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unit: fix parsing of condition-result
[thirdparty/systemd.git] / src / service.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
9a57c629 37#include "exit-status.h"
f6a6225e
LP		 38#include "def.h"
39#include "util.h"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
f34277d9 42
f6a6225e 43#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
f34277d9 44
09cd1ab1
LP		 45typedef enum RunlevelType {
46 RUNLEVEL_UP,
47 RUNLEVEL_DOWN,
fc5df99e 48 RUNLEVEL_SYSINIT
09cd1ab1
LP		 49} RunlevelType;
50
51static const struct {
52 const char *path;
53 const char *target;
54 const RunlevelType type;
55} rcnd_table[] = {
9d25f5ed 56 /* Standard SysV runlevels for start-up */
514f4ef5 57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 62
d4054675 63#ifdef TARGET_SUSE
cfe243e3 64 /* SUSE style boot.d */
fc5df99e 65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 66#endif
fbe9f3a9 67
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 119 s->socket_fd = -1;
3185a36b 120 s->guess_main_pid = true;
a16e1123
LP		 121
122 exec_context_init(&s->exec_context);
0a494f1f
LP		 123 s->exec_context.std_output = u->meta.manager->default_std_output;
124 s->exec_context.std_error = u->meta.manager->default_std_error;
a16e1123
LP		 125
126 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
127
128 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
129}
130
5e94833f
LP		 131static void service_unwatch_control_pid(Service *s) {
132 assert(s);
133
134 if (s->control_pid <= 0)
135 return;
136
137 unit_unwatch_pid(UNIT(s), s->control_pid);
138 s->control_pid = 0;
139}
140
141static void service_unwatch_main_pid(Service *s) {
142 assert(s);
143
144 if (s->main_pid <= 0)
145 return;
146
147 unit_unwatch_pid(UNIT(s), s->main_pid);
148 s->main_pid = 0;
149}
150
5925dd3c 151static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 152 pid_t ppid;
153
5925dd3c
LP		 154 assert(s);
155
156 if (pid <= 1)
157 return -EINVAL;
158
159 if (pid == getpid())
160 return -EINVAL;
161
e55224ca
LP		 162 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
163 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
164 s->meta.id, (unsigned long) pid);
165
5925dd3c
LP		 166 s->main_pid = pid;
167 s->main_pid_known = true;
168
b58b4116
LP		 169 exec_status_start(&s->main_exec_status, pid);
170
5925dd3c
LP		 171 return 0;
172}
173
4f2d528d
LP		 174static void service_close_socket_fd(Service *s) {
175 assert(s);
176
177 if (s->socket_fd < 0)
178 return;
179
180 close_nointr_nofail(s->socket_fd);
181 s->socket_fd = -1;
182}
183
6cf6bbc2
LP		 184static void service_connection_unref(Service *s) {
185 assert(s);
186
f976f3f6 187 if (!s->accept_socket)
6cf6bbc2
LP		 188 return;
189
f976f3f6
LP		 190 socket_connection_unref(s->accept_socket);
191 s->accept_socket = NULL;
6cf6bbc2
LP		 192}
193
87f0e418
LP		 194static void service_done(Unit *u) {
195 Service *s = SERVICE(u);
44d8db9e
LP		 196
197 assert(s);
198
199 free(s->pid_file);
200 s->pid_file = NULL;
201
07459bb6 202#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 203 free(s->sysv_path);
204 s->sysv_path = NULL;
205
8309400a
LP		 206 free(s->sysv_runlevels);
207 s->sysv_runlevels = NULL;
07459bb6 208#endif
8309400a 209
8c47c732
LP		 210 free(s->status_text);
211 s->status_text = NULL;
212
44d8db9e 213 exec_context_done(&s->exec_context);
e537352b 214 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 215 s->control_command = NULL;
867b3b7d 216 s->main_command = NULL;
44d8db9e
LP		 217
218 /* This will leak a process, but at least no memory or any of
219 * our resources */
5e94833f
LP		 220 service_unwatch_main_pid(s);
221 service_unwatch_control_pid(s);
44d8db9e 222
05e343b7
LP		 223 if (s->bus_name) {
224 unit_unwatch_bus_name(UNIT(u), s->bus_name);
225 free(s->bus_name);
226 s->bus_name = NULL;
227 }
228
4f2d528d 229 service_close_socket_fd(s);
6cf6bbc2 230 service_connection_unref(s);
4f2d528d 231
f976f3f6
LP		 232 set_free(s->configured_sockets);
233
acbb0225 234 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 235}
236
07459bb6 237#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 238static char *sysv_translate_name(const char *name) {
239 char *r;
240
241 if (!(r = new(char, strlen(name) + sizeof(".service"))))
242 return NULL;
243
5b819198
MB		 244#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
245 if (endswith(name, ".sh"))
246 /* Drop Debian-style .sh suffix */
247 strcpy(stpcpy(r, name) - 3, ".service");
248#endif
249#ifdef TARGET_SUSE
b7ccee3c
LP		 250 if (startswith(name, "boot."))
251 /* Drop SuSE-style boot. prefix */
252 strcpy(stpcpy(r, name + 5), ".service");
5b819198 253#endif
65530632 254#ifdef TARGET_FRUGALWARE
5b819198 255 if (startswith(name, "rc."))
65530632
MV		 256 /* Drop Frugalware-style rc. prefix */
257 strcpy(stpcpy(r, name + 3), ".service");
980900c1 258#endif
b7ccee3c
LP		 259 else
260 /* Normal init scripts */
261 strcpy(stpcpy(r, name), ".service");
262
263 return r;
264}
265
ee95669f 266static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 267
a7d3cc26
LP		 268 /* We silently ignore the $ prefix here. According to the LSB
269 * spec it simply indicates whether something is a
270 * standardized name or a distribution-specific one. Since we
271 * just follow what already exists and do not introduce new
272 * uses or names we don't care who introduced a new name. */
273
2c4104f0 274 static const char * const table[] = {
6464aa08 275 /* LSB defined facilities */
a7d3cc26 276 "local_fs", SPECIAL_LOCAL_FS_TARGET,
1de4d79b
AB		 277#ifndef TARGET_MANDRIVA
278 /* Due to unfortunate name selection in Mandriva,
279 * $network is provided by network-up which is ordered
280 * after network which actually starts interfaces.
281 * To break the loop, just ignore it */
a7d3cc26 282 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 283#endif
a7d3cc26
LP		 284 "named", SPECIAL_NSS_LOOKUP_TARGET,
285 "portmap", SPECIAL_RPCBIND_TARGET,
286 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
287 "syslog", SPECIAL_SYSLOG_TARGET,
288 "time", SPECIAL_RTC_SET_TARGET,
6464aa08 289
0b603b4e
KS		 290 /* common extensions */
291 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
292 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
293 "null", NULL,
294
858dae18 295#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
a7d3cc26 296 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 297#endif
3177a49c
LP		 298
299#ifdef TARGET_FEDORA
a7d3cc26
LP		 300 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
301 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
302 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 303#endif
a7d3cc26 304
0b603b4e
KS		 305#ifdef TARGET_SUSE
306 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
307#endif
2c4104f0
LP		 308 };
309
310 unsigned i;
311 char *r;
ee95669f 312 const char *n;
2c4104f0 313
ee95669f
LP		 314 assert(name);
315 assert(_r);
a7d3cc26 316
ee95669f 317 n = *name == '$' ? name + 1 : name;
a7d3cc26 318
ee95669f 319 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 320
ee95669f
LP		 321 if (!streq(table[i], n))
322 continue;
2c4104f0 323
ee95669f
LP		 324 if (!table[i+1])
325 return 0;
326
327 if (!(r = strdup(table[i+1])))
328 return -ENOMEM;
329
330 goto finish;
331 }
2c4104f0 332
a7d3cc26 333 /* If we don't know this name, fallback heuristics to figure
0003d1ab 334 * out whether something is a target or a service alias. */
a7d3cc26 335
e83c7c0b
LP		 336 if (*name == '$') {
337 if (!unit_prefix_is_valid(n))
338 return -EINVAL;
339
ee95669f
LP		 340 /* Facilities starting with $ are most likely targets */
341 r = unit_name_build(n, NULL, ".target");
e83c7c0b 342 } else if (filename && streq(name, filename))
35b8ca3a 343 /* Names equaling the file name of the services are redundant */
ee95669f 344 return 0;
32159d3a 345 else
ee95669f
LP		 346 /* Everything else we assume to be normal service names */
347 r = sysv_translate_name(n);
2c4104f0 348
32159d3a 349 if (!r)
2c4104f0
LP		 350 return -ENOMEM;
351
352finish:
b4353094 353 *_r = r;
2c4104f0
LP		 354
355 return 1;
356}
357
56d748b4 358static int sysv_fix_order(Service *s) {
2c4104f0
LP		 359 Meta *other;
360 int r;
361
362 assert(s);
363
364 if (s->sysv_start_priority < 0)
365 return 0;
366
23a177ef
LP		 367 /* For each pair of services where at least one lacks a LSB
368 * header, we use the start priority value to order things. */
2c4104f0 369
4cd1fbcc 370 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 371 Service *t;
372 UnitDependency d;
eeaafddc 373 bool special_s, special_t;
2c4104f0
LP		 374
375 t = (Service*) other;
376
377 if (s == t)
378 continue;
9f151f29
LP		 379
380 if (t->meta.load_state != UNIT_LOADED)
381 continue;
2c4104f0
LP		 382
383 if (t->sysv_start_priority < 0)
384 continue;
385
51a1a79d
LP		 386 /* If both units have modern headers we don't care
387 * about the priorities */
f21781d5
LP		 388 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
389 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 390 continue;
391
eeaafddc
LP		 392 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
393 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
394
395 if (special_t && !special_s)
396 d = UNIT_AFTER;
397 else if (special_s && !special_t)
398 d = UNIT_BEFORE;
399 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 400 d = UNIT_AFTER;
401 else if (t->sysv_start_priority > s->sysv_start_priority)
402 d = UNIT_BEFORE;
403 else
404 continue;
405
406 /* FIXME: Maybe we should compare the name here lexicographically? */
407
701cc384 408 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 409 return r;
410 }
411
412 return 0;
413}
414
415static ExecCommand *exec_command_new(const char *path, const char *arg1) {
416 ExecCommand *c;
417
418 if (!(c = new0(ExecCommand, 1)))
419 return NULL;
420
421 if (!(c->path = strdup(path))) {
422 free(c);
423 return NULL;
424 }
425
426 if (!(c->argv = strv_new(path, arg1, NULL))) {
427 free(c->path);
428 free(c);
429 return NULL;
430 }
431
432 return c;
433}
434
435static int sysv_exec_commands(Service *s) {
436 ExecCommand *c;
437
438 assert(s);
439 assert(s->sysv_path);
440
441 if (!(c = exec_command_new(s->sysv_path, "start")))
442 return -ENOMEM;
443 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
444
445 if (!(c = exec_command_new(s->sysv_path, "stop")))
