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execute,util: fix two small memory leaks
[thirdparty/systemd.git] / src / service.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
2c4104f0
LP		 37
38#define COMMENTS "#;\n"
39#define NEWLINES "\n\r"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
f34277d9
LP		 42
43#define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
44
09cd1ab1
LP		 45typedef enum RunlevelType {
46 RUNLEVEL_UP,
47 RUNLEVEL_DOWN,
fc5df99e 48 RUNLEVEL_SYSINIT
09cd1ab1
LP		 49} RunlevelType;
50
51static const struct {
52 const char *path;
53 const char *target;
54 const RunlevelType type;
55} rcnd_table[] = {
9d25f5ed 56 /* Standard SysV runlevels for start-up */
514f4ef5 57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 62
d4054675 63#ifdef TARGET_SUSE
cfe243e3 64 /* SUSE style boot.d */
fc5df99e 65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 66#endif
fbe9f3a9 67
f5c88ec1 68#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE)
fbe9f3a9 69 /* Debian style rcS.d */
fc5df99e 70 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 71#endif
9d25f5ed
LP		 72
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
75 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
76
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 82};
83
09cd1ab1 84#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 85/* #define RUNLEVELS_DOWN "06" */
86/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 87#endif
09cd1ab1 88
acbb0225 89static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 90 [SERVICE_DEAD] = UNIT_INACTIVE,
91 [SERVICE_START_PRE] = UNIT_ACTIVATING,
92 [SERVICE_START] = UNIT_ACTIVATING,
93 [SERVICE_START_POST] = UNIT_ACTIVATING,
94 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 95 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 96 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 97 [SERVICE_STOP] = UNIT_DEACTIVATING,
98 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
101 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 103 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 104 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 105};
5cb5a6ff 106
a16e1123
LP		 107static void service_init(Unit *u) {
108 Service *s = SERVICE(u);
109
110 assert(u);
111 assert(u->meta.load_state == UNIT_STUB);
112
113 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
114 s->restart_usec = DEFAULT_RESTART_USEC;
115 s->timer_watch.type = WATCH_INVALID;
07459bb6 116#ifdef HAVE_SYSV_COMPAT
a16e1123 117 s->sysv_start_priority = -1;
07459bb6 118#endif
a16e1123
LP		 119 s->socket_fd = -1;
120
121 exec_context_init(&s->exec_context);
122
123 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
124
125 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
126}
127
5e94833f
LP		 128static void service_unwatch_control_pid(Service *s) {
129 assert(s);
130
131 if (s->control_pid <= 0)
132 return;
133
134 unit_unwatch_pid(UNIT(s), s->control_pid);
135 s->control_pid = 0;
136}
137
138static void service_unwatch_main_pid(Service *s) {
139 assert(s);
140
141 if (s->main_pid <= 0)
142 return;
143
144 unit_unwatch_pid(UNIT(s), s->main_pid);
145 s->main_pid = 0;
146}
147
5925dd3c 148static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 149 pid_t ppid;
150
5925dd3c
LP		 151 assert(s);
152
153 if (pid <= 1)
154 return -EINVAL;
155
156 if (pid == getpid())
157 return -EINVAL;
158
e55224ca
LP		 159 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
160 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
161 s->meta.id, (unsigned long) pid);
162
5925dd3c
LP		 163 s->main_pid = pid;
164 s->main_pid_known = true;
165
b58b4116
LP		 166 exec_status_start(&s->main_exec_status, pid);
167
5925dd3c
LP		 168 return 0;
169}
170
4f2d528d
LP		 171static void service_close_socket_fd(Service *s) {
172 assert(s);
173
174 if (s->socket_fd < 0)
175 return;
176
177 close_nointr_nofail(s->socket_fd);
178 s->socket_fd = -1;
179}
180
6cf6bbc2
LP		 181static void service_connection_unref(Service *s) {
182 assert(s);
183
f976f3f6 184 if (!s->accept_socket)
6cf6bbc2
LP		 185 return;
186
f976f3f6
LP		 187 socket_connection_unref(s->accept_socket);
188 s->accept_socket = NULL;
6cf6bbc2
LP		 189}
190
87f0e418
LP		 191static void service_done(Unit *u) {
192 Service *s = SERVICE(u);
44d8db9e
LP		 193
194 assert(s);
195
196 free(s->pid_file);
197 s->pid_file = NULL;
198
07459bb6 199#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 200 free(s->sysv_path);
201 s->sysv_path = NULL;
202
8309400a
LP		 203 free(s->sysv_runlevels);
204 s->sysv_runlevels = NULL;
07459bb6 205#endif
8309400a 206
8c47c732
LP		 207 free(s->status_text);
208 s->status_text = NULL;
209
44d8db9e 210 exec_context_done(&s->exec_context);
e537352b 211 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 212 s->control_command = NULL;
213
214 /* This will leak a process, but at least no memory or any of
215 * our resources */
5e94833f
LP		 216 service_unwatch_main_pid(s);
217 service_unwatch_control_pid(s);
44d8db9e 218
05e343b7
LP		 219 if (s->bus_name) {
220 unit_unwatch_bus_name(UNIT(u), s->bus_name);
221 free(s->bus_name);
222 s->bus_name = NULL;
223 }
224
4f2d528d 225 service_close_socket_fd(s);
6cf6bbc2 226 service_connection_unref(s);
4f2d528d 227
f976f3f6
LP		 228 set_free(s->configured_sockets);
229
acbb0225 230 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 231}
232
07459bb6 233#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 234static char *sysv_translate_name(const char *name) {
235 char *r;
236
237 if (!(r = new(char, strlen(name) + sizeof(".service"))))
238 return NULL;
239
5b819198
MB		 240#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
241 if (endswith(name, ".sh"))
242 /* Drop Debian-style .sh suffix */
243 strcpy(stpcpy(r, name) - 3, ".service");
244#endif
245#ifdef TARGET_SUSE
b7ccee3c
LP		 246 if (startswith(name, "boot."))
247 /* Drop SuSE-style boot. prefix */
248 strcpy(stpcpy(r, name + 5), ".service");
5b819198 249#endif
980900c1 250#ifdef TARGET_ARCH
5b819198 251 if (startswith(name, "@"))
9f151f29
LP		 252 /* Drop Arch-style background prefix */
253 strcpy(stpcpy(r, name + 1), ".service");
65530632
MV		 254#endif
255#ifdef TARGET_FRUGALWARE
5b819198 256 if (startswith(name, "rc."))
65530632
MV		 257 /* Drop Frugalware-style rc. prefix */
258 strcpy(stpcpy(r, name + 3), ".service");
980900c1 259#endif
b7ccee3c
LP		 260 else
261 /* Normal init scripts */
262 strcpy(stpcpy(r, name), ".service");
263
264 return r;
265}
266
ee95669f 267static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 268
a7d3cc26
LP		 269 /* We silently ignore the $ prefix here. According to the LSB
270 * spec it simply indicates whether something is a
271 * standardized name or a distribution-specific one. Since we
272 * just follow what already exists and do not introduce new
273 * uses or names we don't care who introduced a new name. */
274
2c4104f0 275 static const char * const table[] = {
6464aa08 276 /* LSB defined facilities */
a7d3cc26
LP		 277 "local_fs", SPECIAL_LOCAL_FS_TARGET,
278 "network", SPECIAL_NETWORK_TARGET,
279 "named", SPECIAL_NSS_LOOKUP_TARGET,
280 "portmap", SPECIAL_RPCBIND_TARGET,
281 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
282 "syslog", SPECIAL_SYSLOG_TARGET,
283 "time", SPECIAL_RTC_SET_TARGET,
6464aa08 284
0b603b4e
KS		 285 /* common extensions */
286 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
287 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
288 "null", NULL,
289
858dae18 290#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
a7d3cc26 291 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 292#endif
3177a49c
LP		 293
294#ifdef TARGET_FEDORA
a7d3cc26
LP		 295 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
296 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
297 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 298#endif
a7d3cc26 299
0b603b4e
KS		 300#ifdef TARGET_SUSE
301 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
302#endif
2c4104f0
LP		 303 };
304
305 unsigned i;
306 char *r;
ee95669f 307 const char *n;
2c4104f0 308
ee95669f
LP		 309 assert(name);
310 assert(_r);
a7d3cc26 311
ee95669f 312 n = *name == '$' ? name + 1 : name;
a7d3cc26 313
ee95669f 314 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 315
ee95669f
LP		 316 if (!streq(table[i], n))
317 continue;
2c4104f0 318
ee95669f
LP		 319 if (!table[i+1])
320 return 0;
321
322 if (!(r = strdup(table[i+1])))
323 return -ENOMEM;
324
325 goto finish;
326 }
2c4104f0 327
a7d3cc26 328 /* If we don't know this name, fallback heuristics to figure
0003d1ab 329 * out whether something is a target or a service alias. */
a7d3cc26 330
2c4104f0 331 if (*name == '$')
ee95669f
LP		 332 /* Facilities starting with $ are most likely targets */
333 r = unit_name_build(n, NULL, ".target");
334 else if (filename && streq(name, filename))
335 /* Names equalling the file name of the services are redundant */
336 return 0;
32159d3a 337 else
ee95669f
LP		 338 /* Everything else we assume to be normal service names */
339 r = sysv_translate_name(n);
2c4104f0 340
32159d3a 341 if (!r)
2c4104f0
LP		 342 return -ENOMEM;
343
344finish:
345
346 if (_r)
347 *_r = r;
348
349 return 1;
350}
351
56d748b4 352static int sysv_fix_order(Service *s) {
2c4104f0
LP		 353 Meta *other;
354 int r;
355
356 assert(s);
357
358 if (s->sysv_start_priority < 0)
359 return 0;
360
23a177ef
LP		 361 /* For each pair of services where at least one lacks a LSB
362 * header, we use the start priority value to order things. */
2c4104f0 363
4cd1fbcc 364 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 365 Service *t;
366 UnitDependency d;
eeaafddc 367 bool special_s, special_t;
2c4104f0
LP		 368
369 t = (Service*) other;
370
371 if (s == t)
372 continue;
9f151f29
LP		 373
374 if (t->meta.load_state != UNIT_LOADED)
375 continue;
2c4104f0
LP		 376
377 if (t->sysv_start_priority < 0)
378 continue;
379
51a1a79d
LP		 380 /* If both units have modern headers we don't care
381 * about the priorities */
f21781d5
LP		 382 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
383 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 384 continue;
385
eeaafddc
LP		 386 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
387 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
388
389 if (special_t && !special_s)
390 d = UNIT_AFTER;
391 else if (special_s && !special_t)
392 d = UNIT_BEFORE;
393 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 394 d = UNIT_AFTER;
395 else if (t->sysv_start_priority > s->sysv_start_priority)
396 d = UNIT_BEFORE;
397 else
398 continue;
399
400 /* FIXME: Maybe we should compare the name here lexicographically? */
401
701cc384 402 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 403 return r;
404 }
405
406 return 0;
