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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
2c4104f0
LP		 37
38#define COMMENTS "#;\n"
39#define NEWLINES "\n\r"
034c6ed7 40
07459bb6 41#ifdef HAVE_SYSV_COMPAT
f34277d9
LP		 42
43#define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
44
09cd1ab1
LP		 45typedef enum RunlevelType {
46 RUNLEVEL_UP,
47 RUNLEVEL_DOWN,
fc5df99e 48 RUNLEVEL_SYSINIT
09cd1ab1
LP		 49} RunlevelType;
50
51static const struct {
52 const char *path;
53 const char *target;
54 const RunlevelType type;
55} rcnd_table[] = {
9d25f5ed 56 /* Standard SysV runlevels for start-up */
514f4ef5 57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 62
d4054675 63#ifdef TARGET_SUSE
cfe243e3 64 /* SUSE style boot.d */
fc5df99e 65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 66#endif
fbe9f3a9 67
858dae18 68#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
fbe9f3a9 69 /* Debian style rcS.d */
fc5df99e 70 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 71#endif
9d25f5ed
LP		 72
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
75 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
76
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 82};
83
09cd1ab1 84#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 85/* #define RUNLEVELS_DOWN "06" */
86/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 87#endif
09cd1ab1 88
acbb0225 89static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 90 [SERVICE_DEAD] = UNIT_INACTIVE,
91 [SERVICE_START_PRE] = UNIT_ACTIVATING,
92 [SERVICE_START] = UNIT_ACTIVATING,
93 [SERVICE_START_POST] = UNIT_ACTIVATING,
94 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 95 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 96 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 97 [SERVICE_STOP] = UNIT_DEACTIVATING,
98 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
101 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 103 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 104 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 105};
5cb5a6ff 106
a16e1123
LP		 107static void service_init(Unit *u) {
108 Service *s = SERVICE(u);
109
110 assert(u);
111 assert(u->meta.load_state == UNIT_STUB);
112
113 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
114 s->restart_usec = DEFAULT_RESTART_USEC;
115 s->timer_watch.type = WATCH_INVALID;
07459bb6 116#ifdef HAVE_SYSV_COMPAT
a16e1123 117 s->sysv_start_priority = -1;
07459bb6 118#endif
a16e1123
LP		 119 s->socket_fd = -1;
120
121 exec_context_init(&s->exec_context);
122
123 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
124
125 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
126}
127
5e94833f
LP		 128static void service_unwatch_control_pid(Service *s) {
129 assert(s);
130
131 if (s->control_pid <= 0)
132 return;
133
134 unit_unwatch_pid(UNIT(s), s->control_pid);
135 s->control_pid = 0;
136}
137
138static void service_unwatch_main_pid(Service *s) {
139 assert(s);
140
141 if (s->main_pid <= 0)
142 return;
143
144 unit_unwatch_pid(UNIT(s), s->main_pid);
145 s->main_pid = 0;
146}
147
5925dd3c 148static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 149 pid_t ppid;
150
5925dd3c
LP		 151 assert(s);
152
153 if (pid <= 1)
154 return -EINVAL;
155
156 if (pid == getpid())
157 return -EINVAL;
158
e55224ca
LP		 159 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
160 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
161 s->meta.id, (unsigned long) pid);
162
5925dd3c
LP		 163 s->main_pid = pid;
164 s->main_pid_known = true;
165
b58b4116
LP		 166 exec_status_start(&s->main_exec_status, pid);
167
5925dd3c
LP		 168 return 0;
169}
170
4f2d528d
LP		 171static void service_close_socket_fd(Service *s) {
172 assert(s);
173
174 if (s->socket_fd < 0)
175 return;
176
177 close_nointr_nofail(s->socket_fd);
178 s->socket_fd = -1;
179}
180
6cf6bbc2
LP		 181static void service_connection_unref(Service *s) {
182 assert(s);
183
f976f3f6 184 if (!s->accept_socket)
6cf6bbc2
LP		 185 return;
186
f976f3f6
LP		 187 socket_connection_unref(s->accept_socket);
188 s->accept_socket = NULL;
6cf6bbc2
LP		 189}
190
87f0e418
LP		 191static void service_done(Unit *u) {
192 Service *s = SERVICE(u);
44d8db9e
LP		 193
194 assert(s);
195
196 free(s->pid_file);
197 s->pid_file = NULL;
198
07459bb6 199#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 200 free(s->sysv_path);
201 s->sysv_path = NULL;
202
8309400a
LP		 203 free(s->sysv_runlevels);
204 s->sysv_runlevels = NULL;
07459bb6 205#endif
8309400a 206
8c47c732
LP		 207 free(s->status_text);
208 s->status_text = NULL;
209
44d8db9e 210 exec_context_done(&s->exec_context);
e537352b 211 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e
LP		 212 s->control_command = NULL;
213
214 /* This will leak a process, but at least no memory or any of
215 * our resources */
5e94833f
LP		 216 service_unwatch_main_pid(s);
217 service_unwatch_control_pid(s);
44d8db9e 218
05e343b7
LP		 219 if (s->bus_name) {
220 unit_unwatch_bus_name(UNIT(u), s->bus_name);
221 free(s->bus_name);
222 s->bus_name = NULL;
223 }
224
4f2d528d 225 service_close_socket_fd(s);
6cf6bbc2 226 service_connection_unref(s);
4f2d528d 227
f976f3f6
LP		 228 set_free(s->configured_sockets);
229
acbb0225 230 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 231}
232
07459bb6 233#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 234static char *sysv_translate_name(const char *name) {
235 char *r;
236
237 if (!(r = new(char, strlen(name) + sizeof(".service"))))
238 return NULL;
239
240 if (startswith(name, "boot."))
241 /* Drop SuSE-style boot. prefix */
242 strcpy(stpcpy(r, name + 5), ".service");
243 else if (endswith(name, ".sh"))
244 /* Drop Debian-style .sh suffix */
245 strcpy(stpcpy(r, name) - 3, ".service");
980900c1 246#ifdef TARGET_ARCH
9f151f29
LP		 247 else if (startswith(name, "@"))
248 /* Drop Arch-style background prefix */
249 strcpy(stpcpy(r, name + 1), ".service");
980900c1 250#endif
b7ccee3c
LP		 251 else
252 /* Normal init scripts */
253 strcpy(stpcpy(r, name), ".service");
254
255 return r;
256}
257
ee95669f 258static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 259
a7d3cc26
LP		 260 /* We silently ignore the $ prefix here. According to the LSB
261 * spec it simply indicates whether something is a
262 * standardized name or a distribution-specific one. Since we
263 * just follow what already exists and do not introduce new
264 * uses or names we don't care who introduced a new name. */
265
2c4104f0 266 static const char * const table[] = {
6464aa08 267 /* LSB defined facilities */
a7d3cc26
LP		 268 "local_fs", SPECIAL_LOCAL_FS_TARGET,
269 "network", SPECIAL_NETWORK_TARGET,
270 "named", SPECIAL_NSS_LOOKUP_TARGET,
271 "portmap", SPECIAL_RPCBIND_TARGET,
272 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
273 "syslog", SPECIAL_SYSLOG_TARGET,
274 "time", SPECIAL_RTC_SET_TARGET,
6464aa08
LP		 275
276 /* Debian extensions */
858dae18 277#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
a7d3cc26 278 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 279#endif
a7d3cc26
LP		 280 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
281 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
3177a49c
LP		 282
283#ifdef TARGET_FEDORA
a7d3cc26
LP		 284 /* Fedora extensions */
285 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
286 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
287 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 288#endif
a7d3cc26
LP		 289
290 /* SuSE extensions */
291 "null", NULL
292
2c4104f0
LP		 293 };
294
295 unsigned i;
296 char *r;
ee95669f 297 const char *n;
2c4104f0 298
ee95669f
LP		 299 assert(name);
300 assert(_r);
a7d3cc26 301
ee95669f 302 n = *name == '$' ? name + 1 : name;
a7d3cc26 303
ee95669f 304 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 305
ee95669f
LP		 306 if (!streq(table[i], n))
307 continue;
2c4104f0 308
ee95669f
LP		 309 if (!table[i+1])
310 return 0;
311
312 if (!(r = strdup(table[i+1])))
313 return -ENOMEM;
314
315 goto finish;
316 }
2c4104f0 317
a7d3cc26 318 /* If we don't know this name, fallback heuristics to figure
0003d1ab 319 * out whether something is a target or a service alias. */
a7d3cc26 320
2c4104f0 321 if (*name == '$')
ee95669f
LP		 322 /* Facilities starting with $ are most likely targets */
323 r = unit_name_build(n, NULL, ".target");
324 else if (filename && streq(name, filename))
325 /* Names equalling the file name of the services are redundant */
326 return 0;
32159d3a 327 else
ee95669f
LP		 328 /* Everything else we assume to be normal service names */
329 r = sysv_translate_name(n);
2c4104f0 330
32159d3a 331 if (!r)
2c4104f0
LP		 332 return -ENOMEM;
333
334finish:
335
336 if (_r)
337 *_r = r;
338
339 return 1;
340}
341
56d748b4 342static int sysv_fix_order(Service *s) {
2c4104f0
LP		 343 Meta *other;
344 int r;
345
346 assert(s);
347
348 if (s->sysv_start_priority < 0)
349 return 0;
350
23a177ef
LP		 351 /* For each pair of services where at least one lacks a LSB
352 * header, we use the start priority value to order things. */
2c4104f0 353
4cd1fbcc 354 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 355 Service *t;
356 UnitDependency d;
eeaafddc 357 bool special_s, special_t;
2c4104f0
LP		 358
359 t = (Service*) other;
360
361 if (s == t)
362 continue;
9f151f29
LP		 363
364 if (t->meta.load_state != UNIT_LOADED)
365 continue;
2c4104f0
LP		 366
367 if (t->sysv_start_priority < 0)
368 continue;
369
51a1a79d
LP		 370 /* If both units have modern headers we don't care
371 * about the priorities */
f21781d5
LP		 372 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
373 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 374 continue;
375
eeaafddc
LP		 376 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
377 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
378
379 if (special_t && !special_s)
380 d = UNIT_AFTER;
381 else if (special_s && !special_t)
382 d = UNIT_BEFORE;
383 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 384 d = UNIT_AFTER;
385 else if (t->sysv_start_priority > s->sysv_start_priority)
386 d = UNIT_BEFORE;
387 else
388 continue;
389
390 /* FIXME: Maybe we should compare the name here lexicographically? */
391
701cc384 392 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 393 return r;
394 }
395
396 return 0;
397}
398
399static ExecCommand *exec_command_new(const char *path, const char *arg1) {
400 ExecCommand *c;
401
402 if (!(c = new0(ExecCommand, 1)))
403 return NULL;
404
405 if (!(c->path = strdup(path))) {
406 free(c);
407 return NULL;
408 }
409
410 if (!(c->argv = strv_new(path, arg1, NULL))) {
411 free(c->path);
412 free(c);
413 return NULL;
414 }
415
416 return c;
417}
418
419static int sysv_exec_commands(Service *s) {
420 ExecCommand *c;
421
422 assert(s);
423 assert(s->sysv_path);
424
425 if (!(c = exec_command_new(s->sysv_path, "start")))
426 return -ENOMEM;
427 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
428
429 if (!(c = exec_command_new(s->sysv_path, "stop")))
430 return -ENOMEM;
431 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
432
433 if (!(c = exec_command_new(s->sysv_path, "reload")))
434 return -ENOMEM;
435 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
436
437 return 0;
438}
439
e537352b 440static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 441 FILE *f;
442 Unit *u;
443 unsigned line = 0;
444 int r;
445 enum {
446 NORMAL,
447 DESCRIPTION,
448 LSB,
449 LSB_DESCRIPTION
450 } state = NORMAL;
0b5d26f9 451 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 452
453 assert(s);
