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shutdown: use correct kexec options
[thirdparty/systemd.git] / src / service.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
2c4104f0
LP		 37
38#define COMMENTS "#;\n"
39#define NEWLINES "\n\r"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
f34277d9
LP		 42
43#define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
44
09cd1ab1
LP		 45typedef enum RunlevelType {
46 RUNLEVEL_UP,
47 RUNLEVEL_DOWN,
fc5df99e 48 RUNLEVEL_SYSINIT
09cd1ab1
LP		 49} RunlevelType;
50
51static const struct {
52 const char *path;
53 const char *target;
54 const RunlevelType type;
55} rcnd_table[] = {
9d25f5ed 56 /* Standard SysV runlevels for start-up */
514f4ef5 57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 62
d4054675 63#ifdef TARGET_SUSE
cfe243e3 64 /* SUSE style boot.d */
fc5df99e 65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 66#endif
fbe9f3a9 67
f5c88ec1 68#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE)
fbe9f3a9 69 /* Debian style rcS.d */
fc5df99e 70 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 71#endif
9d25f5ed
LP		 72
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
75 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
76
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 82};
83
09cd1ab1 84#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 85/* #define RUNLEVELS_DOWN "06" */
86/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 87#endif
09cd1ab1 88
acbb0225 89static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 90 [SERVICE_DEAD] = UNIT_INACTIVE,
91 [SERVICE_START_PRE] = UNIT_ACTIVATING,
92 [SERVICE_START] = UNIT_ACTIVATING,
93 [SERVICE_START_POST] = UNIT_ACTIVATING,
94 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 95 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 96 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 97 [SERVICE_STOP] = UNIT_DEACTIVATING,
98 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
101 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 103 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 104 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 105};
5cb5a6ff 106
a16e1123
LP		 107static void service_init(Unit *u) {
108 Service *s = SERVICE(u);
109
110 assert(u);
111 assert(u->meta.load_state == UNIT_STUB);
112
113 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
114 s->restart_usec = DEFAULT_RESTART_USEC;
115 s->timer_watch.type = WATCH_INVALID;
07459bb6 116#ifdef HAVE_SYSV_COMPAT
a16e1123 117 s->sysv_start_priority = -1;
07459bb6 118#endif
a16e1123
LP		 119 s->socket_fd = -1;
120
121 exec_context_init(&s->exec_context);
122
123 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
124
125 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
126}
127
5e94833f
LP		 128static void service_unwatch_control_pid(Service *s) {
129 assert(s);
130
131 if (s->control_pid <= 0)
132 return;
133
134 unit_unwatch_pid(UNIT(s), s->control_pid);
135 s->control_pid = 0;
136}
137
138static void service_unwatch_main_pid(Service *s) {
139 assert(s);
140
141 if (s->main_pid <= 0)
142 return;
143
144 unit_unwatch_pid(UNIT(s), s->main_pid);
145 s->main_pid = 0;
146}
147
5925dd3c 148static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 149 pid_t ppid;
150
5925dd3c
LP		 151 assert(s);
152
153 if (pid <= 1)
154 return -EINVAL;
155
156 if (pid == getpid())
157 return -EINVAL;
158
e55224ca
LP		 159 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
160 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
161 s->meta.id, (unsigned long) pid);
162
5925dd3c
LP		 163 s->main_pid = pid;
164 s->main_pid_known = true;
165
b58b4116
LP		 166 exec_status_start(&s->main_exec_status, pid);
167
5925dd3c
LP		 168 return 0;
169}
170
4f2d528d
LP		 171static void service_close_socket_fd(Service *s) {
172 assert(s);
173
174 if (s->socket_fd < 0)
175 return;
176
177 close_nointr_nofail(s->socket_fd);
178 s->socket_fd = -1;
179}
180
6cf6bbc2
LP		 181static void service_connection_unref(Service *s) {
182 assert(s);
183
f976f3f6 184 if (!s->accept_socket)
6cf6bbc2
LP		 185 return;
186
f976f3f6
LP		 187 socket_connection_unref(s->accept_socket);
188 s->accept_socket = NULL;
6cf6bbc2
LP		 189}
190
87f0e418
LP		 191static void service_done(Unit *u) {
192 Service *s = SERVICE(u);
44d8db9e
LP		 193
194 assert(s);
195
196 free(s->pid_file);
197 s->pid_file = NULL;
198
07459bb6 199#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 200 free(s->sysv_path);
201 s->sysv_path = NULL;
202
8309400a
LP		 203 free(s->sysv_runlevels);
204 s->sysv_runlevels = NULL;
07459bb6 205#endif
8309400a 206
8c47c732
LP		 207 free(s->status_text);
208 s->status_text = NULL;
209
44d8db9e 210 exec_context_done(&s->exec_context);
e537352b 211 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 212 s->control_command = NULL;
213
214 /* This will leak a process, but at least no memory or any of
215 * our resources */
5e94833f
LP		 216 service_unwatch_main_pid(s);
217 service_unwatch_control_pid(s);
44d8db9e 218
05e343b7
LP		 219 if (s->bus_name) {
220 unit_unwatch_bus_name(UNIT(u), s->bus_name);
221 free(s->bus_name);
222 s->bus_name = NULL;
223 }
224
4f2d528d 225 service_close_socket_fd(s);
6cf6bbc2 226 service_connection_unref(s);
4f2d528d 227
f976f3f6
LP		 228 set_free(s->configured_sockets);
229
acbb0225 230 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 231}
232
07459bb6 233#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 234static char *sysv_translate_name(const char *name) {
235 char *r;
236
237 if (!(r = new(char, strlen(name) + sizeof(".service"))))
238 return NULL;
239
5b819198
MB		 240#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
241 if (endswith(name, ".sh"))
242 /* Drop Debian-style .sh suffix */
243 strcpy(stpcpy(r, name) - 3, ".service");
244#endif
245#ifdef TARGET_SUSE
b7ccee3c
LP		 246 if (startswith(name, "boot."))
247 /* Drop SuSE-style boot. prefix */
248 strcpy(stpcpy(r, name + 5), ".service");
5b819198 249#endif
65530632 250#ifdef TARGET_FRUGALWARE
5b819198 251 if (startswith(name, "rc."))
65530632
MV		 252 /* Drop Frugalware-style rc. prefix */
253 strcpy(stpcpy(r, name + 3), ".service");
980900c1 254#endif
b7ccee3c
LP		 255 else
256 /* Normal init scripts */
257 strcpy(stpcpy(r, name), ".service");
258
259 return r;
260}
261
ee95669f 262static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 263
a7d3cc26
LP		 264 /* We silently ignore the $ prefix here. According to the LSB
265 * spec it simply indicates whether something is a
266 * standardized name or a distribution-specific one. Since we
267 * just follow what already exists and do not introduce new
268 * uses or names we don't care who introduced a new name. */
269
2c4104f0 270 static const char * const table[] = {
6464aa08 271 /* LSB defined facilities */
a7d3cc26
LP		 272 "local_fs", SPECIAL_LOCAL_FS_TARGET,
273 "network", SPECIAL_NETWORK_TARGET,
274 "named", SPECIAL_NSS_LOOKUP_TARGET,
275 "portmap", SPECIAL_RPCBIND_TARGET,
276 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
277 "syslog", SPECIAL_SYSLOG_TARGET,
278 "time", SPECIAL_RTC_SET_TARGET,
6464aa08 279
0b603b4e
KS		 280 /* common extensions */
281 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
282 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
283 "null", NULL,
284
858dae18 285#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
a7d3cc26 286 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 287#endif
3177a49c
LP		 288
289#ifdef TARGET_FEDORA
a7d3cc26
LP		 290 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
291 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
292 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 293#endif
a7d3cc26 294
0b603b4e
KS		 295#ifdef TARGET_SUSE
296 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
297#endif
2c4104f0
LP		 298 };
299
300 unsigned i;
301 char *r;
ee95669f 302 const char *n;
2c4104f0 303
ee95669f
LP		 304 assert(name);
305 assert(_r);
a7d3cc26 306
ee95669f 307 n = *name == '$' ? name + 1 : name;
a7d3cc26 308
ee95669f 309 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 310
ee95669f
LP		 311 if (!streq(table[i], n))
312 continue;
2c4104f0 313
ee95669f
LP		 314 if (!table[i+1])
315 return 0;
316
317 if (!(r = strdup(table[i+1])))
318 return -ENOMEM;
319
320 goto finish;
321 }
2c4104f0 322
a7d3cc26 323 /* If we don't know this name, fallback heuristics to figure
0003d1ab 324 * out whether something is a target or a service alias. */
a7d3cc26 325
e83c7c0b
LP		 326 if (*name == '$') {
327 if (!unit_prefix_is_valid(n))
328 return -EINVAL;
329
ee95669f
LP		 330 /* Facilities starting with $ are most likely targets */
331 r = unit_name_build(n, NULL, ".target");
e83c7c0b 332 } else if (filename && streq(name, filename))
ee95669f
LP		 333 /* Names equalling the file name of the services are redundant */
334 return 0;
32159d3a 335 else
ee95669f
LP		 336 /* Everything else we assume to be normal service names */
337 r = sysv_translate_name(n);
2c4104f0 338
32159d3a 339 if (!r)
2c4104f0
LP		 340 return -ENOMEM;
341
342finish:
343
344 if (_r)
345 *_r = r;
346
347 return 1;
348}
349
56d748b4 350static int sysv_fix_order(Service *s) {
2c4104f0
LP		 351 Meta *other;
352 int r;
353
354 assert(s);
355
356 if (s->sysv_start_priority < 0)
357 return 0;
358
23a177ef
LP		 359 /* For each pair of services where at least one lacks a LSB
360 * header, we use the start priority value to order things. */
2c4104f0 361
4cd1fbcc 362 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 363 Service *t;
364 UnitDependency d;
eeaafddc 365 bool special_s, special_t;
2c4104f0
LP		 366
367 t = (Service*) other;
368
369 if (s == t)
370 continue;
9f151f29
LP		 371
372 if (t->meta.load_state != UNIT_LOADED)
373 continue;
2c4104f0
LP		 374
375 if (t->sysv_start_priority < 0)
376 continue;
377
51a1a79d
LP		 378 /* If both units have modern headers we don't care
379 * about the priorities */
f21781d5
LP		 380 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
381 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 382 continue;
383
eeaafddc
LP		 384 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
385 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
386
387 if (special_t && !special_s)
388 d = UNIT_AFTER;
389 else if (special_s && !special_t)
390 d = UNIT_BEFORE;
391 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 392 d = UNIT_AFTER;
393 else if (t->sysv_start_priority > s->sysv_start_priority)
394 d = UNIT_BEFORE;
395 else
396 continue;
397
398 /* FIXME: Maybe we should compare the name here lexicographically? */
399
701cc384 400 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 401 return r;
402 }
403
404 return 0;
405}
406
407static ExecCommand *exec_command_new(const char *path, const char *arg1) {
408 ExecCommand *c;
