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socket: make service to start on incoming traffic configurable
[thirdparty/systemd.git] / src / service.c
CommitLineData
d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
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
181 if (!s->socket)
182 return;
183
184 socket_connection_unref(s->socket);
185 s->socket = NULL;
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
acbb0225 225 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 226}
227
07459bb6 228#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 229static char *sysv_translate_name(const char *name) {
230 char *r;
231
232 if (!(r = new(char, strlen(name) + sizeof(".service"))))
233 return NULL;
234
235 if (startswith(name, "boot."))
236 /* Drop SuSE-style boot. prefix */
237 strcpy(stpcpy(r, name + 5), ".service");
238 else if (endswith(name, ".sh"))
239 /* Drop Debian-style .sh suffix */
240 strcpy(stpcpy(r, name) - 3, ".service");
980900c1 241#ifdef TARGET_ARCH
9f151f29
LP		 242 else if (startswith(name, "@"))
243 /* Drop Arch-style background prefix */
244 strcpy(stpcpy(r, name + 1), ".service");
980900c1 245#endif
b7ccee3c
LP		 246 else
247 /* Normal init scripts */
248 strcpy(stpcpy(r, name), ".service");
249
250 return r;
251}
252
ee95669f 253static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 254
a7d3cc26
LP		 255 /* We silently ignore the $ prefix here. According to the LSB
256 * spec it simply indicates whether something is a
257 * standardized name or a distribution-specific one. Since we
258 * just follow what already exists and do not introduce new
259 * uses or names we don't care who introduced a new name. */
260
2c4104f0 261 static const char * const table[] = {
6464aa08 262 /* LSB defined facilities */
a7d3cc26
LP		 263 "local_fs", SPECIAL_LOCAL_FS_TARGET,
264 "network", SPECIAL_NETWORK_TARGET,
265 "named", SPECIAL_NSS_LOOKUP_TARGET,
266 "portmap", SPECIAL_RPCBIND_TARGET,
267 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
268 "syslog", SPECIAL_SYSLOG_TARGET,
269 "time", SPECIAL_RTC_SET_TARGET,
6464aa08
LP		 270
271 /* Debian extensions */
3177a49c 272#ifdef TARGET_DEBIAN
a7d3cc26 273 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 274#endif
a7d3cc26
LP		 275 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
276 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
3177a49c
LP		 277
278#ifdef TARGET_FEDORA
a7d3cc26
LP		 279 /* Fedora extensions */
280 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
281 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
282 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 283#endif
a7d3cc26
LP		 284
285 /* SuSE extensions */
286 "null", NULL
287
2c4104f0
LP		 288 };
289
290 unsigned i;
291 char *r;
ee95669f 292 const char *n;
2c4104f0 293
ee95669f
LP		 294 assert(name);
295 assert(_r);
a7d3cc26 296
ee95669f 297 n = *name == '$' ? name + 1 : name;
a7d3cc26 298
ee95669f 299 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 300
ee95669f
LP		 301 if (!streq(table[i], n))
302 continue;
2c4104f0 303
ee95669f
LP		 304 if (!table[i+1])
305 return 0;
306
307 if (!(r = strdup(table[i+1])))
308 return -ENOMEM;
309
310 goto finish;
311 }
2c4104f0 312
a7d3cc26
LP		 313 /* If we don't know this name, fallback heuristics to figure
314 * out whether something is a target or an service alias. */
315
2c4104f0 316 if (*name == '$')
ee95669f
LP		 317 /* Facilities starting with $ are most likely targets */
318 r = unit_name_build(n, NULL, ".target");
319 else if (filename && streq(name, filename))
320 /* Names equalling the file name of the services are redundant */
321 return 0;
32159d3a 322 else
ee95669f
LP		 323 /* Everything else we assume to be normal service names */
324 r = sysv_translate_name(n);
2c4104f0 325
32159d3a 326 if (!r)
2c4104f0
LP		 327 return -ENOMEM;
328
329finish:
330
331 if (_r)
332 *_r = r;
333
334 return 1;
335}
336
56d748b4 337static int sysv_fix_order(Service *s) {
2c4104f0
LP		 338 Meta *other;
339 int r;
340
341 assert(s);
342
343 if (s->sysv_start_priority < 0)
344 return 0;
345
23a177ef
LP		 346 /* For each pair of services where at least one lacks a LSB
347 * header, we use the start priority value to order things. */
2c4104f0 348
4cd1fbcc 349 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 350 Service *t;
351 UnitDependency d;
eeaafddc 352 bool special_s, special_t;
2c4104f0
LP		 353
354 t = (Service*) other;
355
356 if (s == t)
357 continue;
9f151f29
LP		 358
359 if (t->meta.load_state != UNIT_LOADED)
360 continue;
2c4104f0
LP		 361
362 if (t->sysv_start_priority < 0)
363 continue;
364
51a1a79d
LP		 365 /* If both units have modern headers we don't care
366 * about the priorities */
f21781d5
LP		 367 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
368 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 369 continue;
370
eeaafddc
LP		 371 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
372 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
373
374 if (special_t && !special_s)
375 d = UNIT_AFTER;
376 else if (special_s && !special_t)
377 d = UNIT_BEFORE;
378 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 379 d = UNIT_AFTER;
380 else if (t->sysv_start_priority > s->sysv_start_priority)
381 d = UNIT_BEFORE;
382 else
383 continue;
384
385 /* FIXME: Maybe we should compare the name here lexicographically? */
386
701cc384 387 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 388 return r;
389 }
390
391 return 0;
392}
393
394static ExecCommand *exec_command_new(const char *path, const char *arg1) {
395 ExecCommand *c;
396
397 if (!(c = new0(ExecCommand, 1)))
398 return NULL;
399
400 if (!(c->path = strdup(path))) {
401 free(c);
402 return NULL;
403 }
404
405 if (!(c->argv = strv_new(path, arg1, NULL))) {
406 free(c->path);
407 free(c);
408 return NULL;
409 }
410
411 return c;
412}
413
414static int sysv_exec_commands(Service *s) {
415 ExecCommand *c;
416
417 assert(s);
418 assert(s->sysv_path);
419
420 if (!(c = exec_command_new(s->sysv_path, "start")))
421 return -ENOMEM;
422 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
423
424 if (!(c = exec_command_new(s->sysv_path, "stop")))
425 return -ENOMEM;
426 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
427
428 if (!(c = exec_command_new(s->sysv_path, "reload")))
429 return -ENOMEM;
430 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
431
432 return 0;
433}
434
e537352b 435static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 436 FILE *f;
437 Unit *u;
438 unsigned line = 0;
439 int r;
440 enum {
441 NORMAL,
442 DESCRIPTION,
443 LSB,
444 LSB_DESCRIPTION
445 } state = NORMAL;
0b5d26f9 446 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 447
448 assert(s);
449 assert(path);
2c4104f0
LP		 450
451 u = UNIT(s);
452
453 if (!(f = fopen(path, "re"))) {
454 r = errno == ENOENT ? 0 : -errno;
455 goto finish;
456 }
457
2c4104f0
LP		 458 free(s->sysv_path);
459 if (!(s->sysv_path = strdup(path))) {
460 r = -ENOMEM;
461 goto finish;
462 }
463
464 while (!feof(f)) {
465 char l[LINE_MAX], *t;
466
467 if (!fgets(l, sizeof(l), f)) {
468 if (feof(f))
469 break;
470
471 r = -errno;
472 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
473 goto finish;
474 }
475
476 line++;
477
478 t = strstrip(l);
479 if (*t != '#')
480 continue;
481
482 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
483 state = LSB;
23a177ef 484 s->sysv_has_lsb = true;
2c4104f0
LP		 485 continue;
486 }
487
488 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
489 state = NORMAL;
490 continue;
491 }
492
493 t++;
494 t += strspn(t, WHITESPACE);
495
496 if (state == NORMAL) {
497
498 /* Try to parse Red Hat style chkconfig headers */
499
c2b35af6 500 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 501 int start_priority;
8309400a 502 char runlevels[16], *k;
2c4104f0
LP		 503
504 state = NORMAL;
505
8309400a
LP		 506 if (sscanf(t+10, "%15s %i %*i",
507 runlevels,
508 &start_priority) != 2) {
2c4104f0
LP		 509
510 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
511 continue;
512 }
513
fbe9f3a9
LP		 514 /* A start priority gathered from the
515 * symlink farms is preferred over the
516 * data from the LSB header. */
8309400a 517 if (start_priority < 0 || start_priority > 99)
2c4104f0 518 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 519 else if (s->sysv_start_priority < 0)
8309400a
LP		 520 s->sysv_start_priority = start_priority;
521
522 char_array_0(runlevels);
523 k = delete_chars(runlevels, WHITESPACE "-");
524
525 if (k[0]) {
526 char *d;
527
528 if (!(d = strdup(k))) {
529 r = -ENOMEM;
530 goto finish;
531 }
532
533 free(s->sysv_runlevels);
534 s->sysv_runlevels = d;
2c4104f0
LP		 535 }
536
0b5d26f9 537 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 538
539 size_t k = strlen(t);
540 char *d;
0b5d26f9 541 const char *j;
2c4104f0
LP		 542
543 if (t[k-1] == '\\') {
544 state = DESCRIPTION;
545 t[k-1] = 0;
546 }
547
0b5d26f9
LP		 548 if ((j = strstrip(t+12)) && *j) {
549 if (!(d = strdup(j))) {
550 r = -ENOMEM;
551 goto finish;
552 }
553 } else
554 d = NULL;
2c4104f0 555
0b5d26f9
LP		 556 free(chkconfig_description);
557 chkconfig_description = d;
2c4104f0 558
c2b35af6 559 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 560
561 char *fn;
562
563 state = NORMAL;
564
565 fn = strstrip(t+8);
566 if (!path_is_absolute(fn)) {
567 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
568 continue;
569 }
570
571 if (!(fn = strdup(fn))) {
572 r = -ENOMEM;
573 goto finish;
574 }
575
576 free(s->pid_file);
577 s->pid_file = fn;
578 }
579
580 } else if (state == DESCRIPTION) {
581
582 /* Try to parse Red Hat style description
583 * continuation */
584
585 size_t k = strlen(t);
0b5d26f9 586 char *j;
2c4104f0
LP		 587
588 if (t[k-1] == '\\')
589 t[k-1] = 0;
590 else
591 state = NORMAL;
592
0b5d26f9
LP		 593 if ((j = strstrip(t)) && *j) {
594 char *d = NULL;
595
596 if (chkconfig_description)
597 asprintf(&d, "%s %s", chkconfig_description, j);
598 else
599 d = strdup(j);
2c4104f0 600
0b5d26f9
LP		 601 if (!d) {
602 r = -ENOMEM;
603 goto finish;
604 }
605
606 free(chkconfig_description);
607 chkconfig_description = d;
608 }
2c4104f0
LP		 609
610 } else if (state == LSB || state == LSB_DESCRIPTION) {
611
c2b35af6 612 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 613 char *i, *w;
614 size_t z;
615
616 state = LSB;
617
f60f22df 618 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 619 char *n, *m;
620
621 if (!(n = strndup(w, z))) {
622 r = -ENOMEM;
623 goto finish;
624 }
