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build-sys: require udev 160 to fix notify socket abstract namespace sockaddr length
[thirdparty/systemd.git] / src / service.c
CommitLineData
5cb5a6ff
LP		 1/*-*- Mode: C; c-basic-offset: 8 -*-*/
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
09cd1ab1
LP		 41typedef enum RunlevelType {
42 RUNLEVEL_UP,
43 RUNLEVEL_DOWN,
fc5df99e 44 RUNLEVEL_SYSINIT
09cd1ab1
LP		 45} RunlevelType;
46
47static const struct {
48 const char *path;
49 const char *target;
50 const RunlevelType type;
51} rcnd_table[] = {
fbe9f3a9 52 /* Standard SysV runlevels */
514f4ef5
LP		 53 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
54 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 55 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
56 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
57 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
58 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
514f4ef5 59 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN },
fbe9f3a9 60
cfe243e3 61 /* SUSE style boot.d */
fc5df99e 62 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
fbe9f3a9
LP		 63
64 /* Debian style rcS.d */
fc5df99e 65 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
23a177ef
LP		 66};
67
09cd1ab1 68#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 69/* #define RUNLEVELS_DOWN "06" */
70/* #define RUNLEVELS_BOOT "bBsS" */
09cd1ab1 71
acbb0225 72static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 73 [SERVICE_DEAD] = UNIT_INACTIVE,
74 [SERVICE_START_PRE] = UNIT_ACTIVATING,
75 [SERVICE_START] = UNIT_ACTIVATING,
76 [SERVICE_START_POST] = UNIT_ACTIVATING,
77 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 78 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 79 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 80 [SERVICE_STOP] = UNIT_DEACTIVATING,
81 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
82 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
83 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
84 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
85 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
032ff4af 86 [SERVICE_MAINTENANCE] = UNIT_MAINTENANCE,
6124958c 87 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 88};
5cb5a6ff 89
a16e1123
LP		 90static void service_init(Unit *u) {
91 Service *s = SERVICE(u);
92
93 assert(u);
94 assert(u->meta.load_state == UNIT_STUB);
95
96 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
97 s->restart_usec = DEFAULT_RESTART_USEC;
98 s->timer_watch.type = WATCH_INVALID;
99 s->sysv_start_priority = -1;
100 s->socket_fd = -1;
101
102 exec_context_init(&s->exec_context);
103
104 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
105
106 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
107}
108
5e94833f
LP		 109static void service_unwatch_control_pid(Service *s) {
110 assert(s);
111
112 if (s->control_pid <= 0)
113 return;
114
115 unit_unwatch_pid(UNIT(s), s->control_pid);
116 s->control_pid = 0;
117}
118
119static void service_unwatch_main_pid(Service *s) {
120 assert(s);
121
122 if (s->main_pid <= 0)
123 return;
124
125 unit_unwatch_pid(UNIT(s), s->main_pid);
126 s->main_pid = 0;
127}
128
5925dd3c 129static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 130 pid_t ppid;
131
5925dd3c
LP		 132 assert(s);
133
134 if (pid <= 1)
135 return -EINVAL;
136
137 if (pid == getpid())
138 return -EINVAL;
139
e55224ca
LP		 140 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
141 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
142 s->meta.id, (unsigned long) pid);
143
5925dd3c
LP		 144 s->main_pid = pid;
145 s->main_pid_known = true;
146
b58b4116
LP		 147 exec_status_start(&s->main_exec_status, pid);
148
5925dd3c
LP		 149 return 0;
150}
151
4f2d528d
LP		 152static void service_close_socket_fd(Service *s) {
153 assert(s);
154
155 if (s->socket_fd < 0)
156 return;
157
158 close_nointr_nofail(s->socket_fd);
159 s->socket_fd = -1;
160}
161
6cf6bbc2
LP		 162static void service_connection_unref(Service *s) {
163 assert(s);
164
165 if (!s->socket)
166 return;
167
168 socket_connection_unref(s->socket);
169 s->socket = NULL;
170}
171
87f0e418
LP		 172static void service_done(Unit *u) {
173 Service *s = SERVICE(u);
44d8db9e
LP		 174
175 assert(s);
176
177 free(s->pid_file);
178 s->pid_file = NULL;
179
2c4104f0
LP		 180 free(s->sysv_path);
181 s->sysv_path = NULL;
182
8309400a
LP		 183 free(s->sysv_runlevels);
184 s->sysv_runlevels = NULL;
185
8c47c732
LP		 186 free(s->status_text);
187 s->status_text = NULL;
188
44d8db9e 189 exec_context_done(&s->exec_context);
e537352b 190 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 191 s->control_command = NULL;
192
193 /* This will leak a process, but at least no memory or any of
194 * our resources */
5e94833f
LP		 195 service_unwatch_main_pid(s);
196 service_unwatch_control_pid(s);
44d8db9e 197
05e343b7
LP		 198 if (s->bus_name) {
199 unit_unwatch_bus_name(UNIT(u), s->bus_name);
200 free(s->bus_name);
201 s->bus_name = NULL;
202 }
203
4f2d528d 204 service_close_socket_fd(s);
6cf6bbc2 205 service_connection_unref(s);
4f2d528d 206
acbb0225 207 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 208}
209
b7ccee3c
LP		 210static char *sysv_translate_name(const char *name) {
211 char *r;
212
213 if (!(r = new(char, strlen(name) + sizeof(".service"))))
214 return NULL;
215
216 if (startswith(name, "boot."))
217 /* Drop SuSE-style boot. prefix */
218 strcpy(stpcpy(r, name + 5), ".service");
219 else if (endswith(name, ".sh"))
220 /* Drop Debian-style .sh suffix */
221 strcpy(stpcpy(r, name) - 3, ".service");
222 else
223 /* Normal init scripts */
224 strcpy(stpcpy(r, name), ".service");
225
226 return r;
227}
228
229static int sysv_translate_facility(const char *name, char **_r) {
2c4104f0
LP		 230
231 static const char * const table[] = {
6464aa08 232 /* LSB defined facilities */
2c4104f0
LP		 233 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
234 "$network", SPECIAL_NETWORK_TARGET,
235 "$named", SPECIAL_NSS_LOOKUP_TARGET,
236 "$portmap", SPECIAL_RPCBIND_TARGET,
237 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
238 "$syslog", SPECIAL_SYSLOG_TARGET,
6464aa08
LP		 239 "$time", SPECIAL_RTC_SET_TARGET,
240
241 /* Debian extensions */
242 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
243 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
1e287fe3 244 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
2c4104f0
LP		 245 };
246
247 unsigned i;
248 char *r;
249
250 for (i = 0; i < ELEMENTSOF(table); i += 2)
251 if (streq(table[i], name)) {
252 if (!(r = strdup(table[i+1])))
253 return -ENOMEM;
254
255 goto finish;
256 }
257
258 if (*name == '$')
259 return 0;
260
b7ccee3c 261 if (!(r = sysv_translate_name(name)))
2c4104f0
LP		 262 return -ENOMEM;
263
264finish:
265
266 if (_r)
267 *_r = r;
268
269 return 1;
270}
271
56d748b4 272static int sysv_fix_order(Service *s) {
2c4104f0
LP		 273 Meta *other;
274 int r;
275
276 assert(s);
277
278 if (s->sysv_start_priority < 0)
279 return 0;
280
23a177ef
LP		 281 /* For each pair of services where at least one lacks a LSB
282 * header, we use the start priority value to order things. */
2c4104f0 283
4cd1fbcc 284 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 285 Service *t;
286 UnitDependency d;
287
288 t = (Service*) other;
289
290 if (s == t)
291 continue;
292
293 if (t->sysv_start_priority < 0)
294 continue;
295
51a1a79d
LP		 296 /* If both units have modern headers we don't care
297 * about the priorities */
298 if ((!s->sysv_path || s->sysv_has_lsb) &&
299 (!t->sysv_path || t->sysv_has_lsb))
23a177ef
LP		 300 continue;
301
2c4104f0
LP		 302 if (t->sysv_start_priority < s->sysv_start_priority)
303 d = UNIT_AFTER;
304 else if (t->sysv_start_priority > s->sysv_start_priority)
305 d = UNIT_BEFORE;
306 else
307 continue;
308
309 /* FIXME: Maybe we should compare the name here lexicographically? */
310
701cc384 311 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 312 return r;
313 }
314
315 return 0;
316}
317
318static ExecCommand *exec_command_new(const char *path, const char *arg1) {
319 ExecCommand *c;
320
321 if (!(c = new0(ExecCommand, 1)))
322 return NULL;
323
324 if (!(c->path = strdup(path))) {
325 free(c);
326 return NULL;
327 }
328
329 if (!(c->argv = strv_new(path, arg1, NULL))) {
330 free(c->path);
331 free(c);
332 return NULL;
333 }
334
335 return c;
336}
337
338static int sysv_exec_commands(Service *s) {
339 ExecCommand *c;
340
341 assert(s);
342 assert(s->sysv_path);
343
344 if (!(c = exec_command_new(s->sysv_path, "start")))
345 return -ENOMEM;
346 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
347
348 if (!(c = exec_command_new(s->sysv_path, "stop")))
349 return -ENOMEM;
350 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
351
352 if (!(c = exec_command_new(s->sysv_path, "reload")))
353 return -ENOMEM;
354 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
355
356 return 0;
357}
358
e537352b 359static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 360 FILE *f;
361 Unit *u;
362 unsigned line = 0;
363 int r;
364 enum {
365 NORMAL,
366 DESCRIPTION,
367 LSB,
368 LSB_DESCRIPTION
369 } state = NORMAL;
23a177ef
LP		 370