409
410 if (!(c = new0(ExecCommand, 1)))
411 return NULL;
412
413 if (!(c->path = strdup(path))) {
414 free(c);
415 return NULL;
416 }
417
418 if (!(c->argv = strv_new(path, arg1, NULL))) {
419 free(c->path);
420 free(c);
421 return NULL;
422 }
423
424 return c;
425}
426
427static int sysv_exec_commands(Service *s) {
428 ExecCommand *c;
429
430 assert(s);
431 assert(s->sysv_path);
432
433 if (!(c = exec_command_new(s->sysv_path, "start")))
434 return -ENOMEM;
435 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
436
437 if (!(c = exec_command_new(s->sysv_path, "stop")))
438 return -ENOMEM;
439 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
440
441 if (!(c = exec_command_new(s->sysv_path, "reload")))
442 return -ENOMEM;
443 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
444
445 return 0;
446}
447
e537352b 448static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 449 FILE *f;
450 Unit *u;
451 unsigned line = 0;
452 int r;
453 enum {
454 NORMAL,
455 DESCRIPTION,
456 LSB,
457 LSB_DESCRIPTION
458 } state = NORMAL;
0b5d26f9 459 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 460
461 assert(s);
462 assert(path);
2c4104f0
LP		 463
464 u = UNIT(s);
465
466 if (!(f = fopen(path, "re"))) {
467 r = errno == ENOENT ? 0 : -errno;
468 goto finish;
469 }
470
2c4104f0
LP		 471 free(s->sysv_path);
472 if (!(s->sysv_path = strdup(path))) {
473 r = -ENOMEM;
474 goto finish;
475 }
476
477 while (!feof(f)) {
478 char l[LINE_MAX], *t;
479
480 if (!fgets(l, sizeof(l), f)) {
481 if (feof(f))
482 break;
483
484 r = -errno;
485 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
486 goto finish;
487 }
488
489 line++;
490
491 t = strstrip(l);
492 if (*t != '#')
493 continue;
494
495 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
496 state = LSB;
23a177ef 497 s->sysv_has_lsb = true;
2c4104f0
LP		 498 continue;
499 }
500
501 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
502 state = NORMAL;
503 continue;
504 }
505
506 t++;
507 t += strspn(t, WHITESPACE);
508
509 if (state == NORMAL) {
510
511 /* Try to parse Red Hat style chkconfig headers */
512
c2b35af6 513 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 514 int start_priority;
8309400a 515 char runlevels[16], *k;
2c4104f0
LP		 516
517 state = NORMAL;
518
8309400a
LP		 519 if (sscanf(t+10, "%15s %i %*i",
520 runlevels,
521 &start_priority) != 2) {
2c4104f0
LP		 522
523 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
524 continue;
525 }
526
fbe9f3a9
LP		 527 /* A start priority gathered from the
528 * symlink farms is preferred over the
529 * data from the LSB header. */
8309400a 530 if (start_priority < 0 || start_priority > 99)
2c4104f0 531 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 532 else if (s->sysv_start_priority < 0)
8309400a
LP		 533 s->sysv_start_priority = start_priority;
534
535 char_array_0(runlevels);
536 k = delete_chars(runlevels, WHITESPACE "-");
537
538 if (k[0]) {
539 char *d;
540
541 if (!(d = strdup(k))) {
542 r = -ENOMEM;
543 goto finish;
544 }
545
546 free(s->sysv_runlevels);
547 s->sysv_runlevels = d;
2c4104f0
LP		 548 }
549
0b5d26f9 550 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 551
552 size_t k = strlen(t);
553 char *d;
0b5d26f9 554 const char *j;
2c4104f0
LP		 555
556 if (t[k-1] == '\\') {
557 state = DESCRIPTION;
558 t[k-1] = 0;
559 }
560
0b5d26f9
LP		 561 if ((j = strstrip(t+12)) && *j) {
562 if (!(d = strdup(j))) {
563 r = -ENOMEM;
564 goto finish;
565 }
566 } else
567 d = NULL;
2c4104f0 568
0b5d26f9
LP		 569 free(chkconfig_description);
570 chkconfig_description = d;
2c4104f0 571
c2b35af6 572 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 573
574 char *fn;
575
576 state = NORMAL;
577
578 fn = strstrip(t+8);
579 if (!path_is_absolute(fn)) {
580 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
581 continue;
582 }
583
584 if (!(fn = strdup(fn))) {
585 r = -ENOMEM;
586 goto finish;
587 }
588
589 free(s->pid_file);
590 s->pid_file = fn;
591 }
592
593 } else if (state == DESCRIPTION) {
594
595 /* Try to parse Red Hat style description
596 * continuation */
597
598 size_t k = strlen(t);
0b5d26f9 599 char *j;
2c4104f0
LP		 600
601 if (t[k-1] == '\\')
602 t[k-1] = 0;
603 else
604 state = NORMAL;
605
0b5d26f9
LP		 606 if ((j = strstrip(t)) && *j) {
607 char *d = NULL;
608
609 if (chkconfig_description)
610 asprintf(&d, "%s %s", chkconfig_description, j);
611 else
612 d = strdup(j);
2c4104f0 613
0b5d26f9
LP		 614 if (!d) {
615 r = -ENOMEM;
616 goto finish;
617 }
618
619 free(chkconfig_description);
620 chkconfig_description = d;
621 }
2c4104f0
LP		 622
623 } else if (state == LSB || state == LSB_DESCRIPTION) {
624
c2b35af6 625 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 626 char *i, *w;
627 size_t z;
628
629 state = LSB;
630
f60f22df 631 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 632 char *n, *m;
633
634 if (!(n = strndup(w, z))) {
635 r = -ENOMEM;
636 goto finish;
637 }
638
ee95669f 639 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 640 free(n);
641
642 if (r < 0)
643 goto finish;
644
645 if (r == 0)
646 continue;
647
bd77d0fc
LP		 648 if (unit_name_to_type(m) == UNIT_SERVICE)
649 r = unit_add_name(u, m);
c68364b7
LP		 650 else {
651 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
652
653 if (s->sysv_enabled) {
654 int k;
655
656 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
657 r = k;
658 }
659 }
bd77d0fc 660
2c4104f0 661 if (r < 0)
43a37549 662 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 663
664 free(m);
2c4104f0
LP		 665 }
666
c2b35af6
LP		 667 } else if (startswith_no_case(t, "Required-Start:") ||
668 startswith_no_case(t, "Should-Start:") ||
669 startswith_no_case(t, "X-Start-Before:") ||
670 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 671 char *i, *w;
672 size_t z;
673
674 state = LSB;
675
f60f22df 676 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 677 char *n, *m;
678
679 if (!(n = strndup(w, z))) {
680 r = -ENOMEM;
681 goto finish;
682 }
683
ee95669f 684 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 685
e83c7c0b
LP		 686 if (r < 0) {
687 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
688 free(n);
689 continue;
690 }
691
692 free(n);
2c4104f0
LP		 693
694 if (r == 0)
695 continue;
696
c2b35af6 697 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 698
699 if (r < 0)
43a37549 700 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 701
702 free(m);
2c4104f0 703 }
c2b35af6 704 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 705 char *k, *d;
706
707 state = LSB;
708
709 k = delete_chars(t+14, WHITESPACE "-");
710
711 if (k[0] != 0) {
712 if (!(d = strdup(k))) {
713 r = -ENOMEM;
714 goto finish;
715 }
716
717 free(s->sysv_runlevels);
718 s->sysv_runlevels = d;
719 }
2c4104f0 720
0b5d26f9
LP		 721 } else if (startswith_no_case(t, "Description:")) {
722 char *d, *j;
ed4c1cc6 723
2c4104f0
LP		 724 state = LSB_DESCRIPTION;
725
0b5d26f9
LP		 726 if ((j = strstrip(t+12)) && *j) {
727 if (!(d = strdup(j))) {
728 r = -ENOMEM;
729 goto finish;
730 }
731 } else
732 d = NULL;
2c4104f0 733
0b5d26f9
LP		 734 free(long_description);
735 long_description = d;
2c4104f0 736
ed4c1cc6 737 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 738 char *d, *j;
2c4104f0 739
2c4104f0
LP		 740 state = LSB;
741
0b5d26f9
LP		 742 if ((j = strstrip(t+18)) && *j) {
743 if (!(d = strdup(j))) {
744 r = -ENOMEM;
745 goto finish;
746 }
747 } else
748 d = NULL;
2c4104f0 749
0b5d26f9
LP		 750 free(short_description);
751 short_description = d;
2c4104f0 752
723c83fd
LP		 753 } else if (startswith_no_case(t, "X-Interactive:")) {
754 int b;
755
756 if ((b = parse_boolean(strstrip(t+14))) < 0) {
757 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
758 continue;
759 }
760
761 if (b)
762 s->exec_context.std_input = EXEC_INPUT_TTY;
763 else
764 s->exec_context.std_input = EXEC_INPUT_NULL;
765
2c4104f0
LP		 766 } else if (state == LSB_DESCRIPTION) {
767
768 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 769 char *j;
2c4104f0 770
0b5d26f9
LP		 771 if ((j = strstrip(t)) && *j) {
772 char *d = NULL;
773
774 if (long_description)
775 asprintf(&d, "%s %s", long_description, t);
776 else
777 d = strdup(j);
778
779 if (!d) {
780 r = -ENOMEM;
781 goto finish;
782 }
783
784 free(long_description);
785 long_description = d;
2c4104f0
LP		 786 }
787
2c4104f0
LP		 788 } else
789 state = LSB;
790 }
791 }
792 }
793
2c4104f0
LP		 794 if ((r = sysv_exec_commands(s)) < 0)
795 goto finish;
796
a40eb732 797 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 798 /* If there a runlevels configured for this service
799 * but none of the standard ones, then we assume this
800 * is some special kind of service (which might be
801 * needed for early boot) and don't create any links
802 * to it. */
803
a40eb732 804 s->meta.default_dependencies = false;
09cd1ab1 805
09cd1ab1
LP		 806 /* Don't timeout special services during boot (like fsck) */
807 s->timeout_usec = 0;
f34277d9
LP		 808 } else
809 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 810
80876c20 811 /* Special setting for all SysV services */
1f48cf56 812 s->type = SERVICE_FORKING;
02ee865a 813 s->remain_after_exit = true;
525ee6f4 814 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 815 s->exec_context.std_output =
816 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
817 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
2e22afe9 818 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 819
0b5d26f9
LP		 820 /* We use the long description only if
821 * no short description is set. */
822
823 if (short_description)
824 description = short_description;
825 else if (chkconfig_description)
826 description = chkconfig_description;
827 else if (long_description)
828 description = long_description;
829 else
830 description = NULL;
831
832 if (description) {
833 char *d;
834
835 if (!(d = strappend("LSB: ", description))) {
836 r = -ENOMEM;
837 goto finish;
838 }
839
840 u->meta.description = d;
841 }
842
e537352b 843 u->meta.load_state = UNIT_LOADED;
23a177ef 844 r = 0;
2c4104f0
LP		 845
846finish:
847
848 if (f)
849 fclose(f);
850
0b5d26f9
LP		 851 free(short_description);
852 free(long_description);
853 free(chkconfig_description);
854
2c4104f0
LP		 855 return r;
856}
857
e537352b 858static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 859 char **p;
860
861 assert(s);
862 assert(name);
863
e1992852 864 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 865 * prefixes/suffixes. */
5b819198
MB		 866#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
867 if (endswith(name, ".sh.service"))
d017c6ca 868 return -ENOENT;
5b819198
MB		 869#endif
870
871#ifdef TARGET_SUSE
872 if (startswith(name, "boot."))
873 return -ENOENT;
874#endif
875
876#ifdef TARGET_FRUGALWARE
877 if (startswith(name, "rc."))