407}
408
409static ExecCommand *exec_command_new(const char *path, const char *arg1) {
410 ExecCommand *c;
411
412 if (!(c = new0(ExecCommand, 1)))
413 return NULL;
414
415 if (!(c->path = strdup(path))) {
416 free(c);
417 return NULL;
418 }
419
420 if (!(c->argv = strv_new(path, arg1, NULL))) {
421 free(c->path);
422 free(c);
423 return NULL;
424 }
425
426 return c;
427}
428
429static int sysv_exec_commands(Service *s) {
430 ExecCommand *c;
431
432 assert(s);
433 assert(s->sysv_path);
434
435 if (!(c = exec_command_new(s->sysv_path, "start")))
436 return -ENOMEM;
437 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
438
439 if (!(c = exec_command_new(s->sysv_path, "stop")))
440 return -ENOMEM;
441 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
442
443 if (!(c = exec_command_new(s->sysv_path, "reload")))
444 return -ENOMEM;
445 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
446
447 return 0;
448}
449
e537352b 450static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 451 FILE *f;
452 Unit *u;
453 unsigned line = 0;
454 int r;
455 enum {
456 NORMAL,
457 DESCRIPTION,
458 LSB,
459 LSB_DESCRIPTION
460 } state = NORMAL;
0b5d26f9 461 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 462
463 assert(s);
464 assert(path);
2c4104f0
LP		 465
466 u = UNIT(s);
467
468 if (!(f = fopen(path, "re"))) {
469 r = errno == ENOENT ? 0 : -errno;
470 goto finish;
471 }
472
2c4104f0
LP		 473 free(s->sysv_path);
474 if (!(s->sysv_path = strdup(path))) {
475 r = -ENOMEM;
476 goto finish;
477 }
478
479 while (!feof(f)) {
480 char l[LINE_MAX], *t;
481
482 if (!fgets(l, sizeof(l), f)) {
483 if (feof(f))
484 break;
485
486 r = -errno;
487 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
488 goto finish;
489 }
490
491 line++;
492
493 t = strstrip(l);
494 if (*t != '#')
495 continue;
496
497 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
498 state = LSB;
23a177ef 499 s->sysv_has_lsb = true;
2c4104f0
LP		 500 continue;
501 }
502
503 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
504 state = NORMAL;
505 continue;
506 }
507
508 t++;
509 t += strspn(t, WHITESPACE);
510
511 if (state == NORMAL) {
512
513 /* Try to parse Red Hat style chkconfig headers */
514
c2b35af6 515 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 516 int start_priority;
8309400a 517 char runlevels[16], *k;
2c4104f0
LP		 518
519 state = NORMAL;
520
8309400a
LP		 521 if (sscanf(t+10, "%15s %i %*i",
522 runlevels,
523 &start_priority) != 2) {
2c4104f0
LP		 524
525 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
526 continue;
527 }
528
fbe9f3a9
LP		 529 /* A start priority gathered from the
530 * symlink farms is preferred over the
531 * data from the LSB header. */
8309400a 532 if (start_priority < 0 || start_priority > 99)
2c4104f0 533 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 534 else if (s->sysv_start_priority < 0)
8309400a
LP		 535 s->sysv_start_priority = start_priority;
536
537 char_array_0(runlevels);
538 k = delete_chars(runlevels, WHITESPACE "-");
539
540 if (k[0]) {
541 char *d;
542
543 if (!(d = strdup(k))) {
544 r = -ENOMEM;
545 goto finish;
546 }
547
548 free(s->sysv_runlevels);
549 s->sysv_runlevels = d;
2c4104f0
LP		 550 }
551
0b5d26f9 552 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 553
554 size_t k = strlen(t);
555 char *d;
0b5d26f9 556 const char *j;
2c4104f0
LP		 557
558 if (t[k-1] == '\\') {
559 state = DESCRIPTION;
560 t[k-1] = 0;
561 }
562
0b5d26f9
LP		 563 if ((j = strstrip(t+12)) && *j) {
564 if (!(d = strdup(j))) {
565 r = -ENOMEM;
566 goto finish;
567 }
568 } else
569 d = NULL;
2c4104f0 570
0b5d26f9
LP		 571 free(chkconfig_description);
572 chkconfig_description = d;
2c4104f0 573
c2b35af6 574 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 575
576 char *fn;
577
578 state = NORMAL;
579
580 fn = strstrip(t+8);
581 if (!path_is_absolute(fn)) {
582 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
583 continue;
584 }
585
586 if (!(fn = strdup(fn))) {
587 r = -ENOMEM;
588 goto finish;
589 }
590
591 free(s->pid_file);
592 s->pid_file = fn;
593 }
594
595 } else if (state == DESCRIPTION) {
596
597 /* Try to parse Red Hat style description
598 * continuation */
599
600 size_t k = strlen(t);
0b5d26f9 601 char *j;
2c4104f0
LP		 602
603 if (t[k-1] == '\\')
604 t[k-1] = 0;
605 else
606 state = NORMAL;
607
0b5d26f9
LP		 608 if ((j = strstrip(t)) && *j) {
609 char *d = NULL;
610
611 if (chkconfig_description)
612 asprintf(&d, "%s %s", chkconfig_description, j);
613 else
614 d = strdup(j);
2c4104f0 615
0b5d26f9
LP		 616 if (!d) {
617 r = -ENOMEM;
618 goto finish;
619 }
620
621 free(chkconfig_description);
622 chkconfig_description = d;
623 }
2c4104f0
LP		 624
625 } else if (state == LSB || state == LSB_DESCRIPTION) {
626
c2b35af6 627 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 628 char *i, *w;
629 size_t z;
630
631 state = LSB;
632
f60f22df 633 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 634 char *n, *m;
635
636 if (!(n = strndup(w, z))) {
637 r = -ENOMEM;
638 goto finish;
639 }
640
ee95669f 641 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 642 free(n);
643
644 if (r < 0)
645 goto finish;
646
647 if (r == 0)
648 continue;
649
bd77d0fc
LP		 650 if (unit_name_to_type(m) == UNIT_SERVICE)
651 r = unit_add_name(u, m);
c68364b7
LP		 652 else {
653 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
654
655 if (s->sysv_enabled) {
656 int k;
657
658 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
659 r = k;
660 }
661 }
bd77d0fc 662
2c4104f0 663 if (r < 0)
43a37549 664 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 665
666 free(m);
2c4104f0
LP		 667 }
668
c2b35af6
LP		 669 } else if (startswith_no_case(t, "Required-Start:") ||
670 startswith_no_case(t, "Should-Start:") ||
671 startswith_no_case(t, "X-Start-Before:") ||
672 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 673 char *i, *w;
674 size_t z;
675
676 state = LSB;
677
f60f22df 678 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 679 char *n, *m;
680
681 if (!(n = strndup(w, z))) {
682 r = -ENOMEM;
683 goto finish;
684 }
685
ee95669f 686 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 687 free(n);
688
689 if (r < 0)
690 goto finish;
691
692 if (r == 0)
693 continue;
694
c2b35af6 695 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 696
697 if (r < 0)
43a37549 698 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 699
700 free(m);
2c4104f0 701 }
c2b35af6 702 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 703 char *k, *d;
704
705 state = LSB;
706
707 k = delete_chars(t+14, WHITESPACE "-");
708
709 if (k[0] != 0) {
710 if (!(d = strdup(k))) {
711 r = -ENOMEM;
712 goto finish;
713 }
714
715 free(s->sysv_runlevels);
716 s->sysv_runlevels = d;
717 }
2c4104f0 718
0b5d26f9
LP		 719 } else if (startswith_no_case(t, "Description:")) {
720 char *d, *j;
ed4c1cc6 721
2c4104f0
LP		 722 state = LSB_DESCRIPTION;
723
0b5d26f9
LP		 724 if ((j = strstrip(t+12)) && *j) {
725 if (!(d = strdup(j))) {
726 r = -ENOMEM;
727 goto finish;
728 }
729 } else
730 d = NULL;
2c4104f0 731
0b5d26f9
LP		 732 free(long_description);
733 long_description = d;
2c4104f0 734
ed4c1cc6 735 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 736 char *d, *j;
2c4104f0 737
2c4104f0
LP		 738 state = LSB;
739
0b5d26f9
LP		 740 if ((j = strstrip(t+18)) && *j) {
741 if (!(d = strdup(j))) {
742 r = -ENOMEM;
743 goto finish;
744 }
745 } else
746 d = NULL;
2c4104f0 747
0b5d26f9
LP		 748 free(short_description);
749 short_description = d;
2c4104f0 750
723c83fd
LP		 751 } else if (startswith_no_case(t, "X-Interactive:")) {
752 int b;
753
754 if ((b = parse_boolean(strstrip(t+14))) < 0) {
755 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
756 continue;
757 }
758
759 if (b)
760 s->exec_context.std_input = EXEC_INPUT_TTY;
761 else
762 s->exec_context.std_input = EXEC_INPUT_NULL;
763
2c4104f0
LP		 764 } else if (state == LSB_DESCRIPTION) {
765
766 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 767 char *j;
2c4104f0 768
0b5d26f9
LP		 769 if ((j = strstrip(t)) && *j) {
770 char *d = NULL;
771
772 if (long_description)
773 asprintf(&d, "%s %s", long_description, t);
774 else
775 d = strdup(j);
776
777 if (!d) {
778 r = -ENOMEM;
779 goto finish;
780 }
781
782 free(long_description);
783 long_description = d;
2c4104f0
LP		 784 }
785
2c4104f0
LP		 786 } else
787 state = LSB;
788 }
789 }
790 }
791
2c4104f0
LP		 792 if ((r = sysv_exec_commands(s)) < 0)
793 goto finish;
794
a40eb732 795 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 796 /* If there a runlevels configured for this service
797 * but none of the standard ones, then we assume this
798 * is some special kind of service (which might be
799 * needed for early boot) and don't create any links
800 * to it. */
801
a40eb732 802 s->meta.default_dependencies = false;
09cd1ab1 803
09cd1ab1
LP		 804 /* Don't timeout special services during boot (like fsck) */
805 s->timeout_usec = 0;
f34277d9
LP		 806 } else
807 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 808
80876c20 809 /* Special setting for all SysV services */
1f48cf56 810 s->type = SERVICE_FORKING;
02ee865a 811 s->remain_after_exit = true;
525ee6f4 812 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 813 s->exec_context.std_output =
814 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
815 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
2e22afe9 816 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 817
0b5d26f9
LP		 818 /* We use the long description only if
819 * no short description is set. */
820
821 if (short_description)
822 description = short_description;
823 else if (chkconfig_description)
824 description = chkconfig_description;
825 else if (long_description)
826 description = long_description;
827 else
828 description = NULL;
829
830 if (description) {
831 char *d;
832
833 if (!(d = strappend("LSB: ", description))) {
834 r = -ENOMEM;
835 goto finish;
836 }
837
838 u->meta.description = d;
839 }
840
e537352b 841 u->meta.load_state = UNIT_LOADED;
23a177ef 842 r = 0;
2c4104f0
LP		 843
844finish:
845
846 if (f)
847 fclose(f);
848
0b5d26f9
LP		 849 free(short_description);
850 free(long_description);
851 free(chkconfig_description);
852
2c4104f0
LP		 853 return r;
854}
855
e537352b 856static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 857 char **p;
858
859 assert(s);
860 assert(name);
861
e1992852 862 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 863 * prefixes/suffixes. */
5b819198
MB		 864#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
865 if (endswith(name, ".sh.service"))
d017c6ca 866 return -ENOENT;
5b819198
MB		 867#endif
868
869#ifdef TARGET_SUSE
870 if (startswith(name, "boot."))
871 return -ENOENT;
872#endif
873
874#ifdef TARGET_FRUGALWARE
875 if (startswith(name, "rc."))