371 assert(s);
372 assert(path);
2c4104f0
LP		 373
374 u = UNIT(s);
375
376 if (!(f = fopen(path, "re"))) {
377 r = errno == ENOENT ? 0 : -errno;
378 goto finish;
379 }
380
2c4104f0
LP		 381 free(s->sysv_path);
382 if (!(s->sysv_path = strdup(path))) {
383 r = -ENOMEM;
384 goto finish;
385 }
386
387 while (!feof(f)) {
388 char l[LINE_MAX], *t;
389
390 if (!fgets(l, sizeof(l), f)) {
391 if (feof(f))
392 break;
393
394 r = -errno;
395 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
396 goto finish;
397 }
398
399 line++;
400
401 t = strstrip(l);
402 if (*t != '#')
403 continue;
404
405 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
406 state = LSB;
23a177ef 407 s->sysv_has_lsb = true;
2c4104f0
LP		 408 continue;
409 }
410
411 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
412 state = NORMAL;
413 continue;
414 }
415
416 t++;
417 t += strspn(t, WHITESPACE);
418
419 if (state == NORMAL) {
420
421 /* Try to parse Red Hat style chkconfig headers */
422
c2b35af6 423 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 424 int start_priority;
8309400a 425 char runlevels[16], *k;
2c4104f0
LP		 426
427 state = NORMAL;
428
8309400a
LP		 429 if (sscanf(t+10, "%15s %i %*i",
430 runlevels,
431 &start_priority) != 2) {
2c4104f0
LP		 432
433 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
434 continue;
435 }
436
fbe9f3a9
LP		 437 /* A start priority gathered from the
438 * symlink farms is preferred over the
439 * data from the LSB header. */
8309400a 440 if (start_priority < 0 || start_priority > 99)
2c4104f0 441 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 442 else if (s->sysv_start_priority < 0)
8309400a
LP		 443 s->sysv_start_priority = start_priority;
444
445 char_array_0(runlevels);
446 k = delete_chars(runlevels, WHITESPACE "-");
447
448 if (k[0]) {
449 char *d;
450
451 if (!(d = strdup(k))) {
452 r = -ENOMEM;
453 goto finish;
454 }
455
456 free(s->sysv_runlevels);
457 s->sysv_runlevels = d;
2c4104f0
LP		 458 }
459
ed4c1cc6
LP		 460 } else if (startswith_no_case(t, "description:") &&
461 !u->meta.description) {
2c4104f0
LP		 462
463 size_t k = strlen(t);
464 char *d;
465
466 if (t[k-1] == '\\') {
467 state = DESCRIPTION;
468 t[k-1] = 0;
469 }
470
471 if (!(d = strdup(strstrip(t+12)))) {
472 r = -ENOMEM;
473 goto finish;
474 }
475
476 free(u->meta.description);
477 u->meta.description = d;
478
c2b35af6 479 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 480
481 char *fn;
482
483 state = NORMAL;
484
485 fn = strstrip(t+8);
486 if (!path_is_absolute(fn)) {
487 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
488 continue;
489 }
490
491 if (!(fn = strdup(fn))) {
492 r = -ENOMEM;
493 goto finish;
494 }
495
496 free(s->pid_file);
497 s->pid_file = fn;
498 }
499
500 } else if (state == DESCRIPTION) {
501
502 /* Try to parse Red Hat style description
503 * continuation */
504
505 size_t k = strlen(t);
506 char *d;
507
508 if (t[k-1] == '\\')
509 t[k-1] = 0;
510 else
511 state = NORMAL;
512
513 assert(u->meta.description);
514 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
515 r = -ENOMEM;
516 goto finish;
517 }
518
519 free(u->meta.description);
520 u->meta.description = d;
521
522 } else if (state == LSB || state == LSB_DESCRIPTION) {
523
c2b35af6 524 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 525 char *i, *w;
526 size_t z;
527
528 state = LSB;
529
f60f22df 530 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 531 char *n, *m;
532
533 if (!(n = strndup(w, z))) {
534 r = -ENOMEM;
535 goto finish;
536 }
537
b7ccee3c 538 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 539 free(n);
540
541 if (r < 0)
542 goto finish;
543
544 if (r == 0)
545 continue;
546
bd77d0fc
LP		 547 if (unit_name_to_type(m) == UNIT_SERVICE)
548 r = unit_add_name(u, m);
2c966c03
LP		 549 else
550 r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_REQUIRES, m, NULL, true);
bd77d0fc 551
2c4104f0
LP		 552 free(m);
553
554 if (r < 0)
555 goto finish;
556 }
557
c2b35af6
LP		 558 } else if (startswith_no_case(t, "Required-Start:") ||
559 startswith_no_case(t, "Should-Start:") ||
560 startswith_no_case(t, "X-Start-Before:") ||
561 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 562 char *i, *w;
563 size_t z;
564
565 state = LSB;
566
f60f22df 567 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 568 char *n, *m;
569
570 if (!(n = strndup(w, z))) {
571 r = -ENOMEM;
572 goto finish;
573 }
574
b7ccee3c 575 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 576 free(n);
577
578 if (r < 0)
579 goto finish;
580
581 if (r == 0)
582 continue;
583
c2b35af6 584 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 585 free(m);
586
587 if (r < 0)
588 goto finish;
589 }
c2b35af6 590 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 591 char *k, *d;
592
593 state = LSB;
594
595 k = delete_chars(t+14, WHITESPACE "-");
596
597 if (k[0] != 0) {
598 if (!(d = strdup(k))) {
599 r = -ENOMEM;
600 goto finish;
601 }
602
603 free(s->sysv_runlevels);
604 s->sysv_runlevels = d;
605 }
2c4104f0 606
ed4c1cc6
LP		 607 } else if (startswith_no_case(t, "Description:") &&
608 !u->meta.description) {
2c4104f0
LP		 609 char *d;
610
ed4c1cc6
LP		 611 /* We use the long description only if
612 * no short description is set. */
613
2c4104f0
LP		 614 state = LSB_DESCRIPTION;
615
616 if (!(d = strdup(strstrip(t+12)))) {
617 r = -ENOMEM;
618 goto finish;
619 }
620
621 free(u->meta.description);
622 u->meta.description = d;
623
ed4c1cc6 624 } else if (startswith_no_case(t, "Short-Description:")) {
2c4104f0
LP		 625 char *d;
626
2c4104f0
LP		 627 state = LSB;
628
629 if (!(d = strdup(strstrip(t+18)))) {
630 r = -ENOMEM;
631 goto finish;
632 }
633
7740296d 634 free(u->meta.description);
2c4104f0
LP		 635 u->meta.description = d;
636
723c83fd
LP		 637 } else if (startswith_no_case(t, "X-Interactive:")) {
638 int b;
639
640 if ((b = parse_boolean(strstrip(t+14))) < 0) {
641 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
642 continue;
643 }
644
645 if (b)
646 s->exec_context.std_input = EXEC_INPUT_TTY;
647 else
648 s->exec_context.std_input = EXEC_INPUT_NULL;
649
2c4104f0
LP		 650 } else if (state == LSB_DESCRIPTION) {
651
652 if (startswith(l, "#\t") || startswith(l, "# ")) {
653 char *d;
654
655 assert(u->meta.description);
656 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
657 r = -ENOMEM;
658 goto finish;
659 }
660
661 free(u->meta.description);
662 u->meta.description = d;
663 } else
664 state = LSB;
665 }
666 }
667 }
668
2c4104f0
LP		 669 if ((r = sysv_exec_commands(s)) < 0)
670 goto finish;
671
a40eb732 672 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 673 /* If there a runlevels configured for this service
674 * but none of the standard ones, then we assume this
675 * is some special kind of service (which might be
676 * needed for early boot) and don't create any links
677 * to it. */
678
a40eb732 679 s->meta.default_dependencies = false;
09cd1ab1 680
09cd1ab1
LP		 681 /* Don't timeout special services during boot (like fsck) */
682 s->timeout_usec = 0;
a40eb732 683 }
0fd030be 684
80876c20 685 /* Special setting for all SysV services */
1f48cf56 686 s->type = SERVICE_FORKING;
80876c20 687 s->valid_no_process = true;
1f48cf56 688 s->restart = SERVICE_ONCE;
acb591e4 689 s->exec_context.std_output = EXEC_OUTPUT_TTY;
2e22afe9 690 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 691
e537352b 692 u->meta.load_state = UNIT_LOADED;
23a177ef 693 r = 0;
2c4104f0
LP		 694
695finish:
696
697 if (f)
698 fclose(f);
699
700 return r;
701}
702
e537352b 703static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 704 char **p;
705
706 assert(s);
707 assert(name);
708
d017c6ca
LP		 709 /* For SysV services we strip the boot. or .sh
710 * prefixes/suffixes. */
711 if (startswith(name, "boot.") ||
712 endswith(name, ".sh.service"))
713 return -ENOENT;
714
4cd1fbcc 715 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 716 char *path;
717 int r;
718
719 if (asprintf(&path, "%s/%s", *p, name) < 0)
720 return -ENOMEM;
721
722 assert(endswith(path, ".service"));
723 path[strlen(path)-8] = 0;
724
e537352b 725 r = service_load_sysv_path(s, path);
fbe9f3a9 726
4cd1fbcc 727 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 728 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 729 strcat(path, ".sh");
730 r = service_load_sysv_path(s, path);
731 }
732
2c4104f0
LP		 733 free(path);
734
4cd1fbcc 735 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 736 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 737
738 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
739 return -ENOMEM;
740
741 path[strlen(path)-8] = 0;
742 r = service_load_sysv_path(s, path);
743 free(path);
744 }
745
23a177ef 746 if (r < 0)
2c4104f0 747 return r;
23a177ef 748
4cd1fbcc 749 if ((s->meta.load_state != UNIT_STUB))
23a177ef 750 break;
2c4104f0
LP		 751 }
752
753 return 0;
754}
755
e537352b 756static int service_load_sysv(Service *s) {
2c4104f0
LP		 757 const char *t;
758 Iterator i;
759 int r;
760
5cb5a6ff
LP		 761 assert(s);
762
763 /* Load service data from SysV init scripts, preferably with
764 * LSB headers ... */
765
4cd1fbcc 766 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 767 return 0;
768
4cd1fbcc 769 if ((t = s->meta.id))
