1926
5e94833f
LP		 1927 service_unwatch_control_pid(s);
1928
80876c20 1929 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1930 s->control_command_id = SERVICE_EXEC_STOP_POST;
1931
ecedd90f
LP		 1932 r = service_spawn(s,
1933 s->control_command,
1934 true,
1935 false,
1936 !s->permissions_start_only,
1937 !s->root_directory_start_only,
1938 true,
1939 false,
1940 true,
1941 &s->control_pid);
1942 if (r < 0)
034c6ed7
LP		 1943 goto fail;
1944
d6ea93e3 1945
80876c20
LP		 1946 service_set_state(s, SERVICE_STOP_POST);
1947 } else
f42806df 1948 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 1949
1950 return;
1951
1952fail:
1124fe6f 1953 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 1954 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 1955}
1956
f42806df 1957static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
034c6ed7 1958 int r;
ca949c9d
LP		 1959 Set *pid_set = NULL;
1960 bool wait_for_exit = false;
034c6ed7
LP		 1961
1962 assert(s);
1963
f42806df
LP		 1964 if (f != SERVICE_SUCCESS)
1965 s->result = f;
034c6ed7 1966
4819ff03
LP		 1967 if (s->kill_context.kill_mode != KILL_NONE) {
1968 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
034c6ed7 1969
ca949c9d 1970 if (s->main_pid > 0) {
cd25cce9 1971 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1972 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1973 else
6dfa5494 1974 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1975 }
1976
ca949c9d 1977 if (s->control_pid > 0) {
cd25cce9 1978 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1979 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1980 else
1981 wait_for_exit = true;
1982 }
50159e6a 1983
4819ff03 1984 if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1985
4819ff03
LP		 1986 pid_set = set_new(trivial_hash_func, trivial_compare_func);
1987 if (!pid_set) {
ca949c9d 1988 r = -ENOMEM;
50159e6a 1989 goto fail;
ca949c9d
LP		 1990 }
1991
1992 /* Exclude the main/control pids from being killed via the cgroup */
1993 if (s->main_pid > 0)
1994 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1995 goto fail;
1996
1997 if (s->control_pid > 0)
1998 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1999 goto fail;
2000
88f3e0c9 2001 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
ecedd90f 2002 if (r < 0) {
ca949c9d
LP		 2003 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2004 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 2005 } else if (r > 0)
ca949c9d
LP		 2006 wait_for_exit = true;
2007
2008 set_free(pid_set);
da19d5c1 2009 pid_set = NULL;
50159e6a 2010 }
d6ea93e3 2011 }
034c6ed7 2012
ca949c9d 2013 if (wait_for_exit) {
d568a335
MS		 2014 if (s->timeout_stop_usec > 0) {
2015 r = unit_watch_timer(UNIT(s), s->timeout_stop_usec, &s->timer_watch);
2016 if (r < 0)
e558336f 2017 goto fail;
d568a335 2018 }
d6ea93e3 2019
80876c20
LP		 2020 service_set_state(s, state);
2021 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 2022 service_enter_stop_post(s, SERVICE_SUCCESS);
80876c20 2023 else
f42806df 2024 service_enter_dead(s, SERVICE_SUCCESS, true);
034c6ed7
LP		 2025
2026 return;
2027
2028fail:
1124fe6f 2029 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2030
80876c20 2031 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 2032 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
034c6ed7 2033 else
f42806df 2034 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
ca949c9d
LP		 2035
2036 if (pid_set)
2037 set_free(pid_set);
034c6ed7
LP		 2038}
2039
f42806df 2040static void service_enter_stop(Service *s, ServiceResult f) {
034c6ed7 2041 int r;
5925dd3c 2042
034c6ed7
LP		 2043 assert(s);
2044
f42806df
LP		 2045 if (f != SERVICE_SUCCESS)
2046 s->result = f;
034c6ed7 2047
5e94833f
LP		 2048 service_unwatch_control_pid(s);
2049
80876c20 2050 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 2051 s->control_command_id = SERVICE_EXEC_STOP;
2052
ecedd90f
LP		 2053 r = service_spawn(s,
2054 s->control_command,
2055 true,
2056 false,
2057 !s->permissions_start_only,
2058 !s->root_directory_start_only,
2059 false,
2060 false,
2061 true,
2062 &s->control_pid);
2063 if (r < 0)
034c6ed7
LP		 2064 goto fail;
2065
80876c20
LP		 2066 service_set_state(s, SERVICE_STOP);
2067 } else
f42806df 2068 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 2069
2070 return;
2071
2072fail:
1124fe6f 2073 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2074 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2075}
2076
f42806df 2077static void service_enter_running(Service *s, ServiceResult f) {
4eab639f 2078 int main_pid_ok, cgroup_ok;
80876c20
LP		 2079 assert(s);
2080
f42806df
LP		 2081 if (f != SERVICE_SUCCESS)
2082 s->result = f;
80876c20 2083
4eab639f
LP		 2084 main_pid_ok = main_pid_good(s);
2085 cgroup_ok = cgroup_good(s);
2086
2087 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 2088 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 2089 service_set_state(s, SERVICE_RUNNING);
02ee865a 2090 else if (s->remain_after_exit)
80876c20
LP		 2091 service_set_state(s, SERVICE_EXITED);
2092 else
f42806df 2093 service_enter_stop(s, SERVICE_SUCCESS);
80876c20
LP		 2094}
2095
034c6ed7
LP		 2096static void service_enter_start_post(Service *s) {
2097 int r;
2098 assert(s);
2099
5e94833f
LP		 2100 service_unwatch_control_pid(s);
2101
bb242b7b
MO		 2102 if (s->watchdog_usec > 0)
2103 service_reset_watchdog(s);
2104
80876c20 2105 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2106 s->control_command_id = SERVICE_EXEC_START_POST;
2107
ecedd90f
LP		 2108 r = service_spawn(s,
2109 s->control_command,
2110 true,
2111 false,
2112 !s->permissions_start_only,
2113 !s->root_directory_start_only,
2114 false,
2115 false,
2116 true,
2117 &s->control_pid);
2118 if (r < 0)
034c6ed7
LP		 2119 goto fail;
2120
80876c20
LP		 2121 service_set_state(s, SERVICE_START_POST);
2122 } else
f42806df 2123 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2124
2125 return;
2126
2127fail:
1124fe6f 2128 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2129 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2130}
2131
2132static void service_enter_start(Service *s) {
2133 pid_t pid;
2134 int r;
867b3b7d 2135 ExecCommand *c;
034c6ed7
LP		 2136
2137 assert(s);
2138
2139 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2140 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2141
80876c20
LP		 2142 if (s->type == SERVICE_FORKING)
2143 service_unwatch_control_pid(s);
2144 else
2145 service_unwatch_main_pid(s);
2146
8f53a7b8
LP		 2147 /* We want to ensure that nobody leaks processes from
2148 * START_PRE here, so let's go on a killing spree, People
2149 * should not spawn long running processes from START_PRE. */
88f3e0c9 2150 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
8f53a7b8 2151
867b3b7d
LP		 2152 if (s->type == SERVICE_FORKING) {
2153 s->control_command_id = SERVICE_EXEC_START;
2154 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2155
2156 s->main_command = NULL;
2157 } else {
2158 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2159 s->control_command = NULL;
2160
2161 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2162 }
34e9ba66 2163
ecedd90f
LP		 2164 r = service_spawn(s,
2165 c,
98709151 2166 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
ecedd90f
LP		 2167 true,
2168 true,
2169 true,
2170 true,
