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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
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 | 24 | #include <unistd.h> |
5cb5a6ff | 25 | |
b5efdb8a | 26 | #include "alloc-util.h" |
574634bc | 27 | #include "async.h" |
4f5dd394 LP |
28 | #include "bus-error.h" |
29 | #include "bus-kernel.h" | |
30 | #include "bus-util.h" | |
4139c1b2 | 31 | #include "dbus-service.h" |
f6a6225e | 32 | #include "def.h" |
4d1a6904 | 33 | #include "env-util.h" |
4f5dd394 LP |
34 | #include "escape.h" |
35 | #include "exit-status.h" | |
3ffd4af2 | 36 | #include "fd-util.h" |
a5c32cff | 37 | #include "fileio.h" |
6482f626 | 38 | #include "formats-util.h" |
f4f15635 | 39 | #include "fs-util.h" |
4f5dd394 LP |
40 | #include "load-dropin.h" |
41 | #include "load-fragment.h" | |
42 | #include "log.h" | |
43 | #include "manager.h" | |
6bedfcbb | 44 | #include "parse-util.h" |
4f5dd394 | 45 | #include "path-util.h" |
0b452006 | 46 | #include "process-util.h" |
3ffd4af2 | 47 | #include "service.h" |
24882e06 | 48 | #include "signal-util.h" |
4f5dd394 | 49 | #include "special.h" |
8b43440b | 50 | #include "string-table.h" |
07630cea | 51 | #include "string-util.h" |
4f5dd394 LP |
52 | #include "strv.h" |
53 | #include "unit-name.h" | |
54 | #include "unit-printf.h" | |
55 | #include "unit.h" | |
56 | #include "utf8.h" | |
57 | #include "util.h" | |
034c6ed7 | 58 | |
acbb0225 | 59 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
60 | [SERVICE_DEAD] = UNIT_INACTIVE, |
61 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
62 | [SERVICE_START] = UNIT_ACTIVATING, | |
63 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
64 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 65 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 66 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 67 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
db2cb23b | 68 | [SERVICE_STOP_SIGABRT] = UNIT_DEACTIVATING, |
87f0e418 LP |
69 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
70 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
71 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
72 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
73 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 74 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 75 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 76 | }; |
5cb5a6ff | 77 | |
e056b01d LP |
78 | /* For Type=idle we never want to delay any other jobs, hence we |
79 | * consider idle jobs active as soon as we start working on them */ | |
80 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
81 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
82 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
83 | [SERVICE_START] = UNIT_ACTIVE, | |
84 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
85 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
86 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
87 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
88 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
db2cb23b | 89 | [SERVICE_STOP_SIGABRT] = UNIT_DEACTIVATING, |
e056b01d LP |
90 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
91 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
92 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
93 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
94 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
95 | [SERVICE_FAILED] = UNIT_FAILED, | |
96 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
97 | }; | |
98 | ||
718db961 LP |
99 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
100 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
101 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
102 | ||
842129f5 | 103 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 104 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 105 | |
a16e1123 LP |
106 | static void service_init(Unit *u) { |
107 | Service *s = SERVICE(u); | |
108 | ||
109 | assert(u); | |
ac155bb8 | 110 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 111 | |
1f19a534 OS |
112 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
113 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
114 | s->restart_usec = u->manager->default_restart_usec; | |
0b86feac | 115 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 116 | s->socket_fd = -1; |
e44da745 | 117 | s->bus_endpoint_fd = -1; |
a34ceba6 | 118 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 119 | s->guess_main_pid = true; |
a16e1123 | 120 | |
085afe36 | 121 | RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst); |
a16e1123 LP |
122 | |
123 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
124 | } | |
125 | ||
5e94833f LP |
126 | static void service_unwatch_control_pid(Service *s) { |
127 | assert(s); | |
128 | ||
129 | if (s->control_pid <= 0) | |
130 | return; | |
131 | ||
132 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
133 | s->control_pid = 0; | |
134 | } | |
135 | ||
136 | static void service_unwatch_main_pid(Service *s) { | |
137 | assert(s); | |
138 | ||
139 | if (s->main_pid <= 0) | |
140 | return; | |
141 | ||
142 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
143 | s->main_pid = 0; | |
144 | } | |
145 | ||
3e52541e MS |
146 | static void service_unwatch_pid_file(Service *s) { |
147 | if (!s->pid_file_pathspec) | |
148 | return; | |
149 | ||
f2341e0a | 150 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 151 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 152 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 153 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
154 | } |
155 | ||
5925dd3c | 156 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
157 | pid_t ppid; |
158 | ||
5925dd3c LP |
159 | assert(s); |
160 | ||
161 | if (pid <= 1) | |
162 | return -EINVAL; | |
163 | ||
164 | if (pid == getpid()) | |
165 | return -EINVAL; | |
166 | ||
7400b9d2 LP |
167 | if (s->main_pid == pid && s->main_pid_known) |
168 | return 0; | |
169 | ||
170 | if (s->main_pid != pid) { | |
171 | service_unwatch_main_pid(s); | |
172 | exec_status_start(&s->main_exec_status, pid); | |
173 | } | |
41efeaec | 174 | |
6dfa5494 LP |
175 | s->main_pid = pid; |
176 | s->main_pid_known = true; | |
177 | ||
6bc73acb | 178 | if (get_process_ppid(pid, &ppid) >= 0 && ppid != getpid()) { |
f2341e0a | 179 | log_unit_warning(UNIT(s), "Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", pid); |
6dfa5494 LP |
180 | s->main_pid_alien = true; |
181 | } else | |
182 | s->main_pid_alien = false; | |
5925dd3c LP |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
4f2d528d LP |
187 | static void service_close_socket_fd(Service *s) { |
188 | assert(s); | |
189 | ||
574634bc | 190 | s->socket_fd = asynchronous_close(s->socket_fd); |
4f2d528d LP |
191 | } |
192 | ||
6cf6bbc2 LP |
193 | static void service_connection_unref(Service *s) { |
194 | assert(s); | |
195 | ||
9444b1f2 | 196 | if (!UNIT_ISSET(s->accept_socket)) |
6cf6bbc2 LP |
197 | return; |
198 | ||
57020a3a LP |
199 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
200 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
201 | } |
202 | ||
a6927d7f MO |
203 | static void service_stop_watchdog(Service *s) { |
204 | assert(s); | |
205 | ||
718db961 | 206 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 207 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
208 | } |
209 | ||
842129f5 | 210 | static void service_start_watchdog(Service *s) { |
bb242b7b MO |
211 | int r; |
212 | ||
213 | assert(s); | |
214 | ||
842129f5 | 215 | if (s->watchdog_usec <= 0) |
bb242b7b MO |
216 | return; |
217 | ||
718db961 LP |
218 | if (s->watchdog_event_source) { |
219 | r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec); | |
220 | if (r < 0) { | |
f2341e0a | 221 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
222 | return; |
223 | } | |
224 | ||
842129f5 | 225 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 226 | } else { |
6a0f1f6d LP |
227 | r = sd_event_add_time( |
228 | UNIT(s)->manager->event, | |
229 | &s->watchdog_event_source, | |
230 | CLOCK_MONOTONIC, | |
231 | s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, | |
232 | service_dispatch_watchdog, s); | |
c4ef3317 | 233 | if (r < 0) { |
f2341e0a | 234 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
235 | return; |
236 | } | |
237 | ||
7dfbe2e3 TG |
238 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
239 | ||
c4ef3317 LP |
240 | /* Let's process everything else which might be a sign |
241 | * of living before we consider a service died. */ | |
242 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
243 | } | |
718db961 | 244 | |
bb242b7b | 245 | if (r < 0) |
f2341e0a | 246 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
247 | } |
248 | ||
a6927d7f MO |
249 | static void service_reset_watchdog(Service *s) { |
250 | assert(s); | |
251 | ||
252 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 253 | service_start_watchdog(s); |
a6927d7f MO |
254 | } |
255 | ||
a354329f LP |
256 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
257 | ||
258 | if (!fs) | |
259 | return; | |
260 | ||
261 | if (fs->service) { | |
262 | assert(fs->service->n_fd_store > 0); | |
263 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
264 | fs->service->n_fd_store--; | |
265 | } | |
266 | ||
267 | if (fs->event_source) { | |
268 | sd_event_source_set_enabled(fs->event_source, SD_EVENT_OFF); | |
269 | sd_event_source_unref(fs->event_source); | |
270 | } | |
271 | ||
8dd4c05b | 272 | free(fs->fdname); |
a354329f LP |
273 | safe_close(fs->fd); |
274 | free(fs); | |
275 | } | |
276 | ||
277 | static void service_release_resources(Unit *u) { | |
278 | Service *s = SERVICE(u); | |
279 | ||
280 | assert(s); | |
281 | ||
a34ceba6 | 282 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
283 | return; |
284 | ||
f2341e0a | 285 | log_unit_debug(u, "Releasing all resources."); |
a354329f | 286 | |
a34ceba6 LP |
287 | s->stdin_fd = safe_close(s->stdin_fd); |
288 | s->stdout_fd = safe_close(s->stdout_fd); | |
289 | s->stderr_fd = safe_close(s->stderr_fd); | |
290 | ||
a354329f LP |
291 | while (s->fd_store) |
292 | service_fd_store_unlink(s->fd_store); | |
293 | ||
294 | assert(s->n_fd_store == 0); | |
295 | } | |
296 | ||
87f0e418 LP |
297 | static void service_done(Unit *u) { |
298 | Service *s = SERVICE(u); | |
44d8db9e LP |
299 | |
300 | assert(s); | |
301 | ||
a1e58e8e LP |
302 | s->pid_file = mfree(s->pid_file); |
303 | s->status_text = mfree(s->status_text); | |
304 | s->reboot_arg = mfree(s->reboot_arg); | |
efe6e7d3 | 305 | |
613b411c | 306 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 307 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 308 | s->control_command = NULL; |
867b3b7d | 309 | s->main_command = NULL; |
44d8db9e | 310 | |
37520c1b LP |
311 | exit_status_set_free(&s->restart_prevent_status); |
312 | exit_status_set_free(&s->restart_force_status); | |
313 | exit_status_set_free(&s->success_status); | |
96342de6 | 314 | |
44d8db9e LP |
315 | /* This will leak a process, but at least no memory or any of |
316 | * our resources */ | |
5e94833f LP |
317 | service_unwatch_main_pid(s); |
318 | service_unwatch_control_pid(s); | |
3e52541e | 319 | service_unwatch_pid_file(s); |
44d8db9e | 320 | |
05e343b7 | 321 | if (s->bus_name) { |
ac155bb8 | 322 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 323 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
324 | } |
325 | ||
e44da745 | 326 | s->bus_endpoint_fd = safe_close(s->bus_endpoint_fd); |
4f2d528d | 327 | service_close_socket_fd(s); |
6cf6bbc2 | 328 | service_connection_unref(s); |
4f2d528d | 329 | |
