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units/suse: let rc-local.service log to syslog
[thirdparty/systemd.git] / src / service.c
CommitLineData
d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
9a57c629 37#include "exit-status.h"
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
240fc26e 68#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
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 85/* #define RUNLEVELS_DOWN "06" */
e51db373 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;
ea87ca5a 118 s->sysv_start_priority_from_rcnd = -1;
07459bb6 119#endif
a16e1123 120 s->socket_fd = -1;
3185a36b 121 s->guess_main_pid = true;
a16e1123
LP		 122
123 exec_context_init(&s->exec_context);
124
125 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
126
127 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
128}
129
5e94833f
LP		 130static void service_unwatch_control_pid(Service *s) {
131 assert(s);
132
133 if (s->control_pid <= 0)
134 return;
135
136 unit_unwatch_pid(UNIT(s), s->control_pid);
137 s->control_pid = 0;
138}
139
140static void service_unwatch_main_pid(Service *s) {
141 assert(s);
142
143 if (s->main_pid <= 0)
144 return;
145
146 unit_unwatch_pid(UNIT(s), s->main_pid);
147 s->main_pid = 0;
148}
149
5925dd3c 150static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 151 pid_t ppid;
152
5925dd3c
LP		 153 assert(s);
154
155 if (pid <= 1)
156 return -EINVAL;
157
158 if (pid == getpid())
159 return -EINVAL;
160
6dfa5494
LP		 161 s->main_pid = pid;
162 s->main_pid_known = true;
163
164 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
e55224ca
LP		 165 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
166 s->meta.id, (unsigned long) pid);
167
6dfa5494
LP		 168 s->main_pid_alien = true;
169 } else
170 s->main_pid_alien = false;
5925dd3c 171
b58b4116
LP		 172 exec_status_start(&s->main_exec_status, pid);
173
5925dd3c
LP		 174 return 0;
175}
176
4f2d528d
LP		 177static void service_close_socket_fd(Service *s) {
178 assert(s);
179
180 if (s->socket_fd < 0)
181 return;
182
183 close_nointr_nofail(s->socket_fd);
184 s->socket_fd = -1;
185}
186
6cf6bbc2
LP		 187static void service_connection_unref(Service *s) {
188 assert(s);
189
f976f3f6 190 if (!s->accept_socket)
6cf6bbc2
LP		 191 return;
192
f976f3f6
LP		 193 socket_connection_unref(s->accept_socket);
194 s->accept_socket = NULL;
6cf6bbc2
LP		 195}
196
87f0e418
LP		 197static void service_done(Unit *u) {
198 Service *s = SERVICE(u);
44d8db9e
LP		 199
200 assert(s);
201
202 free(s->pid_file);
203 s->pid_file = NULL;
204
07459bb6 205#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 206 free(s->sysv_path);
207 s->sysv_path = NULL;
208
8309400a
LP		 209 free(s->sysv_runlevels);
210 s->sysv_runlevels = NULL;
07459bb6 211#endif
8309400a 212
8c47c732
LP		 213 free(s->status_text);
214 s->status_text = NULL;
215
44d8db9e 216 exec_context_done(&s->exec_context);
e537352b 217 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 218 s->control_command = NULL;
867b3b7d 219 s->main_command = NULL;
44d8db9e
LP		 220
221 /* This will leak a process, but at least no memory or any of
222 * our resources */
5e94833f
LP		 223 service_unwatch_main_pid(s);
224 service_unwatch_control_pid(s);
44d8db9e 225
05e343b7
LP		 226 if (s->bus_name) {
227 unit_unwatch_bus_name(UNIT(u), s->bus_name);
228 free(s->bus_name);
229 s->bus_name = NULL;
230 }
231
4f2d528d 232 service_close_socket_fd(s);
6cf6bbc2 233 service_connection_unref(s);
4f2d528d 234
f976f3f6
LP		 235 set_free(s->configured_sockets);
236
acbb0225 237 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 238}
239
07459bb6 240#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 241static char *sysv_translate_name(const char *name) {
242 char *r;
243
244 if (!(r = new(char, strlen(name) + sizeof(".service"))))
245 return NULL;
246
1bd8b818 247#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198
MB		 248 if (endswith(name, ".sh"))
249 /* Drop Debian-style .sh suffix */
250 strcpy(stpcpy(r, name) - 3, ".service");
251#endif
252#ifdef TARGET_SUSE
b7ccee3c
LP		 253 if (startswith(name, "boot."))
254 /* Drop SuSE-style boot. prefix */
255 strcpy(stpcpy(r, name + 5), ".service");
5b819198 256#endif
65530632 257#ifdef TARGET_FRUGALWARE
5b819198 258 if (startswith(name, "rc."))
65530632
MV		 259 /* Drop Frugalware-style rc. prefix */
260 strcpy(stpcpy(r, name + 3), ".service");
980900c1 261#endif
b7ccee3c
LP		 262 else
263 /* Normal init scripts */
264 strcpy(stpcpy(r, name), ".service");
265
266 return r;
267}
268
ee95669f 269static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 270
a7d3cc26
LP		 271 /* We silently ignore the $ prefix here. According to the LSB
272 * spec it simply indicates whether something is a
273 * standardized name or a distribution-specific one. Since we
274 * just follow what already exists and do not introduce new
275 * uses or names we don't care who introduced a new name. */
276
2c4104f0 277 static const char * const table[] = {
6464aa08 278 /* LSB defined facilities */
a7d3cc26 279 "local_fs", SPECIAL_LOCAL_FS_TARGET,
6fdae8a6
DM		 280#if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
281#else
8d0e38a2
LP		 282 /* Due to unfortunate name selection in Mandriva,
283 * $network is provided by network-up which is ordered
284 * after network which actually starts interfaces.
285 * To break the loop, just ignore it */
a7d3cc26 286 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 287#endif
a7d3cc26
LP		 288 "named", SPECIAL_NSS_LOOKUP_TARGET,
289 "portmap", SPECIAL_RPCBIND_TARGET,
290 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
291 "syslog", SPECIAL_SYSLOG_TARGET,
4466194c 292 "time", SPECIAL_TIME_SYNC_TARGET,
6464aa08 293
0b603b4e
KS		 294 /* common extensions */
295 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
296 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
297 "null", NULL,
298
1bd8b818 299#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
a7d3cc26 300 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 301#endif
3177a49c
LP		 302
303#ifdef TARGET_FEDORA
a7d3cc26
LP		 304 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
305 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
306 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 307#endif
a7d3cc26 308
0b603b4e
KS		 309#ifdef TARGET_SUSE
310 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
311#endif
2c4104f0
LP		 312 };
313
314 unsigned i;
315 char *r;
ee95669f 316 const char *n;
2c4104f0 317
ee95669f
LP		 318 assert(name);
319 assert(_r);
a7d3cc26 320
ee95669f 321 n = *name == '$' ? name + 1 : name;
a7d3cc26 322
ee95669f 323 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 324
ee95669f
LP		 325 if (!streq(table[i], n))
326 continue;
2c4104f0 327
ee95669f
LP		 328 if (!table[i+1])
329 return 0;
330
331 if (!(r = strdup(table[i+1])))
332 return -ENOMEM;
333
334 goto finish;
335 }
2c4104f0 336
a7d3cc26 337 /* If we don't know this name, fallback heuristics to figure
0003d1ab 338 * out whether something is a target or a service alias. */
a7d3cc26 339
e83c7c0b
LP		 340 if (*name == '$') {
341 if (!unit_prefix_is_valid(n))
342 return -EINVAL;
343
ee95669f
LP		 344 /* Facilities starting with $ are most likely targets */
345 r = unit_name_build(n, NULL, ".target");
e83c7c0b 346 } else if (filename && streq(name, filename))
35b8ca3a 347 /* Names equaling the file name of the services are redundant */
ee95669f 348 return 0;
32159d3a 349 else
ee95669f
LP		 350 /* Everything else we assume to be normal service names */
351 r = sysv_translate_name(n);
2c4104f0 352
32159d3a 353 if (!r)
2c4104f0
LP		 354 return -ENOMEM;
355
356finish:
b4353094 357 *_r = r;
2c4104f0
LP		 358
359 return 1;
360}
361
56d748b4 362static int sysv_fix_order(Service *s) {
2c4104f0
LP		 363 Meta *other;
364 int r;
365
366 assert(s);
367
368 if (s->sysv_start_priority < 0)
369 return 0;
370
23a177ef
LP		 371 /* For each pair of services where at least one lacks a LSB
372 * header, we use the start priority value to order things. */
2c4104f0 373
ab5c3e3f 374 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
2c4104f0
LP		 375 Service *t;
376 UnitDependency d;
eeaafddc 377 bool special_s, special_t;
2c4104f0
LP		 378
379 t = (Service*) other;
380
381 if (s == t)
382 continue;
9f151f29
LP		 383
384 if (t->meta.load_state != UNIT_LOADED)
385 continue;
2c4104f0
LP		 386
387 if (t->sysv_start_priority < 0)
388 continue;
389
51a1a79d
LP		 390 /* If both units have modern headers we don't care
391 * about the priorities */
f21781d5
LP		 392 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
393 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 394 continue;
395
eeaafddc
LP		 396 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
397 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
398
399 if (special_t && !special_s)
400 d = UNIT_AFTER;
401 else if (special_s && !special_t)
402 d = UNIT_BEFORE;
403 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 404 d = UNIT_AFTER;
405 else if (t->sysv_start_priority > s->sysv_start_priority)
406 d = UNIT_BEFORE;
407 else
408 continue;
409
410 /* FIXME: Maybe we should compare the name here lexicographically? */
411
da19d5c1 412 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 413 return r;
414 }
415
416 return 0;
417}
418
419static ExecCommand *exec_command_new(const char *path, const char *arg1) {
420 ExecCommand *c;
421
422 if (!(c = new0(ExecCommand, 1)))
423 return NULL;
424
425 if (!(c->path = strdup(path))) {
426 free(c);
427 return NULL;
428 }
429
430 if (!(c->argv = strv_new(path, arg1, NULL))) {
431 free(c->path);
432 free(c);
433 return NULL;
434 }
435
436 return c;
437}
438
439static int sysv_exec_commands(Service *s) {
440 ExecCommand *c;
441
442 assert(s);
443 assert(s->sysv_path);
444
445 if (!(c = exec_command_new(s->sysv_path, "start")))
446 return -ENOMEM;
447 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
448
449 if (!(c = exec_command_new(s->sysv_path, "stop")))
450 return -ENOMEM;
451 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
452
453 if (!(c = exec_command_new(s->sysv_path, "reload")))
454 return -ENOMEM;
455 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
456
457 return 0;
458}
459
e537352b 460static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 461 FILE *f;
462 Unit *u;
463 unsigned line = 0;
464 int r;
465 enum {
466 NORMAL,
467 DESCRIPTION,
468 LSB,
469 LSB_DESCRIPTION
470 } state = NORMAL;
