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Commit | Line | Data |
---|---|---|
5cb5a6ff LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
5cb5a6ff | 22 | #include <errno.h> |
034c6ed7 | 23 | #include <signal.h> |
2c4104f0 LP |
24 | #include <dirent.h> |
25 | #include <unistd.h> | |
5cb5a6ff | 26 | |
87f0e418 | 27 | #include "unit.h" |
5cb5a6ff LP |
28 | #include "service.h" |
29 | #include "load-fragment.h" | |
30 | #include "load-dropin.h" | |
034c6ed7 | 31 | #include "log.h" |
2c4104f0 | 32 | #include "strv.h" |
9e2f7c11 | 33 | #include "unit-name.h" |
4139c1b2 | 34 | #include "dbus-service.h" |
2c4104f0 LP |
35 | |
36 | #define COMMENTS "#;\n" | |
37 | #define NEWLINES "\n\r" | |
38 | #define LINE_MAX 4096 | |
034c6ed7 | 39 | |
09cd1ab1 LP |
40 | typedef enum RunlevelType { |
41 | RUNLEVEL_UP, | |
42 | RUNLEVEL_DOWN, | |
43 | RUNLEVEL_BASIC | |
44 | } RunlevelType; | |
45 | ||
46 | static const struct { | |
47 | const char *path; | |
48 | const char *target; | |
49 | const RunlevelType type; | |
50 | } rcnd_table[] = { | |
fbe9f3a9 LP |
51 | /* Standard SysV runlevels */ |
52 | { "rc0.d", SPECIAL_RUNLEVEL0_TARGET, RUNLEVEL_DOWN }, | |
53 | { "rc1.d", SPECIAL_RUNLEVEL1_TARGET, RUNLEVEL_UP }, | |
54 | { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP }, | |
55 | { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP }, | |
56 | { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, | |
57 | { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, | |
58 | { "rc6.d", SPECIAL_RUNLEVEL6_TARGET, RUNLEVEL_DOWN }, | |
59 | ||
cfe243e3 | 60 | /* SUSE style boot.d */ |
fbe9f3a9 LP |
61 | { "boot.d", SPECIAL_BASIC_TARGET, RUNLEVEL_BASIC }, |
62 | ||
63 | /* Debian style rcS.d */ | |
64 | { "rcS.d", SPECIAL_BASIC_TARGET, RUNLEVEL_BASIC }, | |
23a177ef LP |
65 | }; |
66 | ||
09cd1ab1 | 67 | #define RUNLEVELS_UP "12345" |
fbe9f3a9 LP |
68 | /* #define RUNLEVELS_DOWN "06" */ |
69 | /* #define RUNLEVELS_BOOT "bBsS" */ | |
09cd1ab1 | 70 | |
acbb0225 | 71 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
72 | [SERVICE_DEAD] = UNIT_INACTIVE, |
73 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
74 | [SERVICE_START] = UNIT_ACTIVATING, | |
75 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
76 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 77 | [SERVICE_EXITED] = UNIT_ACTIVE, |
87f0e418 LP |
78 | [SERVICE_RELOAD] = UNIT_ACTIVE_RELOADING, |
79 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
80 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
81 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
82 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
83 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
84 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
85 | [SERVICE_MAINTAINANCE] = UNIT_INACTIVE, | |
86 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, | |
034c6ed7 | 87 | }; |
5cb5a6ff | 88 | |
a16e1123 LP |
89 | static void service_init(Unit *u) { |
90 | Service *s = SERVICE(u); | |
91 | ||
92 | assert(u); | |
93 | assert(u->meta.load_state == UNIT_STUB); | |
94 | ||
95 | s->timeout_usec = DEFAULT_TIMEOUT_USEC; | |
96 | s->restart_usec = DEFAULT_RESTART_USEC; | |
97 | s->timer_watch.type = WATCH_INVALID; | |
98 | s->sysv_start_priority = -1; | |
99 | s->socket_fd = -1; | |
100 | ||
101 | exec_context_init(&s->exec_context); | |
102 | ||
103 | RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5); | |
104 | ||
105 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
106 | } | |
107 | ||
5e94833f LP |
108 | static void service_unwatch_control_pid(Service *s) { |
109 | assert(s); | |
110 | ||
111 | if (s->control_pid <= 0) | |
112 | return; | |
113 | ||
114 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
115 | s->control_pid = 0; | |
116 | } | |
117 | ||
118 | static void service_unwatch_main_pid(Service *s) { | |
119 | assert(s); | |
120 | ||
121 | if (s->main_pid <= 0) | |
122 | return; | |
123 | ||
124 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
125 | s->main_pid = 0; | |
126 | } | |
127 | ||
4f2d528d LP |
128 | static void service_close_socket_fd(Service *s) { |
129 | assert(s); | |
130 | ||
131 | if (s->socket_fd < 0) | |
132 | return; | |
133 | ||
134 | close_nointr_nofail(s->socket_fd); | |
135 | s->socket_fd = -1; | |
136 | } | |
137 | ||
87f0e418 LP |
138 | static void service_done(Unit *u) { |
139 | Service *s = SERVICE(u); | |
44d8db9e LP |
140 | |
141 | assert(s); | |
142 | ||
143 | free(s->pid_file); | |
144 | s->pid_file = NULL; | |
145 | ||
2c4104f0 LP |
146 | free(s->sysv_path); |
147 | s->sysv_path = NULL; | |
148 | ||
8309400a LP |
149 | free(s->sysv_runlevels); |
150 | s->sysv_runlevels = NULL; | |
151 | ||
44d8db9e | 152 | exec_context_done(&s->exec_context); |
e537352b | 153 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e LP |
154 | s->control_command = NULL; |
155 | ||
156 | /* This will leak a process, but at least no memory or any of | |
157 | * our resources */ | |
5e94833f LP |
158 | service_unwatch_main_pid(s); |
159 | service_unwatch_control_pid(s); | |
44d8db9e | 160 | |
05e343b7 LP |
161 | if (s->bus_name) { |
162 | unit_unwatch_bus_name(UNIT(u), s->bus_name); | |
163 | free(s->bus_name); | |
164 | s->bus_name = NULL; | |
165 | } | |
166 | ||
4f2d528d LP |
167 | service_close_socket_fd(s); |
168 | ||
acbb0225 | 169 | unit_unwatch_timer(u, &s->timer_watch); |
44d8db9e LP |
170 | } |
171 | ||
b7ccee3c LP |
172 | static char *sysv_translate_name(const char *name) { |
173 | char *r; | |
174 | ||
175 | if (!(r = new(char, strlen(name) + sizeof(".service")))) | |
176 | return NULL; | |
177 | ||
178 | if (startswith(name, "boot.")) | |
179 | /* Drop SuSE-style boot. prefix */ | |
180 | strcpy(stpcpy(r, name + 5), ".service"); | |
181 | else if (endswith(name, ".sh")) | |
182 | /* Drop Debian-style .sh suffix */ | |
183 | strcpy(stpcpy(r, name) - 3, ".service"); | |
184 | else | |
185 | /* Normal init scripts */ | |
186 | strcpy(stpcpy(r, name), ".service"); | |
187 | ||
188 | return r; | |
189 | } | |
190 | ||
191 | static int sysv_translate_facility(const char *name, char **_r) { | |
2c4104f0 LP |
192 | |
193 | static const char * const table[] = { | |
6464aa08 | 194 | /* LSB defined facilities */ |
2c4104f0 LP |
195 | "$local_fs", SPECIAL_LOCAL_FS_TARGET, |
196 | "$network", SPECIAL_NETWORK_TARGET, | |
197 | "$named", SPECIAL_NSS_LOOKUP_TARGET, | |
198 | "$portmap", SPECIAL_RPCBIND_TARGET, | |
199 | "$remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
200 | "$syslog", SPECIAL_SYSLOG_TARGET, | |
6464aa08 LP |
201 | "$time", SPECIAL_RTC_SET_TARGET, |
202 | ||
203 | /* Debian extensions */ | |
204 | "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, | |
205 | "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, | |
1e287fe3 | 206 | "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE |
2c4104f0 LP |
207 | }; |
208 | ||
209 | unsigned i; | |
210 | char *r; | |
211 | ||
212 | for (i = 0; i < ELEMENTSOF(table); i += 2) | |
213 | if (streq(table[i], name)) { | |
214 | if (!(r = strdup(table[i+1]))) | |
215 | return -ENOMEM; | |
216 | ||
217 | goto finish; | |
218 | } | |
219 | ||
220 | if (*name == '$') | |
221 | return 0; | |
222 | ||
b7ccee3c | 223 | if (!(r = sysv_translate_name(name))) |
2c4104f0 LP |
224 | return -ENOMEM; |
225 | ||
226 | finish: | |
227 | ||
228 | if (_r) | |
229 | *_r = r; | |
230 | ||
231 | return 1; | |
232 | } | |
233 | ||
56d748b4 | 234 | static int sysv_fix_order(Service *s) { |
2c4104f0 LP |
235 | Meta *other; |
236 | int r; | |
237 | ||
238 | assert(s); | |
239 | ||
240 | if (s->sysv_start_priority < 0) | |
241 | return 0; | |
242 | ||
23a177ef LP |
243 | /* For each pair of services where at least one lacks a LSB |
244 | * header, we use the start priority value to order things. */ | |
2c4104f0 LP |
245 | |
246 | LIST_FOREACH(units_per_type, other, UNIT(s)->meta.manager->units_per_type[UNIT_SERVICE]) { | |
247 | Service *t; | |
248 | UnitDependency d; | |
249 | ||
250 | t = (Service*) other; | |
251 | ||
252 | if (s == t) | |
253 | continue; | |
254 | ||
255 | if (t->sysv_start_priority < 0) | |
256 | continue; | |
257 | ||
51a1a79d LP |
258 | /* If both units have modern headers we don't care |
259 | * about the priorities */ | |
260 | if ((!s->sysv_path || s->sysv_has_lsb) && | |
261 | (!t->sysv_path || t->sysv_has_lsb)) | |
23a177ef LP |
262 | continue; |
263 | ||
2c4104f0 LP |
264 | if (t->sysv_start_priority < s->sysv_start_priority) |
265 | d = UNIT_AFTER; | |
266 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
267 | d = UNIT_BEFORE; | |
268 | else | |
269 | continue; | |
270 | ||
271 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
272 | ||
701cc384 | 273 | if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
2c4104f0 LP |
274 | return r; |
275 | } | |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
281 | ExecCommand *c; | |
282 | ||
283 | if (!(c = new0(ExecCommand, 1))) | |
284 | return NULL; | |
285 | ||
286 | if (!(c->path = strdup(path))) { | |
287 | free(c); | |
288 | return NULL; | |
289 | } | |
290 | ||
291 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
292 | free(c->path); | |
293 | free(c); | |
294 | return NULL; | |
295 | } | |
296 | ||
297 | return c; | |
298 | } | |
299 | ||
300 | static int sysv_exec_commands(Service *s) { | |
301 | ExecCommand *c; | |
302 | ||
303 | assert(s); | |
304 | assert(s->sysv_path); | |
305 | ||
306 | if (!(c = exec_command_new(s->sysv_path, "start"))) | |
307 | return -ENOMEM; | |
308 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
309 | ||
310 | if (!(c = exec_command_new(s->sysv_path, "stop"))) | |
311 | return -ENOMEM; | |
312 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
313 | ||
314 | if (!(c = exec_command_new(s->sysv_path, "reload"))) | |
315 | return -ENOMEM; | |
316 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
e537352b | 321 | static int service_load_sysv_path(Service *s, const char *path) { |
2c4104f0 LP |
322 | FILE *f; |
323 | Unit *u; | |
324 | unsigned line = 0; | |
325 | int r; | |
326 | enum { | |
327 | NORMAL, | |
328 | DESCRIPTION, | |
329 | LSB, | |
330 | LSB_DESCRIPTION | |
331 | } state = NORMAL; | |
23a177ef LP |
332 | |
333 | assert(s); | |
334 | assert(path); | |
