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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
2c4104f0
LP		 37
38#define COMMENTS "#;\n"
39#define NEWLINES "\n\r"
034c6ed7 40
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[] = {
9d25f5ed 52 /* Standard SysV runlevels for start-up */
514f4ef5 53 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 54 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
55 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
56 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
57 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 58
d4054675 59#ifdef TARGET_SUSE
cfe243e3 60 /* SUSE style boot.d */
fc5df99e 61 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 62#endif
fbe9f3a9 63
d4054675 64#ifdef TARGET_DEBIAN
fbe9f3a9 65 /* Debian style rcS.d */
fc5df99e 66 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 67#endif
9d25f5ed
LP		 68
69 /* Standard SysV runlevels for shutdown */
70 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
71 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
72
73 /* Note that the order here matters, as we read the
74 directories in this order, and we want to make sure that
75 sysv_start_priority is known when we first load the
76 unit. And that value we only know from S links. Hence
77 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 78};
79
09cd1ab1 80#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 81/* #define RUNLEVELS_DOWN "06" */
82/* #define RUNLEVELS_BOOT "bBsS" */
09cd1ab1 83
acbb0225 84static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 85 [SERVICE_DEAD] = UNIT_INACTIVE,
86 [SERVICE_START_PRE] = UNIT_ACTIVATING,
87 [SERVICE_START] = UNIT_ACTIVATING,
88 [SERVICE_START_POST] = UNIT_ACTIVATING,
89 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 90 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 91 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 92 [SERVICE_STOP] = UNIT_DEACTIVATING,
93 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
94 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
95 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
96 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
97 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 98 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 99 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 100};
5cb5a6ff 101
a16e1123
LP		 102static void service_init(Unit *u) {
103 Service *s = SERVICE(u);
104
105 assert(u);
106 assert(u->meta.load_state == UNIT_STUB);
107
108 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
109 s->restart_usec = DEFAULT_RESTART_USEC;
110 s->timer_watch.type = WATCH_INVALID;
111 s->sysv_start_priority = -1;
112 s->socket_fd = -1;
113
114 exec_context_init(&s->exec_context);
115
116 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
117
118 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
119}
120
5e94833f
LP		 121static void service_unwatch_control_pid(Service *s) {
122 assert(s);
123
124 if (s->control_pid <= 0)
125 return;
126
127 unit_unwatch_pid(UNIT(s), s->control_pid);
128 s->control_pid = 0;
129}
130
131static void service_unwatch_main_pid(Service *s) {
132 assert(s);
133
134 if (s->main_pid <= 0)
135 return;
136
137 unit_unwatch_pid(UNIT(s), s->main_pid);
138 s->main_pid = 0;
139}
140
5925dd3c 141static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 142 pid_t ppid;
143
5925dd3c
LP		 144 assert(s);
145
146 if (pid <= 1)
147 return -EINVAL;
148
149 if (pid == getpid())
150 return -EINVAL;
151
e55224ca
LP		 152 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
153 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
154 s->meta.id, (unsigned long) pid);
155
5925dd3c
LP		 156 s->main_pid = pid;
157 s->main_pid_known = true;
158
b58b4116
LP		 159 exec_status_start(&s->main_exec_status, pid);
160
5925dd3c
LP		 161 return 0;
162}
163
4f2d528d
LP		 164static void service_close_socket_fd(Service *s) {
165 assert(s);
166
167 if (s->socket_fd < 0)
168 return;
169
170 close_nointr_nofail(s->socket_fd);
171 s->socket_fd = -1;
172}
173
6cf6bbc2
LP		 174static void service_connection_unref(Service *s) {
175 assert(s);
176
177 if (!s->socket)
178 return;
179
180 socket_connection_unref(s->socket);
181 s->socket = NULL;
182}
183
87f0e418
LP		 184static void service_done(Unit *u) {
185 Service *s = SERVICE(u);
44d8db9e
LP		 186
187 assert(s);
188
189 free(s->pid_file);
190 s->pid_file = NULL;
191
2c4104f0
LP		 192 free(s->sysv_path);
193 s->sysv_path = NULL;
194
8309400a
LP		 195 free(s->sysv_runlevels);
196 s->sysv_runlevels = NULL;
197
8c47c732
LP		 198 free(s->status_text);
199 s->status_text = NULL;
200
44d8db9e 201 exec_context_done(&s->exec_context);
e537352b 202 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 203 s->control_command = NULL;
204
205 /* This will leak a process, but at least no memory or any of
206 * our resources */
5e94833f
LP		 207 service_unwatch_main_pid(s);
208 service_unwatch_control_pid(s);
44d8db9e 209
05e343b7
LP		 210 if (s->bus_name) {
211 unit_unwatch_bus_name(UNIT(u), s->bus_name);
212 free(s->bus_name);
213 s->bus_name = NULL;
214 }
215
4f2d528d 216 service_close_socket_fd(s);
6cf6bbc2 217 service_connection_unref(s);
4f2d528d 218
acbb0225 219 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 220}
221
b7ccee3c
LP		 222static char *sysv_translate_name(const char *name) {
223 char *r;
224
225 if (!(r = new(char, strlen(name) + sizeof(".service"))))
226 return NULL;
227
228 if (startswith(name, "boot."))
229 /* Drop SuSE-style boot. prefix */
230 strcpy(stpcpy(r, name + 5), ".service");
231 else if (endswith(name, ".sh"))
232 /* Drop Debian-style .sh suffix */
233 strcpy(stpcpy(r, name) - 3, ".service");
980900c1
TG		 234#ifdef TARGET_ARCH
235 else if (startswith(name, "@"))
236 /* Drop Arch-style background prefix */
237 strcpy(stpcpy(r, name + 1), ".service");
238#endif
b7ccee3c
LP		 239 else
240 /* Normal init scripts */
241 strcpy(stpcpy(r, name), ".service");
242
243 return r;
244}
245
246static int sysv_translate_facility(const char *name, char **_r) {
2c4104f0
LP		 247
248 static const char * const table[] = {
6464aa08 249 /* LSB defined facilities */
2c4104f0
LP		 250 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
251 "$network", SPECIAL_NETWORK_TARGET,
252 "$named", SPECIAL_NSS_LOOKUP_TARGET,
253 "$portmap", SPECIAL_RPCBIND_TARGET,
254 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
255 "$syslog", SPECIAL_SYSLOG_TARGET,
6464aa08
LP		 256 "$time", SPECIAL_RTC_SET_TARGET,
257
258 /* Debian extensions */
3177a49c 259#ifdef TARGET_DEBIAN
6464aa08 260 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 261#endif
6464aa08 262 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c
LP		 263 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
264
265#ifdef TARGET_FEDORA
266 /* Fedora extensions, lacking the $ prefix */
267 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
4f7dcad3
LP		 268 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
269 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 270#endif
2c4104f0
LP		 271 };
272
273 unsigned i;
274 char *r;
275
276 for (i = 0; i < ELEMENTSOF(table); i += 2)
277 if (streq(table[i], name)) {
278 if (!(r = strdup(table[i+1])))
279 return -ENOMEM;
280
281 goto finish;
282 }
283
284 if (*name == '$')
32159d3a
LP		 285 r = unit_name_build(name+1, NULL, ".target");
286 else
287 r = sysv_translate_name(name);
2c4104f0 288
32159d3a 289 if (!r)
2c4104f0
LP		 290 return -ENOMEM;
291
292finish:
293
294 if (_r)
295 *_r = r;
296
297 return 1;
298}
299
56d748b4 300static int sysv_fix_order(Service *s) {
2c4104f0
LP		 301 Meta *other;
302 int r;
303
304 assert(s);
305
306 if (s->sysv_start_priority < 0)
307 return 0;
308
23a177ef
LP		 309 /* For each pair of services where at least one lacks a LSB
310 * header, we use the start priority value to order things. */
2c4104f0 311
4cd1fbcc 312 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 313 Service *t;
314 UnitDependency d;
eeaafddc 315 bool special_s, special_t;
2c4104f0
LP		 316
317 t = (Service*) other;
318
319 if (s == t)
320 continue;
321
322 if (t->sysv_start_priority < 0)
323 continue;
324
51a1a79d
LP		 325 /* If both units have modern headers we don't care
326 * about the priorities */
f21781d5
LP		 327 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
328 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 329 continue;
330
eeaafddc
LP		 331 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
332 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
333
334 if (special_t && !special_s)
335 d = UNIT_AFTER;
336 else if (special_s && !special_t)
337 d = UNIT_BEFORE;
338 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 339 d = UNIT_AFTER;
340 else if (t->sysv_start_priority > s->sysv_start_priority)
341 d = UNIT_BEFORE;
342 else
343 continue;
344
345 /* FIXME: Maybe we should compare the name here lexicographically? */
346
701cc384 347 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 348 return r;
349 }
350
351 return 0;
352}
353
354static ExecCommand *exec_command_new(const char *path, const char *arg1) {
355 ExecCommand *c;
356
357 if (!(c = new0(ExecCommand, 1)))
358 return NULL;
359
360 if (!(c->path = strdup(path))) {
361 free(c);
362 return NULL;
363 }
364
365 if (!(c->argv = strv_new(path, arg1, NULL))) {
366 free(c->path);
367 free(c);
368 return NULL;
369 }
370
371 return c;
372}
373
374static int sysv_exec_commands(Service *s) {
375 ExecCommand *c;
376
377 assert(s);
378 assert(s->sysv_path);
379
380 if (!(c = exec_command_new(s->sysv_path, "start")))
381 return -ENOMEM;
382 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
383
384 if (!(c = exec_command_new(s->sysv_path, "stop")))
385 return -ENOMEM;
386 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
387
388 if (!(c = exec_command_new(s->sysv_path, "reload")))
389 return -ENOMEM;
390 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
391
392 return 0;
393}
394
e537352b 395static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 396 FILE *f;
397 Unit *u;
398 unsigned line = 0;
399 int r;
400 enum {
401 NORMAL,
402 DESCRIPTION,
403 LSB,
404 LSB_DESCRIPTION
405 } state = NORMAL;
23a177ef
LP		 406
407 assert(s);
408 assert(path);
2c4104f0
LP		 409
410 u = UNIT(s);
411
412 if (!(f = fopen(path, "re"))) {
413 r = errno == ENOENT ? 0 : -errno;
414 goto finish;
415 }
416
2c4104f0
LP		 417 free(s->sysv_path);
418 if (!(s->sysv_path = strdup(path))) {
419 r = -ENOMEM;
420 goto finish;
421 }
422
423 while (!feof(f)) {
424 char l[LINE_MAX], *t;
425
426 if (!fgets(l, sizeof(l), f)) {
427 if (feof(f))
428 break;
429
430 r = -errno;
431 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
