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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
5430f7f2
LP		 9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
a7334b09
LP		 11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5430f7f2 16 Lesser General Public License for more details.
a7334b09 17
5430f7f2 18 You should have received a copy of the GNU Lesser General Public License
a7334b09
LP		 19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
4b939747 26#include <sys/reboot.h>
5cb5a6ff 27
4b939747 28#include "manager.h"
87f0e418 29#include "unit.h"
5cb5a6ff
LP		 30#include "service.h"
31#include "load-fragment.h"
32#include "load-dropin.h"
034c6ed7 33#include "log.h"
2c4104f0 34#include "strv.h"
9e2f7c11 35#include "unit-name.h"
4139c1b2 36#include "dbus-service.h"
514f4ef5 37#include "special.h"
398ef8ba 38#include "bus-errors.h"
9a57c629 39#include "exit-status.h"
f6a6225e 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)
b7def684 725 d = strjoin(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)
b7def684 882 d = strjoin(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
b7def684 1004 path = strjoin(*p, "/", name, NULL);
44d91056 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
b7def684 1026 path = strjoin(*p, "/boot.", name, NULL);
44d91056 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
b7def684 1041 path = strjoin(*p, "/rc.", name, NULL);
44d91056 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;
e06c73cc
LP		 1285
1286 r = unit_patch_working_directory(UNIT(s), &s->exec_context);
1287 if (r < 0)
1288 return r;
8e274523
LP		 1289 }
1290
243b1432 1291 return service_verify(s);
034c6ed7
LP		 1292}
1293
87f0e418 1294static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1295
5cb5a6ff 1296 ServiceExecCommand c;
87f0e418 1297 Service *s = SERVICE(u);
47be870b
LP		 1298 const char *prefix2;
1299 char *p2;
5cb5a6ff
LP		 1300
1301 assert(s);
1302
47be870b
LP		 1303 p2 = strappend(prefix, "\t");
1304 prefix2 = p2 ? p2 : prefix;
44d8db9e 1305
5cb5a6ff 1306 fprintf(f,
81a2b7ce 1307 "%sService State: %s\n"
f42806df
LP		 1308 "%sResult: %s\n"
1309 "%sReload Result: %s\n"
81a2b7ce 1310 "%sPermissionsStartOnly: %s\n"
8e274523 1311 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1312 "%sRemainAfterExit: %s\n"
3185a36b 1313 "%sGuessMainPID: %s\n"
c952c6ec 1314 "%sType: %s\n"
2cf3143a 1315 "%sRestart: %s\n"
c952c6ec 1316 "%sNotifyAccess: %s\n",
81a2b7ce 1317 prefix, service_state_to_string(s->state),
f42806df
LP		 1318 prefix, service_result_to_string(s->result),
1319 prefix, service_result_to_string(s->reload_result),
81a2b7ce 1320 prefix, yes_no(s->permissions_start_only),
8e274523 1321 prefix, yes_no(s->root_directory_start_only),
02ee865a 1322 prefix, yes_no(s->remain_after_exit),
3185a36b 1323 prefix, yes_no(s->guess_main_pid),
c952c6ec 1324 prefix, service_type_to_string(s->type),
2cf3143a 1325 prefix, service_restart_to_string(s->restart),
c952c6ec 1326 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1327
70123e68
LP		 1328 if (s->control_pid > 0)
1329 fprintf(f,
bb00e604
LP		 1330 "%sControl PID: %lu\n",
1331 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1332
1333 if (s->main_pid > 0)
1334 fprintf(f,
6dfa5494
LP		 1335 "%sMain PID: %lu\n"
1336 "%sMain PID Known: %s\n"
1337 "%sMain PID Alien: %s\n",
1338 prefix, (unsigned long) s->main_pid,
1339 prefix, yes_no(s->main_pid_known),
1340 prefix, yes_no(s->main_pid_alien));
70123e68 1341
034c6ed7
LP		 1342 if (s->pid_file)
1343 fprintf(f,
1344 "%sPIDFile: %s\n",
1345 prefix, s->pid_file);
1346
05e343b7
LP		 1347 if (s->bus_name)
1348 fprintf(f,
1349 "%sBusName: %s\n"
1350 "%sBus Name Good: %s\n",
1351 prefix, s->bus_name,
1352 prefix, yes_no(s->bus_name_good));
1353
5cb5a6ff
LP		 1354 exec_context_dump(&s->exec_context, f, prefix);
1355
e537352b 1356 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1357
44d8db9e
LP		 1358 if (!s->exec_command[c])
1359 continue;
1360
40d50879 1361 fprintf(f, "%s-> %s:\n",
94f04347 1362 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1363
1364 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1365 }
44d8db9e 1366
07459bb6 1367#ifdef HAVE_SYSV_COMPAT
1b64d026 1368 if (s->is_sysv)
2c4104f0 1369 fprintf(f,
9fff8a1f
LP		 1370 "%sSysV Init Script has LSB Header: %s\n"
1371 "%sSysVEnabled: %s\n",
9fff8a1f
LP		 1372 prefix, yes_no(s->sysv_has_lsb),
1373 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1374
1375 if (s->sysv_start_priority >= 0)
1376 fprintf(f,
9fff8a1f
LP		 1377 "%sSysVStartPriority: %i\n",
1378 prefix, s->sysv_start_priority);
2c4104f0 1379
8309400a
LP		 1380 if (s->sysv_runlevels)
1381 fprintf(f, "%sSysVRunLevels: %s\n",
1382 prefix, s->sysv_runlevels);
07459bb6 1383#endif
23a177ef 1384
9fff8a1f
LP		 1385 if (s->fsck_passno > 0)
1386 fprintf(f,
1387 "%sFsckPassNo: %i\n",
1388 prefix, s->fsck_passno);
1389
8c47c732
LP		 1390 if (s->status_text)
1391 fprintf(f, "%sStatus Text: %s\n",
1392 prefix, s->status_text);
1393
47be870b 1394 free(p2);
5cb5a6ff
LP		 1395}
1396
c5419d42 1397static int service_load_pid_file(Service *s, bool may_warn) {
034c6ed7 1398 char *k;
034c6ed7 1399 int r;
5925dd3c 1400 pid_t pid;
034c6ed7
LP		 1401
1402 assert(s);
1403
034c6ed7 1404 if (!s->pid_file)
13230d5d 1405 return -ENOENT;
034c6ed7 1406
5375410b 1407 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
c5419d42 1408 if (may_warn)
3a111838
MS		 1409 log_info("PID file %s not readable (yet?) after %s.",
1410 s->pid_file, service_state_to_string(s->state));
034c6ed7 1411 return r;
5375410b 1412 }
034c6ed7 1413
5925dd3c
LP		 1414 r = parse_pid(k, &pid);
1415 free(k);
034c6ed7 1416
5925dd3c
LP		 1417 if (r < 0)
1418 return r;
406eaf93 1419
5925dd3c 1420 if (kill(pid, 0) < 0 && errno != EPERM) {
c5419d42 1421 if (may_warn)
3a111838
MS		 1422 log_info("PID %lu read from file %s does not exist.",
1423 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1424 return -ESRCH;
1425 }
1426
db01f8b3
MS		 1427 if (s->main_pid_known) {
1428 if (pid == s->main_pid)
1429 return 0;
1430
1431 log_debug("Main PID changing: %lu -> %lu",
1432 (unsigned long) s->main_pid, (unsigned long) pid);
1433 service_unwatch_main_pid(s);
1434 s->main_pid_known = false;
3a111838
MS		 1435 } else
1436 log_debug("Main PID loaded: %lu", (unsigned long) pid);
db01f8b3 1437
5925dd3c 1438 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1439 return r;
1440
5925dd3c
LP		 1441 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1442 /* FIXME: we need to do something here */
1443 return r;
034c6ed7
LP		 1444
1445 return 0;
1446}
1447
4fbf50b3
LP		 1448static int service_search_main_pid(Service *s) {
1449 pid_t pid;
1450 int r;
1451
1452 assert(s);
1453
3185a36b
LP		 1454 /* If we know it anyway, don't ever fallback to unreliable
1455 * heuristics */
4fbf50b3
LP		 1456 if (s->main_pid_known)
1457 return 0;
1458
3185a36b
LP		 1459 if (!s->guess_main_pid)
1460 return 0;
1461
4fbf50b3
LP		 1462 assert(s->main_pid <= 0);
1463
1124fe6f 1464 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
4fbf50b3
LP		 1465 return -ENOENT;
1466
3a111838 1467 log_debug("Main PID guessed: %lu", (unsigned long) pid);
4fbf50b3
LP		 1468 if ((r = service_set_main_pid(s, pid)) < 0)
1469 return r;
1470
1471 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1472 /* FIXME: we need to do something here */
1473 return r;
1474
1475 return 0;
1476}
1477
6bda96a0 1478static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
ceee3d82 1479 Iterator i;
57020a3a 1480 Unit *u;
3e33402a
LP		 1481
1482 assert(s);
1483
f976f3f6
LP		 1484 /* Notifies all our sockets when we die */
1485
6cf6bbc2 1486 if (s->socket_fd >= 0)
57020a3a 1487 return;
3e33402a 1488
1124fe6f 1489 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
ac155bb8 1490 if (u->type == UNIT_SOCKET)
6bda96a0 1491 socket_notify_service_dead(SOCKET(u), failed_permanent);
3e33402a 1492
57020a3a 1493 return;
ceee3d82
LP		 1494}
1495
034c6ed7
LP		 1496static void service_set_state(Service *s, ServiceState state) {
1497 ServiceState old_state;
e056b01d 1498 const UnitActiveState *table;
5cb5a6ff
LP		 1499 assert(s);
1500
e056b01d
LP		 1501 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1502
034c6ed7 1503 old_state = s->state;
5cb5a6ff 1504 s->state = state;
034c6ed7 1505
3a111838
MS		 1506 service_unwatch_pid_file(s);
1507
034c6ed7
LP		 1508 if (state != SERVICE_START_PRE &&
1509 state != SERVICE_START &&
1510 state != SERVICE_START_POST &&
1511 state != SERVICE_RELOAD &&
1512 state != SERVICE_STOP &&
1513 state != SERVICE_STOP_SIGTERM &&
1514 state != SERVICE_STOP_SIGKILL &&
1515 state != SERVICE_STOP_POST &&
1516 state != SERVICE_FINAL_SIGTERM &&
1517 state != SERVICE_FINAL_SIGKILL &&
1518 state != SERVICE_AUTO_RESTART)
acbb0225 1519 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1520
7d55e835
LP		 1521 if (state != SERVICE_START &&
1522 state != SERVICE_START_POST &&
034c6ed7
LP		 1523 state != SERVICE_RUNNING &&
1524 state != SERVICE_RELOAD &&
1525 state != SERVICE_STOP &&
1526 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1527 state != SERVICE_STOP_SIGKILL) {
5e94833f 1528 service_unwatch_main_pid(s);
867b3b7d
LP		 1529 s->main_command = NULL;
1530 }
034c6ed7
LP		 1531
1532 if (state != SERVICE_START_PRE &&
1533 state != SERVICE_START &&
1534 state != SERVICE_START_POST &&
1535 state != SERVICE_RELOAD &&
1536 state != SERVICE_STOP &&
1537 state != SERVICE_STOP_SIGTERM &&
1538 state != SERVICE_STOP_SIGKILL &&
1539 state != SERVICE_STOP_POST &&
1540 state != SERVICE_FINAL_SIGTERM &&
e537352b 1541 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1542 service_unwatch_control_pid(s);
034c6ed7 1543 s->control_command = NULL;
a16e1123 1544 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1545 }
034c6ed7 1546
ceee3d82
LP		 1547 if (state == SERVICE_DEAD ||
1548 state == SERVICE_STOP ||
1549 state == SERVICE_STOP_SIGTERM ||
1550 state == SERVICE_STOP_SIGKILL ||
1551 state == SERVICE_STOP_POST ||
1552 state == SERVICE_FINAL_SIGTERM ||
1553 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1554 state == SERVICE_FAILED ||
