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man: clarify that StartLimitInterval= also applies to manual starts
[thirdparty/systemd.git] / src / core / service.c
CommitLineData
d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
5430f7f2
LP		 9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
a7334b09
LP		 11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5430f7f2 16 Lesser General Public License for more details.
a7334b09 17
5430f7f2 18 You should have received a copy of the GNU Lesser General Public License
a7334b09
LP		 19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
4b939747 26#include <sys/reboot.h>
5cb5a6ff 27
4b939747 28#include "manager.h"
87f0e418 29#include "unit.h"
5cb5a6ff
LP		 30#include "service.h"
31#include "load-fragment.h"
32#include "load-dropin.h"
034c6ed7 33#include "log.h"
2c4104f0 34#include "strv.h"
9e2f7c11 35#include "unit-name.h"
4139c1b2 36#include "dbus-service.h"
514f4ef5 37#include "special.h"
398ef8ba 38#include "bus-errors.h"
9a57c629 39#include "exit-status.h"
f6a6225e 40#include "def.h"
9eb977db 41#include "path-util.h"
f6a6225e 42#include "util.h"
7f110ff9 43#include "utf8.h"
034c6ed7 44
07459bb6 45#ifdef HAVE_SYSV_COMPAT
f34277d9 46
f6a6225e 47#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
f34277d9 48
09cd1ab1
LP		 49typedef enum RunlevelType {
50 RUNLEVEL_UP,
51 RUNLEVEL_DOWN,
fc5df99e 52 RUNLEVEL_SYSINIT
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
d4054675 67#ifdef TARGET_SUSE
cfe243e3 68 /* SUSE style boot.d */
fc5df99e 69 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 70#endif
fbe9f3a9 71
240fc26e 72#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
fbe9f3a9 73 /* Debian style rcS.d */
fc5df99e 74 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 75#endif
9d25f5ed
LP		 76
77 /* Standard SysV runlevels for shutdown */
78 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
79 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
80
81 /* Note that the order here matters, as we read the
82 directories in this order, and we want to make sure that
83 sysv_start_priority is known when we first load the
84 unit. And that value we only know from S links. Hence
85 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 86};
87
09cd1ab1 88#define RUNLEVELS_UP "12345"
fbe9f3a9 89/* #define RUNLEVELS_DOWN "06" */
e51db373 90#define RUNLEVELS_BOOT "bBsS"
07459bb6 91#endif
09cd1ab1 92
acbb0225 93static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 94 [SERVICE_DEAD] = UNIT_INACTIVE,
95 [SERVICE_START_PRE] = UNIT_ACTIVATING,
96 [SERVICE_START] = UNIT_ACTIVATING,
97 [SERVICE_START_POST] = UNIT_ACTIVATING,
98 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 99 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 100 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 101 [SERVICE_STOP] = UNIT_DEACTIVATING,
102 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
103 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
104 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
105 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
106 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 107 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 108 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 109};
5cb5a6ff 110
e056b01d
LP		 111/* For Type=idle we never want to delay any other jobs, hence we
112 * consider idle jobs active as soon as we start working on them */
113static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
114 [SERVICE_DEAD] = UNIT_INACTIVE,
115 [SERVICE_START_PRE] = UNIT_ACTIVE,
116 [SERVICE_START] = UNIT_ACTIVE,
117 [SERVICE_START_POST] = UNIT_ACTIVE,
118 [SERVICE_RUNNING] = UNIT_ACTIVE,
119 [SERVICE_EXITED] = UNIT_ACTIVE,
120 [SERVICE_RELOAD] = UNIT_RELOADING,
121 [SERVICE_STOP] = UNIT_DEACTIVATING,
122 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
123 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
124 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
125 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
126 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
127 [SERVICE_FAILED] = UNIT_FAILED,
128 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
129};
130
a16e1123
LP		 131static void service_init(Unit *u) {
132 Service *s = SERVICE(u);
c93ff2e9 133 int i;
a16e1123
LP		 134
135 assert(u);
ac155bb8 136 assert(u->load_state == UNIT_STUB);
a16e1123
LP		 137
138 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
139 s->restart_usec = DEFAULT_RESTART_USEC;
0b86feac 140 s->type = _SERVICE_TYPE_INVALID;
bb242b7b
MO		 141
142 s->watchdog_watch.type = WATCH_INVALID;
143
a16e1123 144 s->timer_watch.type = WATCH_INVALID;
07459bb6 145#ifdef HAVE_SYSV_COMPAT
a16e1123 146 s->sysv_start_priority = -1;
ea87ca5a 147 s->sysv_start_priority_from_rcnd = -1;
07459bb6 148#endif
a16e1123 149 s->socket_fd = -1;
3185a36b 150 s->guess_main_pid = true;
a16e1123
LP		 151
152 exec_context_init(&s->exec_context);
c93ff2e9
FC		 153 for (i = 0; i < RLIMIT_NLIMITS; i++)
154 if (UNIT(s)->manager->rlimit[i])
155 s->exec_context.rlimit[i] = newdup(struct rlimit, UNIT(s)->manager->rlimit[i], 1);
a16e1123 156
4b939747 157 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
a16e1123
LP		 158
159 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
160}
161
5e94833f
LP		 162static void service_unwatch_control_pid(Service *s) {
163 assert(s);
164
165 if (s->control_pid <= 0)
166 return;
167
168 unit_unwatch_pid(UNIT(s), s->control_pid);
169 s->control_pid = 0;
170}
171
172static void service_unwatch_main_pid(Service *s) {
173 assert(s);
174
175 if (s->main_pid <= 0)
176 return;
177
178 unit_unwatch_pid(UNIT(s), s->main_pid);
179 s->main_pid = 0;
180}
181
3e52541e
MS		 182static void service_unwatch_pid_file(Service *s) {
183 if (!s->pid_file_pathspec)
184 return;
185
186 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
187 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
188 path_spec_done(s->pid_file_pathspec);
189 free(s->pid_file_pathspec);
190 s->pid_file_pathspec = NULL;
191}
192
5925dd3c 193static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 194 pid_t ppid;
195
5925dd3c
LP		 196 assert(s);
197
198 if (pid <= 1)
199 return -EINVAL;
200
201 if (pid == getpid())
202 return -EINVAL;
203
6dfa5494
LP		 204 s->main_pid = pid;
205 s->main_pid_known = true;
206
207 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
e55224ca 208 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
1124fe6f 209 UNIT(s)->id, (unsigned long) pid);
e55224ca 210
6dfa5494
LP		 211 s->main_pid_alien = true;
212 } else
213 s->main_pid_alien = false;
5925dd3c 214
b58b4116
LP		 215 exec_status_start(&s->main_exec_status, pid);
216
5925dd3c
LP		 217 return 0;
218}
219
4f2d528d
LP		 220static void service_close_socket_fd(Service *s) {
221 assert(s);
222
223 if (s->socket_fd < 0)
224 return;
225
226 close_nointr_nofail(s->socket_fd);
227 s->socket_fd = -1;
228}
229
6cf6bbc2
LP		 230static void service_connection_unref(Service *s) {
231 assert(s);
232
57020a3a 233 if (!UNIT_DEREF(s->accept_socket))
6cf6bbc2
LP		 234 return;
235
57020a3a
LP		 236 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
237 unit_ref_unset(&s->accept_socket);
6cf6bbc2
LP		 238}
239
a6927d7f
MO		 240static void service_stop_watchdog(Service *s) {
241 assert(s);
242
bb242b7b 243 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
a6927d7f
MO		 244 s->watchdog_timestamp.realtime = 0;
245 s->watchdog_timestamp.monotonic = 0;
246}
247
bb242b7b
MO		 248static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
249
250static void service_handle_watchdog(Service *s) {
251 usec_t offset;
252 int r;
253
254 assert(s);
255
256 if (s->watchdog_usec == 0)
257 return;
258
259 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
260 if (offset >= s->watchdog_usec) {
261 log_error("%s watchdog timeout!", UNIT(s)->id);
262 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
263 return;
264 }
265
266 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
267 if (r < 0)
268 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
269}
270
a6927d7f
MO		 271static void service_reset_watchdog(Service *s) {
272 assert(s);
273
274 dual_timestamp_get(&s->watchdog_timestamp);
bb242b7b 275 service_handle_watchdog(s);
a6927d7f
MO		 276}
277
87f0e418
LP		 278static void service_done(Unit *u) {
279 Service *s = SERVICE(u);
44d8db9e
LP		 280
281 assert(s);
282
283 free(s->pid_file);
284 s->pid_file = NULL;
285
07459bb6 286#ifdef HAVE_SYSV_COMPAT
8309400a
LP		 287 free(s->sysv_runlevels);
288 s->sysv_runlevels = NULL;
07459bb6 289#endif
8309400a 290
8c47c732
LP		 291 free(s->status_text);
292 s->status_text = NULL;
293
44d8db9e 294 exec_context_done(&s->exec_context);
e537352b 295 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 296 s->control_command = NULL;
867b3b7d 297 s->main_command = NULL;
44d8db9e
LP		 298
299 /* This will leak a process, but at least no memory or any of
300 * our resources */
5e94833f
LP		 301 service_unwatch_main_pid(s);
302 service_unwatch_control_pid(s);
3e52541e 303 service_unwatch_pid_file(s);
44d8db9e 304
05e343b7 305 if (s->bus_name) {
ac155bb8 306 unit_unwatch_bus_name(u, s->bus_name);
05e343b7
LP		 307 free(s->bus_name);
308 s->bus_name = NULL;
309 }
310
4f2d528d 311 service_close_socket_fd(s);
6cf6bbc2 312 service_connection_unref(s);
4f2d528d 313
57020a3a 314 unit_ref_unset(&s->accept_socket);
f976f3f6 315
bb242b7b
MO		 316 service_stop_watchdog(s);
317
acbb0225 318 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 319}
320
07459bb6 321#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 322static char *sysv_translate_name(const char *name) {
323 char *r;
324
325 if (!(r = new(char, strlen(name) + sizeof(".service"))))
326 return NULL;
327
1bd8b818 328#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198
MB		 329 if (endswith(name, ".sh"))
330 /* Drop Debian-style .sh suffix */
331 strcpy(stpcpy(r, name) - 3, ".service");
332#endif
333#ifdef TARGET_SUSE
b7ccee3c
LP		 334 if (startswith(name, "boot."))
335 /* Drop SuSE-style boot. prefix */
336 strcpy(stpcpy(r, name + 5), ".service");
5b819198 337#endif
65530632 338#ifdef TARGET_FRUGALWARE
5b819198 339 if (startswith(name, "rc."))
65530632
MV		 340 /* Drop Frugalware-style rc. prefix */
341 strcpy(stpcpy(r, name + 3), ".service");
980900c1 342#endif
b7ccee3c
LP		 343 else
344 /* Normal init scripts */
345 strcpy(stpcpy(r, name), ".service");
346
347 return r;
348}
349
ee95669f 350static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 351
a7d3cc26
LP		 352 /* We silently ignore the $ prefix here. According to the LSB
353 * spec it simply indicates whether something is a
354 * standardized name or a distribution-specific one. Since we
355 * just follow what already exists and do not introduce new
356 * uses or names we don't care who introduced a new name. */
357
2c4104f0 358 static const char * const table[] = {
6464aa08 359 /* LSB defined facilities */
a7d3cc26 360 "local_fs", SPECIAL_LOCAL_FS_TARGET,
6fdae8a6
DM		 361#if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
362#else
8d0e38a2
LP		 363 /* Due to unfortunate name selection in Mandriva,
364 * $network is provided by network-up which is ordered
365 * after network which actually starts interfaces.