57020a3a | 330 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 331 | |
bb242b7b MO |
332 | service_stop_watchdog(s); |
333 | ||
718db961 | 334 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
a354329f LP |
335 | |
336 | service_release_resources(u); | |
718db961 LP |
337 | } |
338 | ||
2339fc93 LP |
339 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
340 | ServiceFDStore *fs = userdata; | |
341 | ||
342 | assert(e); | |
343 | assert(fs); | |
344 | ||
345 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
346 | service_fd_store_unlink(fs); | |
347 | return 0; | |
348 | } | |
349 | ||
8dd4c05b | 350 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
351 | ServiceFDStore *fs; |
352 | int r; | |
353 | ||
354 | assert(s); | |
355 | assert(fd >= 0); | |
356 | ||
357 | if (s->n_fd_store >= s->n_fd_store_max) | |
358 | return 0; | |
359 | ||
360 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
361 | r = same_fd(fs->fd, fd); | |
362 | if (r < 0) | |
363 | return r; | |
364 | if (r > 0) { | |
365 | /* Already included */ | |
366 | safe_close(fd); | |
367 | return 1; | |
368 | } | |
369 | } | |
370 | ||
371 | fs = new0(ServiceFDStore, 1); | |
372 | if (!fs) | |
373 | return -ENOMEM; | |
374 | ||
375 | fs->fd = fd; | |
376 | fs->service = s; | |
8dd4c05b | 377 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 378 | if (!fs->fdname) { |
379 | free(fs); | |
8dd4c05b | 380 | return -ENOMEM; |
17dec0f7 | 381 | } |
2339fc93 LP |
382 | |
383 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
384 | if (r < 0) { | |
8dd4c05b | 385 | free(fs->fdname); |
2339fc93 LP |
386 | free(fs); |
387 | return r; | |
388 | } | |
389 | ||
7dfbe2e3 TG |
390 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); |
391 | ||
2339fc93 LP |
392 | LIST_PREPEND(fd_store, s->fd_store, fs); |
393 | s->n_fd_store++; | |
394 | ||
395 | return 1; | |
396 | } | |
397 | ||
8dd4c05b | 398 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
399 | int r; |
400 | ||
401 | assert(s); | |
402 | ||
403 | if (fdset_size(fds) <= 0) | |
404 | return 0; | |
405 | ||
406 | while (s->n_fd_store < s->n_fd_store_max) { | |
407 | _cleanup_close_ int fd = -1; | |
408 | ||
409 | fd = fdset_steal_first(fds); | |
410 | if (fd < 0) | |
411 | break; | |
412 | ||
8dd4c05b | 413 | r = service_add_fd_store(s, fd, name); |
2339fc93 | 414 | if (r < 0) |
f2341e0a | 415 | return log_unit_error_errno(UNIT(s), r, "Couldn't add fd to fd store: %m"); |
2339fc93 | 416 | if (r > 0) { |
f2341e0a | 417 | log_unit_debug(UNIT(s), "Added fd to fd store."); |
2339fc93 LP |
418 | fd = -1; |
419 | } | |
420 | } | |
421 | ||
422 | if (fdset_size(fds) > 0) | |
4b172825 | 423 | log_unit_warning(UNIT(s), "Tried to store more fds than FileDescriptorStoreMax=%u allows, closing remaining.", s->n_fd_store_max); |
2339fc93 LP |
424 | |
425 | return 0; | |
426 | } | |
427 | ||
718db961 LP |
428 | static int service_arm_timer(Service *s, usec_t usec) { |
429 | int r; | |
430 | ||
431 | assert(s); | |
432 | ||
718db961 LP |
433 | if (s->timer_event_source) { |
434 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
435 | if (r < 0) | |
436 | return r; | |
437 | ||
438 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
439 | } | |
440 | ||
7dfbe2e3 | 441 | r = sd_event_add_time( |
6a0f1f6d LP |
442 | UNIT(s)->manager->event, |
443 | &s->timer_event_source, | |
444 | CLOCK_MONOTONIC, | |
445 | now(CLOCK_MONOTONIC) + usec, 0, | |
446 | service_dispatch_timer, s); | |
7dfbe2e3 TG |
447 | if (r < 0) |
448 | return r; | |
449 | ||
450 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
451 | ||
452 | return 0; | |
44d8db9e LP |
453 | } |
454 | ||
243b1432 LP |
455 | static int service_verify(Service *s) { |
456 | assert(s); | |
457 | ||
1124fe6f | 458 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
459 | return 0; |
460 | ||
96fb8242 | 461 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) { |
f2341e0a | 462 | log_unit_error(UNIT(s), "Service lacks both ExecStart= and ExecStop= setting. Refusing."); |
243b1432 LP |
463 | return -EINVAL; |
464 | } | |
465 | ||
96fb8242 | 466 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 467 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
96fb8242 LP |
468 | return -EINVAL; |
469 | } | |
470 | ||
471 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START]) { | |
f2341e0a | 472 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for RemainAfterExit=yes services. Refusing."); |
96fb8242 LP |
473 | return -EINVAL; |
474 | } | |
475 | ||
476 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 477 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6cf6bbc2 LP |
478 | return -EINVAL; |
479 | } | |
480 | ||
b0693d30 | 481 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
f2341e0a | 482 | log_unit_error(UNIT(s), "Service has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing."); |
37520c1b LP |
483 | return -EINVAL; |
484 | } | |
485 | ||
55ebf98c | 486 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 487 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
b0693d30 MW |
488 | return -EINVAL; |
489 | } | |
490 | ||
05e343b7 | 491 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 492 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
4d0e5dbd LP |
493 | return -EINVAL; |
494 | } | |
495 | ||
7e2668c6 | 496 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 497 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 498 | |
ebc2259d | 499 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
f2341e0a | 500 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
05e343b7 LP |
501 | return -EINVAL; |
502 | } | |
503 | ||
6b7e5923 PS |
504 | if (s->usb_function_descriptors && !s->usb_function_strings) |
505 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
506 | ||
507 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
508 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
509 | ||
243b1432 LP |
510 | return 0; |
511 | } | |
512 | ||
a40eb732 LP |
513 | static int service_add_default_dependencies(Service *s) { |
514 | int r; | |
515 | ||
516 | assert(s); | |
517 | ||
45f06b34 LP |
518 | if (!UNIT(s)->default_dependencies) |
519 | return 0; | |
520 | ||
a40eb732 LP |
521 | /* Add a number of automatic dependencies useful for the |
522 | * majority of services. */ | |
523 | ||
cb4c247d LP |
524 | if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) { |
525 | /* First, pull in the really early boot stuff, and | |
526 | * require it, so that we fail if we can't acquire | |
527 | * it. */ | |
528 | ||
529 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
530 | if (r < 0) | |
531 | return r; | |
532 | } else { | |
533 | ||
534 | /* In the --user instance there's no sysinit.target, | |
535 | * in that case require basic.target instead. */ | |
536 | ||
537 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); | |
538 | if (r < 0) | |
539 | return r; | |
540 | } | |
541 | ||
542 | /* Second, if the rest of the base system is in the same | |
543 | * transaction, order us after it, but do not pull it in or | |
544 | * even require it. */ | |
545 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true); | |
fccd44ec KS |
546 | if (r < 0) |
547 | return r; | |
a40eb732 | 548 | |
cb4c247d | 549 | /* Third, add us in for normal shutdown. */ |
8545f7ce | 550 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
551 | } |
552 | ||
4dfc092a LP |
553 | static void service_fix_output(Service *s) { |
554 | assert(s); | |
555 | ||
556 | /* If nothing has been explicitly configured, patch default | |
557 | * output in. If input is socket/tty we avoid this however, | |
558 | * since in that case we want output to default to the same | |
559 | * place as we read input from. */ | |
560 | ||
561 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
562 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
563 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 564 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
565 | |
566 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
567 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 568 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
569 | } |
570 | ||
45f06b34 LP |
571 | static int service_setup_bus_name(Service *s) { |
572 | int r; | |
573 | ||
574 | assert(s); | |
575 | ||
576 | if (!s->bus_name) | |
577 | return 0; | |
578 | ||
579 | if (is_kdbus_available()) { | |
580 | const char *n; | |
581 | ||
582 | n = strjoina(s->bus_name, ".busname"); | |
583 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, n, NULL, true); | |
584 | if (r < 0) | |
585 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency to .busname unit: %m"); | |
586 | ||
587 | } else { | |
588 | /* If kdbus is not available, we know the dbus socket is required, hence pull it in, and require it */ | |
589 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true); | |
590 | if (r < 0) | |
591 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
592 | } | |
593 | ||
594 | /* Regardless if kdbus is used or not, we always want to be ordered against dbus.socket if both are in the transaction. */ | |
595 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, NULL, true); | |
596 | if (r < 0) | |
597 | return log_unit_error_errno(UNIT(s), r, "Failed to add depdendency on " SPECIAL_DBUS_SOCKET ": %m"); | |
598 | ||
599 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
600 | if (r == -EEXIST) | |
601 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
602 | if (r < 0) | |
603 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
8545f7ce LP |
608 | static int service_add_extras(Service *s) { |
609 | int r; | |
610 | ||
611 | assert(s); | |
612 | ||
613 | if (s->type == _SERVICE_TYPE_INVALID) { | |
614 | /* Figure out a type automatically */ | |
615 | if (s->bus_name) | |
616 | s->type = SERVICE_DBUS; | |
617 | else if (s->exec_command[SERVICE_EXEC_START]) | |
618 | s->type = SERVICE_SIMPLE; | |
619 | else | |
620 | s->type = SERVICE_ONESHOT; | |
621 | } | |
622 | ||
623 | /* Oneshot services have disabled start timeout by default */ | |
624 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
625 | s->timeout_start_usec = 0; | |
626 | ||
627 | service_fix_output(s); | |
628 | ||
629 | r = unit_patch_contexts(UNIT(s)); | |
630 | if (r < 0) | |
631 | return r; | |
632 | ||
633 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
634 | if (r < 0) | |
635 | return r; | |
636 | ||
d79200e2 | 637 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
638 | if (r < 0) |
639 | return r; | |
640 | ||
641 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
642 | s->notify_access = NOTIFY_MAIN; | |
643 | ||
644 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) | |
645 | s->notify_access = NOTIFY_MAIN; | |
646 | ||
45f06b34 LP |
647 | r = service_add_default_dependencies(s); |
648 | if (r < 0) | |
649 | return r; | |
8545f7ce | 650 | |
45f06b34 LP |
651 | r = service_setup_bus_name(s); |
652 | if (r < 0) | |
653 | return r; | |
8545f7ce LP |
654 | |
655 | return 0; | |
656 | } | |
657 | ||
e537352b | 658 | static int service_load(Unit *u) { |
e537352b | 659 | Service *s = SERVICE(u); |
8bb2d17d | 660 | int r; |
e537352b LP |
661 | |
662 | assert(s); | |
1e2e8133 | 663 | |
5cb5a6ff | 664 | /* Load a .service file */ |
c2756a68 LP |
665 | r = unit_load_fragment(u); |
666 | if (r < 0) | |
5cb5a6ff LP |
667 | return r; |
668 | ||
23a177ef | 669 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 670 | if (u->load_state == UNIT_STUB) |
23a177ef | 671 | return -ENOENT; |
034c6ed7 | 672 | |
23a177ef | 673 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 674 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
675 | |