2171 s->notify_access != NOTIFY_NONE,
2172 false,
2173 &pid);
2174 if (r < 0)
034c6ed7
LP		 2175 goto fail;
2176
f2b68789 2177 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
034c6ed7
LP		 2178 /* For simple services we immediately start
2179 * the START_POST binaries. */
2180
5925dd3c 2181 service_set_main_pid(s, pid);
034c6ed7
LP		 2182 service_enter_start_post(s);
2183
2184 } else if (s->type == SERVICE_FORKING) {
2185
2186 /* For forking services we wait until the start
2187 * process exited. */
2188
e55224ca 2189 s->control_pid = pid;
80876c20
LP		 2190 service_set_state(s, SERVICE_START);
2191
34e9ba66 2192 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2193 s->type == SERVICE_DBUS ||
2194 s->type == SERVICE_NOTIFY) {
7d55e835 2195
34e9ba66 2196 /* For oneshot services we wait until the start
7d55e835
LP		 2197 * process exited, too, but it is our main process. */
2198
05e343b7 2199 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2200 * but wait for the bus name to appear on the
2201 * bus. Notify services are similar. */
05e343b7 2202
5925dd3c 2203 service_set_main_pid(s, pid);
80876c20 2204 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2205 } else
2206 assert_not_reached("Unknown service type");
2207
2208 return;
2209
2210fail:
1124fe6f 2211 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2212 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2213}
2214
2215static void service_enter_start_pre(Service *s) {
2216 int r;
2217
2218 assert(s);
2219
5e94833f
LP		 2220 service_unwatch_control_pid(s);
2221
80876c20 2222 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
8f53a7b8
LP		 2223
2224 /* Before we start anything, let's clear up what might
2225 * be left from previous runs. */
88f3e0c9 2226 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
8f53a7b8 2227
867b3b7d
LP		 2228 s->control_command_id = SERVICE_EXEC_START_PRE;
2229
ecedd90f
LP		 2230 r = service_spawn(s,
2231 s->control_command,
2232 true,
2233 false,
2234 !s->permissions_start_only,
2235 !s->root_directory_start_only,
2236 true,
2237 false,
2238 true,
2239 &s->control_pid);
2240 if (r < 0)
034c6ed7
LP		 2241 goto fail;
2242
80876c20
LP		 2243 service_set_state(s, SERVICE_START_PRE);
2244 } else
034c6ed7
LP		 2245 service_enter_start(s);
2246
2247 return;
2248
2249fail:
1124fe6f 2250 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2251 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
034c6ed7
LP		 2252}
2253
2254static void service_enter_restart(Service *s) {
2255 int r;
398ef8ba
LP		 2256 DBusError error;
2257
034c6ed7 2258 assert(s);
398ef8ba 2259 dbus_error_init(&error);
034c6ed7 2260
a8bb2e65
LP		 2261 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2262 /* Don't restart things if we are going down anyway */
2263 log_info("Stop job pending for unit, delaying automatic restart.");
2edfa366 2264
a8bb2e65
LP		 2265 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
2266 if (r < 0)
2edfa366 2267 goto fail;
feae8adb
DW		 2268
2269 return;
2edfa366
LP		 2270 }
2271
48bb5876
DW		 2272 /* Any units that are bound to this service must also be
2273 * restarted. We use JOB_RESTART (instead of the more obvious
2274 * JOB_START) here so that those dependency jobs will be added
2275 * as well. */
2276 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2277 if (r < 0)
034c6ed7
LP		 2278 goto fail;
2279
a8bb2e65
LP		 2280 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2281 * it will be canceled as part of the service_stop() call that
2282 * is executed as part of JOB_RESTART. */
2283
1124fe6f 2284 log_debug("%s scheduled restart job.", UNIT(s)->id);
034c6ed7
LP		 2285 return;
2286
2287fail:
1124fe6f 2288 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
f42806df 2289 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
398ef8ba
LP		 2290
2291 dbus_error_free(&error);
034c6ed7
LP		 2292}
2293
2294static void service_enter_reload(Service *s) {
2295 int r;
2296
2297 assert(s);
2298
5e94833f
LP		 2299 service_unwatch_control_pid(s);
2300
80876c20 2301 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2302 s->control_command_id = SERVICE_EXEC_RELOAD;
2303
ecedd90f
LP		 2304 r = service_spawn(s,
2305 s->control_command,
2306 true,
2307 false,
2308 !s->permissions_start_only,
2309 !s->root_directory_start_only,
2310 false,
2311 false,
2312 true,
2313 &s->control_pid);
2314 if (r < 0)
034c6ed7
LP		 2315 goto fail;
2316
80876c20
LP		 2317 service_set_state(s, SERVICE_RELOAD);
2318 } else
f42806df 2319 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2320
2321 return;
2322
2323fail:
1124fe6f 2324 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
f42806df
LP		 2325 s->reload_result = SERVICE_FAILURE_RESOURCES;
2326 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2327}
2328
f42806df 2329static void service_run_next_control(Service *s) {
034c6ed7
LP		 2330 int r;
2331
2332 assert(s);
2333 assert(s->control_command);
2334 assert(s->control_command->command_next);
2335
34e9ba66 2336 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2337
34e9ba66 2338 s->control_command = s->control_command->command_next;
5e94833f
LP		 2339 service_unwatch_control_pid(s);
2340
ecedd90f
LP		 2341 r = service_spawn(s,
2342 s->control_command,
2343 true,
2344 false,
2345 !s->permissions_start_only,
2346 !s->root_directory_start_only,
2347 s->control_command_id == SERVICE_EXEC_START_PRE ||
2348 s->control_command_id == SERVICE_EXEC_STOP_POST,
2349 false,
2350 true,
2351 &s->control_pid);
2352 if (r < 0)
034c6ed7
LP		 2353 goto fail;
2354
2355 return;
2356
2357fail:
1124fe6f 2358 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2359
80876c20 2360 if (s->state == SERVICE_START_PRE)
f42806df 2361 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
80876c20 2362 else if (s->state == SERVICE_STOP)
f42806df 2363 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7 2364 else if (s->state == SERVICE_STOP_POST)
f42806df 2365 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
e2f3b44c 2366 else if (s->state == SERVICE_RELOAD) {
f42806df
LP		 2367 s->reload_result = SERVICE_FAILURE_RESOURCES;
2368 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c 2369 } else
f42806df 2370 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
5cb5a6ff
LP		 2371}
2372
f42806df 2373static void service_run_next_main(Service *s) {
34e9ba66
LP		 2374 pid_t pid;
2375 int r;
2376
2377 assert(s);
867b3b7d
LP		 2378 assert(s->main_command);
2379 assert(s->main_command->command_next);
2380 assert(s->type == SERVICE_ONESHOT);
34e9ba66 2381
867b3b7d 2382 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2383 service_unwatch_main_pid(s);
2384
ecedd90f
LP		 2385 r = service_spawn(s,
2386 s->main_command,
98709151 2387 true,
ecedd90f
LP		 2388 true,
2389 true,
2390 true,
2391 true,
2392 s->notify_access != NOTIFY_NONE,
2393 false,
2394 &pid);
2395 if (r < 0)
34e9ba66
LP		 2396 goto fail;
2397
2398 service_set_main_pid(s, pid);
2399
2400 return;
2401
2402fail:
1124fe6f 2403 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
f42806df 2404 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
34e9ba66
LP		 2405}
2406
4b939747
MO		 2407static int service_start_limit_test(Service *s) {
2408 assert(s);
2409
2410 if (ratelimit_test(&s->start_limit))
2411 return 0;
2412
2413 switch (s->start_limit_action) {
2414
