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[thirdparty/systemd.git] / src / service.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
2c4104f0
LP		 37
38#define COMMENTS "#;\n"
39#define NEWLINES "\n\r"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
09cd1ab1
LP		 42typedef enum RunlevelType {
43 RUNLEVEL_UP,
44 RUNLEVEL_DOWN,
fc5df99e 45 RUNLEVEL_SYSINIT
09cd1ab1
LP		 46} RunlevelType;
47
48static const struct {
49 const char *path;
50 const char *target;
51 const RunlevelType type;
52} rcnd_table[] = {
9d25f5ed 53 /* Standard SysV runlevels for start-up */
514f4ef5 54 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 55 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
56 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
57 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
58 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 59
d4054675 60#ifdef TARGET_SUSE
cfe243e3 61 /* SUSE style boot.d */
fc5df99e 62 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 63#endif
fbe9f3a9 64
d4054675 65#ifdef TARGET_DEBIAN
fbe9f3a9 66 /* Debian style rcS.d */
fc5df99e 67 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 68#endif
9d25f5ed
LP		 69
70 /* Standard SysV runlevels for shutdown */
71 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
72 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
73
74 /* Note that the order here matters, as we read the
75 directories in this order, and we want to make sure that
76 sysv_start_priority is known when we first load the
77 unit. And that value we only know from S links. Hence
78 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 79};
80
09cd1ab1 81#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 82/* #define RUNLEVELS_DOWN "06" */
83/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 84#endif
09cd1ab1 85
acbb0225 86static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 87 [SERVICE_DEAD] = UNIT_INACTIVE,
88 [SERVICE_START_PRE] = UNIT_ACTIVATING,
89 [SERVICE_START] = UNIT_ACTIVATING,
90 [SERVICE_START_POST] = UNIT_ACTIVATING,
91 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 92 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 93 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 94 [SERVICE_STOP] = UNIT_DEACTIVATING,
95 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
96 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
97 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
98 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 100 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 101 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 102};
5cb5a6ff 103
a16e1123
LP		 104static void service_init(Unit *u) {
105 Service *s = SERVICE(u);
106
107 assert(u);
108 assert(u->meta.load_state == UNIT_STUB);
109
110 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
111 s->restart_usec = DEFAULT_RESTART_USEC;
112 s->timer_watch.type = WATCH_INVALID;
07459bb6 113#ifdef HAVE_SYSV_COMPAT
a16e1123 114 s->sysv_start_priority = -1;
07459bb6 115#endif
a16e1123
LP		 116 s->socket_fd = -1;
117
118 exec_context_init(&s->exec_context);
119
120 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
121
122 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
123}
124
5e94833f
LP		 125static void service_unwatch_control_pid(Service *s) {
126 assert(s);
127
128 if (s->control_pid <= 0)
129 return;
130
131 unit_unwatch_pid(UNIT(s), s->control_pid);
132 s->control_pid = 0;
133}
134
135static void service_unwatch_main_pid(Service *s) {
136 assert(s);
137
138 if (s->main_pid <= 0)
139 return;
140
141 unit_unwatch_pid(UNIT(s), s->main_pid);
142 s->main_pid = 0;
143}
144
5925dd3c 145static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 146 pid_t ppid;
147
5925dd3c
LP		 148 assert(s);
149
150 if (pid <= 1)
151 return -EINVAL;
152
153 if (pid == getpid())
154 return -EINVAL;
155
e55224ca
LP		 156 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
157 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
158 s->meta.id, (unsigned long) pid);
159
5925dd3c
LP		 160 s->main_pid = pid;
161 s->main_pid_known = true;
162
b58b4116
LP		 163 exec_status_start(&s->main_exec_status, pid);
164
5925dd3c
LP		 165 return 0;
166}
167
4f2d528d
LP		 168static void service_close_socket_fd(Service *s) {
169 assert(s);
170
171 if (s->socket_fd < 0)
172 return;
173
174 close_nointr_nofail(s->socket_fd);
175 s->socket_fd = -1;
176}
177
6cf6bbc2
LP		 178static void service_connection_unref(Service *s) {
179 assert(s);
180
f976f3f6 181 if (!s->accept_socket)
6cf6bbc2
LP		 182 return;
183
f976f3f6
LP		 184 socket_connection_unref(s->accept_socket);
185 s->accept_socket = NULL;
6cf6bbc2
LP		 186}
187
87f0e418
LP		 188static void service_done(Unit *u) {
189 Service *s = SERVICE(u);
44d8db9e
LP		 190
191 assert(s);
192
193 free(s->pid_file);
194 s->pid_file = NULL;
195
07459bb6 196#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 197 free(s->sysv_path);
198 s->sysv_path = NULL;
199
8309400a
LP		 200 free(s->sysv_runlevels);
201 s->sysv_runlevels = NULL;
07459bb6 202#endif
8309400a 203
8c47c732
LP		 204 free(s->status_text);
205 s->status_text = NULL;
206
44d8db9e 207 exec_context_done(&s->exec_context);
e537352b 208 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 209 s->control_command = NULL;
210
211 /* This will leak a process, but at least no memory or any of
212 * our resources */
5e94833f
LP		 213 service_unwatch_main_pid(s);
214 service_unwatch_control_pid(s);
44d8db9e 215
05e343b7
LP		 216 if (s->bus_name) {
217 unit_unwatch_bus_name(UNIT(u), s->bus_name);
218 free(s->bus_name);
219 s->bus_name = NULL;
220 }
221
4f2d528d 222 service_close_socket_fd(s);
6cf6bbc2 223 service_connection_unref(s);
4f2d528d 224
f976f3f6
LP		 225 set_free(s->configured_sockets);
226
acbb0225 227 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 228}
229
07459bb6 230#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 231static char *sysv_translate_name(const char *name) {
232 char *r;
233
234 if (!(r = new(char, strlen(name) + sizeof(".service"))))
235 return NULL;
236
237 if (startswith(name, "boot."))
238 /* Drop SuSE-style boot. prefix */
239 strcpy(stpcpy(r, name + 5), ".service");
240 else if (endswith(name, ".sh"))
241 /* Drop Debian-style .sh suffix */
242 strcpy(stpcpy(r, name) - 3, ".service");
980900c1 243#ifdef TARGET_ARCH
9f151f29
LP		 244 else if (startswith(name, "@"))
245 /* Drop Arch-style background prefix */
246 strcpy(stpcpy(r, name + 1), ".service");
980900c1 247#endif
b7ccee3c
LP		 248 else
249 /* Normal init scripts */
250 strcpy(stpcpy(r, name), ".service");
251
252 return r;
253}
254
ee95669f 255static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 256
a7d3cc26
LP		 257 /* We silently ignore the $ prefix here. According to the LSB
258 * spec it simply indicates whether something is a
259 * standardized name or a distribution-specific one. Since we
260 * just follow what already exists and do not introduce new
261 * uses or names we don't care who introduced a new name. */
262
2c4104f0 263 static const char * const table[] = {
6464aa08 264 /* LSB defined facilities */
a7d3cc26
LP		 265 "local_fs", SPECIAL_LOCAL_FS_TARGET,
266 "network", SPECIAL_NETWORK_TARGET,
267 "named", SPECIAL_NSS_LOOKUP_TARGET,
268 "portmap", SPECIAL_RPCBIND_TARGET,
269 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
270 "syslog", SPECIAL_SYSLOG_TARGET,
271 "time", SPECIAL_RTC_SET_TARGET,
6464aa08
LP		 272
273 /* Debian extensions */
3177a49c 274#ifdef TARGET_DEBIAN
a7d3cc26 275 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 276#endif
a7d3cc26
LP		 277 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
278 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
3177a49c
LP		 279
280#ifdef TARGET_FEDORA
a7d3cc26
LP		 281 /* Fedora extensions */
282 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
283 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
284 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 285#endif
a7d3cc26
LP		 286
287 /* SuSE extensions */
288 "null", NULL
289
2c4104f0
LP		 290 };
291
292 unsigned i;
293 char *r;
ee95669f 294 const char *n;
2c4104f0 295
ee95669f
LP		 296 assert(name);
297 assert(_r);
a7d3cc26 298
ee95669f 299 n = *name == '$' ? name + 1 : name;
a7d3cc26 300
ee95669f 301 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 302
ee95669f
LP		 303 if (!streq(table[i], n))
304 continue;
2c4104f0 305
ee95669f
LP		 306 if (!table[i+1])
307 return 0;
308
309 if (!(r = strdup(table[i+1])))
310 return -ENOMEM;
311
312 goto finish;
313 }
2c4104f0 314
a7d3cc26
LP		 315 /* If we don't know this name, fallback heuristics to figure
316 * out whether something is a target or an service alias. */
317
2c4104f0 318 if (*name == '$')
ee95669f
LP		 319 /* Facilities starting with $ are most likely targets */
320 r = unit_name_build(n, NULL, ".target");
321 else if (filename && streq(name, filename))
322 /* Names equalling the file name of the services are redundant */
323 return 0;
32159d3a 324 else
ee95669f
LP		 325 /* Everything else we assume to be normal service names */
326 r = sysv_translate_name(n);
2c4104f0 327
32159d3a 328 if (!r)
2c4104f0
LP		 329 return -ENOMEM;
330
331finish:
332
333 if (_r)
334 *_r = r;
335
336 return 1;
337}
338
56d748b4 339static int sysv_fix_order(Service *s) {
2c4104f0
LP		 340 Meta *other;
341 int r;
342
343 assert(s);
344
345 if (s->sysv_start_priority < 0)
346 return 0;
347
23a177ef
LP		 348 /* For each pair of services where at least one lacks a LSB
349 * header, we use the start priority value to order things. */
2c4104f0 350
4cd1fbcc 351 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 352 Service *t;
353 UnitDependency d;
eeaafddc 354 bool special_s, special_t;
2c4104f0
LP		 355
356 t = (Service*) other;
357
358 if (s == t)
359 continue;
9f151f29
LP		 360
361 if (t->meta.load_state != UNIT_LOADED)
362 continue;
2c4104f0
LP		 363
364 if (t->sysv_start_priority < 0)
365 continue;
366
51a1a79d
LP		 367 /* If both units have modern headers we don't care
368 * about the priorities */
f21781d5
LP		 369 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
370 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 371 continue;
372
eeaafddc
LP		 373 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
374 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
375
376 if (special_t && !special_s)
377 d = UNIT_AFTER;
378 else if (special_s && !special_t)
379 d = UNIT_BEFORE;
380 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 381 d = UNIT_AFTER;
382 else if (t->sysv_start_priority > s->sysv_start_priority)
383 d = UNIT_BEFORE;
384 else
385 continue;
386
387 /* FIXME: Maybe we should compare the name here lexicographically? */
388
701cc384 389 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 390 return r;
391 }
392
393 return 0;
394}
395
396static ExecCommand *exec_command_new(const char *path, const char *arg1) {
397 ExecCommand *c;
398
399 if (!(c = new0(ExecCommand, 1)))
400 return NULL;
401
402 if (!(c->path = strdup(path))) {
403 free(c);
404 return NULL;
405 }
406
407 if (!(c->argv = strv_new(path, arg1, NULL))) {
408 free(c->path);
409 free(c);
410 return NULL;
411 }
412
413 return c;