878 return -ENOENT;
879#endif
d017c6ca 880
4cd1fbcc 881 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 882 char *path;
883 int r;
884
885 if (asprintf(&path, "%s/%s", *p, name) < 0)
886 return -ENOMEM;
887
888 assert(endswith(path, ".service"));
889 path[strlen(path)-8] = 0;
890
e537352b 891 r = service_load_sysv_path(s, path);
fbe9f3a9 892
e1992852 893#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
4cd1fbcc 894 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 895 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 896 strcat(path, ".sh");
897 r = service_load_sysv_path(s, path);
898 }
e1992852 899#endif
2c4104f0
LP		 900 free(path);
901
e1992852 902#ifdef TARGET_SUSE
4cd1fbcc 903 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 904 /* Try SUSE style boot.* init scripts */
fbe9f3a9
LP		 905
906 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
907 return -ENOMEM;
908
e1992852 909 /* Drop .service suffix */
fbe9f3a9
LP		 910 path[strlen(path)-8] = 0;
911 r = service_load_sysv_path(s, path);
912 free(path);
913 }
e1992852 914#endif
fbe9f3a9 915
e1992852 916#ifdef TARGET_FRUGALWARE
65530632 917 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 918 /* Try Frugalware style rc.* init scripts */
65530632
MV		 919
920 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
921 return -ENOMEM;
922
e1992852 923 /* Drop .service suffix */
65530632
MV		 924 path[strlen(path)-8] = 0;
925 r = service_load_sysv_path(s, path);
926 free(path);
927 }
e1992852 928#endif
65530632 929
23a177ef 930 if (r < 0)
2c4104f0 931 return r;
23a177ef 932
4cd1fbcc 933 if ((s->meta.load_state != UNIT_STUB))
23a177ef 934 break;
2c4104f0
LP		 935 }
936
937 return 0;
938}
939
e537352b 940static int service_load_sysv(Service *s) {
2c4104f0
LP		 941 const char *t;
942 Iterator i;
943 int r;
944
5cb5a6ff
LP		 945 assert(s);
946
947 /* Load service data from SysV init scripts, preferably with
948 * LSB headers ... */
949
4cd1fbcc 950 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 951 return 0;
952
4cd1fbcc 953 if ((t = s->meta.id))
e537352b 954 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 955 return r;
956
4cd1fbcc
LP		 957 if (s->meta.load_state == UNIT_STUB)
958 SET_FOREACH(t, s->meta.names, i) {
959 if (t == s->meta.id)
e537352b
LP		 960 continue;
961
e364ad06 962 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 963 return r;
964
4cd1fbcc 965 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 966 break;
967 }
2c4104f0
LP		 968
969 return 0;
5cb5a6ff 970}
07459bb6 971#endif
5cb5a6ff 972
9fff8a1f
LP		 973static int fsck_fix_order(Service *s) {
974 Meta *other;
975 int r;
976
977 assert(s);
978
979 if (s->fsck_passno <= 0)
980 return 0;
981
982 /* For each pair of services where both have an fsck priority
983 * we order things based on it. */
984
985 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
986 Service *t;
987 UnitDependency d;
988
989 t = (Service*) other;
990
991 if (s == t)
992 continue;
993
994 if (t->meta.load_state != UNIT_LOADED)
995 continue;
996
997 if (t->fsck_passno <= 0)
998 continue;
999
1000 if (t->fsck_passno < s->fsck_passno)
1001 d = UNIT_AFTER;
1002 else if (t->fsck_passno > s->fsck_passno)
1003 d = UNIT_BEFORE;
1004 else
1005 continue;
1006
1007 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1008 return r;
1009 }
1010
1011 return 0;
1012}
1013
243b1432
LP		 1014static int service_verify(Service *s) {
1015 assert(s);
1016
4cd1fbcc 1017 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1018 return 0;
1019
1020 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1021 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1022 return -EINVAL;
1023 }
1024
34e9ba66
LP		 1025 if (s->type != SERVICE_ONESHOT &&
1026 s->exec_command[SERVICE_EXEC_START]->command_next) {
1027 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1028 return -EINVAL;
1029 }
1030
05e343b7 1031 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1032 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1033 return -EINVAL;
1034 }
1035
2e22afe9 1036 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1037 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1038 return -EINVAL;
1039 }
1040
243b1432
LP		 1041 return 0;
1042}
1043
a40eb732
LP		 1044static int service_add_default_dependencies(Service *s) {
1045 int r;
1046
1047 assert(s);
1048
1049 /* Add a number of automatic dependencies useful for the
1050 * majority of services. */
1051
1052 /* First, pull in base system */
1053 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1054
1055 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1056 return r;
1057
af2d49f7 1058 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1059
1060 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1061 return r;
1062 }
1063
1064 /* Second, activate normal shutdown */
ead8e478 1065 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1066}
1067
e537352b
LP		 1068static int service_load(Unit *u) {
1069 int r;
1070 Service *s = SERVICE(u);
1071
1072 assert(s);
1e2e8133 1073
5cb5a6ff 1074 /* Load a .service file */
e537352b 1075 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1076 return r;
1077
07459bb6 1078#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1079 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1080 if (u->meta.load_state == UNIT_STUB)
1081 if ((r = service_load_sysv(s)) < 0)
23a177ef 1082 return r;
07459bb6 1083#endif
d46de8a1 1084
23a177ef 1085 /* Still nothing found? Then let's give up */
e537352b 1086 if (u->meta.load_state == UNIT_STUB)
23a177ef 1087 return -ENOENT;
034c6ed7 1088
23a177ef
LP		 1089 /* We were able to load something, then let's add in the
1090 * dropin directories. */
1091 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1092 return r;
23a177ef
LP		 1093
1094 /* This is a new unit? Then let's add in some extras */
e537352b 1095 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1096 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1097 return r;
1098
d686d8a9 1099 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1100 return r;
1101
07459bb6 1102#ifdef HAVE_SYSV_COMPAT
56d748b4 1103 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1104 return r;
07459bb6 1105#endif
05e343b7 1106
9fff8a1f
LP		 1107 if ((r = fsck_fix_order(s)) < 0)
1108 return r;
1109
ee0dd802 1110 if (s->bus_name)
05e343b7 1111 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1112 return r;
c952c6ec
LP		 1113
1114 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1115 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1116
1117 if (s->type == SERVICE_DBUS || s->bus_name)
1118 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1119 return r;
1120
1121 if (s->meta.default_dependencies)
1122 if ((r = service_add_default_dependencies(s)) < 0)
1123 return r;
8e274523
LP		 1124 }
1125
243b1432 1126 return service_verify(s);
034c6ed7
LP		 1127}
1128
87f0e418 1129static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1130
5cb5a6ff 1131 ServiceExecCommand c;
87f0e418 1132 Service *s = SERVICE(u);
47be870b
LP		 1133 const char *prefix2;
1134 char *p2;
5cb5a6ff
LP		 1135
1136 assert(s);
1137
47be870b
LP		 1138 p2 = strappend(prefix, "\t");
1139 prefix2 = p2 ? p2 : prefix;
44d8db9e 1140
5cb5a6ff 1141 fprintf(f,
81a2b7ce
LP		 1142 "%sService State: %s\n"
1143 "%sPermissionsStartOnly: %s\n"
8e274523 1144 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1145 "%sRemainAfterExit: %s\n"
c952c6ec 1146 "%sType: %s\n"
2cf3143a 1147 "%sRestart: %s\n"
c952c6ec 1148 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1149 prefix, service_state_to_string(s->state),
1150 prefix, yes_no(s->permissions_start_only),
8e274523 1151 prefix, yes_no(s->root_directory_start_only),
02ee865a 1152 prefix, yes_no(s->remain_after_exit),
c952c6ec 1153 prefix, service_type_to_string(s->type),
2cf3143a 1154 prefix, service_restart_to_string(s->restart),
c952c6ec 1155 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1156
70123e68
LP		 1157 if (s->control_pid > 0)
1158 fprintf(f,
bb00e604
LP		 1159 "%sControl PID: %lu\n",
1160 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1161
1162 if (s->main_pid > 0)
1163 fprintf(f,
bb00e604
LP		 1164 "%sMain PID: %lu\n",
1165 prefix, (unsigned long) s->main_pid);
70123e68 1166
034c6ed7
LP		 1167 if (s->pid_file)
1168 fprintf(f,
1169 "%sPIDFile: %s\n",
1170 prefix, s->pid_file);
1171
05e343b7
LP		 1172 if (s->bus_name)
1173 fprintf(f,
1174 "%sBusName: %s\n"
1175 "%sBus Name Good: %s\n",
1176 prefix, s->bus_name,
1177 prefix, yes_no(s->bus_name_good));
1178
5cb5a6ff
LP		 1179 exec_context_dump(&s->exec_context, f, prefix);
1180
e537352b 1181 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1182
44d8db9e
LP		 1183 if (!s->exec_command[c])
1184 continue;
1185
40d50879 1186 fprintf(f, "%s-> %s:\n",
94f04347 1187 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1188
1189 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1190 }
44d8db9e 1191
07459bb6 1192#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1193 if (s->sysv_path)
1194 fprintf(f,
23a177ef 1195 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1196 "%sSysV Init Script has LSB Header: %s\n"
1197 "%sSysVEnabled: %s\n",
23a177ef 1198 prefix, s->sysv_path,
9fff8a1f
LP		 1199 prefix, yes_no(s->sysv_has_lsb),
1200 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1201
1202 if (s->sysv_start_priority >= 0)
1203 fprintf(f,
9fff8a1f
LP		 1204 "%sSysVStartPriority: %i\n",
1205 prefix, s->sysv_start_priority);
2c4104f0 1206
8309400a
LP		 1207 if (s->sysv_runlevels)
1208 fprintf(f, "%sSysVRunLevels: %s\n",
1209 prefix, s->sysv_runlevels);
07459bb6 1210#endif
23a177ef 1211
9fff8a1f
LP		 1212 if (s->fsck_passno > 0)
1213 fprintf(f,
1214 "%sFsckPassNo: %i\n",
1215 prefix, s->fsck_passno);
1216
8c47c732
LP		 1217 if (s->status_text)
1218 fprintf(f, "%sStatus Text: %s\n",
1219 prefix, s->status_text);
1220
47be870b 1221 free(p2);
5cb5a6ff
LP		 1222}
1223
034c6ed7
LP		 1224static int service_load_pid_file(Service *s) {
1225 char *k;
034c6ed7 1226 int r;
5925dd3c 1227 pid_t pid;
034c6ed7
LP		 1228
1229 assert(s);
1230
1231 if (s->main_pid_known)
1232 return 0;
1233
5e94833f
LP		 1234 assert(s->main_pid <= 0);
1235
034c6ed7
LP		 1236 if (!s->pid_file)
1237 return -ENOENT;
1238
1239 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1240 return r;
1241
5925dd3c
LP		 1242 r = parse_pid(k, &pid);
1243 free(k);
034c6ed7 1244
5925dd3c
LP		 1245 if (r < 0)
1246 return r;
406eaf93 1247
5925dd3c
LP		 1248 if (kill(pid, 0) < 0 && errno != EPERM) {
1249 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1250 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1251 return -ESRCH;
1252 }
1253
5925dd3c 1254 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1255 return r;
1256
5925dd3c
LP		 1257 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1258 /* FIXME: we need to do something here */
1259 return r;
034c6ed7
LP		 1260
1261 return 0;
1262}
1263
4fbf50b3
LP		 1264static int service_search_main_pid(Service *s) {
1265 pid_t pid;
1266 int r;
1267
1268 assert(s);
1269
1270 if (s->main_pid_known)
1271 return 0;
1272
1273 assert(s->main_pid <= 0);
1274
1275 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1276 return -ENOENT;
1277
1278 if ((r = service_set_main_pid(s, pid)) < 0)
1279 return r;
1280
1281 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1282 /* FIXME: we need to do something here */
1283 return r;
1284
1285 return 0;
1286}
1287
3e33402a
LP		 1288static int service_get_sockets(Service *s, Set **_set) {
1289 Set *set;
ceee3d82
LP		 1290 Iterator i;
1291 char *t;
3e33402a 1292 int r;
ceee3d82
LP		 1293
1294 assert(s);
3e33402a
LP		 1295 assert(_set);