ceee3d82 1555 state == SERVICE_AUTO_RESTART)
c2f34808 1556 service_notify_sockets_dead(s, false);
ceee3d82 1557
4f2d528d
LP		 1558 if (state != SERVICE_START_PRE &&
1559 state != SERVICE_START &&
6cf6bbc2
LP		 1560 state != SERVICE_START_POST &&
1561 state != SERVICE_RUNNING &&
1562 state != SERVICE_RELOAD &&
1563 state != SERVICE_STOP &&
1564 state != SERVICE_STOP_SIGTERM &&
1565 state != SERVICE_STOP_SIGKILL &&
1566 state != SERVICE_STOP_POST &&
1567 state != SERVICE_FINAL_SIGTERM &&
1568 state != SERVICE_FINAL_SIGKILL &&
1124fe6f 1569 !(state == SERVICE_DEAD && UNIT(s)->job)) {
4f2d528d 1570 service_close_socket_fd(s);
6cf6bbc2
LP		 1571 service_connection_unref(s);
1572 }
4f2d528d 1573
a6927d7f
MO		 1574 if (state == SERVICE_STOP)
1575 service_stop_watchdog(s);
1576
f6023656
LP		 1577 /* For the inactive states unit_notify() will trim the cgroup,
1578 * but for exit we have to do that ourselves... */
1124fe6f
MS		 1579 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1580 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
f6023656 1581
e537352b 1582 if (old_state != state)
1124fe6f 1583 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1584
e056b01d 1585 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
f42806df 1586 s->reload_result = SERVICE_SUCCESS;
034c6ed7
LP		 1587}
1588
a16e1123
LP		 1589static int service_coldplug(Unit *u) {
1590 Service *s = SERVICE(u);
1591 int r;
1592
1593 assert(s);
1594 assert(s->state == SERVICE_DEAD);
1595
1596 if (s->deserialized_state != s->state) {
1597
1598 if (s->deserialized_state == SERVICE_START_PRE ||
1599 s->deserialized_state == SERVICE_START ||
1600 s->deserialized_state == SERVICE_START_POST ||
1601 s->deserialized_state == SERVICE_RELOAD ||
1602 s->deserialized_state == SERVICE_STOP ||
1603 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1604 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1605 s->deserialized_state == SERVICE_STOP_POST ||
1606 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1607 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1608 s->deserialized_state == SERVICE_AUTO_RESTART) {
1609
1610 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1611 usec_t k;
1612
1613 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1614
1615 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1616 return r;
1617 }
1618 }
a16e1123
LP		 1619
1620 if ((s->deserialized_state == SERVICE_START &&
1621 (s->type == SERVICE_FORKING ||
8c47c732 1622 s->type == SERVICE_DBUS ||
34e9ba66 1623 s->type == SERVICE_ONESHOT ||
8c47c732 1624 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1625 s->deserialized_state == SERVICE_START_POST ||
1626 s->deserialized_state == SERVICE_RUNNING ||
1627 s->deserialized_state == SERVICE_RELOAD ||
1628 s->deserialized_state == SERVICE_STOP ||
1629 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1630 s->deserialized_state == SERVICE_STOP_SIGKILL)
1631 if (s->main_pid > 0)
1632 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1633 return r;
1634
1635 if (s->deserialized_state == SERVICE_START_PRE ||
1636 s->deserialized_state == SERVICE_START ||
1637 s->deserialized_state == SERVICE_START_POST ||
1638 s->deserialized_state == SERVICE_RELOAD ||
1639 s->deserialized_state == SERVICE_STOP ||
1640 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1641 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1642 s->deserialized_state == SERVICE_STOP_POST ||
1643 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1644 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1645 if (s->control_pid > 0)
1646 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1647 return r;
1648
bb242b7b
MO		 1649 if (s->deserialized_state == SERVICE_START_POST ||
1650 s->deserialized_state == SERVICE_RUNNING)
1651 service_handle_watchdog(s);
1652
a16e1123
LP		 1653 service_set_state(s, s->deserialized_state);
1654 }
a16e1123
LP		 1655 return 0;
1656}
1657
44d8db9e
LP		 1658static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1659 Iterator i;
1660 int r;
1661 int *rfds = NULL;
1662 unsigned rn_fds = 0;
57020a3a 1663 Unit *u;
44d8db9e
LP		 1664
1665 assert(s);
1666 assert(fds);
1667 assert(n_fds);
1668
6cf6bbc2
LP		 1669 if (s->socket_fd >= 0)
1670 return 0;
1671
1124fe6f 1672 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
44d8db9e
LP		 1673 int *cfds;
1674 unsigned cn_fds;
57020a3a
LP		 1675 Socket *sock;
1676
ac155bb8 1677 if (u->type != UNIT_SOCKET)
57020a3a
LP		 1678 continue;
1679
1680 sock = SOCKET(u);
44d8db9e 1681
47be870b 1682 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1683 goto fail;
1684
1685 if (!cfds)
1686 continue;
1687
1688 if (!rfds) {
1689 rfds = cfds;
1690 rn_fds = cn_fds;
1691 } else {
1692 int *t;
1693
1694 if (!(t = new(int, rn_fds+cn_fds))) {
1695 free(cfds);
1696 r = -ENOMEM;
1697 goto fail;
1698 }
1699
9c1b183c
LP		 1700 memcpy(t, rfds, rn_fds * sizeof(int));
1701 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1702 free(rfds);
1703 free(cfds);
1704
1705 rfds = t;
1706 rn_fds = rn_fds+cn_fds;
1707 }
1708 }
1709
1710 *fds = rfds;
1711 *n_fds = rn_fds;
3e33402a 1712
44d8db9e
LP		 1713 return 0;
1714
1715fail:
1716 free(rfds);
3e33402a 1717
44d8db9e
LP		 1718 return r;
1719}
1720
81a2b7ce
LP		 1721static int service_spawn(
1722 Service *s,
1723 ExecCommand *c,
1724 bool timeout,
1725 bool pass_fds,
1726 bool apply_permissions,
1727 bool apply_chroot,
1e3ad081 1728 bool apply_tty_stdin,
c952c6ec 1729 bool set_notify_socket,
ecedd90f 1730 bool is_control,
81a2b7ce
LP		 1731 pid_t *_pid) {
1732
034c6ed7
LP		 1733 pid_t pid;
1734 int r;
6cf6bbc2 1735 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1736 unsigned n_fds = 0, n_env = 0;
1737 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1738
1739 assert(s);
1740 assert(c);
1741 assert(_pid);
1742
6cf6bbc2
LP		 1743 if (pass_fds ||
1744 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1745 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1746 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1747
4f2d528d
LP		 1748 if (s->socket_fd >= 0) {
1749 fds = &s->socket_fd;
1750 n_fds = 1;
6cf6bbc2
LP		 1751 } else {
1752 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1753 goto fail;
1754
1755 fds = fdsbuf;
1756 }
4f2d528d 1757 }
44d8db9e 1758
e558336f 1759 if (timeout && s->timeout_usec) {
acbb0225 1760 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1761 goto fail;
1762 } else
acbb0225 1763 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1764
9e2f7c11
LP		 1765 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1766 r = -ENOMEM;
1767 goto fail;
1768 }
1769
9865f3b4 1770 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1771 r = -ENOMEM;
1772 goto fail;
1773 }
c952c6ec 1774
2105e76a 1775 if (set_notify_socket)
1124fe6f 1776 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
c952c6ec
LP		 1777 r = -ENOMEM;
1778 goto fail;
1779 }
1780
2105e76a
LP		 1781 if (s->main_pid > 0)
1782 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1783 r = -ENOMEM;
1784 goto fail;
1785 }
2105e76a 1786
6e0bcc98
MO		 1787 if (s->watchdog_usec > 0)
1788 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1789 r = -ENOMEM;
1790 goto fail;
1791 }
1792
2105e76a 1793 if (!(final_env = strv_env_merge(2,
1124fe6f 1794 UNIT(s)->manager->environment,
2105e76a
LP		 1795 our_env,
1796 NULL))) {
1797 r = -ENOMEM;
1798 goto fail;
1799 }
c952c6ec 1800
9e2f7c11
LP		 1801 r = exec_spawn(c,
1802 argv,
1803 &s->exec_context,
1804 fds, n_fds,
2105e76a 1805 final_env,
9e2f7c11
LP		 1806 apply_permissions,
1807 apply_chroot,
1e3ad081 1808 apply_tty_stdin,
1124fe6f
MS		 1809 UNIT(s)->manager->confirm_spawn,
1810 UNIT(s)->cgroup_bondings,
1811 UNIT(s)->cgroup_attributes,
ecedd90f 1812 is_control ? "control" : NULL,
62bca2c6 1813 UNIT(s)->id,
f2b68789 1814 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
9e2f7c11
LP		 1815 &pid);
1816
9e2f7c11 1817 if (r < 0)
034c6ed7
LP		 1818 goto fail;
1819
4f2d528d 1820
87f0e418 1821 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1822 /* FIXME: we need to do something here */
1823 goto fail;
1824
2105e76a
LP		 1825 free(fdsbuf);
1826 strv_free(argv);
1827 strv_free(our_env);
1828 strv_free(final_env);
1829
034c6ed7
LP		 1830 *_pid = pid;
1831
5cb5a6ff 1832 return 0;
034c6ed7
LP		 1833
1834fail:
2105e76a 1835 free(fdsbuf);
c952c6ec 1836 strv_free(argv);
2105e76a
LP		 1837 strv_free(our_env);
1838 strv_free(final_env);
c952c6ec 1839
034c6ed7 1840 if (timeout)
acbb0225 1841 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1842
1843 return r;
1844}
1845
80876c20
LP		 1846static int main_pid_good(Service *s) {
1847 assert(s);
1848
1849 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1850 * don't know */
1851
1852 /* If we know the pid file, then lets just check if it is
1853 * still valid */
6dfa5494
LP		 1854 if (s->main_pid_known) {
1855
1856 /* If it's an alien child let's check if it is still
1857 * alive ... */
1858 if (s->main_pid_alien)
1859 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1860
1861 /* .. otherwise assume we'll get a SIGCHLD for it,
1862 * which we really should wait for to collect exit
1863 * status and code */
80876c20 1864 return s->main_pid > 0;
6dfa5494 1865 }
80876c20
LP		 1866
1867 /* We don't know the pid */
1868 return -EAGAIN;
1869}
1870
1871static int control_pid_good(Service *s) {
1872 assert(s);
1873
1874 return s->control_pid > 0;
1875}
1876
1877static int cgroup_good(Service *s) {
1878 int r;
1879
1880 assert(s);
1881
1124fe6f 1882 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
80876c20
LP		 1883 return r;
1884
1885 return !r;
1886}
1887
f42806df 1888static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
034c6ed7
LP		 1889 int r;
1890 assert(s);
1891
f42806df
LP		 1892 if (f != SERVICE_SUCCESS)
1893 s->result = f;
034c6ed7 1894
0c7f15b3
MS		 1895 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1896
034c6ed7 1897 if (allow_restart &&
47342320 1898 !s->forbid_restart &&
034c6ed7 1899 (s->restart == SERVICE_RESTART_ALWAYS ||
f42806df
