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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
1bd8b818 68#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE) || 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);
0a494f1f
LP		 124 s->exec_context.std_output = u->meta.manager->default_std_output;
125 s->exec_context.std_error = u->meta.manager->default_std_error;
a16e1123
LP		 126
127 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
128
129 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
130}
131
5e94833f
LP		 132static void service_unwatch_control_pid(Service *s) {
133 assert(s);
134
135 if (s->control_pid <= 0)
136 return;
137
138 unit_unwatch_pid(UNIT(s), s->control_pid);
139 s->control_pid = 0;
140}
141
142static void service_unwatch_main_pid(Service *s) {
143 assert(s);
144
145 if (s->main_pid <= 0)
146 return;
147
148 unit_unwatch_pid(UNIT(s), s->main_pid);
149 s->main_pid = 0;
150}
151
5925dd3c 152static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 153 pid_t ppid;
154
5925dd3c
LP		 155 assert(s);
156
157 if (pid <= 1)
158 return -EINVAL;
159
160 if (pid == getpid())
161 return -EINVAL;
162
6dfa5494
LP		 163 s->main_pid = pid;
164 s->main_pid_known = true;
165
166 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
e55224ca
LP		 167 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
168 s->meta.id, (unsigned long) pid);
169
6dfa5494
LP		 170 s->main_pid_alien = true;
171 } else
172 s->main_pid_alien = false;
5925dd3c 173
b58b4116
LP		 174 exec_status_start(&s->main_exec_status, pid);
175
5925dd3c
LP		 176 return 0;
177}
178
4f2d528d
LP		 179static void service_close_socket_fd(Service *s) {
180 assert(s);
181
182 if (s->socket_fd < 0)
183 return;
184
185 close_nointr_nofail(s->socket_fd);
186 s->socket_fd = -1;
187}
188
6cf6bbc2
LP		 189static void service_connection_unref(Service *s) {
190 assert(s);
191
f976f3f6 192 if (!s->accept_socket)
6cf6bbc2
LP		 193 return;
194
f976f3f6
LP		 195 socket_connection_unref(s->accept_socket);
196 s->accept_socket = NULL;
6cf6bbc2
LP		 197}
198
87f0e418
LP		 199static void service_done(Unit *u) {
200 Service *s = SERVICE(u);
44d8db9e
LP		 201
202 assert(s);
203
204 free(s->pid_file);
205 s->pid_file = NULL;
206
07459bb6 207#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 208 free(s->sysv_path);
209 s->sysv_path = NULL;
210
8309400a
LP		 211 free(s->sysv_runlevels);
212 s->sysv_runlevels = NULL;
07459bb6 213#endif
8309400a 214
8c47c732
LP		 215 free(s->status_text);
216 s->status_text = NULL;
217
44d8db9e 218 exec_context_done(&s->exec_context);
e537352b 219 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 220 s->control_command = NULL;
867b3b7d 221 s->main_command = NULL;
44d8db9e
LP		 222
223 /* This will leak a process, but at least no memory or any of
224 * our resources */
5e94833f
LP		 225 service_unwatch_main_pid(s);
226 service_unwatch_control_pid(s);
44d8db9e 227
05e343b7
LP		 228 if (s->bus_name) {
229 unit_unwatch_bus_name(UNIT(u), s->bus_name);
230 free(s->bus_name);
231 s->bus_name = NULL;
232 }
233
4f2d528d 234 service_close_socket_fd(s);
6cf6bbc2 235 service_connection_unref(s);
4f2d528d 236
f976f3f6
LP		 237 set_free(s->configured_sockets);
238
acbb0225 239 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 240}
241
07459bb6 242#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 243static char *sysv_translate_name(const char *name) {
244 char *r;
245
246 if (!(r = new(char, strlen(name) + sizeof(".service"))))
247 return NULL;
248
1bd8b818 249#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198
MB		 250 if (endswith(name, ".sh"))
251 /* Drop Debian-style .sh suffix */
252 strcpy(stpcpy(r, name) - 3, ".service");
253#endif
254#ifdef TARGET_SUSE
b7ccee3c
LP		 255 if (startswith(name, "boot."))
256 /* Drop SuSE-style boot. prefix */
257 strcpy(stpcpy(r, name + 5), ".service");
5b819198 258#endif
65530632 259#ifdef TARGET_FRUGALWARE
5b819198 260 if (startswith(name, "rc."))
65530632
MV		 261 /* Drop Frugalware-style rc. prefix */
262 strcpy(stpcpy(r, name + 3), ".service");
980900c1 263#endif
b7ccee3c
LP		 264 else
265 /* Normal init scripts */
266 strcpy(stpcpy(r, name), ".service");
267
268 return r;
269}
270
ee95669f 271static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 272
a7d3cc26
LP		 273 /* We silently ignore the $ prefix here. According to the LSB
274 * spec it simply indicates whether something is a
275 * standardized name or a distribution-specific one. Since we
276 * just follow what already exists and do not introduce new
277 * uses or names we don't care who introduced a new name. */
278
2c4104f0 279 static const char * const table[] = {
6464aa08 280 /* LSB defined facilities */
a7d3cc26 281 "local_fs", SPECIAL_LOCAL_FS_TARGET,
1de4d79b 282#ifndef TARGET_MANDRIVA
8d0e38a2
LP		 283 /* Due to unfortunate name selection in Mandriva,
284 * $network is provided by network-up which is ordered
285 * after network which actually starts interfaces.
286 * To break the loop, just ignore it */
a7d3cc26 287 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 288#endif
a7d3cc26
LP		 289 "named", SPECIAL_NSS_LOOKUP_TARGET,
290 "portmap", SPECIAL_RPCBIND_TARGET,
291 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
292 "syslog", SPECIAL_SYSLOG_TARGET,
4466194c 293 "time", SPECIAL_TIME_SYNC_TARGET,
6464aa08 294
0b603b4e
KS		 295 /* common extensions */
296 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
297 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
298 "null", NULL,
299
1bd8b818 300#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
a7d3cc26 301 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 302#endif
3177a49c
LP		 303
304#ifdef TARGET_FEDORA
a7d3cc26
LP		 305 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
306 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
307 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 308#endif
a7d3cc26 309
0b603b4e
KS		 310#ifdef TARGET_SUSE
311 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
312#endif
2c4104f0
LP		 313 };
314
315 unsigned i;
316 char *r;
ee95669f 317 const char *n;
2c4104f0 318
ee95669f
LP		 319 assert(name);
320 assert(_r);
a7d3cc26 321
ee95669f 322 n = *name == '$' ? name + 1 : name;
a7d3cc26 323
ee95669f 324 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 325
ee95669f
LP		 326 if (!streq(table[i], n))
327 continue;
2c4104f0 328
ee95669f
LP		 329 if (!table[i+1])
330 return 0;
331
332 if (!(r = strdup(table[i+1])))
333 return -ENOMEM;
334
335 goto finish;
336 }
2c4104f0 337
a7d3cc26 338 /* If we don't know this name, fallback heuristics to figure
0003d1ab 339 * out whether something is a target or a service alias. */
a7d3cc26 340
e83c7c0b
LP		 341 if (*name == '$') {
342 if (!unit_prefix_is_valid(n))
343 return -EINVAL;
344
ee95669f
LP		 345 /* Facilities starting with $ are most likely targets */
346 r = unit_name_build(n, NULL, ".target");
e83c7c0b 347 } else if (filename && streq(name, filename))
35b8ca3a 348 /* Names equaling the file name of the services are redundant */
ee95669f 349 return 0;
32159d3a 350 else
ee95669f
LP		 351 /* Everything else we assume to be normal service names */
352 r = sysv_translate_name(n);
2c4104f0 353
32159d3a 354 if (!r)
2c4104f0
LP		 355 return -ENOMEM;
356
357finish:
b4353094 358 *_r = r;
2c4104f0
LP		 359
360 return 1;
361}
362
56d748b4 363static int sysv_fix_order(Service *s) {
2c4104f0
LP		 364 Meta *other;
365 int r;
366
367 assert(s);
368
369 if (s->sysv_start_priority < 0)
370 return 0;
371
23a177ef
LP		 372 /* For each pair of services where at least one lacks a LSB
373 * header, we use the start priority value to order things. */
2c4104f0 374
ab5c3e3f 375 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
2c4104f0
LP		 376 Service *t;
377 UnitDependency d;
eeaafddc 378 bool special_s, special_t;
2c4104f0
LP		 379
380 t = (Service*) other;
381
382 if (s == t)
383 continue;
9f151f29
LP		 384
385 if (t->meta.load_state != UNIT_LOADED)
386 continue;
2c4104f0
LP		 387
388 if (t->sysv_start_priority < 0)
389 continue;
390
51a1a79d
LP		 391 /* If both units have modern headers we don't care
392 * about the priorities */
f21781d5
LP		 393 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
394 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 395 continue;
396
eeaafddc
LP		 397 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
398 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
399
400 if (special_t && !special_s)
401 d = UNIT_AFTER;
402 else if (special_s && !special_t)
403 d = UNIT_BEFORE;
404 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 405 d = UNIT_AFTER;
406 else if (t->sysv_start_priority > s->sysv_start_priority)
407 d = UNIT_BEFORE;
408 else
409 continue;
410
411 /* FIXME: Maybe we should compare the name here lexicographically? */
412
da19d5c1 413 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 414 return r;
415 }
416
417 return 0;
418}
419
420static ExecCommand *exec_command_new(const char *path, const char *arg1) {
421 ExecCommand *c;
422
423 if (!(c = new0(ExecCommand, 1)))
424 return NULL;
425
426 if (!(c->path = strdup(path))) {
427 free(c);
428 return NULL;
429 }
430
431 if (!(c->argv = strv_new(path, arg1, NULL))) {
432 free(c->path);
433 free(c);
434 return NULL;
435 }
436
437 return c;
438}
439
440static int sysv_exec_commands(Service *s) {
441 ExecCommand *c;
442
443 assert(s);
444 assert(s->sysv_path);
445
446 if (!(c = exec_command_new(s->sysv_path, "start")))
447 return -ENOMEM;
448 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
449
450 if (!(c = exec_command_new(s->sysv_path, "stop")))
451 return -ENOMEM;
452 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
453
454 if (!(c = exec_command_new(s->sysv_path, "reload")))
455 return -ENOMEM;
456 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
457
458 return 0;
459}
460
e537352b 461static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 462 FILE *f;
463 Unit *u;
464 unsigned line = 0;
465 int r;
466 enum {
467 NORMAL,
468 DESCRIPTION,
469 LSB,
470 LSB_DESCRIPTION
471 } state = NORMAL;
0b5d26f9 472 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
5f4b19f4 473 struct stat st;
23a177ef
LP		 474
475 assert(s);
476 assert(path);
2c4104f0
LP		 477
478 u = UNIT(s);
479
480 if (!(f = fopen(path, "re"))) {