446 return -ENOMEM;
447 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
448
449 if (!(c = exec_command_new(s->sysv_path, "reload")))
450 return -ENOMEM;
451 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
452
453 return 0;
454}
455
e537352b 456static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 457 FILE *f;
458 Unit *u;
459 unsigned line = 0;
460 int r;
461 enum {
462 NORMAL,
463 DESCRIPTION,
464 LSB,
465 LSB_DESCRIPTION
466 } state = NORMAL;
0b5d26f9 467 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 468
469 assert(s);
470 assert(path);
2c4104f0
LP		 471
472 u = UNIT(s);
473
474 if (!(f = fopen(path, "re"))) {
475 r = errno == ENOENT ? 0 : -errno;
476 goto finish;
477 }
478
2c4104f0
LP		 479 free(s->sysv_path);
480 if (!(s->sysv_path = strdup(path))) {
481 r = -ENOMEM;
482 goto finish;
483 }
484
485 while (!feof(f)) {
486 char l[LINE_MAX], *t;
487
488 if (!fgets(l, sizeof(l), f)) {
489 if (feof(f))
490 break;
491
492 r = -errno;
493 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
494 goto finish;
495 }
496
497 line++;
498
499 t = strstrip(l);
500 if (*t != '#')
501 continue;
502
503 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
504 state = LSB;
23a177ef 505 s->sysv_has_lsb = true;
2c4104f0
LP		 506 continue;
507 }
508
509 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
510 state = NORMAL;
511 continue;
512 }
513
514 t++;
515 t += strspn(t, WHITESPACE);
516
517 if (state == NORMAL) {
518
519 /* Try to parse Red Hat style chkconfig headers */
520
c2b35af6 521 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 522 int start_priority;
8309400a 523 char runlevels[16], *k;
2c4104f0
LP		 524
525 state = NORMAL;
526
8309400a
LP		 527 if (sscanf(t+10, "%15s %i %*i",
528 runlevels,
529 &start_priority) != 2) {
2c4104f0
LP		 530
531 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
532 continue;
533 }
534
fbe9f3a9
LP		 535 /* A start priority gathered from the
536 * symlink farms is preferred over the
537 * data from the LSB header. */
8309400a 538 if (start_priority < 0 || start_priority > 99)
2c4104f0 539 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 540 else if (s->sysv_start_priority < 0)
8309400a
LP		 541 s->sysv_start_priority = start_priority;
542
543 char_array_0(runlevels);
544 k = delete_chars(runlevels, WHITESPACE "-");
545
546 if (k[0]) {
547 char *d;
548
549 if (!(d = strdup(k))) {
550 r = -ENOMEM;
551 goto finish;
552 }
553
554 free(s->sysv_runlevels);
555 s->sysv_runlevels = d;
2c4104f0
LP		 556 }
557
0b5d26f9 558 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 559
560 size_t k = strlen(t);
561 char *d;
0b5d26f9 562 const char *j;
2c4104f0
LP		 563
564 if (t[k-1] == '\\') {
565 state = DESCRIPTION;
566 t[k-1] = 0;
567 }
568
0b5d26f9
LP		 569 if ((j = strstrip(t+12)) && *j) {
570 if (!(d = strdup(j))) {
571 r = -ENOMEM;
572 goto finish;
573 }
574 } else
575 d = NULL;
2c4104f0 576
0b5d26f9
LP		 577 free(chkconfig_description);
578 chkconfig_description = d;
2c4104f0 579
c2b35af6 580 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 581
582 char *fn;
583
584 state = NORMAL;
585
586 fn = strstrip(t+8);
587 if (!path_is_absolute(fn)) {
588 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
589 continue;
590 }
591
592 if (!(fn = strdup(fn))) {
593 r = -ENOMEM;
594 goto finish;
595 }
596
597 free(s->pid_file);
598 s->pid_file = fn;
599 }
600
601 } else if (state == DESCRIPTION) {
602
603 /* Try to parse Red Hat style description
604 * continuation */
605
606 size_t k = strlen(t);
0b5d26f9 607 char *j;
2c4104f0
LP		 608
609 if (t[k-1] == '\\')
610 t[k-1] = 0;
611 else
612 state = NORMAL;
613
0b5d26f9
LP		 614 if ((j = strstrip(t)) && *j) {
615 char *d = NULL;
616
617 if (chkconfig_description)
618 asprintf(&d, "%s %s", chkconfig_description, j);
619 else
620 d = strdup(j);
2c4104f0 621
0b5d26f9
LP		 622 if (!d) {
623 r = -ENOMEM;
624 goto finish;
625 }
626
627 free(chkconfig_description);
628 chkconfig_description = d;
629 }
2c4104f0
LP		 630
631 } else if (state == LSB || state == LSB_DESCRIPTION) {
632
c2b35af6 633 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 634 char *i, *w;
635 size_t z;
636
637 state = LSB;
638
f60f22df 639 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 640 char *n, *m;
641
642 if (!(n = strndup(w, z))) {
643 r = -ENOMEM;
644 goto finish;
645 }
646
ee95669f 647 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 648 free(n);
649
650 if (r < 0)
651 goto finish;
652
653 if (r == 0)
654 continue;
655
bd77d0fc
LP		 656 if (unit_name_to_type(m) == UNIT_SERVICE)
657 r = unit_add_name(u, m);
9700edb4
LP		 658 else
659 /* NB: SysV targets
660 * which are provided
661 * by a service are
662 * pulled in by the
663 * services, as an
664 * indication that the
665 * generic service is
666 * now available. This
667 * is strictly
668 * one-way. The
669 * targets do NOT pull
670 * in the SysV
671 * services! */
672 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 673
2c4104f0 674 if (r < 0)
43a37549 675 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 676
677 free(m);
2c4104f0
LP		 678 }
679
c2b35af6
LP		 680 } else if (startswith_no_case(t, "Required-Start:") ||
681 startswith_no_case(t, "Should-Start:") ||
682 startswith_no_case(t, "X-Start-Before:") ||
683 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 684 char *i, *w;
685 size_t z;
686
687 state = LSB;
688
f60f22df 689 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 690 char *n, *m;
691
692 if (!(n = strndup(w, z))) {
693 r = -ENOMEM;
694 goto finish;
695 }
696
ee95669f 697 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 698
e83c7c0b
LP		 699 if (r < 0) {
700 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
701 free(n);
702 continue;
703 }
704
705 free(n);
2c4104f0
LP		 706
707 if (r == 0)
708 continue;
709
c2b35af6 710 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 711
712 if (r < 0)
43a37549 713 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 714
715 free(m);
2c4104f0 716 }
c2b35af6 717 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 718 char *k, *d;
719
720 state = LSB;
721
722 k = delete_chars(t+14, WHITESPACE "-");
723
724 if (k[0] != 0) {
725 if (!(d = strdup(k))) {
726 r = -ENOMEM;
727 goto finish;
728 }
729
730 free(s->sysv_runlevels);
731 s->sysv_runlevels = d;
732 }
2c4104f0 733
0b5d26f9
LP		 734 } else if (startswith_no_case(t, "Description:")) {
735 char *d, *j;
ed4c1cc6 736
2c4104f0
LP		 737 state = LSB_DESCRIPTION;
738
0b5d26f9
LP		 739 if ((j = strstrip(t+12)) && *j) {
740 if (!(d = strdup(j))) {
741 r = -ENOMEM;
742 goto finish;
743 }
744 } else
745 d = NULL;
2c4104f0 746
0b5d26f9
LP		 747 free(long_description);
748 long_description = d;
2c4104f0 749
ed4c1cc6 750 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 751 char *d, *j;
2c4104f0 752
2c4104f0
LP		 753 state = LSB;
754
0b5d26f9
LP		 755 if ((j = strstrip(t+18)) && *j) {
756 if (!(d = strdup(j))) {
757 r = -ENOMEM;
758 goto finish;
759 }
760 } else
761 d = NULL;
2c4104f0 762
0b5d26f9
LP		 763 free(short_description);
764 short_description = d;
2c4104f0 765
723c83fd
LP		 766 } else if (startswith_no_case(t, "X-Interactive:")) {
767 int b;
768
769 if ((b = parse_boolean(strstrip(t+14))) < 0) {
770 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
771 continue;
772 }
773
774 if (b)
775 s->exec_context.std_input = EXEC_INPUT_TTY;
776 else
777 s->exec_context.std_input = EXEC_INPUT_NULL;
778
2c4104f0
LP		 779 } else if (state == LSB_DESCRIPTION) {
780
781 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 782 char *j;
2c4104f0 783
0b5d26f9
LP		 784 if ((j = strstrip(t)) && *j) {
785 char *d = NULL;
786
787 if (long_description)
788 asprintf(&d, "%s %s", long_description, t);
789 else
790 d = strdup(j);
791
792 if (!d) {
793 r = -ENOMEM;
794 goto finish;
795 }
796
797 free(long_description);
798 long_description = d;
2c4104f0
LP		 799 }
800
2c4104f0
LP		 801 } else
802 state = LSB;
803 }
804 }
805 }
806
2c4104f0
LP		 807 if ((r = sysv_exec_commands(s)) < 0)
808 goto finish;
809
a40eb732 810 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 811 /* If there a runlevels configured for this service
812 * but none of the standard ones, then we assume this
813 * is some special kind of service (which might be
814 * needed for early boot) and don't create any links
815 * to it. */
816
a40eb732 817 s->meta.default_dependencies = false;
09cd1ab1 818
09cd1ab1
LP		 819 /* Don't timeout special services during boot (like fsck) */
820 s->timeout_usec = 0;
f34277d9
LP		 821 } else
822 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 823
80876c20 824 /* Special setting for all SysV services */
1f48cf56 825 s->type = SERVICE_FORKING;
02ee865a 826 s->remain_after_exit = true;
525ee6f4 827 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 828 s->exec_context.std_output =
829 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
0a494f1f 830 ? EXEC_OUTPUT_TTY : s->meta.manager->default_std_output;
cd25cce9 831 s->exec_context.kill_mode = KILL_PROCESS;
80876c20 832
0b5d26f9
LP		 833 /* We use the long description only if
834 * no short description is set. */
835
836 if (short_description)
837 description = short_description;
838 else if (chkconfig_description)
839 description = chkconfig_description;
840 else if (long_description)
841 description = long_description;
842 else
843 description = NULL;
844
845 if (description) {
846 char *d;
847
e527618d 848 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 849 r = -ENOMEM;
850 goto finish;
851 }
852
853 u->meta.description = d;
854 }
855
e537352b 856 u->meta.load_state = UNIT_LOADED;
23a177ef 857 r = 0;
2c4104f0
LP		 858
859finish:
860
861 if (f)
862 fclose(f);
863
0b5d26f9
LP		 864 free(short_description);
865 free(long_description);
866 free(chkconfig_description);
867
2c4104f0
LP		 868 return r;
869}
870
e537352b 871static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 872 char **p;
873
874 assert(s);
875 assert(name);
876
e1992852 877 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 878 * prefixes/suffixes. */
5b819198
MB		 879#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
880 if (endswith(name, ".sh.service"))
d017c6ca 881 return -ENOENT;
5b819198
MB		 882#endif
883
884#ifdef TARGET_SUSE
885 if (startswith(name, "boot."))
886 return -ENOENT;
887#endif
888
889#ifdef TARGET_FRUGALWARE
890 if (startswith(name, "rc."))