414}
415
416static int sysv_exec_commands(Service *s) {
417 ExecCommand *c;
418
419 assert(s);
420 assert(s->sysv_path);
421
422 if (!(c = exec_command_new(s->sysv_path, "start")))
423 return -ENOMEM;
424 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
425
426 if (!(c = exec_command_new(s->sysv_path, "stop")))
427 return -ENOMEM;
428 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
429
430 if (!(c = exec_command_new(s->sysv_path, "reload")))
431 return -ENOMEM;
432 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
433
434 return 0;
435}
436
e537352b 437static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 438 FILE *f;
439 Unit *u;
440 unsigned line = 0;
441 int r;
442 enum {
443 NORMAL,
444 DESCRIPTION,
445 LSB,
446 LSB_DESCRIPTION
447 } state = NORMAL;
0b5d26f9 448 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 449
450 assert(s);
451 assert(path);
2c4104f0
LP		 452
453 u = UNIT(s);
454
455 if (!(f = fopen(path, "re"))) {
456 r = errno == ENOENT ? 0 : -errno;
457 goto finish;
458 }
459
2c4104f0
LP		 460 free(s->sysv_path);
461 if (!(s->sysv_path = strdup(path))) {
462 r = -ENOMEM;
463 goto finish;
464 }
465
466 while (!feof(f)) {
467 char l[LINE_MAX], *t;
468
469 if (!fgets(l, sizeof(l), f)) {
470 if (feof(f))
471 break;
472
473 r = -errno;
474 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
475 goto finish;
476 }
477
478 line++;
479
480 t = strstrip(l);
481 if (*t != '#')
482 continue;
483
484 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
485 state = LSB;
23a177ef 486 s->sysv_has_lsb = true;
2c4104f0
LP		 487 continue;
488 }
489
490 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
491 state = NORMAL;
492 continue;
493 }
494
495 t++;
496 t += strspn(t, WHITESPACE);
497
498 if (state == NORMAL) {
499
500 /* Try to parse Red Hat style chkconfig headers */
501
c2b35af6 502 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 503 int start_priority;
8309400a 504 char runlevels[16], *k;
2c4104f0
LP		 505
506 state = NORMAL;
507
8309400a
LP		 508 if (sscanf(t+10, "%15s %i %*i",
509 runlevels,
510 &start_priority) != 2) {
2c4104f0
LP		 511
512 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
513 continue;
514 }
515
fbe9f3a9
LP		 516 /* A start priority gathered from the
517 * symlink farms is preferred over the
518 * data from the LSB header. */
8309400a 519 if (start_priority < 0 || start_priority > 99)
2c4104f0 520 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 521 else if (s->sysv_start_priority < 0)
8309400a
LP		 522 s->sysv_start_priority = start_priority;
523
524 char_array_0(runlevels);
525 k = delete_chars(runlevels, WHITESPACE "-");
526
527 if (k[0]) {
528 char *d;
529
530 if (!(d = strdup(k))) {
531 r = -ENOMEM;
532 goto finish;
533 }
534
535 free(s->sysv_runlevels);
536 s->sysv_runlevels = d;
2c4104f0
LP		 537 }
538
0b5d26f9 539 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 540
541 size_t k = strlen(t);
542 char *d;
0b5d26f9 543 const char *j;
2c4104f0
LP		 544
545 if (t[k-1] == '\\') {
546 state = DESCRIPTION;
547 t[k-1] = 0;
548 }
549
0b5d26f9
LP		 550 if ((j = strstrip(t+12)) && *j) {
551 if (!(d = strdup(j))) {
552 r = -ENOMEM;
553 goto finish;
554 }
555 } else
556 d = NULL;
2c4104f0 557
0b5d26f9
LP		 558 free(chkconfig_description);
559 chkconfig_description = d;
2c4104f0 560
c2b35af6 561 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 562
563 char *fn;
564
565 state = NORMAL;
566
567 fn = strstrip(t+8);
568 if (!path_is_absolute(fn)) {
569 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
570 continue;
571 }
572
573 if (!(fn = strdup(fn))) {
574 r = -ENOMEM;
575 goto finish;
576 }
577
578 free(s->pid_file);
579 s->pid_file = fn;
580 }
581
582 } else if (state == DESCRIPTION) {
583
584 /* Try to parse Red Hat style description
585 * continuation */
586
587 size_t k = strlen(t);
0b5d26f9 588 char *j;
2c4104f0
LP		 589
590 if (t[k-1] == '\\')
591 t[k-1] = 0;
592 else
593 state = NORMAL;
594
0b5d26f9
LP		 595 if ((j = strstrip(t)) && *j) {
596 char *d = NULL;
597
598 if (chkconfig_description)
599 asprintf(&d, "%s %s", chkconfig_description, j);
600 else
601 d = strdup(j);
2c4104f0 602
0b5d26f9
LP		 603 if (!d) {
604 r = -ENOMEM;
605 goto finish;
606 }
607
608 free(chkconfig_description);
609 chkconfig_description = d;
610 }
2c4104f0
LP		 611
612 } else if (state == LSB || state == LSB_DESCRIPTION) {
613
c2b35af6 614 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 615 char *i, *w;
616 size_t z;
617
618 state = LSB;
619
f60f22df 620 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 621 char *n, *m;
622
623 if (!(n = strndup(w, z))) {
624 r = -ENOMEM;
625 goto finish;
626 }
627
ee95669f 628 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 629 free(n);
630
631 if (r < 0)
632 goto finish;
633
634 if (r == 0)
635 continue;
636
bd77d0fc
LP		 637 if (unit_name_to_type(m) == UNIT_SERVICE)
638 r = unit_add_name(u, m);
c68364b7
LP		 639 else {
640 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
641
642 if (s->sysv_enabled) {
643 int k;
644
645 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
646 r = k;
647 }
648 }
bd77d0fc 649
2c4104f0 650 if (r < 0)
43a37549 651 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 652
653 free(m);
2c4104f0
LP		 654 }
655
c2b35af6
LP		 656 } else if (startswith_no_case(t, "Required-Start:") ||
657 startswith_no_case(t, "Should-Start:") ||
658 startswith_no_case(t, "X-Start-Before:") ||
659 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 660 char *i, *w;
661 size_t z;
662
663 state = LSB;
664
f60f22df 665 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 666 char *n, *m;
667
668 if (!(n = strndup(w, z))) {
669 r = -ENOMEM;
670 goto finish;
671 }
672
ee95669f 673 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 674 free(n);
675
676 if (r < 0)
677 goto finish;
678
679 if (r == 0)
680 continue;
681
c2b35af6 682 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 683
684 if (r < 0)
43a37549 685 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 686
687 free(m);
2c4104f0 688 }
c2b35af6 689 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 690 char *k, *d;
691
692 state = LSB;
693
694 k = delete_chars(t+14, WHITESPACE "-");
695
696 if (k[0] != 0) {
697 if (!(d = strdup(k))) {
698 r = -ENOMEM;
699 goto finish;
700 }
701
702 free(s->sysv_runlevels);
703 s->sysv_runlevels = d;
704 }
2c4104f0 705
0b5d26f9
LP		 706 } else if (startswith_no_case(t, "Description:")) {
707 char *d, *j;
ed4c1cc6 708
2c4104f0
LP		 709 state = LSB_DESCRIPTION;
710
0b5d26f9
LP		 711 if ((j = strstrip(t+12)) && *j) {
712 if (!(d = strdup(j))) {
713 r = -ENOMEM;
714 goto finish;
715 }
716 } else
717 d = NULL;
2c4104f0 718
0b5d26f9
LP		 719 free(long_description);
720 long_description = d;
2c4104f0 721
ed4c1cc6 722 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 723 char *d, *j;
2c4104f0 724
2c4104f0
LP		 725 state = LSB;
726
0b5d26f9
LP		 727 if ((j = strstrip(t+18)) && *j) {
728 if (!(d = strdup(j))) {
729 r = -ENOMEM;
730 goto finish;
731 }
732 } else
733 d = NULL;
2c4104f0 734
0b5d26f9
LP		 735 free(short_description);
736 short_description = d;
2c4104f0 737
723c83fd
LP		 738 } else if (startswith_no_case(t, "X-Interactive:")) {
739 int b;
740
741 if ((b = parse_boolean(strstrip(t+14))) < 0) {
742 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
743 continue;
744 }
745
746 if (b)
747 s->exec_context.std_input = EXEC_INPUT_TTY;
748 else
749 s->exec_context.std_input = EXEC_INPUT_NULL;
750
2c4104f0
LP		 751 } else if (state == LSB_DESCRIPTION) {
752
753 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 754 char *j;
2c4104f0 755
0b5d26f9
LP		 756 if ((j = strstrip(t)) && *j) {
757 char *d = NULL;
758
759 if (long_description)
760 asprintf(&d, "%s %s", long_description, t);
761 else
762 d = strdup(j);
763
764 if (!d) {
765 r = -ENOMEM;
766 goto finish;
767 }
768
769 free(long_description);
770 long_description = d;
2c4104f0
LP		 771 }
772
2c4104f0
LP		 773 } else
774 state = LSB;
775 }
776 }
777 }
778
2c4104f0
LP		 779 if ((r = sysv_exec_commands(s)) < 0)
780 goto finish;
781
a40eb732 782 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 783 /* If there a runlevels configured for this service
784 * but none of the standard ones, then we assume this
785 * is some special kind of service (which might be
786 * needed for early boot) and don't create any links
787 * to it. */
788
a40eb732 789 s->meta.default_dependencies = false;
09cd1ab1 790
09cd1ab1
LP		 791 /* Don't timeout special services during boot (like fsck) */
792 s->timeout_usec = 0;
a40eb732 793 }
0fd030be 794
80876c20 795 /* Special setting for all SysV services */
1f48cf56 796 s->type = SERVICE_FORKING;
02ee865a 797 s->remain_after_exit = true;
1f48cf56 798 s->restart = SERVICE_ONCE;
8a2b3c09
LP		 799 s->exec_context.std_output =
800 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
801 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
2e22afe9 802 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 803
0b5d26f9
LP		 804 /* We use the long description only if
805 * no short description is set. */
806
807 if (short_description)
808 description = short_description;
809 else if (chkconfig_description)
810 description = chkconfig_description;
811 else if (long_description)
812 description = long_description;
813 else
814 description = NULL;
815
816 if (description) {
817 char *d;
818
819 if (!(d = strappend("LSB: ", description))) {
820 r = -ENOMEM;
821 goto finish;
822 }
823
824 u->meta.description = d;
825 }
826
e537352b 827 u->meta.load_state = UNIT_LOADED;
23a177ef 828 r = 0;
2c4104f0
LP		 829
830finish:
831
832 if (f)
833 fclose(f);
834
0b5d26f9
LP		 835 free(short_description);
836 free(long_description);
837 free(chkconfig_description);
838
2c4104f0
LP		 839 return r;
840}
841
e537352b 842static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 843 char **p;
844
845 assert(s);
846 assert(name);
847
d017c6ca
LP		 848 /* For SysV services we strip the boot. or .sh
849 * prefixes/suffixes. */
850 if (startswith(name, "boot.") ||
851 endswith(name, ".sh.service"))
852 return -ENOENT;
853
4cd1fbcc 854 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 855 char *path;
856 int r;
857
858 if (asprintf(&path, "%s/%s", *p, name) < 0)
859 return -ENOMEM;
860
861 assert(endswith(path, ".service"));
862 path[strlen(path)-8] = 0;
863
e537352b 864 r = service_load_sysv_path(s, path);
fbe9f3a9 865
4cd1fbcc 866 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 867 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 868 strcat(path, ".sh");
869 r = service_load_sysv_path(s, path);
870 }
871
2c4104f0
LP		 872 free(path);
873
4cd1fbcc 874 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 875 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 876
877 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
878 return -ENOMEM;
879
880 path[strlen(path)-8] = 0;
881 r = service_load_sysv_path(s, path);
882 free(path);
883 }
884
23a177ef 885 if (r < 0)
2c4104f0 886 return r;
23a177ef 887
4cd1fbcc 888 if ((s->meta.load_state != UNIT_STUB))
23a177ef 889 break;
2c4104f0
LP		 890 }
891
892 return 0;
893}
894
e537352b 895static int service_load_sysv(Service *s) {
