]> git.ipfire.org Git - thirdparty/systemd.git/blame - src/service.c
projects / thirdparty / systemd.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
label: udev might be making changes in /dev while we iterate through it
[thirdparty/systemd.git] / src / service.c
CommitLineData
d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
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"
2c4104f0
LP		 38
39#define COMMENTS "#;\n"
40#define NEWLINES "\n\r"
034c6ed7 41
07459bb6 42#ifdef HAVE_SYSV_COMPAT
f34277d9
LP		 43
44#define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
45
09cd1ab1
LP		 46typedef enum RunlevelType {
47 RUNLEVEL_UP,
48 RUNLEVEL_DOWN,
fc5df99e 49 RUNLEVEL_SYSINIT
09cd1ab1
LP		 50} RunlevelType;
51
52static const struct {
53 const char *path;
54 const char *target;
55 const RunlevelType type;
56} rcnd_table[] = {
9d25f5ed 57 /* Standard SysV runlevels for start-up */
514f4ef5 58 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 59 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
60 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
61 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
62 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 63
d4054675 64#ifdef TARGET_SUSE
cfe243e3 65 /* SUSE style boot.d */
fc5df99e 66 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 67#endif
fbe9f3a9 68
f5c88ec1 69#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE)
fbe9f3a9 70 /* Debian style rcS.d */
fc5df99e 71 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 72#endif
9d25f5ed
LP		 73
74 /* Standard SysV runlevels for shutdown */
75 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
76 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
77
78 /* Note that the order here matters, as we read the
79 directories in this order, and we want to make sure that
80 sysv_start_priority is known when we first load the
81 unit. And that value we only know from S links. Hence
82 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 83};
84
09cd1ab1 85#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 86/* #define RUNLEVELS_DOWN "06" */
87/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 88#endif
09cd1ab1 89
acbb0225 90static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 91 [SERVICE_DEAD] = UNIT_INACTIVE,
92 [SERVICE_START_PRE] = UNIT_ACTIVATING,
93 [SERVICE_START] = UNIT_ACTIVATING,
94 [SERVICE_START_POST] = UNIT_ACTIVATING,
95 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 96 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 97 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 98 [SERVICE_STOP] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
101 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
103 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 104 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 105 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 106};
5cb5a6ff 107
a16e1123
LP		 108static void service_init(Unit *u) {
109 Service *s = SERVICE(u);
110
111 assert(u);
112 assert(u->meta.load_state == UNIT_STUB);
113
114 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
115 s->restart_usec = DEFAULT_RESTART_USEC;
116 s->timer_watch.type = WATCH_INVALID;
07459bb6 117#ifdef HAVE_SYSV_COMPAT
a16e1123 118 s->sysv_start_priority = -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
e55224ca
LP		 163 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
164 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
165 s->meta.id, (unsigned long) pid);
166
5925dd3c
LP		 167 s->main_pid = pid;
168 s->main_pid_known = true;
169
b58b4116
LP		 170 exec_status_start(&s->main_exec_status, pid);
171
5925dd3c
LP		 172 return 0;
173}
174
4f2d528d
LP		 175static void service_close_socket_fd(Service *s) {
176 assert(s);
177
178 if (s->socket_fd < 0)
179 return;
180
181 close_nointr_nofail(s->socket_fd);
182 s->socket_fd = -1;
183}
184
6cf6bbc2
LP		 185static void service_connection_unref(Service *s) {
186 assert(s);
187
f976f3f6 188 if (!s->accept_socket)
6cf6bbc2
LP		 189 return;
190
f976f3f6
LP		 191 socket_connection_unref(s->accept_socket);
192 s->accept_socket = NULL;
6cf6bbc2
LP		 193}
194
87f0e418
LP		 195static void service_done(Unit *u) {
196 Service *s = SERVICE(u);
44d8db9e
LP		 197
198 assert(s);
199
200 free(s->pid_file);
201 s->pid_file = NULL;
202
07459bb6 203#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 204 free(s->sysv_path);
205 s->sysv_path = NULL;
206
8309400a
LP		 207 free(s->sysv_runlevels);
208 s->sysv_runlevels = NULL;
07459bb6 209#endif
8309400a 210
8c47c732
LP		 211 free(s->status_text);
212 s->status_text = NULL;
213
44d8db9e 214 exec_context_done(&s->exec_context);
e537352b 215 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 216 s->control_command = NULL;
867b3b7d 217 s->main_command = NULL;
44d8db9e
LP		 218
219 /* This will leak a process, but at least no memory or any of
220 * our resources */
5e94833f
LP		 221 service_unwatch_main_pid(s);
222 service_unwatch_control_pid(s);
44d8db9e 223
05e343b7
LP		 224 if (s->bus_name) {
225 unit_unwatch_bus_name(UNIT(u), s->bus_name);
226 free(s->bus_name);
227 s->bus_name = NULL;
228 }
229
4f2d528d 230 service_close_socket_fd(s);
6cf6bbc2 231 service_connection_unref(s);
4f2d528d 232
f976f3f6
LP		 233 set_free(s->configured_sockets);
234
acbb0225 235 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 236}
237
07459bb6 238#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 239static char *sysv_translate_name(const char *name) {
240 char *r;
241
242 if (!(r = new(char, strlen(name) + sizeof(".service"))))
243 return NULL;
244
5b819198
MB		 245#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
246 if (endswith(name, ".sh"))
247 /* Drop Debian-style .sh suffix */
248 strcpy(stpcpy(r, name) - 3, ".service");
249#endif
250#ifdef TARGET_SUSE
b7ccee3c
LP		 251 if (startswith(name, "boot."))
252 /* Drop SuSE-style boot. prefix */
253 strcpy(stpcpy(r, name + 5), ".service");
5b819198 254#endif
65530632 255#ifdef TARGET_FRUGALWARE
5b819198 256 if (startswith(name, "rc."))
65530632
MV		 257 /* Drop Frugalware-style rc. prefix */
258 strcpy(stpcpy(r, name + 3), ".service");
980900c1 259#endif
b7ccee3c
LP		 260 else
261 /* Normal init scripts */
262 strcpy(stpcpy(r, name), ".service");
263
264 return r;
265}
266
ee95669f 267static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 268
a7d3cc26
LP		 269 /* We silently ignore the $ prefix here. According to the LSB
270 * spec it simply indicates whether something is a
271 * standardized name or a distribution-specific one. Since we
272 * just follow what already exists and do not introduce new
273 * uses or names we don't care who introduced a new name. */
274
2c4104f0 275 static const char * const table[] = {
6464aa08 276 /* LSB defined facilities */
a7d3cc26
LP		 277 "local_fs", SPECIAL_LOCAL_FS_TARGET,
278 "network", SPECIAL_NETWORK_TARGET,
279 "named", SPECIAL_NSS_LOOKUP_TARGET,
280 "portmap", SPECIAL_RPCBIND_TARGET,
281 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
282 "syslog", SPECIAL_SYSLOG_TARGET,
283 "time", SPECIAL_RTC_SET_TARGET,
6464aa08 284
0b603b4e
KS		 285 /* common extensions */
286 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
287 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
288 "null", NULL,
289
858dae18 290#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
a7d3cc26 291 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 292#endif
3177a49c
LP		 293
294#ifdef TARGET_FEDORA
a7d3cc26
LP		 295 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
296 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
297 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 298#endif
a7d3cc26 299
0b603b4e
KS		 300#ifdef TARGET_SUSE
301 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
302#endif
2c4104f0
LP		 303 };
304
305 unsigned i;
306 char *r;
ee95669f 307 const char *n;
2c4104f0 308
ee95669f
LP		 309 assert(name);
310 assert(_r);
a7d3cc26 311
ee95669f 312 n = *name == '$' ? name + 1 : name;
a7d3cc26 313
ee95669f 314 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 315
ee95669f
LP		 316 if (!streq(table[i], n))
317 continue;
2c4104f0 318
ee95669f
LP		 319 if (!table[i+1])
320 return 0;
321
322 if (!(r = strdup(table[i+1])))
323 return -ENOMEM;
324
325 goto finish;
326 }
2c4104f0 327
a7d3cc26 328 /* If we don't know this name, fallback heuristics to figure
0003d1ab 329 * out whether something is a target or a service alias. */
a7d3cc26 330
e83c7c0b
LP		 331 if (*name == '$') {
332 if (!unit_prefix_is_valid(n))
333 return -EINVAL;
334
ee95669f
LP		 335 /* Facilities starting with $ are most likely targets */
336 r = unit_name_build(n, NULL, ".target");
e83c7c0b 337 } else if (filename && streq(name, filename))
ee95669f
LP		 338 /* Names equalling the file name of the services are redundant */
339 return 0;
32159d3a 340 else
ee95669f
LP		 341 /* Everything else we assume to be normal service names */
342 r = sysv_translate_name(n);
2c4104f0 343
32159d3a 344 if (!r)
2c4104f0
LP		 345 return -ENOMEM;
346
347finish:
348
349 if (_r)
350 *_r = r;
351
352 return 1;
353}
354
56d748b4 355static int sysv_fix_order(Service *s) {
2c4104f0
LP		 356 Meta *other;
357 int r;
358
359 assert(s);
360
361 if (s->sysv_start_priority < 0)
362 return 0;
363
23a177ef
LP		 364 /* For each pair of services where at least one lacks a LSB
365 * header, we use the start priority value to order things. */
2c4104f0 366
4cd1fbcc 367 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 368 Service *t;
369 UnitDependency d;
eeaafddc 370 bool special_s, special_t;
2c4104f0
LP		 371
372 t = (Service*) other;
373
374 if (s == t)
375 continue;
9f151f29
LP		 376
377 if (t->meta.load_state != UNIT_LOADED)
378 continue;
2c4104f0
LP		 379
380 if (t->sysv_start_priority < 0)
381 continue;
382
51a1a79d
LP		 383 /* If both units have modern headers we don't care
384 * about the priorities */
f21781d5
LP		 385 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
386 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 387 continue;
388
eeaafddc
LP		 389 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
390 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
391
392 if (special_t && !special_s)
393 d = UNIT_AFTER;
394 else if (special_s && !special_t)
395 d = UNIT_BEFORE;
396 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 397 d = UNIT_AFTER;
398 else if (t->sysv_start_priority > s->sysv_start_priority)
399 d = UNIT_BEFORE;
400 else
401 continue;
402
403 /* FIXME: Maybe we should compare the name here lexicographically? */
404
701cc384 405 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 406 return r;
407 }
408
409 return 0;
410}
411
412static ExecCommand *exec_command_new(const char *path, const char *arg1) {
413 ExecCommand *c;
414