1296
6cf6bbc2
LP		 1297 if (s->socket_fd >= 0)
1298 return 0;
1299
f976f3f6
LP		 1300 if (!set_isempty(s->configured_sockets))
1301 return 0;
1302
3e33402a
LP		 1303 /* Collects all Socket objects that belong to this
1304 * service. Note that a service might have multiple sockets
1305 * via multiple names. */
1306
1307 if (!(set = set_new(NULL, NULL)))
1308 return -ENOMEM;
ceee3d82 1309
4cd1fbcc 1310 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1311 char *k;
1312 Unit *p;
1313
1314 /* Look for all socket objects that go by any of our
1315 * units and collect their fds */
1316
3e33402a
LP		 1317 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1318 r = -ENOMEM;
1319 goto fail;
1320 }
ceee3d82 1321
4cd1fbcc 1322 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1323 free(k);
1324
8d567588
LP		 1325 if (!p)
1326 continue;
ceee3d82 1327
3e33402a
LP		 1328 if ((r = set_put(set, p)) < 0)
1329 goto fail;
ceee3d82
LP		 1330 }
1331
3e33402a
LP		 1332 *_set = set;
1333 return 0;
1334
1335fail:
1336 set_free(set);
1337 return r;
1338}
1339
e537352b 1340static int service_notify_sockets_dead(Service *s) {
3e33402a 1341 Iterator i;
f976f3f6 1342 Set *set, *free_set = NULL;
47be870b 1343 Socket *sock;
3e33402a
LP		 1344 int r;
1345
1346 assert(s);
1347
f976f3f6
LP		 1348 /* Notifies all our sockets when we die */
1349
6cf6bbc2
LP		 1350 if (s->socket_fd >= 0)
1351 return 0;
1352
f976f3f6
LP		 1353 if (!set_isempty(s->configured_sockets))
1354 set = s->configured_sockets;
1355 else {
1356 if ((r = service_get_sockets(s, &free_set)) < 0)
1357 return r;
1358
1359 set = free_set;
1360 }
3e33402a 1361
47be870b
LP		 1362 SET_FOREACH(sock, set, i)
1363 socket_notify_service_dead(sock);
3e33402a 1364
f976f3f6 1365 set_free(free_set);
3e33402a 1366
ceee3d82
LP		 1367 return 0;
1368}
1369
034c6ed7
LP		 1370static void service_set_state(Service *s, ServiceState state) {
1371 ServiceState old_state;
5cb5a6ff
LP		 1372 assert(s);
1373
034c6ed7 1374 old_state = s->state;
5cb5a6ff 1375 s->state = state;
034c6ed7
LP		 1376
1377 if (state != SERVICE_START_PRE &&
1378 state != SERVICE_START &&
1379 state != SERVICE_START_POST &&
1380 state != SERVICE_RELOAD &&
1381 state != SERVICE_STOP &&
1382 state != SERVICE_STOP_SIGTERM &&
1383 state != SERVICE_STOP_SIGKILL &&
1384 state != SERVICE_STOP_POST &&
1385 state != SERVICE_FINAL_SIGTERM &&
1386 state != SERVICE_FINAL_SIGKILL &&
1387 state != SERVICE_AUTO_RESTART)
acbb0225 1388 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1389
7d55e835
LP		 1390 if (state != SERVICE_START &&
1391 state != SERVICE_START_POST &&
034c6ed7
LP		 1392 state != SERVICE_RUNNING &&
1393 state != SERVICE_RELOAD &&
1394 state != SERVICE_STOP &&
1395 state != SERVICE_STOP_SIGTERM &&
1396 state != SERVICE_STOP_SIGKILL)
5e94833f 1397 service_unwatch_main_pid(s);
034c6ed7
LP		 1398
1399 if (state != SERVICE_START_PRE &&
1400 state != SERVICE_START &&
1401 state != SERVICE_START_POST &&
1402 state != SERVICE_RELOAD &&
1403 state != SERVICE_STOP &&
1404 state != SERVICE_STOP_SIGTERM &&
1405 state != SERVICE_STOP_SIGKILL &&
1406 state != SERVICE_STOP_POST &&
1407 state != SERVICE_FINAL_SIGTERM &&
e537352b 1408 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1409 service_unwatch_control_pid(s);
034c6ed7 1410 s->control_command = NULL;
a16e1123 1411 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1412 }
034c6ed7 1413
ceee3d82
LP		 1414 if (state == SERVICE_DEAD ||
1415 state == SERVICE_STOP ||
1416 state == SERVICE_STOP_SIGTERM ||
1417 state == SERVICE_STOP_SIGKILL ||
1418 state == SERVICE_STOP_POST ||
1419 state == SERVICE_FINAL_SIGTERM ||
1420 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1421 state == SERVICE_FAILED ||
ceee3d82 1422 state == SERVICE_AUTO_RESTART)
e537352b 1423 service_notify_sockets_dead(s);
ceee3d82 1424
4f2d528d
LP		 1425 if (state != SERVICE_START_PRE &&
1426 state != SERVICE_START &&
6cf6bbc2
LP		 1427 state != SERVICE_START_POST &&
1428 state != SERVICE_RUNNING &&
1429 state != SERVICE_RELOAD &&
1430 state != SERVICE_STOP &&
1431 state != SERVICE_STOP_SIGTERM &&
1432 state != SERVICE_STOP_SIGKILL &&
1433 state != SERVICE_STOP_POST &&
1434 state != SERVICE_FINAL_SIGTERM &&
1435 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1436 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1437 service_close_socket_fd(s);
6cf6bbc2
LP		 1438 service_connection_unref(s);
1439 }
4f2d528d 1440
f6023656
LP		 1441 /* For the inactive states unit_notify() will trim the cgroup,
1442 * but for exit we have to do that ourselves... */
1443 if (state == SERVICE_EXITED)
1444 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1445
e537352b 1446 if (old_state != state)
4cd1fbcc 1447 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1448
1449 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1450}
1451
a16e1123
LP		 1452static int service_coldplug(Unit *u) {
1453 Service *s = SERVICE(u);
1454 int r;
1455
1456 assert(s);
1457 assert(s->state == SERVICE_DEAD);
1458
1459 if (s->deserialized_state != s->state) {
1460
1461 if (s->deserialized_state == SERVICE_START_PRE ||
1462 s->deserialized_state == SERVICE_START ||
1463 s->deserialized_state == SERVICE_START_POST ||
1464 s->deserialized_state == SERVICE_RELOAD ||
1465 s->deserialized_state == SERVICE_STOP ||
1466 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1467 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1468 s->deserialized_state == SERVICE_STOP_POST ||
1469 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1470 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1471 s->deserialized_state == SERVICE_AUTO_RESTART) {
1472
1473 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1474 usec_t k;
1475
1476 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1477
1478 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1479 return r;
1480 }
1481 }
a16e1123
LP		 1482
1483 if ((s->deserialized_state == SERVICE_START &&
1484 (s->type == SERVICE_FORKING ||
8c47c732 1485 s->type == SERVICE_DBUS ||
34e9ba66 1486 s->type == SERVICE_ONESHOT ||
8c47c732 1487 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1488 s->deserialized_state == SERVICE_START_POST ||
1489 s->deserialized_state == SERVICE_RUNNING ||
1490 s->deserialized_state == SERVICE_RELOAD ||
1491 s->deserialized_state == SERVICE_STOP ||
1492 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1493 s->deserialized_state == SERVICE_STOP_SIGKILL)
1494 if (s->main_pid > 0)
1495 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1496 return r;
1497
1498 if (s->deserialized_state == SERVICE_START_PRE ||
1499 s->deserialized_state == SERVICE_START ||
1500 s->deserialized_state == SERVICE_START_POST ||
1501 s->deserialized_state == SERVICE_RELOAD ||
1502 s->deserialized_state == SERVICE_STOP ||
1503 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1504 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1505 s->deserialized_state == SERVICE_STOP_POST ||
1506 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1507 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1508 if (s->control_pid > 0)
1509 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1510 return r;
1511
1512 service_set_state(s, s->deserialized_state);
1513 }
1514
1515 return 0;
1516}
1517
44d8db9e
LP		 1518static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1519 Iterator i;
1520 int r;
1521 int *rfds = NULL;
1522 unsigned rn_fds = 0;
f976f3f6 1523 Set *set, *free_set = NULL;
47be870b 1524 Socket *sock;
44d8db9e
LP		 1525
1526 assert(s);
1527 assert(fds);
1528 assert(n_fds);
1529
6cf6bbc2
LP		 1530 if (s->socket_fd >= 0)
1531 return 0;
1532
f976f3f6
LP		 1533 if (!set_isempty(s->configured_sockets))
1534 set = s->configured_sockets;
1535 else {
1536 if ((r = service_get_sockets(s, &free_set)) < 0)
1537 return r;
1538
1539 set = free_set;
1540 }
3e33402a 1541
47be870b 1542 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1543 int *cfds;
1544 unsigned cn_fds;
1545
47be870b 1546 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1547 goto fail;
1548
1549 if (!cfds)
1550 continue;
1551
1552 if (!rfds) {
1553 rfds = cfds;
1554 rn_fds = cn_fds;
1555 } else {
1556 int *t;
1557
1558 if (!(t = new(int, rn_fds+cn_fds))) {
1559 free(cfds);
1560 r = -ENOMEM;
1561 goto fail;
1562 }
1563
1564 memcpy(t, rfds, rn_fds);
1565 memcpy(t+rn_fds, cfds, cn_fds);
1566 free(rfds);
1567 free(cfds);
1568
1569 rfds = t;
1570 rn_fds = rn_fds+cn_fds;
1571 }
1572 }
1573
1574 *fds = rfds;
1575 *n_fds = rn_fds;
3e33402a 1576
f976f3f6 1577 set_free(free_set);
3e33402a 1578
44d8db9e
LP		 1579 return 0;
1580
1581fail:
3e33402a 1582 set_free(set);
44d8db9e 1583 free(rfds);
3e33402a 1584
44d8db9e
LP		 1585 return r;
1586}
1587
81a2b7ce
LP		 1588static int service_spawn(
1589 Service *s,
1590 ExecCommand *c,
1591 bool timeout,
1592 bool pass_fds,
1593 bool apply_permissions,
1594 bool apply_chroot,
1e3ad081 1595 bool apply_tty_stdin,
c952c6ec 1596 bool set_notify_socket,
81a2b7ce
LP		 1597 pid_t *_pid) {
1598
034c6ed7
LP		 1599 pid_t pid;
1600 int r;
6cf6bbc2 1601 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1602 unsigned n_fds = 0, n_env = 0;
1603 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1604
1605 assert(s);
1606 assert(c);
1607 assert(_pid);
1608
6cf6bbc2
LP		 1609 if (pass_fds ||
1610 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1611 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1612 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1613
4f2d528d
LP		 1614 if (s->socket_fd >= 0) {
1615 fds = &s->socket_fd;
1616 n_fds = 1;
6cf6bbc2
LP		 1617 } else {
1618 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1619 goto fail;
1620
1621 fds = fdsbuf;
1622 }
4f2d528d 1623 }
44d8db9e 1624
e558336f 1625 if (timeout && s->timeout_usec) {
acbb0225 1626 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1627 goto fail;
1628 } else
acbb0225 1629 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1630
9e2f7c11
LP		 1631 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1632 r = -ENOMEM;
1633 goto fail;
1634 }
1635
9865f3b4 1636 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1637 r = -ENOMEM;
1638 goto fail;
1639 }
c952c6ec 1640
2105e76a
LP		 1641 if (set_notify_socket)
1642 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1643 r = -ENOMEM;
1644 goto fail;
1645 }
1646
2105e76a
LP		 1647 if (s->main_pid > 0)
1648 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1649 r = -ENOMEM;
1650 goto fail;
1651 }
2105e76a
LP		 1652
1653 if (!(final_env = strv_env_merge(2,
1654 s->meta.manager->environment,
1655 our_env,
1656 NULL))) {
1657 r = -ENOMEM;
1658 goto fail;
1659 }
c952c6ec 1660
9e2f7c11
LP		 1661 r = exec_spawn(c,
1662 argv,
1663 &s->exec_context,
1664 fds, n_fds,
2105e76a 1665 final_env,
9e2f7c11
LP		 1666 apply_permissions,
1667 apply_chroot,
1e3ad081 1668 apply_tty_stdin,
4cd1fbcc
LP		 1669 s->meta.manager->confirm_spawn,
1670 s->meta.cgroup_bondings,
9e2f7c11
LP		 1671 &pid);
1672
9e2f7c11 1673 if (r < 0)
034c6ed7
LP		 1674 goto fail;
1675
4f2d528d 1676
87f0e418 1677 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1678 /* FIXME: we need to do something here */
1679 goto fail;
1680
2105e76a
LP		 1681 free(fdsbuf);
1682 strv_free(argv);
1683 strv_free(our_env);
1684 strv_free(final_env);
1685
034c6ed7
LP		 1686 *_pid = pid;
1687
5cb5a6ff 1688 return 0;
034c6ed7
LP		 1689
1690fail:
2105e76a 1691 free(fdsbuf);
c952c6ec 1692 strv_free(argv);
2105e76a
LP		 1693 strv_free(our_env);
1694 strv_free(final_env);
c952c6ec 1695
034c6ed7 1696 if (timeout)
acbb0225 1697 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1698
1699 return r;
1700}
1701
80876c20