876 return -ENOENT;
877#endif
d017c6ca 878
4cd1fbcc 879 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 880 char *path;
881 int r;
882
883 if (asprintf(&path, "%s/%s", *p, name) < 0)
884 return -ENOMEM;
885
886 assert(endswith(path, ".service"));
887 path[strlen(path)-8] = 0;
888
e537352b 889 r = service_load_sysv_path(s, path);
fbe9f3a9 890
e1992852 891#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
4cd1fbcc 892 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 893 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 894 strcat(path, ".sh");
895 r = service_load_sysv_path(s, path);
896 }
e1992852 897#endif
2c4104f0
LP		 898 free(path);
899
e1992852 900#ifdef TARGET_SUSE
4cd1fbcc 901 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 902 /* Try SUSE style boot.* init scripts */
fbe9f3a9
LP		 903
904 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
905 return -ENOMEM;
906
e1992852 907 /* Drop .service suffix */
fbe9f3a9
LP		 908 path[strlen(path)-8] = 0;
909 r = service_load_sysv_path(s, path);
910 free(path);
911 }
e1992852 912#endif
fbe9f3a9 913
e1992852 914#ifdef TARGET_FRUGALWARE
65530632 915 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 916 /* Try Frugalware style rc.* init scripts */
65530632
MV		 917
918 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
919 return -ENOMEM;
920
e1992852 921 /* Drop .service suffix */
65530632
MV		 922 path[strlen(path)-8] = 0;
923 r = service_load_sysv_path(s, path);
924 free(path);
925 }
e1992852 926#endif
65530632 927
23a177ef 928 if (r < 0)
2c4104f0 929 return r;
23a177ef 930
4cd1fbcc 931 if ((s->meta.load_state != UNIT_STUB))
23a177ef 932 break;
2c4104f0
LP		 933 }
934
935 return 0;
936}
937
e537352b 938static int service_load_sysv(Service *s) {
2c4104f0
LP		 939 const char *t;
940 Iterator i;
941 int r;
942
5cb5a6ff
LP		 943 assert(s);
944
945 /* Load service data from SysV init scripts, preferably with
946 * LSB headers ... */
947
4cd1fbcc 948 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 949 return 0;
950
4cd1fbcc 951 if ((t = s->meta.id))
e537352b 952 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 953 return r;
954
4cd1fbcc
LP		 955 if (s->meta.load_state == UNIT_STUB)
956 SET_FOREACH(t, s->meta.names, i) {
957 if (t == s->meta.id)
e537352b
LP		 958 continue;
959
e364ad06 960 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 961 return r;
962
4cd1fbcc 963 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 964 break;
965 }
2c4104f0
LP		 966
967 return 0;
5cb5a6ff 968}
07459bb6 969#endif
5cb5a6ff 970
9fff8a1f
LP		 971static int fsck_fix_order(Service *s) {
972 Meta *other;
973 int r;
974
975 assert(s);
976
977 if (s->fsck_passno <= 0)
978 return 0;
979
980 /* For each pair of services where both have an fsck priority
981 * we order things based on it. */
982
983 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
984 Service *t;
985 UnitDependency d;
986
987 t = (Service*) other;
988
989 if (s == t)
990 continue;
991
992 if (t->meta.load_state != UNIT_LOADED)
993 continue;
994
995 if (t->fsck_passno <= 0)
996 continue;
997
998 if (t->fsck_passno < s->fsck_passno)
999 d = UNIT_AFTER;
1000 else if (t->fsck_passno > s->fsck_passno)
1001 d = UNIT_BEFORE;
1002 else
1003 continue;
1004
1005 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1006 return r;
1007 }
1008
1009 return 0;
1010}
1011
243b1432
LP		 1012static int service_verify(Service *s) {
1013 assert(s);
1014
4cd1fbcc 1015 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1016 return 0;
1017
1018 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1019 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1020 return -EINVAL;
1021 }
1022
34e9ba66
LP		 1023 if (s->type != SERVICE_ONESHOT &&
1024 s->exec_command[SERVICE_EXEC_START]->command_next) {
1025 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1026 return -EINVAL;
1027 }
1028
05e343b7 1029 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1030 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1031 return -EINVAL;
1032 }
1033
2e22afe9 1034 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1035 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1036 return -EINVAL;
1037 }
1038
243b1432
LP		 1039 return 0;
1040}
1041
a40eb732
LP		 1042static int service_add_default_dependencies(Service *s) {
1043 int r;
1044
1045 assert(s);
1046
1047 /* Add a number of automatic dependencies useful for the
1048 * majority of services. */
1049
1050 /* First, pull in base system */
1051 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1052
1053 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1054 return r;
1055
af2d49f7 1056 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1057
1058 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1059 return r;
1060 }
1061
1062 /* Second, activate normal shutdown */
ead8e478 1063 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1064}
1065
e537352b
LP		 1066static int service_load(Unit *u) {
1067 int r;
1068 Service *s = SERVICE(u);
1069
1070 assert(s);
1e2e8133 1071
5cb5a6ff 1072 /* Load a .service file */
e537352b 1073 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1074 return r;
1075
07459bb6 1076#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1077 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1078 if (u->meta.load_state == UNIT_STUB)
1079 if ((r = service_load_sysv(s)) < 0)
23a177ef 1080 return r;
07459bb6 1081#endif
d46de8a1 1082
23a177ef 1083 /* Still nothing found? Then let's give up */
e537352b 1084 if (u->meta.load_state == UNIT_STUB)
23a177ef 1085 return -ENOENT;
034c6ed7 1086
23a177ef
LP		 1087 /* We were able to load something, then let's add in the
1088 * dropin directories. */
1089 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1090 return r;
23a177ef
LP		 1091
1092 /* This is a new unit? Then let's add in some extras */
e537352b 1093 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1094 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1095 return r;
1096
d686d8a9 1097 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1098 return r;
1099
07459bb6 1100#ifdef HAVE_SYSV_COMPAT
56d748b4 1101 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1102 return r;
07459bb6 1103#endif
05e343b7 1104
9fff8a1f
LP		 1105 if ((r = fsck_fix_order(s)) < 0)
1106 return r;
1107
ee0dd802 1108 if (s->bus_name)
05e343b7 1109 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1110 return r;
c952c6ec
LP		 1111
1112 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1113 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1114
1115 if (s->type == SERVICE_DBUS || s->bus_name)
1116 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1117 return r;
1118
1119 if (s->meta.default_dependencies)
1120 if ((r = service_add_default_dependencies(s)) < 0)
1121 return r;
8e274523
LP		 1122 }
1123
243b1432 1124 return service_verify(s);
034c6ed7
LP		 1125}
1126
87f0e418 1127static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1128
5cb5a6ff 1129 ServiceExecCommand c;
87f0e418 1130 Service *s = SERVICE(u);
47be870b
LP		 1131 const char *prefix2;
1132 char *p2;
5cb5a6ff
LP		 1133
1134 assert(s);
1135
47be870b
LP		 1136 p2 = strappend(prefix, "\t");
1137 prefix2 = p2 ? p2 : prefix;
44d8db9e 1138
5cb5a6ff 1139 fprintf(f,
81a2b7ce
LP		 1140 "%sService State: %s\n"
1141 "%sPermissionsStartOnly: %s\n"
8e274523 1142 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1143 "%sRemainAfterExit: %s\n"
c952c6ec 1144 "%sType: %s\n"
2cf3143a 1145 "%sRestart: %s\n"
c952c6ec 1146 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1147 prefix, service_state_to_string(s->state),
1148 prefix, yes_no(s->permissions_start_only),
8e274523 1149 prefix, yes_no(s->root_directory_start_only),
02ee865a 1150 prefix, yes_no(s->remain_after_exit),
c952c6ec 1151 prefix, service_type_to_string(s->type),
2cf3143a 1152 prefix, service_restart_to_string(s->restart),
c952c6ec 1153 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1154
70123e68
LP		 1155 if (s->control_pid > 0)
1156 fprintf(f,
bb00e604
LP		 1157 "%sControl PID: %lu\n",
1158 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1159
1160 if (s->main_pid > 0)
1161 fprintf(f,
bb00e604
LP		 1162 "%sMain PID: %lu\n",
1163 prefix, (unsigned long) s->main_pid);
70123e68 1164
034c6ed7
LP		 1165 if (s->pid_file)
1166 fprintf(f,
1167 "%sPIDFile: %s\n",
1168 prefix, s->pid_file);
1169
05e343b7
LP		 1170 if (s->bus_name)
1171 fprintf(f,
1172 "%sBusName: %s\n"
1173 "%sBus Name Good: %s\n",
1174 prefix, s->bus_name,
1175 prefix, yes_no(s->bus_name_good));
1176
5cb5a6ff
LP		 1177 exec_context_dump(&s->exec_context, f, prefix);
1178
e537352b 1179 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1180
44d8db9e
LP		 1181 if (!s->exec_command[c])
1182 continue;
1183
40d50879 1184 fprintf(f, "%s-> %s:\n",
94f04347 1185 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1186
1187 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1188 }
44d8db9e 1189
07459bb6 1190#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1191 if (s->sysv_path)
1192 fprintf(f,
23a177ef 1193 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1194 "%sSysV Init Script has LSB Header: %s\n"
1195 "%sSysVEnabled: %s\n",
23a177ef 1196 prefix, s->sysv_path,
9fff8a1f
LP		 1197 prefix, yes_no(s->sysv_has_lsb),
1198 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1199
1200 if (s->sysv_start_priority >= 0)
1201 fprintf(f,
9fff8a1f
LP		 1202 "%sSysVStartPriority: %i\n",
1203 prefix, s->sysv_start_priority);
2c4104f0 1204
8309400a
LP		 1205 if (s->sysv_runlevels)
1206 fprintf(f, "%sSysVRunLevels: %s\n",
1207 prefix, s->sysv_runlevels);
07459bb6 1208#endif
23a177ef 1209
9fff8a1f
LP		 1210 if (s->fsck_passno > 0)
1211 fprintf(f,
1212 "%sFsckPassNo: %i\n",
1213 prefix, s->fsck_passno);
1214
8c47c732
LP		 1215 if (s->status_text)
1216 fprintf(f, "%sStatus Text: %s\n",
1217 prefix, s->status_text);
1218
47be870b 1219 free(p2);
5cb5a6ff
LP		 1220}
1221
034c6ed7
LP		 1222static int service_load_pid_file(Service *s) {
1223 char *k;
034c6ed7 1224 int r;
5925dd3c 1225 pid_t pid;
034c6ed7
LP		 1226
1227 assert(s);
1228
1229 if (s->main_pid_known)
1230 return 0;
1231
5e94833f
LP		 1232 assert(s->main_pid <= 0);
1233
034c6ed7
LP		 1234 if (!s->pid_file)
1235 return -ENOENT;
1236
1237 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1238 return r;
1239
5925dd3c
LP		 1240 r = parse_pid(k, &pid);
1241 free(k);
034c6ed7 1242
5925dd3c
LP		 1243 if (r < 0)
1244 return r;
406eaf93 1245
5925dd3c
LP		 1246 if (kill(pid, 0) < 0 && errno != EPERM) {
1247 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1248 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1249 return -ESRCH;
1250 }
1251
5925dd3c 1252 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1253 return r;
1254
5925dd3c
LP		 1255 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1256 /* FIXME: we need to do something here */
1257 return r;
034c6ed7
LP		 1258
1259 return 0;
1260}
1261
4fbf50b3
LP		 1262static int service_search_main_pid(Service *s) {
1263 pid_t pid;
1264 int r;
1265
1266 assert(s);
1267
1268 if (s->main_pid_known)
1269 return 0;
1270
1271 assert(s->main_pid <= 0);
1272
1273 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1274 return -ENOENT;
1275
1276 if ((r = service_set_main_pid(s, pid)) < 0)
1277 return r;
1278
1279 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1280 /* FIXME: we need to do something here */
1281 return r;
1282
1283 return 0;
1284}
1285
3e33402a
LP		 1286static int service_get_sockets(Service *s, Set **_set) {
1287 Set *set;
ceee3d82
LP		 1288 Iterator i;
1289 char *t;
3e33402a 1290 int r;
ceee3d82
LP		 1291
1292 assert(s);
3e33402a
LP		 1293 assert(_set);
1294
6cf6bbc2
LP		 1295 if (s->socket_fd >= 0)
1296 return 0;
1297
f976f3f6
LP		 1298 if (!set_isempty(s->configured_sockets))
1299 return 0;
1300
3e33402a