481 r = errno == ENOENT ? 0 : -errno;
482 goto finish;
483 }
484
5f4b19f4
LP		 485 zero(st);
486 if (fstat(fileno(f), &st) < 0) {
487 r = -errno;
488 goto finish;
489 }
490
2c4104f0
LP		 491 free(s->sysv_path);
492 if (!(s->sysv_path = strdup(path))) {
493 r = -ENOMEM;
494 goto finish;
495 }
496
5f4b19f4
LP		 497 s->sysv_mtime = timespec_load(&st.st_mtim);
498
499 if (null_or_empty(&st)) {
500 u->meta.load_state = UNIT_MASKED;
501 r = 0;
502 goto finish;
503 }
504
2c4104f0
LP		 505 while (!feof(f)) {
506 char l[LINE_MAX], *t;
507
508 if (!fgets(l, sizeof(l), f)) {
509 if (feof(f))
510 break;
511
512 r = -errno;
513 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
514 goto finish;
515 }
516
517 line++;
518
519 t = strstrip(l);
520 if (*t != '#')
521 continue;
522
523 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
524 state = LSB;
23a177ef 525 s->sysv_has_lsb = true;
2c4104f0
LP		 526 continue;
527 }
528
529 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
530 state = NORMAL;
531 continue;
532 }
533
534 t++;
535 t += strspn(t, WHITESPACE);
536
537 if (state == NORMAL) {
538
539 /* Try to parse Red Hat style chkconfig headers */
540
c2b35af6 541 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 542 int start_priority;
8309400a 543 char runlevels[16], *k;
2c4104f0
LP		 544
545 state = NORMAL;
546
8309400a
LP		 547 if (sscanf(t+10, "%15s %i %*i",
548 runlevels,
549 &start_priority) != 2) {
2c4104f0
LP		 550
551 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
552 continue;
553 }
554
fbe9f3a9
LP		 555 /* A start priority gathered from the
556 * symlink farms is preferred over the
557 * data from the LSB header. */
8309400a 558 if (start_priority < 0 || start_priority > 99)
2c4104f0 559 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
ea87ca5a 560 else
8309400a
LP		 561 s->sysv_start_priority = start_priority;
562
563 char_array_0(runlevels);
564 k = delete_chars(runlevels, WHITESPACE "-");
565
566 if (k[0]) {
567 char *d;
568
569 if (!(d = strdup(k))) {
570 r = -ENOMEM;
571 goto finish;
572 }
573
574 free(s->sysv_runlevels);
575 s->sysv_runlevels = d;
2c4104f0
LP		 576 }
577
0b5d26f9 578 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 579
580 size_t k = strlen(t);
581 char *d;
0b5d26f9 582 const char *j;
2c4104f0
LP		 583
584 if (t[k-1] == '\\') {
585 state = DESCRIPTION;
586 t[k-1] = 0;
587 }
588
0b5d26f9
LP		 589 if ((j = strstrip(t+12)) && *j) {
590 if (!(d = strdup(j))) {
591 r = -ENOMEM;
592 goto finish;
593 }
594 } else
595 d = NULL;
2c4104f0 596
0b5d26f9
LP		 597 free(chkconfig_description);
598 chkconfig_description = d;
2c4104f0 599
c2b35af6 600 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 601
602 char *fn;
603
604 state = NORMAL;
605
606 fn = strstrip(t+8);
607 if (!path_is_absolute(fn)) {
608 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
609 continue;
610 }
611
612 if (!(fn = strdup(fn))) {
613 r = -ENOMEM;
614 goto finish;
615 }
616
617 free(s->pid_file);
618 s->pid_file = fn;
619 }
620
621 } else if (state == DESCRIPTION) {
622
623 /* Try to parse Red Hat style description
624 * continuation */
625
626 size_t k = strlen(t);
0b5d26f9 627 char *j;
2c4104f0
LP		 628
629 if (t[k-1] == '\\')
630 t[k-1] = 0;
631 else
632 state = NORMAL;
633
0b5d26f9
LP		 634 if ((j = strstrip(t)) && *j) {
635 char *d = NULL;
636
637 if (chkconfig_description)
44d91056 638 d = join(chkconfig_description, " ", j, NULL);
0b5d26f9
LP		 639 else
640 d = strdup(j);
2c4104f0 641
0b5d26f9
LP		 642 if (!d) {
643 r = -ENOMEM;
644 goto finish;
645 }
646
647 free(chkconfig_description);
648 chkconfig_description = d;
649 }
2c4104f0
LP		 650
651 } else if (state == LSB || state == LSB_DESCRIPTION) {
652
c2b35af6 653 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 654 char *i, *w;
655 size_t z;
656
657 state = LSB;
658
f60f22df 659 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 660 char *n, *m;
661
662 if (!(n = strndup(w, z))) {
663 r = -ENOMEM;
664 goto finish;
665 }
666
ee95669f 667 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 668 free(n);
669
670 if (r < 0)
671 goto finish;
672
673 if (r == 0)
674 continue;
675
bd77d0fc
LP		 676 if (unit_name_to_type(m) == UNIT_SERVICE)
677 r = unit_add_name(u, m);
9700edb4
LP		 678 else
679 /* NB: SysV targets
680 * which are provided
681 * by a service are
682 * pulled in by the
683 * services, as an
684 * indication that the
685 * generic service is
686 * now available. This
687 * is strictly
688 * one-way. The
689 * targets do NOT pull
690 * in the SysV
691 * services! */
692 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 693
2c4104f0 694 if (r < 0)
43a37549 695 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 696
697 free(m);
2c4104f0
LP		 698 }
699
c2b35af6
LP		 700 } else if (startswith_no_case(t, "Required-Start:") ||
701 startswith_no_case(t, "Should-Start:") ||
702 startswith_no_case(t, "X-Start-Before:") ||
703 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 704 char *i, *w;
705 size_t z;
706
707 state = LSB;
708
f60f22df 709 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 710 char *n, *m;
711
712 if (!(n = strndup(w, z))) {
713 r = -ENOMEM;
714 goto finish;
715 }
716
ee95669f 717 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 718
e83c7c0b
LP		 719 if (r < 0) {
720 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
721 free(n);
722 continue;
723 }
724
725 free(n);
2c4104f0
LP		 726
727 if (r == 0)
728 continue;
729
c2b35af6 730 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 731
732 if (r < 0)
43a37549 733 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 734
735 free(m);
2c4104f0 736 }
c2b35af6 737 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 738 char *k, *d;
739
740 state = LSB;
741
742 k = delete_chars(t+14, WHITESPACE "-");
743
744 if (k[0] != 0) {
745 if (!(d = strdup(k))) {
746 r = -ENOMEM;
747 goto finish;
748 }
749
750 free(s->sysv_runlevels);
751 s->sysv_runlevels = d;
752 }
2c4104f0 753
0b5d26f9
LP		 754 } else if (startswith_no_case(t, "Description:")) {
755 char *d, *j;
ed4c1cc6 756
2c4104f0
LP		 757 state = LSB_DESCRIPTION;
758
0b5d26f9
LP		 759 if ((j = strstrip(t+12)) && *j) {
760 if (!(d = strdup(j))) {
761 r = -ENOMEM;
762 goto finish;
763 }
764 } else
765 d = NULL;
2c4104f0 766
0b5d26f9
LP		 767 free(long_description);
768 long_description = d;
2c4104f0 769
ed4c1cc6 770 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 771 char *d, *j;
2c4104f0 772
2c4104f0
LP		 773 state = LSB;
774
0b5d26f9
LP		 775 if ((j = strstrip(t+18)) && *j) {
776 if (!(d = strdup(j))) {
777 r = -ENOMEM;
778 goto finish;
779 }
780 } else
781 d = NULL;
2c4104f0 782
0b5d26f9
LP		 783 free(short_description);
784 short_description = d;
2c4104f0 785
723c83fd
LP		 786 } else if (startswith_no_case(t, "X-Interactive:")) {
787 int b;
788
789 if ((b = parse_boolean(strstrip(t+14))) < 0) {
790 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
791 continue;
792 }
793
794 if (b)
795 s->exec_context.std_input = EXEC_INPUT_TTY;
796 else
797 s->exec_context.std_input = EXEC_INPUT_NULL;
798
2c4104f0
LP		 799 } else if (state == LSB_DESCRIPTION) {
800
801 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 802 char *j;
2c4104f0 803
0b5d26f9
LP		 804 if ((j = strstrip(t)) && *j) {
805 char *d = NULL;
806
807 if (long_description)
44d91056 808 d = join(long_description, " ", t, NULL);
0b5d26f9
LP		 809 else
810 d = strdup(j);
811
812 if (!d) {
813 r = -ENOMEM;
814 goto finish;
815 }
816
817 free(long_description);
818 long_description = d;
2c4104f0
LP		 819 }
820
2c4104f0
LP		 821 } else
822 state = LSB;
823 }
824 }
825 }
826
2c4104f0
LP		 827 if ((r = sysv_exec_commands(s)) < 0)
828 goto finish;
829
a40eb732 830 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 831 /* If there a runlevels configured for this service
832 * but none of the standard ones, then we assume this
833 * is some special kind of service (which might be
834 * needed for early boot) and don't create any links
835 * to it. */
836
a40eb732 837 s->meta.default_dependencies = false;
09cd1ab1 838
09cd1ab1
LP		 839 /* Don't timeout special services during boot (like fsck) */
840 s->timeout_usec = 0;
f34277d9
LP		 841 } else
842 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 843
80876c20 844 /* Special setting for all SysV services */
1f48cf56 845 s->type = SERVICE_FORKING;
f8788303 846 s->remain_after_exit = !s->pid_file;
525ee6f4 847 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 848 s->exec_context.std_output =
849 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
0a494f1f 850 ? EXEC_OUTPUT_TTY : s->meta.manager->default_std_output;
cd25cce9 851 s->exec_context.kill_mode = KILL_PROCESS;
80876c20 852
0b5d26f9
LP		 853 /* We use the long description only if
854 * no short description is set. */
855
856 if (short_description)
857 description = short_description;
858 else if (chkconfig_description)
859 description = chkconfig_description;
860 else if (long_description)
861 description = long_description;
862 else
863 description = NULL;
864
865 if (description) {
866 char *d;
867
e527618d 868 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 869 r = -ENOMEM;
870 goto finish;
871 }
872
873 u->meta.description = d;
874 }
875
ea87ca5a
LP		 876 /* The priority that has been set in /etc/rcN.d/ hierarchies
877 * takes precedence over what is stored as default in the LSB
878 * header */
879 if (s->sysv_start_priority_from_rcnd >= 0)
880 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
881
e537352b 882 u->meta.load_state = UNIT_LOADED;
23a177ef 883 r = 0;
2c4104f0
LP		 884
885finish:
886
887 if (f)
888 fclose(f);
889
0b5d26f9
LP		 890 free(short_description);
891 free(long_description);
892 free(chkconfig_description);
893
2c4104f0
LP		 894 return r;
895}
896
e537352b 897static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 898 char **p;
899
900 assert(s);
901 assert(name);
902
e1992852 903 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 904 * prefixes/suffixes. */
1bd8b818 905#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198 906 if (endswith(name, ".sh.service"))
d017c6ca 907 return -ENOENT;
5b819198
MB		 908#endif
909
910#ifdef TARGET_SUSE
911 if (startswith(name, "boot."))
912 return -ENOENT;
913#endif
914
915#ifdef TARGET_FRUGALWARE
916 if (startswith(name, "rc."))
