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