432 goto finish;
433 }
434
435 line++;
436
437 t = strstrip(l);
438 if (*t != '#')
439 continue;
440
441 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
442 state = LSB;
23a177ef 443 s->sysv_has_lsb = true;
2c4104f0
LP		 444 continue;
445 }
446
447 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
448 state = NORMAL;
449 continue;
450 }
451
452 t++;
453 t += strspn(t, WHITESPACE);
454
455 if (state == NORMAL) {
456
457 /* Try to parse Red Hat style chkconfig headers */
458
c2b35af6 459 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 460 int start_priority;
8309400a 461 char runlevels[16], *k;
2c4104f0
LP		 462
463 state = NORMAL;
464
8309400a
LP		 465 if (sscanf(t+10, "%15s %i %*i",
466 runlevels,
467 &start_priority) != 2) {
2c4104f0
LP		 468
469 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
470 continue;
471 }
472
fbe9f3a9
LP		 473 /* A start priority gathered from the
474 * symlink farms is preferred over the
475 * data from the LSB header. */
8309400a 476 if (start_priority < 0 || start_priority > 99)
2c4104f0 477 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 478 else if (s->sysv_start_priority < 0)
8309400a
LP		 479 s->sysv_start_priority = start_priority;
480
481 char_array_0(runlevels);
482 k = delete_chars(runlevels, WHITESPACE "-");
483
484 if (k[0]) {
485 char *d;
486
487 if (!(d = strdup(k))) {
488 r = -ENOMEM;
489 goto finish;
490 }
491
492 free(s->sysv_runlevels);
493 s->sysv_runlevels = d;
2c4104f0
LP		 494 }
495
ed4c1cc6
LP		 496 } else if (startswith_no_case(t, "description:") &&
497 !u->meta.description) {
2c4104f0
LP		 498
499 size_t k = strlen(t);
500 char *d;
501
502 if (t[k-1] == '\\') {
503 state = DESCRIPTION;
504 t[k-1] = 0;
505 }
506
46948365 507 if (!(d = strappend("LSB: ", strstrip(t+12)))) {
2c4104f0
LP		 508 r = -ENOMEM;
509 goto finish;
510 }
511
512 free(u->meta.description);
513 u->meta.description = d;
514
c2b35af6 515 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 516
517 char *fn;
518
519 state = NORMAL;
520
521 fn = strstrip(t+8);
522 if (!path_is_absolute(fn)) {
523 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
524 continue;
525 }
526
527 if (!(fn = strdup(fn))) {
528 r = -ENOMEM;
529 goto finish;
530 }
531
532 free(s->pid_file);
533 s->pid_file = fn;
534 }
535
536 } else if (state == DESCRIPTION) {
537
538 /* Try to parse Red Hat style description
539 * continuation */
540
541 size_t k = strlen(t);
542 char *d;
543
544 if (t[k-1] == '\\')
545 t[k-1] = 0;
546 else
547 state = NORMAL;
548
549 assert(u->meta.description);
550 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
551 r = -ENOMEM;
552 goto finish;
553 }
554
555 free(u->meta.description);
556 u->meta.description = d;
557
558 } else if (state == LSB || state == LSB_DESCRIPTION) {
559
c2b35af6 560 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 561 char *i, *w;
562 size_t z;
563
564 state = LSB;
565
f60f22df 566 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 567 char *n, *m;
568
569 if (!(n = strndup(w, z))) {
570 r = -ENOMEM;
571 goto finish;
572 }
573
b7ccee3c 574 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 575 free(n);
576
577 if (r < 0)
578 goto finish;
579
580 if (r == 0)
581 continue;
582
bd77d0fc
LP		 583 if (unit_name_to_type(m) == UNIT_SERVICE)
584 r = unit_add_name(u, m);
c68364b7
LP		 585 else {
586 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
587
588 if (s->sysv_enabled) {
589 int k;
590
591 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
592 r = k;
593 }
594 }
bd77d0fc 595
2c4104f0 596 if (r < 0)
43a37549 597 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 598
599 free(m);
2c4104f0
LP		 600 }
601
c2b35af6
LP		 602 } else if (startswith_no_case(t, "Required-Start:") ||
603 startswith_no_case(t, "Should-Start:") ||
604 startswith_no_case(t, "X-Start-Before:") ||
605 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 606 char *i, *w;
607 size_t z;
608
609 state = LSB;
610
f60f22df 611 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 612 char *n, *m;
613
614 if (!(n = strndup(w, z))) {
615 r = -ENOMEM;
616 goto finish;
617 }
618
b7ccee3c 619 r = sysv_translate_facility(n, &m);
2c4104f0
LP		 620 free(n);
621
622 if (r < 0)
623 goto finish;
624
625 if (r == 0)
626 continue;
627
c2b35af6 628 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 629
630 if (r < 0)
43a37549 631 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 632
633 free(m);
2c4104f0 634 }
c2b35af6 635 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 636 char *k, *d;
637
638 state = LSB;
639
640 k = delete_chars(t+14, WHITESPACE "-");
641
642 if (k[0] != 0) {
643 if (!(d = strdup(k))) {
644 r = -ENOMEM;
645 goto finish;
646 }
647
648 free(s->sysv_runlevels);
649 s->sysv_runlevels = d;
650 }
2c4104f0 651
ed4c1cc6
LP		 652 } else if (startswith_no_case(t, "Description:") &&
653 !u->meta.description) {
2c4104f0
LP		 654 char *d;
655
ed4c1cc6
LP		 656 /* We use the long description only if
657 * no short description is set. */
658
2c4104f0
LP		 659 state = LSB_DESCRIPTION;
660
46948365 661 if (!(d = strappend("LSB: ", strstrip(t+12)))) {
2c4104f0
LP		 662 r = -ENOMEM;
663 goto finish;
664 }
665
666 free(u->meta.description);
667 u->meta.description = d;
668
ed4c1cc6 669 } else if (startswith_no_case(t, "Short-Description:")) {
2c4104f0
LP		 670 char *d;
671
2c4104f0
LP		 672 state = LSB;
673
46948365 674 if (!(d = strappend("LSB: ", strstrip(t+18)))) {
2c4104f0
LP		 675 r = -ENOMEM;
676 goto finish;
677 }
678
7740296d 679 free(u->meta.description);
2c4104f0
LP		 680 u->meta.description = d;
681
723c83fd
LP		 682 } else if (startswith_no_case(t, "X-Interactive:")) {
683 int b;
684
685 if ((b = parse_boolean(strstrip(t+14))) < 0) {
686 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
687 continue;
688 }
689
690 if (b)
691 s->exec_context.std_input = EXEC_INPUT_TTY;
692 else
693 s->exec_context.std_input = EXEC_INPUT_NULL;
694
2c4104f0
LP		 695 } else if (state == LSB_DESCRIPTION) {
696
697 if (startswith(l, "#\t") || startswith(l, "# ")) {
698 char *d;
699
700 assert(u->meta.description);
701 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
702 r = -ENOMEM;
703 goto finish;
704 }
705
706 free(u->meta.description);
707 u->meta.description = d;
708 } else
709 state = LSB;
710 }
711 }
712 }
713
2c4104f0
LP		 714 if ((r = sysv_exec_commands(s)) < 0)
715 goto finish;
716
a40eb732 717 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 718 /* If there a runlevels configured for this service
719 * but none of the standard ones, then we assume this
720 * is some special kind of service (which might be
721 * needed for early boot) and don't create any links
722 * to it. */
723
a40eb732 724 s->meta.default_dependencies = false;
09cd1ab1 725
09cd1ab1
LP		 726 /* Don't timeout special services during boot (like fsck) */
727 s->timeout_usec = 0;
a40eb732 728 }
0fd030be 729
80876c20 730 /* Special setting for all SysV services */
1f48cf56 731 s->type = SERVICE_FORKING;
02ee865a 732 s->remain_after_exit = true;
1f48cf56 733 s->restart = SERVICE_ONCE;
8a2b3c09
LP		 734 s->exec_context.std_output =
735 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
736 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
2e22afe9 737 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 738
e537352b 739 u->meta.load_state = UNIT_LOADED;
23a177ef 740 r = 0;
2c4104f0
LP		 741
742finish:
743
744 if (f)
745 fclose(f);
746
747 return r;
748}
749
e537352b 750static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 751 char **p;
752
753 assert(s);
754 assert(name);
755
d017c6ca
LP		 756 /* For SysV services we strip the boot. or .sh
757 * prefixes/suffixes. */
758 if (startswith(name, "boot.") ||
759 endswith(name, ".sh.service"))
760 return -ENOENT;
761
4cd1fbcc 762 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 763 char *path;
764 int r;
765
766 if (asprintf(&path, "%s/%s", *p, name) < 0)
767 return -ENOMEM;
768
769 assert(endswith(path, ".service"));
770 path[strlen(path)-8] = 0;
771
e537352b 772 r = service_load_sysv_path(s, path);
fbe9f3a9 773
4cd1fbcc 774 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 775 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 776 strcat(path, ".sh");
777 r = service_load_sysv_path(s, path);
778 }
779
2c4104f0
LP		 780 free(path);
781
4cd1fbcc 782 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 783 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 784
785 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
786 return -ENOMEM;
787
788 path[strlen(path)-8] = 0;
789 r = service_load_sysv_path(s, path);
790 free(path);
791 }
792
23a177ef 793 if (r < 0)
2c4104f0 794 return r;
23a177ef 795
4cd1fbcc 796 if ((s->meta.load_state != UNIT_STUB))
23a177ef 797 break;
2c4104f0
LP		 798 }
799
800 return 0;
801}
802
e537352b 803static int service_load_sysv(Service *s) {
2c4104f0
LP		 804 const char *t;
805 Iterator i;
806 int r;
807
5cb5a6ff
LP		 808 assert(s);
809
810 /* Load service data from SysV init scripts, preferably with
811 * LSB headers ... */
812
4cd1fbcc 813 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 814 return 0;
815
4cd1fbcc 816 if ((t = s->meta.id))
e537352b 817 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 818 return r;
819
4cd1fbcc
LP		 820 if (s->meta.load_state == UNIT_STUB)
821 SET_FOREACH(t, s->meta.names, i) {
822 if (t == s->meta.id)
e537352b
LP		 823 continue;
824
e364ad06 825 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 826 return r;
827
4cd1fbcc 828 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 829 break;
830 }
2c4104f0
LP		 831
832 return 0;
5cb5a6ff
LP		 833}
834
243b1432
LP		 835static int service_verify(Service *s) {
836 assert(s);
837
4cd1fbcc 838 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 839 return 0;
840
841 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 842 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 843 return -EINVAL;
844 }
845
34e9ba66
LP		 846 if (s->type != SERVICE_ONESHOT &&
847 s->exec_command[SERVICE_EXEC_START]->command_next) {
848 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 849 return -EINVAL;
850 }
851
05e343b7 852 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 853 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
854 return -EINVAL;
855 }
856
2e22afe9 857 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 858 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 859 return -EINVAL;
860 }
861
243b1432
LP		 862 return 0;
863}
864
a40eb732
LP		 865static int service_add_default_dependencies(Service *s) {
866 int r;
867
868 assert(s);
869
870 /* Add a number of automatic dependencies useful for the
871 * majority of services. */