LP		 1900 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1901 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1902 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1903 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
034c6ed7 1904
f42806df
LP		 1905 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1906 if (r < 0)
034c6ed7
LP		 1907 goto fail;
1908
1909 service_set_state(s, SERVICE_AUTO_RESTART);
0c7f15b3 1910 }
034c6ed7 1911
47342320
LP		 1912 s->forbid_restart = false;
1913
034c6ed7
LP		 1914 return;
1915
1916fail:
1124fe6f 1917 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
f42806df 1918 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
034c6ed7
LP		 1919}
1920
f42806df 1921static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
034c6ed7 1922
f42806df 1923static void service_enter_stop_post(Service *s, ServiceResult f) {
034c6ed7
LP		 1924 int r;
1925 assert(s);
1926
f42806df
LP		 1927 if (f != SERVICE_SUCCESS)
1928 s->result = f;
034c6ed7 1929
5e94833f
LP		 1930 service_unwatch_control_pid(s);
1931
80876c20 1932 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1933 s->control_command_id = SERVICE_EXEC_STOP_POST;
1934
ecedd90f
LP		 1935 r = service_spawn(s,
1936 s->control_command,
1937 true,
1938 false,
1939 !s->permissions_start_only,
1940 !s->root_directory_start_only,
1941 true,
1942 false,
1943 true,
1944 &s->control_pid);
1945 if (r < 0)
034c6ed7
LP		 1946 goto fail;
1947
d6ea93e3 1948
80876c20
LP		 1949 service_set_state(s, SERVICE_STOP_POST);
1950 } else
f42806df 1951 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 1952
1953 return;
1954
1955fail:
1124fe6f 1956 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 1957 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 1958}
1959
f42806df 1960static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
034c6ed7 1961 int r;
ca949c9d
LP		 1962 Set *pid_set = NULL;
1963 bool wait_for_exit = false;
034c6ed7
LP		 1964
1965 assert(s);
1966
f42806df
LP		 1967 if (f != SERVICE_SUCCESS)
1968 s->result = f;
034c6ed7 1969
2e22afe9
LP		 1970 if (s->exec_context.kill_mode != KILL_NONE) {
1971 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1972
ca949c9d 1973 if (s->main_pid > 0) {
cd25cce9 1974 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1975 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1976 else
6dfa5494 1977 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1978 }
1979
ca949c9d 1980 if (s->control_pid > 0) {
cd25cce9 1981 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1982 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1983 else
1984 wait_for_exit = true;
1985 }
50159e6a 1986
ca949c9d 1987 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1988
ca949c9d
LP		 1989 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1990 r = -ENOMEM;
50159e6a 1991 goto fail;
ca949c9d
LP		 1992 }
1993
1994 /* Exclude the main/control pids from being killed via the cgroup */
1995 if (s->main_pid > 0)
1996 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1997 goto fail;
1998
1999 if (s->control_pid > 0)
2000 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
2001 goto fail;
2002
88f3e0c9 2003 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
ecedd90f 2004 if (r < 0) {
ca949c9d
LP		 2005 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2006 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 2007 } else if (r > 0)
ca949c9d
LP		 2008 wait_for_exit = true;
2009
2010 set_free(pid_set);
da19d5c1 2011 pid_set = NULL;
50159e6a 2012 }
d6ea93e3 2013 }
034c6ed7 2014
ca949c9d 2015 if (wait_for_exit) {
e558336f
LP		 2016 if (s->timeout_usec > 0)
2017 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
2018 goto fail;
d6ea93e3 2019
80876c20
LP		 2020 service_set_state(s, state);
2021 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 2022 service_enter_stop_post(s, SERVICE_SUCCESS);
80876c20 2023 else
f42806df 2024 service_enter_dead(s, SERVICE_SUCCESS, true);
034c6ed7
LP		 2025
2026 return;
2027
2028fail:
1124fe6f 2029 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2030
80876c20 2031 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
f42806df 2032 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
034c6ed7 2033 else
f42806df 2034 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
ca949c9d
LP		 2035
2036 if (pid_set)
2037 set_free(pid_set);
034c6ed7
LP		 2038}
2039
f42806df 2040static void service_enter_stop(Service *s, ServiceResult f) {
034c6ed7 2041 int r;
5925dd3c 2042
034c6ed7
LP		 2043 assert(s);
2044
f42806df
LP		 2045 if (f != SERVICE_SUCCESS)
2046 s->result = f;
034c6ed7 2047
5e94833f
LP		 2048 service_unwatch_control_pid(s);
2049
80876c20 2050 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 2051 s->control_command_id = SERVICE_EXEC_STOP;
2052
ecedd90f
LP		 2053 r = service_spawn(s,
2054 s->control_command,
2055 true,
2056 false,
2057 !s->permissions_start_only,
2058 !s->root_directory_start_only,
2059 false,
2060 false,
2061 true,
2062 &s->control_pid);
2063 if (r < 0)
034c6ed7
LP		 2064 goto fail;
2065
80876c20
LP		 2066 service_set_state(s, SERVICE_STOP);
2067 } else
f42806df 2068 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
034c6ed7
LP		 2069
2070 return;
2071
2072fail:
1124fe6f 2073 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2074 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2075}
2076
f42806df 2077static void service_enter_running(Service *s, ServiceResult f) {
4eab639f 2078 int main_pid_ok, cgroup_ok;
80876c20
LP		 2079 assert(s);
2080
f42806df
LP		 2081 if (f != SERVICE_SUCCESS)
2082 s->result = f;
80876c20 2083
4eab639f
LP		 2084 main_pid_ok = main_pid_good(s);
2085 cgroup_ok = cgroup_good(s);
2086
2087 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 2088 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 2089 service_set_state(s, SERVICE_RUNNING);
02ee865a 2090 else if (s->remain_after_exit)
80876c20
LP		 2091 service_set_state(s, SERVICE_EXITED);
2092 else
f42806df 2093 service_enter_stop(s, SERVICE_SUCCESS);
80876c20
LP		 2094}
2095
034c6ed7
LP		 2096static void service_enter_start_post(Service *s) {
2097 int r;
2098 assert(s);
2099
5e94833f
LP		 2100 service_unwatch_control_pid(s);
2101
bb242b7b
MO		 2102 if (s->watchdog_usec > 0)
2103 service_reset_watchdog(s);
2104
80876c20 2105 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2106 s->control_command_id = SERVICE_EXEC_START_POST;
2107
ecedd90f
LP		 2108 r = service_spawn(s,
2109 s->control_command,
2110 true,
2111 false,
2112 !s->permissions_start_only,
2113 !s->root_directory_start_only,
2114 false,
2115 false,
2116 true,
2117 &s->control_pid);
2118 if (r < 0)
034c6ed7
LP		 2119 goto fail;
2120
80876c20
LP		 2121 service_set_state(s, SERVICE_START_POST);
2122 } else
f42806df 2123 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2124
2125 return;
2126
2127fail:
1124fe6f 2128 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2129 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2130}
2131
2132static void service_enter_start(Service *s) {
2133 pid_t pid;
2134 int r;
867b3b7d 2135 ExecCommand *c;
034c6ed7
LP		 2136
2137 assert(s);
2138
2139 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2140 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2141
80876c20
LP		 2142 if (s->type == SERVICE_FORKING)
2143 service_unwatch_control_pid(s);
2144 else
2145 service_unwatch_main_pid(s);
2146
8f53a7b8
LP		 2147 /* We want to ensure that nobody leaks processes from
2148 * START_PRE here, so let's go on a killing spree, People
2149 * should not spawn long running processes from START_PRE. */
88f3e0c9 2150 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
8f53a7b8 2151
867b3b7d
LP		 2152 if (s->type == SERVICE_FORKING) {
2153 s->control_command_id = SERVICE_EXEC_START;
2154 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2155
2156 s->main_command = NULL;
2157 } else {
2158 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2159 s->control_command = NULL;
2160
2161 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2162 }
34e9ba66 2163
ecedd90f
LP		 2164 r = service_spawn(s,
2165 c,
98709151 2166 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
ecedd90f
LP		 2167 true,
2168 true,
2169 true,
2170 true,
2171 s->notify_access != NOTIFY_NONE,
2172 false,
2173 &pid);
2174 if (r < 0)
034c6ed7
LP		 2175 goto fail;
2176
f2b68789 2177 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
034c6ed7
LP		 2178 /* For simple services we immediately start
2179 * the START_POST binaries. */
2180
5925dd3c 2181 service_set_main_pid(s, pid);
034c6ed7
LP		 2182 service_enter_start_post(s);
2183
2184 } else if (s->type == SERVICE_FORKING) {
2185
2186 /* For forking services we wait until the start
2187 * process exited. */
2188
e55224ca 2189 s->control_pid = pid;
80876c20
LP		 2190 service_set_state(s, SERVICE_START);
2191
34e9ba66 2192 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2193 s->type == SERVICE_DBUS ||
2194 s->type == SERVICE_NOTIFY) {
7d55e835 2195
34e9ba66 2196 /* For oneshot services we wait until the start
7d55e835
LP		 2197 * process exited, too, but it is our main process. */
2198
05e343b7 2199 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2200 * but wait for the bus name to appear on the
2201 * bus. Notify services are similar. */
05e343b7 2202
5925dd3c 2203 service_set_main_pid(s, pid);
80876c20 2204 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2205 } else
2206 assert_not_reached("Unknown service type");
2207
2208 return;
2209
2210fail:
1124fe6f 2211 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2212 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7
LP		 2213}
2214
2215static void service_enter_start_pre(Service *s) {
2216 int r;
2217
2218 assert(s);
2219
5e94833f
LP		 2220 service_unwatch_control_pid(s);
2221
80876c20 2222 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
8f53a7b8
LP		 2223
2224 /* Before we start anything, let's clear up what might
2225 * be left from previous runs. */
88f3e0c9 2226 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