415 if (!(c = new0(ExecCommand, 1)))
416 return NULL;
417
418 if (!(c->path = strdup(path))) {
419 free(c);
420 return NULL;
421 }
422
423 if (!(c->argv = strv_new(path, arg1, NULL))) {
424 free(c->path);
425 free(c);
426 return NULL;
427 }
428
429 return c;
430}
431
432static int sysv_exec_commands(Service *s) {
433 ExecCommand *c;
434
435 assert(s);
436 assert(s->sysv_path);
437
438 if (!(c = exec_command_new(s->sysv_path, "start")))
439 return -ENOMEM;
440 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
441
442 if (!(c = exec_command_new(s->sysv_path, "stop")))
443 return -ENOMEM;
444 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
445
446 if (!(c = exec_command_new(s->sysv_path, "reload")))
447 return -ENOMEM;
448 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
449
450 return 0;
451}
452
e537352b 453static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 454 FILE *f;
455 Unit *u;
456 unsigned line = 0;
457 int r;
458 enum {
459 NORMAL,
460 DESCRIPTION,
461 LSB,
462 LSB_DESCRIPTION
463 } state = NORMAL;
0b5d26f9 464 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 465
466 assert(s);
467 assert(path);
2c4104f0
LP		 468
469 u = UNIT(s);
470
471 if (!(f = fopen(path, "re"))) {
472 r = errno == ENOENT ? 0 : -errno;
473 goto finish;
474 }
475
2c4104f0
LP		 476 free(s->sysv_path);
477 if (!(s->sysv_path = strdup(path))) {
478 r = -ENOMEM;
479 goto finish;
480 }
481
482 while (!feof(f)) {
483 char l[LINE_MAX], *t;
484
485 if (!fgets(l, sizeof(l), f)) {
486 if (feof(f))
487 break;
488
489 r = -errno;
490 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
491 goto finish;
492 }
493
494 line++;
495
496 t = strstrip(l);
497 if (*t != '#')
498 continue;
499
500 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
501 state = LSB;
23a177ef 502 s->sysv_has_lsb = true;
2c4104f0
LP		 503 continue;
504 }
505
506 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
507 state = NORMAL;
508 continue;
509 }
510
511 t++;
512 t += strspn(t, WHITESPACE);
513
514 if (state == NORMAL) {
515
516 /* Try to parse Red Hat style chkconfig headers */
517
c2b35af6 518 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 519 int start_priority;
8309400a 520 char runlevels[16], *k;
2c4104f0
LP		 521
522 state = NORMAL;
523
8309400a
LP		 524 if (sscanf(t+10, "%15s %i %*i",
525 runlevels,
526 &start_priority) != 2) {
2c4104f0
LP		 527
528 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
529 continue;
530 }
531
fbe9f3a9
LP		 532 /* A start priority gathered from the
533 * symlink farms is preferred over the
534 * data from the LSB header. */
8309400a 535 if (start_priority < 0 || start_priority > 99)
2c4104f0 536 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 537 else if (s->sysv_start_priority < 0)
8309400a
LP		 538 s->sysv_start_priority = start_priority;
539
540 char_array_0(runlevels);
541 k = delete_chars(runlevels, WHITESPACE "-");
542
543 if (k[0]) {
544 char *d;
545
546 if (!(d = strdup(k))) {
547 r = -ENOMEM;
548 goto finish;
549 }
550
551 free(s->sysv_runlevels);
552 s->sysv_runlevels = d;
2c4104f0
LP		 553 }
554
0b5d26f9 555 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 556
557 size_t k = strlen(t);
558 char *d;
0b5d26f9 559 const char *j;
2c4104f0
LP		 560
561 if (t[k-1] == '\\') {
562 state = DESCRIPTION;
563 t[k-1] = 0;
564 }
565
0b5d26f9
LP		 566 if ((j = strstrip(t+12)) && *j) {
567 if (!(d = strdup(j))) {
568 r = -ENOMEM;
569 goto finish;
570 }
571 } else
572 d = NULL;
2c4104f0 573
0b5d26f9
LP		 574 free(chkconfig_description);
575 chkconfig_description = d;
2c4104f0 576
c2b35af6 577 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 578
579 char *fn;
580
581 state = NORMAL;
582
583 fn = strstrip(t+8);
584 if (!path_is_absolute(fn)) {
585 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
586 continue;
587 }
588
589 if (!(fn = strdup(fn))) {
590 r = -ENOMEM;
591 goto finish;
592 }
593
594 free(s->pid_file);
595 s->pid_file = fn;
596 }
597
598 } else if (state == DESCRIPTION) {
599
600 /* Try to parse Red Hat style description
601 * continuation */
602
603 size_t k = strlen(t);
0b5d26f9 604 char *j;
2c4104f0
LP		 605
606 if (t[k-1] == '\\')
607 t[k-1] = 0;
608 else
609 state = NORMAL;
610
0b5d26f9
LP		 611 if ((j = strstrip(t)) && *j) {
612 char *d = NULL;
613
614 if (chkconfig_description)
615 asprintf(&d, "%s %s", chkconfig_description, j);
616 else
617 d = strdup(j);
2c4104f0 618
0b5d26f9
LP		 619 if (!d) {
620 r = -ENOMEM;
621 goto finish;
622 }
623
624 free(chkconfig_description);
625 chkconfig_description = d;
626 }
2c4104f0
LP		 627
628 } else if (state == LSB || state == LSB_DESCRIPTION) {
629
c2b35af6 630 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 631 char *i, *w;
632 size_t z;
633
634 state = LSB;
635
f60f22df 636 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 637 char *n, *m;
638
639 if (!(n = strndup(w, z))) {
640 r = -ENOMEM;
641 goto finish;
642 }
643
ee95669f 644 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 645 free(n);
646
647 if (r < 0)
648 goto finish;
649
650 if (r == 0)
651 continue;
652
bd77d0fc
LP		 653 if (unit_name_to_type(m) == UNIT_SERVICE)
654 r = unit_add_name(u, m);
c68364b7
LP		 655 else {
656 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
657
658 if (s->sysv_enabled) {
659 int k;
660
661 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
662 r = k;
663 }
664 }
bd77d0fc 665
2c4104f0 666 if (r < 0)
43a37549 667 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 668
669 free(m);
2c4104f0
LP		 670 }
671
c2b35af6
LP		 672 } else if (startswith_no_case(t, "Required-Start:") ||
673 startswith_no_case(t, "Should-Start:") ||
674 startswith_no_case(t, "X-Start-Before:") ||
675 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 676 char *i, *w;
677 size_t z;
678
679 state = LSB;
680
f60f22df 681 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 682 char *n, *m;
683
684 if (!(n = strndup(w, z))) {
685 r = -ENOMEM;
686 goto finish;
687 }
688
ee95669f 689 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 690
e83c7c0b
LP		 691 if (r < 0) {
692 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
693 free(n);
694 continue;
695 }
696
697 free(n);
2c4104f0
LP		 698
699 if (r == 0)
700 continue;
701
c2b35af6 702 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 703
704 if (r < 0)
43a37549 705 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 706
707 free(m);
2c4104f0 708 }
c2b35af6 709 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 710 char *k, *d;
711
712 state = LSB;
713
714 k = delete_chars(t+14, WHITESPACE "-");
715
716 if (k[0] != 0) {
717 if (!(d = strdup(k))) {
718 r = -ENOMEM;
719 goto finish;
720 }
721
722 free(s->sysv_runlevels);
723 s->sysv_runlevels = d;
724 }
2c4104f0 725
0b5d26f9
LP		 726 } else if (startswith_no_case(t, "Description:")) {
727 char *d, *j;
ed4c1cc6 728
2c4104f0
LP		 729 state = LSB_DESCRIPTION;
730
0b5d26f9
LP		 731 if ((j = strstrip(t+12)) && *j) {
732 if (!(d = strdup(j))) {
733 r = -ENOMEM;
734 goto finish;
735 }
736 } else
737 d = NULL;
2c4104f0 738
0b5d26f9
LP		 739 free(long_description);
740 long_description = d;
2c4104f0 741
ed4c1cc6 742 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 743 char *d, *j;
2c4104f0 744
2c4104f0
LP		 745 state = LSB;
746
0b5d26f9
LP		 747 if ((j = strstrip(t+18)) && *j) {
748 if (!(d = strdup(j))) {
749 r = -ENOMEM;
750 goto finish;
751 }
752 } else
753 d = NULL;
2c4104f0 754
0b5d26f9
LP		 755 free(short_description);
756 short_description = d;
2c4104f0 757
723c83fd
LP		 758 } else if (startswith_no_case(t, "X-Interactive:")) {
759 int b;
760
761 if ((b = parse_boolean(strstrip(t+14))) < 0) {
762 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
763 continue;
764 }
765
766 if (b)
767 s->exec_context.std_input = EXEC_INPUT_TTY;
768 else
769 s->exec_context.std_input = EXEC_INPUT_NULL;
770
2c4104f0
LP		 771 } else if (state == LSB_DESCRIPTION) {
772
773 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 774 char *j;
2c4104f0 775
0b5d26f9
LP		 776 if ((j = strstrip(t)) && *j) {
777 char *d = NULL;
778
779 if (long_description)
780 asprintf(&d, "%s %s", long_description, t);
781 else
782 d = strdup(j);
783
784 if (!d) {
785 r = -ENOMEM;
786 goto finish;
787 }
788
789 free(long_description);
790 long_description = d;
2c4104f0
LP		 791 }
792
2c4104f0
LP		 793 } else
794 state = LSB;
795 }
796 }
797 }
798
2c4104f0
LP		 799 if ((r = sysv_exec_commands(s)) < 0)
800 goto finish;
801
a40eb732 802 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 803 /* If there a runlevels configured for this service
804 * but none of the standard ones, then we assume this
805 * is some special kind of service (which might be
806 * needed for early boot) and don't create any links
807 * to it. */
808
a40eb732 809 s->meta.default_dependencies = false;
09cd1ab1 810
09cd1ab1
LP		 811 /* Don't timeout special services during boot (like fsck) */
812 s->timeout_usec = 0;
f34277d9
LP		 813 } else
814 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 815
80876c20 816 /* Special setting for all SysV services */
1f48cf56 817 s->type = SERVICE_FORKING;
02ee865a 818 s->remain_after_exit = true;
525ee6f4 819 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 820 s->exec_context.std_output =
821 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
0a494f1f 822 ? EXEC_OUTPUT_TTY : s->meta.manager->default_std_output;
2e22afe9 823 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 824
0b5d26f9
LP		 825 /* We use the long description only if
826 * no short description is set. */
827
828 if (short_description)
829 description = short_description;
830 else if (chkconfig_description)
831 description = chkconfig_description;
832 else if (long_description)
833 description = long_description;
834 else
835 description = NULL;
836
837 if (description) {
838 char *d;
839
840 if (!(d = strappend("LSB: ", description))) {
841 r = -ENOMEM;
842 goto finish;
843 }
844
845 u->meta.description = d;
846 }
847
e537352b 848 u->meta.load_state = UNIT_LOADED;
23a177ef 849 r = 0;
2c4104f0
LP		 850
851finish:
852
853 if (f)
854 fclose(f);
855
0b5d26f9
LP		 856 free(short_description);
857 free(long_description);
858 free(chkconfig_description);
859
2c4104f0
LP		 860 return r;
861}
862
e537352b 863static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 864 char **p;
865
866 assert(s);
867 assert(name);
868
e1992852 869 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 870 * prefixes/suffixes. */
5b819198
MB		 871#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
872 if (endswith(name, ".sh.service"))
d017c6ca 873 return -ENOENT;
5b819198
MB		 874#endif
875
876#ifdef TARGET_SUSE
877 if (startswith(name, "boot."))
878 return -ENOENT;
879#endif
880
881#ifdef TARGET_FRUGALWARE
882 if (startswith(name, "rc."))
