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chkconfig: check against runlevel 5 instead of 3, since it is a superset of the latter
[thirdparty/systemd.git] / src / service.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
5cb5a6ff 22#include <errno.h>
034c6ed7 23#include <signal.h>
2c4104f0
LP		 24#include <dirent.h>
25#include <unistd.h>
5cb5a6ff 26
87f0e418 27#include "unit.h"
5cb5a6ff
LP		 28#include "service.h"
29#include "load-fragment.h"
30#include "load-dropin.h"
034c6ed7 31#include "log.h"
2c4104f0 32#include "strv.h"
9e2f7c11 33#include "unit-name.h"
4139c1b2 34#include "dbus-service.h"
514f4ef5 35#include "special.h"
398ef8ba 36#include "bus-errors.h"
9a57c629 37#include "exit-status.h"
2c4104f0
LP		 38
39#define COMMENTS "#;\n"
40#define NEWLINES "\n\r"
034c6ed7 41
07459bb6 42#ifdef HAVE_SYSV_COMPAT
f34277d9
LP		 43
44#define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
45
09cd1ab1
LP		 46typedef enum RunlevelType {
47 RUNLEVEL_UP,
48 RUNLEVEL_DOWN,
fc5df99e 49 RUNLEVEL_SYSINIT
09cd1ab1
LP		 50} RunlevelType;
51
52static const struct {
53 const char *path;
54 const char *target;
55 const RunlevelType type;
56} rcnd_table[] = {
9d25f5ed 57 /* Standard SysV runlevels for start-up */
514f4ef5 58 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
fbe9f3a9
LP		 59 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
60 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
61 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
62 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
fbe9f3a9 63
d4054675 64#ifdef TARGET_SUSE
cfe243e3 65 /* SUSE style boot.d */
fc5df99e 66 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 67#endif
fbe9f3a9 68
f5c88ec1 69#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE)
fbe9f3a9 70 /* Debian style rcS.d */
fc5df99e 71 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
d4054675 72#endif
9d25f5ed
LP		 73
74 /* Standard SysV runlevels for shutdown */
75 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
76 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
77
78 /* Note that the order here matters, as we read the
79 directories in this order, and we want to make sure that
80 sysv_start_priority is known when we first load the
81 unit. And that value we only know from S links. Hence
82 UP/SYSINIT must be read before DOWN */
23a177ef
LP		 83};
84
09cd1ab1 85#define RUNLEVELS_UP "12345"
fbe9f3a9
LP		 86/* #define RUNLEVELS_DOWN "06" */
87/* #define RUNLEVELS_BOOT "bBsS" */
07459bb6 88#endif
09cd1ab1 89
acbb0225 90static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87f0e418
LP		 91 [SERVICE_DEAD] = UNIT_INACTIVE,
92 [SERVICE_START_PRE] = UNIT_ACTIVATING,
93 [SERVICE_START] = UNIT_ACTIVATING,
94 [SERVICE_START_POST] = UNIT_ACTIVATING,
95 [SERVICE_RUNNING] = UNIT_ACTIVE,
80876c20 96 [SERVICE_EXITED] = UNIT_ACTIVE,
032ff4af 97 [SERVICE_RELOAD] = UNIT_RELOADING,
87f0e418
LP		 98 [SERVICE_STOP] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
101 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
103 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 104 [SERVICE_FAILED] = UNIT_FAILED,
6124958c 105 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
034c6ed7 106};
5cb5a6ff 107
a16e1123
LP		 108static void service_init(Unit *u) {
109 Service *s = SERVICE(u);
110
111 assert(u);
112 assert(u->meta.load_state == UNIT_STUB);
113
114 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
115 s->restart_usec = DEFAULT_RESTART_USEC;
116 s->timer_watch.type = WATCH_INVALID;
07459bb6 117#ifdef HAVE_SYSV_COMPAT
a16e1123 118 s->sysv_start_priority = -1;
07459bb6 119#endif
a16e1123 120 s->socket_fd = -1;
3185a36b 121 s->guess_main_pid = true;
a16e1123
LP		 122
123 exec_context_init(&s->exec_context);
0a494f1f
LP		 124 s->exec_context.std_output = u->meta.manager->default_std_output;
125 s->exec_context.std_error = u->meta.manager->default_std_error;
a16e1123
LP		 126
127 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
128
129 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
130}
131
5e94833f
LP		 132static void service_unwatch_control_pid(Service *s) {
133 assert(s);
134
135 if (s->control_pid <= 0)
136 return;
137
138 unit_unwatch_pid(UNIT(s), s->control_pid);
139 s->control_pid = 0;
140}
141
142static void service_unwatch_main_pid(Service *s) {
143 assert(s);
144
145 if (s->main_pid <= 0)
146 return;
147
148 unit_unwatch_pid(UNIT(s), s->main_pid);
149 s->main_pid = 0;
150}
151
5925dd3c 152static int service_set_main_pid(Service *s, pid_t pid) {
e55224ca
LP		 153 pid_t ppid;
154
5925dd3c
LP		 155 assert(s);
156
157 if (pid <= 1)
158 return -EINVAL;
159
160 if (pid == getpid())
161 return -EINVAL;
162
e55224ca
LP		 163 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
164 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
165 s->meta.id, (unsigned long) pid);
166
5925dd3c
LP		 167 s->main_pid = pid;
168 s->main_pid_known = true;
169
b58b4116
LP		 170 exec_status_start(&s->main_exec_status, pid);
171
5925dd3c
LP		 172 return 0;
173}
174
4f2d528d
LP		 175static void service_close_socket_fd(Service *s) {
176 assert(s);
177
178 if (s->socket_fd < 0)
179 return;
180
181 close_nointr_nofail(s->socket_fd);
182 s->socket_fd = -1;
183}
184
6cf6bbc2
LP		 185static void service_connection_unref(Service *s) {
186 assert(s);
187
f976f3f6 188 if (!s->accept_socket)
6cf6bbc2
LP		 189 return;
190
f976f3f6
LP		 191 socket_connection_unref(s->accept_socket);
192 s->accept_socket = NULL;
6cf6bbc2
LP		 193}
194
87f0e418
LP		 195static void service_done(Unit *u) {
196 Service *s = SERVICE(u);
44d8db9e
LP		 197
198 assert(s);
199
200 free(s->pid_file);
201 s->pid_file = NULL;
202
07459bb6 203#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 204 free(s->sysv_path);
205 s->sysv_path = NULL;
206
8309400a
LP		 207 free(s->sysv_runlevels);
208 s->sysv_runlevels = NULL;
07459bb6 209#endif
8309400a 210
8c47c732
LP		 211 free(s->status_text);
212 s->status_text = NULL;
213
44d8db9e 214 exec_context_done(&s->exec_context);
e537352b 215 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
44d8db9e 216 s->control_command = NULL;
867b3b7d 217 s->main_command = NULL;
44d8db9e
LP		 218
219 /* This will leak a process, but at least no memory or any of
220 * our resources */
5e94833f
LP		 221 service_unwatch_main_pid(s);
222 service_unwatch_control_pid(s);
44d8db9e 223
05e343b7
LP		 224 if (s->bus_name) {
225 unit_unwatch_bus_name(UNIT(u), s->bus_name);
226 free(s->bus_name);
227 s->bus_name = NULL;
228 }
229
4f2d528d 230 service_close_socket_fd(s);
6cf6bbc2 231 service_connection_unref(s);
4f2d528d 232
f976f3f6
LP		 233 set_free(s->configured_sockets);
234
acbb0225 235 unit_unwatch_timer(u, &s->timer_watch);
44d8db9e
LP		 236}
237
07459bb6 238#ifdef HAVE_SYSV_COMPAT
b7ccee3c
LP		 239static char *sysv_translate_name(const char *name) {
240 char *r;
241
242 if (!(r = new(char, strlen(name) + sizeof(".service"))))
243 return NULL;
244
5b819198
MB		 245#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
246 if (endswith(name, ".sh"))
247 /* Drop Debian-style .sh suffix */
248 strcpy(stpcpy(r, name) - 3, ".service");
249#endif
250#ifdef TARGET_SUSE
b7ccee3c
LP		 251 if (startswith(name, "boot."))
252 /* Drop SuSE-style boot. prefix */
253 strcpy(stpcpy(r, name + 5), ".service");
5b819198 254#endif
65530632 255#ifdef TARGET_FRUGALWARE
5b819198 256 if (startswith(name, "rc."))
65530632
MV		 257 /* Drop Frugalware-style rc. prefix */
258 strcpy(stpcpy(r, name + 3), ".service");
980900c1 259#endif
b7ccee3c
LP		 260 else
261 /* Normal init scripts */
262 strcpy(stpcpy(r, name), ".service");
263
264 return r;
265}
266
ee95669f 267static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
2c4104f0 268
a7d3cc26
LP		 269 /* We silently ignore the $ prefix here. According to the LSB
270 * spec it simply indicates whether something is a
271 * standardized name or a distribution-specific one. Since we
272 * just follow what already exists and do not introduce new
273 * uses or names we don't care who introduced a new name. */
274
2c4104f0 275 static const char * const table[] = {
6464aa08 276 /* LSB defined facilities */
a7d3cc26 277 "local_fs", SPECIAL_LOCAL_FS_TARGET,
1de4d79b
AB		 278#ifndef TARGET_MANDRIVA
279 /* Due to unfortunate name selection in Mandriva,
280 * $network is provided by network-up which is ordered
281 * after network which actually starts interfaces.
282 * To break the loop, just ignore it */
a7d3cc26 283 "network", SPECIAL_NETWORK_TARGET,
1de4d79b 284#endif
a7d3cc26
LP		 285 "named", SPECIAL_NSS_LOOKUP_TARGET,
286 "portmap", SPECIAL_RPCBIND_TARGET,
287 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
288 "syslog", SPECIAL_SYSLOG_TARGET,
289 "time", SPECIAL_RTC_SET_TARGET,
6464aa08 290
0b603b4e
KS		 291 /* common extensions */
292 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
293 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
294 "null", NULL,
295
858dae18 296#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
a7d3cc26 297 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
3177a49c 298#endif
3177a49c
LP		 299
300#ifdef TARGET_FEDORA
a7d3cc26
LP		 301 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
302 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
303 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
3177a49c 304#endif
a7d3cc26 305
0b603b4e
KS		 306#ifdef TARGET_SUSE
307 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
308#endif
2c4104f0
LP		 309 };
310
311 unsigned i;
312 char *r;
ee95669f 313 const char *n;
2c4104f0 314
ee95669f
LP		 315 assert(name);
316 assert(_r);
a7d3cc26 317
ee95669f 318 n = *name == '$' ? name + 1 : name;
a7d3cc26 319
ee95669f 320 for (i = 0; i < ELEMENTSOF(table); i += 2) {
a7d3cc26 321
ee95669f
LP		 322 if (!streq(table[i], n))
323 continue;
2c4104f0 324
ee95669f
LP		 325 if (!table[i+1])
326 return 0;
327
328 if (!(r = strdup(table[i+1])))
329 return -ENOMEM;
330
331 goto finish;
332 }
2c4104f0 333
a7d3cc26 334 /* If we don't know this name, fallback heuristics to figure
0003d1ab 335 * out whether something is a target or a service alias. */
a7d3cc26 336
e83c7c0b
LP		 337 if (*name == '$') {
338 if (!unit_prefix_is_valid(n))
339 return -EINVAL;
340
ee95669f
LP		 341 /* Facilities starting with $ are most likely targets */
342 r = unit_name_build(n, NULL, ".target");
e83c7c0b 343 } else if (filename && streq(name, filename))
35b8ca3a 344 /* Names equaling the file name of the services are redundant */
ee95669f 345 return 0;
32159d3a 346 else
ee95669f
LP		 347 /* Everything else we assume to be normal service names */
348 r = sysv_translate_name(n);
2c4104f0 349
32159d3a 350 if (!r)
2c4104f0
LP		 351 return -ENOMEM;
352
353finish:
b4353094 354 *_r = r;
2c4104f0
LP		 355
356 return 1;
357}
358
56d748b4 359static int sysv_fix_order(Service *s) {
2c4104f0
LP		 360 Meta *other;
361 int r;
362
363 assert(s);
364
365 if (s->sysv_start_priority < 0)
366 return 0;
367
23a177ef
LP		 368 /* For each pair of services where at least one lacks a LSB
369 * header, we use the start priority value to order things. */
2c4104f0 370
4cd1fbcc 371 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
2c4104f0
LP		 372 Service *t;
373 UnitDependency d;
eeaafddc 374 bool special_s, special_t;
2c4104f0
LP		 375
376 t = (Service*) other;
377
378 if (s == t)
379 continue;
9f151f29
LP		 380
381 if (t->meta.load_state != UNIT_LOADED)
382 continue;
2c4104f0
LP		 383
384 if (t->sysv_start_priority < 0)
385 continue;
386
51a1a79d
LP		 387 /* If both units have modern headers we don't care
388 * about the priorities */
f21781d5
LP		 389 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
390 (t->meta.fragment_path || t->sysv_has_lsb))
23a177ef
LP		 391 continue;
392
eeaafddc