366 * To break the loop, just ignore it */
a7d3cc26 367 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 368#endif
a7d3cc26
LP		 369 "named", SPECIAL_NSS_LOOKUP_TARGET,
370 "portmap", SPECIAL_RPCBIND_TARGET,
371 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
372 "syslog", SPECIAL_SYSLOG_TARGET,
4466194c 373 "time", SPECIAL_TIME_SYNC_TARGET,
6464aa08 374
0b603b4e
KS		 375 /* common extensions */
376 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
377 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
378 "null", NULL,
379
1bd8b818 380#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
a7d3cc26 381 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 382#endif
3177a49c
LP		 383
384#ifdef TARGET_FEDORA
a7d3cc26
LP		 385 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
386 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
387 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 388#endif
a7d3cc26 389
0b603b4e
KS		 390#ifdef TARGET_SUSE
391 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
392#endif
2c4104f0
LP		 393 };
394
395 unsigned i;
396 char *r;
ee95669f 397 const char *n;
2c4104f0 398
ee95669f
LP		 399 assert(name);
400 assert(_r);
a7d3cc26 401
ee95669f 402 n = *name == '$' ? name + 1 : name;
a7d3cc26 403
ee95669f 404 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 405
ee95669f
LP		 406 if (!streq(table[i], n))
407 continue;
2c4104f0 408
ee95669f
LP		 409 if (!table[i+1])
410 return 0;
411
412 if (!(r = strdup(table[i+1])))
413 return -ENOMEM;
414
415 goto finish;
416 }
2c4104f0 417
a7d3cc26 418 /* If we don't know this name, fallback heuristics to figure
0003d1ab 419 * out whether something is a target or a service alias. */
a7d3cc26 420
e83c7c0b
LP		 421 if (*name == '$') {
422 if (!unit_prefix_is_valid(n))
423 return -EINVAL;
424
ee95669f
LP		 425 /* Facilities starting with $ are most likely targets */
426 r = unit_name_build(n, NULL, ".target");
e83c7c0b 427 } else if (filename && streq(name, filename))
35b8ca3a 428 /* Names equaling the file name of the services are redundant */
ee95669f 429 return 0;
32159d3a 430 else
ee95669f
LP		 431 /* Everything else we assume to be normal service names */
432 r = sysv_translate_name(n);
2c4104f0 433
32159d3a 434 if (!r)
2c4104f0
LP		 435 return -ENOMEM;
436
437finish:
b4353094 438 *_r = r;
2c4104f0
LP		 439
440 return 1;
441}
442
56d748b4 443static int sysv_fix_order(Service *s) {
ac155bb8 444 Unit *other;
2c4104f0
LP		 445 int r;
446
447 assert(s);
448
449 if (s->sysv_start_priority < 0)
450 return 0;
451
23a177ef
LP		 452 /* For each pair of services where at least one lacks a LSB
453 * header, we use the start priority value to order things. */
2c4104f0 454
1124fe6f 455 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
2c4104f0
LP		 456 Service *t;
457 UnitDependency d;
eeaafddc 458 bool special_s, special_t;
2c4104f0 459
595ed347 460 t = SERVICE(other);
2c4104f0
LP		 461
462 if (s == t)
463 continue;
9f151f29 464
1124fe6f 465 if (UNIT(t)->load_state != UNIT_LOADED)
9f151f29 466 continue;
2c4104f0
LP		 467
468 if (t->sysv_start_priority < 0)
469 continue;
470
51a1a79d
LP		 471 /* If both units have modern headers we don't care
472 * about the priorities */
1124fe6f
MS		 473 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
474 (UNIT(t)->fragment_path || t->sysv_has_lsb))
23a177ef
LP		 475 continue;
476
eeaafddc
LP		 477 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
478 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
479
480 if (special_t && !special_s)
481 d = UNIT_AFTER;
482 else if (special_s && !special_t)
483 d = UNIT_BEFORE;
484 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 485 d = UNIT_AFTER;
486 else if (t->sysv_start_priority > s->sysv_start_priority)
487 d = UNIT_BEFORE;
488 else
489 continue;
490
491 /* FIXME: Maybe we should compare the name here lexicographically? */
492
da19d5c1 493 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 494 return r;
495 }
496
497 return 0;
498}
499
500static ExecCommand *exec_command_new(const char *path, const char *arg1) {
501 ExecCommand *c;
502
503 if (!(c = new0(ExecCommand, 1)))
504 return NULL;
505
506 if (!(c->path = strdup(path))) {
507 free(c);
508 return NULL;
509 }
510
511 if (!(c->argv = strv_new(path, arg1, NULL))) {
512 free(c->path);
513 free(c);
514 return NULL;
515 }
516
517 return c;
518}
519
520static int sysv_exec_commands(Service *s) {
521 ExecCommand *c;
522
523 assert(s);
1b64d026
LP		 524 assert(s->is_sysv);
525 assert(UNIT(s)->source_path);
2c4104f0 526
1b64d026
LP		 527 c = exec_command_new(UNIT(s)->source_path, "start");
528 if (!c)
2c4104f0
LP		 529 return -ENOMEM;
530 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
531
1b64d026
LP		 532 c = exec_command_new(UNIT(s)->source_path, "stop");
533 if (!c)
2c4104f0
LP		 534 return -ENOMEM;
535 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
536
1b64d026
LP		 537 c = exec_command_new(UNIT(s)->source_path, "reload");
538 if (!c)
2c4104f0
LP		 539 return -ENOMEM;
540 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
541
542 return 0;
543}
544
e537352b 545static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 546 FILE *f;
547 Unit *u;
548 unsigned line = 0;
549 int r;
550 enum {
551 NORMAL,
552 DESCRIPTION,
553 LSB,
554 LSB_DESCRIPTION
555 } state = NORMAL;
0b5d26f9 556 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
5f4b19f4 557 struct stat st;
23a177ef
LP		 558
559 assert(s);
560 assert(path);
2c4104f0
LP		 561
562 u = UNIT(s);
563
1b64d026
LP		 564 f = fopen(path, "re");
565 if (!f) {
2c4104f0
LP		 566 r = errno == ENOENT ? 0 : -errno;
567 goto finish;
568 }
569
5f4b19f4
LP		 570 zero(st);
571 if (fstat(fileno(f), &st) < 0) {
572 r = -errno;
573 goto finish;
574 }
575
1b64d026
LP		 576 free(u->source_path);
577 u->source_path = strdup(path);
578 if (!u->source_path) {
2c4104f0
LP		 579 r = -ENOMEM;
580 goto finish;
581 }
1b64d026 582 u->source_mtime = timespec_load(&st.st_mtim);
5f4b19f4
LP		 583
584 if (null_or_empty(&st)) {
ac155bb8 585 u->load_state = UNIT_MASKED;
5f4b19f4
LP		 586 r = 0;
587 goto finish;
588 }
589
1b64d026
LP		 590 s->is_sysv = true;
591
2c4104f0
LP		 592 while (!feof(f)) {
593 char l[LINE_MAX], *t;
594
595 if (!fgets(l, sizeof(l), f)) {
596 if (feof(f))
597 break;
598
599 r = -errno;
600 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
601 goto finish;
602 }
603
604 line++;
605
606 t = strstrip(l);
607 if (*t != '#')
608 continue;
609
610 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
611 state = LSB;
23a177ef 612 s->sysv_has_lsb = true;
2c4104f0
LP		 613 continue;
614 }
615
616 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
617 state = NORMAL;
618 continue;
619 }
620
621 t++;
622 t += strspn(t, WHITESPACE);
623
624 if (state == NORMAL) {
625
626 /* Try to parse Red Hat style chkconfig headers */
627
c2b35af6 628 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 629 int start_priority;
8309400a 630 char runlevels[16], *k;
2c4104f0
LP		 631
632 state = NORMAL;
633
8309400a
LP		 634 if (sscanf(t+10, "%15s %i %*i",
635 runlevels,
636 &start_priority) != 2) {
2c4104f0
LP		 637
638 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
639 continue;
640 }
641
fbe9f3a9
LP		 642 /* A start priority gathered from the
643 * symlink farms is preferred over the
644 * data from the LSB header. */
8309400a 645 if (start_priority < 0 || start_priority > 99)
2c4104f0 646 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
ea87ca5a 647 else
8309400a
LP		 648 s->sysv_start_priority = start_priority;
649
650 char_array_0(runlevels);
651 k = delete_chars(runlevels, WHITESPACE "-");
652
653 if (k[0]) {
654 char *d;
655
656 if (!(d = strdup(k))) {
657 r = -ENOMEM;
658 goto finish;
659 }
660
661 free(s->sysv_runlevels);
662 s->sysv_runlevels = d;
2c4104f0
LP		 663 }
664
0b5d26f9 665 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 666
667 size_t k = strlen(t);
668 char *d;
0b5d26f9 669 const char *j;
2c4104f0
LP		 670
671 if (t[k-1] == '\\') {
672 state = DESCRIPTION;
673 t[k-1] = 0;
674 }
675
0b5d26f9
LP		 676 if ((j = strstrip(t+12)) && *j) {
677 if (!(d = strdup(j))) {
678 r = -ENOMEM;
679 goto finish;
680 }
681 } else
682 d = NULL;
2c4104f0 683
0b5d26f9
LP		 684 free(chkconfig_description);
685 chkconfig_description = d;
2c4104f0 686
c2b35af6 687 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 688
689 char *fn;
690
691 state = NORMAL;
692
693 fn = strstrip(t+8);
694 if (!path_is_absolute(fn)) {
695 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
696 continue;
697 }
698
699 if (!(fn = strdup(fn))) {
700 r = -ENOMEM;
701 goto finish;
702 }
703
704 free(s->pid_file);
705 s->pid_file = fn;
706 }
707
708 } else if (state == DESCRIPTION) {
709
710 /* Try to parse Red Hat style description
711 * continuation */
712
713 size_t k = strlen(t);
0b5d26f9 714 char *j;
2c4104f0
LP		 715
716 if (t[k-1] == '\\')
717 t[k-1] = 0;
718 else
719 state = NORMAL;
720
0b5d26f9
LP		 721 if ((j = strstrip(t)) && *j) {
722 char *d = NULL;
723
724 if (chkconfig_description)
44d91056 725 d = join(chkconfig_description, " ", j, NULL);
0b5d26f9
LP		 726 else
727 d = strdup(j);
2c4104f0 728
0b5d26f9
LP		 729 if (!d) {
730 r = -ENOMEM;
731 goto finish;
732 }
733
734 free(chkconfig_description);
735 chkconfig_description = d;
736 }
2c4104f0
LP		 737
738 } else if (state == LSB || state == LSB_DESCRIPTION) {
739
c2b35af6 740 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 741 char *i, *w;
742 size_t z;
743
744 state = LSB;
745
f60f22df 746 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 747 char *n, *m;
748
749 if (!(n = strndup(w, z))) {
750 r = -ENOMEM;
751 goto finish;
752 }
753
9eb977db 754 r = sysv_translate_facility(n, path_get_file_name(path), &m);
2c4104f0
LP		 755 free(n);
756
757 if (r < 0)
758 goto finish;
759
760 if (r == 0)
761 continue;
762
bd77d0fc
LP		 763 if (unit_name_to_type(m) == UNIT_SERVICE)
764 r = unit_add_name(u, m);
9700edb4
LP		 765 else
766 /* NB: SysV targets
767 * which are provided
768 * by a service are
769 * pulled in by the
770 * services, as an
771 * indication that the
772 * generic service is
773 * now available. This
774 * is strictly
775 * one-way. The
776 * targets do NOT pull
777 * in the SysV
778 * services! */
779 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 780
2c4104f0 781 if (r < 0)
43a37549 782 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 783
784 free(m);
2c4104f0
LP		 785 }
786
c2b35af6
LP		 787 } else if (startswith_no_case(t, "Required-Start:") ||
788 startswith_no_case(t, "Should-Start:") ||
789 startswith_no_case(t, "X-Start-Before:") ||
790 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 791 char *i, *w;
792 size_t z;
793
794 state = LSB;
795
f60f22df 796 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 797 char *n, *m;
798
799 if (!(n = strndup(w, z))) {
800 r = -ENOMEM;
801 goto finish;
802 }
803
9eb977db 804 r = sysv_translate_facility(n, path_get_file_name(path), &m);
2c4104f0 805
e83c7c0b
LP		 806 if (r < 0) {
807 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
808 free(n);
809 continue;
810 }
811
812 free(n);
2c4104f0
LP		 813
814 if (r == 0)
815 continue;
816
c2b35af6 817 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 818
819 if (r < 0)
43a37549 820 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 821
822 free(m);
2c4104f0 823 }
c2b35af6 824 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 825 char *k, *d;
826
827 state = LSB;
828
829 k = delete_chars(t+14, WHITESPACE "-");
830
831 if (k[0] != 0) {
832 if (!(d = strdup(k))) {
833 r = -ENOMEM;
834 goto finish;
835 }
836
837 free(s->sysv_runlevels);
838 s->sysv_runlevels = d;
839 }
2c4104f0 840
0b5d26f9
LP		 841 } else if (startswith_no_case(t, "Description:")) {
842 char *d, *j;
ed4c1cc6 843
2c4104f0
LP		 844 state = LSB_DESCRIPTION;
845
0b5d26f9
LP		 846 if ((j = strstrip(t+12)) && *j) {
847 if (!(d = strdup(j))) {
848 r = -ENOMEM;
849 goto finish;
850 }
851 } else
852 d = NULL;
2c4104f0 853
0b5d26f9
LP		 854 free(long_description);
855 long_description = d;
2c4104f0 856
ed4c1cc6 857 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 858 char *d, *j;
2c4104f0 859
2c4104f0
LP		 860 state = LSB;
861
0b5d26f9
LP		 862 if ((j = strstrip(t+18)) && *j) {
863 if (!(d = strdup(j))) {
864 r = -ENOMEM;
865 goto finish;
866 }
867 } else
868 d = NULL;
2c4104f0 869
0b5d26f9
LP		 870 free(short_description);
871 short_description = d;
2c4104f0
LP		 872
873 } else if (state == LSB_DESCRIPTION) {
874
875 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 876 char *j;
2c4104f0 877
0b5d26f9
LP		 878 if ((j = strstrip(t)) && *j) {
879 char *d = NULL;
880
881 if (long_description)
44d91056 882 d = join(long_description, " ", t, NULL);
0b5d26f9
LP		 883 else
884 d = strdup(j);
885
886 if (!d) {
887 r = -ENOMEM;
888 goto finish;
889 }
890
891 free(long_description);
892 long_description = d;
2c4104f0
LP		 893 }
894
2c4104f0
LP		 895 } else
896 state = LSB;
897 }
898 }
899 }
900
2c4104f0
LP		 901 if ((r = sysv_exec_commands(s)) < 0)
902 goto finish;
e51db373
TFH		 903 if (s->sysv_runlevels &&
904 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
905 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
906 /* Service has both boot and "up" runlevels
907 configured. Kill the "up" ones. */
908 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
909 }
2c4104f0 910
a40eb732 911 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 912 /* If there a runlevels configured for this service
913 * but none of the standard ones, then we assume this
914 * is some special kind of service (which might be
915 * needed for early boot) and don't create any links
916 * to it. */
917
1124fe6f 918 UNIT(s)->default_dependencies = false;
09cd1ab1 919
09cd1ab1
LP		 920 /* Don't timeout special services during boot (like fsck) */
921 s->timeout_usec = 0;
f34277d9
LP		 922 } else
923 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 924
80876c20 925 /* Special setting for all SysV services */
1f48cf56 926 s->type = SERVICE_FORKING;
f8788303 927 s->remain_after_exit = !s->pid_file;
1835f23c 928 s->guess_main_pid = false;
525ee6f4 929 s->restart = SERVICE_RESTART_NO;
353e12c2 930 s->exec_context.ignore_sigpipe = false;
cd25cce9 931 s->exec_context.kill_mode = KILL_PROCESS;
80876c20 932
0b5d26f9
LP		 933 /* We use the long description only if
934 * no short description is set. */
935
936 if (short_description)
937 description = short_description;
938 else if (chkconfig_description)
939 description = chkconfig_description;
940 else if (long_description)
941 description = long_description;
942 else
943 description = NULL;
944
945 if (description) {
946 char *d;
947
e527618d 948 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 949 r = -ENOMEM;
950 goto finish;
951 }
952
ac155bb8 953 u->description = d;
0b5d26f9
LP		 954 }
955
ea87ca5a
LP		 956 /* The priority that has been set in /etc/rcN.d/ hierarchies
957 * takes precedence over what is stored as default in the LSB
958 * header */
959 if (s->sysv_start_priority_from_rcnd >= 0)
960 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
961
ac155bb8 962 u->load_state = UNIT_LOADED;
23a177ef 963 r = 0;
2c4104f0
LP		 964
965finish:
966
967 if (f)
968 fclose(f);
969
0b5d26f9
LP		 970 free(short_description);
971 free(long_description);
972 free(chkconfig_description);
973
2c4104f0
LP		 974 return r;
975}
976
e537352b 977static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 978 char **p;
979
980 assert(s);
981 assert(name);
982
e1992852 983 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 984 * prefixes/suffixes. */
1bd8b818 985#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198 986 if (endswith(name, ".sh.service"))
d017c6ca 987 return -ENOENT;
5b819198
MB		 988#endif
989
990#ifdef TARGET_SUSE
991 if (startswith(name, "boot."))
992 return -ENOENT;
993#endif
994
995#ifdef TARGET_FRUGALWARE
996 if (startswith(name, "rc."))
