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nspawn: better use setresuid() instead of setreuid()
[thirdparty/systemd.git] / src / service.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
9a57c629 37#include "exit-status.h"
f6a6225e
LP		 38#include "def.h"
39#include "util.h"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
f34277d9 42
f6a6225e 43#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
f34277d9 44
09cd1ab1
LP		 45typedef enum RunlevelType {
46 RUNLEVEL_UP,
47 RUNLEVEL_DOWN,
fc5df99e 48 RUNLEVEL_SYSINIT
09cd1ab1
LP		 49} RunlevelType;
50
51static const struct {
52 const char *path;
53 const char *target;
54 const RunlevelType type;
55} rcnd_table[] = {
9d25f5ed 56 /* Standard SysV runlevels for start-up */
514f4ef5 57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 62
d4054675 63#ifdef TARGET_SUSE
cfe243e3 64 /* SUSE style boot.d */
fc5df99e 65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 66#endif
fbe9f3a9 67
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)
638 asprintf(&d, "%s %s", chkconfig_description, j);
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)
808 asprintf(&d, "%s %s", long_description, t);
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;
02ee865a 846 s->remain_after_exit = true;
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
924 if (asprintf(&path, "%s/%s", *p, name) < 0)
925 return -ENOMEM;
926
927 assert(endswith(path, ".service"));
928 path[strlen(path)-8] = 0;
929
e537352b 930 r = service_load_sysv_path(s, path);
fbe9f3a9 931
1bd8b818 932#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
4cd1fbcc 933 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 934 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 935 strcat(path, ".sh");
936 r = service_load_sysv_path(s, path);
937 }
e1992852 938#endif
2c4104f0
LP		 939 free(path);
940
e1992852 941#ifdef TARGET_SUSE
4cd1fbcc 942 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 943 /* Try SUSE style boot.* init scripts */
fbe9f3a9
LP		 944
945 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
946 return -ENOMEM;
947
e1992852 948 /* Drop .service suffix */
fbe9f3a9
LP		 949 path[strlen(path)-8] = 0;
950 r = service_load_sysv_path(s, path);
951 free(path);
952 }
e1992852 953#endif
fbe9f3a9 954
e1992852 955#ifdef TARGET_FRUGALWARE
65530632 956 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 957 /* Try Frugalware style rc.* init scripts */
65530632
MV		 958
959 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
960 return -ENOMEM;
961
e1992852 962 /* Drop .service suffix */
65530632
MV		 963 path[strlen(path)-8] = 0;
964 r = service_load_sysv_path(s, path);
965 free(path);
966 }
e1992852 967#endif
65530632 968
23a177ef 969 if (r < 0)
2c4104f0 970 return r;
23a177ef 971
4cd1fbcc 972 if ((s->meta.load_state != UNIT_STUB))
23a177ef 973 break;
2c4104f0
LP		 974 }
975
976 return 0;
977}
978
e537352b 979static int service_load_sysv(Service *s) {
2c4104f0
LP		 980 const char *t;
981 Iterator i;
982 int r;
983
5cb5a6ff
LP		 984 assert(s);
985
986 /* Load service data from SysV init scripts, preferably with
987 * LSB headers ... */
988
4cd1fbcc 989 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 990 return 0;
991
4cd1fbcc 992 if ((t = s->meta.id))
e537352b 993 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 994 return r;
995
4cd1fbcc
LP		 996 if (s->meta.load_state == UNIT_STUB)
997 SET_FOREACH(t, s->meta.names, i) {
998 if (t == s->meta.id)
e537352b
LP		 999 continue;
1000
e364ad06 1001 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 1002 return r;
1003
4cd1fbcc 1004 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 1005 break;
1006 }
2c4104f0
LP		 1007
1008 return 0;
5cb5a6ff 1009}
07459bb6 1010#endif
5cb5a6ff 1011
9fff8a1f
LP		 1012static int fsck_fix_order(Service *s) {
1013 Meta *other;
1014 int r;
1015
1016 assert(s);
1017
1018 if (s->fsck_passno <= 0)
1019 return 0;
1020
1021 /* For each pair of services where both have an fsck priority
1022 * we order things based on it. */
1023
ab5c3e3f 1024 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1025 Service *t;
1026 UnitDependency d;
1027
1028 t = (Service*) other;
1029
1030 if (s == t)
1031 continue;
1032
1033 if (t->meta.load_state != UNIT_LOADED)
1034 continue;
1035
1036 if (t->fsck_passno <= 0)
1037 continue;
1038
1039 if (t->fsck_passno < s->fsck_passno)
1040 d = UNIT_AFTER;
1041 else if (t->fsck_passno > s->fsck_passno)
1042 d = UNIT_BEFORE;
1043 else
1044 continue;
1045
da19d5c1 1046 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1047 return r;
1048 }
1049
1050 return 0;
1051}
1052
243b1432
LP		 1053static int service_verify(Service *s) {
1054 assert(s);
1055
4cd1fbcc 1056 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1057 return 0;
1058
1059 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1060 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1061 return -EINVAL;
1062 }
1063
34e9ba66
LP		 1064 if (s->type != SERVICE_ONESHOT &&
1065 s->exec_command[SERVICE_EXEC_START]->command_next) {
1066 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1067 return -EINVAL;
1068 }
1069
c06b7a15
LP		 1070 if (s->type == SERVICE_ONESHOT &&
1071 s->exec_command[SERVICE_EXEC_RELOAD]) {
1072 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1073 return -EINVAL;
1074 }
1075
05e343b7 1076 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1077 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1078 return -EINVAL;
1079 }
1080
2e22afe9 1081 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1082 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1083 return -EINVAL;
1084 }
1085
243b1432
LP		 1086 return 0;
1087}
1088
a40eb732
LP		 1089static int service_add_default_dependencies(Service *s) {
1090 int r;
1091
1092 assert(s);
1093
1094 /* Add a number of automatic dependencies useful for the
1095 * majority of services. */
1096
1097 /* First, pull in base system */
1098 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1099
1100 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1101 return r;
1102
af2d49f7 1103 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1104
1105 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1106 return r;
1107 }
1108
1109 /* Second, activate normal shutdown */
ead8e478 1110 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1111}
1112
e537352b
LP		 1113static int service_load(Unit *u) {
1114 int r;
1115 Service *s = SERVICE(u);
1116
1117 assert(s);
1e2e8133 1118
5cb5a6ff 1119 /* Load a .service file */
e537352b 1120 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1121 return r;
1122
07459bb6 1123#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1124 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1125 if (u->meta.load_state == UNIT_STUB)
1126 if ((r = service_load_sysv(s)) < 0)
23a177ef 1127 return r;
07459bb6 1128#endif
d46de8a1 1129
23a177ef 1130 /* Still nothing found? Then let's give up */
e537352b 1131 if (u->meta.load_state == UNIT_STUB)
23a177ef 1132 return -ENOENT;
034c6ed7 1133
23a177ef
LP		 1134 /* We were able to load something, then let's add in the
1135 * dropin directories. */
1136 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1137 return r;
23a177ef
LP		 1138
1139 /* This is a new unit? Then let's add in some extras */
e537352b 1140 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1141 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1142 return r;
1143
d686d8a9 1144 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1145 return r;
1146
07459bb6 1147#ifdef HAVE_SYSV_COMPAT
56d748b4 1148 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1149 return r;
07459bb6 1150#endif
05e343b7 1151
9fff8a1f
LP		 1152 if ((r = fsck_fix_order(s)) < 0)
1153 return r;
1154
ee0dd802 1155 if (s->bus_name)
05e343b7 1156 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1157 return r;
c952c6ec
LP		 1158
1159 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1160 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1161
1162 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1163 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1164 return r;
1165
1166 if (s->meta.default_dependencies)
1167 if ((r = service_add_default_dependencies(s)) < 0)
1168 return r;
8e274523
LP		 1169 }
1170
243b1432 1171 return service_verify(s);
034c6ed7
LP		 1172}
1173
87f0e418 1174static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1175
5cb5a6ff 1176 ServiceExecCommand c;
87f0e418 1177 Service *s = SERVICE(u);
47be870b
LP		 1178 const char *prefix2;
1179 char *p2;
5cb5a6ff
LP		 1180
1181 assert(s);
1182
47be870b
LP		 1183 p2 = strappend(prefix, "\t");
1184 prefix2 = p2 ? p2 : prefix;
44d8db9e 1185
5cb5a6ff 1186 fprintf(f,
81a2b7ce
LP		 1187 "%sService State: %s\n"
1188 "%sPermissionsStartOnly: %s\n"
8e274523 1189 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1190 "%sRemainAfterExit: %s\n"
3185a36b 1191 "%sGuessMainPID: %s\n"
c952c6ec 1192 "%sType: %s\n"
2cf3143a 1193 "%sRestart: %s\n"
c952c6ec 1194 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1195 prefix, service_state_to_string(s->state),
1196 prefix, yes_no(s->permissions_start_only),
8e274523 1197 prefix, yes_no(s->root_directory_start_only),
02ee865a 1198 prefix, yes_no(s->remain_after_exit),