2415 case SERVICE_START_LIMIT_NONE:
2416 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2417 break;
2418
2419 case SERVICE_START_LIMIT_REBOOT: {
2420 DBusError error;
2421 int r;
2422
2423 dbus_error_init(&error);
2424
2425 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2426
2427 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2428 if (r < 0) {
2429 log_error("Failed to reboot: %s.", bus_error(&error, r));
2430 dbus_error_free(&error);
2431 }
2432
2433 break;
2434 }
2435
2436 case SERVICE_START_LIMIT_REBOOT_FORCE:
6bda96a0 2437 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
4b939747
MO		 2438 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2439 break;
2440
2441 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2442 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
0049f05a 2443 sync();
4b939747
MO		 2444 reboot(RB_AUTOBOOT);
2445 break;
2446
2447 default:
2448 log_error("start limit action=%i", s->start_limit_action);
2449 assert_not_reached("Unknown StartLimitAction.");
2450 }
2451
2452 return -ECANCELED;
2453}
2454
87f0e418
LP		 2455static int service_start(Unit *u) {
2456 Service *s = SERVICE(u);
4b939747 2457 int r;
5cb5a6ff
LP		 2458
2459 assert(s);
2460
034c6ed7
LP		 2461 /* We cannot fulfill this request right now, try again later
2462 * please! */
2463 if (s->state == SERVICE_STOP ||
2464 s->state == SERVICE_STOP_SIGTERM ||
2465 s->state == SERVICE_STOP_SIGKILL ||
2466 s->state == SERVICE_STOP_POST ||
2467 s->state == SERVICE_FINAL_SIGTERM ||
2468 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2469 return -EAGAIN;
2470
034c6ed7
LP		 2471 /* Already on it! */
2472 if (s->state == SERVICE_START_PRE ||
2473 s->state == SERVICE_START ||
2474 s->state == SERVICE_START_POST)
2475 return 0;
2476
2e9d6c12 2477 /* A service that will be restarted must be stopped first to
7f2cddae 2478 * trigger BindsTo and/or OnFailure dependencies. If a user
2e9d6c12 2479 * does not want to wait for the holdoff time to elapse, the
d4943dc7
LP		 2480 * service should be manually restarted, not started. We
2481 * simply return EAGAIN here, so that any start jobs stay
2482 * queued, and assume that the auto restart timer will
2483 * eventually trigger the restart. */
2484 if (s->state == SERVICE_AUTO_RESTART)
a8bb2e65 2485 return -EAGAIN;
2e9d6c12
DW		 2486
2487 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
5cb5a6ff 2488
1e2e8133 2489 /* Make sure we don't enter a busy loop of some kind. */
4b939747 2490 r = service_start_limit_test(s);
c2f34808 2491 if (r < 0) {
8d1b002a 2492 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
4b939747 2493 return r;
c2f34808 2494 }
1e2e8133 2495
f42806df
LP		 2496 s->result = SERVICE_SUCCESS;
2497 s->reload_result = SERVICE_SUCCESS;
034c6ed7 2498 s->main_pid_known = false;
6dfa5494 2499 s->main_pid_alien = false;
47342320 2500 s->forbid_restart = false;
034c6ed7
LP		 2501
2502 service_enter_start_pre(s);
2503 return 0;
5cb5a6ff
LP		 2504}
2505
87f0e418
LP		 2506static int service_stop(Unit *u) {
2507 Service *s = SERVICE(u);
5cb5a6ff
LP		 2508
2509 assert(s);
2510
f0c7b229 2511 /* Don't create restart jobs from here. */
47342320 2512 s->forbid_restart = true;
034c6ed7 2513
e537352b
LP		 2514 /* Already on it */
2515 if (s->state == SERVICE_STOP ||
2516 s->state == SERVICE_STOP_SIGTERM ||
2517 s->state == SERVICE_STOP_SIGKILL ||
2518 s->state == SERVICE_STOP_POST ||
2519 s->state == SERVICE_FINAL_SIGTERM ||
2520 s->state == SERVICE_FINAL_SIGKILL)
2521 return 0;
2522
f0c7b229 2523 /* A restart will be scheduled or is in progress. */
034c6ed7 2524 if (s->state == SERVICE_AUTO_RESTART) {
0c7f15b3 2525 service_set_state(s, SERVICE_DEAD);
034c6ed7
LP		 2526 return 0;
2527 }
2528
3f6c78dc
LP		 2529 /* If there's already something running we go directly into
2530 * kill mode. */
2531 if (s->state == SERVICE_START_PRE ||
2532 s->state == SERVICE_START ||
2533 s->state == SERVICE_START_POST ||
2534 s->state == SERVICE_RELOAD) {
f42806df 2535 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
3f6c78dc
LP		 2536 return 0;
2537 }
5cb5a6ff 2538
3f6c78dc
LP		 2539 assert(s->state == SERVICE_RUNNING ||
2540 s->state == SERVICE_EXITED);
3a762661 2541
f42806df 2542 service_enter_stop(s, SERVICE_SUCCESS);
5cb5a6ff
LP		 2543 return 0;
2544}
2545
87f0e418
LP		 2546static int service_reload(Unit *u) {
2547 Service *s = SERVICE(u);
034c6ed7
LP		 2548
2549 assert(s);
2550
80876c20 2551 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2552
2553 service_enter_reload(s);
5cb5a6ff
LP		 2554 return 0;
2555}
2556
87f0e418
LP		 2557static bool service_can_reload(Unit *u) {
2558 Service *s = SERVICE(u);
034c6ed7
LP		 2559
2560 assert(s);
2561
2562 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2563}
2564
a16e1123
LP		 2565static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2566 Service *s = SERVICE(u);
2567
2568 assert(u);
2569 assert(f);
2570 assert(fds);
2571
2572 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
f42806df
LP		 2573 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2574 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
a16e1123
LP		 2575
2576 if (s->control_pid > 0)
5925dd3c 2577 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2578
5925dd3c
LP		 2579 if (s->main_pid_known && s->main_pid > 0)
2580 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2581
2582 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2583
3a2776bc
LP		 2584 if (s->status_text)
2585 unit_serialize_item(u, f, "status-text", s->status_text);
2586
cfc4eb4c
LP		 2587 /* FIXME: There's a minor uncleanliness here: if there are
2588 * multiple commands attached here, we will start from the
2589 * first one again */
a16e1123 2590 if (s->control_command_id >= 0)
825636e5 2591 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2592
2593 if (s->socket_fd >= 0) {
2594 int copy;
2595
2596 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2597 return copy;
2598
2599 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2600 }
2601
ecdbca40
LP		 2602 if (s->main_exec_status.pid > 0) {
2603 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2604 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2605 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2606
799fd0fd 2607 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2608 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2609 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2610 }
2611 }
a6927d7f
MO		 2612 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2613 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
ecdbca40 2614
a16e1123
LP		 2615 return 0;
2616}
2617
2618static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2619 Service *s = SERVICE(u);
a16e1123
LP		 2620
2621 assert(u);
2622 assert(key);
2623 assert(value);
2624 assert(fds);
2625
2626 if (streq(key, "state")) {
2627 ServiceState state;
2628
2629 if ((state = service_state_from_string(value)) < 0)
2630 log_debug("Failed to parse state value %s", value);
2631 else
2632 s->deserialized_state = state;
f42806df
LP		 2633 } else if (streq(key, "result")) {
2634 ServiceResult f;
2635
2636 f = service_result_from_string(value);
2637 if (f < 0)
2638 log_debug("Failed to parse result value %s", value);
2639 else if (f != SERVICE_SUCCESS)
2640 s->result = f;
2641
2642 } else if (streq(key, "reload-result")) {
2643 ServiceResult f;