997 return -ENOENT;
998#endif
d017c6ca 999
1124fe6f 1000 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 1001 char *path;
1002 int r;
1003
44d91056
LP		 1004 path = join(*p, "/", name, NULL);
1005 if (!path)
2c4104f0
LP		 1006 return -ENOMEM;
1007
1008 assert(endswith(path, ".service"));
1009 path[strlen(path)-8] = 0;
1010
e537352b 1011 r = service_load_sysv_path(s, path);
fbe9f3a9 1012
1bd8b818 1013#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1124fe6f 1014 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 1015 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 1016 strcat(path, ".sh");
1017 r = service_load_sysv_path(s, path);
1018 }
e1992852 1019#endif
2c4104f0
LP		 1020 free(path);
1021
e1992852 1022#ifdef TARGET_SUSE
1124fe6f 1023 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 1024 /* Try SUSE style boot.* init scripts */
fbe9f3a9 1025
44d91056
LP		 1026 path = join(*p, "/boot.", name, NULL);
1027 if (!path)
fbe9f3a9
LP		 1028 return -ENOMEM;
1029
e1992852 1030 /* Drop .service suffix */
fbe9f3a9
LP		 1031 path[strlen(path)-8] = 0;
1032 r = service_load_sysv_path(s, path);
1033 free(path);
1034 }
e1992852 1035#endif
fbe9f3a9 1036
e1992852 1037#ifdef TARGET_FRUGALWARE
1124fe6f 1038 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
e1992852 1039 /* Try Frugalware style rc.* init scripts */
65530632 1040
44d91056
LP		 1041 path = join(*p, "/rc.", name, NULL);
1042 if (!path)
65530632
MV		 1043 return -ENOMEM;
1044
e1992852 1045 /* Drop .service suffix */
65530632
MV		 1046 path[strlen(path)-8] = 0;
1047 r = service_load_sysv_path(s, path);
1048 free(path);
1049 }
e1992852 1050#endif
65530632 1051
23a177ef 1052 if (r < 0)
2c4104f0 1053 return r;
23a177ef 1054
1124fe6f 1055 if ((UNIT(s)->load_state != UNIT_STUB))
23a177ef 1056 break;
2c4104f0
LP		 1057 }
1058
1059 return 0;
1060}
1061
e537352b 1062static int service_load_sysv(Service *s) {
2c4104f0
LP		 1063 const char *t;
1064 Iterator i;
1065 int r;
1066
5cb5a6ff
LP		 1067 assert(s);
1068
1069 /* Load service data from SysV init scripts, preferably with
1070 * LSB headers ... */
1071
1124fe6f 1072 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 1073 return 0;
1074
1124fe6f 1075 if ((t = UNIT(s)->id))
e537352b 1076 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 1077 return r;
1078
1124fe6f
MS		 1079 if (UNIT(s)->load_state == UNIT_STUB)
1080 SET_FOREACH(t, UNIT(s)->names, i) {
1081 if (t == UNIT(s)->id)
e537352b
LP		 1082 continue;
1083
e364ad06 1084 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 1085 return r;
1086
1124fe6f 1087 if (UNIT(s)->load_state != UNIT_STUB)
23a177ef
LP		 1088 break;
1089 }
2c4104f0
LP		 1090
1091 return 0;
5cb5a6ff 1092}
07459bb6 1093#endif
5cb5a6ff 1094
9fff8a1f 1095static int fsck_fix_order(Service *s) {
ac155bb8 1096 Unit *other;
9fff8a1f
LP		 1097 int r;
1098
1099 assert(s);
1100
1101 if (s->fsck_passno <= 0)
1102 return 0;
1103
1104 /* For each pair of services where both have an fsck priority
1105 * we order things based on it. */
1106
1124fe6f 1107 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1108 Service *t;
1109 UnitDependency d;
1110
595ed347 1111 t = SERVICE(other);
9fff8a1f
LP		 1112
1113 if (s == t)
1114 continue;
1115
1124fe6f 1116 if (UNIT(t)->load_state != UNIT_LOADED)
9fff8a1f
LP		 1117 continue;
1118
1119 if (t->fsck_passno <= 0)
1120 continue;
1121
1122 if (t->fsck_passno < s->fsck_passno)
1123 d = UNIT_AFTER;
1124 else if (t->fsck_passno > s->fsck_passno)
1125 d = UNIT_BEFORE;
1126 else
1127 continue;
1128
da19d5c1 1129 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1130 return r;
1131 }
1132
1133 return 0;
1134}
1135
243b1432
LP		 1136static int service_verify(Service *s) {
1137 assert(s);
1138
1124fe6f 1139 if (UNIT(s)->load_state != UNIT_LOADED)
243b1432
LP		 1140 return 0;
1141
1142 if (!s->exec_command[SERVICE_EXEC_START]) {
1124fe6f 1143 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
243b1432
LP		 1144 return -EINVAL;
1145 }
1146
34e9ba66
LP		 1147 if (s->type != SERVICE_ONESHOT &&
1148 s->exec_command[SERVICE_EXEC_START]->command_next) {
1124fe6f 1149 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
6cf6bbc2
LP		 1150 return -EINVAL;
1151 }
1152
c06b7a15
LP		 1153 if (s->type == SERVICE_ONESHOT &&
1154 s->exec_command[SERVICE_EXEC_RELOAD]) {
1124fe6f 1155 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
c06b7a15
LP		 1156 return -EINVAL;
1157 }
1158
05e343b7 1159 if (s->type == SERVICE_DBUS && !s->bus_name) {
1124fe6f 1160 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
4d0e5dbd
LP		 1161 return -EINVAL;
1162 }
1163
7e2668c6
LP		 1164 if (s->bus_name && s->type != SERVICE_DBUS)
1165 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1166
2e22afe9 1167 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1124fe6f 1168 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
05e343b7
LP		 1169 return -EINVAL;
1170 }
1171
243b1432
LP		 1172 return 0;
1173}
1174
a40eb732
LP		 1175static int service_add_default_dependencies(Service *s) {
1176 int r;
1177
1178 assert(s);
1179
1180 /* Add a number of automatic dependencies useful for the
1181 * majority of services. */
1182
1183 /* First, pull in base system */
1124fe6f 1184 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
a40eb732
LP		 1185
1186 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1187 return r;
1188
1124fe6f 1189 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
a40eb732
LP		 1190
1191 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1192 return r;
1193 }
1194
1195 /* Second, activate normal shutdown */
ead8e478 1196 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1197}
1198
4dfc092a
LP		 1199static void service_fix_output(Service *s) {
1200 assert(s);
1201
1202 /* If nothing has been explicitly configured, patch default
1203 * output in. If input is socket/tty we avoid this however,
1204 * since in that case we want output to default to the same
1205 * place as we read input from. */
1206
1207 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1208 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1209 s->exec_context.std_input == EXEC_INPUT_NULL)
1124fe6f 1210 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
4dfc092a
LP		 1211
1212 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1213 s->exec_context.std_input == EXEC_INPUT_NULL)
1124fe6f 1214 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
4dfc092a
LP		 1215}
1216
e537352b
LP		 1217static int service_load(Unit *u) {
1218 int r;
1219 Service *s = SERVICE(u);
1220
1221 assert(s);
1e2e8133 1222
5cb5a6ff 1223 /* Load a .service file */
e537352b 1224 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1225 return r;
1226
07459bb6 1227#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1228 /* Load a classic init script as a fallback, if we couldn't find anything */
ac155bb8 1229 if (u->load_state == UNIT_STUB)
e537352b 1230 if ((r = service_load_sysv(s)) < 0)
23a177ef 1231 return r;
07459bb6 1232#endif
d46de8a1 1233
23a177ef 1234 /* Still nothing found? Then let's give up */
ac155bb8 1235 if (u->load_state == UNIT_STUB)
23a177ef 1236 return -ENOENT;
034c6ed7 1237
23a177ef
LP		 1238 /* We were able to load something, then let's add in the
1239 * dropin directories. */
1240 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1241 return r;
23a177ef
LP		 1242
1243 /* This is a new unit? Then let's add in some extras */
ac155bb8 1244 if (u->load_state == UNIT_LOADED) {
0b86feac
LP		 1245 if (s->type == _SERVICE_TYPE_INVALID)
1246 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1247
98709151
LN		 1248 /* Oneshot services have disabled timeout by default */
1249 if (s->type == SERVICE_ONESHOT && !s->timeout_defined)
1250 s->timeout_usec = 0;
1251
4e2b0f9b
LP		 1252 service_fix_output(s);
1253
23a177ef
LP		 1254 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1255 return r;
1256
d686d8a9 1257 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1258 return r;
1259
07459bb6 1260#ifdef HAVE_SYSV_COMPAT
56d748b4 1261 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1262 return r;
07459bb6 1263#endif
05e343b7 1264
9fff8a1f
LP		 1265 if ((r = fsck_fix_order(s)) < 0)
1266 return r;
1267
ee0dd802 1268 if (s->bus_name)
05e343b7 1269 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1270 return r;
c952c6ec
LP		 1271
1272 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1273 s->notify_access = NOTIFY_MAIN;
a40eb732 1274
02c4ef9c
LP		 1275 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1276 s->notify_access = NOTIFY_MAIN;
1277
a40eb732 1278 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1279 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1280 return r;
1281
1124fe6f 1282 if (UNIT(s)->default_dependencies)
a40eb732
LP		 1283 if ((r = service_add_default_dependencies(s)) < 0)
1284 return r;
8e274523
LP		 1285 }
1286
243b1432 1287 return service_verify(s);
034c6ed7
LP		 1288}
1289
87f0e418 1290static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1291
5cb5a6ff 1292 ServiceExecCommand c;
87f0e418 1293 Service *s = SERVICE(u);
47be870b
LP		 1294 const char *prefix2;
1295 char *p2;
5cb5a6ff
LP		 1296
1297 assert(s);
1298
47be870b
LP		 1299 p2 = strappend(prefix, "\t");
1300 prefix2 = p2 ? p2 : prefix;
44d8db9e 1301
5cb5a6ff 1302 fprintf(f,
81a2b7ce 1303 "%sService State: %s\n"
f42806df
LP		 1304 "%sResult: %s\n"
1305 "%sReload Result: %s\n"
81a2b7ce 1306 "%sPermissionsStartOnly: %s\n"
8e274523 1307 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1308 "%sRemainAfterExit: %s\n"
3185a36b 1309 "%sGuessMainPID: %s\n"
c952c6ec 1310 "%sType: %s\n"
2cf3143a 1311 "%sRestart: %s\n"
c952c6ec 1312 "%sNotifyAccess: %s\n",
81a2b7ce 1313 prefix, service_state_to_string(s->state),
f42806df
LP		 1314 prefix, service_result_to_string(s->result),
1315 prefix, service_result_to_string(s->reload_result),
81a2b7ce 1316 prefix, yes_no(s->permissions_start_only),
8e274523 1317 prefix, yes_no(s->root_directory_start_only),
02ee865a 1318 prefix, yes_no(s->remain_after_exit),
3185a36b 1319 prefix, yes_no(s->guess_main_pid),
c952c6ec 1320 prefix, service_type_to_string(s->type),
2cf3143a 1321 prefix, service_restart_to_string(s->restart),
c952c6ec 1322 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1323
70123e68
LP		 1324 if (s->control_pid > 0)
1325 fprintf(f,
bb00e604
LP		 1326 "%sControl PID: %lu\n",
1327 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1328
1329 if (s->main_pid > 0)
1330 fprintf(f,
6dfa5494
LP		 1331 "%sMain PID: %lu\n"
1332 "%sMain PID Known: %s\n"
1333 "%sMain PID Alien: %s\n",
1334 prefix, (unsigned long) s->main_pid,
1335 prefix, yes_no(s->main_pid_known),
1336 prefix, yes_no(s->main_pid_alien));
70123e68 1337
034c6ed7
LP		 1338 if (s->pid_file)
1339 fprintf(f,
1340 "%sPIDFile: %s\n",
1341 prefix, s->pid_file);
1342
05e343b7
LP		 1343 if (s->bus_name)
1344 fprintf(f,
1345 "%sBusName: %s\n"
1346 "%sBus Name Good: %s\n",
1347 prefix, s->bus_name,
1348 prefix, yes_no(s->bus_name_good));
1349
5cb5a6ff
LP		 1350 exec_context_dump(&s->exec_context, f, prefix);
1351
e537352b 1352 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1353
44d8db9e
LP		 1354 if (!s->exec_command[c])
1355 continue;
1356
40d50879 1357 fprintf(f, "%s-> %s:\n",
94f04347 1358 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1359
1360 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1361 }
44d8db9e 1362
07459bb6 1363#ifdef HAVE_SYSV_COMPAT
1b64d026 1364 if (s->is_sysv)
2c4104f0 1365 fprintf(f,
9fff8a1f
LP		 1366 "%sSysV Init Script has LSB Header: %s\n"
1367 "%sSysVEnabled: %s\n",
9fff8a1f
LP		 1368 prefix, yes_no(s->sysv_has_lsb),
1369 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1370
1371 if (s->sysv_start_priority >= 0)
1372 fprintf(f,
9fff8a1f
LP		 1373 "%sSysVStartPriority: %i\n",
1374 prefix, s->sysv_start_priority);
2c4104f0 1375
8309400a
LP		 1376 if (s->sysv_runlevels)
1377 fprintf(f, "%sSysVRunLevels: %s\n",
1378 prefix, s->sysv_runlevels);
07459bb6 1379#endif
23a177ef 1380
9fff8a1f
LP		 1381 if (s->fsck_passno > 0)
1382 fprintf(f,
1383 "%sFsckPassNo: %i\n",
1384 prefix, s->fsck_passno);
1385
8c47c732
LP		 1386 if (s->status_text)
1387 fprintf(f, "%sStatus Text: %s\n",
1388 prefix, s->status_text);
1389
47be870b 1390 free(p2);
5cb5a6ff
LP		 1391}
1392
c5419d42 1393static int service_load_pid_file(Service *s, bool may_warn) {
034c6ed7 1394 char *k;
034c6ed7 1395 int r;
5925dd3c 1396 pid_t pid;
034c6ed7
LP		 1397
1398 assert(s);
1399
034c6ed7 1400 if (!s->pid_file)
13230d5d 1401 return -ENOENT;
034c6ed7 1402
5375410b 1403 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
c5419d42 1404 if (may_warn)
3a111838
MS		 1405 log_info("PID file %s not readable (yet?) after %s.",
1406 s->pid_file, service_state_to_string(s->state));
034c6ed7 1407 return r;
5375410b 1408 }
034c6ed7 1409
5925dd3c
LP		 1410 r = parse_pid(k, &pid);
1411 free(k);
034c6ed7 1412
5925dd3c
LP		 1413 if (r < 0)
1414 return r;
406eaf93 1415
5925dd3c 1416 if (kill(pid, 0) < 0 && errno != EPERM) {
c5419d42 1417 if (may_warn)
3a111838
MS		 1418 log_info("PID %lu read from file %s does not exist.",
1419 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1420 return -ESRCH;
1421 }
1422
db01f8b3
MS		 1423 if (s->main_pid_known) {
1424 if (pid == s->main_pid)
1425 return 0;
1426
1427 log_debug("Main PID changing: %lu -> %lu",
1428 (unsigned long) s->main_pid, (unsigned long) pid);
1429 service_unwatch_main_pid(s);
1430 s->main_pid_known = false;
3a111838
MS		 1431 } else
1432 log_debug("Main PID loaded: %lu", (unsigned long) pid);
db01f8b3 1433
5925dd3c 1434 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1435 return r;
1436
5925dd3c
LP		 1437 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1438 /* FIXME: we need to do something here */
1439 return r;
034c6ed7
LP		 1440
1441 return 0;
1442}
1443
4fbf50b3
LP		 1444static int service_search_main_pid(Service *s) {
1445 pid_t pid;
1446 int r;
1447
1448 assert(s);
1449
3185a36b
LP		 1450 /* If we know it anyway, don't ever fallback to unreliable
1451 * heuristics */
4fbf50b3
LP		 1452 if (s->main_pid_known)
1453 return 0;
1454
3185a36b
LP		 1455 if (!s->guess_main_pid)
1456 return 0;
1457
4fbf50b3
LP		 1458 assert(s->main_pid <= 0);
1459
1124fe6f 1460 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