3185a36b 1199 prefix, yes_no(s->guess_main_pid),
c952c6ec 1200 prefix, service_type_to_string(s->type),
2cf3143a 1201 prefix, service_restart_to_string(s->restart),
c952c6ec 1202 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1203
70123e68
LP		 1204 if (s->control_pid > 0)
1205 fprintf(f,
bb00e604
LP		 1206 "%sControl PID: %lu\n",
1207 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1208
1209 if (s->main_pid > 0)
1210 fprintf(f,
6dfa5494
LP		 1211 "%sMain PID: %lu\n"
1212 "%sMain PID Known: %s\n"
1213 "%sMain PID Alien: %s\n",
1214 prefix, (unsigned long) s->main_pid,
1215 prefix, yes_no(s->main_pid_known),
1216 prefix, yes_no(s->main_pid_alien));
70123e68 1217
034c6ed7
LP		 1218 if (s->pid_file)
1219 fprintf(f,
1220 "%sPIDFile: %s\n",
1221 prefix, s->pid_file);
1222
05e343b7
LP		 1223 if (s->bus_name)
1224 fprintf(f,
1225 "%sBusName: %s\n"
1226 "%sBus Name Good: %s\n",
1227 prefix, s->bus_name,
1228 prefix, yes_no(s->bus_name_good));
1229
5cb5a6ff
LP		 1230 exec_context_dump(&s->exec_context, f, prefix);
1231
e537352b 1232 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1233
44d8db9e
LP		 1234 if (!s->exec_command[c])
1235 continue;
1236
40d50879 1237 fprintf(f, "%s-> %s:\n",
94f04347 1238 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1239
1240 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1241 }
44d8db9e 1242
07459bb6 1243#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1244 if (s->sysv_path)
1245 fprintf(f,
23a177ef 1246 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1247 "%sSysV Init Script has LSB Header: %s\n"
1248 "%sSysVEnabled: %s\n",
23a177ef 1249 prefix, s->sysv_path,
9fff8a1f
LP		 1250 prefix, yes_no(s->sysv_has_lsb),
1251 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1252
1253 if (s->sysv_start_priority >= 0)
1254 fprintf(f,
9fff8a1f
LP		 1255 "%sSysVStartPriority: %i\n",
1256 prefix, s->sysv_start_priority);
2c4104f0 1257
8309400a
LP		 1258 if (s->sysv_runlevels)
1259 fprintf(f, "%sSysVRunLevels: %s\n",
1260 prefix, s->sysv_runlevels);
07459bb6 1261#endif
23a177ef 1262
9fff8a1f
LP		 1263 if (s->fsck_passno > 0)
1264 fprintf(f,
1265 "%sFsckPassNo: %i\n",
1266 prefix, s->fsck_passno);
1267
8c47c732
LP		 1268 if (s->status_text)
1269 fprintf(f, "%sStatus Text: %s\n",
1270 prefix, s->status_text);
1271
47be870b 1272 free(p2);
5cb5a6ff
LP		 1273}
1274
034c6ed7
LP		 1275static int service_load_pid_file(Service *s) {
1276 char *k;
034c6ed7 1277 int r;
5925dd3c 1278 pid_t pid;
034c6ed7
LP		 1279
1280 assert(s);
1281
6dfa5494
LP		 1282 if (s->main_pid_known)
1283 return 0;
1284
034c6ed7 1285 if (!s->pid_file)
6dfa5494 1286 return 0;
034c6ed7
LP		 1287
1288 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1289 return r;
1290
5925dd3c
LP		 1291 r = parse_pid(k, &pid);
1292 free(k);
034c6ed7 1293
5925dd3c
LP		 1294 if (r < 0)
1295 return r;
406eaf93 1296
5925dd3c
LP		 1297 if (kill(pid, 0) < 0 && errno != EPERM) {
1298 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1299 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1300 return -ESRCH;
1301 }
1302
5925dd3c 1303 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1304 return r;
1305
5925dd3c
LP		 1306 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1307 /* FIXME: we need to do something here */
1308 return r;
034c6ed7
LP		 1309
1310 return 0;
1311}
1312
4fbf50b3
LP		 1313static int service_search_main_pid(Service *s) {
1314 pid_t pid;
1315 int r;
1316
1317 assert(s);
1318
3185a36b
LP		 1319 /* If we know it anyway, don't ever fallback to unreliable
1320 * heuristics */
4fbf50b3
LP		 1321 if (s->main_pid_known)
1322 return 0;
1323
3185a36b
LP		 1324 if (!s->guess_main_pid)
1325 return 0;
1326
4fbf50b3
LP		 1327 assert(s->main_pid <= 0);
1328
1329 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1330 return -ENOENT;
1331
1332 if ((r = service_set_main_pid(s, pid)) < 0)
1333 return r;
1334
1335 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1336 /* FIXME: we need to do something here */
1337 return r;
1338
1339 return 0;
1340}
1341
3e33402a
LP		 1342static int service_get_sockets(Service *s, Set **_set) {
1343 Set *set;
ceee3d82
LP		 1344 Iterator i;
1345 char *t;
3e33402a 1346 int r;
ceee3d82
LP		 1347
1348 assert(s);
3e33402a
LP		 1349 assert(_set);
1350
6cf6bbc2
LP		 1351 if (s->socket_fd >= 0)
1352 return 0;
1353
f976f3f6
LP		 1354 if (!set_isempty(s->configured_sockets))
1355 return 0;
1356
3e33402a
LP		 1357 /* Collects all Socket objects that belong to this
1358 * service. Note that a service might have multiple sockets
1359 * via multiple names. */
1360
1361 if (!(set = set_new(NULL, NULL)))
1362 return -ENOMEM;
ceee3d82 1363
4cd1fbcc 1364 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1365 char *k;
1366 Unit *p;
1367
1368 /* Look for all socket objects that go by any of our
1369 * units and collect their fds */
1370
3e33402a
LP		 1371 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1372 r = -ENOMEM;
1373 goto fail;
1374 }
ceee3d82 1375
4cd1fbcc 1376 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1377 free(k);
1378
8d567588
LP		 1379 if (!p)
1380 continue;
ceee3d82 1381
3e33402a
LP		 1382 if ((r = set_put(set, p)) < 0)
1383 goto fail;
ceee3d82
LP		 1384 }
1385
3e33402a
LP		 1386 *_set = set;
1387 return 0;
1388
1389fail:
1390 set_free(set);
1391 return r;
1392}
1393
e537352b 1394static int service_notify_sockets_dead(Service *s) {
3e33402a 1395 Iterator i;
f976f3f6 1396 Set *set, *free_set = NULL;
47be870b 1397 Socket *sock;
3e33402a
LP		 1398 int r;
1399
1400 assert(s);
1401
f976f3f6
LP		 1402 /* Notifies all our sockets when we die */
1403
6cf6bbc2
LP		 1404 if (s->socket_fd >= 0)
1405 return 0;
1406
f976f3f6
LP		 1407 if (!set_isempty(s->configured_sockets))
1408 set = s->configured_sockets;
1409 else {
1410 if ((r = service_get_sockets(s, &free_set)) < 0)
1411 return r;
1412
1413 set = free_set;
1414 }
3e33402a 1415
47be870b
LP		 1416 SET_FOREACH(sock, set, i)
1417 socket_notify_service_dead(sock);
3e33402a 1418
f976f3f6 1419 set_free(free_set);
3e33402a 1420
ceee3d82
LP		 1421 return 0;
1422}
1423
034c6ed7
LP		 1424static void service_set_state(Service *s, ServiceState state) {
1425 ServiceState old_state;
5cb5a6ff
LP		 1426 assert(s);
1427
034c6ed7 1428 old_state = s->state;
5cb5a6ff 1429 s->state = state;
034c6ed7
LP		 1430
1431 if (state != SERVICE_START_PRE &&
1432 state != SERVICE_START &&
1433 state != SERVICE_START_POST &&
1434 state != SERVICE_RELOAD &&
1435 state != SERVICE_STOP &&
1436 state != SERVICE_STOP_SIGTERM &&
1437 state != SERVICE_STOP_SIGKILL &&
1438 state != SERVICE_STOP_POST &&
1439 state != SERVICE_FINAL_SIGTERM &&
1440 state != SERVICE_FINAL_SIGKILL &&
1441 state != SERVICE_AUTO_RESTART)
acbb0225 1442 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1443
7d55e835
LP		 1444 if (state != SERVICE_START &&
1445 state != SERVICE_START_POST &&
034c6ed7
LP		 1446 state != SERVICE_RUNNING &&
1447 state != SERVICE_RELOAD &&
1448 state != SERVICE_STOP &&
1449 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1450 state != SERVICE_STOP_SIGKILL) {
5e94833f 1451 service_unwatch_main_pid(s);
867b3b7d
LP		 1452 s->main_command = NULL;
1453 }
034c6ed7
LP		 1454
1455 if (state != SERVICE_START_PRE &&
1456 state != SERVICE_START &&
1457 state != SERVICE_START_POST &&
1458 state != SERVICE_RELOAD &&
1459 state != SERVICE_STOP &&
1460 state != SERVICE_STOP_SIGTERM &&
1461 state != SERVICE_STOP_SIGKILL &&
1462 state != SERVICE_STOP_POST &&
1463 state != SERVICE_FINAL_SIGTERM &&
e537352b 1464 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1465 service_unwatch_control_pid(s);
034c6ed7 1466 s->control_command = NULL;
a16e1123 1467 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1468 }
034c6ed7 1469
ceee3d82
LP		 1470 if (state == SERVICE_DEAD ||
1471 state == SERVICE_STOP ||
1472 state == SERVICE_STOP_SIGTERM ||
1473 state == SERVICE_STOP_SIGKILL ||
1474 state == SERVICE_STOP_POST ||
1475 state == SERVICE_FINAL_SIGTERM ||
1476 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1477 state == SERVICE_FAILED ||
ceee3d82 1478 state == SERVICE_AUTO_RESTART)
e537352b 1479 service_notify_sockets_dead(s);
ceee3d82 1480
4f2d528d
LP		 1481 if (state != SERVICE_START_PRE &&
1482 state != SERVICE_START &&
6cf6bbc2
LP		 1483 state != SERVICE_START_POST &&
1484 state != SERVICE_RUNNING &&
1485 state != SERVICE_RELOAD &&
1486 state != SERVICE_STOP &&
1487 state != SERVICE_STOP_SIGTERM &&
1488 state != SERVICE_STOP_SIGKILL &&
1489 state != SERVICE_STOP_POST &&
1490 state != SERVICE_FINAL_SIGTERM &&
1491 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1492 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1493 service_close_socket_fd(s);
6cf6bbc2
LP		 1494 service_connection_unref(s);
1495 }
4f2d528d 1496
f6023656
LP		 1497 /* For the inactive states unit_notify() will trim the cgroup,
1498 * but for exit we have to do that ourselves... */
38c52d46 1499 if (state == SERVICE_EXITED && s->meta.manager->n_deserializing <= 0)
f6023656
LP		 1500 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1501
e537352b 1502 if (old_state != state)
4cd1fbcc 1503 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1504
e2f3b44c
LP		 1505 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1506 s->reload_failure = false;