LP		 1301 /* Collects all Socket objects that belong to this
1302 * service. Note that a service might have multiple sockets
1303 * via multiple names. */
1304
1305 if (!(set = set_new(NULL, NULL)))
1306 return -ENOMEM;
ceee3d82 1307
4cd1fbcc 1308 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1309 char *k;
1310 Unit *p;
1311
1312 /* Look for all socket objects that go by any of our
1313 * units and collect their fds */
1314
3e33402a
LP		 1315 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1316 r = -ENOMEM;
1317 goto fail;
1318 }
ceee3d82 1319
4cd1fbcc 1320 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1321 free(k);
1322
8d567588
LP		 1323 if (!p)
1324 continue;
ceee3d82 1325
3e33402a
LP		 1326 if ((r = set_put(set, p)) < 0)
1327 goto fail;
ceee3d82
LP		 1328 }
1329
3e33402a
LP		 1330 *_set = set;
1331 return 0;
1332
1333fail:
1334 set_free(set);
1335 return r;
1336}
1337
e537352b 1338static int service_notify_sockets_dead(Service *s) {
3e33402a 1339 Iterator i;
f976f3f6 1340 Set *set, *free_set = NULL;
47be870b 1341 Socket *sock;
3e33402a
LP		 1342 int r;
1343
1344 assert(s);
1345
f976f3f6
LP		 1346 /* Notifies all our sockets when we die */
1347
6cf6bbc2
LP		 1348 if (s->socket_fd >= 0)
1349 return 0;
1350
f976f3f6
LP		 1351 if (!set_isempty(s->configured_sockets))
1352 set = s->configured_sockets;
1353 else {
1354 if ((r = service_get_sockets(s, &free_set)) < 0)
1355 return r;
1356
1357 set = free_set;
1358 }
3e33402a 1359
47be870b
LP		 1360 SET_FOREACH(sock, set, i)
1361 socket_notify_service_dead(sock);
3e33402a 1362
f976f3f6 1363 set_free(free_set);
3e33402a 1364
ceee3d82
LP		 1365 return 0;
1366}
1367
034c6ed7
LP		 1368static void service_set_state(Service *s, ServiceState state) {
1369 ServiceState old_state;
5cb5a6ff
LP		 1370 assert(s);
1371
034c6ed7 1372 old_state = s->state;
5cb5a6ff 1373 s->state = state;
034c6ed7
LP		 1374
1375 if (state != SERVICE_START_PRE &&
1376 state != SERVICE_START &&
1377 state != SERVICE_START_POST &&
1378 state != SERVICE_RELOAD &&
1379 state != SERVICE_STOP &&
1380 state != SERVICE_STOP_SIGTERM &&
1381 state != SERVICE_STOP_SIGKILL &&
1382 state != SERVICE_STOP_POST &&
1383 state != SERVICE_FINAL_SIGTERM &&
1384 state != SERVICE_FINAL_SIGKILL &&
1385 state != SERVICE_AUTO_RESTART)
acbb0225 1386 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1387
7d55e835
LP		 1388 if (state != SERVICE_START &&
1389 state != SERVICE_START_POST &&
034c6ed7
LP		 1390 state != SERVICE_RUNNING &&
1391 state != SERVICE_RELOAD &&
1392 state != SERVICE_STOP &&
1393 state != SERVICE_STOP_SIGTERM &&
1394 state != SERVICE_STOP_SIGKILL)
5e94833f 1395 service_unwatch_main_pid(s);
034c6ed7
LP		 1396
1397 if (state != SERVICE_START_PRE &&
1398 state != SERVICE_START &&
1399 state != SERVICE_START_POST &&
1400 state != SERVICE_RELOAD &&
1401 state != SERVICE_STOP &&
1402 state != SERVICE_STOP_SIGTERM &&
1403 state != SERVICE_STOP_SIGKILL &&
1404 state != SERVICE_STOP_POST &&
1405 state != SERVICE_FINAL_SIGTERM &&
e537352b 1406 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1407 service_unwatch_control_pid(s);
034c6ed7 1408 s->control_command = NULL;
a16e1123 1409 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1410 }
034c6ed7 1411
ceee3d82
LP		 1412 if (state == SERVICE_DEAD ||
1413 state == SERVICE_STOP ||
1414 state == SERVICE_STOP_SIGTERM ||
1415 state == SERVICE_STOP_SIGKILL ||
1416 state == SERVICE_STOP_POST ||
1417 state == SERVICE_FINAL_SIGTERM ||
1418 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1419 state == SERVICE_FAILED ||
ceee3d82 1420 state == SERVICE_AUTO_RESTART)
e537352b 1421 service_notify_sockets_dead(s);
ceee3d82 1422
4f2d528d
LP		 1423 if (state != SERVICE_START_PRE &&
1424 state != SERVICE_START &&
6cf6bbc2
LP		 1425 state != SERVICE_START_POST &&
1426 state != SERVICE_RUNNING &&
1427 state != SERVICE_RELOAD &&
1428 state != SERVICE_STOP &&
1429 state != SERVICE_STOP_SIGTERM &&
1430 state != SERVICE_STOP_SIGKILL &&
1431 state != SERVICE_STOP_POST &&
1432 state != SERVICE_FINAL_SIGTERM &&
1433 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1434 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1435 service_close_socket_fd(s);
6cf6bbc2
LP		 1436 service_connection_unref(s);
1437 }
4f2d528d 1438
f6023656
LP		 1439 /* For the inactive states unit_notify() will trim the cgroup,
1440 * but for exit we have to do that ourselves... */
1441 if (state == SERVICE_EXITED)
1442 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1443
e537352b 1444 if (old_state != state)
4cd1fbcc 1445 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1446
1447 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1448}
1449
a16e1123
LP		 1450static int service_coldplug(Unit *u) {
1451 Service *s = SERVICE(u);
1452 int r;
1453
1454 assert(s);
1455 assert(s->state == SERVICE_DEAD);
1456
1457 if (s->deserialized_state != s->state) {
1458
1459 if (s->deserialized_state == SERVICE_START_PRE ||
1460 s->deserialized_state == SERVICE_START ||
1461 s->deserialized_state == SERVICE_START_POST ||
1462 s->deserialized_state == SERVICE_RELOAD ||
1463 s->deserialized_state == SERVICE_STOP ||
1464 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1465 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1466 s->deserialized_state == SERVICE_STOP_POST ||
1467 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1468 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1469 s->deserialized_state == SERVICE_AUTO_RESTART) {
1470
1471 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1472 usec_t k;
1473
1474 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1475
1476 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1477 return r;
1478 }
1479 }
a16e1123
LP		 1480
1481 if ((s->deserialized_state == SERVICE_START &&
1482 (s->type == SERVICE_FORKING ||
8c47c732 1483 s->type == SERVICE_DBUS ||
34e9ba66 1484 s->type == SERVICE_ONESHOT ||
8c47c732 1485 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1486 s->deserialized_state == SERVICE_START_POST ||
1487 s->deserialized_state == SERVICE_RUNNING ||
1488 s->deserialized_state == SERVICE_RELOAD ||
1489 s->deserialized_state == SERVICE_STOP ||
1490 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1491 s->deserialized_state == SERVICE_STOP_SIGKILL)
1492 if (s->main_pid > 0)
1493 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1494 return r;
1495
1496 if (s->deserialized_state == SERVICE_START_PRE ||
1497 s->deserialized_state == SERVICE_START ||
1498 s->deserialized_state == SERVICE_START_POST ||
1499 s->deserialized_state == SERVICE_RELOAD ||
1500 s->deserialized_state == SERVICE_STOP ||
1501 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1502 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1503 s->deserialized_state == SERVICE_STOP_POST ||
1504 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1505 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1506 if (s->control_pid > 0)
1507 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1508 return r;
1509
1510 service_set_state(s, s->deserialized_state);
1511 }
1512
1513 return 0;
1514}
1515
44d8db9e
LP		 1516static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1517 Iterator i;
1518 int r;
1519 int *rfds = NULL;
1520 unsigned rn_fds = 0;
f976f3f6 1521 Set *set, *free_set = NULL;
47be870b 1522 Socket *sock;
44d8db9e
LP		 1523
1524 assert(s);
1525 assert(fds);
1526 assert(n_fds);
1527
6cf6bbc2
LP		 1528 if (s->socket_fd >= 0)
1529 return 0;
1530
f976f3f6
LP		 1531 if (!set_isempty(s->configured_sockets))
1532 set = s->configured_sockets;
1533 else {
1534 if ((r = service_get_sockets(s, &free_set)) < 0)
1535 return r;
1536
1537 set = free_set;
1538 }
3e33402a 1539
47be870b 1540 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1541 int *cfds;
1542 unsigned cn_fds;
1543
47be870b 1544 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1545 goto fail;
1546
1547 if (!cfds)
1548 continue;
1549
1550 if (!rfds) {
1551 rfds = cfds;
1552 rn_fds = cn_fds;
1553 } else {
1554 int *t;
1555
1556 if (!(t = new(int, rn_fds+cn_fds))) {
1557 free(cfds);
1558 r = -ENOMEM;
1559 goto fail;
1560 }
1561
1562 memcpy(t, rfds, rn_fds);
1563 memcpy(t+rn_fds, cfds, cn_fds);
1564 free(rfds);
1565 free(cfds);
1566
1567 rfds = t;
1568 rn_fds = rn_fds+cn_fds;
1569 }
1570 }
1571
1572 *fds = rfds;
1573 *n_fds = rn_fds;
3e33402a 1574
f976f3f6 1575 set_free(free_set);
3e33402a 1576
44d8db9e
LP		 1577 return 0;
1578
1579fail:
3e33402a 1580 set_free(set);
44d8db9e 1581 free(rfds);
3e33402a 1582
44d8db9e
LP		 1583 return r;
1584}
1585
81a2b7ce
LP		 1586static int service_spawn(
1587 Service *s,
1588 ExecCommand *c,
1589 bool timeout,
1590 bool pass_fds,
1591 bool apply_permissions,
1592 bool apply_chroot,
1e3ad081 1593 bool apply_tty_stdin,
c952c6ec 1594 bool set_notify_socket,
81a2b7ce
LP		 1595 pid_t *_pid) {
1596
034c6ed7
LP		 1597 pid_t pid;
1598 int r;
6cf6bbc2 1599 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1600 unsigned n_fds = 0, n_env = 0;
1601 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1602
1603 assert(s);
1604 assert(c);
1605 assert(_pid);
1606
6cf6bbc2
LP		 1607 if (pass_fds ||
1608 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1609 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1610 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1611
4f2d528d
LP		 1612 if (s->socket_fd >= 0) {
1613 fds = &s->socket_fd;
1614 n_fds = 1;
6cf6bbc2
LP		 1615 } else {
1616 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1617 goto fail;
1618
1619 fds = fdsbuf;
1620 }
4f2d528d 1621 }
44d8db9e 1622
e558336f 1623 if (timeout && s->timeout_usec) {
acbb0225 1624 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1625 goto fail;
1626 } else
acbb0225 1627 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1628
9e2f7c11
LP		 1629 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1630 r = -ENOMEM;
1631 goto fail;
1632 }
1633
9865f3b4 1634 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1635 r = -ENOMEM;
1636 goto fail;
1637 }
c952c6ec 1638
2105e76a
LP		 1639 if (set_notify_socket)
1640 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1641 r = -ENOMEM;
1642 goto fail;
1643 }
1644
2105e76a
LP		 1645 if (s->main_pid > 0)
1646 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1647 r = -ENOMEM;
1648 goto fail;
1649 }
2105e76a
LP		 1650
1651 if (!(final_env = strv_env_merge(2,
1652 s->meta.manager->environment,
1653 our_env,
1654 NULL))) {
1655 r = -ENOMEM;
1656 goto fail;
1657 }
c952c6ec 1658
9e2f7c11
LP		 1659 r = exec_spawn(c,
1660 argv,
1661 &s->exec_context,
1662 fds, n_fds,
2105e76a 1663 final_env,
9e2f7c11
LP		 1664 apply_permissions,
1665 apply_chroot,
1e3ad081 1666 apply_tty_stdin,
4cd1fbcc
LP		 1667 s->meta.manager->confirm_spawn,
1668 s->meta.cgroup_bondings,
9e2f7c11
LP		 1669 &pid);
1670
9e2f7c11 1671 if (r < 0)
034c6ed7
LP		 1672 goto fail;
1673
4f2d528d 1674
87f0e418 1675 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1676 /* FIXME: we need to do something here */
1677 goto fail;
1678
2105e76a
LP		 1679 free(fdsbuf);
1680 strv_free(argv);
1681 strv_free(our_env);
1682 strv_free(final_env);
1683
034c6ed7
LP		 1684 *_pid = pid;
1685
5cb5a6ff 1686 return 0;
034c6ed7
LP		 1687
1688fail:
2105e76a 1689 free(fdsbuf);
c952c6ec 1690 strv_free(argv);
2105e76a
LP		 1691 strv_free(our_env);
1692 strv_free(final_env);
c952c6ec 1693
034c6ed7 1694 if (timeout)
acbb0225 1695 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1696
1697 return r;
1698}
1699
80876c20
LP		 1700static int main_pid_good(Service *s) {
1701 assert(s);
1702
1703 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1704 * don't know */
1705
1706 /* If we know the pid file, then lets just check if it is
1707 * still valid */
1708 if (s->main_pid_known)
1709 return s->main_pid > 0;
1710
1711 /* We don't know the pid */
1712 return -EAGAIN;
1713}
1714
1715static int control_pid_good(Service *s) {