883 return -ENOENT;
884#endif
d017c6ca 885
4cd1fbcc 886 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 887 char *path;
888 int r;
889
890 if (asprintf(&path, "%s/%s", *p, name) < 0)
891 return -ENOMEM;
892
893 assert(endswith(path, ".service"));
894 path[strlen(path)-8] = 0;
895
e537352b 896 r = service_load_sysv_path(s, path);
fbe9f3a9 897
e1992852 898#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
4cd1fbcc 899 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 900 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 901 strcat(path, ".sh");
902 r = service_load_sysv_path(s, path);
903 }
e1992852 904#endif
2c4104f0
LP		 905 free(path);
906
e1992852 907#ifdef TARGET_SUSE
4cd1fbcc 908 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 909 /* Try SUSE style boot.* init scripts */
fbe9f3a9
LP		 910
911 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
912 return -ENOMEM;
913
e1992852 914 /* Drop .service suffix */
fbe9f3a9
LP		 915 path[strlen(path)-8] = 0;
916 r = service_load_sysv_path(s, path);
917 free(path);
918 }
e1992852 919#endif
fbe9f3a9 920
e1992852 921#ifdef TARGET_FRUGALWARE
65530632 922 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 923 /* Try Frugalware style rc.* init scripts */
65530632
MV		 924
925 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
926 return -ENOMEM;
927
e1992852 928 /* Drop .service suffix */
65530632
MV		 929 path[strlen(path)-8] = 0;
930 r = service_load_sysv_path(s, path);
931 free(path);
932 }
e1992852 933#endif
65530632 934
23a177ef 935 if (r < 0)
2c4104f0 936 return r;
23a177ef 937
4cd1fbcc 938 if ((s->meta.load_state != UNIT_STUB))
23a177ef 939 break;
2c4104f0
LP		 940 }
941
942 return 0;
943}
944
e537352b 945static int service_load_sysv(Service *s) {
2c4104f0
LP		 946 const char *t;
947 Iterator i;
948 int r;
949
5cb5a6ff
LP		 950 assert(s);
951
952 /* Load service data from SysV init scripts, preferably with
953 * LSB headers ... */
954
4cd1fbcc 955 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 956 return 0;
957
4cd1fbcc 958 if ((t = s->meta.id))
e537352b 959 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 960 return r;
961
4cd1fbcc
LP		 962 if (s->meta.load_state == UNIT_STUB)
963 SET_FOREACH(t, s->meta.names, i) {
964 if (t == s->meta.id)
e537352b
LP		 965 continue;
966
e364ad06 967 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 968 return r;
969
4cd1fbcc 970 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 971 break;
972 }
2c4104f0
LP		 973
974 return 0;
5cb5a6ff 975}
07459bb6 976#endif
5cb5a6ff 977
9fff8a1f
LP		 978static int fsck_fix_order(Service *s) {
979 Meta *other;
980 int r;
981
982 assert(s);
983
984 if (s->fsck_passno <= 0)
985 return 0;
986
987 /* For each pair of services where both have an fsck priority
988 * we order things based on it. */
989
990 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
991 Service *t;
992 UnitDependency d;
993
994 t = (Service*) other;
995
996 if (s == t)
997 continue;
998
999 if (t->meta.load_state != UNIT_LOADED)
1000 continue;
1001
1002 if (t->fsck_passno <= 0)
1003 continue;
1004
1005 if (t->fsck_passno < s->fsck_passno)
1006 d = UNIT_AFTER;
1007 else if (t->fsck_passno > s->fsck_passno)
1008 d = UNIT_BEFORE;
1009 else
1010 continue;
1011
1012 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1013 return r;
1014 }
1015
1016 return 0;
1017}
1018
243b1432
LP		 1019static int service_verify(Service *s) {
1020 assert(s);
1021
4cd1fbcc 1022 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1023 return 0;
1024
1025 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1026 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1027 return -EINVAL;
1028 }
1029
34e9ba66
LP		 1030 if (s->type != SERVICE_ONESHOT &&
1031 s->exec_command[SERVICE_EXEC_START]->command_next) {
1032 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1033 return -EINVAL;
1034 }
1035
c06b7a15
LP		 1036 if (s->type == SERVICE_ONESHOT &&
1037 s->exec_command[SERVICE_EXEC_RELOAD]) {
1038 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1039 return -EINVAL;
1040 }
1041
05e343b7 1042 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1043 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1044 return -EINVAL;
1045 }
1046
2e22afe9 1047 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1048 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1049 return -EINVAL;
1050 }
1051
243b1432
LP		 1052 return 0;
1053}
1054
a40eb732
LP		 1055static int service_add_default_dependencies(Service *s) {
1056 int r;
1057
1058 assert(s);
1059
1060 /* Add a number of automatic dependencies useful for the
1061 * majority of services. */
1062
1063 /* First, pull in base system */
1064 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1065
1066 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1067 return r;
1068
af2d49f7 1069 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1070
1071 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1072 return r;
1073 }
1074
1075 /* Second, activate normal shutdown */
ead8e478 1076 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1077}
1078
e537352b
LP		 1079static int service_load(Unit *u) {
1080 int r;
1081 Service *s = SERVICE(u);
1082
1083 assert(s);
1e2e8133 1084
5cb5a6ff 1085 /* Load a .service file */
e537352b 1086 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1087 return r;
1088
07459bb6 1089#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1090 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1091 if (u->meta.load_state == UNIT_STUB)
1092 if ((r = service_load_sysv(s)) < 0)
23a177ef 1093 return r;
07459bb6 1094#endif
d46de8a1 1095
23a177ef 1096 /* Still nothing found? Then let's give up */
e537352b 1097 if (u->meta.load_state == UNIT_STUB)
23a177ef 1098 return -ENOENT;
034c6ed7 1099
23a177ef
LP		 1100 /* We were able to load something, then let's add in the
1101 * dropin directories. */
1102 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1103 return r;
23a177ef
LP		 1104
1105 /* This is a new unit? Then let's add in some extras */
e537352b 1106 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1107 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1108 return r;
1109
d686d8a9 1110 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1111 return r;
1112
07459bb6 1113#ifdef HAVE_SYSV_COMPAT
56d748b4 1114 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1115 return r;
07459bb6 1116#endif
05e343b7 1117
9fff8a1f
LP		 1118 if ((r = fsck_fix_order(s)) < 0)
1119 return r;
1120
ee0dd802 1121 if (s->bus_name)
05e343b7 1122 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1123 return r;
c952c6ec
LP		 1124
1125 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1126 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1127
1128 if (s->type == SERVICE_DBUS || s->bus_name)
1129 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1130 return r;
1131
1132 if (s->meta.default_dependencies)
1133 if ((r = service_add_default_dependencies(s)) < 0)
1134 return r;
8e274523
LP		 1135 }
1136
243b1432 1137 return service_verify(s);
034c6ed7
LP		 1138}
1139
87f0e418 1140static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1141
5cb5a6ff 1142 ServiceExecCommand c;
87f0e418 1143 Service *s = SERVICE(u);
47be870b
LP		 1144 const char *prefix2;
1145 char *p2;
5cb5a6ff
LP		 1146
1147 assert(s);
1148
47be870b
LP		 1149 p2 = strappend(prefix, "\t");
1150 prefix2 = p2 ? p2 : prefix;
44d8db9e 1151
5cb5a6ff 1152 fprintf(f,
81a2b7ce
LP		 1153 "%sService State: %s\n"
1154 "%sPermissionsStartOnly: %s\n"
8e274523 1155 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1156 "%sRemainAfterExit: %s\n"
3185a36b 1157 "%sGuessMainPID: %s\n"
c952c6ec 1158 "%sType: %s\n"
2cf3143a 1159 "%sRestart: %s\n"
c952c6ec 1160 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1161 prefix, service_state_to_string(s->state),
1162 prefix, yes_no(s->permissions_start_only),
8e274523 1163 prefix, yes_no(s->root_directory_start_only),
02ee865a 1164 prefix, yes_no(s->remain_after_exit),
3185a36b 1165 prefix, yes_no(s->guess_main_pid),
c952c6ec 1166 prefix, service_type_to_string(s->type),
2cf3143a 1167 prefix, service_restart_to_string(s->restart),
c952c6ec 1168 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1169
70123e68
LP		 1170 if (s->control_pid > 0)
1171 fprintf(f,
bb00e604
LP		 1172 "%sControl PID: %lu\n",
1173 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1174
1175 if (s->main_pid > 0)
1176 fprintf(f,
bb00e604
LP		 1177 "%sMain PID: %lu\n",
1178 prefix, (unsigned long) s->main_pid);
70123e68 1179
034c6ed7
LP		 1180 if (s->pid_file)
1181 fprintf(f,
1182 "%sPIDFile: %s\n",
1183 prefix, s->pid_file);
1184
05e343b7
LP		 1185 if (s->bus_name)
1186 fprintf(f,
1187 "%sBusName: %s\n"
1188 "%sBus Name Good: %s\n",
1189 prefix, s->bus_name,
1190 prefix, yes_no(s->bus_name_good));
1191
5cb5a6ff
LP		 1192 exec_context_dump(&s->exec_context, f, prefix);
1193
e537352b 1194 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1195
44d8db9e
LP		 1196 if (!s->exec_command[c])
1197 continue;
1198
40d50879 1199 fprintf(f, "%s-> %s:\n",
94f04347 1200 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1201
1202 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1203 }
44d8db9e 1204
07459bb6 1205#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1206 if (s->sysv_path)
1207 fprintf(f,
23a177ef 1208 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1209 "%sSysV Init Script has LSB Header: %s\n"
1210 "%sSysVEnabled: %s\n",
23a177ef 1211 prefix, s->sysv_path,
9fff8a1f
LP		 1212 prefix, yes_no(s->sysv_has_lsb),
1213 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1214
1215 if (s->sysv_start_priority >= 0)
1216 fprintf(f,
9fff8a1f
LP		 1217 "%sSysVStartPriority: %i\n",
1218 prefix, s->sysv_start_priority);
2c4104f0 1219
8309400a
LP		 1220 if (s->sysv_runlevels)
1221 fprintf(f, "%sSysVRunLevels: %s\n",
1222 prefix, s->sysv_runlevels);
07459bb6 1223#endif
23a177ef 1224
9fff8a1f
LP		 1225 if (s->fsck_passno > 0)
1226 fprintf(f,
1227 "%sFsckPassNo: %i\n",
1228 prefix, s->fsck_passno);
1229
8c47c732
LP		 1230 if (s->status_text)
1231 fprintf(f, "%sStatus Text: %s\n",
1232 prefix, s->status_text);
1233
47be870b 1234 free(p2);
5cb5a6ff
LP		 1235}
1236
034c6ed7
LP		 1237static int service_load_pid_file(Service *s) {
1238 char *k;
034c6ed7 1239 int r;
5925dd3c 1240 pid_t pid;
034c6ed7
LP		 1241
1242 assert(s);
1243
034c6ed7
LP		 1244 if (!s->pid_file)
1245 return -ENOENT;
1246
1247 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1248 return r;
1249
5925dd3c
LP		 1250 r = parse_pid(k, &pid);
1251 free(k);
034c6ed7 1252
5925dd3c
LP		 1253 if (r < 0)
1254 return r;
406eaf93 1255
5925dd3c
LP		 1256 if (kill(pid, 0) < 0 && errno != EPERM) {
1257 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1258 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1259 return -ESRCH;
1260 }
1261
5925dd3c 1262 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1263 return r;
1264
5925dd3c
LP		 1265 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1266 /* FIXME: we need to do something here */
1267 return r;
034c6ed7
LP		 1268
1269 return 0;
1270}
1271
4fbf50b3
LP		 1272static int service_search_main_pid(Service *s) {
1273 pid_t pid;
1274 int r;
1275
1276 assert(s);
1277
3185a36b
LP		 1278 /* If we know it anyway, don't ever fallback to unreliable
1279 * heuristics */
4fbf50b3
LP		 1280 if (s->main_pid_known)
1281 return 0;
1282
3185a36b
LP		 1283 if (!s->guess_main_pid)
1284 return 0;
1285
4fbf50b3
LP		 1286 assert(s->main_pid <= 0);
1287
1288 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1289 return -ENOENT;
1290
1291 if ((r = service_set_main_pid(s, pid)) < 0)
1292 return r;
1293
1294 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1295 /* FIXME: we need to do something here */
1296 return r;
1297
1298 return 0;
1299}
1300
3e33402a
LP		 1301static int service_get_sockets(Service *s, Set **_set) {
1302 Set *set;