034c6ed7
LP		 1507}
1508
a16e1123
LP		 1509static int service_coldplug(Unit *u) {
1510 Service *s = SERVICE(u);
1511 int r;
1512
1513 assert(s);
1514 assert(s->state == SERVICE_DEAD);
1515
1516 if (s->deserialized_state != s->state) {
1517
1518 if (s->deserialized_state == SERVICE_START_PRE ||
1519 s->deserialized_state == SERVICE_START ||
1520 s->deserialized_state == SERVICE_START_POST ||
1521 s->deserialized_state == SERVICE_RELOAD ||
1522 s->deserialized_state == SERVICE_STOP ||
1523 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1524 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1525 s->deserialized_state == SERVICE_STOP_POST ||
1526 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1527 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1528 s->deserialized_state == SERVICE_AUTO_RESTART) {
1529
1530 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1531 usec_t k;
1532
1533 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1534
1535 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1536 return r;
1537 }
1538 }
a16e1123
LP		 1539
1540 if ((s->deserialized_state == SERVICE_START &&
1541 (s->type == SERVICE_FORKING ||
8c47c732 1542 s->type == SERVICE_DBUS ||
34e9ba66 1543 s->type == SERVICE_ONESHOT ||
8c47c732 1544 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1545 s->deserialized_state == SERVICE_START_POST ||
1546 s->deserialized_state == SERVICE_RUNNING ||
1547 s->deserialized_state == SERVICE_RELOAD ||
1548 s->deserialized_state == SERVICE_STOP ||
1549 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1550 s->deserialized_state == SERVICE_STOP_SIGKILL)
1551 if (s->main_pid > 0)
1552 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1553 return r;
1554
1555 if (s->deserialized_state == SERVICE_START_PRE ||
1556 s->deserialized_state == SERVICE_START ||
1557 s->deserialized_state == SERVICE_START_POST ||
1558 s->deserialized_state == SERVICE_RELOAD ||
1559 s->deserialized_state == SERVICE_STOP ||
1560 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1561 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1562 s->deserialized_state == SERVICE_STOP_POST ||
1563 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1564 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1565 if (s->control_pid > 0)
1566 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1567 return r;
1568
1569 service_set_state(s, s->deserialized_state);
1570 }
1571
1572 return 0;
1573}
1574
44d8db9e
LP		 1575static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1576 Iterator i;
1577 int r;
1578 int *rfds = NULL;
1579 unsigned rn_fds = 0;
f976f3f6 1580 Set *set, *free_set = NULL;
47be870b 1581 Socket *sock;
44d8db9e
LP		 1582
1583 assert(s);
1584 assert(fds);
1585 assert(n_fds);
1586
6cf6bbc2
LP		 1587 if (s->socket_fd >= 0)
1588 return 0;
1589
f976f3f6
LP		 1590 if (!set_isempty(s->configured_sockets))
1591 set = s->configured_sockets;
1592 else {
1593 if ((r = service_get_sockets(s, &free_set)) < 0)
1594 return r;
1595
1596 set = free_set;
1597 }
3e33402a 1598
47be870b 1599 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1600 int *cfds;
1601 unsigned cn_fds;
1602
47be870b 1603 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1604 goto fail;
1605
1606 if (!cfds)
1607 continue;
1608
1609 if (!rfds) {
1610 rfds = cfds;
1611 rn_fds = cn_fds;
1612 } else {
1613 int *t;
1614
1615 if (!(t = new(int, rn_fds+cn_fds))) {
1616 free(cfds);
1617 r = -ENOMEM;
1618 goto fail;
1619 }
1620
9c1b183c
LP		 1621 memcpy(t, rfds, rn_fds * sizeof(int));
1622 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1623 free(rfds);
1624 free(cfds);
1625
1626 rfds = t;
1627 rn_fds = rn_fds+cn_fds;
1628 }
1629 }
1630
1631 *fds = rfds;
1632 *n_fds = rn_fds;
3e33402a 1633
f976f3f6 1634 set_free(free_set);
3e33402a 1635
44d8db9e
LP		 1636 return 0;
1637
1638fail:
3e33402a 1639 set_free(set);
44d8db9e 1640 free(rfds);
3e33402a 1641
44d8db9e
LP		 1642 return r;
1643}
1644
81a2b7ce
LP		 1645static int service_spawn(
1646 Service *s,
1647 ExecCommand *c,
1648 bool timeout,
1649 bool pass_fds,
1650 bool apply_permissions,
1651 bool apply_chroot,
1e3ad081 1652 bool apply_tty_stdin,
c952c6ec 1653 bool set_notify_socket,
81a2b7ce
LP		 1654 pid_t *_pid) {
1655
034c6ed7
LP		 1656 pid_t pid;
1657 int r;
6cf6bbc2 1658 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1659 unsigned n_fds = 0, n_env = 0;
1660 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1661
1662 assert(s);
1663 assert(c);
1664 assert(_pid);
1665
6cf6bbc2
LP		 1666 if (pass_fds ||
1667 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1668 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1669 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1670
4f2d528d
LP		 1671 if (s->socket_fd >= 0) {
1672 fds = &s->socket_fd;
1673 n_fds = 1;
6cf6bbc2
LP		 1674 } else {
1675 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1676 goto fail;
1677
1678 fds = fdsbuf;
1679 }
4f2d528d 1680 }
44d8db9e 1681
e558336f 1682 if (timeout && s->timeout_usec) {
acbb0225 1683 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1684 goto fail;
1685 } else
acbb0225 1686 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1687
9e2f7c11
LP		 1688 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1689 r = -ENOMEM;
1690 goto fail;
1691 }
1692
9865f3b4 1693 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1694 r = -ENOMEM;
1695 goto fail;
1696 }
c952c6ec 1697
2105e76a 1698 if (set_notify_socket)
91b22f21 1699 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1700 r = -ENOMEM;
1701 goto fail;
1702 }
1703
2105e76a
LP		 1704 if (s->main_pid > 0)
1705 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1706 r = -ENOMEM;
1707 goto fail;
1708 }
2105e76a
LP		 1709
1710 if (!(final_env = strv_env_merge(2,
1711 s->meta.manager->environment,
1712 our_env,
1713 NULL))) {
1714 r = -ENOMEM;
1715 goto fail;
1716 }
c952c6ec 1717
9e2f7c11
LP		 1718 r = exec_spawn(c,
1719 argv,
1720 &s->exec_context,
1721 fds, n_fds,
2105e76a 1722 final_env,
9e2f7c11
LP		 1723 apply_permissions,
1724 apply_chroot,
1e3ad081 1725 apply_tty_stdin,
4cd1fbcc
LP		 1726 s->meta.manager->confirm_spawn,
1727 s->meta.cgroup_bondings,
9e2f7c11
LP		 1728 &pid);
1729
9e2f7c11 1730 if (r < 0)
034c6ed7
LP		 1731 goto fail;
1732
4f2d528d 1733
87f0e418 1734 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1735 /* FIXME: we need to do something here */
1736 goto fail;
1737
2105e76a
LP		 1738 free(fdsbuf);
1739 strv_free(argv);
1740 strv_free(our_env);
1741 strv_free(final_env);
1742
034c6ed7
LP		 1743 *_pid = pid;
1744
5cb5a6ff 1745 return 0;
034c6ed7
LP		 1746
1747fail:
2105e76a 1748 free(fdsbuf);
c952c6ec 1749 strv_free(argv);
2105e76a
LP		 1750 strv_free(our_env);
1751 strv_free(final_env);
c952c6ec 1752
034c6ed7 1753 if (timeout)
acbb0225 1754 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1755
1756 return r;
1757}
1758
80876c20
LP		 1759static int main_pid_good(Service *s) {
1760 assert(s);
1761
1762 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1763 * don't know */
1764
1765 /* If we know the pid file, then lets just check if it is
1766 * still valid */
6dfa5494
LP		 1767 if (s->main_pid_known) {
1768
1769 /* If it's an alien child let's check if it is still
1770 * alive ... */
1771 if (s->main_pid_alien)
1772 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1773
1774 /* .. otherwise assume we'll get a SIGCHLD for it,
1775 * which we really should wait for to collect exit
1776 * status and code */
80876c20 1777 return s->main_pid > 0;
6dfa5494 1778 }
80876c20
LP		 1779
1780 /* We don't know the pid */
1781 return -EAGAIN;
1782}
1783
1784static int control_pid_good(Service *s) {
1785 assert(s);
1786
1787 return s->control_pid > 0;
1788}
1789
1790static int cgroup_good(Service *s) {
1791 int r;
1792
1793 assert(s);
1794
4cd1fbcc 1795 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1796 return r;
1797
1798 return !r;
1799}
1800
034c6ed7
LP		 1801static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1802 int r;
1803 assert(s);
1804
1805 if (!success)
1806 s->failure = true;
1807
1808 if (allow_restart &&
47342320 1809 !s->forbid_restart &&
034c6ed7 1810 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1811 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1812 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1813 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1814 (s->main_exec_status.code == CLD_KILLED ||
1815 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1816
acbb0225 1817 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1818 goto fail;
1819
1820 service_set_state(s, SERVICE_AUTO_RESTART);
1821 } else
fdf20a31 1822 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1823
47342320
LP		 1824 s->forbid_restart = false;
1825
034c6ed7
LP		 1826 return;
1827
1828fail:
4cd1fbcc 1829 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1830 service_enter_dead(s, false, false);
1831}
1832
1833static void service_enter_signal(Service *s, ServiceState state, bool success);
1834
1835static void service_enter_stop_post(Service *s, bool success) {
1836 int r;
1837 assert(s);
1838
1839 if (!success)
1840 s->failure = true;
1841
5e94833f
LP		 1842 service_unwatch_control_pid(s);