917 return -ENOENT;
918#endif
d017c6ca 919
4cd1fbcc 920 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 921 char *path;
922 int r;
923
44d91056
LP		 924 path = join(*p, "/", name, NULL);
925 if (!path)
2c4104f0
LP		 926 return -ENOMEM;
927
928 assert(endswith(path, ".service"));
929 path[strlen(path)-8] = 0;
930
e537352b 931 r = service_load_sysv_path(s, path);
fbe9f3a9 932
1bd8b818 933#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
4cd1fbcc 934 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 935 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 936 strcat(path, ".sh");
937 r = service_load_sysv_path(s, path);
938 }
e1992852 939#endif
2c4104f0
LP		 940 free(path);
941
e1992852 942#ifdef TARGET_SUSE
4cd1fbcc 943 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 944 /* Try SUSE style boot.* init scripts */
fbe9f3a9 945
44d91056
LP		 946 path = join(*p, "/boot.", name, NULL);
947 if (!path)
fbe9f3a9
LP		 948 return -ENOMEM;
949
e1992852 950 /* Drop .service suffix */
fbe9f3a9
LP		 951 path[strlen(path)-8] = 0;
952 r = service_load_sysv_path(s, path);
953 free(path);
954 }
e1992852 955#endif
fbe9f3a9 956
e1992852 957#ifdef TARGET_FRUGALWARE
65530632 958 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 959 /* Try Frugalware style rc.* init scripts */
65530632 960
44d91056
LP		 961 path = join(*p, "/rc.", name, NULL);
962 if (!path)
65530632
MV		 963 return -ENOMEM;
964
e1992852 965 /* Drop .service suffix */
65530632
MV		 966 path[strlen(path)-8] = 0;
967 r = service_load_sysv_path(s, path);
968 free(path);
969 }
e1992852 970#endif
65530632 971
23a177ef 972 if (r < 0)
2c4104f0 973 return r;
23a177ef 974
4cd1fbcc 975 if ((s->meta.load_state != UNIT_STUB))
23a177ef 976 break;
2c4104f0
LP		 977 }
978
979 return 0;
980}
981
e537352b 982static int service_load_sysv(Service *s) {
2c4104f0
LP		 983 const char *t;
984 Iterator i;
985 int r;
986
5cb5a6ff
LP		 987 assert(s);
988
989 /* Load service data from SysV init scripts, preferably with
990 * LSB headers ... */
991
4cd1fbcc 992 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 993 return 0;
994
4cd1fbcc 995 if ((t = s->meta.id))
e537352b 996 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 997 return r;
998
4cd1fbcc
LP		 999 if (s->meta.load_state == UNIT_STUB)
1000 SET_FOREACH(t, s->meta.names, i) {
1001 if (t == s->meta.id)
e537352b
LP		 1002 continue;
1003
e364ad06 1004 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 1005 return r;
1006
4cd1fbcc 1007 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 1008 break;
1009 }
2c4104f0
LP		 1010
1011 return 0;
5cb5a6ff 1012}
07459bb6 1013#endif
5cb5a6ff 1014
9fff8a1f
LP		 1015static int fsck_fix_order(Service *s) {
1016 Meta *other;
1017 int r;
1018
1019 assert(s);
1020
1021 if (s->fsck_passno <= 0)
1022 return 0;
1023
1024 /* For each pair of services where both have an fsck priority
1025 * we order things based on it. */
1026
ab5c3e3f 1027 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1028 Service *t;
1029 UnitDependency d;
1030
1031 t = (Service*) other;
1032
1033 if (s == t)
1034 continue;
1035
1036 if (t->meta.load_state != UNIT_LOADED)
1037 continue;
1038
1039 if (t->fsck_passno <= 0)
1040 continue;
1041
1042 if (t->fsck_passno < s->fsck_passno)
1043 d = UNIT_AFTER;
1044 else if (t->fsck_passno > s->fsck_passno)
1045 d = UNIT_BEFORE;
1046 else
1047 continue;
1048
da19d5c1 1049 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1050 return r;
1051 }
1052
1053 return 0;
1054}
1055
243b1432
LP		 1056static int service_verify(Service *s) {
1057 assert(s);
1058
4cd1fbcc 1059 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1060 return 0;
1061
1062 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1063 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1064 return -EINVAL;
1065 }
1066
34e9ba66
LP		 1067 if (s->type != SERVICE_ONESHOT &&
1068 s->exec_command[SERVICE_EXEC_START]->command_next) {
1069 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1070 return -EINVAL;
1071 }
1072
c06b7a15
LP		 1073 if (s->type == SERVICE_ONESHOT &&
1074 s->exec_command[SERVICE_EXEC_RELOAD]) {
1075 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1076 return -EINVAL;
1077 }
1078
05e343b7 1079 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1080 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1081 return -EINVAL;
1082 }
1083
2e22afe9 1084 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1085 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1086 return -EINVAL;
1087 }
1088
243b1432
LP		 1089 return 0;
1090}
1091
a40eb732
LP		 1092static int service_add_default_dependencies(Service *s) {
1093 int r;
1094
1095 assert(s);
1096
1097 /* Add a number of automatic dependencies useful for the
1098 * majority of services. */
1099
1100 /* First, pull in base system */
1101 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1102
1103 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1104 return r;
1105
af2d49f7 1106 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1107
1108 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1109 return r;
1110 }
1111
1112 /* Second, activate normal shutdown */
ead8e478 1113 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1114}
1115
e537352b
LP		 1116static int service_load(Unit *u) {
1117 int r;
1118 Service *s = SERVICE(u);
1119
1120 assert(s);
1e2e8133 1121
5cb5a6ff 1122 /* Load a .service file */
e537352b 1123 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1124 return r;
1125
07459bb6 1126#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1127 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1128 if (u->meta.load_state == UNIT_STUB)
1129 if ((r = service_load_sysv(s)) < 0)
23a177ef 1130 return r;
07459bb6 1131#endif
d46de8a1 1132
23a177ef 1133 /* Still nothing found? Then let's give up */
e537352b 1134 if (u->meta.load_state == UNIT_STUB)
23a177ef 1135 return -ENOENT;
034c6ed7 1136
23a177ef
LP		 1137 /* We were able to load something, then let's add in the
1138 * dropin directories. */
1139 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1140 return r;
23a177ef
LP		 1141
1142 /* This is a new unit? Then let's add in some extras */
e537352b 1143 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1144 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1145 return r;
1146
d686d8a9 1147 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1148 return r;
1149
07459bb6 1150#ifdef HAVE_SYSV_COMPAT
56d748b4 1151 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1152 return r;
07459bb6 1153#endif
05e343b7 1154
9fff8a1f
LP		 1155 if ((r = fsck_fix_order(s)) < 0)
1156 return r;
1157
ee0dd802 1158 if (s->bus_name)
05e343b7 1159 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1160 return r;
c952c6ec
LP		 1161
1162 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1163 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1164
1165 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1166 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1167 return r;
1168
1169 if (s->meta.default_dependencies)
1170 if ((r = service_add_default_dependencies(s)) < 0)
1171 return r;
8e274523
LP		 1172 }
1173
243b1432 1174 return service_verify(s);
034c6ed7
LP		 1175}
1176
87f0e418 1177static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1178
5cb5a6ff 1179 ServiceExecCommand c;
87f0e418 1180 Service *s = SERVICE(u);
47be870b
LP		 1181 const char *prefix2;
1182 char *p2;
5cb5a6ff
LP		 1183
1184 assert(s);
1185
47be870b
LP		 1186 p2 = strappend(prefix, "\t");
1187 prefix2 = p2 ? p2 : prefix;
44d8db9e 1188
5cb5a6ff 1189 fprintf(f,
81a2b7ce
LP		 1190 "%sService State: %s\n"
1191 "%sPermissionsStartOnly: %s\n"
8e274523 1192 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1193 "%sRemainAfterExit: %s\n"
3185a36b 1194 "%sGuessMainPID: %s\n"
c952c6ec 1195 "%sType: %s\n"
2cf3143a 1196 "%sRestart: %s\n"
c952c6ec 1197 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1198 prefix, service_state_to_string(s->state),
1199 prefix, yes_no(s->permissions_start_only),
8e274523 1200 prefix, yes_no(s->root_directory_start_only),
02ee865a 1201 prefix, yes_no(s->remain_after_exit),
3185a36b 1202 prefix, yes_no(s->guess_main_pid),
c952c6ec 1203 prefix, service_type_to_string(s->type),
2cf3143a 1204 prefix, service_restart_to_string(s->restart),
c952c6ec 1205 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1206
70123e68
LP		 1207 if (s->control_pid > 0)
1208 fprintf(f,
bb00e604
LP		 1209 "%sControl PID: %lu\n",
1210 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1211
1212 if (s->main_pid > 0)
1213 fprintf(f,
6dfa5494
LP		 1214 "%sMain PID: %lu\n"
1215 "%sMain PID Known: %s\n"
1216 "%sMain PID Alien: %s\n",
1217 prefix, (unsigned long) s->main_pid,
1218 prefix, yes_no(s->main_pid_known),
1219 prefix, yes_no(s->main_pid_alien));
70123e68 1220
034c6ed7
LP		 1221 if (s->pid_file)
1222 fprintf(f,
1223 "%sPIDFile: %s\n",
1224 prefix, s->pid_file);
1225
05e343b7
LP		 1226 if (s->bus_name)
1227 fprintf(f,
1228 "%sBusName: %s\n"
1229 "%sBus Name Good: %s\n",
1230 prefix, s->bus_name,
1231 prefix, yes_no(s->bus_name_good));
1232
5cb5a6ff
LP		 1233 exec_context_dump(&s->exec_context, f, prefix);
1234
e537352b 1235 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1236
44d8db9e
LP		 1237 if (!s->exec_command[c])
1238 continue;
1239
40d50879 1240 fprintf(f, "%s-> %s:\n",
94f04347 1241 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1242
1243 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1244 }
44d8db9e 1245
07459bb6 1246#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1247 if (s->sysv_path)
1248 fprintf(f,
23a177ef 1249 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1250 "%sSysV Init Script has LSB Header: %s\n"
1251 "%sSysVEnabled: %s\n",
23a177ef 1252 prefix, s->sysv_path,
9fff8a1f
LP		 1253 prefix, yes_no(s->sysv_has_lsb),
1254 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1255
1256 if (s->sysv_start_priority >= 0)
1257 fprintf(f,
9fff8a1f
LP		 1258 "%sSysVStartPriority: %i\n",
1259 prefix, s->sysv_start_priority);
2c4104f0 1260
8309400a
LP		 1261 if (s->sysv_runlevels)
1262 fprintf(f, "%sSysVRunLevels: %s\n",
1263 prefix, s->sysv_runlevels);
07459bb6 1264#endif
23a177ef 1265
9fff8a1f
LP		 1266 if (s->fsck_passno > 0)
1267 fprintf(f,
1268 "%sFsckPassNo: %i\n",
1269 prefix, s->fsck_passno);
1270
8c47c732
LP		 1271 if (s->status_text)
1272 fprintf(f, "%sStatus Text: %s\n",
1273 prefix, s->status_text);
1274
47be870b 1275 free(p2);
5cb5a6ff
LP		 1276}
1277
034c6ed7
LP		 1278static int service_load_pid_file(Service *s) {
1279 char *k;
034c6ed7 1280 int r;
5925dd3c 1281 pid_t pid;
034c6ed7
LP		 1282
1283 assert(s);
1284
6dfa5494
LP		 1285 if (s->main_pid_known)
1286 return 0;
1287
034c6ed7 1288 if (!s->pid_file)
6dfa5494 1289 return 0;
034c6ed7
LP		 1290
1291 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1292 return r;
1293
5925dd3c
LP		 1294 r = parse_pid(k, &pid);
1295 free(k);
034c6ed7 1296
5925dd3c
LP		 1297 if (r < 0)
1298 return r;
406eaf93 1299
5925dd3c
LP		 1300 if (kill(pid, 0) < 0 && errno != EPERM) {
1301 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1302 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1303 return -ESRCH;
1304 }
1305
5925dd3c 1306 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1307 return r;
1308
5925dd3c
LP		 1309 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1310 /* FIXME: we need to do something here */
1311 return r;
034c6ed7
LP		 1312
1313 return 0;
1314}
1315
4fbf50b3
LP		 1316static int service_search_main_pid(Service *s) {
1317 pid_t pid;
1318 int r;
1319
1320 assert(s);
1321
3185a36b
LP		 1322 /* If we know it anyway, don't ever fallback to unreliable
1323 * heuristics */
4fbf50b3
LP		 1324 if (s->main_pid_known)
1325 return 0;
1326
3185a36b
LP		 1327 if (!s->guess_main_pid)
1328 return 0;
1329
4fbf50b3
LP		 1330 assert(s->main_pid <= 0);
1331
1332 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1333 return -ENOENT;
1334
1335 if ((r = service_set_main_pid(s, pid)) < 0)
1336 return r;
1337
1338 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1339 /* FIXME: we need to do something here */
1340 return r;
1341
1342 return 0;
1343}
1344
3e33402a