454 assert(path);
2c4104f0
LP		 455
456 u = UNIT(s);
457
458 if (!(f = fopen(path, "re"))) {
459 r = errno == ENOENT ? 0 : -errno;
460 goto finish;
461 }
462
2c4104f0
LP		 463 free(s->sysv_path);
464 if (!(s->sysv_path = strdup(path))) {
465 r = -ENOMEM;
466 goto finish;
467 }
468
469 while (!feof(f)) {
470 char l[LINE_MAX], *t;
471
472 if (!fgets(l, sizeof(l), f)) {
473 if (feof(f))
474 break;
475
476 r = -errno;
477 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
478 goto finish;
479 }
480
481 line++;
482
483 t = strstrip(l);
484 if (*t != '#')
485 continue;
486
487 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
488 state = LSB;
23a177ef 489 s->sysv_has_lsb = true;
2c4104f0
LP		 490 continue;
491 }
492
493 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
494 state = NORMAL;
495 continue;
496 }
497
498 t++;
499 t += strspn(t, WHITESPACE);
500
501 if (state == NORMAL) {
502
503 /* Try to parse Red Hat style chkconfig headers */
504
c2b35af6 505 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 506 int start_priority;
8309400a 507 char runlevels[16], *k;
2c4104f0
LP		 508
509 state = NORMAL;
510
8309400a
LP		 511 if (sscanf(t+10, "%15s %i %*i",
512 runlevels,
513 &start_priority) != 2) {
2c4104f0
LP		 514
515 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
516 continue;
517 }
518
fbe9f3a9
LP		 519 /* A start priority gathered from the
520 * symlink farms is preferred over the
521 * data from the LSB header. */
8309400a 522 if (start_priority < 0 || start_priority > 99)
2c4104f0 523 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 524 else if (s->sysv_start_priority < 0)
8309400a
LP		 525 s->sysv_start_priority = start_priority;
526
527 char_array_0(runlevels);
528 k = delete_chars(runlevels, WHITESPACE "-");
529
530 if (k[0]) {
531 char *d;
532
533 if (!(d = strdup(k))) {
534 r = -ENOMEM;
535 goto finish;
536 }
537
538 free(s->sysv_runlevels);
539 s->sysv_runlevels = d;
2c4104f0
LP		 540 }
541
0b5d26f9 542 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 543
544 size_t k = strlen(t);
545 char *d;
0b5d26f9 546 const char *j;
2c4104f0
LP		 547
548 if (t[k-1] == '\\') {
549 state = DESCRIPTION;
550 t[k-1] = 0;
551 }
552
0b5d26f9
LP		 553 if ((j = strstrip(t+12)) && *j) {
554 if (!(d = strdup(j))) {
555 r = -ENOMEM;
556 goto finish;
557 }
558 } else
559 d = NULL;
2c4104f0 560
0b5d26f9
LP		 561 free(chkconfig_description);
562 chkconfig_description = d;
2c4104f0 563
c2b35af6 564 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 565
566 char *fn;
567
568 state = NORMAL;
569
570 fn = strstrip(t+8);
571 if (!path_is_absolute(fn)) {
572 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
573 continue;
574 }
575
576 if (!(fn = strdup(fn))) {
577 r = -ENOMEM;
578 goto finish;
579 }
580
581 free(s->pid_file);
582 s->pid_file = fn;
583 }
584
585 } else if (state == DESCRIPTION) {
586
587 /* Try to parse Red Hat style description
588 * continuation */
589
590 size_t k = strlen(t);
0b5d26f9 591 char *j;
2c4104f0
LP		 592
593 if (t[k-1] == '\\')
594 t[k-1] = 0;
595 else
596 state = NORMAL;
597
0b5d26f9
LP		 598 if ((j = strstrip(t)) && *j) {
599 char *d = NULL;
600
601 if (chkconfig_description)
602 asprintf(&d, "%s %s", chkconfig_description, j);
603 else
604 d = strdup(j);
2c4104f0 605
0b5d26f9
LP		 606 if (!d) {
607 r = -ENOMEM;
608 goto finish;
609 }
610
611 free(chkconfig_description);
612 chkconfig_description = d;
613 }
2c4104f0
LP		 614
615 } else if (state == LSB || state == LSB_DESCRIPTION) {
616
c2b35af6 617 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 618 char *i, *w;
619 size_t z;
620
621 state = LSB;
622
f60f22df 623 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 624 char *n, *m;
625
626 if (!(n = strndup(w, z))) {
627 r = -ENOMEM;
628 goto finish;
629 }
630
ee95669f 631 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 632 free(n);
633
634 if (r < 0)
635 goto finish;
636
637 if (r == 0)
638 continue;
639
bd77d0fc
LP		 640 if (unit_name_to_type(m) == UNIT_SERVICE)
641 r = unit_add_name(u, m);
c68364b7
LP		 642 else {
643 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
644
645 if (s->sysv_enabled) {
646 int k;
647
648 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
649 r = k;
650 }
651 }
bd77d0fc 652
2c4104f0 653 if (r < 0)
43a37549 654 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 655
656 free(m);
2c4104f0
LP		 657 }
658
c2b35af6
LP		 659 } else if (startswith_no_case(t, "Required-Start:") ||
660 startswith_no_case(t, "Should-Start:") ||
661 startswith_no_case(t, "X-Start-Before:") ||
662 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 663 char *i, *w;
664 size_t z;
665
666 state = LSB;
667
f60f22df 668 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 669 char *n, *m;
670
671 if (!(n = strndup(w, z))) {
672 r = -ENOMEM;
673 goto finish;
674 }
675
ee95669f 676 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 677 free(n);
678
679 if (r < 0)
680 goto finish;
681
682 if (r == 0)
683 continue;
684
c2b35af6 685 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 686
687 if (r < 0)
43a37549 688 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 689
690 free(m);
2c4104f0 691 }
c2b35af6 692 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 693 char *k, *d;
694
695 state = LSB;
696
697 k = delete_chars(t+14, WHITESPACE "-");
698
699 if (k[0] != 0) {
700 if (!(d = strdup(k))) {
701 r = -ENOMEM;
702 goto finish;
703 }
704
705 free(s->sysv_runlevels);
706 s->sysv_runlevels = d;
707 }
2c4104f0 708
0b5d26f9
LP		 709 } else if (startswith_no_case(t, "Description:")) {
710 char *d, *j;
ed4c1cc6 711
2c4104f0
LP		 712 state = LSB_DESCRIPTION;
713
0b5d26f9
LP		 714 if ((j = strstrip(t+12)) && *j) {
715 if (!(d = strdup(j))) {
716 r = -ENOMEM;
717 goto finish;
718 }
719 } else
720 d = NULL;
2c4104f0 721
0b5d26f9
LP		 722 free(long_description);
723 long_description = d;
2c4104f0 724
ed4c1cc6 725 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 726 char *d, *j;
2c4104f0 727
2c4104f0
LP		 728 state = LSB;
729
0b5d26f9
LP		 730 if ((j = strstrip(t+18)) && *j) {
731 if (!(d = strdup(j))) {
732 r = -ENOMEM;
733 goto finish;
734 }
735 } else
736 d = NULL;
2c4104f0 737
0b5d26f9
LP		 738 free(short_description);
739 short_description = d;
2c4104f0 740
723c83fd
LP		 741 } else if (startswith_no_case(t, "X-Interactive:")) {
742 int b;
743
744 if ((b = parse_boolean(strstrip(t+14))) < 0) {
745 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
746 continue;
747 }
748
749 if (b)
750 s->exec_context.std_input = EXEC_INPUT_TTY;
751 else
752 s->exec_context.std_input = EXEC_INPUT_NULL;
753
2c4104f0
LP		 754 } else if (state == LSB_DESCRIPTION) {
755
756 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 757 char *j;
2c4104f0 758
0b5d26f9
LP		 759 if ((j = strstrip(t)) && *j) {
760 char *d = NULL;
761
762 if (long_description)
763 asprintf(&d, "%s %s", long_description, t);
764 else
765 d = strdup(j);
766
767 if (!d) {
768 r = -ENOMEM;
769 goto finish;
770 }
771
772 free(long_description);
773 long_description = d;
2c4104f0
LP		 774 }
775
2c4104f0
LP		 776 } else
777 state = LSB;
778 }
779 }
780 }
781
2c4104f0
LP		 782 if ((r = sysv_exec_commands(s)) < 0)
783 goto finish;
784
a40eb732 785 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 786 /* If there a runlevels configured for this service
787 * but none of the standard ones, then we assume this
788 * is some special kind of service (which might be
789 * needed for early boot) and don't create any links
790 * to it. */
791
a40eb732 792 s->meta.default_dependencies = false;
09cd1ab1 793
09cd1ab1
LP		 794 /* Don't timeout special services during boot (like fsck) */
795 s->timeout_usec = 0;
f34277d9
LP		 796 } else
797 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 798
80876c20 799 /* Special setting for all SysV services */
1f48cf56 800 s->type = SERVICE_FORKING;
02ee865a 801 s->remain_after_exit = true;
525ee6f4 802 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 803 s->exec_context.std_output =
804 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
805 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
2e22afe9 806 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 807
0b5d26f9
LP		 808 /* We use the long description only if
809 * no short description is set. */
810
811 if (short_description)
812 description = short_description;
813 else if (chkconfig_description)
814 description = chkconfig_description;
815 else if (long_description)
816 description = long_description;
817 else
818 description = NULL;
819
820 if (description) {
821 char *d;
822
823 if (!(d = strappend("LSB: ", description))) {
824 r = -ENOMEM;
825 goto finish;
826 }
827
828 u->meta.description = d;
829 }
830
e537352b 831 u->meta.load_state = UNIT_LOADED;
23a177ef 832 r = 0;
2c4104f0
LP		 833
834finish:
835
836 if (f)
837 fclose(f);
838
0b5d26f9
LP		 839 free(short_description);
840 free(long_description);
841 free(chkconfig_description);
842
2c4104f0
LP		 843 return r;
844}
845
e537352b 846static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 847 char **p;
848
849 assert(s);
850 assert(name);
851
d017c6ca
LP		 852 /* For SysV services we strip the boot. or .sh
853 * prefixes/suffixes. */
854 if (startswith(name, "boot.") ||
855 endswith(name, ".sh.service"))
856 return -ENOENT;
857
4cd1fbcc 858 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 859 char *path;
860 int r;
861
862 if (asprintf(&path, "%s/%s", *p, name) < 0)
863 return -ENOMEM;
864
865 assert(endswith(path, ".service"));
866 path[strlen(path)-8] = 0;
867
e537352b 868 r = service_load_sysv_path(s, path);
fbe9f3a9 869
4cd1fbcc 870 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
d017c6ca 871 /* Try Debian style xxx.sh source'able init scripts */
fbe9f3a9
LP		 872 strcat(path, ".sh");
873 r = service_load_sysv_path(s, path);
874 }
875
2c4104f0
LP		 876 free(path);
877
4cd1fbcc 878 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
cfe243e3 879 /* Try SUSE style boot.xxx init scripts */
fbe9f3a9
LP		 880
881 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
882 return -ENOMEM;
883
884 path[strlen(path)-8] = 0;
885 r = service_load_sysv_path(s, path);
886 free(path);
887 }
888
23a177ef 889 if (r < 0)
2c4104f0 890 return r;
23a177ef 891
4cd1fbcc 892 if ((s->meta.load_state != UNIT_STUB))
23a177ef 893 break;
2c4104f0
LP		 894 }
895
896 return 0;
897}
898
e537352b 899static int service_load_sysv(Service *s) {
2c4104f0
LP		 900 const char *t;
901 Iterator i;
902 int r;
903
5cb5a6ff
LP		 904 assert(s);
905
906 /* Load service data from SysV init scripts, preferably with
907 * LSB headers ... */
908
4cd1fbcc 909 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 910 return 0;
911
4cd1fbcc 912 if ((t = s->meta.id))
e537352b 913 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 914 return r;
915
4cd1fbcc
LP		 916 if (s->meta.load_state == UNIT_STUB)
917 SET_FOREACH(t, s->meta.names, i) {
918 if (t == s->meta.id)
e537352b
LP		 919 continue;
920
e364ad06 921 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 922 return r;
923
4cd1fbcc 924 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 925 break;
926 }
2c4104f0
LP		 927
928 return 0;
5cb5a6ff 929}
07459bb6 930#endif
5cb5a6ff 931
9fff8a1f
LP		 932static int fsck_fix_order(Service *s) {
933 Meta *other;
934 int r;
935
936 assert(s);
937
938 if (s->fsck_passno <= 0)
939 return 0;
940
941 /* For each pair of services where both have an fsck priority
942 * we order things based on it. */
943
944 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