1843
80876c20 1844 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1845 s->control_command_id = SERVICE_EXEC_STOP_POST;
1846
81a2b7ce
LP		 1847 if ((r = service_spawn(s,
1848 s->control_command,
1849 true,
1850 false,
1851 !s->permissions_start_only,
1852 !s->root_directory_start_only,
1e3ad081 1853 true,
c952c6ec 1854 false,
81a2b7ce 1855 &s->control_pid)) < 0)
034c6ed7
LP		 1856 goto fail;
1857
d6ea93e3 1858
80876c20
LP		 1859 service_set_state(s, SERVICE_STOP_POST);
1860 } else
1861 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1862
1863 return;
1864
1865fail:
4cd1fbcc 1866 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1867 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1868}
1869
1870static void service_enter_signal(Service *s, ServiceState state, bool success) {
1871 int r;
ca949c9d
LP		 1872 Set *pid_set = NULL;
1873 bool wait_for_exit = false;
034c6ed7
LP		 1874
1875 assert(s);
1876
1877 if (!success)
1878 s->failure = true;
1879
2e22afe9
LP		 1880 if (s->exec_context.kill_mode != KILL_NONE) {
1881 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1882
ca949c9d 1883 if (s->main_pid > 0) {
cd25cce9 1884 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1885 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1886 else
6dfa5494 1887 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1888 }
1889
ca949c9d 1890 if (s->control_pid > 0) {
cd25cce9 1891 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1892 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1893 else
1894 wait_for_exit = true;
1895 }
50159e6a 1896
ca949c9d 1897 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1898
ca949c9d
LP		 1899 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1900 r = -ENOMEM;
50159e6a 1901 goto fail;
ca949c9d
LP		 1902 }
1903
1904 /* Exclude the main/control pids from being killed via the cgroup */
1905 if (s->main_pid > 0)
1906 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1907 goto fail;
1908
1909 if (s->control_pid > 0)
1910 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1911 goto fail;
1912
430c18ed 1913 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1914 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1915 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1916 } else if (r > 0)
ca949c9d
LP		 1917 wait_for_exit = true;
1918
1919 set_free(pid_set);
da19d5c1 1920 pid_set = NULL;
50159e6a 1921 }
d6ea93e3 1922 }
034c6ed7 1923
ca949c9d 1924 if (wait_for_exit) {
e558336f
LP		 1925 if (s->timeout_usec > 0)
1926 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1927 goto fail;
d6ea93e3 1928
80876c20
LP		 1929 service_set_state(s, state);
1930 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1931 service_enter_stop_post(s, true);
1932 else
034c6ed7
LP		 1933 service_enter_dead(s, true, true);
1934
1935 return;
1936
1937fail:
4cd1fbcc 1938 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1939
80876c20 1940 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1941 service_enter_stop_post(s, false);
1942 else
1943 service_enter_dead(s, false, true);
ca949c9d
LP		 1944
1945 if (pid_set)
1946 set_free(pid_set);
034c6ed7
LP		 1947}
1948
1949static void service_enter_stop(Service *s, bool success) {
1950 int r;
5925dd3c 1951
034c6ed7
LP		 1952 assert(s);
1953
1954 if (!success)
1955 s->failure = true;
1956
5e94833f
LP		 1957 service_unwatch_control_pid(s);
1958
80876c20 1959 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1960 s->control_command_id = SERVICE_EXEC_STOP;
1961
81a2b7ce
LP		 1962 if ((r = service_spawn(s,
1963 s->control_command,
1964 true,
1965 false,
1966 !s->permissions_start_only,
1967 !s->root_directory_start_only,
c952c6ec 1968 false,
1e3ad081 1969 false,
e55224ca 1970 &s->control_pid)) < 0)
034c6ed7
LP		 1971 goto fail;
1972
80876c20
LP		 1973 service_set_state(s, SERVICE_STOP);
1974 } else
034c6ed7
LP		 1975 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1976
1977 return;
1978
1979fail:
4cd1fbcc 1980 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1981 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1982}
1983
80876c20 1984static void service_enter_running(Service *s, bool success) {
4eab639f 1985 int main_pid_ok, cgroup_ok;
80876c20
LP		 1986 assert(s);
1987
1988 if (!success)
1989 s->failure = true;
1990
4eab639f
LP		 1991 main_pid_ok = main_pid_good(s);
1992 cgroup_ok = cgroup_good(s);
1993
1994 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1995 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1996 service_set_state(s, SERVICE_RUNNING);
02ee865a 1997 else if (s->remain_after_exit)
80876c20
LP		 1998 service_set_state(s, SERVICE_EXITED);
1999 else
2000 service_enter_stop(s, true);
2001}
2002
034c6ed7
LP		 2003static void service_enter_start_post(Service *s) {
2004 int r;
2005 assert(s);
2006
5e94833f
LP		 2007 service_unwatch_control_pid(s);
2008
80876c20 2009 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2010 s->control_command_id = SERVICE_EXEC_START_POST;
2011
81a2b7ce
LP		 2012 if ((r = service_spawn(s,
2013 s->control_command,
2014 true,
2015 false,
2016 !s->permissions_start_only,
2017 !s->root_directory_start_only,
c952c6ec 2018 false,
1e3ad081 2019 false,
e55224ca 2020 &s->control_pid)) < 0)
034c6ed7
LP		 2021 goto fail;
2022
80876c20
LP		 2023 service_set_state(s, SERVICE_START_POST);
2024 } else
2025 service_enter_running(s, true);
034c6ed7
LP		 2026
2027 return;
2028
2029fail:
4cd1fbcc 2030 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2031 service_enter_stop(s, false);
2032}
2033
2034static void service_enter_start(Service *s) {
2035 pid_t pid;
2036 int r;
867b3b7d 2037 ExecCommand *c;
034c6ed7
LP		 2038
2039 assert(s);
2040
2041 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2042 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2043
80876c20
LP		 2044 if (s->type == SERVICE_FORKING)
2045 service_unwatch_control_pid(s);
2046 else
2047 service_unwatch_main_pid(s);
2048
867b3b7d
LP		 2049 if (s->type == SERVICE_FORKING) {
2050 s->control_command_id = SERVICE_EXEC_START;
2051 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2052
2053 s->main_command = NULL;
2054 } else {
2055 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2056 s->control_command = NULL;
2057
2058 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2059 }
34e9ba66 2060
81a2b7ce 2061 if ((r = service_spawn(s,
867b3b7d 2062 c,
8c47c732 2063 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2064 true,
2065 true,
2066 true,
1e3ad081 2067 true,
c952c6ec 2068 s->notify_access != NOTIFY_NONE,
81a2b7ce 2069 &pid)) < 0)
034c6ed7
LP		 2070 goto fail;
2071
2072 if (s->type == SERVICE_SIMPLE) {
2073 /* For simple services we immediately start
2074 * the START_POST binaries. */
2075
5925dd3c 2076 service_set_main_pid(s, pid);
034c6ed7
LP		 2077 service_enter_start_post(s);
2078
2079 } else if (s->type == SERVICE_FORKING) {
2080
2081 /* For forking services we wait until the start
2082 * process exited. */
2083
e55224ca 2084 s->control_pid = pid;
80876c20
LP		 2085 service_set_state(s, SERVICE_START);
2086
34e9ba66 2087 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2088 s->type == SERVICE_DBUS ||
2089 s->type == SERVICE_NOTIFY) {
7d55e835 2090
34e9ba66 2091 /* For oneshot services we wait until the start
7d55e835
LP		 2092 * process exited, too, but it is our main process. */
2093
05e343b7 2094 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2095 * but wait for the bus name to appear on the
2096 * bus. Notify services are similar. */
05e343b7 2097
5925dd3c 2098 service_set_main_pid(s, pid);
80876c20 2099 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2100 } else
2101 assert_not_reached("Unknown service type");
2102
2103 return;
2104
2105fail:
4cd1fbcc 2106 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2107 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2108}
2109
2110static void service_enter_start_pre(Service *s) {
2111 int r;
2112
2113 assert(s);
2114
5e94833f
LP		 2115 service_unwatch_control_pid(s);
2116
80876c20 2117 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2118 s->control_command_id = SERVICE_EXEC_START_PRE;
2119
81a2b7ce
LP		 2120 if ((r = service_spawn(s,
2121 s->control_command,
2122 true,
2123 false,
2124 !s->permissions_start_only,
2125 !s->root_directory_start_only,
1e3ad081 2126 true,
c952c6ec 2127 false,
e55224ca 2128 &s->control_pid)) < 0)
034c6ed7
LP		 2129 goto fail;
2130
80876c20
LP		 2131 service_set_state(s, SERVICE_START_PRE);
2132 } else
034c6ed7
LP		 2133 service_enter_start(s);
2134
2135 return;
2136
2137fail:
4cd1fbcc 2138 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2139 service_enter_dead(s, false, true);
2140}
2141
2142static void service_enter_restart(Service *s) {
2143 int r;
398ef8ba
LP		 2144 DBusError error;
2145
034c6ed7 2146 assert(s);
398ef8ba 2147 dbus_error_init(&error);
034c6ed7 2148
2edfa366
LP		 2149 if (s->meta.job) {
2150 log_info("Job pending for unit, delaying automatic restart.");
2151
2152 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2153 goto fail;
2154 }
2155
9ea9a0c8
LP		 2156 service_enter_dead(s, true, false);
2157
7b2603e6 2158 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2159 goto fail;
2160