1716 assert(s);
1717
1718 return s->control_pid > 0;
1719}
1720
1721static int cgroup_good(Service *s) {
1722 int r;
1723
1724 assert(s);
1725
4cd1fbcc 1726 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1727 return r;
1728
1729 return !r;
1730}
1731
034c6ed7
LP		 1732static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1733 int r;
1734 assert(s);
1735
1736 if (!success)
1737 s->failure = true;
1738
1739 if (allow_restart &&
47342320 1740 !s->forbid_restart &&
034c6ed7 1741 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1742 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1743 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1744 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1745 (s->main_exec_status.code == CLD_KILLED ||
1746 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1747
acbb0225 1748 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1749 goto fail;
1750
1751 service_set_state(s, SERVICE_AUTO_RESTART);
1752 } else
fdf20a31 1753 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1754
47342320
LP		 1755 s->forbid_restart = false;
1756
034c6ed7
LP		 1757 return;
1758
1759fail:
4cd1fbcc 1760 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1761 service_enter_dead(s, false, false);
1762}
1763
1764static void service_enter_signal(Service *s, ServiceState state, bool success);
1765
1766static void service_enter_stop_post(Service *s, bool success) {
1767 int r;
1768 assert(s);
1769
1770 if (!success)
1771 s->failure = true;
1772
5e94833f
LP		 1773 service_unwatch_control_pid(s);
1774
a16e1123 1775 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1776 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1777 if ((r = service_spawn(s,
1778 s->control_command,
1779 true,
1780 false,
1781 !s->permissions_start_only,
1782 !s->root_directory_start_only,
1e3ad081 1783 true,
c952c6ec 1784 false,
81a2b7ce 1785 &s->control_pid)) < 0)
034c6ed7
LP		 1786 goto fail;
1787
d6ea93e3 1788
80876c20
LP		 1789 service_set_state(s, SERVICE_STOP_POST);
1790 } else
1791 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1792
1793 return;
1794
1795fail:
4cd1fbcc 1796 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1797 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1798}
1799
1800static void service_enter_signal(Service *s, ServiceState state, bool success) {
1801 int r;
ca949c9d
LP		 1802 Set *pid_set = NULL;
1803 bool wait_for_exit = false;
034c6ed7
LP		 1804
1805 assert(s);
1806
1807 if (!success)
1808 s->failure = true;
1809
2e22afe9
LP		 1810 if (s->exec_context.kill_mode != KILL_NONE) {
1811 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1812
ca949c9d
LP		 1813 if (s->main_pid > 0) {
1814 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1815 -s->main_pid :
1816 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1817
ca949c9d
LP		 1818 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1819 else
1820 wait_for_exit = true;
034c6ed7
LP		 1821 }
1822
ca949c9d
LP		 1823 if (s->control_pid > 0) {
1824 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1825 -s->control_pid :
1826 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1827
ca949c9d
LP		 1828 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1829 else
1830 wait_for_exit = true;
1831 }
50159e6a 1832
ca949c9d 1833 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1834
ca949c9d
LP		 1835 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1836 r = -ENOMEM;
50159e6a 1837 goto fail;
ca949c9d
LP		 1838 }
1839
1840 /* Exclude the main/control pids from being killed via the cgroup */
1841 if (s->main_pid > 0)
1842 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1843 goto fail;
1844
1845 if (s->control_pid > 0)
1846 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1847 goto fail;
1848
1849 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1850 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1851 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1852 } else if (r > 0)
ca949c9d
LP		 1853 wait_for_exit = true;
1854
1855 set_free(pid_set);
50159e6a 1856 }
d6ea93e3 1857 }
034c6ed7 1858
ca949c9d 1859 if (wait_for_exit) {
e558336f
LP		 1860 if (s->timeout_usec > 0)
1861 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1862 goto fail;
d6ea93e3 1863
80876c20
LP		 1864 service_set_state(s, state);
1865 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1866 service_enter_stop_post(s, true);
1867 else
034c6ed7
LP		 1868 service_enter_dead(s, true, true);
1869
1870 return;
1871
1872fail:
4cd1fbcc 1873 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1874
80876c20 1875 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1876 service_enter_stop_post(s, false);
1877 else
1878 service_enter_dead(s, false, true);
ca949c9d
LP		 1879
1880 if (pid_set)
1881 set_free(pid_set);
034c6ed7
LP		 1882}
1883
1884static void service_enter_stop(Service *s, bool success) {
1885 int r;
5925dd3c 1886
034c6ed7
LP		 1887 assert(s);
1888
1889 if (!success)
1890 s->failure = true;
1891
5e94833f
LP		 1892 service_unwatch_control_pid(s);
1893
a16e1123 1894 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1895 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1896 if ((r = service_spawn(s,
1897 s->control_command,
1898 true,
1899 false,
1900 !s->permissions_start_only,
1901 !s->root_directory_start_only,
c952c6ec 1902 false,
1e3ad081 1903 false,
e55224ca 1904 &s->control_pid)) < 0)
034c6ed7
LP		 1905 goto fail;
1906
80876c20
LP		 1907 service_set_state(s, SERVICE_STOP);
1908 } else
034c6ed7
LP		 1909 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1910
1911 return;
1912
1913fail:
4cd1fbcc 1914 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1915 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1916}
1917
80876c20 1918static void service_enter_running(Service *s, bool success) {
4eab639f 1919 int main_pid_ok, cgroup_ok;
80876c20
LP		 1920 assert(s);
1921
1922 if (!success)
1923 s->failure = true;
1924
4eab639f
LP		 1925 main_pid_ok = main_pid_good(s);
1926 cgroup_ok = cgroup_good(s);
1927
1928 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1929 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1930 service_set_state(s, SERVICE_RUNNING);
02ee865a 1931 else if (s->remain_after_exit)
80876c20
LP		 1932 service_set_state(s, SERVICE_EXITED);
1933 else
1934 service_enter_stop(s, true);
1935}
1936
034c6ed7
LP		 1937static void service_enter_start_post(Service *s) {
1938 int r;
1939 assert(s);
1940
5e94833f
LP		 1941 service_unwatch_control_pid(s);
1942
a16e1123 1943 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1944 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1945 if ((r = service_spawn(s,
1946 s->control_command,
1947 true,
1948 false,
1949 !s->permissions_start_only,
1950 !s->root_directory_start_only,
c952c6ec 1951 false,
1e3ad081 1952 false,
e55224ca 1953 &s->control_pid)) < 0)
034c6ed7
LP		 1954 goto fail;
1955
80876c20
LP		 1956 service_set_state(s, SERVICE_START_POST);
1957 } else
1958 service_enter_running(s, true);
034c6ed7
LP		 1959
1960 return;
1961
1962fail:
4cd1fbcc 1963 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1964 service_enter_stop(s, false);
1965}
1966
1967static void service_enter_start(Service *s) {
1968 pid_t pid;
1969 int r;
1970
1971 assert(s);
1972
1973 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1974 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1975
80876c20
LP		 1976 if (s->type == SERVICE_FORKING)
1977 service_unwatch_control_pid(s);
1978 else
1979 service_unwatch_main_pid(s);
1980
34e9ba66
LP		 1981 s->control_command_id = SERVICE_EXEC_START;
1982 s->control_command = s->exec_command[SERVICE_EXEC_START];
1983
81a2b7ce 1984 if ((r = service_spawn(s,
34e9ba66 1985 s->control_command,
8c47c732 1986 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1987 true,
1988 true,
1989 true,
1e3ad081 1990 true,
c952c6ec 1991 s->notify_access != NOTIFY_NONE,
81a2b7ce 1992 &pid)) < 0)
034c6ed7
LP		 1993 goto fail;
1994
1995 if (s->type == SERVICE_SIMPLE) {
1996 /* For simple services we immediately start
1997 * the START_POST binaries. */
1998
5925dd3c 1999 service_set_main_pid(s, pid);
034c6ed7
LP		 2000 service_enter_start_post(s);
2001
2002 } else if (s->type == SERVICE_FORKING) {
2003
2004 /* For forking services we wait until the start
2005 * process exited. */
2006
e55224ca 2007 s->control_pid = pid;
80876c20
LP		 2008 service_set_state(s, SERVICE_START);
2009
34e9ba66 2010 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2011 s->type == SERVICE_DBUS ||
2012 s->type == SERVICE_NOTIFY) {
7d55e835 2013
34e9ba66 2014 /* For oneshot services we wait until the start
7d55e835
LP		 2015 * process exited, too, but it is our main process. */
2016
05e343b7 2017 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2018 * but wait for the bus name to appear on the
2019 * bus. Notify services are similar. */
05e343b7 2020
5925dd3c 2021 service_set_main_pid(s, pid);
80876c20 2022 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2023 } else
2024 assert_not_reached("Unknown service type");
2025
2026 return;
2027
2028fail:
4cd1fbcc 2029 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2030 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2031}
2032
2033static void service_enter_start_pre(Service *s) {
2034 int r;
2035
2036 assert(s);
2037
5e94833f
LP		 2038 service_unwatch_control_pid(s);
2039
a16e1123 2040 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 2041 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
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,
1e3ad081 2048 true,
c952c6ec 2049 false,
e55224ca 2050 &s->control_pid)) < 0)
034c6ed7
LP		 2051 goto fail;
2052
80876c20
LP		 2053 service_set_state(s, SERVICE_START_PRE);
2054 } else
034c6ed7
LP		 2055 service_enter_start(s);
2056
2057 return;
2058
2059fail:
4cd1fbcc 2060 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2061 service_enter_dead(s, false, true);
2062}
2063
2064static void service_enter_restart(Service *s) {
2065 int r;
398ef8ba
LP		 2066 DBusError error;
2067
034c6ed7 2068 assert(s);
398ef8ba 2069 dbus_error_init(&error);
034c6ed7 2070
2edfa366
LP		 2071 if (s->meta.job) {
2072 log_info("Job pending for unit, delaying automatic restart.");
2073
2074 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2075 goto fail;
2076 }
2077
9ea9a0c8
LP		 2078 service_enter_dead(s, true, false);
2079
7b2603e6 2080 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2081 goto fail;
2082
4cd1fbcc 2083 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2084 return;
2085
2086fail:
398ef8ba 2087 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2088 service_enter_dead(s, false, false);
398ef8ba
LP		 2089
2090 dbus_error_free(&error);
034c6ed7
LP		 2091}
2092
2093static void service_enter_reload(Service *s) {
2094 int r;
2095
2096 assert(s);
2097
5e94833f
LP		 2098 service_unwatch_control_pid(s);
2099
a16e1123 2100 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 2101 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 2102 if ((r = service_spawn(s,
2103 s->control_command,
2104 true,
2105 false,
2106 !s->permissions_start_only,
2107 !s->root_directory_start_only,
c952c6ec 2108 false,
1e3ad081 2109 false,
e55224ca 2110 &s->control_pid)) < 0)
034c6ed7
LP		 2111 goto fail;
2112
80876c20
LP		 2113 service_set_state(s, SERVICE_RELOAD);
2114 } else
2115 service_enter_running(s, true);
034c6ed7
LP		 2116
2117 return;
2118
2119fail:
4cd1fbcc 2120 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2121 service_enter_stop(s, false);
2122}
2123
34e9ba66 2124static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2125 int r;
2126
2127 assert(s);
2128 assert(s->control_command);
2129 assert(s->control_command->command_next);
2130
2131 if (!success)
2132 s->failure = true;
2133
34e9ba66 2134 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2135