ceee3d82
LP		 1303 Iterator i;
1304 char *t;
3e33402a 1305 int r;
ceee3d82
LP		 1306
1307 assert(s);
3e33402a
LP		 1308 assert(_set);
1309
6cf6bbc2
LP		 1310 if (s->socket_fd >= 0)
1311 return 0;
1312
f976f3f6
LP		 1313 if (!set_isempty(s->configured_sockets))
1314 return 0;
1315
3e33402a
LP		 1316 /* Collects all Socket objects that belong to this
1317 * service. Note that a service might have multiple sockets
1318 * via multiple names. */
1319
1320 if (!(set = set_new(NULL, NULL)))
1321 return -ENOMEM;
ceee3d82 1322
4cd1fbcc 1323 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1324 char *k;
1325 Unit *p;
1326
1327 /* Look for all socket objects that go by any of our
1328 * units and collect their fds */
1329
3e33402a
LP		 1330 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1331 r = -ENOMEM;
1332 goto fail;
1333 }
ceee3d82 1334
4cd1fbcc 1335 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1336 free(k);
1337
8d567588
LP		 1338 if (!p)
1339 continue;
ceee3d82 1340
3e33402a
LP		 1341 if ((r = set_put(set, p)) < 0)
1342 goto fail;
ceee3d82
LP		 1343 }
1344
3e33402a
LP		 1345 *_set = set;
1346 return 0;
1347
1348fail:
1349 set_free(set);
1350 return r;
1351}
1352
e537352b 1353static int service_notify_sockets_dead(Service *s) {
3e33402a 1354 Iterator i;
f976f3f6 1355 Set *set, *free_set = NULL;
47be870b 1356 Socket *sock;
3e33402a
LP		 1357 int r;
1358
1359 assert(s);
1360
f976f3f6
LP		 1361 /* Notifies all our sockets when we die */
1362
6cf6bbc2
LP		 1363 if (s->socket_fd >= 0)
1364 return 0;
1365
f976f3f6
LP		 1366 if (!set_isempty(s->configured_sockets))
1367 set = s->configured_sockets;
1368 else {
1369 if ((r = service_get_sockets(s, &free_set)) < 0)
1370 return r;
1371
1372 set = free_set;
1373 }
3e33402a 1374
47be870b
LP		 1375 SET_FOREACH(sock, set, i)
1376 socket_notify_service_dead(sock);
3e33402a 1377
f976f3f6 1378 set_free(free_set);
3e33402a 1379
ceee3d82
LP		 1380 return 0;
1381}
1382
034c6ed7
LP		 1383static void service_set_state(Service *s, ServiceState state) {
1384 ServiceState old_state;
5cb5a6ff
LP		 1385 assert(s);
1386
034c6ed7 1387 old_state = s->state;
5cb5a6ff 1388 s->state = state;
034c6ed7
LP		 1389
1390 if (state != SERVICE_START_PRE &&
1391 state != SERVICE_START &&
1392 state != SERVICE_START_POST &&
1393 state != SERVICE_RELOAD &&
1394 state != SERVICE_STOP &&
1395 state != SERVICE_STOP_SIGTERM &&
1396 state != SERVICE_STOP_SIGKILL &&
1397 state != SERVICE_STOP_POST &&
1398 state != SERVICE_FINAL_SIGTERM &&
1399 state != SERVICE_FINAL_SIGKILL &&
1400 state != SERVICE_AUTO_RESTART)
acbb0225 1401 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1402
7d55e835
LP		 1403 if (state != SERVICE_START &&
1404 state != SERVICE_START_POST &&
034c6ed7
LP		 1405 state != SERVICE_RUNNING &&
1406 state != SERVICE_RELOAD &&
1407 state != SERVICE_STOP &&
1408 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1409 state != SERVICE_STOP_SIGKILL) {
5e94833f 1410 service_unwatch_main_pid(s);
867b3b7d
LP		 1411 s->main_command = NULL;
1412 }
034c6ed7
LP		 1413
1414 if (state != SERVICE_START_PRE &&
1415 state != SERVICE_START &&
1416 state != SERVICE_START_POST &&
1417 state != SERVICE_RELOAD &&
1418 state != SERVICE_STOP &&
1419 state != SERVICE_STOP_SIGTERM &&
1420 state != SERVICE_STOP_SIGKILL &&
1421 state != SERVICE_STOP_POST &&
1422 state != SERVICE_FINAL_SIGTERM &&
e537352b 1423 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1424 service_unwatch_control_pid(s);
034c6ed7 1425 s->control_command = NULL;
a16e1123 1426 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1427 }
034c6ed7 1428
ceee3d82
LP		 1429 if (state == SERVICE_DEAD ||
1430 state == SERVICE_STOP ||
1431 state == SERVICE_STOP_SIGTERM ||
1432 state == SERVICE_STOP_SIGKILL ||
1433 state == SERVICE_STOP_POST ||
1434 state == SERVICE_FINAL_SIGTERM ||
1435 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1436 state == SERVICE_FAILED ||
ceee3d82 1437 state == SERVICE_AUTO_RESTART)
e537352b 1438 service_notify_sockets_dead(s);
ceee3d82 1439
4f2d528d
LP		 1440 if (state != SERVICE_START_PRE &&
1441 state != SERVICE_START &&
6cf6bbc2
LP		 1442 state != SERVICE_START_POST &&
1443 state != SERVICE_RUNNING &&
1444 state != SERVICE_RELOAD &&
1445 state != SERVICE_STOP &&
1446 state != SERVICE_STOP_SIGTERM &&
1447 state != SERVICE_STOP_SIGKILL &&
1448 state != SERVICE_STOP_POST &&
1449 state != SERVICE_FINAL_SIGTERM &&
1450 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1451 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1452 service_close_socket_fd(s);
6cf6bbc2
LP		 1453 service_connection_unref(s);
1454 }
4f2d528d 1455
f6023656
LP		 1456 /* For the inactive states unit_notify() will trim the cgroup,
1457 * but for exit we have to do that ourselves... */
1458 if (state == SERVICE_EXITED)
1459 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1460
e537352b 1461 if (old_state != state)
4cd1fbcc 1462 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1463
e2f3b44c
LP		 1464 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1465 s->reload_failure = false;
034c6ed7
LP		 1466}
1467
a16e1123
LP		 1468static int service_coldplug(Unit *u) {
1469 Service *s = SERVICE(u);
1470 int r;
1471
1472 assert(s);
1473 assert(s->state == SERVICE_DEAD);
1474
1475 if (s->deserialized_state != s->state) {
1476
1477 if (s->deserialized_state == SERVICE_START_PRE ||
1478 s->deserialized_state == SERVICE_START ||
1479 s->deserialized_state == SERVICE_START_POST ||
1480 s->deserialized_state == SERVICE_RELOAD ||
1481 s->deserialized_state == SERVICE_STOP ||
1482 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1483 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1484 s->deserialized_state == SERVICE_STOP_POST ||
1485 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1486 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1487 s->deserialized_state == SERVICE_AUTO_RESTART) {
1488
1489 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1490 usec_t k;
1491
1492 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1493
1494 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1495 return r;
1496 }
1497 }
a16e1123
LP		 1498
1499 if ((s->deserialized_state == SERVICE_START &&
1500 (s->type == SERVICE_FORKING ||
8c47c732 1501 s->type == SERVICE_DBUS ||
34e9ba66 1502 s->type == SERVICE_ONESHOT ||
8c47c732 1503 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1504 s->deserialized_state == SERVICE_START_POST ||
1505 s->deserialized_state == SERVICE_RUNNING ||
1506 s->deserialized_state == SERVICE_RELOAD ||
1507 s->deserialized_state == SERVICE_STOP ||
1508 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1509 s->deserialized_state == SERVICE_STOP_SIGKILL)
1510 if (s->main_pid > 0)
1511 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1512 return r;
1513
1514 if (s->deserialized_state == SERVICE_START_PRE ||
1515 s->deserialized_state == SERVICE_START ||
1516 s->deserialized_state == SERVICE_START_POST ||
1517 s->deserialized_state == SERVICE_RELOAD ||
1518 s->deserialized_state == SERVICE_STOP ||
1519 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1520 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1521 s->deserialized_state == SERVICE_STOP_POST ||
1522 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1523 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1524 if (s->control_pid > 0)
1525 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1526 return r;
1527
1528 service_set_state(s, s->deserialized_state);
1529 }
1530
1531 return 0;
1532}
1533
44d8db9e
LP		 1534static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1535 Iterator i;
1536 int r;
1537 int *rfds = NULL;
1538 unsigned rn_fds = 0;
f976f3f6 1539 Set *set, *free_set = NULL;
47be870b 1540 Socket *sock;
44d8db9e
LP		 1541
1542 assert(s);
1543 assert(fds);
1544 assert(n_fds);
1545
6cf6bbc2
LP		 1546 if (s->socket_fd >= 0)
1547 return 0;
1548
f976f3f6
LP		 1549 if (!set_isempty(s->configured_sockets))
1550 set = s->configured_sockets;
1551 else {
1552 if ((r = service_get_sockets(s, &free_set)) < 0)
1553 return r;
1554
1555 set = free_set;
1556 }
3e33402a 1557
47be870b 1558 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1559 int *cfds;
1560 unsigned cn_fds;
1561
47be870b 1562 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1563 goto fail;
1564
1565 if (!cfds)
1566 continue;
1567
1568 if (!rfds) {
1569 rfds = cfds;
1570 rn_fds = cn_fds;
1571 } else {
1572 int *t;
1573
1574 if (!(t = new(int, rn_fds+cn_fds))) {
1575 free(cfds);
1576 r = -ENOMEM;
1577 goto fail;
1578 }
1579
1580 memcpy(t, rfds, rn_fds);
1581 memcpy(t+rn_fds, cfds, cn_fds);
1582 free(rfds);
1583 free(cfds);
1584
1585 rfds = t;
1586 rn_fds = rn_fds+cn_fds;
1587 }
1588 }
1589
1590 *fds = rfds;
1591 *n_fds = rn_fds;
3e33402a 1592
f976f3f6 1593 set_free(free_set);
3e33402a 1594
44d8db9e
LP		 1595 return 0;
1596
1597fail:
3e33402a 1598 set_free(set);
44d8db9e 1599 free(rfds);
3e33402a 1600
44d8db9e
LP		 1601 return r;
1602}
1603
81a2b7ce
LP		 1604static int service_spawn(
1605 Service *s,
1606 ExecCommand *c,
1607 bool timeout,
1608 bool pass_fds,
1609 bool apply_permissions,
1610 bool apply_chroot,
1e3ad081 1611 bool apply_tty_stdin,
c952c6ec 1612 bool set_notify_socket,
81a2b7ce
LP		 1613 pid_t *_pid) {
1614
034c6ed7
LP		 1615 pid_t pid;
1616 int r;
6cf6bbc2 1617 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1618 unsigned n_fds = 0, n_env = 0;
1619 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1620
1621 assert(s);
1622 assert(c);
1623 assert(_pid);
1624
6cf6bbc2
LP		 1625 if (pass_fds ||
1626 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1627 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1628 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1629
4f2d528d
LP		 1630 if (s->socket_fd >= 0) {
1631 fds = &s->socket_fd;
1632 n_fds = 1;
6cf6bbc2
LP		 1633 } else {
1634 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1635 goto fail;
1636
1637 fds = fdsbuf;
1638 }
4f2d528d 1639 }
44d8db9e 1640
e558336f 1641 if (timeout && s->timeout_usec) {
acbb0225 1642 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1643 goto fail;
1644 } else
acbb0225 1645 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1646
9e2f7c11
LP		 1647 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1648 r = -ENOMEM;
1649 goto fail;
1650 }
1651
9865f3b4 1652 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1653 r = -ENOMEM;
1654 goto fail;
1655 }
c952c6ec 1656
2105e76a
LP		 1657 if (set_notify_socket)
1658 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1659 r = -ENOMEM;
1660 goto fail;
1661 }
1662
2105e76a
LP		 1663 if (s->main_pid > 0)
1664 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1665 r = -ENOMEM;
1666 goto fail;
1667 }
2105e76a
LP		 1668
1669 if (!(final_env = strv_env_merge(2,
1670 s->meta.manager->environment,
1671 our_env,
1672 NULL))) {
1673 r = -ENOMEM;
1674 goto fail;
1675 }
c952c6ec 1676
9e2f7c11
LP		 1677 r = exec_spawn(c,
1678 argv,
1679 &s->exec_context,
1680 fds, n_fds,
2105e76a 1681 final_env,
9e2f7c11
LP		 1682 apply_permissions,
1683 apply_chroot,
1e3ad081 1684 apply_tty_stdin,
4cd1fbcc
LP		 1685 s->meta.manager->confirm_spawn,
1686 s->meta.cgroup_bondings,
9e2f7c11
LP		 1687 &pid);
1688
9e2f7c11 1689 if (r < 0)
034c6ed7
LP		 1690 goto fail;
1691
4f2d528d 1692
87f0e418 1693 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1694 /* FIXME: we need to do something here */
1695 goto fail;
1696
2105e76a
LP		 1697 free(fdsbuf);
1698 strv_free(argv);
1699 strv_free(our_env);
1700 strv_free(final_env);
1701
034c6ed7
LP		 1702 *_pid = pid;
1703
5cb5a6ff 1704 return 0;
034c6ed7
LP		 1705
1706fail:
2105e76a 1707 free(fdsbuf);
c952c6ec 1708 strv_free(argv);
2105e76a
LP		 1709 strv_free(our_env);
1710 strv_free(final_env);
c952c6ec 1711
034c6ed7 1712 if (timeout)
acbb0225 1713 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1714
1715 return r;
1716}
1717
80876c20