945 Service *t;
946 UnitDependency d;
947
948 t = (Service*) other;
949
950 if (s == t)
951 continue;
952
953 if (t->meta.load_state != UNIT_LOADED)
954 continue;
955
956 if (t->fsck_passno <= 0)
957 continue;
958
959 if (t->fsck_passno < s->fsck_passno)
960 d = UNIT_AFTER;
961 else if (t->fsck_passno > s->fsck_passno)
962 d = UNIT_BEFORE;
963 else
964 continue;
965
966 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
967 return r;
968 }
969
970 return 0;
971}
972
243b1432
LP		 973static int service_verify(Service *s) {
974 assert(s);
975
4cd1fbcc 976 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 977 return 0;
978
979 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 980 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 981 return -EINVAL;
982 }
983
34e9ba66
LP		 984 if (s->type != SERVICE_ONESHOT &&
985 s->exec_command[SERVICE_EXEC_START]->command_next) {
986 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 987 return -EINVAL;
988 }
989
05e343b7 990 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 991 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
992 return -EINVAL;
993 }
994
2e22afe9 995 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 996 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 997 return -EINVAL;
998 }
999
243b1432
LP		 1000 return 0;
1001}
1002
a40eb732
LP		 1003static int service_add_default_dependencies(Service *s) {
1004 int r;
1005
1006 assert(s);
1007
1008 /* Add a number of automatic dependencies useful for the
1009 * majority of services. */
1010
1011 /* First, pull in base system */
1012 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1013
1014 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1015 return r;
1016
1017 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
1018
1019 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1020 return r;
1021 }
1022
1023 /* Second, activate normal shutdown */
69dd2852 1024 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1025}
1026
e537352b
LP		 1027static int service_load(Unit *u) {
1028 int r;
1029 Service *s = SERVICE(u);
1030
1031 assert(s);
1e2e8133 1032
5cb5a6ff 1033 /* Load a .service file */
e537352b 1034 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1035 return r;
1036
07459bb6 1037#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1038 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1039 if (u->meta.load_state == UNIT_STUB)
1040 if ((r = service_load_sysv(s)) < 0)
23a177ef 1041 return r;
07459bb6 1042#endif
d46de8a1 1043
23a177ef 1044 /* Still nothing found? Then let's give up */
e537352b 1045 if (u->meta.load_state == UNIT_STUB)
23a177ef 1046 return -ENOENT;
034c6ed7 1047
23a177ef
LP		 1048 /* We were able to load something, then let's add in the
1049 * dropin directories. */
1050 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1051 return r;
23a177ef
LP		 1052
1053 /* This is a new unit? Then let's add in some extras */
e537352b 1054 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1055 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1056 return r;
1057
1058 if ((r = unit_add_default_cgroup(u)) < 0)
1059 return r;
1060
07459bb6 1061#ifdef HAVE_SYSV_COMPAT
56d748b4 1062 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1063 return r;
07459bb6 1064#endif
05e343b7 1065
9fff8a1f
LP		 1066 if ((r = fsck_fix_order(s)) < 0)
1067 return r;
1068
ee0dd802 1069 if (s->bus_name)
05e343b7 1070 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1071 return r;
c952c6ec
LP		 1072
1073 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1074 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1075
1076 if (s->type == SERVICE_DBUS || s->bus_name)
1077 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1078 return r;
1079
1080 if (s->meta.default_dependencies)
1081 if ((r = service_add_default_dependencies(s)) < 0)
1082 return r;
8e274523
LP		 1083 }
1084
243b1432 1085 return service_verify(s);
034c6ed7
LP		 1086}
1087
87f0e418 1088static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1089
5cb5a6ff 1090 ServiceExecCommand c;
87f0e418 1091 Service *s = SERVICE(u);
47be870b
LP		 1092 const char *prefix2;
1093 char *p2;
5cb5a6ff
LP		 1094
1095 assert(s);
1096
47be870b
LP		 1097 p2 = strappend(prefix, "\t");
1098 prefix2 = p2 ? p2 : prefix;
44d8db9e 1099
5cb5a6ff 1100 fprintf(f,
81a2b7ce
LP		 1101 "%sService State: %s\n"
1102 "%sPermissionsStartOnly: %s\n"
8e274523 1103 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1104 "%sRemainAfterExit: %s\n"
c952c6ec 1105 "%sType: %s\n"
2cf3143a 1106 "%sRestart: %s\n"
c952c6ec 1107 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1108 prefix, service_state_to_string(s->state),
1109 prefix, yes_no(s->permissions_start_only),
8e274523 1110 prefix, yes_no(s->root_directory_start_only),
02ee865a 1111 prefix, yes_no(s->remain_after_exit),
c952c6ec 1112 prefix, service_type_to_string(s->type),
2cf3143a 1113 prefix, service_restart_to_string(s->restart),
c952c6ec 1114 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1115
70123e68
LP		 1116 if (s->control_pid > 0)
1117 fprintf(f,
bb00e604
LP		 1118 "%sControl PID: %lu\n",
1119 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1120
1121 if (s->main_pid > 0)
1122 fprintf(f,
bb00e604
LP		 1123 "%sMain PID: %lu\n",
1124 prefix, (unsigned long) s->main_pid);
70123e68 1125
034c6ed7
LP		 1126 if (s->pid_file)
1127 fprintf(f,
1128 "%sPIDFile: %s\n",
1129 prefix, s->pid_file);
1130
05e343b7
LP		 1131 if (s->bus_name)
1132 fprintf(f,
1133 "%sBusName: %s\n"
1134 "%sBus Name Good: %s\n",
1135 prefix, s->bus_name,
1136 prefix, yes_no(s->bus_name_good));
1137
5cb5a6ff
LP		 1138 exec_context_dump(&s->exec_context, f, prefix);
1139
e537352b 1140 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1141
44d8db9e
LP		 1142 if (!s->exec_command[c])
1143 continue;
1144
40d50879 1145 fprintf(f, "%s-> %s:\n",
94f04347 1146 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1147
1148 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1149 }
44d8db9e 1150
07459bb6 1151#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1152 if (s->sysv_path)
1153 fprintf(f,
23a177ef 1154 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1155 "%sSysV Init Script has LSB Header: %s\n"
1156 "%sSysVEnabled: %s\n",
23a177ef 1157 prefix, s->sysv_path,
9fff8a1f
LP		 1158 prefix, yes_no(s->sysv_has_lsb),
1159 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1160
1161 if (s->sysv_start_priority >= 0)
1162 fprintf(f,
9fff8a1f
LP		 1163 "%sSysVStartPriority: %i\n",
1164 prefix, s->sysv_start_priority);
2c4104f0 1165
8309400a
LP		 1166 if (s->sysv_runlevels)
1167 fprintf(f, "%sSysVRunLevels: %s\n",
1168 prefix, s->sysv_runlevels);
07459bb6 1169#endif
23a177ef 1170
9fff8a1f
LP		 1171 if (s->fsck_passno > 0)
1172 fprintf(f,
1173 "%sFsckPassNo: %i\n",
1174 prefix, s->fsck_passno);
1175
8c47c732
LP		 1176 if (s->status_text)
1177 fprintf(f, "%sStatus Text: %s\n",
1178 prefix, s->status_text);
1179
47be870b 1180 free(p2);
5cb5a6ff
LP		 1181}
1182
034c6ed7
LP		 1183static int service_load_pid_file(Service *s) {
1184 char *k;
034c6ed7 1185 int r;
5925dd3c 1186 pid_t pid;
034c6ed7
LP		 1187
1188 assert(s);
1189
1190 if (s->main_pid_known)
1191 return 0;
1192
5e94833f
LP		 1193 assert(s->main_pid <= 0);
1194
034c6ed7
LP		 1195 if (!s->pid_file)
1196 return -ENOENT;
1197
1198 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1199 return r;
1200
5925dd3c
LP		 1201 r = parse_pid(k, &pid);
1202 free(k);
034c6ed7 1203
5925dd3c
LP		 1204 if (r < 0)
1205 return r;
406eaf93 1206
5925dd3c
LP		 1207 if (kill(pid, 0) < 0 && errno != EPERM) {
1208 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1209 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1210 return -ESRCH;
1211 }
1212
5925dd3c 1213 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1214 return r;
1215
5925dd3c
LP		 1216 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1217 /* FIXME: we need to do something here */
1218 return r;
034c6ed7
LP		 1219
1220 return 0;
1221}
1222
3e33402a
LP		 1223static int service_get_sockets(Service *s, Set **_set) {
1224 Set *set;
ceee3d82
LP		 1225 Iterator i;
1226 char *t;
3e33402a 1227 int r;
ceee3d82
LP		 1228
1229 assert(s);
3e33402a
LP		 1230 assert(_set);
1231
6cf6bbc2
LP		 1232 if (s->socket_fd >= 0)
1233 return 0;
1234
f976f3f6
LP		 1235 if (!set_isempty(s->configured_sockets))
1236 return 0;
1237
3e33402a
LP		 1238 /* Collects all Socket objects that belong to this
1239 * service. Note that a service might have multiple sockets
1240 * via multiple names. */
1241
1242 if (!(set = set_new(NULL, NULL)))
1243 return -ENOMEM;
ceee3d82 1244
4cd1fbcc 1245 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1246 char *k;
1247 Unit *p;
1248
1249 /* Look for all socket objects that go by any of our
1250 * units and collect their fds */
1251
3e33402a
LP		 1252 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1253 r = -ENOMEM;
1254 goto fail;
1255 }
ceee3d82 1256
4cd1fbcc 1257 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1258 free(k);
1259
8d567588
LP		 1260 if (!p)
1261 continue;
ceee3d82 1262
3e33402a
LP		 1263 if ((r = set_put(set, p)) < 0)
1264 goto fail;
ceee3d82
LP		 1265 }
1266
3e33402a
LP		 1267 *_set = set;
1268 return 0;
1269
1270fail:
1271 set_free(set);
1272 return r;
1273}
1274
e537352b 1275static int service_notify_sockets_dead(Service *s) {
3e33402a 1276 Iterator i;
f976f3f6 1277 Set *set, *free_set = NULL;
47be870b 1278 Socket *sock;
3e33402a
LP		 1279 int r;
1280
1281 assert(s);
1282
f976f3f6
LP		 1283 /* Notifies all our sockets when we die */
1284
6cf6bbc2
LP		 1285 if (s->socket_fd >= 0)
1286 return 0;
1287
f976f3f6
LP		 1288 if (!set_isempty(s->configured_sockets))
1289 set = s->configured_sockets;
1290 else {
1291 if ((r = service_get_sockets(s, &free_set)) < 0)
1292 return r;
1293
1294 set = free_set;
1295 }
3e33402a 1296
47be870b
LP		 1297 SET_FOREACH(sock, set, i)
1298 socket_notify_service_dead(sock);
3e33402a 1299
f976f3f6 1300 set_free(free_set);
3e33402a 1301
ceee3d82
LP		 1302 return 0;
1303}
1304
034c6ed7
LP		 1305static void service_set_state(Service *s, ServiceState state) {
1306 ServiceState old_state;
5cb5a6ff
LP		 1307 assert(s);
1308
034c6ed7 1309 old_state = s->state;
5cb5a6ff 1310 s->state = state;
034c6ed7
LP		 1311
1312 if (state != SERVICE_START_PRE &&
1313 state != SERVICE_START &&
1314 state != SERVICE_START_POST &&
1315 state != SERVICE_RELOAD &&
1316 state != SERVICE_STOP &&
1317 state != SERVICE_STOP_SIGTERM &&
1318 state != SERVICE_STOP_SIGKILL &&
1319 state != SERVICE_STOP_POST &&
1320 state != SERVICE_FINAL_SIGTERM &&
1321 state != SERVICE_FINAL_SIGKILL &&
1322 state != SERVICE_AUTO_RESTART)
acbb0225 1323 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1324
7d55e835
LP		 1325 if (state != SERVICE_START &&
1326 state != SERVICE_START_POST &&
034c6ed7
LP		 1327 state != SERVICE_RUNNING &&
1328 state != SERVICE_RELOAD &&
1329 state != SERVICE_STOP &&
1330 state != SERVICE_STOP_SIGTERM &&
1331 state != SERVICE_STOP_SIGKILL)
5e94833f 1332 service_unwatch_main_pid(s);
034c6ed7
LP		 1333
1334 if (state != SERVICE_START_PRE &&
1335 state != SERVICE_START &&
1336 state != SERVICE_START_POST &&
1337 state != SERVICE_RELOAD &&
1338 state != SERVICE_STOP &&
1339 state != SERVICE_STOP_SIGTERM &&
1340 state != SERVICE_STOP_SIGKILL &&
1341 state != SERVICE_STOP_POST &&
1342 state != SERVICE_FINAL_SIGTERM &&
e537352b 1343 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1344 service_unwatch_control_pid(s);
034c6ed7 1345 s->control_command = NULL;