891 return -ENOENT;
892#endif
d017c6ca 893
4cd1fbcc 894 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 895 char *path;
896 int r;
897
898 if (asprintf(&path, "%s/%s", *p, name) < 0)
899 return -ENOMEM;
900
901 assert(endswith(path, ".service"));
902 path[strlen(path)-8] = 0;
903
e537352b 904 r = service_load_sysv_path(s, path);
fbe9f3a9 905
e1992852 906#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
4cd1fbcc 907 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 908 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 909 strcat(path, ".sh");
910 r = service_load_sysv_path(s, path);
911 }
e1992852 912#endif
2c4104f0
LP		 913 free(path);
914
e1992852 915#ifdef TARGET_SUSE
4cd1fbcc 916 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 917 /* Try SUSE style boot.* init scripts */
fbe9f3a9
LP		 918
919 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
920 return -ENOMEM;
921
e1992852 922 /* Drop .service suffix */
fbe9f3a9
LP		 923 path[strlen(path)-8] = 0;
924 r = service_load_sysv_path(s, path);
925 free(path);
926 }
e1992852 927#endif
fbe9f3a9 928
e1992852 929#ifdef TARGET_FRUGALWARE
65530632 930 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 931 /* Try Frugalware style rc.* init scripts */
65530632
MV		 932
933 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
934 return -ENOMEM;
935
e1992852 936 /* Drop .service suffix */
65530632
MV		 937 path[strlen(path)-8] = 0;
938 r = service_load_sysv_path(s, path);
939 free(path);
940 }
e1992852 941#endif
65530632 942
23a177ef 943 if (r < 0)
2c4104f0 944 return r;
23a177ef 945
4cd1fbcc 946 if ((s->meta.load_state != UNIT_STUB))
23a177ef 947 break;
2c4104f0
LP		 948 }
949
950 return 0;
951}
952
e537352b 953static int service_load_sysv(Service *s) {
2c4104f0
LP		 954 const char *t;
955 Iterator i;
956 int r;
957
5cb5a6ff
LP		 958 assert(s);
959
960 /* Load service data from SysV init scripts, preferably with
961 * LSB headers ... */
962
4cd1fbcc 963 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 964 return 0;
965
4cd1fbcc 966 if ((t = s->meta.id))
e537352b 967 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 968 return r;
969
4cd1fbcc
LP		 970 if (s->meta.load_state == UNIT_STUB)
971 SET_FOREACH(t, s->meta.names, i) {
972 if (t == s->meta.id)
e537352b
LP		 973 continue;
974
e364ad06 975 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 976 return r;
977
4cd1fbcc 978 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 979 break;
980 }
2c4104f0
LP		 981
982 return 0;
5cb5a6ff 983}
07459bb6 984#endif
5cb5a6ff 985
9fff8a1f
LP		 986static int fsck_fix_order(Service *s) {
987 Meta *other;
988 int r;
989
990 assert(s);
991
992 if (s->fsck_passno <= 0)
993 return 0;
994
995 /* For each pair of services where both have an fsck priority
996 * we order things based on it. */
997
998 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
999 Service *t;
1000 UnitDependency d;
1001
1002 t = (Service*) other;
1003
1004 if (s == t)
1005 continue;
1006
1007 if (t->meta.load_state != UNIT_LOADED)
1008 continue;
1009
1010 if (t->fsck_passno <= 0)
1011 continue;
1012
1013 if (t->fsck_passno < s->fsck_passno)
1014 d = UNIT_AFTER;
1015 else if (t->fsck_passno > s->fsck_passno)
1016 d = UNIT_BEFORE;
1017 else
1018 continue;
1019
1020 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1021 return r;
1022 }
1023
1024 return 0;
1025}
1026
243b1432
LP		 1027static int service_verify(Service *s) {
1028 assert(s);
1029
4cd1fbcc 1030 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1031 return 0;
1032
1033 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1034 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1035 return -EINVAL;
1036 }
1037
34e9ba66
LP		 1038 if (s->type != SERVICE_ONESHOT &&
1039 s->exec_command[SERVICE_EXEC_START]->command_next) {
1040 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1041 return -EINVAL;
1042 }
1043
c06b7a15
LP		 1044 if (s->type == SERVICE_ONESHOT &&
1045 s->exec_command[SERVICE_EXEC_RELOAD]) {
1046 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1047 return -EINVAL;
1048 }
1049
05e343b7 1050 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1051 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1052 return -EINVAL;
1053 }
1054
2e22afe9 1055 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1056 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1057 return -EINVAL;
1058 }
1059
243b1432
LP		 1060 return 0;
1061}
1062
a40eb732
LP		 1063static int service_add_default_dependencies(Service *s) {
1064 int r;
1065
1066 assert(s);
1067
1068 /* Add a number of automatic dependencies useful for the
1069 * majority of services. */
1070
1071 /* First, pull in base system */
1072 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1073
1074 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1075 return r;
1076
af2d49f7 1077 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1078
1079 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1080 return r;
1081 }
1082
1083 /* Second, activate normal shutdown */
ead8e478 1084 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1085}
1086
e537352b
LP		 1087static int service_load(Unit *u) {
1088 int r;
1089 Service *s = SERVICE(u);
1090
1091 assert(s);
1e2e8133 1092
5cb5a6ff 1093 /* Load a .service file */
e537352b 1094 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1095 return r;
1096
07459bb6 1097#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1098 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1099 if (u->meta.load_state == UNIT_STUB)
1100 if ((r = service_load_sysv(s)) < 0)
23a177ef 1101 return r;
07459bb6 1102#endif
d46de8a1 1103
23a177ef 1104 /* Still nothing found? Then let's give up */
e537352b 1105 if (u->meta.load_state == UNIT_STUB)
23a177ef 1106 return -ENOENT;
034c6ed7 1107
23a177ef
LP		 1108 /* We were able to load something, then let's add in the
1109 * dropin directories. */
1110 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1111 return r;
23a177ef
LP		 1112
1113 /* This is a new unit? Then let's add in some extras */
e537352b 1114 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1115 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1116 return r;
1117
d686d8a9 1118 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1119 return r;
1120
07459bb6 1121#ifdef HAVE_SYSV_COMPAT
56d748b4 1122 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1123 return r;
07459bb6 1124#endif
05e343b7 1125
9fff8a1f
LP		 1126 if ((r = fsck_fix_order(s)) < 0)
1127 return r;
1128
ee0dd802 1129 if (s->bus_name)
05e343b7 1130 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1131 return r;
c952c6ec
LP		 1132
1133 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1134 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1135
1136 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1137 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1138 return r;
1139
1140 if (s->meta.default_dependencies)
1141 if ((r = service_add_default_dependencies(s)) < 0)
1142 return r;
8e274523
LP		 1143 }
1144
243b1432 1145 return service_verify(s);
034c6ed7
LP		 1146}
1147
87f0e418 1148static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1149
5cb5a6ff 1150 ServiceExecCommand c;
87f0e418 1151 Service *s = SERVICE(u);
47be870b
LP		 1152 const char *prefix2;
1153 char *p2;
5cb5a6ff
LP		 1154
1155 assert(s);
1156
47be870b
LP		 1157 p2 = strappend(prefix, "\t");
1158 prefix2 = p2 ? p2 : prefix;
44d8db9e 1159
5cb5a6ff 1160 fprintf(f,
81a2b7ce
LP		 1161 "%sService State: %s\n"
1162 "%sPermissionsStartOnly: %s\n"
8e274523 1163 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1164 "%sRemainAfterExit: %s\n"
3185a36b 1165 "%sGuessMainPID: %s\n"
c952c6ec 1166 "%sType: %s\n"
2cf3143a 1167 "%sRestart: %s\n"
c952c6ec 1168 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1169 prefix, service_state_to_string(s->state),
1170 prefix, yes_no(s->permissions_start_only),
8e274523 1171 prefix, yes_no(s->root_directory_start_only),
02ee865a 1172 prefix, yes_no(s->remain_after_exit),
3185a36b 1173 prefix, yes_no(s->guess_main_pid),
c952c6ec 1174 prefix, service_type_to_string(s->type),
2cf3143a 1175 prefix, service_restart_to_string(s->restart),
c952c6ec 1176 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1177
70123e68
LP		 1178 if (s->control_pid > 0)
1179 fprintf(f,
bb00e604
LP		 1180 "%sControl PID: %lu\n",
1181 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1182
1183 if (s->main_pid > 0)
1184 fprintf(f,
bb00e604
LP		 1185 "%sMain PID: %lu\n",
1186 prefix, (unsigned long) s->main_pid);
70123e68 1187
034c6ed7
LP		 1188 if (s->pid_file)
1189 fprintf(f,
1190 "%sPIDFile: %s\n",
1191 prefix, s->pid_file);
1192
05e343b7
LP		 1193 if (s->bus_name)
1194 fprintf(f,
1195 "%sBusName: %s\n"
1196 "%sBus Name Good: %s\n",
1197 prefix, s->bus_name,
1198 prefix, yes_no(s->bus_name_good));
1199
5cb5a6ff
LP		 1200 exec_context_dump(&s->exec_context, f, prefix);
1201
e537352b 1202 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1203
44d8db9e
LP		 1204 if (!s->exec_command[c])
1205 continue;
1206
40d50879 1207 fprintf(f, "%s-> %s:\n",
94f04347 1208 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1209
1210 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1211 }
44d8db9e 1212
07459bb6 1213#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1214 if (s->sysv_path)
1215 fprintf(f,
23a177ef 1216 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1217 "%sSysV Init Script has LSB Header: %s\n"
1218 "%sSysVEnabled: %s\n",
23a177ef 1219 prefix, s->sysv_path,
9fff8a1f
LP		 1220 prefix, yes_no(s->sysv_has_lsb),
1221 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1222
1223 if (s->sysv_start_priority >= 0)
1224 fprintf(f,
9fff8a1f
LP		 1225 "%sSysVStartPriority: %i\n",
1226 prefix, s->sysv_start_priority);
2c4104f0 1227
8309400a
LP		 1228 if (s->sysv_runlevels)
1229 fprintf(f, "%sSysVRunLevels: %s\n",
1230 prefix, s->sysv_runlevels);
07459bb6 1231#endif
23a177ef 1232
9fff8a1f
LP		 1233 if (s->fsck_passno > 0)
1234 fprintf(f,
1235 "%sFsckPassNo: %i\n",
1236 prefix, s->fsck_passno);
1237
8c47c732
LP		 1238 if (s->status_text)
1239 fprintf(f, "%sStatus Text: %s\n",
1240 prefix, s->status_text);
1241
47be870b 1242 free(p2);
5cb5a6ff
LP		 1243}
1244
034c6ed7
LP		 1245static int service_load_pid_file(Service *s) {
1246 char *k;
034c6ed7 1247 int r;
5925dd3c 1248 pid_t pid;
034c6ed7
LP		 1249
1250 assert(s);
1251
034c6ed7
LP		 1252 if (!s->pid_file)
1253 return -ENOENT;
1254
1255 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1256 return r;
1257
5925dd3c
LP		 1258 r = parse_pid(k, &pid);
1259 free(k);
034c6ed7 1260
5925dd3c
LP		 1261 if (r < 0)
1262 return r;
406eaf93 1263
5925dd3c
LP		 1264 if (kill(pid, 0) < 0 && errno != EPERM) {
1265 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1266 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1267 return -ESRCH;
1268 }
1269
5925dd3c 1270 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1271 return r;
1272
5925dd3c
LP		 1273 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1274 /* FIXME: we need to do something here */
1275 return r;
034c6ed7
LP		 1276
1277 return 0;
1278}
1279
4fbf50b3
LP		 1280static int service_search_main_pid(Service *s) {
1281 pid_t pid;
1282 int r;
1283
1284 assert(s);
1285
3185a36b
LP		 1286 /* If we know it anyway, don't ever fallback to unreliable
1287 * heuristics */
4fbf50b3
LP		 1288 if (s->main_pid_known)
1289 return 0;
1290
3185a36b
LP		 1291 if (!s->guess_main_pid)
1292 return 0;
1293
4fbf50b3
LP		 1294 assert(s->main_pid <= 0);
1295
1296 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1297 return -ENOENT;
1298
1299 if ((r = service_set_main_pid(s, pid)) < 0)
1300 return r;
1301
1302 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1303 /* FIXME: we need to do something here */
1304 return r;
1305
1306 return 0;
1307}
1308
3e33402a
LP		 1309static int service_get_sockets(Service *s, Set **_set) {
1310 Set *set;