625
ee95669f 626 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 627 free(n);
628
629 if (r < 0)
630 goto finish;
631
632 if (r == 0)
633 continue;
634
bd77d0fc
LP		 635 if (unit_name_to_type(m) == UNIT_SERVICE)
636 r = unit_add_name(u, m);
c68364b7
LP		 637 else {
638 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
639
640 if (s->sysv_enabled) {
641 int k;
642
643 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
644 r = k;
645 }
646 }
bd77d0fc 647
2c4104f0 648 if (r < 0)
43a37549 649 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 650
651 free(m);
2c4104f0
LP		 652 }
653
c2b35af6
LP		 654 } else if (startswith_no_case(t, "Required-Start:") ||
655 startswith_no_case(t, "Should-Start:") ||
656 startswith_no_case(t, "X-Start-Before:") ||
657 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 658 char *i, *w;
659 size_t z;
660
661 state = LSB;
662
f60f22df 663 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 664 char *n, *m;
665
666 if (!(n = strndup(w, z))) {
667 r = -ENOMEM;
668 goto finish;
669 }
670
ee95669f 671 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 672 free(n);
673
674 if (r < 0)
675 goto finish;
676
677 if (r == 0)
678 continue;
679
c2b35af6 680 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 681
682 if (r < 0)
43a37549 683 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 684
685 free(m);
2c4104f0 686 }
c2b35af6 687 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 688 char *k, *d;
689
690 state = LSB;
691
692 k = delete_chars(t+14, WHITESPACE "-");
693
694 if (k[0] != 0) {
695 if (!(d = strdup(k))) {
696 r = -ENOMEM;
697 goto finish;
698 }
699
700 free(s->sysv_runlevels);
701 s->sysv_runlevels = d;
702 }
2c4104f0 703
0b5d26f9
LP		 704 } else if (startswith_no_case(t, "Description:")) {
705 char *d, *j;
ed4c1cc6 706
2c4104f0
LP		 707 state = LSB_DESCRIPTION;
708
0b5d26f9
LP		 709 if ((j = strstrip(t+12)) && *j) {
710 if (!(d = strdup(j))) {
711 r = -ENOMEM;
712 goto finish;
713 }
714 } else
715 d = NULL;
2c4104f0 716
0b5d26f9
LP		 717 free(long_description);
718 long_description = d;
2c4104f0 719
ed4c1cc6 720 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 721 char *d, *j;
2c4104f0 722
2c4104f0
LP		 723 state = LSB;
724
0b5d26f9
LP		 725 if ((j = strstrip(t+18)) && *j) {
726 if (!(d = strdup(j))) {
727 r = -ENOMEM;
728 goto finish;
729 }
730 } else
731 d = NULL;
2c4104f0 732
0b5d26f9
LP		 733 free(short_description);
734 short_description = d;
2c4104f0 735
723c83fd
LP		 736 } else if (startswith_no_case(t, "X-Interactive:")) {
737 int b;
738
739 if ((b = parse_boolean(strstrip(t+14))) < 0) {
740 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
741 continue;
742 }
743
744 if (b)
745 s->exec_context.std_input = EXEC_INPUT_TTY;
746 else
747 s->exec_context.std_input = EXEC_INPUT_NULL;
748
2c4104f0
LP		 749 } else if (state == LSB_DESCRIPTION) {
750
751 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 752 char *j;
2c4104f0 753
0b5d26f9
LP		 754 if ((j = strstrip(t)) && *j) {
755 char *d = NULL;
756
757 if (long_description)
758 asprintf(&d, "%s %s", long_description, t);
759 else
760 d = strdup(j);
761
762 if (!d) {
763 r = -ENOMEM;
764 goto finish;
765 }
766
767 free(long_description);
768 long_description = d;
2c4104f0
LP		 769 }
770
2c4104f0
LP		 771 } else
772 state = LSB;
773 }
774 }
775 }
776
2c4104f0
LP		 777 if ((r = sysv_exec_commands(s)) < 0)
778 goto finish;
779
a40eb732 780 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 781 /* If there a runlevels configured for this service
782 * but none of the standard ones, then we assume this
783 * is some special kind of service (which might be
784 * needed for early boot) and don't create any links
785 * to it. */
786
a40eb732 787 s->meta.default_dependencies = false;
09cd1ab1 788
09cd1ab1
LP		 789 /* Don't timeout special services during boot (like fsck) */
790 s->timeout_usec = 0;
a40eb732 791 }
0fd030be 792
80876c20 793 /* Special setting for all SysV services */
1f48cf56 794 s->type = SERVICE_FORKING;
02ee865a 795 s->remain_after_exit = true;
1f48cf56 796 s->restart = SERVICE_ONCE;
8a2b3c09
LP		 797 s->exec_context.std_output =
798 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
799 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
2e22afe9 800 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 801
0b5d26f9
LP		 802 /* We use the long description only if
803 * no short description is set. */
804
805 if (short_description)
806 description = short_description;
807 else if (chkconfig_description)
808 description = chkconfig_description;
809 else if (long_description)
810 description = long_description;
811 else
812 description = NULL;
813
814 if (description) {
815 char *d;
816
817 if (!(d = strappend("LSB: ", description))) {
818 r = -ENOMEM;
819 goto finish;
820 }
821
822 u->meta.description = d;
823 }
824
e537352b 825 u->meta.load_state = UNIT_LOADED;
23a177ef 826 r = 0;
2c4104f0
LP		 827
828finish:
829
830 if (f)
831 fclose(f);
832
0b5d26f9
LP		 833 free(short_description);
834 free(long_description);
835 free(chkconfig_description);
836
2c4104f0
LP		 837 return r;
838}
839
e537352b 840static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 841 char **p;
842
843 assert(s);
844 assert(name);
845
d017c6ca
LP		 846 /* For SysV services we strip the boot. or .sh
847 * prefixes/suffixes. */
848 if (startswith(name, "boot.") ||
849 endswith(name, ".sh.service"))
850 return -ENOENT;
851
4cd1fbcc 852 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 853 char *path;
854 int r;
855
856 if (asprintf(&path, "%s/%s", *p, name) < 0)
857 return -ENOMEM;
858
859 assert(endswith(path, ".service"));
860 path[strlen(path)-8] = 0;
861
e537352b 862 r = service_load_sysv_path(s, path);
fbe9f3a9 863
4cd1fbcc 864 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 865 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 866 strcat(path, ".sh");
867 r = service_load_sysv_path(s, path);
868 }
869
2c4104f0
LP		 870 free(path);
871
4cd1fbcc 872 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 873 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 874
875 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
876 return -ENOMEM;
877
878 path[strlen(path)-8] = 0;
879 r = service_load_sysv_path(s, path);
880 free(path);
881 }
882
23a177ef 883 if (r < 0)
2c4104f0 884 return r;
23a177ef 885
4cd1fbcc 886 if ((s->meta.load_state != UNIT_STUB))
23a177ef 887 break;
2c4104f0
LP		 888 }
889
890 return 0;
891}
892
e537352b 893static int service_load_sysv(Service *s) {
2c4104f0
LP		 894 const char *t;
895 Iterator i;
896 int r;
897
5cb5a6ff
LP		 898 assert(s);
899
900 /* Load service data from SysV init scripts, preferably with
901 * LSB headers ... */
902
4cd1fbcc 903 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 904 return 0;
905
4cd1fbcc 906 if ((t = s->meta.id))
e537352b 907 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 908 return r;
909
4cd1fbcc
LP		 910 if (s->meta.load_state == UNIT_STUB)
911 SET_FOREACH(t, s->meta.names, i) {
912 if (t == s->meta.id)
e537352b
LP		 913 continue;
914
e364ad06 915 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 916 return r;
917
4cd1fbcc 918 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 919 break;
920 }
2c4104f0
LP		 921
922 return 0;
5cb5a6ff 923}
07459bb6 924#endif
5cb5a6ff 925
243b1432
LP		 926static int service_verify(Service *s) {
927 assert(s);
928
4cd1fbcc 929 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 930 return 0;
931
932 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 933 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 934 return -EINVAL;
935 }
936
34e9ba66
LP		 937 if (s->type != SERVICE_ONESHOT &&
938 s->exec_command[SERVICE_EXEC_START]->command_next) {
939 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 940 return -EINVAL;
941 }
942
05e343b7 943 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 944 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
945 return -EINVAL;
946 }
947
2e22afe9 948 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 949 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 950 return -EINVAL;
951 }
952
243b1432
LP		 953 return 0;
954}
955
a40eb732
LP		 956static int service_add_default_dependencies(Service *s) {
957 int r;
958
959 assert(s);
960
961 /* Add a number of automatic dependencies useful for the
962 * majority of services. */
963
964 /* First, pull in base system */
965 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
966
967 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
968 return r;
969
970 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
971
972 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
973 return r;
974 }
975
976 /* Second, activate normal shutdown */
69dd2852 977 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 978}
979
e537352b
LP		 980static int service_load(Unit *u) {
981 int r;
982 Service *s = SERVICE(u);
983
984 assert(s);
1e2e8133 985
5cb5a6ff 986 /* Load a .service file */
e537352b 987 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 988 return r;
989
07459bb6 990#ifdef HAVE_SYSV_COMPAT
bd77d0fc 991 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 992 if (u->meta.load_state == UNIT_STUB)
993 if ((r = service_load_sysv(s)) < 0)
23a177ef 994 return r;
07459bb6 995#endif
d46de8a1 996
23a177ef 997 /* Still nothing found? Then let's give up */
e537352b 998 if (u->meta.load_state == UNIT_STUB)
23a177ef 999 return -ENOENT;
034c6ed7 1000
23a177ef
LP		 1001 /* We were able to load something, then let's add in the
1002 * dropin directories. */
1003 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1004 return r;
23a177ef
LP		 1005
1006 /* This is a new unit? Then let's add in some extras */
e537352b 1007 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1008 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1009 return r;
1010
1011 if ((r = unit_add_default_cgroup(u)) < 0)
1012 return r;
1013
07459bb6 1014#ifdef HAVE_SYSV_COMPAT
56d748b4 1015 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1016 return r;
07459bb6 1017#endif
05e343b7 1018
ee0dd802 1019 if (s->bus_name)
05e343b7 1020 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1021 return r;
c952c6ec
LP		 1022
1023 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1024 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1025
1026 if (s->type == SERVICE_DBUS || s->bus_name)
1027 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1028 return r;
1029
1030 if (s->meta.default_dependencies)