e537352b 770 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 771 return r;
772
4cd1fbcc
LP		 773 if (s->meta.load_state == UNIT_STUB)
774 SET_FOREACH(t, s->meta.names, i) {
775 if (t == s->meta.id)
e537352b
LP		 776 continue;
777
778 if ((r == service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 779 return r;
780
4cd1fbcc 781 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 782 break;
783 }
2c4104f0
LP		 784
785 return 0;
5cb5a6ff
LP		 786}
787
05e343b7
LP		 788static int service_add_bus_name(Service *s) {
789 char *n;
790 int r;
791
792 assert(s);
793 assert(s->bus_name);
794
795 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
796 return 0;
797
798 r = unit_merge_by_name(UNIT(s), n);
799 free(n);
800
801 return r;
802}
803
243b1432
LP		 804static int service_verify(Service *s) {
805 assert(s);
806
4cd1fbcc 807 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 808 return 0;
809
810 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 811 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 812 return -EINVAL;
813 }
814
6cf6bbc2 815 if (s->exec_command[SERVICE_EXEC_START]->command_next) {
4cd1fbcc 816 log_error("%s has more than one ExecStart setting. Refusing.", s->meta.id);
6cf6bbc2
LP		 817 return -EINVAL;
818 }
819
05e343b7 820 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 821 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
822 return -EINVAL;
823 }
824
2e22afe9 825 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 826 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 827 return -EINVAL;
828 }
829
243b1432
LP		 830 return 0;
831}
832
a40eb732
LP		 833static int service_add_default_dependencies(Service *s) {
834 int r;
835
836 assert(s);
837
838 /* Add a number of automatic dependencies useful for the
839 * majority of services. */
840
841 /* First, pull in base system */
842 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
843
844 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
845 return r;
846
847 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
848
849 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
850 return r;
851 }
852
853 /* Second, activate normal shutdown */
854 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
855}
856
e537352b
LP		 857static int service_load(Unit *u) {
858 int r;
859 Service *s = SERVICE(u);
860
861 assert(s);
1e2e8133 862
5cb5a6ff 863 /* Load a .service file */
e537352b 864 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 865 return r;
866
bd77d0fc 867 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 868 if (u->meta.load_state == UNIT_STUB)
869 if ((r = service_load_sysv(s)) < 0)
23a177ef 870 return r;
d46de8a1 871
23a177ef 872 /* Still nothing found? Then let's give up */
e537352b 873 if (u->meta.load_state == UNIT_STUB)
23a177ef 874 return -ENOENT;
034c6ed7 875
23a177ef
LP		 876 /* We were able to load something, then let's add in the
877 * dropin directories. */
878 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 879 return r;
23a177ef
LP		 880
881 /* This is a new unit? Then let's add in some extras */
e537352b 882 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 883 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
884 return r;
885
886 if ((r = unit_add_default_cgroup(u)) < 0)
887 return r;
888
56d748b4 889 if ((r = sysv_fix_order(s)) < 0)
23a177ef 890 return r;
05e343b7
LP		 891
892 if (s->bus_name) {
893 if ((r = service_add_bus_name(s)) < 0)
894 return r;
895
896 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 897 return r;
05e343b7 898 }
c952c6ec
LP		 899
900 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
901 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 902
903 if (s->type == SERVICE_DBUS || s->bus_name)
904 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
905 return r;
906
907 if (s->meta.default_dependencies)
908 if ((r = service_add_default_dependencies(s)) < 0)
909 return r;
8e274523
LP		 910 }
911
243b1432 912 return service_verify(s);
034c6ed7
LP		 913}
914
87f0e418 915static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 916
5cb5a6ff 917 ServiceExecCommand c;
87f0e418 918 Service *s = SERVICE(u);
47be870b
LP		 919 const char *prefix2;
920 char *p2;
5cb5a6ff
LP		 921
922 assert(s);
923
47be870b
LP		 924 p2 = strappend(prefix, "\t");
925 prefix2 = p2 ? p2 : prefix;
44d8db9e 926
5cb5a6ff 927 fprintf(f,
81a2b7ce
LP		 928 "%sService State: %s\n"
929 "%sPermissionsStartOnly: %s\n"
8e274523 930 "%sRootDirectoryStartOnly: %s\n"
03d6ab85 931 "%sValidNoProcess: %s\n"
c952c6ec
LP		 932 "%sType: %s\n"
933 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 934 prefix, service_state_to_string(s->state),
935 prefix, yes_no(s->permissions_start_only),
8e274523 936 prefix, yes_no(s->root_directory_start_only),
03d6ab85 937 prefix, yes_no(s->valid_no_process),
c952c6ec
LP		 938 prefix, service_type_to_string(s->type),
939 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 940
70123e68
LP		 941 if (s->control_pid > 0)
942 fprintf(f,
bb00e604
LP		 943 "%sControl PID: %lu\n",
944 prefix, (unsigned long) s->control_pid);
70123e68
LP		 945
946 if (s->main_pid > 0)
947 fprintf(f,
bb00e604
LP		 948 "%sMain PID: %lu\n",
949 prefix, (unsigned long) s->main_pid);
70123e68 950
034c6ed7
LP		 951 if (s->pid_file)
952 fprintf(f,
953 "%sPIDFile: %s\n",
954 prefix, s->pid_file);
955
05e343b7
LP		 956 if (s->bus_name)
957 fprintf(f,
958 "%sBusName: %s\n"
959 "%sBus Name Good: %s\n",
960 prefix, s->bus_name,
961 prefix, yes_no(s->bus_name_good));
962
5cb5a6ff
LP		 963 exec_context_dump(&s->exec_context, f, prefix);
964
e537352b 965 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 966
44d8db9e
LP		 967 if (!s->exec_command[c])
968 continue;
969
40d50879 970 fprintf(f, "%s-> %s:\n",
94f04347 971 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 972
973 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 974 }
44d8db9e 975
2c4104f0
LP		 976 if (s->sysv_path)
977 fprintf(f,
23a177ef
LP		 978 "%sSysV Init Script Path: %s\n"
979 "%sSysV Init Script has LSB Header: %s\n",
980 prefix, s->sysv_path,
981 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 982
983 if (s->sysv_start_priority >= 0)
984 fprintf(f,
23a177ef 985 "%sSysVStartPriority: %i\n",
2c4104f0
LP		 986 prefix, s->sysv_start_priority);
987
8309400a
LP		 988 if (s->sysv_runlevels)
989 fprintf(f, "%sSysVRunLevels: %s\n",
990 prefix, s->sysv_runlevels);
23a177ef 991
8c47c732
LP		 992 if (s->status_text)
993 fprintf(f, "%sStatus Text: %s\n",
994 prefix, s->status_text);
995
47be870b 996 free(p2);
5cb5a6ff
LP		 997}
998
034c6ed7
LP		 999static int service_load_pid_file(Service *s) {
1000 char *k;
034c6ed7 1001 int r;
5925dd3c 1002 pid_t pid;
034c6ed7
LP		 1003
1004 assert(s);
1005
1006 if (s->main_pid_known)
1007 return 0;
1008
5e94833f
LP		 1009 assert(s->main_pid <= 0);
1010
034c6ed7
LP		 1011 if (!s->pid_file)
1012 return -ENOENT;
1013
1014 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1015 return r;
1016
5925dd3c
LP		 1017 r = parse_pid(k, &pid);
1018 free(k);
034c6ed7 1019
5925dd3c
LP		 1020 if (r < 0)
1021 return r;
406eaf93 1022
5925dd3c
LP		 1023 if (kill(pid, 0) < 0 && errno != EPERM) {
1024 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1025 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1026 return -ESRCH;
1027 }
1028
5925dd3c 1029 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1030 return r;
1031
5925dd3c
LP		 1032 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1033 /* FIXME: we need to do something here */
1034 return r;
034c6ed7
LP		 1035
1036 return 0;
1037}
1038
3e33402a
LP		 1039static int service_get_sockets(Service *s, Set **_set) {
1040 Set *set;
ceee3d82
LP		 1041 Iterator i;
1042 char *t;
3e33402a 1043 int r;
ceee3d82
LP		 1044
1045 assert(s);
3e33402a
LP		 1046 assert(_set);
1047
6cf6bbc2
LP		 1048 if (s->socket_fd >= 0)
1049 return 0;
1050
3e33402a
LP		 1051 /* Collects all Socket objects that belong to this
1052 * service. Note that a service might have multiple sockets
1053 * via multiple names. */
1054
1055 if (!(set = set_new(NULL, NULL)))
1056 return -ENOMEM;
ceee3d82 1057
4cd1fbcc 1058 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1059 char *k;
1060 Unit *p;
1061
1062 /* Look for all socket objects that go by any of our
1063 * units and collect their fds */
1064
3e33402a
LP		 1065 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1066 r = -ENOMEM;
1067 goto fail;
1068 }
ceee3d82 1069
4cd1fbcc 1070 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1071 free(k);
1072
8d567588
LP		 1073 if (!p)
1074 continue;
ceee3d82 1075
3e33402a
LP		 1076 if ((r = set_put(set, p)) < 0)
1077 goto fail;
ceee3d82
LP		 1078 }
1079
3e33402a
LP		 1080 *_set = set;
1081 return 0;
1082
1083fail:
1084 set_free(set);
1085 return r;
1086}
1087
e537352b 1088static int service_notify_sockets_dead(Service *s) {
3e33402a
LP		 1089 Iterator i;
1090 Set *set;
47be870b 1091 Socket *sock;
3e33402a
LP		 1092 int r;
1093
1094 assert(s);
1095
6cf6bbc2
LP		 1096 if (s->socket_fd >= 0)
1097 return 0;
1098
3e33402a 1099 /* Notifies all our sockets when we die */
3e33402a
LP		 1100 if ((r = service_get_sockets(s, &set)) < 0)
1101 return r;
1102
47be870b
