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virt: add missing header inclusion
[thirdparty/systemd.git] / src / service.c
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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
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
9a57c629 37#include "exit-status.h"
f6a6225e
LP		 38#include "def.h"
39#include "util.h"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
f34277d9 42
f6a6225e 43#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
f34277d9 44
09cd1ab1
LP		 45typedef enum RunlevelType {
46 RUNLEVEL_UP,
47 RUNLEVEL_DOWN,
fc5df99e 48 RUNLEVEL_SYSINIT
09cd1ab1
LP		 49} RunlevelType;
50
51static const struct {
52 const char *path;
53 const char *target;
54 const RunlevelType type;
55} rcnd_table[] = {
9d25f5ed 56 /* Standard SysV runlevels for start-up */
514f4ef5 57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 62
d4054675 63#ifdef TARGET_SUSE
cfe243e3 64 /* SUSE style boot.d */
fc5df99e 65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 66#endif
fbe9f3a9 67
240fc26e 68#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
fbe9f3a9 69 /* Debian style rcS.d */
fc5df99e 70 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 71#endif
9d25f5ed
LP		 72
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
75 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
76
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 82};
83
09cd1ab1 84#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 85/* #define RUNLEVELS_DOWN "06" */
86/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 87#endif
09cd1ab1 88
acbb0225 89static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 90 [SERVICE_DEAD] = UNIT_INACTIVE,
91 [SERVICE_START_PRE] = UNIT_ACTIVATING,
92 [SERVICE_START] = UNIT_ACTIVATING,
93 [SERVICE_START_POST] = UNIT_ACTIVATING,
94 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 95 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 96 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 97 [SERVICE_STOP] = UNIT_DEACTIVATING,
98 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
101 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 103 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 104 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 105};
5cb5a6ff 106
a16e1123
LP		 107static void service_init(Unit *u) {
108 Service *s = SERVICE(u);
109
110 assert(u);
111 assert(u->meta.load_state == UNIT_STUB);
112
113 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
114 s->restart_usec = DEFAULT_RESTART_USEC;
115 s->timer_watch.type = WATCH_INVALID;
07459bb6 116#ifdef HAVE_SYSV_COMPAT
a16e1123 117 s->sysv_start_priority = -1;
ea87ca5a 118 s->sysv_start_priority_from_rcnd = -1;
07459bb6 119#endif
a16e1123 120 s->socket_fd = -1;
3185a36b 121 s->guess_main_pid = true;
a16e1123
LP		 122
123 exec_context_init(&s->exec_context);
124
125 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
126
127 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
128}
129
5e94833f
LP		 130static void service_unwatch_control_pid(Service *s) {
131 assert(s);
132
133 if (s->control_pid <= 0)
134 return;
135
136 unit_unwatch_pid(UNIT(s), s->control_pid);
137 s->control_pid = 0;
138}
139
140static void service_unwatch_main_pid(Service *s) {
141 assert(s);
142
143 if (s->main_pid <= 0)
144 return;
145
146 unit_unwatch_pid(UNIT(s), s->main_pid);
147 s->main_pid = 0;
148}
149
5925dd3c 150static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 151 pid_t ppid;
152
5925dd3c
LP		 153 assert(s);
154
155 if (pid <= 1)
156 return -EINVAL;
157
158 if (pid == getpid())
159 return -EINVAL;
160
6dfa5494
LP		 161 s->main_pid = pid;
162 s->main_pid_known = true;
163
164 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
e55224ca
LP		 165 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
166 s->meta.id, (unsigned long) pid);
167
6dfa5494
LP		 168 s->main_pid_alien = true;
169 } else
170 s->main_pid_alien = false;
5925dd3c 171
b58b4116
LP		 172 exec_status_start(&s->main_exec_status, pid);
173
5925dd3c
LP		 174 return 0;
175}
176
4f2d528d
LP		 177static void service_close_socket_fd(Service *s) {
178 assert(s);
179
180 if (s->socket_fd < 0)
181 return;
182
183 close_nointr_nofail(s->socket_fd);
184 s->socket_fd = -1;
185}
186
6cf6bbc2
LP		 187static void service_connection_unref(Service *s) {
188 assert(s);
189
f976f3f6 190 if (!s->accept_socket)
6cf6bbc2
LP		 191 return;
192
f976f3f6
LP		 193 socket_connection_unref(s->accept_socket);
194 s->accept_socket = NULL;
6cf6bbc2
LP		 195}
196
87f0e418
LP		 197static void service_done(Unit *u) {
198 Service *s = SERVICE(u);
44d8db9e
LP		 199
200 assert(s);
201
202 free(s->pid_file);
203 s->pid_file = NULL;
204
07459bb6 205#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 206 free(s->sysv_path);
207 s->sysv_path = NULL;
208
8309400a
LP		 209 free(s->sysv_runlevels);
210 s->sysv_runlevels = NULL;
07459bb6 211#endif
8309400a 212
8c47c732
LP		 213 free(s->status_text);
214 s->status_text = NULL;
215
44d8db9e 216 exec_context_done(&s->exec_context);
e537352b 217 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 218 s->control_command = NULL;
867b3b7d 219 s->main_command = NULL;
44d8db9e
LP		 220
221 /* This will leak a process, but at least no memory or any of
222 * our resources */
5e94833f
LP		 223 service_unwatch_main_pid(s);
224 service_unwatch_control_pid(s);
44d8db9e 225
05e343b7
LP		 226 if (s->bus_name) {
227 unit_unwatch_bus_name(UNIT(u), s->bus_name);
228 free(s->bus_name);
229 s->bus_name = NULL;
230 }
231
4f2d528d 232 service_close_socket_fd(s);
6cf6bbc2 233 service_connection_unref(s);
4f2d528d 234
f976f3f6
LP		 235 set_free(s->configured_sockets);
236
acbb0225 237 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 238}
239
07459bb6 240#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 241static char *sysv_translate_name(const char *name) {
242 char *r;
243
244 if (!(r = new(char, strlen(name) + sizeof(".service"))))
245 return NULL;
246
1bd8b818 247#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198
MB		 248 if (endswith(name, ".sh"))
249 /* Drop Debian-style .sh suffix */
250 strcpy(stpcpy(r, name) - 3, ".service");
251#endif
252#ifdef TARGET_SUSE
b7ccee3c
LP		 253 if (startswith(name, "boot."))
254 /* Drop SuSE-style boot. prefix */
255 strcpy(stpcpy(r, name + 5), ".service");
5b819198 256#endif
65530632 257#ifdef TARGET_FRUGALWARE
5b819198 258 if (startswith(name, "rc."))
65530632
MV		 259 /* Drop Frugalware-style rc. prefix */
260 strcpy(stpcpy(r, name + 3), ".service");
980900c1 261#endif
b7ccee3c
LP		 262 else
263 /* Normal init scripts */
264 strcpy(stpcpy(r, name), ".service");
265
266 return r;
267}
268
ee95669f 269static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 270
a7d3cc26
LP		 271 /* We silently ignore the $ prefix here. According to the LSB
272 * spec it simply indicates whether something is a
273 * standardized name or a distribution-specific one. Since we
274 * just follow what already exists and do not introduce new
275 * uses or names we don't care who introduced a new name. */
276
2c4104f0 277 static const char * const table[] = {
6464aa08 278 /* LSB defined facilities */
a7d3cc26 279 "local_fs", SPECIAL_LOCAL_FS_TARGET,
1de4d79b 280#ifndef TARGET_MANDRIVA
8d0e38a2
LP		 281 /* Due to unfortunate name selection in Mandriva,
282 * $network is provided by network-up which is ordered
283 * after network which actually starts interfaces.
284 * To break the loop, just ignore it */
a7d3cc26 285 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 286#endif
a7d3cc26
LP		 287 "named", SPECIAL_NSS_LOOKUP_TARGET,
288 "portmap", SPECIAL_RPCBIND_TARGET,
289 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
290 "syslog", SPECIAL_SYSLOG_TARGET,
4466194c 291 "time", SPECIAL_TIME_SYNC_TARGET,
6464aa08 292
0b603b4e
KS		 293 /* common extensions */
294 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
295 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
296 "null", NULL,
297
1bd8b818 298#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
a7d3cc26 299 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 300#endif
3177a49c
LP		 301
302#ifdef TARGET_FEDORA
a7d3cc26
LP		 303 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
304 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
305 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 306#endif
a7d3cc26 307
0b603b4e
KS		 308#ifdef TARGET_SUSE
309 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
310#endif
2c4104f0
LP		 311 };
312
313 unsigned i;
314 char *r;
ee95669f 315 const char *n;
2c4104f0 316
ee95669f
LP		 317 assert(name);
318 assert(_r);
a7d3cc26 319
ee95669f 320 n = *name == '$' ? name + 1 : name;
a7d3cc26 321
ee95669f 322 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 323
ee95669f
LP		 324 if (!streq(table[i], n))
325 continue;
2c4104f0 326
ee95669f
LP		 327 if (!table[i+1])
328 return 0;
329
330 if (!(r = strdup(table[i+1])))
331 return -ENOMEM;
332
333 goto finish;
334 }
2c4104f0 335
a7d3cc26 336 /* If we don't know this name, fallback heuristics to figure
0003d1ab 337 * out whether something is a target or a service alias. */
a7d3cc26 338
e83c7c0b
LP		 339 if (*name == '$') {
340 if (!unit_prefix_is_valid(n))
341 return -EINVAL;
342
ee95669f
LP		 343 /* Facilities starting with $ are most likely targets */
344 r = unit_name_build(n, NULL, ".target");
e83c7c0b 345 } else if (filename && streq(name, filename))
35b8ca3a 346 /* Names equaling the file name of the services are redundant */
ee95669f 347 return 0;
32159d3a 348 else
ee95669f
LP		 349 /* Everything else we assume to be normal service names */
350 r = sysv_translate_name(n);
2c4104f0 351
32159d3a 352 if (!r)
2c4104f0
LP		 353 return -ENOMEM;
354
355finish:
b4353094 356 *_r = r;
2c4104f0
LP		 357
358 return 1;
359}
360
56d748b4 361static int sysv_fix_order(Service *s) {
2c4104f0
LP		 362 Meta *other;
363 int r;
364
365 assert(s);
366
367 if (s->sysv_start_priority < 0)
368 return 0;
369
23a177ef
LP		 370 /* For each pair of services where at least one lacks a LSB
371 * header, we use the start priority value to order things. */
2c4104f0 372
ab5c3e3f 373 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
2c4104f0
LP		 374 Service *t;
375 UnitDependency d;
eeaafddc 376 bool special_s, special_t;
2c4104f0
LP		 377
378 t = (Service*) other;
379
380 if (s == t)
381 continue;
9f151f29
LP		 382
383 if (t->meta.load_state != UNIT_LOADED)
384 continue;
2c4104f0
LP		 385
386 if (t->sysv_start_priority < 0)
387 continue;
388
51a1a79d
LP		 389 /* If both units have modern headers we don't care
390 * about the priorities */
f21781d5
LP		 391 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
392 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 393 continue;
394
eeaafddc
LP		 395 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
396 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
397
398 if (special_t && !special_s)
399 d = UNIT_AFTER;
400 else if (special_s && !special_t)
401 d = UNIT_BEFORE;
402 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 403 d = UNIT_AFTER;
404 else if (t->sysv_start_priority > s->sysv_start_priority)
405 d = UNIT_BEFORE;
406 else
407 continue;
408
409 /* FIXME: Maybe we should compare the name here lexicographically? */
410
da19d5c1 411 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 412 return r;