34e9ba66 2136 s->control_command = s->control_command->command_next;
5e94833f
LP		 2137 service_unwatch_control_pid(s);
2138
81a2b7ce
LP		 2139 if ((r = service_spawn(s,
2140 s->control_command,
2141 true,
2142 false,
2143 !s->permissions_start_only,
2144 !s->root_directory_start_only,
5830833f
LP		 2145 s->control_command_id == SERVICE_EXEC_START_PRE ||
2146 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2147 false,
e55224ca 2148 &s->control_pid)) < 0)
034c6ed7
LP		 2149 goto fail;
2150
2151 return;
2152
2153fail:
34e9ba66 2154 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2155
80876c20
LP		 2156 if (s->state == SERVICE_START_PRE)
2157 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2158 else if (s->state == SERVICE_STOP)
2159 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2160 else if (s->state == SERVICE_STOP_POST)
2161 service_enter_dead(s, false, true);
2162 else
2163 service_enter_stop(s, false);
5cb5a6ff
LP		 2164}
2165
34e9ba66
LP		 2166static void service_run_next_main(Service *s, bool success) {
2167 pid_t pid;
2168 int r;
2169
2170 assert(s);
2171 assert(s->control_command);
2172 assert(s->control_command->command_next);
2173
2174 if (!success)
2175 s->failure = true;
2176
2177 assert(s->control_command_id == SERVICE_EXEC_START);
2178 assert(s->type == SERVICE_ONESHOT);
2179
2180 s->control_command = s->control_command->command_next;
2181 service_unwatch_main_pid(s);
2182
2183 if ((r = service_spawn(s,
2184 s->control_command,
2185 false,
2186 true,
2187 true,
2188 true,
2189 true,
2190 s->notify_access != NOTIFY_NONE,
2191 &pid)) < 0)
2192 goto fail;
2193
2194 service_set_main_pid(s, pid);
2195
2196 return;
2197
2198fail:
2199 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2200 service_enter_stop(s, false);
2201}
2202
87f0e418
LP		 2203static int service_start(Unit *u) {
2204 Service *s = SERVICE(u);
5cb5a6ff
LP		 2205
2206 assert(s);
2207
034c6ed7
LP		 2208 /* We cannot fulfill this request right now, try again later
2209 * please! */
2210 if (s->state == SERVICE_STOP ||
2211 s->state == SERVICE_STOP_SIGTERM ||
2212 s->state == SERVICE_STOP_SIGKILL ||
2213 s->state == SERVICE_STOP_POST ||
2214 s->state == SERVICE_FINAL_SIGTERM ||
2215 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2216 return -EAGAIN;
2217
034c6ed7
LP		 2218 /* Already on it! */
2219 if (s->state == SERVICE_START_PRE ||
2220 s->state == SERVICE_START ||
2221 s->state == SERVICE_START_POST)
2222 return 0;
2223
fdf20a31 2224 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2225
1e2e8133
LP		 2226 /* Make sure we don't enter a busy loop of some kind. */
2227 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2228 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2229 return -ECANCELED;
1e2e8133
LP		 2230 }
2231
034c6ed7
LP		 2232 s->failure = false;
2233 s->main_pid_known = false;
47342320 2234 s->forbid_restart = false;
034c6ed7
LP		 2235
2236 service_enter_start_pre(s);
2237 return 0;
5cb5a6ff
LP		 2238}
2239
87f0e418
LP		 2240static int service_stop(Unit *u) {
2241 Service *s = SERVICE(u);
5cb5a6ff
LP		 2242
2243 assert(s);
2244
3f6c78dc
LP		 2245 /* This is a user request, so don't do restarts on this
2246 * shutdown. */
47342320 2247 s->forbid_restart = true;
034c6ed7 2248
e537352b
LP		 2249 /* Already on it */
2250 if (s->state == SERVICE_STOP ||
2251 s->state == SERVICE_STOP_SIGTERM ||
2252 s->state == SERVICE_STOP_SIGKILL ||
2253 s->state == SERVICE_STOP_POST ||
2254 s->state == SERVICE_FINAL_SIGTERM ||
2255 s->state == SERVICE_FINAL_SIGKILL)
2256 return 0;
2257
3f6c78dc 2258 /* Don't allow a restart */
034c6ed7
LP		 2259 if (s->state == SERVICE_AUTO_RESTART) {
2260 service_set_state(s, SERVICE_DEAD);
2261 return 0;
2262 }
2263
3f6c78dc
LP		 2264 /* If there's already something running we go directly into
2265 * kill mode. */
2266 if (s->state == SERVICE_START_PRE ||
2267 s->state == SERVICE_START ||
2268 s->state == SERVICE_START_POST ||
2269 s->state == SERVICE_RELOAD) {
2270 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2271 return 0;
2272 }
5cb5a6ff 2273
3f6c78dc
LP		 2274 assert(s->state == SERVICE_RUNNING ||
2275 s->state == SERVICE_EXITED);
3a762661 2276
034c6ed7 2277 service_enter_stop(s, true);
5cb5a6ff
LP		 2278 return 0;
2279}
2280
87f0e418
LP		 2281static int service_reload(Unit *u) {
2282 Service *s = SERVICE(u);
034c6ed7
LP		 2283
2284 assert(s);
2285
80876c20 2286 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2287
2288 service_enter_reload(s);
5cb5a6ff
LP		 2289 return 0;
2290}
2291
87f0e418
LP		 2292static bool service_can_reload(Unit *u) {
2293 Service *s = SERVICE(u);
034c6ed7
LP		 2294
2295 assert(s);
2296
2297 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2298}
2299
a16e1123
LP		 2300static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2301 Service *s = SERVICE(u);
2302
2303 assert(u);
2304 assert(f);
2305 assert(fds);
2306
2307 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2308 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2309
2310 if (s->control_pid > 0)
5925dd3c 2311 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2312
5925dd3c
LP		 2313 if (s->main_pid_known && s->main_pid > 0)
2314 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2315
2316 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2317
3a2776bc
LP		 2318 if (s->status_text)
2319 unit_serialize_item(u, f, "status-text", s->status_text);
2320
a16e1123
LP		 2321 /* There's a minor uncleanliness here: if there are multiple
2322 * commands attached here, we will start from the first one
2323 * again */
2324 if (s->control_command_id >= 0)
825636e5 2325 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2326
2327 if (s->socket_fd >= 0) {
2328 int copy;
2329
2330 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2331 return copy;
2332
2333 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2334 }
2335
ecdbca40
LP		 2336 if (s->main_exec_status.pid > 0) {
2337 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2338 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2339 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2340
799fd0fd 2341 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2342 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2343 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2344 }
2345 }
2346
a16e1123
LP		 2347 return 0;
2348}
2349
2350static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2351 Service *s = SERVICE(u);
a16e1123
LP		 2352
2353 assert(u);
2354 assert(key);
2355 assert(value);
2356 assert(fds);
2357
2358 if (streq(key, "state")) {
2359 ServiceState state;
2360
2361 if ((state = service_state_from_string(value)) < 0)
2362 log_debug("Failed to parse state value %s", value);
2363 else
2364 s->deserialized_state = state;
2365 } else if (streq(key, "failure")) {
2366 int b;
2367
2368 if ((b = parse_boolean(value)) < 0)
2369 log_debug("Failed to parse failure value %s", value);
2370 else
2371 s->failure = b || s->failure;
2372 } else if (streq(key, "control-pid")) {
5925dd3c 2373 pid_t pid;
a16e1123 2374
e364ad06 2375 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2376 log_debug("Failed to parse control-pid value %s", value);
2377 else
e55224ca 2378 s->control_pid = pid;
a16e1123 2379 } else if (streq(key, "main-pid")) {
5925dd3c 2380 pid_t pid;
a16e1123 2381
e364ad06 2382 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2383 log_debug("Failed to parse main-pid value %s", value);
2384 else
5925dd3c 2385 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2386 } else if (streq(key, "main-pid-known")) {
2387 int b;
2388
2389 if ((b = parse_boolean(value)) < 0)
2390 log_debug("Failed to parse main-pid-known value %s", value);
2391 else
2392 s->main_pid_known = b;
3a2776bc
LP		 2393 } else if (streq(key, "status-text")) {
2394 char *t;
2395
2396 if ((t = strdup(value))) {
2397 free(s->status_text);
2398 s->status_text = t;
2399 }
2400
a16e1123
LP		 2401 } else if (streq(key, "control-command")) {
2402 ServiceExecCommand id;
2403
2404 if ((id = service_exec_command_from_string(value)) < 0)
2405 log_debug("Failed to parse exec-command value %s", value);
2406 else {
2407 s->control_command_id = id;
2408 s->control_command = s->exec_command[id];
2409 }
2410 } else if (streq(key, "socket-fd")) {
2411 int fd;
2412
2413 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2414 log_debug("Failed to parse socket-fd value %s", value);
2415 else {
2416
2417 if (s->socket_fd >= 0)
2418 close_nointr_nofail(s->socket_fd);
2419 s->socket_fd = fdset_remove(fds, fd);
2420 }
ecdbca40
LP		 2421 } else if (streq(key, "main-exec-status-pid")) {
2422 pid_t pid;
2423
e364ad06 2424 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2425 log_debug("Failed to parse main-exec-status-pid value %s", value);
2426 else
2427 s->main_exec_status.pid = pid;
2428 } else if (streq(key, "main-exec-status-code")) {
2429 int i;
2430
e364ad06 2431 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2432 log_debug("Failed to parse main-exec-status-code value %s", value);
2433 else
2434 s->main_exec_status.code = i;
2435 } else if (streq(key, "main-exec-status-status")) {
2436 int i;
2437
e364ad06 2438 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2439 log_debug("Failed to parse main-exec-status-status value %s", value);
2440 else
2441 s->main_exec_status.status = i;
799fd0fd
LP		 2442 } else if (streq(key, "main-exec-status-start"))
2443 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2444 else if (streq(key, "main-exec-status-exit"))
2445 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2446 else
a16e1123
LP		 2447 log_debug("Unknown serialization key '%s'", key);
2448
2449 return 0;
2450}
2451
87f0e418
LP		 2452static UnitActiveState service_active_state(Unit *u) {
2453 assert(u);
5cb5a6ff 2454
acbb0225 2455 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2456}
2457
10a94420
LP		 2458static const char *service_sub_state_to_string(Unit *u) {
2459 assert(u);
2460
2461 return service_state_to_string(SERVICE(u)->state);
2462}
2463
07459bb6 2464#ifdef HAVE_SYSV_COMPAT
701cc384
LP		 2465static bool service_check_gc(Unit *u) {
2466 Service *s = SERVICE(u);
2467
2468 assert(s);
2469
2470 return !!s->sysv_path;
2471}
07459bb6 2472#endif
701cc384
LP		 2473
2474static bool service_check_snapshot(Unit *u) {
2475 Service *s = SERVICE(u);
2476
2477 assert(s);
2478
2479 return !s->got_socket_fd;
2480}
2481
87f0e418
LP		 2482static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2483 Service *s = SERVICE(u);
034c6ed7 2484 bool success;
5cb5a6ff
LP		 2485
2486 assert(s);
034c6ed7
LP		 2487 assert(pid >= 0);
2488
f21781d5 2489 if (!s->meta.fragment_path)
d06dacd0
LP		 2490 success = is_clean_exit_lsb(code, status);
2491 else
2492 success = is_clean_exit(code, status);
034c6ed7
LP		 2493
2494 if (s->main_pid == pid) {
2495
034c6ed7 2496 s->main_pid = 0;
169c1bda 2497 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
034c6ed7 2498
34e9ba66
LP		 2499 if (s->type != SERVICE_FORKING && s->control_command) {
2500 s->control_command->exec_status = s->main_exec_status;
b708e7ce 2501
34e9ba66 2502 if (s->control_command->ignore)
b708e7ce 2503 success = true;
034c6ed7
LP		 2504 }
2505
92abbefb
LP		 2506 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2507 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2508 s->failure = s->failure || !success;
034c6ed7 2509
34e9ba66
LP		 2510 if (s->control_command &&
2511 s->control_command->command_next &&
2512 success) {
034c6ed7 2513
34e9ba66
LP		 2514 /* There is another command to *
2515 * execute, so let's do that. */
034c6ed7 2516
34e9ba66
LP		 2517 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2518 service_run_next_main(s, success);
034c6ed7 2519
34e9ba66
LP		 2520 } else {
2521
2522 /* The service exited, so the service is officially
2523 * gone. */