a16e1123 1346 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1347 }
034c6ed7 1348
ceee3d82
LP		 1349 if (state == SERVICE_DEAD ||
1350 state == SERVICE_STOP ||
1351 state == SERVICE_STOP_SIGTERM ||
1352 state == SERVICE_STOP_SIGKILL ||
1353 state == SERVICE_STOP_POST ||
1354 state == SERVICE_FINAL_SIGTERM ||
1355 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1356 state == SERVICE_FAILED ||
ceee3d82 1357 state == SERVICE_AUTO_RESTART)
e537352b 1358 service_notify_sockets_dead(s);
ceee3d82 1359
4f2d528d
LP		 1360 if (state != SERVICE_START_PRE &&
1361 state != SERVICE_START &&
6cf6bbc2
LP		 1362 state != SERVICE_START_POST &&
1363 state != SERVICE_RUNNING &&
1364 state != SERVICE_RELOAD &&
1365 state != SERVICE_STOP &&
1366 state != SERVICE_STOP_SIGTERM &&
1367 state != SERVICE_STOP_SIGKILL &&
1368 state != SERVICE_STOP_POST &&
1369 state != SERVICE_FINAL_SIGTERM &&
1370 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1371 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1372 service_close_socket_fd(s);
6cf6bbc2
LP		 1373 service_connection_unref(s);
1374 }
4f2d528d 1375
f6023656
LP		 1376 /* For the inactive states unit_notify() will trim the cgroup,
1377 * but for exit we have to do that ourselves... */
1378 if (state == SERVICE_EXITED)
1379 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1380
e537352b 1381 if (old_state != state)
4cd1fbcc 1382 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225
LP		 1383
1384 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 1385}
1386
a16e1123
LP		 1387static int service_coldplug(Unit *u) {
1388 Service *s = SERVICE(u);
1389 int r;
1390
1391 assert(s);
1392 assert(s->state == SERVICE_DEAD);
1393
1394 if (s->deserialized_state != s->state) {
1395
1396 if (s->deserialized_state == SERVICE_START_PRE ||
1397 s->deserialized_state == SERVICE_START ||
1398 s->deserialized_state == SERVICE_START_POST ||
1399 s->deserialized_state == SERVICE_RELOAD ||
1400 s->deserialized_state == SERVICE_STOP ||
1401 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1402 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1403 s->deserialized_state == SERVICE_STOP_POST ||
1404 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1405 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1406 s->deserialized_state == SERVICE_AUTO_RESTART) {
1407
1408 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1409 usec_t k;
1410
1411 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1412
1413 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1414 return r;
1415 }
1416 }
a16e1123
LP		 1417
1418 if ((s->deserialized_state == SERVICE_START &&
1419 (s->type == SERVICE_FORKING ||
8c47c732 1420 s->type == SERVICE_DBUS ||
34e9ba66 1421 s->type == SERVICE_ONESHOT ||
8c47c732 1422 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1423 s->deserialized_state == SERVICE_START_POST ||
1424 s->deserialized_state == SERVICE_RUNNING ||
1425 s->deserialized_state == SERVICE_RELOAD ||
1426 s->deserialized_state == SERVICE_STOP ||
1427 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1428 s->deserialized_state == SERVICE_STOP_SIGKILL)
1429 if (s->main_pid > 0)
1430 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1431 return r;
1432
1433 if (s->deserialized_state == SERVICE_START_PRE ||
1434 s->deserialized_state == SERVICE_START ||
1435 s->deserialized_state == SERVICE_START_POST ||
1436 s->deserialized_state == SERVICE_RELOAD ||
1437 s->deserialized_state == SERVICE_STOP ||
1438 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1439 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1440 s->deserialized_state == SERVICE_STOP_POST ||
1441 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1442 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1443 if (s->control_pid > 0)
1444 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1445 return r;
1446
1447 service_set_state(s, s->deserialized_state);
1448 }
1449
1450 return 0;
1451}
1452
44d8db9e
LP		 1453static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1454 Iterator i;
1455 int r;
1456 int *rfds = NULL;
1457 unsigned rn_fds = 0;
f976f3f6 1458 Set *set, *free_set = NULL;
47be870b 1459 Socket *sock;
44d8db9e
LP		 1460
1461 assert(s);
1462 assert(fds);
1463 assert(n_fds);
1464
6cf6bbc2
LP		 1465 if (s->socket_fd >= 0)
1466 return 0;
1467
f976f3f6
LP		 1468 if (!set_isempty(s->configured_sockets))
1469 set = s->configured_sockets;
1470 else {
1471 if ((r = service_get_sockets(s, &free_set)) < 0)
1472 return r;
1473
1474 set = free_set;
1475 }
3e33402a 1476
47be870b 1477 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1478 int *cfds;
1479 unsigned cn_fds;
1480
47be870b 1481 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1482 goto fail;
1483
1484 if (!cfds)
1485 continue;
1486
1487 if (!rfds) {
1488 rfds = cfds;
1489 rn_fds = cn_fds;
1490 } else {
1491 int *t;
1492
1493 if (!(t = new(int, rn_fds+cn_fds))) {
1494 free(cfds);
1495 r = -ENOMEM;
1496 goto fail;
1497 }
1498
1499 memcpy(t, rfds, rn_fds);
1500 memcpy(t+rn_fds, cfds, cn_fds);
1501 free(rfds);
1502 free(cfds);
1503
1504 rfds = t;
1505 rn_fds = rn_fds+cn_fds;
1506 }
1507 }
1508
1509 *fds = rfds;
1510 *n_fds = rn_fds;
3e33402a 1511
f976f3f6 1512 set_free(free_set);
3e33402a 1513
44d8db9e
LP		 1514 return 0;
1515
1516fail:
3e33402a 1517 set_free(set);
44d8db9e 1518 free(rfds);
3e33402a 1519
44d8db9e
LP		 1520 return r;
1521}
1522
81a2b7ce
LP		 1523static int service_spawn(
1524 Service *s,
1525 ExecCommand *c,
1526 bool timeout,
1527 bool pass_fds,
1528 bool apply_permissions,
1529 bool apply_chroot,
1e3ad081 1530 bool apply_tty_stdin,
c952c6ec 1531 bool set_notify_socket,
81a2b7ce
LP		 1532 pid_t *_pid) {
1533
034c6ed7
LP		 1534 pid_t pid;
1535 int r;
6cf6bbc2 1536 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1537 unsigned n_fds = 0, n_env = 0;
1538 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1539
1540 assert(s);
1541 assert(c);
1542 assert(_pid);
1543
6cf6bbc2
LP		 1544 if (pass_fds ||
1545 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1546 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1547 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1548
4f2d528d
LP		 1549 if (s->socket_fd >= 0) {
1550 fds = &s->socket_fd;
1551 n_fds = 1;
6cf6bbc2
LP		 1552 } else {
1553 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1554 goto fail;
1555
1556 fds = fdsbuf;
1557 }
4f2d528d 1558 }
44d8db9e 1559
e558336f 1560 if (timeout && s->timeout_usec) {
acbb0225 1561 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1562 goto fail;
1563 } else
acbb0225 1564 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1565
9e2f7c11
LP		 1566 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1567 r = -ENOMEM;
1568 goto fail;
1569 }
1570
9865f3b4 1571 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1572 r = -ENOMEM;
1573 goto fail;
1574 }
c952c6ec 1575
2105e76a
LP		 1576 if (set_notify_socket)
1577 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1578 r = -ENOMEM;
1579 goto fail;
1580 }
1581
2105e76a
LP		 1582 if (s->main_pid > 0)
1583 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1584 r = -ENOMEM;
1585 goto fail;
1586 }
2105e76a 1587
0320828c 1588#ifdef HAVE_SYSV_COMPAT
9865f3b4
LP		 1589 /* Make sure we set TERM=linux for SysV scripts, since some
1590 * require it to be set from the kernel */
1591 if (s->sysv_path && !strv_env_get(s->meta.manager->environment, "TERM"))
1592 if (!(our_env[n_env++] = strdup("TERM=linux"))) {
1593 r = -ENOMEM;
1594 goto fail;
1595 }
0320828c 1596#endif
9865f3b4 1597
2105e76a
LP		 1598 if (!(final_env = strv_env_merge(2,
1599 s->meta.manager->environment,
1600 our_env,
1601 NULL))) {
1602 r = -ENOMEM;
1603 goto fail;
1604 }
c952c6ec 1605
9e2f7c11
LP		 1606 r = exec_spawn(c,
1607 argv,
1608 &s->exec_context,
1609 fds, n_fds,
2105e76a 1610 final_env,
9e2f7c11
LP		 1611 apply_permissions,
1612 apply_chroot,
1e3ad081 1613 apply_tty_stdin,
4cd1fbcc
LP		 1614 s->meta.manager->confirm_spawn,
1615 s->meta.cgroup_bondings,
9e2f7c11
LP		 1616 &pid);
1617
9e2f7c11 1618 if (r < 0)
034c6ed7
LP		 1619 goto fail;
1620
4f2d528d 1621
87f0e418 1622 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1623 /* FIXME: we need to do something here */
1624 goto fail;
1625
2105e76a
LP		 1626 free(fdsbuf);
1627 strv_free(argv);
1628 strv_free(our_env);
1629 strv_free(final_env);
1630
034c6ed7
LP		 1631 *_pid = pid;
1632
5cb5a6ff 1633 return 0;
034c6ed7
LP		 1634
1635fail:
2105e76a 1636 free(fdsbuf);
c952c6ec 1637 strv_free(argv);
2105e76a
LP		 1638 strv_free(our_env);
1639 strv_free(final_env);
c952c6ec 1640
034c6ed7 1641 if (timeout)
acbb0225 1642 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1643
1644 return r;
1645}
1646
80876c20
LP		 1647static int main_pid_good(Service *s) {
1648 assert(s);
1649
1650 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1651 * don't know */
1652
1653 /* If we know the pid file, then lets just check if it is
1654 * still valid */
1655 if (s->main_pid_known)
1656 return s->main_pid > 0;
1657
1658 /* We don't know the pid */
1659 return -EAGAIN;
1660}
1661
1662static int control_pid_good(Service *s) {
1663 assert(s);
1664
1665 return s->control_pid > 0;
1666}
1667
1668static int cgroup_good(Service *s) {
1669 int r;
1670
1671 assert(s);
1672
4cd1fbcc 1673 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1674 return r;
1675
1676 return !r;
1677}
1678
034c6ed7
LP		 1679static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1680 int r;
1681 assert(s);
1682
1683 if (!success)
1684 s->failure = true;
1685
1686 if (allow_restart &&
47342320 1687 !s->forbid_restart &&
034c6ed7 1688 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1689 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1690 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1691 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1692 (s->main_exec_status.code == CLD_KILLED ||
1693 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1694
acbb0225 1695 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1696 goto fail;
1697
1698 service_set_state(s, SERVICE_AUTO_RESTART);
1699 } else
fdf20a31 1700 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1701
47342320
LP		 1702 s->forbid_restart = false;
1703
034c6ed7
LP		 1704 return;
1705
1706fail:
4cd1fbcc 1707 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1708 service_enter_dead(s, false, false);
1709}
1710
1711static void service_enter_signal(Service *s, ServiceState state, bool success);
1712
1713static void service_enter_stop_post(Service *s, bool success) {
1714 int r;
1715 assert(s);
1716
1717 if (!success)
1718 s->failure = true;
1719
5e94833f
LP		 1720 service_unwatch_control_pid(s);
1721
a16e1123 1722 s->control_command_id = SERVICE_EXEC_STOP_POST;
80876c20 1723 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
81a2b7ce
LP		 1724 if ((r = service_spawn(s,
1725 s->control_command,
1726 true,
1727 false,
1728 !s->permissions_start_only,
1729 !s->root_directory_start_only,
1e3ad081 1730 true,
c952c6ec 1731 false,
81a2b7ce 1732 &s->control_pid)) < 0)
034c6ed7
LP		 1733 goto fail;
1734
d6ea93e3 1735
80876c20
LP		 1736 service_set_state(s, SERVICE_STOP_POST);
1737 } else
1738 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1739
1740 return;
1741
1742fail:
4cd1fbcc 1743 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1744 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1745}
1746
1747static void service_enter_signal(Service *s, ServiceState state, bool success) {
1748 int r;
ca949c9d
LP		 1749 Set *pid_set = NULL;
1750 bool wait_for_exit = false;