413 }
414
415 return 0;
416}
417
418static ExecCommand *exec_command_new(const char *path, const char *arg1) {
419 ExecCommand *c;
420
421 if (!(c = new0(ExecCommand, 1)))
422 return NULL;
423
424 if (!(c->path = strdup(path))) {
425 free(c);
426 return NULL;
427 }
428
429 if (!(c->argv = strv_new(path, arg1, NULL))) {
430 free(c->path);
431 free(c);
432 return NULL;
433 }
434
435 return c;
436}
437
438static int sysv_exec_commands(Service *s) {
439 ExecCommand *c;
440
441 assert(s);
442 assert(s->sysv_path);
443
444 if (!(c = exec_command_new(s->sysv_path, "start")))
445 return -ENOMEM;
446 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
447
448 if (!(c = exec_command_new(s->sysv_path, "stop")))
449 return -ENOMEM;
450 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
451
452 if (!(c = exec_command_new(s->sysv_path, "reload")))
453 return -ENOMEM;
454 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
455
456 return 0;
457}
458
e537352b 459static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 460 FILE *f;
461 Unit *u;
462 unsigned line = 0;
463 int r;
464 enum {
465 NORMAL,
466 DESCRIPTION,
467 LSB,
468 LSB_DESCRIPTION
469 } state = NORMAL;
0b5d26f9 470 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
5f4b19f4 471 struct stat st;
23a177ef
LP		 472
473 assert(s);
474 assert(path);
2c4104f0
LP		 475
476 u = UNIT(s);
477
478 if (!(f = fopen(path, "re"))) {
479 r = errno == ENOENT ? 0 : -errno;
480 goto finish;
481 }
482
5f4b19f4
LP		 483 zero(st);
484 if (fstat(fileno(f), &st) < 0) {
485 r = -errno;
486 goto finish;
487 }
488
2c4104f0
LP		 489 free(s->sysv_path);
490 if (!(s->sysv_path = strdup(path))) {
491 r = -ENOMEM;
492 goto finish;
493 }
494
5f4b19f4
LP		 495 s->sysv_mtime = timespec_load(&st.st_mtim);
496
497 if (null_or_empty(&st)) {
498 u->meta.load_state = UNIT_MASKED;
499 r = 0;
500 goto finish;
501 }
502
2c4104f0
LP		 503 while (!feof(f)) {
504 char l[LINE_MAX], *t;
505
506 if (!fgets(l, sizeof(l), f)) {
507 if (feof(f))
508 break;
509
510 r = -errno;
511 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
512 goto finish;
513 }
514
515 line++;
516
517 t = strstrip(l);
518 if (*t != '#')
519 continue;
520
521 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
522 state = LSB;
23a177ef 523 s->sysv_has_lsb = true;
2c4104f0
LP		 524 continue;
525 }
526
527 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
528 state = NORMAL;
529 continue;
530 }
531
532 t++;
533 t += strspn(t, WHITESPACE);
534
535 if (state == NORMAL) {
536
537 /* Try to parse Red Hat style chkconfig headers */
538
c2b35af6 539 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 540 int start_priority;
8309400a 541 char runlevels[16], *k;
2c4104f0
LP		 542
543 state = NORMAL;
544
8309400a
LP		 545 if (sscanf(t+10, "%15s %i %*i",
546 runlevels,
547 &start_priority) != 2) {
2c4104f0
LP		 548
549 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
550 continue;
551 }
552
fbe9f3a9
LP		 553 /* A start priority gathered from the
554 * symlink farms is preferred over the
555 * data from the LSB header. */
8309400a 556 if (start_priority < 0 || start_priority > 99)
2c4104f0 557 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
ea87ca5a 558 else
8309400a
LP		 559 s->sysv_start_priority = start_priority;
560
561 char_array_0(runlevels);
562 k = delete_chars(runlevels, WHITESPACE "-");
563
564 if (k[0]) {
565 char *d;
566
567 if (!(d = strdup(k))) {
568 r = -ENOMEM;
569 goto finish;
570 }
571
572 free(s->sysv_runlevels);
573 s->sysv_runlevels = d;
2c4104f0
LP		 574 }
575
0b5d26f9 576 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 577
578 size_t k = strlen(t);
579 char *d;
0b5d26f9 580 const char *j;
2c4104f0
LP		 581
582 if (t[k-1] == '\\') {
583 state = DESCRIPTION;
584 t[k-1] = 0;
585 }
586
0b5d26f9
LP		 587 if ((j = strstrip(t+12)) && *j) {
588 if (!(d = strdup(j))) {
589 r = -ENOMEM;
590 goto finish;
591 }
592 } else
593 d = NULL;
2c4104f0 594
0b5d26f9
LP		 595 free(chkconfig_description);
596 chkconfig_description = d;
2c4104f0 597
c2b35af6 598 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 599
600 char *fn;
601
602 state = NORMAL;
603
604 fn = strstrip(t+8);
605 if (!path_is_absolute(fn)) {
606 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
607 continue;
608 }
609
610 if (!(fn = strdup(fn))) {
611 r = -ENOMEM;
612 goto finish;
613 }
614
615 free(s->pid_file);
616 s->pid_file = fn;
617 }
618
619 } else if (state == DESCRIPTION) {
620
621 /* Try to parse Red Hat style description
622 * continuation */
623
624 size_t k = strlen(t);
0b5d26f9 625 char *j;
2c4104f0
LP		 626
627 if (t[k-1] == '\\')
628 t[k-1] = 0;
629 else
630 state = NORMAL;
631
0b5d26f9
LP		 632 if ((j = strstrip(t)) && *j) {
633 char *d = NULL;
634
635 if (chkconfig_description)
44d91056 636 d = join(chkconfig_description, " ", j, NULL);
0b5d26f9
LP		 637 else
638 d = strdup(j);
2c4104f0 639
0b5d26f9
LP		 640 if (!d) {
641 r = -ENOMEM;
642 goto finish;
643 }
644
645 free(chkconfig_description);
646 chkconfig_description = d;
647 }
2c4104f0
LP		 648
649 } else if (state == LSB || state == LSB_DESCRIPTION) {
650
c2b35af6 651 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 652 char *i, *w;
653 size_t z;
654
655 state = LSB;
656
f60f22df 657 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 658 char *n, *m;
659
660 if (!(n = strndup(w, z))) {
661 r = -ENOMEM;
662 goto finish;
663 }
664
ee95669f 665 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 666 free(n);
667
668 if (r < 0)
669 goto finish;
670
671 if (r == 0)
672 continue;
673
bd77d0fc
LP		 674 if (unit_name_to_type(m) == UNIT_SERVICE)
675 r = unit_add_name(u, m);
9700edb4
LP		 676 else
677 /* NB: SysV targets
678 * which are provided
679 * by a service are
680 * pulled in by the
681 * services, as an
682 * indication that the
683 * generic service is
684 * now available. This
685 * is strictly
686 * one-way. The
687 * targets do NOT pull
688 * in the SysV
689 * services! */
690 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 691
2c4104f0 692 if (r < 0)
43a37549 693 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 694
695 free(m);
2c4104f0
LP		 696 }
697
c2b35af6
LP		 698 } else if (startswith_no_case(t, "Required-Start:") ||
699 startswith_no_case(t, "Should-Start:") ||
700 startswith_no_case(t, "X-Start-Before:") ||
701 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 702 char *i, *w;
703 size_t z;
704
705 state = LSB;
706
f60f22df 707 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 708 char *n, *m;
709
710 if (!(n = strndup(w, z))) {
711 r = -ENOMEM;
712 goto finish;
713 }
714
ee95669f 715 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 716
e83c7c0b
LP		 717 if (r < 0) {
718 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
719 free(n);
720 continue;
721 }
722
723 free(n);
2c4104f0
LP		 724
725 if (r == 0)
726 continue;
727
c2b35af6 728 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 729
730 if (r < 0)
43a37549 731 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 732
733 free(m);
2c4104f0 734 }
c2b35af6 735 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 736 char *k, *d;
737
738 state = LSB;
739
740 k = delete_chars(t+14, WHITESPACE "-");
741
742 if (k[0] != 0) {
743 if (!(d = strdup(k))) {
744 r = -ENOMEM;
745 goto finish;
746 }
747
748 free(s->sysv_runlevels);
749 s->sysv_runlevels = d;
750 }
2c4104f0 751
0b5d26f9
LP		 752 } else if (startswith_no_case(t, "Description:")) {
753 char *d, *j;
ed4c1cc6 754
2c4104f0
LP		 755 state = LSB_DESCRIPTION;
756
0b5d26f9
LP		 757 if ((j = strstrip(t+12)) && *j) {
758 if (!(d = strdup(j))) {
759 r = -ENOMEM;
760 goto finish;
761 }
762 } else
763 d = NULL;
2c4104f0 764
0b5d26f9
LP		 765 free(long_description);
766 long_description = d;
2c4104f0 767
ed4c1cc6 768 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 769 char *d, *j;
2c4104f0 770
2c4104f0
LP		 771 state = LSB;
772
0b5d26f9
LP		 773 if ((j = strstrip(t+18)) && *j) {
774 if (!(d = strdup(j))) {
775 r = -ENOMEM;
776 goto finish;
777 }
778 } else
779 d = NULL;
2c4104f0 780
0b5d26f9
LP		 781 free(short_description);
782 short_description = d;
2c4104f0
LP		 783
784 } else if (state == LSB_DESCRIPTION) {
785
786 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 787 char *j;
2c4104f0 788
0b5d26f9
LP		 789 if ((j = strstrip(t)) && *j) {
790 char *d = NULL;
791
792 if (long_description)
44d91056 793 d = join(long_description, " ", t, NULL);
0b5d26f9
LP		 794 else
795 d = strdup(j);
796
797 if (!d) {
798 r = -ENOMEM;
799 goto finish;
800 }
801
802 free(long_description);
803 long_description = d;
2c4104f0
LP		 804 }
805
2c4104f0
LP		 806 } else
807 state = LSB;
808 }
809 }
810 }
811
2c4104f0
LP		 812 if ((r = sysv_exec_commands(s)) < 0)
813 goto finish;
814
a40eb732 815 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 816 /* If there a runlevels configured for this service
817 * but none of the standard ones, then we assume this
818 * is some special kind of service (which might be
819 * needed for early boot) and don't create any links
820 * to it. */
821
a40eb732 822 s->meta.default_dependencies = false;
09cd1ab1 823
09cd1ab1
LP		 824 /* Don't timeout special services during boot (like fsck) */
825 s->timeout_usec = 0;
f34277d9
LP		 826 } else
827 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 828
80876c20 829 /* Special setting for all SysV services */
1f48cf56 830 s->type = SERVICE_FORKING;
f8788303 831 s->remain_after_exit = !s->pid_file;
525ee6f4 832 s->restart = SERVICE_RESTART_NO;
4dfc092a
LP		 833
834 if (s->meta.manager->sysv_console)
835 s->exec_context.std_output = EXEC_OUTPUT_TTY;
836
cd25cce9 837 s->exec_context.kill_mode = KILL_PROCESS;
80876c20 838
0b5d26f9
LP		 839 /* We use the long description only if
840 * no short description is set. */
841
842 if (short_description)
843 description = short_description;
844 else if (chkconfig_description)
845 description = chkconfig_description;
846 else if (long_description)
847 description = long_description;
848 else
849 description = NULL;
850
851 if (description) {
852 char *d;
853
e527618d 854 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 855 r = -ENOMEM;
856 goto finish;
857 }
858
859 u->meta.description = d;
860 }
861
ea87ca5a
LP		 862 /* The priority that has been set in /etc/rcN.d/ hierarchies
863 * takes precedence over what is stored as default in the LSB
864 * header */
865 if (s->sysv_start_priority_from_rcnd >= 0)
866 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
867
e537352b 868 u->meta.load_state = UNIT_LOADED;
23a177ef 869 r = 0;
2c4104f0
LP		 870
871finish:
872
873 if (f)
874 fclose(f);
875
0b5d26f9
LP		 876 free(short_description);
877 free(long_description);
878 free(chkconfig_description);
879
2c4104f0
LP		 880 return r;
881}
882
e537352b 883static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 884 char **p;
885
886 assert(s);
887 assert(name);
888
e1992852 889 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 890 * prefixes/suffixes. */
1bd8b818 891#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198 892 if (endswith(name, ".sh.service"))
d017c6ca 893 return -ENOENT;
5b819198
MB		 894#endif
895
896#ifdef TARGET_SUSE
897 if (startswith(name, "boot."))
898 return -ENOENT;
899#endif
900
901#ifdef TARGET_FRUGALWARE
902 if (startswith(name, "rc."))