2524
2525 s->control_command = NULL;
2526 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2527
2528 switch (s->state) {
2529
2530 case SERVICE_START_POST:
2531 case SERVICE_RELOAD:
2532 case SERVICE_STOP:
2533 /* Need to wait until the operation is
2534 * done */
c4653a4d 2535 break;
7d55e835 2536
34e9ba66
LP		 2537 case SERVICE_START:
2538 if (s->type == SERVICE_ONESHOT) {
2539 /* This was our main goal, so let's go on */
2540 if (success)
2541 service_enter_start_post(s);
2542 else
2543 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2544 break;
2545 } else {
2546 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2547
34e9ba66
LP		 2548 /* Fall through */
2549 }
034c6ed7 2550
34e9ba66
LP		 2551 case SERVICE_RUNNING:
2552 service_enter_running(s, success);
2553 break;
034c6ed7 2554
34e9ba66
LP		 2555 case SERVICE_STOP_SIGTERM:
2556 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2557
34e9ba66
LP		 2558 if (!control_pid_good(s))
2559 service_enter_stop_post(s, success);
5cb5a6ff 2560
34e9ba66
LP		 2561 /* If there is still a control process, wait for that first */
2562 break;
2563
2564 default:
2565 assert_not_reached("Uh, main process died at wrong time.");
2566 }
034c6ed7 2567 }
5cb5a6ff 2568
034c6ed7 2569 } else if (s->control_pid == pid) {
034c6ed7 2570
34e9ba66
LP		 2571 s->control_pid = 0;
2572
b708e7ce 2573 if (s->control_command) {
169c1bda 2574 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 2575
b708e7ce
LP		 2576 if (s->control_command->ignore)
2577 success = true;
2578 }
2579
34e9ba66 2580 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2581 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2582 s->failure = s->failure || !success;
034c6ed7 2583
34e9ba66
LP		 2584 if (s->control_command &&
2585 s->control_command->command_next &&
2586 success) {
034c6ed7
LP		 2587
2588 /* There is another command to *
2589 * execute, so let's do that. */
2590
34e9ba66
LP		 2591 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2592 service_run_next_control(s, success);
034c6ed7 2593
80876c20 2594 } else {
034c6ed7
LP		 2595 /* No further commands for this step, so let's
2596 * figure out what to do next */
2597
a16e1123
LP		 2598 s->control_command = NULL;
2599 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2600
9e2f7c11 2601 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2602
034c6ed7
LP		 2603 switch (s->state) {
2604
2605 case SERVICE_START_PRE:
2606 if (success)
2607 service_enter_start(s);
2608 else
80876c20 2609 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2610 break;
2611
2612 case SERVICE_START:
2613 assert(s->type == SERVICE_FORKING);
2614
2615 /* Let's try to load the pid
2616 * file here if we can. We
2617 * ignore the return value,
2618 * since the PID file might
2619 * actually be created by a
2620 * START_POST script */
2621
2622 if (success) {
4fbf50b3
LP		 2623 service_load_pid_file(s);
2624 service_search_main_pid(s);
034c6ed7
LP		 2625
2626 service_enter_start_post(s);
2627 } else
80876c20 2628 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2629
2630 break;
2631
2632 case SERVICE_START_POST:
2633 if (success && s->pid_file && !s->main_pid_known) {
2634 int r;
2635
2636 /* Hmm, let's see if we can
2637 * load the pid now after the
2638 * start-post scripts got
2639 * executed. */
2640
2641 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2642 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2643 }
2644
2645 /* Fall through */
2646
2647 case SERVICE_RELOAD:
80876c20
LP		 2648 if (success)
2649 service_enter_running(s, true);
2650 else
034c6ed7
LP		 2651 service_enter_stop(s, false);
2652
2653 break;
2654
2655 case SERVICE_STOP:
80876c20 2656 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2657 break;
2658
2659 case SERVICE_STOP_SIGTERM:
2660 case SERVICE_STOP_SIGKILL:
2661 if (main_pid_good(s) <= 0)
2662 service_enter_stop_post(s, success);
2663
2664 /* If there is still a service
2665 * process around, wait until
2666 * that one quit, too */
2667 break;
2668
2669 case SERVICE_STOP_POST:
2670 case SERVICE_FINAL_SIGTERM:
2671 case SERVICE_FINAL_SIGKILL:
2672 service_enter_dead(s, success, true);
2673 break;
2674
2675 default:
2676 assert_not_reached("Uh, control process died at wrong time.");
2677 }
2678 }
8c47c732 2679 }
c4e2ceae
LP		 2680
2681 /* Notify clients about changed exit status */
2682 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2683}
2684
acbb0225 2685static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2686 Service *s = SERVICE(u);
034c6ed7
LP		 2687
2688 assert(s);
2689 assert(elapsed == 1);
2690
acbb0225 2691 assert(w == &s->timer_watch);
034c6ed7
LP		 2692
2693 switch (s->state) {
2694
2695 case SERVICE_START_PRE:
2696 case SERVICE_START:
9e2f7c11 2697 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2698 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2699 break;
2700
034c6ed7
LP		 2701 case SERVICE_START_POST:
2702 case SERVICE_RELOAD:
9e2f7c11 2703 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2704 service_enter_stop(s, false);
2705 break;
2706
2707 case SERVICE_STOP:
9e2f7c11 2708 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2709 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2710 break;
2711
2712 case SERVICE_STOP_SIGTERM:
9e2f7c11 2713 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2714 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2715 break;
2716
2717 case SERVICE_STOP_SIGKILL:
2718 /* Uh, wie sent a SIGKILL and it is still not gone?
2719 * Must be something we cannot kill, so let's just be
2720 * weirded out and continue */
2721
9e2f7c11 2722 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2723 service_enter_stop_post(s, false);
2724 break;
2725
2726 case SERVICE_STOP_POST:
9e2f7c11 2727 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2728 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2729 break;
2730
2731 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2732 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2733 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2734 break;
2735
2736 case SERVICE_FINAL_SIGKILL:
fdf20a31 2737 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2738 service_enter_dead(s, false, true);
2739 break;
2740
2741 case SERVICE_AUTO_RESTART:
54165a39 2742 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2743 service_enter_restart(s);
2744 break;
2745
2746 default:
2747 assert_not_reached("Timeout at wrong time.");
2748 }
5cb5a6ff
LP		 2749}
2750
8e274523
LP		 2751static void service_cgroup_notify_event(Unit *u) {
2752 Service *s = SERVICE(u);
2753
2754 assert(u);
2755
9e2f7c11 2756 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2757
2758 switch (s->state) {
2759
2760 /* Waiting for SIGCHLD is usually more interesting,
2761 * because it includes return codes/signals. Which is
2762 * why we ignore the cgroup events for most cases,
2763 * except when we don't know pid which to expect the
2764 * SIGCHLD for. */
2765
2766 case SERVICE_RUNNING:
80876c20 2767 service_enter_running(s, true);
8e274523
LP		 2768 break;
2769
28708d8a
LP		 2770 case SERVICE_STOP_SIGTERM:
2771 case SERVICE_STOP_SIGKILL:
2772 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2773 service_enter_stop_post(s, true);
2774
2775 break;
2776
7f97f0fe
LP		 2777 case SERVICE_FINAL_SIGTERM:
2778 case SERVICE_FINAL_SIGKILL:
2779 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2780 service_enter_dead(s, true, true);
2781
2782 break;
2783
8e274523
LP		 2784 default:
2785 ;
2786 }
2787}
2788
c952c6ec 2789static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2790 Service *s = SERVICE(u);
2791 const char *e;
2792
2793 assert(u);
2794
c952c6ec
LP		 2795 if (s->notify_access == NOTIFY_NONE) {
2796 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2797 u->meta.id, (unsigned long) pid);
2798 return;
2799 }
2800
2801 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2802 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2803 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2804 return;
2805 }
2806
8c47c732
LP		 2807 log_debug("%s: Got message", u->meta.id);
2808
2809 /* Interpret MAINPID= */
2810 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2811 (s->state == SERVICE_START ||
2812 s->state == SERVICE_START_POST ||
2813 s->state == SERVICE_RUNNING ||
2814 s->state == SERVICE_RELOAD)) {
8c47c732 2815
5925dd3c 2816 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2817 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2818 else {
2819 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2820 service_set_main_pid(s, pid);
8c47c732
LP		 2821 }
2822 }
2823
2824 /* Interpret READY= */
2825 if (s->type == SERVICE_NOTIFY &&
2826 s->state == SERVICE_START &&
2827 strv_find(tags, "READY=1")) {
2828 log_debug("%s: got READY=1", u->meta.id);
2829
2830 service_enter_start_post(s);
2831 }
2832
2833 /* Interpret STATUS= */
2834 if ((e = strv_find_prefix(tags, "STATUS="))) {
2835 char *t;
2836
3a2776bc
LP		 2837 if (e[7]) {
2838 if (!(t = strdup(e+7))) {
2839 log_error("Failed to allocate string.");
2840 return;
2841 }
2842
2843 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2844
3a2776bc
LP		 2845 free(s->status_text);
2846 s->status_text = t;
2847 } else {
2848 free(s->status_text);
2849 s->status_text = NULL;
2850 }
8c47c732 2851
8c47c732 2852 }
c4e2ceae
LP		 2853
2854 /* Notify clients about changed status or main pid */
2855 unit_add_to_dbus_queue(u);
8c47c732
LP		 2856}
2857
07459bb6 2858#ifdef HAVE_SYSV_COMPAT
2c4104f0 2859static int service_enumerate(Manager *m) {
2c4104f0
LP		 2860 char **p;
2861 unsigned i;
2862 DIR *d = NULL;
2863 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2864 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2865 Unit *service;
2866 Iterator j;
2c4104f0 2867 int r;
980900c1
TG		 2868#ifdef TARGET_ARCH
2869 Unit *previous = NULL;
2870 char *arch_daemons = NULL;
2871 char *arch_daemons_stripped = NULL;
2872 char **arch_daemons_split = NULL;
2873#endif
2c4104f0
LP		 2874
2875 assert(m);
2876
980900c1
TG		 2877#ifdef TARGET_ARCH
2878 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2879 "DAEMONS", &arch_daemons,
2880 NULL)) < 0) {
2881
2882 if (r != -ENOENT)
2883 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2884
2885 } else if (arch_daemons) {
2886 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2887 arch_daemons_stripped = arch_daemons;
2888 else
2889 arch_daemons_stripped++; /* strip start paren */
2890
2891 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2892
2893 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2894 r = -ENOMEM;
2895 goto finish;
2896 }
2897
2898 STRV_FOREACH(p, arch_daemons_split) {
2899
2900 free(name);
409db002 2901 name = NULL;
980900c1
TG		 2902
2903 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2904 continue;
2905
2906 if (!(name = sysv_translate_name(*p))) {
2907 r = -ENOMEM;
2908 goto finish;
2909 }
2910
2911 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2912 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2913 continue;
2914 }
2915
2916 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2917 goto finish;
2918
2919 if (previous)
2920 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2921 goto finish;
2922
2923 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2924 previous = service;
2925 }
2926 }
2927#endif
2928
c68364b7
LP		 2929 zero(runlevel_services);
2930
84e3543e 2931 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2932 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2933 struct dirent *de;
2934
2935 free(path);
2936 path = NULL;
09cd1ab1 2937 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2938 r = -ENOMEM;
2939 goto finish;
2940 }
2941
2942 if (d)
2943 closedir(d);
2944
2945 if (!(d = opendir(path))) {
2946 if (errno != ENOENT)
2947 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2948