872
873 /* First, pull in base system */
874 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
875
876 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
877 return r;
878
879 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
880
881 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
882 return r;
883 }
884
885 /* Second, activate normal shutdown */
69dd2852 886 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 887}
888
e537352b
LP		 889static int service_load(Unit *u) {
890 int r;
891 Service *s = SERVICE(u);
892
893 assert(s);
1e2e8133 894
5cb5a6ff 895 /* Load a .service file */
e537352b 896 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 897 return r;
898
bd77d0fc 899 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 900 if (u->meta.load_state == UNIT_STUB)
901 if ((r = service_load_sysv(s)) < 0)
23a177ef 902 return r;
d46de8a1 903
23a177ef 904 /* Still nothing found? Then let's give up */
e537352b 905 if (u->meta.load_state == UNIT_STUB)
23a177ef 906 return -ENOENT;
034c6ed7 907
23a177ef
LP		 908 /* We were able to load something, then let's add in the
909 * dropin directories. */
910 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 911 return r;
23a177ef
LP		 912
913 /* This is a new unit? Then let's add in some extras */
e537352b 914 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 915 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
916 return r;
917
918 if ((r = unit_add_default_cgroup(u)) < 0)
919 return r;
920
56d748b4 921 if ((r = sysv_fix_order(s)) < 0)
23a177ef 922 return r;
05e343b7 923
ee0dd802 924 if (s->bus_name)
05e343b7 925 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 926 return r;
c952c6ec
LP		 927
928 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
929 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 930
931 if (s->type == SERVICE_DBUS || s->bus_name)
932 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
933 return r;
934
935 if (s->meta.default_dependencies)
936 if ((r = service_add_default_dependencies(s)) < 0)
937 return r;
8e274523
LP		 938 }
939
243b1432 940 return service_verify(s);
034c6ed7
LP		 941}
942
87f0e418 943static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 944
5cb5a6ff 945 ServiceExecCommand c;
87f0e418 946 Service *s = SERVICE(u);
47be870b
LP		 947 const char *prefix2;
948 char *p2;
5cb5a6ff
LP		 949
950 assert(s);
951
47be870b
LP		 952 p2 = strappend(prefix, "\t");
953 prefix2 = p2 ? p2 : prefix;
44d8db9e 954
5cb5a6ff 955 fprintf(f,
81a2b7ce
LP		 956 "%sService State: %s\n"
957 "%sPermissionsStartOnly: %s\n"
8e274523 958 "%sRootDirectoryStartOnly: %s\n"
02ee865a 959 "%sRemainAfterExit: %s\n"
c952c6ec 960 "%sType: %s\n"
2cf3143a 961 "%sRestart: %s\n"
c952c6ec 962 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 963 prefix, service_state_to_string(s->state),
964 prefix, yes_no(s->permissions_start_only),
8e274523 965 prefix, yes_no(s->root_directory_start_only),
02ee865a 966 prefix, yes_no(s->remain_after_exit),
c952c6ec 967 prefix, service_type_to_string(s->type),
2cf3143a 968 prefix, service_restart_to_string(s->restart),
c952c6ec 969 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 970
70123e68
LP		 971 if (s->control_pid > 0)
972 fprintf(f,
bb00e604
LP		 973 "%sControl PID: %lu\n",
974 prefix, (unsigned long) s->control_pid);
70123e68
LP		 975
976 if (s->main_pid > 0)
977 fprintf(f,
bb00e604
LP		 978 "%sMain PID: %lu\n",
979 prefix, (unsigned long) s->main_pid);
70123e68 980
034c6ed7
LP		 981 if (s->pid_file)
982 fprintf(f,
983 "%sPIDFile: %s\n",
984 prefix, s->pid_file);
985
05e343b7
LP		 986 if (s->bus_name)
987 fprintf(f,
988 "%sBusName: %s\n"
989 "%sBus Name Good: %s\n",
990 prefix, s->bus_name,
991 prefix, yes_no(s->bus_name_good));
992
5cb5a6ff
LP		 993 exec_context_dump(&s->exec_context, f, prefix);
994
e537352b 995 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 996
44d8db9e
LP		 997 if (!s->exec_command[c])
998 continue;
999
40d50879 1000 fprintf(f, "%s-> %s:\n",
94f04347 1001 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1002
1003 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1004 }
44d8db9e 1005
2c4104f0
LP		 1006 if (s->sysv_path)
1007 fprintf(f,
23a177ef
LP		 1008 "%sSysV Init Script Path: %s\n"
1009 "%sSysV Init Script has LSB Header: %s\n",
1010 prefix, s->sysv_path,
1011 prefix, yes_no(s->sysv_has_lsb));
2c4104f0
LP		 1012
1013 if (s->sysv_start_priority >= 0)
1014 fprintf(f,
5de6b302
LP		 1015 "%sSysVStartPriority: %i\n"
1016 "%sSysVEnabled: %s\n",
1017 prefix, s->sysv_start_priority,
1018 prefix, yes_no(s->sysv_enabled));
2c4104f0 1019
8309400a
LP		 1020 if (s->sysv_runlevels)
1021 fprintf(f, "%sSysVRunLevels: %s\n",
1022 prefix, s->sysv_runlevels);
23a177ef 1023
8c47c732
LP		 1024 if (s->status_text)
1025 fprintf(f, "%sStatus Text: %s\n",
1026 prefix, s->status_text);
1027
47be870b 1028 free(p2);
5cb5a6ff
LP		 1029}
1030
034c6ed7
LP		 1031static int service_load_pid_file(Service *s) {
1032 char *k;
034c6ed7 1033 int r;
5925dd3c 1034 pid_t pid;
034c6ed7
LP		 1035
1036 assert(s);
1037
1038 if (s->main_pid_known)
1039 return 0;
1040
5e94833f
LP		 1041 assert(s->main_pid <= 0);
1042
034c6ed7
LP		 1043 if (!s->pid_file)
1044 return -ENOENT;
1045
1046 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1047 return r;
1048
5925dd3c
LP		 1049 r = parse_pid(k, &pid);
1050 free(k);
034c6ed7 1051
5925dd3c
LP		 1052 if (r < 0)
1053 return r;
406eaf93 1054
5925dd3c
LP		 1055 if (kill(pid, 0) < 0 && errno != EPERM) {
1056 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1057 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1058 return -ESRCH;
1059 }
1060
5925dd3c 1061 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1062 return r;
1063
5925dd3c
LP		 1064 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1065 /* FIXME: we need to do something here */
1066 return r;
034c6ed7
LP		 1067
1068 return 0;
1069}
1070
3e33402a
LP		 1071static int service_get_sockets(Service *s, Set **_set) {
1072 Set *set;
ceee3d82
LP		 1073 Iterator i;
1074 char *t;
3e33402a 1075 int r;
ceee3d82
LP		 1076
1077 assert(s);
3e33402a
LP		 1078 assert(_set);
1079
6cf6bbc2
LP		 1080 if (s->socket_fd >= 0)
1081 return 0;
1082
3e33402a
LP		 1083 /* Collects all Socket objects that belong to this
1084 * service. Note that a service might have multiple sockets
1085 * via multiple names. */
1086
1087 if (!(set = set_new(NULL, NULL)))
1088 return -ENOMEM;
ceee3d82 1089
4cd1fbcc 1090 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1091 char *k;
1092 Unit *p;
1093
1094 /* Look for all socket objects that go by any of our
1095 * units and collect their fds */
1096
3e33402a
LP		 1097 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1098 r = -ENOMEM;
1099 goto fail;
1100 }
ceee3d82 1101
4cd1fbcc 1102 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1103 free(k);
1104
8d567588
LP		 1105 if (!p)
1106 continue;
ceee3d82 1107
3e33402a
LP		 1108 if ((r = set_put(set, p)) < 0)
1109 goto fail;
ceee3d82
LP		 1110 }
1111
3e33402a
LP		 1112 *_set = set;
1113 return 0;
1114
1115fail:
1116 set_free(set);
1117 return r;
1118}
1119
e537352b 1120static int service_notify_sockets_dead(Service *s) {
3e33402a
LP		 1121 Iterator i;
1122 Set *set;
47be870b 1123 Socket *sock;
3e33402a
LP		 1124 int r;
1125
1126 assert(s);
1127
6cf6bbc2
LP		 1128 if (s->socket_fd >= 0)
1129 return 0;
1130
3e33402a 1131 /* Notifies all our sockets when we die */
3e33402a
LP		 1132 if ((r = service_get_sockets(s, &set)) < 0)
1133 return r;
1134
47be870b
LP		 1135 SET_FOREACH(sock, set, i)
1136 socket_notify_service_dead(sock);
3e33402a
LP		 1137
1138 set_free(set);
1139
ceee3d82
LP		 1140 return 0;
1141}
1142
034c6ed7
LP		 1143static void service_set_state(Service *s, ServiceState state) {
1144 ServiceState old_state;
5cb5a6ff
LP		 1145 assert(s);
1146
034c6ed7 1147 old_state = s->state;
5cb5a6ff 1148 s->state = state;
034c6ed7
LP		 1149
1150 if (state != SERVICE_START_PRE &&
1151 state != SERVICE_START &&
1152 state != SERVICE_START_POST &&
1153 state != SERVICE_RELOAD &&
1154 state != SERVICE_STOP &&
1155 state != SERVICE_STOP_SIGTERM &&
1156 state != SERVICE_STOP_SIGKILL &&
1157 state != SERVICE_STOP_POST &&
1158 state != SERVICE_FINAL_SIGTERM &&
1159 state != SERVICE_FINAL_SIGKILL &&
1160 state != SERVICE_AUTO_RESTART)
acbb0225 1161 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1162
7d55e835
LP		 1163 if (state != SERVICE_START &&
1164 state != SERVICE_START_POST &&
034c6ed7
LP		 1165 state != SERVICE_RUNNING &&
1166 state != SERVICE_RELOAD &&
1167 state != SERVICE_STOP &&
1168 state != SERVICE_STOP_SIGTERM &&
1169 state != SERVICE_STOP_SIGKILL)
5e94833f 1170 service_unwatch_main_pid(s);
034c6ed7
LP		 1171
1172 if (state != SERVICE_START_PRE &&
1173 state != SERVICE_START &&
1174 state != SERVICE_START_POST &&
1175 state != SERVICE_RELOAD &&
1176 state != SERVICE_STOP &&
1177 state != SERVICE_STOP_SIGTERM &&
1178 state != SERVICE_STOP_SIGKILL &&
1179 state != SERVICE_STOP_POST &&
1180 state != SERVICE_FINAL_SIGTERM &&
e537352b 1181 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1182 service_unwatch_control_pid(s);
034c6ed7 1183 s->control_command = NULL;
a16e1123 1184 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1185 }
034c6ed7 1186
ceee3d82
LP		 1187 if (state == SERVICE_DEAD ||
1188 state == SERVICE_STOP ||
1189 state == SERVICE_STOP_SIGTERM ||
1190 state == SERVICE_STOP_SIGKILL ||
1191 state == SERVICE_STOP_POST ||
1192 state == SERVICE_FINAL_SIGTERM ||
1193 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1194 state == SERVICE_FAILED ||
ceee3d82 1195 state == SERVICE_AUTO_RESTART)
e537352b 1196 service_notify_sockets_dead(s);
ceee3d82 1197
4f2d528d
LP		 1198 if (state != SERVICE_START_PRE &&
1199 state != SERVICE_START &&
6cf6bbc2
LP		 1200 state != SERVICE_START_POST &&
1201 state != SERVICE_RUNNING &&
1202 state != SERVICE_RELOAD &&
1203 state != SERVICE_STOP &&
1204 state != SERVICE_STOP_SIGTERM &&
1205 state != SERVICE_STOP_SIGKILL &&
1206 state != SERVICE_STOP_POST &&
1207 state != SERVICE_FINAL_SIGTERM &&
1208 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1209 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1210 service_close_socket_fd(s);
6cf6bbc2
LP		 1211 service_connection_unref(s);
1212 }
4f2d528d 1213
f6023656
LP		 1214 /* For the inactive states unit_notify() will trim the cgroup,
1215 * but for exit we have to do that ourselves... */
1216 if (state == SERVICE_EXITED)
1217 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1218
e537352b 1219 if (old_state != state)
4cd1fbcc 1220 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1221
1222 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1223}
1224