LP		 1103 SET_FOREACH(sock, set, i)
1104 socket_notify_service_dead(sock);
3e33402a
LP		 1105
1106 set_free(set);
1107
ceee3d82
LP		 1108 return 0;
1109}
1110
034c6ed7
LP		 1111static void service_set_state(Service *s, ServiceState state) {
1112 ServiceState old_state;
5cb5a6ff
LP		 1113 assert(s);
1114
034c6ed7 1115 old_state = s->state;
5cb5a6ff 1116 s->state = state;
034c6ed7
LP		 1117
1118 if (state != SERVICE_START_PRE &&
1119 state != SERVICE_START &&
1120 state != SERVICE_START_POST &&
1121 state != SERVICE_RELOAD &&
1122 state != SERVICE_STOP &&
1123 state != SERVICE_STOP_SIGTERM &&
1124 state != SERVICE_STOP_SIGKILL &&
1125 state != SERVICE_STOP_POST &&
1126 state != SERVICE_FINAL_SIGTERM &&
1127 state != SERVICE_FINAL_SIGKILL &&
1128 state != SERVICE_AUTO_RESTART)
acbb0225 1129 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1130
7d55e835
LP		 1131 if (state != SERVICE_START &&
1132 state != SERVICE_START_POST &&
034c6ed7
LP		 1133 state != SERVICE_RUNNING &&
1134 state != SERVICE_RELOAD &&
1135 state != SERVICE_STOP &&
1136 state != SERVICE_STOP_SIGTERM &&
1137 state != SERVICE_STOP_SIGKILL)
5e94833f 1138 service_unwatch_main_pid(s);
034c6ed7
LP		 1139
1140 if (state != SERVICE_START_PRE &&
1141 state != SERVICE_START &&
1142 state != SERVICE_START_POST &&
1143 state != SERVICE_RELOAD &&
1144 state != SERVICE_STOP &&
1145 state != SERVICE_STOP_SIGTERM &&
1146 state != SERVICE_STOP_SIGKILL &&
1147 state != SERVICE_STOP_POST &&
1148 state != SERVICE_FINAL_SIGTERM &&
e537352b 1149 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1150 service_unwatch_control_pid(s);
034c6ed7 1151 s->control_command = NULL;
a16e1123 1152 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1153 }
034c6ed7 1154
ceee3d82
LP		 1155 if (state == SERVICE_DEAD ||
1156 state == SERVICE_STOP ||
1157 state == SERVICE_STOP_SIGTERM ||
1158 state == SERVICE_STOP_SIGKILL ||
1159 state == SERVICE_STOP_POST ||
1160 state == SERVICE_FINAL_SIGTERM ||
1161 state == SERVICE_FINAL_SIGKILL ||
18c78fb1 1162 state == SERVICE_MAINTENANCE ||
ceee3d82 1163 state == SERVICE_AUTO_RESTART)
e537352b 1164 service_notify_sockets_dead(s);
ceee3d82 1165
4f2d528d
LP		 1166 if (state != SERVICE_START_PRE &&
1167 state != SERVICE_START &&
6cf6bbc2
LP		 1168 state != SERVICE_START_POST &&
1169 state != SERVICE_RUNNING &&
1170 state != SERVICE_RELOAD &&
1171 state != SERVICE_STOP &&
1172 state != SERVICE_STOP_SIGTERM &&
1173 state != SERVICE_STOP_SIGKILL &&
1174 state != SERVICE_STOP_POST &&
1175 state != SERVICE_FINAL_SIGTERM &&
1176 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1177 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1178 service_close_socket_fd(s);
6cf6bbc2
LP		 1179 service_connection_unref(s);
1180 }
4f2d528d 1181
e537352b 1182 if (old_state != state)
4cd1fbcc 1183 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1184
1185 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1186}
1187
a16e1123
LP		 1188static int service_coldplug(Unit *u) {
1189 Service *s = SERVICE(u);
1190 int r;
1191
1192 assert(s);
1193 assert(s->state == SERVICE_DEAD);
1194
1195 if (s->deserialized_state != s->state) {
1196
1197 if (s->deserialized_state == SERVICE_START_PRE ||
1198 s->deserialized_state == SERVICE_START ||
1199 s->deserialized_state == SERVICE_START_POST ||
1200 s->deserialized_state == SERVICE_RELOAD ||
1201 s->deserialized_state == SERVICE_STOP ||
1202 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1203 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1204 s->deserialized_state == SERVICE_STOP_POST ||
1205 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1206 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1207 s->deserialized_state == SERVICE_AUTO_RESTART) {
1208
1209 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1210 usec_t k;
1211
1212 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1213
1214 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1215 return r;
1216 }
1217 }
a16e1123
LP		 1218
1219 if ((s->deserialized_state == SERVICE_START &&
1220 (s->type == SERVICE_FORKING ||
8c47c732
LP		 1221 s->type == SERVICE_DBUS ||
1222 s->type == SERVICE_FINISH ||
1223 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1224 s->deserialized_state == SERVICE_START_POST ||
1225 s->deserialized_state == SERVICE_RUNNING ||
1226 s->deserialized_state == SERVICE_RELOAD ||
1227 s->deserialized_state == SERVICE_STOP ||
1228 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1229 s->deserialized_state == SERVICE_STOP_SIGKILL)
1230 if (s->main_pid > 0)
1231 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1232 return r;
1233
1234 if (s->deserialized_state == SERVICE_START_PRE ||
1235 s->deserialized_state == SERVICE_START ||
1236 s->deserialized_state == SERVICE_START_POST ||
1237 s->deserialized_state == SERVICE_RELOAD ||
1238 s->deserialized_state == SERVICE_STOP ||
1239 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1240 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1241 s->deserialized_state == SERVICE_STOP_POST ||
1242 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1243 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1244 if (s->control_pid > 0)
1245 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1246 return r;
1247
1248 service_set_state(s, s->deserialized_state);
1249 }
1250
1251 return 0;
1252}
1253
44d8db9e
LP		 1254static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1255 Iterator i;
1256 int r;
1257 int *rfds = NULL;
1258 unsigned rn_fds = 0;
3e33402a 1259 Set *set;
47be870b 1260 Socket *sock;
44d8db9e
LP		 1261
1262 assert(s);
1263 assert(fds);
1264 assert(n_fds);
1265
6cf6bbc2
LP		 1266 if (s->socket_fd >= 0)
1267 return 0;
1268
3e33402a
LP		 1269 if ((r = service_get_sockets(s, &set)) < 0)
1270 return r;
1271
47be870b 1272 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1273 int *cfds;
1274 unsigned cn_fds;
1275
47be870b 1276 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1277 goto fail;
1278
1279 if (!cfds)
1280 continue;
1281
1282 if (!rfds) {
1283 rfds = cfds;
1284 rn_fds = cn_fds;
1285 } else {
1286 int *t;
1287
1288 if (!(t = new(int, rn_fds+cn_fds))) {
1289 free(cfds);
1290 r = -ENOMEM;
1291 goto fail;
1292 }
1293
1294 memcpy(t, rfds, rn_fds);
1295 memcpy(t+rn_fds, cfds, cn_fds);
1296 free(rfds);
1297 free(cfds);
1298
1299 rfds = t;
1300 rn_fds = rn_fds+cn_fds;
1301 }
1302 }
1303
1304 *fds = rfds;
1305 *n_fds = rn_fds;
3e33402a
LP		 1306
1307 set_free(set);
1308
44d8db9e
LP		 1309 return 0;
1310
1311fail:
3e33402a 1312 set_free(set);
44d8db9e 1313 free(rfds);
3e33402a 1314
44d8db9e
LP		 1315 return r;
1316}
1317
81a2b7ce
LP		 1318static int service_spawn(
1319 Service *s,
1320 ExecCommand *c,
1321 bool timeout,
1322 bool pass_fds,
1323 bool apply_permissions,
1324 bool apply_chroot,
1e3ad081 1325 bool apply_tty_stdin,
c952c6ec 1326 bool set_notify_socket,
81a2b7ce
LP		 1327 pid_t *_pid) {
1328
034c6ed7
LP		 1329 pid_t pid;
1330 int r;
6cf6bbc2 1331 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1332 unsigned n_fds = 0, n_env = 0;
1333 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1334
1335 assert(s);
1336 assert(c);
1337 assert(_pid);
1338
6cf6bbc2
LP		 1339 if (pass_fds ||
1340 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1341 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1342 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1343
4f2d528d
LP		 1344 if (s->socket_fd >= 0) {
1345 fds = &s->socket_fd;
1346 n_fds = 1;
6cf6bbc2
LP		 1347 } else {
1348 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1349 goto fail;
1350
1351 fds = fdsbuf;
1352 }
4f2d528d 1353 }
44d8db9e 1354
e558336f 1355 if (timeout && s->timeout_usec) {
acbb0225 1356 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1357 goto fail;
1358 } else
acbb0225 1359 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1360
9e2f7c11
LP		 1361 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1362 r = -ENOMEM;
1363 goto fail;
1364 }
1365
2105e76a
LP		 1366 if (!(our_env = new0(char*, 3))) {
1367 r = -ENOMEM;
1368 goto fail;
1369 }
c952c6ec 1370
2105e76a
LP		 1371 if (set_notify_socket)
1372 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1373 r = -ENOMEM;
1374 goto fail;
1375 }
1376
2105e76a
LP		 1377 if (s->main_pid > 0)
1378 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1379 r = -ENOMEM;
1380 goto fail;
1381 }
2105e76a
LP		 1382
1383 if (!(final_env = strv_env_merge(2,
1384 s->meta.manager->environment,
1385 our_env,
1386 NULL))) {
1387 r = -ENOMEM;
1388 goto fail;
1389 }
c952c6ec 1390
9e2f7c11
LP		 1391 r = exec_spawn(c,
1392 argv,
1393 &s->exec_context,
1394 fds, n_fds,
2105e76a 1395 final_env,
9e2f7c11
LP		 1396 apply_permissions,
1397 apply_chroot,
1e3ad081 1398 apply_tty_stdin,
4cd1fbcc
LP		 1399 s->meta.manager->confirm_spawn,
1400 s->meta.cgroup_bondings,
9e2f7c11
LP		 1401 &pid);
1402
9e2f7c11 1403 if (r < 0)
034c6ed7
LP		 1404 goto fail;
1405
4f2d528d 1406
87f0e418 1407 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1408 /* FIXME: we need to do something here */
1409 goto fail;
1410
2105e76a
LP		 1411 free(fdsbuf);
1412 strv_free(argv);
1413 strv_free(our_env);
1414 strv_free(final_env);
1415
034c6ed7
LP		 1416 *_pid = pid;
1417
