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