LP		 1702static int main_pid_good(Service *s) {
1703 assert(s);
1704
1705 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1706 * don't know */
1707
1708 /* If we know the pid file, then lets just check if it is
1709 * still valid */
1710 if (s->main_pid_known)
1711 return s->main_pid > 0;
1712
1713 /* We don't know the pid */
1714 return -EAGAIN;
1715}
1716
1717static int control_pid_good(Service *s) {
1718 assert(s);
1719
1720 return s->control_pid > 0;
1721}
1722
1723static int cgroup_good(Service *s) {
1724 int r;
1725
1726 assert(s);
1727
4cd1fbcc 1728 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1729 return r;
1730
1731 return !r;
1732}
1733
034c6ed7
LP		 1734static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1735 int r;
1736 assert(s);
1737
1738 if (!success)
1739 s->failure = true;
1740
1741 if (allow_restart &&
47342320 1742 !s->forbid_restart &&
034c6ed7 1743 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1744 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1745 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1746 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1747 (s->main_exec_status.code == CLD_KILLED ||
1748 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1749
acbb0225 1750 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1751 goto fail;
1752
1753 service_set_state(s, SERVICE_AUTO_RESTART);
1754 } else
fdf20a31 1755 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1756
47342320
LP		 1757 s->forbid_restart = false;
1758
034c6ed7
LP		 1759 return;
1760
1761fail:
4cd1fbcc 1762 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1763 service_enter_dead(s, false, false);
1764}
1765
1766static void service_enter_signal(Service *s, ServiceState state, bool success);
1767
1768static void service_enter_stop_post(Service *s, bool success) {
1769 int r;
1770 assert(s);
1771
1772 if (!success)
1773 s->failure = true;
1774
5e94833f
LP		 1775 service_unwatch_control_pid(s);
1776
a16e1123 1777 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1778 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1779 if ((r = service_spawn(s,
1780 s->control_command,
1781 true,
1782 false,
1783 !s->permissions_start_only,
1784 !s->root_directory_start_only,
1e3ad081 1785 true,
c952c6ec 1786 false,
81a2b7ce 1787 &s->control_pid)) < 0)
034c6ed7
LP		 1788 goto fail;
1789
d6ea93e3 1790
80876c20
LP		 1791 service_set_state(s, SERVICE_STOP_POST);
1792 } else
1793 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1794
1795 return;
1796
1797fail:
4cd1fbcc 1798 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1799 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1800}
1801
1802static void service_enter_signal(Service *s, ServiceState state, bool success) {
1803 int r;
ca949c9d
LP		 1804 Set *pid_set = NULL;
1805 bool wait_for_exit = false;
034c6ed7
LP		 1806
1807 assert(s);
1808
1809 if (!success)
1810 s->failure = true;
1811
2e22afe9
LP		 1812 if (s->exec_context.kill_mode != KILL_NONE) {
1813 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1814
ca949c9d
LP		 1815 if (s->main_pid > 0) {
1816 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1817 -s->main_pid :
1818 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1819
ca949c9d
LP		 1820 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1821 else
1822 wait_for_exit = true;
034c6ed7
LP		 1823 }
1824
ca949c9d
LP		 1825 if (s->control_pid > 0) {
1826 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1827 -s->control_pid :
1828 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1829
ca949c9d
LP		 1830 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1831 else
1832 wait_for_exit = true;
1833 }
50159e6a 1834
ca949c9d 1835 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1836
ca949c9d
LP		 1837 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1838 r = -ENOMEM;
50159e6a 1839 goto fail;
ca949c9d
LP		 1840 }
1841
1842 /* Exclude the main/control pids from being killed via the cgroup */
1843 if (s->main_pid > 0)
1844 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1845 goto fail;
1846
1847 if (s->control_pid > 0)
1848 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1849 goto fail;
1850
1851 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1852 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1853 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1854 } else if (r > 0)
ca949c9d
LP		 1855 wait_for_exit = true;
1856
1857 set_free(pid_set);
50159e6a 1858 }
d6ea93e3 1859 }
034c6ed7 1860
ca949c9d 1861 if (wait_for_exit) {
e558336f
LP		 1862 if (s->timeout_usec > 0)
1863 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1864 goto fail;
d6ea93e3 1865
80876c20
LP		 1866 service_set_state(s, state);
1867 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1868 service_enter_stop_post(s, true);
1869 else
034c6ed7
LP		 1870 service_enter_dead(s, true, true);
1871
1872 return;
1873
1874fail:
4cd1fbcc 1875 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1876
80876c20 1877 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1878 service_enter_stop_post(s, false);
1879 else
1880 service_enter_dead(s, false, true);
ca949c9d
LP		 1881
1882 if (pid_set)
1883 set_free(pid_set);
034c6ed7
LP		 1884}
1885
1886static void service_enter_stop(Service *s, bool success) {
1887 int r;
5925dd3c 1888
034c6ed7
LP		 1889 assert(s);
1890
1891 if (!success)
1892 s->failure = true;
1893
5e94833f
LP		 1894 service_unwatch_control_pid(s);
1895
a16e1123 1896 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1897 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1898 if ((r = service_spawn(s,
1899 s->control_command,
1900 true,
1901 false,
1902 !s->permissions_start_only,
1903 !s->root_directory_start_only,
c952c6ec 1904 false,
1e3ad081 1905 false,
e55224ca 1906 &s->control_pid)) < 0)
034c6ed7
LP		 1907 goto fail;
1908
80876c20
LP		 1909 service_set_state(s, SERVICE_STOP);
1910 } else
034c6ed7
LP		 1911 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1912
1913 return;
1914
1915fail:
4cd1fbcc 1916 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1917 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1918}
1919
80876c20 1920static void service_enter_running(Service *s, bool success) {
4eab639f 1921 int main_pid_ok, cgroup_ok;
80876c20
LP		 1922 assert(s);
1923
1924 if (!success)
1925 s->failure = true;
1926
4eab639f
LP		 1927 main_pid_ok = main_pid_good(s);
1928 cgroup_ok = cgroup_good(s);
1929
1930 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1931 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1932 service_set_state(s, SERVICE_RUNNING);
02ee865a 1933 else if (s->remain_after_exit)
80876c20
LP		 1934 service_set_state(s, SERVICE_EXITED);
1935 else
1936 service_enter_stop(s, true);
1937}
1938
034c6ed7
LP		 1939static void service_enter_start_post(Service *s) {
1940 int r;
1941 assert(s);
1942
5e94833f
LP		 1943 service_unwatch_control_pid(s);
1944
a16e1123 1945 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1946 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1947 if ((r = service_spawn(s,
1948 s->control_command,
1949 true,
1950 false,
1951 !s->permissions_start_only,
1952 !s->root_directory_start_only,
c952c6ec 1953 false,
1e3ad081 1954 false,
e55224ca 1955 &s->control_pid)) < 0)
034c6ed7
LP		 1956 goto fail;
1957
80876c20
LP		 1958 service_set_state(s, SERVICE_START_POST);
1959 } else
1960 service_enter_running(s, true);
034c6ed7
LP		 1961
1962 return;
1963
1964fail:
4cd1fbcc 1965 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1966 service_enter_stop(s, false);
1967}
1968
1969static void service_enter_start(Service *s) {
1970 pid_t pid;
1971 int r;
1972
1973 assert(s);
1974
1975 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1976 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1977
80876c20
LP		 1978 if (s->type == SERVICE_FORKING)
1979 service_unwatch_control_pid(s);
1980 else
1981 service_unwatch_main_pid(s);
1982
34e9ba66
LP		 1983 s->control_command_id = SERVICE_EXEC_START;
1984 s->control_command = s->exec_command[SERVICE_EXEC_START];
1985
81a2b7ce 1986 if ((r = service_spawn(s,
34e9ba66 1987 s->control_command,
8c47c732 1988 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1989 true,
1990 true,
1991 true,
1e3ad081 1992 true,
c952c6ec 1993 s->notify_access != NOTIFY_NONE,
81a2b7ce 1994 &pid)) < 0)
034c6ed7
LP		 1995 goto fail;
1996
1997 if (s->type == SERVICE_SIMPLE) {
1998 /* For simple services we immediately start
1999 * the START_POST binaries. */
2000
5925dd3c 2001 service_set_main_pid(s, pid);
034c6ed7
LP		 2002 service_enter_start_post(s);
2003
2004 } else if (s->type == SERVICE_FORKING) {
2005
2006 /* For forking services we wait until the start
2007 * process exited. */
2008
e55224ca 2009 s->control_pid = pid;
80876c20
LP		 2010 service_set_state(s, SERVICE_START);
2011
34e9ba66 2012 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2013 s->type == SERVICE_DBUS ||
2014 s->type == SERVICE_NOTIFY) {
7d55e835 2015
34e9ba66 2016 /* For oneshot services we wait until the start
7d55e835
LP		 2017 * process exited, too, but it is our main process. */
2018
05e343b7 2019 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2020 * but wait for the bus name to appear on the
2021 * bus. Notify services are similar. */
05e343b7 2022
5925dd3c 2023 service_set_main_pid(s, pid);
80876c20 2024 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2025 } else
2026 assert_not_reached("Unknown service type");
2027
2028 return;
2029
2030fail:
4cd1fbcc 2031 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2032 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2033}
2034
2035static void service_enter_start_pre(Service *s) {
2036 int r;
2037
2038 assert(s);
2039
5e94833f
LP		 2040 service_unwatch_control_pid(s);
2041
a16e1123 2042 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 2043 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 2044 if ((r = service_spawn(s,
2045 s->control_command,
2046 true,
2047 false,
2048 !s->permissions_start_only,
2049 !s->root_directory_start_only,
1e3ad081 2050 true,
c952c6ec 2051 false,
e55224ca 2052 &s->control_pid)) < 0)
034c6ed7
LP		 2053 goto fail;
2054
80876c20
LP		 2055 service_set_state(s, SERVICE_START_PRE);
2056 } else
034c6ed7
LP		 2057 service_enter_start(s);
2058
2059 return;
2060
2061fail:
4cd1fbcc 2062 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2063 service_enter_dead(s, false, true);
2064}
2065
2066static void service_enter_restart(Service *s) {
2067 int r;
398ef8ba
LP		 2068 DBusError error;
2069
034c6ed7 2070 assert(s);
398ef8ba 2071 dbus_error_init(&error);
034c6ed7 2072
2edfa366
LP		 2073 if (s->meta.job) {
2074 log_info("Job pending for unit, delaying automatic restart.");
2075
2076 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2077 goto fail;
2078 }
2079
9ea9a0c8
LP		 2080 service_enter_dead(s, true, false);
2081
7b2603e6 2082 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2083 goto fail;
2084
4cd1fbcc 2085 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2086 return;
2087
2088fail:
398ef8ba 2089 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2090 service_enter_dead(s, false, false);
398ef8ba
LP		 2091
2092 dbus_error_free(&error);
034c6ed7
LP		 2093}
2094
2095static void service_enter_reload(Service *s) {
2096 int r;
2097
2098 assert(s);
2099
5e94833f
LP		 2100 service_unwatch_control_pid(s);
2101
a16e1123 2102 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 2103 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 2104 if ((r = service_spawn(s,
2105 s->control_command,
2106 true,
2107 false,
2108 !s->permissions_start_only,
2109 !s->root_directory_start_only,
c952c6ec 2110 false,