2c4104f0 LP |
335 | |
336 | u = UNIT(s); | |
337 | ||
338 | if (!(f = fopen(path, "re"))) { | |
339 | r = errno == ENOENT ? 0 : -errno; | |
340 | goto finish; | |
341 | } | |
342 | ||
343 | s->type = SERVICE_FORKING; | |
344 | s->restart = SERVICE_ONCE; | |
345 | ||
346 | free(s->sysv_path); | |
347 | if (!(s->sysv_path = strdup(path))) { | |
348 | r = -ENOMEM; | |
349 | goto finish; | |
350 | } | |
351 | ||
352 | while (!feof(f)) { | |
353 | char l[LINE_MAX], *t; | |
354 | ||
355 | if (!fgets(l, sizeof(l), f)) { | |
356 | if (feof(f)) | |
357 | break; | |
358 | ||
359 | r = -errno; | |
360 | log_error("Failed to read configuration file '%s': %s", path, strerror(-r)); | |
361 | goto finish; | |
362 | } | |
363 | ||
364 | line++; | |
365 | ||
366 | t = strstrip(l); | |
367 | if (*t != '#') | |
368 | continue; | |
369 | ||
370 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
371 | state = LSB; | |
23a177ef | 372 | s->sysv_has_lsb = true; |
2c4104f0 LP |
373 | continue; |
374 | } | |
375 | ||
376 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
377 | state = NORMAL; | |
378 | continue; | |
379 | } | |
380 | ||
381 | t++; | |
382 | t += strspn(t, WHITESPACE); | |
383 | ||
384 | if (state == NORMAL) { | |
385 | ||
386 | /* Try to parse Red Hat style chkconfig headers */ | |
387 | ||
c2b35af6 | 388 | if (startswith_no_case(t, "chkconfig:")) { |
2c4104f0 | 389 | int start_priority; |
8309400a | 390 | char runlevels[16], *k; |
2c4104f0 LP |
391 | |
392 | state = NORMAL; | |
393 | ||
8309400a LP |
394 | if (sscanf(t+10, "%15s %i %*i", |
395 | runlevels, | |
396 | &start_priority) != 2) { | |
2c4104f0 LP |
397 | |
398 | log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line); | |
399 | continue; | |
400 | } | |
401 | ||
fbe9f3a9 LP |
402 | /* A start priority gathered from the |
403 | * symlink farms is preferred over the | |
404 | * data from the LSB header. */ | |
8309400a | 405 | if (start_priority < 0 || start_priority > 99) |
2c4104f0 | 406 | log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); |
db06e3b6 | 407 | else if (s->sysv_start_priority < 0) |
8309400a LP |
408 | s->sysv_start_priority = start_priority; |
409 | ||
410 | char_array_0(runlevels); | |
411 | k = delete_chars(runlevels, WHITESPACE "-"); | |
412 | ||
413 | if (k[0]) { | |
414 | char *d; | |
415 | ||
416 | if (!(d = strdup(k))) { | |
417 | r = -ENOMEM; | |
418 | goto finish; | |
419 | } | |
420 | ||
421 | free(s->sysv_runlevels); | |
422 | s->sysv_runlevels = d; | |
2c4104f0 LP |
423 | } |
424 | ||
c2b35af6 | 425 | } else if (startswith_no_case(t, "description:")) { |
2c4104f0 LP |
426 | |
427 | size_t k = strlen(t); | |
428 | char *d; | |
429 | ||
430 | if (t[k-1] == '\\') { | |
431 | state = DESCRIPTION; | |
432 | t[k-1] = 0; | |
433 | } | |
434 | ||
435 | if (!(d = strdup(strstrip(t+12)))) { | |
436 | r = -ENOMEM; | |
437 | goto finish; | |
438 | } | |
439 | ||
440 | free(u->meta.description); | |
441 | u->meta.description = d; | |
442 | ||
c2b35af6 | 443 | } else if (startswith_no_case(t, "pidfile:")) { |
2c4104f0 LP |
444 | |
445 | char *fn; | |
446 | ||
447 | state = NORMAL; | |
448 | ||
449 | fn = strstrip(t+8); | |
450 | if (!path_is_absolute(fn)) { | |
451 | log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line); | |
452 | continue; | |
453 | } | |
454 | ||
455 | if (!(fn = strdup(fn))) { | |
456 | r = -ENOMEM; | |
457 | goto finish; | |
458 | } | |
459 | ||
460 | free(s->pid_file); | |
461 | s->pid_file = fn; | |
462 | } | |
463 | ||
464 | } else if (state == DESCRIPTION) { | |
465 | ||
466 | /* Try to parse Red Hat style description | |
467 | * continuation */ | |
468 | ||
469 | size_t k = strlen(t); | |
470 | char *d; | |
471 | ||
472 | if (t[k-1] == '\\') | |
473 | t[k-1] = 0; | |
474 | else | |
475 | state = NORMAL; | |
476 | ||
477 | assert(u->meta.description); | |
478 | if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) { | |
479 | r = -ENOMEM; | |
480 | goto finish; | |
481 | } | |
482 | ||
483 | free(u->meta.description); | |
484 | u->meta.description = d; | |
485 | ||
486 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
487 | ||
c2b35af6 | 488 | if (startswith_no_case(t, "Provides:")) { |
2c4104f0 LP |
489 | char *i, *w; |
490 | size_t z; | |
491 | ||
492 | state = LSB; | |
493 | ||
494 | FOREACH_WORD(w, z, t+9, i) { | |
495 | char *n, *m; | |
496 | ||
497 | if (!(n = strndup(w, z))) { | |
498 | r = -ENOMEM; | |
499 | goto finish; | |
500 | } | |
501 | ||
b7ccee3c | 502 | r = sysv_translate_facility(n, &m); |
2c4104f0 LP |
503 | free(n); |
504 | ||
505 | if (r < 0) | |
506 | goto finish; | |
507 | ||
508 | if (r == 0) | |
509 | continue; | |
510 | ||
bd77d0fc LP |
511 | if (unit_name_to_type(m) == UNIT_SERVICE) |
512 | r = unit_add_name(u, m); | |
513 | else { | |
701cc384 LP |
514 | if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL, true)) >= 0) |
515 | r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true); | |
bd77d0fc LP |
516 | } |
517 | ||
2c4104f0 LP |
518 | free(m); |
519 | ||
520 | if (r < 0) | |
521 | goto finish; | |
522 | } | |
523 | ||
c2b35af6 LP |
524 | } else if (startswith_no_case(t, "Required-Start:") || |
525 | startswith_no_case(t, "Should-Start:") || | |
526 | startswith_no_case(t, "X-Start-Before:") || | |
527 | startswith_no_case(t, "X-Start-After:")) { | |
2c4104f0 LP |
528 | char *i, *w; |
529 | size_t z; | |
530 | ||
531 | state = LSB; | |
532 | ||
533 | FOREACH_WORD(w, z, strchr(t, ':')+1, i) { | |
534 | char *n, *m; | |
535 | ||
536 | if (!(n = strndup(w, z))) { | |
537 | r = -ENOMEM; | |
538 | goto finish; | |
539 | } | |
540 | ||
b7ccee3c | 541 | r = sysv_translate_facility(n, &m); |
2c4104f0 LP |
542 | free(n); |
543 | ||
544 | if (r < 0) | |
545 | goto finish; | |
546 | ||
547 | if (r == 0) | |
548 | continue; | |
549 | ||
c2b35af6 | 550 | r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true); |
2c4104f0 LP |
551 | free(m); |
552 | ||
553 | if (r < 0) | |
554 | goto finish; | |
555 | } | |
c2b35af6 | 556 | } else if (startswith_no_case(t, "Default-Start:")) { |
8309400a LP |
557 | char *k, *d; |
558 | ||
559 | state = LSB; | |
560 | ||
561 | k = delete_chars(t+14, WHITESPACE "-"); | |
562 | ||
563 | if (k[0] != 0) { | |
564 | if (!(d = strdup(k))) { | |
565 | r = -ENOMEM; | |
566 | goto finish; | |
567 | } | |
568 | ||
569 | free(s->sysv_runlevels); | |
570 | s->sysv_runlevels = d; | |
571 | } | |
2c4104f0 | 572 | |
c2b35af6 | 573 | } else if (startswith_no_case(t, "Description:")) { |
2c4104f0 LP |
574 | char *d; |
575 | ||
576 | state = LSB_DESCRIPTION; | |
577 | ||
578 | if (!(d = strdup(strstrip(t+12)))) { | |
579 | r = -ENOMEM; | |
580 | goto finish; | |
581 | } | |
582 | ||
583 | free(u->meta.description); | |
584 | u->meta.description = d; | |
585 | ||
c2b35af6 | 586 | } else if (startswith_no_case(t, "Short-Description:") && |
8309400a | 587 | !u->meta.description) { |
2c4104f0 LP |
588 | char *d; |
589 | ||
590 | /* We use the short description only | |
591 | * if no long description is set. */ | |
592 | ||
593 | state = LSB; | |
594 | ||
595 | if (!(d = strdup(strstrip(t+18)))) { | |
596 | r = -ENOMEM; | |
597 | goto finish; | |
598 | } | |
599 | ||
2c4104f0 LP |
600 | u->meta.description = d; |
601 | ||
602 | } else if (state == LSB_DESCRIPTION) { | |
603 | ||
604 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
605 | char *d; | |
606 | ||
607 | assert(u->meta.description); | |
608 | if (asprintf(&d, "%s %s", u->meta.description, t) < 0) { | |
609 | r = -ENOMEM; | |
610 | goto finish; | |
611 | } | |
612 | ||
613 | free(u->meta.description); | |
614 | u->meta.description = d; | |
615 | } else | |
616 | state = LSB; | |
617 | } | |
618 | } | |
619 | } | |
620 | ||
2c4104f0 LP |
621 | if ((r = sysv_exec_commands(s)) < 0) |
622 | goto finish; | |
623 | ||
09cd1ab1 | 624 | if (!s->sysv_runlevels || chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { |
0bc824be LP |
625 | /* If there a runlevels configured for this service |
626 | * but none of the standard ones, then we assume this | |
627 | * is some special kind of service (which might be | |
628 | * needed for early boot) and don't create any links | |
629 | * to it. */ | |
630 | ||
701cc384 LP |
631 | if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 || |
632 | (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0) | |
0bc824be | 633 | goto finish; |
09cd1ab1 LP |
634 | |
635 | } else | |
636 | /* Don't timeout special services during boot (like fsck) */ | |
637 | s->timeout_usec = 0; | |
0fd030be | 638 | |
80876c20 LP |
639 | /* Special setting for all SysV services */ |
640 | s->valid_no_process = true; | |
b29a8e58 | 641 | s->kill_mode = KILL_PROCESS_GROUP; |
80876c20 | 642 | |
e537352b | 643 | u->meta.load_state = UNIT_LOADED; |
23a177ef | 644 | r = 0; |
2c4104f0 LP |
645 | |
646 | finish: | |
647 | ||
648 | if (f) | |
649 | fclose(f); | |
650 | ||
651 | return r; | |
652 | } | |
653 | ||
e537352b | 654 | static int service_load_sysv_name(Service *s, const char *name) { |
2c4104f0 LP |
655 | char **p; |
656 | ||
657 | assert(s); | |
658 | assert(name); | |
659 | ||
d017c6ca LP |
660 | /* For SysV services we strip the boot. or .sh |
661 | * prefixes/suffixes. */ | |
662 | if (startswith(name, "boot.") || | |
663 | endswith(name, ".sh.service")) | |
664 | return -ENOENT; | |
665 | ||
2c4104f0 LP |
666 | STRV_FOREACH(p, UNIT(s)->meta.manager->sysvinit_path) { |
667 | char *path; | |
668 | int r; | |
669 | ||
670 | if (asprintf(&path, "%s/%s", *p, name) < 0) | |
671 | return -ENOMEM; | |
672 | ||
673 | assert(endswith(path, ".service")); | |
674 | path[strlen(path)-8] = 0; | |
675 | ||
e537352b | 676 | r = service_load_sysv_path(s, path); |
fbe9f3a9 LP |
677 | |
678 | if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) { | |
d017c6ca | 679 | /* Try Debian style xxx.sh source'able init scripts */ |
fbe9f3a9 LP |
680 | strcat(path, ".sh"); |
681 | r = service_load_sysv_path(s, path); | |
682 | } | |
683 | ||
2c4104f0 LP |
684 | free(path); |
685 | ||
fbe9f3a9 | 686 | if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) { |
cfe243e3 | 687 | /* Try SUSE style boot.xxx init scripts */ |
fbe9f3a9 LP |
688 | |
689 | if (asprintf(&path, "%s/boot.%s", *p, name) < 0) | |