LP		 393 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
394 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
395
396 if (special_t && !special_s)
397 d = UNIT_AFTER;
398 else if (special_s && !special_t)
399 d = UNIT_BEFORE;
400 else if (t->sysv_start_priority < s->sysv_start_priority)
2c4104f0
LP		 401 d = UNIT_AFTER;
402 else if (t->sysv_start_priority > s->sysv_start_priority)
403 d = UNIT_BEFORE;
404 else
405 continue;
406
407 /* FIXME: Maybe we should compare the name here lexicographically? */
408
701cc384 409 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
2c4104f0
LP		 410 return r;
411 }
412
413 return 0;
414}
415
416static ExecCommand *exec_command_new(const char *path, const char *arg1) {
417 ExecCommand *c;
418
419 if (!(c = new0(ExecCommand, 1)))
420 return NULL;
421
422 if (!(c->path = strdup(path))) {
423 free(c);
424 return NULL;
425 }
426
427 if (!(c->argv = strv_new(path, arg1, NULL))) {
428 free(c->path);
429 free(c);
430 return NULL;
431 }
432
433 return c;
434}
435
436static int sysv_exec_commands(Service *s) {
437 ExecCommand *c;
438
439 assert(s);
440 assert(s->sysv_path);
441
442 if (!(c = exec_command_new(s->sysv_path, "start")))
443 return -ENOMEM;
444 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
445
446 if (!(c = exec_command_new(s->sysv_path, "stop")))
447 return -ENOMEM;
448 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
449
450 if (!(c = exec_command_new(s->sysv_path, "reload")))
451 return -ENOMEM;
452 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
453
454 return 0;
455}
456
e537352b 457static int service_load_sysv_path(Service *s, const char *path) {
2c4104f0
LP		 458 FILE *f;
459 Unit *u;
460 unsigned line = 0;
461 int r;
462 enum {
463 NORMAL,
464 DESCRIPTION,
465 LSB,
466 LSB_DESCRIPTION
467 } state = NORMAL;
0b5d26f9 468 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
23a177ef
LP		 469
470 assert(s);
471 assert(path);
2c4104f0
LP		 472
473 u = UNIT(s);
474
475 if (!(f = fopen(path, "re"))) {
476 r = errno == ENOENT ? 0 : -errno;
477 goto finish;
478 }
479
2c4104f0
LP		 480 free(s->sysv_path);
481 if (!(s->sysv_path = strdup(path))) {
482 r = -ENOMEM;
483 goto finish;
484 }
485
486 while (!feof(f)) {
487 char l[LINE_MAX], *t;
488
489 if (!fgets(l, sizeof(l), f)) {
490 if (feof(f))
491 break;
492
493 r = -errno;
494 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
495 goto finish;
496 }
497
498 line++;
499
500 t = strstrip(l);
501 if (*t != '#')
502 continue;
503
504 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
505 state = LSB;
23a177ef 506 s->sysv_has_lsb = true;
2c4104f0
LP		 507 continue;
508 }
509
510 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
511 state = NORMAL;
512 continue;
513 }
514
515 t++;
516 t += strspn(t, WHITESPACE);
517
518 if (state == NORMAL) {
519
520 /* Try to parse Red Hat style chkconfig headers */
521
c2b35af6 522 if (startswith_no_case(t, "chkconfig:")) {
2c4104f0 523 int start_priority;
8309400a 524 char runlevels[16], *k;
2c4104f0
LP		 525
526 state = NORMAL;
527
8309400a
LP		 528 if (sscanf(t+10, "%15s %i %*i",
529 runlevels,
530 &start_priority) != 2) {
2c4104f0
LP		 531
532 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
533 continue;
534 }
535
fbe9f3a9
LP		 536 /* A start priority gathered from the
537 * symlink farms is preferred over the
538 * data from the LSB header. */
8309400a 539 if (start_priority < 0 || start_priority > 99)
2c4104f0 540 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
db06e3b6 541 else if (s->sysv_start_priority < 0)
8309400a
LP		 542 s->sysv_start_priority = start_priority;
543
544 char_array_0(runlevels);
545 k = delete_chars(runlevels, WHITESPACE "-");
546
547 if (k[0]) {
548 char *d;
549
550 if (!(d = strdup(k))) {
551 r = -ENOMEM;
552 goto finish;
553 }
554
555 free(s->sysv_runlevels);
556 s->sysv_runlevels = d;
2c4104f0
LP		 557 }
558
0b5d26f9 559 } else if (startswith_no_case(t, "description:")) {
2c4104f0
LP		 560
561 size_t k = strlen(t);
562 char *d;
0b5d26f9 563 const char *j;
2c4104f0
LP		 564
565 if (t[k-1] == '\\') {
566 state = DESCRIPTION;
567 t[k-1] = 0;
568 }
569
0b5d26f9
LP		 570 if ((j = strstrip(t+12)) && *j) {
571 if (!(d = strdup(j))) {
572 r = -ENOMEM;
573 goto finish;
574 }
575 } else
576 d = NULL;
2c4104f0 577
0b5d26f9
LP		 578 free(chkconfig_description);
579 chkconfig_description = d;
2c4104f0 580
c2b35af6 581 } else if (startswith_no_case(t, "pidfile:")) {
2c4104f0
LP		 582
583 char *fn;
584
585 state = NORMAL;
586
587 fn = strstrip(t+8);
588 if (!path_is_absolute(fn)) {
589 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
590 continue;
591 }
592
593 if (!(fn = strdup(fn))) {
594 r = -ENOMEM;
595 goto finish;
596 }
597
598 free(s->pid_file);
599 s->pid_file = fn;
600 }
601
602 } else if (state == DESCRIPTION) {
603
604 /* Try to parse Red Hat style description
605 * continuation */
606
607 size_t k = strlen(t);
0b5d26f9 608 char *j;
2c4104f0
LP		 609
610 if (t[k-1] == '\\')
611 t[k-1] = 0;
612 else
613 state = NORMAL;
614
0b5d26f9
LP		 615 if ((j = strstrip(t)) && *j) {
616 char *d = NULL;
617
618 if (chkconfig_description)
619 asprintf(&d, "%s %s", chkconfig_description, j);
620 else
621 d = strdup(j);
2c4104f0 622
0b5d26f9
LP		 623 if (!d) {
624 r = -ENOMEM;
625 goto finish;
626 }
627
628 free(chkconfig_description);
629 chkconfig_description = d;
630 }
2c4104f0
LP		 631
632 } else if (state == LSB || state == LSB_DESCRIPTION) {
633
c2b35af6 634 if (startswith_no_case(t, "Provides:")) {
2c4104f0
LP		 635 char *i, *w;
636 size_t z;
637
638 state = LSB;
639
f60f22df 640 FOREACH_WORD_QUOTED(w, z, t+9, i) {
2c4104f0
LP		 641 char *n, *m;
642
643 if (!(n = strndup(w, z))) {
644 r = -ENOMEM;
645 goto finish;
646 }
647
ee95669f 648 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0
LP		 649 free(n);
650
651 if (r < 0)
652 goto finish;
653
654 if (r == 0)
655 continue;
656
bd77d0fc
LP		 657 if (unit_name_to_type(m) == UNIT_SERVICE)
658 r = unit_add_name(u, m);
c68364b7
LP		 659 else {
660 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
661
662 if (s->sysv_enabled) {
663 int k;
664
665 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
666 r = k;
667 }
668 }
bd77d0fc 669
2c4104f0 670 if (r < 0)
43a37549 671 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 672
673 free(m);
2c4104f0
LP		 674 }
675
c2b35af6
LP		 676 } else if (startswith_no_case(t, "Required-Start:") ||
677 startswith_no_case(t, "Should-Start:") ||
678 startswith_no_case(t, "X-Start-Before:") ||
679 startswith_no_case(t, "X-Start-After:")) {
2c4104f0
LP		 680 char *i, *w;
681 size_t z;
682
683 state = LSB;
684
f60f22df 685 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
2c4104f0
LP		 686 char *n, *m;
687
688 if (!(n = strndup(w, z))) {
689 r = -ENOMEM;
690 goto finish;
691 }
692
ee95669f 693 r = sysv_translate_facility(n, file_name_from_path(path), &m);
2c4104f0 694
e83c7c0b
LP		 695 if (r < 0) {
696 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
697 free(n);
698 continue;
699 }
700
701 free(n);
2c4104f0
LP		 702
703 if (r == 0)
704 continue;
705
c2b35af6 706 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
2c4104f0
LP		 707
708 if (r < 0)
43a37549 709 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
42a097a2
LP		 710
711 free(m);
2c4104f0 712 }
c2b35af6 713 } else if (startswith_no_case(t, "Default-Start:")) {
8309400a
LP		 714 char *k, *d;
715
716 state = LSB;
717
718 k = delete_chars(t+14, WHITESPACE "-");
719
720 if (k[0] != 0) {
721 if (!(d = strdup(k))) {
722 r = -ENOMEM;
723 goto finish;
724 }
725
726 free(s->sysv_runlevels);
727 s->sysv_runlevels = d;
728 }
2c4104f0 729
0b5d26f9
LP		 730 } else if (startswith_no_case(t, "Description:")) {
731 char *d, *j;
ed4c1cc6 732
2c4104f0
LP		 733 state = LSB_DESCRIPTION;
734
0b5d26f9
LP		 735 if ((j = strstrip(t+12)) && *j) {
736 if (!(d = strdup(j))) {
737 r = -ENOMEM;
738 goto finish;
739 }
740 } else
741 d = NULL;
2c4104f0 742
0b5d26f9
LP		 743 free(long_description);
744 long_description = d;
2c4104f0 745
ed4c1cc6 746 } else if (startswith_no_case(t, "Short-Description:")) {
0b5d26f9 747 char *d, *j;
2c4104f0 748
2c4104f0
LP		 749 state = LSB;
750
0b5d26f9
LP		 751 if ((j = strstrip(t+18)) && *j) {
752 if (!(d = strdup(j))) {
753 r = -ENOMEM;
754 goto finish;
755 }
756 } else
757 d = NULL;
2c4104f0 758
0b5d26f9
LP		 759 free(short_description);
760 short_description = d;
2c4104f0 761
723c83fd
LP		 762 } else if (startswith_no_case(t, "X-Interactive:")) {
763 int b;
764
765 if ((b = parse_boolean(strstrip(t+14))) < 0) {
766 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
767 continue;
768 }
769
770 if (b)
771 s->exec_context.std_input = EXEC_INPUT_TTY;
772 else
773 s->exec_context.std_input = EXEC_INPUT_NULL;
774
2c4104f0
LP		 775 } else if (state == LSB_DESCRIPTION) {
776
777 if (startswith(l, "#\t") || startswith(l, "# ")) {
0b5d26f9 778 char *j;
2c4104f0 779
0b5d26f9
LP		 780 if ((j = strstrip(t)) && *j) {
781 char *d = NULL;
782
783 if (long_description)
784 asprintf(&d, "%s %s", long_description, t);
785 else
786 d = strdup(j);
787
788 if (!d) {
789 r = -ENOMEM;
790 goto finish;
791 }
792
793 free(long_description);
794 long_description = d;
2c4104f0
LP		 795 }
796
2c4104f0
LP		 797 } else
798 state = LSB;
799 }
800 }
801 }
802
2c4104f0
LP		 803 if ((r = sysv_exec_commands(s)) < 0)
804 goto finish;
805
a40eb732 806 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
0bc824be
LP		 807 /* If there a runlevels configured for this service
808 * but none of the standard ones, then we assume this
809 * is some special kind of service (which might be
810 * needed for early boot) and don't create any links
811 * to it. */
812
a40eb732 813 s->meta.default_dependencies = false;
09cd1ab1 814
09cd1ab1
LP		 815 /* Don't timeout special services during boot (like fsck) */
816 s->timeout_usec = 0;
f34277d9
LP		 817 } else
818 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
0fd030be 819
80876c20 820 /* Special setting for all SysV services */
1f48cf56 821 s->type = SERVICE_FORKING;
02ee865a 822 s->remain_after_exit = true;
525ee6f4 823 s->restart = SERVICE_RESTART_NO;
8a2b3c09
LP		 824 s->exec_context.std_output =
825 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
0a494f1f 826 ? EXEC_OUTPUT_TTY : s->meta.manager->default_std_output;
2e22afe9 827 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
80876c20 828
0b5d26f9
LP		 829 /* We use the long description only if
830 * no short description is set. */
831
832 if (short_description)
833 description = short_description;
834 else if (chkconfig_description)
835 description = chkconfig_description;
836 else if (long_description)
837 description = long_description;
838 else
839 description = NULL;
840
841 if (description) {
842 char *d;
843
e527618d 844 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
0b5d26f9
LP		 845 r = -ENOMEM;
846 goto finish;
847 }
848
849 u->meta.description = d;
850 }
851
e537352b 852 u->meta.load_state = UNIT_LOADED;
23a177ef 853 r = 0;
2c4104f0
LP		 854
855finish:
856
857 if (f)
858 fclose(f);
859
0b5d26f9
LP		 860 free(short_description);
861 free(long_description);
862 free(chkconfig_description);
863
2c4104f0
LP		 864 return r;
865}
866
e537352b 867static int service_load_sysv_name(Service *s, const char *name) {
2c4104f0
LP		 868 char **p;
869
870 assert(s);
871 assert(name);
872
e1992852 873 /* For SysV services we strip the boot.*, rc.* and *.sh
d017c6ca 874 * prefixes/suffixes. */
5b819198
MB		 875#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
876 if (endswith(name, ".sh.service"))
d017c6ca 877 return -ENOENT;
5b819198
MB		 878#endif
879
880#ifdef TARGET_SUSE
881 if (startswith(name, "boot."))
882 return -ENOENT;
883#endif
884
885#ifdef TARGET_FRUGALWARE
886 if (startswith(name, "rc."))