a16e1123
LP		 1225static int service_coldplug(Unit *u) {
1226 Service *s = SERVICE(u);
1227 int r;
1228
1229 assert(s);
1230 assert(s->state == SERVICE_DEAD);
1231
1232 if (s->deserialized_state != s->state) {
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 ||
e558336f
LP		 1244 s->deserialized_state == SERVICE_AUTO_RESTART) {
1245
1246 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1247 usec_t k;
1248
1249 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1250
1251 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1252 return r;
1253 }
1254 }
a16e1123
LP		 1255
1256 if ((s->deserialized_state == SERVICE_START &&
1257 (s->type == SERVICE_FORKING ||
8c47c732 1258 s->type == SERVICE_DBUS ||
34e9ba66 1259 s->type == SERVICE_ONESHOT ||
8c47c732 1260 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1261 s->deserialized_state == SERVICE_START_POST ||
1262 s->deserialized_state == SERVICE_RUNNING ||
1263 s->deserialized_state == SERVICE_RELOAD ||
1264 s->deserialized_state == SERVICE_STOP ||
1265 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1266 s->deserialized_state == SERVICE_STOP_SIGKILL)
1267 if (s->main_pid > 0)
1268 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1269 return r;
1270
1271 if (s->deserialized_state == SERVICE_START_PRE ||
1272 s->deserialized_state == SERVICE_START ||
1273 s->deserialized_state == SERVICE_START_POST ||
1274 s->deserialized_state == SERVICE_RELOAD ||
1275 s->deserialized_state == SERVICE_STOP ||
1276 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1277 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1278 s->deserialized_state == SERVICE_STOP_POST ||
1279 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1280 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1281 if (s->control_pid > 0)
1282 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1283 return r;
1284
1285 service_set_state(s, s->deserialized_state);
1286 }
1287
1288 return 0;
1289}
1290
44d8db9e
LP		 1291static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1292 Iterator i;
1293 int r;
1294 int *rfds = NULL;
1295 unsigned rn_fds = 0;
3e33402a 1296 Set *set;
47be870b 1297 Socket *sock;
44d8db9e
LP		 1298
1299 assert(s);
1300 assert(fds);
1301 assert(n_fds);
1302
6cf6bbc2
LP		 1303 if (s->socket_fd >= 0)
1304 return 0;
1305
3e33402a
LP		 1306 if ((r = service_get_sockets(s, &set)) < 0)
1307 return r;
1308
47be870b 1309 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1310 int *cfds;
1311 unsigned cn_fds;
1312
47be870b 1313 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1314 goto fail;
1315
1316 if (!cfds)
1317 continue;
1318
1319 if (!rfds) {
1320 rfds = cfds;
1321 rn_fds = cn_fds;
1322 } else {
1323 int *t;
1324
1325 if (!(t = new(int, rn_fds+cn_fds))) {
1326 free(cfds);
1327 r = -ENOMEM;
1328 goto fail;
1329 }
1330
1331 memcpy(t, rfds, rn_fds);
1332 memcpy(t+rn_fds, cfds, cn_fds);
1333 free(rfds);
1334 free(cfds);
1335
1336 rfds = t;
1337 rn_fds = rn_fds+cn_fds;
1338 }
1339 }
1340
1341 *fds = rfds;
1342 *n_fds = rn_fds;
3e33402a
LP		 1343
1344 set_free(set);
1345
44d8db9e
LP		 1346 return 0;
1347
1348fail:
3e33402a 1349 set_free(set);
44d8db9e 1350 free(rfds);
3e33402a 1351
44d8db9e
LP		 1352 return r;
1353}
1354
81a2b7ce
LP		 1355static int service_spawn(
1356 Service *s,
1357 ExecCommand *c,
1358 bool timeout,
1359 bool pass_fds,
1360 bool apply_permissions,
1361 bool apply_chroot,
1e3ad081 1362 bool apply_tty_stdin,
c952c6ec 1363 bool set_notify_socket,
81a2b7ce
LP		 1364 pid_t *_pid) {
1365
034c6ed7
LP		 1366 pid_t pid;
1367 int r;
6cf6bbc2 1368 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1369 unsigned n_fds = 0, n_env = 0;
1370 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1371
1372 assert(s);
1373 assert(c);
1374 assert(_pid);
1375
6cf6bbc2
LP		 1376 if (pass_fds ||
1377 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1378 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1379 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1380
4f2d528d
LP		 1381 if (s->socket_fd >= 0) {
1382 fds = &s->socket_fd;
1383 n_fds = 1;
6cf6bbc2
LP		 1384 } else {
1385 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1386 goto fail;
1387
1388 fds = fdsbuf;
1389 }
4f2d528d 1390 }
44d8db9e 1391
e558336f 1392 if (timeout && s->timeout_usec) {
acbb0225 1393 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1394 goto fail;
1395 } else
acbb0225 1396 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1397
9e2f7c11
LP		 1398 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1399 r = -ENOMEM;
1400 goto fail;
1401 }
1402
2105e76a
LP		 1403 if (!(our_env = new0(char*, 3))) {
1404 r = -ENOMEM;
1405 goto fail;
1406 }
c952c6ec 1407
2105e76a
LP		 1408 if (set_notify_socket)
1409 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1410 r = -ENOMEM;
1411 goto fail;
1412 }
1413
2105e76a
LP		 1414 if (s->main_pid > 0)
1415 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1416 r = -ENOMEM;
1417 goto fail;
1418 }
2105e76a
LP		 1419
1420 if (!(final_env = strv_env_merge(2,
1421 s->meta.manager->environment,
1422 our_env,
1423 NULL))) {
1424 r = -ENOMEM;
1425 goto fail;
1426 }
c952c6ec 1427
9e2f7c11
LP		 1428 r = exec_spawn(c,
1429 argv,
1430 &s->exec_context,
1431 fds, n_fds,
2105e76a 1432 final_env,
9e2f7c11
LP		 1433 apply_permissions,
1434 apply_chroot,
1e3ad081 1435 apply_tty_stdin,
4cd1fbcc
LP		 1436 s->meta.manager->confirm_spawn,
1437 s->meta.cgroup_bondings,
9e2f7c11
LP		 1438 &pid);
1439
9e2f7c11 1440 if (r < 0)
034c6ed7
LP		 1441 goto fail;
1442
4f2d528d 1443
87f0e418 1444 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1445 /* FIXME: we need to do something here */
1446 goto fail;
1447
2105e76a
LP		 1448 free(fdsbuf);
1449 strv_free(argv);
1450 strv_free(our_env);
1451 strv_free(final_env);
1452
034c6ed7
LP		 1453 *_pid = pid;
1454
5cb5a6ff 1455 return 0;
034c6ed7
LP		 1456
1457fail:
2105e76a 1458 free(fdsbuf);
c952c6ec 1459 strv_free(argv);
2105e76a
LP		 1460 strv_free(our_env);
1461 strv_free(final_env);
c952c6ec 1462
034c6ed7 1463 if (timeout)
acbb0225 1464 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1465
1466 return r;
1467}
1468
80876c20
LP		 1469static int main_pid_good(Service *s) {
1470 assert(s);
1471
1472 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1473 * don't know */
1474
1475 /* If we know the pid file, then lets just check if it is
1476 * still valid */
1477 if (s->main_pid_known)
1478 return s->main_pid > 0;
1479
1480 /* We don't know the pid */
1481 return -EAGAIN;
1482}
1483
1484static int control_pid_good(Service *s) {
1485 assert(s);
1486
1487 return s->control_pid > 0;
1488}
1489
1490static int cgroup_good(Service *s) {
1491 int r;
1492
1493 assert(s);
1494
4cd1fbcc 1495 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1496 return r;
1497
1498 return !r;
1499}
1500
034c6ed7
LP		 1501static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1502 int r;
1503 assert(s);
1504
1505 if (!success)
1506 s->failure = true;
1507
1508 if (allow_restart &&
47342320 1509 !s->forbid_restart &&
034c6ed7
LP		 1510 (s->restart == SERVICE_RESTART_ALWAYS ||
1511 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1512
acbb0225 1513 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1514 goto fail;
1515
1516 service_set_state(s, SERVICE_AUTO_RESTART);
1517 } else
fdf20a31 1518 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1519
47342320
LP		 1520 s->forbid_restart = false;
1521
034c6ed7
LP		 1522 return;
1523
1524fail:
4cd1fbcc 1525 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1526 service_enter_dead(s, false, false);
1527}
1528
1529static void service_enter_signal(Service *s, ServiceState state, bool success);
1530
1531static void service_enter_stop_post(Service *s, bool success) {
1532 int r;
1533 assert(s);
1534
1535 if (!success)
1536 s->failure = true;
1537
5e94833f
LP		 1538 service_unwatch_control_pid(s);
1539
a16e1123 1540 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1541 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1542 if ((r = service_spawn(s,
1543 s->control_command,
1544 true,
1545 false,
1546 !s->permissions_start_only,
1547 !s->root_directory_start_only,
1e3ad081 1548 true,
c952c6ec 1549 false,
81a2b7ce 1550 &s->control_pid)) < 0)
034c6ed7
LP		 1551 goto fail;
1552
d6ea93e3 1553
80876c20
LP		 1554 service_set_state(s, SERVICE_STOP_POST);
1555 } else
1556 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1557
1558 return;
1559
1560fail:
4cd1fbcc 1561 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1562 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1563}
1564
1565static void service_enter_signal(Service *s, ServiceState state, bool success) {
1566 int r;
ca949c9d
LP		 1567 Set *pid_set = NULL;
1568 bool wait_for_exit = false;
034c6ed7
LP		 1569
1570 assert(s);
1571
1572 if (!success)
1573 s->failure = true;
1574
2e22afe9
LP		 1575 if (s->exec_context.kill_mode != KILL_NONE) {
1576 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1577
ca949c9d
LP		 1578 if (s->main_pid > 0) {
1579 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1580 -s->main_pid :
1581 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1582
ca949c9d
LP		 1583 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1584 else
1585 wait_for_exit = true;
034c6ed7
LP		 1586 }
1587
ca949c9d
LP		 1588 if (s->control_pid > 0) {
1589 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1590 -s->control_pid :
1591 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1592
ca949c9d
LP		 1593 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1594 else
1595 wait_for_exit = true;
1596 }
50159e6a 1597
ca949c9d 1598 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1599
ca949c9d
LP		 1600 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1601 r = -ENOMEM;
50159e6a 1602 goto fail;
ca949c9d
LP		 1603 }
1604
1605 /* Exclude the main/control pids from being killed via the cgroup */
1606 if (s->main_pid > 0)
1607 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1608 goto fail;
1609
1610 if (s->control_pid > 0)
1611 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1612 goto fail;
1613
1614 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1615 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1616 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1617 } else if (r > 0)
ca949c9d
LP		 1618 wait_for_exit = true;
1619
1620 set_free(pid_set);
50159e6a 1621 }
d6ea93e3 1622 }
034c6ed7 1623
ca949c9d 1624 if (wait_for_exit) {
e558336f
LP		 1625 if (s->timeout_usec > 0)
1626 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1627 goto fail;
d6ea93e3 1628
80876c20
LP		 1629 service_set_state(s, state);