4fbf50b3
LP		 1461 return -ENOENT;
1462
3a111838 1463 log_debug("Main PID guessed: %lu", (unsigned long) pid);
4fbf50b3
LP		 1464 if ((r = service_set_main_pid(s, pid)) < 0)
1465 return r;
1466
1467 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1468 /* FIXME: we need to do something here */
1469 return r;
1470
1471 return 0;
1472}
1473
6bda96a0 1474static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
ceee3d82 1475 Iterator i;
57020a3a 1476 Unit *u;
3e33402a
LP		 1477
1478 assert(s);
1479
f976f3f6
LP		 1480 /* Notifies all our sockets when we die */
1481
6cf6bbc2 1482 if (s->socket_fd >= 0)
57020a3a 1483 return;
3e33402a 1484
1124fe6f 1485 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
ac155bb8 1486 if (u->type == UNIT_SOCKET)
6bda96a0 1487 socket_notify_service_dead(SOCKET(u), failed_permanent);
3e33402a 1488
57020a3a 1489 return;
ceee3d82
LP		 1490}
1491
034c6ed7
LP		 1492static void service_set_state(Service *s, ServiceState state) {
1493 ServiceState old_state;
e056b01d 1494 const UnitActiveState *table;
5cb5a6ff
LP		 1495 assert(s);
1496
e056b01d
LP		 1497 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1498
034c6ed7 1499 old_state = s->state;
5cb5a6ff 1500 s->state = state;
034c6ed7 1501
3a111838
MS		 1502 service_unwatch_pid_file(s);
1503
034c6ed7
LP		 1504 if (state != SERVICE_START_PRE &&
1505 state != SERVICE_START &&
1506 state != SERVICE_START_POST &&
1507 state != SERVICE_RELOAD &&
1508 state != SERVICE_STOP &&
1509 state != SERVICE_STOP_SIGTERM &&
1510 state != SERVICE_STOP_SIGKILL &&
1511 state != SERVICE_STOP_POST &&
1512 state != SERVICE_FINAL_SIGTERM &&
1513 state != SERVICE_FINAL_SIGKILL &&
1514 state != SERVICE_AUTO_RESTART)
acbb0225 1515 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1516
7d55e835
LP		 1517 if (state != SERVICE_START &&
1518 state != SERVICE_START_POST &&
034c6ed7
LP		 1519 state != SERVICE_RUNNING &&
1520 state != SERVICE_RELOAD &&
1521 state != SERVICE_STOP &&
1522 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1523 state != SERVICE_STOP_SIGKILL) {
5e94833f 1524 service_unwatch_main_pid(s);
867b3b7d
LP		 1525 s->main_command = NULL;
1526 }
034c6ed7
LP		 1527
1528 if (state != SERVICE_START_PRE &&
1529 state != SERVICE_START &&
1530 state != SERVICE_START_POST &&
1531 state != SERVICE_RELOAD &&
1532 state != SERVICE_STOP &&
1533 state != SERVICE_STOP_SIGTERM &&
1534 state != SERVICE_STOP_SIGKILL &&
1535 state != SERVICE_STOP_POST &&
1536 state != SERVICE_FINAL_SIGTERM &&
e537352b 1537 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1538 service_unwatch_control_pid(s);
034c6ed7 1539 s->control_command = NULL;
a16e1123 1540 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1541 }
034c6ed7 1542
ceee3d82
LP		 1543 if (state == SERVICE_DEAD ||
1544 state == SERVICE_STOP ||
1545 state == SERVICE_STOP_SIGTERM ||
1546 state == SERVICE_STOP_SIGKILL ||
1547 state == SERVICE_STOP_POST ||
1548 state == SERVICE_FINAL_SIGTERM ||
1549 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1550 state == SERVICE_FAILED ||
ceee3d82 1551 state == SERVICE_AUTO_RESTART)
c2f34808 1552 service_notify_sockets_dead(s, false);
ceee3d82 1553
4f2d528d
LP		 1554 if (state != SERVICE_START_PRE &&
1555 state != SERVICE_START &&
6cf6bbc2
LP		 1556 state != SERVICE_START_POST &&
1557 state != SERVICE_RUNNING &&
1558 state != SERVICE_RELOAD &&
1559 state != SERVICE_STOP &&
1560 state != SERVICE_STOP_SIGTERM &&
1561 state != SERVICE_STOP_SIGKILL &&
1562 state != SERVICE_STOP_POST &&
1563 state != SERVICE_FINAL_SIGTERM &&
1564 state != SERVICE_FINAL_SIGKILL &&
1124fe6f 1565 !(state == SERVICE_DEAD && UNIT(s)->job)) {
4f2d528d 1566 service_close_socket_fd(s);
6cf6bbc2
LP		 1567 service_connection_unref(s);
1568 }
4f2d528d 1569
a6927d7f
MO		 1570 if (state == SERVICE_STOP)
1571 service_stop_watchdog(s);
1572
f6023656
LP		 1573 /* For the inactive states unit_notify() will trim the cgroup,
1574 * but for exit we have to do that ourselves... */
1124fe6f
MS		 1575 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1576 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
f6023656 1577
e537352b 1578 if (old_state != state)
1124fe6f 1579 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1580
e056b01d 1581 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
f42806df 1582 s->reload_result = SERVICE_SUCCESS;
034c6ed7
LP		 1583}
1584
a16e1123
LP		 1585static int service_coldplug(Unit *u) {
1586 Service *s = SERVICE(u);
1587 int r;
1588
1589 assert(s);
1590 assert(s->state == SERVICE_DEAD);
1591
1592 if (s->deserialized_state != s->state) {
1593
1594 if (s->deserialized_state == SERVICE_START_PRE ||
1595 s->deserialized_state == SERVICE_START ||
1596 s->deserialized_state == SERVICE_START_POST ||
1597 s->deserialized_state == SERVICE_RELOAD ||
1598 s->deserialized_state == SERVICE_STOP ||
1599 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1600 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1601 s->deserialized_state == SERVICE_STOP_POST ||
1602 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1603 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1604 s->deserialized_state == SERVICE_AUTO_RESTART) {
1605
1606 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1607 usec_t k;
1608
1609 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1610
1611 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1612 return r;
1613 }
1614 }
a16e1123
LP		 1615
1616 if ((s->deserialized_state == SERVICE_START &&
1617 (s->type == SERVICE_FORKING ||
8c47c732 1618 s->type == SERVICE_DBUS ||
34e9ba66 1619 s->type == SERVICE_ONESHOT ||
8c47c732 1620 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1621 s->deserialized_state == SERVICE_START_POST ||
1622 s->deserialized_state == SERVICE_RUNNING ||
1623 s->deserialized_state == SERVICE_RELOAD ||
1624 s->deserialized_state == SERVICE_STOP ||
1625 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1626 s->deserialized_state == SERVICE_STOP_SIGKILL)
1627 if (s->main_pid > 0)
1628 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1629 return r;
1630
1631 if (s->deserialized_state == SERVICE_START_PRE ||
1632 s->deserialized_state == SERVICE_START ||
1633 s->deserialized_state == SERVICE_START_POST ||
1634 s->deserialized_state == SERVICE_RELOAD ||
1635 s->deserialized_state == SERVICE_STOP ||
1636 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1637 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1638 s->deserialized_state == SERVICE_STOP_POST ||
1639 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1640 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1641 if (s->control_pid > 0)
1642 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1643 return r;
1644
bb242b7b
MO		 1645 if (s->deserialized_state == SERVICE_START_POST ||
1646 s->deserialized_state == SERVICE_RUNNING)
1647 service_handle_watchdog(s);
1648
a16e1123
LP		 1649 service_set_state(s, s->deserialized_state);
1650 }
a16e1123
LP		 1651 return 0;
1652}
1653
44d8db9e
LP		 1654static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1655 Iterator i;
1656 int r;
1657 int *rfds = NULL;
1658 unsigned rn_fds = 0;
57020a3a 1659 Unit *u;
44d8db9e
LP		 1660
1661 assert(s);
1662 assert(fds);
1663 assert(n_fds);
1664
6cf6bbc2
LP		 1665 if (s->socket_fd >= 0)
1666 return 0;
1667
1124fe6f 1668 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
44d8db9e
LP		 1669 int *cfds;
1670 unsigned cn_fds;
57020a3a
LP		 1671 Socket *sock;
1672
ac155bb8 1673 if (u->type != UNIT_SOCKET)
57020a3a
LP		 1674 continue;
1675
1676 sock = SOCKET(u);
44d8db9e 1677
47be870b 1678 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1679 goto fail;
1680
1681 if (!cfds)
1682 continue;
1683
1684 if (!rfds) {
1685 rfds = cfds;
1686 rn_fds = cn_fds;
1687 } else {
1688 int *t;
1689
1690 if (!(t = new(int, rn_fds+cn_fds))) {
1691 free(cfds);
1692 r = -ENOMEM;
1693 goto fail;
1694 }
1695
9c1b183c
LP		 1696 memcpy(t, rfds, rn_fds * sizeof(int));
1697 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1698 free(rfds);
1699 free(cfds);
1700
1701 rfds = t;
1702 rn_fds = rn_fds+cn_fds;
1703 }
1704 }
1705
1706 *fds = rfds;
1707 *n_fds = rn_fds;
3e33402a 1708
44d8db9e
LP		 1709 return 0;
1710
1711fail:
1712 free(rfds);
3e33402a 1713
44d8db9e
LP		 1714 return r;
1715}
1716
81a2b7ce
LP		 1717static int service_spawn(
1718 Service *s,
1719 ExecCommand *c,
1720 bool timeout,
1721 bool pass_fds,
1722 bool apply_permissions,
1723 bool apply_chroot,
1e3ad081 1724 bool apply_tty_stdin,
c952c6ec 1725 bool set_notify_socket,
ecedd90f 1726 bool is_control,
81a2b7ce
LP		 1727 pid_t *_pid) {
1728
034c6ed7
LP		 1729 pid_t pid;
1730 int r;
6cf6bbc2 1731 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1732 unsigned n_fds = 0, n_env = 0;
1733 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1734
1735 assert(s);
1736 assert(c);
1737 assert(_pid);
1738
6cf6bbc2
LP		 1739 if (pass_fds ||
1740 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1741 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1742 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1743
4f2d528d
LP		 1744 if (s->socket_fd >= 0) {
1745 fds = &s->socket_fd;
1746 n_fds = 1;
6cf6bbc2
LP		 1747 } else {
1748 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1749 goto fail;
1750
1751 fds = fdsbuf;
1752 }
4f2d528d 1753 }
44d8db9e 1754
e558336f 1755 if (timeout && s->timeout_usec) {
acbb0225 1756 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1757 goto fail;
1758 } else
acbb0225 1759 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1760
9e2f7c11
LP		 1761 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1762 r = -ENOMEM;
1763 goto fail;
1764 }
1765
9865f3b4 1766 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1767 r = -ENOMEM;
1768 goto fail;
1769 }
c952c6ec 1770
2105e76a 1771 if (set_notify_socket)
1124fe6f 1772 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
c952c6ec
LP		 1773 r = -ENOMEM;
1774 goto fail;
1775 }
1776
2105e76a
LP		 1777 if (s->main_pid > 0)
1778 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1779 r = -ENOMEM;
1780 goto fail;
1781 }
2105e76a 1782
6e0bcc98
MO		 1783 if (s->watchdog_usec > 0)
1784 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1785 r = -ENOMEM;
1786 goto fail;
1787 }
1788
2105e76a 1789 if (!(final_env = strv_env_merge(2,
1124fe6f 1790 UNIT(s)->manager->environment,
2105e76a
LP		 1791 our_env,
1792 NULL))) {
1793 r = -ENOMEM;
1794 goto fail;
1795 }
c952c6ec 1796
9e2f7c11
LP		 1797 r = exec_spawn(c,
1798 argv,
1799 &s->exec_context,
1800 fds, n_fds,
2105e76a 1801 final_env,
9e2f7c11
LP		 1802 apply_permissions,
1803 apply_chroot,
1e3ad081 1804 apply_tty_stdin,
1124fe6f
MS		 1805 UNIT(s)->manager->confirm_spawn,
1806 UNIT(s)->cgroup_bondings,
1807 UNIT(s)->cgroup_attributes,
ecedd90f 1808 is_control ? "control" : NULL,
62bca2c6 1809 UNIT(s)->id,
f2b68789 1810 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
9e2f7c11
LP		 1811 &pid);
1812
9e2f7c11 1813 if (r < 0)
034c6ed7
LP		 1814 goto fail;
1815
4f2d528d 1816
87f0e418 1817 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1818 /* FIXME: we need to do something here */
1819 goto fail;
1820
2105e76a
LP		 1821 free(fdsbuf);
1822 strv_free(argv);
1823 strv_free(our_env);
1824 strv_free(final_env);
1825
034c6ed7
LP		 1826 *_pid = pid;
1827
5cb5a6ff 1828 return 0;
034c6ed7
LP		 1829
1830fail:
2105e76a 1831 free(fdsbuf);
c952c6ec 1832 strv_free(argv);
2105e76a
LP		 1833 strv_free(our_env);
1834 strv_free(final_env);
c952c6ec 1835
034c6ed7 1836 if (timeout)
acbb0225 1837 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1838
1839 return r;
1840}
1841
80876c20
LP		 1842static int main_pid_good(Service *s) {
1843 assert(s);
1844
1845 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1846 * don't know */
1847
1848 /* If we know the pid file, then lets just check if it is
1849 * still valid */
6dfa5494
LP		 1850 if (s->main_pid_known) {
1851
1852 /* If it's an alien child let's check if it is still
1853 * alive ... */
1854 if (s->main_pid_alien)
1855 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1856
1857 /* .. otherwise assume we'll get a SIGCHLD for it,
1858 * which we really should wait for to collect exit
1859 * status and code */
80876c20 1860 return s->main_pid > 0;
6dfa5494 1861 }
80876c20
LP		 1862
1863 /* We don't know the pid */
1864 return -EAGAIN;
1865}
1866
1867static int control_pid_good(Service *s) {
1868 assert(s);
1869
1870 return s->control_pid > 0;
1871}
1872
1873static int cgroup_good(Service *s) {
1874 int r;
1875
1876 assert(s);
1877
1124fe6f 1878 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
80876c20
LP		 1879 return r;
1880
1881 return !r;
1882}
1883
f42806df 1884static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
034c6ed7
LP		 1885 int r;
1886 assert(s);
1887
f42806df
LP		 1888 if (f != SERVICE_SUCCESS)
1889 s->result = f;
034c6ed7 1890
0c7f15b3
MS		 1891 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1892
034c6ed7 1893 if (allow_restart &&
47342320 1894 !s->forbid_restart &&
034c6ed7 1895 (s->restart == SERVICE_RESTART_ALWAYS ||
f42806df
LP		 1896 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1897 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1898 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1899 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
034c6ed7 1900
f42806df
LP		 1901 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1902 if (r < 0)
034c6ed7
LP		 1903 goto fail;
1904
1905 service_set_state(s, SERVICE_AUTO_RESTART);
0c7f15b3 1906 }
034c6ed7 1907
47342320
LP		 1908 s->forbid_restart = false;
1909
034c6ed7
LP		 1910 return;
1911
1912fail:
1124fe6f 1913 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
f42806df 1914 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
034c6ed7
LP		 1915}
1916
f42806df 1917static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
034c6ed7 1918
f42806df 1919static void service_enter_stop_post(Service *s, ServiceResult f) {
034c6ed7
LP		 1920 int r;
1921 assert(s);
1922
f42806df
LP		 1923 if (f != SERVICE_SUCCESS)
1924 s->result = f;
034c6ed7 1925
5e94833f
LP		 1926 service_unwatch_control_pid(s);
1927
80876c20 1928 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1929 s->control_command_id = SERVICE_EXEC_STOP_POST;
1930