2644
2645 f = service_result_from_string(value);
2646 if (f < 0)
2647 log_debug("Failed to parse reload result value %s", value);
2648 else if (f != SERVICE_SUCCESS)
2649 s->reload_result = f;
a16e1123 2650
a16e1123 2651 } else if (streq(key, "control-pid")) {
5925dd3c 2652 pid_t pid;
a16e1123 2653
e364ad06 2654 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2655 log_debug("Failed to parse control-pid value %s", value);
2656 else
e55224ca 2657 s->control_pid = pid;
a16e1123 2658 } else if (streq(key, "main-pid")) {
5925dd3c 2659 pid_t pid;
a16e1123 2660
e364ad06 2661 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2662 log_debug("Failed to parse main-pid value %s", value);
2663 else
5925dd3c 2664 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2665 } else if (streq(key, "main-pid-known")) {
2666 int b;
2667
2668 if ((b = parse_boolean(value)) < 0)
2669 log_debug("Failed to parse main-pid-known value %s", value);
2670 else
2671 s->main_pid_known = b;
3a2776bc
LP		 2672 } else if (streq(key, "status-text")) {
2673 char *t;
2674
2675 if ((t = strdup(value))) {
2676 free(s->status_text);
2677 s->status_text = t;
2678 }
2679
a16e1123
LP		 2680 } else if (streq(key, "control-command")) {
2681 ServiceExecCommand id;
2682
2683 if ((id = service_exec_command_from_string(value)) < 0)
2684 log_debug("Failed to parse exec-command value %s", value);
2685 else {
2686 s->control_command_id = id;
2687 s->control_command = s->exec_command[id];
2688 }
2689 } else if (streq(key, "socket-fd")) {
2690 int fd;
2691
2692 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2693 log_debug("Failed to parse socket-fd value %s", value);
2694 else {
2695
2696 if (s->socket_fd >= 0)
2697 close_nointr_nofail(s->socket_fd);
2698 s->socket_fd = fdset_remove(fds, fd);
2699 }
ecdbca40
LP		 2700 } else if (streq(key, "main-exec-status-pid")) {
2701 pid_t pid;
2702
e364ad06 2703 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2704 log_debug("Failed to parse main-exec-status-pid value %s", value);
2705 else
2706 s->main_exec_status.pid = pid;
2707 } else if (streq(key, "main-exec-status-code")) {
2708 int i;
2709
e364ad06 2710 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2711 log_debug("Failed to parse main-exec-status-code value %s", value);
2712 else
2713 s->main_exec_status.code = i;
2714 } else if (streq(key, "main-exec-status-status")) {
2715 int i;
2716
e364ad06 2717 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2718 log_debug("Failed to parse main-exec-status-status value %s", value);
2719 else
2720 s->main_exec_status.status = i;
799fd0fd
LP		 2721 } else if (streq(key, "main-exec-status-start"))
2722 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2723 else if (streq(key, "main-exec-status-exit"))
2724 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
a6927d7f
MO		 2725 else if (streq(key, "watchdog-timestamp"))
2726 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
799fd0fd 2727 else
a16e1123
LP		 2728 log_debug("Unknown serialization key '%s'", key);
2729
2730 return 0;
2731}
2732
87f0e418 2733static UnitActiveState service_active_state(Unit *u) {
e056b01d
LP		 2734 const UnitActiveState *table;
2735
87f0e418 2736 assert(u);
5cb5a6ff 2737
e056b01d
LP		 2738 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2739
2740 return table[SERVICE(u)->state];
034c6ed7
LP		 2741}
2742
10a94420
LP		 2743static const char *service_sub_state_to_string(Unit *u) {
2744 assert(u);
2745
2746 return service_state_to_string(SERVICE(u)->state);
2747}
2748
701cc384
LP		 2749static bool service_check_gc(Unit *u) {
2750 Service *s = SERVICE(u);
2751
2752 assert(s);
2753
6d55002a
LP		 2754 /* Never clean up services that still have a process around,
2755 * even if the service is formally dead. */
2756 if (cgroup_good(s) > 0 ||
2757 main_pid_good(s) > 0 ||
2758 control_pid_good(s) > 0)
2759 return true;
2760
2761#ifdef HAVE_SYSV_COMPAT
1b64d026 2762 if (s->is_sysv)
6d55002a 2763 return true;
07459bb6 2764#endif
701cc384 2765
6d55002a
LP		 2766 return false;
2767}
2768
701cc384
LP		 2769static bool service_check_snapshot(Unit *u) {
2770 Service *s = SERVICE(u);
2771
2772 assert(s);
2773
2774 return !s->got_socket_fd;
2775}
2776
3a111838
MS		 2777static int service_retry_pid_file(Service *s) {
2778 int r;
2779
2780 assert(s->pid_file);
2781 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2782
2783 r = service_load_pid_file(s, false);
2784 if (r < 0)
2785 return r;
2786
2787 service_unwatch_pid_file(s);
2788
f42806df 2789 service_enter_running(s, SERVICE_SUCCESS);
3a111838
MS		 2790 return 0;
2791}
2792
2793static int service_watch_pid_file(Service *s) {
2794 int r;
2795
1124fe6f 2796 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
57020a3a 2797 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
3a111838
MS		 2798 if (r < 0)
2799 goto fail;
2800
2801 /* the pidfile might have appeared just before we set the watch */
2802 service_retry_pid_file(s);
2803
2804 return 0;
2805fail:
2806 log_error("Failed to set a watch for %s's PID file %s: %s",
1124fe6f 2807 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
3a111838
MS		 2808 service_unwatch_pid_file(s);
2809 return r;
2810}
2811
2812static int service_demand_pid_file(Service *s) {
2813 PathSpec *ps;
2814
2815 assert(s->pid_file);
2816 assert(!s->pid_file_pathspec);
2817
2818 ps = new0(PathSpec, 1);
2819 if (!ps)
2820 return -ENOMEM;
2821
2822 ps->path = strdup(s->pid_file);
2823 if (!ps->path) {
2824 free(ps);
2825 return -ENOMEM;
2826 }
2827
2828 path_kill_slashes(ps->path);
2829
2830 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2831 * keep their PID file open all the time. */
2832 ps->type = PATH_MODIFIED;
2833 ps->inotify_fd = -1;
2834
2835 s->pid_file_pathspec = ps;
2836
2837 return service_watch_pid_file(s);
2838}
2839
2840static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2841 Service *s = SERVICE(u);
2842
2843 assert(s);
2844 assert(fd >= 0);
2845 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2846 assert(s->pid_file_pathspec);
57020a3a 2847 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
3a111838 2848
ac155bb8 2849 log_debug("inotify event for %s", u->id);
3a111838 2850
57020a3a 2851 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
3a111838
MS		 2852 goto fail;
2853
2854 if (service_retry_pid_file(s) == 0)
2855 return;
2856
2857 if (service_watch_pid_file(s) < 0)
2858 goto fail;
2859
2860 return;
2861fail:
2862 service_unwatch_pid_file(s);
f42806df 2863 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 2864}
2865
87f0e418
LP		 2866static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2867 Service *s = SERVICE(u);
f42806df 2868 ServiceResult f;
5cb5a6ff
LP		 2869
2870 assert(s);
034c6ed7
LP		 2871 assert(pid >= 0);
2872
96342de6
LN		 2873 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2874 is_clean_exit_lsb(code, status, &s->success_status))
f42806df
LP		 2875 f = SERVICE_SUCCESS;
2876 else if (code == CLD_EXITED)
2877 f = SERVICE_FAILURE_EXIT_CODE;
2878 else if (code == CLD_KILLED)
2879 f = SERVICE_FAILURE_SIGNAL;
2880 else if (code == CLD_DUMPED)
2881 f = SERVICE_FAILURE_CORE_DUMP;
d06dacd0 2882 else
cfc4eb4c 2883 assert_not_reached("Unknown code");
034c6ed7
LP		 2884
2885 if (s->main_pid == pid) {
db01f8b3
MS		 2886 /* Forking services may occasionally move to a new PID.