903 return -ENOENT;
904#endif
d017c6ca 905
4cd1fbcc 906 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 907 char *path;
908 int r;
909
44d91056
LP		 910 path = join(*p, "/", name, NULL);
911 if (!path)
2c4104f0
LP		 912 return -ENOMEM;
913
914 assert(endswith(path, ".service"));
915 path[strlen(path)-8] = 0;
916
e537352b 917 r = service_load_sysv_path(s, path);
fbe9f3a9 918
1bd8b818 919#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
4cd1fbcc 920 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 921 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 922 strcat(path, ".sh");
923 r = service_load_sysv_path(s, path);
924 }
e1992852 925#endif
2c4104f0
LP		 926 free(path);
927
e1992852 928#ifdef TARGET_SUSE
4cd1fbcc 929 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 930 /* Try SUSE style boot.* init scripts */
fbe9f3a9 931
44d91056
LP		 932 path = join(*p, "/boot.", name, NULL);
933 if (!path)
fbe9f3a9
LP		 934 return -ENOMEM;
935
e1992852 936 /* Drop .service suffix */
fbe9f3a9
LP		 937 path[strlen(path)-8] = 0;
938 r = service_load_sysv_path(s, path);
939 free(path);
940 }
e1992852 941#endif
fbe9f3a9 942
e1992852 943#ifdef TARGET_FRUGALWARE
65530632 944 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 945 /* Try Frugalware style rc.* init scripts */
65530632 946
44d91056
LP		 947 path = join(*p, "/rc.", name, NULL);
948 if (!path)
65530632
MV		 949 return -ENOMEM;
950
e1992852 951 /* Drop .service suffix */
65530632
MV		 952 path[strlen(path)-8] = 0;
953 r = service_load_sysv_path(s, path);
954 free(path);
955 }
e1992852 956#endif
65530632 957
23a177ef 958 if (r < 0)
2c4104f0 959 return r;
23a177ef 960
4cd1fbcc 961 if ((s->meta.load_state != UNIT_STUB))
23a177ef 962 break;
2c4104f0
LP		 963 }
964
965 return 0;
966}
967
e537352b 968static int service_load_sysv(Service *s) {
2c4104f0
LP		 969 const char *t;
970 Iterator i;
971 int r;
972
5cb5a6ff
LP		 973 assert(s);
974
975 /* Load service data from SysV init scripts, preferably with
976 * LSB headers ... */
977
4cd1fbcc 978 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 979 return 0;
980
4cd1fbcc 981 if ((t = s->meta.id))
e537352b 982 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 983 return r;
984
4cd1fbcc
LP		 985 if (s->meta.load_state == UNIT_STUB)
986 SET_FOREACH(t, s->meta.names, i) {
987 if (t == s->meta.id)
e537352b
LP		 988 continue;
989
e364ad06 990 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 991 return r;
992
4cd1fbcc 993 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 994 break;
995 }
2c4104f0
LP		 996
997 return 0;
5cb5a6ff 998}
07459bb6 999#endif
5cb5a6ff 1000
9fff8a1f
LP		 1001static int fsck_fix_order(Service *s) {
1002 Meta *other;
1003 int r;
1004
1005 assert(s);
1006
1007 if (s->fsck_passno <= 0)
1008 return 0;
1009
1010 /* For each pair of services where both have an fsck priority
1011 * we order things based on it. */
1012
ab5c3e3f 1013 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1014 Service *t;
1015 UnitDependency d;
1016
1017 t = (Service*) other;
1018
1019 if (s == t)
1020 continue;
1021
1022 if (t->meta.load_state != UNIT_LOADED)
1023 continue;
1024
1025 if (t->fsck_passno <= 0)
1026 continue;
1027
1028 if (t->fsck_passno < s->fsck_passno)
1029 d = UNIT_AFTER;
1030 else if (t->fsck_passno > s->fsck_passno)
1031 d = UNIT_BEFORE;
1032 else
1033 continue;
1034
da19d5c1 1035 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1036 return r;
1037 }
1038
1039 return 0;
1040}
1041
243b1432
LP		 1042static int service_verify(Service *s) {
1043 assert(s);
1044
4cd1fbcc 1045 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1046 return 0;
1047
1048 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1049 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1050 return -EINVAL;
1051 }
1052
34e9ba66
LP		 1053 if (s->type != SERVICE_ONESHOT &&
1054 s->exec_command[SERVICE_EXEC_START]->command_next) {
1055 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1056 return -EINVAL;
1057 }
1058
c06b7a15
LP		 1059 if (s->type == SERVICE_ONESHOT &&
1060 s->exec_command[SERVICE_EXEC_RELOAD]) {
1061 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1062 return -EINVAL;
1063 }
1064
05e343b7 1065 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1066 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1067 return -EINVAL;
1068 }
1069
2e22afe9 1070 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1071 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1072 return -EINVAL;
1073 }
1074
243b1432
LP		 1075 return 0;
1076}
1077
a40eb732
LP		 1078static int service_add_default_dependencies(Service *s) {
1079 int r;
1080
1081 assert(s);
1082
1083 /* Add a number of automatic dependencies useful for the
1084 * majority of services. */
1085
1086 /* First, pull in base system */
1087 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1088
1089 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1090 return r;
1091
af2d49f7 1092 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1093
1094 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1095 return r;
1096 }
1097
1098 /* Second, activate normal shutdown */
ead8e478 1099 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1100}
1101
4dfc092a
LP		 1102static void service_fix_output(Service *s) {
1103 assert(s);
1104
1105 /* If nothing has been explicitly configured, patch default
1106 * output in. If input is socket/tty we avoid this however,
1107 * since in that case we want output to default to the same
1108 * place as we read input from. */
1109
1110 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1111 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1112 s->exec_context.std_input == EXEC_INPUT_NULL)
1113 s->exec_context.std_error = s->meta.manager->default_std_error;
1114
1115 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1116 s->exec_context.std_input == EXEC_INPUT_NULL)
1117 s->exec_context.std_output = s->meta.manager->default_std_output;
1118}
1119
e537352b
LP		 1120static int service_load(Unit *u) {
1121 int r;
1122 Service *s = SERVICE(u);
1123
1124 assert(s);
1e2e8133 1125
5cb5a6ff 1126 /* Load a .service file */
e537352b 1127 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1128 return r;
1129
07459bb6 1130#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1131 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1132 if (u->meta.load_state == UNIT_STUB)
1133 if ((r = service_load_sysv(s)) < 0)
23a177ef 1134 return r;
07459bb6 1135#endif
d46de8a1 1136
23a177ef 1137 /* Still nothing found? Then let's give up */
e537352b 1138 if (u->meta.load_state == UNIT_STUB)
23a177ef 1139 return -ENOENT;
034c6ed7 1140
23a177ef
LP		 1141 /* We were able to load something, then let's add in the
1142 * dropin directories. */
1143 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1144 return r;
23a177ef
LP		 1145
1146 /* This is a new unit? Then let's add in some extras */
e537352b 1147 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1148 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1149 return r;
1150
d686d8a9 1151 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1152 return r;
1153
07459bb6 1154#ifdef HAVE_SYSV_COMPAT
56d748b4 1155 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1156 return r;
07459bb6 1157#endif
05e343b7 1158
9fff8a1f
LP		 1159 if ((r = fsck_fix_order(s)) < 0)
1160 return r;
1161
ee0dd802 1162 if (s->bus_name)
05e343b7 1163 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1164 return r;
c952c6ec
LP		 1165
1166 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1167 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1168
1169 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1170 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1171 return r;
1172
1173 if (s->meta.default_dependencies)
1174 if ((r = service_add_default_dependencies(s)) < 0)
1175 return r;
4dfc092a
LP		 1176
1177 service_fix_output(s);
8e274523
LP		 1178 }
1179
243b1432 1180 return service_verify(s);
034c6ed7
LP		 1181}
1182
87f0e418 1183static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1184
5cb5a6ff 1185 ServiceExecCommand c;
87f0e418 1186 Service *s = SERVICE(u);
47be870b
LP		 1187 const char *prefix2;
1188 char *p2;
5cb5a6ff
LP		 1189
1190 assert(s);
1191
47be870b
LP		 1192 p2 = strappend(prefix, "\t");
1193 prefix2 = p2 ? p2 : prefix;
44d8db9e 1194
5cb5a6ff 1195 fprintf(f,
81a2b7ce
LP		 1196 "%sService State: %s\n"
1197 "%sPermissionsStartOnly: %s\n"
8e274523 1198 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1199 "%sRemainAfterExit: %s\n"
3185a36b 1200 "%sGuessMainPID: %s\n"
c952c6ec 1201 "%sType: %s\n"
2cf3143a 1202 "%sRestart: %s\n"
c952c6ec 1203 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1204 prefix, service_state_to_string(s->state),
1205 prefix, yes_no(s->permissions_start_only),
8e274523 1206 prefix, yes_no(s->root_directory_start_only),
02ee865a 1207 prefix, yes_no(s->remain_after_exit),
3185a36b 1208 prefix, yes_no(s->guess_main_pid),
c952c6ec 1209 prefix, service_type_to_string(s->type),
2cf3143a 1210 prefix, service_restart_to_string(s->restart),
c952c6ec 1211 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1212
70123e68
LP		 1213 if (s->control_pid > 0)
1214 fprintf(f,
bb00e604
LP		 1215 "%sControl PID: %lu\n",
1216 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1217
1218 if (s->main_pid > 0)
1219 fprintf(f,
6dfa5494
LP		 1220 "%sMain PID: %lu\n"
1221 "%sMain PID Known: %s\n"
1222 "%sMain PID Alien: %s\n",
1223 prefix, (unsigned long) s->main_pid,
1224 prefix, yes_no(s->main_pid_known),
1225 prefix, yes_no(s->main_pid_alien));
70123e68 1226
034c6ed7
LP		 1227 if (s->pid_file)
1228 fprintf(f,
1229 "%sPIDFile: %s\n",
1230 prefix, s->pid_file);
1231
05e343b7
LP		 1232 if (s->bus_name)
1233 fprintf(f,
1234 "%sBusName: %s\n"
1235 "%sBus Name Good: %s\n",
1236 prefix, s->bus_name,
1237 prefix, yes_no(s->bus_name_good));
1238
5cb5a6ff
LP		 1239 exec_context_dump(&s->exec_context, f, prefix);
1240
e537352b 1241 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1242
44d8db9e
LP		 1243 if (!s->exec_command[c])
1244 continue;
1245
40d50879 1246 fprintf(f, "%s-> %s:\n",
94f04347 1247 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1248
1249 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1250 }
44d8db9e 1251
07459bb6 1252#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1253 if (s->sysv_path)
1254 fprintf(f,
23a177ef 1255 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1256 "%sSysV Init Script has LSB Header: %s\n"
1257 "%sSysVEnabled: %s\n",
23a177ef 1258 prefix, s->sysv_path,
9fff8a1f
LP		 1259 prefix, yes_no(s->sysv_has_lsb),
1260 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1261
1262 if (s->sysv_start_priority >= 0)
1263 fprintf(f,
9fff8a1f
LP		 1264 "%sSysVStartPriority: %i\n",
1265 prefix, s->sysv_start_priority);
2c4104f0 1266
8309400a
LP		 1267 if (s->sysv_runlevels)
1268 fprintf(f, "%sSysVRunLevels: %s\n",
1269 prefix, s->sysv_runlevels);
07459bb6 1270#endif
23a177ef 1271
9fff8a1f
LP		 1272 if (s->fsck_passno > 0)
1273 fprintf(f,
1274 "%sFsckPassNo: %i\n",
1275 prefix, s->fsck_passno);
1276
8c47c732
LP		 1277 if (s->status_text)
1278 fprintf(f, "%sStatus Text: %s\n",
1279 prefix, s->status_text);
1280
47be870b 1281 free(p2);
5cb5a6ff
LP		 1282}
1283
5375410b 1284static int service_load_pid_file(Service *s, bool warn_if_missing) {
034c6ed7 1285 char *k;
034c6ed7 1286 int r;
5925dd3c 1287 pid_t pid;
034c6ed7
LP		 1288
1289 assert(s);
1290
034c6ed7 1291 if (!s->pid_file)
13230d5d 1292 return -ENOENT;
034c6ed7 1293
5375410b
MS		 1294 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1295 if (warn_if_missing)
1296 log_warning("Failed to read PID file %s after %s. The service might be broken.",
1297 s->pid_file, service_state_to_string(s->state));
034c6ed7 1298 return r;
5375410b 1299 }
034c6ed7 1300
5925dd3c
LP		 1301 r = parse_pid(k, &pid);
1302 free(k);
034c6ed7 1303
5925dd3c
LP		 1304 if (r < 0)
1305 return r;
406eaf93 1306
5925dd3c
LP		 1307 if (kill(pid, 0) < 0 && errno != EPERM) {
1308 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1309 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1310 return -ESRCH;
1311 }
1312
db01f8b3
MS		 1313 if (s->main_pid_known) {
1314 if (pid == s->main_pid)
1315 return 0;
1316
1317 log_debug("Main PID changing: %lu -> %lu",
1318 (unsigned long) s->main_pid, (unsigned long) pid);
1319 service_unwatch_main_pid(s);
1320 s->main_pid_known = false;
1321 }
1322