ceee3d82
LP		 1311 Iterator i;
1312 char *t;
3e33402a 1313 int r;
ceee3d82
LP		 1314
1315 assert(s);
3e33402a
LP		 1316 assert(_set);
1317
6cf6bbc2
LP		 1318 if (s->socket_fd >= 0)
1319 return 0;
1320
f976f3f6
LP		 1321 if (!set_isempty(s->configured_sockets))
1322 return 0;
1323
3e33402a
LP		 1324 /* Collects all Socket objects that belong to this
1325 * service. Note that a service might have multiple sockets
1326 * via multiple names. */
1327
1328 if (!(set = set_new(NULL, NULL)))
1329 return -ENOMEM;
ceee3d82 1330
4cd1fbcc 1331 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1332 char *k;
1333 Unit *p;
1334
1335 /* Look for all socket objects that go by any of our
1336 * units and collect their fds */
1337
3e33402a
LP		 1338 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1339 r = -ENOMEM;
1340 goto fail;
1341 }
ceee3d82 1342
4cd1fbcc 1343 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1344 free(k);
1345
8d567588
LP		 1346 if (!p)
1347 continue;
ceee3d82 1348
3e33402a
LP		 1349 if ((r = set_put(set, p)) < 0)
1350 goto fail;
ceee3d82
LP		 1351 }
1352
3e33402a
LP		 1353 *_set = set;
1354 return 0;
1355
1356fail:
1357 set_free(set);
1358 return r;
1359}
1360
e537352b 1361static int service_notify_sockets_dead(Service *s) {
3e33402a 1362 Iterator i;
f976f3f6 1363 Set *set, *free_set = NULL;
47be870b 1364 Socket *sock;
3e33402a
LP		 1365 int r;
1366
1367 assert(s);
1368
f976f3f6
LP		 1369 /* Notifies all our sockets when we die */
1370
6cf6bbc2
LP		 1371 if (s->socket_fd >= 0)
1372 return 0;
1373
f976f3f6
LP		 1374 if (!set_isempty(s->configured_sockets))
1375 set = s->configured_sockets;
1376 else {
1377 if ((r = service_get_sockets(s, &free_set)) < 0)
1378 return r;
1379
1380 set = free_set;
1381 }
3e33402a 1382
47be870b
LP		 1383 SET_FOREACH(sock, set, i)
1384 socket_notify_service_dead(sock);
3e33402a 1385
f976f3f6 1386 set_free(free_set);
3e33402a 1387
ceee3d82
LP		 1388 return 0;
1389}
1390
034c6ed7
LP		 1391static void service_set_state(Service *s, ServiceState state) {
1392 ServiceState old_state;
5cb5a6ff
LP		 1393 assert(s);
1394
034c6ed7 1395 old_state = s->state;
5cb5a6ff 1396 s->state = state;
034c6ed7
LP		 1397
1398 if (state != SERVICE_START_PRE &&
1399 state != SERVICE_START &&
1400 state != SERVICE_START_POST &&
1401 state != SERVICE_RELOAD &&
1402 state != SERVICE_STOP &&
1403 state != SERVICE_STOP_SIGTERM &&
1404 state != SERVICE_STOP_SIGKILL &&
1405 state != SERVICE_STOP_POST &&
1406 state != SERVICE_FINAL_SIGTERM &&
1407 state != SERVICE_FINAL_SIGKILL &&
1408 state != SERVICE_AUTO_RESTART)
acbb0225 1409 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1410
7d55e835
LP		 1411 if (state != SERVICE_START &&
1412 state != SERVICE_START_POST &&
034c6ed7
LP		 1413 state != SERVICE_RUNNING &&
1414 state != SERVICE_RELOAD &&
1415 state != SERVICE_STOP &&
1416 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1417 state != SERVICE_STOP_SIGKILL) {
5e94833f 1418 service_unwatch_main_pid(s);
867b3b7d
LP		 1419 s->main_command = NULL;
1420 }
034c6ed7
LP		 1421
1422 if (state != SERVICE_START_PRE &&
1423 state != SERVICE_START &&
1424 state != SERVICE_START_POST &&
1425 state != SERVICE_RELOAD &&
1426 state != SERVICE_STOP &&
1427 state != SERVICE_STOP_SIGTERM &&
1428 state != SERVICE_STOP_SIGKILL &&
1429 state != SERVICE_STOP_POST &&
1430 state != SERVICE_FINAL_SIGTERM &&
e537352b 1431 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1432 service_unwatch_control_pid(s);
034c6ed7 1433 s->control_command = NULL;
a16e1123 1434 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1435 }
034c6ed7 1436
ceee3d82
LP		 1437 if (state == SERVICE_DEAD ||
1438 state == SERVICE_STOP ||
1439 state == SERVICE_STOP_SIGTERM ||
1440 state == SERVICE_STOP_SIGKILL ||
1441 state == SERVICE_STOP_POST ||
1442 state == SERVICE_FINAL_SIGTERM ||
1443 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1444 state == SERVICE_FAILED ||
ceee3d82 1445 state == SERVICE_AUTO_RESTART)
e537352b 1446 service_notify_sockets_dead(s);
ceee3d82 1447
4f2d528d
LP		 1448 if (state != SERVICE_START_PRE &&
1449 state != SERVICE_START &&
6cf6bbc2
LP		 1450 state != SERVICE_START_POST &&
1451 state != SERVICE_RUNNING &&
1452 state != SERVICE_RELOAD &&
1453 state != SERVICE_STOP &&
1454 state != SERVICE_STOP_SIGTERM &&
1455 state != SERVICE_STOP_SIGKILL &&
1456 state != SERVICE_STOP_POST &&
1457 state != SERVICE_FINAL_SIGTERM &&
1458 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1459 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1460 service_close_socket_fd(s);
6cf6bbc2
LP		 1461 service_connection_unref(s);
1462 }
4f2d528d 1463
f6023656
LP		 1464 /* For the inactive states unit_notify() will trim the cgroup,
1465 * but for exit we have to do that ourselves... */
1466 if (state == SERVICE_EXITED)
1467 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1468
e537352b 1469 if (old_state != state)
4cd1fbcc 1470 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1471
e2f3b44c
LP		 1472 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1473 s->reload_failure = false;
034c6ed7
LP		 1474}
1475
a16e1123
LP		 1476static int service_coldplug(Unit *u) {
1477 Service *s = SERVICE(u);
1478 int r;
1479
1480 assert(s);
1481 assert(s->state == SERVICE_DEAD);
1482
1483 if (s->deserialized_state != s->state) {
1484
1485 if (s->deserialized_state == SERVICE_START_PRE ||
1486 s->deserialized_state == SERVICE_START ||
1487 s->deserialized_state == SERVICE_START_POST ||
1488 s->deserialized_state == SERVICE_RELOAD ||
1489 s->deserialized_state == SERVICE_STOP ||
1490 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1491 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1492 s->deserialized_state == SERVICE_STOP_POST ||
1493 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1494 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1495 s->deserialized_state == SERVICE_AUTO_RESTART) {
1496
1497 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1498 usec_t k;
1499
1500 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1501
1502 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1503 return r;
1504 }
1505 }
a16e1123
LP		 1506
1507 if ((s->deserialized_state == SERVICE_START &&
1508 (s->type == SERVICE_FORKING ||
8c47c732 1509 s->type == SERVICE_DBUS ||
34e9ba66 1510 s->type == SERVICE_ONESHOT ||
8c47c732 1511 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1512 s->deserialized_state == SERVICE_START_POST ||
1513 s->deserialized_state == SERVICE_RUNNING ||
1514 s->deserialized_state == SERVICE_RELOAD ||
1515 s->deserialized_state == SERVICE_STOP ||
1516 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1517 s->deserialized_state == SERVICE_STOP_SIGKILL)
1518 if (s->main_pid > 0)
1519 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1520 return r;
1521
1522 if (s->deserialized_state == SERVICE_START_PRE ||
1523 s->deserialized_state == SERVICE_START ||
1524 s->deserialized_state == SERVICE_START_POST ||
1525 s->deserialized_state == SERVICE_RELOAD ||
1526 s->deserialized_state == SERVICE_STOP ||
1527 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1528 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1529 s->deserialized_state == SERVICE_STOP_POST ||
1530 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1531 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1532 if (s->control_pid > 0)
1533 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1534 return r;
1535
1536 service_set_state(s, s->deserialized_state);
1537 }
1538
1539 return 0;
1540}
1541
44d8db9e
LP		 1542static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1543 Iterator i;
1544 int r;
1545 int *rfds = NULL;
1546 unsigned rn_fds = 0;
f976f3f6 1547 Set *set, *free_set = NULL;
47be870b 1548 Socket *sock;
44d8db9e
LP		 1549
1550 assert(s);
1551 assert(fds);
1552 assert(n_fds);
1553
6cf6bbc2
LP		 1554 if (s->socket_fd >= 0)
1555 return 0;
1556
f976f3f6
LP		 1557 if (!set_isempty(s->configured_sockets))
1558 set = s->configured_sockets;
1559 else {
1560 if ((r = service_get_sockets(s, &free_set)) < 0)
1561 return r;
1562
1563 set = free_set;
1564 }
3e33402a 1565
47be870b 1566 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1567 int *cfds;
1568 unsigned cn_fds;
1569
47be870b 1570 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1571 goto fail;
1572
1573 if (!cfds)
1574 continue;
1575
1576 if (!rfds) {
1577 rfds = cfds;
1578 rn_fds = cn_fds;
1579 } else {
1580 int *t;
1581
1582 if (!(t = new(int, rn_fds+cn_fds))) {
1583 free(cfds);
1584 r = -ENOMEM;
1585 goto fail;
1586 }
1587
1588 memcpy(t, rfds, rn_fds);
1589 memcpy(t+rn_fds, cfds, cn_fds);
1590 free(rfds);
1591 free(cfds);
1592
1593 rfds = t;
1594 rn_fds = rn_fds+cn_fds;
1595 }
1596 }
1597
1598 *fds = rfds;
1599 *n_fds = rn_fds;
3e33402a 1600
f976f3f6 1601 set_free(free_set);
3e33402a 1602
44d8db9e
LP		 1603 return 0;
1604
1605fail:
3e33402a 1606 set_free(set);
44d8db9e 1607 free(rfds);
3e33402a 1608
44d8db9e
LP		 1609 return r;
1610}
1611
81a2b7ce
LP		 1612static int service_spawn(
1613 Service *s,
1614 ExecCommand *c,
1615 bool timeout,
1616 bool pass_fds,
1617 bool apply_permissions,
1618 bool apply_chroot,
1e3ad081 1619 bool apply_tty_stdin,
c952c6ec 1620 bool set_notify_socket,
81a2b7ce
LP		 1621 pid_t *_pid) {
1622
034c6ed7
LP		 1623 pid_t pid;
1624 int r;
6cf6bbc2 1625 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1626 unsigned n_fds = 0, n_env = 0;
1627 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1628
1629 assert(s);
1630 assert(c);
1631 assert(_pid);
1632
6cf6bbc2
LP		 1633 if (pass_fds ||
1634 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1635 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1636 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1637
4f2d528d
LP		 1638 if (s->socket_fd >= 0) {
1639 fds = &s->socket_fd;
1640 n_fds = 1;
6cf6bbc2
LP		 1641 } else {
1642 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1643 goto fail;
1644
1645 fds = fdsbuf;
1646 }
4f2d528d 1647 }
44d8db9e 1648
e558336f 1649 if (timeout && s->timeout_usec) {
acbb0225 1650 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1651 goto fail;
1652 } else
acbb0225 1653 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1654
9e2f7c11
LP		 1655 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1656 r = -ENOMEM;
1657 goto fail;
1658 }
1659
9865f3b4 1660 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1661 r = -ENOMEM;
1662 goto fail;
1663 }
c952c6ec 1664
2105e76a 1665 if (set_notify_socket)
91b22f21 1666 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1667 r = -ENOMEM;
1668 goto fail;
1669 }
1670
2105e76a
LP		 1671 if (s->main_pid > 0)
1672 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1673 r = -ENOMEM;
1674 goto fail;
1675 }
2105e76a
LP		 1676
1677 if (!(final_env = strv_env_merge(2,
1678 s->meta.manager->environment,
1679 our_env,
1680 NULL))) {
1681 r = -ENOMEM;
1682 goto fail;
1683 }
c952c6ec 1684
9e2f7c11
LP		 1685 r = exec_spawn(c,
1686 argv,
1687 &s->exec_context,
1688 fds, n_fds,
2105e76a 1689 final_env,
9e2f7c11
LP		 1690 apply_permissions,
1691 apply_chroot,
1e3ad081 1692 apply_tty_stdin,
4cd1fbcc
LP		 1693 s->meta.manager->confirm_spawn,
1694 s->meta.cgroup_bondings,
9e2f7c11
LP		 1695 &pid);
1696
9e2f7c11 1697 if (r < 0)
034c6ed7
LP		 1698 goto fail;
1699
4f2d528d 1700
87f0e418 1701 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1702 /* FIXME: we need to do something here */
1703 goto fail;
1704
2105e76a
LP		 1705 free(fdsbuf);
1706 strv_free(argv);
1707 strv_free(our_env);
1708 strv_free(final_env);
1709
034c6ed7
LP		 1710 *_pid = pid;
1711
5cb5a6ff 1712 return 0;
034c6ed7
LP		 1713
1714fail:
2105e76a 1715 free(fdsbuf);
c952c6ec 1716 strv_free(argv);
2105e76a
LP		 1717 strv_free(our_env);
1718 strv_free(final_env);
c952c6ec 1719
034c6ed7 1720 if (timeout)
acbb0225 1721 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1722
1723 return r;
1724}
1725
80876c20