1630 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1631 service_enter_stop_post(s, true);
1632 else
034c6ed7
LP		 1633 service_enter_dead(s, true, true);
1634
1635 return;
1636
1637fail:
4cd1fbcc 1638 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1639
80876c20 1640 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1641 service_enter_stop_post(s, false);
1642 else
1643 service_enter_dead(s, false, true);
ca949c9d
LP		 1644
1645 if (pid_set)
1646 set_free(pid_set);
034c6ed7
LP		 1647}
1648
1649static void service_enter_stop(Service *s, bool success) {
1650 int r;
5925dd3c 1651
034c6ed7
LP		 1652 assert(s);
1653
1654 if (!success)
1655 s->failure = true;
1656
5e94833f
LP		 1657 service_unwatch_control_pid(s);
1658
a16e1123 1659 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1660 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1661 if ((r = service_spawn(s,
1662 s->control_command,
1663 true,
1664 false,
1665 !s->permissions_start_only,
1666 !s->root_directory_start_only,
c952c6ec 1667 false,
1e3ad081 1668 false,
e55224ca 1669 &s->control_pid)) < 0)
034c6ed7
LP		 1670 goto fail;
1671
80876c20
LP		 1672 service_set_state(s, SERVICE_STOP);
1673 } else
034c6ed7
LP		 1674 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1675
1676 return;
1677
1678fail:
4cd1fbcc 1679 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1680 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1681}
1682
80876c20 1683static void service_enter_running(Service *s, bool success) {
4eab639f 1684 int main_pid_ok, cgroup_ok;
80876c20
LP		 1685 assert(s);
1686
1687 if (!success)
1688 s->failure = true;
1689
4eab639f
LP		 1690 main_pid_ok = main_pid_good(s);
1691 cgroup_ok = cgroup_good(s);
1692
1693 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1694 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1695 service_set_state(s, SERVICE_RUNNING);
02ee865a 1696 else if (s->remain_after_exit)
80876c20
LP		 1697 service_set_state(s, SERVICE_EXITED);
1698 else
1699 service_enter_stop(s, true);
1700}
1701
034c6ed7
LP		 1702static void service_enter_start_post(Service *s) {
1703 int r;
1704 assert(s);
1705
5e94833f
LP		 1706 service_unwatch_control_pid(s);
1707
a16e1123 1708 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1709 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1710 if ((r = service_spawn(s,
1711 s->control_command,
1712 true,
1713 false,
1714 !s->permissions_start_only,
1715 !s->root_directory_start_only,
c952c6ec 1716 false,
1e3ad081 1717 false,
e55224ca 1718 &s->control_pid)) < 0)
034c6ed7
LP		 1719 goto fail;
1720
80876c20
LP		 1721 service_set_state(s, SERVICE_START_POST);
1722 } else
1723 service_enter_running(s, true);
034c6ed7
LP		 1724
1725 return;
1726
1727fail:
4cd1fbcc 1728 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1729 service_enter_stop(s, false);
1730}
1731
1732static void service_enter_start(Service *s) {
1733 pid_t pid;
1734 int r;
1735
1736 assert(s);
1737
1738 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1739 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1740
80876c20
LP		 1741 if (s->type == SERVICE_FORKING)
1742 service_unwatch_control_pid(s);
1743 else
1744 service_unwatch_main_pid(s);
1745
34e9ba66
LP		 1746 s->control_command_id = SERVICE_EXEC_START;
1747 s->control_command = s->exec_command[SERVICE_EXEC_START];
1748
81a2b7ce 1749 if ((r = service_spawn(s,
34e9ba66 1750 s->control_command,
8c47c732 1751 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1752 true,
1753 true,
1754 true,
1e3ad081 1755 true,
c952c6ec 1756 s->notify_access != NOTIFY_NONE,
81a2b7ce 1757 &pid)) < 0)
034c6ed7
LP		 1758 goto fail;
1759
1760 if (s->type == SERVICE_SIMPLE) {
1761 /* For simple services we immediately start
1762 * the START_POST binaries. */
1763
5925dd3c 1764 service_set_main_pid(s, pid);
034c6ed7
LP		 1765 service_enter_start_post(s);
1766
1767 } else if (s->type == SERVICE_FORKING) {
1768
1769 /* For forking services we wait until the start
1770 * process exited. */
1771
e55224ca 1772 s->control_pid = pid;
80876c20
LP		 1773 service_set_state(s, SERVICE_START);
1774
34e9ba66 1775 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 1776 s->type == SERVICE_DBUS ||
1777 s->type == SERVICE_NOTIFY) {
7d55e835 1778
34e9ba66 1779 /* For oneshot services we wait until the start
7d55e835
LP		 1780 * process exited, too, but it is our main process. */
1781
05e343b7 1782 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1783 * but wait for the bus name to appear on the
1784 * bus. Notify services are similar. */
05e343b7 1785
5925dd3c 1786 service_set_main_pid(s, pid);
80876c20 1787 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1788 } else
1789 assert_not_reached("Unknown service type");
1790
1791 return;
1792
1793fail:
4cd1fbcc 1794 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1795 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1796}
1797
1798static void service_enter_start_pre(Service *s) {
1799 int r;
1800
1801 assert(s);
1802
5e94833f
LP		 1803 service_unwatch_control_pid(s);
1804
a16e1123 1805 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1806 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1807 if ((r = service_spawn(s,
1808 s->control_command,
1809 true,
1810 false,
1811 !s->permissions_start_only,
1812 !s->root_directory_start_only,
1e3ad081 1813 true,
c952c6ec 1814 false,
e55224ca 1815 &s->control_pid)) < 0)
034c6ed7
LP		 1816 goto fail;
1817
80876c20
LP		 1818 service_set_state(s, SERVICE_START_PRE);
1819 } else
034c6ed7
LP		 1820 service_enter_start(s);
1821
1822 return;
1823
1824fail:
4cd1fbcc 1825 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1826 service_enter_dead(s, false, true);
1827}
1828
1829static void service_enter_restart(Service *s) {
1830 int r;
398ef8ba
LP		 1831 DBusError error;
1832
034c6ed7 1833 assert(s);
398ef8ba 1834 dbus_error_init(&error);
034c6ed7 1835
9ea9a0c8
LP		 1836 service_enter_dead(s, true, false);
1837
7b2603e6 1838 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 1839 goto fail;
1840
4cd1fbcc 1841 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 1842 return;
1843
1844fail:
398ef8ba 1845 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 1846 service_enter_dead(s, false, false);
398ef8ba
LP		 1847
1848 dbus_error_free(&error);
034c6ed7
LP		 1849}
1850
1851static void service_enter_reload(Service *s) {
1852 int r;
1853
1854 assert(s);
1855
5e94833f
LP		 1856 service_unwatch_control_pid(s);
1857
a16e1123 1858 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 1859 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 1860 if ((r = service_spawn(s,
1861 s->control_command,
1862 true,
1863 false,
1864 !s->permissions_start_only,
1865 !s->root_directory_start_only,
c952c6ec 1866 false,
1e3ad081 1867 false,
e55224ca 1868 &s->control_pid)) < 0)
034c6ed7
LP		 1869 goto fail;
1870
80876c20
LP		 1871 service_set_state(s, SERVICE_RELOAD);
1872 } else
1873 service_enter_running(s, true);
034c6ed7
LP		 1874
1875 return;
1876
1877fail:
4cd1fbcc 1878 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1879 service_enter_stop(s, false);
1880}
1881
34e9ba66 1882static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 1883 int r;
1884
1885 assert(s);
1886 assert(s->control_command);
1887 assert(s->control_command->command_next);
1888
1889 if (!success)
1890 s->failure = true;
1891
34e9ba66 1892 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 1893
34e9ba66 1894 s->control_command = s->control_command->command_next;
5e94833f
LP		 1895 service_unwatch_control_pid(s);
1896
81a2b7ce
LP		 1897 if ((r = service_spawn(s,
1898 s->control_command,
1899 true,
1900 false,
1901 !s->permissions_start_only,
1902 !s->root_directory_start_only,
5830833f
LP		 1903 s->control_command_id == SERVICE_EXEC_START_PRE ||
1904 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 1905 false,
e55224ca 1906 &s->control_pid)) < 0)
034c6ed7
LP		 1907 goto fail;
1908
1909 return;
1910
1911fail:
34e9ba66 1912 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 1913
80876c20
LP		 1914 if (s->state == SERVICE_START_PRE)
1915 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1916 else if (s->state == SERVICE_STOP)
1917 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 1918 else if (s->state == SERVICE_STOP_POST)
1919 service_enter_dead(s, false, true);
1920 else
1921 service_enter_stop(s, false);
5cb5a6ff
LP		 1922}
1923
34e9ba66
LP		 1924static void service_run_next_main(Service *s, bool success) {
1925 pid_t pid;
1926 int r;
1927
1928 assert(s);
1929 assert(s->control_command);
1930 assert(s->control_command->command_next);
1931
1932 if (!success)
1933 s->failure = true;
1934
1935 assert(s->control_command_id == SERVICE_EXEC_START);
1936 assert(s->type == SERVICE_ONESHOT);
1937
1938 s->control_command = s->control_command->command_next;
1939 service_unwatch_main_pid(s);
1940
1941 if ((r = service_spawn(s,
1942 s->control_command,
1943 false,
1944 true,
1945 true,
1946 true,
1947 true,
1948 s->notify_access != NOTIFY_NONE,
1949 &pid)) < 0)
1950 goto fail;
1951
1952 service_set_main_pid(s, pid);
1953
1954 return;
1955
1956fail:
1957 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
1958 service_enter_stop(s, false);
1959}
1960
87f0e418
LP		 1961static int service_start(Unit *u) {
1962 Service *s = SERVICE(u);
5cb5a6ff
LP		 1963
1964 assert(s);
1965
034c6ed7
LP		 1966 /* We cannot fulfill this request right now, try again later
1967 * please! */
1968 if (s->state == SERVICE_STOP ||
1969 s->state == SERVICE_STOP_SIGTERM ||
1970 s->state == SERVICE_STOP_SIGKILL ||
1971 s->state == SERVICE_STOP_POST ||
1972 s->state == SERVICE_FINAL_SIGTERM ||
1973 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 1974 return -EAGAIN;
1975
034c6ed7
LP		 1976 /* Already on it! */
1977 if (s->state == SERVICE_START_PRE ||
1978 s->state == SERVICE_START ||
1979 s->state == SERVICE_START_POST)
1980 return 0;
1981
fdf20a31 1982 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 1983
1e2e8133
LP		 1984 /* Make sure we don't enter a busy loop of some kind. */
1985 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 1986 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 1987 return -ECANCELED;
1e2e8133
LP		 1988 }
1989
cac6f7c8
LP		 1990 if ((s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1991 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1992 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) &&
1993 s->socket_fd < 0) {
1994 log_warning("%s can only be started with a per-connection socket.", u->meta.id);
1995 return -EINVAL;
1996 }
1997
034c6ed7
LP		 1998 s->failure = false;
1999 s->main_pid_known = false;
47342320 2000 s->forbid_restart = false;
034c6ed7
LP		 2001