034c6ed7
LP		 1751
1752 assert(s);
1753
1754 if (!success)
1755 s->failure = true;
1756
2e22afe9
LP		 1757 if (s->exec_context.kill_mode != KILL_NONE) {
1758 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1759
ca949c9d
LP		 1760 if (s->main_pid > 0) {
1761 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1762 -s->main_pid :
1763 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1764
ca949c9d
LP		 1765 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1766 else
1767 wait_for_exit = true;
034c6ed7
LP		 1768 }
1769
ca949c9d
LP		 1770 if (s->control_pid > 0) {
1771 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1772 -s->control_pid :
1773 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1774
ca949c9d
LP		 1775 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1776 else
1777 wait_for_exit = true;
1778 }
50159e6a 1779
ca949c9d 1780 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1781
ca949c9d
LP		 1782 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1783 r = -ENOMEM;
50159e6a 1784 goto fail;
ca949c9d
LP		 1785 }
1786
1787 /* Exclude the main/control pids from being killed via the cgroup */
1788 if (s->main_pid > 0)
1789 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1790 goto fail;
1791
1792 if (s->control_pid > 0)
1793 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1794 goto fail;
1795
1796 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1797 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1798 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1799 } else if (r > 0)
ca949c9d
LP		 1800 wait_for_exit = true;
1801
1802 set_free(pid_set);
50159e6a 1803 }
d6ea93e3 1804 }
034c6ed7 1805
ca949c9d 1806 if (wait_for_exit) {
e558336f
LP		 1807 if (s->timeout_usec > 0)
1808 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1809 goto fail;
d6ea93e3 1810
80876c20
LP		 1811 service_set_state(s, state);
1812 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1813 service_enter_stop_post(s, true);
1814 else
034c6ed7
LP		 1815 service_enter_dead(s, true, true);
1816
1817 return;
1818
1819fail:
4cd1fbcc 1820 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1821
80876c20 1822 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1823 service_enter_stop_post(s, false);
1824 else
1825 service_enter_dead(s, false, true);
ca949c9d
LP		 1826
1827 if (pid_set)
1828 set_free(pid_set);
034c6ed7
LP		 1829}
1830
1831static void service_enter_stop(Service *s, bool success) {
1832 int r;
5925dd3c 1833
034c6ed7
LP		 1834 assert(s);
1835
1836 if (!success)
1837 s->failure = true;
1838
5e94833f
LP		 1839 service_unwatch_control_pid(s);
1840
a16e1123 1841 s->control_command_id = SERVICE_EXEC_STOP;
80876c20 1842 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
81a2b7ce
LP		 1843 if ((r = service_spawn(s,
1844 s->control_command,
1845 true,
1846 false,
1847 !s->permissions_start_only,
1848 !s->root_directory_start_only,
c952c6ec 1849 false,
1e3ad081 1850 false,
e55224ca 1851 &s->control_pid)) < 0)
034c6ed7
LP		 1852 goto fail;
1853
80876c20
LP		 1854 service_set_state(s, SERVICE_STOP);
1855 } else
034c6ed7
LP		 1856 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1857
1858 return;
1859
1860fail:
4cd1fbcc 1861 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1862 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1863}
1864
80876c20 1865static void service_enter_running(Service *s, bool success) {
4eab639f 1866 int main_pid_ok, cgroup_ok;
80876c20
LP		 1867 assert(s);
1868
1869 if (!success)
1870 s->failure = true;
1871
4eab639f
LP		 1872 main_pid_ok = main_pid_good(s);
1873 cgroup_ok = cgroup_good(s);
1874
1875 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1876 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1877 service_set_state(s, SERVICE_RUNNING);
02ee865a 1878 else if (s->remain_after_exit)
80876c20
LP		 1879 service_set_state(s, SERVICE_EXITED);
1880 else
1881 service_enter_stop(s, true);
1882}
1883
034c6ed7
LP		 1884static void service_enter_start_post(Service *s) {
1885 int r;
1886 assert(s);
1887
5e94833f
LP		 1888 service_unwatch_control_pid(s);
1889
a16e1123 1890 s->control_command_id = SERVICE_EXEC_START_POST;
80876c20 1891 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
81a2b7ce
LP		 1892 if ((r = service_spawn(s,
1893 s->control_command,
1894 true,
1895 false,
1896 !s->permissions_start_only,
1897 !s->root_directory_start_only,
c952c6ec 1898 false,
1e3ad081 1899 false,
e55224ca 1900 &s->control_pid)) < 0)
034c6ed7
LP		 1901 goto fail;
1902
80876c20
LP		 1903 service_set_state(s, SERVICE_START_POST);
1904 } else
1905 service_enter_running(s, true);
034c6ed7
LP		 1906
1907 return;
1908
1909fail:
4cd1fbcc 1910 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1911 service_enter_stop(s, false);
1912}
1913
1914static void service_enter_start(Service *s) {
1915 pid_t pid;
1916 int r;
1917
1918 assert(s);
1919
1920 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 1921 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 1922
80876c20
LP		 1923 if (s->type == SERVICE_FORKING)
1924 service_unwatch_control_pid(s);
1925 else
1926 service_unwatch_main_pid(s);
1927
34e9ba66
LP		 1928 s->control_command_id = SERVICE_EXEC_START;
1929 s->control_command = s->exec_command[SERVICE_EXEC_START];
1930
81a2b7ce 1931 if ((r = service_spawn(s,
34e9ba66 1932 s->control_command,
8c47c732 1933 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 1934 true,
1935 true,
1936 true,
1e3ad081 1937 true,
c952c6ec 1938 s->notify_access != NOTIFY_NONE,
81a2b7ce 1939 &pid)) < 0)
034c6ed7
LP		 1940 goto fail;
1941
1942 if (s->type == SERVICE_SIMPLE) {
1943 /* For simple services we immediately start
1944 * the START_POST binaries. */
1945
5925dd3c 1946 service_set_main_pid(s, pid);
034c6ed7
LP		 1947 service_enter_start_post(s);
1948
1949 } else if (s->type == SERVICE_FORKING) {
1950
1951 /* For forking services we wait until the start
1952 * process exited. */
1953
e55224ca 1954 s->control_pid = pid;
80876c20
LP		 1955 service_set_state(s, SERVICE_START);
1956
34e9ba66 1957 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 1958 s->type == SERVICE_DBUS ||
1959 s->type == SERVICE_NOTIFY) {
7d55e835 1960
34e9ba66 1961 /* For oneshot services we wait until the start
7d55e835
LP		 1962 * process exited, too, but it is our main process. */
1963
05e343b7 1964 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 1965 * but wait for the bus name to appear on the
1966 * bus. Notify services are similar. */
05e343b7 1967
5925dd3c 1968 service_set_main_pid(s, pid);
80876c20 1969 service_set_state(s, SERVICE_START);
034c6ed7
LP		 1970 } else
1971 assert_not_reached("Unknown service type");
1972
1973 return;
1974
1975fail:
4cd1fbcc 1976 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 1977 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 1978}
1979
1980static void service_enter_start_pre(Service *s) {
1981 int r;
1982
1983 assert(s);
1984
5e94833f
LP		 1985 service_unwatch_control_pid(s);
1986
a16e1123 1987 s->control_command_id = SERVICE_EXEC_START_PRE;
80876c20 1988 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
81a2b7ce
LP		 1989 if ((r = service_spawn(s,
1990 s->control_command,
1991 true,
1992 false,
1993 !s->permissions_start_only,
1994 !s->root_directory_start_only,
1e3ad081 1995 true,
c952c6ec 1996 false,
e55224ca 1997 &s->control_pid)) < 0)
034c6ed7
LP		 1998 goto fail;
1999
80876c20
LP		 2000 service_set_state(s, SERVICE_START_PRE);
2001 } else
034c6ed7
LP		 2002 service_enter_start(s);
2003
2004 return;
2005
2006fail:
4cd1fbcc 2007 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2008 service_enter_dead(s, false, true);
2009}
2010
2011static void service_enter_restart(Service *s) {
2012 int r;
398ef8ba
LP		 2013 DBusError error;
2014
034c6ed7 2015 assert(s);
398ef8ba 2016 dbus_error_init(&error);
034c6ed7 2017
9ea9a0c8
LP		 2018 service_enter_dead(s, true, false);
2019
7b2603e6 2020 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2021 goto fail;
2022
4cd1fbcc 2023 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2024 return;
2025
2026fail:
398ef8ba 2027 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2028 service_enter_dead(s, false, false);
398ef8ba
LP		 2029
2030 dbus_error_free(&error);
034c6ed7
LP		 2031}
2032
2033static void service_enter_reload(Service *s) {
2034 int r;
2035
2036 assert(s);
2037
5e94833f
LP		 2038 service_unwatch_control_pid(s);
2039
a16e1123 2040 s->control_command_id = SERVICE_EXEC_RELOAD;
80876c20 2041 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
81a2b7ce
LP		 2042 if ((r = service_spawn(s,
2043 s->control_command,
2044 true,
2045 false,
2046 !s->permissions_start_only,
2047 !s->root_directory_start_only,
c952c6ec 2048 false,
1e3ad081 2049 false,
e55224ca 2050 &s->control_pid)) < 0)
034c6ed7
LP		 2051 goto fail;
2052
80876c20
LP		 2053 service_set_state(s, SERVICE_RELOAD);
2054 } else
2055 service_enter_running(s, true);
034c6ed7
LP		 2056
2057 return;
2058
2059fail:
4cd1fbcc 2060 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2061 service_enter_stop(s, false);
2062}
2063
34e9ba66 2064static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2065 int r;
2066
2067 assert(s);
2068 assert(s->control_command);
2069 assert(s->control_command->command_next);
2070
2071 if (!success)
2072 s->failure = true;
2073
34e9ba66 2074 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2075
34e9ba66 2076 s->control_command = s->control_command->command_next;
5e94833f
LP		 2077 service_unwatch_control_pid(s);
2078
81a2b7ce
LP		 2079 if ((r = service_spawn(s,
2080 s->control_command,
2081 true,
2082 false,
2083 !s->permissions_start_only,
2084 !s->root_directory_start_only,
5830833f
LP		 2085 s->control_command_id == SERVICE_EXEC_START_PRE ||
2086 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2087 false,
e55224ca 2088 &s->control_pid)) < 0)
034c6ed7
LP		 2089 goto fail;
2090
2091 return;
2092
2093fail:
34e9ba66 2094 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2095
80876c20
LP		 2096 if (s->state == SERVICE_START_PRE)
2097 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2098 else if (s->state == SERVICE_STOP)
2099 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2100 else if (s->state == SERVICE_STOP_POST)
2101 service_enter_dead(s, false, true);
2102 else
2103 service_enter_stop(s, false);
5cb5a6ff
LP		 2104}
2105
34e9ba66
LP		 2106static void service_run_next_main(Service *s, bool success) {
2107 pid_t pid;
2108 int r;
2109
2110 assert(s);
2111 assert(s->control_command);
2112 assert(s->control_command->command_next);
2113
2114 if (!success)
2115 s->failure = true;
2116
2117 assert(s->control_command_id == SERVICE_EXEC_START);
2118 assert(s->type == SERVICE_ONESHOT);
2119
2120 s->control_command = s->control_command->command_next;
2121 service_unwatch_main_pid(s);
2122
2123 if ((r = service_spawn(s,
2124 s->control_command,
2125 false,
2126 true,
2127 true,
2128 true,
2129 true,
2130 s->notify_access != NOTIFY_NONE,
2131 &pid)) < 0)
2132 goto fail;
2133
2134 service_set_main_pid(s, pid);
2135
2136 return;
2137
2138fail:
2139 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2140 service_enter_stop(s, false);
2141}
2142
87f0e418
LP		 2143static int service_start(Unit *u) {
2144 Service *s = SERVICE(u);
5cb5a6ff
LP		 2145
2146 assert(s);
2147
034c6ed7
LP		 2148 /* We cannot fulfill this request right now, try again later
2149 * please! */
2150 if (s->state == SERVICE_STOP ||
2151 s->state == SERVICE_STOP_SIGTERM ||
2152 s->state == SERVICE_STOP_SIGKILL ||