887 return -ENOENT;
888#endif
d017c6ca 889
4cd1fbcc 890 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
2c4104f0
LP		 891 char *path;
892 int r;
893
894 if (asprintf(&path, "%s/%s", *p, name) < 0)
895 return -ENOMEM;
896
897 assert(endswith(path, ".service"));
898 path[strlen(path)-8] = 0;
899
e537352b 900 r = service_load_sysv_path(s, path);
fbe9f3a9 901
e1992852 902#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
4cd1fbcc 903 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 904 /* Try Debian style *.sh source'able init scripts */
fbe9f3a9
LP		 905 strcat(path, ".sh");
906 r = service_load_sysv_path(s, path);
907 }
e1992852 908#endif
2c4104f0
LP		 909 free(path);
910
e1992852 911#ifdef TARGET_SUSE
4cd1fbcc 912 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 913 /* Try SUSE style boot.* init scripts */
fbe9f3a9
LP		 914
915 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
916 return -ENOMEM;
917
e1992852 918 /* Drop .service suffix */
fbe9f3a9
LP		 919 path[strlen(path)-8] = 0;
920 r = service_load_sysv_path(s, path);
921 free(path);
922 }
e1992852 923#endif
fbe9f3a9 924
e1992852 925#ifdef TARGET_FRUGALWARE
65530632 926 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
e1992852 927 /* Try Frugalware style rc.* init scripts */
65530632
MV		 928
929 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
930 return -ENOMEM;
931
e1992852 932 /* Drop .service suffix */
65530632
MV		 933 path[strlen(path)-8] = 0;
934 r = service_load_sysv_path(s, path);
935 free(path);
936 }
e1992852 937#endif
65530632 938
23a177ef 939 if (r < 0)
2c4104f0 940 return r;
23a177ef 941
4cd1fbcc 942 if ((s->meta.load_state != UNIT_STUB))
23a177ef 943 break;
2c4104f0
LP		 944 }
945
946 return 0;
947}
948
e537352b 949static int service_load_sysv(Service *s) {
2c4104f0
LP		 950 const char *t;
951 Iterator i;
952 int r;
953
5cb5a6ff
LP		 954 assert(s);
955
956 /* Load service data from SysV init scripts, preferably with
957 * LSB headers ... */
958
4cd1fbcc 959 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
2c4104f0
LP		 960 return 0;
961
4cd1fbcc 962 if ((t = s->meta.id))
e537352b 963 if ((r = service_load_sysv_name(s, t)) < 0)
2c4104f0
LP		 964 return r;
965
4cd1fbcc
LP		 966 if (s->meta.load_state == UNIT_STUB)
967 SET_FOREACH(t, s->meta.names, i) {
968 if (t == s->meta.id)
e537352b
LP		 969 continue;
970
e364ad06 971 if ((r = service_load_sysv_name(s, t)) < 0)
23a177ef
LP		 972 return r;
973
4cd1fbcc 974 if (s->meta.load_state != UNIT_STUB)
23a177ef
LP		 975 break;
976 }
2c4104f0
LP		 977
978 return 0;
5cb5a6ff 979}
07459bb6 980#endif
5cb5a6ff 981
9fff8a1f
LP		 982static int fsck_fix_order(Service *s) {
983 Meta *other;
984 int r;
985
986 assert(s);
987
988 if (s->fsck_passno <= 0)
989 return 0;
990
991 /* For each pair of services where both have an fsck priority
992 * we order things based on it. */
993
994 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
995 Service *t;
996 UnitDependency d;
997
998 t = (Service*) other;
999
1000 if (s == t)
1001 continue;
1002
1003 if (t->meta.load_state != UNIT_LOADED)
1004 continue;
1005
1006 if (t->fsck_passno <= 0)
1007 continue;
1008
1009 if (t->fsck_passno < s->fsck_passno)
1010 d = UNIT_AFTER;
1011 else if (t->fsck_passno > s->fsck_passno)
1012 d = UNIT_BEFORE;
1013 else
1014 continue;
1015
1016 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1017 return r;
1018 }
1019
1020 return 0;
1021}
1022
243b1432
LP		 1023static int service_verify(Service *s) {
1024 assert(s);
1025
4cd1fbcc 1026 if (s->meta.load_state != UNIT_LOADED)
243b1432
LP		 1027 return 0;
1028
1029 if (!s->exec_command[SERVICE_EXEC_START]) {
4cd1fbcc 1030 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
243b1432
LP		 1031 return -EINVAL;
1032 }
1033
34e9ba66
LP		 1034 if (s->type != SERVICE_ONESHOT &&
1035 s->exec_command[SERVICE_EXEC_START]->command_next) {
1036 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
6cf6bbc2
LP		 1037 return -EINVAL;
1038 }
1039
c06b7a15
LP		 1040 if (s->type == SERVICE_ONESHOT &&
1041 s->exec_command[SERVICE_EXEC_RELOAD]) {
1042 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1043 return -EINVAL;
1044 }
1045
05e343b7 1046 if (s->type == SERVICE_DBUS && !s->bus_name) {
4d0e5dbd
LP		 1047 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1048 return -EINVAL;
1049 }
1050
2e22afe9 1051 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 1052 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
05e343b7
LP		 1053 return -EINVAL;
1054 }
1055
243b1432
LP		 1056 return 0;
1057}
1058
a40eb732
LP		 1059static int service_add_default_dependencies(Service *s) {
1060 int r;
1061
1062 assert(s);
1063
1064 /* Add a number of automatic dependencies useful for the
1065 * majority of services. */
1066
1067 /* First, pull in base system */
1068 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1069
1070 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1071 return r;
1072
af2d49f7 1073 } else if (s->meta.manager->running_as == MANAGER_USER) {
a40eb732
LP		 1074
1075 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1076 return r;
1077 }
1078
1079 /* Second, activate normal shutdown */
ead8e478 1080 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 1081}
1082
e537352b
LP		 1083static int service_load(Unit *u) {
1084 int r;
1085 Service *s = SERVICE(u);
1086
1087 assert(s);
1e2e8133 1088
5cb5a6ff 1089 /* Load a .service file */
e537352b 1090 if ((r = unit_load_fragment(u)) < 0)
5cb5a6ff
LP		 1091 return r;
1092
07459bb6 1093#ifdef HAVE_SYSV_COMPAT
bd77d0fc 1094 /* Load a classic init script as a fallback, if we couldn't find anything */
e537352b
LP		 1095 if (u->meta.load_state == UNIT_STUB)
1096 if ((r = service_load_sysv(s)) < 0)
23a177ef 1097 return r;
07459bb6 1098#endif
d46de8a1 1099
23a177ef 1100 /* Still nothing found? Then let's give up */
e537352b 1101 if (u->meta.load_state == UNIT_STUB)
23a177ef 1102 return -ENOENT;
034c6ed7 1103
23a177ef
LP		 1104 /* We were able to load something, then let's add in the
1105 * dropin directories. */
1106 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
8e274523 1107 return r;
23a177ef
LP		 1108
1109 /* This is a new unit? Then let's add in some extras */
e537352b 1110 if (u->meta.load_state == UNIT_LOADED) {
23a177ef
LP		 1111 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1112 return r;
1113
d686d8a9 1114 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef
LP		 1115 return r;
1116
07459bb6 1117#ifdef HAVE_SYSV_COMPAT
56d748b4 1118 if ((r = sysv_fix_order(s)) < 0)
23a177ef 1119 return r;
07459bb6 1120#endif
05e343b7 1121
9fff8a1f
LP		 1122 if ((r = fsck_fix_order(s)) < 0)
1123 return r;
1124
ee0dd802 1125 if (s->bus_name)
05e343b7 1126 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
a40eb732 1127 return r;
c952c6ec
LP		 1128
1129 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1130 s->notify_access = NOTIFY_MAIN;
a40eb732
LP		 1131
1132 if (s->type == SERVICE_DBUS || s->bus_name)
1133 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1134 return r;
1135
1136 if (s->meta.default_dependencies)
1137 if ((r = service_add_default_dependencies(s)) < 0)
1138 return r;
8e274523
LP		 1139 }
1140
243b1432 1141 return service_verify(s);
034c6ed7
LP		 1142}
1143
87f0e418 1144static void service_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 1145
5cb5a6ff 1146 ServiceExecCommand c;
87f0e418 1147 Service *s = SERVICE(u);
47be870b
LP		 1148 const char *prefix2;
1149 char *p2;
5cb5a6ff
LP		 1150
1151 assert(s);
1152
47be870b
LP		 1153 p2 = strappend(prefix, "\t");
1154 prefix2 = p2 ? p2 : prefix;
44d8db9e 1155
5cb5a6ff 1156 fprintf(f,
81a2b7ce
LP		 1157 "%sService State: %s\n"
1158 "%sPermissionsStartOnly: %s\n"
8e274523 1159 "%sRootDirectoryStartOnly: %s\n"
02ee865a 1160 "%sRemainAfterExit: %s\n"
3185a36b 1161 "%sGuessMainPID: %s\n"
c952c6ec 1162 "%sType: %s\n"
2cf3143a 1163 "%sRestart: %s\n"
c952c6ec 1164 "%sNotifyAccess: %s\n",
81a2b7ce
LP		 1165 prefix, service_state_to_string(s->state),
1166 prefix, yes_no(s->permissions_start_only),
8e274523 1167 prefix, yes_no(s->root_directory_start_only),
02ee865a 1168 prefix, yes_no(s->remain_after_exit),
3185a36b 1169 prefix, yes_no(s->guess_main_pid),
c952c6ec 1170 prefix, service_type_to_string(s->type),
2cf3143a 1171 prefix, service_restart_to_string(s->restart),
c952c6ec 1172 prefix, notify_access_to_string(s->notify_access));
5cb5a6ff 1173
70123e68
LP		 1174 if (s->control_pid > 0)
1175 fprintf(f,
bb00e604
LP		 1176 "%sControl PID: %lu\n",
1177 prefix, (unsigned long) s->control_pid);
70123e68
LP		 1178
1179 if (s->main_pid > 0)
1180 fprintf(f,
bb00e604
LP		 1181 "%sMain PID: %lu\n",
1182 prefix, (unsigned long) s->main_pid);
70123e68 1183
034c6ed7
LP		 1184 if (s->pid_file)
1185 fprintf(f,
1186 "%sPIDFile: %s\n",
1187 prefix, s->pid_file);
1188
05e343b7
LP		 1189 if (s->bus_name)
1190 fprintf(f,
1191 "%sBusName: %s\n"
1192 "%sBus Name Good: %s\n",
1193 prefix, s->bus_name,
1194 prefix, yes_no(s->bus_name_good));
1195
5cb5a6ff
LP		 1196 exec_context_dump(&s->exec_context, f, prefix);
1197
e537352b 1198 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
5cb5a6ff 1199
44d8db9e
LP		 1200 if (!s->exec_command[c])
1201 continue;
1202
40d50879 1203 fprintf(f, "%s-> %s:\n",
94f04347 1204 prefix, service_exec_command_to_string(c));
44d8db9e
LP		 1205
1206 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 1207 }
44d8db9e 1208
07459bb6 1209#ifdef HAVE_SYSV_COMPAT
2c4104f0
LP		 1210 if (s->sysv_path)
1211 fprintf(f,
23a177ef 1212 "%sSysV Init Script Path: %s\n"
9fff8a1f
LP		 1213 "%sSysV Init Script has LSB Header: %s\n"
1214 "%sSysVEnabled: %s\n",
23a177ef 1215 prefix, s->sysv_path,
9fff8a1f
LP		 1216 prefix, yes_no(s->sysv_has_lsb),
1217 prefix, yes_no(s->sysv_enabled));
2c4104f0
LP		 1218
1219 if (s->sysv_start_priority >= 0)
1220 fprintf(f,
9fff8a1f
LP		 1221 "%sSysVStartPriority: %i\n",
1222 prefix, s->sysv_start_priority);
2c4104f0 1223
8309400a
LP		 1224 if (s->sysv_runlevels)
1225 fprintf(f, "%sSysVRunLevels: %s\n",
1226 prefix, s->sysv_runlevels);
07459bb6 1227#endif
23a177ef 1228
9fff8a1f
LP		 1229 if (s->fsck_passno > 0)
1230 fprintf(f,
1231 "%sFsckPassNo: %i\n",
1232 prefix, s->fsck_passno);
1233
8c47c732
LP		 1234 if (s->status_text)
1235 fprintf(f, "%sStatus Text: %s\n",
1236 prefix, s->status_text);
1237
47be870b 1238 free(p2);
5cb5a6ff
LP		 1239}
1240
034c6ed7
LP		 1241static int service_load_pid_file(Service *s) {
1242 char *k;
034c6ed7 1243 int r;
5925dd3c 1244 pid_t pid;
034c6ed7
LP		 1245
1246 assert(s);
1247
034c6ed7
LP		 1248 if (!s->pid_file)
1249 return -ENOENT;
1250
1251 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1252 return r;
1253
5925dd3c
LP		 1254 r = parse_pid(k, &pid);
1255 free(k);
034c6ed7 1256
5925dd3c
LP		 1257 if (r < 0)
1258 return r;
406eaf93 1259
5925dd3c
LP		 1260 if (kill(pid, 0) < 0 && errno != EPERM) {
1261 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1262 (unsigned long) pid, s->pid_file);
b8c597d5
LP		 1263 return -ESRCH;
1264 }
1265
5925dd3c 1266 if ((r = service_set_main_pid(s, pid)) < 0)
16f6025e
LP		 1267 return r;
1268
5925dd3c
LP		 1269 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1270 /* FIXME: we need to do something here */
1271 return r;
034c6ed7
LP		 1272
1273 return 0;
1274}
1275
4fbf50b3
LP		 1276static int service_search_main_pid(Service *s) {
1277 pid_t pid;
1278 int r;
1279
1280 assert(s);
1281
3185a36b
LP		 1282 /* If we know it anyway, don't ever fallback to unreliable
1283 * heuristics */
4fbf50b3
LP		 1284 if (s->main_pid_known)
1285 return 0;
1286
3185a36b
LP		 1287 if (!s->guess_main_pid)
1288 return 0;
1289
4fbf50b3
LP		 1290 assert(s->main_pid <= 0);
1291
1292 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1293 return -ENOENT;
1294
1295 if ((r = service_set_main_pid(s, pid)) < 0)
1296 return r;
1297
1298 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1299 /* FIXME: we need to do something here */
1300 return r;
1301
1302 return 0;
1303}
1304
3e33402a
LP		 1305static int service_get_sockets(Service *s, Set **_set) {
1306 Set *set;
ceee3d82
LP		 1307 Iterator i;
1308 char *t;
3e33402a 1309 int r;
ceee3d82