4cd1fbcc 2161 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2162 return;
2163
2164fail:
398ef8ba 2165 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2166 service_enter_dead(s, false, false);
398ef8ba
LP		 2167
2168 dbus_error_free(&error);
034c6ed7
LP		 2169}
2170
2171static void service_enter_reload(Service *s) {
2172 int r;
2173
2174 assert(s);
2175
5e94833f
LP		 2176 service_unwatch_control_pid(s);
2177
80876c20 2178 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2179 s->control_command_id = SERVICE_EXEC_RELOAD;
2180
81a2b7ce
LP		 2181 if ((r = service_spawn(s,
2182 s->control_command,
2183 true,
2184 false,
2185 !s->permissions_start_only,
2186 !s->root_directory_start_only,
c952c6ec 2187 false,
1e3ad081 2188 false,
e55224ca 2189 &s->control_pid)) < 0)
034c6ed7
LP		 2190 goto fail;
2191
80876c20
LP		 2192 service_set_state(s, SERVICE_RELOAD);
2193 } else
2194 service_enter_running(s, true);
034c6ed7
LP		 2195
2196 return;
2197
2198fail:
4cd1fbcc 2199 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2200 s->reload_failure = true;
2201 service_enter_running(s, true);
034c6ed7
LP		 2202}
2203
34e9ba66 2204static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2205 int r;
2206
2207 assert(s);
2208 assert(s->control_command);
2209 assert(s->control_command->command_next);
2210
2211 if (!success)
2212 s->failure = true;
2213
34e9ba66 2214 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2215
34e9ba66 2216 s->control_command = s->control_command->command_next;
5e94833f
LP		 2217 service_unwatch_control_pid(s);
2218
81a2b7ce
LP		 2219 if ((r = service_spawn(s,
2220 s->control_command,
2221 true,
2222 false,
2223 !s->permissions_start_only,
2224 !s->root_directory_start_only,
5830833f
LP		 2225 s->control_command_id == SERVICE_EXEC_START_PRE ||
2226 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2227 false,
e55224ca 2228 &s->control_pid)) < 0)
034c6ed7
LP		 2229 goto fail;
2230
2231 return;
2232
2233fail:
34e9ba66 2234 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2235
80876c20
LP		 2236 if (s->state == SERVICE_START_PRE)
2237 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2238 else if (s->state == SERVICE_STOP)
2239 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2240 else if (s->state == SERVICE_STOP_POST)
2241 service_enter_dead(s, false, true);
e2f3b44c
LP		 2242 else if (s->state == SERVICE_RELOAD) {
2243 s->reload_failure = true;
2244 service_enter_running(s, true);
2245 } else
034c6ed7 2246 service_enter_stop(s, false);
5cb5a6ff
LP		 2247}
2248
34e9ba66
LP		 2249static void service_run_next_main(Service *s, bool success) {
2250 pid_t pid;
2251 int r;
2252
2253 assert(s);
867b3b7d
LP		 2254 assert(s->main_command);
2255 assert(s->main_command->command_next);
2256 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2257
2258 if (!success)
2259 s->failure = true;
2260
867b3b7d 2261 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2262 service_unwatch_main_pid(s);
2263
2264 if ((r = service_spawn(s,
867b3b7d 2265 s->main_command,
34e9ba66
LP		 2266 false,
2267 true,
2268 true,
2269 true,
2270 true,
2271 s->notify_access != NOTIFY_NONE,
2272 &pid)) < 0)
2273 goto fail;
2274
2275 service_set_main_pid(s, pid);
2276
2277 return;
2278
2279fail:
2280 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2281 service_enter_stop(s, false);
2282}
2283
87f0e418
LP		 2284static int service_start(Unit *u) {
2285 Service *s = SERVICE(u);
5cb5a6ff
LP		 2286
2287 assert(s);
2288
034c6ed7
LP		 2289 /* We cannot fulfill this request right now, try again later
2290 * please! */
2291 if (s->state == SERVICE_STOP ||
2292 s->state == SERVICE_STOP_SIGTERM ||
2293 s->state == SERVICE_STOP_SIGKILL ||
2294 s->state == SERVICE_STOP_POST ||
2295 s->state == SERVICE_FINAL_SIGTERM ||
2296 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2297 return -EAGAIN;
2298
034c6ed7
LP		 2299 /* Already on it! */
2300 if (s->state == SERVICE_START_PRE ||
2301 s->state == SERVICE_START ||
2302 s->state == SERVICE_START_POST)
2303 return 0;
2304
fdf20a31 2305 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2306
1e2e8133
LP		 2307 /* Make sure we don't enter a busy loop of some kind. */
2308 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2309 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2310 return -ECANCELED;
1e2e8133
LP		 2311 }
2312
034c6ed7
LP		 2313 s->failure = false;
2314 s->main_pid_known = false;
6dfa5494 2315 s->main_pid_alien = false;
47342320 2316 s->forbid_restart = false;
034c6ed7
LP		 2317
2318 service_enter_start_pre(s);
2319 return 0;
5cb5a6ff
LP		 2320}
2321
87f0e418
LP		 2322static int service_stop(Unit *u) {
2323 Service *s = SERVICE(u);
5cb5a6ff
LP		 2324
2325 assert(s);
2326
3f6c78dc
LP		 2327 /* This is a user request, so don't do restarts on this
2328 * shutdown. */
47342320 2329 s->forbid_restart = true;
034c6ed7 2330
e537352b
LP		 2331 /* Already on it */
2332 if (s->state == SERVICE_STOP ||
2333 s->state == SERVICE_STOP_SIGTERM ||
2334 s->state == SERVICE_STOP_SIGKILL ||
2335 s->state == SERVICE_STOP_POST ||
2336 s->state == SERVICE_FINAL_SIGTERM ||
2337 s->state == SERVICE_FINAL_SIGKILL)
2338 return 0;
2339
3f6c78dc 2340 /* Don't allow a restart */
034c6ed7
LP		 2341 if (s->state == SERVICE_AUTO_RESTART) {
2342 service_set_state(s, SERVICE_DEAD);
2343 return 0;
2344 }
2345
3f6c78dc
LP		 2346 /* If there's already something running we go directly into
2347 * kill mode. */
2348 if (s->state == SERVICE_START_PRE ||
2349 s->state == SERVICE_START ||
2350 s->state == SERVICE_START_POST ||
2351 s->state == SERVICE_RELOAD) {
2352 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2353 return 0;
2354 }
5cb5a6ff 2355
3f6c78dc
LP		 2356 assert(s->state == SERVICE_RUNNING ||
2357 s->state == SERVICE_EXITED);
3a762661 2358
034c6ed7 2359 service_enter_stop(s, true);
5cb5a6ff
LP		 2360 return 0;
2361}
2362
87f0e418
LP		 2363static int service_reload(Unit *u) {
2364 Service *s = SERVICE(u);
034c6ed7
LP		 2365
2366 assert(s);
2367
80876c20 2368 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2369
2370 service_enter_reload(s);
5cb5a6ff
LP		 2371 return 0;
2372}
2373
87f0e418
LP		 2374static bool service_can_reload(Unit *u) {
2375 Service *s = SERVICE(u);
034c6ed7
LP		 2376
2377 assert(s);
2378
2379 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2380}
2381
a16e1123
LP		 2382static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2383 Service *s = SERVICE(u);
2384
2385 assert(u);
2386 assert(f);
2387 assert(fds);
2388
2389 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2390 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2391
2392 if (s->control_pid > 0)
5925dd3c 2393 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2394
5925dd3c
LP		 2395 if (s->main_pid_known && s->main_pid > 0)
2396 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2397
2398 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2399
3a2776bc
LP		 2400 if (s->status_text)
2401 unit_serialize_item(u, f, "status-text", s->status_text);
2402
a16e1123
LP		 2403 /* There's a minor uncleanliness here: if there are multiple
2404 * commands attached here, we will start from the first one
2405 * again */
2406 if (s->control_command_id >= 0)
825636e5 2407 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2408
2409 if (s->socket_fd >= 0) {
2410 int copy;
2411
2412 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2413 return copy;
2414
2415 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2416 }
2417
ecdbca40
LP		 2418 if (s->main_exec_status.pid > 0) {
2419 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2420 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2421 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2422
799fd0fd 2423 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2424 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2425 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2426 }
2427 }
2428
a16e1123
LP		 2429 return 0;
2430}
2431
2432static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2433 Service *s = SERVICE(u);
a16e1123
LP		 2434
2435 assert(u);
2436 assert(key);
2437 assert(value);
2438 assert(fds);
2439
2440 if (streq(key, "state")) {
2441 ServiceState state;
2442
2443 if ((state = service_state_from_string(value)) < 0)
2444 log_debug("Failed to parse state value %s", value);
2445 else
2446 s->deserialized_state = state;
2447 } else if (streq(key, "failure")) {
2448 int b;
2449
2450 if ((b = parse_boolean(value)) < 0)
2451 log_debug("Failed to parse failure value %s", value);
2452 else
2453 s->failure = b || s->failure;
2454 } else if (streq(key, "control-pid")) {
5925dd3c 2455 pid_t pid;
a16e1123 2456
e364ad06 2457 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2458 log_debug("Failed to parse control-pid value %s", value);
2459 else
e55224ca 2460 s->control_pid = pid;
a16e1123 2461 } else if (streq(key, "main-pid")) {
5925dd3c 2462 pid_t pid;
a16e1123 2463
e364ad06 2464 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2465 log_debug("Failed to parse main-pid value %s", value);
2466 else
5925dd3c 2467 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2468 } else if (streq(key, "main-pid-known")) {
2469 int b;
2470
2471 if ((b = parse_boolean(value)) < 0)