690 | return -ENOMEM; | |
691 | ||
692 | path[strlen(path)-8] = 0; | |
693 | r = service_load_sysv_path(s, path); | |
694 | free(path); | |
695 | } | |
696 | ||
23a177ef | 697 | if (r < 0) |
2c4104f0 | 698 | return r; |
23a177ef | 699 | |
e537352b | 700 | if ((UNIT(s)->meta.load_state != UNIT_STUB)) |
23a177ef | 701 | break; |
2c4104f0 LP |
702 | } |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
e537352b | 707 | static int service_load_sysv(Service *s) { |
2c4104f0 LP |
708 | const char *t; |
709 | Iterator i; | |
710 | int r; | |
711 | ||
5cb5a6ff LP |
712 | assert(s); |
713 | ||
714 | /* Load service data from SysV init scripts, preferably with | |
715 | * LSB headers ... */ | |
716 | ||
2c4104f0 LP |
717 | if (strv_isempty(UNIT(s)->meta.manager->sysvinit_path)) |
718 | return 0; | |
719 | ||
9e2f7c11 | 720 | if ((t = UNIT(s)->meta.id)) |
e537352b | 721 | if ((r = service_load_sysv_name(s, t)) < 0) |
2c4104f0 LP |
722 | return r; |
723 | ||
e537352b | 724 | if (UNIT(s)->meta.load_state == UNIT_STUB) |
23a177ef | 725 | SET_FOREACH(t, UNIT(s)->meta.names, i) { |
9e2f7c11 | 726 | if (t == UNIT(s)->meta.id) |
e537352b LP |
727 | continue; |
728 | ||
729 | if ((r == service_load_sysv_name(s, t)) < 0) | |
23a177ef LP |
730 | return r; |
731 | ||
e537352b | 732 | if (UNIT(s)->meta.load_state != UNIT_STUB) |
23a177ef LP |
733 | break; |
734 | } | |
2c4104f0 LP |
735 | |
736 | return 0; | |
5cb5a6ff LP |
737 | } |
738 | ||
05e343b7 LP |
739 | static int service_add_bus_name(Service *s) { |
740 | char *n; | |
741 | int r; | |
742 | ||
743 | assert(s); | |
744 | assert(s->bus_name); | |
745 | ||
746 | if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0) | |
747 | return 0; | |
748 | ||
749 | r = unit_merge_by_name(UNIT(s), n); | |
750 | free(n); | |
751 | ||
752 | return r; | |
753 | } | |
754 | ||
243b1432 LP |
755 | static int service_verify(Service *s) { |
756 | assert(s); | |
757 | ||
758 | if (UNIT(s)->meta.load_state != UNIT_LOADED) | |
759 | return 0; | |
760 | ||
761 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
9e2f7c11 | 762 | log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->meta.id); |
243b1432 LP |
763 | return -EINVAL; |
764 | } | |
765 | ||
05e343b7 LP |
766 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
767 | log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->meta.id); | |
768 | return -EINVAL; | |
769 | } | |
770 | ||
243b1432 LP |
771 | return 0; |
772 | } | |
773 | ||
e537352b LP |
774 | static int service_load(Unit *u) { |
775 | int r; | |
776 | Service *s = SERVICE(u); | |
777 | ||
778 | assert(s); | |
1e2e8133 | 779 | |
5cb5a6ff | 780 | /* Load a .service file */ |
e537352b | 781 | if ((r = unit_load_fragment(u)) < 0) |
5cb5a6ff LP |
782 | return r; |
783 | ||
bd77d0fc | 784 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
e537352b LP |
785 | if (u->meta.load_state == UNIT_STUB) |
786 | if ((r = service_load_sysv(s)) < 0) | |
23a177ef | 787 | return r; |
d46de8a1 | 788 | |
23a177ef | 789 | /* Still nothing found? Then let's give up */ |
e537352b | 790 | if (u->meta.load_state == UNIT_STUB) |
23a177ef | 791 | return -ENOENT; |
034c6ed7 | 792 | |
23a177ef LP |
793 | /* We were able to load something, then let's add in the |
794 | * dropin directories. */ | |
795 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) | |
8e274523 | 796 | return r; |
23a177ef LP |
797 | |
798 | /* This is a new unit? Then let's add in some extras */ | |
e537352b | 799 | if (u->meta.load_state == UNIT_LOADED) { |
23a177ef LP |
800 | if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) |
801 | return r; | |
802 | ||
803 | if ((r = unit_add_default_cgroup(u)) < 0) | |
804 | return r; | |
805 | ||
56d748b4 | 806 | if ((r = sysv_fix_order(s)) < 0) |
23a177ef | 807 | return r; |
05e343b7 LP |
808 | |
809 | if (s->bus_name) { | |
810 | if ((r = service_add_bus_name(s)) < 0) | |
811 | return r; | |
812 | ||
813 | if ((r = unit_watch_bus_name(u, s->bus_name)) < 0) | |
814 | return r; | |
815 | } | |
8e274523 LP |
816 | } |
817 | ||
243b1432 | 818 | return service_verify(s); |
034c6ed7 LP |
819 | } |
820 | ||
87f0e418 | 821 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 822 | |
5cb5a6ff | 823 | ServiceExecCommand c; |
87f0e418 | 824 | Service *s = SERVICE(u); |
47be870b LP |
825 | const char *prefix2; |
826 | char *p2; | |
5cb5a6ff LP |
827 | |
828 | assert(s); | |
829 | ||
47be870b LP |
830 | p2 = strappend(prefix, "\t"); |
831 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 832 | |
5cb5a6ff | 833 | fprintf(f, |
81a2b7ce LP |
834 | "%sService State: %s\n" |
835 | "%sPermissionsStartOnly: %s\n" | |
8e274523 | 836 | "%sRootDirectoryStartOnly: %s\n" |
03d6ab85 | 837 | "%sValidNoProcess: %s\n" |
50159e6a | 838 | "%sKillMode: %s\n" |
03d6ab85 | 839 | "%sType: %s\n", |
81a2b7ce LP |
840 | prefix, service_state_to_string(s->state), |
841 | prefix, yes_no(s->permissions_start_only), | |
8e274523 | 842 | prefix, yes_no(s->root_directory_start_only), |
03d6ab85 | 843 | prefix, yes_no(s->valid_no_process), |
50159e6a | 844 | prefix, kill_mode_to_string(s->kill_mode), |
03d6ab85 | 845 | prefix, service_type_to_string(s->type)); |
5cb5a6ff | 846 | |
70123e68 LP |
847 | if (s->control_pid > 0) |
848 | fprintf(f, | |
849 | "%sControl PID: %llu\n", | |
850 | prefix, (unsigned long long) s->control_pid); | |
851 | ||
852 | if (s->main_pid > 0) | |
853 | fprintf(f, | |
854 | "%sMain PID: %llu\n", | |
855 | prefix, (unsigned long long) s->main_pid); | |
856 | ||
034c6ed7 LP |
857 | if (s->pid_file) |
858 | fprintf(f, | |
859 | "%sPIDFile: %s\n", | |
860 | prefix, s->pid_file); | |
861 | ||
05e343b7 LP |
862 | if (s->bus_name) |
863 | fprintf(f, | |
864 | "%sBusName: %s\n" | |
865 | "%sBus Name Good: %s\n", | |
866 | prefix, s->bus_name, | |
867 | prefix, yes_no(s->bus_name_good)); | |
868 | ||
5cb5a6ff LP |
869 | exec_context_dump(&s->exec_context, f, prefix); |
870 | ||
e537352b | 871 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 872 | |
44d8db9e LP |
873 | if (!s->exec_command[c]) |
874 | continue; | |
875 | ||
40d50879 | 876 | fprintf(f, "%s-> %s:\n", |
94f04347 | 877 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
878 | |
879 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 880 | } |
44d8db9e | 881 | |
2c4104f0 LP |
882 | if (s->sysv_path) |
883 | fprintf(f, | |
23a177ef LP |
884 | "%sSysV Init Script Path: %s\n" |
885 | "%sSysV Init Script has LSB Header: %s\n", | |
886 | prefix, s->sysv_path, | |
887 | prefix, yes_no(s->sysv_has_lsb)); | |
2c4104f0 LP |
888 | |
889 | if (s->sysv_start_priority >= 0) | |
890 | fprintf(f, | |
23a177ef | 891 | "%sSysVStartPriority: %i\n", |
2c4104f0 LP |
892 | prefix, s->sysv_start_priority); |
893 | ||
8309400a LP |
894 | if (s->sysv_runlevels) |
895 | fprintf(f, "%sSysVRunLevels: %s\n", | |
896 | prefix, s->sysv_runlevels); | |
23a177ef | 897 | |
47be870b | 898 | free(p2); |
5cb5a6ff LP |
899 | } |
900 | ||
034c6ed7 LP |
901 | static int service_load_pid_file(Service *s) { |
902 | char *k; | |
903 | unsigned long p; | |
904 | int r; | |
905 | ||
906 | assert(s); | |
907 | ||
908 | if (s->main_pid_known) | |
909 | return 0; | |
910 | ||
5e94833f LP |
911 | assert(s->main_pid <= 0); |
912 | ||
034c6ed7 LP |
913 | if (!s->pid_file) |
914 | return -ENOENT; | |
915 | ||
916 | if ((r = read_one_line_file(s->pid_file, &k)) < 0) | |
917 | return r; | |
918 | ||
919 | if ((r = safe_atolu(k, &p)) < 0) { | |
920 | free(k); | |
921 | return r; | |
922 | } | |
923 | ||
924 | if ((unsigned long) (pid_t) p != p) | |
925 | return -ERANGE; | |
926 | ||
b8c597d5 LP |
927 | if (kill((pid_t) p, 0) < 0 && errno != EPERM) { |
928 | log_warning("PID %llu read from file %s does not exist. Your service or init script might be broken.", | |
929 | (unsigned long long) p, s->pid_file); | |
930 | return -ESRCH; | |
931 | } | |
932 | ||
16f6025e LP |
933 | if ((r = unit_watch_pid(UNIT(s), (pid_t) p)) < 0) |
934 | /* FIXME: we need to do something here */ | |
935 | return r; | |
936 | ||
b8c597d5 | 937 | s->main_pid = (pid_t) p; |
034c6ed7 LP |
938 | s->main_pid_known = true; |
939 | ||
940 | return 0; | |
941 | } | |
942 | ||
3e33402a LP |
943 | static int service_get_sockets(Service *s, Set **_set) { |
944 | Set *set; | |
ceee3d82 LP |
945 | Iterator i; |
946 | char *t; | |
3e33402a | 947 | int r; |
ceee3d82 LP |
948 | |
949 | assert(s); | |
3e33402a LP |
950 | assert(_set); |
951 | ||
952 | /* Collects all Socket objects that belong to this | |
953 | * service. Note that a service might have multiple sockets | |
954 | * via multiple names. */ | |
955 | ||
956 | if (!(set = set_new(NULL, NULL))) | |
957 | return -ENOMEM; | |
ceee3d82 LP |
958 | |
959 | SET_FOREACH(t, UNIT(s)->meta.names, i) { | |
960 | char *k; | |
961 | Unit *p; | |
962 | ||
963 | /* Look for all socket objects that go by any of our | |
964 | * units and collect their fds */ | |
965 | ||
3e33402a LP |
966 | if (!(k = unit_name_change_suffix(t, ".socket"))) { |
967 | r = -ENOMEM; | |
968 | goto fail; | |
969 | } | |
ceee3d82 LP |
970 | |
971 | p = manager_get_unit(UNIT(s)->meta.manager, k); | |
972 | free(k); | |
973 | ||
8d567588 LP |
974 | if (!p) |
975 | continue; | |
ceee3d82 | 976 | |
3e33402a LP |
977 | if ((r = set_put(set, p)) < 0) |
978 | goto fail; | |
ceee3d82 LP |
979 | } |
980 | ||
3e33402a LP |
981 | *_set = set; |
982 | return 0; | |
983 | ||
984 | fail: | |
985 | set_free(set); | |
986 | return r; | |
987 | } | |
988 | ||
e537352b | 989 | static int service_notify_sockets_dead(Service *s) { |
3e33402a LP |
990 | Iterator i; |
991 | Set *set; | |
47be870b | 992 | Socket *sock; |
3e33402a LP |
993 | int r; |
994 | ||
995 | assert(s); | |
996 | ||
997 | /* Notifies all our sockets when we die */ | |
3e33402a LP |
998 | if ((r = service_get_sockets(s, &set)) < 0) |
999 | return r; | |
1000 | ||
47be870b LP |
1001 | SET_FOREACH(sock, set, i) |
1002 | socket_notify_service_dead(sock); | |
3e33402a LP |
1003 | |
1004 | set_free(set); | |
1005 | ||
ceee3d82 LP |
1006 | return 0; |
1007 | } | |
1008 | ||
034c6ed7 LP |
1009 | static void service_set_state(Service *s, ServiceState state) { |
1010 | ServiceState old_state; | |
5cb5a6ff LP |
1011 | assert(s); |
1012 | ||
034c6ed7 | 1013 | old_state = s->state; |