LP		 1718static int main_pid_good(Service *s) {
1719 assert(s);
1720
1721 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1722 * don't know */
1723
1724 /* If we know the pid file, then lets just check if it is
1725 * still valid */
1726 if (s->main_pid_known)
1727 return s->main_pid > 0;
1728
1729 /* We don't know the pid */
1730 return -EAGAIN;
1731}
1732
1733static int control_pid_good(Service *s) {
1734 assert(s);
1735
1736 return s->control_pid > 0;
1737}
1738
1739static int cgroup_good(Service *s) {
1740 int r;
1741
1742 assert(s);
1743
4cd1fbcc 1744 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1745 return r;
1746
1747 return !r;
1748}
1749
034c6ed7
LP		 1750static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1751 int r;
1752 assert(s);
1753
1754 if (!success)
1755 s->failure = true;
1756
1757 if (allow_restart &&
47342320 1758 !s->forbid_restart &&
034c6ed7 1759 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1760 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1761 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1762 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1763 (s->main_exec_status.code == CLD_KILLED ||
1764 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1765
acbb0225 1766 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1767 goto fail;
1768
1769 service_set_state(s, SERVICE_AUTO_RESTART);
1770 } else
fdf20a31 1771 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1772
47342320
LP		 1773 s->forbid_restart = false;
1774
034c6ed7
LP		 1775 return;
1776
1777fail:
4cd1fbcc 1778 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1779 service_enter_dead(s, false, false);
1780}
1781
1782static void service_enter_signal(Service *s, ServiceState state, bool success);
1783
1784static void service_enter_stop_post(Service *s, bool success) {
1785 int r;
1786 assert(s);
1787
1788 if (!success)
1789 s->failure = true;
1790
5e94833f
LP		 1791 service_unwatch_control_pid(s);
1792
80876c20 1793 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1794 s->control_command_id = SERVICE_EXEC_STOP_POST;
1795
81a2b7ce
LP		 1796 if ((r = service_spawn(s,
1797 s->control_command,
1798 true,
1799 false,
1800 !s->permissions_start_only,
1801 !s->root_directory_start_only,
1e3ad081 1802 true,
c952c6ec 1803 false,
81a2b7ce 1804 &s->control_pid)) < 0)
034c6ed7
LP		 1805 goto fail;
1806
d6ea93e3 1807
80876c20
LP		 1808 service_set_state(s, SERVICE_STOP_POST);
1809 } else
1810 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1811
1812 return;
1813
1814fail:
4cd1fbcc 1815 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1816 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1817}
1818
1819static void service_enter_signal(Service *s, ServiceState state, bool success) {
1820 int r;
ca949c9d
LP		 1821 Set *pid_set = NULL;
1822 bool wait_for_exit = false;
034c6ed7
LP		 1823
1824 assert(s);
1825
1826 if (!success)
1827 s->failure = true;
1828
2e22afe9
LP		 1829 if (s->exec_context.kill_mode != KILL_NONE) {
1830 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1831
ca949c9d
LP		 1832 if (s->main_pid > 0) {
1833 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1834 -s->main_pid :
1835 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1836
ca949c9d
LP		 1837 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1838 else
1839 wait_for_exit = true;
034c6ed7
LP		 1840 }
1841
ca949c9d
LP		 1842 if (s->control_pid > 0) {
1843 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1844 -s->control_pid :
1845 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1846
ca949c9d
LP		 1847 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1848 else
1849 wait_for_exit = true;
1850 }
50159e6a 1851
ca949c9d 1852 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1853
ca949c9d
LP		 1854 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1855 r = -ENOMEM;
50159e6a 1856 goto fail;
ca949c9d
LP		 1857 }
1858
1859 /* Exclude the main/control pids from being killed via the cgroup */
1860 if (s->main_pid > 0)
1861 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1862 goto fail;
1863
1864 if (s->control_pid > 0)
1865 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1866 goto fail;
1867
1868 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1869 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1870 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1871 } else if (r > 0)
ca949c9d
LP		 1872 wait_for_exit = true;
1873
1874 set_free(pid_set);
50159e6a 1875 }
d6ea93e3 1876 }
034c6ed7 1877
ca949c9d 1878 if (wait_for_exit) {
e558336f
LP		 1879 if (s->timeout_usec > 0)
1880 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1881 goto fail;
d6ea93e3 1882
80876c20
LP		 1883 service_set_state(s, state);
1884 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1885 service_enter_stop_post(s, true);
1886 else
034c6ed7
LP		 1887 service_enter_dead(s, true, true);
1888
1889 return;
1890
1891fail:
4cd1fbcc 1892 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1893
80876c20 1894 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1895 service_enter_stop_post(s, false);
1896 else
1897 service_enter_dead(s, false, true);
ca949c9d
LP		 1898
1899 if (pid_set)
1900 set_free(pid_set);
034c6ed7
LP		 1901}
1902
1903static void service_enter_stop(Service *s, bool success) {
1904 int r;
5925dd3c 1905
034c6ed7
LP		 1906 assert(s);
1907
1908 if (!success)
1909 s->failure = true;
1910
5e94833f
LP		 1911 service_unwatch_control_pid(s);
1912
80876c20 1913 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1914 s->control_command_id = SERVICE_EXEC_STOP;
1915
81a2b7ce
LP		 1916 if ((r = service_spawn(s,
1917 s->control_command,
1918 true,
1919 false,
1920 !s->permissions_start_only,
1921 !s->root_directory_start_only,
c952c6ec 1922 false,
1e3ad081 1923 false,
e55224ca 1924 &s->control_pid)) < 0)
034c6ed7
LP		 1925 goto fail;
1926
80876c20
LP		 1927 service_set_state(s, SERVICE_STOP);
1928 } else
034c6ed7
LP		 1929 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1930
1931 return;
1932
1933fail:
4cd1fbcc 1934 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1935 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1936}
1937
80876c20 1938static void service_enter_running(Service *s, bool success) {
4eab639f 1939 int main_pid_ok, cgroup_ok;
80876c20
LP		 1940 assert(s);
1941
1942 if (!success)
1943 s->failure = true;
1944
4eab639f
LP		 1945 main_pid_ok = main_pid_good(s);
1946 cgroup_ok = cgroup_good(s);
1947
1948 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1949 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1950 service_set_state(s, SERVICE_RUNNING);
02ee865a 1951 else if (s->remain_after_exit)
80876c20
LP		 1952 service_set_state(s, SERVICE_EXITED);
1953 else
1954 service_enter_stop(s, true);
1955}
1956
034c6ed7
LP		 1957static void service_enter_start_post(Service *s) {
1958 int r;
1959 assert(s);
1960
5e94833f
LP		 1961 service_unwatch_control_pid(s);
1962
80876c20 1963 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 1964 s->control_command_id = SERVICE_EXEC_START_POST;
1965
81a2b7ce
LP		 1966 if ((r = service_spawn(s,
1967 s->control_command,
1968 true,
1969 false,
1970 !s->permissions_start_only,
1971 !s->root_directory_start_only,
c952c6ec 1972 false,
1e3ad081 1973 false,
e55224ca 1974 &s->control_pid)) < 0)
034c6ed7
LP		 1975 goto fail;
1976
80876c20
LP		 1977 service_set_state(s, SERVICE_START_POST);
1978 } else
1979 service_enter_running(s, true);
034c6ed7
LP		 1980
1981 return;
1982
1983fail:
4cd1fbcc 1984 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1985 service_enter_stop(s, false);
1986}
1987
1988static void service_enter_start(Service *s) {
1989 pid_t pid;
1990 int r;
867b3b7d 1991 ExecCommand *c;
034c6ed7
LP		 1992
1993 assert(s);
1994
1995 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1996 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1997
80876c20
LP		 1998 if (s->type == SERVICE_FORKING)
1999 service_unwatch_control_pid(s);
2000 else
2001 service_unwatch_main_pid(s);
2002
867b3b7d
LP		 2003 if (s->type == SERVICE_FORKING) {
2004 s->control_command_id = SERVICE_EXEC_START;
2005 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2006
2007 s->main_command = NULL;
2008 } else {
2009 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2010 s->control_command = NULL;
2011
2012 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2013 }
34e9ba66 2014
81a2b7ce 2015 if ((r = service_spawn(s,
867b3b7d 2016 c,
8c47c732 2017 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2018 true,
2019 true,
2020 true,
1e3ad081 2021 true,
c952c6ec 2022 s->notify_access != NOTIFY_NONE,
81a2b7ce 2023 &pid)) < 0)
034c6ed7
LP		 2024 goto fail;
2025
2026 if (s->type == SERVICE_SIMPLE) {
2027 /* For simple services we immediately start
2028 * the START_POST binaries. */
2029
5925dd3c 2030 service_set_main_pid(s, pid);
034c6ed7
LP		 2031 service_enter_start_post(s);
2032
2033 } else if (s->type == SERVICE_FORKING) {
2034
2035 /* For forking services we wait until the start
2036 * process exited. */
2037
e55224ca 2038 s->control_pid = pid;
80876c20
LP		 2039 service_set_state(s, SERVICE_START);
2040
34e9ba66 2041 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2042 s->type == SERVICE_DBUS ||
2043 s->type == SERVICE_NOTIFY) {
7d55e835 2044
34e9ba66 2045 /* For oneshot services we wait until the start
7d55e835
LP		 2046 * process exited, too, but it is our main process. */
2047
05e343b7 2048 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2049 * but wait for the bus name to appear on the
2050 * bus. Notify services are similar. */
05e343b7 2051
5925dd3c 2052 service_set_main_pid(s, pid);
80876c20 2053 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2054 } else
2055 assert_not_reached("Unknown service type");
2056
2057 return;
2058
2059fail:
4cd1fbcc 2060 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2061 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2062}
2063
2064static void service_enter_start_pre(Service *s) {
2065 int r;
2066
2067 assert(s);
2068
5e94833f
LP		 2069 service_unwatch_control_pid(s);
2070
80876c20 2071 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2072 s->control_command_id = SERVICE_EXEC_START_PRE;
2073
81a2b7ce
LP		 2074 if ((r = service_spawn(s,
2075 s->control_command,
2076 true,
2077 false,
2078 !s->permissions_start_only,
2079 !s->root_directory_start_only,
1e3ad081 2080 true,
c952c6ec 2081 false,
e55224ca 2082 &s->control_pid)) < 0)
034c6ed7
LP		 2083 goto fail;
2084
80876c20
LP		 2085 service_set_state(s, SERVICE_START_PRE);
2086 } else
034c6ed7
LP		 2087 service_enter_start(s);
2088
2089 return;
2090
2091fail:
4cd1fbcc 2092 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2093 service_enter_dead(s, false, true);
2094}
2095
2096static void service_enter_restart(Service *s) {
2097 int r;
398ef8ba
LP		 2098 DBusError error;
2099
034c6ed7 2100 assert(s);
398ef8ba 2101 dbus_error_init(&error);
034c6ed7 2102
2edfa366
LP		 2103 if (s->meta.job) {
2104 log_info("Job pending for unit, delaying automatic restart.");
2105
2106 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2107 goto fail;
2108 }
2109
9ea9a0c8
LP		 2110 service_enter_dead(s, true, false);
2111
7b2603e6 2112 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2113 goto fail;
2114
4cd1fbcc 2115 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2116 return;
2117
2118fail:
398ef8ba 2119 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2120 service_enter_dead(s, false, false);
398ef8ba
LP		 2121
2122 dbus_error_free(&error);
034c6ed7
LP		 2123}
2124
2125static void service_enter_reload(Service *s) {
2126 int r;
2127
2128 assert(s);
2129
5e94833f
LP		 2130 service_unwatch_control_pid(s);
2131
80876c20 2132 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2133 s->control_command_id = SERVICE_EXEC_RELOAD;
2134
81a2b7ce
LP		 2135 if ((r = service_spawn(s,
2136 s->control_command,