2002 service_enter_start_pre(s);
2003 return 0;
5cb5a6ff
LP		 2004}
2005
87f0e418
LP		 2006static int service_stop(Unit *u) {
2007 Service *s = SERVICE(u);
5cb5a6ff
LP		 2008
2009 assert(s);
2010
3f6c78dc
LP		 2011 /* This is a user request, so don't do restarts on this
2012 * shutdown. */
47342320 2013 s->forbid_restart = true;
034c6ed7 2014
e537352b
LP		 2015 /* Already on it */
2016 if (s->state == SERVICE_STOP ||
2017 s->state == SERVICE_STOP_SIGTERM ||
2018 s->state == SERVICE_STOP_SIGKILL ||
2019 s->state == SERVICE_STOP_POST ||
2020 s->state == SERVICE_FINAL_SIGTERM ||
2021 s->state == SERVICE_FINAL_SIGKILL)
2022 return 0;
2023
3f6c78dc 2024 /* Don't allow a restart */
034c6ed7
LP		 2025 if (s->state == SERVICE_AUTO_RESTART) {
2026 service_set_state(s, SERVICE_DEAD);
2027 return 0;
2028 }
2029
3f6c78dc
LP		 2030 /* If there's already something running we go directly into
2031 * kill mode. */
2032 if (s->state == SERVICE_START_PRE ||
2033 s->state == SERVICE_START ||
2034 s->state == SERVICE_START_POST ||
2035 s->state == SERVICE_RELOAD) {
2036 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2037 return 0;
2038 }
5cb5a6ff 2039
3f6c78dc
LP		 2040 assert(s->state == SERVICE_RUNNING ||
2041 s->state == SERVICE_EXITED);
3a762661 2042
034c6ed7 2043 service_enter_stop(s, true);
5cb5a6ff
LP		 2044 return 0;
2045}
2046
87f0e418
LP		 2047static int service_reload(Unit *u) {
2048 Service *s = SERVICE(u);
034c6ed7
LP		 2049
2050 assert(s);
2051
80876c20 2052 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2053
2054 service_enter_reload(s);
5cb5a6ff
LP		 2055 return 0;
2056}
2057
87f0e418
LP		 2058static bool service_can_reload(Unit *u) {
2059 Service *s = SERVICE(u);
034c6ed7
LP		 2060
2061 assert(s);
2062
2063 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2064}
2065
a16e1123
LP		 2066static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2067 Service *s = SERVICE(u);
2068
2069 assert(u);
2070 assert(f);
2071 assert(fds);
2072
2073 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2074 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2075
2076 if (s->control_pid > 0)
5925dd3c 2077 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2078
5925dd3c
LP		 2079 if (s->main_pid_known && s->main_pid > 0)
2080 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2081
2082 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2083
3a2776bc
LP		 2084 if (s->status_text)
2085 unit_serialize_item(u, f, "status-text", s->status_text);
2086
a16e1123
LP		 2087 /* There's a minor uncleanliness here: if there are multiple
2088 * commands attached here, we will start from the first one
2089 * again */
2090 if (s->control_command_id >= 0)
825636e5 2091 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2092
2093 if (s->socket_fd >= 0) {
2094 int copy;
2095
2096 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2097 return copy;
2098
2099 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2100 }
2101
ecdbca40
LP		 2102 if (s->main_exec_status.pid > 0) {
2103 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2104
2105 if (s->main_exec_status.start_timestamp.realtime > 0) {
2106 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
2107 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2108
2109 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2110 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2111 }
2112
2113 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2114 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2115 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2116 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2117 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2118
2119 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2120 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2121 }
2122 }
2123
a16e1123
LP		 2124 return 0;
2125}
2126
2127static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2128 Service *s = SERVICE(u);
a16e1123
LP		 2129
2130 assert(u);
2131 assert(key);
2132 assert(value);
2133 assert(fds);
2134
2135 if (streq(key, "state")) {
2136 ServiceState state;
2137
2138 if ((state = service_state_from_string(value)) < 0)
2139 log_debug("Failed to parse state value %s", value);
2140 else
2141 s->deserialized_state = state;
2142 } else if (streq(key, "failure")) {
2143 int b;
2144
2145 if ((b = parse_boolean(value)) < 0)
2146 log_debug("Failed to parse failure value %s", value);
2147 else
2148 s->failure = b || s->failure;
2149 } else if (streq(key, "control-pid")) {
5925dd3c 2150 pid_t pid;
a16e1123 2151
e364ad06 2152 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2153 log_debug("Failed to parse control-pid value %s", value);
2154 else
e55224ca 2155 s->control_pid = pid;
a16e1123 2156 } else if (streq(key, "main-pid")) {
5925dd3c 2157 pid_t pid;
a16e1123 2158
e364ad06 2159 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2160 log_debug("Failed to parse main-pid value %s", value);
2161 else
5925dd3c 2162 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2163 } else if (streq(key, "main-pid-known")) {
2164 int b;
2165
2166 if ((b = parse_boolean(value)) < 0)
2167 log_debug("Failed to parse main-pid-known value %s", value);
2168 else
2169 s->main_pid_known = b;
3a2776bc
LP		 2170 } else if (streq(key, "status-text")) {
2171 char *t;
2172
2173 if ((t = strdup(value))) {
2174 free(s->status_text);
2175 s->status_text = t;
2176 }
2177
a16e1123
LP		 2178 } else if (streq(key, "control-command")) {
2179 ServiceExecCommand id;
2180
2181 if ((id = service_exec_command_from_string(value)) < 0)
2182 log_debug("Failed to parse exec-command value %s", value);
2183 else {
2184 s->control_command_id = id;
2185 s->control_command = s->exec_command[id];
2186 }
2187 } else if (streq(key, "socket-fd")) {
2188 int fd;
2189
2190 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2191 log_debug("Failed to parse socket-fd value %s", value);
2192 else {
2193
2194 if (s->socket_fd >= 0)
2195 close_nointr_nofail(s->socket_fd);
2196 s->socket_fd = fdset_remove(fds, fd);
2197 }
ecdbca40
LP		 2198 } else if (streq(key, "main-exec-status-pid")) {
2199 pid_t pid;
2200
e364ad06 2201 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2202 log_debug("Failed to parse main-exec-status-pid value %s", value);
2203 else
2204 s->main_exec_status.pid = pid;
2205 } else if (streq(key, "main-exec-status-code")) {
2206 int i;
2207
e364ad06 2208 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2209 log_debug("Failed to parse main-exec-status-code value %s", value);
2210 else
2211 s->main_exec_status.code = i;
2212 } else if (streq(key, "main-exec-status-status")) {
2213 int i;
2214
e364ad06 2215 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2216 log_debug("Failed to parse main-exec-status-status value %s", value);
2217 else
2218 s->main_exec_status.status = i;
2219 } else if (streq(key, "main-exec-status-start-realtime")) {
2220 uint64_t k;
2221
e364ad06 2222 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2223 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2224 else
2225 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2226 } else if (streq(key, "main-exec-status-start-monotonic")) {
2227 uint64_t k;
2228
e364ad06 2229 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2230 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2231 else
2232 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2233 } else if (streq(key, "main-exec-status-exit-realtime")) {
2234 uint64_t k;
2235
e364ad06 2236 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2237 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2238 else
2239 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2240 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2241 uint64_t k;
2242
e364ad06 2243 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2244 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2245 else
2246 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2247 } else
2248 log_debug("Unknown serialization key '%s'", key);
2249
2250 return 0;
2251}
2252
87f0e418
LP		 2253static UnitActiveState service_active_state(Unit *u) {
2254 assert(u);
5cb5a6ff 2255
acbb0225 2256 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2257}
2258
10a94420
LP		 2259static const char *service_sub_state_to_string(Unit *u) {
2260 assert(u);
2261
2262 return service_state_to_string(SERVICE(u)->state);
2263}
2264
701cc384
LP		 2265static bool service_check_gc(Unit *u) {
2266 Service *s = SERVICE(u);
2267
2268 assert(s);
2269
2270 return !!s->sysv_path;
2271}
2272
2273static bool service_check_snapshot(Unit *u) {
2274 Service *s = SERVICE(u);
2275
2276 assert(s);
2277
2278 return !s->got_socket_fd;
2279}
2280
87f0e418
LP		 2281static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2282 Service *s = SERVICE(u);
034c6ed7 2283 bool success;
5cb5a6ff
LP		 2284
2285 assert(s);
034c6ed7
LP		 2286 assert(pid >= 0);
2287
f21781d5 2288 if (!s->meta.fragment_path)
d06dacd0
LP		 2289 success = is_clean_exit_lsb(code, status);
2290 else
2291 success = is_clean_exit(code, status);
034c6ed7
LP		 2292
2293 if (s->main_pid == pid) {
2294
034c6ed7 2295 s->main_pid = 0;
34e9ba66 2296 exec_status_exit(&s->main_exec_status, pid, code, status);
034c6ed7 2297
34e9ba66
LP		 2298 if (s->type != SERVICE_FORKING && s->control_command) {
2299 s->control_command->exec_status = s->main_exec_status;
b708e7ce 2300
34e9ba66 2301 if (s->control_command->ignore)
b708e7ce 2302 success = true;
034c6ed7
LP		 2303 }
2304
92abbefb
LP		 2305 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2306 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2307 s->failure = s->failure || !success;
034c6ed7 2308
34e9ba66
LP		 2309 if (s->control_command &&
2310 s->control_command->command_next &&
2311 success) {
034c6ed7 2312
34e9ba66
LP		 2313 /* There is another command to *
2314 * execute, so let's do that. */
034c6ed7 2315
34e9ba66
LP		 2316 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2317 service_run_next_main(s, success);
034c6ed7 2318
34e9ba66
LP		 2319 } else {
2320
2321 /* The service exited, so the service is officially
2322 * gone. */
2323
2324 s->control_command = NULL;
2325 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2326
2327 switch (s->state) {
2328
2329 case SERVICE_START_POST:
2330 case SERVICE_RELOAD:
2331 case SERVICE_STOP:
2332 /* Need to wait until the operation is
2333 * done */
c4653a4d 2334 break;
7d55e835 2335
34e9ba66
LP		 2336 case SERVICE_START:
2337 if (s->type == SERVICE_ONESHOT) {
2338 /* This was our main goal, so let's go on */
2339 if (success)
2340 service_enter_start_post(s);
2341 else
2342 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2343 break;