5cb5a6ff | 1014 | s->state = state; |
034c6ed7 LP |
1015 | |
1016 | if (state != SERVICE_START_PRE && | |
1017 | state != SERVICE_START && | |
1018 | state != SERVICE_START_POST && | |
1019 | state != SERVICE_RELOAD && | |
1020 | state != SERVICE_STOP && | |
1021 | state != SERVICE_STOP_SIGTERM && | |
1022 | state != SERVICE_STOP_SIGKILL && | |
1023 | state != SERVICE_STOP_POST && | |
1024 | state != SERVICE_FINAL_SIGTERM && | |
1025 | state != SERVICE_FINAL_SIGKILL && | |
1026 | state != SERVICE_AUTO_RESTART) | |
acbb0225 | 1027 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1028 | |
7d55e835 LP |
1029 | if (state != SERVICE_START && |
1030 | state != SERVICE_START_POST && | |
034c6ed7 LP |
1031 | state != SERVICE_RUNNING && |
1032 | state != SERVICE_RELOAD && | |
1033 | state != SERVICE_STOP && | |
1034 | state != SERVICE_STOP_SIGTERM && | |
1035 | state != SERVICE_STOP_SIGKILL) | |
5e94833f | 1036 | service_unwatch_main_pid(s); |
034c6ed7 LP |
1037 | |
1038 | if (state != SERVICE_START_PRE && | |
1039 | state != SERVICE_START && | |
1040 | state != SERVICE_START_POST && | |
1041 | state != SERVICE_RELOAD && | |
1042 | state != SERVICE_STOP && | |
1043 | state != SERVICE_STOP_SIGTERM && | |
1044 | state != SERVICE_STOP_SIGKILL && | |
1045 | state != SERVICE_STOP_POST && | |
1046 | state != SERVICE_FINAL_SIGTERM && | |
e537352b | 1047 | state != SERVICE_FINAL_SIGKILL) { |
5e94833f | 1048 | service_unwatch_control_pid(s); |
034c6ed7 | 1049 | s->control_command = NULL; |
a16e1123 | 1050 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1051 | } |
034c6ed7 | 1052 | |
ceee3d82 LP |
1053 | if (state == SERVICE_DEAD || |
1054 | state == SERVICE_STOP || | |
1055 | state == SERVICE_STOP_SIGTERM || | |
1056 | state == SERVICE_STOP_SIGKILL || | |
1057 | state == SERVICE_STOP_POST || | |
1058 | state == SERVICE_FINAL_SIGTERM || | |
1059 | state == SERVICE_FINAL_SIGKILL || | |
1060 | state == SERVICE_MAINTAINANCE || | |
1061 | state == SERVICE_AUTO_RESTART) | |
e537352b | 1062 | service_notify_sockets_dead(s); |
ceee3d82 | 1063 | |
4f2d528d LP |
1064 | if (state != SERVICE_START_PRE && |
1065 | state != SERVICE_START && | |
1066 | !(state == SERVICE_DEAD && UNIT(s)->meta.job)) | |
1067 | service_close_socket_fd(s); | |
1068 | ||
e537352b | 1069 | if (old_state != state) |
40d50879 | 1070 | log_debug("%s changed %s -> %s", UNIT(s)->meta.id, service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 LP |
1071 | |
1072 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]); | |
034c6ed7 LP |
1073 | } |
1074 | ||
a16e1123 LP |
1075 | static int service_coldplug(Unit *u) { |
1076 | Service *s = SERVICE(u); | |
1077 | int r; | |
1078 | ||
1079 | assert(s); | |
1080 | assert(s->state == SERVICE_DEAD); | |
1081 | ||
1082 | if (s->deserialized_state != s->state) { | |
1083 | ||
1084 | if (s->deserialized_state == SERVICE_START_PRE || | |
1085 | s->deserialized_state == SERVICE_START || | |
1086 | s->deserialized_state == SERVICE_START_POST || | |
1087 | s->deserialized_state == SERVICE_RELOAD || | |
1088 | s->deserialized_state == SERVICE_STOP || | |
1089 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1090 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1091 | s->deserialized_state == SERVICE_STOP_POST || | |
1092 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1093 | s->deserialized_state == SERVICE_FINAL_SIGKILL || | |
e558336f LP |
1094 | s->deserialized_state == SERVICE_AUTO_RESTART) { |
1095 | ||
1096 | if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) { | |
1097 | usec_t k; | |
1098 | ||
1099 | k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec; | |
1100 | ||
1101 | if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0) | |
1102 | return r; | |
1103 | } | |
1104 | } | |
a16e1123 LP |
1105 | |
1106 | if ((s->deserialized_state == SERVICE_START && | |
1107 | (s->type == SERVICE_FORKING || | |
1108 | s->type == SERVICE_DBUS)) || | |
1109 | s->deserialized_state == SERVICE_START_POST || | |
1110 | s->deserialized_state == SERVICE_RUNNING || | |
1111 | s->deserialized_state == SERVICE_RELOAD || | |
1112 | s->deserialized_state == SERVICE_STOP || | |
1113 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1114 | s->deserialized_state == SERVICE_STOP_SIGKILL) | |
1115 | if (s->main_pid > 0) | |
1116 | if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0) | |
1117 | return r; | |
1118 | ||
1119 | if (s->deserialized_state == SERVICE_START_PRE || | |
1120 | s->deserialized_state == SERVICE_START || | |
1121 | s->deserialized_state == SERVICE_START_POST || | |
1122 | s->deserialized_state == SERVICE_RELOAD || | |
1123 | s->deserialized_state == SERVICE_STOP || | |
1124 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1125 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1126 | s->deserialized_state == SERVICE_STOP_POST || | |
1127 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1128 | s->deserialized_state == SERVICE_FINAL_SIGKILL) | |
1129 | if (s->control_pid > 0) | |
1130 | if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0) | |
1131 | return r; | |
1132 | ||
1133 | service_set_state(s, s->deserialized_state); | |
1134 | } | |
1135 | ||
1136 | return 0; | |
1137 | } | |
1138 | ||
44d8db9e LP |
1139 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
1140 | Iterator i; | |
1141 | int r; | |
1142 | int *rfds = NULL; | |
1143 | unsigned rn_fds = 0; | |
3e33402a | 1144 | Set *set; |
47be870b | 1145 | Socket *sock; |
44d8db9e LP |
1146 | |
1147 | assert(s); | |
1148 | assert(fds); | |
1149 | assert(n_fds); | |
1150 | ||
3e33402a LP |
1151 | if ((r = service_get_sockets(s, &set)) < 0) |
1152 | return r; | |
1153 | ||
47be870b | 1154 | SET_FOREACH(sock, set, i) { |
44d8db9e LP |
1155 | int *cfds; |
1156 | unsigned cn_fds; | |
1157 | ||
47be870b | 1158 | if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0) |
44d8db9e LP |
1159 | goto fail; |
1160 | ||
1161 | if (!cfds) | |
1162 | continue; | |
1163 | ||
1164 | if (!rfds) { | |
1165 | rfds = cfds; | |
1166 | rn_fds = cn_fds; | |
1167 | } else { | |
1168 | int *t; | |
1169 | ||
1170 | if (!(t = new(int, rn_fds+cn_fds))) { | |
1171 | free(cfds); | |
1172 | r = -ENOMEM; | |
1173 | goto fail; | |
1174 | } | |
1175 | ||
1176 | memcpy(t, rfds, rn_fds); | |
1177 | memcpy(t+rn_fds, cfds, cn_fds); | |
1178 | free(rfds); | |
1179 | free(cfds); | |
1180 | ||
1181 | rfds = t; | |
1182 | rn_fds = rn_fds+cn_fds; | |
1183 | } | |
1184 | } | |
1185 | ||
1186 | *fds = rfds; | |
1187 | *n_fds = rn_fds; | |
3e33402a LP |
1188 | |
1189 | set_free(set); | |
1190 | ||
44d8db9e LP |
1191 | return 0; |
1192 | ||
1193 | fail: | |
3e33402a | 1194 | set_free(set); |
44d8db9e | 1195 | free(rfds); |
3e33402a | 1196 | |
44d8db9e LP |
1197 | return r; |
1198 | } | |
1199 | ||
81a2b7ce LP |
1200 | static int service_spawn( |
1201 | Service *s, | |
1202 | ExecCommand *c, | |
1203 | bool timeout, | |
1204 | bool pass_fds, | |
1205 | bool apply_permissions, | |
1206 | bool apply_chroot, | |
1207 | pid_t *_pid) { | |
1208 | ||
034c6ed7 LP |
1209 | pid_t pid; |
1210 | int r; | |
44d8db9e LP |
1211 | int *fds = NULL; |
1212 | unsigned n_fds = 0; | |
9e2f7c11 | 1213 | char **argv; |
034c6ed7 LP |
1214 | |
1215 | assert(s); | |
1216 | assert(c); | |
1217 | assert(_pid); | |
1218 | ||
4f2d528d LP |
1219 | if (pass_fds) { |
1220 | if (s->socket_fd >= 0) { | |
1221 | fds = &s->socket_fd; | |
1222 | n_fds = 1; | |
1223 | } else if ((r = service_collect_fds(s, &fds, &n_fds)) < 0) | |
44d8db9e | 1224 | goto fail; |
4f2d528d | 1225 | } |
44d8db9e | 1226 | |
e558336f | 1227 | if (timeout && s->timeout_usec) { |
acbb0225 | 1228 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) |
034c6ed7 LP |
1229 | goto fail; |
1230 | } else | |
acbb0225 | 1231 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1232 | |
9e2f7c11 LP |
1233 | if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) { |
1234 | r = -ENOMEM; | |
1235 | goto fail; | |
1236 | } | |
1237 | ||
1238 | r = exec_spawn(c, | |
1239 | argv, | |
1240 | &s->exec_context, | |
1241 | fds, n_fds, | |
1137a57c | 1242 | s->meta.manager->environment, |
9e2f7c11 LP |
1243 | apply_permissions, |
1244 | apply_chroot, | |
1245 | UNIT(s)->meta.manager->confirm_spawn, | |
1246 | UNIT(s)->meta.cgroup_bondings, | |
1247 | &pid); | |
1248 | ||
1249 | strv_free(argv); | |
1250 | if (r < 0) | |
034c6ed7 LP |
1251 | goto fail; |
1252 | ||
4f2d528d LP |
1253 | if (fds) { |
1254 | if (s->socket_fd >= 0) | |
1255 | service_close_socket_fd(s); | |
1256 | else | |
1257 | free(fds); | |
1258 | } | |
1259 | ||
87f0e418 | 1260 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) |
034c6ed7 LP |
1261 | /* FIXME: we need to do something here */ |
1262 | goto fail; | |
1263 | ||
1264 | *_pid = pid; | |
1265 | ||
5cb5a6ff | 1266 | return 0; |
034c6ed7 LP |
1267 | |
1268 | fail: | |
44d8db9e LP |
1269 | free(fds); |
1270 | ||
034c6ed7 | 1271 | if (timeout) |
acbb0225 | 1272 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 LP |
1273 | |
1274 | return r; | |
1275 | } | |
1276 | ||
80876c20 LP |
1277 | static int main_pid_good(Service *s) { |
1278 | assert(s); | |
1279 | ||
1280 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1281 | * don't know */ | |
1282 | ||
1283 | /* If we know the pid file, then lets just check if it is | |
1284 | * still valid */ | |
1285 | if (s->main_pid_known) | |
1286 | return s->main_pid > 0; | |
1287 | ||
1288 | /* We don't know the pid */ | |
1289 | return -EAGAIN; | |
1290 | } | |
1291 | ||
1292 | static int control_pid_good(Service *s) { | |
1293 | assert(s); | |
1294 | ||
1295 | return s->control_pid > 0; | |
1296 | } | |
1297 | ||
1298 | static int cgroup_good(Service *s) { | |
1299 | int r; | |
1300 | ||
1301 | assert(s); | |
1302 | ||
1303 | if (s->valid_no_process) | |
1304 | return -EAGAIN; | |
1305 | ||
1306 | if ((r = cgroup_bonding_is_empty_list(UNIT(s)->meta.cgroup_bondings)) < 0) | |
1307 | return r; | |
1308 | ||
1309 | return !r; | |
1310 | } | |
1311 | ||
034c6ed7 LP |
1312 | static void service_enter_dead(Service *s, bool success, bool allow_restart) { |
1313 | int r; | |
1314 | assert(s); | |
1315 | ||
1316 | if (!success) | |
1317 | s->failure = true; | |
1318 | ||