2472 log_debug("Failed to parse main-pid-known value %s", value);
2473 else
2474 s->main_pid_known = b;
3a2776bc
LP		 2475 } else if (streq(key, "status-text")) {
2476 char *t;
2477
2478 if ((t = strdup(value))) {
2479 free(s->status_text);
2480 s->status_text = t;
2481 }
2482
a16e1123
LP		 2483 } else if (streq(key, "control-command")) {
2484 ServiceExecCommand id;
2485
2486 if ((id = service_exec_command_from_string(value)) < 0)
2487 log_debug("Failed to parse exec-command value %s", value);
2488 else {
2489 s->control_command_id = id;
2490 s->control_command = s->exec_command[id];
2491 }
2492 } else if (streq(key, "socket-fd")) {
2493 int fd;
2494
2495 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2496 log_debug("Failed to parse socket-fd value %s", value);
2497 else {
2498
2499 if (s->socket_fd >= 0)
2500 close_nointr_nofail(s->socket_fd);
2501 s->socket_fd = fdset_remove(fds, fd);
2502 }
ecdbca40
LP		 2503 } else if (streq(key, "main-exec-status-pid")) {
2504 pid_t pid;
2505
e364ad06 2506 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2507 log_debug("Failed to parse main-exec-status-pid value %s", value);
2508 else
2509 s->main_exec_status.pid = pid;
2510 } else if (streq(key, "main-exec-status-code")) {
2511 int i;
2512
e364ad06 2513 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2514 log_debug("Failed to parse main-exec-status-code value %s", value);
2515 else
2516 s->main_exec_status.code = i;
2517 } else if (streq(key, "main-exec-status-status")) {
2518 int i;
2519
e364ad06 2520 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2521 log_debug("Failed to parse main-exec-status-status value %s", value);
2522 else
2523 s->main_exec_status.status = i;
799fd0fd
LP		 2524 } else if (streq(key, "main-exec-status-start"))
2525 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2526 else if (streq(key, "main-exec-status-exit"))
2527 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2528 else
a16e1123
LP		 2529 log_debug("Unknown serialization key '%s'", key);
2530
2531 return 0;
2532}
2533
87f0e418
LP		 2534static UnitActiveState service_active_state(Unit *u) {
2535 assert(u);
5cb5a6ff 2536
acbb0225 2537 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2538}
2539
10a94420
LP		 2540static const char *service_sub_state_to_string(Unit *u) {
2541 assert(u);
2542
2543 return service_state_to_string(SERVICE(u)->state);
2544}
2545
701cc384
LP		 2546static bool service_check_gc(Unit *u) {
2547 Service *s = SERVICE(u);
2548
2549 assert(s);
2550
6d55002a
LP		 2551 /* Never clean up services that still have a process around,
2552 * even if the service is formally dead. */
2553 if (cgroup_good(s) > 0 ||
2554 main_pid_good(s) > 0 ||
2555 control_pid_good(s) > 0)
2556 return true;
2557
2558#ifdef HAVE_SYSV_COMPAT
2559 if (s->sysv_path)
2560 return true;
07459bb6 2561#endif
701cc384 2562
6d55002a
LP		 2563 return false;
2564}
2565
701cc384
LP		 2566static bool service_check_snapshot(Unit *u) {
2567 Service *s = SERVICE(u);
2568
2569 assert(s);
2570
2571 return !s->got_socket_fd;
2572}
2573
87f0e418
LP		 2574static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2575 Service *s = SERVICE(u);
034c6ed7 2576 bool success;
5cb5a6ff
LP		 2577
2578 assert(s);
034c6ed7
LP		 2579 assert(pid >= 0);
2580
f21781d5 2581 if (!s->meta.fragment_path)
d06dacd0
LP		 2582 success = is_clean_exit_lsb(code, status);
2583 else
2584 success = is_clean_exit(code, status);
034c6ed7
LP		 2585
2586 if (s->main_pid == pid) {
2587
034c6ed7 2588 s->main_pid = 0;
6ea832a2 2589 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2590
867b3b7d
LP		 2591 /* If this is not a forking service than the main
2592 * process got started and hence we copy the exit
2593 * status so that it is recorded both as main and as
2594 * control process exit status */
2595 if (s->main_command) {
2596 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2597
867b3b7d 2598 if (s->main_command->ignore)
b708e7ce 2599 success = true;
034c6ed7
LP		 2600 }
2601
92abbefb
LP		 2602 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2603 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2604 s->failure = s->failure || !success;
034c6ed7 2605
867b3b7d
LP		 2606 if (s->main_command &&
2607 s->main_command->command_next &&
34e9ba66 2608 success) {
034c6ed7 2609
34e9ba66
LP		 2610 /* There is another command to *
2611 * execute, so let's do that. */
034c6ed7 2612
34e9ba66
LP		 2613 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2614 service_run_next_main(s, success);
034c6ed7 2615
34e9ba66
LP		 2616 } else {
2617
2618 /* The service exited, so the service is officially
2619 * gone. */
867b3b7d 2620 s->main_command = NULL;
34e9ba66
LP		 2621
2622 switch (s->state) {
2623
2624 case SERVICE_START_POST:
2625 case SERVICE_RELOAD:
2626 case SERVICE_STOP:
2627 /* Need to wait until the operation is
2628 * done */
c4653a4d 2629 break;
7d55e835 2630
34e9ba66
LP		 2631 case SERVICE_START:
2632 if (s->type == SERVICE_ONESHOT) {
2633 /* This was our main goal, so let's go on */
2634 if (success)
2635 service_enter_start_post(s);
2636 else
2637 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2638 break;
2639 } else {
2640 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2641
34e9ba66
LP		 2642 /* Fall through */
2643 }
034c6ed7 2644
34e9ba66
LP		 2645 case SERVICE_RUNNING:
2646 service_enter_running(s, success);
2647 break;
034c6ed7 2648
34e9ba66
LP		 2649 case SERVICE_STOP_SIGTERM:
2650 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2651
34e9ba66
LP		 2652 if (!control_pid_good(s))
2653 service_enter_stop_post(s, success);
5cb5a6ff 2654
34e9ba66
LP		 2655 /* If there is still a control process, wait for that first */
2656 break;
2657
2658 default:
2659 assert_not_reached("Uh, main process died at wrong time.");
2660 }
034c6ed7 2661 }
5cb5a6ff 2662
034c6ed7 2663 } else if (s->control_pid == pid) {
034c6ed7 2664
34e9ba66
LP		 2665 s->control_pid = 0;
2666
b708e7ce 2667 if (s->control_command) {
6ea832a2 2668 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2669
b708e7ce
LP		 2670 if (s->control_command->ignore)
2671 success = true;
2672 }
2673
34e9ba66 2674 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2675 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2676 s->failure = s->failure || !success;
034c6ed7 2677
34e9ba66
LP		 2678 if (s->control_command &&
2679 s->control_command->command_next &&
2680 success) {
034c6ed7
LP		 2681
2682 /* There is another command to *
2683 * execute, so let's do that. */
2684
34e9ba66
LP		 2685 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2686 service_run_next_control(s, success);
034c6ed7 2687
80876c20 2688 } else {
034c6ed7
LP		 2689 /* No further commands for this step, so let's
2690 * figure out what to do next */
2691
a16e1123
LP		 2692 s->control_command = NULL;
2693 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2694
9e2f7c11 2695 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2696
034c6ed7
LP		 2697 switch (s->state) {
2698
2699 case SERVICE_START_PRE:
2700 if (success)
2701 service_enter_start(s);
2702 else
80876c20 2703 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2704 break;
2705
2706 case SERVICE_START:
2707 assert(s->type == SERVICE_FORKING);
2708
2709 /* Let's try to load the pid
2710 * file here if we can. We
2711 * ignore the return value,
2712 * since the PID file might
2713 * actually be created by a
2714 * START_POST script */
2715
2716 if (success) {
4fbf50b3
LP		 2717 service_load_pid_file(s);
2718 service_search_main_pid(s);
034c6ed7
LP		 2719
2720 service_enter_start_post(s);
2721 } else
80876c20 2722 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2723
2724 break;
2725
2726 case SERVICE_START_POST:
6dfa5494
LP		 2727 if (success) {
2728 service_load_pid_file(s);
2729 service_search_main_pid(s);
034c6ed7
LP		 2730 }
2731
3185a36b
LP		 2732 s->reload_failure = !success;
2733 service_enter_running(s, true);
2734 break;
034c6ed7
LP		 2735
2736 case SERVICE_RELOAD:
3185a36b
LP		 2737 if (success) {
2738 service_load_pid_file(s);
2739 service_search_main_pid(s);
2740 }
2741
e2f3b44c
LP		 2742 s->reload_failure = !success;
2743 service_enter_running(s, true);
034c6ed7
LP		 2744 break;
2745
2746 case SERVICE_STOP:
80876c20 2747 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2748 break;
2749
2750 case SERVICE_STOP_SIGTERM:
2751 case SERVICE_STOP_SIGKILL:
2752 if (main_pid_good(s) <= 0)
2753 service_enter_stop_post(s, success);
2754
2755 /* If there is still a service
2756 * process around, wait until
2757 * that one quit, too */
2758 break;
2759
2760 case SERVICE_STOP_POST:
2761 case SERVICE_FINAL_SIGTERM:
2762 case SERVICE_FINAL_SIGKILL:
2763 service_enter_dead(s, success, true);
2764 break;
2765
2766 default:
2767 assert_not_reached("Uh, control process died at wrong time.");
2768 }
2769 }
8c47c732 2770 }
c4e2ceae
LP		 2771
2772 /* Notify clients about changed exit status */
2773 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2774}
2775
acbb0225 2776static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2777 Service *s = SERVICE(u);
034c6ed7
LP		 2778
2779 assert(s);
2780 assert(elapsed == 1);
2781
acbb0225 2782 assert(w == &s->timer_watch);
034c6ed7
LP		 2783
2784 switch (s->state) {
2785