2153 s->state == SERVICE_STOP_POST ||
2154 s->state == SERVICE_FINAL_SIGTERM ||
2155 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2156 return -EAGAIN;
2157
034c6ed7
LP		 2158 /* Already on it! */
2159 if (s->state == SERVICE_START_PRE ||
2160 s->state == SERVICE_START ||
2161 s->state == SERVICE_START_POST)
2162 return 0;
2163
fdf20a31 2164 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2165
1e2e8133
LP		 2166 /* Make sure we don't enter a busy loop of some kind. */
2167 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2168 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2169 return -ECANCELED;
1e2e8133
LP		 2170 }
2171
034c6ed7
LP		 2172 s->failure = false;
2173 s->main_pid_known = false;
47342320 2174 s->forbid_restart = false;
034c6ed7
LP		 2175
2176 service_enter_start_pre(s);
2177 return 0;
5cb5a6ff
LP		 2178}
2179
87f0e418
LP		 2180static int service_stop(Unit *u) {
2181 Service *s = SERVICE(u);
5cb5a6ff
LP		 2182
2183 assert(s);
2184
3f6c78dc
LP		 2185 /* This is a user request, so don't do restarts on this
2186 * shutdown. */
47342320 2187 s->forbid_restart = true;
034c6ed7 2188
e537352b
LP		 2189 /* Already on it */
2190 if (s->state == SERVICE_STOP ||
2191 s->state == SERVICE_STOP_SIGTERM ||
2192 s->state == SERVICE_STOP_SIGKILL ||
2193 s->state == SERVICE_STOP_POST ||
2194 s->state == SERVICE_FINAL_SIGTERM ||
2195 s->state == SERVICE_FINAL_SIGKILL)
2196 return 0;
2197
3f6c78dc 2198 /* Don't allow a restart */
034c6ed7
LP		 2199 if (s->state == SERVICE_AUTO_RESTART) {
2200 service_set_state(s, SERVICE_DEAD);
2201 return 0;
2202 }
2203
3f6c78dc
LP		 2204 /* If there's already something running we go directly into
2205 * kill mode. */
2206 if (s->state == SERVICE_START_PRE ||
2207 s->state == SERVICE_START ||
2208 s->state == SERVICE_START_POST ||
2209 s->state == SERVICE_RELOAD) {
2210 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2211 return 0;
2212 }
5cb5a6ff 2213
3f6c78dc
LP		 2214 assert(s->state == SERVICE_RUNNING ||
2215 s->state == SERVICE_EXITED);
3a762661 2216
034c6ed7 2217 service_enter_stop(s, true);
5cb5a6ff
LP		 2218 return 0;
2219}
2220
87f0e418
LP		 2221static int service_reload(Unit *u) {
2222 Service *s = SERVICE(u);
034c6ed7
LP		 2223
2224 assert(s);
2225
80876c20 2226 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2227
2228 service_enter_reload(s);
5cb5a6ff
LP		 2229 return 0;
2230}
2231
87f0e418
LP		 2232static bool service_can_reload(Unit *u) {
2233 Service *s = SERVICE(u);
034c6ed7
LP		 2234
2235 assert(s);
2236
2237 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2238}
2239
a16e1123
LP		 2240static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2241 Service *s = SERVICE(u);
2242
2243 assert(u);
2244 assert(f);
2245 assert(fds);
2246
2247 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2248 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2249
2250 if (s->control_pid > 0)
5925dd3c 2251 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2252
5925dd3c
LP		 2253 if (s->main_pid_known && s->main_pid > 0)
2254 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2255
2256 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2257
3a2776bc
LP		 2258 if (s->status_text)
2259 unit_serialize_item(u, f, "status-text", s->status_text);
2260
a16e1123
LP		 2261 /* There's a minor uncleanliness here: if there are multiple
2262 * commands attached here, we will start from the first one
2263 * again */
2264 if (s->control_command_id >= 0)
825636e5 2265 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2266
2267 if (s->socket_fd >= 0) {
2268 int copy;
2269
2270 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2271 return copy;
2272
2273 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2274 }
2275
ecdbca40
LP		 2276 if (s->main_exec_status.pid > 0) {
2277 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2278
2279 if (s->main_exec_status.start_timestamp.realtime > 0) {
2280 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
2281 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2282
2283 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2284 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2285 }
2286
2287 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2288 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2289 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2290 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2291 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2292
2293 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2294 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2295 }
2296 }
2297
a16e1123
LP		 2298 return 0;
2299}
2300
2301static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2302 Service *s = SERVICE(u);
a16e1123
LP		 2303
2304 assert(u);
2305 assert(key);
2306 assert(value);
2307 assert(fds);
2308
2309 if (streq(key, "state")) {
2310 ServiceState state;
2311
2312 if ((state = service_state_from_string(value)) < 0)
2313 log_debug("Failed to parse state value %s", value);
2314 else
2315 s->deserialized_state = state;
2316 } else if (streq(key, "failure")) {
2317 int b;
2318
2319 if ((b = parse_boolean(value)) < 0)
2320 log_debug("Failed to parse failure value %s", value);
2321 else
2322 s->failure = b || s->failure;
2323 } else if (streq(key, "control-pid")) {
5925dd3c 2324 pid_t pid;
a16e1123 2325
e364ad06 2326 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2327 log_debug("Failed to parse control-pid value %s", value);
2328 else
e55224ca 2329 s->control_pid = pid;
a16e1123 2330 } else if (streq(key, "main-pid")) {
5925dd3c 2331 pid_t pid;
a16e1123 2332
e364ad06 2333 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2334 log_debug("Failed to parse main-pid value %s", value);
2335 else
5925dd3c 2336 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2337 } else if (streq(key, "main-pid-known")) {
2338 int b;
2339
2340 if ((b = parse_boolean(value)) < 0)
2341 log_debug("Failed to parse main-pid-known value %s", value);
2342 else
2343 s->main_pid_known = b;
3a2776bc
LP		 2344 } else if (streq(key, "status-text")) {
2345 char *t;
2346
2347 if ((t = strdup(value))) {
2348 free(s->status_text);
2349 s->status_text = t;
2350 }
2351
a16e1123
LP		 2352 } else if (streq(key, "control-command")) {
2353 ServiceExecCommand id;
2354
2355 if ((id = service_exec_command_from_string(value)) < 0)
2356 log_debug("Failed to parse exec-command value %s", value);
2357 else {
2358 s->control_command_id = id;
2359 s->control_command = s->exec_command[id];
2360 }
2361 } else if (streq(key, "socket-fd")) {
2362 int fd;
2363
2364 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2365 log_debug("Failed to parse socket-fd value %s", value);
2366 else {
2367
2368 if (s->socket_fd >= 0)
2369 close_nointr_nofail(s->socket_fd);
2370 s->socket_fd = fdset_remove(fds, fd);
2371 }
ecdbca40
LP		 2372 } else if (streq(key, "main-exec-status-pid")) {
2373 pid_t pid;
2374
e364ad06 2375 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2376 log_debug("Failed to parse main-exec-status-pid value %s", value);
2377 else
2378 s->main_exec_status.pid = pid;
2379 } else if (streq(key, "main-exec-status-code")) {
2380 int i;
2381
e364ad06 2382 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2383 log_debug("Failed to parse main-exec-status-code value %s", value);
2384 else
2385 s->main_exec_status.code = i;
2386 } else if (streq(key, "main-exec-status-status")) {
2387 int i;
2388
e364ad06 2389 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2390 log_debug("Failed to parse main-exec-status-status value %s", value);
2391 else
2392 s->main_exec_status.status = i;
2393 } else if (streq(key, "main-exec-status-start-realtime")) {
2394 uint64_t k;
2395
e364ad06 2396 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2397 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2398 else
2399 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2400 } else if (streq(key, "main-exec-status-start-monotonic")) {
2401 uint64_t k;
2402
e364ad06 2403 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2404 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2405 else
2406 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2407 } else if (streq(key, "main-exec-status-exit-realtime")) {
2408 uint64_t k;
2409
e364ad06 2410 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2411 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2412 else
2413 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2414 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2415 uint64_t k;
2416
e364ad06 2417 if (safe_atou64(value, &k) < 0)
ecdbca40
LP		 2418 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2419 else
2420 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
a16e1123
LP		 2421 } else
2422 log_debug("Unknown serialization key '%s'", key);
2423
2424 return 0;
2425}
2426
87f0e418
LP		 2427static UnitActiveState service_active_state(Unit *u) {
2428 assert(u);
5cb5a6ff 2429
acbb0225 2430 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2431}
2432
10a94420
LP		 2433static const char *service_sub_state_to_string(Unit *u) {
2434 assert(u);
2435
2436 return service_state_to_string(SERVICE(u)->state);
2437}
2438
07459bb6 2439#ifdef HAVE_SYSV_COMPAT
701cc384
LP		 2440static bool service_check_gc(Unit *u) {
2441 Service *s = SERVICE(u);
2442
2443 assert(s);
2444
2445 return !!s->sysv_path;
2446}
07459bb6 2447#endif
701cc384
LP		 2448
2449static bool service_check_snapshot(Unit *u) {
2450 Service *s = SERVICE(u);
2451
2452 assert(s);
2453
2454 return !s->got_socket_fd;
2455}
2456
87f0e418
LP		 2457static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2458 Service *s = SERVICE(u);
034c6ed7 2459 bool success;
5cb5a6ff
LP		 2460
2461 assert(s);
034c6ed7
LP		 2462 assert(pid >= 0);
2463
f21781d5 2464 if (!s->meta.fragment_path)
d06dacd0
LP		 2465 success = is_clean_exit_lsb(code, status);
2466 else
2467 success = is_clean_exit(code, status);
034c6ed7
LP		 2468
2469 if (s->main_pid == pid) {
2470
034c6ed7 2471 s->main_pid = 0;
169c1bda 2472 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
034c6ed7 2473
34e9ba66
LP		 2474 if (s->type != SERVICE_FORKING && s->control_command) {
2475 s->control_command->exec_status = s->main_exec_status;
b708e7ce 2476
34e9ba66 2477 if (s->control_command->ignore)
b708e7ce 2478 success = true;
034c6ed7
LP		 2479 }
2480
92abbefb
LP		 2481 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2482 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2483 s->failure = s->failure || !success;
034c6ed7 2484
34e9ba66
LP		 2485 if (s->control_command &&
2486 s->control_command->command_next &&
2487 success) {
034c6ed7 2488
34e9ba66
LP		 2489 /* There is another command to *
2490 * execute, so let's do that. */
034c6ed7 2491
34e9ba66
LP		 2492 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2493 service_run_next_main(s, success);
034c6ed7 2494
34e9ba66
LP		 2495 } else {
2496
2497 /* The service exited, so the service is officially
2498 * gone. */
2499
2500 s->control_command = NULL;
2501 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2502
2503 switch (s->state) {
2504
2505 case SERVICE_START_POST:
2506 case SERVICE_RELOAD:
2507 case SERVICE_STOP:
2508 /* Need to wait until the operation is
2509 * done */
c4653a4d 2510 break;
7d55e835 2511
34e9ba66
LP		 2512 case SERVICE_START:
2513 if (s->type == SERVICE_ONESHOT) {
2514 /* This was our main goal, so let's go on */
2515 if (success)
2516 service_enter_start_post(s);
2517 else
2518 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2519 break;