676 | /* We were able to load something, then let's add in | |
677 | * the dropin directories. */ | |
678 | r = unit_load_dropin(u); | |
679 | if (r < 0) | |
680 | return r; | |
681 | ||
8545f7ce LP |
682 | /* This is a new unit? Then let's add in some |
683 | * extras */ | |
684 | r = service_add_extras(s); | |
598459ce LP |
685 | if (r < 0) |
686 | return r; | |
8e274523 LP |
687 | } |
688 | ||
243b1432 | 689 | return service_verify(s); |
034c6ed7 LP |
690 | } |
691 | ||
87f0e418 | 692 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 693 | ServiceExecCommand c; |
87f0e418 | 694 | Service *s = SERVICE(u); |
47be870b | 695 | const char *prefix2; |
5cb5a6ff LP |
696 | |
697 | assert(s); | |
698 | ||
4c940960 | 699 | prefix = strempty(prefix); |
63c372cb | 700 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 701 | |
5cb5a6ff | 702 | fprintf(f, |
81a2b7ce | 703 | "%sService State: %s\n" |
f42806df LP |
704 | "%sResult: %s\n" |
705 | "%sReload Result: %s\n" | |
81a2b7ce | 706 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 707 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 708 | "%sRemainAfterExit: %s\n" |
3185a36b | 709 | "%sGuessMainPID: %s\n" |
c952c6ec | 710 | "%sType: %s\n" |
2cf3143a | 711 | "%sRestart: %s\n" |
308d72dc LP |
712 | "%sNotifyAccess: %s\n" |
713 | "%sNotifyState: %s\n", | |
81a2b7ce | 714 | prefix, service_state_to_string(s->state), |
f42806df LP |
715 | prefix, service_result_to_string(s->result), |
716 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 717 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 718 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 719 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 720 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 721 | prefix, service_type_to_string(s->type), |
2cf3143a | 722 | prefix, service_restart_to_string(s->restart), |
308d72dc LP |
723 | prefix, notify_access_to_string(s->notify_access), |
724 | prefix, notify_state_to_string(s->notify_state)); | |
5cb5a6ff | 725 | |
70123e68 LP |
726 | if (s->control_pid > 0) |
727 | fprintf(f, | |
ccd06097 ZJS |
728 | "%sControl PID: "PID_FMT"\n", |
729 | prefix, s->control_pid); | |
70123e68 LP |
730 | |
731 | if (s->main_pid > 0) | |
732 | fprintf(f, | |
ccd06097 | 733 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
734 | "%sMain PID Known: %s\n" |
735 | "%sMain PID Alien: %s\n", | |
ccd06097 | 736 | prefix, s->main_pid, |
6dfa5494 LP |
737 | prefix, yes_no(s->main_pid_known), |
738 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 739 | |
034c6ed7 LP |
740 | if (s->pid_file) |
741 | fprintf(f, | |
742 | "%sPIDFile: %s\n", | |
743 | prefix, s->pid_file); | |
744 | ||
05e343b7 LP |
745 | if (s->bus_name) |
746 | fprintf(f, | |
747 | "%sBusName: %s\n" | |
748 | "%sBus Name Good: %s\n", | |
749 | prefix, s->bus_name, | |
750 | prefix, yes_no(s->bus_name_good)); | |
751 | ||
4819ff03 | 752 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
753 | exec_context_dump(&s->exec_context, f, prefix); |
754 | ||
e537352b | 755 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 756 | |
44d8db9e LP |
757 | if (!s->exec_command[c]) |
758 | continue; | |
759 | ||
40d50879 | 760 | fprintf(f, "%s-> %s:\n", |
94f04347 | 761 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
762 | |
763 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 764 | } |
44d8db9e | 765 | |
8c47c732 LP |
766 | if (s->status_text) |
767 | fprintf(f, "%sStatus Text: %s\n", | |
768 | prefix, s->status_text); | |
a354329f | 769 | |
ece174c5 | 770 | if (s->n_fd_store_max > 0) |
a354329f LP |
771 | fprintf(f, |
772 | "%sFile Descriptor Store Max: %u\n" | |
773 | "%sFile Descriptor Store Current: %u\n", | |
774 | prefix, s->n_fd_store_max, | |
775 | prefix, s->n_fd_store); | |
5cb5a6ff LP |
776 | } |
777 | ||
c5419d42 | 778 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 779 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 780 | int r; |
5925dd3c | 781 | pid_t pid; |
034c6ed7 LP |
782 | |
783 | assert(s); | |
784 | ||
034c6ed7 | 785 | if (!s->pid_file) |
13230d5d | 786 | return -ENOENT; |
034c6ed7 | 787 | |
117dcc57 ZJS |
788 | r = read_one_line_file(s->pid_file, &k); |
789 | if (r < 0) { | |
c5419d42 | 790 | if (may_warn) |
f2341e0a | 791 | log_unit_info_errno(UNIT(s), r, "PID file %s not readable (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); |
034c6ed7 | 792 | return r; |
5375410b | 793 | } |
034c6ed7 | 794 | |
5925dd3c | 795 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
796 | if (r < 0) { |
797 | if (may_warn) | |
f2341e0a | 798 | log_unit_info_errno(UNIT(s), r, "Failed to read PID from file %s: %m", s->pid_file); |
5925dd3c | 799 | return r; |
bc41f93e | 800 | } |
406eaf93 | 801 | |
9f5650ae | 802 | if (!pid_is_alive(pid)) { |
c5419d42 | 803 | if (may_warn) |
f2341e0a | 804 | log_unit_info(UNIT(s), "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file); |
e10c9985 YS |
805 | return -ESRCH; |
806 | } | |
807 | ||
db01f8b3 MS |
808 | if (s->main_pid_known) { |
809 | if (pid == s->main_pid) | |
810 | return 0; | |
811 | ||
f2341e0a | 812 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 813 | |
db01f8b3 MS |
814 | service_unwatch_main_pid(s); |
815 | s->main_pid_known = false; | |
3a111838 | 816 | } else |
f2341e0a | 817 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 818 | |
117dcc57 ZJS |
819 | r = service_set_main_pid(s, pid); |
820 | if (r < 0) | |
16f6025e LP |
821 | return r; |
822 | ||
117dcc57 | 823 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 824 | if (r < 0) { |
5925dd3c | 825 | /* FIXME: we need to do something here */ |
f2341e0a | 826 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); |
5925dd3c | 827 | return r; |
bc41f93e | 828 | } |
034c6ed7 LP |
829 | |
830 | return 0; | |
831 | } | |
832 | ||
4fbf50b3 | 833 | static int service_search_main_pid(Service *s) { |
efdb0237 | 834 | pid_t pid = 0; |
4fbf50b3 LP |
835 | int r; |
836 | ||
837 | assert(s); | |
838 | ||
3185a36b LP |
839 | /* If we know it anyway, don't ever fallback to unreliable |
840 | * heuristics */ | |
4fbf50b3 LP |
841 | if (s->main_pid_known) |
842 | return 0; | |
843 | ||
3185a36b LP |
844 | if (!s->guess_main_pid) |
845 | return 0; | |
846 | ||
4fbf50b3 LP |
847 | assert(s->main_pid <= 0); |
848 | ||
efdb0237 LP |
849 | r = unit_search_main_pid(UNIT(s), &pid); |
850 | if (r < 0) | |
851 | return r; | |
4fbf50b3 | 852 | |
f2341e0a | 853 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
117dcc57 ZJS |
854 | r = service_set_main_pid(s, pid); |
855 | if (r < 0) | |
4fbf50b3 LP |
856 | return r; |
857 | ||
117dcc57 | 858 | r = unit_watch_pid(UNIT(s), pid); |
8bb2d17d | 859 | if (r < 0) { |
4fbf50b3 | 860 | /* FIXME: we need to do something here */ |
f2341e0a | 861 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
8bb2d17d LP |
862 | return r; |
863 | } | |
864 | ||
865 | return 0; | |
4fbf50b3 LP |
866 | } |
867 | ||
034c6ed7 LP |
868 | static void service_set_state(Service *s, ServiceState state) { |
869 | ServiceState old_state; | |
e056b01d | 870 | const UnitActiveState *table; |
842129f5 | 871 | |
5cb5a6ff LP |
872 | assert(s); |
873 | ||
e056b01d LP |
874 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
875 | ||
034c6ed7 | 876 | old_state = s->state; |
5cb5a6ff | 877 | s->state = state; |
034c6ed7 | 878 | |
3a111838 MS |
879 | service_unwatch_pid_file(s); |
880 | ||
842129f5 LP |
881 | if (!IN_SET(state, |
882 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
883 | SERVICE_RELOAD, | |
57614eb1 | 884 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 LP |
885 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
886 | SERVICE_AUTO_RESTART)) | |
718db961 | 887 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 888 | |
842129f5 LP |
889 | if (!IN_SET(state, |
890 | SERVICE_START, SERVICE_START_POST, | |
891 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 | 892 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 893 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 894 | service_unwatch_main_pid(s); |
867b3b7d LP |
895 | s->main_command = NULL; |
896 | } | |
034c6ed7 | 897 | |
842129f5 LP |
898 | if (!IN_SET(state, |
899 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
900 | SERVICE_RELOAD, | |
57614eb1 | 901 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 902 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 903 | service_unwatch_control_pid(s); |
034c6ed7 | 904 | s->control_command = NULL; |
a16e1123 | 905 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 906 | } |
034c6ed7 | 907 | |
a911bb9a LP |
908 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
909 | unit_unwatch_all_pids(UNIT(s)); | |
910 | ||
842129f5 LP |
911 | if (!IN_SET(state, |
912 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
913 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 LP |
914 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
915 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 916 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 917 | service_close_socket_fd(s); |
6cf6bbc2 LP |
918 | service_connection_unref(s); |
919 | } | |
4f2d528d | 920 | |
7596e9e1 | 921 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
922 | service_stop_watchdog(s); |
923 | ||
f6023656 LP |
924 | /* For the inactive states unit_notify() will trim the cgroup, |
925 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 926 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
efdb0237 | 927 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 928 | |
9cd86184 OB |
929 | /* For remain_after_exit services, let's see if we can "release" the |
930 | * hold on the console, since unit_notify() only does that in case of | |
931 | * change of state */ | |
f49650ce LP |
932 | if (state == SERVICE_EXITED && |
933 | s->remain_after_exit && | |
9cd86184 | 934 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
935 | |
936 | ExecContext *ec; | |
937 | ||
938 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
939 | if (ec && exec_context_may_touch_console(ec)) { |
940 | Manager *m = UNIT(s)->manager; | |
941 | ||
942 | m->n_on_console --; | |
943 | if (m->n_on_console == 0) | |
944 | /* unset no_console_output flag, since the console is free */ | |
945 | m->no_console_output = false; | |
946 | } | |
947 | } | |
948 | ||
e537352b | 949 | if (old_state != state) |
f2341e0a | 950 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 951 | |
e056b01d | 952 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
034c6ed7 LP |
953 | } |
954 | ||
be847e82 | 955 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
956 | Service *s = SERVICE(u); |
957 | int r; | |
958 | ||
959 | assert(s); | |
960 | assert(s->state == SERVICE_DEAD); | |
961 | ||
930d2838 LP |
962 | if (s->deserialized_state == s->state) |
963 | return 0; | |
6c12b52e | 964 | |
930d2838 LP |
965 | if (IN_SET(s->deserialized_state, |
966 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
967 | SERVICE_RELOAD, | |
968 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
969 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
e558336f | 970 | |
930d2838 | 971 | usec_t k; |
a16e1123 | 972 | |
930d2838 | 973 | k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec; |
92c1622e | 974 | |
930d2838 LP |
975 | /* For the start/stop timeouts 0 means off */ |
976 | if (k > 0) { | |
977 | r = service_arm_timer(s, k); | |
bf108e55 LP |
978 | if (r < 0) |
979 | return r; | |
980 | } | |
930d2838 | 981 | } |
a16e1123 | 982 | |
930d2838 | 983 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
a16e1123 | 984 | |
930d2838 LP |
985 | /* The restart timeouts 0 means immediately */ |
986 | r = service_arm_timer(s, s->restart_usec); | |
987 | if (r < 0) | |