0b5d26f9 471 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
5f4b19f4 472 struct stat st;
23a177ef
LP		 473
474 assert(s);
475 assert(path);
2c4104f0
LP		 476
477 u = UNIT(s);
478
479 if (!(f = fopen(path, "re"))) {
480 r = errno == ENOENT ? 0 : -errno;
481 goto finish;
482 }
483
5f4b19f4
LP		 484 zero(st);
485 if (fstat(fileno(f), &st) < 0) {
486 r = -errno;
487 goto finish;
488 }
489
2c4104f0
LP		 490 free(s->sysv_path);
491 if (!(s->sysv_path = strdup(path))) {
492 r = -ENOMEM;
493 goto finish;
494 }
495
5f4b19f4
LP		 496 s->sysv_mtime = timespec_load(&st.st_mtim);
497
498 if (null_or_empty(&st)) {
499 u->meta.load_state = UNIT_MASKED;
500 r = 0;
501 goto finish;
502 }
503
2c4104f0
LP		 504 while (!feof(f)) {
505 char l[LINE_MAX], *t;
506
507 if (!fgets(l, sizeof(l), f)) {
508 if (feof(f))
509 break;
510
511 r = -errno;
512 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
513 goto finish;
514 }
515
516 line++;
517
518 t = strstrip(l);
519 if (*t != '#')
520 continue;
521
522 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
523 state = LSB;
23a177ef 524 s->sysv_has_lsb = true;
2c4104f0
LP		 525 continue;
526 }
527
528 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
529 state = NORMAL;
530 continue;
531 }
532
533 t++;
534 t += strspn(t, WHITESPACE);
535
536 if (state == NORMAL) {
537
538 /* Try to parse Red Hat style chkconfig headers */
539
c2b35af6 540 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 541 int start_priority;
8309400a 542 char runlevels[16], *k;
2c4104f0
LP		 543
544 state = NORMAL;
545
8309400a
LP		 546 if (sscanf(t+10, "%15s %i %*i",
547 runlevels,
548 &start_priority) != 2) {
2c4104f0
LP		 549
550 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
551 continue;
552 }
553
fbe9f3a9
LP		 554 /* A start priority gathered from the
555 * symlink farms is preferred over the
556 * data from the LSB header. */
8309400a 557 if (start_priority < 0 || start_priority > 99)
2c4104f0 558 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
ea87ca5a 559 else
8309400a
LP		 560 s->sysv_start_priority = start_priority;
561
562 char_array_0(runlevels);
563 k = delete_chars(runlevels, WHITESPACE "-");
564
565 if (k[0]) {
566 char *d;
567
568 if (!(d = strdup(k))) {
569 r = -ENOMEM;
570 goto finish;
571 }
572
573 free(s->sysv_runlevels);
574 s->sysv_runlevels = d;
2c4104f0
LP		 575 }
576
0b5d26f9 577 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 578
579 size_t k = strlen(t);
580 char *d;
0b5d26f9 581 const char *j;
2c4104f0
LP		 582
583 if (t[k-1] == '\\') {
584 state = DESCRIPTION;
585 t[k-1] = 0;
586 }
587
0b5d26f9
LP		 588 if ((j = strstrip(t+12)) && *j) {
589 if (!(d = strdup(j))) {
590 r = -ENOMEM;
591 goto finish;
592 }
593 } else
594 d = NULL;
2c4104f0 595
0b5d26f9
LP		 596 free(chkconfig_description);
597 chkconfig_description = d;
2c4104f0 598
c2b35af6 599 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 600
601 char *fn;
602
603 state = NORMAL;
604
605 fn = strstrip(t+8);
606 if (!path_is_absolute(fn)) {
607 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
608 continue;
609 }
610
611 if (!(fn = strdup(fn))) {
612 r = -ENOMEM;
613 goto finish;
614 }
615
616 free(s->pid_file);
617 s->pid_file = fn;
618 }
619
620 } else if (state == DESCRIPTION) {
621
622 /* Try to parse Red Hat style description
623 * continuation */
624
625 size_t k = strlen(t);
0b5d26f9 626 char *j;
2c4104f0
LP		 627
628 if (t[k-1] == '\\')
629 t[k-1] = 0;
630 else
631 state = NORMAL;
632
0b5d26f9
LP		 633 if ((j = strstrip(t)) && *j) {
634 char *d = NULL;
635
636 if (chkconfig_description)
44d91056 637 d = join(chkconfig_description, " ", j, NULL);
0b5d26f9
LP		 638 else
639 d = strdup(j);
2c4104f0 640
0b5d26f9
LP		 641 if (!d) {
642 r = -ENOMEM;
643 goto finish;
644 }
645
646 free(chkconfig_description);
647 chkconfig_description = d;
648 }
2c4104f0
LP		 649
650 } else if (state == LSB || state == LSB_DESCRIPTION) {
651
c2b35af6 652 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 653 char *i, *w;
654 size_t z;
655
656 state = LSB;
657
f60f22df 658 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 659 char *n, *m;
660
661 if (!(n = strndup(w, z))) {
662 r = -ENOMEM;
663 goto finish;
664 }
665
ee95669f 666 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 667 free(n);
668
669 if (r < 0)
670 goto finish;
671
672 if (r == 0)
673 continue;
674
bd77d0fc
LP		 675 if (unit_name_to_type(m) == UNIT_SERVICE)
676 r = unit_add_name(u, m);
9700edb4
LP		 677 else
678 /* NB: SysV targets
679 * which are provided
680 * by a service are
681 * pulled in by the
682 * services, as an
683 * indication that the
684 * generic service is
685 * now available. This
686 * is strictly
687 * one-way. The
688 * targets do NOT pull
689 * in the SysV
690 * services! */
691 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
bd77d0fc 692
2c4104f0 693 if (r < 0)
43a37549 694 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 695
696 free(m);
2c4104f0
LP		 697 }
698
c2b35af6
LP		 699 } else if (startswith_no_case(t, "Required-Start:") ||
700 startswith_no_case(t, "Should-Start:") ||
701 startswith_no_case(t, "X-Start-Before:") ||
702 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 703 char *i, *w;
704 size_t z;
705
706 state = LSB;
707
f60f22df 708 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 709 char *n, *m;
710
711 if (!(n = strndup(w, z))) {
712 r = -ENOMEM;
713 goto finish;
714 }
715
ee95669f 716 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 717
e83c7c0b
LP		 718 if (r < 0) {
719 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
720 free(n);
721 continue;
722 }
723
724 free(n);
2c4104f0
LP		 725
726 if (r == 0)
727 continue;
728
c2b35af6 729 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 730
731 if (r < 0)
43a37549 732 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 733
734 free(m);
2c4104f0 735 }
c2b35af6 736 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 737 char *k, *d;
738
739 state = LSB;
740
741 k = delete_chars(t+14, WHITESPACE "-");
742
743 if (k[0] != 0) {
744 if (!(d = strdup(k))) {
745 r = -ENOMEM;
746 goto finish;
747 }
748
749 free(s->sysv_runlevels);
750 s->sysv_runlevels = d;
751 }
2c4104f0 752
0b5d26f9
LP		 753 } else if (startswith_no_case(t, "Description:")) {
754 char *d, *j;
ed4c1cc6 755
2c4104f0
LP		 756 state = LSB_DESCRIPTION;
757
0b5d26f9
LP		 758 if ((j = strstrip(t+12)) && *j) {
759 if (!(d = strdup(j))) {
760 r = -ENOMEM;
761 goto finish;
762 }
763 } else
764 d = NULL;
2c4104f0 765
0b5d26f9
LP		 766 free(long_description);
767 long_description = d;
2c4104f0 768
ed4c1cc6 769 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 770 char *d, *j;
2c4104f0 771
2c4104f0
LP		 772 state = LSB;
773
0b5d26f9
LP		 774 if ((j = strstrip(t+18)) && *j) {
775 if (!(d = strdup(j))) {
776 r = -ENOMEM;
777 goto finish;
778 }
779 } else
780 d = NULL;
2c4104f0 781
0b5d26f9
LP		 782 free(short_description);
783 short_description = d;
2c4104f0
LP		 784
785 } else if (state == LSB_DESCRIPTION) {
786
787 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 788 char *j;
2c4104f0 789
0b5d26f9
LP		 790 if ((j = strstrip(t)) && *j) {
791 char *d = NULL;
792
793 if (long_description)
44d91056 794 d = join(long_description, " ", t, NULL);
0b5d26f9
LP		 795 else
796 d = strdup(j);
797
798 if (!d) {
799 r = -ENOMEM;
800 goto finish;
801 }
802
803 free(long_description);
804 long_description = d;
2c4104f0
LP		 805 }
806
2c4104f0
LP		 807 } else
808 state = LSB;
809 }
810 }
811 }
812
2c4104f0
LP		 813 if ((r = sysv_exec_commands(s)) < 0)
814 goto finish;
e51db373
TFH		 815 if (s->sysv_runlevels &&
816 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
817 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
818 /* Service has both boot and "up" runlevels
819 configured. Kill the "up" ones. */
820 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
821 }
2c4104f0 822
a40eb732 823 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 824 /* If there a runlevels configured for this service
825 * but none of the standard ones, then we assume this
826 * is some special kind of service (which might be
827 * needed for early boot) and don't create any links
828 * to it. */
829
a40eb732 830 s->meta.default_dependencies = false;
09cd1ab1 831
09cd1ab1
LP		 832 /* Don't timeout special services during boot (like fsck) */
833 s->timeout_usec = 0;
f34277d9
LP		 834 } else
835 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 836
80876c20 837 /* Special setting for all SysV services */
1f48cf56 838 s->type = SERVICE_FORKING;
f8788303 839 s->remain_after_exit = !s->pid_file;
1835f23c 840 s->guess_main_pid = false;
525ee6f4 841 s->restart = SERVICE_RESTART_NO;
4dfc092a
LP		 842
843 if (s->meta.manager->sysv_console)
844 s->exec_context.std_output = EXEC_OUTPUT_TTY;
845
cd25cce9 846 s->exec_context.kill_mode = KILL_PROCESS;
80876c20 847
0b5d26f9
LP		 848 /* We use the long description only if
849 * no short description is set. */
850
851 if (short_description)
852 description = short_description;
853 else if (chkconfig_description)
854 description = chkconfig_description;
855 else if (long_description)
856 description = long_description;
857 else
858 description = NULL;
859
860 if (description) {
861 char *d;
862
e527618d 863 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 864 r = -ENOMEM;
865 goto finish;
866 }
867
868 u->meta.description = d;
869 }
870
ea87ca5a
LP		 871 /* The priority that has been set in /etc/rcN.d/ hierarchies
872 * takes precedence over what is stored as default in the LSB
873 * header */
874 if (s->sysv_start_priority_from_rcnd >= 0)
875 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
876
e537352b 877 u->meta.load_state = UNIT_LOADED;
23a177ef 878 r = 0;
2c4104f0
LP		 879
880finish:
881
882 if (f)
883 fclose(f);
884
0b5d26f9
LP		 885 free(short_description);
886 free(long_description);
887 free(chkconfig_description);
888
2c4104f0
LP		 889 return r;
890}
891
e537352b 892static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 893 char **p;
894
895 assert(s);
896 assert(name);
897
e1992852 898 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 899 * prefixes/suffixes. */
1bd8b818 900#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
5b819198 901 if (endswith(name, ".sh.service"))
d017c6ca 902 return -ENOENT;
5b819198
MB		 903#endif
904
905#ifdef TARGET_SUSE
906 if (startswith(name, "boot."))
907 return -ENOENT;
908#endif
909
910#ifdef TARGET_FRUGALWARE
911 if (startswith(name, "rc."))