8f53a7b8 2227
867b3b7d
LP		 2228 s->control_command_id = SERVICE_EXEC_START_PRE;
2229
ecedd90f
LP		 2230 r = service_spawn(s,
2231 s->control_command,
2232 true,
2233 false,
2234 !s->permissions_start_only,
2235 !s->root_directory_start_only,
2236 true,
2237 false,
2238 true,
2239 &s->control_pid);
2240 if (r < 0)
034c6ed7
LP		 2241 goto fail;
2242
80876c20
LP		 2243 service_set_state(s, SERVICE_START_PRE);
2244 } else
034c6ed7
LP		 2245 service_enter_start(s);
2246
2247 return;
2248
2249fail:
1124fe6f 2250 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
f42806df 2251 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
034c6ed7
LP		 2252}
2253
2254static void service_enter_restart(Service *s) {
2255 int r;
398ef8ba
LP		 2256 DBusError error;
2257
034c6ed7 2258 assert(s);
398ef8ba 2259 dbus_error_init(&error);
034c6ed7 2260
a8bb2e65
LP		 2261 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2262 /* Don't restart things if we are going down anyway */
2263 log_info("Stop job pending for unit, delaying automatic restart.");
2edfa366 2264
a8bb2e65
LP		 2265 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
2266 if (r < 0)
2edfa366 2267 goto fail;
feae8adb
DW		 2268
2269 return;
2edfa366
LP		 2270 }
2271
48bb5876
DW		 2272 /* Any units that are bound to this service must also be
2273 * restarted. We use JOB_RESTART (instead of the more obvious
2274 * JOB_START) here so that those dependency jobs will be added
2275 * as well. */
2276 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2277 if (r < 0)
034c6ed7
LP		 2278 goto fail;
2279
a8bb2e65
LP		 2280 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2281 * it will be canceled as part of the service_stop() call that
2282 * is executed as part of JOB_RESTART. */
2283
1124fe6f 2284 log_debug("%s scheduled restart job.", UNIT(s)->id);
034c6ed7
LP		 2285 return;
2286
2287fail:
1124fe6f 2288 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
f42806df 2289 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
398ef8ba
LP		 2290
2291 dbus_error_free(&error);
034c6ed7
LP		 2292}
2293
2294static void service_enter_reload(Service *s) {
2295 int r;
2296
2297 assert(s);
2298
5e94833f
LP		 2299 service_unwatch_control_pid(s);
2300
80876c20 2301 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2302 s->control_command_id = SERVICE_EXEC_RELOAD;
2303
ecedd90f
LP		 2304 r = service_spawn(s,
2305 s->control_command,
2306 true,
2307 false,
2308 !s->permissions_start_only,
2309 !s->root_directory_start_only,
2310 false,
2311 false,
2312 true,
2313 &s->control_pid);
2314 if (r < 0)
034c6ed7
LP		 2315 goto fail;
2316
80876c20
LP		 2317 service_set_state(s, SERVICE_RELOAD);
2318 } else
f42806df 2319 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2320
2321 return;
2322
2323fail:
1124fe6f 2324 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
f42806df
LP		 2325 s->reload_result = SERVICE_FAILURE_RESOURCES;
2326 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 2327}
2328
f42806df 2329static void service_run_next_control(Service *s) {
034c6ed7
LP		 2330 int r;
2331
2332 assert(s);
2333 assert(s->control_command);
2334 assert(s->control_command->command_next);
2335
34e9ba66 2336 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2337
34e9ba66 2338 s->control_command = s->control_command->command_next;
5e94833f
LP		 2339 service_unwatch_control_pid(s);
2340
ecedd90f
LP		 2341 r = service_spawn(s,
2342 s->control_command,
2343 true,
2344 false,
2345 !s->permissions_start_only,
2346 !s->root_directory_start_only,
2347 s->control_command_id == SERVICE_EXEC_START_PRE ||
2348 s->control_command_id == SERVICE_EXEC_STOP_POST,
2349 false,
2350 true,
2351 &s->control_pid);
2352 if (r < 0)
034c6ed7
LP		 2353 goto fail;
2354
2355 return;
2356
2357fail:
1124fe6f 2358 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
034c6ed7 2359
80876c20 2360 if (s->state == SERVICE_START_PRE)
f42806df 2361 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
80876c20 2362 else if (s->state == SERVICE_STOP)
f42806df 2363 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
034c6ed7 2364 else if (s->state == SERVICE_STOP_POST)
f42806df 2365 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
e2f3b44c 2366 else if (s->state == SERVICE_RELOAD) {
f42806df
LP		 2367 s->reload_result = SERVICE_FAILURE_RESOURCES;
2368 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c 2369 } else
f42806df 2370 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
5cb5a6ff
LP		 2371}
2372
f42806df 2373static void service_run_next_main(Service *s) {
34e9ba66
LP		 2374 pid_t pid;
2375 int r;
2376
2377 assert(s);
867b3b7d
LP		 2378 assert(s->main_command);
2379 assert(s->main_command->command_next);
2380 assert(s->type == SERVICE_ONESHOT);
34e9ba66 2381
867b3b7d 2382 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2383 service_unwatch_main_pid(s);
2384
ecedd90f
LP		 2385 r = service_spawn(s,
2386 s->main_command,
98709151 2387 true,
ecedd90f
LP		 2388 true,
2389 true,
2390 true,
2391 true,
2392 s->notify_access != NOTIFY_NONE,
2393 false,
2394 &pid);
2395 if (r < 0)
34e9ba66
LP		 2396 goto fail;
2397
2398 service_set_main_pid(s, pid);
2399
2400 return;
2401
2402fail:
1124fe6f 2403 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
f42806df 2404 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
34e9ba66
LP		 2405}
2406
4b939747
MO		 2407static int service_start_limit_test(Service *s) {
2408 assert(s);
2409
2410 if (ratelimit_test(&s->start_limit))
2411 return 0;
2412
2413 switch (s->start_limit_action) {
2414
2415 case SERVICE_START_LIMIT_NONE:
2416 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2417 break;
2418
2419 case SERVICE_START_LIMIT_REBOOT: {
2420 DBusError error;
2421 int r;
2422
2423 dbus_error_init(&error);
2424
2425 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2426
2427 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2428 if (r < 0) {
2429 log_error("Failed to reboot: %s.", bus_error(&error, r));
2430 dbus_error_free(&error);
2431 }
2432
2433 break;
2434 }
2435
2436 case SERVICE_START_LIMIT_REBOOT_FORCE:
6bda96a0 2437 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
4b939747
MO		 2438 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2439 break;
2440
2441 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2442 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2443 reboot(RB_AUTOBOOT);
2444 break;
2445
2446 default:
2447 log_error("start limit action=%i", s->start_limit_action);
2448 assert_not_reached("Unknown StartLimitAction.");
2449 }
2450
2451 return -ECANCELED;
2452}
2453
87f0e418
LP		 2454static int service_start(Unit *u) {
2455 Service *s = SERVICE(u);
4b939747 2456 int r;
5cb5a6ff
LP		 2457
2458 assert(s);
2459
034c6ed7
LP		 2460 /* We cannot fulfill this request right now, try again later
2461 * please! */
2462 if (s->state == SERVICE_STOP ||
2463 s->state == SERVICE_STOP_SIGTERM ||
2464 s->state == SERVICE_STOP_SIGKILL ||
2465 s->state == SERVICE_STOP_POST ||
2466 s->state == SERVICE_FINAL_SIGTERM ||
2467 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2468 return -EAGAIN;
2469
034c6ed7
LP		 2470 /* Already on it! */
2471 if (s->state == SERVICE_START_PRE ||
2472 s->state == SERVICE_START ||
2473 s->state == SERVICE_START_POST)
2474 return 0;
2475
2e9d6c12 2476 /* A service that will be restarted must be stopped first to
7f2cddae 2477 * trigger BindsTo and/or OnFailure dependencies. If a user
2e9d6c12 2478 * does not want to wait for the holdoff time to elapse, the
d4943dc7
LP		 2479 * service should be manually restarted, not started. We
2480 * simply return EAGAIN here, so that any start jobs stay
2481 * queued, and assume that the auto restart timer will
2482 * eventually trigger the restart. */
2483 if (s->state == SERVICE_AUTO_RESTART)
a8bb2e65 2484 return -EAGAIN;
2e9d6c12
DW		 2485
2486 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
5cb5a6ff 2487
1e2e8133 2488 /* Make sure we don't enter a busy loop of some kind. */
4b939747 2489 r = service_start_limit_test(s);
c2f34808
MS		 2490 if (r < 0) {
2491 service_notify_sockets_dead(s, true);
4b939747 2492 return r;
c2f34808 2493 }
1e2e8133 2494
f42806df
LP		 2495 s->result = SERVICE_SUCCESS;
2496 s->reload_result = SERVICE_SUCCESS;
034c6ed7 2497 s->main_pid_known = false;
6dfa5494 2498 s->main_pid_alien = false;
47342320 2499 s->forbid_restart = false;
034c6ed7
LP		 2500
2501 service_enter_start_pre(s);
2502 return 0;
5cb5a6ff
LP		 2503}
2504
87f0e418
LP		 2505static int service_stop(Unit *u) {
2506 Service *s = SERVICE(u);
5cb5a6ff
LP		 2507
2508 assert(s);
2509
f0c7b229 2510 /* Don't create restart jobs from here. */
47342320 2511 s->forbid_restart = true;
034c6ed7 2512
e537352b
LP		 2513 /* Already on it */
2514 if (s->state == SERVICE_STOP ||
2515 s->state == SERVICE_STOP_SIGTERM ||
2516 s->state == SERVICE_STOP_SIGKILL ||
2517 s->state == SERVICE_STOP_POST ||
2518 s->state == SERVICE_FINAL_SIGTERM ||
2519 s->state == SERVICE_FINAL_SIGKILL)
2520 return 0;
2521
f0c7b229 2522 /* A restart will be scheduled or is in progress. */
034c6ed7 2523 if (s->state == SERVICE_AUTO_RESTART) {
0c7f15b3 2524 service_set_state(s, SERVICE_DEAD);
034c6ed7
LP		 2525 return 0;
2526 }
2527
3f6c78dc
LP		 2528 /* If there's already something running we go directly into
2529 * kill mode. */
2530 if (s->state == SERVICE_START_PRE ||
2531 s->state == SERVICE_START ||
2532 s->state == SERVICE_START_POST ||
2533 s->state == SERVICE_RELOAD) {
f42806df 2534 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
3f6c78dc
LP		 2535 return 0;
2536 }
5cb5a6ff 2537
3f6c78dc
LP		 2538 assert(s->state == SERVICE_RUNNING ||
2539 s->state == SERVICE_EXITED);
3a762661 2540
f42806df 2541 service_enter_stop(s, SERVICE_SUCCESS);
5cb5a6ff
LP		 2542 return 0;
2543}
2544
87f0e418
LP		 2545static int service_reload(Unit *u) {
2546 Service *s = SERVICE(u);
034c6ed7
LP		 2547
2548 assert(s);
2549
80876c20 2550 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2551
2552 service_enter_reload(s);
5cb5a6ff
LP		 2553 return 0;
2554}
2555
87f0e418