2949 continue;
2950 }
2951
2952 while ((de = readdir(d))) {
db06e3b6 2953 int a, b;
2c4104f0
LP		 2954
2955 if (ignore_file(de->d_name))
2956 continue;
2957
2958 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2959 continue;
2960
2961 if (strlen(de->d_name) < 4)
2962 continue;
2963
db06e3b6
LP		 2964 a = undecchar(de->d_name[1]);
2965 b = undecchar(de->d_name[2]);
2966
2967 if (a < 0 || b < 0)
2968 continue;
2969
2c4104f0
LP		 2970 free(fpath);
2971 fpath = NULL;
09cd1ab1 2972 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2973 r = -ENOMEM;
2974 goto finish;
2975 }
2976
2977 if (access(fpath, X_OK) < 0) {
2978
2979 if (errno != ENOENT)
2980 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2981
2982 continue;
2983 }
2984
2985 free(name);
b7ccee3c 2986 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2987 r = -ENOMEM;
2988 goto finish;
2989 }
2990
398ef8ba 2991 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2992 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2993 continue;
2994 }
2c4104f0 2995
c68364b7
LP		 2996 if (de->d_name[0] == 'S') {
2997
f73d93a4
LP		 2998 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2999 SERVICE(service)->sysv_start_priority =
3000 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 3001
c68364b7 3002 SERVICE(service)->sysv_enabled = true;
f73d93a4 3003 }
db06e3b6 3004
c68364b7
LP		 3005 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3006 goto finish;
2c4104f0 3007
c68364b7 3008 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3009 goto finish;
23a177ef 3010
fc5df99e
LP		 3011 } else if (de->d_name[0] == 'K' &&
3012 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3013 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3014
c68364b7
LP		 3015 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3016 goto finish;
3017
3018 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3019 goto finish;
3020 }
3021 }
3022 }
3023
c68364b7
LP		 3024 /* Now we loaded all stubs and are aware of the lowest
3025 start-up priority for all services, not let's actually load
3026 the services, this will also tell us which services are
3027 actually native now */
3028 manager_dispatch_load_queue(m);
3029
3030 /* If this is a native service, rely on native ways to pull in
3031 * a service, don't pull it in via sysv rcN.d links. */
3032 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3033 SET_FOREACH(service, runlevel_services[i], j) {
3034 service = unit_follow_merge(service);
3035
3036 if (service->meta.fragment_path)
3037 continue;
3038
3039 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3040 goto finish;
3041 }
3042
3043 /* We honour K links only for halt/reboot. For the normal
3044 * runlevels we assume the stop jobs will be implicitly added
3045 * by the core logic. Also, we don't really distuingish here
3046 * between the runlevels 0 and 6 and just add them to the
3047 * special shutdown target. On SUSE the boot.d/ runlevel is
3048 * also used for shutdown, so we add links for that too to the
3049 * shutdown target.*/
3050 SET_FOREACH(service, shutdown_services, j) {
3051 service = unit_follow_merge(service);
3052
3053 if (service->meta.fragment_path)
3054 continue;
3055
ead8e478 3056 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3057 goto finish;
3058 }
3059
2c4104f0
LP		 3060 r = 0;
3061
3062finish:
3063 free(path);
3064 free(fpath);
3065 free(name);
980900c1
TG		 3066#ifdef TARGET_ARCH
3067 free(arch_daemons);
3068 free(arch_daemons_split);
3069#endif
fbe9f3a9 3070
c68364b7
LP		 3071 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3072 set_free(runlevel_services[i]);
3073 set_free(shutdown_services);
3074
fbe9f3a9
LP		 3075 if (d)
3076 closedir(d);
2c4104f0
LP		 3077
3078 return r;
3079}
07459bb6 3080#endif
2c4104f0 3081
05e343b7
LP		 3082static void service_bus_name_owner_change(
3083 Unit *u,
3084 const char *name,
3085 const char *old_owner,
3086 const char *new_owner) {
3087
3088 Service *s = SERVICE(u);
3089
3090 assert(s);
3091 assert(name);
3092
3093 assert(streq(s->bus_name, name));
3094 assert(old_owner || new_owner);
3095
3096 if (old_owner && new_owner)
3097 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3098 else if (old_owner)
3099 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3100 else
3101 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3102
3103 s->bus_name_good = !!new_owner;
3104
3105 if (s->type == SERVICE_DBUS) {
3106
3107 /* service_enter_running() will figure out what to
3108 * do */
3109 if (s->state == SERVICE_RUNNING)
3110 service_enter_running(s, true);
3111 else if (s->state == SERVICE_START && new_owner)
3112 service_enter_start_post(s);
3113
3114 } else if (new_owner &&
3115 s->main_pid <= 0 &&
3116 (s->state == SERVICE_START ||
3117 s->state == SERVICE_START_POST ||
3118 s->state == SERVICE_RUNNING ||
3119 s->state == SERVICE_RELOAD)) {
3120
3121 /* Try to acquire PID from bus service */
3122 log_debug("Trying to acquire PID from D-Bus name...");
3123
3124 bus_query_pid(u->meta.manager, name);
3125 }
3126}
3127
3128static void service_bus_query_pid_done(
3129 Unit *u,
3130 const char *name,
3131 pid_t pid) {
3132
3133 Service *s = SERVICE(u);
3134
3135 assert(s);
3136 assert(name);
3137
3138 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3139
3140 if (s->main_pid <= 0 &&
3141 (s->state == SERVICE_START ||
3142 s->state == SERVICE_START_POST ||
3143 s->state == SERVICE_RUNNING ||
3144 s->state == SERVICE_RELOAD))
5925dd3c 3145 service_set_main_pid(s, pid);
05e343b7
LP		 3146}
3147
6cf6bbc2 3148int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3149 assert(s);
3150 assert(fd >= 0);
3151
3152 /* This is called by the socket code when instantiating a new
3153 * service for a stream socket and the socket needs to be
3154 * configured. */
3155
4cd1fbcc 3156 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3157 return -EINVAL;
3158
3159 if (s->socket_fd >= 0)
3160 return -EBUSY;
3161
3162 if (s->state != SERVICE_DEAD)
3163 return -EAGAIN;
3164
3165 s->socket_fd = fd;
701cc384 3166 s->got_socket_fd = true;
f976f3f6 3167 s->accept_socket = sock;
6cf6bbc2 3168
4f2d528d
LP		 3169 return 0;
3170}
3171
fdf20a31 3172static void service_reset_failed(Unit *u) {
5632e374
LP		 3173 Service *s = SERVICE(u);
3174
3175 assert(s);
3176
fdf20a31 3177 if (s->state == SERVICE_FAILED)
5632e374
LP		 3178 service_set_state(s, SERVICE_DEAD);
3179
3180 s->failure = false;
3181}
3182
8a0867d6
LP		 3183static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3184 Service *s = SERVICE(u);
3185 int r = 0;
3186 Set *pid_set = NULL;
3187
3188 assert(s);
3189
3190 if (s->main_pid <= 0 && who == KILL_MAIN) {
3191 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3192 return -EINVAL;
3193 }
3194
3195 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3196 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3197 return -ENOENT;
3198 }
3199
3200 if (s->control_pid > 0)
3201 if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
3202 r = -errno;
3203
3204 if (s->main_pid > 0)
3205 if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0)
3206 r = -errno;
3207
3208 if (mode == KILL_CONTROL_GROUP) {
3209 int q;
3210
3211 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3212 return -ENOMEM;
3213
3214 /* Exclude the control/main pid from being killed via the cgroup */
3215 if (s->control_pid > 0)
3216 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3217 r = q;
3218 goto finish;
3219 }
3220
3221 if (s->main_pid > 0)
3222 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3223 r = q;
3224 goto finish;
3225 }
3226
3227 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
3228 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3229 r = q;
3230 }
3231
3232finish:
3233 if (pid_set)
3234 set_free(pid_set);
3235
3236 return r;
3237}
3238
94f04347
LP		 3239static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3240 [SERVICE_DEAD] = "dead",
3241 [SERVICE_START_PRE] = "start-pre",
3242 [SERVICE_START] = "start",
3243 [SERVICE_START_POST] = "start-post",
3244 [SERVICE_RUNNING] = "running",
80876c20 3245 [SERVICE_EXITED] = "exited",
94f04347
LP		 3246 [SERVICE_RELOAD] = "reload",
3247 [SERVICE_STOP] = "stop",
3248 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3249 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3250 [SERVICE_STOP_POST] = "stop-post",
3251 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3252 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3253 [SERVICE_FAILED] = "failed",
94f04347
LP		 3254 [SERVICE_AUTO_RESTART] = "auto-restart",
3255};
3256
3257DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3258
3259static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3260 [SERVICE_RESTART_NO] = "no",
3261 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3262 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3263 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3264 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3265};
3266
3267DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3268
3269static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3270 [SERVICE_SIMPLE] = "simple",
0d624a78 3271 [SERVICE_FORKING] = "forking",
34e9ba66 3272 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3273 [SERVICE_DBUS] = "dbus",
3274 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3275};
3276
3277DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3278
e537352b 3279static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3280 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3281 [SERVICE_EXEC_START] = "ExecStart",
3282 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3283 [SERVICE_EXEC_RELOAD] = "ExecReload",
3284 [SERVICE_EXEC_STOP] = "ExecStop",
3285 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3286};
3287
3288DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3289
c952c6ec
LP		 3290static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3291 [NOTIFY_NONE] = "none",
3292 [NOTIFY_MAIN] = "main",
3293 [NOTIFY_ALL] = "all"
3294};
3295
3296DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3297
87f0e418 3298const UnitVTable service_vtable = {
5cb5a6ff 3299 .suffix = ".service",
9e58ff9c 3300 .show_status = true,
5cb5a6ff 3301
034c6ed7
LP		 3302 .init = service_init,
3303 .done = service_done,
a16e1123
LP		 3304 .load = service_load,
3305
3306 .coldplug = service_coldplug,
034c6ed7 3307
5cb5a6ff
LP		 3308 .dump = service_dump,
3309
3310 .start = service_start,
3311 .stop = service_stop,
3312 .reload = service_reload,
3313
034c6ed7
LP		 3314 .can_reload = service_can_reload,
3315
8a0867d6
LP		 3316 .kill = service_kill,
3317
a16e1123
LP		 3318 .serialize = service_serialize,
3319 .deserialize_item = service_deserialize_item,
3320
5cb5a6ff 3321 .active_state = service_active_state,
10a94420 3322 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3323
07459bb6 3324#ifdef HAVE_SYSV_COMPAT
701cc384 3325 .check_gc = service_check_gc,
07459bb6 3326#endif
701cc384
LP		 3327 .check_snapshot = service_check_snapshot,
3328
034c6ed7
LP		 3329 .sigchld_event = service_sigchld_event,
3330 .timer_event = service_timer_event,
2c4104f0 3331
fdf20a31 3332 .reset_failed = service_reset_failed,
5632e374 3333
8e274523 3334 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3335 .notify_message = service_notify_message,
8e274523 3336
05e343b7
LP		 3337 .bus_name_owner_change = service_bus_name_owner_change,
3338 .bus_query_pid_done = service_bus_query_pid_done,
3339
c4e2ceae 3340 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3341 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3342 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3343
07459bb6 3344#ifdef HAVE_SYSV_COMPAT
2c4104f0 3345 .enumerate = service_enumerate
07459bb6 3346#endif
5cb5a6ff 3347};
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