1e3ad081 2111 false,
e55224ca 2112 &s->control_pid)) < 0)
034c6ed7
LP		 2113 goto fail;
2114
80876c20
LP		 2115 service_set_state(s, SERVICE_RELOAD);
2116 } else
2117 service_enter_running(s, true);
034c6ed7
LP		 2118
2119 return;
2120
2121fail:
4cd1fbcc 2122 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2123 service_enter_stop(s, false);
2124}
2125
34e9ba66 2126static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2127 int r;
2128
2129 assert(s);
2130 assert(s->control_command);
2131 assert(s->control_command->command_next);
2132
2133 if (!success)
2134 s->failure = true;
2135
34e9ba66 2136 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2137
34e9ba66 2138 s->control_command = s->control_command->command_next;
5e94833f
LP		 2139 service_unwatch_control_pid(s);
2140
81a2b7ce
LP		 2141 if ((r = service_spawn(s,
2142 s->control_command,
2143 true,
2144 false,
2145 !s->permissions_start_only,
2146 !s->root_directory_start_only,
5830833f
LP		 2147 s->control_command_id == SERVICE_EXEC_START_PRE ||
2148 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2149 false,
e55224ca 2150 &s->control_pid)) < 0)
034c6ed7
LP		 2151 goto fail;
2152
2153 return;
2154
2155fail:
34e9ba66 2156 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2157
80876c20
LP		 2158 if (s->state == SERVICE_START_PRE)
2159 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2160 else if (s->state == SERVICE_STOP)
2161 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2162 else if (s->state == SERVICE_STOP_POST)
2163 service_enter_dead(s, false, true);
2164 else
2165 service_enter_stop(s, false);
5cb5a6ff
LP		 2166}
2167
34e9ba66
LP		 2168static void service_run_next_main(Service *s, bool success) {
2169 pid_t pid;
2170 int r;
2171
2172 assert(s);
2173 assert(s->control_command);
2174 assert(s->control_command->command_next);
2175
2176 if (!success)
2177 s->failure = true;
2178
2179 assert(s->control_command_id == SERVICE_EXEC_START);
2180 assert(s->type == SERVICE_ONESHOT);
2181
2182 s->control_command = s->control_command->command_next;
2183 service_unwatch_main_pid(s);
2184
2185 if ((r = service_spawn(s,
2186 s->control_command,
2187 false,
2188 true,
2189 true,
2190 true,
2191 true,
2192 s->notify_access != NOTIFY_NONE,
2193 &pid)) < 0)
2194 goto fail;
2195
2196 service_set_main_pid(s, pid);
2197
2198 return;
2199
2200fail:
2201 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2202 service_enter_stop(s, false);
2203}
2204
87f0e418
LP		 2205static int service_start(Unit *u) {
2206 Service *s = SERVICE(u);
5cb5a6ff
LP		 2207
2208 assert(s);
2209
034c6ed7
LP		 2210 /* We cannot fulfill this request right now, try again later
2211 * please! */
2212 if (s->state == SERVICE_STOP ||
2213 s->state == SERVICE_STOP_SIGTERM ||
2214 s->state == SERVICE_STOP_SIGKILL ||
2215 s->state == SERVICE_STOP_POST ||
2216 s->state == SERVICE_FINAL_SIGTERM ||
2217 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2218 return -EAGAIN;
2219
034c6ed7
LP		 2220 /* Already on it! */
2221 if (s->state == SERVICE_START_PRE ||
2222 s->state == SERVICE_START ||
2223 s->state == SERVICE_START_POST)
2224 return 0;
2225
fdf20a31 2226 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2227
1e2e8133
LP		 2228 /* Make sure we don't enter a busy loop of some kind. */
2229 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2230 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2231 return -ECANCELED;
1e2e8133
LP		 2232 }
2233
034c6ed7
LP		 2234 s->failure = false;
2235 s->main_pid_known = false;
47342320 2236 s->forbid_restart = false;
034c6ed7
LP		 2237
2238 service_enter_start_pre(s);
2239 return 0;
5cb5a6ff
LP		 2240}
2241
87f0e418
LP		 2242static int service_stop(Unit *u) {
2243 Service *s = SERVICE(u);
5cb5a6ff
LP		 2244
2245 assert(s);
2246
3f6c78dc
LP		 2247 /* This is a user request, so don't do restarts on this
2248 * shutdown. */
47342320 2249 s->forbid_restart = true;
034c6ed7 2250
e537352b
LP		 2251 /* Already on it */
2252 if (s->state == SERVICE_STOP ||
2253 s->state == SERVICE_STOP_SIGTERM ||
2254 s->state == SERVICE_STOP_SIGKILL ||
2255 s->state == SERVICE_STOP_POST ||
2256 s->state == SERVICE_FINAL_SIGTERM ||
2257 s->state == SERVICE_FINAL_SIGKILL)
2258 return 0;
2259
3f6c78dc 2260 /* Don't allow a restart */
034c6ed7
LP		 2261 if (s->state == SERVICE_AUTO_RESTART) {
2262 service_set_state(s, SERVICE_DEAD);
2263 return 0;
2264 }
2265
3f6c78dc
LP		 2266 /* If there's already something running we go directly into
2267 * kill mode. */
2268 if (s->state == SERVICE_START_PRE ||
2269 s->state == SERVICE_START ||
2270 s->state == SERVICE_START_POST ||
2271 s->state == SERVICE_RELOAD) {
2272 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2273 return 0;
2274 }
5cb5a6ff 2275
3f6c78dc
LP		 2276 assert(s->state == SERVICE_RUNNING ||
2277 s->state == SERVICE_EXITED);
3a762661 2278
034c6ed7 2279 service_enter_stop(s, true);
5cb5a6ff
LP		 2280 return 0;
2281}
2282
87f0e418
LP		 2283static int service_reload(Unit *u) {
2284 Service *s = SERVICE(u);
034c6ed7
LP		 2285
2286 assert(s);
2287
80876c20 2288 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2289
2290 service_enter_reload(s);
5cb5a6ff
LP		 2291 return 0;
2292}
2293
87f0e418
LP		 2294static bool service_can_reload(Unit *u) {
2295 Service *s = SERVICE(u);
034c6ed7
LP		 2296
2297 assert(s);
2298
2299 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2300}
2301
a16e1123
LP		 2302static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2303 Service *s = SERVICE(u);
2304
2305 assert(u);
2306 assert(f);
2307 assert(fds);
2308
2309 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2310 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2311
2312 if (s->control_pid > 0)
5925dd3c 2313 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2314
5925dd3c
LP		 2315 if (s->main_pid_known && s->main_pid > 0)
2316 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2317
2318 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2319
3a2776bc
LP		 2320 if (s->status_text)
2321 unit_serialize_item(u, f, "status-text", s->status_text);
2322
a16e1123
LP		 2323 /* There's a minor uncleanliness here: if there are multiple
2324 * commands attached here, we will start from the first one
2325 * again */
2326 if (s->control_command_id >= 0)
825636e5 2327 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2328
2329 if (s->socket_fd >= 0) {
2330 int copy;
2331
2332 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2333 return copy;
2334
2335 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2336 }
2337
ecdbca40
LP		 2338 if (s->main_exec_status.pid > 0) {
2339 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2340 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2341 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2342
799fd0fd 2343 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2344 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2345 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2346 }
2347 }
2348
a16e1123
LP		 2349 return 0;
2350}
2351
2352static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2353 Service *s = SERVICE(u);
a16e1123
LP		 2354
2355 assert(u);
2356 assert(key);
2357 assert(value);
2358 assert(fds);
2359
2360 if (streq(key, "state")) {
2361 ServiceState state;
2362
2363 if ((state = service_state_from_string(value)) < 0)
2364 log_debug("Failed to parse state value %s", value);
2365 else
2366 s->deserialized_state = state;
2367 } else if (streq(key, "failure")) {
2368 int b;
2369
2370 if ((b = parse_boolean(value)) < 0)
2371 log_debug("Failed to parse failure value %s", value);
2372 else
2373 s->failure = b || s->failure;
2374 } else if (streq(key, "control-pid")) {
5925dd3c 2375 pid_t pid;
a16e1123 2376
e364ad06 2377 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2378 log_debug("Failed to parse control-pid value %s", value);
2379 else
e55224ca 2380 s->control_pid = pid;
a16e1123 2381 } else if (streq(key, "main-pid")) {
5925dd3c 2382 pid_t pid;
a16e1123 2383
e364ad06 2384 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2385 log_debug("Failed to parse main-pid value %s", value);
2386 else
5925dd3c 2387 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2388 } else if (streq(key, "main-pid-known")) {
2389 int b;
2390
2391 if ((b = parse_boolean(value)) < 0)
2392 log_debug("Failed to parse main-pid-known value %s", value);
2393 else
2394 s->main_pid_known = b;
3a2776bc
LP		 2395 } else if (streq(key, "status-text")) {
2396 char *t;
2397
2398 if ((t = strdup(value))) {
2399 free(s->status_text);
2400 s->status_text = t;
2401 }
2402
a16e1123
LP		 2403 } else if (streq(key, "control-command")) {
2404 ServiceExecCommand id;
2405
2406 if ((id = service_exec_command_from_string(value)) < 0)
2407 log_debug("Failed to parse exec-command value %s", value);
2408 else {
2409 s->control_command_id = id;
2410 s->control_command = s->exec_command[id];
2411 }
2412 } else if (streq(key, "socket-fd")) {
2413 int fd;
2414
2415 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2416 log_debug("Failed to parse socket-fd value %s", value);
2417 else {
2418
2419 if (s->socket_fd >= 0)
2420 close_nointr_nofail(s->socket_fd);
2421 s->socket_fd = fdset_remove(fds, fd);
2422 }
ecdbca40
LP		 2423 } else if (streq(key, "main-exec-status-pid")) {
2424 pid_t pid;
2425
e364ad06 2426 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2427 log_debug("Failed to parse main-exec-status-pid value %s", value);
2428 else
2429 s->main_exec_status.pid = pid;
2430 } else if (streq(key, "main-exec-status-code")) {
2431 int i;
2432
e364ad06 2433 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2434 log_debug("Failed to parse main-exec-status-code value %s", value);
2435 else
2436 s->main_exec_status.code = i;
2437 } else if (streq(key, "main-exec-status-status")) {
2438 int i;
2439
e364ad06 2440 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2441 log_debug("Failed to parse main-exec-status-status value %s", value);
2442 else
2443 s->main_exec_status.status = i;
799fd0fd
LP		 2444 } else if (streq(key, "main-exec-status-start"))
2445 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2446 else if (streq(key, "main-exec-status-exit"))
2447 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2448 else
a16e1123
LP		 2449 log_debug("Unknown serialization key '%s'", key);
2450
2451 return 0;
2452}
2453
87f0e418
LP		 2454static UnitActiveState service_active_state(Unit *u) {
2455 assert(u);
5cb5a6ff 2456
acbb0225 2457 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2458}
2459
10a94420
LP		 2460static const char *service_sub_state_to_string(Unit *u) {
2461 assert(u);
2462
2463 return service_state_to_string(SERVICE(u)->state);
2464}
2465
07459bb6 2466#ifdef HAVE_SYSV_COMPAT
701cc384
LP		 2467static bool service_check_gc(Unit *u) {
2468 Service *s = SERVICE(u);
2469
2470 assert(s);
2471
2472 return !!s->sysv_path;
2473}
07459bb6 2474#endif
701cc384
LP		 2475
2476static bool service_check_snapshot(Unit *u) {
2477 Service *s = SERVICE(u);
2478
2479 assert(s);
2480
2481 return !s->got_socket_fd;
2482}
2483
87f0e418
LP		 2484static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2485 Service *s = SERVICE(u);
034c6ed7 2486 bool success;
5cb5a6ff
LP		 2487
2488 assert(s);
034c6ed7
LP		 2489 assert(pid >= 0);
2490
f21781d5 2491 if (!s->meta.fragment_path)
d06dacd0
LP		 2492 success = is_clean_exit_lsb(code, status);
2493 else
2494 success = is_clean_exit(code, status);
034c6ed7
LP		 2495
2496 if (s->main_pid == pid) {
2497
034c6ed7 2498 s->main_pid = 0;
169c1bda 2499 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
034c6ed7 2500
34e9ba66