2c4104f0
LP		 896 const char *t;
897 Iterator i;
898 int r;
899
5cb5a6ff
LP		 900 assert(s);
901
902 /* Load service data from SysV init scripts, preferably with
903 * LSB headers ... */
904
4cd1fbcc 905 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 906 return 0;
907
4cd1fbcc 908 if ((t = s->meta.id))
e537352b 909 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 910 return r;
911
4cd1fbcc
LP		 912 if (s->meta.load_state == UNIT_STUB)
913 SET_FOREACH(t, s->meta.names, i) {
914 if (t == s->meta.id)
e537352b
LP		 915 continue;
916
e364ad06 917 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 918 return r;
919
4cd1fbcc 920 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 921 break;
922 }
2c4104f0
LP		 923
924 return 0;
5cb5a6ff 925}
07459bb6 926#endif
5cb5a6ff 927
243b1432
LP		 928static int service_verify(Service *s) {
929 assert(s);
930
4cd1fbcc 931 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 932 return 0;
933
934 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 935 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 936 return -EINVAL;
937 }
938
34e9ba66
LP		 939 if (s->type != SERVICE_ONESHOT &&
940 s->exec_command[SERVICE_EXEC_START]->command_next) {
941 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 942 return -EINVAL;
943 }
944
05e343b7 945 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 946 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
947 return -EINVAL;
948 }
949
2e22afe9 950 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 951 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 952 return -EINVAL;
953 }
954
243b1432
LP		 955 return 0;
956}
957
a40eb732
LP		 958static int service_add_default_dependencies(Service *s) {
959 int r;
960
961 assert(s);
962
963 /* Add a number of automatic dependencies useful for the
964 * majority of services. */
965
966 /* First, pull in base system */
967 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
968
969 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
970 return r;
971
972 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
973
974 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
975 return r;
976 }
977
978 /* Second, activate normal shutdown */
69dd2852 979 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 980}
981
e537352b
LP		 982static int service_load(Unit *u) {
983 int r;
984 Service *s = SERVICE(u);
985
986 assert(s);
1e2e8133 987
5cb5a6ff 988 /* Load a .service file */
e537352b 989 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 990 return r;
991
07459bb6 992#ifdef HAVE_SYSV_COMPAT
bd77d0fc 993 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 994 if (u->meta.load_state == UNIT_STUB)
995 if ((r = service_load_sysv(s)) < 0)
23a177ef 996 return r;
07459bb6 997#endif
d46de8a1 998
23a177ef 999 /* Still nothing found? Then let's give up */
e537352b 1000 if (u->meta.load_state == UNIT_STUB)
23a177ef 1001 return -ENOENT;
034c6ed7 1002
23a177ef
LP		 1003 /* We were able to load something, then let's add in the
1004 * dropin directories. */
1005 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1006 return r;
23a177ef
LP		 1007
1008 /* This is a new unit? Then let's add in some extras */
e537352b 1009 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1010 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1011 return r;
1012
1013 if ((r = unit_add_default_cgroup(u)) < 0)
1014 return r;
1015
07459bb6 1016#ifdef HAVE_SYSV_COMPAT
56d748b4 1017 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1018 return r;
07459bb6 1019#endif
05e343b7 1020
ee0dd802 1021 if (s->bus_name)
05e343b7 1022 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1023 return r;
c952c6ec
LP		 1024
1025 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1026 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1027
1028 if (s->type == SERVICE_DBUS || s->bus_name)
1029 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1030 return r;
1031
1032 if (s->meta.default_dependencies)
1033 if ((r = service_add_default_dependencies(s)) < 0)
1034 return r;
8e274523
LP		 1035 }
1036
243b1432 1037 return service_verify(s);
034c6ed7
LP		 1038}
1039
87f0e418 1040static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1041
5cb5a6ff 1042 ServiceExecCommand c;
87f0e418 1043 Service *s = SERVICE(u);
47be870b
LP		 1044 const char *prefix2;
1045 char *p2;
5cb5a6ff
LP		 1046
1047 assert(s);
1048
47be870b
LP		 1049 p2 = strappend(prefix, "\t");
1050 prefix2 = p2 ? p2 : prefix;
44d8db9e 1051
5cb5a6ff 1052 fprintf(f,
81a2b7ce
LP		 1053 "%sService State: %s\n"
1054 "%sPermissionsStartOnly: %s\n"
8e274523 1055 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1056 "%sRemainAfterExit: %s\n"
c952c6ec 1057 "%sType: %s\n"
2cf3143a 1058 "%sRestart: %s\n"
c952c6ec 1059 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1060 prefix, service_state_to_string(s->state),
1061 prefix, yes_no(s->permissions_start_only),
8e274523 1062 prefix, yes_no(s->root_directory_start_only),
02ee865a 1063 prefix, yes_no(s->remain_after_exit),
c952c6ec 1064 prefix, service_type_to_string(s->type),
2cf3143a 1065 prefix, service_restart_to_string(s->restart),
c952c6ec 1066 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1067
70123e68
LP		 1068 if (s->control_pid > 0)
1069 fprintf(f,
bb00e604
LP		 1070 "%sControl PID: %lu\n",
1071 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1072
1073 if (s->main_pid > 0)
1074 fprintf(f,
bb00e604
LP		 1075 "%sMain PID: %lu\n",
1076 prefix, (unsigned long) s->main_pid);
70123e68 1077
034c6ed7
LP		 1078 if (s->pid_file)
1079 fprintf(f,
1080 "%sPIDFile: %s\n",
1081 prefix, s->pid_file);
1082
05e343b7
LP		 1083 if (s->bus_name)
1084 fprintf(f,
1085 "%sBusName: %s\n"
1086 "%sBus Name Good: %s\n",
1087 prefix, s->bus_name,
1088 prefix, yes_no(s->bus_name_good));
1089
5cb5a6ff
LP		 1090 exec_context_dump(&s->exec_context, f, prefix);
1091
e537352b 1092 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1093
44d8db9e
LP		 1094 if (!s->exec_command[c])
1095 continue;
1096
40d50879 1097 fprintf(f, "%s-> %s:\n",
94f04347 1098 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1099
1100 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1101 }
44d8db9e 1102
07459bb6 1103#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1104 if (s->sysv_path)
1105 fprintf(f,
23a177ef
LP		 1106 "%sSysV Init Script Path: %s\n"
1107 "%sSysV Init Script has LSB Header: %s\n",
1108 prefix, s->sysv_path,
1109 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 1110
1111 if (s->sysv_start_priority >= 0)
1112 fprintf(f,
5de6b302
LP		 1113 "%sSysVStartPriority: %i\n"
1114 "%sSysVEnabled: %s\n",
1115 prefix, s->sysv_start_priority,
1116 prefix, yes_no(s->sysv_enabled));
2c4104f0 1117
8309400a
LP		 1118 if (s->sysv_runlevels)
1119 fprintf(f, "%sSysVRunLevels: %s\n",
1120 prefix, s->sysv_runlevels);
07459bb6 1121#endif
23a177ef 1122
8c47c732
LP		 1123 if (s->status_text)
1124 fprintf(f, "%sStatus Text: %s\n",
1125 prefix, s->status_text);
1126
47be870b 1127 free(p2);
5cb5a6ff
LP		 1128}
1129
034c6ed7
LP		 1130static int service_load_pid_file(Service *s) {
1131 char *k;
034c6ed7 1132 int r;
5925dd3c 1133 pid_t pid;
034c6ed7
LP		 1134
1135 assert(s);
1136
1137 if (s->main_pid_known)
1138 return 0;
1139
5e94833f
LP		 1140 assert(s->main_pid <= 0);
1141
034c6ed7
LP		 1142 if (!s->pid_file)
1143 return -ENOENT;
1144
1145 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1146 return r;
1147
5925dd3c
LP		 1148 r = parse_pid(k, &pid);
1149 free(k);
034c6ed7 1150
5925dd3c
LP		 1151 if (r < 0)
1152 return r;
406eaf93 1153
5925dd3c
LP		 1154 if (kill(pid, 0) < 0 && errno != EPERM) {
1155 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1156 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1157 return -ESRCH;
1158 }
1159
5925dd3c 1160 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1161 return r;
1162
5925dd3c
LP		 1163 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1164 /* FIXME: we need to do something here */
1165 return r;
034c6ed7
LP		 1166
1167 return 0;
1168}
1169
3e33402a
LP		 1170static int service_get_sockets(Service *s, Set **_set) {
1171 Set *set;
ceee3d82
LP		 1172 Iterator i;
1173 char *t;
3e33402a 1174 int r;
ceee3d82
LP		 1175
1176 assert(s);
3e33402a
LP		 1177 assert(_set);
1178
6cf6bbc2
LP		 1179 if (s->socket_fd >= 0)
1180 return 0;
1181
f976f3f6
LP		 1182 if (!set_isempty(s->configured_sockets))
1183 return 0;
1184
3e33402a
LP		 1185 /* Collects all Socket objects that belong to this
1186 * service. Note that a service might have multiple sockets
1187 * via multiple names. */
1188
1189 if (!(set = set_new(NULL, NULL)))
1190 return -ENOMEM;
ceee3d82 1191
4cd1fbcc 1192 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1193 char *k;
1194 Unit *p;
1195
1196 /* Look for all socket objects that go by any of our
1197 * units and collect their fds */
1198
3e33402a
LP		 1199 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1200 r = -ENOMEM;
1201 goto fail;
1202 }
ceee3d82 1203
4cd1fbcc 1204 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1205 free(k);
1206
8d567588
LP		 1207 if (!p)
1208 continue;
ceee3d82 1209
3e33402a
LP		 1210 if ((r = set_put(set, p)) < 0)
1211 goto fail;
ceee3d82
LP		 1212 }
1213
3e33402a
LP		 1214 *_set = set;
1215 return 0;
1216
1217fail:
1218 set_free(set);
1219 return r;
1220}
1221
e537352b 1222static int service_notify_sockets_dead(Service *s) {
3e33402a 1223 Iterator i;
f976f3f6 1224 Set *set, *free_set = NULL;
47be870b 1225 Socket *sock;
3e33402a
LP		 1226 int r;
1227
1228 assert(s);
1229
f976f3f6
LP		 1230 /* Notifies all our sockets when we die */
1231
6cf6bbc2
LP		 1232 if (s->socket_fd >= 0)
1233 return 0;
1234
f976f3f6
LP		 1235 if (!set_isempty(s->configured_sockets))
1236 set = s->configured_sockets;
1237 else {
1238 if ((r = service_get_sockets(s, &free_set)) < 0)
1239 return r;
1240
1241 set = free_set;
1242 }
3e33402a 1243
47be870b
LP		 1244 SET_FOREACH(sock, set, i)
1245 socket_notify_service_dead(sock);
3e33402a 1246
f976f3f6 1247 set_free(free_set);
3e33402a 1248
ceee3d82
LP		 1249 return 0;
1250}
1251
034c6ed7
LP		 1252static void service_set_state(Service *s, ServiceState state) {
1253 ServiceState old_state;
5cb5a6ff
LP		 1254 assert(s);
1255
034c6ed7 1256 old_state = s->state;
5cb5a6ff 1257 s->state = state;
034c6ed7
LP		 1258
1259 if (state != SERVICE_START_PRE &&
1260 state != SERVICE_START &&
1261 state != SERVICE_START_POST &&
1262 state != SERVICE_RELOAD &&
1263 state != SERVICE_STOP &&
1264 state != SERVICE_STOP_SIGTERM &&
1265 state != SERVICE_STOP_SIGKILL &&
1266 state != SERVICE_STOP_POST &&
1267 state != SERVICE_FINAL_SIGTERM &&
1268 state != SERVICE_FINAL_SIGKILL &&
1269 state != SERVICE_AUTO_RESTART)
acbb0225 1270 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1271
7d55e835
LP		 1272 if (state != SERVICE_START &&
1273 state != SERVICE_START_POST &&
034c6ed7
LP		 1274 state != SERVICE_RUNNING &&
1275 state != SERVICE_RELOAD &&
1276 state != SERVICE_STOP &&
1277 state != SERVICE_STOP_SIGTERM &&
1278 state != SERVICE_STOP_SIGKILL)
5e94833f 1279 service_unwatch_main_pid(s);
034c6ed7
LP		 1280
1281 if (state != SERVICE_START_PRE &&
1282 state != SERVICE_START &&