LP		 1345static int service_get_sockets(Service *s, Set **_set) {
1346 Set *set;
ceee3d82
LP		 1347 Iterator i;
1348 char *t;
3e33402a 1349 int r;
ceee3d82
LP		 1350
1351 assert(s);
3e33402a
LP		 1352 assert(_set);
1353
6cf6bbc2
LP		 1354 if (s->socket_fd >= 0)
1355 return 0;
1356
f976f3f6
LP		 1357 if (!set_isempty(s->configured_sockets))
1358 return 0;
1359
3e33402a
LP		 1360 /* Collects all Socket objects that belong to this
1361 * service. Note that a service might have multiple sockets
1362 * via multiple names. */
1363
1364 if (!(set = set_new(NULL, NULL)))
1365 return -ENOMEM;
ceee3d82 1366
4cd1fbcc 1367 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1368 char *k;
1369 Unit *p;
1370
1371 /* Look for all socket objects that go by any of our
1372 * units and collect their fds */
1373
3e33402a
LP		 1374 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1375 r = -ENOMEM;
1376 goto fail;
1377 }
ceee3d82 1378
4cd1fbcc 1379 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1380 free(k);
1381
8d567588
LP		 1382 if (!p)
1383 continue;
ceee3d82 1384
3e33402a
LP		 1385 if ((r = set_put(set, p)) < 0)
1386 goto fail;
ceee3d82
LP		 1387 }
1388
3e33402a
LP		 1389 *_set = set;
1390 return 0;
1391
1392fail:
1393 set_free(set);
1394 return r;
1395}
1396
e537352b 1397static int service_notify_sockets_dead(Service *s) {
3e33402a 1398 Iterator i;
f976f3f6 1399 Set *set, *free_set = NULL;
47be870b 1400 Socket *sock;
3e33402a
LP		 1401 int r;
1402
1403 assert(s);
1404
f976f3f6
LP		 1405 /* Notifies all our sockets when we die */
1406
6cf6bbc2
LP		 1407 if (s->socket_fd >= 0)
1408 return 0;
1409
f976f3f6
LP		 1410 if (!set_isempty(s->configured_sockets))
1411 set = s->configured_sockets;
1412 else {
1413 if ((r = service_get_sockets(s, &free_set)) < 0)
1414 return r;
1415
1416 set = free_set;
1417 }
3e33402a 1418
47be870b
LP		 1419 SET_FOREACH(sock, set, i)
1420 socket_notify_service_dead(sock);
3e33402a 1421
f976f3f6 1422 set_free(free_set);
3e33402a 1423
ceee3d82
LP		 1424 return 0;
1425}
1426
034c6ed7
LP		 1427static void service_set_state(Service *s, ServiceState state) {
1428 ServiceState old_state;
5cb5a6ff
LP		 1429 assert(s);
1430
034c6ed7 1431 old_state = s->state;
5cb5a6ff 1432 s->state = state;
034c6ed7
LP		 1433
1434 if (state != SERVICE_START_PRE &&
1435 state != SERVICE_START &&
1436 state != SERVICE_START_POST &&
1437 state != SERVICE_RELOAD &&
1438 state != SERVICE_STOP &&
1439 state != SERVICE_STOP_SIGTERM &&
1440 state != SERVICE_STOP_SIGKILL &&
1441 state != SERVICE_STOP_POST &&
1442 state != SERVICE_FINAL_SIGTERM &&
1443 state != SERVICE_FINAL_SIGKILL &&
1444 state != SERVICE_AUTO_RESTART)
acbb0225 1445 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1446
7d55e835
LP		 1447 if (state != SERVICE_START &&
1448 state != SERVICE_START_POST &&
034c6ed7
LP		 1449 state != SERVICE_RUNNING &&
1450 state != SERVICE_RELOAD &&
1451 state != SERVICE_STOP &&
1452 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1453 state != SERVICE_STOP_SIGKILL) {
5e94833f 1454 service_unwatch_main_pid(s);
867b3b7d
LP		 1455 s->main_command = NULL;
1456 }
034c6ed7
LP		 1457
1458 if (state != SERVICE_START_PRE &&
1459 state != SERVICE_START &&
1460 state != SERVICE_START_POST &&
1461 state != SERVICE_RELOAD &&
1462 state != SERVICE_STOP &&
1463 state != SERVICE_STOP_SIGTERM &&
1464 state != SERVICE_STOP_SIGKILL &&
1465 state != SERVICE_STOP_POST &&
1466 state != SERVICE_FINAL_SIGTERM &&
e537352b 1467 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1468 service_unwatch_control_pid(s);
034c6ed7 1469 s->control_command = NULL;
a16e1123 1470 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1471 }
034c6ed7 1472
ceee3d82
LP		 1473 if (state == SERVICE_DEAD ||
1474 state == SERVICE_STOP ||
1475 state == SERVICE_STOP_SIGTERM ||
1476 state == SERVICE_STOP_SIGKILL ||
1477 state == SERVICE_STOP_POST ||
1478 state == SERVICE_FINAL_SIGTERM ||
1479 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1480 state == SERVICE_FAILED ||
ceee3d82 1481 state == SERVICE_AUTO_RESTART)
e537352b 1482 service_notify_sockets_dead(s);
ceee3d82 1483
4f2d528d
LP		 1484 if (state != SERVICE_START_PRE &&
1485 state != SERVICE_START &&
6cf6bbc2
LP		 1486 state != SERVICE_START_POST &&
1487 state != SERVICE_RUNNING &&
1488 state != SERVICE_RELOAD &&
1489 state != SERVICE_STOP &&
1490 state != SERVICE_STOP_SIGTERM &&
1491 state != SERVICE_STOP_SIGKILL &&
1492 state != SERVICE_STOP_POST &&
1493 state != SERVICE_FINAL_SIGTERM &&
1494 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1495 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1496 service_close_socket_fd(s);
6cf6bbc2
LP		 1497 service_connection_unref(s);
1498 }
4f2d528d 1499
f6023656
LP		 1500 /* For the inactive states unit_notify() will trim the cgroup,
1501 * but for exit we have to do that ourselves... */
a7556052 1502 if (state == SERVICE_EXITED && s->meta.manager->n_reloading <= 0)
f6023656
LP		 1503 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1504
e537352b 1505 if (old_state != state)
4cd1fbcc 1506 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1507
e2f3b44c
LP		 1508 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1509 s->reload_failure = false;
034c6ed7
LP		 1510}
1511
a16e1123
LP		 1512static int service_coldplug(Unit *u) {
1513 Service *s = SERVICE(u);
1514 int r;
1515
1516 assert(s);
1517 assert(s->state == SERVICE_DEAD);
1518
1519 if (s->deserialized_state != s->state) {
1520
1521 if (s->deserialized_state == SERVICE_START_PRE ||
1522 s->deserialized_state == SERVICE_START ||
1523 s->deserialized_state == SERVICE_START_POST ||
1524 s->deserialized_state == SERVICE_RELOAD ||
1525 s->deserialized_state == SERVICE_STOP ||
1526 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1527 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1528 s->deserialized_state == SERVICE_STOP_POST ||
1529 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1530 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1531 s->deserialized_state == SERVICE_AUTO_RESTART) {
1532
1533 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1534 usec_t k;
1535
1536 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1537
1538 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1539 return r;
1540 }
1541 }
a16e1123
LP		 1542
1543 if ((s->deserialized_state == SERVICE_START &&
1544 (s->type == SERVICE_FORKING ||
8c47c732 1545 s->type == SERVICE_DBUS ||
34e9ba66 1546 s->type == SERVICE_ONESHOT ||
8c47c732 1547 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1548 s->deserialized_state == SERVICE_START_POST ||
1549 s->deserialized_state == SERVICE_RUNNING ||
1550 s->deserialized_state == SERVICE_RELOAD ||
1551 s->deserialized_state == SERVICE_STOP ||
1552 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1553 s->deserialized_state == SERVICE_STOP_SIGKILL)
1554 if (s->main_pid > 0)
1555 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1556 return r;
1557
1558 if (s->deserialized_state == SERVICE_START_PRE ||
1559 s->deserialized_state == SERVICE_START ||
1560 s->deserialized_state == SERVICE_START_POST ||
1561 s->deserialized_state == SERVICE_RELOAD ||
1562 s->deserialized_state == SERVICE_STOP ||
1563 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1564 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1565 s->deserialized_state == SERVICE_STOP_POST ||
1566 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1567 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1568 if (s->control_pid > 0)
1569 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1570 return r;
1571
1572 service_set_state(s, s->deserialized_state);
1573 }
1574
1575 return 0;
1576}
1577
44d8db9e
LP		 1578static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1579 Iterator i;
1580 int r;
1581 int *rfds = NULL;
1582 unsigned rn_fds = 0;
f976f3f6 1583 Set *set, *free_set = NULL;
47be870b 1584 Socket *sock;
44d8db9e
LP		 1585
1586 assert(s);
1587 assert(fds);
1588 assert(n_fds);
1589
6cf6bbc2
LP		 1590 if (s->socket_fd >= 0)
1591 return 0;
1592
f976f3f6
LP		 1593 if (!set_isempty(s->configured_sockets))
1594 set = s->configured_sockets;
1595 else {
1596 if ((r = service_get_sockets(s, &free_set)) < 0)
1597 return r;
1598
1599 set = free_set;
1600 }
3e33402a 1601
47be870b 1602 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1603 int *cfds;
1604 unsigned cn_fds;
1605
47be870b 1606 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1607 goto fail;
1608
1609 if (!cfds)
1610 continue;
1611
1612 if (!rfds) {
1613 rfds = cfds;
1614 rn_fds = cn_fds;
1615 } else {
1616 int *t;
1617
1618 if (!(t = new(int, rn_fds+cn_fds))) {
1619 free(cfds);
1620 r = -ENOMEM;
1621 goto fail;
1622 }
1623
9c1b183c
LP		 1624 memcpy(t, rfds, rn_fds * sizeof(int));
1625 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1626 free(rfds);
1627 free(cfds);
1628
1629 rfds = t;
1630 rn_fds = rn_fds+cn_fds;
1631 }
1632 }
1633
1634 *fds = rfds;
1635 *n_fds = rn_fds;
3e33402a 1636
f976f3f6 1637 set_free(free_set);
3e33402a 1638
44d8db9e
LP		 1639 return 0;
1640
1641fail:
3e33402a 1642 set_free(set);
44d8db9e 1643 free(rfds);
3e33402a 1644
44d8db9e
LP		 1645 return r;
1646}
1647
81a2b7ce
LP		 1648static int service_spawn(
1649 Service *s,
1650 ExecCommand *c,
1651 bool timeout,
1652 bool pass_fds,
1653 bool apply_permissions,
1654 bool apply_chroot,
1e3ad081 1655 bool apply_tty_stdin,
c952c6ec 1656 bool set_notify_socket,
81a2b7ce
LP		 1657 pid_t *_pid) {
1658
034c6ed7
LP		 1659 pid_t pid;
1660 int r;
6cf6bbc2 1661 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1662 unsigned n_fds = 0, n_env = 0;
1663 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1664
1665 assert(s);
1666 assert(c);
1667 assert(_pid);
1668
6cf6bbc2
LP		 1669 if (pass_fds ||
1670 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1671 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1672 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1673
4f2d528d
LP		 1674 if (s->socket_fd >= 0) {
1675 fds = &s->socket_fd;
1676 n_fds = 1;
6cf6bbc2
LP		 1677 } else {
1678 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1679 goto fail;
1680
1681 fds = fdsbuf;
1682 }
4f2d528d 1683 }
44d8db9e 1684
e558336f 1685 if (timeout && s->timeout_usec) {
acbb0225 1686 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1687 goto fail;
1688 } else
acbb0225 1689 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1690
9e2f7c11
LP		 1691 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1692 r = -ENOMEM;
1693 goto fail;
1694 }
1695
9865f3b4 1696 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1697 r = -ENOMEM;
1698 goto fail;
1699 }
c952c6ec 1700
2105e76a 1701 if (set_notify_socket)
91b22f21 1702 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1703 r = -ENOMEM;
1704 goto fail;
1705 }
1706
2105e76a
LP		 1707 if (s->main_pid > 0)
1708 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1709 r = -ENOMEM;
1710 goto fail;
1711 }
2105e76a
LP		 1712
1713 if (!(final_env = strv_env_merge(2,
1714 s->meta.manager->environment,
1715 our_env,
1716 NULL))) {
1717 r = -ENOMEM;
1718 goto fail;
1719 }
c952c6ec 1720
9e2f7c11
LP		 1721 r = exec_spawn(c,
1722 argv,
1723 &s->exec_context,
1724 fds, n_fds,
2105e76a 1725 final_env,
9e2f7c11
LP		 1726 apply_permissions,
1727 apply_chroot,
1e3ad081 1728 apply_tty_stdin,
4cd1fbcc
LP		 1729 s->meta.manager->confirm_spawn,
1730 s->meta.cgroup_bondings,
9e2f7c11
LP		 1731 &pid);
1732
9e2f7c11 1733 if (r < 0)
034c6ed7
LP		 1734 goto fail;
1735
4f2d528d 1736
87f0e418 1737 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1738 /* FIXME: we need to do something here */
1739 goto fail;
1740
2105e76a
LP		 1741 free(fdsbuf);
1742 strv_free(argv);
1743 strv_free(our_env);
1744 strv_free(final_env);
1745
034c6ed7
LP		 1746 *_pid = pid;
1747
5cb5a6ff 1748 return 0;
034c6ed7
LP		 1749
1750fail:
2105e76a 1751 free(fdsbuf);
c952c6ec 1752 strv_free(argv);
2105e76a
LP		 1753 strv_free(our_env);
1754 strv_free(final_env);
c952c6ec 1755
034c6ed7 1756 if (timeout)
acbb0225 1757 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1758
1759 return r;
1760}
1761
80876c20
LP		 1762static int main_pid_good(Service *s) {
1763 assert(s);
1764