2137 true,
2138 false,
2139 !s->permissions_start_only,
2140 !s->root_directory_start_only,
c952c6ec 2141 false,
1e3ad081 2142 false,
e55224ca 2143 &s->control_pid)) < 0)
034c6ed7
LP		 2144 goto fail;
2145
80876c20
LP		 2146 service_set_state(s, SERVICE_RELOAD);
2147 } else
2148 service_enter_running(s, true);
034c6ed7
LP		 2149
2150 return;
2151
2152fail:
4cd1fbcc 2153 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2154 s->reload_failure = true;
2155 service_enter_running(s, true);
034c6ed7
LP		 2156}
2157
34e9ba66 2158static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2159 int r;
2160
2161 assert(s);
2162 assert(s->control_command);
2163 assert(s->control_command->command_next);
2164
2165 if (!success)
2166 s->failure = true;
2167
34e9ba66 2168 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2169
34e9ba66 2170 s->control_command = s->control_command->command_next;
5e94833f
LP		 2171 service_unwatch_control_pid(s);
2172
81a2b7ce
LP		 2173 if ((r = service_spawn(s,
2174 s->control_command,
2175 true,
2176 false,
2177 !s->permissions_start_only,
2178 !s->root_directory_start_only,
5830833f
LP		 2179 s->control_command_id == SERVICE_EXEC_START_PRE ||
2180 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2181 false,
e55224ca 2182 &s->control_pid)) < 0)
034c6ed7
LP		 2183 goto fail;
2184
2185 return;
2186
2187fail:
34e9ba66 2188 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2189
80876c20
LP		 2190 if (s->state == SERVICE_START_PRE)
2191 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2192 else if (s->state == SERVICE_STOP)
2193 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2194 else if (s->state == SERVICE_STOP_POST)
2195 service_enter_dead(s, false, true);
e2f3b44c
LP		 2196 else if (s->state == SERVICE_RELOAD) {
2197 s->reload_failure = true;
2198 service_enter_running(s, true);
2199 } else
034c6ed7 2200 service_enter_stop(s, false);
5cb5a6ff
LP		 2201}
2202
34e9ba66
LP		 2203static void service_run_next_main(Service *s, bool success) {
2204 pid_t pid;
2205 int r;
2206
2207 assert(s);
867b3b7d
LP		 2208 assert(s->main_command);
2209 assert(s->main_command->command_next);
2210 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2211
2212 if (!success)
2213 s->failure = true;
2214
867b3b7d 2215 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2216 service_unwatch_main_pid(s);
2217
2218 if ((r = service_spawn(s,
867b3b7d 2219 s->main_command,
34e9ba66
LP		 2220 false,
2221 true,
2222 true,
2223 true,
2224 true,
2225 s->notify_access != NOTIFY_NONE,
2226 &pid)) < 0)
2227 goto fail;
2228
2229 service_set_main_pid(s, pid);
2230
2231 return;
2232
2233fail:
2234 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2235 service_enter_stop(s, false);
2236}
2237
87f0e418
LP		 2238static int service_start(Unit *u) {
2239 Service *s = SERVICE(u);
5cb5a6ff
LP		 2240
2241 assert(s);
2242
034c6ed7
LP		 2243 /* We cannot fulfill this request right now, try again later
2244 * please! */
2245 if (s->state == SERVICE_STOP ||
2246 s->state == SERVICE_STOP_SIGTERM ||
2247 s->state == SERVICE_STOP_SIGKILL ||
2248 s->state == SERVICE_STOP_POST ||
2249 s->state == SERVICE_FINAL_SIGTERM ||
2250 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2251 return -EAGAIN;
2252
034c6ed7
LP		 2253 /* Already on it! */
2254 if (s->state == SERVICE_START_PRE ||
2255 s->state == SERVICE_START ||
2256 s->state == SERVICE_START_POST)
2257 return 0;
2258
fdf20a31 2259 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2260
1e2e8133
LP		 2261 /* Make sure we don't enter a busy loop of some kind. */
2262 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2263 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2264 return -ECANCELED;
1e2e8133
LP		 2265 }
2266
034c6ed7
LP		 2267 s->failure = false;
2268 s->main_pid_known = false;
47342320 2269 s->forbid_restart = false;
034c6ed7
LP		 2270
2271 service_enter_start_pre(s);
2272 return 0;
5cb5a6ff
LP		 2273}
2274
87f0e418
LP		 2275static int service_stop(Unit *u) {
2276 Service *s = SERVICE(u);
5cb5a6ff
LP		 2277
2278 assert(s);
2279
3f6c78dc
LP		 2280 /* This is a user request, so don't do restarts on this
2281 * shutdown. */
47342320 2282 s->forbid_restart = true;
034c6ed7 2283
e537352b
LP		 2284 /* Already on it */
2285 if (s->state == SERVICE_STOP ||
2286 s->state == SERVICE_STOP_SIGTERM ||
2287 s->state == SERVICE_STOP_SIGKILL ||
2288 s->state == SERVICE_STOP_POST ||
2289 s->state == SERVICE_FINAL_SIGTERM ||
2290 s->state == SERVICE_FINAL_SIGKILL)
2291 return 0;
2292
3f6c78dc 2293 /* Don't allow a restart */
034c6ed7
LP		 2294 if (s->state == SERVICE_AUTO_RESTART) {
2295 service_set_state(s, SERVICE_DEAD);
2296 return 0;
2297 }
2298
3f6c78dc
LP		 2299 /* If there's already something running we go directly into
2300 * kill mode. */
2301 if (s->state == SERVICE_START_PRE ||
2302 s->state == SERVICE_START ||
2303 s->state == SERVICE_START_POST ||
2304 s->state == SERVICE_RELOAD) {
2305 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2306 return 0;
2307 }
5cb5a6ff 2308
3f6c78dc
LP		 2309 assert(s->state == SERVICE_RUNNING ||
2310 s->state == SERVICE_EXITED);
3a762661 2311
034c6ed7 2312 service_enter_stop(s, true);
5cb5a6ff
LP		 2313 return 0;
2314}
2315
87f0e418
LP		 2316static int service_reload(Unit *u) {
2317 Service *s = SERVICE(u);
034c6ed7
LP		 2318
2319 assert(s);
2320
80876c20 2321 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2322
2323 service_enter_reload(s);
5cb5a6ff
LP		 2324 return 0;
2325}
2326
87f0e418
LP		 2327static bool service_can_reload(Unit *u) {
2328 Service *s = SERVICE(u);
034c6ed7
LP		 2329
2330 assert(s);
2331
2332 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2333}
2334
a16e1123
LP		 2335static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2336 Service *s = SERVICE(u);
2337
2338 assert(u);
2339 assert(f);
2340 assert(fds);
2341
2342 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2343 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2344
2345 if (s->control_pid > 0)
5925dd3c 2346 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2347
5925dd3c
LP		 2348 if (s->main_pid_known && s->main_pid > 0)
2349 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2350
2351 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2352
3a2776bc
LP		 2353 if (s->status_text)
2354 unit_serialize_item(u, f, "status-text", s->status_text);
2355
a16e1123
LP		 2356 /* There's a minor uncleanliness here: if there are multiple
2357 * commands attached here, we will start from the first one
2358 * again */
2359 if (s->control_command_id >= 0)
825636e5 2360 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2361
2362 if (s->socket_fd >= 0) {
2363 int copy;
2364
2365 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2366 return copy;
2367
2368 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2369 }
2370
ecdbca40
LP		 2371 if (s->main_exec_status.pid > 0) {
2372 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2373 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2374 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2375
799fd0fd 2376 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2377 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2378 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2379 }
2380 }
2381
a16e1123
LP		 2382 return 0;
2383}
2384
2385static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2386 Service *s = SERVICE(u);
a16e1123
LP		 2387
2388 assert(u);
2389 assert(key);
2390 assert(value);
2391 assert(fds);
2392
2393 if (streq(key, "state")) {
2394 ServiceState state;
2395
2396 if ((state = service_state_from_string(value)) < 0)
2397 log_debug("Failed to parse state value %s", value);
2398 else
2399 s->deserialized_state = state;
2400 } else if (streq(key, "failure")) {
2401 int b;
2402
2403 if ((b = parse_boolean(value)) < 0)
2404 log_debug("Failed to parse failure value %s", value);
2405 else
2406 s->failure = b || s->failure;
2407 } else if (streq(key, "control-pid")) {
5925dd3c 2408 pid_t pid;
a16e1123 2409
e364ad06 2410 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2411 log_debug("Failed to parse control-pid value %s", value);
2412 else
e55224ca 2413 s->control_pid = pid;
a16e1123 2414 } else if (streq(key, "main-pid")) {
5925dd3c 2415 pid_t pid;
a16e1123 2416
e364ad06 2417 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2418 log_debug("Failed to parse main-pid value %s", value);
2419 else
5925dd3c 2420 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2421 } else if (streq(key, "main-pid-known")) {
2422 int b;
2423
2424 if ((b = parse_boolean(value)) < 0)
2425 log_debug("Failed to parse main-pid-known value %s", value);
2426 else
2427 s->main_pid_known = b;
3a2776bc
LP		 2428 } else if (streq(key, "status-text")) {
2429 char *t;
2430
2431 if ((t = strdup(value))) {
2432 free(s->status_text);
2433 s->status_text = t;
2434 }
2435
a16e1123
LP		 2436 } else if (streq(key, "control-command")) {
2437 ServiceExecCommand id;
2438
2439 if ((id = service_exec_command_from_string(value)) < 0)
2440 log_debug("Failed to parse exec-command value %s", value);
2441 else {
2442 s->control_command_id = id;
2443 s->control_command = s->exec_command[id];
2444 }
2445 } else if (streq(key, "socket-fd")) {
2446 int fd;
2447
2448 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2449 log_debug("Failed to parse socket-fd value %s", value);
2450 else {
2451
2452 if (s->socket_fd >= 0)
2453 close_nointr_nofail(s->socket_fd);
2454 s->socket_fd = fdset_remove(fds, fd);
2455 }
ecdbca40
LP		 2456 } else if (streq(key, "main-exec-status-pid")) {
2457 pid_t pid;
2458
e364ad06 2459 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2460 log_debug("Failed to parse main-exec-status-pid value %s", value);
2461 else
2462 s->main_exec_status.pid = pid;
2463 } else if (streq(key, "main-exec-status-code")) {
2464 int i;
2465
e364ad06 2466 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2467 log_debug("Failed to parse main-exec-status-code value %s", value);
2468 else
2469 s->main_exec_status.code = i;
2470 } else if (streq(key, "main-exec-status-status")) {
2471 int i;
2472
e364ad06 2473 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2474 log_debug("Failed to parse main-exec-status-status value %s", value);
2475 else
2476 s->main_exec_status.status = i;
799fd0fd
LP		 2477 } else if (streq(key, "main-exec-status-start"))
2478 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2479 else if (streq(key, "main-exec-status-exit"))
2480 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2481 else
a16e1123
LP		 2482 log_debug("Unknown serialization key '%s'", key);
2483
2484 return 0;
2485}
2486
87f0e418
LP		 2487static UnitActiveState service_active_state(Unit *u) {
2488 assert(u);
5cb5a6ff 2489
acbb0225 2490 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2491}
2492
10a94420
LP		 2493static const char *service_sub_state_to_string(Unit *u) {
2494 assert(u);
2495
2496 return service_state_to_string(SERVICE(u)->state);
2497}
2498
07459bb6 2499#ifdef HAVE_SYSV_COMPAT
701cc384
LP		 2500static bool service_check_gc(Unit *u) {
2501 Service *s = SERVICE(u);
2502
2503 assert(s);
2504
2505 return !!s->sysv_path;
2506}
07459bb6 2507#endif
701cc384
LP		 2508
2509static bool service_check_snapshot(Unit *u) {
2510 Service *s = SERVICE(u);
2511
2512 assert(s);
2513
2514 return !s->got_socket_fd;
2515}
2516
87f0e418
LP		 2517static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2518 Service *s = SERVICE(u);
034c6ed7 2519 bool success;
5cb5a6ff
LP		 2520
2521 assert(s);
034c6ed7
LP		 2522 assert(pid >= 0);
2523
f21781d5 2524 if (!s->meta.fragment_path)
d06dacd0
LP		 2525 success = is_clean_exit_lsb(code, status);
2526 else
2527 success = is_clean_exit(code, status);
034c6ed7
LP		 2528
2529 if (s->main_pid == pid) {
2530
034c6ed7 2531 s->main_pid = 0;
169c1bda 2532 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
034c6ed7 2533