LP		 1310
1311 assert(s);
3e33402a
LP		 1312 assert(_set);
1313
6cf6bbc2
LP		 1314 if (s->socket_fd >= 0)
1315 return 0;
1316
f976f3f6
LP		 1317 if (!set_isempty(s->configured_sockets))
1318 return 0;
1319
3e33402a
LP		 1320 /* Collects all Socket objects that belong to this
1321 * service. Note that a service might have multiple sockets
1322 * via multiple names. */
1323
1324 if (!(set = set_new(NULL, NULL)))
1325 return -ENOMEM;
ceee3d82 1326
4cd1fbcc 1327 SET_FOREACH(t, s->meta.names, i) {
ceee3d82
LP		 1328 char *k;
1329 Unit *p;
1330
1331 /* Look for all socket objects that go by any of our
1332 * units and collect their fds */
1333
3e33402a
LP		 1334 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1335 r = -ENOMEM;
1336 goto fail;
1337 }
ceee3d82 1338
4cd1fbcc 1339 p = manager_get_unit(s->meta.manager, k);
ceee3d82
LP		 1340 free(k);
1341
8d567588
LP		 1342 if (!p)
1343 continue;
ceee3d82 1344
3e33402a
LP		 1345 if ((r = set_put(set, p)) < 0)
1346 goto fail;
ceee3d82
LP		 1347 }
1348
3e33402a
LP		 1349 *_set = set;
1350 return 0;
1351
1352fail:
1353 set_free(set);
1354 return r;
1355}
1356
e537352b 1357static int service_notify_sockets_dead(Service *s) {
3e33402a 1358 Iterator i;
f976f3f6 1359 Set *set, *free_set = NULL;
47be870b 1360 Socket *sock;
3e33402a
LP		 1361 int r;
1362
1363 assert(s);
1364
f976f3f6
LP		 1365 /* Notifies all our sockets when we die */
1366
6cf6bbc2
LP		 1367 if (s->socket_fd >= 0)
1368 return 0;
1369
f976f3f6
LP		 1370 if (!set_isempty(s->configured_sockets))
1371 set = s->configured_sockets;
1372 else {
1373 if ((r = service_get_sockets(s, &free_set)) < 0)
1374 return r;
1375
1376 set = free_set;
1377 }
3e33402a 1378
47be870b
LP		 1379 SET_FOREACH(sock, set, i)
1380 socket_notify_service_dead(sock);
3e33402a 1381
f976f3f6 1382 set_free(free_set);
3e33402a 1383
ceee3d82
LP		 1384 return 0;
1385}
1386
034c6ed7
LP		 1387static void service_set_state(Service *s, ServiceState state) {
1388 ServiceState old_state;
5cb5a6ff
LP		 1389 assert(s);
1390
034c6ed7 1391 old_state = s->state;
5cb5a6ff 1392 s->state = state;
034c6ed7
LP		 1393
1394 if (state != SERVICE_START_PRE &&
1395 state != SERVICE_START &&
1396 state != SERVICE_START_POST &&
1397 state != SERVICE_RELOAD &&
1398 state != SERVICE_STOP &&
1399 state != SERVICE_STOP_SIGTERM &&
1400 state != SERVICE_STOP_SIGKILL &&
1401 state != SERVICE_STOP_POST &&
1402 state != SERVICE_FINAL_SIGTERM &&
1403 state != SERVICE_FINAL_SIGKILL &&
1404 state != SERVICE_AUTO_RESTART)
acbb0225 1405 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1406
7d55e835
LP		 1407 if (state != SERVICE_START &&
1408 state != SERVICE_START_POST &&
034c6ed7
LP		 1409 state != SERVICE_RUNNING &&
1410 state != SERVICE_RELOAD &&
1411 state != SERVICE_STOP &&
1412 state != SERVICE_STOP_SIGTERM &&
867b3b7d 1413 state != SERVICE_STOP_SIGKILL) {
5e94833f 1414 service_unwatch_main_pid(s);
867b3b7d
LP		 1415 s->main_command = NULL;
1416 }
034c6ed7
LP		 1417
1418 if (state != SERVICE_START_PRE &&
1419 state != SERVICE_START &&
1420 state != SERVICE_START_POST &&
1421 state != SERVICE_RELOAD &&
1422 state != SERVICE_STOP &&
1423 state != SERVICE_STOP_SIGTERM &&
1424 state != SERVICE_STOP_SIGKILL &&
1425 state != SERVICE_STOP_POST &&
1426 state != SERVICE_FINAL_SIGTERM &&
e537352b 1427 state != SERVICE_FINAL_SIGKILL) {
5e94833f 1428 service_unwatch_control_pid(s);
034c6ed7 1429 s->control_command = NULL;
a16e1123 1430 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
e537352b 1431 }
034c6ed7 1432
ceee3d82
LP		 1433 if (state == SERVICE_DEAD ||
1434 state == SERVICE_STOP ||
1435 state == SERVICE_STOP_SIGTERM ||
1436 state == SERVICE_STOP_SIGKILL ||
1437 state == SERVICE_STOP_POST ||
1438 state == SERVICE_FINAL_SIGTERM ||
1439 state == SERVICE_FINAL_SIGKILL ||
fdf20a31 1440 state == SERVICE_FAILED ||
ceee3d82 1441 state == SERVICE_AUTO_RESTART)
e537352b 1442 service_notify_sockets_dead(s);
ceee3d82 1443
4f2d528d
LP		 1444 if (state != SERVICE_START_PRE &&
1445 state != SERVICE_START &&
6cf6bbc2
LP		 1446 state != SERVICE_START_POST &&
1447 state != SERVICE_RUNNING &&
1448 state != SERVICE_RELOAD &&
1449 state != SERVICE_STOP &&
1450 state != SERVICE_STOP_SIGTERM &&
1451 state != SERVICE_STOP_SIGKILL &&
1452 state != SERVICE_STOP_POST &&
1453 state != SERVICE_FINAL_SIGTERM &&
1454 state != SERVICE_FINAL_SIGKILL &&
4cd1fbcc 1455 !(state == SERVICE_DEAD && s->meta.job)) {
4f2d528d 1456 service_close_socket_fd(s);
6cf6bbc2
LP		 1457 service_connection_unref(s);
1458 }
4f2d528d 1459
f6023656
LP		 1460 /* For the inactive states unit_notify() will trim the cgroup,
1461 * but for exit we have to do that ourselves... */
1462 if (state == SERVICE_EXITED)
1463 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1464
e537352b 1465 if (old_state != state)
4cd1fbcc 1466 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
acbb0225 1467
e2f3b44c
LP		 1468 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1469 s->reload_failure = false;
034c6ed7
LP		 1470}
1471
a16e1123
LP		 1472static int service_coldplug(Unit *u) {
1473 Service *s = SERVICE(u);
1474 int r;
1475
1476 assert(s);
1477 assert(s->state == SERVICE_DEAD);
1478
1479 if (s->deserialized_state != s->state) {
1480
1481 if (s->deserialized_state == SERVICE_START_PRE ||
1482 s->deserialized_state == SERVICE_START ||
1483 s->deserialized_state == SERVICE_START_POST ||
1484 s->deserialized_state == SERVICE_RELOAD ||
1485 s->deserialized_state == SERVICE_STOP ||
1486 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1487 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1488 s->deserialized_state == SERVICE_STOP_POST ||
1489 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1490 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
e558336f
LP		 1491 s->deserialized_state == SERVICE_AUTO_RESTART) {
1492
1493 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1494 usec_t k;
1495
1496 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1497
1498 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1499 return r;
1500 }
1501 }
a16e1123
LP		 1502
1503 if ((s->deserialized_state == SERVICE_START &&
1504 (s->type == SERVICE_FORKING ||
8c47c732 1505 s->type == SERVICE_DBUS ||
34e9ba66 1506 s->type == SERVICE_ONESHOT ||
8c47c732 1507 s->type == SERVICE_NOTIFY)) ||
a16e1123
LP		 1508 s->deserialized_state == SERVICE_START_POST ||
1509 s->deserialized_state == SERVICE_RUNNING ||
1510 s->deserialized_state == SERVICE_RELOAD ||
1511 s->deserialized_state == SERVICE_STOP ||
1512 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1513 s->deserialized_state == SERVICE_STOP_SIGKILL)
1514 if (s->main_pid > 0)
1515 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1516 return r;
1517
1518 if (s->deserialized_state == SERVICE_START_PRE ||
1519 s->deserialized_state == SERVICE_START ||
1520 s->deserialized_state == SERVICE_START_POST ||
1521 s->deserialized_state == SERVICE_RELOAD ||
1522 s->deserialized_state == SERVICE_STOP ||
1523 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1524 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1525 s->deserialized_state == SERVICE_STOP_POST ||
1526 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1527 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1528 if (s->control_pid > 0)
1529 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1530 return r;
1531
1532 service_set_state(s, s->deserialized_state);
1533 }
1534
1535 return 0;
1536}
1537
44d8db9e
LP		 1538static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1539 Iterator i;
1540 int r;
1541 int *rfds = NULL;
1542 unsigned rn_fds = 0;
f976f3f6 1543 Set *set, *free_set = NULL;
47be870b 1544 Socket *sock;
44d8db9e
LP		 1545
1546 assert(s);
1547 assert(fds);
1548 assert(n_fds);
1549
6cf6bbc2
LP		 1550 if (s->socket_fd >= 0)
1551 return 0;
1552
f976f3f6
LP		 1553 if (!set_isempty(s->configured_sockets))
1554 set = s->configured_sockets;
1555 else {
1556 if ((r = service_get_sockets(s, &free_set)) < 0)
1557 return r;
1558
1559 set = free_set;
1560 }
3e33402a 1561
47be870b 1562 SET_FOREACH(sock, set, i) {
44d8db9e
LP		 1563 int *cfds;
1564 unsigned cn_fds;
1565
47be870b 1566 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
44d8db9e
LP		 1567 goto fail;
1568
1569 if (!cfds)
1570 continue;
1571
1572 if (!rfds) {
1573 rfds = cfds;
1574 rn_fds = cn_fds;
1575 } else {
1576 int *t;
1577
1578 if (!(t = new(int, rn_fds+cn_fds))) {
1579 free(cfds);
1580 r = -ENOMEM;
1581 goto fail;
1582 }
1583
1584 memcpy(t, rfds, rn_fds);
1585 memcpy(t+rn_fds, cfds, cn_fds);
1586 free(rfds);
1587 free(cfds);
1588
1589 rfds = t;
1590 rn_fds = rn_fds+cn_fds;
1591 }
1592 }
1593
1594 *fds = rfds;
1595 *n_fds = rn_fds;
3e33402a 1596
f976f3f6 1597 set_free(free_set);
3e33402a 1598
44d8db9e
LP		 1599 return 0;
1600
1601fail:
3e33402a 1602 set_free(set);
44d8db9e 1603 free(rfds);
3e33402a 1604
44d8db9e
LP		 1605 return r;
1606}
1607
81a2b7ce
LP		 1608static int service_spawn(
1609 Service *s,
1610 ExecCommand *c,
1611 bool timeout,
1612 bool pass_fds,
1613 bool apply_permissions,
1614 bool apply_chroot,
1e3ad081 1615 bool apply_tty_stdin,
c952c6ec 1616 bool set_notify_socket,
81a2b7ce
LP		 1617 pid_t *_pid) {
1618
034c6ed7
LP		 1619 pid_t pid;
1620 int r;
6cf6bbc2 1621 int *fds = NULL, *fdsbuf = NULL;
2105e76a
LP		 1622 unsigned n_fds = 0, n_env = 0;
1623 char **argv = NULL, **final_env = NULL, **our_env = NULL;
034c6ed7
LP		 1624
1625 assert(s);
1626 assert(c);
1627 assert(_pid);
1628
6cf6bbc2
LP		 1629 if (pass_fds ||
1630 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1631 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1632 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1633
4f2d528d
LP		 1634 if (s->socket_fd >= 0) {
1635 fds = &s->socket_fd;
1636 n_fds = 1;
6cf6bbc2
LP		 1637 } else {
1638 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1639 goto fail;
1640
1641 fds = fdsbuf;
1642 }
4f2d528d 1643 }
44d8db9e 1644
e558336f 1645 if (timeout && s->timeout_usec) {
acbb0225 1646 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1647 goto fail;
1648 } else
acbb0225 1649 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7 1650
9e2f7c11
LP		 1651 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1652 r = -ENOMEM;
1653 goto fail;
1654 }
1655
9865f3b4 1656 if (!(our_env = new0(char*, 4))) {
2105e76a
LP		 1657 r = -ENOMEM;
1658 goto fail;
1659 }
c952c6ec 1660
2105e76a 1661 if (set_notify_socket)
91b22f21 1662 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
c952c6ec
LP		 1663 r = -ENOMEM;
1664 goto fail;
1665 }
1666
2105e76a
LP		 1667 if (s->main_pid > 0)
1668 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
c952c6ec
LP		 1669 r = -ENOMEM;
1670 goto fail;
1671 }
2105e76a
LP		 1672
1673 if (!(final_env = strv_env_merge(2,
1674 s->meta.manager->environment,
1675 our_env,
1676 NULL))) {
1677 r = -ENOMEM;
1678 goto fail;
1679 }
c952c6ec 1680
9e2f7c11
LP		 1681 r = exec_spawn(c,
1682 argv,
1683 &s->exec_context,
1684 fds, n_fds,
2105e76a 1685 final_env,
9e2f7c11
LP		 1686 apply_permissions,
1687 apply_chroot,
1e3ad081 1688 apply_tty_stdin,
4cd1fbcc
LP		 1689 s->meta.manager->confirm_spawn,
1690 s->meta.cgroup_bondings,
9e2f7c11
LP		 1691 &pid);
1692
9e2f7c11 1693 if (r < 0)
034c6ed7
LP		 1694 goto fail;
1695
4f2d528d 1696
87f0e418 1697 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 1698 /* FIXME: we need to do something here */
1699 goto fail;
1700
2105e76a
LP		 1701 free(fdsbuf);
1702 strv_free(argv);
1703 strv_free(our_env);
1704 strv_free(final_env);
1705
034c6ed7
LP		 1706 *_pid = pid;
1707
5cb5a6ff 1708 return 0;
034c6ed7
LP		 1709
1710fail:
2105e76a 1711 free(fdsbuf);
c952c6ec 1712 strv_free(argv);
2105e76a
LP		 1713 strv_free(our_env);
1714 strv_free(final_env);
c952c6ec 1715
034c6ed7 1716 if (timeout)
acbb0225 1717 unit_unwatch_timer(UNIT(s), &s->timer_watch);
034c6ed7
LP		 1718
1719 return r;
1720}
1721
80876c20
LP		 1722static int main_pid_good(Service *s) {
1723 assert(s);
1724
1725 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1726 * don't know */
1727
1728 /* If we know the pid file, then lets just check if it is
1729 * still valid */
1730 if (s->main_pid_known)