1319 | if (allow_restart && | |
3a762661 | 1320 | s->allow_restart && |
034c6ed7 LP |
1321 | (s->restart == SERVICE_RESTART_ALWAYS || |
1322 | (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) { | |
1323 | ||
acbb0225 | 1324 | if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0) |
034c6ed7 LP |
1325 | goto fail; |
1326 | ||
1327 | service_set_state(s, SERVICE_AUTO_RESTART); | |
1328 | } else | |
1329 | service_set_state(s, s->failure ? SERVICE_MAINTAINANCE : SERVICE_DEAD); | |
1330 | ||
1331 | return; | |
1332 | ||
1333 | fail: | |
9e2f7c11 | 1334 | log_warning("%s failed to run install restart timer: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1335 | service_enter_dead(s, false, false); |
1336 | } | |
1337 | ||
1338 | static void service_enter_signal(Service *s, ServiceState state, bool success); | |
1339 | ||
1340 | static void service_enter_stop_post(Service *s, bool success) { | |
1341 | int r; | |
1342 | assert(s); | |
1343 | ||
1344 | if (!success) | |
1345 | s->failure = true; | |
1346 | ||
5e94833f LP |
1347 | service_unwatch_control_pid(s); |
1348 | ||
a16e1123 | 1349 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
80876c20 | 1350 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) { |
81a2b7ce LP |
1351 | if ((r = service_spawn(s, |
1352 | s->control_command, | |
1353 | true, | |
1354 | false, | |
1355 | !s->permissions_start_only, | |
1356 | !s->root_directory_start_only, | |
1357 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1358 | goto fail; |
1359 | ||
d6ea93e3 | 1360 | |
80876c20 LP |
1361 | service_set_state(s, SERVICE_STOP_POST); |
1362 | } else | |
1363 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, true); | |
034c6ed7 LP |
1364 | |
1365 | return; | |
1366 | ||
1367 | fail: | |
9e2f7c11 | 1368 | log_warning("%s failed to run stop-post executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1369 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
1370 | } | |
1371 | ||
1372 | static void service_enter_signal(Service *s, ServiceState state, bool success) { | |
1373 | int r; | |
1374 | bool sent = false; | |
1375 | ||
1376 | assert(s); | |
1377 | ||
1378 | if (!success) | |
1379 | s->failure = true; | |
1380 | ||
80876c20 LP |
1381 | if (s->kill_mode != KILL_NONE) { |
1382 | int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL; | |
034c6ed7 | 1383 | |
50159e6a | 1384 | if (s->kill_mode == KILL_CONTROL_GROUP) { |
034c6ed7 | 1385 | |
50159e6a LP |
1386 | if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) { |
1387 | if (r != -EAGAIN && r != -ESRCH) | |
1388 | goto fail; | |
1389 | } else | |
034c6ed7 LP |
1390 | sent = true; |
1391 | } | |
1392 | ||
50159e6a LP |
1393 | if (!sent) { |
1394 | r = 0; | |
80876c20 | 1395 | |
50159e6a LP |
1396 | if (s->main_pid > 0) { |
1397 | if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH) | |
1398 | r = -errno; | |
1399 | else | |
1400 | sent = true; | |
1401 | } | |
1402 | ||
1403 | if (s->control_pid > 0) { | |
1404 | if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) | |
1405 | r = -errno; | |
1406 | else | |
1407 | sent = true; | |
1408 | } | |
1409 | ||
1410 | if (r < 0) | |
1411 | goto fail; | |
1412 | } | |
d6ea93e3 | 1413 | } |
034c6ed7 | 1414 | |
e93bc5a6 | 1415 | if (sent && (s->main_pid > 0 || s->control_pid > 0)) { |
e558336f LP |
1416 | if (s->timeout_usec > 0) |
1417 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) | |
1418 | goto fail; | |
d6ea93e3 | 1419 | |
80876c20 LP |
1420 | service_set_state(s, state); |
1421 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
1422 | service_enter_stop_post(s, true); | |
1423 | else | |
034c6ed7 LP |
1424 | service_enter_dead(s, true, true); |
1425 | ||
1426 | return; | |
1427 | ||
1428 | fail: | |
9e2f7c11 | 1429 | log_warning("%s failed to kill processes: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 | 1430 | |
80876c20 | 1431 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
034c6ed7 LP |
1432 | service_enter_stop_post(s, false); |
1433 | else | |
1434 | service_enter_dead(s, false, true); | |
1435 | } | |
1436 | ||
1437 | static void service_enter_stop(Service *s, bool success) { | |
1438 | int r; | |
1439 | assert(s); | |
1440 | ||
1441 | if (!success) | |
1442 | s->failure = true; | |
1443 | ||
5e94833f LP |
1444 | service_unwatch_control_pid(s); |
1445 | ||
a16e1123 | 1446 | s->control_command_id = SERVICE_EXEC_STOP; |
80876c20 | 1447 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) { |
81a2b7ce LP |
1448 | if ((r = service_spawn(s, |
1449 | s->control_command, | |
1450 | true, | |
1451 | false, | |
1452 | !s->permissions_start_only, | |
1453 | !s->root_directory_start_only, | |
1454 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1455 | goto fail; |
1456 | ||
80876c20 LP |
1457 | service_set_state(s, SERVICE_STOP); |
1458 | } else | |
034c6ed7 LP |
1459 | service_enter_signal(s, SERVICE_STOP_SIGTERM, true); |
1460 | ||
1461 | return; | |
1462 | ||
1463 | fail: | |
9e2f7c11 | 1464 | log_warning("%s failed to run stop executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1465 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); |
1466 | } | |
1467 | ||
80876c20 LP |
1468 | static void service_enter_running(Service *s, bool success) { |
1469 | assert(s); | |
1470 | ||
1471 | if (!success) | |
1472 | s->failure = true; | |
1473 | ||
05e343b7 LP |
1474 | if (main_pid_good(s) != 0 && |
1475 | cgroup_good(s) != 0 && | |
1476 | (s->bus_name_good || s->type != SERVICE_DBUS)) | |
80876c20 LP |
1477 | service_set_state(s, SERVICE_RUNNING); |
1478 | else if (s->valid_no_process) | |
1479 | service_set_state(s, SERVICE_EXITED); | |
1480 | else | |
1481 | service_enter_stop(s, true); | |
1482 | } | |
1483 | ||
034c6ed7 LP |
1484 | static void service_enter_start_post(Service *s) { |
1485 | int r; | |
1486 | assert(s); | |
1487 | ||
5e94833f LP |
1488 | service_unwatch_control_pid(s); |
1489 | ||
a16e1123 | 1490 | s->control_command_id = SERVICE_EXEC_START_POST; |
80876c20 | 1491 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) { |
81a2b7ce LP |
1492 | if ((r = service_spawn(s, |
1493 | s->control_command, | |
1494 | true, | |
1495 | false, | |
1496 | !s->permissions_start_only, | |
1497 | !s->root_directory_start_only, | |
1498 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1499 | goto fail; |
1500 | ||
d6ea93e3 | 1501 | |
80876c20 LP |
1502 | service_set_state(s, SERVICE_START_POST); |
1503 | } else | |
1504 | service_enter_running(s, true); | |
034c6ed7 LP |
1505 | |
1506 | return; | |
1507 | ||
1508 | fail: | |
9e2f7c11 | 1509 | log_warning("%s failed to run start-post executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1510 | service_enter_stop(s, false); |
1511 | } | |
1512 | ||
1513 | static void service_enter_start(Service *s) { | |
1514 | pid_t pid; | |
1515 | int r; | |
1516 | ||
1517 | assert(s); | |
1518 | ||
1519 | assert(s->exec_command[SERVICE_EXEC_START]); | |
1520 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next); | |
1521 | ||
80876c20 LP |
1522 | if (s->type == SERVICE_FORKING) |
1523 | service_unwatch_control_pid(s); | |
1524 | else | |
1525 | service_unwatch_main_pid(s); | |
1526 | ||
81a2b7ce LP |
1527 | if ((r = service_spawn(s, |
1528 | s->exec_command[SERVICE_EXEC_START], | |
05e343b7 | 1529 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS, |
81a2b7ce LP |
1530 | true, |
1531 | true, | |
1532 | true, | |
1533 | &pid)) < 0) | |
034c6ed7 LP |
1534 | goto fail; |
1535 | ||
1536 | if (s->type == SERVICE_SIMPLE) { | |
1537 | /* For simple services we immediately start | |
1538 | * the START_POST binaries. */ | |
1539 | ||
1540 | s->main_pid = pid; | |
1541 | s->main_pid_known = true; | |
80876c20 | 1542 | |
034c6ed7 LP |
1543 | service_enter_start_post(s); |
1544 | ||
1545 | } else if (s->type == SERVICE_FORKING) { | |
1546 | ||
1547 | /* For forking services we wait until the start | |
1548 | * process exited. */ | |
1549 | ||
1550 | s->control_pid = pid; | |
80876c20 | 1551 | |
a16e1123 | 1552 | s->control_command_id = SERVICE_EXEC_START; |
034c6ed7 | 1553 | s->control_command = s->exec_command[SERVICE_EXEC_START]; |
80876c20 LP |
1554 | service_set_state(s, SERVICE_START); |
1555 | ||
05e343b7 LP |
1556 | } else if (s->type == SERVICE_FINISH || |
1557 | s->type == SERVICE_DBUS) { | |
7d55e835 LP |
1558 | |
1559 | /* For finishing services we wait until the start | |
1560 | * process exited, too, but it is our main process. */ | |
1561 | ||
05e343b7 LP |
1562 | /* For D-Bus services we know the main pid right away, |
1563 | * but wait for the bus name to appear on the bus. */ | |
1564 | ||
7d55e835 | 1565 | s->main_pid = pid; |
5e94833f | 1566 | s->main_pid_known = true; |
80876c20 | 1567 | |
80876c20 | 1568 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1569 | } else |
1570 | assert_not_reached("Unknown service type"); | |
1571 | ||
1572 | return; | |
1573 | ||
1574 | fail: | |
9e2f7c11 | 1575 | log_warning("%s failed to run start exectuable: %s", UNIT(s)->meta.id, strerror(-r)); |
80876c20 | 1576 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
034c6ed7 LP |
1577 | } |
1578 | ||
1579 | static void service_enter_start_pre(Service *s) { | |
1580 | int r; | |
1581 | ||
1582 | assert(s); | |
1583 | ||
5e94833f LP |
1584 | service_unwatch_control_pid(s); |
1585 | ||
a16e1123 | 1586 | s->control_command_id = SERVICE_EXEC_START_PRE; |
80876c20 | 1587 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) { |
81a2b7ce LP |
1588 | if ((r = service_spawn(s, |
1589 | s->control_command, | |
1590 | true, | |
1591 | false, | |
1592 | !s->permissions_start_only, | |
1593 | !s->root_directory_start_only, | |
1594 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1595 | goto fail; |
1596 | ||
80876c20 LP |
1597 | service_set_state(s, SERVICE_START_PRE); |
1598 | } else | |
034c6ed7 LP |
1599 | service_enter_start(s); |
1600 | ||
1601 | return; | |
1602 | ||
1603 | fail: | |
9e2f7c11 | 1604 | log_warning("%s failed to run start-pre executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1605 | service_enter_dead(s, false, true); |
1606 | } | |
1607 | ||
1608 | static void service_enter_restart(Service *s) { | |
1609 | int r; | |
1610 | assert(s); | |
1611 | ||
9ea9a0c8 LP |