1031 if ((r = service_add_default_dependencies(s)) < 0)
1032 return r;
8e274523
LP		 1033 }
1034
243b1432 1035 return service_verify(s);
034c6ed7
LP		 1036}
1037
87f0e418 1038static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1039
5cb5a6ff 1040 ServiceExecCommand c;
87f0e418 1041 Service *s = SERVICE(u);
47be870b
LP		 1042 const char *prefix2;
1043 char *p2;
5cb5a6ff
LP		 1044
1045 assert(s);
1046
47be870b
LP		 1047 p2 = strappend(prefix, "\t");
1048 prefix2 = p2 ? p2 : prefix;
44d8db9e 1049
5cb5a6ff 1050 fprintf(f,
81a2b7ce
LP		 1051 "%sService State: %s\n"
1052 "%sPermissionsStartOnly: %s\n"
8e274523 1053 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1054 "%sRemainAfterExit: %s\n"
c952c6ec 1055 "%sType: %s\n"
2cf3143a 1056 "%sRestart: %s\n"
c952c6ec 1057 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1058 prefix, service_state_to_string(s->state),
1059 prefix, yes_no(s->permissions_start_only),
8e274523 1060 prefix, yes_no(s->root_directory_start_only),
02ee865a 1061 prefix, yes_no(s->remain_after_exit),
c952c6ec 1062 prefix, service_type_to_string(s->type),
2cf3143a 1063 prefix, service_restart_to_string(s->restart),
c952c6ec 1064 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1065
70123e68
LP		 1066 if (s->control_pid > 0)
1067 fprintf(f,
bb00e604
LP		 1068 "%sControl PID: %lu\n",
1069 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1070
1071 if (s->main_pid > 0)
1072 fprintf(f,
bb00e604
LP		 1073 "%sMain PID: %lu\n",
1074 prefix, (unsigned long) s->main_pid);
70123e68 1075
034c6ed7
LP		 1076 if (s->pid_file)
1077 fprintf(f,
1078 "%sPIDFile: %s\n",
1079 prefix, s->pid_file);
1080
05e343b7
LP		 1081 if (s->bus_name)
1082 fprintf(f,
1083 "%sBusName: %s\n"
1084 "%sBus Name Good: %s\n",
1085 prefix, s->bus_name,
1086 prefix, yes_no(s->bus_name_good));
1087
5cb5a6ff
LP		 1088 exec_context_dump(&s->exec_context, f, prefix);
1089
e537352b 1090 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1091
44d8db9e
LP		 1092 if (!s->exec_command[c])
1093 continue;
1094
40d50879 1095 fprintf(f, "%s-> %s:\n",
94f04347 1096 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1097
1098 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1099 }
44d8db9e 1100
07459bb6 1101#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1102 if (s->sysv_path)
1103 fprintf(f,
23a177ef
LP		 1104 "%sSysV Init Script Path: %s\n"
1105 "%sSysV Init Script has LSB Header: %s\n",
1106 prefix, s->sysv_path,
1107 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 1108
1109 if (s->sysv_start_priority >= 0)
1110 fprintf(f,
5de6b302
LP		 1111 "%sSysVStartPriority: %i\n"
1112 "%sSysVEnabled: %s\n",
1113 prefix, s->sysv_start_priority,
1114 prefix, yes_no(s->sysv_enabled));
2c4104f0 1115
8309400a
LP		 1116 if (s->sysv_runlevels)
1117 fprintf(f, "%sSysVRunLevels: %s\n",
1118 prefix, s->sysv_runlevels);
07459bb6 1119#endif
23a177ef 1120
8c47c732
LP		 1121 if (s->status_text)
1122 fprintf(f, "%sStatus Text: %s\n",
1123 prefix, s->status_text);
1124
47be870b 1125 free(p2);
5cb5a6ff
LP		 1126}
1127
034c6ed7
LP		 1128static int service_load_pid_file(Service *s) {
1129 char *k;
034c6ed7 1130 int r;
5925dd3c 1131 pid_t pid;
034c6ed7
LP		 1132
1133 assert(s);
1134
1135 if (s->main_pid_known)
1136 return 0;
1137
5e94833f
LP		 1138 assert(s->main_pid <= 0);
1139
034c6ed7
LP		 1140 if (!s->pid_file)
1141 return -ENOENT;
1142
1143 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1144 return r;
1145
5925dd3c
LP		 1146 r = parse_pid(k, &pid);
1147 free(k);
034c6ed7 1148
5925dd3c
LP		 1149 if (r < 0)
1150 return r;
406eaf93 1151
5925dd3c
LP		 1152 if (kill(pid, 0) < 0 && errno != EPERM) {
1153 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1154 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1155 return -ESRCH;
1156 }
1157
5925dd3c 1158 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1159 return r;
1160
5925dd3c
LP		 1161 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1162 /* FIXME: we need to do something here */
1163 return r;
034c6ed7
LP		 1164
1165 return 0;
1166}
1167
3e33402a
LP		 1168static int service_get_sockets(Service *s, Set **_set) {
1169 Set *set;
ceee3d82
LP		 1170 Iterator i;
1171 char *t;
3e33402a 1172 int r;
ceee3d82
LP		 1173
1174 assert(s);
3e33402a
LP		 1175 assert(_set);
1176
6cf6bbc2
LP		 1177 if (s->socket_fd >= 0)
1178 return 0;
1179
3e33402a
LP		 1180 /* Collects all Socket objects that belong to this
1181 * service. Note that a service might have multiple sockets
1182 * via multiple names. */
1183
1184 if (!(set = set_new(NULL, NULL)))
1185 return -ENOMEM;
ceee3d82 1186
4cd1fbcc 1187 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1188 char *k;
1189 Unit *p;
1190
1191 /* Look for all socket objects that go by any of our
1192 * units and collect their fds */
1193
3e33402a
LP		 1194 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1195 r = -ENOMEM;
1196 goto fail;
1197 }
ceee3d82 1198
4cd1fbcc 1199 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1200 free(k);
1201
8d567588
LP		 1202 if (!p)
1203 continue;
ceee3d82 1204
3e33402a
LP		 1205 if ((r = set_put(set, p)) < 0)
1206 goto fail;
ceee3d82
LP		 1207 }
1208
3e33402a
LP		 1209 *_set = set;
1210 return 0;
1211
1212fail:
1213 set_free(set);
1214 return r;
1215}
1216
e537352b 1217static int service_notify_sockets_dead(Service *s) {
3e33402a
LP		 1218 Iterator i;
1219 Set *set;
47be870b 1220 Socket *sock;
3e33402a
LP		 1221 int r;
1222
1223 assert(s);
1224
6cf6bbc2
LP		 1225 if (s->socket_fd >= 0)
1226 return 0;
1227
3e33402a 1228 /* Notifies all our sockets when we die */
3e33402a
LP		 1229 if ((r = service_get_sockets(s, &set)) < 0)
1230 return r;
1231
47be870b
LP		 1232 SET_FOREACH(sock, set, i)
1233 socket_notify_service_dead(sock);
3e33402a
LP		 1234
1235 set_free(set);
1236
ceee3d82
LP		 1237 return 0;
1238}
1239
034c6ed7
LP		 1240static void service_set_state(Service *s, ServiceState state) {
1241 ServiceState old_state;
5cb5a6ff
LP		 1242 assert(s);
1243
034c6ed7 1244 old_state = s->state;
5cb5a6ff 1245 s->state = state;
034c6ed7
LP		 1246
1247 if (state != SERVICE_START_PRE &&
1248 state != SERVICE_START &&
1249 state != SERVICE_START_POST &&
1250 state != SERVICE_RELOAD &&
1251 state != SERVICE_STOP &&
1252 state != SERVICE_STOP_SIGTERM &&
1253 state != SERVICE_STOP_SIGKILL &&
1254 state != SERVICE_STOP_POST &&
1255 state != SERVICE_FINAL_SIGTERM &&
1256 state != SERVICE_FINAL_SIGKILL &&
1257 state != SERVICE_AUTO_RESTART)
acbb0225 1258 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1259
7d55e835
LP		 1260 if (state != SERVICE_START &&
1261 state != SERVICE_START_POST &&
034c6ed7
LP		 1262 state != SERVICE_RUNNING &&
1263 state != SERVICE_RELOAD &&
1264 state != SERVICE_STOP &&
1265 state != SERVICE_STOP_SIGTERM &&
1266 state != SERVICE_STOP_SIGKILL)
5e94833f 1267 service_unwatch_main_pid(s);
034c6ed7
LP		 1268
1269 if (state != SERVICE_START_PRE &&
1270 state != SERVICE_START &&
1271 state != SERVICE_START_POST &&
1272 state != SERVICE_RELOAD &&
1273 state != SERVICE_STOP &&
1274 state != SERVICE_STOP_SIGTERM &&
1275 state != SERVICE_STOP_SIGKILL &&
1276 state != SERVICE_STOP_POST &&
1277 state != SERVICE_FINAL_SIGTERM &&
e537352b 1278 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1279 service_unwatch_control_pid(s);
034c6ed7 1280 s->control_command = NULL;
a16e1123 1281 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1282 }
034c6ed7 1283
ceee3d82
LP		 1284 if (state == SERVICE_DEAD ||
1285 state == SERVICE_STOP ||
1286 state == SERVICE_STOP_SIGTERM ||
1287 state == SERVICE_STOP_SIGKILL ||
1288 state == SERVICE_STOP_POST ||
1289 state == SERVICE_FINAL_SIGTERM ||
1290 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1291 state == SERVICE_FAILED ||
ceee3d82 1292 state == SERVICE_AUTO_RESTART)
e537352b 1293 service_notify_sockets_dead(s);
ceee3d82 1294
4f2d528d
LP		 1295 if (state != SERVICE_START_PRE &&
1296 state != SERVICE_START &&
6cf6bbc2
LP		 1297 state != SERVICE_START_POST &&
1298 state != SERVICE_RUNNING &&
1299 state != SERVICE_RELOAD &&
1300 state != SERVICE_STOP &&
1301 state != SERVICE_STOP_SIGTERM &&
1302 state != SERVICE_STOP_SIGKILL &&
1303 state != SERVICE_STOP_POST &&
1304 state != SERVICE_FINAL_SIGTERM &&
1305 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1306 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1307 service_close_socket_fd(s);
6cf6bbc2
LP		 1308 service_connection_unref(s);
1309 }
4f2d528d 1310
f6023656
LP		 1311 /* For the inactive states unit_notify() will trim the cgroup,
1312 * but for exit we have to do that ourselves... */
1313 if (state == SERVICE_EXITED)
1314 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1315
e537352b 1316 if (old_state != state)
4cd1fbcc 1317 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1318
1319 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1320}
1321
a16e1123
LP		 1322static int service_coldplug(Unit *u) {
1323 Service *s = SERVICE(u);
1324 int r;
1325
1326 assert(s);
1327 assert(s->state == SERVICE_DEAD);
1328
1329 if (s->deserialized_state != s->state) {
1330
1331 if (s->deserialized_state == SERVICE_START_PRE ||
1332 s->deserialized_state == SERVICE_START ||
1333 s->deserialized_state == SERVICE_START_POST ||
1334 s->deserialized_state == SERVICE_RELOAD ||
1335 s->deserialized_state == SERVICE_STOP ||
1336 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1337 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1338 s->deserialized_state == SERVICE_STOP_POST ||
1339 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1340 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1341 s->deserialized_state == SERVICE_AUTO_RESTART) {
1342
1343 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1344 usec_t k;
1345
1346 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1347
1348 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1349 return r;
1350 }
1351 }
a16e1123
LP		 1352
1353 if ((s->deserialized_state == SERVICE_START &&
1354 (s->type == SERVICE_FORKING ||
8c47c732 1355 s->type == SERVICE_DBUS ||
34e9ba66 1356 s->type == SERVICE_ONESHOT ||
8c47c732 1357 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1358 s->deserialized_state == SERVICE_START_POST ||
1359 s->deserialized_state == SERVICE_RUNNING ||
1360 s->deserialized_state == SERVICE_RELOAD ||
1361 s->deserialized_state == SERVICE_STOP ||
1362 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1363 s->deserialized_state == SERVICE_STOP_SIGKILL)
1364 if (s->main_pid > 0)