LP		 2556static bool service_can_reload(Unit *u) {
2557 Service *s = SERVICE(u);
034c6ed7
LP		 2558
2559 assert(s);
2560
2561 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2562}
2563
a16e1123
LP		 2564static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2565 Service *s = SERVICE(u);
2566
2567 assert(u);
2568 assert(f);
2569 assert(fds);
2570
2571 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
f42806df
LP		 2572 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2573 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
a16e1123
LP		 2574
2575 if (s->control_pid > 0)
5925dd3c 2576 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2577
5925dd3c
LP		 2578 if (s->main_pid_known && s->main_pid > 0)
2579 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2580
2581 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2582
3a2776bc
LP		 2583 if (s->status_text)
2584 unit_serialize_item(u, f, "status-text", s->status_text);
2585
cfc4eb4c
LP		 2586 /* FIXME: There's a minor uncleanliness here: if there are
2587 * multiple commands attached here, we will start from the
2588 * first one again */
a16e1123 2589 if (s->control_command_id >= 0)
825636e5 2590 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2591
2592 if (s->socket_fd >= 0) {
2593 int copy;
2594
2595 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2596 return copy;
2597
2598 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2599 }
2600
ecdbca40
LP		 2601 if (s->main_exec_status.pid > 0) {
2602 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2603 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2604 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2605
799fd0fd 2606 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2607 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2608 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2609 }
2610 }
a6927d7f
MO		 2611 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2612 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
ecdbca40 2613
a16e1123
LP		 2614 return 0;
2615}
2616
2617static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2618 Service *s = SERVICE(u);
a16e1123
LP		 2619
2620 assert(u);
2621 assert(key);
2622 assert(value);
2623 assert(fds);
2624
2625 if (streq(key, "state")) {
2626 ServiceState state;
2627
2628 if ((state = service_state_from_string(value)) < 0)
2629 log_debug("Failed to parse state value %s", value);
2630 else
2631 s->deserialized_state = state;
f42806df
LP		 2632 } else if (streq(key, "result")) {
2633 ServiceResult f;
2634
2635 f = service_result_from_string(value);
2636 if (f < 0)
2637 log_debug("Failed to parse result value %s", value);
2638 else if (f != SERVICE_SUCCESS)
2639 s->result = f;
2640
2641 } else if (streq(key, "reload-result")) {
2642 ServiceResult f;
2643
2644 f = service_result_from_string(value);
2645 if (f < 0)
2646 log_debug("Failed to parse reload result value %s", value);
2647 else if (f != SERVICE_SUCCESS)
2648 s->reload_result = f;
a16e1123 2649
a16e1123 2650 } else if (streq(key, "control-pid")) {
5925dd3c 2651 pid_t pid;
a16e1123 2652
e364ad06 2653 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2654 log_debug("Failed to parse control-pid value %s", value);
2655 else
e55224ca 2656 s->control_pid = pid;
a16e1123 2657 } else if (streq(key, "main-pid")) {
5925dd3c 2658 pid_t pid;
a16e1123 2659
e364ad06 2660 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2661 log_debug("Failed to parse main-pid value %s", value);
2662 else
5925dd3c 2663 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2664 } else if (streq(key, "main-pid-known")) {
2665 int b;
2666
2667 if ((b = parse_boolean(value)) < 0)
2668 log_debug("Failed to parse main-pid-known value %s", value);
2669 else
2670 s->main_pid_known = b;
3a2776bc
LP		 2671 } else if (streq(key, "status-text")) {
2672 char *t;
2673
2674 if ((t = strdup(value))) {
2675 free(s->status_text);
2676 s->status_text = t;
2677 }
2678
a16e1123
LP		 2679 } else if (streq(key, "control-command")) {
2680 ServiceExecCommand id;
2681
2682 if ((id = service_exec_command_from_string(value)) < 0)
2683 log_debug("Failed to parse exec-command value %s", value);
2684 else {
2685 s->control_command_id = id;
2686 s->control_command = s->exec_command[id];
2687 }
2688 } else if (streq(key, "socket-fd")) {
2689 int fd;
2690
2691 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2692 log_debug("Failed to parse socket-fd value %s", value);
2693 else {
2694
2695 if (s->socket_fd >= 0)
2696 close_nointr_nofail(s->socket_fd);
2697 s->socket_fd = fdset_remove(fds, fd);
2698 }
ecdbca40
LP		 2699 } else if (streq(key, "main-exec-status-pid")) {
2700 pid_t pid;
2701
e364ad06 2702 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2703 log_debug("Failed to parse main-exec-status-pid value %s", value);
2704 else
2705 s->main_exec_status.pid = pid;
2706 } else if (streq(key, "main-exec-status-code")) {
2707 int i;
2708
e364ad06 2709 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2710 log_debug("Failed to parse main-exec-status-code value %s", value);
2711 else
2712 s->main_exec_status.code = i;
2713 } else if (streq(key, "main-exec-status-status")) {
2714 int i;
2715
e364ad06 2716 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2717 log_debug("Failed to parse main-exec-status-status value %s", value);
2718 else
2719 s->main_exec_status.status = i;
799fd0fd
LP		 2720 } else if (streq(key, "main-exec-status-start"))
2721 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2722 else if (streq(key, "main-exec-status-exit"))
2723 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
a6927d7f
MO		 2724 else if (streq(key, "watchdog-timestamp"))
2725 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
799fd0fd 2726 else
a16e1123
LP		 2727 log_debug("Unknown serialization key '%s'", key);
2728
2729 return 0;
2730}
2731
87f0e418 2732static UnitActiveState service_active_state(Unit *u) {
e056b01d
LP		 2733 const UnitActiveState *table;
2734
87f0e418 2735 assert(u);
5cb5a6ff 2736
e056b01d
LP		 2737 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2738
2739 return table[SERVICE(u)->state];
034c6ed7
LP		 2740}
2741
10a94420
LP		 2742static const char *service_sub_state_to_string(Unit *u) {
2743 assert(u);
2744
2745 return service_state_to_string(SERVICE(u)->state);
2746}
2747
701cc384
LP		 2748static bool service_check_gc(Unit *u) {
2749 Service *s = SERVICE(u);
2750
2751 assert(s);
2752
6d55002a
LP		 2753 /* Never clean up services that still have a process around,
2754 * even if the service is formally dead. */
2755 if (cgroup_good(s) > 0 ||
2756 main_pid_good(s) > 0 ||
2757 control_pid_good(s) > 0)
2758 return true;
2759
2760#ifdef HAVE_SYSV_COMPAT
1b64d026 2761 if (s->is_sysv)
6d55002a 2762 return true;
07459bb6 2763#endif
701cc384 2764
6d55002a
LP		 2765 return false;
2766}
2767
701cc384
LP		 2768static bool service_check_snapshot(Unit *u) {
2769 Service *s = SERVICE(u);
2770
2771 assert(s);
2772
2773 return !s->got_socket_fd;
2774}
2775
3a111838
MS		 2776static int service_retry_pid_file(Service *s) {
2777 int r;
2778
2779 assert(s->pid_file);
2780 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2781
2782 r = service_load_pid_file(s, false);
2783 if (r < 0)
2784 return r;
2785
2786 service_unwatch_pid_file(s);
2787
f42806df 2788 service_enter_running(s, SERVICE_SUCCESS);
3a111838
MS		 2789 return 0;
2790}
2791
2792static int service_watch_pid_file(Service *s) {
2793 int r;
2794
1124fe6f 2795 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
57020a3a 2796 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
3a111838
MS		 2797 if (r < 0)
2798 goto fail;
2799
2800 /* the pidfile might have appeared just before we set the watch */
2801 service_retry_pid_file(s);
2802
2803 return 0;
2804fail:
2805 log_error("Failed to set a watch for %s's PID file %s: %s",
1124fe6f 2806 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
3a111838
MS		 2807 service_unwatch_pid_file(s);
2808 return r;
2809}
2810
2811static int service_demand_pid_file(Service *s) {
2812 PathSpec *ps;
2813
2814 assert(s->pid_file);
2815 assert(!s->pid_file_pathspec);
2816
2817 ps = new0(PathSpec, 1);
2818 if (!ps)
2819 return -ENOMEM;
2820
2821 ps->path = strdup(s->pid_file);
2822 if (!ps->path) {
2823 free(ps);
2824 return -ENOMEM;
2825 }
2826
2827 path_kill_slashes(ps->path);
2828
2829 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2830 * keep their PID file open all the time. */
2831 ps->type = PATH_MODIFIED;
2832 ps->inotify_fd = -1;
2833
2834 s->pid_file_pathspec = ps;
2835
2836 return service_watch_pid_file(s);
2837}
2838
2839static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2840 Service *s = SERVICE(u);
2841
2842 assert(s);
2843 assert(fd >= 0);
2844 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2845 assert(s->pid_file_pathspec);
57020a3a 2846 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
3a111838 2847
ac155bb8 2848 log_debug("inotify event for %s", u->id);
3a111838 2849
57020a3a 2850 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
3a111838
MS		 2851 goto fail;
2852
2853 if (service_retry_pid_file(s) == 0)
2854 return;
2855
2856 if (service_watch_pid_file(s) < 0)
2857 goto fail;
2858
2859 return;
2860fail:
2861 service_unwatch_pid_file(s);
f42806df 2862 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 2863}
2864
87f0e418
LP		 2865static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2866 Service *s = SERVICE(u);
f42806df 2867 ServiceResult f;
5cb5a6ff
LP		 2868
2869 assert(s);
034c6ed7
LP		 2870 assert(pid >= 0);
2871
f42806df
LP		 2872 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2873 f = SERVICE_SUCCESS;
2874 else if (code == CLD_EXITED)
2875 f = SERVICE_FAILURE_EXIT_CODE;
2876 else if (code == CLD_KILLED)
2877 f = SERVICE_FAILURE_SIGNAL;
2878 else if (code == CLD_DUMPED)
2879 f = SERVICE_FAILURE_CORE_DUMP;
d06dacd0 2880 else
cfc4eb4c 2881 assert_not_reached("Unknown code");
034c6ed7
LP		 2882
2883 if (s->main_pid == pid) {
db01f8b3
MS		 2884 /* Forking services may occasionally move to a new PID.