2520 } else {
2521 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2522
34e9ba66
LP		 2523 /* Fall through */
2524 }
034c6ed7 2525
34e9ba66
LP		 2526 case SERVICE_RUNNING:
2527 service_enter_running(s, success);
2528 break;
034c6ed7 2529
34e9ba66
LP		 2530 case SERVICE_STOP_SIGTERM:
2531 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2532
34e9ba66
LP		 2533 if (!control_pid_good(s))
2534 service_enter_stop_post(s, success);
5cb5a6ff 2535
34e9ba66
LP		 2536 /* If there is still a control process, wait for that first */
2537 break;
2538
2539 default:
2540 assert_not_reached("Uh, main process died at wrong time.");
2541 }
034c6ed7 2542 }
5cb5a6ff 2543
034c6ed7 2544 } else if (s->control_pid == pid) {
034c6ed7 2545
34e9ba66
LP		 2546 s->control_pid = 0;
2547
b708e7ce 2548 if (s->control_command) {
169c1bda 2549 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 2550
b708e7ce
LP		 2551 if (s->control_command->ignore)
2552 success = true;
2553 }
2554
34e9ba66 2555 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2556 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2557 s->failure = s->failure || !success;
034c6ed7 2558
34e9ba66
LP		 2559 if (s->control_command &&
2560 s->control_command->command_next &&
2561 success) {
034c6ed7
LP		 2562
2563 /* There is another command to *
2564 * execute, so let's do that. */
2565
34e9ba66
LP		 2566 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2567 service_run_next_control(s, success);
034c6ed7 2568
80876c20 2569 } else {
034c6ed7
LP		 2570 /* No further commands for this step, so let's
2571 * figure out what to do next */
2572
a16e1123
LP		 2573 s->control_command = NULL;
2574 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2575
9e2f7c11 2576 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2577
034c6ed7
LP		 2578 switch (s->state) {
2579
2580 case SERVICE_START_PRE:
2581 if (success)
2582 service_enter_start(s);
2583 else
80876c20 2584 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2585 break;
2586
2587 case SERVICE_START:
2588 assert(s->type == SERVICE_FORKING);
2589
2590 /* Let's try to load the pid
2591 * file here if we can. We
2592 * ignore the return value,
2593 * since the PID file might
2594 * actually be created by a
2595 * START_POST script */
2596
2597 if (success) {
2598 if (s->pid_file)
2599 service_load_pid_file(s);
2600
2601 service_enter_start_post(s);
2602 } else
80876c20 2603 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2604
2605 break;
2606
2607 case SERVICE_START_POST:
2608 if (success && s->pid_file && !s->main_pid_known) {
2609 int r;
2610
2611 /* Hmm, let's see if we can
2612 * load the pid now after the
2613 * start-post scripts got
2614 * executed. */
2615
2616 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2617 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2618 }
2619
2620 /* Fall through */
2621
2622 case SERVICE_RELOAD:
80876c20
LP		 2623 if (success)
2624 service_enter_running(s, true);
2625 else
034c6ed7
LP		 2626 service_enter_stop(s, false);
2627
2628 break;
2629
2630 case SERVICE_STOP:
80876c20 2631 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2632 break;
2633
2634 case SERVICE_STOP_SIGTERM:
2635 case SERVICE_STOP_SIGKILL:
2636 if (main_pid_good(s) <= 0)
2637 service_enter_stop_post(s, success);
2638
2639 /* If there is still a service
2640 * process around, wait until
2641 * that one quit, too */
2642 break;
2643
2644 case SERVICE_STOP_POST:
2645 case SERVICE_FINAL_SIGTERM:
2646 case SERVICE_FINAL_SIGKILL:
2647 service_enter_dead(s, success, true);
2648 break;
2649
2650 default:
2651 assert_not_reached("Uh, control process died at wrong time.");
2652 }
2653 }
8c47c732 2654 }
c4e2ceae
LP		 2655
2656 /* Notify clients about changed exit status */
2657 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2658}
2659
acbb0225 2660static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2661 Service *s = SERVICE(u);
034c6ed7
LP		 2662
2663 assert(s);
2664 assert(elapsed == 1);
2665
acbb0225 2666 assert(w == &s->timer_watch);
034c6ed7
LP		 2667
2668 switch (s->state) {
2669
2670 case SERVICE_START_PRE:
2671 case SERVICE_START:
9e2f7c11 2672 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2673 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2674 break;
2675
034c6ed7
LP		 2676 case SERVICE_START_POST:
2677 case SERVICE_RELOAD:
9e2f7c11 2678 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2679 service_enter_stop(s, false);
2680 break;
2681
2682 case SERVICE_STOP:
9e2f7c11 2683 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2684 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2685 break;
2686
2687 case SERVICE_STOP_SIGTERM:
9e2f7c11 2688 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 2689 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2690 break;
2691
2692 case SERVICE_STOP_SIGKILL:
2693 /* Uh, wie sent a SIGKILL and it is still not gone?
2694 * Must be something we cannot kill, so let's just be
2695 * weirded out and continue */
2696
9e2f7c11 2697 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2698 service_enter_stop_post(s, false);
2699 break;
2700
2701 case SERVICE_STOP_POST:
9e2f7c11 2702 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2703 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2704 break;
2705
2706 case SERVICE_FINAL_SIGTERM:
9e2f7c11 2707 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
034c6ed7
LP		 2708 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2709 break;
2710
2711 case SERVICE_FINAL_SIGKILL:
fdf20a31 2712 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2713 service_enter_dead(s, false, true);
2714 break;
2715
2716 case SERVICE_AUTO_RESTART:
54165a39 2717 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2718 service_enter_restart(s);
2719 break;
2720
2721 default:
2722 assert_not_reached("Timeout at wrong time.");
2723 }
5cb5a6ff
LP		 2724}
2725
8e274523
LP		 2726static void service_cgroup_notify_event(Unit *u) {
2727 Service *s = SERVICE(u);
2728
2729 assert(u);
2730
9e2f7c11 2731 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2732
2733 switch (s->state) {
2734
2735 /* Waiting for SIGCHLD is usually more interesting,
2736 * because it includes return codes/signals. Which is
2737 * why we ignore the cgroup events for most cases,
2738 * except when we don't know pid which to expect the
2739 * SIGCHLD for. */
2740
2741 case SERVICE_RUNNING:
80876c20 2742 service_enter_running(s, true);
8e274523
LP		 2743 break;
2744
28708d8a
LP		 2745 case SERVICE_STOP_SIGTERM:
2746 case SERVICE_STOP_SIGKILL:
2747 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2748 service_enter_stop_post(s, true);
2749
2750 break;
2751
7f97f0fe
LP		 2752 case SERVICE_FINAL_SIGTERM:
2753 case SERVICE_FINAL_SIGKILL:
2754 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2755 service_enter_dead(s, true, true);
2756
2757 break;
2758
8e274523
LP		 2759 default:
2760 ;
2761 }
2762}
2763
c952c6ec 2764static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2765 Service *s = SERVICE(u);
2766 const char *e;
2767
2768 assert(u);
2769
c952c6ec
LP		 2770 if (s->notify_access == NOTIFY_NONE) {
2771 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2772 u->meta.id, (unsigned long) pid);
2773 return;
2774 }
2775
2776 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2777 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2778 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2779 return;
2780 }
2781
8c47c732
LP		 2782 log_debug("%s: Got message", u->meta.id);
2783
2784 /* Interpret MAINPID= */
2785 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2786 (s->state == SERVICE_START ||
2787 s->state == SERVICE_START_POST ||
2788 s->state == SERVICE_RUNNING ||
2789 s->state == SERVICE_RELOAD)) {
8c47c732 2790
5925dd3c 2791 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2792 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2793 else {
2794 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2795 service_set_main_pid(s, pid);
8c47c732
LP		 2796 }
2797 }
2798
2799 /* Interpret READY= */
2800 if (s->type == SERVICE_NOTIFY &&
2801 s->state == SERVICE_START &&
2802 strv_find(tags, "READY=1")) {
2803 log_debug("%s: got READY=1", u->meta.id);
2804
2805 service_enter_start_post(s);
2806 }
2807
2808 /* Interpret STATUS= */
2809 if ((e = strv_find_prefix(tags, "STATUS="))) {
2810 char *t;
2811
3a2776bc
LP		 2812 if (e[7]) {
2813 if (!(t = strdup(e+7))) {
2814 log_error("Failed to allocate string.");
2815 return;
2816 }
2817
2818 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2819
3a2776bc
LP		 2820 free(s->status_text);
2821 s->status_text = t;
2822 } else {
2823 free(s->status_text);
2824 s->status_text = NULL;
2825 }
8c47c732 2826
8c47c732 2827 }
c4e2ceae
LP		 2828
2829 /* Notify clients about changed status or main pid */
2830 unit_add_to_dbus_queue(u);
8c47c732
LP		 2831}
2832
07459bb6 2833#ifdef HAVE_SYSV_COMPAT
2c4104f0 2834static int service_enumerate(Manager *m) {
2c4104f0
LP		 2835 char **p;
2836 unsigned i;
2837 DIR *d = NULL;
2838 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2839 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2840 Unit *service;
2841 Iterator j;
2c4104f0 2842 int r;
980900c1
TG		 2843#ifdef TARGET_ARCH
2844 Unit *previous = NULL;
2845 char *arch_daemons = NULL;
2846 char *arch_daemons_stripped = NULL;
2847 char **arch_daemons_split = NULL;
2848#endif
2c4104f0
LP		 2849
2850 assert(m);
2851
980900c1
TG		 2852#ifdef TARGET_ARCH
2853 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2854 "DAEMONS", &arch_daemons,
2855 NULL)) < 0) {
2856
2857 if (r != -ENOENT)
2858 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2859
2860 } else if (arch_daemons) {
2861 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2862 arch_daemons_stripped = arch_daemons;
2863 else
2864 arch_daemons_stripped++; /* strip start paren */
2865
2866 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2867
2868 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2869 r = -ENOMEM;
2870 goto finish;
2871 }
2872
2873 STRV_FOREACH(p, arch_daemons_split) {
2874
2875 free(name);
409db002 2876 name = NULL;
980900c1
TG		 2877
2878 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2879 continue;
2880
2881 if (!(name = sysv_translate_name(*p))) {
2882 r = -ENOMEM;
2883 goto finish;
2884 }
2885
2886 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2887 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2888 continue;
2889 }
2890
2891 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2892 goto finish;
2893
2894 if (previous)
2895 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2896 goto finish;
2897
2898 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2899 previous = service;
2900 }
2901 }
2902#endif
2903
c68364b7
LP		 2904 zero(runlevel_services);
2905
84e3543e 2906 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2907 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2908 struct dirent *de;
2909
2910 free(path);
2911 path = NULL;
09cd1ab1 2912 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2913 r = -ENOMEM;
2914 goto finish;
2915 }
2916
2917 if (d)
2918 closedir(d);
2919
2920 if (!(d = opendir(path))) {
2921 if (errno != ENOENT)
2922 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2923
2924 continue;
2925 }
2926
2927 while ((de = readdir(d))) {
db06e3b6 2928 int a, b;
2c4104f0
LP		 2929
2930 if (ignore_file(de->d_name))
2931 continue;
2932
2933 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2934 continue;
2935
2936 if (strlen(de->d_name) < 4)
2937 continue;