LP		 1726static int main_pid_good(Service *s) {
1727 assert(s);
1728
1729 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1730 * don't know */
1731
1732 /* If we know the pid file, then lets just check if it is
1733 * still valid */
1734 if (s->main_pid_known)
1735 return s->main_pid > 0;
1736
1737 /* We don't know the pid */
1738 return -EAGAIN;
1739}
1740
1741static int control_pid_good(Service *s) {
1742 assert(s);
1743
1744 return s->control_pid > 0;
1745}
1746
1747static int cgroup_good(Service *s) {
1748 int r;
1749
1750 assert(s);
1751
4cd1fbcc 1752 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1753 return r;
1754
1755 return !r;
1756}
1757
034c6ed7
LP		 1758static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1759 int r;
1760 assert(s);
1761
1762 if (!success)
1763 s->failure = true;
1764
1765 if (allow_restart &&
47342320 1766 !s->forbid_restart &&
034c6ed7 1767 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1768 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1769 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1770 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1771 (s->main_exec_status.code == CLD_KILLED ||
1772 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1773
acbb0225 1774 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1775 goto fail;
1776
1777 service_set_state(s, SERVICE_AUTO_RESTART);
1778 } else
fdf20a31 1779 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1780
47342320
LP		 1781 s->forbid_restart = false;
1782
034c6ed7
LP		 1783 return;
1784
1785fail:
4cd1fbcc 1786 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1787 service_enter_dead(s, false, false);
1788}
1789
1790static void service_enter_signal(Service *s, ServiceState state, bool success);
1791
1792static void service_enter_stop_post(Service *s, bool success) {
1793 int r;
1794 assert(s);
1795
1796 if (!success)
1797 s->failure = true;
1798
5e94833f
LP		 1799 service_unwatch_control_pid(s);
1800
80876c20 1801 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1802 s->control_command_id = SERVICE_EXEC_STOP_POST;
1803
81a2b7ce
LP		 1804 if ((r = service_spawn(s,
1805 s->control_command,
1806 true,
1807 false,
1808 !s->permissions_start_only,
1809 !s->root_directory_start_only,
1e3ad081 1810 true,
c952c6ec 1811 false,
81a2b7ce 1812 &s->control_pid)) < 0)
034c6ed7
LP		 1813 goto fail;
1814
d6ea93e3 1815
80876c20
LP		 1816 service_set_state(s, SERVICE_STOP_POST);
1817 } else
1818 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1819
1820 return;
1821
1822fail:
4cd1fbcc 1823 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1824 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1825}
1826
1827static void service_enter_signal(Service *s, ServiceState state, bool success) {
1828 int r;
ca949c9d
LP		 1829 Set *pid_set = NULL;
1830 bool wait_for_exit = false;
034c6ed7
LP		 1831
1832 assert(s);
1833
1834 if (!success)
1835 s->failure = true;
1836
2e22afe9
LP		 1837 if (s->exec_context.kill_mode != KILL_NONE) {
1838 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1839
ca949c9d 1840 if (s->main_pid > 0) {
cd25cce9 1841 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1842 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1843 else
1844 wait_for_exit = true;
034c6ed7
LP		 1845 }
1846
ca949c9d 1847 if (s->control_pid > 0) {
cd25cce9 1848 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1849
ca949c9d
LP		 1850 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1851 else
1852 wait_for_exit = true;
1853 }
50159e6a 1854
ca949c9d 1855 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1856
ca949c9d
LP		 1857 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1858 r = -ENOMEM;
50159e6a 1859 goto fail;
ca949c9d
LP		 1860 }
1861
1862 /* Exclude the main/control pids from being killed via the cgroup */
1863 if (s->main_pid > 0)
1864 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1865 goto fail;
1866
1867 if (s->control_pid > 0)
1868 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1869 goto fail;
1870
430c18ed 1871 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1872 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1873 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1874 } else if (r > 0)
ca949c9d
LP		 1875 wait_for_exit = true;
1876
1877 set_free(pid_set);
50159e6a 1878 }
d6ea93e3 1879 }
034c6ed7 1880
ca949c9d 1881 if (wait_for_exit) {
e558336f
LP		 1882 if (s->timeout_usec > 0)
1883 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1884 goto fail;
d6ea93e3 1885
80876c20
LP		 1886 service_set_state(s, state);
1887 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1888 service_enter_stop_post(s, true);
1889 else
034c6ed7
LP		 1890 service_enter_dead(s, true, true);
1891
1892 return;
1893
1894fail:
4cd1fbcc 1895 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1896
80876c20 1897 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1898 service_enter_stop_post(s, false);
1899 else
1900 service_enter_dead(s, false, true);
ca949c9d
LP		 1901
1902 if (pid_set)
1903 set_free(pid_set);
034c6ed7
LP		 1904}
1905
1906static void service_enter_stop(Service *s, bool success) {
1907 int r;
5925dd3c 1908
034c6ed7
LP		 1909 assert(s);
1910
1911 if (!success)
1912 s->failure = true;
1913
5e94833f
LP		 1914 service_unwatch_control_pid(s);
1915
80876c20 1916 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1917 s->control_command_id = SERVICE_EXEC_STOP;
1918
81a2b7ce
LP		 1919 if ((r = service_spawn(s,
1920 s->control_command,
1921 true,
1922 false,
1923 !s->permissions_start_only,
1924 !s->root_directory_start_only,
c952c6ec 1925 false,
1e3ad081 1926 false,
e55224ca 1927 &s->control_pid)) < 0)
034c6ed7
LP		 1928 goto fail;
1929
80876c20
LP		 1930 service_set_state(s, SERVICE_STOP);
1931 } else
034c6ed7
LP		 1932 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1933
1934 return;
1935
1936fail:
4cd1fbcc 1937 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1938 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1939}
1940
80876c20 1941static void service_enter_running(Service *s, bool success) {
4eab639f 1942 int main_pid_ok, cgroup_ok;
80876c20
LP		 1943 assert(s);
1944
1945 if (!success)
1946 s->failure = true;
1947
4eab639f
LP		 1948 main_pid_ok = main_pid_good(s);
1949 cgroup_ok = cgroup_good(s);
1950
1951 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1952 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1953 service_set_state(s, SERVICE_RUNNING);
02ee865a 1954 else if (s->remain_after_exit)
80876c20
LP		 1955 service_set_state(s, SERVICE_EXITED);
1956 else
1957 service_enter_stop(s, true);
1958}
1959
034c6ed7
LP		 1960static void service_enter_start_post(Service *s) {
1961 int r;
1962 assert(s);
1963
5e94833f
LP		 1964 service_unwatch_control_pid(s);
1965
80876c20 1966 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 1967 s->control_command_id = SERVICE_EXEC_START_POST;
1968
81a2b7ce
LP		 1969 if ((r = service_spawn(s,
1970 s->control_command,
1971 true,
1972 false,
1973 !s->permissions_start_only,
1974 !s->root_directory_start_only,
c952c6ec 1975 false,
1e3ad081 1976 false,
e55224ca 1977 &s->control_pid)) < 0)
034c6ed7
LP		 1978 goto fail;
1979
80876c20
LP		 1980 service_set_state(s, SERVICE_START_POST);
1981 } else
1982 service_enter_running(s, true);
034c6ed7
LP		 1983
1984 return;
1985
1986fail:
4cd1fbcc 1987 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1988 service_enter_stop(s, false);
1989}
1990
1991static void service_enter_start(Service *s) {
1992 pid_t pid;
1993 int r;
867b3b7d 1994 ExecCommand *c;
034c6ed7
LP		 1995
1996 assert(s);
1997
1998 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1999 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2000
80876c20
LP		 2001 if (s->type == SERVICE_FORKING)
2002 service_unwatch_control_pid(s);
2003 else
2004 service_unwatch_main_pid(s);
2005
867b3b7d
LP		 2006 if (s->type == SERVICE_FORKING) {
2007 s->control_command_id = SERVICE_EXEC_START;
2008 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2009
2010 s->main_command = NULL;
2011 } else {
2012 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2013 s->control_command = NULL;
2014
2015 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2016 }
34e9ba66 2017
81a2b7ce 2018 if ((r = service_spawn(s,
867b3b7d 2019 c,
8c47c732 2020 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2021 true,
2022 true,
2023 true,
1e3ad081 2024 true,
c952c6ec 2025 s->notify_access != NOTIFY_NONE,
81a2b7ce 2026 &pid)) < 0)
034c6ed7
LP		 2027 goto fail;
2028
2029 if (s->type == SERVICE_SIMPLE) {
2030 /* For simple services we immediately start
2031 * the START_POST binaries. */
2032
5925dd3c 2033 service_set_main_pid(s, pid);
034c6ed7
LP		 2034 service_enter_start_post(s);
2035
2036 } else if (s->type == SERVICE_FORKING) {
2037
2038 /* For forking services we wait until the start
2039 * process exited. */
2040
e55224ca 2041 s->control_pid = pid;
80876c20
LP		 2042 service_set_state(s, SERVICE_START);
2043
34e9ba66 2044 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2045 s->type == SERVICE_DBUS ||
2046 s->type == SERVICE_NOTIFY) {
7d55e835 2047
34e9ba66 2048 /* For oneshot services we wait until the start
7d55e835
LP		 2049 * process exited, too, but it is our main process. */
2050
05e343b7 2051 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2052 * but wait for the bus name to appear on the
2053 * bus. Notify services are similar. */
05e343b7 2054
5925dd3c 2055 service_set_main_pid(s, pid);
80876c20 2056 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2057 } else
2058 assert_not_reached("Unknown service type");
2059
2060 return;
2061
2062fail:
4cd1fbcc 2063 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2064 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2065}
2066
2067static void service_enter_start_pre(Service *s) {
2068 int r;
2069
2070 assert(s);
2071
5e94833f
LP		 2072 service_unwatch_control_pid(s);
2073
80876c20 2074 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2075 s->control_command_id = SERVICE_EXEC_START_PRE;
2076
81a2b7ce
LP		 2077 if ((r = service_spawn(s,
2078 s->control_command,
2079 true,
2080 false,
2081 !s->permissions_start_only,
2082 !s->root_directory_start_only,
1e3ad081 2083 true,
c952c6ec 2084 false,
e55224ca 2085 &s->control_pid)) < 0)
034c6ed7
LP		 2086 goto fail;
2087
80876c20
LP		 2088 service_set_state(s, SERVICE_START_PRE);
2089 } else
034c6ed7
LP		 2090 service_enter_start(s);
2091
2092 return;
2093
2094fail:
4cd1fbcc 2095 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2096 service_enter_dead(s, false, true);
2097}
2098
2099static void service_enter_restart(Service *s) {
2100 int r;
398ef8ba
LP		 2101 DBusError error;
2102
034c6ed7 2103 assert(s);
398ef8ba 2104 dbus_error_init(&error);
034c6ed7 2105
2edfa366
LP		 2106 if (s->meta.job) {
2107 log_info("Job pending for unit, delaying automatic restart.");
2108
2109 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2110 goto fail;
2111 }
2112
9ea9a0c8
LP		 2113 service_enter_dead(s, true, false);
2114
7b2603e6 2115 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2116 goto fail;
2117
4cd1fbcc 2118 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2119 return;
2120
2121fail:
398ef8ba 2122 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2123 service_enter_dead(s, false, false);
398ef8ba
LP		 2124
2125 dbus_error_free(&error);
034c6ed7
LP		 2126}
2127
2128static void service_enter_reload(Service *s) {
2129 int r;
2130
2131 assert(s);
2132
5e94833f
LP		 2133 service_unwatch_control_pid(s);
2134
80876c20 2135 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2136 s->control_command_id = SERVICE_EXEC_RELOAD;
2137
81a2b7ce
LP		 2138 if ((r = service_spawn(s,
2139 s->control_command,
2140 true,
2141 false,
2142 !s->permissions_start_only,
2143 !s->root_directory_start_only,
c952c6ec 2144 false,
1e3ad081 2145 false,
e55224ca 2146 &s->control_pid)) < 0)
034c6ed7