2344 } else {
2345 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2346
34e9ba66
LP		 2347 /* Fall through */
2348 }
034c6ed7 2349
34e9ba66
LP		 2350 case SERVICE_RUNNING:
2351 service_enter_running(s, success);
2352 break;
034c6ed7 2353
34e9ba66
LP		 2354 case SERVICE_STOP_SIGTERM:
2355 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2356
34e9ba66
LP		 2357 if (!control_pid_good(s))
2358 service_enter_stop_post(s, success);
5cb5a6ff 2359
34e9ba66
LP		 2360 /* If there is still a control process, wait for that first */
2361 break;
2362
2363 default:
2364 assert_not_reached("Uh, main process died at wrong time.");
2365 }
034c6ed7 2366 }
5cb5a6ff 2367
034c6ed7 2368 } else if (s->control_pid == pid) {
034c6ed7 2369
34e9ba66
LP		 2370 s->control_pid = 0;
2371
b708e7ce 2372 if (s->control_command) {
b58b4116 2373 exec_status_exit(&s->control_command->exec_status, pid, code, status);
a16e1123 2374
b708e7ce
LP		 2375 if (s->control_command->ignore)
2376 success = true;
2377 }
2378
34e9ba66 2379 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2380 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2381 s->failure = s->failure || !success;
034c6ed7 2382
34e9ba66
LP		 2383 if (s->control_command &&
2384 s->control_command->command_next &&
2385 success) {
034c6ed7
LP		 2386
2387 /* There is another command to *
2388 * execute, so let's do that. */
2389
34e9ba66
LP		 2390 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2391 service_run_next_control(s, success);
034c6ed7 2392
80876c20 2393 } else {
034c6ed7
LP		 2394 /* No further commands for this step, so let's
2395 * figure out what to do next */
2396
a16e1123
LP		 2397 s->control_command = NULL;
2398 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2399
9e2f7c11 2400 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2401
034c6ed7
LP		 2402 switch (s->state) {
2403
2404 case SERVICE_START_PRE:
2405 if (success)
2406 service_enter_start(s);
2407 else
80876c20 2408 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2409 break;
2410
2411 case SERVICE_START:
2412 assert(s->type == SERVICE_FORKING);
2413
2414 /* Let's try to load the pid
2415 * file here if we can. We
2416 * ignore the return value,
2417 * since the PID file might
2418 * actually be created by a
2419 * START_POST script */
2420
2421 if (success) {
2422 if (s->pid_file)
2423 service_load_pid_file(s);
2424
2425 service_enter_start_post(s);
2426 } else
80876c20 2427 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2428
2429 break;
2430
2431 case SERVICE_START_POST:
2432 if (success && s->pid_file && !s->main_pid_known) {
2433 int r;
2434
2435 /* Hmm, let's see if we can
2436 * load the pid now after the
2437 * start-post scripts got
2438 * executed. */
2439
2440 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2441 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2442 }
2443
2444 /* Fall through */
2445
2446 case SERVICE_RELOAD:
80876c20
LP		 2447 if (success)
2448 service_enter_running(s, true);
2449 else
034c6ed7
LP		 2450 service_enter_stop(s, false);
2451
2452 break;
2453
2454 case SERVICE_STOP:
80876c20 2455 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2456 break;
2457
2458 case SERVICE_STOP_SIGTERM:
2459 case SERVICE_STOP_SIGKILL:
2460 if (main_pid_good(s) <= 0)
2461 service_enter_stop_post(s, success);
2462
2463 /* If there is still a service
2464 * process around, wait until
2465 * that one quit, too */
2466 break;
2467
2468 case SERVICE_STOP_POST:
2469 case SERVICE_FINAL_SIGTERM:
2470 case SERVICE_FINAL_SIGKILL:
2471 service_enter_dead(s, success, true);
2472 break;
2473
2474 default:
2475 assert_not_reached("Uh, control process died at wrong time.");
2476 }
2477 }
8c47c732 2478 }
c4e2ceae
LP		 2479
2480 /* Notify clients about changed exit status */
2481 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2482}
2483
acbb0225 2484static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2485 Service *s = SERVICE(u);
034c6ed7
LP		 2486
2487 assert(s);
2488 assert(elapsed == 1);
2489
acbb0225 2490 assert(w == &s->timer_watch);
034c6ed7
LP		 2491
2492 switch (s->state) {
2493
2494 case SERVICE_START_PRE:
2495 case SERVICE_START:
9e2f7c11 2496 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2497 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2498 break;
2499
034c6ed7
LP		 2500 case SERVICE_START_POST:
2501 case SERVICE_RELOAD:
9e2f7c11 2502 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2503 service_enter_stop(s, false);
2504 break;
2505
2506 case SERVICE_STOP:
9e2f7c11 2507 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2508 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2509 break;
2510
2511 case SERVICE_STOP_SIGTERM:
9e2f7c11 2512 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2513 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2514 break;
2515
2516 case SERVICE_STOP_SIGKILL:
2517 /* Uh, wie sent a SIGKILL and it is still not gone?
2518 * Must be something we cannot kill, so let's just be
2519 * weirded out and continue */
2520
9e2f7c11 2521 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2522 service_enter_stop_post(s, false);
2523 break;
2524
2525 case SERVICE_STOP_POST:
9e2f7c11 2526 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2527 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2528 break;
2529
2530 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2531 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2532 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2533 break;
2534
2535 case SERVICE_FINAL_SIGKILL:
fdf20a31 2536 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2537 service_enter_dead(s, false, true);
2538 break;
2539
2540 case SERVICE_AUTO_RESTART:
54165a39 2541 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2542 service_enter_restart(s);
2543 break;
2544
2545 default:
2546 assert_not_reached("Timeout at wrong time.");
2547 }
5cb5a6ff
LP		 2548}
2549
8e274523
LP		 2550static void service_cgroup_notify_event(Unit *u) {
2551 Service *s = SERVICE(u);
2552
2553 assert(u);
2554
9e2f7c11 2555 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2556
2557 switch (s->state) {
2558
2559 /* Waiting for SIGCHLD is usually more interesting,
2560 * because it includes return codes/signals. Which is
2561 * why we ignore the cgroup events for most cases,
2562 * except when we don't know pid which to expect the
2563 * SIGCHLD for. */
2564
2565 case SERVICE_RUNNING:
80876c20 2566 service_enter_running(s, true);
8e274523
LP		 2567 break;
2568
28708d8a
LP		 2569 case SERVICE_STOP_SIGTERM:
2570 case SERVICE_STOP_SIGKILL:
2571 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2572 service_enter_stop_post(s, true);
2573
2574 break;
2575
7f97f0fe
LP		 2576 case SERVICE_FINAL_SIGTERM:
2577 case SERVICE_FINAL_SIGKILL:
2578 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2579 service_enter_dead(s, true, true);
2580
2581 break;
2582
8e274523
LP		 2583 default:
2584 ;
2585 }
2586}
2587
c952c6ec 2588static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2589 Service *s = SERVICE(u);
2590 const char *e;
2591
2592 assert(u);
2593
c952c6ec
LP		 2594 if (s->notify_access == NOTIFY_NONE) {
2595 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2596 u->meta.id, (unsigned long) pid);
2597 return;
2598 }
2599
2600 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2601 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2602 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2603 return;
2604 }
2605
8c47c732
LP		 2606 log_debug("%s: Got message", u->meta.id);
2607
2608 /* Interpret MAINPID= */
2609 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2610 (s->state == SERVICE_START ||
2611 s->state == SERVICE_START_POST ||
2612 s->state == SERVICE_RUNNING ||
2613 s->state == SERVICE_RELOAD)) {
8c47c732 2614
5925dd3c 2615 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2616 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2617 else {
2618 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2619 service_set_main_pid(s, pid);
8c47c732
LP		 2620 }
2621 }
2622
2623 /* Interpret READY= */
2624 if (s->type == SERVICE_NOTIFY &&
2625 s->state == SERVICE_START &&
2626 strv_find(tags, "READY=1")) {
2627 log_debug("%s: got READY=1", u->meta.id);
2628
2629 service_enter_start_post(s);
2630 }
2631
2632 /* Interpret STATUS= */
2633 if ((e = strv_find_prefix(tags, "STATUS="))) {
2634 char *t;
2635
3a2776bc
LP		 2636 if (e[7]) {
2637 if (!(t = strdup(e+7))) {
2638 log_error("Failed to allocate string.");
2639 return;
2640 }
2641
2642 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2643
3a2776bc
LP		 2644 free(s->status_text);
2645 s->status_text = t;
2646 } else {
2647 free(s->status_text);
2648 s->status_text = NULL;
2649 }
8c47c732 2650
8c47c732 2651 }
c4e2ceae
LP		 2652
2653 /* Notify clients about changed status or main pid */
2654 unit_add_to_dbus_queue(u);
8c47c732
LP		 2655}
2656
2c4104f0 2657static int service_enumerate(Manager *m) {
2c4104f0
LP		 2658 char **p;
2659 unsigned i;
2660 DIR *d = NULL;
2661 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2662 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2663 Unit *service;
2664 Iterator j;
2c4104f0 2665 int r;
980900c1
TG		 2666#ifdef TARGET_ARCH
2667 Unit *previous = NULL;
2668 char *arch_daemons = NULL;
2669 char *arch_daemons_stripped = NULL;
2670 char **arch_daemons_split = NULL;
2671#endif
2c4104f0
LP		 2672
2673 assert(m);
2674
980900c1
TG		 2675#ifdef TARGET_ARCH
2676 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2677 "DAEMONS", &arch_daemons,
2678 NULL)) < 0) {
2679
2680 if (r != -ENOENT)
2681 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2682
2683 } else if (arch_daemons) {
2684 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2685 arch_daemons_stripped = arch_daemons;
2686 else
2687 arch_daemons_stripped++; /* strip start paren */
2688
2689 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2690
2691 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2692 r = -ENOMEM;
2693 goto finish;
2694 }
2695
2696 STRV_FOREACH(p, arch_daemons_split) {
2697
2698 free(name);
2699
2700 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2701 continue;
2702
2703 if (!(name = sysv_translate_name(*p))) {
2704 r = -ENOMEM;
2705 goto finish;
2706 }
2707
2708 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2709 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2710 continue;
2711 }
2712
2713 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2714 goto finish;
2715
2716 if (previous)
2717 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2718 goto finish;
2719
2720 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2721 previous = service;