988 | return r; | |
989 | } | |
a911bb9a | 990 | |
930d2838 LP |
991 | if (s->main_pid > 0 && |
992 | pid_is_unwaited(s->main_pid) && | |
993 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
994 | IN_SET(s->deserialized_state, | |
995 | SERVICE_START, SERVICE_START_POST, | |
996 | SERVICE_RUNNING, SERVICE_RELOAD, | |
997 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
998 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
999 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1000 | if (r < 0) | |
1001 | return r; | |
1002 | } | |
bb242b7b | 1003 | |
930d2838 LP |
1004 | if (s->control_pid > 0 && |
1005 | pid_is_unwaited(s->control_pid) && | |
1006 | IN_SET(s->deserialized_state, | |
1007 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1008 | SERVICE_RELOAD, | |
1009 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1010 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1011 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1012 | if (r < 0) | |
1013 | return r; | |
a16e1123 | 1014 | } |
92c1622e | 1015 | |
930d2838 LP |
1016 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1017 | unit_watch_all_pids(UNIT(s)); | |
1018 | ||
1019 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) | |
1020 | service_start_watchdog(s); | |
1021 | ||
1022 | service_set_state(s, s->deserialized_state); | |
a16e1123 LP |
1023 | return 0; |
1024 | } | |
1025 | ||
8dd4c05b LP |
1026 | static int service_collect_fds(Service *s, int **fds, char ***fd_names) { |
1027 | _cleanup_strv_free_ char **rfd_names = NULL; | |
a354329f | 1028 | _cleanup_free_ int *rfds = NULL; |
8dd4c05b | 1029 | int rn_fds = 0, r; |
44d8db9e LP |
1030 | |
1031 | assert(s); | |
1032 | assert(fds); | |
8dd4c05b | 1033 | assert(fd_names); |
44d8db9e | 1034 | |
8dd4c05b | 1035 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1036 | |
8dd4c05b | 1037 | /* Pass the per-connection socket */ |
57020a3a | 1038 | |
8dd4c05b LP |
1039 | rfds = new(int, 1); |
1040 | if (!rfds) | |
1041 | return -ENOMEM; | |
1042 | rfds[0] = s->socket_fd; | |
57020a3a | 1043 | |
8dd4c05b LP |
1044 | rfd_names = strv_new("connection", NULL); |
1045 | if (!rfd_names) | |
1046 | return -ENOMEM; | |
44d8db9e | 1047 | |
8dd4c05b LP |
1048 | rn_fds = 1; |
1049 | } else { | |
1050 | Iterator i; | |
1051 | Unit *u; | |
44d8db9e | 1052 | |
8dd4c05b | 1053 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1054 | |
8dd4c05b LP |
1055 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
1056 | _cleanup_free_ int *cfds = NULL; | |
1057 | Socket *sock; | |
1058 | int cn_fds; | |
44d8db9e | 1059 | |
8dd4c05b LP |
1060 | if (u->type != UNIT_SOCKET) |
1061 | continue; | |
44d8db9e | 1062 | |
8dd4c05b | 1063 | sock = SOCKET(u); |
a354329f | 1064 | |
8dd4c05b LP |
1065 | cn_fds = socket_collect_fds(sock, &cfds); |
1066 | if (cn_fds < 0) | |
1067 | return cn_fds; | |
44d8db9e | 1068 | |
8dd4c05b LP |
1069 | if (cn_fds <= 0) |
1070 | continue; | |
79c7626d | 1071 | |
8dd4c05b LP |
1072 | if (!rfds) { |
1073 | rfds = cfds; | |
1074 | rn_fds = cn_fds; | |
1075 | ||
1076 | cfds = NULL; | |
1077 | } else { | |
1078 | int *t; | |
1079 | ||
1080 | t = realloc(rfds, (rn_fds + cn_fds) * sizeof(int)); | |
1081 | if (!t) | |
1082 | return -ENOMEM; | |
1083 | ||
1084 | memcpy(t + rn_fds, cfds, cn_fds * sizeof(int)); | |
1085 | ||
1086 | rfds = t; | |
1087 | rn_fds += cn_fds; | |
1088 | } | |
1089 | ||
1090 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1091 | if (r < 0) | |
1092 | return r; | |
44d8db9e LP |
1093 | } |
1094 | } | |
1095 | ||
a354329f LP |
1096 | if (s->n_fd_store > 0) { |
1097 | ServiceFDStore *fs; | |
8dd4c05b | 1098 | char **nl; |
a354329f LP |
1099 | int *t; |
1100 | ||
1101 | t = realloc(rfds, (rn_fds + s->n_fd_store) * sizeof(int)); | |
1102 | if (!t) | |
1103 | return -ENOMEM; | |
1104 | ||
1105 | rfds = t; | |
8dd4c05b LP |
1106 | |
1107 | nl = realloc(rfd_names, (rn_fds + s->n_fd_store + 1) * sizeof(char*)); | |
1108 | if (!nl) | |
1109 | return -ENOMEM; | |
1110 | ||
1111 | rfd_names = nl; | |
1112 | ||
1113 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
1114 | rfds[rn_fds] = fs->fd; | |
1115 | rfd_names[rn_fds] = strdup(strempty(fs->fdname)); | |
1116 | if (!rfd_names[rn_fds]) | |
1117 | return -ENOMEM; | |
1118 | ||
1119 | rn_fds++; | |
1120 | } | |
1121 | ||
1122 | rfd_names[rn_fds] = NULL; | |
a354329f LP |
1123 | } |
1124 | ||
44d8db9e | 1125 | *fds = rfds; |
8dd4c05b | 1126 | *fd_names = rfd_names; |
3e33402a | 1127 | |
a354329f | 1128 | rfds = NULL; |
8dd4c05b | 1129 | rfd_names = NULL; |
79c7626d LP |
1130 | |
1131 | return rn_fds; | |
44d8db9e LP |
1132 | } |
1133 | ||
81a2b7ce LP |
1134 | static int service_spawn( |
1135 | Service *s, | |
1136 | ExecCommand *c, | |
21b2ce39 | 1137 | usec_t timeout, |
81a2b7ce LP |
1138 | bool pass_fds, |
1139 | bool apply_permissions, | |
1140 | bool apply_chroot, | |
1e3ad081 | 1141 | bool apply_tty_stdin, |
ecedd90f | 1142 | bool is_control, |
81a2b7ce LP |
1143 | pid_t *_pid) { |
1144 | ||
8dd4c05b | 1145 | _cleanup_strv_free_ char **argv = NULL, **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
e44da745 | 1146 | _cleanup_free_ char *bus_endpoint_path = NULL; |
8dd4c05b LP |
1147 | _cleanup_free_ int *fds = NULL; |
1148 | unsigned n_fds = 0, n_env = 0; | |
4ad49000 | 1149 | const char *path; |
8dd4c05b LP |
1150 | pid_t pid; |
1151 | ||
9fa95f85 | 1152 | ExecParameters exec_params = { |
a34ceba6 LP |
1153 | .apply_permissions = apply_permissions, |
1154 | .apply_chroot = apply_chroot, | |
1155 | .apply_tty_stdin = apply_tty_stdin, | |
1156 | .bus_endpoint_fd = -1, | |
1157 | .stdin_fd = -1, | |
1158 | .stdout_fd = -1, | |
1159 | .stderr_fd = -1, | |
9fa95f85 | 1160 | }; |
034c6ed7 | 1161 | |
8dd4c05b LP |
1162 | int r; |
1163 | ||
034c6ed7 LP |
1164 | assert(s); |
1165 | assert(c); | |
1166 | assert(_pid); | |
1167 | ||
5ad096b3 LP |
1168 | (void) unit_realize_cgroup(UNIT(s)); |
1169 | if (s->reset_cpu_usage) { | |
1170 | (void) unit_reset_cpu_usage(UNIT(s)); | |
1171 | s->reset_cpu_usage = false; | |
1172 | } | |
4ad49000 | 1173 | |
613b411c LP |
1174 | r = unit_setup_exec_runtime(UNIT(s)); |
1175 | if (r < 0) | |
1176 | goto fail; | |
1177 | ||
6cf6bbc2 LP |
1178 | if (pass_fds || |
1179 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1180 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1181 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1182 | ||
8dd4c05b LP |
1183 | r = service_collect_fds(s, &fds, &fd_names); |
1184 | if (r < 0) | |
1185 | goto fail; | |
6cf6bbc2 | 1186 | |
8dd4c05b | 1187 | n_fds = r; |
4f2d528d | 1188 | } |
44d8db9e | 1189 | |
21b2ce39 LP |
1190 | if (timeout > 0) { |
1191 | r = service_arm_timer(s, timeout); | |
92c1622e LP |
1192 | if (r < 0) |
1193 | goto fail; | |
1194 | } else | |
1195 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 1196 | |
19f6d710 LP |
1197 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1198 | if (r < 0) | |
9e2f7c11 | 1199 | goto fail; |
9e2f7c11 | 1200 | |
3b1c5241 | 1201 | our_env = new0(char*, 6); |
97ae63e2 | 1202 | if (!our_env) { |
2105e76a LP |
1203 | r = -ENOMEM; |
1204 | goto fail; | |
1205 | } | |
c952c6ec | 1206 | |
a158dbf1 | 1207 | if (is_control ? s->notify_access == NOTIFY_ALL : s->notify_access != NOTIFY_NONE) |
1124fe6f | 1208 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
1209 | r = -ENOMEM; |
1210 | goto fail; | |
1211 | } | |
1212 | ||
2105e76a | 1213 | if (s->main_pid > 0) |
ccd06097 | 1214 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) { |
c952c6ec LP |
1215 | r = -ENOMEM; |
1216 | goto fail; | |
1217 | } | |
2105e76a | 1218 | |
b2c23da8 | 1219 | if (UNIT(s)->manager->running_as != MANAGER_SYSTEM) |
ccd06097 | 1220 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) { |
97ae63e2 LP |
1221 | r = -ENOMEM; |
1222 | goto fail; | |
1223 | } | |
1224 | ||
8dd4c05b | 1225 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1226 | union sockaddr_union sa; |
1227 | socklen_t salen = sizeof(sa); | |
1228 | ||
1229 | r = getpeername(s->socket_fd, &sa.sa, &salen); | |
1230 | if (r < 0) { | |
1231 | r = -errno; | |
1232 | goto fail; | |
1233 | } | |
1234 | ||
1235 | if (IN_SET(sa.sa.sa_family, AF_INET, AF_INET6)) { | |
1236 | _cleanup_free_ char *addr = NULL; | |
1237 | char *t; | |
1238 | int port; | |
1239 | ||
1240 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1241 | if (r < 0) | |
1242 | goto fail; | |
1243 | ||
1244 | t = strappend("REMOTE_ADDR=", addr); | |
1245 | if (!t) { | |
1246 | r = -ENOMEM; | |
1247 | goto fail; | |
1248 | } | |
1249 | our_env[n_env++] = t; | |
1250 | ||
1251 | port = sockaddr_port(&sa.sa); | |
1252 | if (port < 0) { | |
1253 | r = port; | |
1254 | goto fail; | |
1255 | } | |
1256 | ||
1257 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) { | |
1258 | r = -ENOMEM; | |
1259 | goto fail; | |
1260 | } | |
1261 | our_env[n_env++] = t; | |
1262 | } | |
1263 | } | |
1264 | ||
97ae63e2 LP |
1265 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); |
1266 | if (!final_env) { | |
2105e76a LP |
1267 | r = -ENOMEM; |
1268 | goto fail; | |
1269 | } | |
c952c6ec | 1270 | |
4ad49000 | 1271 | if (is_control && UNIT(s)->cgroup_path) { |
63c372cb | 1272 | path = strjoina(UNIT(s)->cgroup_path, "/control"); |
ac5b0c13 | 1273 | (void) cg_create(SYSTEMD_CGROUP_CONTROLLER, path); |
4ad49000 LP |
1274 | } else |
1275 | path = UNIT(s)->cgroup_path; | |
1276 | ||
e44da745 | 1277 | if (s->exec_context.bus_endpoint) { |
b2c23da8 | 1278 | r = bus_kernel_create_endpoint(UNIT(s)->manager->running_as == MANAGER_SYSTEM ? "system" : "user", |
e44da745 DM |
1279 | UNIT(s)->id, &bus_endpoint_path); |
1280 | if (r < 0) | |
1281 | goto fail; | |
1282 | ||
1283 | /* Pass the fd to the exec_params so that the child process can upload the policy. | |
1284 | * Keep a reference to the fd in the service, so the endpoint is kept alive as long | |
1285 | * as the service is running. */ | |
1286 | exec_params.bus_endpoint_fd = s->bus_endpoint_fd = r; | |
1287 | } | |
e44da745 | 1288 | |
9fa95f85 DM |
1289 | exec_params.argv = argv; |
1290 | exec_params.fds = fds; | |
8dd4c05b | 1291 | exec_params.fd_names = fd_names; |
9fa95f85 DM |
1292 | exec_params.n_fds = n_fds; |
1293 | exec_params.environment = final_env; | |
1294 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
1295 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
1296 | exec_params.cgroup_path = path; | |
a931ad47 | 1297 | exec_params.cgroup_delegate = s->cgroup_context.delegate; |
9fa95f85 | 1298 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); |
9fa95f85 | 1299 | exec_params.watchdog_usec = s->watchdog_usec; |
e44da745 | 1300 | exec_params.bus_endpoint_path = bus_endpoint_path; |
a34ceba6 | 1301 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1302 | if (s->type == SERVICE_IDLE) |
1303 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1304 | exec_params.stdin_fd = s->stdin_fd; |
1305 | exec_params.stdout_fd = s->stdout_fd; | |
1306 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1307 | |
f2341e0a LP |
1308 | r = exec_spawn(UNIT(s), |
1309 | c, | |
9e2f7c11 | 1310 | &s->exec_context, |
9fa95f85 | 1311 | &exec_params, |
613b411c | 1312 | s->exec_runtime, |
9e2f7c11 | 1313 | &pid); |
9e2f7c11 | 1314 | if (r < 0) |
034c6ed7 LP |
1315 | goto fail; |
1316 | ||
117dcc57 ZJS |
1317 | r = unit_watch_pid(UNIT(s), pid); |
1318 | if (r < 0) | |
034c6ed7 LP |
1319 | /* FIXME: we need to do something here */ |
1320 | goto fail; | |
1321 | ||
1322 | *_pid = pid; | |
1323 | ||
5cb5a6ff | 1324 | return 0; |
034c6ed7 LP |
1325 | |
1326 | fail: | |
1327 | if (timeout) | |
718db961 | 1328 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
1329 | |