912 return -ENOENT;
913#endif
d017c6ca 914
4cd1fbcc 915 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 916 char *path;
917 int r;
918
44d91056
LP		 919 path = join(*p, "/", name, NULL);
920 if (!path)
2c4104f0
LP		 921 return -ENOMEM;
922
923 assert(endswith(path, ".service"));
924 path[strlen(path)-8] = 0;
925
e537352b 926 r = service_load_sysv_path(s, path);
fbe9f3a9 927
1bd8b818 928#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
4cd1fbcc 929 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 930 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 931 strcat(path, ".sh");
932 r = service_load_sysv_path(s, path);
933 }
e1992852 934#endif
2c4104f0
LP		 935 free(path);
936
e1992852 937#ifdef TARGET_SUSE
4cd1fbcc 938 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 939 /* Try SUSE style boot.* init scripts */
fbe9f3a9 940
44d91056
LP		 941 path = join(*p, "/boot.", name, NULL);
942 if (!path)
fbe9f3a9
LP		 943 return -ENOMEM;
944
e1992852 945 /* Drop .service suffix */
fbe9f3a9
LP		 946 path[strlen(path)-8] = 0;
947 r = service_load_sysv_path(s, path);
948 free(path);
949 }
e1992852 950#endif
fbe9f3a9 951
e1992852 952#ifdef TARGET_FRUGALWARE
65530632 953 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 954 /* Try Frugalware style rc.* init scripts */
65530632 955
44d91056
LP		 956 path = join(*p, "/rc.", name, NULL);
957 if (!path)
65530632
MV		 958 return -ENOMEM;
959
e1992852 960 /* Drop .service suffix */
65530632
MV		 961 path[strlen(path)-8] = 0;
962 r = service_load_sysv_path(s, path);
963 free(path);
964 }
e1992852 965#endif
65530632 966
23a177ef 967 if (r < 0)
2c4104f0 968 return r;
23a177ef 969
4cd1fbcc 970 if ((s->meta.load_state != UNIT_STUB))
23a177ef 971 break;
2c4104f0
LP		 972 }
973
974 return 0;
975}
976
e537352b 977static int service_load_sysv(Service *s) {
2c4104f0
LP		 978 const char *t;
979 Iterator i;
980 int r;
981
5cb5a6ff
LP		 982 assert(s);
983
984 /* Load service data from SysV init scripts, preferably with
985 * LSB headers ... */
986
4cd1fbcc 987 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 988 return 0;
989
4cd1fbcc 990 if ((t = s->meta.id))
e537352b 991 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 992 return r;
993
4cd1fbcc
LP		 994 if (s->meta.load_state == UNIT_STUB)
995 SET_FOREACH(t, s->meta.names, i) {
996 if (t == s->meta.id)
e537352b
LP		 997 continue;
998
e364ad06 999 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 1000 return r;
1001
4cd1fbcc 1002 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 1003 break;
1004 }
2c4104f0
LP		 1005
1006 return 0;
5cb5a6ff 1007}
07459bb6 1008#endif
5cb5a6ff 1009
9fff8a1f
LP		 1010static int fsck_fix_order(Service *s) {
1011 Meta *other;
1012 int r;
1013
1014 assert(s);
1015
1016 if (s->fsck_passno <= 0)
1017 return 0;
1018
1019 /* For each pair of services where both have an fsck priority
1020 * we order things based on it. */
1021
ab5c3e3f 1022 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
9fff8a1f
LP		 1023 Service *t;
1024 UnitDependency d;
1025
1026 t = (Service*) other;
1027
1028 if (s == t)
1029 continue;
1030
1031 if (t->meta.load_state != UNIT_LOADED)
1032 continue;
1033
1034 if (t->fsck_passno <= 0)
1035 continue;
1036
1037 if (t->fsck_passno < s->fsck_passno)
1038 d = UNIT_AFTER;
1039 else if (t->fsck_passno > s->fsck_passno)
1040 d = UNIT_BEFORE;
1041 else
1042 continue;
1043
da19d5c1 1044 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
9fff8a1f
LP		 1045 return r;
1046 }
1047
1048 return 0;
1049}
1050
243b1432
LP		 1051static int service_verify(Service *s) {
1052 assert(s);
1053
4cd1fbcc 1054 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1055 return 0;
1056
1057 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1058 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1059 return -EINVAL;
1060 }
1061
34e9ba66
LP		 1062 if (s->type != SERVICE_ONESHOT &&
1063 s->exec_command[SERVICE_EXEC_START]->command_next) {
1064 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1065 return -EINVAL;
1066 }
1067
c06b7a15
LP		 1068 if (s->type == SERVICE_ONESHOT &&
1069 s->exec_command[SERVICE_EXEC_RELOAD]) {
1070 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1071 return -EINVAL;
1072 }
1073
05e343b7 1074 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1075 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1076 return -EINVAL;
1077 }
1078
2e22afe9 1079 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1080 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1081 return -EINVAL;
1082 }
1083
243b1432
LP		 1084 return 0;
1085}
1086
a40eb732
LP		 1087static int service_add_default_dependencies(Service *s) {
1088 int r;
1089
1090 assert(s);
1091
1092 /* Add a number of automatic dependencies useful for the
1093 * majority of services. */
1094
1095 /* First, pull in base system */
1096 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1097
1098 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1099 return r;
1100
af2d49f7 1101 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1102
1103 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1104 return r;
1105 }
1106
1107 /* Second, activate normal shutdown */
ead8e478 1108 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1109}
1110
4dfc092a
LP		 1111static void service_fix_output(Service *s) {
1112 assert(s);
1113
1114 /* If nothing has been explicitly configured, patch default
1115 * output in. If input is socket/tty we avoid this however,
1116 * since in that case we want output to default to the same
1117 * place as we read input from. */
1118
1119 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1120 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1121 s->exec_context.std_input == EXEC_INPUT_NULL)
1122 s->exec_context.std_error = s->meta.manager->default_std_error;
1123
1124 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1125 s->exec_context.std_input == EXEC_INPUT_NULL)
1126 s->exec_context.std_output = s->meta.manager->default_std_output;
1127}
1128
e537352b
LP		 1129static int service_load(Unit *u) {
1130 int r;
1131 Service *s = SERVICE(u);
1132
1133 assert(s);
1e2e8133 1134
5cb5a6ff 1135 /* Load a .service file */
e537352b 1136 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1137 return r;
1138
07459bb6 1139#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1140 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1141 if (u->meta.load_state == UNIT_STUB)
1142 if ((r = service_load_sysv(s)) < 0)
23a177ef 1143 return r;
07459bb6 1144#endif
d46de8a1 1145
23a177ef 1146 /* Still nothing found? Then let's give up */
e537352b 1147 if (u->meta.load_state == UNIT_STUB)
23a177ef 1148 return -ENOENT;
034c6ed7 1149
23a177ef
LP		 1150 /* We were able to load something, then let's add in the
1151 * dropin directories. */
1152 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1153 return r;
23a177ef
LP		 1154
1155 /* This is a new unit? Then let's add in some extras */
e537352b 1156 if (u->meta.load_state == UNIT_LOADED) {
4e2b0f9b
LP		 1157 service_fix_output(s);
1158
23a177ef
LP		 1159 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1160 return r;
1161
d686d8a9 1162 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1163 return r;
1164
07459bb6 1165#ifdef HAVE_SYSV_COMPAT
56d748b4 1166 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1167 return r;
07459bb6 1168#endif
05e343b7 1169
9fff8a1f
LP		 1170 if ((r = fsck_fix_order(s)) < 0)
1171 return r;
1172
ee0dd802 1173 if (s->bus_name)
05e343b7 1174 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1175 return r;
c952c6ec
LP		 1176
1177 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1178 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1179
1180 if (s->type == SERVICE_DBUS || s->bus_name)
177b3ffe 1181 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
a40eb732
LP		 1182 return r;
1183
1184 if (s->meta.default_dependencies)
1185 if ((r = service_add_default_dependencies(s)) < 0)
1186 return r;
8e274523
LP		 1187 }
1188
243b1432 1189 return service_verify(s);
034c6ed7
LP		 1190}
1191
87f0e418 1192static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1193
5cb5a6ff 1194 ServiceExecCommand c;
87f0e418 1195 Service *s = SERVICE(u);
47be870b
LP		 1196 const char *prefix2;
1197 char *p2;
5cb5a6ff
LP		 1198
1199 assert(s);
1200
47be870b
LP		 1201 p2 = strappend(prefix, "\t");
1202 prefix2 = p2 ? p2 : prefix;
44d8db9e 1203
5cb5a6ff 1204 fprintf(f,
81a2b7ce
LP		 1205 "%sService State: %s\n"
1206 "%sPermissionsStartOnly: %s\n"
8e274523 1207 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1208 "%sRemainAfterExit: %s\n"
3185a36b 1209 "%sGuessMainPID: %s\n"
c952c6ec 1210 "%sType: %s\n"
2cf3143a 1211 "%sRestart: %s\n"
c952c6ec 1212 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1213 prefix, service_state_to_string(s->state),
1214 prefix, yes_no(s->permissions_start_only),
8e274523 1215 prefix, yes_no(s->root_directory_start_only),
02ee865a 1216 prefix, yes_no(s->remain_after_exit),
3185a36b 1217 prefix, yes_no(s->guess_main_pid),
c952c6ec 1218 prefix, service_type_to_string(s->type),
2cf3143a 1219 prefix, service_restart_to_string(s->restart),
c952c6ec 1220 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1221
70123e68
LP		 1222 if (s->control_pid > 0)
1223 fprintf(f,
bb00e604
LP		 1224 "%sControl PID: %lu\n",
1225 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1226
1227 if (s->main_pid > 0)
1228 fprintf(f,
6dfa5494
LP		 1229 "%sMain PID: %lu\n"
1230 "%sMain PID Known: %s\n"
1231 "%sMain PID Alien: %s\n",
1232 prefix, (unsigned long) s->main_pid,
1233 prefix, yes_no(s->main_pid_known),
1234 prefix, yes_no(s->main_pid_alien));
70123e68 1235
034c6ed7
LP		 1236 if (s->pid_file)
1237 fprintf(f,
1238 "%sPIDFile: %s\n",
1239 prefix, s->pid_file);
1240
05e343b7
LP		 1241 if (s->bus_name)
1242 fprintf(f,
1243 "%sBusName: %s\n"
1244 "%sBus Name Good: %s\n",
1245 prefix, s->bus_name,
1246 prefix, yes_no(s->bus_name_good));
1247
5cb5a6ff
LP		 1248 exec_context_dump(&s->exec_context, f, prefix);
1249
e537352b 1250 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1251
44d8db9e
LP		 1252 if (!s->exec_command[c])
1253 continue;
1254
40d50879 1255 fprintf(f, "%s-> %s:\n",
94f04347 1256 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1257
1258 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1259 }
44d8db9e 1260
07459bb6 1261#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1262 if (s->sysv_path)
1263 fprintf(f,
23a177ef 1264 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1265 "%sSysV Init Script has LSB Header: %s\n"
1266 "%sSysVEnabled: %s\n",
23a177ef 1267 prefix, s->sysv_path,
9fff8a1f
LP		 1268 prefix, yes_no(s->sysv_has_lsb),
1269 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1270
1271 if (s->sysv_start_priority >= 0)
1272 fprintf(f,
9fff8a1f
LP		 1273 "%sSysVStartPriority: %i\n",
1274 prefix, s->sysv_start_priority);
2c4104f0 1275
8309400a
LP		 1276 if (s->sysv_runlevels)
1277 fprintf(f, "%sSysVRunLevels: %s\n",
1278 prefix, s->sysv_runlevels);
07459bb6 1279#endif
23a177ef 1280
9fff8a1f
LP		 1281 if (s->fsck_passno > 0)
1282 fprintf(f,
1283 "%sFsckPassNo: %i\n",
1284 prefix, s->fsck_passno);
1285
8c47c732
LP		 1286 if (s->status_text)
1287 fprintf(f, "%sStatus Text: %s\n",
1288 prefix, s->status_text);
1289
47be870b 1290 free(p2);
5cb5a6ff
LP		 1291}
1292
5375410b 1293static int service_load_pid_file(Service *s, bool warn_if_missing) {
034c6ed7 1294 char *k;
034c6ed7 1295 int r;
5925dd3c 1296 pid_t pid;
034c6ed7
LP		 1297
1298 assert(s);
1299
034c6ed7 1300 if (!s->pid_file)
13230d5d 1301 return -ENOENT;
034c6ed7 1302
5375410b
MS		 1303 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1304 if (warn_if_missing)
1305 log_warning("Failed to read PID file %s after %s. The service might be broken.",
1306 s->pid_file, service_state_to_string(s->state));
034c6ed7 1307 return r;
5375410b 1308 }
034c6ed7 1309
5925dd3c
LP		 1310 r = parse_pid(k, &pid);
1311 free(k);
034c6ed7 1312
5925dd3c
LP		 1313 if (r < 0)
1314 return r;
406eaf93 1315
5925dd3c
LP		 1316 if (kill(pid, 0) < 0 && errno != EPERM) {
1317 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1318 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1319 return -ESRCH;
1320 }
1321
db01f8b3
MS		 1322 if (s->main_pid_known) {
1323 if (pid == s->main_pid)
1324 return 0;
1325
1326 log_debug("Main PID changing: %lu -> %lu",
1327 (unsigned long) s->main_pid, (unsigned long) pid);
1328 service_unwatch_main_pid(s);
1329 s->main_pid_known = false;