1765 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1766 * don't know */
1767
1768 /* If we know the pid file, then lets just check if it is
1769 * still valid */
6dfa5494
LP		 1770 if (s->main_pid_known) {
1771
1772 /* If it's an alien child let's check if it is still
1773 * alive ... */
1774 if (s->main_pid_alien)
1775 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1776
1777 /* .. otherwise assume we'll get a SIGCHLD for it,
1778 * which we really should wait for to collect exit
1779 * status and code */
80876c20 1780 return s->main_pid > 0;
6dfa5494 1781 }
80876c20
LP		 1782
1783 /* We don't know the pid */
1784 return -EAGAIN;
1785}
1786
1787static int control_pid_good(Service *s) {
1788 assert(s);
1789
1790 return s->control_pid > 0;
1791}
1792
1793static int cgroup_good(Service *s) {
1794 int r;
1795
1796 assert(s);
1797
4cd1fbcc 1798 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1799 return r;
1800
1801 return !r;
1802}
1803
034c6ed7
LP		 1804static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1805 int r;
1806 assert(s);
1807
1808 if (!success)
1809 s->failure = true;
1810
1811 if (allow_restart &&
47342320 1812 !s->forbid_restart &&
034c6ed7 1813 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1814 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1815 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1816 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1817 (s->main_exec_status.code == CLD_KILLED ||
1818 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1819
acbb0225 1820 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1821 goto fail;
1822
1823 service_set_state(s, SERVICE_AUTO_RESTART);
1824 } else
fdf20a31 1825 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1826
47342320
LP		 1827 s->forbid_restart = false;
1828
034c6ed7
LP		 1829 return;
1830
1831fail:
4cd1fbcc 1832 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1833 service_enter_dead(s, false, false);
1834}
1835
1836static void service_enter_signal(Service *s, ServiceState state, bool success);
1837
1838static void service_enter_stop_post(Service *s, bool success) {
1839 int r;
1840 assert(s);
1841
1842 if (!success)
1843 s->failure = true;
1844
5e94833f
LP		 1845 service_unwatch_control_pid(s);
1846
80876c20 1847 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1848 s->control_command_id = SERVICE_EXEC_STOP_POST;
1849
81a2b7ce
LP		 1850 if ((r = service_spawn(s,
1851 s->control_command,
1852 true,
1853 false,
1854 !s->permissions_start_only,
1855 !s->root_directory_start_only,
1e3ad081 1856 true,
c952c6ec 1857 false,
81a2b7ce 1858 &s->control_pid)) < 0)
034c6ed7
LP		 1859 goto fail;
1860
d6ea93e3 1861
80876c20
LP		 1862 service_set_state(s, SERVICE_STOP_POST);
1863 } else
1864 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1865
1866 return;
1867
1868fail:
4cd1fbcc 1869 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1870 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1871}
1872
1873static void service_enter_signal(Service *s, ServiceState state, bool success) {
1874 int r;
ca949c9d
LP		 1875 Set *pid_set = NULL;
1876 bool wait_for_exit = false;
034c6ed7
LP		 1877
1878 assert(s);
1879
1880 if (!success)
1881 s->failure = true;
1882
2e22afe9
LP		 1883 if (s->exec_context.kill_mode != KILL_NONE) {
1884 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1885
ca949c9d 1886 if (s->main_pid > 0) {
cd25cce9 1887 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1888 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1889 else
6dfa5494 1890 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1891 }
1892
ca949c9d 1893 if (s->control_pid > 0) {
cd25cce9 1894 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1895 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1896 else
1897 wait_for_exit = true;
1898 }
50159e6a 1899
ca949c9d 1900 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1901
ca949c9d
LP		 1902 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1903 r = -ENOMEM;
50159e6a 1904 goto fail;
ca949c9d
LP		 1905 }
1906
1907 /* Exclude the main/control pids from being killed via the cgroup */
1908 if (s->main_pid > 0)
1909 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1910 goto fail;
1911
1912 if (s->control_pid > 0)
1913 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1914 goto fail;
1915
430c18ed 1916 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1917 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1918 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1919 } else if (r > 0)
ca949c9d
LP		 1920 wait_for_exit = true;
1921
1922 set_free(pid_set);
da19d5c1 1923 pid_set = NULL;
50159e6a 1924 }
d6ea93e3 1925 }
034c6ed7 1926
ca949c9d 1927 if (wait_for_exit) {
e558336f
LP		 1928 if (s->timeout_usec > 0)
1929 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1930 goto fail;
d6ea93e3 1931
80876c20
LP		 1932 service_set_state(s, state);
1933 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1934 service_enter_stop_post(s, true);
1935 else
034c6ed7
LP		 1936 service_enter_dead(s, true, true);
1937
1938 return;
1939
1940fail:
4cd1fbcc 1941 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1942
80876c20 1943 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1944 service_enter_stop_post(s, false);
1945 else
1946 service_enter_dead(s, false, true);
ca949c9d
LP		 1947
1948 if (pid_set)
1949 set_free(pid_set);
034c6ed7
LP		 1950}
1951
1952static void service_enter_stop(Service *s, bool success) {
1953 int r;
5925dd3c 1954
034c6ed7
LP		 1955 assert(s);
1956
1957 if (!success)
1958 s->failure = true;
1959
5e94833f
LP		 1960 service_unwatch_control_pid(s);
1961
80876c20 1962 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1963 s->control_command_id = SERVICE_EXEC_STOP;
1964
81a2b7ce
LP		 1965 if ((r = service_spawn(s,
1966 s->control_command,
1967 true,
1968 false,
1969 !s->permissions_start_only,
1970 !s->root_directory_start_only,
c952c6ec 1971 false,
1e3ad081 1972 false,
e55224ca 1973 &s->control_pid)) < 0)
034c6ed7
LP		 1974 goto fail;
1975
80876c20
LP		 1976 service_set_state(s, SERVICE_STOP);
1977 } else
034c6ed7
LP		 1978 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1979
1980 return;
1981
1982fail:
4cd1fbcc 1983 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1984 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1985}
1986
80876c20 1987static void service_enter_running(Service *s, bool success) {
4eab639f 1988 int main_pid_ok, cgroup_ok;
80876c20
LP		 1989 assert(s);
1990
1991 if (!success)
1992 s->failure = true;
1993
4eab639f
LP		 1994 main_pid_ok = main_pid_good(s);
1995 cgroup_ok = cgroup_good(s);
1996
1997 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1998 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1999 service_set_state(s, SERVICE_RUNNING);
02ee865a 2000 else if (s->remain_after_exit)
80876c20
LP		 2001 service_set_state(s, SERVICE_EXITED);
2002 else
2003 service_enter_stop(s, true);
2004}
2005
034c6ed7
LP		 2006static void service_enter_start_post(Service *s) {
2007 int r;
2008 assert(s);
2009
5e94833f
LP		 2010 service_unwatch_control_pid(s);
2011
80876c20 2012 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2013 s->control_command_id = SERVICE_EXEC_START_POST;
2014
81a2b7ce
LP		 2015 if ((r = service_spawn(s,
2016 s->control_command,
2017 true,
2018 false,
2019 !s->permissions_start_only,
2020 !s->root_directory_start_only,
c952c6ec 2021 false,
1e3ad081 2022 false,
e55224ca 2023 &s->control_pid)) < 0)
034c6ed7
LP		 2024 goto fail;
2025
80876c20
LP		 2026 service_set_state(s, SERVICE_START_POST);
2027 } else
2028 service_enter_running(s, true);
034c6ed7
LP		 2029
2030 return;
2031
2032fail:
4cd1fbcc 2033 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2034 service_enter_stop(s, false);
2035}
2036
2037static void service_enter_start(Service *s) {
2038 pid_t pid;
2039 int r;
867b3b7d 2040 ExecCommand *c;
034c6ed7
LP		 2041
2042 assert(s);
2043
2044 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2045 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2046
80876c20
LP		 2047 if (s->type == SERVICE_FORKING)
2048 service_unwatch_control_pid(s);
2049 else
2050 service_unwatch_main_pid(s);
2051
867b3b7d
LP		 2052 if (s->type == SERVICE_FORKING) {
2053 s->control_command_id = SERVICE_EXEC_START;
2054 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2055
2056 s->main_command = NULL;
2057 } else {
2058 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2059 s->control_command = NULL;
2060
2061 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2062 }
34e9ba66 2063
81a2b7ce 2064 if ((r = service_spawn(s,
867b3b7d 2065 c,
8c47c732 2066 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2067 true,
2068 true,
2069 true,
1e3ad081 2070 true,
c952c6ec 2071 s->notify_access != NOTIFY_NONE,
81a2b7ce 2072 &pid)) < 0)
034c6ed7
LP		 2073 goto fail;
2074
2075 if (s->type == SERVICE_SIMPLE) {
2076 /* For simple services we immediately start
2077 * the START_POST binaries. */
2078
5925dd3c 2079 service_set_main_pid(s, pid);
034c6ed7
LP		 2080 service_enter_start_post(s);
2081
2082 } else if (s->type == SERVICE_FORKING) {
2083
2084 /* For forking services we wait until the start
2085 * process exited. */
2086
e55224ca 2087 s->control_pid = pid;
80876c20
LP		 2088 service_set_state(s, SERVICE_START);
2089
34e9ba66 2090 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2091 s->type == SERVICE_DBUS ||
2092 s->type == SERVICE_NOTIFY) {
7d55e835 2093
34e9ba66 2094 /* For oneshot services we wait until the start
7d55e835
LP		 2095 * process exited, too, but it is our main process. */
2096
05e343b7 2097 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2098 * but wait for the bus name to appear on the
2099 * bus. Notify services are similar. */
05e343b7 2100
5925dd3c 2101 service_set_main_pid(s, pid);
80876c20 2102 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2103 } else
2104 assert_not_reached("Unknown service type");
2105
2106 return;
2107
2108fail:
4cd1fbcc 2109 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2110 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2111}
2112
2113static void service_enter_start_pre(Service *s) {
2114 int r;
2115
2116 assert(s);
2117
5e94833f
LP		 2118 service_unwatch_control_pid(s);
2119
80876c20 2120 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2121 s->control_command_id = SERVICE_EXEC_START_PRE;
2122
81a2b7ce
LP		 2123 if ((r = service_spawn(s,
2124 s->control_command,
2125 true,
2126 false,
2127 !s->permissions_start_only,
2128 !s->root_directory_start_only,
1e3ad081 2129 true,
c952c6ec 2130 false,
e55224ca 2131 &s->control_pid)) < 0)
034c6ed7
LP		 2132 goto fail;
2133
80876c20
LP		 2134 service_set_state(s, SERVICE_START_PRE);
2135 } else
034c6ed7
LP		 2136 service_enter_start(s);
2137
2138 return;
2139
2140fail:
4cd1fbcc 2141 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2142 service_enter_dead(s, false, true);
2143}
2144
2145static void service_enter_restart(Service *s) {
2146 int r;
398ef8ba
LP		 2147 DBusError error;
2148
034c6ed7 2149 assert(s);
398ef8ba 2150 dbus_error_init(&error);
034c6ed7 2151
2edfa366
LP		 2152 if (s->meta.job) {
2153 log_info("Job pending for unit, delaying automatic restart.");
2154
2155 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2156 goto fail;
2157 }
2158
9ea9a0c8
LP		 2159 service_enter_dead(s, true, false);
2160
7b2603e6 2161 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2162 goto fail;
2163
4cd1fbcc 2164 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2165 return;
2166
2167fail:
398ef8ba 2168 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2169 service_enter_dead(s, false, false);
398ef8ba
LP		 2170
2171 dbus_error_free(&error);
034c6ed7
LP		 2172}
2173
2174static void service_enter_reload(Service *s) {
2175 int r;
2176
2177 assert(s);
2178
5e94833f
LP		 2179 service_unwatch_control_pid(s);
2180
80876c20 2181 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2182 s->control_command_id = SERVICE_EXEC_RELOAD;
2183
81a2b7ce
LP		 2184 if ((r = service_spawn(s,
2185 s->control_command,
2186 true,
2187 false,
2188 !s->permissions_start_only,
2189 !s->root_directory_start_only,
c952c6ec 2190 false,
1e3ad081 2191 false,