2887 * As long as they update the PID file before exiting the old
2888 * PID, they're fine. */
5375410b 2889 if (service_load_pid_file(s, false) == 0)
db01f8b3 2890 return;
034c6ed7 2891
034c6ed7 2892 s->main_pid = 0;
6ea832a2 2893 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2894
867b3b7d
LP		 2895 /* If this is not a forking service than the main
2896 * process got started and hence we copy the exit
2897 * status so that it is recorded both as main and as
2898 * control process exit status */
2899 if (s->main_command) {
2900 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2901
867b3b7d 2902 if (s->main_command->ignore)
f42806df 2903 f = SERVICE_SUCCESS;
034c6ed7
LP		 2904 }
2905
23635a85
ZJS		 2906 log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2907 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2908 u->id, sigchld_code_to_string(code), status,
2909 strna(code == CLD_EXITED
2910 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2911 : signal_to_string(status)),
2912 "UNIT=%s", u->id,
2913 "EXIT_CODE=%s", sigchld_code_to_string(code),
2914 "EXIT_STATUS=%i", status,
2915 NULL);
f42806df
LP		 2916
2917 if (f != SERVICE_SUCCESS)
2918 s->result = f;
034c6ed7 2919
867b3b7d
LP		 2920 if (s->main_command &&
2921 s->main_command->command_next &&
f42806df 2922 f == SERVICE_SUCCESS) {
034c6ed7 2923
34e9ba66
LP		 2924 /* There is another command to *
2925 * execute, so let's do that. */
034c6ed7 2926
ac155bb8 2927 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
f42806df 2928 service_run_next_main(s);
034c6ed7 2929
34e9ba66
LP		 2930 } else {
2931
2932 /* The service exited, so the service is officially
2933 * gone. */
867b3b7d 2934 s->main_command = NULL;
34e9ba66
LP		 2935
2936 switch (s->state) {
2937
2938 case SERVICE_START_POST:
2939 case SERVICE_RELOAD:
2940 case SERVICE_STOP:
2941 /* Need to wait until the operation is
2942 * done */
c4653a4d 2943 break;
7d55e835 2944
34e9ba66
LP		 2945 case SERVICE_START:
2946 if (s->type == SERVICE_ONESHOT) {
2947 /* This was our main goal, so let's go on */
f42806df 2948 if (f == SERVICE_SUCCESS)
34e9ba66
LP		 2949 service_enter_start_post(s);
2950 else
f42806df 2951 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
34e9ba66 2952 break;
34e9ba66 2953 }
034c6ed7 2954
bfba3256
LP		 2955 /* Fall through */
2956
34e9ba66 2957 case SERVICE_RUNNING:
f42806df 2958 service_enter_running(s, f);
34e9ba66 2959 break;
034c6ed7 2960
34e9ba66
LP		 2961 case SERVICE_STOP_SIGTERM:
2962 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2963
34e9ba66 2964 if (!control_pid_good(s))
f42806df 2965 service_enter_stop_post(s, f);
5cb5a6ff 2966
34e9ba66
LP		 2967 /* If there is still a control process, wait for that first */
2968 break;
2969
2970 default:
2971 assert_not_reached("Uh, main process died at wrong time.");
2972 }
034c6ed7 2973 }
5cb5a6ff 2974
034c6ed7 2975 } else if (s->control_pid == pid) {
034c6ed7 2976
34e9ba66
LP		 2977 s->control_pid = 0;
2978
b708e7ce 2979 if (s->control_command) {
6ea832a2 2980 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2981
b708e7ce 2982 if (s->control_command->ignore)
f42806df 2983 f = SERVICE_SUCCESS;
b708e7ce
LP		 2984 }
2985
f42806df 2986 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2987 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2988
2989 if (f != SERVICE_SUCCESS)
2990 s->result = f;
034c6ed7 2991
88f3e0c9
LP		 2992 /* Immediately get rid of the cgroup, so that the
2993 * kernel doesn't delay the cgroup empty messages for
2994 * the service cgroup any longer than necessary */
2995 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2996
34e9ba66
LP		 2997 if (s->control_command &&
2998 s->control_command->command_next &&
f42806df 2999 f == SERVICE_SUCCESS) {
034c6ed7
LP		 3000
3001 /* There is another command to *
3002 * execute, so let's do that. */
3003
ac155bb8 3004 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
f42806df 3005 service_run_next_control(s);
034c6ed7 3006
80876c20 3007 } else {
034c6ed7
LP		 3008 /* No further commands for this step, so let's
3009 * figure out what to do next */
3010
a16e1123
LP		 3011 s->control_command = NULL;
3012 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3013
ac155bb8 3014 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
bd982a8b 3015
034c6ed7
LP		 3016 switch (s->state) {
3017
3018 case SERVICE_START_PRE:
f42806df 3019 if (f == SERVICE_SUCCESS)
034c6ed7
LP		 3020 service_enter_start(s);
3021 else
f42806df 3022 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
034c6ed7
LP		 3023 break;
3024
3025 case SERVICE_START:
bfba3256
LP		 3026 if (s->type != SERVICE_FORKING)
3027 /* Maybe spurious event due to a reload that changed the type? */
3028 break;
034c6ed7 3029
f42806df
LP		 3030 if (f != SERVICE_SUCCESS) {
3031 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3a111838
MS		 3032 break;
3033 }
034c6ed7 3034
3a111838 3035 if (s->pid_file) {
f42806df
LP		 3036 bool has_start_post;
3037 int r;
3038
3a111838
MS		 3039 /* Let's try to load the pid file here if we can.
3040 * The PID file might actually be created by a START_POST
3041 * script. In that case don't worry if the loading fails. */
f42806df
LP		 3042
3043 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3044 r = service_load_pid_file(s, !has_start_post);
3a111838
MS		 3045 if (!has_start_post && r < 0) {
3046 r = service_demand_pid_file(s);
3047 if (r < 0 || !cgroup_good(s))
f42806df 3048 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3049 break;
3050 }
034c6ed7 3051 } else
3a111838 3052 service_search_main_pid(s);
034c6ed7 3053
3a111838 3054 service_enter_start_post(s);
034c6ed7
LP		 3055 break;
3056
3057 case SERVICE_START_POST:
f42806df
LP		 3058 if (f != SERVICE_SUCCESS) {
3059 service_enter_stop(s, f);
2096e009 3060 break;
034c6ed7
LP		 3061 }
3062
2096e009 3063 if (s->pid_file) {
f42806df
LP		 3064 int r;
3065
3066 r = service_load_pid_file(s, true);
2096e009
MS		 3067 if (r < 0) {
3068 r = service_demand_pid_file(s);
3069 if (r < 0 || !cgroup_good(s))
f42806df 3070 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2096e009
MS		 3071 break;
3072 }
3073 } else
3074 service_search_main_pid(s);
3075
f42806df 3076 service_enter_running(s, SERVICE_SUCCESS);
3185a36b 3077 break;
034c6ed7
LP		 3078
3079 case SERVICE_RELOAD:
f42806df 3080 if (f == SERVICE_SUCCESS) {
5375410b 3081 service_load_pid_file(s, true);
3185a36b
LP		 3082 service_search_main_pid(s);
3083 }
3084
f42806df
LP		 3085 s->reload_result = f;
3086 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 3087 break;
3088
3089 case SERVICE_STOP:
f42806df 3090 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
034c6ed7
LP		 3091 break;
3092
3093 case SERVICE_STOP_SIGTERM:
3094 case SERVICE_STOP_SIGKILL:
3095 if (main_pid_good(s) <= 0)
f42806df 3096 service_enter_stop_post(s, f);
034c6ed7
LP		 3097
3098 /* If there is still a service
3099 * process around, wait until
3100 * that one quit, too */
3101 break;
3102
3103 case SERVICE_STOP_POST:
3104 case SERVICE_FINAL_SIGTERM:
3105 case SERVICE_FINAL_SIGKILL:
f42806df 3106 service_enter_dead(s, f, true);
034c6ed7
LP		 3107 break;
3108
3109 default:
3110 assert_not_reached("Uh, control process died at wrong time.");
3111 }
3112 }
8c47c732 3113 }
c4e2ceae
LP		 3114
3115 /* Notify clients about changed exit status */
3116 unit_add_to_dbus_queue(u);
034c6ed7
LP		 3117}
3118
acbb0225 3119static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 3120 Service *s = SERVICE(u);
034c6ed7
LP		 3121
3122 assert(s);
3123 assert(elapsed == 1);
3124
bb242b7b
MO		 3125 if (w == &s->watchdog_watch) {
3126 service_handle_watchdog(s);
3127 return;
3128 }
3129
acbb0225 3130 assert(w == &s->timer_watch);
034c6ed7
LP		 3131
3132 switch (s->state) {
3133
3134 case SERVICE_START_PRE:
3135 case SERVICE_START:
ac155bb8 3136 log_warning("%s operation timed out. Terminating.", u->id);
f42806df 3137 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
80876c20
LP		 3138 break;
3139
034c6ed7 3140 case SERVICE_START_POST:
ac155bb8 3141 log_warning("%s operation timed out. Stopping.", u->id);
f42806df 3142 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3143 break;
3144
e2f3b44c 3145 case SERVICE_RELOAD:
ac155bb8 3146 log_warning("%s operation timed out. Stopping.", u->id);
f42806df
LP		 3147 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3148 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c
LP		 3149 break;
3150
034c6ed7 3151 case SERVICE_STOP:
ac155bb8 3152 log_warning("%s stopping timed out. Terminating.", u->id);
f42806df 3153 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3154 break;
3155
3156 case SERVICE_STOP_SIGTERM:
4819ff03 3157 if (s->kill_context.send_sigkill) {
ac155bb8 3158 log_warning("%s stopping timed out. Killing.", u->id);
f42806df 3159 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3160 } else {
ac155bb8 3161 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
f42806df 3162 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
ba035df2
LP		 3163 }
3164
034c6ed7
LP		 3165 break;
3166
3167 case SERVICE_STOP_SIGKILL:
35b8ca3a 3168 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 3169 * Must be something we cannot kill, so let's just be
3170 * weirded out and continue */
3171
ac155bb8 3172 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
f42806df 3173 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3174 break;
3175
3176 case SERVICE_STOP_POST:
ac155bb8 3177 log_warning("%s stopping timed out (2). Terminating.", u->id);
f42806df 3178 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3179 break;
3180
3181 case SERVICE_FINAL_SIGTERM:
4819ff03 3182 if (s->kill_context.send_sigkill) {
ac155bb8 3183 log_warning("%s stopping timed out (2). Killing.", u->id);
f42806df 3184 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3185 } else {
ac155bb8 3186 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
f42806df 3187 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
ba035df2
LP		 3188 }
3189
034c6ed7
LP		 3190 break;
3191
3192 case SERVICE_FINAL_SIGKILL:
ac155bb8 3193 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
f42806df 3194 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
034c6ed7
LP		 3195 break;
3196
3197 case SERVICE_AUTO_RESTART:
ac155bb8 3198 log_info("%s holdoff time over, scheduling restart.", u->id);
034c6ed7
LP		 3199 service_enter_restart(s);
3200 break;
3201
3202 default:
3203 assert_not_reached("Timeout at wrong time.");
3204 }
5cb5a6ff
LP		 3205}
3206
8e274523
LP		 3207static void service_cgroup_notify_event(Unit *u) {
3208 Service *s = SERVICE(u);
3209
3210 assert(u);
3211
ac155bb8 3212 log_debug("%s: cgroup is empty", u->id);
8e274523
LP		 3213
3214 switch (s->state) {
3215
3216 /* Waiting for SIGCHLD is usually more interesting,
3217 * because it includes return codes/signals. Which is
3218 * why we ignore the cgroup events for most cases,
3219 * except when we don't know pid which to expect the
3220 * SIGCHLD for. */
3221
3a111838
MS		 3222 case SERVICE_START:
3223 case SERVICE_START_POST:
3224 /* If we were hoping for the daemon to write its PID file,
3225 * we can give up now. */
3226 if (s->pid_file_pathspec) {
1124fe6f 3227 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3a111838
MS		 3228 service_unwatch_pid_file(s);
3229 if (s->state == SERVICE_START)
f42806df 3230 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838 3231 else
f42806df 3232 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3233 }
3234 break;
3235
8e274523 3236 case SERVICE_RUNNING:
f42806df
LP		 3237 /* service_enter_running() will figure out what to do */
3238 service_enter_running(s, SERVICE_SUCCESS);
8e274523
LP		 3239 break;
3240
28708d8a
LP		 3241 case SERVICE_STOP_SIGTERM:
3242 case SERVICE_STOP_SIGKILL:
6dfa5494 3243
28708d8a 3244 if (main_pid_good(s) <= 0 && !control_pid_good(s))
f42806df 3245 service_enter_stop_post(s, SERVICE_SUCCESS);
28708d8a
LP		 3246
3247 break;
3248
7f97f0fe
LP		 3249 case SERVICE_FINAL_SIGTERM:
3250 case SERVICE_FINAL_SIGKILL:
3251 if (main_pid_good(s) <= 0 && !control_pid_good(s))
e201a038 3252 service_enter_dead(s, SERVICE_SUCCESS, true);
7f97f0fe
LP		 3253
3254 break;
3255
8e274523
LP		 3256 default:
3257 ;
3258 }
3259}
3260
c952c6ec 3261static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 3262 Service *s = SERVICE(u);
3263 const char *e;
3264
3265 assert(u);
3266
c952c6ec
LP		 3267 if (s->notify_access == NOTIFY_NONE) {
3268 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
ac155bb8 3269 u->id, (unsigned long) pid);
c952c6ec
LP		 3270 return;
3271 }
3272
3273 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3274 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
ac155bb8 3275 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
c952c6ec
LP		 3276 return;
3277 }
3278
ac155bb8 3279 log_debug("%s: Got message", u->id);
8c47c732
LP		 3280
3281 /* Interpret MAINPID= */
3282 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3283 (s->state == SERVICE_START ||
3284 s->state == SERVICE_START_POST ||
3285 s->state == SERVICE_RUNNING ||
3286 s->state == SERVICE_RELOAD)) {
8c47c732 3287
5925dd3c 3288 if (parse_pid(e + 8, &pid) < 0)
92abbefb 3289 log_warning("Failed to parse notification message %s", e);
8c47c732 3290 else {
ac155bb8 3291 log_debug("%s: got %s", u->id, e);
5925dd3c 3292 service_set_main_pid(s, pid);
8c47c732
LP		 3293 }
3294 }
3295
3296 /* Interpret READY= */
3297 if (s->type == SERVICE_NOTIFY &&
3298 s->state == SERVICE_START &&
3299 strv_find(tags, "READY=1")) {
ac155bb8 3300 log_debug("%s: got READY=1", u->id);
8c47c732
LP		 3301
3302 service_enter_start_post(s);
3303 }
3304
3305 /* Interpret STATUS= */
7f110ff9
LP		 3306 e = strv_find_prefix(tags, "STATUS=");
3307 if (e) {
8c47c732
LP		 3308 char *t;
3309
3a2776bc 3310 if (e[7]) {
7f110ff9
LP		 3311
3312 if (!utf8_is_valid(e+7)) {
3313 log_warning("Status message in notification is not UTF-8 clean.");
3314 return;
3315 }
3316
3317 t = strdup(e+7);
3318 if (!t) {
3a2776bc
LP		 3319 log_error("Failed to allocate string.");
3320 return;
3321 }
3322
ac155bb8 3323 log_debug("%s: got %s", u->id, e);
8c47c732 3324
3a2776bc
LP		 3325 free(s->status_text);
3326 s->status_text = t;
3327 } else {
3328 free(s->status_text);
3329 s->status_text = NULL;
3330 }
8c47c732 3331
8c47c732 3332 }
a6927d7f
MO		 3333 if (strv_find(tags, "WATCHDOG=1")) {
3334 log_debug("%s: got WATCHDOG=1", u->id);
3335 service_reset_watchdog(s);
3336 }
c4e2ceae
LP		 3337
3338 /* Notify clients about changed status or main pid */
3339 unit_add_to_dbus_queue(u);
8c47c732
LP		 3340}
3341
07459bb6 3342#ifdef HAVE_SYSV_COMPAT
de3910a3
FC		 3343
3344#ifdef TARGET_SUSE
3345static void sysv_facility_in_insserv_conf(Manager *mgr) {
3346 FILE *f=NULL;
3347 int r;
3348
3349 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3350 r = errno == ENOENT ? 0 : -errno;
3351 goto finish;
3352 }
3353
3354 while (!feof(f)) {
3355 char l[LINE_MAX], *t;
3356 char **parsed = NULL;
3357
3358 if (!fgets(l, sizeof(l), f)) {
3359 if (feof(f))
3360 break;
3361
3362 r = -errno;
3363 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3364 goto finish;
3365 }
3366
3367 t = strstrip(l);
3368 if (*t != '$' && *t != '<')
3369 continue;
3370
3371 parsed = strv_split(t,WHITESPACE);
3372 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3373 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3374 char *facility;
3375 Unit *u;
3376 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3377 continue;
ac155bb8 3378 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
de3910a3
FC		 3379 UnitDependency e;