2885 * As long as they update the PID file before exiting the old
2886 * PID, they're fine. */
5375410b 2887 if (service_load_pid_file(s, false) == 0)
db01f8b3 2888 return;
034c6ed7 2889
034c6ed7 2890 s->main_pid = 0;
6ea832a2 2891 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2892
867b3b7d
LP		 2893 /* If this is not a forking service than the main
2894 * process got started and hence we copy the exit
2895 * status so that it is recorded both as main and as
2896 * control process exit status */
2897 if (s->main_command) {
2898 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2899
867b3b7d 2900 if (s->main_command->ignore)
f42806df 2901 f = SERVICE_SUCCESS;
034c6ed7
LP		 2902 }
2903
f42806df 2904 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2905 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2906
2907 if (f != SERVICE_SUCCESS)
2908 s->result = f;
034c6ed7 2909
867b3b7d
LP		 2910 if (s->main_command &&
2911 s->main_command->command_next &&
f42806df 2912 f == SERVICE_SUCCESS) {
034c6ed7 2913
34e9ba66
LP		 2914 /* There is another command to *
2915 * execute, so let's do that. */
034c6ed7 2916
ac155bb8 2917 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
f42806df 2918 service_run_next_main(s);
034c6ed7 2919
34e9ba66
LP		 2920 } else {
2921
2922 /* The service exited, so the service is officially
2923 * gone. */
867b3b7d 2924 s->main_command = NULL;
34e9ba66
LP		 2925
2926 switch (s->state) {
2927
2928 case SERVICE_START_POST:
2929 case SERVICE_RELOAD:
2930 case SERVICE_STOP:
2931 /* Need to wait until the operation is
2932 * done */
c4653a4d 2933 break;
7d55e835 2934
34e9ba66
LP		 2935 case SERVICE_START:
2936 if (s->type == SERVICE_ONESHOT) {
2937 /* This was our main goal, so let's go on */
f42806df 2938 if (f == SERVICE_SUCCESS)
34e9ba66
LP		 2939 service_enter_start_post(s);
2940 else
f42806df 2941 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
34e9ba66
LP		 2942 break;
2943 } else {
2944 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2945
34e9ba66
LP		 2946 /* Fall through */
2947 }
034c6ed7 2948
34e9ba66 2949 case SERVICE_RUNNING:
f42806df 2950 service_enter_running(s, f);
34e9ba66 2951 break;
034c6ed7 2952
34e9ba66
LP		 2953 case SERVICE_STOP_SIGTERM:
2954 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2955
34e9ba66 2956 if (!control_pid_good(s))
f42806df 2957 service_enter_stop_post(s, f);
5cb5a6ff 2958
34e9ba66
LP		 2959 /* If there is still a control process, wait for that first */
2960 break;
2961
2962 default:
2963 assert_not_reached("Uh, main process died at wrong time.");
2964 }
034c6ed7 2965 }
5cb5a6ff 2966
034c6ed7 2967 } else if (s->control_pid == pid) {
034c6ed7 2968
34e9ba66
LP		 2969 s->control_pid = 0;
2970
b708e7ce 2971 if (s->control_command) {
6ea832a2 2972 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2973
b708e7ce 2974 if (s->control_command->ignore)
f42806df 2975 f = SERVICE_SUCCESS;
b708e7ce
LP		 2976 }
2977
f42806df 2978 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
ac155bb8 2979 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
f42806df
LP		 2980
2981 if (f != SERVICE_SUCCESS)
2982 s->result = f;
034c6ed7 2983
88f3e0c9
LP		 2984 /* Immediately get rid of the cgroup, so that the
2985 * kernel doesn't delay the cgroup empty messages for
2986 * the service cgroup any longer than necessary */
2987 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2988
34e9ba66
LP		 2989 if (s->control_command &&
2990 s->control_command->command_next &&
f42806df 2991 f == SERVICE_SUCCESS) {
034c6ed7
LP		 2992
2993 /* There is another command to *
2994 * execute, so let's do that. */
2995
ac155bb8 2996 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
f42806df 2997 service_run_next_control(s);
034c6ed7 2998
80876c20 2999 } else {
034c6ed7
LP		 3000 /* No further commands for this step, so let's
3001 * figure out what to do next */
3002
a16e1123
LP		 3003 s->control_command = NULL;
3004 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3005
ac155bb8 3006 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
bd982a8b 3007
034c6ed7
LP		 3008 switch (s->state) {
3009
3010 case SERVICE_START_PRE:
f42806df 3011 if (f == SERVICE_SUCCESS)
034c6ed7
LP		 3012 service_enter_start(s);
3013 else
f42806df 3014 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
034c6ed7
LP		 3015 break;
3016
3017 case SERVICE_START:
3018 assert(s->type == SERVICE_FORKING);
3019
f42806df
LP		 3020 if (f != SERVICE_SUCCESS) {
3021 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3a111838
MS		 3022 break;
3023 }
034c6ed7 3024
3a111838 3025 if (s->pid_file) {
f42806df
LP		 3026 bool has_start_post;
3027 int r;
3028
3a111838
MS		 3029 /* Let's try to load the pid file here if we can.
3030 * The PID file might actually be created by a START_POST
3031 * script. In that case don't worry if the loading fails. */
f42806df
LP		 3032
3033 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3034 r = service_load_pid_file(s, !has_start_post);
3a111838
MS		 3035 if (!has_start_post && r < 0) {
3036 r = service_demand_pid_file(s);
3037 if (r < 0 || !cgroup_good(s))
f42806df 3038 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3039 break;
3040 }
034c6ed7 3041 } else
3a111838 3042 service_search_main_pid(s);
034c6ed7 3043
3a111838 3044 service_enter_start_post(s);
034c6ed7
LP		 3045 break;
3046
3047 case SERVICE_START_POST:
f42806df
LP		 3048 if (f != SERVICE_SUCCESS) {
3049 service_enter_stop(s, f);
2096e009 3050 break;
034c6ed7
LP		 3051 }
3052
2096e009 3053 if (s->pid_file) {
f42806df
LP		 3054 int r;
3055
3056 r = service_load_pid_file(s, true);
2096e009
MS		 3057 if (r < 0) {
3058 r = service_demand_pid_file(s);
3059 if (r < 0 || !cgroup_good(s))
f42806df 3060 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2096e009
MS		 3061 break;
3062 }
3063 } else
3064 service_search_main_pid(s);
3065
f42806df 3066 service_enter_running(s, SERVICE_SUCCESS);
3185a36b 3067 break;
034c6ed7
LP		 3068
3069 case SERVICE_RELOAD:
f42806df 3070 if (f == SERVICE_SUCCESS) {
5375410b 3071 service_load_pid_file(s, true);
3185a36b
LP		 3072 service_search_main_pid(s);
3073 }
3074
f42806df
LP		 3075 s->reload_result = f;
3076 service_enter_running(s, SERVICE_SUCCESS);
034c6ed7
LP		 3077 break;
3078
3079 case SERVICE_STOP:
f42806df 3080 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
034c6ed7
LP		 3081 break;
3082
3083 case SERVICE_STOP_SIGTERM:
3084 case SERVICE_STOP_SIGKILL:
3085 if (main_pid_good(s) <= 0)
f42806df 3086 service_enter_stop_post(s, f);
034c6ed7
LP		 3087
3088 /* If there is still a service
3089 * process around, wait until
3090 * that one quit, too */
3091 break;
3092
3093 case SERVICE_STOP_POST:
3094 case SERVICE_FINAL_SIGTERM:
3095 case SERVICE_FINAL_SIGKILL:
f42806df 3096 service_enter_dead(s, f, true);
034c6ed7
LP		 3097 break;
3098
3099 default:
3100 assert_not_reached("Uh, control process died at wrong time.");
3101 }
3102 }
8c47c732 3103 }
c4e2ceae
LP		 3104
3105 /* Notify clients about changed exit status */
3106 unit_add_to_dbus_queue(u);
034c6ed7
LP		 3107}
3108
acbb0225 3109static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 3110 Service *s = SERVICE(u);
034c6ed7
LP		 3111
3112 assert(s);
3113 assert(elapsed == 1);
3114
bb242b7b
MO		 3115 if (w == &s->watchdog_watch) {
3116 service_handle_watchdog(s);
3117 return;
3118 }
3119
acbb0225 3120 assert(w == &s->timer_watch);
034c6ed7
LP		 3121
3122 switch (s->state) {
3123
3124 case SERVICE_START_PRE:
3125 case SERVICE_START:
ac155bb8 3126 log_warning("%s operation timed out. Terminating.", u->id);
f42806df 3127 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
80876c20
LP		 3128 break;
3129
034c6ed7 3130 case SERVICE_START_POST:
ac155bb8 3131 log_warning("%s operation timed out. Stopping.", u->id);
f42806df 3132 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3133 break;
3134
e2f3b44c 3135 case SERVICE_RELOAD:
ac155bb8 3136 log_warning("%s operation timed out. Stopping.", u->id);
f42806df
LP		 3137 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3138 service_enter_running(s, SERVICE_SUCCESS);
e2f3b44c
LP		 3139 break;
3140
034c6ed7 3141 case SERVICE_STOP:
ac155bb8 3142 log_warning("%s stopping timed out. Terminating.", u->id);
f42806df 3143 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3144 break;
3145
3146 case SERVICE_STOP_SIGTERM:
ba035df2 3147 if (s->exec_context.send_sigkill) {
ac155bb8 3148 log_warning("%s stopping timed out. Killing.", u->id);
f42806df 3149 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3150 } else {
ac155bb8 3151 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
f42806df 3152 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
ba035df2
LP		 3153 }
3154
034c6ed7
LP		 3155 break;
3156
3157 case SERVICE_STOP_SIGKILL:
35b8ca3a 3158 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 3159 * Must be something we cannot kill, so let's just be
3160 * weirded out and continue */
3161
ac155bb8 3162 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
f42806df 3163 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3164 break;
3165
3166 case SERVICE_STOP_POST:
ac155bb8 3167 log_warning("%s stopping timed out (2). Terminating.", u->id);
f42806df 3168 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
034c6ed7
LP		 3169 break;
3170
3171 case SERVICE_FINAL_SIGTERM:
ba035df2 3172 if (s->exec_context.send_sigkill) {
ac155bb8 3173 log_warning("%s stopping timed out (2). Killing.", u->id);
f42806df 3174 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
ba035df2 3175 } else {
ac155bb8 3176 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
f42806df 3177 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
ba035df2
LP		 3178 }
3179
034c6ed7
LP		 3180 break;
3181
3182 case SERVICE_FINAL_SIGKILL:
ac155bb8 3183 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
f42806df 3184 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
034c6ed7
LP		 3185 break;
3186
3187 case SERVICE_AUTO_RESTART:
ac155bb8 3188 log_info("%s holdoff time over, scheduling restart.", u->id);
034c6ed7
LP		 3189 service_enter_restart(s);
3190 break;
3191
3192 default:
3193 assert_not_reached("Timeout at wrong time.");
3194 }
5cb5a6ff
LP		 3195}
3196
8e274523
LP		 3197static void service_cgroup_notify_event(Unit *u) {