e55224ca 2192 &s->control_pid)) < 0)
034c6ed7
LP		 2193 goto fail;
2194
80876c20
LP		 2195 service_set_state(s, SERVICE_RELOAD);
2196 } else
2197 service_enter_running(s, true);
034c6ed7
LP		 2198
2199 return;
2200
2201fail:
4cd1fbcc 2202 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2203 s->reload_failure = true;
2204 service_enter_running(s, true);
034c6ed7
LP		 2205}
2206
34e9ba66 2207static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2208 int r;
2209
2210 assert(s);
2211 assert(s->control_command);
2212 assert(s->control_command->command_next);
2213
2214 if (!success)
2215 s->failure = true;
2216
34e9ba66 2217 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2218
34e9ba66 2219 s->control_command = s->control_command->command_next;
5e94833f
LP		 2220 service_unwatch_control_pid(s);
2221
81a2b7ce
LP		 2222 if ((r = service_spawn(s,
2223 s->control_command,
2224 true,
2225 false,
2226 !s->permissions_start_only,
2227 !s->root_directory_start_only,
5830833f
LP		 2228 s->control_command_id == SERVICE_EXEC_START_PRE ||
2229 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2230 false,
e55224ca 2231 &s->control_pid)) < 0)
034c6ed7
LP		 2232 goto fail;
2233
2234 return;
2235
2236fail:
34e9ba66 2237 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2238
80876c20
LP		 2239 if (s->state == SERVICE_START_PRE)
2240 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2241 else if (s->state == SERVICE_STOP)
2242 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2243 else if (s->state == SERVICE_STOP_POST)
2244 service_enter_dead(s, false, true);
e2f3b44c
LP		 2245 else if (s->state == SERVICE_RELOAD) {
2246 s->reload_failure = true;
2247 service_enter_running(s, true);
2248 } else
034c6ed7 2249 service_enter_stop(s, false);
5cb5a6ff
LP		 2250}
2251
34e9ba66
LP		 2252static void service_run_next_main(Service *s, bool success) {
2253 pid_t pid;
2254 int r;
2255
2256 assert(s);
867b3b7d
LP		 2257 assert(s->main_command);
2258 assert(s->main_command->command_next);
2259 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2260
2261 if (!success)
2262 s->failure = true;
2263
867b3b7d 2264 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2265 service_unwatch_main_pid(s);
2266
2267 if ((r = service_spawn(s,
867b3b7d 2268 s->main_command,
34e9ba66
LP		 2269 false,
2270 true,
2271 true,
2272 true,
2273 true,
2274 s->notify_access != NOTIFY_NONE,
2275 &pid)) < 0)
2276 goto fail;
2277
2278 service_set_main_pid(s, pid);
2279
2280 return;
2281
2282fail:
2283 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2284 service_enter_stop(s, false);
2285}
2286
87f0e418
LP		 2287static int service_start(Unit *u) {
2288 Service *s = SERVICE(u);
5cb5a6ff
LP		 2289
2290 assert(s);
2291
034c6ed7
LP		 2292 /* We cannot fulfill this request right now, try again later
2293 * please! */
2294 if (s->state == SERVICE_STOP ||
2295 s->state == SERVICE_STOP_SIGTERM ||
2296 s->state == SERVICE_STOP_SIGKILL ||
2297 s->state == SERVICE_STOP_POST ||
2298 s->state == SERVICE_FINAL_SIGTERM ||
2299 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2300 return -EAGAIN;
2301
034c6ed7
LP		 2302 /* Already on it! */
2303 if (s->state == SERVICE_START_PRE ||
2304 s->state == SERVICE_START ||
2305 s->state == SERVICE_START_POST)
2306 return 0;
2307
fdf20a31 2308 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2309
1e2e8133
LP		 2310 /* Make sure we don't enter a busy loop of some kind. */
2311 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2312 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2313 return -ECANCELED;
1e2e8133
LP		 2314 }
2315
034c6ed7
LP		 2316 s->failure = false;
2317 s->main_pid_known = false;
6dfa5494 2318 s->main_pid_alien = false;
47342320 2319 s->forbid_restart = false;
034c6ed7
LP		 2320
2321 service_enter_start_pre(s);
2322 return 0;
5cb5a6ff
LP		 2323}
2324
87f0e418
LP		 2325static int service_stop(Unit *u) {
2326 Service *s = SERVICE(u);
5cb5a6ff
LP		 2327
2328 assert(s);
2329
3f6c78dc
LP		 2330 /* This is a user request, so don't do restarts on this
2331 * shutdown. */
47342320 2332 s->forbid_restart = true;
034c6ed7 2333
e537352b
LP		 2334 /* Already on it */
2335 if (s->state == SERVICE_STOP ||
2336 s->state == SERVICE_STOP_SIGTERM ||
2337 s->state == SERVICE_STOP_SIGKILL ||
2338 s->state == SERVICE_STOP_POST ||
2339 s->state == SERVICE_FINAL_SIGTERM ||
2340 s->state == SERVICE_FINAL_SIGKILL)
2341 return 0;
2342
3f6c78dc 2343 /* Don't allow a restart */
034c6ed7
LP		 2344 if (s->state == SERVICE_AUTO_RESTART) {
2345 service_set_state(s, SERVICE_DEAD);
2346 return 0;
2347 }
2348
3f6c78dc
LP		 2349 /* If there's already something running we go directly into
2350 * kill mode. */
2351 if (s->state == SERVICE_START_PRE ||
2352 s->state == SERVICE_START ||
2353 s->state == SERVICE_START_POST ||
2354 s->state == SERVICE_RELOAD) {
2355 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2356 return 0;
2357 }
5cb5a6ff 2358
3f6c78dc
LP		 2359 assert(s->state == SERVICE_RUNNING ||
2360 s->state == SERVICE_EXITED);
3a762661 2361
034c6ed7 2362 service_enter_stop(s, true);
5cb5a6ff
LP		 2363 return 0;
2364}
2365
87f0e418
LP		 2366static int service_reload(Unit *u) {
2367 Service *s = SERVICE(u);
034c6ed7
LP		 2368
2369 assert(s);
2370
80876c20 2371 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2372
2373 service_enter_reload(s);
5cb5a6ff
LP		 2374 return 0;
2375}
2376
87f0e418
LP		 2377static bool service_can_reload(Unit *u) {
2378 Service *s = SERVICE(u);
034c6ed7
LP		 2379
2380 assert(s);
2381
2382 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2383}
2384
a16e1123
LP		 2385static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2386 Service *s = SERVICE(u);
2387
2388 assert(u);
2389 assert(f);
2390 assert(fds);
2391
2392 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2393 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2394
2395 if (s->control_pid > 0)
5925dd3c 2396 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2397
5925dd3c
LP		 2398 if (s->main_pid_known && s->main_pid > 0)
2399 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2400
2401 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2402
3a2776bc
LP		 2403 if (s->status_text)
2404 unit_serialize_item(u, f, "status-text", s->status_text);
2405
a16e1123
LP		 2406 /* There's a minor uncleanliness here: if there are multiple
2407 * commands attached here, we will start from the first one
2408 * again */
2409 if (s->control_command_id >= 0)
825636e5 2410 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2411
2412 if (s->socket_fd >= 0) {
2413 int copy;
2414
2415 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2416 return copy;
2417
2418 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2419 }
2420
ecdbca40
LP		 2421 if (s->main_exec_status.pid > 0) {
2422 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2423 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2424 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2425
799fd0fd 2426 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2427 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2428 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2429 }
2430 }
2431
a16e1123
LP		 2432 return 0;
2433}
2434
2435static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2436 Service *s = SERVICE(u);
a16e1123
LP		 2437
2438 assert(u);
2439 assert(key);
2440 assert(value);
2441 assert(fds);
2442
2443 if (streq(key, "state")) {
2444 ServiceState state;
2445
2446 if ((state = service_state_from_string(value)) < 0)
2447 log_debug("Failed to parse state value %s", value);
2448 else
2449 s->deserialized_state = state;
2450 } else if (streq(key, "failure")) {
2451 int b;
2452
2453 if ((b = parse_boolean(value)) < 0)
2454 log_debug("Failed to parse failure value %s", value);
2455 else
2456 s->failure = b || s->failure;
2457 } else if (streq(key, "control-pid")) {
5925dd3c 2458 pid_t pid;
a16e1123 2459
e364ad06 2460 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2461 log_debug("Failed to parse control-pid value %s", value);
2462 else
e55224ca 2463 s->control_pid = pid;
a16e1123 2464 } else if (streq(key, "main-pid")) {
5925dd3c 2465 pid_t pid;
a16e1123 2466
e364ad06 2467 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2468 log_debug("Failed to parse main-pid value %s", value);
2469 else
5925dd3c 2470 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2471 } else if (streq(key, "main-pid-known")) {
2472 int b;
2473
2474 if ((b = parse_boolean(value)) < 0)
2475 log_debug("Failed to parse main-pid-known value %s", value);
2476 else
2477 s->main_pid_known = b;
3a2776bc
LP		 2478 } else if (streq(key, "status-text")) {
2479 char *t;
2480
2481 if ((t = strdup(value))) {
2482 free(s->status_text);
2483 s->status_text = t;
2484 }
2485
a16e1123
LP		 2486 } else if (streq(key, "control-command")) {
2487 ServiceExecCommand id;
2488
2489 if ((id = service_exec_command_from_string(value)) < 0)
2490 log_debug("Failed to parse exec-command value %s", value);
2491 else {
2492 s->control_command_id = id;
2493 s->control_command = s->exec_command[id];
2494 }
2495 } else if (streq(key, "socket-fd")) {
2496 int fd;
2497
2498 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2499 log_debug("Failed to parse socket-fd value %s", value);
2500 else {
2501
2502 if (s->socket_fd >= 0)
2503 close_nointr_nofail(s->socket_fd);
2504 s->socket_fd = fdset_remove(fds, fd);
2505 }
ecdbca40
LP		 2506 } else if (streq(key, "main-exec-status-pid")) {
2507 pid_t pid;
2508
e364ad06 2509 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2510 log_debug("Failed to parse main-exec-status-pid value %s", value);
2511 else
2512 s->main_exec_status.pid = pid;
2513 } else if (streq(key, "main-exec-status-code")) {
2514 int i;
2515
e364ad06 2516 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2517 log_debug("Failed to parse main-exec-status-code value %s", value);
2518 else
2519 s->main_exec_status.code = i;
2520 } else if (streq(key, "main-exec-status-status")) {
2521 int i;
2522
e364ad06 2523 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2524 log_debug("Failed to parse main-exec-status-status value %s", value);
2525 else
2526 s->main_exec_status.status = i;
799fd0fd
LP		 2527 } else if (streq(key, "main-exec-status-start"))
2528 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2529 else if (streq(key, "main-exec-status-exit"))
2530 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2531 else
a16e1123
LP		 2532 log_debug("Unknown serialization key '%s'", key);
2533
2534 return 0;
2535}
2536
87f0e418
LP		 2537static UnitActiveState service_active_state(Unit *u) {
2538 assert(u);
5cb5a6ff 2539
acbb0225 2540 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2541}
2542
10a94420
LP		 2543static const char *service_sub_state_to_string(Unit *u) {
2544 assert(u);
2545
2546 return service_state_to_string(SERVICE(u)->state);
2547}
2548
701cc384
LP		 2549static bool service_check_gc(Unit *u) {
2550 Service *s = SERVICE(u);
2551
2552 assert(s);
2553
6d55002a
LP		 2554 /* Never clean up services that still have a process around,
2555 * even if the service is formally dead. */
2556 if (cgroup_good(s) > 0 ||
2557 main_pid_good(s) > 0 ||
2558 control_pid_good(s) > 0)
2559 return true;
2560
2561#ifdef HAVE_SYSV_COMPAT
2562 if (s->sysv_path)
2563 return true;
07459bb6 2564#endif
701cc384 2565
6d55002a
LP		 2566 return false;
2567}
2568
701cc384
LP		 2569static bool service_check_snapshot(Unit *u) {
2570 Service *s = SERVICE(u);
2571
2572 assert(s);
2573
2574 return !s->got_socket_fd;
2575}
2576
87f0e418
LP		 2577static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2578 Service *s = SERVICE(u);
034c6ed7 2579 bool success;
5cb5a6ff
LP		 2580
2581 assert(s);
034c6ed7
LP		 2582 assert(pid >= 0);
2583
f21781d5 2584 if (!s->meta.fragment_path)
d06dacd0
LP		 2585 success = is_clean_exit_lsb(code, status);
2586 else
2587 success = is_clean_exit(code, status);
034c6ed7
LP		 2588
2589 if (s->main_pid == pid) {
2590
034c6ed7 2591 s->main_pid = 0;
6ea832a2 2592 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2593
867b3b7d
LP		 2594 /* If this is not a forking service than the main
2595 * process got started and hence we copy the exit