1731 return s->main_pid > 0;
1732
1733 /* We don't know the pid */
1734 return -EAGAIN;
1735}
1736
1737static int control_pid_good(Service *s) {
1738 assert(s);
1739
1740 return s->control_pid > 0;
1741}
1742
1743static int cgroup_good(Service *s) {
1744 int r;
1745
1746 assert(s);
1747
4cd1fbcc 1748 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
80876c20
LP		 1749 return r;
1750
1751 return !r;
1752}
1753
034c6ed7
LP		 1754static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1755 int r;
1756 assert(s);
1757
1758 if (!success)
1759 s->failure = true;
1760
1761 if (allow_restart &&
47342320 1762 !s->forbid_restart &&
034c6ed7 1763 (s->restart == SERVICE_RESTART_ALWAYS ||
50caaedb
LP		 1764 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1765 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1766 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1767 (s->main_exec_status.code == CLD_KILLED ||
1768 s->main_exec_status.code == CLD_DUMPED)))) {
034c6ed7 1769
acbb0225 1770 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
034c6ed7
LP		 1771 goto fail;
1772
1773 service_set_state(s, SERVICE_AUTO_RESTART);
1774 } else
fdf20a31 1775 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
034c6ed7 1776
47342320
LP		 1777 s->forbid_restart = false;
1778
034c6ed7
LP		 1779 return;
1780
1781fail:
4cd1fbcc 1782 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1783 service_enter_dead(s, false, false);
1784}
1785
1786static void service_enter_signal(Service *s, ServiceState state, bool success);
1787
1788static void service_enter_stop_post(Service *s, bool success) {
1789 int r;
1790 assert(s);
1791
1792 if (!success)
1793 s->failure = true;
1794
5e94833f
LP		 1795 service_unwatch_control_pid(s);
1796
80876c20 1797 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
867b3b7d
LP		 1798 s->control_command_id = SERVICE_EXEC_STOP_POST;
1799
81a2b7ce
LP		 1800 if ((r = service_spawn(s,
1801 s->control_command,
1802 true,
1803 false,
1804 !s->permissions_start_only,
1805 !s->root_directory_start_only,
1e3ad081 1806 true,
c952c6ec 1807 false,
81a2b7ce 1808 &s->control_pid)) < 0)
034c6ed7
LP		 1809 goto fail;
1810
d6ea93e3 1811
80876c20
LP		 1812 service_set_state(s, SERVICE_STOP_POST);
1813 } else
1814 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
034c6ed7
LP		 1815
1816 return;
1817
1818fail:
4cd1fbcc 1819 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1820 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1821}
1822
1823static void service_enter_signal(Service *s, ServiceState state, bool success) {
1824 int r;
ca949c9d
LP		 1825 Set *pid_set = NULL;
1826 bool wait_for_exit = false;
034c6ed7
LP		 1827
1828 assert(s);
1829
1830 if (!success)
1831 s->failure = true;
1832
2e22afe9
LP		 1833 if (s->exec_context.kill_mode != KILL_NONE) {
1834 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1835
ca949c9d 1836 if (s->main_pid > 0) {
430c18ed
LP		 1837 if (kill_and_sigcont(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1838 -s->main_pid :
1839 s->main_pid, sig) < 0 && errno != ESRCH)
034c6ed7 1840
ca949c9d
LP		 1841 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1842 else
1843 wait_for_exit = true;
034c6ed7
LP		 1844 }
1845
ca949c9d 1846 if (s->control_pid > 0) {
430c18ed
LP		 1847 if (kill_and_sigcont(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1848 -s->control_pid :
1849 s->control_pid, sig) < 0 && errno != ESRCH)
80876c20 1850
ca949c9d
LP		 1851 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1852 else
1853 wait_for_exit = true;
1854 }
50159e6a 1855
ca949c9d 1856 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
50159e6a 1857
ca949c9d
LP		 1858 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1859 r = -ENOMEM;
50159e6a 1860 goto fail;
ca949c9d
LP		 1861 }
1862
1863 /* Exclude the main/control pids from being killed via the cgroup */
1864 if (s->main_pid > 0)
1865 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1866 goto fail;
1867
1868 if (s->control_pid > 0)
1869 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1870 goto fail;
1871
430c18ed 1872 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1873 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1874 log_warning("Failed to kill control group: %s", strerror(-r));
f5a50114 1875 } else if (r > 0)
ca949c9d
LP		 1876 wait_for_exit = true;
1877
1878 set_free(pid_set);
50159e6a 1879 }
d6ea93e3 1880 }
034c6ed7 1881
ca949c9d 1882 if (wait_for_exit) {
e558336f
LP		 1883 if (s->timeout_usec > 0)
1884 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1885 goto fail;
d6ea93e3 1886
80876c20
LP		 1887 service_set_state(s, state);
1888 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1889 service_enter_stop_post(s, true);
1890 else
034c6ed7
LP		 1891 service_enter_dead(s, true, true);
1892
1893 return;
1894
1895fail:
4cd1fbcc 1896 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7 1897
80876c20 1898 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
034c6ed7
LP		 1899 service_enter_stop_post(s, false);
1900 else
1901 service_enter_dead(s, false, true);
ca949c9d
LP		 1902
1903 if (pid_set)
1904 set_free(pid_set);
034c6ed7
LP		 1905}
1906
1907static void service_enter_stop(Service *s, bool success) {
1908 int r;
5925dd3c 1909
034c6ed7
LP		 1910 assert(s);
1911
1912 if (!success)
1913 s->failure = true;
1914
5e94833f
LP		 1915 service_unwatch_control_pid(s);
1916
80876c20 1917 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
867b3b7d
LP		 1918 s->control_command_id = SERVICE_EXEC_STOP;
1919
81a2b7ce
LP		 1920 if ((r = service_spawn(s,
1921 s->control_command,
1922 true,
1923 false,
1924 !s->permissions_start_only,
1925 !s->root_directory_start_only,
c952c6ec 1926 false,
1e3ad081 1927 false,
e55224ca 1928 &s->control_pid)) < 0)
034c6ed7
LP		 1929 goto fail;
1930
80876c20
LP		 1931 service_set_state(s, SERVICE_STOP);
1932 } else
034c6ed7
LP		 1933 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1934
1935 return;
1936
1937fail:
4cd1fbcc 1938 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1939 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1940}
1941
80876c20 1942static void service_enter_running(Service *s, bool success) {
4eab639f 1943 int main_pid_ok, cgroup_ok;
80876c20
LP		 1944 assert(s);
1945
1946 if (!success)
1947 s->failure = true;
1948
4eab639f
LP		 1949 main_pid_ok = main_pid_good(s);
1950 cgroup_ok = cgroup_good(s);
1951
1952 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
05e343b7 1953 (s->bus_name_good || s->type != SERVICE_DBUS))
80876c20 1954 service_set_state(s, SERVICE_RUNNING);
02ee865a 1955 else if (s->remain_after_exit)
80876c20
LP		 1956 service_set_state(s, SERVICE_EXITED);
1957 else
1958 service_enter_stop(s, true);
1959}
1960
034c6ed7
LP		 1961static void service_enter_start_post(Service *s) {
1962 int r;
1963 assert(s);
1964
5e94833f
LP		 1965 service_unwatch_control_pid(s);
1966
80876c20 1967 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
867b3b7d
LP		 1968 s->control_command_id = SERVICE_EXEC_START_POST;
1969
81a2b7ce
LP		 1970 if ((r = service_spawn(s,
1971 s->control_command,
1972 true,
1973 false,
1974 !s->permissions_start_only,
1975 !s->root_directory_start_only,
c952c6ec 1976 false,
1e3ad081 1977 false,
e55224ca 1978 &s->control_pid)) < 0)
034c6ed7
LP		 1979 goto fail;
1980
80876c20
LP		 1981 service_set_state(s, SERVICE_START_POST);
1982 } else
1983 service_enter_running(s, true);
034c6ed7
LP		 1984
1985 return;
1986
1987fail:
4cd1fbcc 1988 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1989 service_enter_stop(s, false);
1990}
1991
1992static void service_enter_start(Service *s) {
1993 pid_t pid;
1994 int r;
867b3b7d 1995 ExecCommand *c;
034c6ed7
LP		 1996
1997 assert(s);
1998
1999 assert(s->exec_command[SERVICE_EXEC_START]);
34e9ba66 2000 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
034c6ed7 2001
80876c20
LP		 2002 if (s->type == SERVICE_FORKING)
2003 service_unwatch_control_pid(s);
2004 else
2005 service_unwatch_main_pid(s);
2006
867b3b7d
LP		 2007 if (s->type == SERVICE_FORKING) {
2008 s->control_command_id = SERVICE_EXEC_START;
2009 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2010
2011 s->main_command = NULL;
2012 } else {
2013 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2014 s->control_command = NULL;
2015
2016 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2017 }
34e9ba66 2018
81a2b7ce 2019 if ((r = service_spawn(s,
867b3b7d 2020 c,
8c47c732 2021 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
81a2b7ce
LP		 2022 true,
2023 true,
2024 true,
1e3ad081 2025 true,
c952c6ec 2026 s->notify_access != NOTIFY_NONE,
81a2b7ce 2027 &pid)) < 0)
034c6ed7
LP		 2028 goto fail;
2029
2030 if (s->type == SERVICE_SIMPLE) {
2031 /* For simple services we immediately start
2032 * the START_POST binaries. */
2033
5925dd3c 2034 service_set_main_pid(s, pid);
034c6ed7
LP		 2035 service_enter_start_post(s);
2036
2037 } else if (s->type == SERVICE_FORKING) {
2038
2039 /* For forking services we wait until the start
2040 * process exited. */
2041
e55224ca 2042 s->control_pid = pid;
80876c20
LP		 2043 service_set_state(s, SERVICE_START);
2044
34e9ba66 2045 } else if (s->type == SERVICE_ONESHOT ||
8c47c732
LP		 2046 s->type == SERVICE_DBUS ||
2047 s->type == SERVICE_NOTIFY) {
7d55e835 2048
34e9ba66 2049 /* For oneshot services we wait until the start
7d55e835
LP		 2050 * process exited, too, but it is our main process. */
2051
05e343b7 2052 /* For D-Bus services we know the main pid right away,
8c47c732
LP		 2053 * but wait for the bus name to appear on the
2054 * bus. Notify services are similar. */
05e343b7 2055
5925dd3c 2056 service_set_main_pid(s, pid);
80876c20 2057 service_set_state(s, SERVICE_START);
034c6ed7
LP		 2058 } else
2059 assert_not_reached("Unknown service type");
2060
2061 return;
2062
2063fail:
4cd1fbcc 2064 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
80876c20 2065 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2066}
2067
2068static void service_enter_start_pre(Service *s) {
2069 int r;
2070
2071 assert(s);
2072
5e94833f
LP		 2073 service_unwatch_control_pid(s);
2074
80876c20 2075 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
867b3b7d
LP		 2076 s->control_command_id = SERVICE_EXEC_START_PRE;
2077
81a2b7ce
LP		 2078 if ((r = service_spawn(s,
2079 s->control_command,
2080 true,
2081 false,
2082 !s->permissions_start_only,
2083 !s->root_directory_start_only,
1e3ad081 2084 true,
c952c6ec 2085 false,
e55224ca 2086 &s->control_pid)) < 0)
034c6ed7
LP		 2087 goto fail;
2088
80876c20
LP		 2089 service_set_state(s, SERVICE_START_PRE);
2090 } else
034c6ed7
LP		 2091 service_enter_start(s);
2092
2093 return;
2094
2095fail:
4cd1fbcc 2096 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 2097 service_enter_dead(s, false, true);
2098}
2099
2100static void service_enter_restart(Service *s) {
2101 int r;
398ef8ba
LP		 2102 DBusError error;
2103
034c6ed7 2104 assert(s);
398ef8ba 2105 dbus_error_init(&error);
034c6ed7 2106
2edfa366
LP		 2107 if (s->meta.job) {
2108 log_info("Job pending for unit, delaying automatic restart.");
2109
2110 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2111 goto fail;
2112 }
2113
9ea9a0c8
LP		 2114 service_enter_dead(s, true, false);
2115
7b2603e6 2116 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
034c6ed7
LP		 2117 goto fail;
2118
4cd1fbcc 2119 log_debug("%s scheduled restart job.", s->meta.id);
034c6ed7
LP		 2120 return;
2121
2122fail:
398ef8ba 2123 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
034c6ed7 2124 service_enter_dead(s, false, false);
398ef8ba
LP		 2125
2126 dbus_error_free(&error);
034c6ed7
LP		 2127}
2128
2129static void service_enter_reload(Service *s) {
2130 int r;
2131
2132 assert(s);
2133
5e94833f
LP		 2134 service_unwatch_control_pid(s);
2135
80876c20 2136 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
867b3b7d
LP		 2137 s->control_command_id = SERVICE_EXEC_RELOAD;
2138
81a2b7ce
LP		 2139 if ((r = service_spawn(s,
2140 s->control_command,
2141 true,
2142 false,
2143 !s->permissions_start_only,
2144 !s->root_directory_start_only,
c952c6ec 2145 false,
1e3ad081 2146 false,
e55224ca 2147 &s->control_pid)) < 0)