1330 | return r; | |
1331 | } | |
1332 | ||
80876c20 LP |
1333 | static int main_pid_good(Service *s) { |
1334 | assert(s); | |
1335 | ||
1336 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1337 | * don't know */ | |
1338 | ||
fc08079e | 1339 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1340 | * still valid */ |
6dfa5494 LP |
1341 | if (s->main_pid_known) { |
1342 | ||
1343 | /* If it's an alien child let's check if it is still | |
1344 | * alive ... */ | |
62220cf7 | 1345 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1346 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1347 | |
1348 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1349 | * which we really should wait for to collect exit | |
1350 | * status and code */ | |
80876c20 | 1351 | return s->main_pid > 0; |
6dfa5494 | 1352 | } |
80876c20 LP |
1353 | |
1354 | /* We don't know the pid */ | |
1355 | return -EAGAIN; | |
1356 | } | |
1357 | ||
44a6b1b6 | 1358 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1359 | assert(s); |
1360 | ||
1361 | return s->control_pid > 0; | |
1362 | } | |
1363 | ||
1364 | static int cgroup_good(Service *s) { | |
1365 | int r; | |
1366 | ||
1367 | assert(s); | |
1368 | ||
4ad49000 LP |
1369 | if (!UNIT(s)->cgroup_path) |
1370 | return 0; | |
1371 | ||
6f883237 | 1372 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1373 | if (r < 0) |
80876c20 LP |
1374 | return r; |
1375 | ||
1376 | return !r; | |
1377 | } | |
1378 | ||
a509f0e6 LP |
1379 | static bool service_shall_restart(Service *s) { |
1380 | assert(s); | |
1381 | ||
1382 | /* Don't restart after manual stops */ | |
1383 | if (s->forbid_restart) | |
1384 | return false; | |
1385 | ||
1386 | /* Never restart if this is configured as special exception */ | |
1387 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1388 | return false; | |
1389 | ||
1390 | /* Restart if the exit code/status are configured as restart triggers */ | |
1391 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1392 | return true; | |
1393 | ||
1394 | switch (s->restart) { | |
1395 | ||
1396 | case SERVICE_RESTART_NO: | |
1397 | return false; | |
1398 | ||
1399 | case SERVICE_RESTART_ALWAYS: | |
1400 | return true; | |
1401 | ||
1402 | case SERVICE_RESTART_ON_SUCCESS: | |
1403 | return s->result == SERVICE_SUCCESS; | |
1404 | ||
1405 | case SERVICE_RESTART_ON_FAILURE: | |
1406 | return s->result != SERVICE_SUCCESS; | |
1407 | ||
1408 | case SERVICE_RESTART_ON_ABNORMAL: | |
1409 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1410 | ||
1411 | case SERVICE_RESTART_ON_WATCHDOG: | |
1412 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1413 | ||
1414 | case SERVICE_RESTART_ON_ABORT: | |
1415 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1416 | ||
1417 | default: | |
1418 | assert_not_reached("unknown restart setting"); | |
1419 | } | |
1420 | } | |
1421 | ||
f42806df | 1422 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1423 | int r; |
1424 | assert(s); | |
1425 | ||
f42806df LP |
1426 | if (f != SERVICE_SUCCESS) |
1427 | s->result = f; | |
034c6ed7 | 1428 | |
0c7f15b3 MS |
1429 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1430 | ||
2928b0a8 | 1431 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1432 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
2928b0a8 LP |
1433 | failure_action(UNIT(s)->manager, s->failure_action, s->reboot_arg); |
1434 | } | |
93ae25e6 | 1435 | |
a509f0e6 | 1436 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1437 | |
718db961 | 1438 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1439 | if (r < 0) |
034c6ed7 LP |
1440 | goto fail; |
1441 | ||
1442 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1443 | } |
034c6ed7 | 1444 | |
f2341e0a | 1445 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1446 | s->forbid_restart = false; |
1447 | ||
e66cf1a3 | 1448 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1449 | exec_runtime_destroy(s->exec_runtime); |
1450 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1451 | |
e66cf1a3 LP |
1452 | /* Also, remove the runtime directory in */ |
1453 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); | |
1454 | ||
9285c9ff LN |
1455 | /* Try to delete the pid file. At this point it will be |
1456 | * out-of-date, and some software might be confused by it, so | |
1457 | * let's remove it. */ | |
1458 | if (s->pid_file) | |
1459 | unlink_noerrno(s->pid_file); | |
1460 | ||
034c6ed7 LP |
1461 | return; |
1462 | ||
1463 | fail: | |
f2341e0a | 1464 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1465 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1466 | } |
1467 | ||
f42806df | 1468 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1469 | int r; |
1470 | assert(s); | |
1471 | ||
f42806df LP |
1472 | if (f != SERVICE_SUCCESS) |
1473 | s->result = f; | |
034c6ed7 | 1474 | |
5e94833f | 1475 | service_unwatch_control_pid(s); |
a911bb9a | 1476 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1477 | |
117dcc57 ZJS |
1478 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1479 | if (s->control_command) { | |
867b3b7d LP |
1480 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1481 | ||
ecedd90f LP |
1482 | r = service_spawn(s, |
1483 | s->control_command, | |
21b2ce39 | 1484 | s->timeout_stop_usec, |
ecedd90f LP |
1485 | false, |
1486 | !s->permissions_start_only, | |
1487 | !s->root_directory_start_only, | |
1488 | true, | |
ecedd90f LP |
1489 | true, |
1490 | &s->control_pid); | |
1491 | if (r < 0) | |
034c6ed7 LP |
1492 | goto fail; |
1493 | ||
80876c20 LP |
1494 | service_set_state(s, SERVICE_STOP_POST); |
1495 | } else | |
ac84d1fb | 1496 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1497 | |
1498 | return; | |
1499 | ||
1500 | fail: | |
f2341e0a | 1501 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1502 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1503 | } |
1504 | ||
4940c0b0 LP |
1505 | static int state_to_kill_operation(ServiceState state) { |
1506 | switch (state) { | |
1507 | ||
1508 | case SERVICE_STOP_SIGABRT: | |
1509 | return KILL_ABORT; | |
1510 | ||
1511 | case SERVICE_STOP_SIGTERM: | |
1512 | case SERVICE_FINAL_SIGTERM: | |
1513 | return KILL_TERMINATE; | |
1514 | ||
1515 | case SERVICE_STOP_SIGKILL: | |
1516 | case SERVICE_FINAL_SIGKILL: | |
1517 | return KILL_KILL; | |
1518 | ||
1519 | default: | |
1520 | return _KILL_OPERATION_INVALID; | |
1521 | } | |
1522 | } | |
1523 | ||
f42806df | 1524 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1525 | int r; |
034c6ed7 LP |
1526 | |
1527 | assert(s); | |
1528 | ||
f42806df LP |
1529 | if (f != SERVICE_SUCCESS) |
1530 | s->result = f; | |
034c6ed7 | 1531 | |
a911bb9a LP |
1532 | unit_watch_all_pids(UNIT(s)); |
1533 | ||
cd2086fe LP |
1534 | r = unit_kill_context( |
1535 | UNIT(s), | |
1536 | &s->kill_context, | |
4940c0b0 | 1537 | state_to_kill_operation(state), |
cd2086fe LP |
1538 | s->main_pid, |
1539 | s->control_pid, | |
1540 | s->main_pid_alien); | |
ac84d1fb | 1541 | |
cd2086fe LP |
1542 | if (r < 0) |
1543 | goto fail; | |
034c6ed7 | 1544 | |
cd2086fe | 1545 | if (r > 0) { |
d568a335 | 1546 | if (s->timeout_stop_usec > 0) { |
718db961 | 1547 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 1548 | if (r < 0) |
e558336f | 1549 | goto fail; |
d568a335 | 1550 | } |
d6ea93e3 | 1551 | |
80876c20 | 1552 | service_set_state(s, state); |
1db0db4b | 1553 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1554 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1555 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1556 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1557 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1558 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1559 | else |
f42806df | 1560 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1561 | |
1562 | return; | |
1563 | ||
1564 | fail: | |
f2341e0a | 1565 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1566 | |
a00973af | 1567 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1568 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1569 | else |
f42806df | 1570 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1571 | } |
1572 | ||
308d72dc LP |
1573 | static void service_enter_stop_by_notify(Service *s) { |
1574 | assert(s); | |
1575 | ||
1576 | unit_watch_all_pids(UNIT(s)); | |
1577 | ||
1578 | if (s->timeout_stop_usec > 0) | |
1579 | service_arm_timer(s, s->timeout_stop_usec); | |
1580 | ||
6041a7ee MS |
1581 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1582 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1583 | } |
1584 | ||
f42806df | 1585 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1586 | int r; |
5925dd3c | 1587 | |
034c6ed7 LP |
1588 | assert(s); |
1589 | ||
f42806df LP |
1590 | if (f != SERVICE_SUCCESS) |
1591 | s->result = f; | |
034c6ed7 | 1592 | |
5e94833f | 1593 | service_unwatch_control_pid(s); |
a911bb9a | 1594 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1595 | |
117dcc57 ZJS |
1596 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1597 | if (s->control_command) { | |
867b3b7d LP |
1598 | s->control_command_id = SERVICE_EXEC_STOP; |
1599 | ||
ecedd90f LP |
1600 | r = service_spawn(s, |
1601 | s->control_command, | |
21b2ce39 | 1602 | s->timeout_stop_usec, |
ecedd90f LP |
1603 | false, |
1604 | !s->permissions_start_only, | |
1605 | !s->root_directory_start_only, | |
1606 | false, | |
ecedd90f LP |
1607 | true, |
1608 | &s->control_pid); | |
1609 | if (r < 0) | |
034c6ed7 LP |
1610 | goto fail; |
1611 | ||
80876c20 LP |
1612 | service_set_state(s, SERVICE_STOP); |
1613 | } else | |
f42806df | 1614 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1615 | |
1616 | return; | |
1617 | ||
1618 | fail: | |
f2341e0a | 1619 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1620 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1621 | } |
1622 | ||
957c3cf9 LP |
1623 | static bool service_good(Service *s) { |
1624 | int main_pid_ok; | |
1625 | assert(s); | |
1626 | ||
1627 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1628 | return false; | |
1629 | ||
1630 | main_pid_ok = main_pid_good(s); | |
1631 | if (main_pid_ok > 0) /* It's alive */ | |
1632 | return true; | |
1633 | if (main_pid_ok == 0) /* It's dead */ | |
1634 | return false; | |
1635 | ||
1636 | /* OK, we don't know anything about the main PID, maybe | |
1637 | * because there is none. Let's check the control group | |
1638 | * instead. */ | |
1639 | ||
1640 | return cgroup_good(s) != 0; | |
1641 | } | |
1642 | ||
f42806df | 1643 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1644 | assert(s); |
1645 | ||
f42806df LP |
1646 | if (f != SERVICE_SUCCESS) |
1647 | s->result = f; | |
80876c20 | 1648 | |
957c3cf9 | 1649 | if (service_good(s)) { |
308d72dc LP |
1650 | |
1651 | /* If there are any queued up sd_notify() | |
1652 | * notifications, process them now */ | |
1653 | if (s->notify_state == NOTIFY_RELOADING) | |
1654 | service_enter_reload_by_notify(s); | |
1655 | else if (s->notify_state == NOTIFY_STOPPING) | |
1656 | service_enter_stop_by_notify(s); | |
1657 | else | |
1658 | service_set_state(s, SERVICE_RUNNING); | |
1659 | ||
1660 | } else if (s->remain_after_exit) | |
80876c20 LP |
1661 | service_set_state(s, SERVICE_EXITED); |
1662 | else | |
f42806df | 1663 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1664 | } |
1665 | ||
034c6ed7 LP |
1666 | static void service_enter_start_post(Service *s) { |
1667 | int r; | |
1668 | assert(s); | |
1669 | ||
5e94833f | 1670 | service_unwatch_control_pid(s); |
842129f5 | 1671 | service_reset_watchdog(s); |
bb242b7b | 1672 | |
117dcc57 ZJS |
1673 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1674 | if (s->control_command) { | |