1330 }
1331
5925dd3c 1332 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1333 return r;
1334
5925dd3c
LP		 1335 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1336 /* FIXME: we need to do something here */
1337 return r;
034c6ed7
LP		 1338
1339 return 0;
1340}
1341
4fbf50b3
LP		 1342static int service_search_main_pid(Service *s) {
1343 pid_t pid;
1344 int r;
1345
1346 assert(s);
1347
3185a36b
LP		 1348 /* If we know it anyway, don't ever fallback to unreliable
1349 * heuristics */
4fbf50b3
LP		 1350 if (s->main_pid_known)
1351 return 0;
1352
3185a36b
LP		 1353 if (!s->guess_main_pid)
1354 return 0;
1355
4fbf50b3
LP		 1356 assert(s->main_pid <= 0);
1357
1358 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1359 return -ENOENT;
1360
1361 if ((r = service_set_main_pid(s, pid)) < 0)
1362 return r;
1363
1364 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1365 /* FIXME: we need to do something here */
1366 return r;
1367
1368 return 0;
1369}
1370
3e33402a
LP		 1371static int service_get_sockets(Service *s, Set **_set) {
1372 Set *set;
ceee3d82
LP		 1373 Iterator i;
1374 char *t;
3e33402a 1375 int r;
ceee3d82
LP		 1376
1377 assert(s);
3e33402a
LP		 1378 assert(_set);
1379
6cf6bbc2
LP		 1380 if (s->socket_fd >= 0)
1381 return 0;
1382
f976f3f6
LP		 1383 if (!set_isempty(s->configured_sockets))
1384 return 0;
1385
3e33402a
LP		 1386 /* Collects all Socket objects that belong to this
1387 * service. Note that a service might have multiple sockets
1388 * via multiple names. */
1389
1390 if (!(set = set_new(NULL, NULL)))
1391 return -ENOMEM;
ceee3d82 1392
4cd1fbcc 1393 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1394 char *k;
1395 Unit *p;
1396
1397 /* Look for all socket objects that go by any of our
1398 * units and collect their fds */
1399
3e33402a
LP		 1400 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1401 r = -ENOMEM;
1402 goto fail;
1403 }
ceee3d82 1404
4cd1fbcc 1405 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1406 free(k);
1407
8d567588
LP		 1408 if (!p)
1409 continue;
ceee3d82 1410
3e33402a
LP		 1411 if ((r = set_put(set, p)) < 0)
1412 goto fail;
ceee3d82
LP		 1413 }
1414
3e33402a
LP		 1415 *_set = set;
1416 return 0;
1417
1418fail:
1419 set_free(set);
1420 return r;
1421}
1422
e537352b 1423static int service_notify_sockets_dead(Service *s) {
3e33402a 1424 Iterator i;
f976f3f6 1425 Set *set, *free_set = NULL;
47be870b 1426 Socket *sock;
3e33402a
LP		 1427 int r;
1428
1429 assert(s);
1430
f976f3f6
LP		 1431 /* Notifies all our sockets when we die */
1432
6cf6bbc2
LP		 1433 if (s->socket_fd >= 0)
1434 return 0;
1435
f976f3f6
LP		 1436 if (!set_isempty(s->configured_sockets))
1437 set = s->configured_sockets;
1438 else {
1439 if ((r = service_get_sockets(s, &free_set)) < 0)
1440 return r;
1441
1442 set = free_set;
1443 }
3e33402a 1444
47be870b
LP		 1445 SET_FOREACH(sock, set, i)
1446 socket_notify_service_dead(sock);
3e33402a 1447
f976f3f6 1448 set_free(free_set);
3e33402a 1449
ceee3d82
LP		 1450 return 0;
1451}
1452
034c6ed7
LP		 1453static void service_set_state(Service *s, ServiceState state) {
1454 ServiceState old_state;
5cb5a6ff
LP		 1455 assert(s);
1456
034c6ed7 1457 old_state = s->state;
5cb5a6ff 1458 s->state = state;
034c6ed7
LP		 1459
1460 if (state != SERVICE_START_PRE &&
1461 state != SERVICE_START &&
1462 state != SERVICE_START_POST &&
1463 state != SERVICE_RELOAD &&
1464 state != SERVICE_STOP &&
1465 state != SERVICE_STOP_SIGTERM &&
1466 state != SERVICE_STOP_SIGKILL &&
1467 state != SERVICE_STOP_POST &&
1468 state != SERVICE_FINAL_SIGTERM &&
1469 state != SERVICE_FINAL_SIGKILL &&
1470 state != SERVICE_AUTO_RESTART)
acbb0225 1471 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1472
7d55e835
LP		 1473 if (state != SERVICE_START &&
1474 state != SERVICE_START_POST &&
034c6ed7
LP		 1475 state != SERVICE_RUNNING &&
1476 state != SERVICE_RELOAD &&
1477 state != SERVICE_STOP &&
1478 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1479 state != SERVICE_STOP_SIGKILL) {
5e94833f 1480 service_unwatch_main_pid(s);
867b3b7d
LP		 1481 s->main_command = NULL;
1482 }
034c6ed7
LP		 1483
1484 if (state != SERVICE_START_PRE &&
1485 state != SERVICE_START &&
1486 state != SERVICE_START_POST &&
1487 state != SERVICE_RELOAD &&
1488 state != SERVICE_STOP &&
1489 state != SERVICE_STOP_SIGTERM &&
1490 state != SERVICE_STOP_SIGKILL &&
1491 state != SERVICE_STOP_POST &&
1492 state != SERVICE_FINAL_SIGTERM &&
e537352b 1493 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1494 service_unwatch_control_pid(s);
034c6ed7 1495 s->control_command = NULL;
a16e1123 1496 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1497 }
034c6ed7 1498
ceee3d82
LP		 1499 if (state == SERVICE_DEAD ||
1500 state == SERVICE_STOP ||
1501 state == SERVICE_STOP_SIGTERM ||
1502 state == SERVICE_STOP_SIGKILL ||
1503 state == SERVICE_STOP_POST ||
1504 state == SERVICE_FINAL_SIGTERM ||
1505 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1506 state == SERVICE_FAILED ||
ceee3d82 1507 state == SERVICE_AUTO_RESTART)
e537352b 1508 service_notify_sockets_dead(s);
ceee3d82 1509
4f2d528d
LP		 1510 if (state != SERVICE_START_PRE &&
1511 state != SERVICE_START &&
6cf6bbc2
LP		 1512 state != SERVICE_START_POST &&
1513 state != SERVICE_RUNNING &&
1514 state != SERVICE_RELOAD &&
1515 state != SERVICE_STOP &&
1516 state != SERVICE_STOP_SIGTERM &&
1517 state != SERVICE_STOP_SIGKILL &&
1518 state != SERVICE_STOP_POST &&
1519 state != SERVICE_FINAL_SIGTERM &&
1520 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1521 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1522 service_close_socket_fd(s);
6cf6bbc2
LP		 1523 service_connection_unref(s);
1524 }
4f2d528d 1525
f6023656
LP		 1526 /* For the inactive states unit_notify() will trim the cgroup,
1527 * but for exit we have to do that ourselves... */
a7556052 1528 if (state == SERVICE_EXITED && s->meta.manager->n_reloading <= 0)
f6023656
LP		 1529 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1530
e537352b 1531 if (old_state != state)
4cd1fbcc 1532 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1533
e2f3b44c
LP		 1534 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1535 s->reload_failure = false;
034c6ed7
LP		 1536}
1537
a16e1123
LP		 1538static int service_coldplug(Unit *u) {
1539 Service *s = SERVICE(u);
1540 int r;
1541
1542 assert(s);
1543 assert(s->state == SERVICE_DEAD);
1544
1545 if (s->deserialized_state != s->state) {
1546
1547 if (s->deserialized_state == SERVICE_START_PRE ||
1548 s->deserialized_state == SERVICE_START ||
1549 s->deserialized_state == SERVICE_START_POST ||
1550 s->deserialized_state == SERVICE_RELOAD ||
1551 s->deserialized_state == SERVICE_STOP ||
1552 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1553 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1554 s->deserialized_state == SERVICE_STOP_POST ||
1555 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1556 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1557 s->deserialized_state == SERVICE_AUTO_RESTART) {
1558
1559 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1560 usec_t k;
1561
1562 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1563
1564 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1565 return r;
1566 }
1567 }
a16e1123
LP		 1568
1569 if ((s->deserialized_state == SERVICE_START &&
1570 (s->type == SERVICE_FORKING ||
8c47c732 1571 s->type == SERVICE_DBUS ||
34e9ba66 1572 s->type == SERVICE_ONESHOT ||
8c47c732 1573 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1574 s->deserialized_state == SERVICE_START_POST ||
1575 s->deserialized_state == SERVICE_RUNNING ||
1576 s->deserialized_state == SERVICE_RELOAD ||
1577 s->deserialized_state == SERVICE_STOP ||
1578 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1579 s->deserialized_state == SERVICE_STOP_SIGKILL)
1580 if (s->main_pid > 0)
1581 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1582 return r;
1583
1584 if (s->deserialized_state == SERVICE_START_PRE ||
1585 s->deserialized_state == SERVICE_START ||
1586 s->deserialized_state == SERVICE_START_POST ||
1587 s->deserialized_state == SERVICE_RELOAD ||
1588 s->deserialized_state == SERVICE_STOP ||
1589 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1590 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1591 s->deserialized_state == SERVICE_STOP_POST ||
1592 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1593 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1594 if (s->control_pid > 0)
1595 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1596 return r;
1597
1598 service_set_state(s, s->deserialized_state);
1599 }
1600
1601 return 0;
1602}
1603
44d8db9e
LP		 1604static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1605 Iterator i;
1606 int r;
1607 int *rfds = NULL;
1608 unsigned rn_fds = 0;
f976f3f6 1609 Set *set, *free_set = NULL;
47be870b 1610 Socket *sock;
44d8db9e
LP		 1611
1612 assert(s);
1613 assert(fds);
1614 assert(n_fds);
1615
6cf6bbc2
LP		 1616 if (s->socket_fd >= 0)
1617 return 0;
1618
f976f3f6
LP		 1619 if (!set_isempty(s->configured_sockets))
1620 set = s->configured_sockets;
1621 else {
1622 if ((r = service_get_sockets(s, &free_set)) < 0)
1623 return r;
1624
1625 set = free_set;
1626 }
3e33402a 1627
47be870b 1628 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1629 int *cfds;
1630 unsigned cn_fds;
1631
47be870b 1632 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1633 goto fail;
1634
1635 if (!cfds)
1636 continue;
1637
1638 if (!rfds) {
1639 rfds = cfds;
1640 rn_fds = cn_fds;
1641 } else {
1642 int *t;
1643
1644 if (!(t = new(int, rn_fds+cn_fds))) {
1645 free(cfds);
1646 r = -ENOMEM;
1647 goto fail;
1648 }
1649
9c1b183c
LP		 1650 memcpy(t, rfds, rn_fds * sizeof(int));
1651 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
44d8db9e
LP		 1652 free(rfds);
1653 free(cfds);
1654
1655 rfds = t;
1656 rn_fds = rn_fds+cn_fds;
1657 }
1658 }
1659
1660 *fds = rfds;
1661 *n_fds = rn_fds;
3e33402a 1662
f976f3f6 1663 set_free(free_set);
3e33402a 1664
44d8db9e
LP		 1665 return 0;
1666
1667fail:
3e33402a 1668 set_free(set);
44d8db9e 1669 free(rfds);
3e33402a 1670
44d8db9e
LP		 1671 return r;
1672}
1673
81a2b7ce
LP		 1674static int service_spawn(
1675 Service *s,
1676 ExecCommand *c,
1677 bool timeout,
1678 bool pass_fds,
1679 bool apply_permissions,
1680 bool apply_chroot,
1e3ad081 1681 bool apply_tty_stdin,
c952c6ec 1682 bool set_notify_socket,
81a2b7ce
LP		 1683 pid_t *_pid) {
1684
034c6ed7
LP		 1685 pid_t pid;
1686 int r;
6cf6bbc2 1687 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1688 unsigned n_fds = 0, n_env = 0;
1689 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1690
1691 assert(s);
1692 assert(c);
1693 assert(_pid);
1694
6cf6bbc2
LP		 1695 if (pass_fds ||
1696 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1697 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1698 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1699
4f2d528d
LP		 1700 if (s->socket_fd >= 0) {
1701 fds = &s->socket_fd;
1702 n_fds = 1;
6cf6bbc2
LP		 1703 } else {
1704 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1705 goto fail;
1706
1707 fds = fdsbuf;
1708 }
4f2d528d 1709 }
44d8db9e 1710
e558336f 1711 if (timeout && s->timeout_usec) {
acbb0225 1712 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1713 goto fail;
1714 } else
acbb0225 1715 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1716
9e2f7c11
LP		 1717 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1718 r = -ENOMEM;
1719 goto fail;
1720 }
1721
9865f3b4 1722 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1723 r = -ENOMEM;
1724 goto fail;
1725 }
c952c6ec 1726
2105e76a 1727 if (set_notify_socket)
91b22f21 1728 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1729 r = -ENOMEM;
1730 goto fail;
1731 }
1732
2105e76a
LP		 1733 if (s->main_pid > 0)
1734 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1735 r = -ENOMEM;
1736 goto fail;
1737 }
2105e76a
LP		 1738
1739 if (!(final_env = strv_env_merge(2,
1740 s->meta.manager->environment,
1741 our_env,
1742 NULL))) {
1743 r = -ENOMEM;
1744 goto fail;
1745 }
c952c6ec 1746
9e2f7c11
LP		 1747 r = exec_spawn(c,
1748 argv,
1749 &s->exec_context,
1750 fds, n_fds,
2105e76a 1751 final_env,
9e2f7c11
LP		 1752 apply_permissions,
1753 apply_chroot,
1e3ad081 1754 apply_tty_stdin,
4cd1fbcc
LP		 1755 s->meta.manager->confirm_spawn,
1756 s->meta.cgroup_bondings,
ab1f0633 1757 s->meta.cgroup_attributes,
9e2f7c11
LP		 1758 &pid);
1759
9e2f7c11 1760 if (r < 0)
034c6ed7
LP		 1761 goto fail;