5925dd3c 1323 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1324 return r;
1325
5925dd3c
LP		 1326 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1327 /* FIXME: we need to do something here */
1328 return r;
034c6ed7
LP		 1329
1330 return 0;
1331}
1332
4fbf50b3
LP		 1333static int service_search_main_pid(Service *s) {
1334 pid_t pid;
1335 int r;
1336
1337 assert(s);
1338
3185a36b
LP		 1339 /* If we know it anyway, don't ever fallback to unreliable
1340 * heuristics */
4fbf50b3
LP		 1341 if (s->main_pid_known)
1342 return 0;
1343
3185a36b
LP		 1344 if (!s->guess_main_pid)
1345 return 0;
1346
4fbf50b3
LP		 1347 assert(s->main_pid <= 0);
1348
1349 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1350 return -ENOENT;
1351
1352 if ((r = service_set_main_pid(s, pid)) < 0)
1353 return r;
1354
1355 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1356 /* FIXME: we need to do something here */
1357 return r;
1358
1359 return 0;
1360}
1361
3e33402a
LP		 1362static int service_get_sockets(Service *s, Set **_set) {
1363 Set *set;
ceee3d82
LP		 1364 Iterator i;
1365 char *t;
3e33402a 1366 int r;
ceee3d82
LP		 1367
1368 assert(s);
3e33402a
LP		 1369 assert(_set);
1370
6cf6bbc2
LP		 1371 if (s->socket_fd >= 0)
1372 return 0;
1373
f976f3f6
LP		 1374 if (!set_isempty(s->configured_sockets))
1375 return 0;
1376
3e33402a
LP		 1377 /* Collects all Socket objects that belong to this
1378 * service. Note that a service might have multiple sockets
1379 * via multiple names. */
1380
1381 if (!(set = set_new(NULL, NULL)))
1382 return -ENOMEM;
ceee3d82 1383
4cd1fbcc 1384 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1385 char *k;
1386 Unit *p;
1387
1388 /* Look for all socket objects that go by any of our
1389 * units and collect their fds */
1390
3e33402a
LP		 1391 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1392 r = -ENOMEM;
1393 goto fail;
1394 }
ceee3d82 1395
4cd1fbcc 1396 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1397 free(k);
1398
8d567588
LP		 1399 if (!p)
1400 continue;
ceee3d82 1401
3e33402a
LP		 1402 if ((r = set_put(set, p)) < 0)
1403 goto fail;
ceee3d82
LP		 1404 }
1405
3e33402a
LP		 1406 *_set = set;
1407 return 0;
1408
1409fail:
1410 set_free(set);
1411 return r;
1412}
1413
e537352b 1414static int service_notify_sockets_dead(Service *s) {
3e33402a 1415 Iterator i;
f976f3f6 1416 Set *set, *free_set = NULL;
47be870b 1417 Socket *sock;
3e33402a
LP		 1418 int r;
1419
1420 assert(s);
1421
f976f3f6
LP		 1422 /* Notifies all our sockets when we die */
1423
6cf6bbc2
LP		 1424 if (s->socket_fd >= 0)
1425 return 0;
1426
f976f3f6
LP		 1427 if (!set_isempty(s->configured_sockets))
1428 set = s->configured_sockets;
1429 else {
1430 if ((r = service_get_sockets(s, &free_set)) < 0)
1431 return r;
1432
1433 set = free_set;
1434 }
3e33402a 1435
47be870b
LP		 1436 SET_FOREACH(sock, set, i)
1437 socket_notify_service_dead(sock);
3e33402a 1438
f976f3f6 1439 set_free(free_set);
3e33402a 1440
ceee3d82
LP		 1441 return 0;
1442}
1443
034c6ed7
LP		 1444static void service_set_state(Service *s, ServiceState state) {
1445 ServiceState old_state;
5cb5a6ff
LP		 1446 assert(s);
1447
034c6ed7 1448 old_state = s->state;
5cb5a6ff 1449 s->state = state;
034c6ed7
LP		 1450
1451 if (state != SERVICE_START_PRE &&
1452 state != SERVICE_START &&
1453 state != SERVICE_START_POST &&
1454 state != SERVICE_RELOAD &&
1455 state != SERVICE_STOP &&
1456 state != SERVICE_STOP_SIGTERM &&
1457 state != SERVICE_STOP_SIGKILL &&
1458 state != SERVICE_STOP_POST &&
1459 state != SERVICE_FINAL_SIGTERM &&
1460 state != SERVICE_FINAL_SIGKILL &&
1461 state != SERVICE_AUTO_RESTART)
acbb0225 1462 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1463
7d55e835
LP		 1464 if (state != SERVICE_START &&
1465 state != SERVICE_START_POST &&
034c6ed7
LP		 1466 state != SERVICE_RUNNING &&
1467 state != SERVICE_RELOAD &&
1468 state != SERVICE_STOP &&
1469 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1470 state != SERVICE_STOP_SIGKILL) {
5e94833f 1471 service_unwatch_main_pid(s);
867b3b7d
LP		 1472 s->main_command = NULL;
1473 }
034c6ed7
LP		 1474
1475 if (state != SERVICE_START_PRE &&
1476 state != SERVICE_START &&
1477 state != SERVICE_START_POST &&
1478 state != SERVICE_RELOAD &&
1479 state != SERVICE_STOP &&
1480 state != SERVICE_STOP_SIGTERM &&
1481 state != SERVICE_STOP_SIGKILL &&
1482 state != SERVICE_STOP_POST &&
1483 state != SERVICE_FINAL_SIGTERM &&
e537352b 1484 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1485 service_unwatch_control_pid(s);
034c6ed7 1486 s->control_command = NULL;
a16e1123 1487 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1488 }
034c6ed7 1489
ceee3d82
LP		 1490 if (state == SERVICE_DEAD ||
1491 state == SERVICE_STOP ||
1492 state == SERVICE_STOP_SIGTERM ||
1493 state == SERVICE_STOP_SIGKILL ||
1494 state == SERVICE_STOP_POST ||
1495 state == SERVICE_FINAL_SIGTERM ||
1496 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1497 state == SERVICE_FAILED ||
ceee3d82 1498 state == SERVICE_AUTO_RESTART)
e537352b 1499 service_notify_sockets_dead(s);
ceee3d82 1500
4f2d528d
LP		 1501 if (state != SERVICE_START_PRE &&
1502 state != SERVICE_START &&
6cf6bbc2
LP		 1503 state != SERVICE_START_POST &&
1504 state != SERVICE_RUNNING &&
1505 state != SERVICE_RELOAD &&
1506 state != SERVICE_STOP &&
1507 state != SERVICE_STOP_SIGTERM &&
1508 state != SERVICE_STOP_SIGKILL &&
1509 state != SERVICE_STOP_POST &&
1510 state != SERVICE_FINAL_SIGTERM &&
1511 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1512 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1513 service_close_socket_fd(s);
6cf6bbc2
LP		 1514 service_connection_unref(s);
1515 }
4f2d528d 1516
f6023656
LP		 1517 /* For the inactive states unit_notify() will trim the cgroup,
1518 * but for exit we have to do that ourselves... */
a7556052 1519 if (state == SERVICE_EXITED && s->meta.manager->n_reloading <= 0)
f6023656
LP		 1520 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1521
e537352b 1522 if (old_state != state)
4cd1fbcc 1523 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1524
e2f3b44c
LP		 1525 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1526 s->reload_failure = false;
034c6ed7
LP		 1527}
1528
a16e1123
LP		 1529static int service_coldplug(Unit *u) {
1530 Service *s = SERVICE(u);
1531 int r;
1532
1533 assert(s);
1534 assert(s->state == SERVICE_DEAD);
1535
1536 if (s->deserialized_state != s->state) {
1537
1538 if (s->deserialized_state == SERVICE_START_PRE ||
1539 s->deserialized_state == SERVICE_START ||
1540 s->deserialized_state == SERVICE_START_POST ||
1541 s->deserialized_state == SERVICE_RELOAD ||
1542 s->deserialized_state == SERVICE_STOP ||
1543 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1544 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1545 s->deserialized_state == SERVICE_STOP_POST ||
1546 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1547 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1548 s->deserialized_state == SERVICE_AUTO_RESTART) {
1549
1550 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1551 usec_t k;
1552
1553 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1554
1555 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1556 return r;
1557 }
1558 }
a16e1123
LP		 1559
1560 if ((s->deserialized_state == SERVICE_START &&
1561 (s->type == SERVICE_FORKING ||
8c47c732 1562 s->type == SERVICE_DBUS ||
34e9ba66 1563 s->type == SERVICE_ONESHOT ||
8c47c732 1564 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1565 s->deserialized_state == SERVICE_START_POST ||
1566 s->deserialized_state == SERVICE_RUNNING ||
1567 s->deserialized_state == SERVICE_RELOAD ||
1568 s->deserialized_state == SERVICE_STOP ||
1569 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1570 s->deserialized_state == SERVICE_STOP_SIGKILL)
1571 if (s->main_pid > 0)
1572 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1573 return r;
1574
1575 if (s->deserialized_state == SERVICE_START_PRE ||
1576 s->deserialized_state == SERVICE_START ||
1577 s->deserialized_state == SERVICE_START_POST ||
1578 s->deserialized_state == SERVICE_RELOAD ||
1579 s->deserialized_state == SERVICE_STOP ||
1580 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1581 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1582 s->deserialized_state == SERVICE_STOP_POST ||
1583 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1584 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1585 if (s->control_pid > 0)
1586 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1587 return r;
1588
1589 service_set_state(s, s->deserialized_state);
1590 }
1591
1592 return 0;
1593}
1594
44d8db9e
LP		 1595static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1596 Iterator i;
1597 int r;
1598 int *rfds = NULL;
1599 unsigned rn_fds = 0;
f976f3f6 1600 Set *set, *free_set = NULL;
47be870b 1601 Socket *sock;
44d8db9e
LP		 1602
1603 assert(s);
1604 assert(fds);
1605 assert(n_fds);
1606
6cf6bbc2
LP		 1607 if (s->socket_fd >= 0)
1608 return 0;
1609
f976f3f6
LP		 1610 if (!set_isempty(s->configured_sockets))
1611 set = s->configured_sockets;
1612 else {
1613 if ((r = service_get_sockets(s, &free_set)) < 0)
1614 return r;
1615
1616 set = free_set;
1617 }
3e33402a 1618
47be870b 1619 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1620 int *cfds;
1621 unsigned cn_fds;
1622
47be870b 1623 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1624 goto fail;
1625
1626 if (!cfds)
1627 continue;
1628
1629 if (!rfds) {
1630 rfds = cfds;
1631 rn_fds = cn_fds;
1632 } else {
1633 int *t;
1634
1635 if (!(t = new(int, rn_fds+cn_fds))) {
1636 free(cfds);
1637 r = -ENOMEM;
1638 goto fail;
1639 }
1640
9c1b183c
LP		 1641 memcpy(t, rfds, rn_fds * sizeof(int));
1642 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1643 free(rfds);
1644 free(cfds);
1645
1646 rfds = t;
1647 rn_fds = rn_fds+cn_fds;
1648 }
1649 }
1650
1651 *fds = rfds;
1652 *n_fds = rn_fds;
3e33402a 1653
f976f3f6 1654 set_free(free_set);
3e33402a 1655
44d8db9e
LP		 1656 return 0;
1657
1658fail:
3e33402a 1659 set_free(set);
44d8db9e 1660 free(rfds);
3e33402a 1661
44d8db9e
LP		 1662 return r;
1663}
1664
81a2b7ce
LP		 1665static int service_spawn(
1666 Service *s,
1667 ExecCommand *c,
1668 bool timeout,
1669 bool pass_fds,
1670 bool apply_permissions,
1671 bool apply_chroot,
1e3ad081 1672 bool apply_tty_stdin,
c952c6ec 1673 bool set_notify_socket,
81a2b7ce
LP		 1674 pid_t *_pid) {
1675
034c6ed7
LP		 1676 pid_t pid;
1677 int r;
6cf6bbc2 1678 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1679 unsigned n_fds = 0, n_env = 0;
1680 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1681
1682 assert(s);
1683 assert(c);
1684 assert(_pid);
1685
6cf6bbc2
LP		 1686 if (pass_fds ||
1687 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1688 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1689 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1690
4f2d528d
LP		 1691 if (s->socket_fd >= 0) {
1692 fds = &s->socket_fd;
1693 n_fds = 1;
6cf6bbc2
LP		 1694 } else {
1695 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1696 goto fail;
1697
1698 fds = fdsbuf;
1699 }
4f2d528d 1700 }
44d8db9e 1701
e558336f 1702 if (timeout && s->timeout_usec) {
acbb0225 1703 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1704 goto fail;
1705 } else
acbb0225 1706 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1707
9e2f7c11
LP		 1708 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1709 r = -ENOMEM;
1710 goto fail;
1711 }
1712
9865f3b4 1713 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1714 r = -ENOMEM;
1715 goto fail;
1716 }
c952c6ec 1717
2105e76a 1718 if (set_notify_socket)
91b22f21 1719 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1720 r = -ENOMEM;
1721 goto fail;
1722 }
1723
2105e76a
LP		 1724 if (s->main_pid > 0)
1725 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1726 r = -ENOMEM;
1727 goto fail;
1728 }
2105e76a
LP		 1729
1730 if (!(final_env = strv_env_merge(2,
1731 s->meta.manager->environment,
1732 our_env,
1733 NULL))) {
1734 r = -ENOMEM;
1735 goto fail;
1736 }
c952c6ec 1737
9e2f7c11
LP		 1738 r = exec_spawn(c,
1739 argv,
1740 &s->exec_context,
1741 fds, n_fds,
2105e76a 1742 final_env,
9e2f7c11
LP		 1743 apply_permissions,
1744 apply_chroot,
1e3ad081 1745 apply_tty_stdin,
4cd1fbcc
LP		 1746 s->meta.manager->confirm_spawn,
1747 s->meta.cgroup_bondings,
ab1f0633 1748 s->meta.cgroup_attributes,
9e2f7c11
LP		 1749 &pid);
1750
9e2f7c11 1751 if (r < 0)
034c6ed7
LP		 1752 goto fail;
1753
4f2d528d 1754