3380 char *dep = NULL, *name, **j;
3381
3382 STRV_FOREACH (j, parsed+1) {
3383 if (*j[0]=='+') {
3384 e = UNIT_WANTS;
3385 name = *j+1;
3386 }
3387 else {
3388 e = UNIT_REQUIRES;
3389 name = *j;
3390 }
3391 if (sysv_translate_facility(name, NULL, &dep) < 0)
3392 continue;
3393
3394 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3395 free(dep);
3396 }
3397 }
3398 free(facility);
3399 }
3400 strv_free(parsed);
3401 }
3402finish:
3403 if (f)
3404 fclose(f);
3405
3406}
3407#endif
3408
2c4104f0 3409static int service_enumerate(Manager *m) {
2c4104f0
LP		 3410 char **p;
3411 unsigned i;
3412 DIR *d = NULL;
3413 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 3414 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3415 Unit *service;
3416 Iterator j;
2c4104f0
LP		 3417 int r;
3418
3419 assert(m);
3420
67445f4e 3421 if (m->running_as != SYSTEMD_SYSTEM)
b1bc08e5
LP		 3422 return 0;
3423
c68364b7
LP		 3424 zero(runlevel_services);
3425
84e3543e 3426 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 3427 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 3428 struct dirent *de;
3429
3430 free(path);
b7def684 3431 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
70132bd0 3432 if (!path) {
2c4104f0
LP		 3433 r = -ENOMEM;
3434 goto finish;
3435 }
3436
3437 if (d)
3438 closedir(d);
3439
3440 if (!(d = opendir(path))) {
3441 if (errno != ENOENT)
3442 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3443
3444 continue;
3445 }
3446
3447 while ((de = readdir(d))) {
db06e3b6 3448 int a, b;
2c4104f0
LP		 3449
3450 if (ignore_file(de->d_name))
3451 continue;
3452
3453 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3454 continue;
3455
3456 if (strlen(de->d_name) < 4)
3457 continue;
3458
db06e3b6
LP		 3459 a = undecchar(de->d_name[1]);
3460 b = undecchar(de->d_name[2]);
3461
3462 if (a < 0 || b < 0)
3463 continue;
3464
2c4104f0 3465 free(fpath);
b7def684 3466 fpath = strjoin(path, "/", de->d_name, NULL);
8ea913b2 3467 if (!fpath) {
2c4104f0
LP		 3468 r = -ENOMEM;
3469 goto finish;
3470 }
3471
3472 if (access(fpath, X_OK) < 0) {
3473
3474 if (errno != ENOENT)
3475 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3476
3477 continue;
3478 }
3479
3480 free(name);
b7ccee3c 3481 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3482 r = -ENOMEM;
3483 goto finish;
3484 }
3485
398ef8ba 3486 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3487 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3488 continue;
3489 }
2c4104f0 3490
c68364b7
LP		 3491 if (de->d_name[0] == 'S') {
3492
3cdebc21 3493 if (rcnd_table[i].type == RUNLEVEL_UP) {
ea87ca5a
LP		 3494 SERVICE(service)->sysv_start_priority_from_rcnd =
3495 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3496
c68364b7 3497 SERVICE(service)->sysv_enabled = true;
f73d93a4 3498 }
db06e3b6 3499
c68364b7
LP		 3500 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3501 goto finish;
2c4104f0 3502
c68364b7 3503 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3504 goto finish;
23a177ef 3505
fc5df99e 3506 } else if (de->d_name[0] == 'K' &&
3cdebc21 3507 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
6542952f 3508
c68364b7
LP		 3509 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3510 goto finish;
3511
3512 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3513 goto finish;
3514 }
3515 }
3516 }
3517
c68364b7
LP		 3518 /* Now we loaded all stubs and are aware of the lowest
3519 start-up priority for all services, not let's actually load
3520 the services, this will also tell us which services are
3521 actually native now */
3522 manager_dispatch_load_queue(m);
3523
3524 /* If this is a native service, rely on native ways to pull in
3525 * a service, don't pull it in via sysv rcN.d links. */
3526 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3527 SET_FOREACH(service, runlevel_services[i], j) {
3528 service = unit_follow_merge(service);
3529
ac155bb8 3530 if (service->fragment_path)
c68364b7
LP		 3531 continue;
3532
3533 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3534 goto finish;
3535 }
3536
3537 /* We honour K links only for halt/reboot. For the normal
3538 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3539 * by the core logic. Also, we don't really distinguish here
c68364b7 3540 * between the runlevels 0 and 6 and just add them to the
3cdebc21 3541 * special shutdown target. */
c68364b7
LP		 3542 SET_FOREACH(service, shutdown_services, j) {
3543 service = unit_follow_merge(service);
3544
ac155bb8 3545 if (service->fragment_path)
c68364b7
LP		 3546 continue;
3547
ead8e478 3548 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3549 goto finish;
3550 }
3551
2c4104f0
LP		 3552 r = 0;
3553
de3910a3 3554#ifdef TARGET_SUSE
3a111838 3555 sysv_facility_in_insserv_conf (m);
de3910a3
FC		 3556#endif
3557
2c4104f0
LP		 3558finish:
3559 free(path);
3560 free(fpath);
3561 free(name);
fbe9f3a9 3562
c68364b7
LP		 3563 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3564 set_free(runlevel_services[i]);
3565 set_free(shutdown_services);
3566
fbe9f3a9
LP		 3567 if (d)
3568 closedir(d);
2c4104f0
LP		 3569
3570 return r;
3571}
07459bb6 3572#endif
2c4104f0 3573
05e343b7
LP		 3574static void service_bus_name_owner_change(
3575 Unit *u,
3576 const char *name,
3577 const char *old_owner,
3578 const char *new_owner) {
3579
3580 Service *s = SERVICE(u);
3581
3582 assert(s);
3583 assert(name);
3584
3585 assert(streq(s->bus_name, name));
3586 assert(old_owner || new_owner);
3587
3588 if (old_owner && new_owner)
ac155bb8 3589 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
05e343b7 3590 else if (old_owner)
ac155bb8 3591 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
05e343b7 3592 else
ac155bb8 3593 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
05e343b7
LP		 3594
3595 s->bus_name_good = !!new_owner;
3596
3597 if (s->type == SERVICE_DBUS) {
3598
3599 /* service_enter_running() will figure out what to
3600 * do */
3601 if (s->state == SERVICE_RUNNING)
f42806df 3602 service_enter_running(s, SERVICE_SUCCESS);
05e343b7
LP		 3603 else if (s->state == SERVICE_START && new_owner)
3604 service_enter_start_post(s);
3605
3606 } else if (new_owner &&
3607 s->main_pid <= 0 &&
3608 (s->state == SERVICE_START ||
3609 s->state == SERVICE_START_POST ||
3610 s->state == SERVICE_RUNNING ||
3611 s->state == SERVICE_RELOAD)) {
3612
3613 /* Try to acquire PID from bus service */
3614 log_debug("Trying to acquire PID from D-Bus name...");
3615
ac155bb8 3616 bus_query_pid(u->manager, name);
05e343b7
LP		 3617 }
3618}
3619
3620static void service_bus_query_pid_done(
3621 Unit *u,
3622 const char *name,
3623 pid_t pid) {
3624
3625 Service *s = SERVICE(u);
3626
3627 assert(s);
3628 assert(name);
3629
ac155bb8 3630 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
05e343b7
LP		 3631
3632 if (s->main_pid <= 0 &&
3633 (s->state == SERVICE_START ||
3634 s->state == SERVICE_START_POST ||
3635 s->state == SERVICE_RUNNING ||
3636 s->state == SERVICE_RELOAD))
5925dd3c 3637 service_set_main_pid(s, pid);
05e343b7
LP		 3638}
3639
6cf6bbc2 3640int service_set_socket_fd(Service *s, int fd, Socket *sock) {
57020a3a 3641
4f2d528d
LP		 3642 assert(s);
3643 assert(fd >= 0);
3644
3645 /* This is called by the socket code when instantiating a new
3646 * service for a stream socket and the socket needs to be
3647 * configured. */
3648
1124fe6f 3649 if (UNIT(s)->load_state != UNIT_LOADED)
4f2d528d
LP		 3650 return -EINVAL;
3651
3652 if (s->socket_fd >= 0)
3653 return -EBUSY;
3654
3655 if (s->state != SERVICE_DEAD)
3656 return -EAGAIN;
3657
3658 s->socket_fd = fd;
701cc384 3659 s->got_socket_fd = true;
6cf6bbc2 3660
57020a3a
LP		 3661 unit_ref_set(&s->accept_socket, UNIT(sock));
3662
3663 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
4f2d528d
LP		 3664}
3665