867b3b7d LP |
1675 | s->control_command_id = SERVICE_EXEC_START_POST; |
1676 | ||
ecedd90f LP |
1677 | r = service_spawn(s, |
1678 | s->control_command, | |
21b2ce39 | 1679 | s->timeout_start_usec, |
ecedd90f LP |
1680 | false, |
1681 | !s->permissions_start_only, | |
1682 | !s->root_directory_start_only, | |
1683 | false, | |
ecedd90f LP |
1684 | true, |
1685 | &s->control_pid); | |
1686 | if (r < 0) | |
034c6ed7 LP |
1687 | goto fail; |
1688 | ||
80876c20 LP |
1689 | service_set_state(s, SERVICE_START_POST); |
1690 | } else | |
f42806df | 1691 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1692 | |
1693 | return; | |
1694 | ||
1695 | fail: | |
f2341e0a | 1696 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1697 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1698 | } |
1699 | ||
4ad49000 LP |
1700 | static void service_kill_control_processes(Service *s) { |
1701 | char *p; | |
1702 | ||
1703 | if (!UNIT(s)->cgroup_path) | |
1704 | return; | |
1705 | ||
63c372cb | 1706 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
4ad49000 LP |
1707 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
1708 | } | |
1709 | ||
034c6ed7 | 1710 | static void service_enter_start(Service *s) { |
4ad49000 | 1711 | ExecCommand *c; |
034c6ed7 LP |
1712 | pid_t pid; |
1713 | int r; | |
1714 | ||
1715 | assert(s); | |
1716 | ||
41efeaec LP |
1717 | service_unwatch_control_pid(s); |
1718 | service_unwatch_main_pid(s); | |
80876c20 | 1719 | |
8f53a7b8 LP |
1720 | /* We want to ensure that nobody leaks processes from |
1721 | * START_PRE here, so let's go on a killing spree, People | |
1722 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1723 | service_kill_control_processes(s); |
8f53a7b8 | 1724 | |
867b3b7d LP |
1725 | if (s->type == SERVICE_FORKING) { |
1726 | s->control_command_id = SERVICE_EXEC_START; | |
1727 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1728 | ||
1729 | s->main_command = NULL; | |
1730 | } else { | |
1731 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1732 | s->control_command = NULL; | |
1733 | ||
1734 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1735 | } | |
34e9ba66 | 1736 | |
96fb8242 LP |
1737 | if (!c) { |
1738 | assert(s->type == SERVICE_ONESHOT); | |
1739 | service_enter_start_post(s); | |
1740 | return; | |
1741 | } | |
1742 | ||
ecedd90f LP |
1743 | r = service_spawn(s, |
1744 | c, | |
21b2ce39 | 1745 | IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_ONESHOT) ? s->timeout_start_usec : 0, |
ecedd90f LP |
1746 | true, |
1747 | true, | |
1748 | true, | |
1749 | true, | |
ecedd90f LP |
1750 | false, |
1751 | &pid); | |
1752 | if (r < 0) | |
034c6ed7 LP |
1753 | goto fail; |
1754 | ||
f2b68789 | 1755 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
1756 | /* For simple services we immediately start |
1757 | * the START_POST binaries. */ | |
1758 | ||
5925dd3c | 1759 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1760 | service_enter_start_post(s); |
1761 | ||
1762 | } else if (s->type == SERVICE_FORKING) { | |
1763 | ||
1764 | /* For forking services we wait until the start | |
1765 | * process exited. */ | |
1766 | ||
e55224ca | 1767 | s->control_pid = pid; |
80876c20 LP |
1768 | service_set_state(s, SERVICE_START); |
1769 | ||
34e9ba66 | 1770 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
1771 | s->type == SERVICE_DBUS || |
1772 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 1773 | |
34e9ba66 | 1774 | /* For oneshot services we wait until the start |
7d55e835 LP |
1775 | * process exited, too, but it is our main process. */ |
1776 | ||
05e343b7 | 1777 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1778 | * but wait for the bus name to appear on the |
1779 | * bus. Notify services are similar. */ | |
05e343b7 | 1780 | |
5925dd3c | 1781 | service_set_main_pid(s, pid); |
80876c20 | 1782 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1783 | } else |
1784 | assert_not_reached("Unknown service type"); | |
1785 | ||
1786 | return; | |
1787 | ||
1788 | fail: | |
f2341e0a | 1789 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
f42806df | 1790 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1791 | } |
1792 | ||
1793 | static void service_enter_start_pre(Service *s) { | |
1794 | int r; | |
1795 | ||
1796 | assert(s); | |
1797 | ||
5e94833f LP |
1798 | service_unwatch_control_pid(s); |
1799 | ||
117dcc57 ZJS |
1800 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1801 | if (s->control_command) { | |
8f53a7b8 LP |
1802 | /* Before we start anything, let's clear up what might |
1803 | * be left from previous runs. */ | |
4ad49000 | 1804 | service_kill_control_processes(s); |
8f53a7b8 | 1805 | |
867b3b7d LP |
1806 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1807 | ||
ecedd90f LP |
1808 | r = service_spawn(s, |
1809 | s->control_command, | |
21b2ce39 | 1810 | s->timeout_start_usec, |
ecedd90f LP |
1811 | false, |
1812 | !s->permissions_start_only, | |
1813 | !s->root_directory_start_only, | |
1814 | true, | |
ecedd90f LP |
1815 | true, |
1816 | &s->control_pid); | |
1817 | if (r < 0) | |
034c6ed7 LP |
1818 | goto fail; |
1819 | ||
80876c20 LP |
1820 | service_set_state(s, SERVICE_START_PRE); |
1821 | } else | |
034c6ed7 LP |
1822 | service_enter_start(s); |
1823 | ||
1824 | return; | |
1825 | ||
1826 | fail: | |
f2341e0a | 1827 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1828 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1829 | } |
1830 | ||
1831 | static void service_enter_restart(Service *s) { | |
718db961 | 1832 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1833 | int r; |
398ef8ba | 1834 | |
034c6ed7 LP |
1835 | assert(s); |
1836 | ||
a8bb2e65 LP |
1837 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1838 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1839 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1840 | |
718db961 | 1841 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 1842 | if (r < 0) |
2edfa366 | 1843 | goto fail; |
feae8adb DW |
1844 | |
1845 | return; | |
2edfa366 LP |
1846 | } |
1847 | ||
48bb5876 DW |
1848 | /* Any units that are bound to this service must also be |
1849 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1850 | * JOB_START) here so that those dependency jobs will be added | |
1851 | * as well. */ | |
1852 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
1853 | if (r < 0) | |
034c6ed7 LP |
1854 | goto fail; |
1855 | ||
a8bb2e65 LP |
1856 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1857 | * it will be canceled as part of the service_stop() call that | |
1858 | * is executed as part of JOB_RESTART. */ | |
1859 | ||
f2341e0a | 1860 | log_unit_debug(UNIT(s), "Scheduled restart job."); |
034c6ed7 LP |
1861 | return; |
1862 | ||
1863 | fail: | |
f2341e0a | 1864 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1865 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1866 | } |
1867 | ||
308d72dc LP |
1868 | static void service_enter_reload_by_notify(Service *s) { |
1869 | assert(s); | |
1870 | ||
1871 | if (s->timeout_start_usec > 0) | |
1872 | service_arm_timer(s, s->timeout_start_usec); | |
1873 | ||
1874 | service_set_state(s, SERVICE_RELOAD); | |
1875 | } | |
1876 | ||
034c6ed7 LP |
1877 | static void service_enter_reload(Service *s) { |
1878 | int r; | |
1879 | ||
1880 | assert(s); | |
1881 | ||
5e94833f | 1882 | service_unwatch_control_pid(s); |
95c906ae | 1883 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 1884 | |
117dcc57 ZJS |
1885 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1886 | if (s->control_command) { | |
867b3b7d LP |
1887 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1888 | ||
ecedd90f LP |
1889 | r = service_spawn(s, |
1890 | s->control_command, | |
21b2ce39 | 1891 | s->timeout_start_usec, |
ecedd90f LP |
1892 | false, |
1893 | !s->permissions_start_only, | |
1894 | !s->root_directory_start_only, | |
1895 | false, | |
ecedd90f LP |
1896 | true, |
1897 | &s->control_pid); | |
1898 | if (r < 0) | |
034c6ed7 LP |
1899 | goto fail; |
1900 | ||
80876c20 LP |
1901 | service_set_state(s, SERVICE_RELOAD); |
1902 | } else | |
f42806df | 1903 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1904 | |
1905 | return; | |
1906 | ||
1907 | fail: | |
f2341e0a | 1908 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
1909 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1910 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
1911 | } |
1912 | ||
f42806df | 1913 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
1914 | int r; |
1915 | ||
1916 | assert(s); | |
1917 | assert(s->control_command); | |
1918 | assert(s->control_command->command_next); | |
1919 | ||
34e9ba66 | 1920 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 1921 | |
34e9ba66 | 1922 | s->control_command = s->control_command->command_next; |
5e94833f LP |
1923 | service_unwatch_control_pid(s); |
1924 | ||
ecedd90f LP |
1925 | r = service_spawn(s, |
1926 | s->control_command, | |
21b2ce39 | 1927 | IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec, |
ecedd90f LP |
1928 | false, |
1929 | !s->permissions_start_only, | |
1930 | !s->root_directory_start_only, | |
1931 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
1932 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
ecedd90f LP |
1933 | true, |
1934 | &s->control_pid); | |
1935 | if (r < 0) | |
034c6ed7 LP |
1936 | goto fail; |
1937 | ||
1938 | return; | |
1939 | ||
1940 | fail: | |
f2341e0a | 1941 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 1942 | |
80876c20 | 1943 | if (s->state == SERVICE_START_PRE) |
f42806df | 1944 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 1945 | else if (s->state == SERVICE_STOP) |
f42806df | 1946 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1947 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 1948 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 1949 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
1950 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1951 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 1952 | } else |
f42806df | 1953 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
1954 | } |
1955 | ||
f42806df | 1956 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
1957 | pid_t pid; |
1958 | int r; | |
1959 | ||
1960 | assert(s); | |
867b3b7d LP |
1961 | assert(s->main_command); |
1962 | assert(s->main_command->command_next); | |
1963 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 1964 | |
867b3b7d | 1965 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
1966 | service_unwatch_main_pid(s); |
1967 | ||
ecedd90f LP |
1968 | r = service_spawn(s, |
1969 | s->main_command, | |
21b2ce39 | 1970 | s->timeout_start_usec, |
ecedd90f LP |
1971 | true, |
1972 | true, | |
1973 | true, | |
1974 | true, | |
ecedd90f LP |
1975 | false, |
1976 | &pid); | |
1977 | if (r < 0) | |
34e9ba66 LP |
1978 | goto fail; |
1979 | ||
1980 | service_set_main_pid(s, pid); | |
1981 | ||
1982 | return; | |
1983 | ||
1984 | fail: | |
f2341e0a | 1985 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 1986 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
1987 | } |
1988 | ||
93ae25e6 MO |
1989 | static int service_start_limit_test(Service *s) { |
1990 | assert(s); | |
1991 | ||
1992 | if (ratelimit_test(&s->start_limit)) | |
1993 | return 0; | |
1994 | ||
f2341e0a | 1995 | log_unit_warning(UNIT(s), "Start request repeated too quickly."); |
2928b0a8 LP |
1996 | |
1997 | return failure_action(UNIT(s)->manager, s->start_limit_action, s->reboot_arg); | |
93ae25e6 MO |
1998 | } |
1999 | ||
87f0e418 LP |
2000 | static int service_start(Unit *u) { |
2001 | Service *s = SERVICE(u); | |
4b939747 | 2002 | int r; |
5cb5a6ff LP |