1283 state != SERVICE_START_POST &&
1284 state != SERVICE_RELOAD &&
1285 state != SERVICE_STOP &&
1286 state != SERVICE_STOP_SIGTERM &&
1287 state != SERVICE_STOP_SIGKILL &&
1288 state != SERVICE_STOP_POST &&
1289 state != SERVICE_FINAL_SIGTERM &&
e537352b 1290 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1291 service_unwatch_control_pid(s);
034c6ed7 1292 s->control_command = NULL;
a16e1123 1293 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1294 }
034c6ed7 1295
ceee3d82
LP		 1296 if (state == SERVICE_DEAD ||
1297 state == SERVICE_STOP ||
1298 state == SERVICE_STOP_SIGTERM ||
1299 state == SERVICE_STOP_SIGKILL ||
1300 state == SERVICE_STOP_POST ||
1301 state == SERVICE_FINAL_SIGTERM ||
1302 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1303 state == SERVICE_FAILED ||
ceee3d82 1304 state == SERVICE_AUTO_RESTART)
e537352b 1305 service_notify_sockets_dead(s);
ceee3d82 1306
4f2d528d
LP		 1307 if (state != SERVICE_START_PRE &&
1308 state != SERVICE_START &&
6cf6bbc2
LP		 1309 state != SERVICE_START_POST &&
1310 state != SERVICE_RUNNING &&
1311 state != SERVICE_RELOAD &&
1312 state != SERVICE_STOP &&
1313 state != SERVICE_STOP_SIGTERM &&
1314 state != SERVICE_STOP_SIGKILL &&
1315 state != SERVICE_STOP_POST &&
1316 state != SERVICE_FINAL_SIGTERM &&
1317 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1318 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1319 service_close_socket_fd(s);
6cf6bbc2
LP		 1320 service_connection_unref(s);
1321 }
4f2d528d 1322
f6023656
LP		 1323 /* For the inactive states unit_notify() will trim the cgroup,
1324 * but for exit we have to do that ourselves... */
1325 if (state == SERVICE_EXITED)
1326 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1327
e537352b 1328 if (old_state != state)
4cd1fbcc 1329 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1330
1331 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1332}
1333
a16e1123
LP		 1334static int service_coldplug(Unit *u) {
1335 Service *s = SERVICE(u);
1336 int r;
1337
1338 assert(s);
1339 assert(s->state == SERVICE_DEAD);
1340
1341 if (s->deserialized_state != s->state) {
1342
1343 if (s->deserialized_state == SERVICE_START_PRE ||
1344 s->deserialized_state == SERVICE_START ||
1345 s->deserialized_state == SERVICE_START_POST ||
1346 s->deserialized_state == SERVICE_RELOAD ||
1347 s->deserialized_state == SERVICE_STOP ||
1348 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1349 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1350 s->deserialized_state == SERVICE_STOP_POST ||
1351 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1352 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1353 s->deserialized_state == SERVICE_AUTO_RESTART) {
1354
1355 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1356 usec_t k;
1357
1358 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1359
1360 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1361 return r;
1362 }
1363 }
a16e1123
LP		 1364
1365 if ((s->deserialized_state == SERVICE_START &&
1366 (s->type == SERVICE_FORKING ||
8c47c732 1367 s->type == SERVICE_DBUS ||
34e9ba66 1368 s->type == SERVICE_ONESHOT ||
8c47c732 1369 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1370 s->deserialized_state == SERVICE_START_POST ||
1371 s->deserialized_state == SERVICE_RUNNING ||
1372 s->deserialized_state == SERVICE_RELOAD ||
1373 s->deserialized_state == SERVICE_STOP ||
1374 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1375 s->deserialized_state == SERVICE_STOP_SIGKILL)
1376 if (s->main_pid > 0)
1377 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1378 return r;
1379
1380 if (s->deserialized_state == SERVICE_START_PRE ||
1381 s->deserialized_state == SERVICE_START ||
1382 s->deserialized_state == SERVICE_START_POST ||
1383 s->deserialized_state == SERVICE_RELOAD ||
1384 s->deserialized_state == SERVICE_STOP ||
1385 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1386 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1387 s->deserialized_state == SERVICE_STOP_POST ||
1388 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1389 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1390 if (s->control_pid > 0)
1391 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1392 return r;
1393
1394 service_set_state(s, s->deserialized_state);
1395 }
1396
1397 return 0;
1398}
1399
44d8db9e
LP		 1400static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1401 Iterator i;
1402 int r;
1403 int *rfds = NULL;
1404 unsigned rn_fds = 0;
f976f3f6 1405 Set *set, *free_set = NULL;
47be870b 1406 Socket *sock;
44d8db9e
LP		 1407
1408 assert(s);
1409 assert(fds);
1410 assert(n_fds);
1411
6cf6bbc2
LP		 1412 if (s->socket_fd >= 0)
1413 return 0;
1414
f976f3f6
LP		 1415 if (!set_isempty(s->configured_sockets))
1416 set = s->configured_sockets;
1417 else {
1418 if ((r = service_get_sockets(s, &free_set)) < 0)
1419 return r;
1420
1421 set = free_set;
1422 }
3e33402a 1423
47be870b 1424 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1425 int *cfds;
1426 unsigned cn_fds;
1427
47be870b 1428 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1429 goto fail;
1430
1431 if (!cfds)
1432 continue;
1433
1434 if (!rfds) {
1435 rfds = cfds;
1436 rn_fds = cn_fds;
1437 } else {
1438 int *t;
1439
1440 if (!(t = new(int, rn_fds+cn_fds))) {
1441 free(cfds);
1442 r = -ENOMEM;
1443 goto fail;
1444 }
1445
1446 memcpy(t, rfds, rn_fds);
1447 memcpy(t+rn_fds, cfds, cn_fds);
1448 free(rfds);
1449 free(cfds);
1450
1451 rfds = t;
1452 rn_fds = rn_fds+cn_fds;
1453 }
1454 }
1455
1456 *fds = rfds;
1457 *n_fds = rn_fds;
3e33402a 1458
f976f3f6 1459 set_free(free_set);
3e33402a 1460
44d8db9e
LP		 1461 return 0;
1462
1463fail:
3e33402a 1464 set_free(set);
44d8db9e 1465 free(rfds);
3e33402a 1466
44d8db9e
LP		 1467 return r;
1468}
1469
81a2b7ce
LP		 1470static int service_spawn(
1471 Service *s,
1472 ExecCommand *c,
1473 bool timeout,
1474 bool pass_fds,
1475 bool apply_permissions,
1476 bool apply_chroot,
1e3ad081 1477 bool apply_tty_stdin,
c952c6ec 1478 bool set_notify_socket,
81a2b7ce
LP		 1479 pid_t *_pid) {
1480
034c6ed7
LP		 1481 pid_t pid;
1482 int r;
6cf6bbc2 1483 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1484 unsigned n_fds = 0, n_env = 0;
1485 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1486
1487 assert(s);
1488 assert(c);
1489 assert(_pid);
1490
6cf6bbc2
LP		 1491 if (pass_fds ||
1492 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1493 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1494 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1495
4f2d528d
LP		 1496 if (s->socket_fd >= 0) {
1497 fds = &s->socket_fd;
1498 n_fds = 1;
6cf6bbc2
LP		 1499 } else {
1500 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1501 goto fail;
1502
1503 fds = fdsbuf;
1504 }
4f2d528d 1505 }
44d8db9e 1506
e558336f 1507 if (timeout && s->timeout_usec) {
acbb0225 1508 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1509 goto fail;
1510 } else
acbb0225 1511 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1512
9e2f7c11
LP		 1513 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1514 r = -ENOMEM;
1515 goto fail;
1516 }
1517
2105e76a
LP		 1518 if (!(our_env = new0(char*, 3))) {
1519 r = -ENOMEM;
1520 goto fail;
1521 }
c952c6ec 1522
2105e76a
LP		 1523 if (set_notify_socket)
1524 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1525 r = -ENOMEM;
1526 goto fail;
1527 }
1528
2105e76a
LP		 1529 if (s->main_pid > 0)
1530 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1531 r = -ENOMEM;
1532 goto fail;
1533 }
2105e76a
LP		 1534
1535 if (!(final_env = strv_env_merge(2,
1536 s->meta.manager->environment,
1537 our_env,
1538 NULL))) {
1539 r = -ENOMEM;
1540 goto fail;
1541 }
c952c6ec 1542
9e2f7c11
LP		 1543 r = exec_spawn(c,
1544 argv,
1545 &s->exec_context,
1546 fds, n_fds,
2105e76a 1547 final_env,
9e2f7c11
LP		 1548 apply_permissions,
1549 apply_chroot,
1e3ad081 1550 apply_tty_stdin,
4cd1fbcc
LP		 1551 s->meta.manager->confirm_spawn,
1552 s->meta.cgroup_bondings,
9e2f7c11
LP		 1553 &pid);
1554
9e2f7c11 1555 if (r < 0)
034c6ed7
LP		 1556 goto fail;
1557
4f2d528d 1558
87f0e418 1559 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1560 /* FIXME: we need to do something here */
1561 goto fail;
1562
2105e76a
LP		 1563 free(fdsbuf);
1564 strv_free(argv);
1565 strv_free(our_env);
1566 strv_free(final_env);
1567
034c6ed7
LP		 1568 *_pid = pid;
1569
5cb5a6ff 1570 return 0;
034c6ed7
LP		 1571
1572fail:
2105e76a 1573 free(fdsbuf);
c952c6ec 1574 strv_free(argv);
2105e76a
LP		 1575 strv_free(our_env);
1576 strv_free(final_env);
c952c6ec 1577
034c6ed7 1578 if (timeout)
acbb0225 1579 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1580
1581 return r;
1582}
1583
80876c20
LP		 1584static int main_pid_good(Service *s) {
1585 assert(s);
1586
1587 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1588 * don't know */
1589
1590 /* If we know the pid file, then lets just check if it is
1591 * still valid */
1592 if (s->main_pid_known)
1593 return s->main_pid > 0;
1594
1595 /* We don't know the pid */
1596 return -EAGAIN;
1597}
1598
1599static int control_pid_good(Service *s) {
1600 assert(s);
1601
1602 return s->control_pid > 0;
1603}
1604
1605static int cgroup_good(Service *s) {
1606 int r;
1607
1608 assert(s);
1609
4cd1fbcc 1610 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1611 return r;
1612
1613 return !r;
1614}
1615
034c6ed7
LP		 1616static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1617 int r;
1618 assert(s);
1619
1620 if (!success)
1621 s->failure = true;
1622
1623 if (allow_restart &&
47342320 1624 !s->forbid_restart &&
034c6ed7
LP		 1625 (s->restart == SERVICE_RESTART_ALWAYS ||
1626 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1627
acbb0225 1628 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1629 goto fail;
1630
1631 service_set_state(s, SERVICE_AUTO_RESTART);
1632 } else
fdf20a31 1633 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1634
47342320
LP		 1635 s->forbid_restart = false;
1636
034c6ed7
LP		 1637 return;
1638
1639fail:
4cd1fbcc 1640 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1641 service_enter_dead(s, false, false);
1642}
1643
1644static void service_enter_signal(Service *s, ServiceState state, bool success);
1645
1646static void service_enter_stop_post(Service *s, bool success) {
1647 int r;
1648 assert(s);
1649
1650 if (!success)
1651 s->failure = true;
1652
5e94833f
LP		 1653 service_unwatch_control_pid(s);
1654
a16e1123 1655 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1656 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1657 if ((r = service_spawn(s,
1658 s->control_command,
1659 true,
1660 false,
1661 !s->permissions_start_only,
1662 !s->root_directory_start_only,
1e3ad081 1663 true,
c952c6ec 1664 false,
81a2b7ce 1665 &s->control_pid)) < 0)
034c6ed7
LP		 1666 goto fail;
1667
d6ea93e3 1668
80876c20
LP		 1669 service_set_state(s, SERVICE_STOP_POST);
1670 } else
1671 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1672
1673 return;
1674
1675fail:
4cd1fbcc 1676 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1677 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1678}
1679