5cb5a6ff 1418 return 0;
034c6ed7
LP		 1419
1420fail:
2105e76a 1421 free(fdsbuf);
c952c6ec 1422 strv_free(argv);
2105e76a
LP		 1423 strv_free(our_env);
1424 strv_free(final_env);
c952c6ec 1425
034c6ed7 1426 if (timeout)
acbb0225 1427 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1428
1429 return r;
1430}
1431
80876c20
LP		 1432static int main_pid_good(Service *s) {
1433 assert(s);
1434
1435 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1436 * don't know */
1437
1438 /* If we know the pid file, then lets just check if it is
1439 * still valid */
1440 if (s->main_pid_known)
1441 return s->main_pid > 0;
1442
1443 /* We don't know the pid */
1444 return -EAGAIN;
1445}
1446
1447static int control_pid_good(Service *s) {
1448 assert(s);
1449
1450 return s->control_pid > 0;
1451}
1452
1453static int cgroup_good(Service *s) {
1454 int r;
1455
1456 assert(s);
1457
4cd1fbcc 1458 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1459 return r;
1460
1461 return !r;
1462}
1463
034c6ed7
LP		 1464static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1465 int r;
1466 assert(s);
1467
1468 if (!success)
1469 s->failure = true;
1470
1471 if (allow_restart &&
3a762661 1472 s->allow_restart &&
034c6ed7
LP		 1473 (s->restart == SERVICE_RESTART_ALWAYS ||
1474 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1475
acbb0225 1476 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1477 goto fail;
1478
1479 service_set_state(s, SERVICE_AUTO_RESTART);
1480 } else
18c78fb1 1481 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
034c6ed7
LP		 1482
1483 return;
1484
1485fail:
4cd1fbcc 1486 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1487 service_enter_dead(s, false, false);
1488}
1489
1490static void service_enter_signal(Service *s, ServiceState state, bool success);
1491
1492static void service_enter_stop_post(Service *s, bool success) {
1493 int r;
1494 assert(s);
1495
1496 if (!success)
1497 s->failure = true;
1498
5e94833f
LP		 1499 service_unwatch_control_pid(s);
1500
a16e1123 1501 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1502 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1503 if ((r = service_spawn(s,
1504 s->control_command,
1505 true,
1506 false,
1507 !s->permissions_start_only,
1508 !s->root_directory_start_only,
1e3ad081 1509 true,
c952c6ec 1510 false,
81a2b7ce 1511 &s->control_pid)) < 0)
034c6ed7
LP		 1512 goto fail;
1513
d6ea93e3 1514
80876c20
LP		 1515 service_set_state(s, SERVICE_STOP_POST);
1516 } else
1517 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1518
1519 return;
1520
1521fail:
4cd1fbcc 1522 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1523 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1524}
1525
1526static void service_enter_signal(Service *s, ServiceState state, bool success) {
1527 int r;
1528 bool sent = false;
1529
1530 assert(s);
1531
1532 if (!success)
1533 s->failure = true;
1534
2e22afe9
LP		 1535 if (s->exec_context.kill_mode != KILL_NONE) {
1536 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1537
2e22afe9 1538 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
034c6ed7 1539
4cd1fbcc 1540 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
50159e6a
LP		 1541 if (r != -EAGAIN && r != -ESRCH)
1542 goto fail;
1543 } else
034c6ed7
LP		 1544 sent = true;
1545 }
1546
50159e6a
LP		 1547 if (!sent) {
1548 r = 0;
80876c20 1549
50159e6a 1550 if (s->main_pid > 0) {
2e22afe9 1551 if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
50159e6a
LP		 1552 r = -errno;
1553 else
1554 sent = true;
1555 }
1556
1557 if (s->control_pid > 0) {
2e22afe9 1558 if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
50159e6a
LP		 1559 r = -errno;
1560 else
1561 sent = true;
1562 }
1563
1564 if (r < 0)
1565 goto fail;
1566 }
d6ea93e3 1567 }
034c6ed7 1568
e93bc5a6 1569 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
e558336f
LP		 1570 if (s->timeout_usec > 0)
1571 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1572 goto fail;
d6ea93e3 1573
80876c20
LP		 1574 service_set_state(s, state);
1575 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1576 service_enter_stop_post(s, true);
1577 else
034c6ed7
LP		 1578 service_enter_dead(s, true, true);
1579
1580 return;
1581
1582fail:
4cd1fbcc 1583 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1584
80876c20 1585 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1586 service_enter_stop_post(s, false);
1587 else
1588 service_enter_dead(s, false, true);
1589}
1590
1591static void service_enter_stop(Service *s, bool success) {
1592 int r;
5925dd3c 1593
034c6ed7
LP		 1594 assert(s);
1595
1596 if (!success)
1597 s->failure = true;
1598
5e94833f
LP		 1599 service_unwatch_control_pid(s);
1600
a16e1123 1601 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1602 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1603 if ((r = service_spawn(s,
1604 s->control_command,
1605 true,
1606 false,
1607 !s->permissions_start_only,
1608 !s->root_directory_start_only,
c952c6ec 1609 false,
1e3ad081 1610 false,
e55224ca 1611 &s->control_pid)) < 0)
034c6ed7
LP		 1612 goto fail;
1613
80876c20
LP		 1614 service_set_state(s, SERVICE_STOP);
1615 } else
034c6ed7
LP		 1616 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1617
1618 return;
1619
1620fail:
4cd1fbcc 1621 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1622 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1623}
1624
80876c20 1625static void service_enter_running(Service *s, bool success) {
4eab639f 1626 int main_pid_ok, cgroup_ok;
80876c20
LP		 1627 assert(s);
1628
1629 if (!success)
1630 s->failure = true;
1631
4eab639f
LP		 1632 main_pid_ok = main_pid_good(s);
1633 cgroup_ok = cgroup_good(s);
1634
1635 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1636 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20
LP		 1637 service_set_state(s, SERVICE_RUNNING);
1638 else if (s->valid_no_process)
1639 service_set_state(s, SERVICE_EXITED);
1640 else
1641 service_enter_stop(s, true);
1642}
1643
034c6ed7
LP		 1644static void service_enter_start_post(Service *s) {
1645 int r;
1646 assert(s);
1647
5e94833f
LP		 1648 service_unwatch_control_pid(s);
1649
a16e1123 1650 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1651 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1652 if ((r = service_spawn(s,
1653 s->control_command,
1654 true,
1655 false,
1656 !s->permissions_start_only,
1657 !s->root_directory_start_only,
c952c6ec 1658 false,
1e3ad081 1659 false,
e55224ca 1660 &s->control_pid)) < 0)
034c6ed7
LP		 1661 goto fail;
1662
80876c20
LP		 1663 service_set_state(s, SERVICE_START_POST);
1664 } else
1665 service_enter_running(s, true);
034c6ed7
LP		 1666
1667 return;
1668
1669fail:
4cd1fbcc 1670 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1671 service_enter_stop(s, false);
1672}
1673
1674static void service_enter_start(Service *s) {
1675 pid_t pid;
1676 int r;
1677
1678 assert(s);
1679
1680 assert(s->exec_command[SERVICE_EXEC_START]);
1681 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1682
80876c20
LP		 1683 if (s->type == SERVICE_FORKING)
1684 service_unwatch_control_pid(s);
1685 else
1686 service_unwatch_main_pid(s);
1687
81a2b7ce
LP		 1688 if ((r = service_spawn(s,
1689 s->exec_command[SERVICE_EXEC_START],
8c47c732 1690 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1691 true,
1692 true,
1693 true,
1e3ad081 1694 true,
c952c6ec 1695 s->notify_access != NOTIFY_NONE,
81a2b7ce 1696 &pid)) < 0)
034c6ed7
LP		 1697 goto fail;
1698
1699 if (s->type == SERVICE_SIMPLE) {
1700 /* For simple services we immediately start
1701 * the START_POST binaries. */
1702
5925dd3c 1703 service_set_main_pid(s, pid);
034c6ed7
LP		 1704 service_enter_start_post(s);
1705
1706 } else if (s->type == SERVICE_FORKING) {
1707
1708 /* For forking services we wait until the start
1709 * process exited. */
1710
a16e1123 1711 s->control_command_id = SERVICE_EXEC_START;
034c6ed7 1712 s->control_command = s->exec_command[SERVICE_EXEC_START];
5925dd3c 1713
e55224ca 1714 s->control_pid = pid;
80876c20
LP		 1715 service_set_state(s, SERVICE_START);
1716
05e343b7 1717 } else if (s->type == SERVICE_FINISH ||
8c47c732
LP		 1718 s->type == SERVICE_DBUS ||
1719 s->type == SERVICE_NOTIFY) {
7d55e835
LP		 1720
1721 /* For finishing services we wait until the start
1722 * process exited, too, but it is our main process. */
1723
05e343b7 1724 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1725 * but wait for the bus name to appear on the
1726 * bus. Notify services are similar. */
05e343b7 1727
5925dd3c 1728 service_set_main_pid(s, pid);
80876c20 1729 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1730 } else
1731 assert_not_reached("Unknown service type");
1732
1733 return;
1734
1735fail:
4cd1fbcc 1736 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1737 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1738}
1739
1740static void service_enter_start_pre(Service *s) {
1741 int r;
1742
1743 assert(s);
1744
5e94833f
LP		 1745 service_unwatch_control_pid(s);
1746
a16e1123 1747 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1748 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1749 if ((r = service_spawn(s,
1750 s->control_command,
1751 true,