LP		 2147 goto fail;
2148
80876c20
LP		 2149 service_set_state(s, SERVICE_RELOAD);
2150 } else
2151 service_enter_running(s, true);
034c6ed7
LP		 2152
2153 return;
2154
2155fail:
4cd1fbcc 2156 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2157 s->reload_failure = true;
2158 service_enter_running(s, true);
034c6ed7
LP		 2159}
2160
34e9ba66 2161static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2162 int r;
2163
2164 assert(s);
2165 assert(s->control_command);
2166 assert(s->control_command->command_next);
2167
2168 if (!success)
2169 s->failure = true;
2170
34e9ba66 2171 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2172
34e9ba66 2173 s->control_command = s->control_command->command_next;
5e94833f
LP		 2174 service_unwatch_control_pid(s);
2175
81a2b7ce
LP		 2176 if ((r = service_spawn(s,
2177 s->control_command,
2178 true,
2179 false,
2180 !s->permissions_start_only,
2181 !s->root_directory_start_only,
5830833f
LP		 2182 s->control_command_id == SERVICE_EXEC_START_PRE ||
2183 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2184 false,
e55224ca 2185 &s->control_pid)) < 0)
034c6ed7
LP		 2186 goto fail;
2187
2188 return;
2189
2190fail:
34e9ba66 2191 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2192
80876c20
LP		 2193 if (s->state == SERVICE_START_PRE)
2194 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2195 else if (s->state == SERVICE_STOP)
2196 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2197 else if (s->state == SERVICE_STOP_POST)
2198 service_enter_dead(s, false, true);
e2f3b44c
LP		 2199 else if (s->state == SERVICE_RELOAD) {
2200 s->reload_failure = true;
2201 service_enter_running(s, true);
2202 } else
034c6ed7 2203 service_enter_stop(s, false);
5cb5a6ff
LP		 2204}
2205
34e9ba66
LP		 2206static void service_run_next_main(Service *s, bool success) {
2207 pid_t pid;
2208 int r;
2209
2210 assert(s);
867b3b7d
LP		 2211 assert(s->main_command);
2212 assert(s->main_command->command_next);
2213 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2214
2215 if (!success)
2216 s->failure = true;
2217
867b3b7d 2218 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2219 service_unwatch_main_pid(s);
2220
2221 if ((r = service_spawn(s,
867b3b7d 2222 s->main_command,
34e9ba66
LP		 2223 false,
2224 true,
2225 true,
2226 true,
2227 true,
2228 s->notify_access != NOTIFY_NONE,
2229 &pid)) < 0)
2230 goto fail;
2231
2232 service_set_main_pid(s, pid);
2233
2234 return;
2235
2236fail:
2237 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2238 service_enter_stop(s, false);
2239}
2240
87f0e418
LP		 2241static int service_start(Unit *u) {
2242 Service *s = SERVICE(u);
5cb5a6ff
LP		 2243
2244 assert(s);
2245
034c6ed7
LP		 2246 /* We cannot fulfill this request right now, try again later
2247 * please! */
2248 if (s->state == SERVICE_STOP ||
2249 s->state == SERVICE_STOP_SIGTERM ||
2250 s->state == SERVICE_STOP_SIGKILL ||
2251 s->state == SERVICE_STOP_POST ||
2252 s->state == SERVICE_FINAL_SIGTERM ||
2253 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2254 return -EAGAIN;
2255
034c6ed7
LP		 2256 /* Already on it! */
2257 if (s->state == SERVICE_START_PRE ||
2258 s->state == SERVICE_START ||
2259 s->state == SERVICE_START_POST)
2260 return 0;
2261
fdf20a31 2262 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2263
1e2e8133
LP		 2264 /* Make sure we don't enter a busy loop of some kind. */
2265 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2266 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2267 return -ECANCELED;
1e2e8133
LP		 2268 }
2269
034c6ed7
LP		 2270 s->failure = false;
2271 s->main_pid_known = false;
47342320 2272 s->forbid_restart = false;
034c6ed7
LP		 2273
2274 service_enter_start_pre(s);
2275 return 0;
5cb5a6ff
LP		 2276}
2277
87f0e418
LP		 2278static int service_stop(Unit *u) {
2279 Service *s = SERVICE(u);
5cb5a6ff
LP		 2280
2281 assert(s);
2282
3f6c78dc
LP		 2283 /* This is a user request, so don't do restarts on this
2284 * shutdown. */
47342320 2285 s->forbid_restart = true;
034c6ed7 2286
e537352b
LP		 2287 /* Already on it */
2288 if (s->state == SERVICE_STOP ||
2289 s->state == SERVICE_STOP_SIGTERM ||
2290 s->state == SERVICE_STOP_SIGKILL ||
2291 s->state == SERVICE_STOP_POST ||
2292 s->state == SERVICE_FINAL_SIGTERM ||
2293 s->state == SERVICE_FINAL_SIGKILL)
2294 return 0;
2295
3f6c78dc 2296 /* Don't allow a restart */
034c6ed7
LP		 2297 if (s->state == SERVICE_AUTO_RESTART) {
2298 service_set_state(s, SERVICE_DEAD);
2299 return 0;
2300 }
2301
3f6c78dc
LP		 2302 /* If there's already something running we go directly into
2303 * kill mode. */
2304 if (s->state == SERVICE_START_PRE ||
2305 s->state == SERVICE_START ||
2306 s->state == SERVICE_START_POST ||
2307 s->state == SERVICE_RELOAD) {
2308 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2309 return 0;
2310 }
5cb5a6ff 2311
3f6c78dc
LP		 2312 assert(s->state == SERVICE_RUNNING ||
2313 s->state == SERVICE_EXITED);
3a762661 2314
034c6ed7 2315 service_enter_stop(s, true);
5cb5a6ff
LP		 2316 return 0;
2317}
2318
87f0e418
LP		 2319static int service_reload(Unit *u) {
2320 Service *s = SERVICE(u);
034c6ed7
LP		 2321
2322 assert(s);
2323
80876c20 2324 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2325
2326 service_enter_reload(s);
5cb5a6ff
LP		 2327 return 0;
2328}
2329
87f0e418
LP		 2330static bool service_can_reload(Unit *u) {
2331 Service *s = SERVICE(u);
034c6ed7
LP		 2332
2333 assert(s);
2334
2335 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2336}
2337
a16e1123
LP		 2338static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2339 Service *s = SERVICE(u);
2340
2341 assert(u);
2342 assert(f);
2343 assert(fds);
2344
2345 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2346 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2347
2348 if (s->control_pid > 0)
5925dd3c 2349 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2350
5925dd3c
LP		 2351 if (s->main_pid_known && s->main_pid > 0)
2352 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2353
2354 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2355
3a2776bc
LP		 2356 if (s->status_text)
2357 unit_serialize_item(u, f, "status-text", s->status_text);
2358
a16e1123
LP		 2359 /* There's a minor uncleanliness here: if there are multiple
2360 * commands attached here, we will start from the first one
2361 * again */
2362 if (s->control_command_id >= 0)
825636e5 2363 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2364
2365 if (s->socket_fd >= 0) {
2366 int copy;
2367
2368 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2369 return copy;
2370
2371 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2372 }
2373
ecdbca40
LP		 2374 if (s->main_exec_status.pid > 0) {
2375 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2376 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2377 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2378
799fd0fd 2379 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2380 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2381 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2382 }
2383 }
2384
a16e1123
LP		 2385 return 0;
2386}
2387
2388static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2389 Service *s = SERVICE(u);
a16e1123
LP		 2390
2391 assert(u);
2392 assert(key);
2393 assert(value);
2394 assert(fds);
2395
2396 if (streq(key, "state")) {
2397 ServiceState state;
2398
2399 if ((state = service_state_from_string(value)) < 0)
2400 log_debug("Failed to parse state value %s", value);
2401 else
2402 s->deserialized_state = state;
2403 } else if (streq(key, "failure")) {
2404 int b;
2405
2406 if ((b = parse_boolean(value)) < 0)
2407 log_debug("Failed to parse failure value %s", value);
2408 else
2409 s->failure = b || s->failure;
2410 } else if (streq(key, "control-pid")) {
5925dd3c 2411 pid_t pid;
a16e1123 2412
e364ad06 2413 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2414 log_debug("Failed to parse control-pid value %s", value);
2415 else
e55224ca 2416 s->control_pid = pid;
a16e1123 2417 } else if (streq(key, "main-pid")) {
5925dd3c 2418 pid_t pid;
a16e1123 2419
e364ad06 2420 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2421 log_debug("Failed to parse main-pid value %s", value);
2422 else
5925dd3c 2423 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2424 } else if (streq(key, "main-pid-known")) {
2425 int b;
2426
2427 if ((b = parse_boolean(value)) < 0)
2428 log_debug("Failed to parse main-pid-known value %s", value);
2429 else
2430 s->main_pid_known = b;
3a2776bc
LP		 2431 } else if (streq(key, "status-text")) {
2432 char *t;
2433
2434 if ((t = strdup(value))) {
2435 free(s->status_text);
2436 s->status_text = t;
2437 }
2438
a16e1123
LP		 2439 } else if (streq(key, "control-command")) {
2440 ServiceExecCommand id;
2441
2442 if ((id = service_exec_command_from_string(value)) < 0)
2443 log_debug("Failed to parse exec-command value %s", value);
2444 else {
2445 s->control_command_id = id;
2446 s->control_command = s->exec_command[id];
2447 }
2448 } else if (streq(key, "socket-fd")) {
2449 int fd;
2450
2451 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2452 log_debug("Failed to parse socket-fd value %s", value);
2453 else {
2454
2455 if (s->socket_fd >= 0)
2456 close_nointr_nofail(s->socket_fd);
2457 s->socket_fd = fdset_remove(fds, fd);
2458 }
ecdbca40
LP		 2459 } else if (streq(key, "main-exec-status-pid")) {
2460 pid_t pid;
2461
e364ad06 2462 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2463 log_debug("Failed to parse main-exec-status-pid value %s", value);
2464 else
2465 s->main_exec_status.pid = pid;
2466 } else if (streq(key, "main-exec-status-code")) {
2467 int i;
2468
e364ad06 2469 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2470 log_debug("Failed to parse main-exec-status-code value %s", value);
2471 else
2472 s->main_exec_status.code = i;
2473 } else if (streq(key, "main-exec-status-status")) {
2474 int i;
2475
e364ad06 2476 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2477 log_debug("Failed to parse main-exec-status-status value %s", value);
2478 else
2479 s->main_exec_status.status = i;
799fd0fd
LP		 2480 } else if (streq(key, "main-exec-status-start"))
2481 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2482 else if (streq(key, "main-exec-status-exit"))
2483 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2484 else
a16e1123
LP		 2485 log_debug("Unknown serialization key '%s'", key);
2486
2487 return 0;
2488}
2489
87f0e418
LP		 2490static UnitActiveState service_active_state(Unit *u) {
2491 assert(u);
5cb5a6ff 2492
acbb0225 2493 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2494}
2495
10a94420
LP		 2496static const char *service_sub_state_to_string(Unit *u) {
2497 assert(u);
2498
2499 return service_state_to_string(SERVICE(u)->state);
2500}
2501
701cc384
LP		 2502static bool service_check_gc(Unit *u) {
2503 Service *s = SERVICE(u);
2504
2505 assert(s);
2506
6d55002a
LP		 2507 /* Never clean up services that still have a process around,
2508 * even if the service is formally dead. */
2509 if (cgroup_good(s) > 0 ||
2510 main_pid_good(s) > 0 ||
2511 control_pid_good(s) > 0)
2512 return true;
2513
2514#ifdef HAVE_SYSV_COMPAT
2515 if (s->sysv_path)
2516 return true;
07459bb6 2517#endif
701cc384 2518
6d55002a
LP		 2519 return false;
2520}
2521
701cc384
LP		 2522static bool service_check_snapshot(Unit *u) {
2523 Service *s = SERVICE(u);
2524
2525 assert(s);
2526
2527 return !s->got_socket_fd;
2528}
2529
87f0e418
LP		 2530static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2531 Service *s = SERVICE(u);
034c6ed7 2532 bool success;
5cb5a6ff
LP		 2533
2534 assert(s);
034c6ed7
LP		 2535 assert(pid >= 0);
2536
f21781d5 2537 if (!s->meta.fragment_path)
d06dacd0
LP		 2538 success = is_clean_exit_lsb(code, status);
2539 else
2540 success = is_clean_exit(code, status);
034c6ed7
LP		 2541
2542 if (s->main_pid == pid) {
2543
034c6ed7 2544 s->main_pid = 0;