1365 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1366 return r;
1367
1368 if (s->deserialized_state == SERVICE_START_PRE ||
1369 s->deserialized_state == SERVICE_START ||
1370 s->deserialized_state == SERVICE_START_POST ||
1371 s->deserialized_state == SERVICE_RELOAD ||
1372 s->deserialized_state == SERVICE_STOP ||
1373 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1374 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1375 s->deserialized_state == SERVICE_STOP_POST ||
1376 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1377 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1378 if (s->control_pid > 0)
1379 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1380 return r;
1381
1382 service_set_state(s, s->deserialized_state);
1383 }
1384
1385 return 0;
1386}
1387
44d8db9e
LP		 1388static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1389 Iterator i;
1390 int r;
1391 int *rfds = NULL;
1392 unsigned rn_fds = 0;
3e33402a 1393 Set *set;
47be870b 1394 Socket *sock;
44d8db9e
LP		 1395
1396 assert(s);
1397 assert(fds);
1398 assert(n_fds);
1399
6cf6bbc2
LP		 1400 if (s->socket_fd >= 0)
1401 return 0;
1402
3e33402a
LP		 1403 if ((r = service_get_sockets(s, &set)) < 0)
1404 return r;
1405
47be870b 1406 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1407 int *cfds;
1408 unsigned cn_fds;
1409
47be870b 1410 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1411 goto fail;
1412
1413 if (!cfds)
1414 continue;
1415
1416 if (!rfds) {
1417 rfds = cfds;
1418 rn_fds = cn_fds;
1419 } else {
1420 int *t;
1421
1422 if (!(t = new(int, rn_fds+cn_fds))) {
1423 free(cfds);
1424 r = -ENOMEM;
1425 goto fail;
1426 }
1427
1428 memcpy(t, rfds, rn_fds);
1429 memcpy(t+rn_fds, cfds, cn_fds);
1430 free(rfds);
1431 free(cfds);
1432
1433 rfds = t;
1434 rn_fds = rn_fds+cn_fds;
1435 }
1436 }
1437
1438 *fds = rfds;
1439 *n_fds = rn_fds;
3e33402a
LP		 1440
1441 set_free(set);
1442
44d8db9e
LP		 1443 return 0;
1444
1445fail:
3e33402a 1446 set_free(set);
44d8db9e 1447 free(rfds);
3e33402a 1448
44d8db9e
LP		 1449 return r;
1450}
1451
81a2b7ce
LP		 1452static int service_spawn(
1453 Service *s,
1454 ExecCommand *c,
1455 bool timeout,
1456 bool pass_fds,
1457 bool apply_permissions,
1458 bool apply_chroot,
1e3ad081 1459 bool apply_tty_stdin,
c952c6ec 1460 bool set_notify_socket,
81a2b7ce
LP		 1461 pid_t *_pid) {
1462
034c6ed7
LP		 1463 pid_t pid;
1464 int r;
6cf6bbc2 1465 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1466 unsigned n_fds = 0, n_env = 0;
1467 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1468
1469 assert(s);
1470 assert(c);
1471 assert(_pid);
1472
6cf6bbc2
LP		 1473 if (pass_fds ||
1474 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1475 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1476 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1477
4f2d528d
LP		 1478 if (s->socket_fd >= 0) {
1479 fds = &s->socket_fd;
1480 n_fds = 1;
6cf6bbc2
LP		 1481 } else {
1482 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1483 goto fail;
1484
1485 fds = fdsbuf;
1486 }
4f2d528d 1487 }
44d8db9e 1488
e558336f 1489 if (timeout && s->timeout_usec) {
acbb0225 1490 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1491 goto fail;
1492 } else
acbb0225 1493 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1494
9e2f7c11
LP		 1495 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1496 r = -ENOMEM;
1497 goto fail;
1498 }
1499
2105e76a
LP		 1500 if (!(our_env = new0(char*, 3))) {
1501 r = -ENOMEM;
1502 goto fail;
1503 }
c952c6ec 1504
2105e76a
LP		 1505 if (set_notify_socket)
1506 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1507 r = -ENOMEM;
1508 goto fail;
1509 }
1510
2105e76a
LP		 1511 if (s->main_pid > 0)
1512 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1513 r = -ENOMEM;
1514 goto fail;
1515 }
2105e76a
LP		 1516
1517 if (!(final_env = strv_env_merge(2,
1518 s->meta.manager->environment,
1519 our_env,
1520 NULL))) {
1521 r = -ENOMEM;
1522 goto fail;
1523 }
c952c6ec 1524
9e2f7c11
LP		 1525 r = exec_spawn(c,
1526 argv,
1527 &s->exec_context,
1528 fds, n_fds,
2105e76a 1529 final_env,
9e2f7c11
LP		 1530 apply_permissions,
1531 apply_chroot,
1e3ad081 1532 apply_tty_stdin,
4cd1fbcc
LP		 1533 s->meta.manager->confirm_spawn,
1534 s->meta.cgroup_bondings,
9e2f7c11
LP		 1535 &pid);
1536
9e2f7c11 1537 if (r < 0)
034c6ed7
LP		 1538 goto fail;
1539
4f2d528d 1540
87f0e418 1541 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1542 /* FIXME: we need to do something here */
1543 goto fail;
1544
2105e76a
LP		 1545 free(fdsbuf);
1546 strv_free(argv);
1547 strv_free(our_env);
1548 strv_free(final_env);
1549
034c6ed7
LP		 1550 *_pid = pid;
1551
5cb5a6ff 1552 return 0;
034c6ed7
LP		 1553
1554fail:
2105e76a 1555 free(fdsbuf);
c952c6ec 1556 strv_free(argv);
2105e76a
LP		 1557 strv_free(our_env);
1558 strv_free(final_env);
c952c6ec 1559
034c6ed7 1560 if (timeout)
acbb0225 1561 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1562
1563 return r;
1564}
1565
80876c20
LP		 1566static int main_pid_good(Service *s) {
1567 assert(s);
1568
1569 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1570 * don't know */
1571
1572 /* If we know the pid file, then lets just check if it is
1573 * still valid */
1574 if (s->main_pid_known)
1575 return s->main_pid > 0;
1576
1577 /* We don't know the pid */
1578 return -EAGAIN;
1579}
1580
1581static int control_pid_good(Service *s) {
1582 assert(s);
1583
1584 return s->control_pid > 0;
1585}
1586
1587static int cgroup_good(Service *s) {
1588 int r;
1589
1590 assert(s);
1591
4cd1fbcc 1592 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1593 return r;
1594
1595 return !r;
1596}
1597
034c6ed7
LP		 1598static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1599 int r;
1600 assert(s);
1601
1602 if (!success)
1603 s->failure = true;
1604
1605 if (allow_restart &&
47342320 1606 !s->forbid_restart &&
034c6ed7
LP		 1607 (s->restart == SERVICE_RESTART_ALWAYS ||
1608 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1609
acbb0225 1610 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1611 goto fail;
1612
1613 service_set_state(s, SERVICE_AUTO_RESTART);
1614 } else
fdf20a31 1615 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1616
47342320
LP		 1617 s->forbid_restart = false;
1618
034c6ed7
LP		 1619 return;
1620
1621fail:
4cd1fbcc 1622 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1623 service_enter_dead(s, false, false);
1624}
1625
1626static void service_enter_signal(Service *s, ServiceState state, bool success);
1627
1628static void service_enter_stop_post(Service *s, bool success) {
1629 int r;
1630 assert(s);
1631
1632 if (!success)
1633 s->failure = true;
1634
5e94833f
LP		 1635 service_unwatch_control_pid(s);
1636
a16e1123 1637 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1638 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1639 if ((r = service_spawn(s,
1640 s->control_command,
1641 true,
1642 false,
1643 !s->permissions_start_only,
1644 !s->root_directory_start_only,
1e3ad081 1645 true,
c952c6ec 1646 false,
81a2b7ce 1647 &s->control_pid)) < 0)
034c6ed7
LP		 1648 goto fail;
1649
d6ea93e3 1650
80876c20
LP		 1651 service_set_state(s, SERVICE_STOP_POST);
1652 } else
1653 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1654
1655 return;
1656
1657fail:
4cd1fbcc 1658 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1659 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1660}
1661
1662static void service_enter_signal(Service *s, ServiceState state, bool success) {
1663 int r;
ca949c9d
LP		 1664 Set *pid_set = NULL;
1665 bool wait_for_exit = false;
034c6ed7
LP		 1666
1667 assert(s);
1668
1669 if (!success)
1670 s->failure = true;
1671
2e22afe9
LP		 1672 if (s->exec_context.kill_mode != KILL_NONE) {
1673 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1674
ca949c9d
LP		 1675 if (s->main_pid > 0) {
1676 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1677 -s->main_pid :
1678 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1679
ca949c9d
LP		 1680 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1681 else
1682 wait_for_exit = true;
034c6ed7
LP		 1683 }
1684
ca949c9d
LP		 1685 if (s->control_pid > 0) {
1686 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1687 -s->control_pid :
1688 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1689
ca949c9d
LP		 1690 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1691 else
1692 wait_for_exit = true;
1693 }
50159e6a 1694
ca949c9d 1695 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1696
ca949c9d
LP		 1697 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1698 r = -ENOMEM;
50159e6a 1699 goto fail;
ca949c9d
LP		 1700 }
1701
1702 /* Exclude the main/control pids from being killed via the cgroup */
1703 if (s->main_pid > 0)
1704 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1705 goto fail;
1706
1707 if (s->control_pid > 0)
1708 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1709 goto fail;
1710
1711 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1712 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1713 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1714 } else if (r > 0)
ca949c9d
LP		 1715 wait_for_exit = true;
1716
1717 set_free(pid_set);
50159e6a 1718 }
d6ea93e3 1719 }
034c6ed7 1720
ca949c9d 1721 if (wait_for_exit) {
e558336f
LP		 1722 if (s->timeout_usec > 0)
1723 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1724 goto fail;
d6ea93e3 1725
80876c20
LP		 1726 service_set_state(s, state);
1727 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1728 service_enter_stop_post(s, true);
1729 else
034c6ed7
LP		 1730 service_enter_dead(s, true, true);
1731
1732 return;
1733
1734fail:
4cd1fbcc 1735 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1736
80876c20 1737 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1738 service_enter_stop_post(s, false);
1739 else
1740 service_enter_dead(s, false, true);
ca949c9d
LP		 1741
1742 if (pid_set)
1743 set_free(pid_set);
034c6ed7
LP		 1744}
1745
1746static void service_enter_stop(Service *s, bool success) {
1747 int r;
5925dd3c 1748
034c6ed7
LP		 1749 assert(s);
1750
1751 if (!success)
1752 s->failure = true;
1753
5e94833f
LP		 1754 service_unwatch_control_pid(s);
1755
a16e1123 1756 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1757 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1758 if ((r = service_spawn(s,
1759 s->control_command,
1760 true,
1761 false,
1762 !s->permissions_start_only,
1763 !s->root_directory_start_only,
c952c6ec 1764 false,
1e3ad081 1765 false,