1752 false,
1753 !s->permissions_start_only,
1754 !s->root_directory_start_only,
1e3ad081 1755 true,
c952c6ec 1756 false,
e55224ca 1757 &s->control_pid)) < 0)
034c6ed7
LP		 1758 goto fail;
1759
80876c20
LP		 1760 service_set_state(s, SERVICE_START_PRE);
1761 } else
034c6ed7
LP		 1762 service_enter_start(s);
1763
1764 return;
1765
1766fail:
4cd1fbcc 1767 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1768 service_enter_dead(s, false, true);
1769}
1770
1771static void service_enter_restart(Service *s) {
1772 int r;
398ef8ba
LP		 1773 DBusError error;
1774
034c6ed7 1775 assert(s);
398ef8ba 1776 dbus_error_init(&error);
034c6ed7 1777
9ea9a0c8
LP		 1778 service_enter_dead(s, true, false);
1779
398ef8ba 1780 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL, NULL)) < 0)
034c6ed7
LP		 1781 goto fail;
1782
4cd1fbcc 1783 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 1784 return;
1785
1786fail:
398ef8ba 1787 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 1788 service_enter_dead(s, false, false);
398ef8ba
LP		 1789
1790 dbus_error_free(&error);
034c6ed7
LP		 1791}
1792
1793static void service_enter_reload(Service *s) {
1794 int r;
1795
1796 assert(s);
1797
5e94833f
LP		 1798 service_unwatch_control_pid(s);
1799
a16e1123 1800 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 1801 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 1802 if ((r = service_spawn(s,
1803 s->control_command,
1804 true,
1805 false,
1806 !s->permissions_start_only,
1807 !s->root_directory_start_only,
c952c6ec 1808 false,
1e3ad081 1809 false,
e55224ca 1810 &s->control_pid)) < 0)
034c6ed7
LP		 1811 goto fail;
1812
80876c20
LP		 1813 service_set_state(s, SERVICE_RELOAD);
1814 } else
1815 service_enter_running(s, true);
034c6ed7
LP		 1816
1817 return;
1818
1819fail:
4cd1fbcc 1820 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1821 service_enter_stop(s, false);
1822}
1823
1824static void service_run_next(Service *s, bool success) {
1825 int r;
1826
1827 assert(s);
1828 assert(s->control_command);
1829 assert(s->control_command->command_next);
1830
1831 if (!success)
1832 s->failure = true;
1833
1834 s->control_command = s->control_command->command_next;
1835
5e94833f
LP		 1836 service_unwatch_control_pid(s);
1837
81a2b7ce
LP		 1838 if ((r = service_spawn(s,
1839 s->control_command,
1840 true,
1841 false,
1842 !s->permissions_start_only,
1843 !s->root_directory_start_only,
c952c6ec 1844 false,
1e3ad081 1845 false,
e55224ca 1846 &s->control_pid)) < 0)
034c6ed7
LP		 1847 goto fail;
1848
1849 return;
1850
1851fail:
4cd1fbcc 1852 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
034c6ed7 1853
80876c20
LP		 1854 if (s->state == SERVICE_START_PRE)
1855 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1856 else if (s->state == SERVICE_STOP)
1857 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 1858 else if (s->state == SERVICE_STOP_POST)
1859 service_enter_dead(s, false, true);
1860 else
1861 service_enter_stop(s, false);
5cb5a6ff
LP		 1862}
1863
87f0e418
LP		 1864static int service_start(Unit *u) {
1865 Service *s = SERVICE(u);
5cb5a6ff
LP		 1866
1867 assert(s);
1868
034c6ed7
LP		 1869 /* We cannot fulfill this request right now, try again later
1870 * please! */
1871 if (s->state == SERVICE_STOP ||
1872 s->state == SERVICE_STOP_SIGTERM ||
1873 s->state == SERVICE_STOP_SIGKILL ||
1874 s->state == SERVICE_STOP_POST ||
1875 s->state == SERVICE_FINAL_SIGTERM ||
1876 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 1877 return -EAGAIN;
1878
034c6ed7
LP		 1879 /* Already on it! */
1880 if (s->state == SERVICE_START_PRE ||
1881 s->state == SERVICE_START ||
1882 s->state == SERVICE_START_POST)
1883 return 0;
1884
18c78fb1 1885 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 1886
1e2e8133
LP		 1887 /* Make sure we don't enter a busy loop of some kind. */
1888 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 1889 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 1890 return -ECANCELED;
1e2e8133
LP		 1891 }
1892
034c6ed7
LP		 1893 s->failure = false;
1894 s->main_pid_known = false;
3a762661 1895 s->allow_restart = true;
034c6ed7
LP		 1896
1897 service_enter_start_pre(s);
1898 return 0;
5cb5a6ff
LP		 1899}
1900
87f0e418
LP		 1901static int service_stop(Unit *u) {
1902 Service *s = SERVICE(u);
5cb5a6ff
LP		 1903
1904 assert(s);
1905
3f6c78dc
LP		 1906 /* This is a user request, so don't do restarts on this
1907 * shutdown. */
1908 s->allow_restart = false;
034c6ed7 1909
e537352b
LP		 1910 /* Already on it */
1911 if (s->state == SERVICE_STOP ||
1912 s->state == SERVICE_STOP_SIGTERM ||
1913 s->state == SERVICE_STOP_SIGKILL ||
1914 s->state == SERVICE_STOP_POST ||
1915 s->state == SERVICE_FINAL_SIGTERM ||
1916 s->state == SERVICE_FINAL_SIGKILL)
1917 return 0;
1918
3f6c78dc 1919 /* Don't allow a restart */
034c6ed7
LP		 1920 if (s->state == SERVICE_AUTO_RESTART) {
1921 service_set_state(s, SERVICE_DEAD);
1922 return 0;
1923 }
1924
3f6c78dc
LP		 1925 /* If there's already something running we go directly into
1926 * kill mode. */
1927 if (s->state == SERVICE_START_PRE ||
1928 s->state == SERVICE_START ||
1929 s->state == SERVICE_START_POST ||
1930 s->state == SERVICE_RELOAD) {
1931 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1932 return 0;
1933 }
5cb5a6ff 1934
3f6c78dc
LP		 1935 assert(s->state == SERVICE_RUNNING ||
1936 s->state == SERVICE_EXITED);
3a762661 1937
034c6ed7 1938 service_enter_stop(s, true);
5cb5a6ff
LP		 1939 return 0;
1940}
1941
87f0e418
LP		 1942static int service_reload(Unit *u) {
1943 Service *s = SERVICE(u);
034c6ed7
LP		 1944
1945 assert(s);
1946
80876c20 1947 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 1948
1949 service_enter_reload(s);
5cb5a6ff
LP		 1950 return 0;
1951}
1952
87f0e418
LP		 1953static bool service_can_reload(Unit *u) {
1954 Service *s = SERVICE(u);
034c6ed7
LP		 1955
1956 assert(s);
1957
1958 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1959}
1960
a16e1123
LP		 1961static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1962 Service *s = SERVICE(u);
1963
1964 assert(u);
1965 assert(f);
1966 assert(fds);
1967
1968 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
1969 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1970
1971 if (s->control_pid > 0)
5925dd3c 1972 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 1973
5925dd3c
LP		 1974 if (s->main_pid_known && s->main_pid > 0)
1975 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 1976
1977 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
1978
1979 /* There's a minor uncleanliness here: if there are multiple
1980 * commands attached here, we will start from the first one
1981 * again */
1982 if (s->control_command_id >= 0)
825636e5 1983 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 1984
1985 if (s->socket_fd >= 0) {
1986 int copy;
1987
1988 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
1989 return copy;
1990
1991 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
1992 }
1993
ecdbca40
LP		 1994 if (s->main_exec_status.pid > 0) {
1995 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
1996
1997 if (s->main_exec_status.start_timestamp.realtime > 0) {
1998 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
1999 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2000
2001 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2002 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2003 }
2004
2005 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2006 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2007 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2008 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2009 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2010
2011 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2012 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2013 }
2014 }
2015
a16e1123
LP		 2016 return 0;
2017}
2018
2019static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2020 Service *s = SERVICE(u);
2021 int r;
2022
2023 assert(u);
2024 assert(key);
2025 assert(value);
2026 assert(fds);
2027
2028 if (streq(key, "state")) {
2029 ServiceState state;
2030
2031 if ((state = service_state_from_string(value)) < 0)
2032 log_debug("Failed to parse state value %s", value);
2033 else
2034 s->deserialized_state = state;
2035 } else if (streq(key, "failure")) {
2036 int b;
2037
2038 if ((b = parse_boolean(value)) < 0)
2039 log_debug("Failed to parse failure value %s", value);
2040 else
2041 s->failure = b || s->failure;
2042 } else if (streq(key, "control-pid")) {
5925dd3c 2043 pid_t pid;
a16e1123 2044
5925dd3c 2045 if ((r = parse_pid(value, &pid)) < 0)
a16e1123
LP		 2046 log_debug("Failed to parse control-pid value %s", value);
2047 else
e55224ca 2048 s->control_pid = pid;
a16e1123 2049 } else if (streq(key, "main-pid")) {
5925dd3c 2050 pid_t pid;
a16e1123 2051
5925dd3c 2052 if ((r = parse_pid(value, &pid)) < 0)
a16e1123
LP		 2053 log_debug("Failed to parse main-pid value %s", value);
2054 else
5925dd3c 2055 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2056 } else if (streq(key, "main-pid-known")) {
2057 int b;
2058
2059 if ((b = parse_boolean(value)) < 0)
2060 log_debug("Failed to parse main-pid-known value %s", value);