3198 Service *s = SERVICE(u);
3199
3200 assert(u);
3201
ac155bb8 3202 log_debug("%s: cgroup is empty", u->id);
8e274523
LP		 3203
3204 switch (s->state) {
3205
3206 /* Waiting for SIGCHLD is usually more interesting,
3207 * because it includes return codes/signals. Which is
3208 * why we ignore the cgroup events for most cases,
3209 * except when we don't know pid which to expect the
3210 * SIGCHLD for. */
3211
3a111838
MS		 3212 case SERVICE_START:
3213 case SERVICE_START_POST:
3214 /* If we were hoping for the daemon to write its PID file,
3215 * we can give up now. */
3216 if (s->pid_file_pathspec) {
1124fe6f 3217 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3a111838
MS		 3218 service_unwatch_pid_file(s);
3219 if (s->state == SERVICE_START)
f42806df 3220 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3a111838 3221 else
f42806df 3222 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3a111838
MS		 3223 }
3224 break;
3225
8e274523 3226 case SERVICE_RUNNING:
f42806df
LP		 3227 /* service_enter_running() will figure out what to do */
3228 service_enter_running(s, SERVICE_SUCCESS);
8e274523
LP		 3229 break;
3230
28708d8a
LP		 3231 case SERVICE_STOP_SIGTERM:
3232 case SERVICE_STOP_SIGKILL:
6dfa5494 3233
28708d8a 3234 if (main_pid_good(s) <= 0 && !control_pid_good(s))
f42806df 3235 service_enter_stop_post(s, SERVICE_SUCCESS);
28708d8a
LP		 3236
3237 break;
3238
7f97f0fe
LP		 3239 case SERVICE_FINAL_SIGTERM:
3240 case SERVICE_FINAL_SIGKILL:
3241 if (main_pid_good(s) <= 0 && !control_pid_good(s))
e201a038 3242 service_enter_dead(s, SERVICE_SUCCESS, true);
7f97f0fe
LP		 3243
3244 break;
3245
8e274523
LP		 3246 default:
3247 ;
3248 }
3249}
3250
c952c6ec 3251static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 3252 Service *s = SERVICE(u);
3253 const char *e;
3254
3255 assert(u);
3256
c952c6ec
LP		 3257 if (s->notify_access == NOTIFY_NONE) {
3258 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
ac155bb8 3259 u->id, (unsigned long) pid);
c952c6ec
LP		 3260 return;
3261 }
3262
3263 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3264 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
ac155bb8 3265 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
c952c6ec
LP		 3266 return;
3267 }
3268
ac155bb8 3269 log_debug("%s: Got message", u->id);
8c47c732
LP		 3270
3271 /* Interpret MAINPID= */
3272 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3273 (s->state == SERVICE_START ||
3274 s->state == SERVICE_START_POST ||
3275 s->state == SERVICE_RUNNING ||
3276 s->state == SERVICE_RELOAD)) {
8c47c732 3277
5925dd3c 3278 if (parse_pid(e + 8, &pid) < 0)
92abbefb 3279 log_warning("Failed to parse notification message %s", e);
8c47c732 3280 else {
ac155bb8 3281 log_debug("%s: got %s", u->id, e);
5925dd3c 3282 service_set_main_pid(s, pid);
8c47c732
LP		 3283 }
3284 }
3285
3286 /* Interpret READY= */
3287 if (s->type == SERVICE_NOTIFY &&
3288 s->state == SERVICE_START &&
3289 strv_find(tags, "READY=1")) {
ac155bb8 3290 log_debug("%s: got READY=1", u->id);
8c47c732
LP		 3291
3292 service_enter_start_post(s);
3293 }
3294
3295 /* Interpret STATUS= */
7f110ff9
LP		 3296 e = strv_find_prefix(tags, "STATUS=");
3297 if (e) {
8c47c732
LP		 3298 char *t;
3299
3a2776bc 3300 if (e[7]) {
7f110ff9
LP		 3301
3302 if (!utf8_is_valid(e+7)) {
3303 log_warning("Status message in notification is not UTF-8 clean.");
3304 return;
3305 }
3306
3307 t = strdup(e+7);
3308 if (!t) {
3a2776bc
LP		 3309 log_error("Failed to allocate string.");
3310 return;
3311 }
3312
ac155bb8 3313 log_debug("%s: got %s", u->id, e);
8c47c732 3314
3a2776bc
LP		 3315 free(s->status_text);
3316 s->status_text = t;
3317 } else {
3318 free(s->status_text);
3319 s->status_text = NULL;
3320 }
8c47c732 3321
8c47c732 3322 }
a6927d7f
MO		 3323 if (strv_find(tags, "WATCHDOG=1")) {
3324 log_debug("%s: got WATCHDOG=1", u->id);
3325 service_reset_watchdog(s);
3326 }
c4e2ceae
LP		 3327
3328 /* Notify clients about changed status or main pid */
3329 unit_add_to_dbus_queue(u);
8c47c732
LP		 3330}
3331
07459bb6 3332#ifdef HAVE_SYSV_COMPAT
de3910a3
FC		 3333
3334#ifdef TARGET_SUSE
3335static void sysv_facility_in_insserv_conf(Manager *mgr) {
3336 FILE *f=NULL;
3337 int r;
3338
3339 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3340 r = errno == ENOENT ? 0 : -errno;
3341 goto finish;
3342 }
3343
3344 while (!feof(f)) {
3345 char l[LINE_MAX], *t;
3346 char **parsed = NULL;
3347
3348 if (!fgets(l, sizeof(l), f)) {
3349 if (feof(f))
3350 break;
3351
3352 r = -errno;
3353 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3354 goto finish;
3355 }
3356
3357 t = strstrip(l);
3358 if (*t != '$' && *t != '<')
3359 continue;
3360
3361 parsed = strv_split(t,WHITESPACE);
3362 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3363 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3364 char *facility;
3365 Unit *u;
3366 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3367 continue;
ac155bb8 3368 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
de3910a3
FC		 3369 UnitDependency e;
3370 char *dep = NULL, *name, **j;
3371
3372 STRV_FOREACH (j, parsed+1) {
3373 if (*j[0]=='+') {
3374 e = UNIT_WANTS;
3375 name = *j+1;
3376 }
3377 else {
3378 e = UNIT_REQUIRES;
3379 name = *j;
3380 }
3381 if (sysv_translate_facility(name, NULL, &dep) < 0)
3382 continue;
3383
3384 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3385 free(dep);
3386 }
3387 }
3388 free(facility);
3389 }
3390 strv_free(parsed);
3391 }
3392finish:
3393 if (f)
3394 fclose(f);
3395
3396}
3397#endif
3398
2c4104f0 3399static int service_enumerate(Manager *m) {
2c4104f0
LP		 3400 char **p;
3401 unsigned i;
3402 DIR *d = NULL;
3403 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 3404 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3405 Unit *service;
3406 Iterator j;
2c4104f0
LP		 3407 int r;
3408
3409 assert(m);
3410
b1bc08e5
LP		 3411 if (m->running_as != MANAGER_SYSTEM)
3412 return 0;
3413
c68364b7
LP		 3414 zero(runlevel_services);
3415
84e3543e 3416 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 3417 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 3418 struct dirent *de;
3419
3420 free(path);
b7def684 3421 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
70132bd0 3422 if (!path) {
2c4104f0
LP		 3423 r = -ENOMEM;
3424 goto finish;
3425 }
3426
3427 if (d)
3428 closedir(d);
3429
3430 if (!(d = opendir(path))) {
3431 if (errno != ENOENT)
3432 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3433
3434 continue;
3435 }
3436
3437 while ((de = readdir(d))) {
db06e3b6 3438 int a, b;
2c4104f0
LP		 3439
3440 if (ignore_file(de->d_name))
3441 continue;
3442
3443 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3444 continue;
3445
3446 if (strlen(de->d_name) < 4)
3447 continue;
3448
db06e3b6
LP		 3449 a = undecchar(de->d_name[1]);
3450 b = undecchar(de->d_name[2]);
3451
3452 if (a < 0 || b < 0)
3453 continue;
3454
2c4104f0 3455 free(fpath);
b7def684 3456 fpath = strjoin(path, "/", de->d_name, NULL);
8ea913b2 3457 if (!fpath) {
2c4104f0
LP		 3458 r = -ENOMEM;
3459 goto finish;
3460 }
3461
3462 if (access(fpath, X_OK) < 0) {
3463
3464 if (errno != ENOENT)
3465 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3466
3467 continue;
3468 }
3469
3470 free(name);
b7ccee3c 3471 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3472 r = -ENOMEM;
3473 goto finish;
3474 }
3475
398ef8ba 3476 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3477 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3478 continue;
3479 }
2c4104f0 3480
c68364b7
LP		 3481 if (de->d_name[0] == 'S') {
3482
f73d93a4 3483 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3484 SERVICE(service)->sysv_start_priority_from_rcnd =
3485 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3486
c68364b7 3487 SERVICE(service)->sysv_enabled = true;
f73d93a4 3488 }
db06e3b6 3489
c68364b7
LP		 3490 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3491 goto finish;
2c4104f0 3492
c68364b7 3493 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3494 goto finish;
23a177ef 3495
fc5df99e
LP		 3496 } else if (de->d_name[0] == 'K' &&
3497 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3498 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3499
c68364b7
LP		 3500 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3501 goto finish;
3502
3503 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3504 goto finish;
3505 }
3506 }
3507 }
3508
c68364b7
LP		 3509 /* Now we loaded all stubs and are aware of the lowest
3510 start-up priority for all services, not let's actually load
3511 the services, this will also tell us which services are
3512 actually native now */
3513 manager_dispatch_load_queue(m);
3514
3515 /* If this is a native service, rely on native ways to pull in
3516 * a service, don't pull it in via sysv rcN.d links. */
3517 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3518 SET_FOREACH(service, runlevel_services[i], j) {
3519 service = unit_follow_merge(service);
3520
ac155bb8 3521 if (service->fragment_path)
c68364b7
LP		 3522 continue;
3523
3524 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3525 goto finish;
3526 }
3527
3528 /* We honour K links only for halt/reboot. For the normal
3529 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3530 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3531 * between the runlevels 0 and 6 and just add them to the
3532 * special shutdown target. On SUSE the boot.d/ runlevel is
3533 * also used for shutdown, so we add links for that too to the
3534 * shutdown target.*/
3535 SET_FOREACH(service, shutdown_services, j) {
3536 service = unit_follow_merge(service);
3537
ac155bb8 3538 if (service->fragment_path)
c68364b7
LP		 3539 continue;
3540
ead8e478 3541 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3542 goto finish;
3543 }
3544
2c4104f0
LP		 3545 r = 0;
3546
de3910a3 3547#ifdef TARGET_SUSE
3a111838 3548 sysv_facility_in_insserv_conf (m);
de3910a3
FC		 3549#endif
3550
2c4104f0
LP		 3551finish:
3552 free(path);
3553 free(fpath);
3554 free(name);
fbe9f3a9 3555
c68364b7
LP		 3556 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3557 set_free(runlevel_services[i]);
3558 set_free(shutdown_services);
3559
fbe9f3a9
LP		 3560 if (d)