034c6ed7
LP		 2148 goto fail;
2149
80876c20
LP		 2150 service_set_state(s, SERVICE_RELOAD);
2151 } else
2152 service_enter_running(s, true);
034c6ed7
LP		 2153
2154 return;
2155
2156fail:
4cd1fbcc 2157 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
e2f3b44c
LP		 2158 s->reload_failure = true;
2159 service_enter_running(s, true);
034c6ed7
LP		 2160}
2161
34e9ba66 2162static void service_run_next_control(Service *s, bool success) {
034c6ed7
LP		 2163 int r;
2164
2165 assert(s);
2166 assert(s->control_command);
2167 assert(s->control_command->command_next);
2168
2169 if (!success)
2170 s->failure = true;
2171
34e9ba66 2172 assert(s->control_command_id != SERVICE_EXEC_START);
034c6ed7 2173
34e9ba66 2174 s->control_command = s->control_command->command_next;
5e94833f
LP		 2175 service_unwatch_control_pid(s);
2176
81a2b7ce
LP		 2177 if ((r = service_spawn(s,
2178 s->control_command,
2179 true,
2180 false,
2181 !s->permissions_start_only,
2182 !s->root_directory_start_only,
5830833f
LP		 2183 s->control_command_id == SERVICE_EXEC_START_PRE ||
2184 s->control_command_id == SERVICE_EXEC_STOP_POST,
1e3ad081 2185 false,
e55224ca 2186 &s->control_pid)) < 0)
034c6ed7
LP		 2187 goto fail;
2188
2189 return;
2190
2191fail:
34e9ba66 2192 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
034c6ed7 2193
80876c20
LP		 2194 if (s->state == SERVICE_START_PRE)
2195 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2196 else if (s->state == SERVICE_STOP)
2197 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
034c6ed7
LP		 2198 else if (s->state == SERVICE_STOP_POST)
2199 service_enter_dead(s, false, true);
e2f3b44c
LP		 2200 else if (s->state == SERVICE_RELOAD) {
2201 s->reload_failure = true;
2202 service_enter_running(s, true);
2203 } else
034c6ed7 2204 service_enter_stop(s, false);
5cb5a6ff
LP		 2205}
2206
34e9ba66
LP		 2207static void service_run_next_main(Service *s, bool success) {
2208 pid_t pid;
2209 int r;
2210
2211 assert(s);
867b3b7d
LP		 2212 assert(s->main_command);
2213 assert(s->main_command->command_next);
2214 assert(s->type == SERVICE_ONESHOT);
34e9ba66
LP		 2215
2216 if (!success)
2217 s->failure = true;
2218
867b3b7d 2219 s->main_command = s->main_command->command_next;
34e9ba66
LP		 2220 service_unwatch_main_pid(s);
2221
2222 if ((r = service_spawn(s,
867b3b7d 2223 s->main_command,
34e9ba66
LP		 2224 false,
2225 true,
2226 true,
2227 true,
2228 true,
2229 s->notify_access != NOTIFY_NONE,
2230 &pid)) < 0)
2231 goto fail;
2232
2233 service_set_main_pid(s, pid);
2234
2235 return;
2236
2237fail:
2238 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2239 service_enter_stop(s, false);
2240}
2241
87f0e418
LP		 2242static int service_start(Unit *u) {
2243 Service *s = SERVICE(u);
5cb5a6ff
LP		 2244
2245 assert(s);
2246
034c6ed7
LP		 2247 /* We cannot fulfill this request right now, try again later
2248 * please! */
2249 if (s->state == SERVICE_STOP ||
2250 s->state == SERVICE_STOP_SIGTERM ||
2251 s->state == SERVICE_STOP_SIGKILL ||
2252 s->state == SERVICE_STOP_POST ||
2253 s->state == SERVICE_FINAL_SIGTERM ||
2254 s->state == SERVICE_FINAL_SIGKILL)
5cb5a6ff
LP		 2255 return -EAGAIN;
2256
034c6ed7
LP		 2257 /* Already on it! */
2258 if (s->state == SERVICE_START_PRE ||
2259 s->state == SERVICE_START ||
2260 s->state == SERVICE_START_POST)
2261 return 0;
2262
fdf20a31 2263 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
5cb5a6ff 2264
1e2e8133
LP		 2265 /* Make sure we don't enter a busy loop of some kind. */
2266 if (!ratelimit_test(&s->ratelimit)) {
9e2f7c11 2267 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
d5159713 2268 return -ECANCELED;
1e2e8133
LP		 2269 }
2270
034c6ed7
LP		 2271 s->failure = false;
2272 s->main_pid_known = false;
47342320 2273 s->forbid_restart = false;
034c6ed7
LP		 2274
2275 service_enter_start_pre(s);
2276 return 0;
5cb5a6ff
LP		 2277}
2278
87f0e418
LP		 2279static int service_stop(Unit *u) {
2280 Service *s = SERVICE(u);
5cb5a6ff
LP		 2281
2282 assert(s);
2283
3f6c78dc
LP		 2284 /* This is a user request, so don't do restarts on this
2285 * shutdown. */
47342320 2286 s->forbid_restart = true;
034c6ed7 2287
e537352b
LP		 2288 /* Already on it */
2289 if (s->state == SERVICE_STOP ||
2290 s->state == SERVICE_STOP_SIGTERM ||
2291 s->state == SERVICE_STOP_SIGKILL ||
2292 s->state == SERVICE_STOP_POST ||
2293 s->state == SERVICE_FINAL_SIGTERM ||
2294 s->state == SERVICE_FINAL_SIGKILL)
2295 return 0;
2296
3f6c78dc 2297 /* Don't allow a restart */
034c6ed7
LP		 2298 if (s->state == SERVICE_AUTO_RESTART) {
2299 service_set_state(s, SERVICE_DEAD);
2300 return 0;
2301 }
2302
3f6c78dc
LP		 2303 /* If there's already something running we go directly into
2304 * kill mode. */
2305 if (s->state == SERVICE_START_PRE ||
2306 s->state == SERVICE_START ||
2307 s->state == SERVICE_START_POST ||
2308 s->state == SERVICE_RELOAD) {
2309 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2310 return 0;
2311 }
5cb5a6ff 2312
3f6c78dc
LP		 2313 assert(s->state == SERVICE_RUNNING ||
2314 s->state == SERVICE_EXITED);
3a762661 2315
034c6ed7 2316 service_enter_stop(s, true);
5cb5a6ff
LP		 2317 return 0;
2318}
2319
87f0e418
LP		 2320static int service_reload(Unit *u) {
2321 Service *s = SERVICE(u);
034c6ed7
LP		 2322
2323 assert(s);
2324
80876c20 2325 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
034c6ed7
LP		 2326
2327 service_enter_reload(s);
5cb5a6ff
LP		 2328 return 0;
2329}
2330
87f0e418
LP		 2331static bool service_can_reload(Unit *u) {
2332 Service *s = SERVICE(u);
034c6ed7
LP		 2333
2334 assert(s);
2335
2336 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2337}
2338
a16e1123
LP		 2339static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2340 Service *s = SERVICE(u);
2341
2342 assert(u);
2343 assert(f);
2344 assert(fds);
2345
2346 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2347 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2348
2349 if (s->control_pid > 0)
5925dd3c 2350 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123 2351
5925dd3c
LP		 2352 if (s->main_pid_known && s->main_pid > 0)
2353 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
a16e1123
LP		 2354
2355 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2356
3a2776bc
LP		 2357 if (s->status_text)
2358 unit_serialize_item(u, f, "status-text", s->status_text);
2359
a16e1123
LP		 2360 /* There's a minor uncleanliness here: if there are multiple
2361 * commands attached here, we will start from the first one
2362 * again */
2363 if (s->control_command_id >= 0)
825636e5 2364 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
a16e1123
LP		 2365
2366 if (s->socket_fd >= 0) {
2367 int copy;
2368
2369 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2370 return copy;
2371
2372 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2373 }
2374
ecdbca40
LP		 2375 if (s->main_exec_status.pid > 0) {
2376 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
799fd0fd
LP		 2377 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2378 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
ecdbca40 2379
799fd0fd 2380 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
ecdbca40
LP		 2381 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2382 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2383 }
2384 }
2385
a16e1123
LP		 2386 return 0;
2387}
2388
2389static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2390 Service *s = SERVICE(u);
a16e1123
LP		 2391
2392 assert(u);
2393 assert(key);
2394 assert(value);
2395 assert(fds);
2396
2397 if (streq(key, "state")) {
2398 ServiceState state;
2399
2400 if ((state = service_state_from_string(value)) < 0)
2401 log_debug("Failed to parse state value %s", value);
2402 else
2403 s->deserialized_state = state;
2404 } else if (streq(key, "failure")) {
2405 int b;
2406
2407 if ((b = parse_boolean(value)) < 0)
2408 log_debug("Failed to parse failure value %s", value);
2409 else
2410 s->failure = b || s->failure;
2411 } else if (streq(key, "control-pid")) {
5925dd3c 2412 pid_t pid;
a16e1123 2413
e364ad06 2414 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2415 log_debug("Failed to parse control-pid value %s", value);
2416 else
e55224ca 2417 s->control_pid = pid;
a16e1123 2418 } else if (streq(key, "main-pid")) {
5925dd3c 2419 pid_t pid;
a16e1123 2420
e364ad06 2421 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 2422 log_debug("Failed to parse main-pid value %s", value);
2423 else
5925dd3c 2424 service_set_main_pid(s, (pid_t) pid);
a16e1123
LP		 2425 } else if (streq(key, "main-pid-known")) {
2426 int b;
2427
2428 if ((b = parse_boolean(value)) < 0)
2429 log_debug("Failed to parse main-pid-known value %s", value);
2430 else
2431 s->main_pid_known = b;
3a2776bc
LP		 2432 } else if (streq(key, "status-text")) {
2433 char *t;
2434
2435 if ((t = strdup(value))) {
2436 free(s->status_text);
2437 s->status_text = t;
2438 }
2439
a16e1123
LP		 2440 } else if (streq(key, "control-command")) {
2441 ServiceExecCommand id;
2442
2443 if ((id = service_exec_command_from_string(value)) < 0)
2444 log_debug("Failed to parse exec-command value %s", value);
2445 else {
2446 s->control_command_id = id;
2447 s->control_command = s->exec_command[id];
2448 }
2449 } else if (streq(key, "socket-fd")) {
2450 int fd;
2451
2452 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2453 log_debug("Failed to parse socket-fd value %s", value);
2454 else {
2455
2456 if (s->socket_fd >= 0)
2457 close_nointr_nofail(s->socket_fd);
2458 s->socket_fd = fdset_remove(fds, fd);
2459 }
ecdbca40
LP		 2460 } else if (streq(key, "main-exec-status-pid")) {
2461 pid_t pid;
2462
e364ad06 2463 if (parse_pid(value, &pid) < 0)
ecdbca40
LP		 2464 log_debug("Failed to parse main-exec-status-pid value %s", value);
2465 else
2466 s->main_exec_status.pid = pid;
2467 } else if (streq(key, "main-exec-status-code")) {
2468 int i;
2469
e364ad06 2470 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2471 log_debug("Failed to parse main-exec-status-code value %s", value);
2472 else
2473 s->main_exec_status.code = i;
2474 } else if (streq(key, "main-exec-status-status")) {
2475 int i;
2476
e364ad06 2477 if (safe_atoi(value, &i) < 0)
ecdbca40
LP		 2478 log_debug("Failed to parse main-exec-status-status value %s", value);
2479 else
2480 s->main_exec_status.status = i;
799fd0fd
LP		 2481 } else if (streq(key, "main-exec-status-start"))
2482 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2483 else if (streq(key, "main-exec-status-exit"))
2484 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2485 else
a16e1123
LP		 2486 log_debug("Unknown serialization key '%s'", key);
2487
2488 return 0;
2489}
2490
87f0e418
LP		 2491static UnitActiveState service_active_state(Unit *u) {
2492 assert(u);
5cb5a6ff 2493
acbb0225 2494 return state_translation_table[SERVICE(u)->state];
034c6ed7
LP		 2495}
2496
10a94420
LP		 2497static const char *service_sub_state_to_string(Unit *u) {
2498 assert(u);
2499
2500 return service_state_to_string(SERVICE(u)->state);
2501}
2502
701cc384
LP		 2503static bool service_check_gc(Unit *u) {
2504 Service *s = SERVICE(u);
2505
2506 assert(s);
2507
6d55002a
LP		 2508 /* Never clean up services that still have a process around,
2509 * even if the service is formally dead. */
2510 if (cgroup_good(s) > 0 ||
2511 main_pid_good(s) > 0 ||
2512 control_pid_good(s) > 0)
2513 return true;
2514
2515#ifdef HAVE_SYSV_COMPAT
2516 if (s->sysv_path)
2517 return true;
07459bb6 2518#endif
701cc384 2519
6d55002a
LP		 2520 return false;
2521}
2522
701cc384
LP		 2523static bool service_check_snapshot(Unit *u) {
2524 Service *s = SERVICE(u);
2525
2526 assert(s);
2527
2528 return !s->got_socket_fd;
2529}
2530
87f0e418
LP		 2531static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2532 Service *s = SERVICE(u);
034c6ed7 2533 bool success;
5cb5a6ff
LP		 2534
2535 assert(s);
034c6ed7
LP		 2536 assert(pid >= 0);
2537
f21781d5 2538 if (!s->meta.fragment_path)
d06dacd0
LP		 2539 success = is_clean_exit_lsb(code, status);
2540 else
2541 success = is_clean_exit(code, status);
034c6ed7
LP		 2542
2543 if (s->main_pid == pid) {
2544
034c6ed7 2545 s->main_pid = 0;