e55224ca 1766 &s->control_pid)) < 0)
034c6ed7
LP		 1767 goto fail;
1768
80876c20
LP		 1769 service_set_state(s, SERVICE_STOP);
1770 } else
034c6ed7
LP		 1771 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1772
1773 return;
1774
1775fail:
4cd1fbcc 1776 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1777 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1778}
1779
80876c20 1780static void service_enter_running(Service *s, bool success) {
4eab639f 1781 int main_pid_ok, cgroup_ok;
80876c20
LP		 1782 assert(s);
1783
1784 if (!success)
1785 s->failure = true;
1786
4eab639f
LP		 1787 main_pid_ok = main_pid_good(s);
1788 cgroup_ok = cgroup_good(s);
1789
1790 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1791 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1792 service_set_state(s, SERVICE_RUNNING);
02ee865a 1793 else if (s->remain_after_exit)
80876c20
LP		 1794 service_set_state(s, SERVICE_EXITED);
1795 else
1796 service_enter_stop(s, true);
1797}
1798
034c6ed7
LP		 1799static void service_enter_start_post(Service *s) {
1800 int r;
1801 assert(s);
1802
5e94833f
LP		 1803 service_unwatch_control_pid(s);
1804
a16e1123 1805 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1806 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1807 if ((r = service_spawn(s,
1808 s->control_command,
1809 true,
1810 false,
1811 !s->permissions_start_only,
1812 !s->root_directory_start_only,
c952c6ec 1813 false,
1e3ad081 1814 false,
e55224ca 1815 &s->control_pid)) < 0)
034c6ed7
LP		 1816 goto fail;
1817
80876c20
LP		 1818 service_set_state(s, SERVICE_START_POST);
1819 } else
1820 service_enter_running(s, true);
034c6ed7
LP		 1821
1822 return;
1823
1824fail:
4cd1fbcc 1825 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1826 service_enter_stop(s, false);
1827}
1828
1829static void service_enter_start(Service *s) {
1830 pid_t pid;
1831 int r;
1832
1833 assert(s);
1834
1835 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1836 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1837
80876c20
LP		 1838 if (s->type == SERVICE_FORKING)
1839 service_unwatch_control_pid(s);
1840 else
1841 service_unwatch_main_pid(s);
1842
34e9ba66
LP		 1843 s->control_command_id = SERVICE_EXEC_START;
1844 s->control_command = s->exec_command[SERVICE_EXEC_START];
1845
81a2b7ce 1846 if ((r = service_spawn(s,
34e9ba66 1847 s->control_command,
8c47c732 1848 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1849 true,
1850 true,
1851 true,
1e3ad081 1852 true,
c952c6ec 1853 s->notify_access != NOTIFY_NONE,
81a2b7ce 1854 &pid)) < 0)
034c6ed7
LP		 1855 goto fail;
1856
1857 if (s->type == SERVICE_SIMPLE) {
1858 /* For simple services we immediately start
1859 * the START_POST binaries. */
1860
5925dd3c 1861 service_set_main_pid(s, pid);
034c6ed7
LP		 1862 service_enter_start_post(s);
1863
1864 } else if (s->type == SERVICE_FORKING) {
1865
1866 /* For forking services we wait until the start
1867 * process exited. */
1868
e55224ca 1869 s->control_pid = pid;
80876c20
LP		 1870 service_set_state(s, SERVICE_START);
1871
34e9ba66 1872 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 1873 s->type == SERVICE_DBUS ||
1874 s->type == SERVICE_NOTIFY) {
7d55e835 1875
34e9ba66 1876 /* For oneshot services we wait until the start
7d55e835
LP		 1877 * process exited, too, but it is our main process. */
1878
05e343b7 1879 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1880 * but wait for the bus name to appear on the
1881 * bus. Notify services are similar. */
05e343b7 1882
5925dd3c 1883 service_set_main_pid(s, pid);
80876c20 1884 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1885 } else
1886 assert_not_reached("Unknown service type");
1887
1888 return;
1889
1890fail:
4cd1fbcc 1891 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1892 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1893}
1894
1895static void service_enter_start_pre(Service *s) {
1896 int r;
1897
1898 assert(s);
1899
5e94833f
LP		 1900 service_unwatch_control_pid(s);
1901
a16e1123 1902 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1903 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1904 if ((r = service_spawn(s,
1905 s->control_command,
1906 true,
1907 false,
1908 !s->permissions_start_only,
1909 !s->root_directory_start_only,
1e3ad081 1910 true,
c952c6ec 1911 false,
e55224ca 1912 &s->control_pid)) < 0)
034c6ed7
LP		 1913 goto fail;
1914
80876c20
LP		 1915 service_set_state(s, SERVICE_START_PRE);
1916 } else
034c6ed7
LP		 1917 service_enter_start(s);
1918
1919 return;
1920
1921fail:
4cd1fbcc 1922 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1923 service_enter_dead(s, false, true);
1924}
1925
1926static void service_enter_restart(Service *s) {
1927 int r;
398ef8ba
LP		 1928 DBusError error;
1929
034c6ed7 1930 assert(s);
398ef8ba 1931 dbus_error_init(&error);
034c6ed7 1932
9ea9a0c8
LP		 1933 service_enter_dead(s, true, false);
1934
7b2603e6 1935 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 1936 goto fail;
1937
4cd1fbcc 1938 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 1939 return;
1940
1941fail:
398ef8ba 1942 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 1943 service_enter_dead(s, false, false);
398ef8ba
LP		 1944
1945 dbus_error_free(&error);
034c6ed7
LP		 1946}
1947
1948static void service_enter_reload(Service *s) {
1949 int r;
1950
1951 assert(s);
1952
5e94833f
LP		 1953 service_unwatch_control_pid(s);
1954
a16e1123 1955 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 1956 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 1957 if ((r = service_spawn(s,
1958 s->control_command,
1959 true,
1960 false,
1961 !s->permissions_start_only,
1962 !s->root_directory_start_only,
c952c6ec 1963 false,
1e3ad081 1964 false,
e55224ca 1965 &s->control_pid)) < 0)
034c6ed7
LP		 1966 goto fail;
1967
80876c20
LP		 1968 service_set_state(s, SERVICE_RELOAD);
1969 } else
1970 service_enter_running(s, true);
034c6ed7
LP		 1971
1972 return;
1973
1974fail:
4cd1fbcc 1975 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1976 service_enter_stop(s, false);
1977}
1978
34e9ba66 1979static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 1980 int r;
1981
1982 assert(s);
1983 assert(s->control_command);
1984 assert(s->control_command->command_next);
1985
1986 if (!success)
1987 s->failure = true;
1988
34e9ba66 1989 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 1990
34e9ba66 1991 s->control_command = s->control_command->command_next;
5e94833f
LP		 1992 service_unwatch_control_pid(s);
1993
81a2b7ce
LP		 1994 if ((r = service_spawn(s,
1995 s->control_command,
1996 true,
1997 false,
1998 !s->permissions_start_only,
1999 !s->root_directory_start_only,
5830833f
LP		 2000 s->control_command_id == SERVICE_EXEC_START_PRE ||
2001 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2002 false,
e55224ca 2003 &s->control_pid)) < 0)
034c6ed7
LP		 2004 goto fail;
2005
2006 return;
2007
2008fail:
34e9ba66 2009 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2010
80876c20
LP		 2011 if (s->state == SERVICE_START_PRE)
2012 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2013 else if (s->state == SERVICE_STOP)
2014 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2015 else if (s->state == SERVICE_STOP_POST)
2016 service_enter_dead(s, false, true);
2017 else
2018 service_enter_stop(s, false);
5cb5a6ff
LP		 2019}
2020
34e9ba66
LP		 2021static void service_run_next_main(Service *s, bool success) {
2022 pid_t pid;
2023 int r;
2024
2025 assert(s);
2026 assert(s->control_command);
2027 assert(s->control_command->command_next);
2028
2029 if (!success)
2030 s->failure = true;
2031
2032 assert(s->control_command_id == SERVICE_EXEC_START);
2033 assert(s->type == SERVICE_ONESHOT);
2034
2035 s->control_command = s->control_command->command_next;
2036 service_unwatch_main_pid(s);
2037
2038 if ((r = service_spawn(s,
2039 s->control_command,
2040 false,
2041 true,
2042 true,
2043 true,
2044 true,
2045 s->notify_access != NOTIFY_NONE,
2046 &pid)) < 0)
2047 goto fail;
2048
2049 service_set_main_pid(s, pid);
2050
2051 return;
2052
2053fail:
2054 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2055 service_enter_stop(s, false);
2056}
2057
87f0e418
LP		 2058static int service_start(Unit *u) {
2059 Service *s = SERVICE(u);
5cb5a6ff
LP		 2060
2061 assert(s);
2062
034c6ed7
LP		 2063 /* We cannot fulfill this request right now, try again later
2064 * please! */
2065 if (s->state == SERVICE_STOP ||
2066 s->state == SERVICE_STOP_SIGTERM ||
2067 s->state == SERVICE_STOP_SIGKILL ||
2068 s->state == SERVICE_STOP_POST ||
2069 s->state == SERVICE_FINAL_SIGTERM ||
2070 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2071 return -EAGAIN;
2072
034c6ed7
LP		 2073 /* Already on it! */
2074 if (s->state == SERVICE_START_PRE ||
2075 s->state == SERVICE_START ||
2076 s->state == SERVICE_START_POST)
2077 return 0;
2078
fdf20a31 2079 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2080
1e2e8133
LP		 2081 /* Make sure we don't enter a busy loop of some kind. */
2082 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2083 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2084 return -ECANCELED;
1e2e8133
LP		 2085 }
2086
cac6f7c8
LP		 2087 if ((s->exec_context.std_input == EXEC_INPUT_SOCKET ||
2088 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
2089 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) &&
2090 s->socket_fd < 0) {
2091 log_warning("%s can only be started with a per-connection socket.", u->meta.id);
2092 return -EINVAL;
2093 }
2094
034c6ed7
LP		 2095 s->failure = false;
2096 s->main_pid_known = false;
47342320 2097 s->forbid_restart = false;
034c6ed7
LP		 2098
2099 service_enter_start_pre(s);
2100 return 0;
5cb5a6ff
LP		 2101}
2102
87f0e418
LP		 2103static int service_stop(Unit *u) {
2104 Service *s = SERVICE(u);
5cb5a6ff
LP		 2105
2106 assert(s);
2107
3f6c78dc
LP		 2108 /* This is a user request, so don't do restarts on this
2109 * shutdown. */
47342320 2110 s->forbid_restart = true;
034c6ed7 2111
e537352b
LP		 2112 /* Already on it */
2113 if (s->state == SERVICE_STOP ||
2114 s->state == SERVICE_STOP_SIGTERM ||
2115 s->state == SERVICE_STOP_SIGKILL ||
2116 s->state == SERVICE_STOP_POST ||
2117 s->state == SERVICE_FINAL_SIGTERM ||
2118 s->state == SERVICE_FINAL_SIGKILL)
2119 return 0;
2120
3f6c78dc 2121 /* Don't allow a restart */
034c6ed7
LP		 2122 if (s->state == SERVICE_AUTO_RESTART) {
2123 service_set_state(s, SERVICE_DEAD);
2124 return 0;
2125 }
2126
3f6c78dc