87f0e418 1755 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1756 /* FIXME: we need to do something here */
1757 goto fail;
1758
2105e76a
LP		 1759 free(fdsbuf);
1760 strv_free(argv);
1761 strv_free(our_env);
1762 strv_free(final_env);
1763
034c6ed7
LP		 1764 *_pid = pid;
1765
5cb5a6ff 1766 return 0;
034c6ed7
LP		 1767
1768fail:
2105e76a 1769 free(fdsbuf);
c952c6ec 1770 strv_free(argv);
2105e76a
LP		 1771 strv_free(our_env);
1772 strv_free(final_env);
c952c6ec 1773
034c6ed7 1774 if (timeout)
acbb0225 1775 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1776
1777 return r;
1778}
1779
80876c20
LP		 1780static int main_pid_good(Service *s) {
1781 assert(s);
1782
1783 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1784 * don't know */
1785
1786 /* If we know the pid file, then lets just check if it is
1787 * still valid */
6dfa5494
LP		 1788 if (s->main_pid_known) {
1789
1790 /* If it's an alien child let's check if it is still
1791 * alive ... */
1792 if (s->main_pid_alien)
1793 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1794
1795 /* .. otherwise assume we'll get a SIGCHLD for it,
1796 * which we really should wait for to collect exit
1797 * status and code */
80876c20 1798 return s->main_pid > 0;
6dfa5494 1799 }
80876c20
LP		 1800
1801 /* We don't know the pid */
1802 return -EAGAIN;
1803}
1804
1805static int control_pid_good(Service *s) {
1806 assert(s);
1807
1808 return s->control_pid > 0;
1809}
1810
1811static int cgroup_good(Service *s) {
1812 int r;
1813
1814 assert(s);
1815
4cd1fbcc 1816 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1817 return r;
1818
1819 return !r;
1820}
1821
034c6ed7
LP		 1822static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1823 int r;
1824 assert(s);
1825
1826 if (!success)
1827 s->failure = true;
1828
1829 if (allow_restart &&
47342320 1830 !s->forbid_restart &&
034c6ed7 1831 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1832 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1833 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1834 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1835 (s->main_exec_status.code == CLD_KILLED ||
1836 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1837
acbb0225 1838 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1839 goto fail;
1840
1841 service_set_state(s, SERVICE_AUTO_RESTART);
1842 } else
fdf20a31 1843 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1844
47342320
LP		 1845 s->forbid_restart = false;
1846
034c6ed7
LP		 1847 return;
1848
1849fail:
4cd1fbcc 1850 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1851 service_enter_dead(s, false, false);
1852}
1853
1854static void service_enter_signal(Service *s, ServiceState state, bool success);
1855
1856static void service_enter_stop_post(Service *s, bool success) {
1857 int r;
1858 assert(s);
1859
1860 if (!success)
1861 s->failure = true;
1862
5e94833f
LP		 1863 service_unwatch_control_pid(s);
1864
80876c20 1865 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1866 s->control_command_id = SERVICE_EXEC_STOP_POST;
1867
81a2b7ce
LP		 1868 if ((r = service_spawn(s,
1869 s->control_command,
1870 true,
1871 false,
1872 !s->permissions_start_only,
1873 !s->root_directory_start_only,
1e3ad081 1874 true,
c952c6ec 1875 false,
81a2b7ce 1876 &s->control_pid)) < 0)
034c6ed7
LP		 1877 goto fail;
1878
d6ea93e3 1879
80876c20
LP		 1880 service_set_state(s, SERVICE_STOP_POST);
1881 } else
1882 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1883
1884 return;
1885
1886fail:
4cd1fbcc 1887 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1888 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1889}
1890
1891static void service_enter_signal(Service *s, ServiceState state, bool success) {
1892 int r;
ca949c9d
LP		 1893 Set *pid_set = NULL;
1894 bool wait_for_exit = false;
034c6ed7
LP		 1895
1896 assert(s);
1897
1898 if (!success)
1899 s->failure = true;
1900
2e22afe9
LP		 1901 if (s->exec_context.kill_mode != KILL_NONE) {
1902 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1903
ca949c9d 1904 if (s->main_pid > 0) {
cd25cce9 1905 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1906 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1907 else
6dfa5494 1908 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1909 }
1910
ca949c9d 1911 if (s->control_pid > 0) {
cd25cce9 1912 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1913 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1914 else
1915 wait_for_exit = true;
1916 }
50159e6a 1917
ca949c9d 1918 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1919
ca949c9d
LP		 1920 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1921 r = -ENOMEM;
50159e6a 1922 goto fail;
ca949c9d
LP		 1923 }
1924
1925 /* Exclude the main/control pids from being killed via the cgroup */
1926 if (s->main_pid > 0)
1927 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1928 goto fail;
1929
1930 if (s->control_pid > 0)
1931 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1932 goto fail;
1933
430c18ed 1934 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1935 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1936 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1937 } else if (r > 0)
ca949c9d
LP		 1938 wait_for_exit = true;
1939
1940 set_free(pid_set);
da19d5c1 1941 pid_set = NULL;
50159e6a 1942 }
d6ea93e3 1943 }
034c6ed7 1944
ca949c9d 1945 if (wait_for_exit) {
e558336f
LP		 1946 if (s->timeout_usec > 0)
1947 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1948 goto fail;
d6ea93e3 1949
80876c20
LP		 1950 service_set_state(s, state);
1951 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1952 service_enter_stop_post(s, true);
1953 else
034c6ed7
LP		 1954 service_enter_dead(s, true, true);
1955
1956 return;
1957
1958fail:
4cd1fbcc 1959 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1960
80876c20 1961 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1962 service_enter_stop_post(s, false);
1963 else
1964 service_enter_dead(s, false, true);
ca949c9d
LP		 1965
1966 if (pid_set)
1967 set_free(pid_set);
034c6ed7
LP		 1968}
1969
1970static void service_enter_stop(Service *s, bool success) {
1971 int r;
5925dd3c 1972
034c6ed7
LP		 1973 assert(s);
1974
1975 if (!success)
1976 s->failure = true;
1977
5e94833f
LP		 1978 service_unwatch_control_pid(s);
1979
80876c20 1980 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1981 s->control_command_id = SERVICE_EXEC_STOP;
1982
81a2b7ce
LP		 1983 if ((r = service_spawn(s,
1984 s->control_command,
1985 true,
1986 false,
1987 !s->permissions_start_only,
1988 !s->root_directory_start_only,
c952c6ec 1989 false,
1e3ad081 1990 false,
e55224ca 1991 &s->control_pid)) < 0)
034c6ed7
LP		 1992 goto fail;
1993
80876c20
LP		 1994 service_set_state(s, SERVICE_STOP);
1995 } else
034c6ed7
LP		 1996 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1997
1998 return;
1999
2000fail:
4cd1fbcc 2001 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2002 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2003}
2004
80876c20 2005static void service_enter_running(Service *s, bool success) {
4eab639f 2006 int main_pid_ok, cgroup_ok;
80876c20
LP		 2007 assert(s);
2008
2009 if (!success)
2010 s->failure = true;
2011
4eab639f
LP		 2012 main_pid_ok = main_pid_good(s);
2013 cgroup_ok = cgroup_good(s);
2014
2015 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 2016 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 2017 service_set_state(s, SERVICE_RUNNING);
02ee865a 2018 else if (s->remain_after_exit)
80876c20
LP		 2019 service_set_state(s, SERVICE_EXITED);
2020 else
2021 service_enter_stop(s, true);
2022}
2023
034c6ed7
LP		 2024static void service_enter_start_post(Service *s) {
2025 int r;
2026 assert(s);
2027
5e94833f
LP		 2028 service_unwatch_control_pid(s);
2029
80876c20 2030 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2031 s->control_command_id = SERVICE_EXEC_START_POST;
2032
81a2b7ce
LP		 2033 if ((r = service_spawn(s,
2034 s->control_command,
2035 true,
2036 false,
2037 !s->permissions_start_only,
2038 !s->root_directory_start_only,
c952c6ec 2039 false,
1e3ad081 2040 false,
e55224ca 2041 &s->control_pid)) < 0)
034c6ed7
LP		 2042 goto fail;
2043
80876c20
LP		 2044 service_set_state(s, SERVICE_START_POST);
2045 } else
2046 service_enter_running(s, true);
034c6ed7
LP		 2047
2048 return;
2049
2050fail:
4cd1fbcc 2051 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2052 service_enter_stop(s, false);
2053}
2054
2055static void service_enter_start(Service *s) {
2056 pid_t pid;
2057 int r;
867b3b7d 2058 ExecCommand *c;
034c6ed7
LP		 2059
2060 assert(s);
2061
2062 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2063 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2064
80876c20
LP		 2065 if (s->type == SERVICE_FORKING)
2066 service_unwatch_control_pid(s);
2067 else
2068 service_unwatch_main_pid(s);
2069
867b3b7d
LP		 2070 if (s->type == SERVICE_FORKING) {
2071 s->control_command_id = SERVICE_EXEC_START;
2072 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2073
2074 s->main_command = NULL;
2075 } else {
2076 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2077 s->control_command = NULL;
2078
2079 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2080 }
34e9ba66 2081
81a2b7ce 2082 if ((r = service_spawn(s,
867b3b7d 2083 c,
8c47c732 2084 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2085 true,
2086 true,
2087 true,
1e3ad081 2088 true,
c952c6ec 2089 s->notify_access != NOTIFY_NONE,
81a2b7ce 2090 &pid)) < 0)
034c6ed7
LP		 2091 goto fail;
2092
2093 if (s->type == SERVICE_SIMPLE) {
2094 /* For simple services we immediately start
2095 * the START_POST binaries. */
2096
5925dd3c 2097 service_set_main_pid(s, pid);
034c6ed7
LP		 2098 service_enter_start_post(s);
2099
2100 } else if (s->type == SERVICE_FORKING) {
2101
2102 /* For forking services we wait until the start
2103 * process exited. */
2104
e55224ca 2105 s->control_pid = pid;
80876c20
LP		 2106 service_set_state(s, SERVICE_START);
2107
34e9ba66 2108 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2109 s->type == SERVICE_DBUS ||
2110 s->type == SERVICE_NOTIFY) {
7d55e835 2111
34e9ba66 2112 /* For oneshot services we wait until the start
7d55e835
LP		 2113 * process exited, too, but it is our main process. */
2114
05e343b7 2115 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2116 * but wait for the bus name to appear on the
2117 * bus. Notify services are similar. */
05e343b7 2118
5925dd3c 2119 service_set_main_pid(s, pid);
80876c20 2120 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2121 } else
2122 assert_not_reached("Unknown service type");
2123
2124 return;
2125
2126fail:
4cd1fbcc 2127 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2128 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2129}
2130
2131static void service_enter_start_pre(Service *s) {
2132 int r;
2133
2134 assert(s);
2135
5e94833f
LP		 2136 service_unwatch_control_pid(s);
2137
80876c20 2138 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2139 s->control_command_id = SERVICE_EXEC_START_PRE;
2140
81a2b7ce
LP		 2141 if ((r = service_spawn(s,
2142 s->control_command,
2143 true,
2144 false,
2145 !s->permissions_start_only,
2146 !s->root_directory_start_only,
1e3ad081 2147 true,
c952c6ec 2148 false,
e55224ca 2149 &s->control_pid)) < 0)
034c6ed7
LP		 2150 goto fail;
2151
80876c20
LP		 2152 service_set_state(s, SERVICE_START_PRE);
2153 } else
034c6ed7
LP		 2154 service_enter_start(s);
2155
2156 return;
2157
2158fail:
4cd1fbcc 2159 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2160 service_enter_dead(s, false, true);
2161}
2162
2163static void service_enter_restart(Service *s) {
2164 int r;
398ef8ba
LP		 2165 DBusError error;
2166
034c6ed7 2167 assert(s);
398ef8ba 2168 dbus_error_init(&error);
034c6ed7 2169
2edfa366
LP		 2170 if (s->meta.job) {
2171 log_info("Job pending for unit, delaying automatic restart.");
2172
2173 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2174 goto fail;
2175 }
2176
9ea9a0c8
LP		 2177 service_enter_dead(s, true, false);
2178
7b2603e6 2179 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2180 goto fail;
2181
4cd1fbcc 2182 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2183 return;
2184
2185fail:
398ef8ba 2186 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2187 service_enter_dead(s, false, false);
398ef8ba
LP		 2188
2189 dbus_error_free(&error);
034c6ed7
LP		 2190}
2191
2192static void service_enter_reload(Service *s) {