ecedd90f
LP		 1931 r = service_spawn(s,
1932 s->control_command,
1933 true,
1934 false,
1935 !s->permissions_start_only,
1936 !s->root_directory_start_only,
1937 true,
1938 false,
1939 true,
1940 &s->control_pid);
1941 if (r < 0)
034c6ed7
LP		 1942 goto fail;
1943
d6ea93e3 1944
80876c20
LP		 1945 service_set_state(s, SERVICE_STOP_POST);
1946 } else
f42806df 1947 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 1948
1949 return;
1950
1951fail:
1124fe6f 1952 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 1953 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 1954}
1955
f42806df 1956static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
034c6ed7 1957 int r;
ca949c9d
LP		 1958 Set *pid_set = NULL;
1959 bool wait_for_exit = false;
034c6ed7
LP		 1960
1961 assert(s);
1962
f42806df
LP		 1963 if (f != SERVICE_SUCCESS)
1964 s->result = f;
034c6ed7 1965
2e22afe9
LP		 1966 if (s->exec_context.kill_mode != KILL_NONE) {
1967 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1968
ca949c9d 1969 if (s->main_pid > 0) {
cd25cce9 1970 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1971 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1972 else
6dfa5494 1973 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1974 }
1975
ca949c9d 1976 if (s->control_pid > 0) {
cd25cce9 1977 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1978 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1979 else
1980 wait_for_exit = true;
1981 }
50159e6a 1982
ca949c9d 1983 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1984
ca949c9d
LP		 1985 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1986 r = -ENOMEM;
50159e6a 1987 goto fail;
ca949c9d
LP		 1988 }
1989
1990 /* Exclude the main/control pids from being killed via the cgroup */
1991 if (s->main_pid > 0)
1992 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1993 goto fail;
1994
1995 if (s->control_pid > 0)
1996 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1997 goto fail;
1998
88f3e0c9 1999 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
ecedd90f 2000 if (r < 0) {
ca949c9d
LP		 2001 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2002 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 2003 } else if (r > 0)
ca949c9d
LP		 2004 wait_for_exit = true;
2005
2006 set_free(pid_set);
da19d5c1 2007 pid_set = NULL;
50159e6a 2008 }
d6ea93e3 2009 }
034c6ed7 2010
ca949c9d 2011 if (wait_for_exit) {
e558336f
LP		 2012 if (s->timeout_usec > 0)
2013 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
2014 goto fail;
d6ea93e3 2015
80876c20
LP		 2016 service_set_state(s, state);
2017 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 2018 service_enter_stop_post(s, SERVICE_SUCCESS);
80876c20 2019 else
f42806df 2020 service_enter_dead(s, SERVICE_SUCCESS, true);
034c6ed7
LP		 2021
2022 return;
2023
2024fail:
1124fe6f 2025 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2026
80876c20 2027 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 2028 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
034c6ed7 2029 else
f42806df 2030 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
ca949c9d
LP		 2031
2032 if (pid_set)
2033 set_free(pid_set);
034c6ed7
LP		 2034}
2035
f42806df 2036static void service_enter_stop(Service *s, ServiceResult f) {
034c6ed7 2037 int r;
5925dd3c 2038
034c6ed7
LP		 2039 assert(s);
2040
f42806df
LP		 2041 if (f != SERVICE_SUCCESS)
2042 s->result = f;
034c6ed7 2043
5e94833f
LP		 2044 service_unwatch_control_pid(s);
2045
80876c20 2046 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 2047 s->control_command_id = SERVICE_EXEC_STOP;
2048
ecedd90f
LP		 2049 r = service_spawn(s,
2050 s->control_command,
2051 true,
2052 false,
2053 !s->permissions_start_only,
2054 !s->root_directory_start_only,
2055 false,
2056 false,
2057 true,
2058 &s->control_pid);
2059 if (r < 0)
034c6ed7
LP		 2060 goto fail;
2061
80876c20
LP		 2062 service_set_state(s, SERVICE_STOP);
2063 } else
f42806df 2064 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 2065
2066 return;
2067
2068fail:
1124fe6f 2069 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2070 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2071}
2072
f42806df 2073static void service_enter_running(Service *s, ServiceResult f) {
4eab639f 2074 int main_pid_ok, cgroup_ok;
80876c20
LP		 2075 assert(s);
2076
f42806df
LP		 2077 if (f != SERVICE_SUCCESS)
2078 s->result = f;
80876c20 2079
4eab639f
LP		 2080 main_pid_ok = main_pid_good(s);
2081 cgroup_ok = cgroup_good(s);
2082
2083 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 2084 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 2085 service_set_state(s, SERVICE_RUNNING);
02ee865a 2086 else if (s->remain_after_exit)
80876c20
LP		 2087 service_set_state(s, SERVICE_EXITED);
2088 else
f42806df 2089 service_enter_stop(s, SERVICE_SUCCESS);
80876c20
LP		 2090}
2091
034c6ed7
LP		 2092static void service_enter_start_post(Service *s) {
2093 int r;
2094 assert(s);
2095
5e94833f
LP		 2096 service_unwatch_control_pid(s);
2097
bb242b7b
MO		 2098 if (s->watchdog_usec > 0)
2099 service_reset_watchdog(s);
2100
80876c20 2101 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2102 s->control_command_id = SERVICE_EXEC_START_POST;
2103
ecedd90f
LP		 2104 r = service_spawn(s,
2105 s->control_command,
2106 true,
2107 false,
2108 !s->permissions_start_only,
2109 !s->root_directory_start_only,
2110 false,
2111 false,
2112 true,
2113 &s->control_pid);
2114 if (r < 0)
034c6ed7
LP		 2115 goto fail;
2116
80876c20
LP		 2117 service_set_state(s, SERVICE_START_POST);
2118 } else
f42806df 2119 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2120
2121 return;
2122
2123fail:
1124fe6f 2124 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2125 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2126}
2127
2128static void service_enter_start(Service *s) {
2129 pid_t pid;
2130 int r;
867b3b7d 2131 ExecCommand *c;
034c6ed7
LP		 2132
2133 assert(s);
2134
2135 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2136 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2137
80876c20
LP		 2138 if (s->type == SERVICE_FORKING)
2139 service_unwatch_control_pid(s);
2140 else
2141 service_unwatch_main_pid(s);
2142
8f53a7b8
LP		 2143 /* We want to ensure that nobody leaks processes from
2144 * START_PRE here, so let's go on a killing spree, People
2145 * should not spawn long running processes from START_PRE. */
88f3e0c9 2146 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
8f53a7b8 2147
867b3b7d
LP		 2148 if (s->type == SERVICE_FORKING) {
2149 s->control_command_id = SERVICE_EXEC_START;
2150 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2151
2152 s->main_command = NULL;
2153 } else {
2154 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2155 s->control_command = NULL;
2156
2157 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2158 }
34e9ba66 2159
ecedd90f
LP		 2160 r = service_spawn(s,
2161 c,
98709151 2162 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
ecedd90f
LP		 2163 true,
2164 true,
2165 true,
2166 true,
2167 s->notify_access != NOTIFY_NONE,
2168 false,
2169 &pid);
2170 if (r < 0)
034c6ed7
LP		 2171 goto fail;
2172
f2b68789 2173 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
034c6ed7
LP		 2174 /* For simple services we immediately start
2175 * the START_POST binaries. */
2176
5925dd3c 2177 service_set_main_pid(s, pid);
034c6ed7
LP		 2178 service_enter_start_post(s);
2179
2180 } else if (s->type == SERVICE_FORKING) {
2181
2182 /* For forking services we wait until the start
2183 * process exited. */
2184
e55224ca 2185 s->control_pid = pid;
80876c20
LP		 2186 service_set_state(s, SERVICE_START);
2187
34e9ba66 2188 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2189 s->type == SERVICE_DBUS ||
2190 s->type == SERVICE_NOTIFY) {
7d55e835 2191
34e9ba66 2192 /* For oneshot services we wait until the start
7d55e835
LP		 2193 * process exited, too, but it is our main process. */
2194
05e343b7 2195 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2196 * but wait for the bus name to appear on the
2197 * bus. Notify services are similar. */
05e343b7 2198
5925dd3c 2199 service_set_main_pid(s, pid);
80876c20 2200 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2201 } else
2202 assert_not_reached("Unknown service type");
2203
2204 return;
2205
2206fail:
1124fe6f 2207 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2208 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2209}
2210
2211static void service_enter_start_pre(Service *s) {
2212 int r;
2213
2214 assert(s);
2215
5e94833f
LP		 2216 service_unwatch_control_pid(s);
2217
80876c20 2218 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
8f53a7b8
LP		 2219
2220 /* Before we start anything, let's clear up what might
2221 * be left from previous runs. */
88f3e0c9 2222 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
8f53a7b8 2223
867b3b7d
LP		 2224 s->control_command_id = SERVICE_EXEC_START_PRE;
2225
ecedd90f
LP		 2226 r = service_spawn(s,
2227 s->control_command,
2228 true,
2229 false,
2230 !s->permissions_start_only,
2231 !s->root_directory_start_only,
2232 true,
2233 false,
2234 true,
2235 &s->control_pid);
2236 if (r < 0)
034c6ed7
LP		 2237 goto fail;
2238
80876c20
LP		 2239 service_set_state(s, SERVICE_START_PRE);
2240 } else
034c6ed7
LP		 2241 service_enter_start(s);
2242
2243 return;
2244
2245fail:
1124fe6f 2246 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2247 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
034c6ed7
LP		 2248}
2249
2250static void service_enter_restart(Service *s) {
2251 int r;
398ef8ba
LP		 2252 DBusError error;
2253
034c6ed7 2254 assert(s);
398ef8ba 2255 dbus_error_init(&error);
034c6ed7 2256
1124fe6f 2257 if (UNIT(s)->job) {
2edfa366
LP		 2258 log_info("Job pending for unit, delaying automatic restart.");
2259
2260 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2261 goto fail;
feae8adb
DW		 2262
2263 return;
2edfa366
LP		 2264 }
2265
48bb5876
DW		 2266 /* Any units that are bound to this service must also be
2267 * restarted. We use JOB_RESTART (instead of the more obvious
2268 * JOB_START) here so that those dependency jobs will be added
2269 * as well. */
2270 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2271 if (r < 0)
034c6ed7
LP		 2272 goto fail;
2273
1124fe6f 2274 log_debug("%s scheduled restart job.", UNIT(s)->id);
034c6ed7
LP		 2275 return;
2276
2277fail:
1124fe6f 2278 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
f42806df 2279 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
398ef8ba
LP		 2280
2281 dbus_error_free(&error);
034c6ed7
LP		 2282}
2283
2284static void service_enter_reload(Service *s) {
2285 int r;
2286
2287 assert(s);
2288
5e94833f
LP		 2289 service_unwatch_control_pid(s);
2290
80876c20 2291 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2292 s->control_command_id = SERVICE_EXEC_RELOAD;
2293
ecedd90f
LP		 2294 r = service_spawn(s,
2295 s->control_command,
2296 true,
2297 false,
2298 !s->permissions_start_only,
2299 !s->root_directory_start_only,
2300 false,
2301 false,
2302 true,
2303 &s->control_pid);
2304 if (r < 0)
034c6ed7
LP		 2305 goto fail;
2306
80876c20
LP		 2307 service_set_state(s, SERVICE_RELOAD);
2308 } else
f42806df 2309 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2310
2311 return;
2312
2313fail:
1124fe6f 2314 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
f42806df
LP		 2315 s->reload_result = SERVICE_FAILURE_RESOURCES;
2316 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2317}
2318
f42806df 2319static void service_run_next_control(Service *s) {
034c6ed7
LP		 2320 int r;
2321
2322 assert(s);
2323 assert(s->control_command);
2324 assert(s->control_command->command_next);
2325
34e9ba66 2326 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2327
34e9ba66 2328 s->control_command = s->control_command->command_next;
5e94833f
LP		 2329 service_unwatch_control_pid(s);
2330
ecedd90f
LP		 2331 r = service_spawn(s,
2332 s->control_command,
2333 true,
2334 false,
2335 !s->permissions_start_only,
2336 !s->root_directory_start_only,
2337 s->control_command_id == SERVICE_EXEC_START_PRE ||
2338 s->control_command_id == SERVICE_EXEC_STOP_POST,
2339 false,
2340 true,
2341 &s->control_pid);
2342 if (r < 0)
034c6ed7
LP		 2343 goto fail;
2344
2345 return;
2346
2347fail:
1124fe6f 2348 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2349
80876c20 2350 if (s->state == SERVICE_START_PRE)
f42806df 2351 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
80876c20 2352 else if (s->state == SERVICE_STOP)
f42806df 2353 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7 2354 else if (s->state == SERVICE_STOP_POST)
f42806df 2355 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
e2f3b44c 2356 else if (s->state == SERVICE_RELOAD) {
f42806df
LP		 2357 s->reload_result = SERVICE_FAILURE_RESOURCES;
2358 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c 2359 } else
f42806df 2360 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
5cb5a6ff
LP		 2361}
2362
f42806df 2363static void service_run_next_main(Service *s) {
34e9ba66
LP		 2364 pid_t pid;
2365 int r;
2366
2367 assert(s);
867b3b7d
LP		 2368 assert(s->main_command);
2369 assert(s->main_command->command_next);
2370 assert(s->type == SERVICE_ONESHOT);
34e9ba66 2371
867b3b7d 2372 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2373 service_unwatch_main_pid(s);
2374
ecedd90f
LP		 2375 r = service_spawn(s,
2376 s->main_command,
98709151 2377 true,
ecedd90f
LP		 2378 true,
2379 true,
2380 true,
2381 true,
2382 s->notify_access != NOTIFY_NONE,
2383 false,
2384 &pid);
2385 if (r < 0)
34e9ba66
LP		 2386 goto fail;
2387
2388 service_set_main_pid(s, pid);
2389
2390 return;
2391
2392fail:
1124fe6f 2393 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
f42806df 2394 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
34e9ba66
LP		 2395}
2396
4b939747
MO		 2397static int service_start_limit_test(Service *s) {
2398 assert(s);
2399
2400 if (ratelimit_test(&s->start_limit))
2401 return 0;
2402
2403 switch (s->start_limit_action) {
2404
2405 case SERVICE_START_LIMIT_NONE:
2406 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2407 break;
2408
2409 case SERVICE_START_LIMIT_REBOOT: {
2410 DBusError error;
2411 int r;
2412
2413 dbus_error_init(&error);