1612 | service_enter_dead(s, true, false); |
1613 | ||
87f0e418 | 1614 | if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0) |
034c6ed7 LP |
1615 | goto fail; |
1616 | ||
9e2f7c11 | 1617 | log_debug("%s scheduled restart job.", UNIT(s)->meta.id); |
034c6ed7 LP |
1618 | return; |
1619 | ||
1620 | fail: | |
1621 | ||
9e2f7c11 | 1622 | log_warning("%s failed to schedule restart job: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1623 | service_enter_dead(s, false, false); |
1624 | } | |
1625 | ||
1626 | static void service_enter_reload(Service *s) { | |
1627 | int r; | |
1628 | ||
1629 | assert(s); | |
1630 | ||
5e94833f LP |
1631 | service_unwatch_control_pid(s); |
1632 | ||
a16e1123 | 1633 | s->control_command_id = SERVICE_EXEC_RELOAD; |
80876c20 | 1634 | if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) { |
81a2b7ce LP |
1635 | if ((r = service_spawn(s, |
1636 | s->control_command, | |
1637 | true, | |
1638 | false, | |
1639 | !s->permissions_start_only, | |
1640 | !s->root_directory_start_only, | |
1641 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1642 | goto fail; |
1643 | ||
80876c20 LP |
1644 | service_set_state(s, SERVICE_RELOAD); |
1645 | } else | |
1646 | service_enter_running(s, true); | |
034c6ed7 LP |
1647 | |
1648 | return; | |
1649 | ||
1650 | fail: | |
9e2f7c11 | 1651 | log_warning("%s failed to run reload executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 LP |
1652 | service_enter_stop(s, false); |
1653 | } | |
1654 | ||
1655 | static void service_run_next(Service *s, bool success) { | |
1656 | int r; | |
1657 | ||
1658 | assert(s); | |
1659 | assert(s->control_command); | |
1660 | assert(s->control_command->command_next); | |
1661 | ||
1662 | if (!success) | |
1663 | s->failure = true; | |
1664 | ||
1665 | s->control_command = s->control_command->command_next; | |
1666 | ||
5e94833f LP |
1667 | service_unwatch_control_pid(s); |
1668 | ||
81a2b7ce LP |
1669 | if ((r = service_spawn(s, |
1670 | s->control_command, | |
1671 | true, | |
1672 | false, | |
1673 | !s->permissions_start_only, | |
1674 | !s->root_directory_start_only, | |
1675 | &s->control_pid)) < 0) | |
034c6ed7 LP |
1676 | goto fail; |
1677 | ||
1678 | return; | |
1679 | ||
1680 | fail: | |
9e2f7c11 | 1681 | log_warning("%s failed to run spawn next executable: %s", UNIT(s)->meta.id, strerror(-r)); |
034c6ed7 | 1682 | |
80876c20 LP |
1683 | if (s->state == SERVICE_START_PRE) |
1684 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); | |
1685 | else if (s->state == SERVICE_STOP) | |
1686 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); | |
034c6ed7 LP |
1687 | else if (s->state == SERVICE_STOP_POST) |
1688 | service_enter_dead(s, false, true); | |
1689 | else | |
1690 | service_enter_stop(s, false); | |
5cb5a6ff LP |
1691 | } |
1692 | ||
87f0e418 LP |
1693 | static int service_start(Unit *u) { |
1694 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1695 | |
1696 | assert(s); | |
1697 | ||
034c6ed7 LP |
1698 | /* We cannot fulfill this request right now, try again later |
1699 | * please! */ | |
1700 | if (s->state == SERVICE_STOP || | |
1701 | s->state == SERVICE_STOP_SIGTERM || | |
1702 | s->state == SERVICE_STOP_SIGKILL || | |
1703 | s->state == SERVICE_STOP_POST || | |
1704 | s->state == SERVICE_FINAL_SIGTERM || | |
1705 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
1706 | return -EAGAIN; |
1707 | ||
034c6ed7 LP |
1708 | /* Already on it! */ |
1709 | if (s->state == SERVICE_START_PRE || | |
1710 | s->state == SERVICE_START || | |
1711 | s->state == SERVICE_START_POST) | |
1712 | return 0; | |
1713 | ||
1714 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTAINANCE || s->state == SERVICE_AUTO_RESTART); | |
5cb5a6ff | 1715 | |
1e2e8133 LP |
1716 | /* Make sure we don't enter a busy loop of some kind. */ |
1717 | if (!ratelimit_test(&s->ratelimit)) { | |
9e2f7c11 | 1718 | log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id); |
d5159713 | 1719 | return -ECANCELED; |
1e2e8133 LP |
1720 | } |
1721 | ||
034c6ed7 LP |
1722 | s->failure = false; |
1723 | s->main_pid_known = false; | |
3a762661 | 1724 | s->allow_restart = true; |
034c6ed7 LP |
1725 | |
1726 | service_enter_start_pre(s); | |
1727 | return 0; | |
5cb5a6ff LP |
1728 | } |
1729 | ||
87f0e418 LP |
1730 | static int service_stop(Unit *u) { |
1731 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1732 | |
1733 | assert(s); | |
1734 | ||
e537352b | 1735 | /* Cannot do this now */ |
034c6ed7 LP |
1736 | if (s->state == SERVICE_START_PRE || |
1737 | s->state == SERVICE_START || | |
1738 | s->state == SERVICE_START_POST || | |
1739 | s->state == SERVICE_RELOAD) | |
1740 | return -EAGAIN; | |
1741 | ||
e537352b LP |
1742 | /* Already on it */ |
1743 | if (s->state == SERVICE_STOP || | |
1744 | s->state == SERVICE_STOP_SIGTERM || | |
1745 | s->state == SERVICE_STOP_SIGKILL || | |
1746 | s->state == SERVICE_STOP_POST || | |
1747 | s->state == SERVICE_FINAL_SIGTERM || | |
1748 | s->state == SERVICE_FINAL_SIGKILL) | |
1749 | return 0; | |
1750 | ||
034c6ed7 LP |
1751 | if (s->state == SERVICE_AUTO_RESTART) { |
1752 | service_set_state(s, SERVICE_DEAD); | |
1753 | return 0; | |
1754 | } | |
1755 | ||
80876c20 | 1756 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
5cb5a6ff | 1757 | |
3a762661 LP |
1758 | /* This is a user request, so don't do restarts on this |
1759 | * shutdown. */ | |
1760 | s->allow_restart = false; | |
1761 | ||
034c6ed7 | 1762 | service_enter_stop(s, true); |
5cb5a6ff LP |
1763 | return 0; |
1764 | } | |
1765 | ||
87f0e418 LP |
1766 | static int service_reload(Unit *u) { |
1767 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1768 | |
1769 | assert(s); | |
1770 | ||
80876c20 | 1771 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
1772 | |
1773 | service_enter_reload(s); | |
5cb5a6ff LP |
1774 | return 0; |
1775 | } | |
1776 | ||
87f0e418 LP |
1777 | static bool service_can_reload(Unit *u) { |
1778 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1779 | |
1780 | assert(s); | |
1781 | ||
1782 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
1783 | } | |
1784 | ||
a16e1123 LP |
1785 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
1786 | Service *s = SERVICE(u); | |
1787 | ||
1788 | assert(u); | |
1789 | assert(f); | |
1790 | assert(fds); | |
1791 | ||
1792 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
1793 | unit_serialize_item(u, f, "failure", yes_no(s->failure)); | |
1794 | ||
1795 | if (s->control_pid > 0) | |
1796 | unit_serialize_item_format(u, f, "control-pid", "%u", (unsigned) (s->control_pid)); | |
1797 | ||
1798 | if (s->main_pid > 0) | |
1799 | unit_serialize_item_format(u, f, "main-pid", "%u", (unsigned) (s->main_pid)); | |
1800 | ||
1801 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
1802 | ||
1803 | /* There's a minor uncleanliness here: if there are multiple | |
1804 | * commands attached here, we will start from the first one | |
1805 | * again */ | |
1806 | if (s->control_command_id >= 0) | |
825636e5 | 1807 | unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); |
a16e1123 LP |
1808 | |
1809 | if (s->socket_fd >= 0) { | |
1810 | int copy; | |
1811 | ||
1812 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
1813 | return copy; | |
1814 | ||
1815 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
1816 | } | |
1817 | ||
1818 | return 0; | |
1819 | } | |
1820 | ||
1821 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
1822 | Service *s = SERVICE(u); | |
1823 | int r; | |
1824 | ||
1825 | assert(u); | |
1826 | assert(key); | |
1827 | assert(value); | |
1828 | assert(fds); | |
1829 | ||
1830 | if (streq(key, "state")) { | |
1831 | ServiceState state; | |
1832 | ||
1833 | if ((state = service_state_from_string(value)) < 0) | |
1834 | log_debug("Failed to parse state value %s", value); | |
1835 | else | |
1836 | s->deserialized_state = state; | |
1837 | } else if (streq(key, "failure")) { | |
1838 | int b; | |
1839 | ||
1840 | if ((b = parse_boolean(value)) < 0) | |
1841 | log_debug("Failed to parse failure value %s", value); | |
1842 | else | |
1843 | s->failure = b || s->failure; | |
1844 | } else if (streq(key, "control-pid")) { | |
1845 | unsigned pid; | |
1846 | ||
1847 | if ((r = safe_atou(value, &pid)) < 0 || pid <= 0) | |
1848 | log_debug("Failed to parse control-pid value %s", value); | |
1849 | else | |
1850 | s->control_pid = (pid_t) pid; | |
1851 | } else if (streq(key, "main-pid")) { | |
1852 | unsigned pid; | |
1853 | ||
1854 | if ((r = safe_atou(value, &pid)) < 0 || pid <= 0) | |
1855 | log_debug("Failed to parse main-pid value %s", value); | |
1856 | else | |
1857 | s->main_pid = (pid_t) pid; | |
1858 | } else if (streq(key, "main-pid-known")) { | |
1859 | int b; | |
1860 | ||
1861 | if ((b = parse_boolean(value)) < 0) | |
1862 | log_debug("Failed to parse main-pid-known value %s", value); | |
1863 | else | |
1864 | s->main_pid_known = b; | |
1865 | } else if (streq(key, "control-command")) { | |
1866 | ServiceExecCommand id; | |
1867 | ||
1868 | if ((id = service_exec_command_from_string(value)) < 0) | |
1869 | log_debug("Failed to parse exec-command value %s", value); | |
1870 | else { | |
1871 | s->control_command_id = id; | |
1872 | s->control_command = s->exec_command[id]; | |
1873 | } | |
1874 | } else if (streq(key, "socket-fd")) { | |
1875 | int fd; | |
1876 | ||
1877 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
1878 | log_debug("Failed to parse socket-fd value %s", value); | |
1879 | else { | |
1880 | ||
1881 | if (s->socket_fd >= 0) | |
1882 | close_nointr_nofail(s->socket_fd); | |
1883 | s->socket_fd = fdset_remove(fds, fd); | |
1884 | } | |
1885 | } else | |
1886 | log_debug("Unknown serialization key '%s'", key); | |
1887 | ||
1888 | return 0; | |
1889 | } | |
1890 | ||
87f0e418 LP |
1891 | static UnitActiveState service_active_state(Unit *u) { |
1892 | assert(u); | |
5cb5a6ff | 1893 | |
acbb0225 | 1894 | return state_translation_table[SERVICE(u)->state]; |
034c6ed7 LP |
1895 | } |
1896 | ||
10a94420 LP |
1897 | static const char *service_sub_state_to_string(Unit *u) { |
1898 | assert(u); | |
1899 | ||
1900 | return service_state_to_string(SERVICE(u)->state); | |
1901 | } | |
1902 | ||
701cc384 LP |