2003 | |
2004 | assert(s); | |
2005 | ||
034c6ed7 LP |
2006 | /* We cannot fulfill this request right now, try again later |
2007 | * please! */ | |
a00973af LP |
2008 | if (IN_SET(s->state, |
2009 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2010 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
2011 | return -EAGAIN; |
2012 | ||
034c6ed7 | 2013 | /* Already on it! */ |
a00973af | 2014 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2015 | return 0; |
2016 | ||
2e9d6c12 | 2017 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2018 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2019 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2020 | * service should be manually restarted, not started. We |
2021 | * simply return EAGAIN here, so that any start jobs stay | |
2022 | * queued, and assume that the auto restart timer will | |
2023 | * eventually trigger the restart. */ | |
2024 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2025 | return -EAGAIN; |
2e9d6c12 | 2026 | |
a00973af | 2027 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2028 | |
1e2e8133 | 2029 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 2030 | r = service_start_limit_test(s); |
c2f34808 | 2031 | if (r < 0) { |
8d1b002a | 2032 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 2033 | return r; |
c2f34808 | 2034 | } |
1e2e8133 | 2035 | |
f42806df LP |
2036 | s->result = SERVICE_SUCCESS; |
2037 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2038 | s->main_pid_known = false; |
6dfa5494 | 2039 | s->main_pid_alien = false; |
47342320 | 2040 | s->forbid_restart = false; |
5ad096b3 | 2041 | s->reset_cpu_usage = true; |
034c6ed7 | 2042 | |
a1e58e8e | 2043 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2044 | s->status_errno = 0; |
2045 | ||
308d72dc LP |
2046 | s->notify_state = NOTIFY_UNKNOWN; |
2047 | ||
034c6ed7 | 2048 | service_enter_start_pre(s); |
82a2b6bb | 2049 | return 1; |
5cb5a6ff LP |
2050 | } |
2051 | ||
87f0e418 LP |
2052 | static int service_stop(Unit *u) { |
2053 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2054 | |
2055 | assert(s); | |
2056 | ||
a509f0e6 | 2057 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2058 | s->forbid_restart = true; |
034c6ed7 | 2059 | |
e537352b | 2060 | /* Already on it */ |
a00973af LP |
2061 | if (IN_SET(s->state, |
2062 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2063 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2064 | return 0; |
2065 | ||
f0c7b229 | 2066 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2067 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2068 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2069 | return 0; |
2070 | } | |
2071 | ||
3f6c78dc LP |
2072 | /* If there's already something running we go directly into |
2073 | * kill mode. */ | |
a00973af | 2074 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2075 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2076 | return 0; |
2077 | } | |
5cb5a6ff | 2078 | |
a00973af | 2079 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2080 | |
f42806df | 2081 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2082 | return 1; |
5cb5a6ff LP |
2083 | } |
2084 | ||
87f0e418 LP |
2085 | static int service_reload(Unit *u) { |
2086 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2087 | |
2088 | assert(s); | |
2089 | ||
80876c20 | 2090 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2091 | |
2092 | service_enter_reload(s); | |
2d018ae2 | 2093 | return 1; |
5cb5a6ff LP |
2094 | } |
2095 | ||
44a6b1b6 | 2096 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2097 | Service *s = SERVICE(u); |
034c6ed7 LP |
2098 | |
2099 | assert(s); | |
2100 | ||
2101 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2102 | } | |
2103 | ||
a16e1123 LP |
2104 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2105 | Service *s = SERVICE(u); | |
2339fc93 | 2106 | ServiceFDStore *fs; |
a34ceba6 | 2107 | int r; |
a16e1123 LP |
2108 | |
2109 | assert(u); | |
2110 | assert(f); | |
2111 | assert(fds); | |
2112 | ||
2113 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2114 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2115 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2116 | |
2117 | if (s->control_pid > 0) | |
f06db334 | 2118 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2119 | |
5925dd3c | 2120 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2121 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2122 | |
2123 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2124 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
a16e1123 | 2125 | |
a34ceba6 LP |
2126 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2127 | if (r < 0) | |
2128 | return r; | |
3a2776bc | 2129 | |
cfc4eb4c LP |
2130 | /* FIXME: There's a minor uncleanliness here: if there are |
2131 | * multiple commands attached here, we will start from the | |
2132 | * first one again */ | |
a16e1123 | 2133 | if (s->control_command_id >= 0) |
f06db334 | 2134 | unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); |
a16e1123 | 2135 | |
a34ceba6 LP |
2136 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2137 | if (r < 0) | |
2138 | return r; | |
2139 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2140 | if (r < 0) | |
2141 | return r; | |
2142 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2143 | if (r < 0) | |
2144 | return r; | |
e44da745 | 2145 | |
a34ceba6 LP |
2146 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
2147 | if (r < 0) | |
2148 | return r; | |
2149 | r = unit_serialize_item_fd(u, f, fds, "endpoint-fd", s->bus_endpoint_fd); | |
2150 | if (r < 0) | |
2151 | return r; | |
e44da745 | 2152 | |
2339fc93 | 2153 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2154 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2155 | int copy; |
2156 | ||
2157 | copy = fdset_put_dup(fds, fs->fd); | |
2158 | if (copy < 0) | |
2159 | return copy; | |
2160 | ||
8dd4c05b LP |
2161 | c = cescape(fs->fdname); |
2162 | ||
2163 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2164 | } |
2165 | ||
ecdbca40 | 2166 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2167 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2168 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2169 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2170 | |
799fd0fd | 2171 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2172 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2173 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2174 | } |
2175 | } | |
f06db334 | 2176 | |
a6927d7f | 2177 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
842129f5 | 2178 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2179 | |
a34ceba6 | 2180 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2181 | |
a16e1123 LP |
2182 | return 0; |
2183 | } | |
2184 | ||
2185 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2186 | Service *s = SERVICE(u); | |
2339fc93 | 2187 | int r; |
a16e1123 LP |
2188 | |
2189 | assert(u); | |
2190 | assert(key); | |
2191 | assert(value); | |
2192 | assert(fds); | |
2193 | ||
2194 | if (streq(key, "state")) { | |
2195 | ServiceState state; | |
2196 | ||
117dcc57 ZJS |
2197 | state = service_state_from_string(value); |
2198 | if (state < 0) | |
f2341e0a | 2199 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2200 | else |
2201 | s->deserialized_state = state; | |
f42806df LP |
2202 | } else if (streq(key, "result")) { |
2203 | ServiceResult f; | |
2204 | ||
2205 | f = service_result_from_string(value); | |
2206 | if (f < 0) | |
f2341e0a | 2207 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2208 | else if (f != SERVICE_SUCCESS) |
2209 | s->result = f; | |
2210 | ||
2211 | } else if (streq(key, "reload-result")) { | |
2212 | ServiceResult f; | |
2213 | ||
2214 | f = service_result_from_string(value); | |
2215 | if (f < 0) | |
f2341e0a | 2216 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2217 | else if (f != SERVICE_SUCCESS) |
2218 | s->reload_result = f; | |
a16e1123 | 2219 | |
a16e1123 | 2220 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2221 | pid_t pid; |
a16e1123 | 2222 | |
e364ad06 | 2223 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2224 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2225 | else |
e55224ca | 2226 | s->control_pid = pid; |
a16e1123 | 2227 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2228 | pid_t pid; |
a16e1123 | 2229 | |
e364ad06 | 2230 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2231 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2232 | else { |
2233 | service_set_main_pid(s, pid); | |
2234 | unit_watch_pid(UNIT(s), pid); | |
2235 | } | |
a16e1123 LP |
2236 | } else if (streq(key, "main-pid-known")) { |
2237 | int b; | |
2238 | ||
117dcc57 ZJS |
2239 | b = parse_boolean(value); |
2240 | if (b < 0) | |
f2341e0a | 2241 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2242 | else |
2243 | s->main_pid_known = b; | |
de1d4f9b WF |
2244 | } else if (streq(key, "bus-name-good")) { |
2245 | int b; | |
2246 | ||
2247 | b = parse_boolean(value); | |
2248 | if (b < 0) | |
2249 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2250 | else | |
2251 | s->bus_name_good = b; | |
3a2776bc LP |
2252 | } else if (streq(key, "status-text")) { |
2253 | char *t; | |
2254 | ||
f2341e0a LP |
2255 | r = cunescape(value, 0, &t); |
2256 | if (r < 0) | |
2257 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2258 | else { |
3a2776bc LP |
2259 | free(s->status_text); |
2260 | s->status_text = t; | |
2261 | } | |
2262 | ||
a16e1123 LP |
2263 | } else if (streq(key, "control-command")) { |
2264 | ServiceExecCommand id; | |
2265 | ||
117dcc57 ZJS |
2266 | id = service_exec_command_from_string(value); |
2267 | if (id < 0) | |
f2341e0a | 2268 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
a16e1123 LP |
2269 | else { |
2270 | s->control_command_id = id; | |
2271 | s->control_command = s->exec_command[id]; | |
2272 | } | |
2273 | } else if (streq(key, "socket-fd")) { | |
2274 | int fd; | |
2275 | ||
2276 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2277 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2278 | else { |
574634bc | 2279 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2280 | s->socket_fd = fdset_remove(fds, fd); |
2281 | } | |
e44da745 DM |
2282 | } else if (streq(key, "endpoint-fd")) { |
2283 | int fd; | |
2284 | ||
2285 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2286 | log_unit_debug(u, "Failed to parse endpoint-fd value: %s", value); |
e44da745 DM |
2287 | else { |
2288 | safe_close(s->bus_endpoint_fd); | |
2289 | s->bus_endpoint_fd = fdset_remove(fds, fd); | |
2290 | } | |
2339fc93 | 2291 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2292 | const char *fdv; |
2293 | size_t pf; | |
2339fc93 LP |
2294 | int fd; |
2295 | ||
8dd4c05b LP |
2296 | pf = strcspn(value, WHITESPACE); |
2297 | fdv = strndupa(value, pf); | |
2298 | ||
2299 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2300 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2301 | else { |
8dd4c05b LP |
2302 | _cleanup_free_ char *t = NULL; |
2303 | const char *fdn; | |
2304 | ||
2305 | fdn = value + pf; | |
2306 | fdn += strspn(fdn, WHITESPACE); | |
2307 | (void) cunescape(fdn, 0, &t); | |
2308 | ||
2309 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2310 | if (r < 0) |
f2341e0a | 2311 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
2339fc93 LP |
2312 | else if (r > 0) |
2313 | fdset_remove(fds, fd); | |
2314 | } | |
2315 | ||
ecdbca40 LP |
2316 | } else if (streq(key, "main-exec-status-pid")) { |
2317 | pid_t pid; | |
2318 | ||