LP		 2501 if (s->type != SERVICE_FORKING && s->control_command) {
2502 s->control_command->exec_status = s->main_exec_status;
b708e7ce 2503
34e9ba66 2504 if (s->control_command->ignore)
b708e7ce 2505 success = true;
034c6ed7
LP		 2506 }
2507
92abbefb
LP		 2508 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2509 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2510 s->failure = s->failure || !success;
034c6ed7 2511
34e9ba66
LP		 2512 if (s->control_command &&
2513 s->control_command->command_next &&
2514 success) {
034c6ed7 2515
34e9ba66
LP		 2516 /* There is another command to *
2517 * execute, so let's do that. */
034c6ed7 2518
34e9ba66
LP		 2519 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2520 service_run_next_main(s, success);
034c6ed7 2521
34e9ba66
LP		 2522 } else {
2523
2524 /* The service exited, so the service is officially
2525 * gone. */
2526
2527 s->control_command = NULL;
2528 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2529
2530 switch (s->state) {
2531
2532 case SERVICE_START_POST:
2533 case SERVICE_RELOAD:
2534 case SERVICE_STOP:
2535 /* Need to wait until the operation is
2536 * done */
c4653a4d 2537 break;
7d55e835 2538
34e9ba66
LP		 2539 case SERVICE_START:
2540 if (s->type == SERVICE_ONESHOT) {
2541 /* This was our main goal, so let's go on */
2542 if (success)
2543 service_enter_start_post(s);
2544 else
2545 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2546 break;
2547 } else {
2548 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2549
34e9ba66
LP		 2550 /* Fall through */
2551 }
034c6ed7 2552
34e9ba66
LP		 2553 case SERVICE_RUNNING:
2554 service_enter_running(s, success);
2555 break;
034c6ed7 2556
34e9ba66
LP		 2557 case SERVICE_STOP_SIGTERM:
2558 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2559
34e9ba66
LP		 2560 if (!control_pid_good(s))
2561 service_enter_stop_post(s, success);
5cb5a6ff 2562
34e9ba66
LP		 2563 /* If there is still a control process, wait for that first */
2564 break;
2565
2566 default:
2567 assert_not_reached("Uh, main process died at wrong time.");
2568 }
034c6ed7 2569 }
5cb5a6ff 2570
034c6ed7 2571 } else if (s->control_pid == pid) {
034c6ed7 2572
34e9ba66
LP		 2573 s->control_pid = 0;
2574
b708e7ce 2575 if (s->control_command) {
169c1bda 2576 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 2577
b708e7ce
LP		 2578 if (s->control_command->ignore)
2579 success = true;
2580 }
2581
34e9ba66 2582 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2583 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2584 s->failure = s->failure || !success;
034c6ed7 2585
34e9ba66
LP		 2586 if (s->control_command &&
2587 s->control_command->command_next &&
2588 success) {
034c6ed7
LP		 2589
2590 /* There is another command to *
2591 * execute, so let's do that. */
2592
34e9ba66
LP		 2593 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2594 service_run_next_control(s, success);
034c6ed7 2595
80876c20 2596 } else {
034c6ed7
LP		 2597 /* No further commands for this step, so let's
2598 * figure out what to do next */
2599
a16e1123
LP		 2600 s->control_command = NULL;
2601 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2602
9e2f7c11 2603 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2604
034c6ed7
LP		 2605 switch (s->state) {
2606
2607 case SERVICE_START_PRE:
2608 if (success)
2609 service_enter_start(s);
2610 else
80876c20 2611 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2612 break;
2613
2614 case SERVICE_START:
2615 assert(s->type == SERVICE_FORKING);
2616
2617 /* Let's try to load the pid
2618 * file here if we can. We
2619 * ignore the return value,
2620 * since the PID file might
2621 * actually be created by a
2622 * START_POST script */
2623
2624 if (success) {
4fbf50b3
LP		 2625 service_load_pid_file(s);
2626 service_search_main_pid(s);
034c6ed7
LP		 2627
2628 service_enter_start_post(s);
2629 } else
80876c20 2630 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2631
2632 break;
2633
2634 case SERVICE_START_POST:
2635 if (success && s->pid_file && !s->main_pid_known) {
2636 int r;
2637
2638 /* Hmm, let's see if we can
2639 * load the pid now after the
2640 * start-post scripts got
2641 * executed. */
2642
2643 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2644 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2645 }
2646
2647 /* Fall through */
2648
2649 case SERVICE_RELOAD:
80876c20
LP		 2650 if (success)
2651 service_enter_running(s, true);
2652 else
d8cfa085 2653 service_enter_running(s, false);
034c6ed7
LP		 2654
2655 break;
2656
2657 case SERVICE_STOP:
80876c20 2658 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2659 break;
2660
2661 case SERVICE_STOP_SIGTERM:
2662 case SERVICE_STOP_SIGKILL:
2663 if (main_pid_good(s) <= 0)
2664 service_enter_stop_post(s, success);
2665
2666 /* If there is still a service
2667 * process around, wait until
2668 * that one quit, too */
2669 break;
2670
2671 case SERVICE_STOP_POST:
2672 case SERVICE_FINAL_SIGTERM:
2673 case SERVICE_FINAL_SIGKILL:
2674 service_enter_dead(s, success, true);
2675 break;
2676
2677 default:
2678 assert_not_reached("Uh, control process died at wrong time.");
2679 }
2680 }
8c47c732 2681 }
c4e2ceae
LP		 2682
2683 /* Notify clients about changed exit status */
2684 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2685}
2686
acbb0225 2687static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2688 Service *s = SERVICE(u);
034c6ed7
LP		 2689
2690 assert(s);
2691 assert(elapsed == 1);
2692
acbb0225 2693 assert(w == &s->timer_watch);
034c6ed7
LP		 2694
2695 switch (s->state) {
2696
2697 case SERVICE_START_PRE:
2698 case SERVICE_START:
9e2f7c11 2699 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2700 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2701 break;
2702
034c6ed7
LP		 2703 case SERVICE_START_POST:
2704 case SERVICE_RELOAD:
9e2f7c11 2705 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2706 service_enter_stop(s, false);
2707 break;
2708
2709 case SERVICE_STOP:
9e2f7c11 2710 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2711 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2712 break;
2713
2714 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2715 if (s->exec_context.send_sigkill) {
2716 log_warning("%s stopping timed out. Killing.", u->meta.id);
2717 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2718 } else {
2719 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2720 service_enter_stop_post(s, false);
2721 }
2722
034c6ed7
LP		 2723 break;
2724
2725 case SERVICE_STOP_SIGKILL:
2726 /* Uh, wie sent a SIGKILL and it is still not gone?
2727 * Must be something we cannot kill, so let's just be
2728 * weirded out and continue */
2729
9e2f7c11 2730 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2731 service_enter_stop_post(s, false);
2732 break;
2733
2734 case SERVICE_STOP_POST:
9e2f7c11 2735 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2736 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2737 break;
2738
2739 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2740 if (s->exec_context.send_sigkill) {
2741 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2742 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2743 } else {
2744 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2745 service_enter_dead(s, false, true);
2746 }
2747
034c6ed7
LP		 2748 break;
2749
2750 case SERVICE_FINAL_SIGKILL:
fdf20a31 2751 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2752 service_enter_dead(s, false, true);
2753 break;
2754
2755 case SERVICE_AUTO_RESTART:
54165a39 2756 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2757 service_enter_restart(s);
2758 break;
2759
2760 default:
2761 assert_not_reached("Timeout at wrong time.");
2762 }
5cb5a6ff
LP		 2763}
2764
8e274523
LP		 2765static void service_cgroup_notify_event(Unit *u) {
2766 Service *s = SERVICE(u);
2767
2768 assert(u);
2769
9e2f7c11 2770 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2771
2772 switch (s->state) {
2773
2774 /* Waiting for SIGCHLD is usually more interesting,
2775 * because it includes return codes/signals. Which is
2776 * why we ignore the cgroup events for most cases,
2777 * except when we don't know pid which to expect the
2778 * SIGCHLD for. */
2779
2780 case SERVICE_RUNNING:
80876c20 2781 service_enter_running(s, true);
8e274523
LP		 2782 break;
2783
28708d8a
LP		 2784 case SERVICE_STOP_SIGTERM:
2785 case SERVICE_STOP_SIGKILL:
2786 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2787 service_enter_stop_post(s, true);
2788
2789 break;
2790
7f97f0fe
LP		 2791 case SERVICE_FINAL_SIGTERM:
2792 case SERVICE_FINAL_SIGKILL:
2793 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2794 service_enter_dead(s, true, true);
2795
2796 break;
2797
8e274523
LP		 2798 default:
2799 ;
2800 }
2801}
2802
c952c6ec 2803static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2804 Service *s = SERVICE(u);
2805 const char *e;
2806
2807 assert(u);
2808
c952c6ec
LP		 2809 if (s->notify_access == NOTIFY_NONE) {
2810 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2811 u->meta.id, (unsigned long) pid);
2812 return;
2813 }
2814
2815 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2816 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2817 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2818 return;
2819 }
2820
8c47c732
LP		 2821 log_debug("%s: Got message", u->meta.id);
2822
2823 /* Interpret MAINPID= */
2824 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2825 (s->state == SERVICE_START ||
2826 s->state == SERVICE_START_POST ||
2827 s->state == SERVICE_RUNNING ||
2828 s->state == SERVICE_RELOAD)) {
8c47c732 2829
5925dd3c 2830 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2831 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2832 else {
2833 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2834 service_set_main_pid(s, pid);
8c47c732
LP		 2835 }
2836 }
2837
2838 /* Interpret READY= */
2839 if (s->type == SERVICE_NOTIFY &&
2840 s->state == SERVICE_START &&
2841 strv_find(tags, "READY=1")) {
2842 log_debug("%s: got READY=1", u->meta.id);
2843
2844 service_enter_start_post(s);
2845 }
2846
2847 /* Interpret STATUS= */
2848 if ((e = strv_find_prefix(tags, "STATUS="))) {
2849 char *t;
2850
3a2776bc
LP		 2851 if (e[7]) {
2852 if (!(t = strdup(e+7))) {
2853 log_error("Failed to allocate string.");
2854 return;
2855 }
2856
2857 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2858
3a2776bc
LP		 2859 free(s->status_text);
2860 s->status_text = t;
2861 } else {
2862 free(s->status_text);
2863 s->status_text = NULL;
2864 }
8c47c732 2865
8c47c732 2866 }
c4e2ceae
LP		 2867
2868 /* Notify clients about changed status or main pid */
2869 unit_add_to_dbus_queue(u);
8c47c732
LP		 2870}
2871
07459bb6 2872#ifdef HAVE_SYSV_COMPAT
2c4104f0 2873static int service_enumerate(Manager *m) {
2c4104f0
LP		 2874 char **p;
2875 unsigned i;
2876 DIR *d = NULL;
2877 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2878 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2879 Unit *service;
2880 Iterator j;
2c4104f0
LP		 2881 int r;
2882
2883 assert(m);
2884
c68364b7
LP		 2885 zero(runlevel_services);
2886
84e3543e 2887 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2888 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2889 struct dirent *de;
2890
2891 free(path);
2892 path = NULL;
09cd1ab1 2893 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2894 r = -ENOMEM;
2895 goto finish;
2896 }
2897
2898 if (d)
2899 closedir(d);
2900
2901 if (!(d = opendir(path))) {
2902 if (errno != ENOENT)
2903 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2904
2905 continue;
2906 }
2907
2908 while ((de = readdir(d))) {