2722 }
2723 }
2724#endif
2725
c68364b7
LP		 2726 zero(runlevel_services);
2727
84e3543e 2728 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2729 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2730 struct dirent *de;
2731
2732 free(path);
2733 path = NULL;
09cd1ab1 2734 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2735 r = -ENOMEM;
2736 goto finish;
2737 }
2738
2739 if (d)
2740 closedir(d);
2741
2742 if (!(d = opendir(path))) {
2743 if (errno != ENOENT)
2744 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2745
2746 continue;
2747 }
2748
2749 while ((de = readdir(d))) {
db06e3b6 2750 int a, b;
2c4104f0
LP		 2751
2752 if (ignore_file(de->d_name))
2753 continue;
2754
2755 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2756 continue;
2757
2758 if (strlen(de->d_name) < 4)
2759 continue;
2760
db06e3b6
LP		 2761 a = undecchar(de->d_name[1]);
2762 b = undecchar(de->d_name[2]);
2763
2764 if (a < 0 || b < 0)
2765 continue;
2766
2c4104f0
LP		 2767 free(fpath);
2768 fpath = NULL;
09cd1ab1 2769 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2770 r = -ENOMEM;
2771 goto finish;
2772 }
2773
2774 if (access(fpath, X_OK) < 0) {
2775
2776 if (errno != ENOENT)
2777 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2778
2779 continue;
2780 }
2781
2782 free(name);
b7ccee3c 2783 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2784 r = -ENOMEM;
2785 goto finish;
2786 }
2787
398ef8ba 2788 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2789 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2790 continue;
2791 }
2c4104f0 2792
c68364b7
LP		 2793 if (de->d_name[0] == 'S') {
2794
f73d93a4
LP		 2795 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2796 SERVICE(service)->sysv_start_priority =
2797 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 2798
c68364b7 2799 SERVICE(service)->sysv_enabled = true;
f73d93a4 2800 }
db06e3b6 2801
c68364b7
LP		 2802 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
2803 goto finish;
2c4104f0 2804
c68364b7 2805 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 2806 goto finish;
23a177ef 2807
fc5df99e
LP		 2808 } else if (de->d_name[0] == 'K' &&
2809 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2810 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2811
c68364b7
LP		 2812 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
2813 goto finish;
2814
2815 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 2816 goto finish;
2817 }
2818 }
2819 }
2820
c68364b7
LP		 2821 /* Now we loaded all stubs and are aware of the lowest
2822 start-up priority for all services, not let's actually load
2823 the services, this will also tell us which services are
2824 actually native now */
2825 manager_dispatch_load_queue(m);
2826
2827 /* If this is a native service, rely on native ways to pull in
2828 * a service, don't pull it in via sysv rcN.d links. */
2829 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
2830 SET_FOREACH(service, runlevel_services[i], j) {
2831 service = unit_follow_merge(service);
2832
2833 if (service->meta.fragment_path)
2834 continue;
2835
2836 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2837 goto finish;
2838 }
2839
2840 /* We honour K links only for halt/reboot. For the normal
2841 * runlevels we assume the stop jobs will be implicitly added
2842 * by the core logic. Also, we don't really distuingish here
2843 * between the runlevels 0 and 6 and just add them to the
2844 * special shutdown target. On SUSE the boot.d/ runlevel is
2845 * also used for shutdown, so we add links for that too to the
2846 * shutdown target.*/
2847 SET_FOREACH(service, shutdown_services, j) {
2848 service = unit_follow_merge(service);
2849
2850 if (service->meta.fragment_path)
2851 continue;
2852
2853 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2854 goto finish;
2855 }
2856
2c4104f0
LP		 2857 r = 0;
2858
2859finish:
2860 free(path);
2861 free(fpath);
2862 free(name);
980900c1
TG		 2863#ifdef TARGET_ARCH
2864 free(arch_daemons);
2865 free(arch_daemons_split);
2866#endif
fbe9f3a9 2867
c68364b7
LP		 2868 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
2869 set_free(runlevel_services[i]);
2870 set_free(shutdown_services);
2871
fbe9f3a9
LP		 2872 if (d)
2873 closedir(d);
2c4104f0
LP		 2874
2875 return r;
2876}
2877
05e343b7
LP		 2878static void service_bus_name_owner_change(
2879 Unit *u,
2880 const char *name,
2881 const char *old_owner,
2882 const char *new_owner) {
2883
2884 Service *s = SERVICE(u);
2885
2886 assert(s);
2887 assert(name);
2888
2889 assert(streq(s->bus_name, name));
2890 assert(old_owner || new_owner);
2891
2892 if (old_owner && new_owner)
2893 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2894 else if (old_owner)
2895 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2896 else
2897 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2898
2899 s->bus_name_good = !!new_owner;
2900
2901 if (s->type == SERVICE_DBUS) {
2902
2903 /* service_enter_running() will figure out what to
2904 * do */
2905 if (s->state == SERVICE_RUNNING)
2906 service_enter_running(s, true);
2907 else if (s->state == SERVICE_START && new_owner)
2908 service_enter_start_post(s);
2909
2910 } else if (new_owner &&
2911 s->main_pid <= 0 &&
2912 (s->state == SERVICE_START ||
2913 s->state == SERVICE_START_POST ||
2914 s->state == SERVICE_RUNNING ||
2915 s->state == SERVICE_RELOAD)) {
2916
2917 /* Try to acquire PID from bus service */
2918 log_debug("Trying to acquire PID from D-Bus name...");
2919
2920 bus_query_pid(u->meta.manager, name);
2921 }
2922}
2923
2924static void service_bus_query_pid_done(
2925 Unit *u,
2926 const char *name,
2927 pid_t pid) {
2928
2929 Service *s = SERVICE(u);
2930
2931 assert(s);
2932 assert(name);
2933
2934 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2935
2936 if (s->main_pid <= 0 &&
2937 (s->state == SERVICE_START ||
2938 s->state == SERVICE_START_POST ||
2939 s->state == SERVICE_RUNNING ||
2940 s->state == SERVICE_RELOAD))
5925dd3c 2941 service_set_main_pid(s, pid);
05e343b7
LP		 2942}
2943
6cf6bbc2 2944int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 2945 assert(s);
2946 assert(fd >= 0);
2947
2948 /* This is called by the socket code when instantiating a new
2949 * service for a stream socket and the socket needs to be
2950 * configured. */
2951
4cd1fbcc 2952 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 2953 return -EINVAL;
2954
2955 if (s->socket_fd >= 0)
2956 return -EBUSY;
2957
2958 if (s->state != SERVICE_DEAD)
2959 return -EAGAIN;
2960
2961 s->socket_fd = fd;
701cc384 2962 s->got_socket_fd = true;
6cf6bbc2
LP		 2963 s->socket = sock;
2964
4f2d528d
LP		 2965 return 0;
2966}
2967
fdf20a31 2968static void service_reset_failed(Unit *u) {
5632e374
LP		 2969 Service *s = SERVICE(u);
2970
2971 assert(s);
2972
fdf20a31 2973 if (s->state == SERVICE_FAILED)
5632e374
LP		 2974 service_set_state(s, SERVICE_DEAD);
2975
2976 s->failure = false;
2977}
2978
94f04347
LP		 2979static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2980 [SERVICE_DEAD] = "dead",
2981 [SERVICE_START_PRE] = "start-pre",
2982 [SERVICE_START] = "start",
2983 [SERVICE_START_POST] = "start-post",
2984 [SERVICE_RUNNING] = "running",
80876c20 2985 [SERVICE_EXITED] = "exited",
94f04347
LP		 2986 [SERVICE_RELOAD] = "reload",
2987 [SERVICE_STOP] = "stop",
2988 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2989 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2990 [SERVICE_STOP_POST] = "stop-post",
2991 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2992 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 2993 [SERVICE_FAILED] = "failed",
94f04347
LP		 2994 [SERVICE_AUTO_RESTART] = "auto-restart",
2995};
2996
2997DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2998
2999static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3000 [SERVICE_ONCE] = "once",
3001 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
40531a55 3002 [SERVICE_RESTART_ALWAYS] = "restart-always",
94f04347
LP		 3003};
3004
3005DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3006
3007static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3008 [SERVICE_SIMPLE] = "simple",
0d624a78 3009 [SERVICE_FORKING] = "forking",
34e9ba66 3010 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3011 [SERVICE_DBUS] = "dbus",
3012 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3013};
3014
3015DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3016
e537352b 3017static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3018 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3019 [SERVICE_EXEC_START] = "ExecStart",
3020 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3021 [SERVICE_EXEC_RELOAD] = "ExecReload",
3022 [SERVICE_EXEC_STOP] = "ExecStop",
3023 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3024};
3025
3026DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3027
c952c6ec
LP		 3028static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3029 [NOTIFY_NONE] = "none",
3030 [NOTIFY_MAIN] = "main",
3031 [NOTIFY_ALL] = "all"
3032};
3033
3034DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3035
87f0e418 3036const UnitVTable service_vtable = {
5cb5a6ff 3037 .suffix = ".service",
9e58ff9c 3038 .show_status = true,
5cb5a6ff 3039
034c6ed7
LP		 3040 .init = service_init,
3041 .done = service_done,
a16e1123
LP		 3042 .load = service_load,
3043
3044 .coldplug = service_coldplug,
034c6ed7 3045
5cb5a6ff
LP		 3046 .dump = service_dump,
3047
3048 .start = service_start,
3049 .stop = service_stop,
3050 .reload = service_reload,
3051
034c6ed7
LP		 3052 .can_reload = service_can_reload,
3053
a16e1123
LP		 3054 .serialize = service_serialize,
3055 .deserialize_item = service_deserialize_item,
3056
5cb5a6ff 3057 .active_state = service_active_state,
10a94420 3058 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3059
701cc384
LP		 3060 .check_gc = service_check_gc,
3061 .check_snapshot = service_check_snapshot,
3062
034c6ed7
LP		 3063 .sigchld_event = service_sigchld_event,
3064 .timer_event = service_timer_event,
2c4104f0 3065
fdf20a31 3066 .reset_failed = service_reset_failed,
5632e374 3067
8e274523 3068 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3069 .notify_message = service_notify_message,
8e274523 3070
05e343b7
LP		 3071 .bus_name_owner_change = service_bus_name_owner_change,
3072 .bus_query_pid_done = service_bus_query_pid_done,
3073
c4e2ceae 3074 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3075 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3076 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3077
2c4104f0 3078 .enumerate = service_enumerate
5cb5a6ff 3079};
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