2596 * status so that it is recorded both as main and as
2597 * control process exit status */
2598 if (s->main_command) {
2599 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2600
867b3b7d 2601 if (s->main_command->ignore)
b708e7ce 2602 success = true;
034c6ed7
LP		 2603 }
2604
92abbefb
LP		 2605 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2606 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2607 s->failure = s->failure || !success;
034c6ed7 2608
867b3b7d
LP		 2609 if (s->main_command &&
2610 s->main_command->command_next &&
34e9ba66 2611 success) {
034c6ed7 2612
34e9ba66
LP		 2613 /* There is another command to *
2614 * execute, so let's do that. */
034c6ed7 2615
34e9ba66
LP		 2616 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2617 service_run_next_main(s, success);
034c6ed7 2618
34e9ba66
LP		 2619 } else {
2620
2621 /* The service exited, so the service is officially
2622 * gone. */
867b3b7d 2623 s->main_command = NULL;
34e9ba66
LP		 2624
2625 switch (s->state) {
2626
2627 case SERVICE_START_POST:
2628 case SERVICE_RELOAD:
2629 case SERVICE_STOP:
2630 /* Need to wait until the operation is
2631 * done */
c4653a4d 2632 break;
7d55e835 2633
34e9ba66
LP		 2634 case SERVICE_START:
2635 if (s->type == SERVICE_ONESHOT) {
2636 /* This was our main goal, so let's go on */
2637 if (success)
2638 service_enter_start_post(s);
2639 else
2640 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2641 break;
2642 } else {
2643 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2644
34e9ba66
LP		 2645 /* Fall through */
2646 }
034c6ed7 2647
34e9ba66
LP		 2648 case SERVICE_RUNNING:
2649 service_enter_running(s, success);
2650 break;
034c6ed7 2651
34e9ba66
LP		 2652 case SERVICE_STOP_SIGTERM:
2653 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2654
34e9ba66
LP		 2655 if (!control_pid_good(s))
2656 service_enter_stop_post(s, success);
5cb5a6ff 2657
34e9ba66
LP		 2658 /* If there is still a control process, wait for that first */
2659 break;
2660
2661 default:
2662 assert_not_reached("Uh, main process died at wrong time.");
2663 }
034c6ed7 2664 }
5cb5a6ff 2665
034c6ed7 2666 } else if (s->control_pid == pid) {
034c6ed7 2667
34e9ba66
LP		 2668 s->control_pid = 0;
2669
b708e7ce 2670 if (s->control_command) {
6ea832a2 2671 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2672
b708e7ce
LP		 2673 if (s->control_command->ignore)
2674 success = true;
2675 }
2676
34e9ba66 2677 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2678 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2679 s->failure = s->failure || !success;
034c6ed7 2680
34e9ba66
LP		 2681 if (s->control_command &&
2682 s->control_command->command_next &&
2683 success) {
034c6ed7
LP		 2684
2685 /* There is another command to *
2686 * execute, so let's do that. */
2687
34e9ba66
LP		 2688 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2689 service_run_next_control(s, success);
034c6ed7 2690
80876c20 2691 } else {
034c6ed7
LP		 2692 /* No further commands for this step, so let's
2693 * figure out what to do next */
2694
a16e1123
LP		 2695 s->control_command = NULL;
2696 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2697
9e2f7c11 2698 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2699
034c6ed7
LP		 2700 switch (s->state) {
2701
2702 case SERVICE_START_PRE:
2703 if (success)
2704 service_enter_start(s);
2705 else
80876c20 2706 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2707 break;
2708
2709 case SERVICE_START:
2710 assert(s->type == SERVICE_FORKING);
2711
2712 /* Let's try to load the pid
2713 * file here if we can. We
2714 * ignore the return value,
2715 * since the PID file might
2716 * actually be created by a
2717 * START_POST script */
2718
2719 if (success) {
4fbf50b3
LP		 2720 service_load_pid_file(s);
2721 service_search_main_pid(s);
034c6ed7
LP		 2722
2723 service_enter_start_post(s);
2724 } else
80876c20 2725 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2726
2727 break;
2728
2729 case SERVICE_START_POST:
6dfa5494
LP		 2730 if (success) {
2731 service_load_pid_file(s);
2732 service_search_main_pid(s);
034c6ed7
LP		 2733 }
2734
3185a36b
LP		 2735 s->reload_failure = !success;
2736 service_enter_running(s, true);
2737 break;
034c6ed7
LP		 2738
2739 case SERVICE_RELOAD:
3185a36b
LP		 2740 if (success) {
2741 service_load_pid_file(s);
2742 service_search_main_pid(s);
2743 }
2744
e2f3b44c
LP		 2745 s->reload_failure = !success;
2746 service_enter_running(s, true);
034c6ed7
LP		 2747 break;
2748
2749 case SERVICE_STOP:
80876c20 2750 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2751 break;
2752
2753 case SERVICE_STOP_SIGTERM:
2754 case SERVICE_STOP_SIGKILL:
2755 if (main_pid_good(s) <= 0)
2756 service_enter_stop_post(s, success);
2757
2758 /* If there is still a service
2759 * process around, wait until
2760 * that one quit, too */
2761 break;
2762
2763 case SERVICE_STOP_POST:
2764 case SERVICE_FINAL_SIGTERM:
2765 case SERVICE_FINAL_SIGKILL:
2766 service_enter_dead(s, success, true);
2767 break;
2768
2769 default:
2770 assert_not_reached("Uh, control process died at wrong time.");
2771 }
2772 }
8c47c732 2773 }
c4e2ceae
LP		 2774
2775 /* Notify clients about changed exit status */
2776 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2777}
2778
acbb0225 2779static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2780 Service *s = SERVICE(u);
034c6ed7
LP		 2781
2782 assert(s);
2783 assert(elapsed == 1);
2784
acbb0225 2785 assert(w == &s->timer_watch);
034c6ed7
LP		 2786
2787 switch (s->state) {
2788
2789 case SERVICE_START_PRE:
2790 case SERVICE_START:
9e2f7c11 2791 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2792 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2793 break;
2794
034c6ed7 2795 case SERVICE_START_POST:
9e2f7c11 2796 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2797 service_enter_stop(s, false);
2798 break;
2799
e2f3b44c
LP		 2800 case SERVICE_RELOAD:
2801 log_warning("%s operation timed out. Stopping.", u->meta.id);
2802 s->reload_failure = true;
2803 service_enter_running(s, true);
2804 break;
2805
034c6ed7 2806 case SERVICE_STOP:
9e2f7c11 2807 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2808 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2809 break;
2810
2811 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2812 if (s->exec_context.send_sigkill) {
2813 log_warning("%s stopping timed out. Killing.", u->meta.id);
2814 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2815 } else {
2816 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2817 service_enter_stop_post(s, false);
2818 }
2819
034c6ed7
LP		 2820 break;
2821
2822 case SERVICE_STOP_SIGKILL:
35b8ca3a 2823 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 2824 * Must be something we cannot kill, so let's just be
2825 * weirded out and continue */
2826
9e2f7c11 2827 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2828 service_enter_stop_post(s, false);
2829 break;
2830
2831 case SERVICE_STOP_POST:
9e2f7c11 2832 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2833 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2834 break;
2835
2836 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2837 if (s->exec_context.send_sigkill) {
2838 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2839 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2840 } else {
2841 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2842 service_enter_dead(s, false, true);
2843 }
2844
034c6ed7
LP		 2845 break;
2846
2847 case SERVICE_FINAL_SIGKILL:
fdf20a31 2848 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2849 service_enter_dead(s, false, true);
2850 break;
2851
2852 case SERVICE_AUTO_RESTART:
54165a39 2853 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2854 service_enter_restart(s);
2855 break;
2856
2857 default:
2858 assert_not_reached("Timeout at wrong time.");
2859 }
5cb5a6ff
LP		 2860}
2861
8e274523
LP		 2862static void service_cgroup_notify_event(Unit *u) {
2863 Service *s = SERVICE(u);
2864
2865 assert(u);
2866
9e2f7c11 2867 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2868
2869 switch (s->state) {
2870
2871 /* Waiting for SIGCHLD is usually more interesting,
2872 * because it includes return codes/signals. Which is
2873 * why we ignore the cgroup events for most cases,
2874 * except when we don't know pid which to expect the
2875 * SIGCHLD for. */
2876
2877 case SERVICE_RUNNING:
80876c20 2878 service_enter_running(s, true);
8e274523
LP		 2879 break;
2880
28708d8a
LP		 2881 case SERVICE_STOP_SIGTERM:
2882 case SERVICE_STOP_SIGKILL:
6dfa5494 2883
28708d8a
LP		 2884 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2885 service_enter_stop_post(s, true);
2886
2887 break;
2888
7f97f0fe
LP		 2889 case SERVICE_FINAL_SIGTERM:
2890 case SERVICE_FINAL_SIGKILL:
2891 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2892 service_enter_dead(s, true, true);
2893
2894 break;
2895
8e274523
LP		 2896 default:
2897 ;
2898 }
2899}
2900
c952c6ec 2901static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2902 Service *s = SERVICE(u);
2903 const char *e;
2904
2905 assert(u);
2906
c952c6ec
LP		 2907 if (s->notify_access == NOTIFY_NONE) {
2908 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2909 u->meta.id, (unsigned long) pid);
2910 return;
2911 }
2912
2913 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2914 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2915 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2916 return;
2917 }
2918
8c47c732
LP		 2919 log_debug("%s: Got message", u->meta.id);
2920
2921 /* Interpret MAINPID= */
2922 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2923 (s->state == SERVICE_START ||
2924 s->state == SERVICE_START_POST ||
2925 s->state == SERVICE_RUNNING ||
2926 s->state == SERVICE_RELOAD)) {
8c47c732 2927
5925dd3c 2928 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2929 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2930 else {
2931 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2932 service_set_main_pid(s, pid);
8c47c732
LP		 2933 }
2934 }
2935
2936 /* Interpret READY= */
2937 if (s->type == SERVICE_NOTIFY &&
2938 s->state == SERVICE_START &&
2939 strv_find(tags, "READY=1")) {
2940 log_debug("%s: got READY=1", u->meta.id);
2941
2942 service_enter_start_post(s);
2943 }
2944
2945 /* Interpret STATUS= */
2946 if ((e = strv_find_prefix(tags, "STATUS="))) {
2947 char *t;
2948
3a2776bc
LP		 2949 if (e[7]) {
2950 if (!(t = strdup(e+7))) {
2951 log_error("Failed to allocate string.");
2952 return;
2953 }
2954
2955 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2956
3a2776bc
LP		 2957 free(s->status_text);
2958 s->status_text = t;
2959 } else {
2960 free(s->status_text);
2961 s->status_text = NULL;
2962 }
8c47c732 2963
8c47c732 2964 }
c4e2ceae
LP		 2965
2966 /* Notify clients about changed status or main pid */
2967 unit_add_to_dbus_queue(u);
8c47c732
LP		 2968}
2969
07459bb6 2970#ifdef HAVE_SYSV_COMPAT
2c4104f0 2971static int service_enumerate(Manager *m) {
2c4104f0
LP		 2972 char **p;
2973 unsigned i;
2974 DIR *d = NULL;
2975 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2976 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2977 Unit *service;
2978 Iterator j;
2c4104f0
LP		 2979 int r;
2980
2981 assert(m);
2982
b1bc08e5
LP		 2983 if (m->running_as != MANAGER_SYSTEM)
2984 return 0;
2985
c68364b7
LP		 2986 zero(runlevel_services);
2987
84e3543e 2988 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2989 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2990 struct dirent *de;
2991
2992 free(path);
70132bd0
LP		 2993 path = join(*p, "/", rcnd_table[i].path, NULL);
2994 if (!path) {
2c4104f0
LP		 2995 r = -ENOMEM;
2996 goto finish;
2997 }
2998
2999 if (d)
3000 closedir(d);
3001
3002 if (!(d = opendir(path))) {
3003 if (errno != ENOENT)
3004 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3005
3006 continue;
3007 }
3008
3009 while ((de = readdir(d))) {
db06e3b6 3010 int a, b;
2c4104f0
LP		 3011
3012 if (ignore_file(de->d_name))
3013 continue;
3014
3015 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3016 continue;
3017
3018 if (strlen(de->d_name) < 4)
3019 continue;
3020