2414
2415 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2416
2417 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2418 if (r < 0) {
2419 log_error("Failed to reboot: %s.", bus_error(&error, r));
2420 dbus_error_free(&error);
2421 }
2422
2423 break;
2424 }
2425
2426 case SERVICE_START_LIMIT_REBOOT_FORCE:
6bda96a0 2427 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
4b939747
MO		 2428 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2429 break;
2430
2431 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2432 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2433 reboot(RB_AUTOBOOT);
2434 break;
2435
2436 default:
2437 log_error("start limit action=%i", s->start_limit_action);
2438 assert_not_reached("Unknown StartLimitAction.");
2439 }
2440
2441 return -ECANCELED;
2442}
2443
87f0e418
LP		 2444static int service_start(Unit *u) {
2445 Service *s = SERVICE(u);
4b939747 2446 int r;
5cb5a6ff
LP		 2447
2448 assert(s);
2449
034c6ed7
LP		 2450 /* We cannot fulfill this request right now, try again later
2451 * please! */
2452 if (s->state == SERVICE_STOP ||
2453 s->state == SERVICE_STOP_SIGTERM ||
2454 s->state == SERVICE_STOP_SIGKILL ||
2455 s->state == SERVICE_STOP_POST ||
2456 s->state == SERVICE_FINAL_SIGTERM ||
2457 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2458 return -EAGAIN;
2459
034c6ed7
LP		 2460 /* Already on it! */
2461 if (s->state == SERVICE_START_PRE ||
2462 s->state == SERVICE_START ||
2463 s->state == SERVICE_START_POST)
2464 return 0;
2465
2e9d6c12
DW		 2466 /* A service that will be restarted must be stopped first to
2467 * trigger BindTo and/or OnFailure dependencies. If a user
2468 * does not want to wait for the holdoff time to elapse, the
2469 * service should be manually restarted, not started. */
2470 if (s->state == SERVICE_AUTO_RESTART) {
2471 log_warning("%s automatic restart is pending, must be stopped before issuing start request.", UNIT(s)->id);
2472 return -ECANCELED;
2473 }
2474
2475 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
5cb5a6ff 2476
1e2e8133 2477 /* Make sure we don't enter a busy loop of some kind. */
4b939747 2478 r = service_start_limit_test(s);
c2f34808
MS		 2479 if (r < 0) {
2480 service_notify_sockets_dead(s, true);
4b939747 2481 return r;
c2f34808 2482 }
1e2e8133 2483
f42806df
LP		 2484 s->result = SERVICE_SUCCESS;
2485 s->reload_result = SERVICE_SUCCESS;
034c6ed7 2486 s->main_pid_known = false;
6dfa5494 2487 s->main_pid_alien = false;
47342320 2488 s->forbid_restart = false;
034c6ed7
LP		 2489
2490 service_enter_start_pre(s);
2491 return 0;
5cb5a6ff
LP		 2492}
2493
87f0e418
LP		 2494static int service_stop(Unit *u) {
2495 Service *s = SERVICE(u);
5cb5a6ff
LP		 2496
2497 assert(s);
2498
f0c7b229 2499 /* Don't create restart jobs from here. */
47342320 2500 s->forbid_restart = true;
034c6ed7 2501
e537352b
LP		 2502 /* Already on it */
2503 if (s->state == SERVICE_STOP ||
2504 s->state == SERVICE_STOP_SIGTERM ||
2505 s->state == SERVICE_STOP_SIGKILL ||
2506 s->state == SERVICE_STOP_POST ||
2507 s->state == SERVICE_FINAL_SIGTERM ||
2508 s->state == SERVICE_FINAL_SIGKILL)
2509 return 0;
2510
f0c7b229 2511 /* A restart will be scheduled or is in progress. */
034c6ed7 2512 if (s->state == SERVICE_AUTO_RESTART) {
0c7f15b3 2513 service_set_state(s, SERVICE_DEAD);
034c6ed7
LP		 2514 return 0;
2515 }
2516
3f6c78dc
LP		 2517 /* If there's already something running we go directly into
2518 * kill mode. */
2519 if (s->state == SERVICE_START_PRE ||
2520 s->state == SERVICE_START ||
2521 s->state == SERVICE_START_POST ||
2522 s->state == SERVICE_RELOAD) {
f42806df 2523 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
3f6c78dc
LP		 2524 return 0;
2525 }
5cb5a6ff 2526
3f6c78dc
LP		 2527 assert(s->state == SERVICE_RUNNING ||
2528 s->state == SERVICE_EXITED);
3a762661 2529
f42806df 2530 service_enter_stop(s, SERVICE_SUCCESS);
5cb5a6ff
LP		 2531 return 0;
2532}
2533
87f0e418
LP		 2534static int service_reload(Unit *u) {
2535 Service *s = SERVICE(u);
034c6ed7
LP		 2536
2537 assert(s);
2538
80876c20 2539 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2540
2541 service_enter_reload(s);
5cb5a6ff
LP		 2542 return 0;
2543}
2544
87f0e418
LP		 2545static bool service_can_reload(Unit *u) {
2546 Service *s = SERVICE(u);
034c6ed7
LP		 2547
2548 assert(s);
2549
2550 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2551}
2552
a16e1123
LP		 2553static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2554 Service *s = SERVICE(u);
2555
2556 assert(u);
2557 assert(f);
2558 assert(fds);
2559
2560 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
f42806df
LP		 2561 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2562 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
a16e1123
LP		 2563
2564 if (s->control_pid > 0)
5925dd3c 2565 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2566
5925dd3c
LP		 2567 if (s->main_pid_known && s->main_pid > 0)
2568 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2569
2570 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2571
3a2776bc
LP		 2572 if (s->status_text)
2573 unit_serialize_item(u, f, "status-text", s->status_text);
2574
cfc4eb4c
LP		 2575 /* FIXME: There's a minor uncleanliness here: if there are
2576 * multiple commands attached here, we will start from the
2577 * first one again */
a16e1123 2578 if (s->control_command_id >= 0)
825636e5 2579 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2580
2581 if (s->socket_fd >= 0) {
2582 int copy;
2583
2584 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2585 return copy;
2586
2587 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2588 }
2589
ecdbca40
LP		 2590 if (s->main_exec_status.pid > 0) {
2591 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2592 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2593 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2594
799fd0fd 2595 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2596 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2597 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2598 }
2599 }
a6927d7f
MO		 2600 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2601 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
ecdbca40 2602
a16e1123
LP		 2603 return 0;
2604}
2605
2606static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2607 Service *s = SERVICE(u);
a16e1123
LP		 2608
2609 assert(u);
2610 assert(key);
2611 assert(value);
2612 assert(fds);
2613
2614 if (streq(key, "state")) {
2615 ServiceState state;
2616
2617 if ((state = service_state_from_string(value)) < 0)
2618 log_debug("Failed to parse state value %s", value);
2619 else
2620 s->deserialized_state = state;
f42806df
LP		 2621 } else if (streq(key, "result")) {
2622 ServiceResult f;
2623
2624 f = service_result_from_string(value);
2625 if (f < 0)
2626 log_debug("Failed to parse result value %s", value);
2627 else if (f != SERVICE_SUCCESS)
2628 s->result = f;
2629
2630 } else if (streq(key, "reload-result")) {
2631 ServiceResult f;
2632
2633 f = service_result_from_string(value);
2634 if (f < 0)
2635 log_debug("Failed to parse reload result value %s", value);
2636 else if (f != SERVICE_SUCCESS)
2637 s->reload_result = f;
a16e1123 2638
a16e1123 2639 } else if (streq(key, "control-pid")) {
5925dd3c 2640 pid_t pid;
a16e1123 2641
e364ad06 2642 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2643 log_debug("Failed to parse control-pid value %s", value);
2644 else
e55224ca 2645 s->control_pid = pid;
a16e1123 2646 } else if (streq(key, "main-pid")) {
5925dd3c 2647 pid_t pid;
a16e1123 2648
e364ad06 2649 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2650 log_debug("Failed to parse main-pid value %s", value);
2651 else
5925dd3c 2652 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2653 } else if (streq(key, "main-pid-known")) {
2654 int b;
2655
2656 if ((b = parse_boolean(value)) < 0)
2657 log_debug("Failed to parse main-pid-known value %s", value);
2658 else
2659 s->main_pid_known = b;
3a2776bc
LP		 2660 } else if (streq(key, "status-text")) {
2661 char *t;
2662
2663 if ((t = strdup(value))) {
2664 free(s->status_text);
2665 s->status_text = t;
2666 }
2667
a16e1123
LP		 2668 } else if (streq(key, "control-command")) {
2669 ServiceExecCommand id;
2670
2671 if ((id = service_exec_command_from_string(value)) < 0)
2672 log_debug("Failed to parse exec-command value %s", value);
2673 else {
2674 s->control_command_id = id;
2675 s->control_command = s->exec_command[id];
2676 }
2677 } else if (streq(key, "socket-fd")) {
2678 int fd;
2679
2680 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2681 log_debug("Failed to parse socket-fd value %s", value);
2682 else {
2683
2684 if (s->socket_fd >= 0)
2685 close_nointr_nofail(s->socket_fd);
2686 s->socket_fd = fdset_remove(fds, fd);
2687 }
ecdbca40
LP		 2688 } else if (streq(key, "main-exec-status-pid")) {
2689 pid_t pid;
2690
e364ad06 2691 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2692 log_debug("Failed to parse main-exec-status-pid value %s", value);
2693 else
2694 s->main_exec_status.pid = pid;
2695 } else if (streq(key, "main-exec-status-code")) {
2696 int i;
2697
e364ad06 2698 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2699 log_debug("Failed to parse main-exec-status-code value %s", value);
2700 else
2701 s->main_exec_status.code = i;
2702 } else if (streq(key, "main-exec-status-status")) {
2703 int i;
2704
e364ad06 2705 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2706 log_debug("Failed to parse main-exec-status-status value %s", value);
2707 else
2708 s->main_exec_status.status = i;
799fd0fd
LP		 2709 } else if (streq(key, "main-exec-status-start"))
2710 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2711 else if (streq(key, "main-exec-status-exit"))
2712 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
a6927d7f
MO		 2713 else if (streq(key, "watchdog-timestamp"))
2714 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
799fd0fd 2715 else
a16e1123
LP		 2716 log_debug("Unknown serialization key '%s'", key);
2717
2718 return 0;
2719}
2720
87f0e418 2721static UnitActiveState service_active_state(Unit *u) {
e056b01d
LP		 2722 const UnitActiveState *table;
2723
87f0e418 2724 assert(u);
5cb5a6ff 2725
e056b01d
LP		 2726 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2727
2728 return table[SERVICE(u)->state];
034c6ed7
LP		 2729}
2730
10a94420
LP		 2731static const char *service_sub_state_to_string(Unit *u) {
2732 assert(u);
2733
2734 return service_state_to_string(SERVICE(u)->state);
2735}
2736
701cc384
LP		 2737static bool service_check_gc(Unit *u) {
2738 Service *s = SERVICE(u);
2739
2740 assert(s);
2741
6d55002a
LP		 2742 /* Never clean up services that still have a process around,
2743 * even if the service is formally dead. */
2744 if (cgroup_good(s) > 0 ||
2745 main_pid_good(s) > 0 ||
2746 control_pid_good(s) > 0)
2747 return true;
2748
2749#ifdef HAVE_SYSV_COMPAT
1b64d026 2750 if (s->is_sysv)
6d55002a 2751 return true;
07459bb6 2752#endif
701cc384 2753
6d55002a
LP		 2754 return false;
2755}
2756
701cc384
LP		 2757static bool service_check_snapshot(Unit *u) {
2758 Service *s = SERVICE(u);
2759
2760 assert(s);
2761
2762 return !s->got_socket_fd;
2763}
2764
3a111838
MS		 2765static int service_retry_pid_file(Service *s) {
2766 int r;
2767
2768 assert(s->pid_file);
2769 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2770
2771 r = service_load_pid_file(s, false);
2772 if (r < 0)
2773 return r;
2774
2775 service_unwatch_pid_file(s);
2776
f42806df 2777 service_enter_running(s, SERVICE_SUCCESS);
3a111838
MS		 2778 return 0;
2779}
2780
2781static int service_watch_pid_file(Service *s) {
2782 int r;
2783
1124fe6f 2784 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
57020a3a 2785 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
3a111838
MS		 2786 if (r < 0)
2787 goto fail;
2788
2789 /* the pidfile might have appeared just before we set the watch */
2790 service_retry_pid_file(s);
2791
2792 return 0;
2793fail:
2794 log_error("Failed to set a watch for %s's PID file %s: %s",
1124fe6f 2795 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
3a111838
MS		 2796 service_unwatch_pid_file(s);
2797 return r;
2798}
2799
2800static int service_demand_pid_file(Service *s) {
2801 PathSpec *ps;
2802
2803 assert(s->pid_file);
2804 assert(!s->pid_file_pathspec);
2805
2806 ps = new0(PathSpec, 1);
2807 if (!ps)
2808 return -ENOMEM;
2809
2810 ps->path = strdup(s->pid_file);
2811 if (!ps->path) {
2812 free(ps);
2813 return -ENOMEM;
2814 }
2815
2816 path_kill_slashes(ps->path);
2817
2818 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2819 * keep their PID file open all the time. */
2820 ps->type = PATH_MODIFIED;
2821 ps->inotify_fd = -1;
2822
2823 s->pid_file_pathspec = ps;
2824
2825 return service_watch_pid_file(s);
2826}
2827
2828static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2829 Service *s = SERVICE(u);
2830
2831 assert(s);
2832 assert(fd >= 0);
2833 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2834 assert(s->pid_file_pathspec);
57020a3a 2835 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
3a111838 2836
ac155bb8 2837 log_debug("inotify event for %s", u->id);
3a111838 2838
57020a3a 2839 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
3a111838
MS		 2840 goto fail;
2841
2842 if (service_retry_pid_file(s) == 0)
2843 return;
2844
2845 if (service_watch_pid_file(s) < 0)
2846 goto fail;
2847
2848 return;
2849fail:
2850 service_unwatch_pid_file(s);
f42806df 2851 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 2852}
2853
87f0e418
LP		 2854static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2855 Service *s = SERVICE(u);
f42806df 2856 ServiceResult f;
5cb5a6ff
LP		 2857
2858 assert(s);
034c6ed7
LP		 2859 assert(pid >= 0);
2860
f42806df
LP		 2861 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2862 f = SERVICE_SUCCESS;
2863 else if (code == CLD_EXITED)
2864 f = SERVICE_FAILURE_EXIT_CODE;
2865 else if (code == CLD_KILLED)
2866 f = SERVICE_FAILURE_SIGNAL;
2867 else if (code == CLD_DUMPED)
2868 f = SERVICE_FAILURE_CORE_DUMP;
d06dacd0 2869 else
cfc4eb4c 2870 assert_not_reached("Unknown code");
034c6ed7
LP		 2871
2872 if (s->main_pid == pid) {
db01f8b3
MS		 2873 /* Forking services may occasionally move to a new PID.