2938
db06e3b6
LP		 2939 a = undecchar(de->d_name[1]);
2940 b = undecchar(de->d_name[2]);
2941
2942 if (a < 0 || b < 0)
2943 continue;
2944
2c4104f0
LP		 2945 free(fpath);
2946 fpath = NULL;
09cd1ab1 2947 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2948 r = -ENOMEM;
2949 goto finish;
2950 }
2951
2952 if (access(fpath, X_OK) < 0) {
2953
2954 if (errno != ENOENT)
2955 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2956
2957 continue;
2958 }
2959
2960 free(name);
b7ccee3c 2961 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 2962 r = -ENOMEM;
2963 goto finish;
2964 }
2965
398ef8ba 2966 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 2967 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2968 continue;
2969 }
2c4104f0 2970
c68364b7
LP		 2971 if (de->d_name[0] == 'S') {
2972
f73d93a4
LP		 2973 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2974 SERVICE(service)->sysv_start_priority =
2975 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 2976
c68364b7 2977 SERVICE(service)->sysv_enabled = true;
f73d93a4 2978 }
db06e3b6 2979
c68364b7
LP		 2980 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
2981 goto finish;
2c4104f0 2982
c68364b7 2983 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 2984 goto finish;
23a177ef 2985
fc5df99e
LP		 2986 } else if (de->d_name[0] == 'K' &&
2987 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2988 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 2989
c68364b7
LP		 2990 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
2991 goto finish;
2992
2993 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 2994 goto finish;
2995 }
2996 }
2997 }
2998
c68364b7
LP		 2999 /* Now we loaded all stubs and are aware of the lowest
3000 start-up priority for all services, not let's actually load
3001 the services, this will also tell us which services are
3002 actually native now */
3003 manager_dispatch_load_queue(m);
3004
3005 /* If this is a native service, rely on native ways to pull in
3006 * a service, don't pull it in via sysv rcN.d links. */
3007 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3008 SET_FOREACH(service, runlevel_services[i], j) {
3009 service = unit_follow_merge(service);
3010
3011 if (service->meta.fragment_path)
3012 continue;
3013
3014 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3015 goto finish;
3016 }
3017
3018 /* We honour K links only for halt/reboot. For the normal
3019 * runlevels we assume the stop jobs will be implicitly added
3020 * by the core logic. Also, we don't really distuingish here
3021 * between the runlevels 0 and 6 and just add them to the
3022 * special shutdown target. On SUSE the boot.d/ runlevel is
3023 * also used for shutdown, so we add links for that too to the
3024 * shutdown target.*/
3025 SET_FOREACH(service, shutdown_services, j) {
3026 service = unit_follow_merge(service);
3027
3028 if (service->meta.fragment_path)
3029 continue;
3030
3031 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3032 goto finish;
3033 }
3034
2c4104f0
LP		 3035 r = 0;
3036
3037finish:
3038 free(path);
3039 free(fpath);
3040 free(name);
980900c1
TG		 3041#ifdef TARGET_ARCH
3042 free(arch_daemons);
3043 free(arch_daemons_split);
3044#endif
fbe9f3a9 3045
c68364b7
LP		 3046 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3047 set_free(runlevel_services[i]);
3048 set_free(shutdown_services);
3049
fbe9f3a9
LP		 3050 if (d)
3051 closedir(d);
2c4104f0
LP		 3052
3053 return r;
3054}
07459bb6 3055#endif
2c4104f0 3056
05e343b7
LP		 3057static void service_bus_name_owner_change(
3058 Unit *u,
3059 const char *name,
3060 const char *old_owner,
3061 const char *new_owner) {
3062
3063 Service *s = SERVICE(u);
3064
3065 assert(s);
3066 assert(name);
3067
3068 assert(streq(s->bus_name, name));
3069 assert(old_owner || new_owner);
3070
3071 if (old_owner && new_owner)
3072 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3073 else if (old_owner)
3074 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3075 else
3076 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3077
3078 s->bus_name_good = !!new_owner;
3079
3080 if (s->type == SERVICE_DBUS) {
3081
3082 /* service_enter_running() will figure out what to
3083 * do */
3084 if (s->state == SERVICE_RUNNING)
3085 service_enter_running(s, true);
3086 else if (s->state == SERVICE_START && new_owner)
3087 service_enter_start_post(s);
3088
3089 } else if (new_owner &&
3090 s->main_pid <= 0 &&
3091 (s->state == SERVICE_START ||
3092 s->state == SERVICE_START_POST ||
3093 s->state == SERVICE_RUNNING ||
3094 s->state == SERVICE_RELOAD)) {
3095
3096 /* Try to acquire PID from bus service */
3097 log_debug("Trying to acquire PID from D-Bus name...");
3098
3099 bus_query_pid(u->meta.manager, name);
3100 }
3101}
3102
3103static void service_bus_query_pid_done(
3104 Unit *u,
3105 const char *name,
3106 pid_t pid) {
3107
3108 Service *s = SERVICE(u);
3109
3110 assert(s);
3111 assert(name);
3112
3113 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3114
3115 if (s->main_pid <= 0 &&
3116 (s->state == SERVICE_START ||
3117 s->state == SERVICE_START_POST ||
3118 s->state == SERVICE_RUNNING ||
3119 s->state == SERVICE_RELOAD))
5925dd3c 3120 service_set_main_pid(s, pid);
05e343b7
LP		 3121}
3122
6cf6bbc2 3123int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3124 assert(s);
3125 assert(fd >= 0);
3126
3127 /* This is called by the socket code when instantiating a new
3128 * service for a stream socket and the socket needs to be
3129 * configured. */
3130
4cd1fbcc 3131 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3132 return -EINVAL;
3133
3134 if (s->socket_fd >= 0)
3135 return -EBUSY;
3136
3137 if (s->state != SERVICE_DEAD)
3138 return -EAGAIN;
3139
3140 s->socket_fd = fd;
701cc384 3141 s->got_socket_fd = true;
f976f3f6 3142 s->accept_socket = sock;
6cf6bbc2 3143
4f2d528d
LP		 3144 return 0;
3145}
3146
fdf20a31 3147static void service_reset_failed(Unit *u) {
5632e374
LP		 3148 Service *s = SERVICE(u);
3149
3150 assert(s);
3151
fdf20a31 3152 if (s->state == SERVICE_FAILED)
5632e374
LP		 3153 service_set_state(s, SERVICE_DEAD);
3154
3155 s->failure = false;
3156}
3157
8a0867d6
LP		 3158static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3159 Service *s = SERVICE(u);
3160 int r = 0;
3161 Set *pid_set = NULL;
3162
3163 assert(s);
3164
3165 if (s->main_pid <= 0 && who == KILL_MAIN) {
3166 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3167 return -EINVAL;
3168 }
3169
3170 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3171 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3172 return -ENOENT;
3173 }
3174
3175 if (s->control_pid > 0)
3176 if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
3177 r = -errno;
3178
3179 if (s->main_pid > 0)
3180 if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0)
3181 r = -errno;
3182
3183 if (mode == KILL_CONTROL_GROUP) {
3184 int q;
3185
3186 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3187 return -ENOMEM;
3188
3189 /* Exclude the control/main pid from being killed via the cgroup */
3190 if (s->control_pid > 0)
3191 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3192 r = q;
3193 goto finish;
3194 }
3195
3196 if (s->main_pid > 0)
3197 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3198 r = q;
3199 goto finish;
3200 }
3201
3202 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
3203 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3204 r = q;
3205 }
3206
3207finish:
3208 if (pid_set)
3209 set_free(pid_set);
3210
3211 return r;
3212}
3213
94f04347
LP		 3214static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3215 [SERVICE_DEAD] = "dead",
3216 [SERVICE_START_PRE] = "start-pre",
3217 [SERVICE_START] = "start",
3218 [SERVICE_START_POST] = "start-post",
3219 [SERVICE_RUNNING] = "running",
80876c20 3220 [SERVICE_EXITED] = "exited",
94f04347
LP		 3221 [SERVICE_RELOAD] = "reload",
3222 [SERVICE_STOP] = "stop",
3223 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3224 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3225 [SERVICE_STOP_POST] = "stop-post",
3226 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3227 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3228 [SERVICE_FAILED] = "failed",
94f04347
LP		 3229 [SERVICE_AUTO_RESTART] = "auto-restart",
3230};
3231
3232DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3233
3234static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3235 [SERVICE_RESTART_NO] = "no",
3236 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3237 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3238 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3239 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3240};
3241
3242DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3243
3244static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3245 [SERVICE_SIMPLE] = "simple",
0d624a78 3246 [SERVICE_FORKING] = "forking",
34e9ba66 3247 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3248 [SERVICE_DBUS] = "dbus",
3249 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3250};
3251
3252DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3253
e537352b 3254static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3255 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3256 [SERVICE_EXEC_START] = "ExecStart",
3257 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3258 [SERVICE_EXEC_RELOAD] = "ExecReload",
3259 [SERVICE_EXEC_STOP] = "ExecStop",
3260 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3261};
3262
3263DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3264
c952c6ec
LP		 3265static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3266 [NOTIFY_NONE] = "none",
3267 [NOTIFY_MAIN] = "main",
3268 [NOTIFY_ALL] = "all"
3269};
3270
3271DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3272
87f0e418 3273const UnitVTable service_vtable = {
5cb5a6ff 3274 .suffix = ".service",
9e58ff9c 3275 .show_status = true,
5cb5a6ff 3276
034c6ed7
LP		 3277 .init = service_init,
3278 .done = service_done,
a16e1123
LP		 3279 .load = service_load,
3280
3281 .coldplug = service_coldplug,
034c6ed7 3282
5cb5a6ff
LP		 3283 .dump = service_dump,
3284
3285 .start = service_start,
3286 .stop = service_stop,
3287 .reload = service_reload,
3288
034c6ed7
LP		 3289 .can_reload = service_can_reload,
3290
8a0867d6
LP		 3291 .kill = service_kill,
3292
a16e1123
LP		 3293 .serialize = service_serialize,
3294 .deserialize_item = service_deserialize_item,
3295
5cb5a6ff 3296 .active_state = service_active_state,
10a94420 3297 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3298
07459bb6 3299#ifdef HAVE_SYSV_COMPAT
701cc384 3300 .check_gc = service_check_gc,
07459bb6 3301#endif
701cc384
LP		 3302 .check_snapshot = service_check_snapshot,
3303
034c6ed7
LP		 3304 .sigchld_event = service_sigchld_event,
3305 .timer_event = service_timer_event,
2c4104f0 3306
fdf20a31 3307 .reset_failed = service_reset_failed,
5632e374 3308
8e274523 3309 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3310 .notify_message = service_notify_message,
8e274523 3311
05e343b7
LP		 3312 .bus_name_owner_change = service_bus_name_owner_change,
3313 .bus_query_pid_done = service_bus_query_pid_done,
3314
c4e2ceae 3315 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3316 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3317 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3318
07459bb6 3319#ifdef HAVE_SYSV_COMPAT
2c4104f0 3320 .enumerate = service_enumerate
07459bb6 3321#endif
5cb5a6ff 3322};
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