169c1bda 2546 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
034c6ed7 2547
867b3b7d
LP		 2548 /* If this is not a forking service than the main
2549 * process got started and hence we copy the exit
2550 * status so that it is recorded both as main and as
2551 * control process exit status */
2552 if (s->main_command) {
2553 s->main_command->exec_status = s->main_exec_status;
b708e7ce 2554
867b3b7d 2555 if (s->main_command->ignore)
b708e7ce 2556 success = true;
034c6ed7
LP		 2557 }
2558
92abbefb
LP		 2559 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2560 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2561 s->failure = s->failure || !success;
034c6ed7 2562
867b3b7d
LP		 2563 if (s->main_command &&
2564 s->main_command->command_next &&
34e9ba66 2565 success) {
034c6ed7 2566
34e9ba66
LP		 2567 /* There is another command to *
2568 * execute, so let's do that. */
034c6ed7 2569
34e9ba66
LP		 2570 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2571 service_run_next_main(s, success);
034c6ed7 2572
34e9ba66
LP		 2573 } else {
2574
2575 /* The service exited, so the service is officially
2576 * gone. */
867b3b7d 2577 s->main_command = NULL;
34e9ba66
LP		 2578
2579 switch (s->state) {
2580
2581 case SERVICE_START_POST:
2582 case SERVICE_RELOAD:
2583 case SERVICE_STOP:
2584 /* Need to wait until the operation is
2585 * done */
c4653a4d 2586 break;
7d55e835 2587
34e9ba66
LP		 2588 case SERVICE_START:
2589 if (s->type == SERVICE_ONESHOT) {
2590 /* This was our main goal, so let's go on */
2591 if (success)
2592 service_enter_start_post(s);
2593 else
2594 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2595 break;
2596 } else {
2597 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
7d55e835 2598
34e9ba66
LP		 2599 /* Fall through */
2600 }
034c6ed7 2601
34e9ba66
LP		 2602 case SERVICE_RUNNING:
2603 service_enter_running(s, success);
2604 break;
034c6ed7 2605
34e9ba66
LP		 2606 case SERVICE_STOP_SIGTERM:
2607 case SERVICE_STOP_SIGKILL:
5cb5a6ff 2608
34e9ba66
LP		 2609 if (!control_pid_good(s))
2610 service_enter_stop_post(s, success);
5cb5a6ff 2611
34e9ba66
LP		 2612 /* If there is still a control process, wait for that first */
2613 break;
2614
2615 default:
2616 assert_not_reached("Uh, main process died at wrong time.");
2617 }
034c6ed7 2618 }
5cb5a6ff 2619
034c6ed7 2620 } else if (s->control_pid == pid) {
034c6ed7 2621
34e9ba66
LP		 2622 s->control_pid = 0;
2623
b708e7ce 2624 if (s->control_command) {
169c1bda 2625 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 2626
b708e7ce
LP		 2627 if (s->control_command->ignore)
2628 success = true;
2629 }
2630
34e9ba66 2631 log_full(success ? LOG_DEBUG : LOG_NOTICE,
92abbefb 2632 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 2633 s->failure = s->failure || !success;
034c6ed7 2634
34e9ba66
LP		 2635 if (s->control_command &&
2636 s->control_command->command_next &&
2637 success) {
034c6ed7
LP		 2638
2639 /* There is another command to *
2640 * execute, so let's do that. */
2641
34e9ba66
LP		 2642 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2643 service_run_next_control(s, success);
034c6ed7 2644
80876c20 2645 } else {
034c6ed7
LP		 2646 /* No further commands for this step, so let's
2647 * figure out what to do next */
2648
a16e1123
LP		 2649 s->control_command = NULL;
2650 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2651
9e2f7c11 2652 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
bd982a8b 2653
034c6ed7
LP		 2654 switch (s->state) {
2655
2656 case SERVICE_START_PRE:
2657 if (success)
2658 service_enter_start(s);
2659 else
80876c20 2660 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2661 break;
2662
2663 case SERVICE_START:
2664 assert(s->type == SERVICE_FORKING);
2665
2666 /* Let's try to load the pid
2667 * file here if we can. We
2668 * ignore the return value,
2669 * since the PID file might
2670 * actually be created by a
2671 * START_POST script */
2672
2673 if (success) {
4fbf50b3
LP		 2674 service_load_pid_file(s);
2675 service_search_main_pid(s);
034c6ed7
LP		 2676
2677 service_enter_start_post(s);
2678 } else
80876c20 2679 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
034c6ed7
LP		 2680
2681 break;
2682
2683 case SERVICE_START_POST:
2684 if (success && s->pid_file && !s->main_pid_known) {
2685 int r;
2686
2687 /* Hmm, let's see if we can
2688 * load the pid now after the
2689 * start-post scripts got
2690 * executed. */
2691
2692 if ((r = service_load_pid_file(s)) < 0)
4cd1fbcc 2693 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
034c6ed7
LP		 2694 }
2695
3185a36b
LP		 2696 s->reload_failure = !success;
2697 service_enter_running(s, true);
2698 break;
034c6ed7
LP		 2699
2700 case SERVICE_RELOAD:
3185a36b
LP		 2701 if (success) {
2702 service_load_pid_file(s);
2703 service_search_main_pid(s);
2704 }
2705
e2f3b44c
LP		 2706 s->reload_failure = !success;
2707 service_enter_running(s, true);
034c6ed7
LP		 2708 break;
2709
2710 case SERVICE_STOP:
80876c20 2711 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
034c6ed7
LP		 2712 break;
2713
2714 case SERVICE_STOP_SIGTERM:
2715 case SERVICE_STOP_SIGKILL:
2716 if (main_pid_good(s) <= 0)
2717 service_enter_stop_post(s, success);
2718
2719 /* If there is still a service
2720 * process around, wait until
2721 * that one quit, too */
2722 break;
2723
2724 case SERVICE_STOP_POST:
2725 case SERVICE_FINAL_SIGTERM:
2726 case SERVICE_FINAL_SIGKILL:
2727 service_enter_dead(s, success, true);
2728 break;
2729
2730 default:
2731 assert_not_reached("Uh, control process died at wrong time.");
2732 }
2733 }
8c47c732 2734 }
c4e2ceae
LP		 2735
2736 /* Notify clients about changed exit status */
2737 unit_add_to_dbus_queue(u);
034c6ed7
LP		 2738}
2739
acbb0225 2740static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
87f0e418 2741 Service *s = SERVICE(u);
034c6ed7
LP		 2742
2743 assert(s);
2744 assert(elapsed == 1);
2745
acbb0225 2746 assert(w == &s->timer_watch);
034c6ed7
LP		 2747
2748 switch (s->state) {
2749
2750 case SERVICE_START_PRE:
2751 case SERVICE_START:
9e2f7c11 2752 log_warning("%s operation timed out. Terminating.", u->meta.id);
80876c20
LP		 2753 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2754 break;
2755
034c6ed7 2756 case SERVICE_START_POST:
9e2f7c11 2757 log_warning("%s operation timed out. Stopping.", u->meta.id);
034c6ed7
LP		 2758 service_enter_stop(s, false);
2759 break;
2760
e2f3b44c
LP		 2761 case SERVICE_RELOAD:
2762 log_warning("%s operation timed out. Stopping.", u->meta.id);
2763 s->reload_failure = true;
2764 service_enter_running(s, true);
2765 break;
2766
034c6ed7 2767 case SERVICE_STOP:
9e2f7c11 2768 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 2769 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2770 break;
2771
2772 case SERVICE_STOP_SIGTERM:
ba035df2
LP		 2773 if (s->exec_context.send_sigkill) {
2774 log_warning("%s stopping timed out. Killing.", u->meta.id);
2775 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2776 } else {
2777 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2778 service_enter_stop_post(s, false);
2779 }
2780
034c6ed7
LP		 2781 break;
2782
2783 case SERVICE_STOP_SIGKILL:
35b8ca3a 2784 /* Uh, we sent a SIGKILL and it is still not gone?
034c6ed7
LP		 2785 * Must be something we cannot kill, so let's just be
2786 * weirded out and continue */
2787
9e2f7c11 2788 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 2789 service_enter_stop_post(s, false);
2790 break;
2791
2792 case SERVICE_STOP_POST:
9e2f7c11 2793 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
034c6ed7
LP		 2794 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2795 break;
2796
2797 case SERVICE_FINAL_SIGTERM:
ba035df2
LP		 2798 if (s->exec_context.send_sigkill) {
2799 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2800 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2801 } else {
2802 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2803 service_enter_dead(s, false, true);
2804 }
2805
034c6ed7
LP		 2806 break;
2807
2808 case SERVICE_FINAL_SIGKILL:
fdf20a31 2809 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 2810 service_enter_dead(s, false, true);
2811 break;
2812
2813 case SERVICE_AUTO_RESTART:
54165a39 2814 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
034c6ed7
LP		 2815 service_enter_restart(s);
2816 break;
2817
2818 default:
2819 assert_not_reached("Timeout at wrong time.");
2820 }
5cb5a6ff
LP		 2821}
2822
8e274523
LP		 2823static void service_cgroup_notify_event(Unit *u) {
2824 Service *s = SERVICE(u);
2825
2826 assert(u);
2827
9e2f7c11 2828 log_debug("%s: cgroup is empty", u->meta.id);
8e274523
LP		 2829
2830 switch (s->state) {
2831
2832 /* Waiting for SIGCHLD is usually more interesting,
2833 * because it includes return codes/signals. Which is
2834 * why we ignore the cgroup events for most cases,
2835 * except when we don't know pid which to expect the
2836 * SIGCHLD for. */
2837
2838 case SERVICE_RUNNING:
80876c20 2839 service_enter_running(s, true);
8e274523
LP		 2840 break;
2841
28708d8a
LP		 2842 case SERVICE_STOP_SIGTERM:
2843 case SERVICE_STOP_SIGKILL:
2844 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2845 service_enter_stop_post(s, true);
2846
2847 break;
2848
7f97f0fe
LP		 2849 case SERVICE_FINAL_SIGTERM:
2850 case SERVICE_FINAL_SIGKILL:
2851 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2852 service_enter_dead(s, true, true);
2853
2854 break;
2855
8e274523
LP		 2856 default:
2857 ;
2858 }
2859}
2860
c952c6ec 2861static void service_notify_message(Unit *u, pid_t pid, char **tags) {
8c47c732
LP		 2862 Service *s = SERVICE(u);
2863 const char *e;
2864
2865 assert(u);
2866
c952c6ec
LP		 2867 if (s->notify_access == NOTIFY_NONE) {
2868 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2869 u->meta.id, (unsigned long) pid);
2870 return;
2871 }
2872
2873 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2874 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2875 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2876 return;
2877 }
2878
8c47c732
LP		 2879 log_debug("%s: Got message", u->meta.id);
2880
2881 /* Interpret MAINPID= */
2882 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2883 (s->state == SERVICE_START ||
2884 s->state == SERVICE_START_POST ||
2885 s->state == SERVICE_RUNNING ||
2886 s->state == SERVICE_RELOAD)) {
8c47c732 2887
5925dd3c 2888 if (parse_pid(e + 8, &pid) < 0)
92abbefb 2889 log_warning("Failed to parse notification message %s", e);
8c47c732
LP		 2890 else {
2891 log_debug("%s: got %s", u->meta.id, e);
5925dd3c 2892 service_set_main_pid(s, pid);
8c47c732
LP		 2893 }
2894 }
2895
2896 /* Interpret READY= */
2897 if (s->type == SERVICE_NOTIFY &&
2898 s->state == SERVICE_START &&
2899 strv_find(tags, "READY=1")) {
2900 log_debug("%s: got READY=1", u->meta.id);
2901
2902 service_enter_start_post(s);
2903 }
2904
2905 /* Interpret STATUS= */
2906 if ((e = strv_find_prefix(tags, "STATUS="))) {
2907 char *t;
2908
3a2776bc
LP		 2909 if (e[7]) {
2910 if (!(t = strdup(e+7))) {
2911 log_error("Failed to allocate string.");
2912 return;
2913 }
2914
2915 log_debug("%s: got %s", u->meta.id, e);
8c47c732 2916
3a2776bc
LP		 2917 free(s->status_text);
2918 s->status_text = t;
2919 } else {
2920 free(s->status_text);
2921 s->status_text = NULL;
2922 }
8c47c732 2923
8c47c732 2924 }
c4e2ceae
LP		 2925
2926 /* Notify clients about changed status or main pid */
2927 unit_add_to_dbus_queue(u);
8c47c732
LP		 2928}
2929
07459bb6 2930#ifdef HAVE_SYSV_COMPAT
2c4104f0 2931static int service_enumerate(Manager *m) {
2c4104f0
LP		 2932 char **p;
2933 unsigned i;
2934 DIR *d = NULL;
2935 char *path = NULL, *fpath = NULL, *name = NULL;
c68364b7
LP		 2936 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2937 Unit *service;
2938 Iterator j;
2c4104f0
LP		 2939 int r;
2940
2941 assert(m);
2942
c68364b7
LP		 2943 zero(runlevel_services);
2944
84e3543e 2945 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
09cd1ab1 2946 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2c4104f0
LP		 2947 struct dirent *de;
2948
2949 free(path);
2950 path = NULL;
09cd1ab1 2951 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2c4104f0