1903 | static bool service_check_gc(Unit *u) { |
1904 | Service *s = SERVICE(u); | |
1905 | ||
1906 | assert(s); | |
1907 | ||
1908 | return !!s->sysv_path; | |
1909 | } | |
1910 | ||
1911 | static bool service_check_snapshot(Unit *u) { | |
1912 | Service *s = SERVICE(u); | |
1913 | ||
1914 | assert(s); | |
1915 | ||
1916 | return !s->got_socket_fd; | |
1917 | } | |
1918 | ||
87f0e418 LP |
1919 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
1920 | Service *s = SERVICE(u); | |
034c6ed7 | 1921 | bool success; |
5cb5a6ff LP |
1922 | |
1923 | assert(s); | |
034c6ed7 LP |
1924 | assert(pid >= 0); |
1925 | ||
cb8a8f78 | 1926 | success = is_clean_exit(code, status); |
034c6ed7 LP |
1927 | s->failure = s->failure || !success; |
1928 | ||
1929 | if (s->main_pid == pid) { | |
1930 | ||
1931 | exec_status_fill(&s->main_exec_status, pid, code, status); | |
1932 | s->main_pid = 0; | |
1933 | ||
7d55e835 | 1934 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_FINISH) { |
034c6ed7 LP |
1935 | assert(s->exec_command[SERVICE_EXEC_START]); |
1936 | s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status; | |
1937 | } | |
1938 | ||
9e2f7c11 | 1939 | log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status); |
034c6ed7 LP |
1940 | |
1941 | /* The service exited, so the service is officially | |
1942 | * gone. */ | |
1943 | ||
1944 | switch (s->state) { | |
1945 | ||
1946 | case SERVICE_START_POST: | |
1947 | case SERVICE_RELOAD: | |
1948 | case SERVICE_STOP: | |
1949 | /* Need to wait until the operation is | |
1950 | * done */ | |
1951 | break; | |
1952 | ||
7d55e835 LP |
1953 | case SERVICE_START: |
1954 | assert(s->type == SERVICE_FINISH); | |
1955 | ||
1956 | /* This was our main goal, so let's go on */ | |
1957 | if (success) | |
1958 | service_enter_start_post(s); | |
1959 | else | |
80876c20 | 1960 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
7d55e835 LP |
1961 | break; |
1962 | ||
034c6ed7 | 1963 | case SERVICE_RUNNING: |
80876c20 | 1964 | service_enter_running(s, success); |
034c6ed7 LP |
1965 | break; |
1966 | ||
1967 | case SERVICE_STOP_SIGTERM: | |
1968 | case SERVICE_STOP_SIGKILL: | |
1969 | ||
1970 | if (!control_pid_good(s)) | |
1971 | service_enter_stop_post(s, success); | |
5cb5a6ff | 1972 | |
034c6ed7 LP |
1973 | /* If there is still a control process, wait for that first */ |
1974 | break; | |
5cb5a6ff | 1975 | |
034c6ed7 LP |
1976 | default: |
1977 | assert_not_reached("Uh, main process died at wrong time."); | |
1978 | } | |
5cb5a6ff | 1979 | |
034c6ed7 | 1980 | } else if (s->control_pid == pid) { |
034c6ed7 | 1981 | |
a16e1123 LP |
1982 | if (s->control_command) |
1983 | exec_status_fill(&s->control_command->exec_status, pid, code, status); | |
1984 | ||
034c6ed7 LP |
1985 | s->control_pid = 0; |
1986 | ||
9e2f7c11 | 1987 | log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status); |
034c6ed7 LP |
1988 | |
1989 | /* If we are shutting things down anyway we | |
1990 | * don't care about failing commands. */ | |
1991 | ||
a16e1123 | 1992 | if (s->control_command && s->control_command->command_next && success) { |
034c6ed7 LP |
1993 | |
1994 | /* There is another command to * | |
1995 | * execute, so let's do that. */ | |
1996 | ||
9e2f7c11 | 1997 | log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state)); |
034c6ed7 LP |
1998 | service_run_next(s, success); |
1999 | ||
80876c20 | 2000 | } else { |
034c6ed7 LP |
2001 | /* No further commands for this step, so let's |
2002 | * figure out what to do next */ | |
2003 | ||
a16e1123 LP |
2004 | s->control_command = NULL; |
2005 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2006 | ||
9e2f7c11 | 2007 | log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state)); |
bd982a8b | 2008 | |
034c6ed7 LP |
2009 | switch (s->state) { |
2010 | ||
2011 | case SERVICE_START_PRE: | |
2012 | if (success) | |
2013 | service_enter_start(s); | |
2014 | else | |
80876c20 | 2015 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
034c6ed7 LP |
2016 | break; |
2017 | ||
2018 | case SERVICE_START: | |
2019 | assert(s->type == SERVICE_FORKING); | |
2020 | ||
2021 | /* Let's try to load the pid | |
2022 | * file here if we can. We | |
2023 | * ignore the return value, | |
2024 | * since the PID file might | |
2025 | * actually be created by a | |
2026 | * START_POST script */ | |
2027 | ||
2028 | if (success) { | |
2029 | if (s->pid_file) | |
2030 | service_load_pid_file(s); | |
2031 | ||
2032 | service_enter_start_post(s); | |
2033 | } else | |
80876c20 | 2034 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
034c6ed7 LP |
2035 | |
2036 | break; | |
2037 | ||
2038 | case SERVICE_START_POST: | |
2039 | if (success && s->pid_file && !s->main_pid_known) { | |
2040 | int r; | |
2041 | ||
2042 | /* Hmm, let's see if we can | |
2043 | * load the pid now after the | |
2044 | * start-post scripts got | |
2045 | * executed. */ | |
2046 | ||
2047 | if ((r = service_load_pid_file(s)) < 0) | |
9e2f7c11 | 2048 | log_warning("%s: failed to load PID file %s: %s", UNIT(s)->meta.id, s->pid_file, strerror(-r)); |
034c6ed7 LP |
2049 | } |
2050 | ||
2051 | /* Fall through */ | |
2052 | ||
2053 | case SERVICE_RELOAD: | |
80876c20 LP |
2054 | if (success) |
2055 | service_enter_running(s, true); | |
2056 | else | |
034c6ed7 LP |
2057 | service_enter_stop(s, false); |
2058 | ||
2059 | break; | |
2060 | ||
2061 | case SERVICE_STOP: | |
80876c20 | 2062 | service_enter_signal(s, SERVICE_STOP_SIGTERM, success); |
034c6ed7 LP |
2063 | break; |
2064 | ||
2065 | case SERVICE_STOP_SIGTERM: | |
2066 | case SERVICE_STOP_SIGKILL: | |
2067 | if (main_pid_good(s) <= 0) | |
2068 | service_enter_stop_post(s, success); | |
2069 | ||
2070 | /* If there is still a service | |
2071 | * process around, wait until | |
2072 | * that one quit, too */ | |
2073 | break; | |
2074 | ||
2075 | case SERVICE_STOP_POST: | |
2076 | case SERVICE_FINAL_SIGTERM: | |
2077 | case SERVICE_FINAL_SIGKILL: | |
2078 | service_enter_dead(s, success, true); | |
2079 | break; | |
2080 | ||
2081 | default: | |
2082 | assert_not_reached("Uh, control process died at wrong time."); | |
2083 | } | |
2084 | } | |
2085 | } else | |
2086 | assert_not_reached("Got SIGCHLD for unkown PID"); | |
2087 | } | |
2088 | ||
acbb0225 | 2089 | static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { |
87f0e418 | 2090 | Service *s = SERVICE(u); |
034c6ed7 LP |
2091 | |
2092 | assert(s); | |
2093 | assert(elapsed == 1); | |
2094 | ||
acbb0225 | 2095 | assert(w == &s->timer_watch); |
034c6ed7 LP |
2096 | |
2097 | switch (s->state) { | |
2098 | ||
2099 | case SERVICE_START_PRE: | |
2100 | case SERVICE_START: | |
9e2f7c11 | 2101 | log_warning("%s operation timed out. Terminating.", u->meta.id); |
80876c20 LP |
2102 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
2103 | break; | |
2104 | ||
034c6ed7 LP |
2105 | case SERVICE_START_POST: |
2106 | case SERVICE_RELOAD: | |
9e2f7c11 | 2107 | log_warning("%s operation timed out. Stopping.", u->meta.id); |
034c6ed7 LP |
2108 | service_enter_stop(s, false); |
2109 | break; | |
2110 | ||
2111 | case SERVICE_STOP: | |
9e2f7c11 | 2112 | log_warning("%s stopping timed out. Terminating.", u->meta.id); |
034c6ed7 LP |
2113 | service_enter_signal(s, SERVICE_STOP_SIGTERM, false); |
2114 | break; | |
2115 | ||
2116 | case SERVICE_STOP_SIGTERM: | |
9e2f7c11 | 2117 | log_warning("%s stopping timed out. Killing.", u->meta.id); |
034c6ed7 LP |
2118 | service_enter_signal(s, SERVICE_STOP_SIGKILL, false); |
2119 | break; | |
2120 | ||
2121 | case SERVICE_STOP_SIGKILL: | |
2122 | /* Uh, wie sent a SIGKILL and it is still not gone? | |
2123 | * Must be something we cannot kill, so let's just be | |
2124 | * weirded out and continue */ | |
2125 | ||
9e2f7c11 | 2126 | log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id); |
034c6ed7 LP |
2127 | service_enter_stop_post(s, false); |
2128 | break; | |
2129 | ||
2130 | case SERVICE_STOP_POST: | |
9e2f7c11 | 2131 | log_warning("%s stopping timed out (2). Terminating.", u->meta.id); |
034c6ed7 LP |
2132 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, false); |
2133 | break; | |
2134 | ||
2135 | case SERVICE_FINAL_SIGTERM: | |
9e2f7c11 | 2136 | log_warning("%s stopping timed out (2). Killing.", u->meta.id); |
034c6ed7 LP |
2137 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, false); |
2138 | break; | |
2139 | ||
2140 | case SERVICE_FINAL_SIGKILL: | |
9e2f7c11 | 2141 | log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", u->meta.id); |
034c6ed7 LP |
2142 | service_enter_dead(s, false, true); |
2143 | break; | |
2144 | ||
2145 | case SERVICE_AUTO_RESTART: | |
9e2f7c11 | 2146 | log_debug("%s holdoff time over, scheduling restart.", u->meta.id); |
034c6ed7 LP |
2147 | service_enter_restart(s); |
2148 | break; | |
2149 | ||
2150 | default: | |
2151 | assert_not_reached("Timeout at wrong time."); | |
2152 | } | |
5cb5a6ff LP |
2153 | } |
2154 | ||
8e274523 LP |
2155 | static void service_cgroup_notify_event(Unit *u) { |
2156 | Service *s = SERVICE(u); | |
2157 | ||
2158 | assert(u); | |
2159 | ||
9e2f7c11 | 2160 | log_debug("%s: cgroup is empty", u->meta.id); |
8e274523 LP |
2161 | |
2162 | switch (s->state) { | |
2163 | ||
2164 | /* Waiting for SIGCHLD is usually more interesting, | |
2165 | * because it includes return codes/signals. Which is | |
2166 | * why we ignore the cgroup events for most cases, | |
2167 | * except when we don't know pid which to expect the | |
2168 | * SIGCHLD for. */ | |
2169 | ||
2170 | case SERVICE_RUNNING: | |
80876c20 | 2171 | service_enter_running(s, true); |
8e274523 LP |
2172 | break; |
2173 | ||
2174 | default: | |
2175 | ; | |
2176 | } | |
2177 | } | |
2178 | ||
2c4104f0 | 2179 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
2180 | char **p; |
2181 | unsigned i; | |
2182 | DIR *d = NULL; | |
2183 | char *path = NULL, *fpath = NULL, *name = NULL; | |
2184 | int r; | |
2185 | ||
2186 | assert(m); | |
2187 | ||
5e177ece | 2188 | STRV_FOREACH(p, m->sysvrcnd_path) |
09cd1ab1 | 2189 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
2c4104f0 LP |
2190 | struct dirent *de; |
2191 | ||
2192 | free(path); | |
2193 | path = NULL; | |
09cd1ab1 | 2194 | if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) { |