2786 case SERVICE_START_PRE:
2787 case SERVICE_START:
9e2f7c11 2788 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2789 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2790 break;
2791
034c6ed7 2792 case SERVICE_START_POST:
9e2f7c11 2793 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2794 service_enter_stop(s, false);
2795 break;
2796
e2f3b44c
LP		 2797 case SERVICE_RELOAD:
2798 log_warning("%s operation timed out. Stopping.", u->meta.id);
2799 s->reload_failure = true;
2800 service_enter_running(s, true);
2801 break;
2802
034c6ed7 2803 case SERVICE_STOP:
9e2f7c11 2804 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2805 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2806 break;
2807
2808 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2809 if (s->exec_context.send_sigkill) {
2810 log_warning("%s stopping timed out. Killing.", u->meta.id);
2811 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2812 } else {
2813 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2814 service_enter_stop_post(s, false);
2815 }
2816
034c6ed7
LP		 2817 break;
2818
2819 case SERVICE_STOP_SIGKILL:
35b8ca3a 2820 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 2821 * Must be something we cannot kill, so let's just be
2822 * weirded out and continue */
2823
9e2f7c11 2824 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2825 service_enter_stop_post(s, false);
2826 break;
2827
2828 case SERVICE_STOP_POST:
9e2f7c11 2829 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2830 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2831 break;
2832
2833 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2834 if (s->exec_context.send_sigkill) {
2835 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2836 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2837 } else {
2838 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2839 service_enter_dead(s, false, true);
2840 }
2841
034c6ed7
LP		 2842 break;
2843
2844 case SERVICE_FINAL_SIGKILL:
fdf20a31 2845 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2846 service_enter_dead(s, false, true);
2847 break;
2848
2849 case SERVICE_AUTO_RESTART:
54165a39 2850 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2851 service_enter_restart(s);
2852 break;
2853
2854 default:
2855 assert_not_reached("Timeout at wrong time.");
2856 }
5cb5a6ff
LP		 2857}
2858
8e274523
LP		 2859static void service_cgroup_notify_event(Unit *u) {
2860 Service *s = SERVICE(u);
2861
2862 assert(u);
2863
9e2f7c11 2864 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2865
2866 switch (s->state) {
2867
2868 /* Waiting for SIGCHLD is usually more interesting,
2869 * because it includes return codes/signals. Which is
2870 * why we ignore the cgroup events for most cases,
2871 * except when we don't know pid which to expect the
2872 * SIGCHLD for. */
2873
2874 case SERVICE_RUNNING:
80876c20 2875 service_enter_running(s, true);
8e274523
LP		 2876 break;
2877
28708d8a
LP		 2878 case SERVICE_STOP_SIGTERM:
2879 case SERVICE_STOP_SIGKILL:
6dfa5494 2880
28708d8a
LP		 2881 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2882 service_enter_stop_post(s, true);
2883
2884 break;
2885
7f97f0fe
LP		 2886 case SERVICE_FINAL_SIGTERM:
2887 case SERVICE_FINAL_SIGKILL:
2888 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2889 service_enter_dead(s, true, true);
2890
2891 break;
2892
8e274523
LP		 2893 default:
2894 ;
2895 }
2896}
2897
c952c6ec 2898static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2899 Service *s = SERVICE(u);
2900 const char *e;
2901
2902 assert(u);
2903
c952c6ec
LP		 2904 if (s->notify_access == NOTIFY_NONE) {
2905 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2906 u->meta.id, (unsigned long) pid);
2907 return;
2908 }
2909
2910 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2911 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2912 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2913 return;
2914 }
2915
8c47c732
LP		 2916 log_debug("%s: Got message", u->meta.id);
2917
2918 /* Interpret MAINPID= */
2919 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2920 (s->state == SERVICE_START ||
2921 s->state == SERVICE_START_POST ||
2922 s->state == SERVICE_RUNNING ||
2923 s->state == SERVICE_RELOAD)) {
8c47c732 2924
5925dd3c 2925 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2926 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2927 else {
2928 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2929 service_set_main_pid(s, pid);
8c47c732
LP		 2930 }
2931 }
2932
2933 /* Interpret READY= */
2934 if (s->type == SERVICE_NOTIFY &&
2935 s->state == SERVICE_START &&
2936 strv_find(tags, "READY=1")) {
2937 log_debug("%s: got READY=1", u->meta.id);
2938
2939 service_enter_start_post(s);
2940 }
2941
2942 /* Interpret STATUS= */
2943 if ((e = strv_find_prefix(tags, "STATUS="))) {
2944 char *t;
2945
3a2776bc
LP		 2946 if (e[7]) {
2947 if (!(t = strdup(e+7))) {
2948 log_error("Failed to allocate string.");
2949 return;
2950 }
2951
2952 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2953
3a2776bc
LP		 2954 free(s->status_text);
2955 s->status_text = t;
2956 } else {
2957 free(s->status_text);
2958 s->status_text = NULL;
2959 }
8c47c732 2960
8c47c732 2961 }
c4e2ceae
LP		 2962
2963 /* Notify clients about changed status or main pid */
2964 unit_add_to_dbus_queue(u);
8c47c732
LP		 2965}
2966
07459bb6 2967#ifdef HAVE_SYSV_COMPAT
2c4104f0 2968static int service_enumerate(Manager *m) {
2c4104f0
LP		 2969 char **p;
2970 unsigned i;
2971 DIR *d = NULL;
2972 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2973 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2974 Unit *service;
2975 Iterator j;
2c4104f0
LP		 2976 int r;
2977
2978 assert(m);
2979
c68364b7
LP		 2980 zero(runlevel_services);
2981
84e3543e 2982 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2983 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2984 struct dirent *de;
2985
2986 free(path);
2987 path = NULL;
09cd1ab1 2988 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2989 r = -ENOMEM;
2990 goto finish;
2991 }
2992
2993 if (d)
2994 closedir(d);
2995
2996 if (!(d = opendir(path))) {
2997 if (errno != ENOENT)
2998 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2999
3000 continue;
3001 }
3002
3003 while ((de = readdir(d))) {
db06e3b6 3004 int a, b;
2c4104f0
LP		 3005
3006 if (ignore_file(de->d_name))
3007 continue;
3008
3009 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3010 continue;
3011
3012 if (strlen(de->d_name) < 4)
3013 continue;
3014
db06e3b6
LP		 3015 a = undecchar(de->d_name[1]);
3016 b = undecchar(de->d_name[2]);
3017
3018 if (a < 0 || b < 0)
3019 continue;
3020
2c4104f0
LP		 3021 free(fpath);
3022 fpath = NULL;
09cd1ab1 3023 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 3024 r = -ENOMEM;
3025 goto finish;
3026 }
3027
3028 if (access(fpath, X_OK) < 0) {
3029
3030 if (errno != ENOENT)
3031 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3032
3033 continue;
3034 }
3035
3036 free(name);
b7ccee3c 3037 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3038 r = -ENOMEM;
3039 goto finish;
3040 }
3041
398ef8ba 3042 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3043 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3044 continue;
3045 }
2c4104f0 3046
c68364b7
LP		 3047 if (de->d_name[0] == 'S') {
3048
f73d93a4 3049 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3050 SERVICE(service)->sysv_start_priority_from_rcnd =
3051 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3052
c68364b7 3053 SERVICE(service)->sysv_enabled = true;
f73d93a4 3054 }
db06e3b6 3055
c68364b7
LP		 3056 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3057 goto finish;
2c4104f0 3058
c68364b7 3059 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3060 goto finish;
23a177ef 3061
fc5df99e
LP		 3062 } else if (de->d_name[0] == 'K' &&
3063 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3064 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3065
c68364b7
LP		 3066 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3067 goto finish;
3068
3069 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3070 goto finish;
3071 }
3072 }
3073 }
3074
c68364b7
LP		 3075 /* Now we loaded all stubs and are aware of the lowest
3076 start-up priority for all services, not let's actually load
3077 the services, this will also tell us which services are
3078 actually native now */
3079 manager_dispatch_load_queue(m);
3080
3081 /* If this is a native service, rely on native ways to pull in
3082 * a service, don't pull it in via sysv rcN.d links. */
3083 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3084 SET_FOREACH(service, runlevel_services[i], j) {
3085 service = unit_follow_merge(service);
3086
3087 if (service->meta.fragment_path)
3088 continue;
3089
3090 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3091 goto finish;
3092 }
3093
3094 /* We honour K links only for halt/reboot. For the normal
3095 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3096 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3097 * between the runlevels 0 and 6 and just add them to the
3098 * special shutdown target. On SUSE the boot.d/ runlevel is
3099 * also used for shutdown, so we add links for that too to the