2193 int r;
2194
2195 assert(s);
2196
5e94833f
LP		 2197 service_unwatch_control_pid(s);
2198
80876c20 2199 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2200 s->control_command_id = SERVICE_EXEC_RELOAD;
2201
81a2b7ce
LP		 2202 if ((r = service_spawn(s,
2203 s->control_command,
2204 true,
2205 false,
2206 !s->permissions_start_only,
2207 !s->root_directory_start_only,
c952c6ec 2208 false,
1e3ad081 2209 false,
e55224ca 2210 &s->control_pid)) < 0)
034c6ed7
LP		 2211 goto fail;
2212
80876c20
LP		 2213 service_set_state(s, SERVICE_RELOAD);
2214 } else
2215 service_enter_running(s, true);
034c6ed7
LP		 2216
2217 return;
2218
2219fail:
4cd1fbcc 2220 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2221 s->reload_failure = true;
2222 service_enter_running(s, true);
034c6ed7
LP		 2223}
2224
34e9ba66 2225static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2226 int r;
2227
2228 assert(s);
2229 assert(s->control_command);
2230 assert(s->control_command->command_next);
2231
2232 if (!success)
2233 s->failure = true;
2234
34e9ba66 2235 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2236
34e9ba66 2237 s->control_command = s->control_command->command_next;
5e94833f
LP		 2238 service_unwatch_control_pid(s);
2239
81a2b7ce
LP		 2240 if ((r = service_spawn(s,
2241 s->control_command,
2242 true,
2243 false,
2244 !s->permissions_start_only,
2245 !s->root_directory_start_only,
5830833f
LP		 2246 s->control_command_id == SERVICE_EXEC_START_PRE ||
2247 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2248 false,
e55224ca 2249 &s->control_pid)) < 0)
034c6ed7
LP		 2250 goto fail;
2251
2252 return;
2253
2254fail:
34e9ba66 2255 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2256
80876c20
LP		 2257 if (s->state == SERVICE_START_PRE)
2258 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2259 else if (s->state == SERVICE_STOP)
2260 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2261 else if (s->state == SERVICE_STOP_POST)
2262 service_enter_dead(s, false, true);
e2f3b44c
LP		 2263 else if (s->state == SERVICE_RELOAD) {
2264 s->reload_failure = true;
2265 service_enter_running(s, true);
2266 } else
034c6ed7 2267 service_enter_stop(s, false);
5cb5a6ff
LP		 2268}
2269
34e9ba66
LP		 2270static void service_run_next_main(Service *s, bool success) {
2271 pid_t pid;
2272 int r;
2273
2274 assert(s);
867b3b7d
LP		 2275 assert(s->main_command);
2276 assert(s->main_command->command_next);
2277 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2278
2279 if (!success)
2280 s->failure = true;
2281
867b3b7d 2282 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2283 service_unwatch_main_pid(s);
2284
2285 if ((r = service_spawn(s,
867b3b7d 2286 s->main_command,
34e9ba66
LP		 2287 false,
2288 true,
2289 true,
2290 true,
2291 true,
2292 s->notify_access != NOTIFY_NONE,
2293 &pid)) < 0)
2294 goto fail;
2295
2296 service_set_main_pid(s, pid);
2297
2298 return;
2299
2300fail:
2301 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2302 service_enter_stop(s, false);
2303}
2304
87f0e418
LP		 2305static int service_start(Unit *u) {
2306 Service *s = SERVICE(u);
5cb5a6ff
LP		 2307
2308 assert(s);
2309
034c6ed7
LP		 2310 /* We cannot fulfill this request right now, try again later
2311 * please! */
2312 if (s->state == SERVICE_STOP ||
2313 s->state == SERVICE_STOP_SIGTERM ||
2314 s->state == SERVICE_STOP_SIGKILL ||
2315 s->state == SERVICE_STOP_POST ||
2316 s->state == SERVICE_FINAL_SIGTERM ||
2317 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2318 return -EAGAIN;
2319
034c6ed7
LP		 2320 /* Already on it! */
2321 if (s->state == SERVICE_START_PRE ||
2322 s->state == SERVICE_START ||
2323 s->state == SERVICE_START_POST)
2324 return 0;
2325
fdf20a31 2326 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2327
1e2e8133
LP		 2328 /* Make sure we don't enter a busy loop of some kind. */
2329 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2330 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2331 return -ECANCELED;
1e2e8133
LP		 2332 }
2333
034c6ed7
LP		 2334 s->failure = false;
2335 s->main_pid_known = false;
6dfa5494 2336 s->main_pid_alien = false;
47342320 2337 s->forbid_restart = false;
034c6ed7
LP		 2338
2339 service_enter_start_pre(s);
2340 return 0;
5cb5a6ff
LP		 2341}
2342
87f0e418
LP		 2343static int service_stop(Unit *u) {
2344 Service *s = SERVICE(u);
5cb5a6ff
LP		 2345
2346 assert(s);
2347
3f6c78dc
LP		 2348 /* This is a user request, so don't do restarts on this
2349 * shutdown. */
47342320 2350 s->forbid_restart = true;
034c6ed7 2351
e537352b
LP		 2352 /* Already on it */
2353 if (s->state == SERVICE_STOP ||
2354 s->state == SERVICE_STOP_SIGTERM ||
2355 s->state == SERVICE_STOP_SIGKILL ||
2356 s->state == SERVICE_STOP_POST ||
2357 s->state == SERVICE_FINAL_SIGTERM ||
2358 s->state == SERVICE_FINAL_SIGKILL)
2359 return 0;
2360
3f6c78dc 2361 /* Don't allow a restart */
034c6ed7
LP		 2362 if (s->state == SERVICE_AUTO_RESTART) {
2363 service_set_state(s, SERVICE_DEAD);
2364 return 0;
2365 }
2366
3f6c78dc
LP		 2367 /* If there's already something running we go directly into
2368 * kill mode. */
2369 if (s->state == SERVICE_START_PRE ||
2370 s->state == SERVICE_START ||
2371 s->state == SERVICE_START_POST ||
2372 s->state == SERVICE_RELOAD) {
2373 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2374 return 0;
2375 }
5cb5a6ff 2376
3f6c78dc
LP		 2377 assert(s->state == SERVICE_RUNNING ||
2378 s->state == SERVICE_EXITED);
3a762661 2379
034c6ed7 2380 service_enter_stop(s, true);
5cb5a6ff
LP		 2381 return 0;
2382}
2383
87f0e418
LP		 2384static int service_reload(Unit *u) {
2385 Service *s = SERVICE(u);
034c6ed7
LP		 2386
2387 assert(s);
2388
80876c20 2389 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2390
2391 service_enter_reload(s);
5cb5a6ff
LP		 2392 return 0;
2393}
2394
87f0e418
LP		 2395static bool service_can_reload(Unit *u) {
2396 Service *s = SERVICE(u);
034c6ed7
LP		 2397
2398 assert(s);
2399
2400 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2401}
2402
a16e1123
LP		 2403static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2404 Service *s = SERVICE(u);
2405
2406 assert(u);
2407 assert(f);
2408 assert(fds);
2409
2410 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2411 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2412
2413 if (s->control_pid > 0)
5925dd3c 2414 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2415
5925dd3c
LP		 2416 if (s->main_pid_known && s->main_pid > 0)
2417 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2418
2419 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2420
3a2776bc
LP		 2421 if (s->status_text)
2422 unit_serialize_item(u, f, "status-text", s->status_text);
2423
a16e1123
LP		 2424 /* There's a minor uncleanliness here: if there are multiple
2425 * commands attached here, we will start from the first one
2426 * again */
2427 if (s->control_command_id >= 0)
825636e5 2428 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2429
2430 if (s->socket_fd >= 0) {
2431 int copy;
2432
2433 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2434 return copy;
2435
2436 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2437 }
2438
ecdbca40
LP		 2439 if (s->main_exec_status.pid > 0) {
2440 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2441 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2442 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2443
799fd0fd 2444 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2445 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2446 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2447 }
2448 }
2449
a16e1123
LP		 2450 return 0;
2451}
2452
2453static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2454 Service *s = SERVICE(u);
a16e1123
LP		 2455
2456 assert(u);
2457 assert(key);
2458 assert(value);
2459 assert(fds);
2460
2461 if (streq(key, "state")) {
2462 ServiceState state;
2463
2464 if ((state = service_state_from_string(value)) < 0)
2465 log_debug("Failed to parse state value %s", value);
2466 else
2467 s->deserialized_state = state;
2468 } else if (streq(key, "failure")) {
2469 int b;
2470
2471 if ((b = parse_boolean(value)) < 0)
2472 log_debug("Failed to parse failure value %s", value);
2473 else
2474 s->failure = b || s->failure;
2475 } else if (streq(key, "control-pid")) {
5925dd3c 2476 pid_t pid;
a16e1123 2477
e364ad06 2478 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2479 log_debug("Failed to parse control-pid value %s", value);
2480 else
e55224ca 2481 s->control_pid = pid;
a16e1123 2482 } else if (streq(key, "main-pid")) {
5925dd3c 2483 pid_t pid;
a16e1123 2484
e364ad06 2485 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2486 log_debug("Failed to parse main-pid value %s", value);
2487 else
5925dd3c 2488 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2489 } else if (streq(key, "main-pid-known")) {
2490 int b;
2491
2492 if ((b = parse_boolean(value)) < 0)
2493 log_debug("Failed to parse main-pid-known value %s", value);
2494 else
2495 s->main_pid_known = b;
3a2776bc
LP		 2496 } else if (streq(key, "status-text")) {
2497 char *t;
2498
2499 if ((t = strdup(value))) {
2500 free(s->status_text);
2501 s->status_text = t;
2502 }
2503
a16e1123
LP		 2504 } else if (streq(key, "control-command")) {
2505 ServiceExecCommand id;
2506
2507 if ((id = service_exec_command_from_string(value)) < 0)
2508 log_debug("Failed to parse exec-command value %s", value);
2509 else {
2510 s->control_command_id = id;
2511 s->control_command = s->exec_command[id];
2512 }
2513 } else if (streq(key, "socket-fd")) {
2514 int fd;
2515
2516 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2517 log_debug("Failed to parse socket-fd value %s", value);
2518 else {
2519
2520 if (s->socket_fd >= 0)
2521 close_nointr_nofail(s->socket_fd);
2522 s->socket_fd = fdset_remove(fds, fd);
2523 }
ecdbca40
LP		 2524 } else if (streq(key, "main-exec-status-pid")) {
2525 pid_t pid;
2526
e364ad06 2527 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2528 log_debug("Failed to parse main-exec-status-pid value %s", value);
2529 else
2530 s->main_exec_status.pid = pid;
2531 } else if (streq(key, "main-exec-status-code")) {
2532 int i;
2533
e364ad06 2534 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2535 log_debug("Failed to parse main-exec-status-code value %s", value);
2536 else
2537 s->main_exec_status.code = i;
2538 } else if (streq(key, "main-exec-status-status")) {
2539 int i;
2540
e364ad06 2541 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2542 log_debug("Failed to parse main-exec-status-status value %s", value);
2543 else
2544 s->main_exec_status.status = i;
799fd0fd
LP		 2545 } else if (streq(key, "main-exec-status-start"))
2546 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2547 else if (streq(key, "main-exec-status-exit"))
2548 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2549 else
a16e1123
LP		 2550 log_debug("Unknown serialization key '%s'", key);
2551
2552 return 0;
2553}
2554
87f0e418
LP		 2555static UnitActiveState service_active_state(Unit *u) {
2556 assert(u);
5cb5a6ff 2557
acbb0225 2558 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2559}
2560
10a94420
LP		 2561static const char *service_sub_state_to_string(Unit *u) {
2562 assert(u);
2563
2564 return service_state_to_string(SERVICE(u)->state);
2565}
2566
701cc384
LP		 2567static bool service_check_gc(Unit *u) {
2568 Service *s = SERVICE(u);
2569
2570 assert(s);
2571
6d55002a
LP		 2572 /* Never clean up services that still have a process around,
2573 * even if the service is formally dead. */
2574 if (cgroup_good(s) > 0 ||
2575 main_pid_good(s) > 0 ||
2576 control_pid_good(s) > 0)
2577 return true;
2578
2579#ifdef HAVE_SYSV_COMPAT
2580 if (s->sysv_path)
2581 return true;
07459bb6 2582#endif
701cc384 2583
6d55002a
LP		 2584 return false;
2585}
2586
701cc384
LP		 2587static bool service_check_snapshot(Unit *u) {
2588 Service *s = SERVICE(u);
2589
2590 assert(s);
2591
2592 return !s->got_socket_fd;
2593}
2594
87f0e418
LP		 2595static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2596 Service *s = SERVICE(u);
034c6ed7 2597 bool success;
5cb5a6ff
LP		 2598
2599 assert(s);
034c6ed7
LP		 2600 assert(pid >= 0);
2601
f21781d5 2602 if (!s->meta.fragment_path)
d06dacd0
LP		 2603 success = is_clean_exit_lsb(code, status);
2604 else
2605 success = is_clean_exit(code, status);
034c6ed7
LP		 2606
2607 if (s->main_pid == pid) {
db01f8b3
MS		 2608 /* Forking services may occasionally move to a new PID.