db06e3b6 2909 int a, b;
2c4104f0
LP		 2910
2911 if (ignore_file(de->d_name))
2912 continue;
2913
2914 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2915 continue;
2916
2917 if (strlen(de->d_name) < 4)
2918 continue;
2919
db06e3b6
LP		 2920 a = undecchar(de->d_name[1]);
2921 b = undecchar(de->d_name[2]);
2922
2923 if (a < 0 || b < 0)
2924 continue;
2925
2c4104f0
LP		 2926 free(fpath);
2927 fpath = NULL;
09cd1ab1 2928 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2929 r = -ENOMEM;
2930 goto finish;
2931 }
2932
2933 if (access(fpath, X_OK) < 0) {
2934
2935 if (errno != ENOENT)
2936 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2937
2938 continue;
2939 }
2940
2941 free(name);
b7ccee3c 2942 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2943 r = -ENOMEM;
2944 goto finish;
2945 }
2946
398ef8ba 2947 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2948 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2949 continue;
2950 }
2c4104f0 2951
c68364b7
LP		 2952 if (de->d_name[0] == 'S') {
2953
f73d93a4
LP		 2954 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2955 SERVICE(service)->sysv_start_priority =
2956 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 2957
c68364b7 2958 SERVICE(service)->sysv_enabled = true;
f73d93a4 2959 }
db06e3b6 2960
c68364b7
LP		 2961 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
2962 goto finish;
2c4104f0 2963
c68364b7 2964 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 2965 goto finish;
23a177ef 2966
fc5df99e
LP		 2967 } else if (de->d_name[0] == 'K' &&
2968 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2969 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2970
c68364b7
LP		 2971 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
2972 goto finish;
2973
2974 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 2975 goto finish;
2976 }
2977 }
2978 }
2979
c68364b7
LP		 2980 /* Now we loaded all stubs and are aware of the lowest
2981 start-up priority for all services, not let's actually load
2982 the services, this will also tell us which services are
2983 actually native now */
2984 manager_dispatch_load_queue(m);
2985
2986 /* If this is a native service, rely on native ways to pull in
2987 * a service, don't pull it in via sysv rcN.d links. */
2988 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
2989 SET_FOREACH(service, runlevel_services[i], j) {
2990 service = unit_follow_merge(service);
2991
2992 if (service->meta.fragment_path)
2993 continue;
2994
2995 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2996 goto finish;
2997 }
2998
2999 /* We honour K links only for halt/reboot. For the normal
3000 * runlevels we assume the stop jobs will be implicitly added
3001 * by the core logic. Also, we don't really distuingish here
3002 * between the runlevels 0 and 6 and just add them to the
3003 * special shutdown target. On SUSE the boot.d/ runlevel is
3004 * also used for shutdown, so we add links for that too to the
3005 * shutdown target.*/
3006 SET_FOREACH(service, shutdown_services, j) {
3007 service = unit_follow_merge(service);
3008
3009 if (service->meta.fragment_path)
3010 continue;
3011
ead8e478 3012 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3013 goto finish;
3014 }
3015
2c4104f0
LP		 3016 r = 0;
3017
3018finish:
3019 free(path);
3020 free(fpath);
3021 free(name);
fbe9f3a9 3022
c68364b7
LP		 3023 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3024 set_free(runlevel_services[i]);
3025 set_free(shutdown_services);
3026
fbe9f3a9
LP		 3027 if (d)
3028 closedir(d);
2c4104f0
LP		 3029
3030 return r;
3031}
07459bb6 3032#endif
2c4104f0 3033
05e343b7
LP		 3034static void service_bus_name_owner_change(
3035 Unit *u,
3036 const char *name,
3037 const char *old_owner,
3038 const char *new_owner) {
3039
3040 Service *s = SERVICE(u);
3041
3042 assert(s);
3043 assert(name);
3044
3045 assert(streq(s->bus_name, name));
3046 assert(old_owner || new_owner);
3047
3048 if (old_owner && new_owner)
3049 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3050 else if (old_owner)
3051 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3052 else
3053 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3054
3055 s->bus_name_good = !!new_owner;
3056
3057 if (s->type == SERVICE_DBUS) {
3058
3059 /* service_enter_running() will figure out what to
3060 * do */
3061 if (s->state == SERVICE_RUNNING)
3062 service_enter_running(s, true);
3063 else if (s->state == SERVICE_START && new_owner)
3064 service_enter_start_post(s);
3065
3066 } else if (new_owner &&
3067 s->main_pid <= 0 &&
3068 (s->state == SERVICE_START ||
3069 s->state == SERVICE_START_POST ||
3070 s->state == SERVICE_RUNNING ||
3071 s->state == SERVICE_RELOAD)) {
3072
3073 /* Try to acquire PID from bus service */
3074 log_debug("Trying to acquire PID from D-Bus name...");
3075
3076 bus_query_pid(u->meta.manager, name);
3077 }
3078}
3079
3080static void service_bus_query_pid_done(
3081 Unit *u,
3082 const char *name,
3083 pid_t pid) {
3084
3085 Service *s = SERVICE(u);
3086
3087 assert(s);
3088 assert(name);
3089
3090 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3091
3092 if (s->main_pid <= 0 &&
3093 (s->state == SERVICE_START ||
3094 s->state == SERVICE_START_POST ||
3095 s->state == SERVICE_RUNNING ||
3096 s->state == SERVICE_RELOAD))
5925dd3c 3097 service_set_main_pid(s, pid);
05e343b7
LP		 3098}
3099
6cf6bbc2 3100int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3101 assert(s);
3102 assert(fd >= 0);
3103
3104 /* This is called by the socket code when instantiating a new
3105 * service for a stream socket and the socket needs to be
3106 * configured. */
3107
4cd1fbcc 3108 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3109 return -EINVAL;
3110
3111 if (s->socket_fd >= 0)
3112 return -EBUSY;
3113
3114 if (s->state != SERVICE_DEAD)
3115 return -EAGAIN;
3116
3117 s->socket_fd = fd;
701cc384 3118 s->got_socket_fd = true;
f976f3f6 3119 s->accept_socket = sock;
6cf6bbc2 3120
4f2d528d
LP		 3121 return 0;
3122}
3123
fdf20a31 3124static void service_reset_failed(Unit *u) {
5632e374
LP		 3125 Service *s = SERVICE(u);
3126
3127 assert(s);
3128
fdf20a31 3129 if (s->state == SERVICE_FAILED)
5632e374
LP		 3130 service_set_state(s, SERVICE_DEAD);
3131
3132 s->failure = false;
3133}
3134
8a0867d6
LP		 3135static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3136 Service *s = SERVICE(u);
3137 int r = 0;
3138 Set *pid_set = NULL;
3139
3140 assert(s);
3141
3142 if (s->main_pid <= 0 && who == KILL_MAIN) {
3143 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3144 return -EINVAL;
3145 }
3146
3147 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3148 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3149 return -ENOENT;
3150 }
3151
3152 if (s->control_pid > 0)
3153 if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
3154 r = -errno;
3155
3156 if (s->main_pid > 0)
3157 if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0)
3158 r = -errno;
3159
3160 if (mode == KILL_CONTROL_GROUP) {
3161 int q;
3162
3163 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3164 return -ENOMEM;
3165
3166 /* Exclude the control/main pid from being killed via the cgroup */
3167 if (s->control_pid > 0)
3168 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3169 r = q;
3170 goto finish;
3171 }
3172
3173 if (s->main_pid > 0)
3174 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3175 r = q;
3176 goto finish;
3177 }
3178
3179 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
3180 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3181 r = q;
3182 }
3183
3184finish:
3185 if (pid_set)
3186 set_free(pid_set);
3187
3188 return r;
3189}
3190
94f04347
LP		 3191static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3192 [SERVICE_DEAD] = "dead",
3193 [SERVICE_START_PRE] = "start-pre",
3194 [SERVICE_START] = "start",
3195 [SERVICE_START_POST] = "start-post",
3196 [SERVICE_RUNNING] = "running",
80876c20 3197 [SERVICE_EXITED] = "exited",
94f04347
LP		 3198 [SERVICE_RELOAD] = "reload",
3199 [SERVICE_STOP] = "stop",
3200 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3201 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3202 [SERVICE_STOP_POST] = "stop-post",
3203 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3204 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3205 [SERVICE_FAILED] = "failed",
94f04347
LP		 3206 [SERVICE_AUTO_RESTART] = "auto-restart",
3207};
3208
3209DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3210
3211static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3212 [SERVICE_RESTART_NO] = "no",
3213 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3214 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3215 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3216 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3217};
3218
3219DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3220
3221static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3222 [SERVICE_SIMPLE] = "simple",
0d624a78 3223 [SERVICE_FORKING] = "forking",
34e9ba66 3224 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3225 [SERVICE_DBUS] = "dbus",
3226 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3227};
3228
3229DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3230
e537352b 3231static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3232 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3233 [SERVICE_EXEC_START] = "ExecStart",
3234 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3235 [SERVICE_EXEC_RELOAD] = "ExecReload",
3236 [SERVICE_EXEC_STOP] = "ExecStop",
3237 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3238};
3239
3240DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3241
c952c6ec
LP		 3242static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3243 [NOTIFY_NONE] = "none",
3244 [NOTIFY_MAIN] = "main",
3245 [NOTIFY_ALL] = "all"
3246};
3247
3248DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3249
87f0e418 3250const UnitVTable service_vtable = {
5cb5a6ff 3251 .suffix = ".service",
9e58ff9c 3252 .show_status = true,
5cb5a6ff 3253
034c6ed7
LP		 3254 .init = service_init,
3255 .done = service_done,
a16e1123
LP		 3256 .load = service_load,
3257
3258 .coldplug = service_coldplug,
034c6ed7 3259
5cb5a6ff
LP		 3260 .dump = service_dump,
3261
3262 .start = service_start,
3263 .stop = service_stop,
3264 .reload = service_reload,
3265
034c6ed7
LP		 3266 .can_reload = service_can_reload,
3267
8a0867d6
LP		 3268 .kill = service_kill,
3269
a16e1123
LP		 3270 .serialize = service_serialize,
3271 .deserialize_item = service_deserialize_item,
3272
5cb5a6ff 3273 .active_state = service_active_state,
10a94420 3274 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3275
07459bb6 3276#ifdef HAVE_SYSV_COMPAT
701cc384 3277 .check_gc = service_check_gc,
07459bb6 3278#endif
701cc384
LP		 3279 .check_snapshot = service_check_snapshot,
3280
034c6ed7
LP		 3281 .sigchld_event = service_sigchld_event,
3282 .timer_event = service_timer_event,
2c4104f0 3283
fdf20a31 3284 .reset_failed = service_reset_failed,
5632e374 3285
8e274523 3286 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3287 .notify_message = service_notify_message,
8e274523 3288
05e343b7
LP		 3289 .bus_name_owner_change = service_bus_name_owner_change,
3290 .bus_query_pid_done = service_bus_query_pid_done,
3291
c4e2ceae 3292 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3293 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3294 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3295
07459bb6 3296#ifdef HAVE_SYSV_COMPAT
2c4104f0 3297 .enumerate = service_enumerate
07459bb6 3298#endif
5cb5a6ff 3299};
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