169c1bda 2545 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
034c6ed7 2546
867b3b7d
LP		 2547 /* If this is not a forking service than the main
2548 * process got started and hence we copy the exit
2549 * status so that it is recorded both as main and as
2550 * control process exit status */
2551 if (s->main_command) {
2552 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2553
867b3b7d 2554 if (s->main_command->ignore)
b708e7ce 2555 success = true;
034c6ed7
LP		 2556 }
2557
92abbefb
LP		 2558 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2559 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2560 s->failure = s->failure || !success;
034c6ed7 2561
867b3b7d
LP		 2562 if (s->main_command &&
2563 s->main_command->command_next &&
34e9ba66 2564 success) {
034c6ed7 2565
34e9ba66
LP		 2566 /* There is another command to *
2567 * execute, so let's do that. */
034c6ed7 2568
34e9ba66
LP		 2569 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2570 service_run_next_main(s, success);
034c6ed7 2571
34e9ba66
LP		 2572 } else {
2573
2574 /* The service exited, so the service is officially
2575 * gone. */
867b3b7d 2576 s->main_command = NULL;
34e9ba66
LP		 2577
2578 switch (s->state) {
2579
2580 case SERVICE_START_POST:
2581 case SERVICE_RELOAD:
2582 case SERVICE_STOP:
2583 /* Need to wait until the operation is
2584 * done */
c4653a4d 2585 break;
7d55e835 2586
34e9ba66
LP		 2587 case SERVICE_START:
2588 if (s->type == SERVICE_ONESHOT) {
2589 /* This was our main goal, so let's go on */
2590 if (success)
2591 service_enter_start_post(s);
2592 else
2593 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2594 break;
2595 } else {
2596 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2597
34e9ba66
LP		 2598 /* Fall through */
2599 }
034c6ed7 2600
34e9ba66
LP		 2601 case SERVICE_RUNNING:
2602 service_enter_running(s, success);
2603 break;
034c6ed7 2604
34e9ba66
LP		 2605 case SERVICE_STOP_SIGTERM:
2606 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2607
34e9ba66
LP		 2608 if (!control_pid_good(s))
2609 service_enter_stop_post(s, success);
5cb5a6ff 2610
34e9ba66
LP		 2611 /* If there is still a control process, wait for that first */
2612 break;
2613
2614 default:
2615 assert_not_reached("Uh, main process died at wrong time.");
2616 }
034c6ed7 2617 }
5cb5a6ff 2618
034c6ed7 2619 } else if (s->control_pid == pid) {
034c6ed7 2620
34e9ba66
LP		 2621 s->control_pid = 0;
2622
b708e7ce 2623 if (s->control_command) {
169c1bda 2624 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 2625
b708e7ce
LP		 2626 if (s->control_command->ignore)
2627 success = true;
2628 }
2629
34e9ba66 2630 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2631 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2632 s->failure = s->failure || !success;
034c6ed7 2633
34e9ba66
LP		 2634 if (s->control_command &&
2635 s->control_command->command_next &&
2636 success) {
034c6ed7
LP		 2637
2638 /* There is another command to *
2639 * execute, so let's do that. */
2640
34e9ba66
LP		 2641 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2642 service_run_next_control(s, success);
034c6ed7 2643
80876c20 2644 } else {
034c6ed7
LP		 2645 /* No further commands for this step, so let's
2646 * figure out what to do next */
2647
a16e1123
LP		 2648 s->control_command = NULL;
2649 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2650
9e2f7c11 2651 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2652
034c6ed7
LP		 2653 switch (s->state) {
2654
2655 case SERVICE_START_PRE:
2656 if (success)
2657 service_enter_start(s);
2658 else
80876c20 2659 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2660 break;
2661
2662 case SERVICE_START:
2663 assert(s->type == SERVICE_FORKING);
2664
2665 /* Let's try to load the pid
2666 * file here if we can. We
2667 * ignore the return value,
2668 * since the PID file might
2669 * actually be created by a
2670 * START_POST script */
2671
2672 if (success) {
4fbf50b3
LP		 2673 service_load_pid_file(s);
2674 service_search_main_pid(s);
034c6ed7
LP		 2675
2676 service_enter_start_post(s);
2677 } else
80876c20 2678 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2679
2680 break;
2681
2682 case SERVICE_START_POST:
2683 if (success && s->pid_file && !s->main_pid_known) {
2684 int r;
2685
2686 /* Hmm, let's see if we can
2687 * load the pid now after the
2688 * start-post scripts got
2689 * executed. */
2690
2691 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2692 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2693 }
2694
3185a36b
LP		 2695 s->reload_failure = !success;
2696 service_enter_running(s, true);
2697 break;
034c6ed7
LP		 2698
2699 case SERVICE_RELOAD:
3185a36b
LP		 2700 if (success) {
2701 service_load_pid_file(s);
2702 service_search_main_pid(s);
2703 }
2704
e2f3b44c
LP		 2705 s->reload_failure = !success;
2706 service_enter_running(s, true);
034c6ed7
LP		 2707 break;
2708
2709 case SERVICE_STOP:
80876c20 2710 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2711 break;
2712
2713 case SERVICE_STOP_SIGTERM:
2714 case SERVICE_STOP_SIGKILL:
2715 if (main_pid_good(s) <= 0)
2716 service_enter_stop_post(s, success);
2717
2718 /* If there is still a service
2719 * process around, wait until
2720 * that one quit, too */
2721 break;
2722
2723 case SERVICE_STOP_POST:
2724 case SERVICE_FINAL_SIGTERM:
2725 case SERVICE_FINAL_SIGKILL:
2726 service_enter_dead(s, success, true);
2727 break;
2728
2729 default:
2730 assert_not_reached("Uh, control process died at wrong time.");
2731 }
2732 }
8c47c732 2733 }
c4e2ceae
LP		 2734
2735 /* Notify clients about changed exit status */
2736 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2737}
2738
acbb0225 2739static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2740 Service *s = SERVICE(u);
034c6ed7
LP		 2741
2742 assert(s);
2743 assert(elapsed == 1);
2744
acbb0225 2745 assert(w == &s->timer_watch);
034c6ed7
LP		 2746
2747 switch (s->state) {
2748
2749 case SERVICE_START_PRE:
2750 case SERVICE_START:
9e2f7c11 2751 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2752 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2753 break;
2754
034c6ed7 2755 case SERVICE_START_POST:
9e2f7c11 2756 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2757 service_enter_stop(s, false);
2758 break;
2759
e2f3b44c
LP		 2760 case SERVICE_RELOAD:
2761 log_warning("%s operation timed out. Stopping.", u->meta.id);
2762 s->reload_failure = true;
2763 service_enter_running(s, true);
2764 break;
2765
034c6ed7 2766 case SERVICE_STOP:
9e2f7c11 2767 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2768 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2769 break;
2770
2771 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2772 if (s->exec_context.send_sigkill) {
2773 log_warning("%s stopping timed out. Killing.", u->meta.id);
2774 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2775 } else {
2776 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2777 service_enter_stop_post(s, false);
2778 }
2779
034c6ed7
LP		 2780 break;
2781
2782 case SERVICE_STOP_SIGKILL:
35b8ca3a 2783 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 2784 * Must be something we cannot kill, so let's just be
2785 * weirded out and continue */
2786
9e2f7c11 2787 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2788 service_enter_stop_post(s, false);
2789 break;
2790
2791 case SERVICE_STOP_POST:
9e2f7c11 2792 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2793 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2794 break;
2795
2796 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2797 if (s->exec_context.send_sigkill) {
2798 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2799 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2800 } else {
2801 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2802 service_enter_dead(s, false, true);
2803 }
2804
034c6ed7
LP		 2805 break;
2806
2807 case SERVICE_FINAL_SIGKILL:
fdf20a31 2808 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2809 service_enter_dead(s, false, true);
2810 break;
2811
2812 case SERVICE_AUTO_RESTART:
54165a39 2813 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2814 service_enter_restart(s);
2815 break;
2816
2817 default:
2818 assert_not_reached("Timeout at wrong time.");
2819 }
5cb5a6ff
LP		 2820}
2821
8e274523
LP		 2822static void service_cgroup_notify_event(Unit *u) {
2823 Service *s = SERVICE(u);
2824
2825 assert(u);
2826
9e2f7c11 2827 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2828
2829 switch (s->state) {
2830
2831 /* Waiting for SIGCHLD is usually more interesting,
2832 * because it includes return codes/signals. Which is
2833 * why we ignore the cgroup events for most cases,
2834 * except when we don't know pid which to expect the
2835 * SIGCHLD for. */
2836
2837 case SERVICE_RUNNING:
80876c20 2838 service_enter_running(s, true);
8e274523
LP		 2839 break;
2840
28708d8a
LP		 2841 case SERVICE_STOP_SIGTERM:
2842 case SERVICE_STOP_SIGKILL:
2843 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2844 service_enter_stop_post(s, true);
2845
2846 break;
2847
7f97f0fe
LP		 2848 case SERVICE_FINAL_SIGTERM:
2849 case SERVICE_FINAL_SIGKILL:
2850 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2851 service_enter_dead(s, true, true);
2852
2853 break;
2854
8e274523
LP		 2855 default:
2856 ;
2857 }
2858}
2859
c952c6ec 2860static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2861 Service *s = SERVICE(u);
2862 const char *e;
2863
2864 assert(u);
2865
c952c6ec
LP		 2866 if (s->notify_access == NOTIFY_NONE) {
2867 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2868 u->meta.id, (unsigned long) pid);
2869 return;
2870 }
2871
2872 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2873 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2874 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2875 return;
2876 }
2877
8c47c732
LP		 2878 log_debug("%s: Got message", u->meta.id);
2879
2880 /* Interpret MAINPID= */
2881 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2882 (s->state == SERVICE_START ||
2883 s->state == SERVICE_START_POST ||
2884 s->state == SERVICE_RUNNING ||
2885 s->state == SERVICE_RELOAD)) {
8c47c732 2886
5925dd3c 2887 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2888 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2889 else {
2890 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2891 service_set_main_pid(s, pid);
8c47c732
LP		 2892 }
2893 }
2894
2895 /* Interpret READY= */
2896 if (s->type == SERVICE_NOTIFY &&
2897 s->state == SERVICE_START &&
2898 strv_find(tags, "READY=1")) {
2899 log_debug("%s: got READY=1", u->meta.id);
2900
2901 service_enter_start_post(s);
2902 }
2903
2904 /* Interpret STATUS= */
2905 if ((e = strv_find_prefix(tags, "STATUS="))) {
2906 char *t;
2907
3a2776bc
LP		 2908 if (e[7]) {
2909 if (!(t = strdup(e+7))) {
2910 log_error("Failed to allocate string.");
2911 return;
2912 }
2913
2914 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2915
3a2776bc
LP		 2916 free(s->status_text);
2917 s->status_text = t;
2918 } else {
2919 free(s->status_text);
2920 s->status_text = NULL;
2921 }
8c47c732 2922
8c47c732 2923 }
c4e2ceae
LP		 2924
2925 /* Notify clients about changed status or main pid */
2926 unit_add_to_dbus_queue(u);
8c47c732
LP		 2927}
2928
07459bb6 2929#ifdef HAVE_SYSV_COMPAT
2c4104f0 2930static int service_enumerate(Manager *m) {
2c4104f0
LP		 2931 char **p;
2932 unsigned i;
2933 DIR *d = NULL;
2934 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2935 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2936 Unit *service;
2937 Iterator j;
2c4104f0
LP		 2938 int r;
2939
2940 assert(m);
2941
c68364b7
LP		 2942 zero(runlevel_services);
2943
84e3543e 2944 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2945 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2946 struct dirent *de;
2947
2948 free(path);
2949 path = NULL;