1762
4f2d528d 1763
87f0e418 1764 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1765 /* FIXME: we need to do something here */
1766 goto fail;
1767
2105e76a
LP		 1768 free(fdsbuf);
1769 strv_free(argv);
1770 strv_free(our_env);
1771 strv_free(final_env);
1772
034c6ed7
LP		 1773 *_pid = pid;
1774
5cb5a6ff 1775 return 0;
034c6ed7
LP		 1776
1777fail:
2105e76a 1778 free(fdsbuf);
c952c6ec 1779 strv_free(argv);
2105e76a
LP		 1780 strv_free(our_env);
1781 strv_free(final_env);
c952c6ec 1782
034c6ed7 1783 if (timeout)
acbb0225 1784 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1785
1786 return r;
1787}
1788
80876c20
LP		 1789static int main_pid_good(Service *s) {
1790 assert(s);
1791
1792 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1793 * don't know */
1794
1795 /* If we know the pid file, then lets just check if it is
1796 * still valid */
6dfa5494
LP		 1797 if (s->main_pid_known) {
1798
1799 /* If it's an alien child let's check if it is still
1800 * alive ... */
1801 if (s->main_pid_alien)
1802 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1803
1804 /* .. otherwise assume we'll get a SIGCHLD for it,
1805 * which we really should wait for to collect exit
1806 * status and code */
80876c20 1807 return s->main_pid > 0;
6dfa5494 1808 }
80876c20
LP		 1809
1810 /* We don't know the pid */
1811 return -EAGAIN;
1812}
1813
1814static int control_pid_good(Service *s) {
1815 assert(s);
1816
1817 return s->control_pid > 0;
1818}
1819
1820static int cgroup_good(Service *s) {
1821 int r;
1822
1823 assert(s);
1824
4cd1fbcc 1825 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1826 return r;
1827
1828 return !r;
1829}
1830
034c6ed7
LP		 1831static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1832 int r;
1833 assert(s);
1834
1835 if (!success)
1836 s->failure = true;
1837
1838 if (allow_restart &&
47342320 1839 !s->forbid_restart &&
034c6ed7 1840 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1841 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1842 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1843 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1844 (s->main_exec_status.code == CLD_KILLED ||
1845 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1846
acbb0225 1847 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1848 goto fail;
1849
1850 service_set_state(s, SERVICE_AUTO_RESTART);
1851 } else
fdf20a31 1852 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1853
47342320
LP		 1854 s->forbid_restart = false;
1855
034c6ed7
LP		 1856 return;
1857
1858fail:
4cd1fbcc 1859 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1860 service_enter_dead(s, false, false);
1861}
1862
1863static void service_enter_signal(Service *s, ServiceState state, bool success);
1864
1865static void service_enter_stop_post(Service *s, bool success) {
1866 int r;
1867 assert(s);
1868
1869 if (!success)
1870 s->failure = true;
1871
5e94833f
LP		 1872 service_unwatch_control_pid(s);
1873
80876c20 1874 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1875 s->control_command_id = SERVICE_EXEC_STOP_POST;
1876
81a2b7ce
LP		 1877 if ((r = service_spawn(s,
1878 s->control_command,
1879 true,
1880 false,
1881 !s->permissions_start_only,
1882 !s->root_directory_start_only,
1e3ad081 1883 true,
c952c6ec 1884 false,
81a2b7ce 1885 &s->control_pid)) < 0)
034c6ed7
LP		 1886 goto fail;
1887
d6ea93e3 1888
80876c20
LP		 1889 service_set_state(s, SERVICE_STOP_POST);
1890 } else
1891 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1892
1893 return;
1894
1895fail:
4cd1fbcc 1896 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1897 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1898}
1899
1900static void service_enter_signal(Service *s, ServiceState state, bool success) {
1901 int r;
ca949c9d
LP		 1902 Set *pid_set = NULL;
1903 bool wait_for_exit = false;
034c6ed7
LP		 1904
1905 assert(s);
1906
1907 if (!success)
1908 s->failure = true;
1909
2e22afe9
LP		 1910 if (s->exec_context.kill_mode != KILL_NONE) {
1911 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1912
ca949c9d 1913 if (s->main_pid > 0) {
cd25cce9 1914 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1915 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1916 else
6dfa5494 1917 wait_for_exit = !s->main_pid_alien;
034c6ed7
LP		 1918 }
1919
ca949c9d 1920 if (s->control_pid > 0) {
cd25cce9 1921 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
ca949c9d
LP		 1922 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1923 else
1924 wait_for_exit = true;
1925 }
50159e6a 1926
ca949c9d 1927 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1928
ca949c9d
LP		 1929 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1930 r = -ENOMEM;
50159e6a 1931 goto fail;
ca949c9d
LP		 1932 }
1933
1934 /* Exclude the main/control pids from being killed via the cgroup */
1935 if (s->main_pid > 0)
1936 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1937 goto fail;
1938
1939 if (s->control_pid > 0)
1940 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1941 goto fail;
1942
430c18ed 1943 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1944 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1945 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1946 } else if (r > 0)
ca949c9d
LP		 1947 wait_for_exit = true;
1948
1949 set_free(pid_set);
da19d5c1 1950 pid_set = NULL;
50159e6a 1951 }
d6ea93e3 1952 }
034c6ed7 1953
ca949c9d 1954 if (wait_for_exit) {
e558336f
LP		 1955 if (s->timeout_usec > 0)
1956 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1957 goto fail;
d6ea93e3 1958
80876c20
LP		 1959 service_set_state(s, state);
1960 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1961 service_enter_stop_post(s, true);
1962 else
034c6ed7
LP		 1963 service_enter_dead(s, true, true);
1964
1965 return;
1966
1967fail:
4cd1fbcc 1968 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1969
80876c20 1970 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1971 service_enter_stop_post(s, false);
1972 else
1973 service_enter_dead(s, false, true);
ca949c9d
LP		 1974
1975 if (pid_set)
1976 set_free(pid_set);
034c6ed7
LP		 1977}
1978
1979static void service_enter_stop(Service *s, bool success) {
1980 int r;
5925dd3c 1981
034c6ed7
LP		 1982 assert(s);
1983
1984 if (!success)
1985 s->failure = true;
1986
5e94833f
LP		 1987 service_unwatch_control_pid(s);
1988
80876c20 1989 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1990 s->control_command_id = SERVICE_EXEC_STOP;
1991
81a2b7ce
LP		 1992 if ((r = service_spawn(s,
1993 s->control_command,
1994 true,
1995 false,
1996 !s->permissions_start_only,
1997 !s->root_directory_start_only,
c952c6ec 1998 false,
1e3ad081 1999 false,
e55224ca 2000 &s->control_pid)) < 0)
034c6ed7
LP		 2001 goto fail;
2002
80876c20
LP		 2003 service_set_state(s, SERVICE_STOP);
2004 } else
034c6ed7
LP		 2005 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2006
2007 return;
2008
2009fail:
4cd1fbcc 2010 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2011 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2012}
2013
80876c20 2014static void service_enter_running(Service *s, bool success) {
4eab639f 2015 int main_pid_ok, cgroup_ok;
80876c20
LP		 2016 assert(s);
2017
2018 if (!success)
2019 s->failure = true;
2020
4eab639f
LP		 2021 main_pid_ok = main_pid_good(s);
2022 cgroup_ok = cgroup_good(s);
2023
2024 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 2025 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 2026 service_set_state(s, SERVICE_RUNNING);
02ee865a 2027 else if (s->remain_after_exit)
80876c20
LP		 2028 service_set_state(s, SERVICE_EXITED);
2029 else
2030 service_enter_stop(s, true);
2031}
2032
034c6ed7
LP		 2033static void service_enter_start_post(Service *s) {
2034 int r;
2035 assert(s);
2036
5e94833f
LP		 2037 service_unwatch_control_pid(s);
2038
80876c20 2039 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 2040 s->control_command_id = SERVICE_EXEC_START_POST;
2041
81a2b7ce
LP		 2042 if ((r = service_spawn(s,
2043 s->control_command,
2044 true,
2045 false,
2046 !s->permissions_start_only,
2047 !s->root_directory_start_only,
c952c6ec 2048 false,
1e3ad081 2049 false,
e55224ca 2050 &s->control_pid)) < 0)
034c6ed7
LP		 2051 goto fail;
2052
80876c20
LP		 2053 service_set_state(s, SERVICE_START_POST);
2054 } else
2055 service_enter_running(s, true);
034c6ed7
LP		 2056
2057 return;
2058
2059fail:
4cd1fbcc 2060 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2061 service_enter_stop(s, false);
2062}
2063
2064static void service_enter_start(Service *s) {
2065 pid_t pid;
2066 int r;
867b3b7d 2067 ExecCommand *c;
034c6ed7
LP		 2068
2069 assert(s);
2070
2071 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2072 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2073
80876c20
LP		 2074 if (s->type == SERVICE_FORKING)
2075 service_unwatch_control_pid(s);
2076 else
2077 service_unwatch_main_pid(s);
2078
867b3b7d
LP		 2079 if (s->type == SERVICE_FORKING) {
2080 s->control_command_id = SERVICE_EXEC_START;
2081 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2082
2083 s->main_command = NULL;
2084 } else {
2085 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2086 s->control_command = NULL;
2087
2088 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2089 }
34e9ba66 2090
81a2b7ce 2091 if ((r = service_spawn(s,
867b3b7d 2092 c,
8c47c732 2093 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2094 true,
2095 true,
2096 true,
1e3ad081 2097 true,
c952c6ec 2098 s->notify_access != NOTIFY_NONE,
81a2b7ce 2099 &pid)) < 0)
034c6ed7
LP		 2100 goto fail;
2101
2102 if (s->type == SERVICE_SIMPLE) {
2103 /* For simple services we immediately start
2104 * the START_POST binaries. */
2105
5925dd3c 2106 service_set_main_pid(s, pid);
034c6ed7
LP		 2107 service_enter_start_post(s);
2108
2109 } else if (s->type == SERVICE_FORKING) {
2110
2111 /* For forking services we wait until the start
2112 * process exited. */
2113
e55224ca 2114 s->control_pid = pid;
80876c20
LP		 2115 service_set_state(s, SERVICE_START);
2116
34e9ba66 2117 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2118 s->type == SERVICE_DBUS ||
2119 s->type == SERVICE_NOTIFY) {
7d55e835 2120
34e9ba66 2121 /* For oneshot services we wait until the start
7d55e835
LP		 2122 * process exited, too, but it is our main process. */
2123
05e343b7 2124 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2125 * but wait for the bus name to appear on the
2126 * bus. Notify services are similar. */
05e343b7 2127
5925dd3c 2128 service_set_main_pid(s, pid);
80876c20 2129 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2130 } else
2131 assert_not_reached("Unknown service type");
2132
2133 return;
2134
2135fail:
4cd1fbcc 2136 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2137 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2138}
2139
2140static void service_enter_start_pre(Service *s) {
2141 int r;
2142
2143 assert(s);
2144
5e94833f
LP		 2145 service_unwatch_control_pid(s);
2146
80876c20 2147 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2148 s->control_command_id = SERVICE_EXEC_START_PRE;
2149
81a2b7ce
LP		 2150 if ((r = service_spawn(s,
2151 s->control_command,
2152 true,
2153 false,
2154 !s->permissions_start_only,
2155 !s->root_directory_start_only,
1e3ad081 2156 true,
c952c6ec 2157 false,
e55224ca 2158 &s->control_pid)) < 0)
034c6ed7
LP		 2159 goto fail;
2160
80876c20
LP		 2161 service_set_state(s, SERVICE_START_PRE);
2162 } else
034c6ed7
LP		 2163 service_enter_start(s);
2164
2165 return;
2166
2167fail:
4cd1fbcc 2168 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2169 service_enter_dead(s, false, true);
2170}
2171
2172static void service_enter_restart(Service *s) {
2173 int r;
398ef8ba
LP		 2174 DBusError error;
2175
034c6ed7 2176 assert(s);
398ef8ba 2177 dbus_error_init(&error);
034c6ed7 2178
2edfa366
LP		 2179 if (s->meta.job) {
2180 log_info("Job pending for unit, delaying automatic restart.");
2181
2182 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2183 goto fail;
2184 }
2185
9ea9a0c8
LP		 2186 service_enter_dead(s, true, false);
2187
7b2603e6 2188 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2189 goto fail;
2190
4cd1fbcc 2191 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2192 return;
2193
2194fail:
398ef8ba 2195 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2196 service_enter_dead(s, false, false);
398ef8ba
LP		 2197
2198 dbus_error_free(&error);
034c6ed7
LP		 2199}
2200
2201static void service_enter_reload(Service *s) {