2874 * As long as they update the PID file before exiting the old
2875 * PID, they're fine. */
5375410b 2876 if (service_load_pid_file(s, false) == 0)
db01f8b3 2877 return;
034c6ed7 2878
034c6ed7 2879 s->main_pid = 0;
6ea832a2 2880 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2881
867b3b7d
LP		 2882 /* If this is not a forking service than the main
2883 * process got started and hence we copy the exit
2884 * status so that it is recorded both as main and as
2885 * control process exit status */
2886 if (s->main_command) {
2887 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2888
867b3b7d 2889 if (s->main_command->ignore)
f42806df 2890 f = SERVICE_SUCCESS;
034c6ed7
LP		 2891 }
2892
f42806df 2893 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2894 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2895
2896 if (f != SERVICE_SUCCESS)
2897 s->result = f;
034c6ed7 2898
867b3b7d
LP		 2899 if (s->main_command &&
2900 s->main_command->command_next &&
f42806df 2901 f == SERVICE_SUCCESS) {
034c6ed7 2902
34e9ba66
LP		 2903 /* There is another command to *
2904 * execute, so let's do that. */
034c6ed7 2905
ac155bb8 2906 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
f42806df 2907 service_run_next_main(s);
034c6ed7 2908
34e9ba66
LP		 2909 } else {
2910
2911 /* The service exited, so the service is officially
2912 * gone. */
867b3b7d 2913 s->main_command = NULL;
34e9ba66
LP		 2914
2915 switch (s->state) {
2916
2917 case SERVICE_START_POST:
2918 case SERVICE_RELOAD:
2919 case SERVICE_STOP:
2920 /* Need to wait until the operation is
2921 * done */
c4653a4d 2922 break;
7d55e835 2923
34e9ba66
LP		 2924 case SERVICE_START:
2925 if (s->type == SERVICE_ONESHOT) {
2926 /* This was our main goal, so let's go on */
f42806df 2927 if (f == SERVICE_SUCCESS)
34e9ba66
LP		 2928 service_enter_start_post(s);
2929 else
f42806df 2930 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
34e9ba66
LP		 2931 break;
2932 } else {
2933 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2934
34e9ba66
LP		 2935 /* Fall through */
2936 }
034c6ed7 2937
34e9ba66 2938 case SERVICE_RUNNING:
f42806df 2939 service_enter_running(s, f);
34e9ba66 2940 break;
034c6ed7 2941
34e9ba66
LP		 2942 case SERVICE_STOP_SIGTERM:
2943 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2944
34e9ba66 2945 if (!control_pid_good(s))
f42806df 2946 service_enter_stop_post(s, f);
5cb5a6ff 2947
34e9ba66
LP		 2948 /* If there is still a control process, wait for that first */
2949 break;
2950
2951 default:
2952 assert_not_reached("Uh, main process died at wrong time.");
2953 }
034c6ed7 2954 }
5cb5a6ff 2955
034c6ed7 2956 } else if (s->control_pid == pid) {
034c6ed7 2957
34e9ba66
LP		 2958 s->control_pid = 0;
2959
b708e7ce 2960 if (s->control_command) {
6ea832a2 2961 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2962
b708e7ce 2963 if (s->control_command->ignore)
f42806df 2964 f = SERVICE_SUCCESS;
b708e7ce
LP		 2965 }
2966
f42806df 2967 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2968 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2969
2970 if (f != SERVICE_SUCCESS)
2971 s->result = f;
034c6ed7 2972
88f3e0c9
LP		 2973 /* Immediately get rid of the cgroup, so that the
2974 * kernel doesn't delay the cgroup empty messages for
2975 * the service cgroup any longer than necessary */
2976 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2977
34e9ba66
LP		 2978 if (s->control_command &&
2979 s->control_command->command_next &&
f42806df 2980 f == SERVICE_SUCCESS) {
034c6ed7
LP		 2981
2982 /* There is another command to *
2983 * execute, so let's do that. */
2984
ac155bb8 2985 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
f42806df 2986 service_run_next_control(s);
034c6ed7 2987
80876c20 2988 } else {
034c6ed7
LP		 2989 /* No further commands for this step, so let's
2990 * figure out what to do next */
2991
a16e1123
LP		 2992 s->control_command = NULL;
2993 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2994
ac155bb8 2995 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
bd982a8b 2996
034c6ed7
LP		 2997 switch (s->state) {
2998
2999 case SERVICE_START_PRE:
f42806df 3000 if (f == SERVICE_SUCCESS)
034c6ed7
LP		 3001 service_enter_start(s);
3002 else
f42806df 3003 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
034c6ed7
LP		 3004 break;
3005
3006 case SERVICE_START:
3007 assert(s->type == SERVICE_FORKING);
3008
f42806df
LP		 3009 if (f != SERVICE_SUCCESS) {
3010 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3a111838
MS		 3011 break;
3012 }
034c6ed7 3013
3a111838 3014 if (s->pid_file) {
f42806df
LP		 3015 bool has_start_post;
3016 int r;
3017
3a111838
MS		 3018 /* Let's try to load the pid file here if we can.
3019 * The PID file might actually be created by a START_POST
3020 * script. In that case don't worry if the loading fails. */
f42806df
LP		 3021
3022 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3023 r = service_load_pid_file(s, !has_start_post);
3a111838
MS		 3024 if (!has_start_post && r < 0) {
3025 r = service_demand_pid_file(s);
3026 if (r < 0 || !cgroup_good(s))
f42806df 3027 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3028 break;
3029 }
034c6ed7 3030 } else
3a111838 3031 service_search_main_pid(s);
034c6ed7 3032
3a111838 3033 service_enter_start_post(s);
034c6ed7
LP		 3034 break;
3035
3036 case SERVICE_START_POST:
f42806df
LP		 3037 if (f != SERVICE_SUCCESS) {
3038 service_enter_stop(s, f);
2096e009 3039 break;
034c6ed7
LP		 3040 }
3041
2096e009 3042 if (s->pid_file) {
f42806df
LP		 3043 int r;
3044
3045 r = service_load_pid_file(s, true);
2096e009
MS		 3046 if (r < 0) {
3047 r = service_demand_pid_file(s);
3048 if (r < 0 || !cgroup_good(s))
f42806df 3049 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2096e009
MS		 3050 break;
3051 }
3052 } else
3053 service_search_main_pid(s);
3054
f42806df 3055 service_enter_running(s, SERVICE_SUCCESS);
3185a36b 3056 break;
034c6ed7
LP		 3057
3058 case SERVICE_RELOAD:
f42806df 3059 if (f == SERVICE_SUCCESS) {
5375410b 3060 service_load_pid_file(s, true);
3185a36b
LP		 3061 service_search_main_pid(s);
3062 }
3063
f42806df
LP		 3064 s->reload_result = f;
3065 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 3066 break;
3067
3068 case SERVICE_STOP:
f42806df 3069 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
034c6ed7
LP		 3070 break;
3071
3072 case SERVICE_STOP_SIGTERM:
3073 case SERVICE_STOP_SIGKILL:
3074 if (main_pid_good(s) <= 0)
f42806df 3075 service_enter_stop_post(s, f);
034c6ed7
LP		 3076
3077 /* If there is still a service
3078 * process around, wait until
3079 * that one quit, too */
3080 break;
3081
3082 case SERVICE_STOP_POST:
3083 case SERVICE_FINAL_SIGTERM:
3084 case SERVICE_FINAL_SIGKILL:
f42806df 3085 service_enter_dead(s, f, true);
034c6ed7
LP		 3086 break;
3087
3088 default:
3089 assert_not_reached("Uh, control process died at wrong time.");
3090 }
3091 }
8c47c732 3092 }
c4e2ceae
LP		 3093
3094 /* Notify clients about changed exit status */
3095 unit_add_to_dbus_queue(u);
034c6ed7
LP		 3096}
3097
acbb0225 3098static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 3099 Service *s = SERVICE(u);
034c6ed7
LP		 3100
3101 assert(s);
3102 assert(elapsed == 1);
3103
bb242b7b
MO		 3104 if (w == &s->watchdog_watch) {
3105 service_handle_watchdog(s);
3106 return;
3107 }
3108
acbb0225 3109 assert(w == &s->timer_watch);
034c6ed7
LP		 3110
3111 switch (s->state) {
3112
3113 case SERVICE_START_PRE:
3114 case SERVICE_START:
ac155bb8 3115 log_warning("%s operation timed out. Terminating.", u->id);
f42806df 3116 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
80876c20
LP		 3117 break;
3118
034c6ed7 3119 case SERVICE_START_POST:
ac155bb8 3120 log_warning("%s operation timed out. Stopping.", u->id);
f42806df 3121 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3122 break;
3123
e2f3b44c 3124 case SERVICE_RELOAD:
ac155bb8 3125 log_warning("%s operation timed out. Stopping.", u->id);
f42806df
LP		 3126 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3127 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c
LP		 3128 break;
3129
034c6ed7 3130 case SERVICE_STOP:
ac155bb8 3131 log_warning("%s stopping timed out. Terminating.", u->id);
f42806df 3132 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3133 break;
3134
3135 case SERVICE_STOP_SIGTERM:
ba035df2 3136 if (s->exec_context.send_sigkill) {
ac155bb8 3137 log_warning("%s stopping timed out. Killing.", u->id);
f42806df 3138 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3139 } else {
ac155bb8 3140 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
f42806df 3141 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
ba035df2
LP		 3142 }
3143
034c6ed7
LP		 3144 break;
3145
3146 case SERVICE_STOP_SIGKILL:
35b8ca3a 3147 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 3148 * Must be something we cannot kill, so let's just be
3149 * weirded out and continue */
3150
ac155bb8 3151 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
f42806df 3152 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3153 break;
3154
3155 case SERVICE_STOP_POST:
ac155bb8 3156 log_warning("%s stopping timed out (2). Terminating.", u->id);
f42806df 3157 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3158 break;
3159
3160 case SERVICE_FINAL_SIGTERM:
ba035df2 3161 if (s->exec_context.send_sigkill) {
ac155bb8 3162 log_warning("%s stopping timed out (2). Killing.", u->id);
f42806df 3163 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3164 } else {
ac155bb8 3165 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
f42806df 3166 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
ba035df2
LP		 3167 }
3168
034c6ed7
LP		 3169 break;
3170
3171 case SERVICE_FINAL_SIGKILL:
ac155bb8 3172 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
f42806df 3173 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
034c6ed7
LP		 3174 break;
3175
3176 case SERVICE_AUTO_RESTART:
ac155bb8 3177 log_info("%s holdoff time over, scheduling restart.", u->id);
034c6ed7
LP		 3178 service_enter_restart(s);
3179 break;
3180
3181 default:
3182 assert_not_reached("Timeout at wrong time.");
3183 }
5cb5a6ff
LP		 3184}
3185
8e274523
LP		 3186static void service_cgroup_notify_event(Unit *u) {
3187 Service *s = SERVICE(u);
3188
3189 assert(u);
3190
ac155bb8 3191 log_debug("%s: cgroup is empty", u->id);
8e274523
LP		 3192
3193 switch (s->state) {
3194
3195 /* Waiting for SIGCHLD is usually more interesting,
3196 * because it includes return codes/signals. Which is
3197 * why we ignore the cgroup events for most cases,
3198 * except when we don't know pid which to expect the
3199 * SIGCHLD for. */
3200
3a111838
MS		 3201 case SERVICE_START:
3202 case SERVICE_START_POST:
3203 /* If we were hoping for the daemon to write its PID file,
3204 * we can give up now. */
3205 if (s->pid_file_pathspec) {
1124fe6f 3206 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3a111838
MS		 3207 service_unwatch_pid_file(s);
3208 if (s->state == SERVICE_START)
f42806df 3209 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838 3210 else
f42806df 3211 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3212 }
3213 break;
3214
8e274523 3215 case SERVICE_RUNNING:
f42806df
LP		 3216 /* service_enter_running() will figure out what to do */
3217 service_enter_running(s, SERVICE_SUCCESS);
8e274523
LP		 3218 break;
3219
28708d8a
LP		 3220 case SERVICE_STOP_SIGTERM:
3221 case SERVICE_STOP_SIGKILL:
6dfa5494 3222
28708d8a 3223 if (main_pid_good(s) <= 0 && !control_pid_good(s))
f42806df 3224 service_enter_stop_post(s, SERVICE_SUCCESS);
28708d8a
LP		 3225
3226 break;
3227
7f97f0fe
LP		 3228 case SERVICE_FINAL_SIGTERM:
3229 case SERVICE_FINAL_SIGKILL:
3230 if (main_pid_good(s) <= 0 && !control_pid_good(s))
e201a038 3231 service_enter_dead(s, SERVICE_SUCCESS, true);
7f97f0fe
LP		 3232
3233 break;
3234
8e274523
LP		 3235 default:
3236 ;
3237 }
3238}
3239
c952c6ec 3240static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 3241 Service *s = SERVICE(u);
3242 const char *e;
3243
3244 assert(u);
3245
c952c6ec
LP		 3246 if (s->notify_access == NOTIFY_NONE) {
3247 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
ac155bb8 3248 u->id, (unsigned long) pid);
c952c6ec
LP		 3249 return;
3250 }
3251
3252 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3253 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
ac155bb8 3254 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
c952c6ec
LP		 3255 return;
3256 }
3257
ac155bb8 3258 log_debug("%s: Got message", u->id);
8c47c732
LP		 3259
3260 /* Interpret MAINPID= */
3261 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3262 (s->state == SERVICE_START ||
3263 s->state == SERVICE_START_POST ||
3264 s->state == SERVICE_RUNNING ||
3265 s->state == SERVICE_RELOAD)) {
8c47c732 3266
5925dd3c 3267 if (parse_pid(e + 8, &pid) < 0)
92abbefb 3268 log_warning("Failed to parse notification message %s", e);
8c47c732 3269 else {
ac155bb8 3270 log_debug("%s: got %s", u->id, e);
5925dd3c 3271 service_set_main_pid(s, pid);
8c47c732
LP		 3272 }
3273 }
3274
3275 /* Interpret READY= */
3276 if (s->type == SERVICE_NOTIFY &&
3277 s->state == SERVICE_START &&
3278 strv_find(tags, "READY=1")) {
ac155bb8 3279 log_debug("%s: got READY=1", u->id);
8c47c732
LP		 3280
3281 service_enter_start_post(s);
3282 }
3283
3284 /* Interpret STATUS= */
7f110ff9
LP		 3285 e = strv_find_prefix(tags, "STATUS=");
3286 if (e) {
8c47c732
LP		 3287 char *t;
3288
3a2776bc 3289 if (e[7]) {
7f110ff9
LP		 3290
3291 if (!utf8_is_valid(e+7)) {
3292 log_warning("Status message in notification is not UTF-8 clean.");
3293 return;
3294 }
3295
3296 t = strdup(e+7);
3297 if (!t) {
3a2776bc
LP		 3298 log_error("Failed to allocate string.");
3299 return;
3300 }
3301
ac155bb8 3302 log_debug("%s: got %s", u->id, e);
8c47c732 3303
3a2776bc
LP		 3304 free(s->status_text);
3305 s->status_text = t;
3306 } else {
3307 free(s->status_text);
3308 s->status_text = NULL;
3309 }
8c47c732 3310
8c47c732 3311 }
a6927d7f
MO		 3312 if (strv_find(tags, "WATCHDOG=1")) {
3313 log_debug("%s: got WATCHDOG=1", u->id);
3314 service_reset_watchdog(s);
3315 }
c4e2ceae
LP		 3316
3317 /* Notify clients about changed status or main pid */
3318 unit_add_to_dbus_queue(u);
8c47c732
LP		 3319}
3320
07459bb6 3321#ifdef HAVE_SYSV_COMPAT
de3910a3
FC		 3322
3323#ifdef TARGET_SUSE
3324static void sysv_facility_in_insserv_conf(Manager *mgr) {
3325 FILE *f=NULL;
3326 int r;
3327
3328 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3329 r = errno == ENOENT ? 0 : -errno;
3330 goto finish;
3331 }
3332
3333 while (!feof(f)) {
3334 char l[LINE_MAX], *t;
3335 char **parsed = NULL;
3336
3337 if (!fgets(l, sizeof(l), f)) {
3338 if (feof(f))
3339 break;
3340
3341 r = -errno;
3342 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3343 goto finish;
3344 }
3345
3346 t = strstrip(l);
3347 if (*t != '$' && *t != '<')
3348 continue;
3349
3350 parsed = strv_split(t,WHITESPACE);
3351 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3352 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3353 char *facility;
3354 Unit *u;
3355 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3356 continue;
ac155bb8 3357 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
de3910a3
FC		 3358 UnitDependency e;
3359 char *dep = NULL, *name, **j;
3360
3361 STRV_FOREACH (j, parsed+1) {