2061 else
2062 s->main_pid_known = b;
2063 } else if (streq(key, "control-command")) {
2064 ServiceExecCommand id;
2065
2066 if ((id = service_exec_command_from_string(value)) < 0)
2067 log_debug("Failed to parse exec-command value %s", value);
2068 else {
2069 s->control_command_id = id;
2070 s->control_command = s->exec_command[id];
2071 }
2072 } else if (streq(key, "socket-fd")) {
2073 int fd;
2074
2075 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2076 log_debug("Failed to parse socket-fd value %s", value);
2077 else {
2078
2079 if (s->socket_fd >= 0)
2080 close_nointr_nofail(s->socket_fd);
2081 s->socket_fd = fdset_remove(fds, fd);
2082 }
ecdbca40
LP		 2083 } else if (streq(key, "main-exec-status-pid")) {
2084 pid_t pid;
2085
2086 if ((r = parse_pid(value, &pid)) < 0)
2087 log_debug("Failed to parse main-exec-status-pid value %s", value);
2088 else
2089 s->main_exec_status.pid = pid;
2090 } else if (streq(key, "main-exec-status-code")) {
2091 int i;
2092
2093 if ((r = safe_atoi(value, &i)) < 0)
2094 log_debug("Failed to parse main-exec-status-code value %s", value);
2095 else
2096 s->main_exec_status.code = i;
2097 } else if (streq(key, "main-exec-status-status")) {
2098 int i;
2099
2100 if ((r = safe_atoi(value, &i)) < 0)
2101 log_debug("Failed to parse main-exec-status-status value %s", value);
2102 else
2103 s->main_exec_status.status = i;
2104 } else if (streq(key, "main-exec-status-start-realtime")) {
2105 uint64_t k;
2106
af2ab1f9 2107 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2108 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2109 else
2110 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2111 } else if (streq(key, "main-exec-status-start-monotonic")) {
2112 uint64_t k;
2113
af2ab1f9 2114 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2115 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2116 else
2117 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2118 } else if (streq(key, "main-exec-status-exit-realtime")) {
2119 uint64_t k;
2120
af2ab1f9 2121 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2122 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2123 else
2124 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2125 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2126 uint64_t k;
2127
af2ab1f9 2128 if ((r = safe_atou64(value, &k)) < 0)
ecdbca40
LP		 2129 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2130 else
2131 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2132 } else
2133 log_debug("Unknown serialization key '%s'", key);
2134
2135 return 0;
2136}
2137
87f0e418
LP		 2138static UnitActiveState service_active_state(Unit *u) {
2139 assert(u);
5cb5a6ff 2140
acbb0225 2141 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2142}
2143
10a94420
LP		 2144static const char *service_sub_state_to_string(Unit *u) {
2145 assert(u);
2146
2147 return service_state_to_string(SERVICE(u)->state);
2148}
2149
701cc384
LP		 2150static bool service_check_gc(Unit *u) {
2151 Service *s = SERVICE(u);
2152
2153 assert(s);
2154
2155 return !!s->sysv_path;
2156}
2157
2158static bool service_check_snapshot(Unit *u) {
2159 Service *s = SERVICE(u);
2160
2161 assert(s);
2162
2163 return !s->got_socket_fd;
2164}
2165
87f0e418
LP		 2166static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2167 Service *s = SERVICE(u);
034c6ed7 2168 bool success;
5cb5a6ff
LP		 2169
2170 assert(s);
034c6ed7
LP		 2171 assert(pid >= 0);
2172
cb8a8f78 2173 success = is_clean_exit(code, status);
034c6ed7
LP		 2174 s->failure = s->failure || !success;
2175
2176 if (s->main_pid == pid) {
2177
b58b4116 2178 exec_status_exit(&s->main_exec_status, pid, code, status);
034c6ed7
LP		 2179 s->main_pid = 0;
2180
8c47c732 2181 if (s->type != SERVICE_FORKING) {
034c6ed7
LP		 2182 assert(s->exec_command[SERVICE_EXEC_START]);
2183 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
2184 }
2185
9e2f7c11 2186 log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
034c6ed7
LP		 2187
2188 /* The service exited, so the service is officially
2189 * gone. */
2190
2191 switch (s->state) {
2192
2193 case SERVICE_START_POST:
2194 case SERVICE_RELOAD:
2195 case SERVICE_STOP:
2196 /* Need to wait until the operation is
2197 * done */
2198 break;
2199
7d55e835 2200 case SERVICE_START:
c4653a4d
LP		 2201 if (s->type == SERVICE_FINISH) {
2202 /* This was our main goal, so let's go on */
2203 if (success)
2204 service_enter_start_post(s);
2205 else
2206 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2207 break;
2208 } else {
8c47c732 2209 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2210
c4653a4d
LP		 2211 /* Fall through */
2212 }
7d55e835 2213
034c6ed7 2214 case SERVICE_RUNNING:
80876c20 2215 service_enter_running(s, success);
034c6ed7
LP		 2216 break;
2217
2218 case SERVICE_STOP_SIGTERM:
2219 case SERVICE_STOP_SIGKILL:
2220
2221 if (!control_pid_good(s))
2222 service_enter_stop_post(s, success);
5cb5a6ff 2223
034c6ed7
LP		 2224 /* If there is still a control process, wait for that first */
2225 break;
5cb5a6ff 2226
034c6ed7
LP		 2227 default:
2228 assert_not_reached("Uh, main process died at wrong time.");
2229 }
5cb5a6ff 2230
034c6ed7 2231 } else if (s->control_pid == pid) {
034c6ed7 2232
a16e1123 2233 if (s->control_command)
b58b4116 2234 exec_status_exit(&s->control_command->exec_status, pid, code, status);
a16e1123 2235
034c6ed7
LP		 2236 s->control_pid = 0;
2237
9e2f7c11 2238 log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
034c6ed7
LP		 2239
2240 /* If we are shutting things down anyway we
2241 * don't care about failing commands. */
2242
a16e1123 2243 if (s->control_command && s->control_command->command_next && success) {
034c6ed7
LP		 2244
2245 /* There is another command to *
2246 * execute, so let's do that. */
2247
9e2f7c11 2248 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
034c6ed7
LP		 2249 service_run_next(s, success);
2250
80876c20 2251 } else {
034c6ed7
LP		 2252 /* No further commands for this step, so let's
2253 * figure out what to do next */
2254
a16e1123
LP		 2255 s->control_command = NULL;
2256 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2257
9e2f7c11 2258 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2259
034c6ed7
LP		 2260 switch (s->state) {
2261
2262 case SERVICE_START_PRE:
2263 if (success)
2264 service_enter_start(s);
2265 else
80876c20 2266 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2267 break;
2268
2269 case SERVICE_START:
2270 assert(s->type == SERVICE_FORKING);
2271
2272 /* Let's try to load the pid
2273 * file here if we can. We
2274 * ignore the return value,
2275 * since the PID file might
2276 * actually be created by a
2277 * START_POST script */
2278
2279 if (success) {
2280 if (s->pid_file)
2281 service_load_pid_file(s);
2282
2283 service_enter_start_post(s);
2284 } else
80876c20 2285 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2286
2287 break;
2288
2289 case SERVICE_START_POST:
2290 if (success && s->pid_file && !s->main_pid_known) {
2291 int r;
2292
2293 /* Hmm, let's see if we can
2294 * load the pid now after the
2295 * start-post scripts got
2296 * executed. */
2297
2298 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2299 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2300 }
2301
2302 /* Fall through */
2303
2304 case SERVICE_RELOAD:
80876c20
LP		 2305 if (success)
2306 service_enter_running(s, true);
2307 else
034c6ed7
LP		 2308 service_enter_stop(s, false);
2309
2310 break;
2311
2312 case SERVICE_STOP:
80876c20 2313 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2314 break;
2315
2316 case SERVICE_STOP_SIGTERM:
2317 case SERVICE_STOP_SIGKILL:
2318 if (main_pid_good(s) <= 0)
2319 service_enter_stop_post(s, success);
2320
2321 /* If there is still a service
2322 * process around, wait until
2323 * that one quit, too */
2324 break;
2325
2326 case SERVICE_STOP_POST:
2327 case SERVICE_FINAL_SIGTERM:
2328 case SERVICE_FINAL_SIGKILL:
2329 service_enter_dead(s, success, true);
2330 break;
2331
2332 default:
2333 assert_not_reached("Uh, control process died at wrong time.");
2334 }
2335 }
8c47c732 2336 }
034c6ed7
LP		 2337}
2338
acbb0225 2339static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2340 Service *s = SERVICE(u);
034c6ed7
LP		 2341
2342 assert(s);
2343 assert(elapsed == 1);
2344
acbb0225 2345 assert(w == &s->timer_watch);
034c6ed7
LP		 2346
2347 switch (s->state) {
2348
2349 case SERVICE_START_PRE:
2350 case SERVICE_START:
9e2f7c11 2351 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2352 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2353 break;
2354
034c6ed7
LP		 2355 case SERVICE_START_POST:
2356 case SERVICE_RELOAD:
9e2f7c11 2357 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2358 service_enter_stop(s, false);
2359 break;
2360
2361 case SERVICE_STOP:
9e2f7c11 2362 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2363 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2364 break;
2365
2366 case SERVICE_STOP_SIGTERM:
9e2f7c11 2367 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2368 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2369 break;
2370
2371 case SERVICE_STOP_SIGKILL:
2372 /* Uh, wie sent a SIGKILL and it is still not gone?