2202 int r;
2203
2204 assert(s);
2205
5e94833f
LP		 2206 service_unwatch_control_pid(s);
2207
80876c20 2208 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2209 s->control_command_id = SERVICE_EXEC_RELOAD;
2210
81a2b7ce
LP		 2211 if ((r = service_spawn(s,
2212 s->control_command,
2213 true,
2214 false,
2215 !s->permissions_start_only,
2216 !s->root_directory_start_only,
c952c6ec 2217 false,
1e3ad081 2218 false,
e55224ca 2219 &s->control_pid)) < 0)
034c6ed7
LP		 2220 goto fail;
2221
80876c20
LP		 2222 service_set_state(s, SERVICE_RELOAD);
2223 } else
2224 service_enter_running(s, true);
034c6ed7
LP		 2225
2226 return;
2227
2228fail:
4cd1fbcc 2229 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2230 s->reload_failure = true;
2231 service_enter_running(s, true);
034c6ed7
LP		 2232}
2233
34e9ba66 2234static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2235 int r;
2236
2237 assert(s);
2238 assert(s->control_command);
2239 assert(s->control_command->command_next);
2240
2241 if (!success)
2242 s->failure = true;
2243
34e9ba66 2244 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2245
34e9ba66 2246 s->control_command = s->control_command->command_next;
5e94833f
LP		 2247 service_unwatch_control_pid(s);
2248
81a2b7ce
LP		 2249 if ((r = service_spawn(s,
2250 s->control_command,
2251 true,
2252 false,
2253 !s->permissions_start_only,
2254 !s->root_directory_start_only,
5830833f
LP		 2255 s->control_command_id == SERVICE_EXEC_START_PRE ||
2256 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2257 false,
e55224ca 2258 &s->control_pid)) < 0)
034c6ed7
LP		 2259 goto fail;
2260
2261 return;
2262
2263fail:
34e9ba66 2264 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2265
80876c20
LP		 2266 if (s->state == SERVICE_START_PRE)
2267 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2268 else if (s->state == SERVICE_STOP)
2269 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2270 else if (s->state == SERVICE_STOP_POST)
2271 service_enter_dead(s, false, true);
e2f3b44c
LP		 2272 else if (s->state == SERVICE_RELOAD) {
2273 s->reload_failure = true;
2274 service_enter_running(s, true);
2275 } else
034c6ed7 2276 service_enter_stop(s, false);
5cb5a6ff
LP		 2277}
2278
34e9ba66
LP		 2279static void service_run_next_main(Service *s, bool success) {
2280 pid_t pid;
2281 int r;
2282
2283 assert(s);
867b3b7d
LP		 2284 assert(s->main_command);
2285 assert(s->main_command->command_next);
2286 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2287
2288 if (!success)
2289 s->failure = true;
2290
867b3b7d 2291 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2292 service_unwatch_main_pid(s);
2293
2294 if ((r = service_spawn(s,
867b3b7d 2295 s->main_command,
34e9ba66
LP		 2296 false,
2297 true,
2298 true,
2299 true,
2300 true,
2301 s->notify_access != NOTIFY_NONE,
2302 &pid)) < 0)
2303 goto fail;
2304
2305 service_set_main_pid(s, pid);
2306
2307 return;
2308
2309fail:
2310 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2311 service_enter_stop(s, false);
2312}
2313
87f0e418
LP		 2314static int service_start(Unit *u) {
2315 Service *s = SERVICE(u);
5cb5a6ff
LP		 2316
2317 assert(s);
2318
034c6ed7
LP		 2319 /* We cannot fulfill this request right now, try again later
2320 * please! */
2321 if (s->state == SERVICE_STOP ||
2322 s->state == SERVICE_STOP_SIGTERM ||
2323 s->state == SERVICE_STOP_SIGKILL ||
2324 s->state == SERVICE_STOP_POST ||
2325 s->state == SERVICE_FINAL_SIGTERM ||
2326 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2327 return -EAGAIN;
2328
034c6ed7
LP		 2329 /* Already on it! */
2330 if (s->state == SERVICE_START_PRE ||
2331 s->state == SERVICE_START ||
2332 s->state == SERVICE_START_POST)
2333 return 0;
2334
fdf20a31 2335 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2336
1e2e8133
LP		 2337 /* Make sure we don't enter a busy loop of some kind. */
2338 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2339 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2340 return -ECANCELED;
1e2e8133
LP		 2341 }
2342
034c6ed7
LP		 2343 s->failure = false;
2344 s->main_pid_known = false;
6dfa5494 2345 s->main_pid_alien = false;
47342320 2346 s->forbid_restart = false;
034c6ed7
LP		 2347
2348 service_enter_start_pre(s);
2349 return 0;
5cb5a6ff
LP		 2350}
2351
87f0e418
LP		 2352static int service_stop(Unit *u) {
2353 Service *s = SERVICE(u);
5cb5a6ff
LP		 2354
2355 assert(s);
2356
3f6c78dc
LP		 2357 /* This is a user request, so don't do restarts on this
2358 * shutdown. */
47342320 2359 s->forbid_restart = true;
034c6ed7 2360
e537352b
LP		 2361 /* Already on it */
2362 if (s->state == SERVICE_STOP ||
2363 s->state == SERVICE_STOP_SIGTERM ||
2364 s->state == SERVICE_STOP_SIGKILL ||
2365 s->state == SERVICE_STOP_POST ||
2366 s->state == SERVICE_FINAL_SIGTERM ||
2367 s->state == SERVICE_FINAL_SIGKILL)
2368 return 0;
2369
3f6c78dc 2370 /* Don't allow a restart */
034c6ed7
LP		 2371 if (s->state == SERVICE_AUTO_RESTART) {
2372 service_set_state(s, SERVICE_DEAD);
2373 return 0;
2374 }
2375
3f6c78dc
LP		 2376 /* If there's already something running we go directly into
2377 * kill mode. */
2378 if (s->state == SERVICE_START_PRE ||
2379 s->state == SERVICE_START ||
2380 s->state == SERVICE_START_POST ||
2381 s->state == SERVICE_RELOAD) {
2382 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2383 return 0;
2384 }
5cb5a6ff 2385
3f6c78dc
LP		 2386 assert(s->state == SERVICE_RUNNING ||
2387 s->state == SERVICE_EXITED);
3a762661 2388
034c6ed7 2389 service_enter_stop(s, true);
5cb5a6ff
LP		 2390 return 0;
2391}
2392
87f0e418
LP		 2393static int service_reload(Unit *u) {
2394 Service *s = SERVICE(u);
034c6ed7
LP		 2395
2396 assert(s);
2397
80876c20 2398 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2399
2400 service_enter_reload(s);
5cb5a6ff
LP		 2401 return 0;
2402}
2403
87f0e418
LP		 2404static bool service_can_reload(Unit *u) {
2405 Service *s = SERVICE(u);
034c6ed7
LP		 2406
2407 assert(s);
2408
2409 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2410}
2411
a16e1123
LP		 2412static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2413 Service *s = SERVICE(u);
2414
2415 assert(u);
2416 assert(f);
2417 assert(fds);
2418
2419 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2420 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2421
2422 if (s->control_pid > 0)
5925dd3c 2423 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2424
5925dd3c
LP		 2425 if (s->main_pid_known && s->main_pid > 0)
2426 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2427
2428 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2429
3a2776bc
LP		 2430 if (s->status_text)
2431 unit_serialize_item(u, f, "status-text", s->status_text);
2432
a16e1123
LP		 2433 /* There's a minor uncleanliness here: if there are multiple
2434 * commands attached here, we will start from the first one
2435 * again */
2436 if (s->control_command_id >= 0)
825636e5 2437 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2438
2439 if (s->socket_fd >= 0) {
2440 int copy;
2441
2442 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2443 return copy;
2444
2445 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2446 }
2447
ecdbca40
LP		 2448 if (s->main_exec_status.pid > 0) {
2449 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2450 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2451 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2452
799fd0fd 2453 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2454 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2455 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2456 }
2457 }
2458
a16e1123
LP		 2459 return 0;
2460}
2461
2462static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2463 Service *s = SERVICE(u);
a16e1123
LP		 2464
2465 assert(u);
2466 assert(key);
2467 assert(value);
2468 assert(fds);
2469
2470 if (streq(key, "state")) {
2471 ServiceState state;
2472
2473 if ((state = service_state_from_string(value)) < 0)
2474 log_debug("Failed to parse state value %s", value);
2475 else
2476 s->deserialized_state = state;
2477 } else if (streq(key, "failure")) {
2478 int b;
2479
2480 if ((b = parse_boolean(value)) < 0)
2481 log_debug("Failed to parse failure value %s", value);
2482 else
2483 s->failure = b || s->failure;
2484 } else if (streq(key, "control-pid")) {
5925dd3c 2485 pid_t pid;
a16e1123 2486
e364ad06 2487 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2488 log_debug("Failed to parse control-pid value %s", value);
2489 else
e55224ca 2490 s->control_pid = pid;
a16e1123 2491 } else if (streq(key, "main-pid")) {
5925dd3c 2492 pid_t pid;
a16e1123 2493
e364ad06 2494 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2495 log_debug("Failed to parse main-pid value %s", value);
2496 else
5925dd3c 2497 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2498 } else if (streq(key, "main-pid-known")) {
2499 int b;
2500
2501 if ((b = parse_boolean(value)) < 0)
2502 log_debug("Failed to parse main-pid-known value %s", value);
2503 else
2504 s->main_pid_known = b;
3a2776bc
LP		 2505 } else if (streq(key, "status-text")) {
2506 char *t;
2507
2508 if ((t = strdup(value))) {
2509 free(s->status_text);
2510 s->status_text = t;
2511 }
2512
a16e1123
LP		 2513 } else if (streq(key, "control-command")) {
2514 ServiceExecCommand id;
2515
2516 if ((id = service_exec_command_from_string(value)) < 0)
2517 log_debug("Failed to parse exec-command value %s", value);
2518 else {
2519 s->control_command_id = id;
2520 s->control_command = s->exec_command[id];
2521 }
2522 } else if (streq(key, "socket-fd")) {
2523 int fd;
2524
2525 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2526 log_debug("Failed to parse socket-fd value %s", value);
2527 else {
2528
2529 if (s->socket_fd >= 0)
2530 close_nointr_nofail(s->socket_fd);
2531 s->socket_fd = fdset_remove(fds, fd);
2532 }
ecdbca40
LP		 2533 } else if (streq(key, "main-exec-status-pid")) {
2534 pid_t pid;
2535
e364ad06 2536 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2537 log_debug("Failed to parse main-exec-status-pid value %s", value);
2538 else
2539 s->main_exec_status.pid = pid;
2540 } else if (streq(key, "main-exec-status-code")) {
2541 int i;
2542
e364ad06 2543 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2544 log_debug("Failed to parse main-exec-status-code value %s", value);
2545 else
2546 s->main_exec_status.code = i;
2547 } else if (streq(key, "main-exec-status-status")) {
2548 int i;
2549
e364ad06 2550 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2551 log_debug("Failed to parse main-exec-status-status value %s", value);
2552 else
2553 s->main_exec_status.status = i;
799fd0fd
LP		 2554 } else if (streq(key, "main-exec-status-start"))
2555 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2556 else if (streq(key, "main-exec-status-exit"))
2557 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2558 else
a16e1123
LP		 2559 log_debug("Unknown serialization key '%s'", key);
2560
2561 return 0;
2562}
2563
87f0e418
LP		 2564static UnitActiveState service_active_state(Unit *u) {
2565 assert(u);
5cb5a6ff 2566
acbb0225 2567 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2568}
2569
10a94420
LP		 2570static const char *service_sub_state_to_string(Unit *u) {
2571 assert(u);
2572
2573 return service_state_to_string(SERVICE(u)->state);
2574}
2575
701cc384
LP		 2576static bool service_check_gc(Unit *u) {
2577 Service *s = SERVICE(u);
2578
2579 assert(s);
2580
6d55002a
LP		 2581 /* Never clean up services that still have a process around,
2582 * even if the service is formally dead. */
2583 if (cgroup_good(s) > 0 ||
2584 main_pid_good(s) > 0 ||
2585 control_pid_good(s) > 0)
2586 return true;
2587
2588#ifdef HAVE_SYSV_COMPAT
2589 if (s->sysv_path)
2590 return true;
07459bb6 2591#endif
701cc384 2592
6d55002a
LP		 2593 return false;
2594}
2595
701cc384
LP		 2596static bool service_check_snapshot(Unit *u) {
2597 Service *s = SERVICE(u);
2598
2599 assert(s);
2600
2601 return !s->got_socket_fd;
2602}
2603
87f0e418
LP		 2604static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2605 Service *s = SERVICE(u);
034c6ed7 2606 bool success;
5cb5a6ff
LP		 2607
2608 assert(s);
034c6ed7
LP		 2609 assert(pid >= 0);
2610
f21781d5 2611 if (!s->meta.fragment_path)
d06dacd0
LP		 2612 success = is_clean_exit_lsb(code, status);
2613 else
2614 success = is_clean_exit(code, status);
034c6ed7
LP		 2615
2616 if (s->main_pid == pid) {
db01f8b3
MS		 2617 /* Forking services may occasionally move to a new PID.