LP		 2127 /* If there's already something running we go directly into
2128 * kill mode. */
2129 if (s->state == SERVICE_START_PRE ||
2130 s->state == SERVICE_START ||
2131 s->state == SERVICE_START_POST ||
2132 s->state == SERVICE_RELOAD) {
2133 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2134 return 0;
2135 }
5cb5a6ff 2136
3f6c78dc
LP		 2137 assert(s->state == SERVICE_RUNNING ||
2138 s->state == SERVICE_EXITED);
3a762661 2139
034c6ed7 2140 service_enter_stop(s, true);
5cb5a6ff
LP		 2141 return 0;
2142}
2143
87f0e418
LP		 2144static int service_reload(Unit *u) {
2145 Service *s = SERVICE(u);
034c6ed7
LP		 2146
2147 assert(s);
2148
80876c20 2149 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2150
2151 service_enter_reload(s);
5cb5a6ff
LP		 2152 return 0;
2153}
2154
87f0e418
LP		 2155static bool service_can_reload(Unit *u) {
2156 Service *s = SERVICE(u);
034c6ed7
LP		 2157
2158 assert(s);
2159
2160 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2161}
2162
a16e1123
LP		 2163static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2164 Service *s = SERVICE(u);
2165
2166 assert(u);
2167 assert(f);
2168 assert(fds);
2169
2170 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2171 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2172
2173 if (s->control_pid > 0)
5925dd3c 2174 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2175
5925dd3c
LP		 2176 if (s->main_pid_known && s->main_pid > 0)
2177 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2178
2179 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2180
3a2776bc
LP		 2181 if (s->status_text)
2182 unit_serialize_item(u, f, "status-text", s->status_text);
2183
a16e1123
LP		 2184 /* There's a minor uncleanliness here: if there are multiple
2185 * commands attached here, we will start from the first one
2186 * again */
2187 if (s->control_command_id >= 0)
825636e5 2188 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2189
2190 if (s->socket_fd >= 0) {
2191 int copy;
2192
2193 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2194 return copy;
2195
2196 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2197 }
2198
ecdbca40
LP		 2199 if (s->main_exec_status.pid > 0) {
2200 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2201
2202 if (s->main_exec_status.start_timestamp.realtime > 0) {
2203 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
2204 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2205
2206 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2207 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2208 }
2209
2210 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2211 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2212 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2213 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2214 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2215
2216 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2217 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2218 }
2219 }
2220
a16e1123
LP		 2221 return 0;
2222}
2223
2224static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2225 Service *s = SERVICE(u);
a16e1123
LP		 2226
2227 assert(u);
2228 assert(key);
2229 assert(value);
2230 assert(fds);
2231
2232 if (streq(key, "state")) {
2233 ServiceState state;
2234
2235 if ((state = service_state_from_string(value)) < 0)
2236 log_debug("Failed to parse state value %s", value);
2237 else
2238 s->deserialized_state = state;
2239 } else if (streq(key, "failure")) {
2240 int b;
2241
2242 if ((b = parse_boolean(value)) < 0)
2243 log_debug("Failed to parse failure value %s", value);
2244 else
2245 s->failure = b || s->failure;
2246 } else if (streq(key, "control-pid")) {
5925dd3c 2247 pid_t pid;
a16e1123 2248
e364ad06 2249 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2250 log_debug("Failed to parse control-pid value %s", value);
2251 else
e55224ca 2252 s->control_pid = pid;
a16e1123 2253 } else if (streq(key, "main-pid")) {
5925dd3c 2254 pid_t pid;
a16e1123 2255
e364ad06 2256 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2257 log_debug("Failed to parse main-pid value %s", value);
2258 else
5925dd3c 2259 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2260 } else if (streq(key, "main-pid-known")) {
2261 int b;
2262
2263 if ((b = parse_boolean(value)) < 0)
2264 log_debug("Failed to parse main-pid-known value %s", value);
2265 else
2266 s->main_pid_known = b;
3a2776bc
LP		 2267 } else if (streq(key, "status-text")) {
2268 char *t;
2269
2270 if ((t = strdup(value))) {
2271 free(s->status_text);
2272 s->status_text = t;
2273 }
2274
a16e1123
LP		 2275 } else if (streq(key, "control-command")) {
2276 ServiceExecCommand id;
2277
2278 if ((id = service_exec_command_from_string(value)) < 0)
2279 log_debug("Failed to parse exec-command value %s", value);
2280 else {
2281 s->control_command_id = id;
2282 s->control_command = s->exec_command[id];
2283 }
2284 } else if (streq(key, "socket-fd")) {
2285 int fd;
2286
2287 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2288 log_debug("Failed to parse socket-fd value %s", value);
2289 else {
2290
2291 if (s->socket_fd >= 0)
2292 close_nointr_nofail(s->socket_fd);
2293 s->socket_fd = fdset_remove(fds, fd);
2294 }
ecdbca40
LP		 2295 } else if (streq(key, "main-exec-status-pid")) {
2296 pid_t pid;
2297
e364ad06 2298 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2299 log_debug("Failed to parse main-exec-status-pid value %s", value);
2300 else
2301 s->main_exec_status.pid = pid;
2302 } else if (streq(key, "main-exec-status-code")) {
2303 int i;
2304
e364ad06 2305 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2306 log_debug("Failed to parse main-exec-status-code value %s", value);
2307 else
2308 s->main_exec_status.code = i;
2309 } else if (streq(key, "main-exec-status-status")) {
2310 int i;
2311
e364ad06 2312 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2313 log_debug("Failed to parse main-exec-status-status value %s", value);
2314 else
2315 s->main_exec_status.status = i;
2316 } else if (streq(key, "main-exec-status-start-realtime")) {
2317 uint64_t k;
2318
e364ad06 2319 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2320 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2321 else
2322 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2323 } else if (streq(key, "main-exec-status-start-monotonic")) {
2324 uint64_t k;
2325
e364ad06 2326 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2327 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2328 else
2329 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2330 } else if (streq(key, "main-exec-status-exit-realtime")) {
2331 uint64_t k;
2332
e364ad06 2333 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2334 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2335 else
2336 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2337 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2338 uint64_t k;
2339
e364ad06 2340 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2341 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2342 else
2343 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2344 } else
2345 log_debug("Unknown serialization key '%s'", key);
2346
2347 return 0;
2348}
2349
87f0e418
LP		 2350static UnitActiveState service_active_state(Unit *u) {
2351 assert(u);
5cb5a6ff 2352
acbb0225 2353 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2354}
2355
10a94420
LP		 2356static const char *service_sub_state_to_string(Unit *u) {
2357 assert(u);
2358
2359 return service_state_to_string(SERVICE(u)->state);
2360}
2361
07459bb6 2362#ifdef HAVE_SYSV_COMPAT
701cc384
LP		 2363static bool service_check_gc(Unit *u) {
2364 Service *s = SERVICE(u);
2365
2366 assert(s);
2367
2368 return !!s->sysv_path;
2369}
07459bb6 2370#endif
701cc384
LP		 2371
2372static bool service_check_snapshot(Unit *u) {
2373 Service *s = SERVICE(u);
2374
2375 assert(s);
2376
2377 return !s->got_socket_fd;
2378}
2379
87f0e418
LP		 2380static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2381 Service *s = SERVICE(u);
034c6ed7 2382 bool success;
5cb5a6ff
LP		 2383
2384 assert(s);
034c6ed7
LP		 2385 assert(pid >= 0);
2386
f21781d5 2387 if (!s->meta.fragment_path)
d06dacd0
LP		 2388 success = is_clean_exit_lsb(code, status);
2389 else
2390 success = is_clean_exit(code, status);
034c6ed7
LP		 2391
2392 if (s->main_pid == pid) {
2393
034c6ed7 2394 s->main_pid = 0;
34e9ba66 2395 exec_status_exit(&s->main_exec_status, pid, code, status);
034c6ed7 2396
34e9ba66
LP		 2397 if (s->type != SERVICE_FORKING && s->control_command) {
2398 s->control_command->exec_status = s->main_exec_status;
b708e7ce 2399
34e9ba66 2400 if (s->control_command->ignore)
b708e7ce 2401 success = true;
034c6ed7
LP		 2402 }
2403
92abbefb
LP		 2404 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2405 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2406 s->failure = s->failure || !success;
034c6ed7 2407
34e9ba66
LP		 2408 if (s->control_command &&
2409 s->control_command->command_next &&
2410 success) {
034c6ed7 2411
34e9ba66
LP		 2412 /* There is another command to *
2413 * execute, so let's do that. */
034c6ed7 2414
34e9ba66
LP		 2415 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2416 service_run_next_main(s, success);
034c6ed7 2417
34e9ba66
LP		 2418 } else {
2419
2420 /* The service exited, so the service is officially
2421 * gone. */
2422
2423 s->control_command = NULL;
2424 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2425
2426 switch (s->state) {
2427
2428 case SERVICE_START_POST:
2429 case SERVICE_RELOAD:
2430 case SERVICE_STOP:
2431 /* Need to wait until the operation is
2432 * done */
c4653a4d 2433 break;
7d55e835 2434
34e9ba66
LP		 2435 case SERVICE_START:
2436 if (s->type == SERVICE_ONESHOT) {
2437 /* This was our main goal, so let's go on */
2438 if (success)
2439 service_enter_start_post(s);
2440 else
2441 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2442 break;
2443 } else {
2444 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2445
34e9ba66
LP		 2446 /* Fall through */
2447 }
034c6ed7 2448
34e9ba66
LP		 2449 case SERVICE_RUNNING:
2450 service_enter_running(s, success);
2451 break;
034c6ed7 2452
34e9ba66
LP		 2453 case SERVICE_STOP_SIGTERM:
2454 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2455
34e9ba66
LP		 2456 if (!control_pid_good(s))
2457 service_enter_stop_post(s, success);
5cb5a6ff 2458
34e9ba66
LP		 2459 /* If there is still a control process, wait for that first */
2460 break;
2461
2462 default:
2463 assert_not_reached("Uh, main process died at wrong time.");
2464 }
034c6ed7 2465 }
5cb5a6ff 2466
034c6ed7 2467 } else if (s->control_pid == pid) {
034c6ed7 2468
34e9ba66
LP		 2469 s->control_pid = 0;
2470
b708e7ce 2471 if (s->control_command) {
b58b4116 2472 exec_status_exit(&s->control_command->exec_status, pid, code, status);
a16e1123 2473
b708e7ce
LP		 2474 if (s->control_command->ignore)
2475 success = true;
2476 }
2477
34e9ba66 2478 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2479 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2480 s->failure = s->failure || !success;
034c6ed7 2481
34e9ba66
LP		 2482 if (s->control_command &&
2483 s->control_command->command_next &&
2484 success) {
034c6ed7
LP		 2485
2486 /* There is another command to *
2487 * execute, so let's do that. */
2488
34e9ba66
LP		 2489 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2490 service_run_next_control(s, success);
034c6ed7 2491
80876c20 2492 } else {
034c6ed7
LP		 2493 /* No further commands for this step, so let's
2494 * figure out what to do next */
2495
a16e1123
LP		 2496 s->control_command = NULL;
2497 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2498
9e2f7c11 2499 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2500
034c6ed7
LP		 2501 switch (s->state) {
2502
2503 case SERVICE_START_PRE:
2504 if (success)
2505 service_enter_start(s);
2506 else
80876c20 2507 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2508 break;
2509
2510 case SERVICE_START:
2511 assert(s->type == SERVICE_FORKING);
2512
2513 /* Let's try to load the pid
2514 * file here if we can. We
2515 * ignore the return value,
2516 * since the PID file might
2517 * actually be created by a
2518 * START_POST script */
2519
2520 if (success) {
2521 if (s->pid_file)
2522 service_load_pid_file(s);
2523
2524 service_enter_start_post(s);
2525 } else
80876c20 2526 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2527
2528 break;
2529
2530 case SERVICE_START_POST:
2531 if (success && s->pid_file && !s->main_pid_known) {
2532 int r;
2533
2534 /* Hmm, let's see if we can
2535 * load the pid now after the
2536 * start-post scripts got
2537 * executed. */
2538
2539 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2540 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2541 }
2542
2543 /* Fall through */
2544
2545 case SERVICE_RELOAD:
80876c20
LP		 2546 if (success)
2547 service_enter_running(s, true);
2548 else
034c6ed7
LP		 2549 service_enter_stop(s, false);
2550
2551 break;
2552
2553 case SERVICE_STOP:
80876c20 2554 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2555 break;
2556
2557 case SERVICE_STOP_SIGTERM:
2558 case SERVICE_STOP_SIGKILL:
2559 if (main_pid_good(s) <= 0)
2560 service_enter_stop_post(s, success);
2561
2562 /* If there is still a service
2563 * process around, wait until
2564 * that one quit, too */
2565 break;
2566
2567 case SERVICE_STOP_POST:
2568 case SERVICE_FINAL_SIGTERM:
2569 case SERVICE_FINAL_SIGKILL:
2570 service_enter_dead(s, success, true);
2571 break;
2572
2573 default:
2574 assert_not_reached("Uh, control process died at wrong time.");
2575 }
2576 }
8c47c732 2577 }
c4e2ceae
LP		 2578
2579 /* Notify clients about changed exit status */
2580 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2581}
2582
acbb0225 2583static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2584 Service *s = SERVICE(u);
034c6ed7
LP		 2585
2586 assert(s);
2587 assert(elapsed == 1);
2588
acbb0225 2589 assert(w == &s->timer_watch);
034c6ed7
LP		 2590
2591 switch (s->state) {
2592
2593 case SERVICE_START_PRE:
2594 case SERVICE_START:
9e2f7c11 2595 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2596 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2597 break;
2598
034c6ed7
LP		 2599 case SERVICE_START_POST:
2600 case SERVICE_RELOAD:
9e2f7c11 2601 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2602 service_enter_stop(s, false);
2603 break;
2604
2605 case SERVICE_STOP:
9e2f7c11 2606 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2607 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2608 break;
2609
2610 case SERVICE_STOP_SIGTERM:
9e2f7c11 2611 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2612 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2613 break;
2614
2615 case SERVICE_STOP_SIGKILL:
2616 /* Uh, wie sent a SIGKILL and it is still not gone?
2617 * Must be something we cannot kill, so let's just be
2618 * weirded out and continue */
2619
9e2f7c11 2620 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2621 service_enter_stop_post(s, false);
2622 break;
2623
2624 case SERVICE_STOP_POST:
9e2f7c11 2625 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2626 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2627 break;
2628
2629 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2630 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2631 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2632 break;
2633
2634 case SERVICE_FINAL_SIGKILL:
fdf20a31 2635 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2636 service_enter_dead(s, false, true);
2637 break;
2638
2639 case SERVICE_AUTO_RESTART:
54165a39 2640 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2641 service_enter_restart(s);
2642 break;
2643
2644 default:
2645 assert_not_reached("Timeout at wrong time.");
2646 }
5cb5a6ff
LP		 2647}
2648
8e274523
LP		 2649static void service_cgroup_notify_event(Unit *u) {
2650 Service *s = SERVICE(u);
2651
2652 assert(u);
2653
9e2f7c11 2654 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2655
2656 switch (s->state) {
2657
2658 /* Waiting for SIGCHLD is usually more interesting,
2659 * because it includes return codes/signals. Which is
2660 * why we ignore the cgroup events for most cases,
2661 * except when we don't know pid which to expect the
2662 * SIGCHLD for. */
2663
2664 case SERVICE_RUNNING:
80876c20 2665 service_enter_running(s, true);
8e274523
LP		 2666 break;
2667
28708d8a
LP		 2668 case SERVICE_STOP_SIGTERM:
2669 case SERVICE_STOP_SIGKILL:
2670 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2671 service_enter_stop_post(s, true);
2672
2673 break;
2674
7f97f0fe
LP		 2675 case SERVICE_FINAL_SIGTERM:
2676 case SERVICE_FINAL_SIGKILL:
2677 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2678 service_enter_dead(s, true, true);
2679
2680 break;
2681
8e274523
LP		 2682 default:
2683 ;
2684 }
2685}
2686
c952c6ec 2687static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2688 Service *s = SERVICE(u);
2689 const char *e;
2690
2691 assert(u);
2692
c952c6ec
LP		 2693 if (s->notify_access == NOTIFY_NONE) {
2694 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2695 u->meta.id, (unsigned long) pid);
2696 return;
2697 }
2698
2699 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2700 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2701 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2702 return;
2703 }
2704
8c47c732
LP		 2705 log_debug("%s: Got message", u->meta.id);
2706
2707 /* Interpret MAINPID= */
2708 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2709 (s->state == SERVICE_START ||
2710 s->state == SERVICE_START_POST ||
2711 s->state == SERVICE_RUNNING ||
2712 s->state == SERVICE_RELOAD)) {
8c47c732 2713
5925dd3c 2714 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2715 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2716 else {
2717 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2718 service_set_main_pid(s, pid);
8c47c732
LP		 2719 }
2720 }
2721
2722 /* Interpret READY= */
2723 if (s->type == SERVICE_NOTIFY &&
2724 s->state == SERVICE_START &&
2725 strv_find(tags, "READY=1")) {
2726 log_debug("%s: got READY=1", u->meta.id);
2727
2728 service_enter_start_post(s);
2729 }
2730
2731 /* Interpret STATUS= */
2732 if ((e = strv_find_prefix(tags, "STATUS="))) {
2733 char *t;
2734
3a2776bc
LP		 2735 if (e[7]) {
2736 if (!(t = strdup(e+7))) {
2737 log_error("Failed to allocate string.");
2738 return;
2739 }
2740
2741 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2742
3a2776bc
LP		 2743 free(s->status_text);
2744 s->status_text = t;
2745 } else {
2746 free(s->status_text);
2747 s->status_text = NULL;
2748 }
8c47c732 2749
8c47c732 2750 }
c4e2ceae
LP		 2751
2752 /* Notify clients about changed status or main pid */
2753 unit_add_to_dbus_queue(u);
8c47c732
LP		 2754}
2755
07459bb6 2756#ifdef HAVE_SYSV_COMPAT
2c4104f0 2757static int service_enumerate(Manager *m) {
2c4104f0
LP		 2758 char **p;
2759 unsigned i;
2760 DIR *d = NULL;
2761 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2762 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2763 Unit *service;
2764 Iterator j;
2c4104f0 2765 int r;
980900c1
TG		 2766#ifdef TARGET_ARCH
2767 Unit *previous = NULL;
2768 char *arch_daemons = NULL;
2769 char *arch_daemons_stripped = NULL;
2770 char **arch_daemons_split = NULL;
2771#endif
2c4104f0
LP		 2772
2773 assert(m);
2774
980900c1
TG		 2775#ifdef TARGET_ARCH
2776 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2777 "DAEMONS", &arch_daemons,
2778 NULL)) < 0) {
2779
2780 if (r != -ENOENT)
2781 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2782
2783 } else if (arch_daemons) {
2784 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2785 arch_daemons_stripped = arch_daemons;
2786 else
2787 arch_daemons_stripped++; /* strip start paren */
2788
2789 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2790
2791 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2792 r = -ENOMEM;
2793 goto finish;
2794 }
2795
2796 STRV_FOREACH(p, arch_daemons_split) {
2797
2798 free(name);
409db002 2799 name = NULL;
980900c1
TG		 2800
2801 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2802 continue;
2803
2804 if (!(name = sysv_translate_name(*p))) {
2805 r = -ENOMEM;
2806 goto finish;
2807 }
2808
2809 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2810 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2811 continue;
2812 }
2813
2814 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2815 goto finish;
2816
2817 if (previous)
2818 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2819 goto finish;
2820
2821 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2822 previous = service;
2823 }
2824 }
2825#endif
2826
c68364b7
LP		 2827 zero(runlevel_services);
2828
84e3543e 2829 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2830 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2831 struct dirent *de;
2832
2833 free(path);
2834 path = NULL;
09cd1ab1 2835 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2836 r = -ENOMEM;