1680static void service_enter_signal(Service *s, ServiceState state, bool success) {
1681 int r;
ca949c9d
LP		 1682 Set *pid_set = NULL;
1683 bool wait_for_exit = false;
034c6ed7
LP		 1684
1685 assert(s);
1686
1687 if (!success)
1688 s->failure = true;
1689
2e22afe9
LP		 1690 if (s->exec_context.kill_mode != KILL_NONE) {
1691 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1692
ca949c9d
LP		 1693 if (s->main_pid > 0) {
1694 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1695 -s->main_pid :
1696 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1697
ca949c9d
LP		 1698 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1699 else
1700 wait_for_exit = true;
034c6ed7
LP		 1701 }
1702
ca949c9d
LP		 1703 if (s->control_pid > 0) {
1704 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1705 -s->control_pid :
1706 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1707
ca949c9d
LP		 1708 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1709 else
1710 wait_for_exit = true;
1711 }
50159e6a 1712
ca949c9d 1713 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1714
ca949c9d
LP		 1715 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1716 r = -ENOMEM;
50159e6a 1717 goto fail;
ca949c9d
LP		 1718 }
1719
1720 /* Exclude the main/control pids from being killed via the cgroup */
1721 if (s->main_pid > 0)
1722 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1723 goto fail;
1724
1725 if (s->control_pid > 0)
1726 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1727 goto fail;
1728
1729 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1730 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1731 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1732 } else if (r > 0)
ca949c9d
LP		 1733 wait_for_exit = true;
1734
1735 set_free(pid_set);
50159e6a 1736 }
d6ea93e3 1737 }
034c6ed7 1738
ca949c9d 1739 if (wait_for_exit) {
e558336f
LP		 1740 if (s->timeout_usec > 0)
1741 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1742 goto fail;
d6ea93e3 1743
80876c20
LP		 1744 service_set_state(s, state);
1745 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1746 service_enter_stop_post(s, true);
1747 else
034c6ed7
LP		 1748 service_enter_dead(s, true, true);
1749
1750 return;
1751
1752fail:
4cd1fbcc 1753 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1754
80876c20 1755 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1756 service_enter_stop_post(s, false);
1757 else
1758 service_enter_dead(s, false, true);
ca949c9d
LP		 1759
1760 if (pid_set)
1761 set_free(pid_set);
034c6ed7
LP		 1762}
1763
1764static void service_enter_stop(Service *s, bool success) {
1765 int r;
5925dd3c 1766
034c6ed7
LP		 1767 assert(s);
1768
1769 if (!success)
1770 s->failure = true;
1771
5e94833f
LP		 1772 service_unwatch_control_pid(s);
1773
a16e1123 1774 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1775 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1776 if ((r = service_spawn(s,
1777 s->control_command,
1778 true,
1779 false,
1780 !s->permissions_start_only,
1781 !s->root_directory_start_only,
c952c6ec 1782 false,
1e3ad081 1783 false,
e55224ca 1784 &s->control_pid)) < 0)
034c6ed7
LP		 1785 goto fail;
1786
80876c20
LP		 1787 service_set_state(s, SERVICE_STOP);
1788 } else
034c6ed7
LP		 1789 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1790
1791 return;
1792
1793fail:
4cd1fbcc 1794 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1795 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1796}
1797
80876c20 1798static void service_enter_running(Service *s, bool success) {
4eab639f 1799 int main_pid_ok, cgroup_ok;
80876c20
LP		 1800 assert(s);
1801
1802 if (!success)
1803 s->failure = true;
1804
4eab639f
LP		 1805 main_pid_ok = main_pid_good(s);
1806 cgroup_ok = cgroup_good(s);
1807
1808 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1809 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1810 service_set_state(s, SERVICE_RUNNING);
02ee865a 1811 else if (s->remain_after_exit)
80876c20
LP		 1812 service_set_state(s, SERVICE_EXITED);
1813 else
1814 service_enter_stop(s, true);
1815}
1816
034c6ed7
LP		 1817static void service_enter_start_post(Service *s) {
1818 int r;
1819 assert(s);
1820
5e94833f
LP		 1821 service_unwatch_control_pid(s);
1822
a16e1123 1823 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1824 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1825 if ((r = service_spawn(s,
1826 s->control_command,
1827 true,
1828 false,
1829 !s->permissions_start_only,
1830 !s->root_directory_start_only,
c952c6ec 1831 false,
1e3ad081 1832 false,
e55224ca 1833 &s->control_pid)) < 0)
034c6ed7
LP		 1834 goto fail;
1835
80876c20
LP		 1836 service_set_state(s, SERVICE_START_POST);
1837 } else
1838 service_enter_running(s, true);
034c6ed7
LP		 1839
1840 return;
1841
1842fail:
4cd1fbcc 1843 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1844 service_enter_stop(s, false);
1845}
1846
1847static void service_enter_start(Service *s) {
1848 pid_t pid;
1849 int r;
1850
1851 assert(s);
1852
1853 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1854 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1855
80876c20
LP		 1856 if (s->type == SERVICE_FORKING)
1857 service_unwatch_control_pid(s);
1858 else
1859 service_unwatch_main_pid(s);
1860
34e9ba66
LP		 1861 s->control_command_id = SERVICE_EXEC_START;
1862 s->control_command = s->exec_command[SERVICE_EXEC_START];
1863
81a2b7ce 1864 if ((r = service_spawn(s,
34e9ba66 1865 s->control_command,
8c47c732 1866 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1867 true,
1868 true,
1869 true,
1e3ad081 1870 true,
c952c6ec 1871 s->notify_access != NOTIFY_NONE,
81a2b7ce 1872 &pid)) < 0)
034c6ed7
LP		 1873 goto fail;
1874
1875 if (s->type == SERVICE_SIMPLE) {
1876 /* For simple services we immediately start
1877 * the START_POST binaries. */
1878
5925dd3c 1879 service_set_main_pid(s, pid);
034c6ed7
LP		 1880 service_enter_start_post(s);
1881
1882 } else if (s->type == SERVICE_FORKING) {
1883
1884 /* For forking services we wait until the start
1885 * process exited. */
1886
e55224ca 1887 s->control_pid = pid;
80876c20
LP		 1888 service_set_state(s, SERVICE_START);
1889
34e9ba66 1890 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 1891 s->type == SERVICE_DBUS ||
1892 s->type == SERVICE_NOTIFY) {
7d55e835 1893
34e9ba66 1894 /* For oneshot services we wait until the start
7d55e835
LP		 1895 * process exited, too, but it is our main process. */
1896
05e343b7 1897 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1898 * but wait for the bus name to appear on the
1899 * bus. Notify services are similar. */
05e343b7 1900
5925dd3c 1901 service_set_main_pid(s, pid);
80876c20 1902 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1903 } else
1904 assert_not_reached("Unknown service type");
1905
1906 return;
1907
1908fail:
4cd1fbcc 1909 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1910 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1911}
1912
1913static void service_enter_start_pre(Service *s) {
1914 int r;
1915
1916 assert(s);
1917
5e94833f
LP		 1918 service_unwatch_control_pid(s);
1919
a16e1123 1920 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1921 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1922 if ((r = service_spawn(s,
1923 s->control_command,
1924 true,
1925 false,
1926 !s->permissions_start_only,
1927 !s->root_directory_start_only,
1e3ad081 1928 true,
c952c6ec 1929 false,
e55224ca 1930 &s->control_pid)) < 0)
034c6ed7
LP		 1931 goto fail;
1932
80876c20
LP		 1933 service_set_state(s, SERVICE_START_PRE);
1934 } else
034c6ed7
LP		 1935 service_enter_start(s);
1936
1937 return;
1938
1939fail:
4cd1fbcc 1940 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1941 service_enter_dead(s, false, true);
1942}
1943
1944static void service_enter_restart(Service *s) {
1945 int r;
398ef8ba
LP		 1946 DBusError error;
1947
034c6ed7 1948 assert(s);
398ef8ba 1949 dbus_error_init(&error);
034c6ed7 1950
9ea9a0c8
LP		 1951 service_enter_dead(s, true, false);
1952
7b2603e6 1953 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 1954 goto fail;
1955
4cd1fbcc 1956 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 1957 return;
1958
1959fail:
398ef8ba 1960 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 1961 service_enter_dead(s, false, false);
398ef8ba
LP		 1962
1963 dbus_error_free(&error);
034c6ed7
LP		 1964}
1965
1966static void service_enter_reload(Service *s) {
1967 int r;
1968
1969 assert(s);
1970
5e94833f
LP		 1971 service_unwatch_control_pid(s);
1972
a16e1123 1973 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 1974 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 1975 if ((r = service_spawn(s,
1976 s->control_command,
1977 true,
1978 false,
1979 !s->permissions_start_only,
1980 !s->root_directory_start_only,
c952c6ec 1981 false,
1e3ad081 1982 false,
e55224ca 1983 &s->control_pid)) < 0)
034c6ed7
LP		 1984 goto fail;
1985
80876c20
LP		 1986 service_set_state(s, SERVICE_RELOAD);
1987 } else
1988 service_enter_running(s, true);
034c6ed7
LP		 1989
1990 return;
1991
1992fail:
4cd1fbcc 1993 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1994 service_enter_stop(s, false);
1995}
1996
34e9ba66 1997static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 1998 int r;
1999
2000 assert(s);
2001 assert(s->control_command);
2002 assert(s->control_command->command_next);
2003
2004 if (!success)
2005 s->failure = true;
2006
34e9ba66 2007 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2008
34e9ba66 2009 s->control_command = s->control_command->command_next;
5e94833f
LP		 2010 service_unwatch_control_pid(s);
2011
81a2b7ce
LP		 2012 if ((r = service_spawn(s,
2013 s->control_command,
2014 true,
2015 false,
2016 !s->permissions_start_only,
2017 !s->root_directory_start_only,
5830833f
LP		 2018 s->control_command_id == SERVICE_EXEC_START_PRE ||
2019 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2020 false,
e55224ca 2021 &s->control_pid)) < 0)
034c6ed7
LP		 2022 goto fail;
2023
2024 return;
2025
2026fail:
34e9ba66 2027 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2028
80876c20
LP		 2029 if (s->state == SERVICE_START_PRE)
2030 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2031 else if (s->state == SERVICE_STOP)
2032 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2033 else if (s->state == SERVICE_STOP_POST)
2034 service_enter_dead(s, false, true);
2035 else
2036 service_enter_stop(s, false);
5cb5a6ff
LP		 2037}
2038
34e9ba66
LP		 2039static void service_run_next_main(Service *s, bool success) {
2040 pid_t pid;
2041 int r;
2042
2043 assert(s);
2044 assert(s->control_command);
2045 assert(s->control_command->command_next);
2046
2047 if (!success)
2048 s->failure = true;
2049
2050 assert(s->control_command_id == SERVICE_EXEC_START);
2051 assert(s->type == SERVICE_ONESHOT);
2052
2053 s->control_command = s->control_command->command_next;
2054 service_unwatch_main_pid(s);
2055
2056 if ((r = service_spawn(s,
2057 s->control_command,
2058 false,
2059 true,
2060 true,
2061 true,
2062 true,
2063 s->notify_access != NOTIFY_NONE,
2064 &pid)) < 0)
2065 goto fail;
2066
2067 service_set_main_pid(s, pid);
2068
2069 return;
2070
2071fail:
2072 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2073 service_enter_stop(s, false);
2074}
2075
87f0e418
LP		 2076static int service_start(Unit *u) {
2077 Service *s = SERVICE(u);
5cb5a6ff
LP		 2078
2079 assert(s);
2080
034c6ed7
LP		 2081 /* We cannot fulfill this request right now, try again later
2082 * please! */
2083 if (s->state == SERVICE_STOP ||
2084 s->state == SERVICE_STOP_SIGTERM ||
2085 s->state == SERVICE_STOP_SIGKILL ||
2086 s->state == SERVICE_STOP_POST ||
2087 s->state == SERVICE_FINAL_SIGTERM ||
2088 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2089 return -EAGAIN;
2090
034c6ed7
LP		 2091 /* Already on it! */
2092 if (s->state == SERVICE_START_PRE ||
2093 s->state == SERVICE_START ||
2094 s->state == SERVICE_START_POST)
2095 return 0;
2096
fdf20a31 2097 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2098
1e2e8133
LP		 2099 /* Make sure we don't enter a busy loop of some kind. */
2100 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2101 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2102 return -ECANCELED;
1e2e8133
LP		 2103 }
2104
034c6ed7
LP		 2105 s->failure = false;
2106 s->main_pid_known = false;
47342320 2107 s->forbid_restart = false;
034c6ed7
LP		 2108
2109 service_enter_start_pre(s);
2110 return 0;
5cb5a6ff
LP		 2111}
2112
87f0e418
LP		 2113static int service_stop(Unit *u) {
2114 Service *s = SERVICE(u);
5cb5a6ff
LP		 2115
2116 assert(s);
2117
3f6c78dc
LP		 2118 /* This is a user request, so don't do restarts on this
2119 * shutdown. */
47342320 2120 s->forbid_restart = true;
034c6ed7 2121
e537352b
LP		 2122 /* Already on it */
2123 if (s->state == SERVICE_STOP ||
2124 s->state == SERVICE_STOP_SIGTERM ||
2125 s->state == SERVICE_STOP_SIGKILL ||
2126 s->state == SERVICE_STOP_POST ||
2127 s->state == SERVICE_FINAL_SIGTERM ||
2128 s->state == SERVICE_FINAL_SIGKILL)
2129 return 0;
2130
3f6c78dc 2131 /* Don't allow a restart */
034c6ed7
LP		 2132 if (s->state == SERVICE_AUTO_RESTART) {
2133 service_set_state(s, SERVICE_DEAD);
2134 return 0;
2135 }
2136
3f6c78dc
LP		 2137 /* If there's already something running we go directly into
2138 * kill mode. */
2139 if (s->state == SERVICE_START_PRE ||
2140 s->state == SERVICE_START ||
2141 s->state == SERVICE_START_POST ||
2142 s->state == SERVICE_RELOAD) {
2143 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2144 return 0;
2145 }
5cb5a6ff 2146
3f6c78dc
LP		 2147 assert(s->state == SERVICE_RUNNING ||
2148 s->state == SERVICE_EXITED);
3a762661 2149
034c6ed7 2150 service_enter_stop(s, true);
5cb5a6ff
LP		 2151 return 0;
2152}
2153
87f0e418
LP		 2154static int service_reload(Unit *u) {
2155 Service *s = SERVICE(u);
034c6ed7
LP		 2156
2157 assert(s);
2158
80876c20 2159 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2160
2161 service_enter_reload(s);
5cb5a6ff
LP		 2162 return 0;
2163}
2164
87f0e418
LP		 2165static bool service_can_reload(Unit *u) {
2166 Service *s = SERVICE(u);
034c6ed7
LP		 2167
2168 assert(s);
2169
2170 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2171}
2172
a16e1123
LP		 2173static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2174 Service *s = SERVICE(u);
2175
2176 assert(u);
2177 assert(f);
2178 assert(fds);
2179
2180 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2181 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2182
2183 if (s->control_pid > 0)
5925dd3c 2184 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2185
5925dd3c
LP		 2186 if (s->main_pid_known && s->main_pid > 0)
2187 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2188
2189 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2190
3a2776bc
LP		 2191 if (s->status_text)
2192 unit_serialize_item(u, f, "status-text", s->status_text);
2193
a16e1123
LP		 2194 /* There's a minor uncleanliness here: if there are multiple
2195 * commands attached here, we will start from the first one
2196 * again */
2197 if (s->control_command_id >= 0)
825636e5 2198 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2199
2200 if (s->socket_fd >= 0) {
2201 int copy;
2202
2203 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2204 return copy;
2205
2206 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2207 }
2208
ecdbca40
LP		 2209 if (s->main_exec_status.pid > 0) {
2210 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2211
2212 if (s->main_exec_status.start_timestamp.realtime > 0) {
2213 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
2214 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2215
2216 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2217 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2218 }
2219
2220 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2221 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2222 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2223 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2224 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2225
2226 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2227 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2228 }
2229 }
2230
a16e1123
LP		 2231 return 0;
2232}
2233
2234static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2235 Service *s = SERVICE(u);
a16e1123
LP		 2236
2237 assert(u);
2238 assert(key);
2239 assert(value);
2240 assert(fds);
2241
2242 if (streq(key, "state")) {
2243 ServiceState state;
2244
2245 if ((state = service_state_from_string(value)) < 0)
2246 log_debug("Failed to parse state value %s", value);
2247 else
2248 s->deserialized_state = state;
2249 } else if (streq(key, "failure")) {
2250 int b;
2251
2252 if ((b = parse_boolean(value)) < 0)
2253 log_debug("Failed to parse failure value %s", value);
2254 else
2255 s->failure = b || s->failure;
2256 } else if (streq(key, "control-pid")) {
5925dd3c 2257 pid_t pid;
a16e1123 2258
e364ad06 2259 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2260 log_debug("Failed to parse control-pid value %s", value);
2261 else
e55224ca 2262 s->control_pid = pid;
a16e1123 2263 } else if (streq(key, "main-pid")) {
5925dd3c 2264 pid_t pid;
a16e1123 2265
e364ad06 2266 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2267 log_debug("Failed to parse main-pid value %s", value);
2268 else
5925dd3c 2269 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2270 } else if (streq(key, "main-pid-known")) {
2271 int b;
2272
2273 if ((b = parse_boolean(value)) < 0)
2274 log_debug("Failed to parse main-pid-known value %s", value);
2275 else
2276 s->main_pid_known = b;
3a2776bc
LP		 2277 } else if (streq(key, "status-text")) {
2278 char *t;
2279
2280 if ((t = strdup(value))) {
2281 free(s->status_text);
2282 s->status_text = t;
2283 }
2284
a16e1123
LP		 2285 } else if (streq(key, "control-command")) {
2286 ServiceExecCommand id;
2287
2288 if ((id = service_exec_command_from_string(value)) < 0)
2289 log_debug("Failed to parse exec-command value %s", value);
2290 else {
2291 s->control_command_id = id;
2292 s->control_command = s->exec_command[id];
2293 }
2294 } else if (streq(key, "socket-fd")) {
2295 int fd;
2296
2297 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2298 log_debug("Failed to parse socket-fd value %s", value);
2299 else {
2300
2301 if (s->socket_fd >= 0)
2302 close_nointr_nofail(s->socket_fd);
2303 s->socket_fd = fdset_remove(fds, fd);
2304 }
ecdbca40
LP		 2305 } else if (streq(key, "main-exec-status-pid")) {
2306 pid_t pid;
2307
e364ad06 2308 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2309 log_debug("Failed to parse main-exec-status-pid value %s", value);
2310 else
2311 s->main_exec_status.pid = pid;
2312 } else if (streq(key, "main-exec-status-code")) {
2313 int i;
2314
e364ad06 2315 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2316 log_debug("Failed to parse main-exec-status-code value %s", value);
2317 else
2318 s->main_exec_status.code = i;
2319 } else if (streq(key, "main-exec-status-status")) {
2320 int i;
2321
e364ad06 2322 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2323 log_debug("Failed to parse main-exec-status-status value %s", value);
2324 else
2325 s->main_exec_status.status = i;
2326 } else if (streq(key, "main-exec-status-start-realtime")) {
2327 uint64_t k;
2328
e364ad06 2329 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2330 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2331 else
2332 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2333 } else if (streq(key, "main-exec-status-start-monotonic")) {
2334 uint64_t k;
2335
e364ad06 2336 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2337 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2338 else
2339 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2340 } else if (streq(key, "main-exec-status-exit-realtime")) {
2341 uint64_t k;
2342
e364ad06 2343 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2344 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2345 else
2346 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2347 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2348 uint64_t k;
2349
e364ad06 2350 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2351 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2352 else
2353 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2354 } else
2355 log_debug("Unknown serialization key '%s'", key);
2356
2357 return 0;
2358}
2359
87f0e418
LP		 2360static UnitActiveState service_active_state(Unit *u) {
2361 assert(u);
5cb5a6ff 2362
acbb0225 2363 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2364}
2365
10a94420
LP		 2366static const char *service_sub_state_to_string(Unit *u) {
2367 assert(u);
2368
2369 return service_state_to_string(SERVICE(u)->state);
2370}
2371
07459bb6 2372#ifdef HAVE_SYSV_COMPAT
701cc384
LP		 2373static bool service_check_gc(Unit *u) {
2374 Service *s = SERVICE(u);
2375
2376 assert(s);
2377
2378 return !!s->sysv_path;
2379}
07459bb6 2380#endif
701cc384
LP		 2381
2382static bool service_check_snapshot(Unit *u) {
2383 Service *s = SERVICE(u);
2384
2385 assert(s);
2386
2387 return !s->got_socket_fd;
2388}
2389
87f0e418
LP		 2390static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2391 Service *s = SERVICE(u);
034c6ed7 2392 bool success;
5cb5a6ff
LP		 2393
2394 assert(s);
034c6ed7
LP		 2395 assert(pid >= 0);
2396
f21781d5 2397 if (!s->meta.fragment_path)
d06dacd0
LP		 2398 success = is_clean_exit_lsb(code, status);
2399 else
2400 success = is_clean_exit(code, status);
034c6ed7
LP		 2401
2402 if (s->main_pid == pid) {
2403
034c6ed7 2404 s->main_pid = 0;
34e9ba66 2405 exec_status_exit(&s->main_exec_status, pid, code, status);
034c6ed7 2406
34e9ba66
LP		 2407 if (s->type != SERVICE_FORKING && s->control_command) {
2408 s->control_command->exec_status = s->main_exec_status;
b708e7ce 2409
34e9ba66 2410 if (s->control_command->ignore)
b708e7ce 2411 success = true;
034c6ed7
LP		 2412 }
2413
92abbefb
LP		 2414 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2415 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2416 s->failure = s->failure || !success;
034c6ed7 2417
34e9ba66
LP		 2418 if (s->control_command &&
2419 s->control_command->command_next &&
2420 success) {
034c6ed7 2421
34e9ba66
LP		 2422 /* There is another command to *
2423 * execute, so let's do that. */
034c6ed7 2424
34e9ba66