09cd1ab1 2950 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2951 r = -ENOMEM;
2952 goto finish;
2953 }
2954
2955 if (d)
2956 closedir(d);
2957
2958 if (!(d = opendir(path))) {
2959 if (errno != ENOENT)
2960 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2961
2962 continue;
2963 }
2964
2965 while ((de = readdir(d))) {
db06e3b6 2966 int a, b;
2c4104f0
LP		 2967
2968 if (ignore_file(de->d_name))
2969 continue;
2970
2971 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2972 continue;
2973
2974 if (strlen(de->d_name) < 4)
2975 continue;
2976
db06e3b6
LP		 2977 a = undecchar(de->d_name[1]);
2978 b = undecchar(de->d_name[2]);
2979
2980 if (a < 0 || b < 0)
2981 continue;
2982
2c4104f0
LP		 2983 free(fpath);
2984 fpath = NULL;
09cd1ab1 2985 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2986 r = -ENOMEM;
2987 goto finish;
2988 }
2989
2990 if (access(fpath, X_OK) < 0) {
2991
2992 if (errno != ENOENT)
2993 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2994
2995 continue;
2996 }
2997
2998 free(name);
b7ccee3c 2999 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3000 r = -ENOMEM;
3001 goto finish;
3002 }
3003
398ef8ba 3004 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3005 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3006 continue;
3007 }
2c4104f0 3008
c68364b7
LP		 3009 if (de->d_name[0] == 'S') {
3010
f73d93a4
LP		 3011 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3012 SERVICE(service)->sysv_start_priority =
3013 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 3014
c68364b7 3015 SERVICE(service)->sysv_enabled = true;
f73d93a4 3016 }
db06e3b6 3017
c68364b7
LP		 3018 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3019 goto finish;
2c4104f0 3020
c68364b7 3021 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3022 goto finish;
23a177ef 3023
fc5df99e
LP		 3024 } else if (de->d_name[0] == 'K' &&
3025 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3026 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3027
c68364b7
LP		 3028 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3029 goto finish;
3030
3031 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3032 goto finish;
3033 }
3034 }
3035 }
3036
c68364b7
LP		 3037 /* Now we loaded all stubs and are aware of the lowest
3038 start-up priority for all services, not let's actually load
3039 the services, this will also tell us which services are
3040 actually native now */
3041 manager_dispatch_load_queue(m);
3042
3043 /* If this is a native service, rely on native ways to pull in
3044 * a service, don't pull it in via sysv rcN.d links. */
3045 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3046 SET_FOREACH(service, runlevel_services[i], j) {
3047 service = unit_follow_merge(service);
3048
3049 if (service->meta.fragment_path)
3050 continue;
3051
3052 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3053 goto finish;
3054 }
3055
3056 /* We honour K links only for halt/reboot. For the normal
3057 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3058 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3059 * between the runlevels 0 and 6 and just add them to the
3060 * special shutdown target. On SUSE the boot.d/ runlevel is
3061 * also used for shutdown, so we add links for that too to the
3062 * shutdown target.*/
3063 SET_FOREACH(service, shutdown_services, j) {
3064 service = unit_follow_merge(service);
3065
3066 if (service->meta.fragment_path)
3067 continue;
3068
ead8e478 3069 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3070 goto finish;
3071 }
3072
2c4104f0
LP		 3073 r = 0;
3074
3075finish:
3076 free(path);
3077 free(fpath);
3078 free(name);
fbe9f3a9 3079
c68364b7
LP		 3080 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3081 set_free(runlevel_services[i]);
3082 set_free(shutdown_services);
3083
fbe9f3a9
LP		 3084 if (d)
3085 closedir(d);
2c4104f0
LP		 3086
3087 return r;
3088}
07459bb6 3089#endif
2c4104f0 3090
05e343b7
LP		 3091static void service_bus_name_owner_change(
3092 Unit *u,
3093 const char *name,
3094 const char *old_owner,
3095 const char *new_owner) {
3096
3097 Service *s = SERVICE(u);
3098
3099 assert(s);
3100 assert(name);
3101
3102 assert(streq(s->bus_name, name));
3103 assert(old_owner || new_owner);
3104
3105 if (old_owner && new_owner)
3106 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3107 else if (old_owner)
3108 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3109 else
3110 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3111
3112 s->bus_name_good = !!new_owner;
3113
3114 if (s->type == SERVICE_DBUS) {
3115
3116 /* service_enter_running() will figure out what to
3117 * do */
3118 if (s->state == SERVICE_RUNNING)
3119 service_enter_running(s, true);
3120 else if (s->state == SERVICE_START && new_owner)
3121 service_enter_start_post(s);
3122
3123 } else if (new_owner &&
3124 s->main_pid <= 0 &&
3125 (s->state == SERVICE_START ||
3126 s->state == SERVICE_START_POST ||
3127 s->state == SERVICE_RUNNING ||
3128 s->state == SERVICE_RELOAD)) {
3129
3130 /* Try to acquire PID from bus service */
3131 log_debug("Trying to acquire PID from D-Bus name...");
3132
3133 bus_query_pid(u->meta.manager, name);
3134 }
3135}
3136
3137static void service_bus_query_pid_done(
3138 Unit *u,
3139 const char *name,
3140 pid_t pid) {
3141
3142 Service *s = SERVICE(u);
3143
3144 assert(s);
3145 assert(name);
3146
3147 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3148
3149 if (s->main_pid <= 0 &&
3150 (s->state == SERVICE_START ||
3151 s->state == SERVICE_START_POST ||
3152 s->state == SERVICE_RUNNING ||
3153 s->state == SERVICE_RELOAD))
5925dd3c 3154 service_set_main_pid(s, pid);
05e343b7
LP		 3155}
3156
6cf6bbc2 3157int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3158 assert(s);
3159 assert(fd >= 0);
3160
3161 /* This is called by the socket code when instantiating a new
3162 * service for a stream socket and the socket needs to be
3163 * configured. */
3164
4cd1fbcc 3165 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3166 return -EINVAL;
3167
3168 if (s->socket_fd >= 0)
3169 return -EBUSY;
3170
3171 if (s->state != SERVICE_DEAD)
3172 return -EAGAIN;
3173
3174 s->socket_fd = fd;
701cc384 3175 s->got_socket_fd = true;
f976f3f6 3176 s->accept_socket = sock;
6cf6bbc2 3177
4f2d528d
LP		 3178 return 0;
3179}
3180
fdf20a31 3181static void service_reset_failed(Unit *u) {
5632e374
LP		 3182 Service *s = SERVICE(u);
3183
3184 assert(s);
3185
fdf20a31 3186 if (s->state == SERVICE_FAILED)
5632e374
LP		 3187 service_set_state(s, SERVICE_DEAD);
3188
3189 s->failure = false;
3190}
3191
8a0867d6
LP		 3192static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3193 Service *s = SERVICE(u);
3194 int r = 0;
3195 Set *pid_set = NULL;
3196
3197 assert(s);
3198
3199 if (s->main_pid <= 0 && who == KILL_MAIN) {
3200 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3201 return -EINVAL;
3202 }
3203
3204 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3205 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3206 return -ENOENT;
3207 }
3208
3209 if (s->control_pid > 0)
cd25cce9 3210 if (kill(s->control_pid, signo) < 0)
8a0867d6
LP		 3211 r = -errno;
3212
3213 if (s->main_pid > 0)
cd25cce9 3214 if (kill(s->main_pid, signo) < 0)
8a0867d6
LP		 3215 r = -errno;
3216
3217 if (mode == KILL_CONTROL_GROUP) {
3218 int q;
3219
3220 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3221 return -ENOMEM;
3222
3223 /* Exclude the control/main pid from being killed via the cgroup */
3224 if (s->control_pid > 0)
3225 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3226 r = q;
3227 goto finish;
3228 }
3229
3230 if (s->main_pid > 0)
3231 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3232 r = q;
3233 goto finish;
3234 }
3235
430c18ed 3236 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
8a0867d6
LP		 3237 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3238 r = q;
3239 }
3240
3241finish:
3242 if (pid_set)
3243 set_free(pid_set);
3244
3245 return r;
3246}
3247
94f04347
LP		 3248static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3249 [SERVICE_DEAD] = "dead",
3250 [SERVICE_START_PRE] = "start-pre",
3251 [SERVICE_START] = "start",
3252 [SERVICE_START_POST] = "start-post",
3253 [SERVICE_RUNNING] = "running",
80876c20 3254 [SERVICE_EXITED] = "exited",
94f04347
LP		 3255 [SERVICE_RELOAD] = "reload",
3256 [SERVICE_STOP] = "stop",
3257 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3258 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3259 [SERVICE_STOP_POST] = "stop-post",
3260 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3261 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3262 [SERVICE_FAILED] = "failed",
94f04347
LP		 3263 [SERVICE_AUTO_RESTART] = "auto-restart",
3264};
3265
3266DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3267
3268static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3269 [SERVICE_RESTART_NO] = "no",
3270 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3271 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3272 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3273 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3274};
3275
3276DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3277
3278static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3279 [SERVICE_SIMPLE] = "simple",
0d624a78 3280 [SERVICE_FORKING] = "forking",
34e9ba66 3281 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3282 [SERVICE_DBUS] = "dbus",
3283 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3284};
3285
3286DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3287
e537352b 3288static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3289 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3290 [SERVICE_EXEC_START] = "ExecStart",
3291 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3292 [SERVICE_EXEC_RELOAD] = "ExecReload",
3293 [SERVICE_EXEC_STOP] = "ExecStop",
3294 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3295};
3296
3297DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3298
c952c6ec
LP		 3299static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3300 [NOTIFY_NONE] = "none",
3301 [NOTIFY_MAIN] = "main",
3302 [NOTIFY_ALL] = "all"
3303};
3304
3305DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3306
87f0e418 3307const UnitVTable service_vtable = {
5cb5a6ff 3308 .suffix = ".service",
9e58ff9c 3309 .show_status = true,
5cb5a6ff 3310
034c6ed7
LP		 3311 .init = service_init,
3312 .done = service_done,
a16e1123
LP		 3313 .load = service_load,
3314
3315 .coldplug = service_coldplug,
034c6ed7 3316
5cb5a6ff
LP		 3317 .dump = service_dump,
3318
3319 .start = service_start,
3320 .stop = service_stop,
3321 .reload = service_reload,
3322
034c6ed7
LP		 3323 .can_reload = service_can_reload,
3324
8a0867d6
LP		 3325 .kill = service_kill,
3326
a16e1123
LP		 3327 .serialize = service_serialize,
3328 .deserialize_item = service_deserialize_item,
3329
5cb5a6ff 3330 .active_state = service_active_state,
10a94420 3331 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3332
701cc384
LP		 3333 .check_gc = service_check_gc,
3334 .check_snapshot = service_check_snapshot,
3335
034c6ed7
LP		 3336 .sigchld_event = service_sigchld_event,
3337 .timer_event = service_timer_event,
2c4104f0 3338
fdf20a31 3339 .reset_failed = service_reset_failed,
5632e374 3340
8e274523 3341 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3342 .notify_message = service_notify_message,
8e274523 3343
05e343b7
LP		 3344 .bus_name_owner_change = service_bus_name_owner_change,
3345 .bus_query_pid_done = service_bus_query_pid_done,
3346
c4e2ceae 3347 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3348 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3349 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3350
07459bb6 3351#ifdef HAVE_SYSV_COMPAT
2c4104f0 3352 .enumerate = service_enumerate
07459bb6 3353#endif
5cb5a6ff 3354};
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