3561 closedir(d);
2c4104f0
LP		 3562
3563 return r;
3564}
07459bb6 3565#endif
2c4104f0 3566
05e343b7
LP		 3567static void service_bus_name_owner_change(
3568 Unit *u,
3569 const char *name,
3570 const char *old_owner,
3571 const char *new_owner) {
3572
3573 Service *s = SERVICE(u);
3574
3575 assert(s);
3576 assert(name);
3577
3578 assert(streq(s->bus_name, name));
3579 assert(old_owner || new_owner);
3580
3581 if (old_owner && new_owner)
ac155bb8 3582 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
05e343b7 3583 else if (old_owner)
ac155bb8 3584 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
05e343b7 3585 else
ac155bb8 3586 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
05e343b7
LP		 3587
3588 s->bus_name_good = !!new_owner;
3589
3590 if (s->type == SERVICE_DBUS) {
3591
3592 /* service_enter_running() will figure out what to
3593 * do */
3594 if (s->state == SERVICE_RUNNING)
f42806df 3595 service_enter_running(s, SERVICE_SUCCESS);
05e343b7
LP		 3596 else if (s->state == SERVICE_START && new_owner)
3597 service_enter_start_post(s);
3598
3599 } else if (new_owner &&
3600 s->main_pid <= 0 &&
3601 (s->state == SERVICE_START ||
3602 s->state == SERVICE_START_POST ||
3603 s->state == SERVICE_RUNNING ||
3604 s->state == SERVICE_RELOAD)) {
3605
3606 /* Try to acquire PID from bus service */
3607 log_debug("Trying to acquire PID from D-Bus name...");
3608
ac155bb8 3609 bus_query_pid(u->manager, name);
05e343b7
LP		 3610 }
3611}
3612
3613static void service_bus_query_pid_done(
3614 Unit *u,
3615 const char *name,
3616 pid_t pid) {
3617
3618 Service *s = SERVICE(u);
3619
3620 assert(s);
3621 assert(name);
3622
ac155bb8 3623 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
05e343b7
LP		 3624
3625 if (s->main_pid <= 0 &&
3626 (s->state == SERVICE_START ||
3627 s->state == SERVICE_START_POST ||
3628 s->state == SERVICE_RUNNING ||
3629 s->state == SERVICE_RELOAD))
5925dd3c 3630 service_set_main_pid(s, pid);
05e343b7
LP		 3631}
3632
6cf6bbc2 3633int service_set_socket_fd(Service *s, int fd, Socket *sock) {
57020a3a 3634
4f2d528d
LP		 3635 assert(s);
3636 assert(fd >= 0);
3637
3638 /* This is called by the socket code when instantiating a new
3639 * service for a stream socket and the socket needs to be
3640 * configured. */
3641
1124fe6f 3642 if (UNIT(s)->load_state != UNIT_LOADED)
4f2d528d
LP		 3643 return -EINVAL;
3644
3645 if (s->socket_fd >= 0)
3646 return -EBUSY;
3647
3648 if (s->state != SERVICE_DEAD)
3649 return -EAGAIN;
3650
3651 s->socket_fd = fd;
701cc384 3652 s->got_socket_fd = true;
6cf6bbc2 3653
57020a3a
LP		 3654 unit_ref_set(&s->accept_socket, UNIT(sock));
3655
3656 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
4f2d528d
LP		 3657}
3658
fdf20a31 3659static void service_reset_failed(Unit *u) {
5632e374
LP		 3660 Service *s = SERVICE(u);
3661
3662 assert(s);
3663
fdf20a31 3664 if (s->state == SERVICE_FAILED)
5632e374
LP		 3665 service_set_state(s, SERVICE_DEAD);
3666
f42806df
LP		 3667 s->result = SERVICE_SUCCESS;
3668 s->reload_result = SERVICE_SUCCESS;
451b34cc
LP		 3669
3670 RATELIMIT_RESET(s->start_limit);
5632e374
LP		 3671}
3672
8a0867d6
LP		 3673static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3674 Service *s = SERVICE(u);
3675 int r = 0;
3676 Set *pid_set = NULL;
3677
3678 assert(s);
3679
3680 if (s->main_pid <= 0 && who == KILL_MAIN) {
3681 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3682 return -ESRCH;
8a0867d6
LP		 3683 }
3684
3685 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3686 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3687 return -ESRCH;
8a0867d6
LP		 3688 }
3689
3611581e
LP		 3690 if (who == KILL_CONTROL || who == KILL_ALL)
3691 if (s->control_pid > 0)
3692 if (kill(s->control_pid, signo) < 0)
3693 r = -errno;
8a0867d6 3694
3611581e
LP		 3695 if (who == KILL_MAIN || who == KILL_ALL)
3696 if (s->main_pid > 0)
3697 if (kill(s->main_pid, signo) < 0)
3698 r = -errno;
8a0867d6 3699
3611581e 3700 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
8a0867d6
LP		 3701 int q;
3702
3703 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3704 return -ENOMEM;
3705
3706 /* Exclude the control/main pid from being killed via the cgroup */
3707 if (s->control_pid > 0)
3708 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3709 r = q;
3710 goto finish;
3711 }
3712
3713 if (s->main_pid > 0)
3714 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3715 r = q;
3716 goto finish;
3717 }
88f3e0c9 3718 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
ecedd90f 3719 if (q < 0)
3611581e 3720 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
8a0867d6
LP		 3721 r = q;
3722 }
3723
3724finish:
3725 if (pid_set)
3726 set_free(pid_set);
3727
3728 return r;
3729}
3730
94f04347
LP		 3731static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3732 [SERVICE_DEAD] = "dead",
3733 [SERVICE_START_PRE] = "start-pre",
3734 [SERVICE_START] = "start",
3735 [SERVICE_START_POST] = "start-post",
3736 [SERVICE_RUNNING] = "running",
80876c20 3737 [SERVICE_EXITED] = "exited",
94f04347
LP		 3738 [SERVICE_RELOAD] = "reload",
3739 [SERVICE_STOP] = "stop",
3740 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3741 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3742 [SERVICE_STOP_POST] = "stop-post",
3743 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3744 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3745 [SERVICE_FAILED] = "failed",
94f04347
LP		 3746 [SERVICE_AUTO_RESTART] = "auto-restart",
3747};
3748
3749DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3750
3751static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3752 [SERVICE_RESTART_NO] = "no",
3753 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3754 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3755 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3756 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3757};
3758
3759DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3760
3761static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3762 [SERVICE_SIMPLE] = "simple",
0d624a78 3763 [SERVICE_FORKING] = "forking",
34e9ba66 3764 [SERVICE_ONESHOT] = "oneshot",
8c47c732 3765 [SERVICE_DBUS] = "dbus",
f2b68789
LP		 3766 [SERVICE_NOTIFY] = "notify",
3767 [SERVICE_IDLE] = "idle"
94f04347
LP		 3768};
3769
3770DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3771
e537352b 3772static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3773 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3774 [SERVICE_EXEC_START] = "ExecStart",
3775 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3776 [SERVICE_EXEC_RELOAD] = "ExecReload",
3777 [SERVICE_EXEC_STOP] = "ExecStop",
3778 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3779};
3780
3781DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3782
c952c6ec
LP		 3783static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3784 [NOTIFY_NONE] = "none",
3785 [NOTIFY_MAIN] = "main",
3786 [NOTIFY_ALL] = "all"
3787};
3788
3789DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3790
f42806df
LP		 3791static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3792 [SERVICE_SUCCESS] = "success",
3793 [SERVICE_FAILURE_RESOURCES] = "resources",
3794 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3795 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3796 [SERVICE_FAILURE_SIGNAL] = "signal",
bb242b7b
MO		 3797 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3798 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
f42806df
LP		 3799};
3800
3801DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3802
4b939747
MO		 3803static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3804 [SERVICE_START_LIMIT_NONE] = "none",
3805 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3806 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3807 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3808};
3809DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3810
87f0e418 3811const UnitVTable service_vtable = {
7d17cfbc 3812 .object_size = sizeof(Service),
f975e971
LP		 3813 .sections =
3814 "Unit\0"
3815 "Service\0"
3816 "Install\0",
5cb5a6ff 3817
034c6ed7
LP		 3818 .init = service_init,
3819 .done = service_done,
a16e1123
LP		 3820 .load = service_load,
3821
3822 .coldplug = service_coldplug,
034c6ed7 3823
5cb5a6ff
LP		 3824 .dump = service_dump,
3825
3826 .start = service_start,
3827 .stop = service_stop,
3828 .reload = service_reload,
3829
034c6ed7
LP		 3830 .can_reload = service_can_reload,
3831
8a0867d6
LP		 3832 .kill = service_kill,
3833
a16e1123
LP		 3834 .serialize = service_serialize,
3835 .deserialize_item = service_deserialize_item,
3836
5cb5a6ff 3837 .active_state = service_active_state,
10a94420 3838 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3839
701cc384
LP		 3840 .check_gc = service_check_gc,
3841 .check_snapshot = service_check_snapshot,
3842
034c6ed7
LP		 3843 .sigchld_event = service_sigchld_event,
3844 .timer_event = service_timer_event,
3a111838 3845 .fd_event = service_fd_event,
2c4104f0 3846
fdf20a31 3847 .reset_failed = service_reset_failed,
5632e374 3848
8e274523 3849 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3850 .notify_message = service_notify_message,
8e274523 3851
05e343b7
LP		 3852 .bus_name_owner_change = service_bus_name_owner_change,
3853 .bus_query_pid_done = service_bus_query_pid_done,
3854
c4e2ceae 3855 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3856 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3857 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3858
07459bb6 3859#ifdef HAVE_SYSV_COMPAT
c6918296 3860 .enumerate = service_enumerate,
07459bb6 3861#endif
c6918296
MS		 3862 .status_message_formats = {
3863 .starting_stopping = {
3864 [0] = "Starting %s...",
3865 [1] = "Stopping %s...",
3866 },
3867 .finished_start_job = {
3868 [JOB_DONE] = "Started %s.",
3869 [JOB_FAILED] = "Failed to start %s.",
3870 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3871 [JOB_TIMEOUT] = "Timed out starting %s.",
3872 },
3873 .finished_stop_job = {
3874 [JOB_DONE] = "Stopped %s.",
3875 [JOB_FAILED] = "Stopped (with error) %s.",
3876 [JOB_TIMEOUT] = "Timed out stopping %s.",
3877 },
3878 },
5cb5a6ff 3879};
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