2609 * As long as they update the PID file before exiting the old
2610 * PID, they're fine. */
5375410b 2611 if (service_load_pid_file(s, false) == 0)
db01f8b3 2612 return;
034c6ed7 2613
034c6ed7 2614 s->main_pid = 0;
6ea832a2 2615 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2616
867b3b7d
LP		 2617 /* If this is not a forking service than the main
2618 * process got started and hence we copy the exit
2619 * status so that it is recorded both as main and as
2620 * control process exit status */
2621 if (s->main_command) {
2622 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2623
867b3b7d 2624 if (s->main_command->ignore)
b708e7ce 2625 success = true;
034c6ed7
LP		 2626 }
2627
92abbefb
LP		 2628 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2629 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2630 s->failure = s->failure || !success;
034c6ed7 2631
867b3b7d
LP		 2632 if (s->main_command &&
2633 s->main_command->command_next &&
34e9ba66 2634 success) {
034c6ed7 2635
34e9ba66
LP		 2636 /* There is another command to *
2637 * execute, so let's do that. */
034c6ed7 2638
34e9ba66
LP		 2639 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2640 service_run_next_main(s, success);
034c6ed7 2641
34e9ba66
LP		 2642 } else {
2643
2644 /* The service exited, so the service is officially
2645 * gone. */
867b3b7d 2646 s->main_command = NULL;
34e9ba66
LP		 2647
2648 switch (s->state) {
2649
2650 case SERVICE_START_POST:
2651 case SERVICE_RELOAD:
2652 case SERVICE_STOP:
2653 /* Need to wait until the operation is
2654 * done */
c4653a4d 2655 break;
7d55e835 2656
34e9ba66
LP		 2657 case SERVICE_START:
2658 if (s->type == SERVICE_ONESHOT) {
2659 /* This was our main goal, so let's go on */
2660 if (success)
2661 service_enter_start_post(s);
2662 else
2663 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2664 break;
2665 } else {
2666 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2667
34e9ba66
LP		 2668 /* Fall through */
2669 }
034c6ed7 2670
34e9ba66
LP		 2671 case SERVICE_RUNNING:
2672 service_enter_running(s, success);
2673 break;
034c6ed7 2674
34e9ba66
LP		 2675 case SERVICE_STOP_SIGTERM:
2676 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2677
34e9ba66
LP		 2678 if (!control_pid_good(s))
2679 service_enter_stop_post(s, success);
5cb5a6ff 2680
34e9ba66
LP		 2681 /* If there is still a control process, wait for that first */
2682 break;
2683
2684 default:
2685 assert_not_reached("Uh, main process died at wrong time.");
2686 }
034c6ed7 2687 }
5cb5a6ff 2688
034c6ed7 2689 } else if (s->control_pid == pid) {
034c6ed7 2690
34e9ba66
LP		 2691 s->control_pid = 0;
2692
b708e7ce 2693 if (s->control_command) {
6ea832a2 2694 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2695
b708e7ce
LP		 2696 if (s->control_command->ignore)
2697 success = true;
2698 }
2699
34e9ba66 2700 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2701 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2702 s->failure = s->failure || !success;
034c6ed7 2703
34e9ba66
LP		 2704 if (s->control_command &&
2705 s->control_command->command_next &&
2706 success) {
034c6ed7
LP		 2707
2708 /* There is another command to *
2709 * execute, so let's do that. */
2710
34e9ba66
LP		 2711 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2712 service_run_next_control(s, success);
034c6ed7 2713
80876c20 2714 } else {
034c6ed7
LP		 2715 /* No further commands for this step, so let's
2716 * figure out what to do next */
2717
a16e1123
LP		 2718 s->control_command = NULL;
2719 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2720
9e2f7c11 2721 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2722
034c6ed7
LP		 2723 switch (s->state) {
2724
2725 case SERVICE_START_PRE:
2726 if (success)
2727 service_enter_start(s);
2728 else
80876c20 2729 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2730 break;
2731
2732 case SERVICE_START:
2733 assert(s->type == SERVICE_FORKING);
2734
2735 /* Let's try to load the pid
2736 * file here if we can. We
2737 * ignore the return value,
2738 * since the PID file might
2739 * actually be created by a
2740 * START_POST script */
2741
2742 if (success) {
5375410b 2743 service_load_pid_file(s, !s->exec_command[SERVICE_EXEC_START_POST]);
4fbf50b3 2744 service_search_main_pid(s);
034c6ed7
LP		 2745
2746 service_enter_start_post(s);
2747 } else
80876c20 2748 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2749
2750 break;
2751
2752 case SERVICE_START_POST:
6dfa5494 2753 if (success) {
5375410b 2754 service_load_pid_file(s, true);
6dfa5494 2755 service_search_main_pid(s);
034c6ed7
LP		 2756 }
2757
3185a36b
LP		 2758 s->reload_failure = !success;
2759 service_enter_running(s, true);
2760 break;
034c6ed7
LP		 2761
2762 case SERVICE_RELOAD:
3185a36b 2763 if (success) {
5375410b 2764 service_load_pid_file(s, true);
3185a36b
LP		 2765 service_search_main_pid(s);
2766 }
2767
e2f3b44c
LP		 2768 s->reload_failure = !success;
2769 service_enter_running(s, true);
034c6ed7
LP		 2770 break;
2771
2772 case SERVICE_STOP:
80876c20 2773 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2774 break;
2775
2776 case SERVICE_STOP_SIGTERM:
2777 case SERVICE_STOP_SIGKILL:
2778 if (main_pid_good(s) <= 0)
2779 service_enter_stop_post(s, success);
2780
2781 /* If there is still a service
2782 * process around, wait until
2783 * that one quit, too */
2784 break;
2785
2786 case SERVICE_STOP_POST:
2787 case SERVICE_FINAL_SIGTERM:
2788 case SERVICE_FINAL_SIGKILL:
2789 service_enter_dead(s, success, true);
2790 break;
2791
2792 default:
2793 assert_not_reached("Uh, control process died at wrong time.");
2794 }
2795 }
8c47c732 2796 }
c4e2ceae
LP		 2797
2798 /* Notify clients about changed exit status */
2799 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2800}
2801
acbb0225 2802static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2803 Service *s = SERVICE(u);
034c6ed7
LP		 2804
2805 assert(s);
2806 assert(elapsed == 1);
2807
acbb0225 2808 assert(w == &s->timer_watch);
034c6ed7
LP		 2809
2810 switch (s->state) {
2811
2812 case SERVICE_START_PRE:
2813 case SERVICE_START:
9e2f7c11 2814 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2815 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2816 break;
2817
034c6ed7 2818 case SERVICE_START_POST:
9e2f7c11 2819 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2820 service_enter_stop(s, false);
2821 break;
2822
e2f3b44c
LP		 2823 case SERVICE_RELOAD:
2824 log_warning("%s operation timed out. Stopping.", u->meta.id);
2825 s->reload_failure = true;
2826 service_enter_running(s, true);
2827 break;
2828
034c6ed7 2829 case SERVICE_STOP:
9e2f7c11 2830 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2831 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2832 break;
2833
2834 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2835 if (s->exec_context.send_sigkill) {
2836 log_warning("%s stopping timed out. Killing.", u->meta.id);
2837 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2838 } else {
2839 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2840 service_enter_stop_post(s, false);
2841 }
2842
034c6ed7
LP		 2843 break;
2844
2845 case SERVICE_STOP_SIGKILL:
35b8ca3a 2846 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 2847 * Must be something we cannot kill, so let's just be
2848 * weirded out and continue */
2849
9e2f7c11 2850 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2851 service_enter_stop_post(s, false);
2852 break;
2853
2854 case SERVICE_STOP_POST:
9e2f7c11 2855 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2856 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2857 break;
2858
2859 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2860 if (s->exec_context.send_sigkill) {
2861 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2862 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2863 } else {
2864 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2865 service_enter_dead(s, false, true);
2866 }
2867
034c6ed7
LP		 2868 break;
2869
2870 case SERVICE_FINAL_SIGKILL:
fdf20a31 2871 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2872 service_enter_dead(s, false, true);
2873 break;
2874
2875 case SERVICE_AUTO_RESTART:
54165a39 2876 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2877 service_enter_restart(s);
2878 break;
2879
2880 default:
2881 assert_not_reached("Timeout at wrong time.");
2882 }
5cb5a6ff
LP		 2883}
2884
8e274523
LP		 2885static void service_cgroup_notify_event(Unit *u) {
2886 Service *s = SERVICE(u);
2887
2888 assert(u);
2889
9e2f7c11 2890 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2891
2892 switch (s->state) {
2893
2894 /* Waiting for SIGCHLD is usually more interesting,
2895 * because it includes return codes/signals. Which is
2896 * why we ignore the cgroup events for most cases,
2897 * except when we don't know pid which to expect the
2898 * SIGCHLD for. */
2899
2900 case SERVICE_RUNNING:
80876c20 2901 service_enter_running(s, true);
8e274523
LP		 2902 break;
2903
28708d8a
LP		 2904 case SERVICE_STOP_SIGTERM:
2905 case SERVICE_STOP_SIGKILL:
6dfa5494 2906
28708d8a
LP		 2907 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2908 service_enter_stop_post(s, true);
2909
2910 break;
2911
7f97f0fe
LP		 2912 case SERVICE_FINAL_SIGTERM:
2913 case SERVICE_FINAL_SIGKILL:
2914 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2915 service_enter_dead(s, true, true);
2916
2917 break;
2918
8e274523
LP		 2919 default:
2920 ;
2921 }
2922}
2923
c952c6ec 2924static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2925 Service *s = SERVICE(u);
2926 const char *e;
2927
2928 assert(u);
2929
c952c6ec
LP		 2930 if (s->notify_access == NOTIFY_NONE) {
2931 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2932 u->meta.id, (unsigned long) pid);
2933 return;
2934 }
2935
2936 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2937 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2938 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2939 return;
2940 }
2941
8c47c732
LP		 2942 log_debug("%s: Got message", u->meta.id);
2943
2944 /* Interpret MAINPID= */
2945 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2946 (s->state == SERVICE_START ||
2947 s->state == SERVICE_START_POST ||
2948 s->state == SERVICE_RUNNING ||
2949 s->state == SERVICE_RELOAD)) {
8c47c732 2950
5925dd3c 2951 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2952 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2953 else {
2954 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2955 service_set_main_pid(s, pid);
8c47c732
LP		 2956 }
2957 }
2958
2959 /* Interpret READY= */
2960 if (s->type == SERVICE_NOTIFY &&
2961 s->state == SERVICE_START &&
2962 strv_find(tags, "READY=1")) {
2963 log_debug("%s: got READY=1", u->meta.id);
2964
2965 service_enter_start_post(s);
2966 }
2967
2968 /* Interpret STATUS= */
2969 if ((e = strv_find_prefix(tags, "STATUS="))) {
2970 char *t;
2971
3a2776bc
LP		 2972 if (e[7]) {
2973 if (!(t = strdup(e+7))) {
2974 log_error("Failed to allocate string.");
2975 return;
2976 }
2977
2978 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2979
3a2776bc
LP		 2980 free(s->status_text);
2981 s->status_text = t;
2982 } else {
2983 free(s->status_text);
2984 s->status_text = NULL;
2985 }
8c47c732 2986
8c47c732 2987 }
c4e2ceae
LP		 2988
2989 /* Notify clients about changed status or main pid */
2990 unit_add_to_dbus_queue(u);
8c47c732
LP		 2991}
2992
07459bb6 2993#ifdef HAVE_SYSV_COMPAT
de3910a3
FC		 2994
2995#ifdef TARGET_SUSE
2996static void sysv_facility_in_insserv_conf(Manager *mgr) {
2997 FILE *f=NULL;
2998 int r;
2999
3000 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3001 r = errno == ENOENT ? 0 : -errno;
3002 goto finish;
3003 }
3004
3005 while (!feof(f)) {
3006 char l[LINE_MAX], *t;
3007 char **parsed = NULL;
3008
3009 if (!fgets(l, sizeof(l), f)) {
3010 if (feof(f))
3011 break;
3012
3013 r = -errno;
3014 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3015 goto finish;
3016 }
3017
3018 t = strstrip(l);
3019 if (*t != '$' && *t != '<')
3020 continue;
3021
3022 parsed = strv_split(t,WHITESPACE);
3023 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3024 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3025 char *facility;
3026 Unit *u;
3027 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3028 continue;
3029 if ((u = manager_get_unit(mgr, facility)) && (u->meta.type == UNIT_TARGET)) {
3030 UnitDependency e;
3031 char *dep = NULL, *name, **j;
3032
3033 STRV_FOREACH (j, parsed+1) {
3034 if (*j[0]=='+') {
3035 e = UNIT_WANTS;
3036 name = *j+1;
3037 }
3038 else {
3039 e = UNIT_REQUIRES;
3040 name = *j;
3041 }
3042 if (sysv_translate_facility(name, NULL, &dep) < 0)
3043 continue;
3044
3045 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3046 free(dep);
3047 }
3048 }
3049 free(facility);
3050 }
3051 strv_free(parsed);
3052 }
3053finish:
3054 if (f)
3055 fclose(f);
3056
3057}
3058#endif
3059
2c4104f0 3060static int service_enumerate(Manager *m) {
2c4104f0
LP		 3061 char **p;
3062 unsigned i;
3063 DIR *d = NULL;
3064 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 3065 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3066 Unit *service;
3067 Iterator j;
2c4104f0
LP		 3068 int r;