LP		 2952 r = -ENOMEM;
2953 goto finish;
2954 }
2955
2956 if (d)
2957 closedir(d);
2958
2959 if (!(d = opendir(path))) {
2960 if (errno != ENOENT)
2961 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2962
2963 continue;
2964 }
2965
2966 while ((de = readdir(d))) {
db06e3b6 2967 int a, b;
2c4104f0
LP		 2968
2969 if (ignore_file(de->d_name))
2970 continue;
2971
2972 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2973 continue;
2974
2975 if (strlen(de->d_name) < 4)
2976 continue;
2977
db06e3b6
LP		 2978 a = undecchar(de->d_name[1]);
2979 b = undecchar(de->d_name[2]);
2980
2981 if (a < 0 || b < 0)
2982 continue;
2983
2c4104f0
LP		 2984 free(fpath);
2985 fpath = NULL;
09cd1ab1 2986 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2c4104f0
LP		 2987 r = -ENOMEM;
2988 goto finish;
2989 }
2990
2991 if (access(fpath, X_OK) < 0) {
2992
2993 if (errno != ENOENT)
2994 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2995
2996 continue;
2997 }
2998
2999 free(name);
b7ccee3c 3000 if (!(name = sysv_translate_name(de->d_name + 3))) {
2c4104f0
LP		 3001 r = -ENOMEM;
3002 goto finish;
3003 }
3004
398ef8ba 3005 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
fbe9f3a9
LP		 3006 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3007 continue;
3008 }
2c4104f0 3009
c68364b7
LP		 3010 if (de->d_name[0] == 'S') {
3011
f73d93a4
LP		 3012 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3013 SERVICE(service)->sysv_start_priority =
3014 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
db06e3b6 3015
c68364b7 3016 SERVICE(service)->sysv_enabled = true;
f73d93a4 3017 }
db06e3b6 3018
c68364b7
LP		 3019 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3020 goto finish;
2c4104f0 3021
c68364b7 3022 if ((r = set_put(runlevel_services[i], service)) < 0)
2c4104f0 3023 goto finish;
23a177ef 3024
fc5df99e
LP		 3025 } else if (de->d_name[0] == 'K' &&
3026 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3027 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
6542952f 3028
c68364b7
LP		 3029 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3030 goto finish;
3031
3032 if ((r = set_put(shutdown_services, service)) < 0)
2c4104f0
LP		 3033 goto finish;
3034 }
3035 }
3036 }
3037
c68364b7
LP		 3038 /* Now we loaded all stubs and are aware of the lowest
3039 start-up priority for all services, not let's actually load
3040 the services, this will also tell us which services are
3041 actually native now */
3042 manager_dispatch_load_queue(m);
3043
3044 /* If this is a native service, rely on native ways to pull in
3045 * a service, don't pull it in via sysv rcN.d links. */
3046 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3047 SET_FOREACH(service, runlevel_services[i], j) {
3048 service = unit_follow_merge(service);
3049
3050 if (service->meta.fragment_path)
3051 continue;
3052
3053 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3054 goto finish;
3055 }
3056
3057 /* We honour K links only for halt/reboot. For the normal
3058 * runlevels we assume the stop jobs will be implicitly added
35b8ca3a 3059 * by the core logic. Also, we don't really distinguish here
c68364b7
LP		 3060 * between the runlevels 0 and 6 and just add them to the
3061 * special shutdown target. On SUSE the boot.d/ runlevel is
3062 * also used for shutdown, so we add links for that too to the
3063 * shutdown target.*/
3064 SET_FOREACH(service, shutdown_services, j) {
3065 service = unit_follow_merge(service);
3066
3067 if (service->meta.fragment_path)
3068 continue;
3069
ead8e478 3070 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
c68364b7
LP		 3071 goto finish;
3072 }
3073
2c4104f0
LP		 3074 r = 0;
3075
3076finish:
3077 free(path);
3078 free(fpath);
3079 free(name);
fbe9f3a9 3080
c68364b7
LP		 3081 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3082 set_free(runlevel_services[i]);
3083 set_free(shutdown_services);
3084
fbe9f3a9
LP		 3085 if (d)
3086 closedir(d);
2c4104f0
LP		 3087
3088 return r;
3089}
07459bb6 3090#endif
2c4104f0 3091
05e343b7
LP		 3092static void service_bus_name_owner_change(
3093 Unit *u,
3094 const char *name,
3095 const char *old_owner,
3096 const char *new_owner) {
3097
3098 Service *s = SERVICE(u);
3099
3100 assert(s);
3101 assert(name);
3102
3103 assert(streq(s->bus_name, name));
3104 assert(old_owner || new_owner);
3105
3106 if (old_owner && new_owner)
3107 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3108 else if (old_owner)
3109 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3110 else
3111 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3112
3113 s->bus_name_good = !!new_owner;
3114
3115 if (s->type == SERVICE_DBUS) {
3116
3117 /* service_enter_running() will figure out what to
3118 * do */
3119 if (s->state == SERVICE_RUNNING)
3120 service_enter_running(s, true);
3121 else if (s->state == SERVICE_START && new_owner)
3122 service_enter_start_post(s);
3123
3124 } else if (new_owner &&
3125 s->main_pid <= 0 &&
3126 (s->state == SERVICE_START ||
3127 s->state == SERVICE_START_POST ||
3128 s->state == SERVICE_RUNNING ||
3129 s->state == SERVICE_RELOAD)) {
3130
3131 /* Try to acquire PID from bus service */
3132 log_debug("Trying to acquire PID from D-Bus name...");
3133
3134 bus_query_pid(u->meta.manager, name);
3135 }
3136}
3137
3138static void service_bus_query_pid_done(
3139 Unit *u,
3140 const char *name,
3141 pid_t pid) {
3142
3143 Service *s = SERVICE(u);
3144
3145 assert(s);
3146 assert(name);
3147
3148 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3149
3150 if (s->main_pid <= 0 &&
3151 (s->state == SERVICE_START ||
3152 s->state == SERVICE_START_POST ||
3153 s->state == SERVICE_RUNNING ||
3154 s->state == SERVICE_RELOAD))
5925dd3c 3155 service_set_main_pid(s, pid);
05e343b7
LP		 3156}
3157
6cf6bbc2 3158int service_set_socket_fd(Service *s, int fd, Socket *sock) {
4f2d528d
LP		 3159 assert(s);
3160 assert(fd >= 0);
3161
3162 /* This is called by the socket code when instantiating a new
3163 * service for a stream socket and the socket needs to be
3164 * configured. */
3165
4cd1fbcc 3166 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 3167 return -EINVAL;
3168
3169 if (s->socket_fd >= 0)
3170 return -EBUSY;
3171
3172 if (s->state != SERVICE_DEAD)
3173 return -EAGAIN;
3174
3175 s->socket_fd = fd;
701cc384 3176 s->got_socket_fd = true;
f976f3f6 3177 s->accept_socket = sock;
6cf6bbc2 3178
4f2d528d
LP		 3179 return 0;
3180}
3181
fdf20a31 3182static void service_reset_failed(Unit *u) {
5632e374
LP		 3183 Service *s = SERVICE(u);
3184
3185 assert(s);
3186
fdf20a31 3187 if (s->state == SERVICE_FAILED)
5632e374
LP		 3188 service_set_state(s, SERVICE_DEAD);
3189
3190 s->failure = false;
3191}
3192
8a0867d6
LP		 3193static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3194 Service *s = SERVICE(u);
3195 int r = 0;
3196 Set *pid_set = NULL;
3197
3198 assert(s);
3199
3200 if (s->main_pid <= 0 && who == KILL_MAIN) {
3201 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3202 return -EINVAL;
3203 }
3204
3205 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3206 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3207 return -ENOENT;
3208 }
3209
3210 if (s->control_pid > 0)
3211 if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
3212 r = -errno;
3213
3214 if (s->main_pid > 0)
3215 if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0)
3216 r = -errno;
3217
3218 if (mode == KILL_CONTROL_GROUP) {
3219 int q;
3220
3221 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3222 return -ENOMEM;
3223
3224 /* Exclude the control/main pid from being killed via the cgroup */
3225 if (s->control_pid > 0)
3226 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3227 r = q;
3228 goto finish;
3229 }
3230
3231 if (s->main_pid > 0)
3232 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3233 r = q;
3234 goto finish;
3235 }
3236
430c18ed 3237 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
8a0867d6
LP		 3238 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3239 r = q;
3240 }
3241
3242finish:
3243 if (pid_set)
3244 set_free(pid_set);
3245
3246 return r;
3247}
3248
94f04347
LP		 3249static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3250 [SERVICE_DEAD] = "dead",
3251 [SERVICE_START_PRE] = "start-pre",
3252 [SERVICE_START] = "start",
3253 [SERVICE_START_POST] = "start-post",
3254 [SERVICE_RUNNING] = "running",
80876c20 3255 [SERVICE_EXITED] = "exited",
94f04347
LP		 3256 [SERVICE_RELOAD] = "reload",
3257 [SERVICE_STOP] = "stop",
3258 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3259 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3260 [SERVICE_STOP_POST] = "stop-post",
3261 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3262 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 3263 [SERVICE_FAILED] = "failed",
94f04347
LP		 3264 [SERVICE_AUTO_RESTART] = "auto-restart",
3265};
3266
3267DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3268
3269static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
525ee6f4
LP		 3270 [SERVICE_RESTART_NO] = "no",
3271 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
50caaedb
LP		 3272 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3273 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3274 [SERVICE_RESTART_ALWAYS] = "always"
94f04347
LP		 3275};
3276
3277DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3278
3279static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
94f04347 3280 [SERVICE_SIMPLE] = "simple",
0d624a78 3281 [SERVICE_FORKING] = "forking",
34e9ba66 3282 [SERVICE_ONESHOT] = "oneshot",
8c47c732
LP		 3283 [SERVICE_DBUS] = "dbus",
3284 [SERVICE_NOTIFY] = "notify"
94f04347
LP		 3285};
3286
3287DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3288
e537352b 3289static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
94f04347
LP		 3290 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3291 [SERVICE_EXEC_START] = "ExecStart",
3292 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3293 [SERVICE_EXEC_RELOAD] = "ExecReload",
3294 [SERVICE_EXEC_STOP] = "ExecStop",
3295 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3296};
3297
3298DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3299
c952c6ec
LP		 3300static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3301 [NOTIFY_NONE] = "none",
3302 [NOTIFY_MAIN] = "main",
3303 [NOTIFY_ALL] = "all"
3304};
3305
3306DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3307
87f0e418 3308const UnitVTable service_vtable = {
5cb5a6ff 3309 .suffix = ".service",
9e58ff9c 3310 .show_status = true,
5cb5a6ff 3311
034c6ed7
LP		 3312 .init = service_init,
3313 .done = service_done,
a16e1123
LP		 3314 .load = service_load,
3315
3316 .coldplug = service_coldplug,
034c6ed7 3317
5cb5a6ff
LP		 3318 .dump = service_dump,
3319
3320 .start = service_start,
3321 .stop = service_stop,
3322 .reload = service_reload,
3323
034c6ed7
LP		 3324 .can_reload = service_can_reload,
3325
8a0867d6
LP		 3326 .kill = service_kill,
3327
a16e1123
LP		 3328 .serialize = service_serialize,
3329 .deserialize_item = service_deserialize_item,
3330
5cb5a6ff 3331 .active_state = service_active_state,
10a94420 3332 .sub_state_to_string = service_sub_state_to_string,
5cb5a6ff 3333
701cc384
LP		 3334 .check_gc = service_check_gc,
3335 .check_snapshot = service_check_snapshot,
3336
034c6ed7
LP		 3337 .sigchld_event = service_sigchld_event,
3338 .timer_event = service_timer_event,
2c4104f0 3339
fdf20a31 3340 .reset_failed = service_reset_failed,
5632e374 3341
8e274523 3342 .cgroup_notify_empty = service_cgroup_notify_event,
8c47c732 3343 .notify_message = service_notify_message,
8e274523 3344
05e343b7
LP		 3345 .bus_name_owner_change = service_bus_name_owner_change,
3346 .bus_query_pid_done = service_bus_query_pid_done,
3347
c4e2ceae 3348 .bus_interface = "org.freedesktop.systemd1.Service",
4139c1b2 3349 .bus_message_handler = bus_service_message_handler,
c4e2ceae 3350 .bus_invalidating_properties = bus_service_invalidating_properties,
4139c1b2 3351
07459bb6 3352#ifdef HAVE_SYSV_COMPAT
2c4104f0 3353 .enumerate = service_enumerate
07459bb6 3354#endif
5cb5a6ff 3355};
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