db06e3b6
LP		 3021 a = undecchar(de->d_name[1]);
3022 b = undecchar(de->d_name[2]);
3023
3024 if (a < 0 || b < 0)
3025 continue;
3026
2c4104f0 3027 free(fpath);
44d91056
LP		 3028 fpath = join(path, "/", de->d_name, NULL);
3029 if (!path) {
2c4104f0
LP		 3030 r = -ENOMEM;
3031 goto finish;
3032 }
3033
3034 if (access(fpath, X_OK) < 0) {
3035
3036 if (errno != ENOENT)
3037 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3038
3039 continue;
3040 }
3041
3042 free(name);
b7ccee3c 3043 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3044 r = -ENOMEM;
3045 goto finish;
3046 }
3047
398ef8ba 3048 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3049 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3050 continue;
3051 }
2c4104f0 3052
c68364b7
LP		 3053 if (de->d_name[0] == 'S') {
3054
f73d93a4 3055 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3056 SERVICE(service)->sysv_start_priority_from_rcnd =
3057 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3058
c68364b7 3059 SERVICE(service)->sysv_enabled = true;
f73d93a4 3060 }
db06e3b6 3061
c68364b7
LP		 3062 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3063 goto finish;
2c4104f0 3064
c68364b7 3065 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3066 goto finish;
23a177ef 3067
fc5df99e
LP		 3068 } else if (de->d_name[0] == 'K' &&
3069 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3070 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3071
c68364b7
LP		 3072 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3073 goto finish;
3074
3075 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3076 goto finish;
3077 }
3078 }
3079 }
3080
c68364b7
LP		 3081 /* Now we loaded all stubs and are aware of the lowest
3082 start-up priority for all services, not let's actually load
3083 the services, this will also tell us which services are
3084 actually native now */
3085 manager_dispatch_load_queue(m);
3086
3087 /* If this is a native service, rely on native ways to pull in
3088 * a service, don't pull it in via sysv rcN.d links. */
3089 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3090 SET_FOREACH(service, runlevel_services[i], j) {
3091 service = unit_follow_merge(service);
3092
3093 if (service->meta.fragment_path)
3094 continue;
3095
3096 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3097 goto finish;
3098 }
3099
3100 /* We honour K links only for halt/reboot. For the normal
3101 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3102 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3103 * between the runlevels 0 and 6 and just add them to the
3104 * special shutdown target. On SUSE the boot.d/ runlevel is
3105 * also used for shutdown, so we add links for that too to the
3106 * shutdown target.*/
3107 SET_FOREACH(service, shutdown_services, j) {
3108 service = unit_follow_merge(service);
3109
3110 if (service->meta.fragment_path)
3111 continue;
3112
ead8e478 3113 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3114 goto finish;
3115 }
3116
2c4104f0
LP		 3117 r = 0;
3118
3119finish:
3120 free(path);
3121 free(fpath);
3122 free(name);
fbe9f3a9 3123
c68364b7
LP		 3124 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3125 set_free(runlevel_services[i]);
3126 set_free(shutdown_services);
3127
fbe9f3a9
LP		 3128 if (d)
3129 closedir(d);
2c4104f0
LP		 3130
3131 return r;
3132}
07459bb6 3133#endif
2c4104f0 3134
05e343b7
LP		 3135static void service_bus_name_owner_change(
3136 Unit *u,
3137 const char *name,
3138 const char *old_owner,
3139 const char *new_owner) {
3140
3141 Service *s = SERVICE(u);
3142
3143 assert(s);
3144 assert(name);
3145
3146 assert(streq(s->bus_name, name));
3147 assert(old_owner || new_owner);
3148
3149 if (old_owner && new_owner)
3150 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3151 else if (old_owner)
3152 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3153 else
3154 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3155
3156 s->bus_name_good = !!new_owner;
3157
3158 if (s->type == SERVICE_DBUS) {
3159
3160 /* service_enter_running() will figure out what to
3161 * do */
3162 if (s->state == SERVICE_RUNNING)
3163 service_enter_running(s, true);
3164 else if (s->state == SERVICE_START && new_owner)
3165 service_enter_start_post(s);
3166
3167 } else if (new_owner &&
3168 s->main_pid <= 0 &&
3169 (s->state == SERVICE_START ||
3170 s->state == SERVICE_START_POST ||
3171 s->state == SERVICE_RUNNING ||
3172 s->state == SERVICE_RELOAD)) {
3173
3174 /* Try to acquire PID from bus service */
3175 log_debug("Trying to acquire PID from D-Bus name...");
3176
3177 bus_query_pid(u->meta.manager, name);
3178 }
3179}
3180
3181static void service_bus_query_pid_done(
3182 Unit *u,
3183 const char *name,
3184 pid_t pid) {
3185
3186 Service *s = SERVICE(u);
3187
3188 assert(s);
3189 assert(name);
3190
3191 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3192
3193 if (s->main_pid <= 0 &&
3194 (s->state == SERVICE_START ||
3195 s->state == SERVICE_START_POST ||
3196 s->state == SERVICE_RUNNING ||
3197 s->state == SERVICE_RELOAD))
5925dd3c 3198 service_set_main_pid(s, pid);
05e343b7
LP		 3199}
3200
6cf6bbc2 3201int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3202 assert(s);
3203 assert(fd >= 0);
3204
3205 /* This is called by the socket code when instantiating a new
3206 * service for a stream socket and the socket needs to be
3207 * configured. */
3208
4cd1fbcc 3209 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3210 return -EINVAL;
3211
3212 if (s->socket_fd >= 0)
3213 return -EBUSY;
3214
3215 if (s->state != SERVICE_DEAD)
3216 return -EAGAIN;
3217
3218 s->socket_fd = fd;
701cc384 3219 s->got_socket_fd = true;
f976f3f6 3220 s->accept_socket = sock;
6cf6bbc2 3221
4f2d528d
LP		 3222 return 0;
3223}
3224
fdf20a31 3225static void service_reset_failed(Unit *u) {
5632e374
LP		 3226 Service *s = SERVICE(u);
3227
3228 assert(s);
3229
fdf20a31 3230 if (s->state == SERVICE_FAILED)
5632e374
LP		 3231 service_set_state(s, SERVICE_DEAD);
3232
3233 s->failure = false;
3234}
3235
5f4b19f4
LP		 3236static bool service_need_daemon_reload(Unit *u) {
3237 Service *s = SERVICE(u);
3238
3239 assert(s);
3240
3241#ifdef HAVE_SYSV_COMPAT
3242 if (s->sysv_path) {
3243 struct stat st;
3244
3245 zero(st);
3246 if (stat(s->sysv_path, &st) < 0)
3247 /* What, cannot access this anymore? */
3248 return true;
3249
3250 if (s->sysv_mtime > 0 &&
3251 timespec_load(&st.st_mtim) != s->sysv_mtime)
3252 return true;
3253 }
3254#endif
3255
3256 return false;
3257}
3258
8a0867d6
LP		 3259static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3260 Service *s = SERVICE(u);
3261 int r = 0;
3262 Set *pid_set = NULL;
3263
3264 assert(s);
3265
3266 if (s->main_pid <= 0 && who == KILL_MAIN) {
3267 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3268 return -ESRCH;
8a0867d6
LP		 3269 }
3270
3271 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3272 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3273 return -ESRCH;
8a0867d6
LP		 3274 }
3275
3611581e
LP		 3276 if (who == KILL_CONTROL || who == KILL_ALL)
3277 if (s->control_pid > 0)
3278 if (kill(s->control_pid, signo) < 0)
3279 r = -errno;
8a0867d6 3280
3611581e
LP		 3281 if (who == KILL_MAIN || who == KILL_ALL)
3282 if (s->main_pid > 0)
3283 if (kill(s->main_pid, signo) < 0)
3284 r = -errno;
8a0867d6 3285
3611581e 3286 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
8a0867d6
LP		 3287 int q;
3288
3289 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3290 return -ENOMEM;
3291
3292 /* Exclude the control/main pid from being killed via the cgroup */
3293 if (s->control_pid > 0)
3294 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3295 r = q;
3296 goto finish;
3297 }
3298
3299 if (s->main_pid > 0)
3300 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3301 r = q;
3302 goto finish;
3303 }
3304
430c18ed 3305 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
3611581e 3306 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
8a0867d6
LP		 3307 r = q;
3308 }
3309
3310finish:
3311 if (pid_set)
3312 set_free(pid_set);
3313
3314 return r;
3315}
3316
94f04347
LP		 3317static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3318 [SERVICE_DEAD] = "dead",
3319 [SERVICE_START_PRE] = "start-pre",
3320 [SERVICE_START] = "start",
3321 [SERVICE_START_POST] = "start-post",
3322 [SERVICE_RUNNING] = "running",
80876c20 3323 [SERVICE_EXITED] = "exited",
94f04347
LP		 3324 [SERVICE_RELOAD] = "reload",
3325 [SERVICE_STOP] = "stop",
3326 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3327 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3328 [SERVICE_STOP_POST] = "stop-post",
3329 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3330 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3331 [SERVICE_FAILED] = "failed",
94f04347
LP		 3332 [SERVICE_AUTO_RESTART] = "auto-restart",
3333};
3334
3335DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3336
3337static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3338 [SERVICE_RESTART_NO] = "no",
3339 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3340 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3341 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3342 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3343};
3344
3345DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3346
3347static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3348 [SERVICE_SIMPLE] = "simple",
0d624a78 3349 [SERVICE_FORKING] = "forking",
34e9ba66 3350 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3351 [SERVICE_DBUS] = "dbus",
3352 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3353};
3354
3355DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3356
e537352b 3357static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3358 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3359 [SERVICE_EXEC_START] = "ExecStart",
3360 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3361 [SERVICE_EXEC_RELOAD] = "ExecReload",
3362 [SERVICE_EXEC_STOP] = "ExecStop",
3363 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3364};
3365
3366DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3367
c952c6ec
LP		 3368static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3369 [NOTIFY_NONE] = "none",
3370 [NOTIFY_MAIN] = "main",
3371 [NOTIFY_ALL] = "all"
3372};
3373
3374DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3375
87f0e418 3376const UnitVTable service_vtable = {
5cb5a6ff 3377 .suffix = ".service",
f975e971
LP		 3378 .sections =
3379 "Unit\0"
3380 "Service\0"
3381 "Install\0",
9e58ff9c 3382 .show_status = true,
5cb5a6ff 3383
034c6ed7
LP		 3384 .init = service_init,
3385 .done = service_done,
a16e1123
LP		 3386 .load = service_load,
3387
3388 .coldplug = service_coldplug,
034c6ed7 3389
5cb5a6ff
LP		 3390 .dump = service_dump,
3391
3392 .start = service_start,
3393 .stop = service_stop,
3394 .reload = service_reload,
3395
034c6ed7
LP		 3396 .can_reload = service_can_reload,
3397
8a0867d6
LP		 3398 .kill = service_kill,
3399
a16e1123
LP		 3400 .serialize = service_serialize,
3401 .deserialize_item = service_deserialize_item,
3402
5cb5a6ff 3403 .active_state = service_active_state,
10a94420 3404 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3405
701cc384
LP		 3406 .check_gc = service_check_gc,
3407 .check_snapshot = service_check_snapshot,
3408
034c6ed7
LP		 3409 .sigchld_event = service_sigchld_event,
3410 .timer_event = service_timer_event,
2c4104f0 3411
fdf20a31 3412 .reset_failed = service_reset_failed,
5632e374 3413
5f4b19f4
LP		 3414 .need_daemon_reload = service_need_daemon_reload,
3415
8e274523 3416 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3417 .notify_message = service_notify_message,
8e274523 3418
05e343b7
LP		 3419 .bus_name_owner_change = service_bus_name_owner_change,
3420 .bus_query_pid_done = service_bus_query_pid_done,
3421
c4e2ceae 3422 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3423 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3424 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3425
07459bb6 3426#ifdef HAVE_SYSV_COMPAT
2c4104f0 3427 .enumerate = service_enumerate
07459bb6 3428#endif
5cb5a6ff 3429};
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