fdf20a31 3666static void service_reset_failed(Unit *u) {
5632e374
LP		 3667 Service *s = SERVICE(u);
3668
3669 assert(s);
3670
fdf20a31 3671 if (s->state == SERVICE_FAILED)
5632e374
LP		 3672 service_set_state(s, SERVICE_DEAD);
3673
f42806df
LP		 3674 s->result = SERVICE_SUCCESS;
3675 s->reload_result = SERVICE_SUCCESS;
451b34cc
LP		 3676
3677 RATELIMIT_RESET(s->start_limit);
5632e374
LP		 3678}
3679
c74f17d9 3680static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
8a0867d6
LP		 3681 Service *s = SERVICE(u);
3682 int r = 0;
3683 Set *pid_set = NULL;
3684
3685 assert(s);
3686
3687 if (s->main_pid <= 0 && who == KILL_MAIN) {
3688 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3689 return -ESRCH;
8a0867d6
LP		 3690 }
3691
3692 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3693 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3694 return -ESRCH;
8a0867d6
LP		 3695 }
3696
3611581e
LP		 3697 if (who == KILL_CONTROL || who == KILL_ALL)
3698 if (s->control_pid > 0)
3699 if (kill(s->control_pid, signo) < 0)
3700 r = -errno;
8a0867d6 3701
3611581e
LP		 3702 if (who == KILL_MAIN || who == KILL_ALL)
3703 if (s->main_pid > 0)
3704 if (kill(s->main_pid, signo) < 0)
3705 r = -errno;
8a0867d6 3706
c74f17d9 3707 if (who == KILL_ALL) {
8a0867d6
LP		 3708 int q;
3709
c74f17d9
LP		 3710 pid_set = set_new(trivial_hash_func, trivial_compare_func);
3711 if (!pid_set)
8a0867d6
LP		 3712 return -ENOMEM;
3713
3714 /* Exclude the control/main pid from being killed via the cgroup */
c74f17d9
LP		 3715 if (s->control_pid > 0) {
3716 q = set_put(pid_set, LONG_TO_PTR(s->control_pid));
3717 if (q < 0) {
8a0867d6
LP		 3718 r = q;
3719 goto finish;
3720 }
c74f17d9 3721 }
8a0867d6 3722
c74f17d9
LP		 3723 if (s->main_pid > 0) {
3724 q = set_put(pid_set, LONG_TO_PTR(s->main_pid));
3725 if (q < 0) {
8a0867d6
LP		 3726 r = q;
3727 goto finish;
3728 }
c74f17d9
LP		 3729 }
3730
88f3e0c9 3731 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
c74f17d9
LP		 3732 if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3733 r = q;
8a0867d6
LP		 3734 }
3735
3736finish:
3737 if (pid_set)
3738 set_free(pid_set);
3739
3740 return r;
3741}
3742
94f04347
LP		 3743static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3744 [SERVICE_DEAD] = "dead",
3745 [SERVICE_START_PRE] = "start-pre",
3746 [SERVICE_START] = "start",
3747 [SERVICE_START_POST] = "start-post",
3748 [SERVICE_RUNNING] = "running",
80876c20 3749 [SERVICE_EXITED] = "exited",
94f04347
LP		 3750 [SERVICE_RELOAD] = "reload",
3751 [SERVICE_STOP] = "stop",
3752 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3753 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3754 [SERVICE_STOP_POST] = "stop-post",
3755 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3756 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3757 [SERVICE_FAILED] = "failed",
94f04347
LP		 3758 [SERVICE_AUTO_RESTART] = "auto-restart",
3759};
3760
3761DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3762
3763static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3764 [SERVICE_RESTART_NO] = "no",
3765 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3766 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3767 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3768 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3769};
3770
3771DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3772
3773static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3774 [SERVICE_SIMPLE] = "simple",
0d624a78 3775 [SERVICE_FORKING] = "forking",
34e9ba66 3776 [SERVICE_ONESHOT] = "oneshot",
8c47c732 3777 [SERVICE_DBUS] = "dbus",
f2b68789
LP		 3778 [SERVICE_NOTIFY] = "notify",
3779 [SERVICE_IDLE] = "idle"
94f04347
LP		 3780};
3781
3782DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3783
e537352b 3784static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3785 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3786 [SERVICE_EXEC_START] = "ExecStart",
3787 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3788 [SERVICE_EXEC_RELOAD] = "ExecReload",
3789 [SERVICE_EXEC_STOP] = "ExecStop",
3790 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3791};
3792
3793DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3794
c952c6ec
LP		 3795static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3796 [NOTIFY_NONE] = "none",
3797 [NOTIFY_MAIN] = "main",
3798 [NOTIFY_ALL] = "all"
3799};
3800
3801DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3802
f42806df
LP		 3803static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3804 [SERVICE_SUCCESS] = "success",
3805 [SERVICE_FAILURE_RESOURCES] = "resources",
3806 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3807 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3808 [SERVICE_FAILURE_SIGNAL] = "signal",
bb242b7b 3809 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
8d1b002a
LP		 3810 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3811 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
f42806df
LP		 3812};
3813
3814DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3815
4b939747
MO		 3816static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3817 [SERVICE_START_LIMIT_NONE] = "none",
3818 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3819 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3820 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3821};
3822DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3823
87f0e418 3824const UnitVTable service_vtable = {
7d17cfbc 3825 .object_size = sizeof(Service),
3ef63c31
LP		 3826 .exec_context_offset = offsetof(Service, exec_context),
3827
f975e971
LP		 3828 .sections =
3829 "Unit\0"
3830 "Service\0"
3831 "Install\0",
5cb5a6ff 3832
034c6ed7
LP		 3833 .init = service_init,
3834 .done = service_done,
a16e1123
LP		 3835 .load = service_load,
3836
3837 .coldplug = service_coldplug,
034c6ed7 3838
5cb5a6ff
LP		 3839 .dump = service_dump,
3840
3841 .start = service_start,
3842 .stop = service_stop,
3843 .reload = service_reload,
3844
034c6ed7
LP		 3845 .can_reload = service_can_reload,
3846
8a0867d6
LP		 3847 .kill = service_kill,
3848
a16e1123
LP		 3849 .serialize = service_serialize,
3850 .deserialize_item = service_deserialize_item,
3851
5cb5a6ff 3852 .active_state = service_active_state,
10a94420 3853 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3854
701cc384
LP		 3855 .check_gc = service_check_gc,
3856 .check_snapshot = service_check_snapshot,
3857
034c6ed7
LP		 3858 .sigchld_event = service_sigchld_event,
3859 .timer_event = service_timer_event,
3a111838 3860 .fd_event = service_fd_event,
2c4104f0 3861
fdf20a31 3862 .reset_failed = service_reset_failed,
5632e374 3863
8e274523 3864 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3865 .notify_message = service_notify_message,
8e274523 3866
05e343b7
LP		 3867 .bus_name_owner_change = service_bus_name_owner_change,
3868 .bus_query_pid_done = service_bus_query_pid_done,
3869
c4e2ceae 3870 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3871 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3872 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3873
07459bb6 3874#ifdef HAVE_SYSV_COMPAT
c6918296 3875 .enumerate = service_enumerate,
07459bb6 3876#endif
c6918296
MS		 3877 .status_message_formats = {
3878 .starting_stopping = {
3879 [0] = "Starting %s...",
3880 [1] = "Stopping %s...",
3881 },
3882 .finished_start_job = {
3883 [JOB_DONE] = "Started %s.",
3884 [JOB_FAILED] = "Failed to start %s.",
3885 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3886 [JOB_TIMEOUT] = "Timed out starting %s.",
3887 },
3888 .finished_stop_job = {
3889 [JOB_DONE] = "Stopped %s.",
3890 [JOB_FAILED] = "Stopped (with error) %s.",
3891 [JOB_TIMEOUT] = "Timed out stopping %s.",
3892 },
3893 },
5cb5a6ff 3894};
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