867b3b7d
LP		 2534 /* If this is not a forking service than the main
2535 * process got started and hence we copy the exit
2536 * status so that it is recorded both as main and as
2537 * control process exit status */
2538 if (s->main_command) {
2539 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2540
867b3b7d 2541 if (s->main_command->ignore)
b708e7ce 2542 success = true;
034c6ed7
LP		 2543 }
2544
92abbefb
LP		 2545 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2546 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2547 s->failure = s->failure || !success;
034c6ed7 2548
867b3b7d
LP		 2549 if (s->main_command &&
2550 s->main_command->command_next &&
34e9ba66 2551 success) {
034c6ed7 2552
34e9ba66
LP		 2553 /* There is another command to *
2554 * execute, so let's do that. */
034c6ed7 2555
34e9ba66
LP		 2556 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2557 service_run_next_main(s, success);
034c6ed7 2558
34e9ba66
LP		 2559 } else {
2560
2561 /* The service exited, so the service is officially
2562 * gone. */
867b3b7d 2563 s->main_command = NULL;
34e9ba66
LP		 2564
2565 switch (s->state) {
2566
2567 case SERVICE_START_POST:
2568 case SERVICE_RELOAD:
2569 case SERVICE_STOP:
2570 /* Need to wait until the operation is
2571 * done */
c4653a4d 2572 break;
7d55e835 2573
34e9ba66
LP		 2574 case SERVICE_START:
2575 if (s->type == SERVICE_ONESHOT) {
2576 /* This was our main goal, so let's go on */
2577 if (success)
2578 service_enter_start_post(s);
2579 else
2580 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2581 break;
2582 } else {
2583 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2584
34e9ba66
LP		 2585 /* Fall through */
2586 }
034c6ed7 2587
34e9ba66
LP		 2588 case SERVICE_RUNNING:
2589 service_enter_running(s, success);
2590 break;
034c6ed7 2591
34e9ba66
LP		 2592 case SERVICE_STOP_SIGTERM:
2593 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2594
34e9ba66
LP		 2595 if (!control_pid_good(s))
2596 service_enter_stop_post(s, success);
5cb5a6ff 2597
34e9ba66
LP		 2598 /* If there is still a control process, wait for that first */
2599 break;
2600
2601 default:
2602 assert_not_reached("Uh, main process died at wrong time.");
2603 }
034c6ed7 2604 }
5cb5a6ff 2605
034c6ed7 2606 } else if (s->control_pid == pid) {
034c6ed7 2607
34e9ba66
LP		 2608 s->control_pid = 0;
2609
b708e7ce 2610 if (s->control_command) {
169c1bda 2611 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 2612
b708e7ce
LP		 2613 if (s->control_command->ignore)
2614 success = true;
2615 }
2616
34e9ba66 2617 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2618 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2619 s->failure = s->failure || !success;
034c6ed7 2620
34e9ba66
LP		 2621 if (s->control_command &&
2622 s->control_command->command_next &&
2623 success) {
034c6ed7
LP		 2624
2625 /* There is another command to *
2626 * execute, so let's do that. */
2627
34e9ba66
LP		 2628 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2629 service_run_next_control(s, success);
034c6ed7 2630
80876c20 2631 } else {
034c6ed7
LP		 2632 /* No further commands for this step, so let's
2633 * figure out what to do next */
2634
a16e1123
LP		 2635 s->control_command = NULL;
2636 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2637
9e2f7c11 2638 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2639
034c6ed7
LP		 2640 switch (s->state) {
2641
2642 case SERVICE_START_PRE:
2643 if (success)
2644 service_enter_start(s);
2645 else
80876c20 2646 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2647 break;
2648
2649 case SERVICE_START:
2650 assert(s->type == SERVICE_FORKING);
2651
2652 /* Let's try to load the pid
2653 * file here if we can. We
2654 * ignore the return value,
2655 * since the PID file might
2656 * actually be created by a
2657 * START_POST script */
2658
2659 if (success) {
4fbf50b3
LP		 2660 service_load_pid_file(s);
2661 service_search_main_pid(s);
034c6ed7
LP		 2662
2663 service_enter_start_post(s);
2664 } else
80876c20 2665 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2666
2667 break;
2668
2669 case SERVICE_START_POST:
2670 if (success && s->pid_file && !s->main_pid_known) {
2671 int r;
2672
2673 /* Hmm, let's see if we can
2674 * load the pid now after the
2675 * start-post scripts got
2676 * executed. */
2677
2678 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2679 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2680 }
2681
3185a36b
LP		 2682 s->reload_failure = !success;
2683 service_enter_running(s, true);
2684 break;
034c6ed7
LP		 2685
2686 case SERVICE_RELOAD:
3185a36b
LP		 2687 if (success) {
2688 service_load_pid_file(s);
2689 service_search_main_pid(s);
2690 }
2691
e2f3b44c
LP		 2692 s->reload_failure = !success;
2693 service_enter_running(s, true);
034c6ed7
LP		 2694 break;
2695
2696 case SERVICE_STOP:
80876c20 2697 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2698 break;
2699
2700 case SERVICE_STOP_SIGTERM:
2701 case SERVICE_STOP_SIGKILL:
2702 if (main_pid_good(s) <= 0)
2703 service_enter_stop_post(s, success);
2704
2705 /* If there is still a service
2706 * process around, wait until
2707 * that one quit, too */
2708 break;
2709
2710 case SERVICE_STOP_POST:
2711 case SERVICE_FINAL_SIGTERM:
2712 case SERVICE_FINAL_SIGKILL:
2713 service_enter_dead(s, success, true);
2714 break;
2715
2716 default:
2717 assert_not_reached("Uh, control process died at wrong time.");
2718 }
2719 }
8c47c732 2720 }
c4e2ceae
LP		 2721
2722 /* Notify clients about changed exit status */
2723 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2724}
2725
acbb0225 2726static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2727 Service *s = SERVICE(u);
034c6ed7
LP		 2728
2729 assert(s);
2730 assert(elapsed == 1);
2731
acbb0225 2732 assert(w == &s->timer_watch);
034c6ed7
LP		 2733
2734 switch (s->state) {
2735
2736 case SERVICE_START_PRE:
2737 case SERVICE_START:
9e2f7c11 2738 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2739 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2740 break;
2741
034c6ed7 2742 case SERVICE_START_POST:
9e2f7c11 2743 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2744 service_enter_stop(s, false);
2745 break;
2746
e2f3b44c
LP		 2747 case SERVICE_RELOAD:
2748 log_warning("%s operation timed out. Stopping.", u->meta.id);
2749 s->reload_failure = true;
2750 service_enter_running(s, true);
2751 break;
2752
034c6ed7 2753 case SERVICE_STOP:
9e2f7c11 2754 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2755 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2756 break;
2757
2758 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2759 if (s->exec_context.send_sigkill) {
2760 log_warning("%s stopping timed out. Killing.", u->meta.id);
2761 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2762 } else {
2763 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2764 service_enter_stop_post(s, false);
2765 }
2766
034c6ed7
LP		 2767 break;
2768
2769 case SERVICE_STOP_SIGKILL:
2770 /* Uh, wie sent a SIGKILL and it is still not gone?
2771 * Must be something we cannot kill, so let's just be
2772 * weirded out and continue */
2773
9e2f7c11 2774 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2775 service_enter_stop_post(s, false);
2776 break;
2777
2778 case SERVICE_STOP_POST:
9e2f7c11 2779 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2780 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2781 break;
2782
2783 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2784 if (s->exec_context.send_sigkill) {
2785 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2786 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2787 } else {
2788 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2789 service_enter_dead(s, false, true);
2790 }
2791
034c6ed7
LP		 2792 break;
2793
2794 case SERVICE_FINAL_SIGKILL:
fdf20a31 2795 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2796 service_enter_dead(s, false, true);
2797 break;
2798
2799 case SERVICE_AUTO_RESTART:
54165a39 2800 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2801 service_enter_restart(s);
2802 break;
2803
2804 default:
2805 assert_not_reached("Timeout at wrong time.");
2806 }
5cb5a6ff
LP		 2807}
2808
8e274523
LP		 2809static void service_cgroup_notify_event(Unit *u) {
2810 Service *s = SERVICE(u);
2811
2812 assert(u);
2813
9e2f7c11 2814 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2815
2816 switch (s->state) {
2817
2818 /* Waiting for SIGCHLD is usually more interesting,
2819 * because it includes return codes/signals. Which is
2820 * why we ignore the cgroup events for most cases,
2821 * except when we don't know pid which to expect the
2822 * SIGCHLD for. */
2823
2824 case SERVICE_RUNNING:
80876c20 2825 service_enter_running(s, true);
8e274523
LP		 2826 break;
2827
28708d8a
LP		 2828 case SERVICE_STOP_SIGTERM:
2829 case SERVICE_STOP_SIGKILL:
2830 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2831 service_enter_stop_post(s, true);
2832
2833 break;
2834
7f97f0fe
LP		 2835 case SERVICE_FINAL_SIGTERM:
2836 case SERVICE_FINAL_SIGKILL:
2837 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2838 service_enter_dead(s, true, true);
2839
2840 break;
2841
8e274523
LP		 2842 default:
2843 ;
2844 }
2845}
2846
c952c6ec 2847static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2848 Service *s = SERVICE(u);
2849 const char *e;
2850
2851 assert(u);
2852
c952c6ec
LP		 2853 if (s->notify_access == NOTIFY_NONE) {
2854 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2855 u->meta.id, (unsigned long) pid);
2856 return;
2857 }
2858
2859 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2860 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2861 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2862 return;
2863 }
2864
8c47c732
LP		 2865 log_debug("%s: Got message", u->meta.id);
2866
2867 /* Interpret MAINPID= */
2868 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2869 (s->state == SERVICE_START ||
2870 s->state == SERVICE_START_POST ||
2871 s->state == SERVICE_RUNNING ||
2872 s->state == SERVICE_RELOAD)) {
8c47c732 2873
5925dd3c 2874 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2875 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2876 else {
2877 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2878 service_set_main_pid(s, pid);
8c47c732
LP		 2879 }
2880 }
2881
2882 /* Interpret READY= */
2883 if (s->type == SERVICE_NOTIFY &&
2884 s->state == SERVICE_START &&
2885 strv_find(tags, "READY=1")) {
2886 log_debug("%s: got READY=1", u->meta.id);
2887
2888 service_enter_start_post(s);
2889 }
2890
2891 /* Interpret STATUS= */
2892 if ((e = strv_find_prefix(tags, "STATUS="))) {
2893 char *t;
2894
3a2776bc
LP		 2895 if (e[7]) {
2896 if (!(t = strdup(e+7))) {
2897 log_error("Failed to allocate string.");
2898 return;
2899 }
2900
2901 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2902
3a2776bc
LP		 2903 free(s->status_text);
2904 s->status_text = t;
2905 } else {
2906 free(s->status_text);
2907 s->status_text = NULL;
2908 }
8c47c732 2909
8c47c732 2910 }
c4e2ceae
LP		 2911
2912 /* Notify clients about changed status or main pid */
2913 unit_add_to_dbus_queue(u);
8c47c732
LP		 2914}
2915
07459bb6 2916#ifdef HAVE_SYSV_COMPAT
2c4104f0 2917static int service_enumerate(Manager *m) {
2c4104f0
LP		 2918 char **p;
2919 unsigned i;
2920 DIR *d = NULL;
2921 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2922 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2923 Unit *service;
2924 Iterator j;
2c4104f0
LP		 2925 int r;
2926
2927 assert(m);
2928
c68364b7
LP		 2929 zero(runlevel_services);
2930
84e3543e 2931 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2932 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2933 struct dirent *de;
2934
2935 free(path);
2936 path = NULL;
09cd1ab1 2937 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2938 r = -ENOMEM;
2939 goto finish;
2940 }