2837 goto finish;
2838 }
2839
2840 if (d)
2841 closedir(d);
2842
2843 if (!(d = opendir(path))) {
2844 if (errno != ENOENT)
2845 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2846
2847 continue;
2848 }
2849
2850 while ((de = readdir(d))) {
db06e3b6 2851 int a, b;
2c4104f0
LP		 2852
2853 if (ignore_file(de->d_name))
2854 continue;
2855
2856 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2857 continue;
2858
2859 if (strlen(de->d_name) < 4)
2860 continue;
2861
db06e3b6
LP		 2862 a = undecchar(de->d_name[1]);
2863 b = undecchar(de->d_name[2]);
2864
2865 if (a < 0 || b < 0)
2866 continue;
2867
2c4104f0
LP		 2868 free(fpath);
2869 fpath = NULL;
09cd1ab1 2870 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2871 r = -ENOMEM;
2872 goto finish;
2873 }
2874
2875 if (access(fpath, X_OK) < 0) {
2876
2877 if (errno != ENOENT)
2878 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2879
2880 continue;
2881 }
2882
2883 free(name);
b7ccee3c 2884 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2885 r = -ENOMEM;
2886 goto finish;
2887 }
2888
398ef8ba 2889 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2890 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2891 continue;
2892 }
2c4104f0 2893
c68364b7
LP		 2894 if (de->d_name[0] == 'S') {
2895
f73d93a4
LP		 2896 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2897 SERVICE(service)->sysv_start_priority =
2898 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 2899
c68364b7 2900 SERVICE(service)->sysv_enabled = true;
f73d93a4 2901 }
db06e3b6 2902
c68364b7
LP		 2903 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
2904 goto finish;
2c4104f0 2905
c68364b7 2906 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 2907 goto finish;
23a177ef 2908
fc5df99e
LP		 2909 } else if (de->d_name[0] == 'K' &&
2910 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2911 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2912
c68364b7
LP		 2913 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
2914 goto finish;
2915
2916 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 2917 goto finish;
2918 }
2919 }
2920 }
2921
c68364b7
LP		 2922 /* Now we loaded all stubs and are aware of the lowest
2923 start-up priority for all services, not let's actually load
2924 the services, this will also tell us which services are
2925 actually native now */
2926 manager_dispatch_load_queue(m);
2927
2928 /* If this is a native service, rely on native ways to pull in
2929 * a service, don't pull it in via sysv rcN.d links. */
2930 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
2931 SET_FOREACH(service, runlevel_services[i], j) {
2932 service = unit_follow_merge(service);
2933
2934 if (service->meta.fragment_path)
2935 continue;
2936
2937 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2938 goto finish;
2939 }
2940
2941 /* We honour K links only for halt/reboot. For the normal
2942 * runlevels we assume the stop jobs will be implicitly added
2943 * by the core logic. Also, we don't really distuingish here
2944 * between the runlevels 0 and 6 and just add them to the
2945 * special shutdown target. On SUSE the boot.d/ runlevel is
2946 * also used for shutdown, so we add links for that too to the
2947 * shutdown target.*/
2948 SET_FOREACH(service, shutdown_services, j) {
2949 service = unit_follow_merge(service);
2950
2951 if (service->meta.fragment_path)
2952 continue;
2953
2954 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2955 goto finish;
2956 }
2957
2c4104f0
LP		 2958 r = 0;
2959
2960finish:
2961 free(path);
2962 free(fpath);
2963 free(name);
980900c1
TG		 2964#ifdef TARGET_ARCH
2965 free(arch_daemons);
2966 free(arch_daemons_split);
2967#endif
fbe9f3a9 2968
c68364b7
LP		 2969 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
2970 set_free(runlevel_services[i]);
2971 set_free(shutdown_services);
2972
fbe9f3a9
LP		 2973 if (d)
2974 closedir(d);
2c4104f0
LP		 2975
2976 return r;
2977}
07459bb6 2978#endif
2c4104f0 2979
05e343b7
LP		 2980static void service_bus_name_owner_change(
2981 Unit *u,
2982 const char *name,
2983 const char *old_owner,
2984 const char *new_owner) {
2985
2986 Service *s = SERVICE(u);
2987
2988 assert(s);
2989 assert(name);
2990
2991 assert(streq(s->bus_name, name));
2992 assert(old_owner || new_owner);
2993
2994 if (old_owner && new_owner)
2995 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2996 else if (old_owner)
2997 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2998 else
2999 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3000
3001 s->bus_name_good = !!new_owner;
3002
3003 if (s->type == SERVICE_DBUS) {
3004
3005 /* service_enter_running() will figure out what to
3006 * do */
3007 if (s->state == SERVICE_RUNNING)
3008 service_enter_running(s, true);
3009 else if (s->state == SERVICE_START && new_owner)
3010 service_enter_start_post(s);
3011
3012 } else if (new_owner &&
3013 s->main_pid <= 0 &&
3014 (s->state == SERVICE_START ||
3015 s->state == SERVICE_START_POST ||
3016 s->state == SERVICE_RUNNING ||
3017 s->state == SERVICE_RELOAD)) {
3018
3019 /* Try to acquire PID from bus service */
3020 log_debug("Trying to acquire PID from D-Bus name...");
3021
3022 bus_query_pid(u->meta.manager, name);
3023 }
3024}
3025
3026static void service_bus_query_pid_done(
3027 Unit *u,
3028 const char *name,
3029 pid_t pid) {
3030
3031 Service *s = SERVICE(u);
3032
3033 assert(s);
3034 assert(name);
3035
3036 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3037
3038 if (s->main_pid <= 0 &&
3039 (s->state == SERVICE_START ||
3040 s->state == SERVICE_START_POST ||
3041 s->state == SERVICE_RUNNING ||
3042 s->state == SERVICE_RELOAD))
5925dd3c 3043 service_set_main_pid(s, pid);
05e343b7
LP		 3044}
3045
6cf6bbc2 3046int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3047 assert(s);
3048 assert(fd >= 0);
3049
3050 /* This is called by the socket code when instantiating a new
3051 * service for a stream socket and the socket needs to be
3052 * configured. */
3053
4cd1fbcc 3054 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3055 return -EINVAL;
3056
3057 if (s->socket_fd >= 0)
3058 return -EBUSY;
3059
3060 if (s->state != SERVICE_DEAD)
3061 return -EAGAIN;
3062
3063 s->socket_fd = fd;
701cc384 3064 s->got_socket_fd = true;
6cf6bbc2
LP		 3065 s->socket = sock;
3066
4f2d528d
LP		 3067 return 0;
3068}
3069
fdf20a31 3070static void service_reset_failed(Unit *u) {
5632e374
LP		 3071 Service *s = SERVICE(u);
3072
3073 assert(s);
3074
fdf20a31 3075 if (s->state == SERVICE_FAILED)
5632e374
LP		 3076 service_set_state(s, SERVICE_DEAD);
3077
3078 s->failure = false;
3079}
3080
94f04347
LP		 3081static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3082 [SERVICE_DEAD] = "dead",
3083 [SERVICE_START_PRE] = "start-pre",
3084 [SERVICE_START] = "start",
3085 [SERVICE_START_POST] = "start-post",
3086 [SERVICE_RUNNING] = "running",
80876c20 3087 [SERVICE_EXITED] = "exited",
94f04347
LP		 3088 [SERVICE_RELOAD] = "reload",
3089 [SERVICE_STOP] = "stop",
3090 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3091 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3092 [SERVICE_STOP_POST] = "stop-post",
3093 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3094 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3095 [SERVICE_FAILED] = "failed",
94f04347
LP		 3096 [SERVICE_AUTO_RESTART] = "auto-restart",
3097};
3098
3099DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3100
3101static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3102 [SERVICE_ONCE] = "once",
3103 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 3104 [SERVICE_RESTART_ALWAYS] = "restart-always",
94f04347
LP		 3105};
3106
3107DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3108
3109static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3110 [SERVICE_SIMPLE] = "simple",
0d624a78 3111 [SERVICE_FORKING] = "forking",
34e9ba66 3112 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3113 [SERVICE_DBUS] = "dbus",
3114 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3115};
3116
3117DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3118
e537352b 3119static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3120 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3121 [SERVICE_EXEC_START] = "ExecStart",
3122 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3123 [SERVICE_EXEC_RELOAD] = "ExecReload",
3124 [SERVICE_EXEC_STOP] = "ExecStop",
3125 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3126};
3127
3128DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3129
c952c6ec
LP		 3130static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3131 [NOTIFY_NONE] = "none",
3132 [NOTIFY_MAIN] = "main",
3133 [NOTIFY_ALL] = "all"
3134};
3135
3136DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3137
87f0e418 3138const UnitVTable service_vtable = {
5cb5a6ff 3139 .suffix = ".service",
9e58ff9c 3140 .show_status = true,
5cb5a6ff 3141
034c6ed7
LP		 3142 .init = service_init,
3143 .done = service_done,
a16e1123
LP		 3144 .load = service_load,
3145
3146 .coldplug = service_coldplug,
034c6ed7 3147
5cb5a6ff
LP		 3148 .dump = service_dump,
3149
3150 .start = service_start,
3151 .stop = service_stop,
3152 .reload = service_reload,
3153
034c6ed7
LP		 3154 .can_reload = service_can_reload,
3155
a16e1123
LP		 3156 .serialize = service_serialize,
3157 .deserialize_item = service_deserialize_item,
3158
5cb5a6ff 3159 .active_state = service_active_state,
10a94420 3160 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3161
07459bb6 3162#ifdef HAVE_SYSV_COMPAT
701cc384 3163 .check_gc = service_check_gc,
07459bb6 3164#endif
701cc384
LP		 3165 .check_snapshot = service_check_snapshot,
3166
034c6ed7
LP		 3167 .sigchld_event = service_sigchld_event,
3168 .timer_event = service_timer_event,
2c4104f0 3169
fdf20a31 3170 .reset_failed = service_reset_failed,
5632e374 3171
8e274523 3172 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3173 .notify_message = service_notify_message,
8e274523 3174
05e343b7
LP		 3175 .bus_name_owner_change = service_bus_name_owner_change,
3176 .bus_query_pid_done = service_bus_query_pid_done,
3177
c4e2ceae 3178 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3179 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3180 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3181
07459bb6 3182#ifdef HAVE_SYSV_COMPAT
2c4104f0 3183 .enumerate = service_enumerate
07459bb6 3184#endif
5cb5a6ff 3185};
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