3100 * shutdown target.*/
3101 SET_FOREACH(service, shutdown_services, j) {
3102 service = unit_follow_merge(service);
3103
3104 if (service->meta.fragment_path)
3105 continue;
3106
ead8e478 3107 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3108 goto finish;
3109 }
3110
2c4104f0
LP		 3111 r = 0;
3112
3113finish:
3114 free(path);
3115 free(fpath);
3116 free(name);
fbe9f3a9 3117
c68364b7
LP		 3118 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3119 set_free(runlevel_services[i]);
3120 set_free(shutdown_services);
3121
fbe9f3a9
LP		 3122 if (d)
3123 closedir(d);
2c4104f0
LP		 3124
3125 return r;
3126}
07459bb6 3127#endif
2c4104f0 3128
05e343b7
LP		 3129static void service_bus_name_owner_change(
3130 Unit *u,
3131 const char *name,
3132 const char *old_owner,
3133 const char *new_owner) {
3134
3135 Service *s = SERVICE(u);
3136
3137 assert(s);
3138 assert(name);
3139
3140 assert(streq(s->bus_name, name));
3141 assert(old_owner || new_owner);
3142
3143 if (old_owner && new_owner)
3144 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3145 else if (old_owner)
3146 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3147 else
3148 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3149
3150 s->bus_name_good = !!new_owner;
3151
3152 if (s->type == SERVICE_DBUS) {
3153
3154 /* service_enter_running() will figure out what to
3155 * do */
3156 if (s->state == SERVICE_RUNNING)
3157 service_enter_running(s, true);
3158 else if (s->state == SERVICE_START && new_owner)
3159 service_enter_start_post(s);
3160
3161 } else if (new_owner &&
3162 s->main_pid <= 0 &&
3163 (s->state == SERVICE_START ||
3164 s->state == SERVICE_START_POST ||
3165 s->state == SERVICE_RUNNING ||
3166 s->state == SERVICE_RELOAD)) {
3167
3168 /* Try to acquire PID from bus service */
3169 log_debug("Trying to acquire PID from D-Bus name...");
3170
3171 bus_query_pid(u->meta.manager, name);
3172 }
3173}
3174
3175static void service_bus_query_pid_done(
3176 Unit *u,
3177 const char *name,
3178 pid_t pid) {
3179
3180 Service *s = SERVICE(u);
3181
3182 assert(s);
3183 assert(name);
3184
3185 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3186
3187 if (s->main_pid <= 0 &&
3188 (s->state == SERVICE_START ||
3189 s->state == SERVICE_START_POST ||
3190 s->state == SERVICE_RUNNING ||
3191 s->state == SERVICE_RELOAD))
5925dd3c 3192 service_set_main_pid(s, pid);
05e343b7
LP		 3193}
3194
6cf6bbc2 3195int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3196 assert(s);
3197 assert(fd >= 0);
3198
3199 /* This is called by the socket code when instantiating a new
3200 * service for a stream socket and the socket needs to be
3201 * configured. */
3202
4cd1fbcc 3203 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3204 return -EINVAL;
3205
3206 if (s->socket_fd >= 0)
3207 return -EBUSY;
3208
3209 if (s->state != SERVICE_DEAD)
3210 return -EAGAIN;
3211
3212 s->socket_fd = fd;
701cc384 3213 s->got_socket_fd = true;
f976f3f6 3214 s->accept_socket = sock;
6cf6bbc2 3215
4f2d528d
LP		 3216 return 0;
3217}
3218
fdf20a31 3219static void service_reset_failed(Unit *u) {
5632e374
LP		 3220 Service *s = SERVICE(u);
3221
3222 assert(s);
3223
fdf20a31 3224 if (s->state == SERVICE_FAILED)
5632e374
LP		 3225 service_set_state(s, SERVICE_DEAD);
3226
3227 s->failure = false;
3228}
3229
5f4b19f4
LP		 3230static bool service_need_daemon_reload(Unit *u) {
3231 Service *s = SERVICE(u);
3232
3233 assert(s);
3234
3235#ifdef HAVE_SYSV_COMPAT
3236 if (s->sysv_path) {
3237 struct stat st;
3238
3239 zero(st);
3240 if (stat(s->sysv_path, &st) < 0)
3241 /* What, cannot access this anymore? */
3242 return true;
3243
3244 if (s->sysv_mtime > 0 &&
3245 timespec_load(&st.st_mtim) != s->sysv_mtime)
3246 return true;
3247 }
3248#endif
3249
3250 return false;
3251}
3252
8a0867d6
LP		 3253static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3254 Service *s = SERVICE(u);
3255 int r = 0;
3256 Set *pid_set = NULL;
3257
3258 assert(s);
3259
3260 if (s->main_pid <= 0 && who == KILL_MAIN) {
3261 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3262 return -EINVAL;
3263 }
3264
3265 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3266 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3267 return -ENOENT;
3268 }
3269
3270 if (s->control_pid > 0)
cd25cce9 3271 if (kill(s->control_pid, signo) < 0)
8a0867d6
LP		 3272 r = -errno;
3273
3274 if (s->main_pid > 0)
cd25cce9 3275 if (kill(s->main_pid, signo) < 0)
8a0867d6
LP		 3276 r = -errno;
3277
3278 if (mode == KILL_CONTROL_GROUP) {
3279 int q;
3280
3281 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3282 return -ENOMEM;
3283
3284 /* Exclude the control/main pid from being killed via the cgroup */
3285 if (s->control_pid > 0)
3286 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3287 r = q;
3288 goto finish;
3289 }
3290
3291 if (s->main_pid > 0)
3292 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3293 r = q;
3294 goto finish;
3295 }
3296
430c18ed 3297 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
8a0867d6
LP		 3298 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3299 r = q;
3300 }
3301
3302finish:
3303 if (pid_set)
3304 set_free(pid_set);
3305
3306 return r;
3307}
3308
94f04347
LP		 3309static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3310 [SERVICE_DEAD] = "dead",
3311 [SERVICE_START_PRE] = "start-pre",
3312 [SERVICE_START] = "start",
3313 [SERVICE_START_POST] = "start-post",
3314 [SERVICE_RUNNING] = "running",
80876c20 3315 [SERVICE_EXITED] = "exited",
94f04347
LP		 3316 [SERVICE_RELOAD] = "reload",
3317 [SERVICE_STOP] = "stop",
3318 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3319 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3320 [SERVICE_STOP_POST] = "stop-post",
3321 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3322 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3323 [SERVICE_FAILED] = "failed",
94f04347
LP		 3324 [SERVICE_AUTO_RESTART] = "auto-restart",
3325};
3326
3327DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3328
3329static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3330 [SERVICE_RESTART_NO] = "no",
3331 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3332 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3333 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3334 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3335};
3336
3337DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3338
3339static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3340 [SERVICE_SIMPLE] = "simple",
0d624a78 3341 [SERVICE_FORKING] = "forking",
34e9ba66 3342 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3343 [SERVICE_DBUS] = "dbus",
3344 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3345};
3346
3347DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3348
e537352b 3349static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3350 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3351 [SERVICE_EXEC_START] = "ExecStart",
3352 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3353 [SERVICE_EXEC_RELOAD] = "ExecReload",
3354 [SERVICE_EXEC_STOP] = "ExecStop",
3355 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3356};
3357
3358DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3359
c952c6ec
LP		 3360static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3361 [NOTIFY_NONE] = "none",
3362 [NOTIFY_MAIN] = "main",
3363 [NOTIFY_ALL] = "all"
3364};
3365
3366DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3367
87f0e418 3368const UnitVTable service_vtable = {
5cb5a6ff 3369 .suffix = ".service",
9e58ff9c 3370 .show_status = true,
5cb5a6ff 3371
034c6ed7
LP		 3372 .init = service_init,
3373 .done = service_done,
a16e1123
LP		 3374 .load = service_load,
3375
3376 .coldplug = service_coldplug,
034c6ed7 3377
5cb5a6ff
LP		 3378 .dump = service_dump,
3379
3380 .start = service_start,
3381 .stop = service_stop,
3382 .reload = service_reload,
3383
034c6ed7
LP		 3384 .can_reload = service_can_reload,
3385
8a0867d6
LP		 3386 .kill = service_kill,
3387
a16e1123
LP		 3388 .serialize = service_serialize,
3389 .deserialize_item = service_deserialize_item,
3390
5cb5a6ff 3391 .active_state = service_active_state,
10a94420 3392 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3393
701cc384
LP		 3394 .check_gc = service_check_gc,
3395 .check_snapshot = service_check_snapshot,
3396
034c6ed7
LP		 3397 .sigchld_event = service_sigchld_event,
3398 .timer_event = service_timer_event,
2c4104f0 3399
fdf20a31 3400 .reset_failed = service_reset_failed,
5632e374 3401
5f4b19f4
LP		 3402 .need_daemon_reload = service_need_daemon_reload,
3403
8e274523 3404 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3405 .notify_message = service_notify_message,
8e274523 3406
05e343b7
LP		 3407 .bus_name_owner_change = service_bus_name_owner_change,
3408 .bus_query_pid_done = service_bus_query_pid_done,
3409
c4e2ceae 3410 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3411 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3412 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3413
07459bb6 3414#ifdef HAVE_SYSV_COMPAT
2c4104f0 3415 .enumerate = service_enumerate
07459bb6 3416#endif
5cb5a6ff 3417};
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