3069
3070 assert(m);
3071
b1bc08e5
LP		 3072 if (m->running_as != MANAGER_SYSTEM)
3073 return 0;
3074
c68364b7
LP		 3075 zero(runlevel_services);
3076
84e3543e 3077 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 3078 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 3079 struct dirent *de;
3080
3081 free(path);
70132bd0
LP		 3082 path = join(*p, "/", rcnd_table[i].path, NULL);
3083 if (!path) {
2c4104f0
LP		 3084 r = -ENOMEM;
3085 goto finish;
3086 }
3087
3088 if (d)
3089 closedir(d);
3090
3091 if (!(d = opendir(path))) {
3092 if (errno != ENOENT)
3093 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3094
3095 continue;
3096 }
3097
3098 while ((de = readdir(d))) {
db06e3b6 3099 int a, b;
2c4104f0
LP		 3100
3101 if (ignore_file(de->d_name))
3102 continue;
3103
3104 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3105 continue;
3106
3107 if (strlen(de->d_name) < 4)
3108 continue;
3109
db06e3b6
LP		 3110 a = undecchar(de->d_name[1]);
3111 b = undecchar(de->d_name[2]);
3112
3113 if (a < 0 || b < 0)
3114 continue;
3115
2c4104f0 3116 free(fpath);
44d91056 3117 fpath = join(path, "/", de->d_name, NULL);
8ea913b2 3118 if (!fpath) {
2c4104f0
LP		 3119 r = -ENOMEM;
3120 goto finish;
3121 }
3122
3123 if (access(fpath, X_OK) < 0) {
3124
3125 if (errno != ENOENT)
3126 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3127
3128 continue;
3129 }
3130
3131 free(name);
b7ccee3c 3132 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3133 r = -ENOMEM;
3134 goto finish;
3135 }
3136
398ef8ba 3137 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3138 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3139 continue;
3140 }
2c4104f0 3141
c68364b7
LP		 3142 if (de->d_name[0] == 'S') {
3143
f73d93a4 3144 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3145 SERVICE(service)->sysv_start_priority_from_rcnd =
3146 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3147
c68364b7 3148 SERVICE(service)->sysv_enabled = true;
f73d93a4 3149 }
db06e3b6 3150
c68364b7
LP		 3151 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3152 goto finish;
2c4104f0 3153
c68364b7 3154 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3155 goto finish;
23a177ef 3156
fc5df99e
LP		 3157 } else if (de->d_name[0] == 'K' &&
3158 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3159 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3160
c68364b7
LP		 3161 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3162 goto finish;
3163
3164 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3165 goto finish;
3166 }
3167 }
3168 }
3169
c68364b7
LP		 3170 /* Now we loaded all stubs and are aware of the lowest
3171 start-up priority for all services, not let's actually load
3172 the services, this will also tell us which services are
3173 actually native now */
3174 manager_dispatch_load_queue(m);
3175
3176 /* If this is a native service, rely on native ways to pull in
3177 * a service, don't pull it in via sysv rcN.d links. */
3178 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3179 SET_FOREACH(service, runlevel_services[i], j) {
3180 service = unit_follow_merge(service);
3181
3182 if (service->meta.fragment_path)
3183 continue;
3184
3185 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3186 goto finish;
3187 }
3188
3189 /* We honour K links only for halt/reboot. For the normal
3190 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3191 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3192 * between the runlevels 0 and 6 and just add them to the
3193 * special shutdown target. On SUSE the boot.d/ runlevel is
3194 * also used for shutdown, so we add links for that too to the
3195 * shutdown target.*/
3196 SET_FOREACH(service, shutdown_services, j) {
3197 service = unit_follow_merge(service);
3198
3199 if (service->meta.fragment_path)
3200 continue;
3201
ead8e478 3202 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3203 goto finish;
3204 }
3205
2c4104f0
LP		 3206 r = 0;
3207
de3910a3
FC		 3208#ifdef TARGET_SUSE
3209 sysv_facility_in_insserv_conf (m);
3210#endif
3211
2c4104f0
LP		 3212finish:
3213 free(path);
3214 free(fpath);
3215 free(name);
fbe9f3a9 3216
c68364b7
LP		 3217 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3218 set_free(runlevel_services[i]);
3219 set_free(shutdown_services);
3220
fbe9f3a9
LP		 3221 if (d)
3222 closedir(d);
2c4104f0
LP		 3223
3224 return r;
3225}
07459bb6 3226#endif
2c4104f0 3227
05e343b7
LP		 3228static void service_bus_name_owner_change(
3229 Unit *u,
3230 const char *name,
3231 const char *old_owner,
3232 const char *new_owner) {
3233
3234 Service *s = SERVICE(u);
3235
3236 assert(s);
3237 assert(name);
3238
3239 assert(streq(s->bus_name, name));
3240 assert(old_owner || new_owner);
3241
3242 if (old_owner && new_owner)
3243 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3244 else if (old_owner)
3245 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3246 else
3247 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3248
3249 s->bus_name_good = !!new_owner;
3250
3251 if (s->type == SERVICE_DBUS) {
3252
3253 /* service_enter_running() will figure out what to
3254 * do */
3255 if (s->state == SERVICE_RUNNING)
3256 service_enter_running(s, true);
3257 else if (s->state == SERVICE_START && new_owner)
3258 service_enter_start_post(s);
3259
3260 } else if (new_owner &&
3261 s->main_pid <= 0 &&
3262 (s->state == SERVICE_START ||
3263 s->state == SERVICE_START_POST ||
3264 s->state == SERVICE_RUNNING ||
3265 s->state == SERVICE_RELOAD)) {
3266
3267 /* Try to acquire PID from bus service */
3268 log_debug("Trying to acquire PID from D-Bus name...");
3269
3270 bus_query_pid(u->meta.manager, name);
3271 }
3272}
3273
3274static void service_bus_query_pid_done(
3275 Unit *u,
3276 const char *name,
3277 pid_t pid) {
3278
3279 Service *s = SERVICE(u);
3280
3281 assert(s);
3282 assert(name);
3283
3284 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3285
3286 if (s->main_pid <= 0 &&
3287 (s->state == SERVICE_START ||
3288 s->state == SERVICE_START_POST ||
3289 s->state == SERVICE_RUNNING ||
3290 s->state == SERVICE_RELOAD))
5925dd3c 3291 service_set_main_pid(s, pid);
05e343b7
LP		 3292}
3293
6cf6bbc2 3294int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3295 assert(s);
3296 assert(fd >= 0);
3297
3298 /* This is called by the socket code when instantiating a new
3299 * service for a stream socket and the socket needs to be
3300 * configured. */
3301
4cd1fbcc 3302 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3303 return -EINVAL;
3304
3305 if (s->socket_fd >= 0)
3306 return -EBUSY;
3307
3308 if (s->state != SERVICE_DEAD)
3309 return -EAGAIN;
3310
3311 s->socket_fd = fd;
701cc384 3312 s->got_socket_fd = true;
f976f3f6 3313 s->accept_socket = sock;
6cf6bbc2 3314
4f2d528d
LP		 3315 return 0;
3316}
3317
fdf20a31 3318static void service_reset_failed(Unit *u) {
5632e374
LP		 3319 Service *s = SERVICE(u);
3320
3321 assert(s);
3322
fdf20a31 3323 if (s->state == SERVICE_FAILED)
5632e374
LP		 3324 service_set_state(s, SERVICE_DEAD);
3325
3326 s->failure = false;
3327}
3328
5f4b19f4
LP		 3329static bool service_need_daemon_reload(Unit *u) {
3330 Service *s = SERVICE(u);
3331
3332 assert(s);
3333
3334#ifdef HAVE_SYSV_COMPAT
3335 if (s->sysv_path) {
3336 struct stat st;
3337
3338 zero(st);
3339 if (stat(s->sysv_path, &st) < 0)
3340 /* What, cannot access this anymore? */
3341 return true;
3342
3343 if (s->sysv_mtime > 0 &&
3344 timespec_load(&st.st_mtim) != s->sysv_mtime)
3345 return true;
3346 }
3347#endif
3348
3349 return false;
3350}
3351
8a0867d6
LP		 3352static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3353 Service *s = SERVICE(u);
3354 int r = 0;
3355 Set *pid_set = NULL;
3356
3357 assert(s);
3358
3359 if (s->main_pid <= 0 && who == KILL_MAIN) {
3360 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3361 return -ESRCH;
8a0867d6
LP		 3362 }
3363
3364 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3365 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3366 return -ESRCH;
8a0867d6
LP		 3367 }
3368
3611581e
LP		 3369 if (who == KILL_CONTROL || who == KILL_ALL)
3370 if (s->control_pid > 0)
3371 if (kill(s->control_pid, signo) < 0)
3372 r = -errno;
8a0867d6 3373
3611581e
LP		 3374 if (who == KILL_MAIN || who == KILL_ALL)
3375 if (s->main_pid > 0)
3376 if (kill(s->main_pid, signo) < 0)
3377 r = -errno;
8a0867d6 3378
3611581e 3379 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
8a0867d6
LP		 3380 int q;
3381
3382 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3383 return -ENOMEM;
3384
3385 /* Exclude the control/main pid from being killed via the cgroup */
3386 if (s->control_pid > 0)
3387 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3388 r = q;
3389 goto finish;
3390 }
3391
3392 if (s->main_pid > 0)
3393 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3394 r = q;
3395 goto finish;
3396 }
3397
430c18ed 3398 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
3611581e 3399 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
8a0867d6
LP		 3400 r = q;
3401 }
3402
3403finish:
3404 if (pid_set)
3405 set_free(pid_set);
3406
3407 return r;
3408}
3409
94f04347
LP		 3410static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3411 [SERVICE_DEAD] = "dead",
3412 [SERVICE_START_PRE] = "start-pre",
3413 [SERVICE_START] = "start",
3414 [SERVICE_START_POST] = "start-post",
3415 [SERVICE_RUNNING] = "running",
80876c20 3416 [SERVICE_EXITED] = "exited",
94f04347
LP		 3417 [SERVICE_RELOAD] = "reload",
3418 [SERVICE_STOP] = "stop",
3419 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3420 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3421 [SERVICE_STOP_POST] = "stop-post",
3422 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3423 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3424 [SERVICE_FAILED] = "failed",
94f04347
LP		 3425 [SERVICE_AUTO_RESTART] = "auto-restart",
3426};
3427
3428DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3429
3430static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3431 [SERVICE_RESTART_NO] = "no",
3432 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3433 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3434 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3435 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3436};
3437
3438DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3439
3440static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3441 [SERVICE_SIMPLE] = "simple",
0d624a78 3442 [SERVICE_FORKING] = "forking",
34e9ba66 3443 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3444 [SERVICE_DBUS] = "dbus",
3445 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3446};
3447
3448DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3449
e537352b 3450static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3451 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3452 [SERVICE_EXEC_START] = "ExecStart",
3453 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3454 [SERVICE_EXEC_RELOAD] = "ExecReload",
3455 [SERVICE_EXEC_STOP] = "ExecStop",
3456 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3457};
3458
3459DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3460
c952c6ec
LP		 3461static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3462 [NOTIFY_NONE] = "none",
3463 [NOTIFY_MAIN] = "main",
3464 [NOTIFY_ALL] = "all"
3465};
3466
3467DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3468
87f0e418 3469const UnitVTable service_vtable = {
5cb5a6ff 3470 .suffix = ".service",
f975e971
LP		 3471 .sections =
3472 "Unit\0"
3473 "Service\0"
3474 "Install\0",
9e58ff9c 3475 .show_status = true,
5cb5a6ff 3476
034c6ed7
LP		 3477 .init = service_init,
3478 .done = service_done,
a16e1123
LP		 3479 .load = service_load,
3480
3481 .coldplug = service_coldplug,
034c6ed7 3482
5cb5a6ff
LP		 3483 .dump = service_dump,
3484
3485 .start = service_start,
3486 .stop = service_stop,
3487 .reload = service_reload,
3488
034c6ed7
LP		 3489 .can_reload = service_can_reload,
3490
8a0867d6
LP		 3491 .kill = service_kill,
3492
a16e1123
LP		 3493 .serialize = service_serialize,
3494 .deserialize_item = service_deserialize_item,
3495
5cb5a6ff 3496 .active_state = service_active_state,
10a94420 3497 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3498
701cc384
LP		 3499 .check_gc = service_check_gc,
3500 .check_snapshot = service_check_snapshot,
3501
034c6ed7
LP		 3502 .sigchld_event = service_sigchld_event,
3503 .timer_event = service_timer_event,
2c4104f0 3504
fdf20a31 3505 .reset_failed = service_reset_failed,
5632e374 3506
5f4b19f4
LP		 3507 .need_daemon_reload = service_need_daemon_reload,
3508
8e274523 3509 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3510 .notify_message = service_notify_message,
8e274523 3511
05e343b7
LP		 3512 .bus_name_owner_change = service_bus_name_owner_change,
3513 .bus_query_pid_done = service_bus_query_pid_done,
3514
c4e2ceae 3515 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3516 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3517 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3518
07459bb6 3519#ifdef HAVE_SYSV_COMPAT
2c4104f0 3520 .enumerate = service_enumerate
07459bb6 3521#endif
5cb5a6ff 3522};
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