2618 * As long as they update the PID file before exiting the old
2619 * PID, they're fine. */
5375410b 2620 if (service_load_pid_file(s, false) == 0)
db01f8b3 2621 return;
034c6ed7 2622
034c6ed7 2623 s->main_pid = 0;
6ea832a2 2624 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
034c6ed7 2625
867b3b7d
LP		 2626 /* If this is not a forking service than the main
2627 * process got started and hence we copy the exit
2628 * status so that it is recorded both as main and as
2629 * control process exit status */
2630 if (s->main_command) {
2631 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2632
867b3b7d 2633 if (s->main_command->ignore)
b708e7ce 2634 success = true;
034c6ed7
LP		 2635 }
2636
92abbefb
LP		 2637 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2638 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2639 s->failure = s->failure || !success;
034c6ed7 2640
867b3b7d
LP		 2641 if (s->main_command &&
2642 s->main_command->command_next &&
34e9ba66 2643 success) {
034c6ed7 2644
34e9ba66
LP		 2645 /* There is another command to *
2646 * execute, so let's do that. */
034c6ed7 2647
34e9ba66
LP		 2648 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2649 service_run_next_main(s, success);
034c6ed7 2650
34e9ba66
LP		 2651 } else {
2652
2653 /* The service exited, so the service is officially
2654 * gone. */
867b3b7d 2655 s->main_command = NULL;
34e9ba66
LP		 2656
2657 switch (s->state) {
2658
2659 case SERVICE_START_POST:
2660 case SERVICE_RELOAD:
2661 case SERVICE_STOP:
2662 /* Need to wait until the operation is
2663 * done */
c4653a4d 2664 break;
7d55e835 2665
34e9ba66
LP		 2666 case SERVICE_START:
2667 if (s->type == SERVICE_ONESHOT) {
2668 /* This was our main goal, so let's go on */
2669 if (success)
2670 service_enter_start_post(s);
2671 else
2672 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2673 break;
2674 } else {
2675 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2676
34e9ba66
LP		 2677 /* Fall through */
2678 }
034c6ed7 2679
34e9ba66
LP		 2680 case SERVICE_RUNNING:
2681 service_enter_running(s, success);
2682 break;
034c6ed7 2683
34e9ba66
LP		 2684 case SERVICE_STOP_SIGTERM:
2685 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2686
34e9ba66
LP		 2687 if (!control_pid_good(s))
2688 service_enter_stop_post(s, success);
5cb5a6ff 2689
34e9ba66
LP		 2690 /* If there is still a control process, wait for that first */
2691 break;
2692
2693 default:
2694 assert_not_reached("Uh, main process died at wrong time.");
2695 }
034c6ed7 2696 }
5cb5a6ff 2697
034c6ed7 2698 } else if (s->control_pid == pid) {
034c6ed7 2699
34e9ba66
LP		 2700 s->control_pid = 0;
2701
b708e7ce 2702 if (s->control_command) {
6ea832a2 2703 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
a16e1123 2704
b708e7ce
LP		 2705 if (s->control_command->ignore)
2706 success = true;
2707 }
2708
34e9ba66 2709 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2710 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2711 s->failure = s->failure || !success;
034c6ed7 2712
34e9ba66
LP		 2713 if (s->control_command &&
2714 s->control_command->command_next &&
2715 success) {
034c6ed7
LP		 2716
2717 /* There is another command to *
2718 * execute, so let's do that. */
2719
34e9ba66
LP		 2720 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2721 service_run_next_control(s, success);
034c6ed7 2722
80876c20 2723 } else {
034c6ed7
LP		 2724 /* No further commands for this step, so let's
2725 * figure out what to do next */
2726
a16e1123
LP		 2727 s->control_command = NULL;
2728 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2729
9e2f7c11 2730 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2731
034c6ed7
LP		 2732 switch (s->state) {
2733
2734 case SERVICE_START_PRE:
2735 if (success)
2736 service_enter_start(s);
2737 else
80876c20 2738 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2739 break;
2740
2741 case SERVICE_START:
2742 assert(s->type == SERVICE_FORKING);
2743
2744 /* Let's try to load the pid
2745 * file here if we can. We
2746 * ignore the return value,
2747 * since the PID file might
2748 * actually be created by a
2749 * START_POST script */
2750
2751 if (success) {
5375410b 2752 service_load_pid_file(s, !s->exec_command[SERVICE_EXEC_START_POST]);
4fbf50b3 2753 service_search_main_pid(s);
034c6ed7
LP		 2754
2755 service_enter_start_post(s);
2756 } else
80876c20 2757 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2758
2759 break;
2760
2761 case SERVICE_START_POST:
6dfa5494 2762 if (success) {
5375410b 2763 service_load_pid_file(s, true);
6dfa5494 2764 service_search_main_pid(s);
034c6ed7
LP		 2765 }
2766
3185a36b
LP		 2767 s->reload_failure = !success;
2768 service_enter_running(s, true);
2769 break;
034c6ed7
LP		 2770
2771 case SERVICE_RELOAD:
3185a36b 2772 if (success) {
5375410b 2773 service_load_pid_file(s, true);
3185a36b
LP		 2774 service_search_main_pid(s);
2775 }
2776
e2f3b44c
LP		 2777 s->reload_failure = !success;
2778 service_enter_running(s, true);
034c6ed7
LP		 2779 break;
2780
2781 case SERVICE_STOP:
80876c20 2782 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2783 break;
2784
2785 case SERVICE_STOP_SIGTERM:
2786 case SERVICE_STOP_SIGKILL:
2787 if (main_pid_good(s) <= 0)
2788 service_enter_stop_post(s, success);
2789
2790 /* If there is still a service
2791 * process around, wait until
2792 * that one quit, too */
2793 break;
2794
2795 case SERVICE_STOP_POST:
2796 case SERVICE_FINAL_SIGTERM:
2797 case SERVICE_FINAL_SIGKILL:
2798 service_enter_dead(s, success, true);
2799 break;
2800
2801 default:
2802 assert_not_reached("Uh, control process died at wrong time.");
2803 }
2804 }
8c47c732 2805 }
c4e2ceae
LP		 2806
2807 /* Notify clients about changed exit status */
2808 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2809}
2810
acbb0225 2811static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2812 Service *s = SERVICE(u);
034c6ed7
LP		 2813
2814 assert(s);
2815 assert(elapsed == 1);
2816
acbb0225 2817 assert(w == &s->timer_watch);
034c6ed7
LP		 2818
2819 switch (s->state) {
2820
2821 case SERVICE_START_PRE:
2822 case SERVICE_START:
9e2f7c11 2823 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2824 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2825 break;
2826
034c6ed7 2827 case SERVICE_START_POST:
9e2f7c11 2828 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2829 service_enter_stop(s, false);
2830 break;
2831
e2f3b44c
LP		 2832 case SERVICE_RELOAD:
2833 log_warning("%s operation timed out. Stopping.", u->meta.id);
2834 s->reload_failure = true;
2835 service_enter_running(s, true);
2836 break;
2837
034c6ed7 2838 case SERVICE_STOP:
9e2f7c11 2839 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2840 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2841 break;
2842
2843 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2844 if (s->exec_context.send_sigkill) {
2845 log_warning("%s stopping timed out. Killing.", u->meta.id);
2846 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2847 } else {
2848 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2849 service_enter_stop_post(s, false);
2850 }
2851
034c6ed7
LP		 2852 break;
2853
2854 case SERVICE_STOP_SIGKILL:
35b8ca3a 2855 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 2856 * Must be something we cannot kill, so let's just be
2857 * weirded out and continue */
2858
9e2f7c11 2859 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2860 service_enter_stop_post(s, false);
2861 break;
2862
2863 case SERVICE_STOP_POST:
9e2f7c11 2864 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2865 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2866 break;
2867
2868 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2869 if (s->exec_context.send_sigkill) {
2870 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2871 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2872 } else {
2873 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2874 service_enter_dead(s, false, true);
2875 }
2876
034c6ed7
LP		 2877 break;
2878
2879 case SERVICE_FINAL_SIGKILL:
fdf20a31 2880 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2881 service_enter_dead(s, false, true);
2882 break;
2883
2884 case SERVICE_AUTO_RESTART:
54165a39 2885 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2886 service_enter_restart(s);
2887 break;
2888
2889 default:
2890 assert_not_reached("Timeout at wrong time.");
2891 }
5cb5a6ff
LP		 2892}
2893
8e274523
LP		 2894static void service_cgroup_notify_event(Unit *u) {
2895 Service *s = SERVICE(u);
2896
2897 assert(u);
2898
9e2f7c11 2899 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2900
2901 switch (s->state) {
2902
2903 /* Waiting for SIGCHLD is usually more interesting,
2904 * because it includes return codes/signals. Which is
2905 * why we ignore the cgroup events for most cases,
2906 * except when we don't know pid which to expect the
2907 * SIGCHLD for. */
2908
2909 case SERVICE_RUNNING:
80876c20 2910 service_enter_running(s, true);
8e274523
LP		 2911 break;
2912
28708d8a
LP		 2913 case SERVICE_STOP_SIGTERM:
2914 case SERVICE_STOP_SIGKILL:
6dfa5494 2915
28708d8a
LP		 2916 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2917 service_enter_stop_post(s, true);
2918
2919 break;
2920
7f97f0fe
LP		 2921 case SERVICE_FINAL_SIGTERM:
2922 case SERVICE_FINAL_SIGKILL:
2923 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2924 service_enter_dead(s, true, true);
2925
2926 break;
2927
8e274523
LP		 2928 default:
2929 ;
2930 }
2931}
2932
c952c6ec 2933static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2934 Service *s = SERVICE(u);
2935 const char *e;
2936
2937 assert(u);
2938
c952c6ec
LP		 2939 if (s->notify_access == NOTIFY_NONE) {
2940 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2941 u->meta.id, (unsigned long) pid);
2942 return;
2943 }
2944
2945 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2946 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2947 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2948 return;
2949 }
2950
8c47c732
LP		 2951 log_debug("%s: Got message", u->meta.id);
2952
2953 /* Interpret MAINPID= */
2954 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2955 (s->state == SERVICE_START ||
2956 s->state == SERVICE_START_POST ||
2957 s->state == SERVICE_RUNNING ||
2958 s->state == SERVICE_RELOAD)) {
8c47c732 2959
5925dd3c 2960 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2961 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2962 else {
2963 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2964 service_set_main_pid(s, pid);
8c47c732
LP		 2965 }
2966 }
2967
2968 /* Interpret READY= */
2969 if (s->type == SERVICE_NOTIFY &&
2970 s->state == SERVICE_START &&
2971 strv_find(tags, "READY=1")) {
2972 log_debug("%s: got READY=1", u->meta.id);
2973
2974 service_enter_start_post(s);
2975 }
2976
2977 /* Interpret STATUS= */
2978 if ((e = strv_find_prefix(tags, "STATUS="))) {
2979 char *t;
2980
3a2776bc
LP		 2981 if (e[7]) {
2982 if (!(t = strdup(e+7))) {
2983 log_error("Failed to allocate string.");
2984 return;
2985 }
2986
2987 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2988
3a2776bc
LP		 2989 free(s->status_text);
2990 s->status_text = t;
2991 } else {
2992 free(s->status_text);
2993 s->status_text = NULL;
2994 }
8c47c732 2995
8c47c732 2996 }
c4e2ceae
LP		 2997
2998 /* Notify clients about changed status or main pid */
2999 unit_add_to_dbus_queue(u);
8c47c732
LP		 3000}
3001
07459bb6 3002#ifdef HAVE_SYSV_COMPAT
de3910a3
FC		 3003
3004#ifdef TARGET_SUSE
3005static void sysv_facility_in_insserv_conf(Manager *mgr) {
3006 FILE *f=NULL;
3007 int r;
3008
3009 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3010 r = errno == ENOENT ? 0 : -errno;
3011 goto finish;
3012 }
3013
3014 while (!feof(f)) {
3015 char l[LINE_MAX], *t;
3016 char **parsed = NULL;
3017
3018 if (!fgets(l, sizeof(l), f)) {
3019 if (feof(f))
3020 break;
3021
3022 r = -errno;
3023 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3024 goto finish;
3025 }
3026
3027 t = strstrip(l);
3028 if (*t != '$' && *t != '<')
3029 continue;
3030
3031 parsed = strv_split(t,WHITESPACE);
3032 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3033 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3034 char *facility;
3035 Unit *u;
3036 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3037 continue;
3038 if ((u = manager_get_unit(mgr, facility)) && (u->meta.type == UNIT_TARGET)) {
3039 UnitDependency e;
3040 char *dep = NULL, *name, **j;
3041
3042 STRV_FOREACH (j, parsed+1) {
3043 if (*j[0]=='+') {
3044 e = UNIT_WANTS;
3045 name = *j+1;
3046 }
3047 else {
3048 e = UNIT_REQUIRES;
3049 name = *j;
3050 }
3051 if (sysv_translate_facility(name, NULL, &dep) < 0)
3052 continue;
3053
3054 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3055 free(dep);
3056 }
3057 }
3058 free(facility);
3059 }
3060 strv_free(parsed);
3061 }
3062finish:
3063 if (f)
3064 fclose(f);
3065
3066}
3067#endif
3068
2c4104f0 3069static int service_enumerate(Manager *m) {
2c4104f0
LP		 3070 char **p;
3071 unsigned i;
3072 DIR *d = NULL;
3073 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 3074 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3075 Unit *service;
3076 Iterator j;
2c4104f0
LP		 3077 int r;
3078
3079 assert(m);