2373 * Must be something we cannot kill, so let's just be
2374 * weirded out and continue */
2375
9e2f7c11 2376 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2377 service_enter_stop_post(s, false);
2378 break;
2379
2380 case SERVICE_STOP_POST:
9e2f7c11 2381 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2382 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2383 break;
2384
2385 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2386 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2387 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2388 break;
2389
2390 case SERVICE_FINAL_SIGKILL:
18c78fb1 2391 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
034c6ed7
LP		 2392 service_enter_dead(s, false, true);
2393 break;
2394
2395 case SERVICE_AUTO_RESTART:
54165a39 2396 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2397 service_enter_restart(s);
2398 break;
2399
2400 default:
2401 assert_not_reached("Timeout at wrong time.");
2402 }
5cb5a6ff
LP		 2403}
2404
8e274523
LP		 2405static void service_cgroup_notify_event(Unit *u) {
2406 Service *s = SERVICE(u);
2407
2408 assert(u);
2409
9e2f7c11 2410 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2411
2412 switch (s->state) {
2413
2414 /* Waiting for SIGCHLD is usually more interesting,
2415 * because it includes return codes/signals. Which is
2416 * why we ignore the cgroup events for most cases,
2417 * except when we don't know pid which to expect the
2418 * SIGCHLD for. */
2419
2420 case SERVICE_RUNNING:
80876c20 2421 service_enter_running(s, true);
8e274523
LP		 2422 break;
2423
2424 default:
2425 ;
2426 }
2427}
2428
c952c6ec 2429static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2430 Service *s = SERVICE(u);
2431 const char *e;
2432
2433 assert(u);
2434
c952c6ec
LP		 2435 if (s->notify_access == NOTIFY_NONE) {
2436 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2437 u->meta.id, (unsigned long) pid);
2438 return;
2439 }
2440
2441 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2442 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2443 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2444 return;
2445 }
2446
8c47c732
LP		 2447 log_debug("%s: Got message", u->meta.id);
2448
2449 /* Interpret MAINPID= */
2450 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2451 (s->state == SERVICE_START ||
2452 s->state == SERVICE_START_POST ||
2453 s->state == SERVICE_RUNNING ||
2454 s->state == SERVICE_RELOAD)) {
8c47c732 2455
5925dd3c 2456 if (parse_pid(e + 8, &pid) < 0)
8c47c732
LP		 2457 log_warning("Failed to parse %s", e);
2458 else {
2459 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2460 service_set_main_pid(s, pid);
8c47c732
LP		 2461 }
2462 }
2463
2464 /* Interpret READY= */
2465 if (s->type == SERVICE_NOTIFY &&
2466 s->state == SERVICE_START &&
2467 strv_find(tags, "READY=1")) {
2468 log_debug("%s: got READY=1", u->meta.id);
2469
2470 service_enter_start_post(s);
2471 }
2472
2473 /* Interpret STATUS= */
2474 if ((e = strv_find_prefix(tags, "STATUS="))) {
2475 char *t;
2476
2477 if (!(t = strdup(e+7))) {
2478 log_error("Failed to allocate string.");
2479 return;
2480 }
2481
2482 log_debug("%s: got %s", u->meta.id, e);
2483
2484 free(s->status_text);
2485 s->status_text = t;
2486 }
2487}
2488
2c4104f0 2489static int service_enumerate(Manager *m) {
2c4104f0
LP		 2490 char **p;
2491 unsigned i;
2492 DIR *d = NULL;
2493 char *path = NULL, *fpath = NULL, *name = NULL;
2494 int r;
2495
2496 assert(m);
2497
84e3543e 2498 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2499 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2500 struct dirent *de;
2501
2502 free(path);
2503 path = NULL;
09cd1ab1 2504 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2505 r = -ENOMEM;
2506 goto finish;
2507 }
2508
2509 if (d)
2510 closedir(d);
2511
2512 if (!(d = opendir(path))) {
2513 if (errno != ENOENT)
2514 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2515
2516 continue;
2517 }
2518
2519 while ((de = readdir(d))) {
6542952f 2520 Unit *service;
db06e3b6 2521 int a, b;
2c4104f0
LP		 2522
2523 if (ignore_file(de->d_name))
2524 continue;
2525
2526 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2527 continue;
2528
2529 if (strlen(de->d_name) < 4)
2530 continue;
2531
db06e3b6
LP		 2532 a = undecchar(de->d_name[1]);
2533 b = undecchar(de->d_name[2]);
2534
2535 if (a < 0 || b < 0)
2536 continue;
2537
2c4104f0
LP		 2538 free(fpath);
2539 fpath = NULL;
09cd1ab1 2540 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2541 r = -ENOMEM;
2542 goto finish;
2543 }
2544
2545 if (access(fpath, X_OK) < 0) {
2546
2547 if (errno != ENOENT)
2548 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2549
2550 continue;
2551 }
2552
2553 free(name);
b7ccee3c 2554 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2555 r = -ENOMEM;
2556 goto finish;
2557 }
2558
398ef8ba 2559 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2560 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2561 continue;
2562 }
2c4104f0 2563
09cd1ab1 2564 if (de->d_name[0] == 'S' &&
fc5df99e 2565 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
fbe9f3a9
LP		 2566 SERVICE(service)->sysv_start_priority =
2567 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6
LP		 2568
2569 manager_dispatch_load_queue(m);
2570 service = unit_follow_merge(service);
2571
f8820b62
LP		 2572 /* If this is a native service, rely
2573 * on native ways to pull in a
2574 * service, don't pull it in via sysv
2575 * rcN.d links. */
2576 if (service->meta.fragment_path)
2577 continue;
2578
2c4104f0 2579 if (de->d_name[0] == 'S') {
2c4104f0 2580
2c966c03 2581 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2c4104f0 2582 goto finish;
23a177ef 2583
fc5df99e
LP		 2584 } else if (de->d_name[0] == 'K' &&
2585 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2586 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2587
23a177ef
LP		 2588 /* We honour K links only for
2589 * halt/reboot. For the normal
2590 * runlevels we assume the
2591 * stop jobs will be
2592 * implicitly added by the
6542952f
LP		 2593 * core logic. Also, we don't
2594 * really distuingish here
2595 * between the runlevels 0 and
2596 * 6 and just add them to the
fc5df99e
LP		 2597 * special shutdown target. On
2598 * SUSE the boot.d/ runlevel
2599 * is also used for shutdown,
2600 * so we add links for that
2601 * too to the shutdown
2602 * target.*/
6542952f 2603
2c966c03 2604 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2c4104f0
LP		 2605 goto finish;
2606 }
2607 }
2608 }
2609
2610 r = 0;
2611
2612finish:
2613 free(path);
2614 free(fpath);
2615 free(name);
fbe9f3a9
LP		 2616
2617 if (d)
2618 closedir(d);
2c4104f0
LP		 2619
2620 return r;
2621}
2622
05e343b7
LP		 2623static void service_bus_name_owner_change(
2624 Unit *u,
2625 const char *name,
2626 const char *old_owner,
2627 const char *new_owner) {
2628
2629 Service *s = SERVICE(u);
2630
2631 assert(s);
2632 assert(name);
2633
2634 assert(streq(s->bus_name, name));
2635 assert(old_owner || new_owner);
2636
2637 if (old_owner && new_owner)
2638 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2639 else if (old_owner)
2640 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2641 else
2642 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2643
2644 s->bus_name_good = !!new_owner;
2645
2646 if (s->type == SERVICE_DBUS) {
2647
2648 /* service_enter_running() will figure out what to
2649 * do */
2650 if (s->state == SERVICE_RUNNING)
2651 service_enter_running(s, true);
2652 else if (s->state == SERVICE_START && new_owner)
2653 service_enter_start_post(s);
2654
2655 } else if (new_owner &&
2656 s->main_pid <= 0 &&
2657 (s->state == SERVICE_START ||
2658 s->state == SERVICE_START_POST ||
2659 s->state == SERVICE_RUNNING ||
2660 s->state == SERVICE_RELOAD)) {
2661
2662 /* Try to acquire PID from bus service */
2663 log_debug("Trying to acquire PID from D-Bus name...");
2664
2665 bus_query_pid(u->meta.manager, name);
2666 }
2667}
2668
2669static void service_bus_query_pid_done(
2670 Unit *u,
2671 const char *name,
2672 pid_t pid) {
2673
2674 Service *s = SERVICE(u);
2675
2676 assert(s);
2677 assert(name);
2678
2679 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2680
2681 if (s->main_pid <= 0 &&
2682 (s->state == SERVICE_START ||
2683 s->state == SERVICE_START_POST ||
2684 s->state == SERVICE_RUNNING ||
2685 s->state == SERVICE_RELOAD))
5925dd3c 2686 service_set_main_pid(s, pid);
05e343b7
LP		 2687}
2688
6cf6bbc2 2689int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 2690 assert(s);
2691 assert(fd >= 0);
2692
2693 /* This is called by the socket code when instantiating a new
2694 * service for a stream socket and the socket needs to be
2695 * configured. */
2696
4cd1fbcc 2697 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 2698 return -EINVAL;
2699
2700 if (s->socket_fd >= 0)
2701 return -EBUSY;
2702
2703 if (s->state != SERVICE_DEAD)
2704 return -EAGAIN;
2705
2706 s->socket_fd = fd;
701cc384 2707 s->got_socket_fd = true;
6cf6bbc2
LP		 2708 s->socket = sock;
2709
4f2d528d
LP		 2710 return 0;
2711}
2712
94f04347
LP		 2713static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2714 [SERVICE_DEAD] = "dead",
2715 [SERVICE_START_PRE] = "start-pre",
2716 [SERVICE_START] = "start",
2717 [SERVICE_START_POST] = "start-post",
2718 [SERVICE_RUNNING] = "running",
80876c20 2719 [SERVICE_EXITED] = "exited",
94f04347
LP		 2720 [SERVICE_RELOAD] = "reload",
2721 [SERVICE_STOP] = "stop",
2722 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2723 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2724 [SERVICE_STOP_POST] = "stop-post",
2725 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2726 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
18c78fb1 2727 [SERVICE_MAINTENANCE] = "maintenance",
94f04347
LP		 2728 [SERVICE_AUTO_RESTART] = "auto-restart",
2729};
2730
2731DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2732
2733static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2734 [SERVICE_ONCE] = "once",
2735 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 2736 [SERVICE_RESTART_ALWAYS] = "restart-always",
94f04347
LP		 2737};
2738
2739DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2740
2741static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 2742 [SERVICE_SIMPLE] = "simple",
0d624a78 2743 [SERVICE_FORKING] = "forking",
05e343b7 2744 [SERVICE_FINISH] = "finish",
8c47c732
LP		 2745 [SERVICE_DBUS] = "dbus",
2746 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 2747};
2748
2749DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2750
e537352b 2751static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 2752 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2753 [SERVICE_EXEC_START] = "ExecStart",
2754 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2755 [SERVICE_EXEC_RELOAD] = "ExecReload",
2756 [SERVICE_EXEC_STOP] = "ExecStop",
2757 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2758};
2759
2760DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2761
c952c6ec
LP		 2762static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
2763 [NOTIFY_NONE] = "none",
2764 [NOTIFY_MAIN] = "main",
2765 [NOTIFY_ALL] = "all"
2766};
2767
2768DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
2769
87f0e418 2770const UnitVTable service_vtable = {
5cb5a6ff 2771 .suffix = ".service",
9e58ff9c 2772 .show_status = true,
5cb5a6ff 2773
034c6ed7
LP		 2774 .init = service_init,
2775 .done = service_done,
a16e1123
LP		 2776 .load = service_load,
2777
2778 .coldplug = service_coldplug,
034c6ed7 2779
5cb5a6ff
LP		 2780 .dump = service_dump,
2781
2782 .start = service_start,
2783 .stop = service_stop,
2784 .reload = service_reload,
2785
034c6ed7
LP		 2786 .can_reload = service_can_reload,
2787
a16e1123
LP		 2788 .serialize = service_serialize,
2789 .deserialize_item = service_deserialize_item,
2790
5cb5a6ff 2791 .active_state = service_active_state,
10a94420 2792 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 2793
701cc384
LP		 2794 .check_gc = service_check_gc,
2795 .check_snapshot = service_check_snapshot,
2796
034c6ed7
LP		 2797 .sigchld_event = service_sigchld_event,
2798 .timer_event = service_timer_event,
2c4104f0 2799
8e274523 2800 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 2801 .notify_message = service_notify_message,
8e274523 2802
05e343b7
LP		 2803 .bus_name_owner_change = service_bus_name_owner_change,
2804 .bus_query_pid_done = service_bus_query_pid_done,
2805
4139c1b2
LP		 2806 .bus_message_handler = bus_service_message_handler,
2807
2c4104f0 2808 .enumerate = service_enumerate
5cb5a6ff 2809};
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