2941
2942 if (d)
2943 closedir(d);
2944
2945 if (!(d = opendir(path))) {
2946 if (errno != ENOENT)
2947 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2948
2949 continue;
2950 }
2951
2952 while ((de = readdir(d))) {
db06e3b6 2953 int a, b;
2c4104f0
LP		 2954
2955 if (ignore_file(de->d_name))
2956 continue;
2957
2958 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2959 continue;
2960
2961 if (strlen(de->d_name) < 4)
2962 continue;
2963
db06e3b6
LP		 2964 a = undecchar(de->d_name[1]);
2965 b = undecchar(de->d_name[2]);
2966
2967 if (a < 0 || b < 0)
2968 continue;
2969
2c4104f0
LP		 2970 free(fpath);
2971 fpath = NULL;
09cd1ab1 2972 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2973 r = -ENOMEM;
2974 goto finish;
2975 }
2976
2977 if (access(fpath, X_OK) < 0) {
2978
2979 if (errno != ENOENT)
2980 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2981
2982 continue;
2983 }
2984
2985 free(name);
b7ccee3c 2986 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2987 r = -ENOMEM;
2988 goto finish;
2989 }
2990
398ef8ba 2991 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2992 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2993 continue;
2994 }
2c4104f0 2995
c68364b7
LP		 2996 if (de->d_name[0] == 'S') {
2997
f73d93a4
LP		 2998 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2999 SERVICE(service)->sysv_start_priority =
3000 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 3001
c68364b7 3002 SERVICE(service)->sysv_enabled = true;
f73d93a4 3003 }
db06e3b6 3004
c68364b7
LP		 3005 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3006 goto finish;
2c4104f0 3007
c68364b7 3008 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3009 goto finish;
23a177ef 3010
fc5df99e
LP		 3011 } else if (de->d_name[0] == 'K' &&
3012 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3013 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3014
c68364b7
LP		 3015 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3016 goto finish;
3017
3018 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3019 goto finish;
3020 }
3021 }
3022 }
3023
c68364b7
LP		 3024 /* Now we loaded all stubs and are aware of the lowest
3025 start-up priority for all services, not let's actually load
3026 the services, this will also tell us which services are
3027 actually native now */
3028 manager_dispatch_load_queue(m);
3029
3030 /* If this is a native service, rely on native ways to pull in
3031 * a service, don't pull it in via sysv rcN.d links. */
3032 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3033 SET_FOREACH(service, runlevel_services[i], j) {
3034 service = unit_follow_merge(service);
3035
3036 if (service->meta.fragment_path)
3037 continue;
3038
3039 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3040 goto finish;
3041 }
3042
3043 /* We honour K links only for halt/reboot. For the normal
3044 * runlevels we assume the stop jobs will be implicitly added
3045 * by the core logic. Also, we don't really distuingish here
3046 * between the runlevels 0 and 6 and just add them to the
3047 * special shutdown target. On SUSE the boot.d/ runlevel is
3048 * also used for shutdown, so we add links for that too to the
3049 * shutdown target.*/
3050 SET_FOREACH(service, shutdown_services, j) {
3051 service = unit_follow_merge(service);
3052
3053 if (service->meta.fragment_path)
3054 continue;
3055
ead8e478 3056 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3057 goto finish;
3058 }
3059
2c4104f0
LP		 3060 r = 0;
3061
3062finish:
3063 free(path);
3064 free(fpath);
3065 free(name);
fbe9f3a9 3066
c68364b7
LP		 3067 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3068 set_free(runlevel_services[i]);
3069 set_free(shutdown_services);
3070
fbe9f3a9
LP		 3071 if (d)
3072 closedir(d);
2c4104f0
LP		 3073
3074 return r;
3075}
07459bb6 3076#endif
2c4104f0 3077
05e343b7
LP		 3078static void service_bus_name_owner_change(
3079 Unit *u,
3080 const char *name,
3081 const char *old_owner,
3082 const char *new_owner) {
3083
3084 Service *s = SERVICE(u);
3085
3086 assert(s);
3087 assert(name);
3088
3089 assert(streq(s->bus_name, name));
3090 assert(old_owner || new_owner);
3091
3092 if (old_owner && new_owner)
3093 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3094 else if (old_owner)
3095 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3096 else
3097 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3098
3099 s->bus_name_good = !!new_owner;
3100
3101 if (s->type == SERVICE_DBUS) {
3102
3103 /* service_enter_running() will figure out what to
3104 * do */
3105 if (s->state == SERVICE_RUNNING)
3106 service_enter_running(s, true);
3107 else if (s->state == SERVICE_START && new_owner)
3108 service_enter_start_post(s);
3109
3110 } else if (new_owner &&
3111 s->main_pid <= 0 &&
3112 (s->state == SERVICE_START ||
3113 s->state == SERVICE_START_POST ||
3114 s->state == SERVICE_RUNNING ||
3115 s->state == SERVICE_RELOAD)) {
3116
3117 /* Try to acquire PID from bus service */
3118 log_debug("Trying to acquire PID from D-Bus name...");
3119
3120 bus_query_pid(u->meta.manager, name);
3121 }
3122}
3123
3124static void service_bus_query_pid_done(
3125 Unit *u,
3126 const char *name,
3127 pid_t pid) {
3128
3129 Service *s = SERVICE(u);
3130
3131 assert(s);
3132 assert(name);
3133
3134 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3135
3136 if (s->main_pid <= 0 &&
3137 (s->state == SERVICE_START ||
3138 s->state == SERVICE_START_POST ||
3139 s->state == SERVICE_RUNNING ||
3140 s->state == SERVICE_RELOAD))
5925dd3c 3141 service_set_main_pid(s, pid);
05e343b7
LP		 3142}
3143
6cf6bbc2 3144int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3145 assert(s);
3146 assert(fd >= 0);
3147
3148 /* This is called by the socket code when instantiating a new
3149 * service for a stream socket and the socket needs to be
3150 * configured. */
3151
4cd1fbcc 3152 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3153 return -EINVAL;
3154
3155 if (s->socket_fd >= 0)
3156 return -EBUSY;
3157
3158 if (s->state != SERVICE_DEAD)
3159 return -EAGAIN;
3160
3161 s->socket_fd = fd;
701cc384 3162 s->got_socket_fd = true;
f976f3f6 3163 s->accept_socket = sock;
6cf6bbc2 3164
4f2d528d
LP		 3165 return 0;
3166}
3167
fdf20a31 3168static void service_reset_failed(Unit *u) {
5632e374
LP		 3169 Service *s = SERVICE(u);
3170
3171 assert(s);
3172
fdf20a31 3173 if (s->state == SERVICE_FAILED)
5632e374
LP		 3174 service_set_state(s, SERVICE_DEAD);
3175
3176 s->failure = false;
3177}
3178
8a0867d6
LP		 3179static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3180 Service *s = SERVICE(u);
3181 int r = 0;
3182 Set *pid_set = NULL;
3183
3184 assert(s);
3185
3186 if (s->main_pid <= 0 && who == KILL_MAIN) {
3187 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3188 return -EINVAL;
3189 }
3190
3191 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3192 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3193 return -ENOENT;
3194 }
3195
3196 if (s->control_pid > 0)
3197 if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
3198 r = -errno;
3199
3200 if (s->main_pid > 0)
3201 if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0)
3202 r = -errno;
3203
3204 if (mode == KILL_CONTROL_GROUP) {
3205 int q;
3206
3207 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3208 return -ENOMEM;
3209
3210 /* Exclude the control/main pid from being killed via the cgroup */
3211 if (s->control_pid > 0)
3212 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3213 r = q;
3214 goto finish;
3215 }
3216
3217 if (s->main_pid > 0)
3218 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3219 r = q;
3220 goto finish;
3221 }
3222
3223 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
3224 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3225 r = q;
3226 }
3227
3228finish:
3229 if (pid_set)
3230 set_free(pid_set);
3231
3232 return r;
3233}
3234
94f04347
LP		 3235static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3236 [SERVICE_DEAD] = "dead",
3237 [SERVICE_START_PRE] = "start-pre",
3238 [SERVICE_START] = "start",
3239 [SERVICE_START_POST] = "start-post",
3240 [SERVICE_RUNNING] = "running",
80876c20 3241 [SERVICE_EXITED] = "exited",
94f04347
LP		 3242 [SERVICE_RELOAD] = "reload",
3243 [SERVICE_STOP] = "stop",
3244 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3245 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3246 [SERVICE_STOP_POST] = "stop-post",
3247 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3248 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3249 [SERVICE_FAILED] = "failed",
94f04347
LP		 3250 [SERVICE_AUTO_RESTART] = "auto-restart",
3251};
3252
3253DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3254
3255static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3256 [SERVICE_RESTART_NO] = "no",
3257 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3258 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3259 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3260 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3261};
3262
3263DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3264
3265static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3266 [SERVICE_SIMPLE] = "simple",
0d624a78 3267 [SERVICE_FORKING] = "forking",
34e9ba66 3268 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3269 [SERVICE_DBUS] = "dbus",
3270 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3271};
3272
3273DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3274
e537352b 3275static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3276 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3277 [SERVICE_EXEC_START] = "ExecStart",
3278 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3279 [SERVICE_EXEC_RELOAD] = "ExecReload",
3280 [SERVICE_EXEC_STOP] = "ExecStop",
3281 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3282};
3283
3284DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3285
c952c6ec
LP		 3286static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3287 [NOTIFY_NONE] = "none",
3288 [NOTIFY_MAIN] = "main",
3289 [NOTIFY_ALL] = "all"
3290};
3291
3292DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3293
87f0e418 3294const UnitVTable service_vtable = {
5cb5a6ff 3295 .suffix = ".service",
9e58ff9c 3296 .show_status = true,
5cb5a6ff 3297
034c6ed7
LP		 3298 .init = service_init,
3299 .done = service_done,
a16e1123
LP		 3300 .load = service_load,
3301
3302 .coldplug = service_coldplug,
034c6ed7 3303
5cb5a6ff
LP		 3304 .dump = service_dump,
3305
3306 .start = service_start,
3307 .stop = service_stop,
3308 .reload = service_reload,
3309
034c6ed7
LP		 3310 .can_reload = service_can_reload,
3311
8a0867d6
LP		 3312 .kill = service_kill,
3313
a16e1123
LP		 3314 .serialize = service_serialize,
3315 .deserialize_item = service_deserialize_item,
3316
5cb5a6ff 3317 .active_state = service_active_state,
10a94420 3318 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3319
07459bb6 3320#ifdef HAVE_SYSV_COMPAT
701cc384 3321 .check_gc = service_check_gc,
07459bb6 3322#endif
701cc384
LP		 3323 .check_snapshot = service_check_snapshot,
3324
034c6ed7
LP		 3325 .sigchld_event = service_sigchld_event,
3326 .timer_event = service_timer_event,
2c4104f0 3327
fdf20a31 3328 .reset_failed = service_reset_failed,
5632e374 3329
8e274523 3330 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3331 .notify_message = service_notify_message,
8e274523 3332
05e343b7
LP		 3333 .bus_name_owner_change = service_bus_name_owner_change,
3334 .bus_query_pid_done = service_bus_query_pid_done,
3335
c4e2ceae 3336 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3337 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3338 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3339
07459bb6 3340#ifdef HAVE_SYSV_COMPAT
2c4104f0 3341 .enumerate = service_enumerate
07459bb6 3342#endif
5cb5a6ff 3343};
Unnamed repository; edit this file 'description' to name the repository.