2c4104f0 LP |
2195 | r = -ENOMEM; |
2196 | goto finish; | |
2197 | } | |
2198 | ||
2199 | if (d) | |
2200 | closedir(d); | |
2201 | ||
2202 | if (!(d = opendir(path))) { | |
2203 | if (errno != ENOENT) | |
2204 | log_warning("opendir() failed on %s: %s", path, strerror(errno)); | |
2205 | ||
2206 | continue; | |
2207 | } | |
2208 | ||
2209 | while ((de = readdir(d))) { | |
6542952f | 2210 | Unit *service; |
db06e3b6 | 2211 | int a, b; |
2c4104f0 LP |
2212 | |
2213 | if (ignore_file(de->d_name)) | |
2214 | continue; | |
2215 | ||
2216 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
2217 | continue; | |
2218 | ||
2219 | if (strlen(de->d_name) < 4) | |
2220 | continue; | |
2221 | ||
db06e3b6 LP |
2222 | a = undecchar(de->d_name[1]); |
2223 | b = undecchar(de->d_name[2]); | |
2224 | ||
2225 | if (a < 0 || b < 0) | |
2226 | continue; | |
2227 | ||
2c4104f0 LP |
2228 | free(fpath); |
2229 | fpath = NULL; | |
09cd1ab1 | 2230 | if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) { |
2c4104f0 LP |
2231 | r = -ENOMEM; |
2232 | goto finish; | |
2233 | } | |
2234 | ||
2235 | if (access(fpath, X_OK) < 0) { | |
2236 | ||
2237 | if (errno != ENOENT) | |
2238 | log_warning("access() failed on %s: %s", fpath, strerror(errno)); | |
2239 | ||
2240 | continue; | |
2241 | } | |
2242 | ||
2243 | free(name); | |
b7ccee3c | 2244 | if (!(name = sysv_translate_name(de->d_name + 3))) { |
2c4104f0 LP |
2245 | r = -ENOMEM; |
2246 | goto finish; | |
2247 | } | |
2248 | ||
fbe9f3a9 LP |
2249 | if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) { |
2250 | log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); | |
2251 | continue; | |
2252 | } | |
2c4104f0 | 2253 | |
09cd1ab1 LP |
2254 | if (de->d_name[0] == 'S' && |
2255 | (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_BASIC)) | |
fbe9f3a9 LP |
2256 | SERVICE(service)->sysv_start_priority = |
2257 | MAX(a*10 + b, SERVICE(service)->sysv_start_priority); | |
db06e3b6 LP |
2258 | |
2259 | manager_dispatch_load_queue(m); | |
2260 | service = unit_follow_merge(service); | |
2261 | ||
2c4104f0 | 2262 | if (de->d_name[0] == 'S') { |
6542952f LP |
2263 | Unit *runlevel_target; |
2264 | ||
09cd1ab1 | 2265 | if ((r = manager_load_unit(m, rcnd_table[i].target, NULL, &runlevel_target)) < 0) |
6542952f LP |
2266 | goto finish; |
2267 | ||
2268 | if ((r = unit_add_dependency(runlevel_target, UNIT_WANTS, service, true)) < 0) | |
2c4104f0 LP |
2269 | goto finish; |
2270 | ||
a0fcc5f6 | 2271 | if ((r = unit_add_dependency(service, UNIT_BEFORE, runlevel_target, true)) < 0) |
2c4104f0 | 2272 | goto finish; |
23a177ef | 2273 | |
09cd1ab1 | 2274 | } else if (de->d_name[0] == 'K' && rcnd_table[i].type == RUNLEVEL_DOWN) { |
6542952f LP |
2275 | Unit *shutdown_target; |
2276 | ||
23a177ef LP |
2277 | /* We honour K links only for |
2278 | * halt/reboot. For the normal | |
2279 | * runlevels we assume the | |
2280 | * stop jobs will be | |
2281 | * implicitly added by the | |
6542952f LP |
2282 | * core logic. Also, we don't |
2283 | * really distuingish here | |
2284 | * between the runlevels 0 and | |
2285 | * 6 and just add them to the | |
2286 | * special shutdown target. */ | |
2287 | ||
2288 | if ((r = manager_load_unit(m, SPECIAL_SHUTDOWN_TARGET, NULL, &shutdown_target)) < 0) | |
2289 | goto finish; | |
23a177ef | 2290 | |
a0fcc5f6 | 2291 | if ((r = unit_add_dependency(service, UNIT_CONFLICTS, shutdown_target, true)) < 0) |
2c4104f0 LP |
2292 | goto finish; |
2293 | ||
a0fcc5f6 | 2294 | if ((r = unit_add_dependency(service, UNIT_BEFORE, shutdown_target, true)) < 0) |
2c4104f0 LP |
2295 | goto finish; |
2296 | } | |
2297 | } | |
2298 | } | |
2299 | ||
2300 | r = 0; | |
2301 | ||
2302 | finish: | |
2303 | free(path); | |
2304 | free(fpath); | |
2305 | free(name); | |
fbe9f3a9 LP |
2306 | |
2307 | if (d) | |
2308 | closedir(d); | |
2c4104f0 LP |
2309 | |
2310 | return r; | |
2311 | } | |
2312 | ||
05e343b7 LP |
2313 | static void service_bus_name_owner_change( |
2314 | Unit *u, | |
2315 | const char *name, | |
2316 | const char *old_owner, | |
2317 | const char *new_owner) { | |
2318 | ||
2319 | Service *s = SERVICE(u); | |
2320 | ||
2321 | assert(s); | |
2322 | assert(name); | |
2323 | ||
2324 | assert(streq(s->bus_name, name)); | |
2325 | assert(old_owner || new_owner); | |
2326 | ||
2327 | if (old_owner && new_owner) | |
2328 | log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner); | |
2329 | else if (old_owner) | |
2330 | log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner); | |
2331 | else | |
2332 | log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner); | |
2333 | ||
2334 | s->bus_name_good = !!new_owner; | |
2335 | ||
2336 | if (s->type == SERVICE_DBUS) { | |
2337 | ||
2338 | /* service_enter_running() will figure out what to | |
2339 | * do */ | |
2340 | if (s->state == SERVICE_RUNNING) | |
2341 | service_enter_running(s, true); | |
2342 | else if (s->state == SERVICE_START && new_owner) | |
2343 | service_enter_start_post(s); | |
2344 | ||
2345 | } else if (new_owner && | |
2346 | s->main_pid <= 0 && | |
2347 | (s->state == SERVICE_START || | |
2348 | s->state == SERVICE_START_POST || | |
2349 | s->state == SERVICE_RUNNING || | |
2350 | s->state == SERVICE_RELOAD)) { | |
2351 | ||
2352 | /* Try to acquire PID from bus service */ | |
2353 | log_debug("Trying to acquire PID from D-Bus name..."); | |
2354 | ||
2355 | bus_query_pid(u->meta.manager, name); | |
2356 | } | |
2357 | } | |
2358 | ||
2359 | static void service_bus_query_pid_done( | |
2360 | Unit *u, | |
2361 | const char *name, | |
2362 | pid_t pid) { | |
2363 | ||
2364 | Service *s = SERVICE(u); | |
2365 | ||
2366 | assert(s); | |
2367 | assert(name); | |
2368 | ||
2369 | log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid); | |
2370 | ||
2371 | if (s->main_pid <= 0 && | |
2372 | (s->state == SERVICE_START || | |
2373 | s->state == SERVICE_START_POST || | |
2374 | s->state == SERVICE_RUNNING || | |
2375 | s->state == SERVICE_RELOAD)) | |
2376 | s->main_pid = pid; | |
2377 | } | |
2378 | ||
4f2d528d LP |
2379 | int service_set_socket_fd(Service *s, int fd) { |
2380 | assert(s); | |
2381 | assert(fd >= 0); | |
2382 | ||
2383 | /* This is called by the socket code when instantiating a new | |
2384 | * service for a stream socket and the socket needs to be | |
2385 | * configured. */ | |
2386 | ||
2387 | if (UNIT(s)->meta.load_state != UNIT_LOADED) | |
2388 | return -EINVAL; | |
2389 | ||
2390 | if (s->socket_fd >= 0) | |
2391 | return -EBUSY; | |
2392 | ||
2393 | if (s->state != SERVICE_DEAD) | |
2394 | return -EAGAIN; | |
2395 | ||
2396 | s->socket_fd = fd; | |
701cc384 | 2397 | s->got_socket_fd = true; |
4f2d528d LP |
2398 | return 0; |
2399 | } | |
2400 | ||
94f04347 LP |
2401 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
2402 | [SERVICE_DEAD] = "dead", | |
2403 | [SERVICE_START_PRE] = "start-pre", | |
2404 | [SERVICE_START] = "start", | |
2405 | [SERVICE_START_POST] = "start-post", | |
2406 | [SERVICE_RUNNING] = "running", | |
80876c20 | 2407 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
2408 | [SERVICE_RELOAD] = "reload", |
2409 | [SERVICE_STOP] = "stop", | |
2410 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
2411 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
2412 | [SERVICE_STOP_POST] = "stop-post", | |
2413 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
2414 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
2415 | [SERVICE_MAINTAINANCE] = "maintainance", | |
2416 | [SERVICE_AUTO_RESTART] = "auto-restart", | |
2417 | }; | |
2418 | ||
2419 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
2420 | ||
2421 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
2422 | [SERVICE_ONCE] = "once", | |
2423 | [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success", | |
40531a55 | 2424 | [SERVICE_RESTART_ALWAYS] = "restart-always", |
94f04347 LP |
2425 | }; |
2426 | ||
2427 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
2428 | ||
2429 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
2430 | [SERVICE_FORKING] = "forking", | |
2431 | [SERVICE_SIMPLE] = "simple", | |
05e343b7 LP |
2432 | [SERVICE_FINISH] = "finish", |
2433 | [SERVICE_DBUS] = "dbus" | |
94f04347 LP |
2434 | }; |
2435 | ||
2436 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
2437 | ||
e537352b | 2438 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
2439 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
2440 | [SERVICE_EXEC_START] = "ExecStart", | |
2441 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
2442 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
2443 | [SERVICE_EXEC_STOP] = "ExecStop", | |
2444 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
2445 | }; | |
2446 | ||
2447 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
2448 | ||
87f0e418 | 2449 | const UnitVTable service_vtable = { |
5cb5a6ff LP |
2450 | .suffix = ".service", |
2451 | ||
034c6ed7 LP |
2452 | .init = service_init, |
2453 | .done = service_done, | |
a16e1123 LP |
2454 | .load = service_load, |
2455 | ||
2456 | .coldplug = service_coldplug, | |
034c6ed7 | 2457 | |
5cb5a6ff LP |
2458 | .dump = service_dump, |
2459 | ||
2460 | .start = service_start, | |
2461 | .stop = service_stop, | |
2462 | .reload = service_reload, | |
2463 | ||
034c6ed7 LP |
2464 | .can_reload = service_can_reload, |
2465 | ||
a16e1123 LP |
2466 | .serialize = service_serialize, |
2467 | .deserialize_item = service_deserialize_item, | |
2468 | ||
5cb5a6ff | 2469 | .active_state = service_active_state, |
10a94420 | 2470 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 2471 | |
701cc384 LP |
2472 | .check_gc = service_check_gc, |
2473 | .check_snapshot = service_check_snapshot, | |
2474 | ||
034c6ed7 LP |
2475 | .sigchld_event = service_sigchld_event, |
2476 | .timer_event = service_timer_event, | |
2c4104f0 | 2477 | |
8e274523 LP |
2478 | .cgroup_notify_empty = service_cgroup_notify_event, |
2479 | ||
05e343b7 LP |
2480 | .bus_name_owner_change = service_bus_name_owner_change, |
2481 | .bus_query_pid_done = service_bus_query_pid_done, | |
2482 | ||
4139c1b2 LP |
2483 | .bus_message_handler = bus_service_message_handler, |
2484 | ||
2c4104f0 | 2485 | .enumerate = service_enumerate |
5cb5a6ff | 2486 | }; |