3080
b1bc08e5
LP		 3081 if (m->running_as != MANAGER_SYSTEM)
3082 return 0;
3083
c68364b7
LP		 3084 zero(runlevel_services);
3085
84e3543e 3086 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 3087 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 3088 struct dirent *de;
3089
3090 free(path);
70132bd0
LP		 3091 path = join(*p, "/", rcnd_table[i].path, NULL);
3092 if (!path) {
2c4104f0
LP		 3093 r = -ENOMEM;
3094 goto finish;
3095 }
3096
3097 if (d)
3098 closedir(d);
3099
3100 if (!(d = opendir(path))) {
3101 if (errno != ENOENT)
3102 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3103
3104 continue;
3105 }
3106
3107 while ((de = readdir(d))) {
db06e3b6 3108 int a, b;
2c4104f0
LP		 3109
3110 if (ignore_file(de->d_name))
3111 continue;
3112
3113 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3114 continue;
3115
3116 if (strlen(de->d_name) < 4)
3117 continue;
3118
db06e3b6
LP		 3119 a = undecchar(de->d_name[1]);
3120 b = undecchar(de->d_name[2]);
3121
3122 if (a < 0 || b < 0)
3123 continue;
3124
2c4104f0 3125 free(fpath);
44d91056 3126 fpath = join(path, "/", de->d_name, NULL);
8ea913b2 3127 if (!fpath) {
2c4104f0
LP		 3128 r = -ENOMEM;
3129 goto finish;
3130 }
3131
3132 if (access(fpath, X_OK) < 0) {
3133
3134 if (errno != ENOENT)
3135 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3136
3137 continue;
3138 }
3139
3140 free(name);
b7ccee3c 3141 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3142 r = -ENOMEM;
3143 goto finish;
3144 }
3145
398ef8ba 3146 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3147 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3148 continue;
3149 }
2c4104f0 3150
c68364b7
LP		 3151 if (de->d_name[0] == 'S') {
3152
f73d93a4 3153 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
ea87ca5a
LP		 3154 SERVICE(service)->sysv_start_priority_from_rcnd =
3155 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
db06e3b6 3156
c68364b7 3157 SERVICE(service)->sysv_enabled = true;
f73d93a4 3158 }
db06e3b6 3159
c68364b7
LP		 3160 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3161 goto finish;
2c4104f0 3162
c68364b7 3163 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3164 goto finish;
23a177ef 3165
fc5df99e
LP		 3166 } else if (de->d_name[0] == 'K' &&
3167 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3168 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3169
c68364b7
LP		 3170 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3171 goto finish;
3172
3173 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3174 goto finish;
3175 }
3176 }
3177 }
3178
c68364b7
LP		 3179 /* Now we loaded all stubs and are aware of the lowest
3180 start-up priority for all services, not let's actually load
3181 the services, this will also tell us which services are
3182 actually native now */
3183 manager_dispatch_load_queue(m);
3184
3185 /* If this is a native service, rely on native ways to pull in
3186 * a service, don't pull it in via sysv rcN.d links. */
3187 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3188 SET_FOREACH(service, runlevel_services[i], j) {
3189 service = unit_follow_merge(service);
3190
3191 if (service->meta.fragment_path)
3192 continue;
3193
3194 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3195 goto finish;
3196 }
3197
3198 /* We honour K links only for halt/reboot. For the normal
3199 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3200 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3201 * between the runlevels 0 and 6 and just add them to the
3202 * special shutdown target. On SUSE the boot.d/ runlevel is
3203 * also used for shutdown, so we add links for that too to the
3204 * shutdown target.*/
3205 SET_FOREACH(service, shutdown_services, j) {
3206 service = unit_follow_merge(service);
3207
3208 if (service->meta.fragment_path)
3209 continue;
3210
ead8e478 3211 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3212 goto finish;
3213 }
3214
2c4104f0
LP		 3215 r = 0;
3216
de3910a3
FC		 3217#ifdef TARGET_SUSE
3218 sysv_facility_in_insserv_conf (m);
3219#endif
3220
2c4104f0
LP		 3221finish:
3222 free(path);
3223 free(fpath);
3224 free(name);
fbe9f3a9 3225
c68364b7
LP		 3226 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3227 set_free(runlevel_services[i]);
3228 set_free(shutdown_services);
3229
fbe9f3a9
LP		 3230 if (d)
3231 closedir(d);
2c4104f0
LP		 3232
3233 return r;
3234}
07459bb6 3235#endif
2c4104f0 3236
05e343b7
LP		 3237static void service_bus_name_owner_change(
3238 Unit *u,
3239 const char *name,
3240 const char *old_owner,
3241 const char *new_owner) {
3242
3243 Service *s = SERVICE(u);
3244
3245 assert(s);
3246 assert(name);
3247
3248 assert(streq(s->bus_name, name));
3249 assert(old_owner || new_owner);
3250
3251 if (old_owner && new_owner)
3252 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3253 else if (old_owner)
3254 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3255 else
3256 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3257
3258 s->bus_name_good = !!new_owner;
3259
3260 if (s->type == SERVICE_DBUS) {
3261
3262 /* service_enter_running() will figure out what to
3263 * do */
3264 if (s->state == SERVICE_RUNNING)
3265 service_enter_running(s, true);
3266 else if (s->state == SERVICE_START && new_owner)
3267 service_enter_start_post(s);
3268
3269 } else if (new_owner &&
3270 s->main_pid <= 0 &&
3271 (s->state == SERVICE_START ||
3272 s->state == SERVICE_START_POST ||
3273 s->state == SERVICE_RUNNING ||
3274 s->state == SERVICE_RELOAD)) {
3275
3276 /* Try to acquire PID from bus service */
3277 log_debug("Trying to acquire PID from D-Bus name...");
3278
3279 bus_query_pid(u->meta.manager, name);
3280 }
3281}
3282
3283static void service_bus_query_pid_done(
3284 Unit *u,
3285 const char *name,
3286 pid_t pid) {
3287
3288 Service *s = SERVICE(u);
3289
3290 assert(s);
3291 assert(name);
3292
3293 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3294
3295 if (s->main_pid <= 0 &&
3296 (s->state == SERVICE_START ||
3297 s->state == SERVICE_START_POST ||
3298 s->state == SERVICE_RUNNING ||
3299 s->state == SERVICE_RELOAD))
5925dd3c 3300 service_set_main_pid(s, pid);
05e343b7
LP		 3301}
3302
6cf6bbc2 3303int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3304 assert(s);
3305 assert(fd >= 0);
3306
3307 /* This is called by the socket code when instantiating a new
3308 * service for a stream socket and the socket needs to be
3309 * configured. */
3310
4cd1fbcc 3311 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3312 return -EINVAL;
3313
3314 if (s->socket_fd >= 0)
3315 return -EBUSY;
3316
3317 if (s->state != SERVICE_DEAD)
3318 return -EAGAIN;
3319
3320 s->socket_fd = fd;
701cc384 3321 s->got_socket_fd = true;
f976f3f6 3322 s->accept_socket = sock;
6cf6bbc2 3323
4f2d528d
LP		 3324 return 0;
3325}
3326
fdf20a31 3327static void service_reset_failed(Unit *u) {
5632e374
LP		 3328 Service *s = SERVICE(u);
3329
3330 assert(s);
3331
fdf20a31 3332 if (s->state == SERVICE_FAILED)
5632e374
LP		 3333 service_set_state(s, SERVICE_DEAD);
3334
3335 s->failure = false;
3336}
3337
5f4b19f4
LP		 3338static bool service_need_daemon_reload(Unit *u) {
3339 Service *s = SERVICE(u);
3340
3341 assert(s);
3342
3343#ifdef HAVE_SYSV_COMPAT
3344 if (s->sysv_path) {
3345 struct stat st;
3346
3347 zero(st);
3348 if (stat(s->sysv_path, &st) < 0)
3349 /* What, cannot access this anymore? */
3350 return true;
3351
3352 if (s->sysv_mtime > 0 &&
3353 timespec_load(&st.st_mtim) != s->sysv_mtime)
3354 return true;
3355 }
3356#endif
3357
3358 return false;
3359}
3360
8a0867d6
LP		 3361static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3362 Service *s = SERVICE(u);
3363 int r = 0;
3364 Set *pid_set = NULL;
3365
3366 assert(s);
3367
3368 if (s->main_pid <= 0 && who == KILL_MAIN) {
3369 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
a17204af 3370 return -ESRCH;
8a0867d6
LP		 3371 }
3372
3373 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3374 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
a17204af 3375 return -ESRCH;
8a0867d6
LP		 3376 }
3377
3611581e
LP		 3378 if (who == KILL_CONTROL || who == KILL_ALL)
3379 if (s->control_pid > 0)
3380 if (kill(s->control_pid, signo) < 0)
3381 r = -errno;
8a0867d6 3382
3611581e
LP		 3383 if (who == KILL_MAIN || who == KILL_ALL)
3384 if (s->main_pid > 0)
3385 if (kill(s->main_pid, signo) < 0)
3386 r = -errno;
8a0867d6 3387
3611581e 3388 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
8a0867d6
LP		 3389 int q;
3390
3391 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3392 return -ENOMEM;
3393
3394 /* Exclude the control/main pid from being killed via the cgroup */
3395 if (s->control_pid > 0)
3396 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3397 r = q;
3398 goto finish;
3399 }
3400
3401 if (s->main_pid > 0)
3402 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3403 r = q;
3404 goto finish;
3405 }
3406
430c18ed 3407 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
3611581e 3408 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
8a0867d6
LP		 3409 r = q;
3410 }
3411
3412finish:
3413 if (pid_set)
3414 set_free(pid_set);
3415
3416 return r;
3417}
3418
94f04347
LP		 3419static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3420 [SERVICE_DEAD] = "dead",
3421 [SERVICE_START_PRE] = "start-pre",
3422 [SERVICE_START] = "start",
3423 [SERVICE_START_POST] = "start-post",
3424 [SERVICE_RUNNING] = "running",
80876c20 3425 [SERVICE_EXITED] = "exited",
94f04347
LP		 3426 [SERVICE_RELOAD] = "reload",
3427 [SERVICE_STOP] = "stop",
3428 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3429 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3430 [SERVICE_STOP_POST] = "stop-post",
3431 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3432 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3433 [SERVICE_FAILED] = "failed",
94f04347
LP		 3434 [SERVICE_AUTO_RESTART] = "auto-restart",
3435};
3436
3437DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3438
3439static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3440 [SERVICE_RESTART_NO] = "no",
3441 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3442 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3443 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3444 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3445};
3446
3447DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3448
3449static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3450 [SERVICE_SIMPLE] = "simple",
0d624a78 3451 [SERVICE_FORKING] = "forking",
34e9ba66 3452 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3453 [SERVICE_DBUS] = "dbus",
3454 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3455};
3456
3457DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3458
e537352b 3459static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3460 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3461 [SERVICE_EXEC_START] = "ExecStart",
3462 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3463 [SERVICE_EXEC_RELOAD] = "ExecReload",
3464 [SERVICE_EXEC_STOP] = "ExecStop",
3465 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3466};
3467
3468DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3469
c952c6ec
LP		 3470static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3471 [NOTIFY_NONE] = "none",
3472 [NOTIFY_MAIN] = "main",
3473 [NOTIFY_ALL] = "all"
3474};
3475
3476DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3477
87f0e418 3478const UnitVTable service_vtable = {
5cb5a6ff 3479 .suffix = ".service",
f975e971
LP		 3480 .sections =
3481 "Unit\0"
3482 "Service\0"
3483 "Install\0",
9e58ff9c 3484 .show_status = true,
5cb5a6ff 3485
034c6ed7
LP		 3486 .init = service_init,
3487 .done = service_done,
a16e1123
LP		 3488 .load = service_load,
3489
3490 .coldplug = service_coldplug,
034c6ed7 3491
5cb5a6ff
LP		 3492 .dump = service_dump,
3493
3494 .start = service_start,
3495 .stop = service_stop,
3496 .reload = service_reload,
3497
034c6ed7
LP		 3498 .can_reload = service_can_reload,
3499
8a0867d6
LP		 3500 .kill = service_kill,
3501
a16e1123
LP		 3502 .serialize = service_serialize,
3503 .deserialize_item = service_deserialize_item,
3504
5cb5a6ff 3505 .active_state = service_active_state,
10a94420 3506 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3507
701cc384
LP		 3508 .check_gc = service_check_gc,
3509 .check_snapshot = service_check_snapshot,
3510
034c6ed7
LP		 3511 .sigchld_event = service_sigchld_event,
3512 .timer_event = service_timer_event,
2c4104f0 3513
fdf20a31 3514 .reset_failed = service_reset_failed,
5632e374 3515
5f4b19f4
LP		 3516 .need_daemon_reload = service_need_daemon_reload,
3517
8e274523 3518 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3519 .notify_message = service_notify_message,
8e274523 3520
05e343b7
LP		 3521 .bus_name_owner_change = service_bus_name_owner_change,
3522 .bus_query_pid_done = service_bus_query_pid_done,
3523
c4e2ceae 3524 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3525 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3526 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3527
07459bb6 3528#ifdef HAVE_SYSV_COMPAT
2c4104f0 3529 .enumerate = service_enumerate
07459bb6 3530#endif
5cb5a6ff 3531};
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