LP		 2425 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2426 service_run_next_main(s, success);
034c6ed7 2427
34e9ba66
LP		 2428 } else {
2429
2430 /* The service exited, so the service is officially
2431 * gone. */
2432
2433 s->control_command = NULL;
2434 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2435
2436 switch (s->state) {
2437
2438 case SERVICE_START_POST:
2439 case SERVICE_RELOAD:
2440 case SERVICE_STOP:
2441 /* Need to wait until the operation is
2442 * done */
c4653a4d 2443 break;
7d55e835 2444
34e9ba66
LP		 2445 case SERVICE_START:
2446 if (s->type == SERVICE_ONESHOT) {
2447 /* This was our main goal, so let's go on */
2448 if (success)
2449 service_enter_start_post(s);
2450 else
2451 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2452 break;
2453 } else {
2454 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2455
34e9ba66
LP		 2456 /* Fall through */
2457 }
034c6ed7 2458
34e9ba66
LP		 2459 case SERVICE_RUNNING:
2460 service_enter_running(s, success);
2461 break;
034c6ed7 2462
34e9ba66
LP		 2463 case SERVICE_STOP_SIGTERM:
2464 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2465
34e9ba66
LP		 2466 if (!control_pid_good(s))
2467 service_enter_stop_post(s, success);
5cb5a6ff 2468
34e9ba66
LP		 2469 /* If there is still a control process, wait for that first */
2470 break;
2471
2472 default:
2473 assert_not_reached("Uh, main process died at wrong time.");
2474 }
034c6ed7 2475 }
5cb5a6ff 2476
034c6ed7 2477 } else if (s->control_pid == pid) {
034c6ed7 2478
34e9ba66
LP		 2479 s->control_pid = 0;
2480
b708e7ce 2481 if (s->control_command) {
b58b4116 2482 exec_status_exit(&s->control_command->exec_status, pid, code, status);
a16e1123 2483
b708e7ce
LP		 2484 if (s->control_command->ignore)
2485 success = true;
2486 }
2487
34e9ba66 2488 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2489 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2490 s->failure = s->failure || !success;
034c6ed7 2491
34e9ba66
LP		 2492 if (s->control_command &&
2493 s->control_command->command_next &&
2494 success) {
034c6ed7
LP		 2495
2496 /* There is another command to *
2497 * execute, so let's do that. */
2498
34e9ba66
LP		 2499 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2500 service_run_next_control(s, success);
034c6ed7 2501
80876c20 2502 } else {
034c6ed7
LP		 2503 /* No further commands for this step, so let's
2504 * figure out what to do next */
2505
a16e1123
LP		 2506 s->control_command = NULL;
2507 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2508
9e2f7c11 2509 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2510
034c6ed7
LP		 2511 switch (s->state) {
2512
2513 case SERVICE_START_PRE:
2514 if (success)
2515 service_enter_start(s);
2516 else
80876c20 2517 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2518 break;
2519
2520 case SERVICE_START:
2521 assert(s->type == SERVICE_FORKING);
2522
2523 /* Let's try to load the pid
2524 * file here if we can. We
2525 * ignore the return value,
2526 * since the PID file might
2527 * actually be created by a
2528 * START_POST script */
2529
2530 if (success) {
2531 if (s->pid_file)
2532 service_load_pid_file(s);
2533
2534 service_enter_start_post(s);
2535 } else
80876c20 2536 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2537
2538 break;
2539
2540 case SERVICE_START_POST:
2541 if (success && s->pid_file && !s->main_pid_known) {
2542 int r;
2543
2544 /* Hmm, let's see if we can
2545 * load the pid now after the
2546 * start-post scripts got
2547 * executed. */
2548
2549 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2550 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2551 }
2552
2553 /* Fall through */
2554
2555 case SERVICE_RELOAD:
80876c20
LP		 2556 if (success)
2557 service_enter_running(s, true);
2558 else
034c6ed7
LP		 2559 service_enter_stop(s, false);
2560
2561 break;
2562
2563 case SERVICE_STOP:
80876c20 2564 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2565 break;
2566
2567 case SERVICE_STOP_SIGTERM:
2568 case SERVICE_STOP_SIGKILL:
2569 if (main_pid_good(s) <= 0)
2570 service_enter_stop_post(s, success);
2571
2572 /* If there is still a service
2573 * process around, wait until
2574 * that one quit, too */
2575 break;
2576
2577 case SERVICE_STOP_POST:
2578 case SERVICE_FINAL_SIGTERM:
2579 case SERVICE_FINAL_SIGKILL:
2580 service_enter_dead(s, success, true);
2581 break;
2582
2583 default:
2584 assert_not_reached("Uh, control process died at wrong time.");
2585 }
2586 }
8c47c732 2587 }
c4e2ceae
LP		 2588
2589 /* Notify clients about changed exit status */
2590 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2591}
2592
acbb0225 2593static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2594 Service *s = SERVICE(u);
034c6ed7
LP		 2595
2596 assert(s);
2597 assert(elapsed == 1);
2598
acbb0225 2599 assert(w == &s->timer_watch);
034c6ed7
LP		 2600
2601 switch (s->state) {
2602
2603 case SERVICE_START_PRE:
2604 case SERVICE_START:
9e2f7c11 2605 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2606 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2607 break;
2608
034c6ed7
LP		 2609 case SERVICE_START_POST:
2610 case SERVICE_RELOAD:
9e2f7c11 2611 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2612 service_enter_stop(s, false);
2613 break;
2614
2615 case SERVICE_STOP:
9e2f7c11 2616 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2617 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2618 break;
2619
2620 case SERVICE_STOP_SIGTERM:
9e2f7c11 2621 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2622 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2623 break;
2624
2625 case SERVICE_STOP_SIGKILL:
2626 /* Uh, wie sent a SIGKILL and it is still not gone?
2627 * Must be something we cannot kill, so let's just be
2628 * weirded out and continue */
2629
9e2f7c11 2630 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2631 service_enter_stop_post(s, false);
2632 break;
2633
2634 case SERVICE_STOP_POST:
9e2f7c11 2635 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2636 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2637 break;
2638
2639 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2640 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2641 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2642 break;
2643
2644 case SERVICE_FINAL_SIGKILL:
fdf20a31 2645 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2646 service_enter_dead(s, false, true);
2647 break;
2648
2649 case SERVICE_AUTO_RESTART:
54165a39 2650 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2651 service_enter_restart(s);
2652 break;
2653
2654 default:
2655 assert_not_reached("Timeout at wrong time.");
2656 }
5cb5a6ff
LP		 2657}
2658
8e274523
LP		 2659static void service_cgroup_notify_event(Unit *u) {
2660 Service *s = SERVICE(u);
2661
2662 assert(u);
2663
9e2f7c11 2664 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2665
2666 switch (s->state) {
2667
2668 /* Waiting for SIGCHLD is usually more interesting,
2669 * because it includes return codes/signals. Which is
2670 * why we ignore the cgroup events for most cases,
2671 * except when we don't know pid which to expect the
2672 * SIGCHLD for. */
2673
2674 case SERVICE_RUNNING:
80876c20 2675 service_enter_running(s, true);
8e274523
LP		 2676 break;
2677
28708d8a
LP		 2678 case SERVICE_STOP_SIGTERM:
2679 case SERVICE_STOP_SIGKILL:
2680 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2681 service_enter_stop_post(s, true);
2682
2683 break;
2684
7f97f0fe
LP		 2685 case SERVICE_FINAL_SIGTERM:
2686 case SERVICE_FINAL_SIGKILL:
2687 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2688 service_enter_dead(s, true, true);
2689
2690 break;
2691
8e274523
LP		 2692 default:
2693 ;
2694 }
2695}
2696
c952c6ec 2697static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2698 Service *s = SERVICE(u);
2699 const char *e;
2700
2701 assert(u);
2702
c952c6ec
LP		 2703 if (s->notify_access == NOTIFY_NONE) {
2704 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2705 u->meta.id, (unsigned long) pid);
2706 return;
2707 }
2708
2709 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2710 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2711 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2712 return;
2713 }
2714
8c47c732
LP		 2715 log_debug("%s: Got message", u->meta.id);
2716
2717 /* Interpret MAINPID= */
2718 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2719 (s->state == SERVICE_START ||
2720 s->state == SERVICE_START_POST ||
2721 s->state == SERVICE_RUNNING ||
2722 s->state == SERVICE_RELOAD)) {
8c47c732 2723
5925dd3c 2724 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2725 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2726 else {
2727 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2728 service_set_main_pid(s, pid);
8c47c732
LP		 2729 }
2730 }
2731
2732 /* Interpret READY= */
2733 if (s->type == SERVICE_NOTIFY &&
2734 s->state == SERVICE_START &&
2735 strv_find(tags, "READY=1")) {
2736 log_debug("%s: got READY=1", u->meta.id);
2737
2738 service_enter_start_post(s);
2739 }
2740
2741 /* Interpret STATUS= */
2742 if ((e = strv_find_prefix(tags, "STATUS="))) {
2743 char *t;
2744
3a2776bc
LP		 2745 if (e[7]) {
2746 if (!(t = strdup(e+7))) {
2747 log_error("Failed to allocate string.");
2748 return;
2749 }
2750
2751 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2752
3a2776bc
LP		 2753 free(s->status_text);
2754 s->status_text = t;
2755 } else {
2756 free(s->status_text);
2757 s->status_text = NULL;
2758 }
8c47c732 2759
8c47c732 2760 }
c4e2ceae
LP		 2761
2762 /* Notify clients about changed status or main pid */
2763 unit_add_to_dbus_queue(u);
8c47c732
LP		 2764}
2765
07459bb6 2766#ifdef HAVE_SYSV_COMPAT
2c4104f0 2767static int service_enumerate(Manager *m) {
2c4104f0
LP		 2768 char **p;
2769 unsigned i;
2770 DIR *d = NULL;
2771 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2772 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2773 Unit *service;
2774 Iterator j;
2c4104f0 2775 int r;
980900c1
TG		 2776#ifdef TARGET_ARCH
2777 Unit *previous = NULL;
2778 char *arch_daemons = NULL;
2779 char *arch_daemons_stripped = NULL;
2780 char **arch_daemons_split = NULL;
2781#endif
2c4104f0
LP		 2782
2783 assert(m);
2784
980900c1
TG		 2785#ifdef TARGET_ARCH
2786 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2787 "DAEMONS", &arch_daemons,
2788 NULL)) < 0) {
2789
2790 if (r != -ENOENT)
2791 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2792
2793 } else if (arch_daemons) {
2794 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2795 arch_daemons_stripped = arch_daemons;
2796 else
2797 arch_daemons_stripped++; /* strip start paren */
2798
2799 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2800
2801 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2802 r = -ENOMEM;
2803 goto finish;
2804 }
2805
2806 STRV_FOREACH(p, arch_daemons_split) {
2807
2808 free(name);
409db002 2809 name = NULL;
980900c1
TG		 2810
2811 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2812 continue;
2813
2814 if (!(name = sysv_translate_name(*p))) {
2815 r = -ENOMEM;
2816 goto finish;
2817 }
2818