3362 if (*j[0]=='+') {
3363 e = UNIT_WANTS;
3364 name = *j+1;
3365 }
3366 else {
3367 e = UNIT_REQUIRES;
3368 name = *j;
3369 }
3370 if (sysv_translate_facility(name, NULL, &dep) < 0)
3371 continue;
3372
3373 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3374 free(dep);
3375 }
3376 }
3377 free(facility);
3378 }
3379 strv_free(parsed);
3380 }
3381finish:
3382 if (f)
3383 fclose(f);
3384
3385}
3386#endif
3387
2c4104f0 3388static int service_enumerate(Manager *m) {
2c4104f0
LP		 3389 char **p;
3390 unsigned i;
3391 DIR *d = NULL;
3392 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 3393 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3394 Unit *service;
3395 Iterator j;
2c4104f0
LP		 3396 int r;
3397
3398 assert(m);
3399
b1bc08e5
LP		 3400 if (m->running_as != MANAGER_SYSTEM)
3401 return 0;
3402
c68364b7
LP		 3403 zero(runlevel_services);
3404
84e3543e 3405 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 3406 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 3407 struct dirent *de;
3408
3409 free(path);
70132bd0
LP		 3410 path = join(*p, "/", rcnd_table[i].path, NULL);
3411 if (!path) {
2c4104f0
LP		 3412 r = -ENOMEM;
3413 goto finish;
3414 }
3415
3416 if (d)
3417 closedir(d);
3418
3419 if (!(d = opendir(path))) {
3420 if (errno != ENOENT)
3421 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3422
3423 continue;
3424 }
3425
3426 while ((de = readdir(d))) {
db06e3b6 3427 int a, b;
2c4104f0
LP		 3428
3429 if (ignore_file(de->d_name))
3430 continue;
3431
3432 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3433 continue;
3434
3435 if (strlen(de->d_name) < 4)
3436 continue;
3437
db06e3b6
LP		 3438 a = undecchar(de->d_name[1]);
3439 b = undecchar(de->d_name[2]);
3440
3441 if (a < 0 || b < 0)
3442 continue;
3443
2c4104f0 3444 free(fpath);
44d91056 3445 fpath = join(path, "/", de->d_name, NULL);
8ea913b2 3446 if (!fpath) {
2c4104f0
LP		 3447 r = -ENOMEM;
3448 goto finish;
3449 }
3450
3451 if (access(fpath, X_OK) < 0) {
3452
3453 if (errno != ENOENT)
3454 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3455
3456 continue;
3457 }
3458
3459 free(name);
b7ccee3c 3460 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3461 r = -ENOMEM;
3462 goto finish;
3463 }
3464
398ef8ba 3465 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3466 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3467 continue;
3468 }
2c4104f0 3469
c68364b7
LP		 3470 if (de->d_name[0] == 'S') {
3471
f73d93a4 3472 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3473 SERVICE(service)->sysv_start_priority_from_rcnd =
3474 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3475
c68364b7 3476 SERVICE(service)->sysv_enabled = true;
f73d93a4 3477 }
db06e3b6 3478
c68364b7
LP		 3479 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3480 goto finish;
2c4104f0 3481
c68364b7 3482 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3483 goto finish;
23a177ef 3484
fc5df99e
LP		 3485 } else if (de->d_name[0] == 'K' &&
3486 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3487 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3488
c68364b7
LP		 3489 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3490 goto finish;
3491
3492 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3493 goto finish;
3494 }
3495 }
3496 }
3497
c68364b7
LP		 3498 /* Now we loaded all stubs and are aware of the lowest
3499 start-up priority for all services, not let's actually load
3500 the services, this will also tell us which services are
3501 actually native now */
3502 manager_dispatch_load_queue(m);
3503
3504 /* If this is a native service, rely on native ways to pull in
3505 * a service, don't pull it in via sysv rcN.d links. */
3506 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3507 SET_FOREACH(service, runlevel_services[i], j) {
3508 service = unit_follow_merge(service);
3509
ac155bb8 3510 if (service->fragment_path)
c68364b7
LP		 3511 continue;
3512
3513 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3514 goto finish;
3515 }
3516
3517 /* We honour K links only for halt/reboot. For the normal
3518 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3519 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3520 * between the runlevels 0 and 6 and just add them to the
3521 * special shutdown target. On SUSE the boot.d/ runlevel is
3522 * also used for shutdown, so we add links for that too to the
3523 * shutdown target.*/
3524 SET_FOREACH(service, shutdown_services, j) {
3525 service = unit_follow_merge(service);
3526
ac155bb8 3527 if (service->fragment_path)
c68364b7
LP		 3528 continue;
3529
ead8e478 3530 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3531 goto finish;
3532 }
3533
2c4104f0
LP		 3534 r = 0;
3535
de3910a3 3536#ifdef TARGET_SUSE
3a111838 3537 sysv_facility_in_insserv_conf (m);
de3910a3
FC		 3538#endif
3539
2c4104f0
LP		 3540finish:
3541 free(path);
3542 free(fpath);
3543 free(name);
fbe9f3a9 3544
c68364b7
LP		 3545 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3546 set_free(runlevel_services[i]);
3547 set_free(shutdown_services);
3548
fbe9f3a9
LP		 3549 if (d)
3550 closedir(d);
2c4104f0
LP		 3551
3552 return r;
3553}
07459bb6 3554#endif
2c4104f0 3555
05e343b7
LP		 3556static void service_bus_name_owner_change(
3557 Unit *u,
3558 const char *name,
3559 const char *old_owner,
3560 const char *new_owner) {
3561
3562 Service *s = SERVICE(u);
3563
3564 assert(s);
3565 assert(name);
3566
3567 assert(streq(s->bus_name, name));
3568 assert(old_owner || new_owner);
3569
3570 if (old_owner && new_owner)
ac155bb8 3571 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
05e343b7 3572 else if (old_owner)
ac155bb8 3573 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
05e343b7 3574 else
ac155bb8 3575 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
05e343b7
LP		 3576
3577 s->bus_name_good = !!new_owner;
3578
3579 if (s->type == SERVICE_DBUS) {
3580
3581 /* service_enter_running() will figure out what to
3582 * do */
3583 if (s->state == SERVICE_RUNNING)
f42806df 3584 service_enter_running(s, SERVICE_SUCCESS);
05e343b7
LP		 3585 else if (s->state == SERVICE_START && new_owner)
3586 service_enter_start_post(s);
3587
3588 } else if (new_owner &&
3589 s->main_pid <= 0 &&
3590 (s->state == SERVICE_START ||
3591 s->state == SERVICE_START_POST ||
3592 s->state == SERVICE_RUNNING ||
3593 s->state == SERVICE_RELOAD)) {
3594
3595 /* Try to acquire PID from bus service */
3596 log_debug("Trying to acquire PID from D-Bus name...");
3597
ac155bb8 3598 bus_query_pid(u->manager, name);
05e343b7
LP		 3599 }
3600}
3601
3602static void service_bus_query_pid_done(
3603 Unit *u,
3604 const char *name,
3605 pid_t pid) {
3606
3607 Service *s = SERVICE(u);
3608
3609 assert(s);
3610 assert(name);
3611
ac155bb8 3612 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
05e343b7
LP		 3613
3614 if (s->main_pid <= 0 &&
3615 (s->state == SERVICE_START ||
3616 s->state == SERVICE_START_POST ||
3617 s->state == SERVICE_RUNNING ||
3618 s->state == SERVICE_RELOAD))
5925dd3c 3619 service_set_main_pid(s, pid);
05e343b7
LP		 3620}
3621
6cf6bbc2 3622int service_set_socket_fd(Service *s, int fd, Socket *sock) {
57020a3a 3623
4f2d528d
LP		 3624 assert(s);
3625 assert(fd >= 0);
3626
3627 /* This is called by the socket code when instantiating a new
3628 * service for a stream socket and the socket needs to be
3629 * configured. */
3630
1124fe6f 3631 if (UNIT(s)->load_state != UNIT_LOADED)
4f2d528d
LP		 3632 return -EINVAL;
3633
3634 if (s->socket_fd >= 0)
3635 return -EBUSY;
3636
3637 if (s->state != SERVICE_DEAD)
3638 return -EAGAIN;
3639
3640 s->socket_fd = fd;
701cc384 3641 s->got_socket_fd = true;
6cf6bbc2 3642
57020a3a
LP		 3643 unit_ref_set(&s->accept_socket, UNIT(sock));
3644
3645 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
4f2d528d
LP		 3646}
3647
fdf20a31 3648static void service_reset_failed(Unit *u) {
5632e374
LP		 3649 Service *s = SERVICE(u);
3650
3651 assert(s);
3652
fdf20a31 3653 if (s->state == SERVICE_FAILED)
5632e374
LP		 3654 service_set_state(s, SERVICE_DEAD);
3655
f42806df
LP		 3656 s->result = SERVICE_SUCCESS;
3657 s->reload_result = SERVICE_SUCCESS;
5632e374
LP		 3658}
3659
8a0867d6
LP		 3660static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3661 Service *s = SERVICE(u);
3662 int r = 0;
3663 Set *pid_set = NULL;
3664
3665 assert(s);
3666
3667 if (s->main_pid <= 0 && who == KILL_MAIN) {
3668 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3669 return -ESRCH;
8a0867d6
LP		 3670 }
3671
3672 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3673 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3674 return -ESRCH;
8a0867d6
LP		 3675 }
3676
3611581e
LP		 3677 if (who == KILL_CONTROL || who == KILL_ALL)
3678 if (s->control_pid > 0)
3679 if (kill(s->control_pid, signo) < 0)
3680 r = -errno;
8a0867d6 3681
3611581e
LP		 3682 if (who == KILL_MAIN || who == KILL_ALL)
3683 if (s->main_pid > 0)
3684 if (kill(s->main_pid, signo) < 0)
3685 r = -errno;
8a0867d6 3686
3611581e 3687 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
8a0867d6
LP		 3688 int q;
3689
3690 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3691 return -ENOMEM;
3692
3693 /* Exclude the control/main pid from being killed via the cgroup */
3694 if (s->control_pid > 0)
3695 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3696 r = q;
3697 goto finish;
3698 }
3699
3700 if (s->main_pid > 0)
3701 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3702 r = q;
3703 goto finish;
3704 }
88f3e0c9 3705 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
ecedd90f 3706 if (q < 0)
3611581e 3707 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
8a0867d6
LP		 3708 r = q;
3709 }
3710
3711finish:
3712 if (pid_set)
3713 set_free(pid_set);
3714
3715 return r;
3716}
3717
94f04347
LP		 3718static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3719 [SERVICE_DEAD] = "dead",
3720 [SERVICE_START_PRE] = "start-pre",
3721 [SERVICE_START] = "start",
3722 [SERVICE_START_POST] = "start-post",
3723 [SERVICE_RUNNING] = "running",
80876c20 3724 [SERVICE_EXITED] = "exited",
94f04347
LP		 3725 [SERVICE_RELOAD] = "reload",
3726 [SERVICE_STOP] = "stop",
3727 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3728 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3729 [SERVICE_STOP_POST] = "stop-post",
3730 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3731 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3732 [SERVICE_FAILED] = "failed",
94f04347
LP		 3733 [SERVICE_AUTO_RESTART] = "auto-restart",
3734};
3735
3736DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3737
3738static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3739 [SERVICE_RESTART_NO] = "no",
3740 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3741 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3742 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3743 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3744};
3745
3746DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3747
3748static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3749 [SERVICE_SIMPLE] = "simple",
0d624a78 3750 [SERVICE_FORKING] = "forking",
34e9ba66 3751 [SERVICE_ONESHOT] = "oneshot",
8c47c732 3752 [SERVICE_DBUS] = "dbus",
f2b68789
LP		 3753 [SERVICE_NOTIFY] = "notify",
3754 [SERVICE_IDLE] = "idle"
94f04347
LP		 3755};
3756
3757DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3758
e537352b 3759static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3760 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3761 [SERVICE_EXEC_START] = "ExecStart",
3762 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3763 [SERVICE_EXEC_RELOAD] = "ExecReload",
3764 [SERVICE_EXEC_STOP] = "ExecStop",
3765 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3766};
3767
3768DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3769
c952c6ec
LP		 3770static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3771 [NOTIFY_NONE] = "none",
3772 [NOTIFY_MAIN] = "main",
3773 [NOTIFY_ALL] = "all"
3774};
3775
3776DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3777
f42806df
LP		 3778static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3779 [SERVICE_SUCCESS] = "success",
3780 [SERVICE_FAILURE_RESOURCES] = "resources",
3781 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3782 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3783 [SERVICE_FAILURE_SIGNAL] = "signal",
bb242b7b
MO		 3784 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3785 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
f42806df
LP		 3786};
3787
3788DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3789
4b939747
MO		 3790static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3791 [SERVICE_START_LIMIT_NONE] = "none",
3792 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3793 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3794 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3795};
3796DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3797
87f0e418 3798const UnitVTable service_vtable = {
5cb5a6ff 3799 .suffix = ".service",
7d17cfbc 3800 .object_size = sizeof(Service),
f975e971
LP		 3801 .sections =
3802 "Unit\0"
3803 "Service\0"
3804 "Install\0",
5cb5a6ff 3805
034c6ed7
LP		 3806 .init = service_init,
3807 .done = service_done,
a16e1123
LP		 3808 .load = service_load,
3809
3810 .coldplug = service_coldplug,
034c6ed7 3811
5cb5a6ff
LP		 3812 .dump = service_dump,
3813
3814 .start = service_start,
3815 .stop = service_stop,
3816 .reload = service_reload,
3817
034c6ed7
LP		 3818 .can_reload = service_can_reload,
3819
8a0867d6
LP		 3820 .kill = service_kill,
3821
a16e1123
LP		 3822 .serialize = service_serialize,
3823 .deserialize_item = service_deserialize_item,
3824
5cb5a6ff 3825 .active_state = service_active_state,
10a94420 3826 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3827
701cc384
LP		 3828 .check_gc = service_check_gc,
3829 .check_snapshot = service_check_snapshot,
3830
034c6ed7
LP		 3831 .sigchld_event = service_sigchld_event,
3832 .timer_event = service_timer_event,
3a111838 3833 .fd_event = service_fd_event,
2c4104f0 3834
fdf20a31 3835 .reset_failed = service_reset_failed,
5632e374 3836
8e274523 3837 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3838 .notify_message = service_notify_message,
8e274523 3839
05e343b7
LP		 3840 .bus_name_owner_change = service_bus_name_owner_change,
3841 .bus_query_pid_done = service_bus_query_pid_done,
3842
c4e2ceae 3843 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3844 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3845 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3846
07459bb6 3847#ifdef HAVE_SYSV_COMPAT
c6918296 3848 .enumerate = service_enumerate,
07459bb6 3849#endif
c6918296
MS		 3850 .status_message_formats = {
3851 .starting_stopping = {
3852 [0] = "Starting %s...",
3853 [1] = "Stopping %s...",
3854 },
3855 .finished_start_job = {
3856 [JOB_DONE] = "Started %s.",
3857 [JOB_FAILED] = "Failed to start %s.",
3858 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3859 [JOB_TIMEOUT] = "Timed out starting %s.",
3860 },
3861 .finished_stop_job = {
3862 [JOB_DONE] = "Stopped %s.",
3863 [JOB_FAILED] = "Stopped (with error) %s.",
3864 [JOB_TIMEOUT] = "Timed out stopping %s.",
3865 },
3866 },
5cb5a6ff 3867};
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