2819 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2820 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2821 continue;
2822 }
2823
2824 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2825 goto finish;
2826
2827 if (previous)
2828 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2829 goto finish;
2830
2831 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2832 previous = service;
2833 }
2834 }
2835#endif
2836
c68364b7
LP		 2837 zero(runlevel_services);
2838
84e3543e 2839 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2840 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2841 struct dirent *de;
2842
2843 free(path);
2844 path = NULL;
09cd1ab1 2845 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2846 r = -ENOMEM;
2847 goto finish;
2848 }
2849
2850 if (d)
2851 closedir(d);
2852
2853 if (!(d = opendir(path))) {
2854 if (errno != ENOENT)
2855 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2856
2857 continue;
2858 }
2859
2860 while ((de = readdir(d))) {
db06e3b6 2861 int a, b;
2c4104f0
LP		 2862
2863 if (ignore_file(de->d_name))
2864 continue;
2865
2866 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2867 continue;
2868
2869 if (strlen(de->d_name) < 4)
2870 continue;
2871
db06e3b6
LP		 2872 a = undecchar(de->d_name[1]);
2873 b = undecchar(de->d_name[2]);
2874
2875 if (a < 0 || b < 0)
2876 continue;
2877
2c4104f0
LP		 2878 free(fpath);
2879 fpath = NULL;
09cd1ab1 2880 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2881 r = -ENOMEM;
2882 goto finish;
2883 }
2884
2885 if (access(fpath, X_OK) < 0) {
2886
2887 if (errno != ENOENT)
2888 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2889
2890 continue;
2891 }
2892
2893 free(name);
b7ccee3c 2894 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2895 r = -ENOMEM;
2896 goto finish;
2897 }
2898
398ef8ba 2899 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2900 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2901 continue;
2902 }
2c4104f0 2903
c68364b7
LP		 2904 if (de->d_name[0] == 'S') {
2905
f73d93a4
LP		 2906 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2907 SERVICE(service)->sysv_start_priority =
2908 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 2909
c68364b7 2910 SERVICE(service)->sysv_enabled = true;
f73d93a4 2911 }
db06e3b6 2912
c68364b7
LP		 2913 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
2914 goto finish;
2c4104f0 2915
c68364b7 2916 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 2917 goto finish;
23a177ef 2918
fc5df99e
LP		 2919 } else if (de->d_name[0] == 'K' &&
2920 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2921 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2922
c68364b7
LP		 2923 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
2924 goto finish;
2925
2926 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 2927 goto finish;
2928 }
2929 }
2930 }
2931
c68364b7
LP		 2932 /* Now we loaded all stubs and are aware of the lowest
2933 start-up priority for all services, not let's actually load
2934 the services, this will also tell us which services are
2935 actually native now */
2936 manager_dispatch_load_queue(m);
2937
2938 /* If this is a native service, rely on native ways to pull in
2939 * a service, don't pull it in via sysv rcN.d links. */
2940 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
2941 SET_FOREACH(service, runlevel_services[i], j) {
2942 service = unit_follow_merge(service);
2943
2944 if (service->meta.fragment_path)
2945 continue;
2946
2947 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2948 goto finish;
2949 }
2950
2951 /* We honour K links only for halt/reboot. For the normal
2952 * runlevels we assume the stop jobs will be implicitly added
2953 * by the core logic. Also, we don't really distuingish here
2954 * between the runlevels 0 and 6 and just add them to the
2955 * special shutdown target. On SUSE the boot.d/ runlevel is
2956 * also used for shutdown, so we add links for that too to the
2957 * shutdown target.*/
2958 SET_FOREACH(service, shutdown_services, j) {
2959 service = unit_follow_merge(service);
2960
2961 if (service->meta.fragment_path)
2962 continue;
2963
2964 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2965 goto finish;
2966 }
2967
2c4104f0
LP		 2968 r = 0;
2969
2970finish:
2971 free(path);
2972 free(fpath);
2973 free(name);
980900c1
TG		 2974#ifdef TARGET_ARCH
2975 free(arch_daemons);
2976 free(arch_daemons_split);
2977#endif
fbe9f3a9 2978
c68364b7
LP		 2979 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
2980 set_free(runlevel_services[i]);
2981 set_free(shutdown_services);
2982
fbe9f3a9
LP		 2983 if (d)
2984 closedir(d);
2c4104f0
LP		 2985
2986 return r;
2987}
07459bb6 2988#endif
2c4104f0 2989
05e343b7
LP		 2990static void service_bus_name_owner_change(
2991 Unit *u,
2992 const char *name,
2993 const char *old_owner,
2994 const char *new_owner) {
2995
2996 Service *s = SERVICE(u);
2997
2998 assert(s);
2999 assert(name);
3000
3001 assert(streq(s->bus_name, name));
3002 assert(old_owner || new_owner);
3003
3004 if (old_owner && new_owner)
3005 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3006 else if (old_owner)
3007 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3008 else
3009 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3010
3011 s->bus_name_good = !!new_owner;
3012
3013 if (s->type == SERVICE_DBUS) {
3014
3015 /* service_enter_running() will figure out what to
3016 * do */
3017 if (s->state == SERVICE_RUNNING)
3018 service_enter_running(s, true);
3019 else if (s->state == SERVICE_START && new_owner)
3020 service_enter_start_post(s);
3021
3022 } else if (new_owner &&
3023 s->main_pid <= 0 &&
3024 (s->state == SERVICE_START ||
3025 s->state == SERVICE_START_POST ||
3026 s->state == SERVICE_RUNNING ||
3027 s->state == SERVICE_RELOAD)) {
3028
3029 /* Try to acquire PID from bus service */
3030 log_debug("Trying to acquire PID from D-Bus name...");
3031
3032 bus_query_pid(u->meta.manager, name);
3033 }
3034}
3035
3036static void service_bus_query_pid_done(
3037 Unit *u,
3038 const char *name,
3039 pid_t pid) {
3040
3041 Service *s = SERVICE(u);
3042
3043 assert(s);
3044 assert(name);
3045
3046 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3047
3048 if (s->main_pid <= 0 &&
3049 (s->state == SERVICE_START ||
3050 s->state == SERVICE_START_POST ||
3051 s->state == SERVICE_RUNNING ||
3052 s->state == SERVICE_RELOAD))
5925dd3c 3053 service_set_main_pid(s, pid);
05e343b7
LP		 3054}
3055
6cf6bbc2 3056int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3057 assert(s);
3058 assert(fd >= 0);
3059
3060 /* This is called by the socket code when instantiating a new
3061 * service for a stream socket and the socket needs to be
3062 * configured. */
3063
4cd1fbcc 3064 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3065 return -EINVAL;
3066
3067 if (s->socket_fd >= 0)
3068 return -EBUSY;
3069
3070 if (s->state != SERVICE_DEAD)
3071 return -EAGAIN;
3072
3073 s->socket_fd = fd;
701cc384 3074 s->got_socket_fd = true;
f976f3f6 3075 s->accept_socket = sock;
6cf6bbc2 3076
4f2d528d
LP		 3077 return 0;
3078}
3079
fdf20a31 3080static void service_reset_failed(Unit *u) {
5632e374
LP		 3081 Service *s = SERVICE(u);
3082
3083 assert(s);
3084
fdf20a31 3085 if (s->state == SERVICE_FAILED)
5632e374
LP		 3086 service_set_state(s, SERVICE_DEAD);
3087
3088 s->failure = false;
3089}
3090
94f04347
LP		 3091static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3092 [SERVICE_DEAD] = "dead",
3093 [SERVICE_START_PRE] = "start-pre",
3094 [SERVICE_START] = "start",
3095 [SERVICE_START_POST] = "start-post",
3096 [SERVICE_RUNNING] = "running",
80876c20 3097 [SERVICE_EXITED] = "exited",
94f04347
LP		 3098 [SERVICE_RELOAD] = "reload",
3099 [SERVICE_STOP] = "stop",
3100 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3101 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3102 [SERVICE_STOP_POST] = "stop-post",
3103 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3104 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3105 [SERVICE_FAILED] = "failed",
94f04347
LP		 3106 [SERVICE_AUTO_RESTART] = "auto-restart",
3107};
3108
3109DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3110
3111static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3112 [SERVICE_ONCE] = "once",
3113 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 3114 [SERVICE_RESTART_ALWAYS] = "restart-always",
94f04347
LP		 3115};
3116
3117DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3118
3119static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3120 [SERVICE_SIMPLE] = "simple",
0d624a78 3121 [SERVICE_FORKING] = "forking",
34e9ba66 3122 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3123 [SERVICE_DBUS] = "dbus",
3124 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3125};
3126
3127DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3128
e537352b 3129static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3130 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3131 [SERVICE_EXEC_START] = "ExecStart",
3132 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3133 [SERVICE_EXEC_RELOAD] = "ExecReload",
3134 [SERVICE_EXEC_STOP] = "ExecStop",
3135 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3136};
3137
3138DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3139
c952c6ec
LP		 3140static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3141 [NOTIFY_NONE] = "none",
3142 [NOTIFY_MAIN] = "main",
3143 [NOTIFY_ALL] = "all"
3144};
3145
3146DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3147
87f0e418 3148const UnitVTable service_vtable = {
5cb5a6ff 3149 .suffix = ".service",
9e58ff9c 3150 .show_status = true,
5cb5a6ff 3151
034c6ed7
LP		 3152 .init = service_init,
3153 .done = service_done,
a16e1123
LP		 3154 .load = service_load,
3155
3156 .coldplug = service_coldplug,
034c6ed7 3157
5cb5a6ff
LP		 3158 .dump = service_dump,
3159
3160 .start = service_start,
3161 .stop = service_stop,
3162 .reload = service_reload,
3163
034c6ed7
LP		 3164 .can_reload = service_can_reload,
3165
a16e1123
LP		 3166 .serialize = service_serialize,
3167 .deserialize_item = service_deserialize_item,
3168
5cb5a6ff 3169 .active_state = service_active_state,
10a94420 3170 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3171
07459bb6 3172#ifdef HAVE_SYSV_COMPAT
701cc384 3173 .check_gc = service_check_gc,
07459bb6 3174#endif
701cc384
LP		 3175 .check_snapshot = service_check_snapshot,
3176
034c6ed7
LP		 3177 .sigchld_event = service_sigchld_event,
3178 .timer_event = service_timer_event,
2c4104f0 3179
fdf20a31 3180 .reset_failed = service_reset_failed,
5632e374 3181
8e274523 3182 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3183 .notify_message = service_notify_message,
8e274523 3184
05e343b7
LP		 3185 .bus_name_owner_change = service_bus_name_owner_change,
3186 .bus_query_pid_done = service_bus_query_pid_done,
3187
c4e2ceae 3188 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3189 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3190 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3191
07459bb6 3192#ifdef HAVE_SYSV_COMPAT
2c4104f0 3193 .enumerate = service_enumerate
07459bb6 3194#endif
5cb5a6ff 3195};
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