e364ad06 | 2319 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2320 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2321 | else |
2322 | s->main_exec_status.pid = pid; | |
2323 | } else if (streq(key, "main-exec-status-code")) { | |
2324 | int i; | |
2325 | ||
e364ad06 | 2326 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2327 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2328 | else |
2329 | s->main_exec_status.code = i; | |
2330 | } else if (streq(key, "main-exec-status-status")) { | |
2331 | int i; | |
2332 | ||
e364ad06 | 2333 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2334 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2335 | else |
2336 | s->main_exec_status.status = i; | |
799fd0fd LP |
2337 | } else if (streq(key, "main-exec-status-start")) |
2338 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2339 | else if (streq(key, "main-exec-status-exit")) | |
2340 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2341 | else if (streq(key, "watchdog-timestamp")) |
2342 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2343 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2344 | int b; |
2345 | ||
2346 | b = parse_boolean(value); | |
2347 | if (b < 0) | |
f2341e0a | 2348 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2349 | else |
2350 | s->forbid_restart = b; | |
a34ceba6 LP |
2351 | } else if (streq(key, "stdin-fd")) { |
2352 | int fd; | |
2353 | ||
2354 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2355 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2356 | else { | |
2357 | asynchronous_close(s->stdin_fd); | |
2358 | s->stdin_fd = fdset_remove(fds, fd); | |
2359 | } | |
2360 | } else if (streq(key, "stdout-fd")) { | |
2361 | int fd; | |
2362 | ||
2363 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2364 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2365 | else { | |
2366 | asynchronous_close(s->stdout_fd); | |
2367 | s->stdout_fd = fdset_remove(fds, fd); | |
2368 | } | |
2369 | } else if (streq(key, "stderr-fd")) { | |
2370 | int fd; | |
2371 | ||
2372 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2373 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2374 | else { | |
2375 | asynchronous_close(s->stderr_fd); | |
2376 | s->stderr_fd = fdset_remove(fds, fd); | |
2377 | } | |
c17ec25e | 2378 | } else |
f2341e0a | 2379 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2380 | |
2381 | return 0; | |
2382 | } | |
2383 | ||
44a6b1b6 | 2384 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2385 | const UnitActiveState *table; |
2386 | ||
87f0e418 | 2387 | assert(u); |
5cb5a6ff | 2388 | |
e056b01d LP |
2389 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2390 | ||
2391 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2392 | } |
2393 | ||
10a94420 LP |
2394 | static const char *service_sub_state_to_string(Unit *u) { |
2395 | assert(u); | |
2396 | ||
2397 | return service_state_to_string(SERVICE(u)->state); | |
2398 | } | |
2399 | ||
701cc384 LP |
2400 | static bool service_check_gc(Unit *u) { |
2401 | Service *s = SERVICE(u); | |
2402 | ||
2403 | assert(s); | |
2404 | ||
6d55002a LP |
2405 | /* Never clean up services that still have a process around, |
2406 | * even if the service is formally dead. */ | |
2407 | if (cgroup_good(s) > 0 || | |
2408 | main_pid_good(s) > 0 || | |
2409 | control_pid_good(s) > 0) | |
2410 | return true; | |
2411 | ||
6d55002a LP |
2412 | return false; |
2413 | } | |
2414 | ||
3a111838 MS |
2415 | static int service_retry_pid_file(Service *s) { |
2416 | int r; | |
2417 | ||
2418 | assert(s->pid_file); | |
2419 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2420 | ||
2421 | r = service_load_pid_file(s, false); | |
2422 | if (r < 0) | |
2423 | return r; | |
2424 | ||
2425 | service_unwatch_pid_file(s); | |
2426 | ||
f42806df | 2427 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2428 | return 0; |
2429 | } | |
2430 | ||
2431 | static int service_watch_pid_file(Service *s) { | |
2432 | int r; | |
2433 | ||
f2341e0a | 2434 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2435 | |
718db961 | 2436 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2437 | if (r < 0) |
2438 | goto fail; | |
2439 | ||
2440 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2441 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2442 | service_retry_pid_file(s); |
2443 | ||
2444 | return 0; | |
2445 | fail: | |
f2341e0a | 2446 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2447 | service_unwatch_pid_file(s); |
2448 | return r; | |
2449 | } | |
2450 | ||
2451 | static int service_demand_pid_file(Service *s) { | |
2452 | PathSpec *ps; | |
2453 | ||
2454 | assert(s->pid_file); | |
2455 | assert(!s->pid_file_pathspec); | |
2456 | ||
2457 | ps = new0(PathSpec, 1); | |
2458 | if (!ps) | |
2459 | return -ENOMEM; | |
2460 | ||
718db961 | 2461 | ps->unit = UNIT(s); |
3a111838 MS |
2462 | ps->path = strdup(s->pid_file); |
2463 | if (!ps->path) { | |
2464 | free(ps); | |
2465 | return -ENOMEM; | |
2466 | } | |
2467 | ||
2468 | path_kill_slashes(ps->path); | |
2469 | ||
2470 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2471 | * keep their PID file open all the time. */ | |
2472 | ps->type = PATH_MODIFIED; | |
2473 | ps->inotify_fd = -1; | |
2474 | ||
2475 | s->pid_file_pathspec = ps; | |
2476 | ||
2477 | return service_watch_pid_file(s); | |
2478 | } | |
2479 | ||
718db961 | 2480 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2481 | PathSpec *p = userdata; |
2482 | Service *s; | |
2483 | ||
2484 | assert(p); | |
2485 | ||
2486 | s = SERVICE(p->unit); | |
3a111838 MS |
2487 | |
2488 | assert(s); | |
2489 | assert(fd >= 0); | |
2490 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2491 | assert(s->pid_file_pathspec); | |
57020a3a | 2492 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2493 | |
f2341e0a | 2494 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2495 | |
e14c2802 | 2496 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2497 | goto fail; |
2498 | ||
2499 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2500 | return 0; |
3a111838 MS |
2501 | |
2502 | if (service_watch_pid_file(s) < 0) | |
2503 | goto fail; | |
2504 | ||
718db961 LP |
2505 | return 0; |
2506 | ||
3a111838 MS |
2507 | fail: |
2508 | service_unwatch_pid_file(s); | |
f42806df | 2509 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2510 | return 0; |
3a111838 MS |
2511 | } |
2512 | ||
a911bb9a LP |
2513 | static void service_notify_cgroup_empty_event(Unit *u) { |
2514 | Service *s = SERVICE(u); | |
2515 | ||
2516 | assert(u); | |
2517 | ||
f2341e0a | 2518 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2519 | |
2520 | switch (s->state) { | |
2521 | ||
2522 | /* Waiting for SIGCHLD is usually more interesting, | |
2523 | * because it includes return codes/signals. Which is | |
2524 | * why we ignore the cgroup events for most cases, | |
2525 | * except when we don't know pid which to expect the | |
2526 | * SIGCHLD for. */ | |
2527 | ||
2528 | case SERVICE_START: | |
2529 | case SERVICE_START_POST: | |
2530 | /* If we were hoping for the daemon to write its PID file, | |
2531 | * we can give up now. */ | |
2532 | if (s->pid_file_pathspec) { | |
f2341e0a | 2533 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2534 | |
a911bb9a LP |
2535 | service_unwatch_pid_file(s); |
2536 | if (s->state == SERVICE_START) | |
2537 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); | |
2538 | else | |
2539 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); | |
2540 | } | |
2541 | break; | |
2542 | ||
2543 | case SERVICE_RUNNING: | |
2544 | /* service_enter_running() will figure out what to do */ | |
2545 | service_enter_running(s, SERVICE_SUCCESS); | |
2546 | break; | |
2547 | ||
db2cb23b | 2548 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2549 | case SERVICE_STOP_SIGTERM: |
2550 | case SERVICE_STOP_SIGKILL: | |
2551 | ||
2552 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2553 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2554 | ||
2555 | break; | |
2556 | ||
2557 | case SERVICE_STOP_POST: | |
2558 | case SERVICE_FINAL_SIGTERM: | |
2559 | case SERVICE_FINAL_SIGKILL: | |
2560 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2561 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2562 | ||
2563 | break; | |
2564 | ||
2565 | default: | |
2566 | ; | |
2567 | } | |
2568 | } | |
2569 | ||
87f0e418 LP |
2570 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2571 | Service *s = SERVICE(u); | |
f42806df | 2572 | ServiceResult f; |
5cb5a6ff LP |
2573 | |
2574 | assert(s); | |
034c6ed7 LP |
2575 | assert(pid >= 0); |
2576 | ||
96342de6 LN |
2577 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2578 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2579 | f = SERVICE_SUCCESS; |
2580 | else if (code == CLD_EXITED) | |
2581 | f = SERVICE_FAILURE_EXIT_CODE; | |
2582 | else if (code == CLD_KILLED) | |
2583 | f = SERVICE_FAILURE_SIGNAL; | |
2584 | else if (code == CLD_DUMPED) | |
2585 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2586 | else |
cfc4eb4c | 2587 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2588 | |
2589 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2590 | /* Forking services may occasionally move to a new PID. |
2591 | * As long as they update the PID file before exiting the old | |
2592 | * PID, they're fine. */ | |
5375410b | 2593 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2594 | return; |
034c6ed7 | 2595 | |
034c6ed7 | 2596 | s->main_pid = 0; |
6ea832a2 | 2597 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2598 | |
867b3b7d | 2599 | if (s->main_command) { |
fbeefb45 LP |
2600 | /* If this is not a forking service than the |
2601 | * main process got started and hence we copy | |
2602 | * the exit status so that it is recorded both | |
2603 | * as main and as control process exit | |
2604 | * status */ | |
2605 | ||
867b3b7d | 2606 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2607 | |
867b3b7d | 2608 | if (s->main_command->ignore) |
f42806df | 2609 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2610 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2611 | ||
2612 | /* If this is a forked process, then we should | |
2613 | * ignore the return value if this was | |
2614 | * configured for the starter process */ | |
2615 | ||
2616 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2617 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2618 | } |
2619 | ||
f2341e0a LP |
2620 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2621 | LOG_UNIT_ID(u), | |
2622 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", | |
2623 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2624 | strna(code == CLD_EXITED |
2625 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2626 | : signal_to_string(status))), | |
f2341e0a LP |
2627 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2628 | "EXIT_STATUS=%i", status, | |
2629 | NULL); | |
f42806df LP |
2630 | |
2631 | if (f != SERVICE_SUCCESS) | |
2632 | s->result = f; | |
034c6ed7 | 2633 | |
867b3b7d LP |
2634 | if (s->main_command && |
2635 | s->main_command->command_next && | |
f42806df | 2636 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2637 | |
34e9ba66 LP |
2638 | /* There is another command to * |
2639 | * execute, so let's do that. */ | |
034c6ed7 | 2640 | |
f2341e0a | 2641 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2642 | service_run_next_main(s); |
034c6ed7 | 2643 | |
34e9ba66 LP |
2644 | } else { |
2645 | ||
2646 | /* The service exited, so the service is officially | |
2647 | * gone. */ | |
867b3b7d | 2648 | s->main_command = NULL; |
34e9ba66 LP |
2649 | |
2650 | switch (s->state) { | |
2651 | ||
2652 | case SERVICE_START_POST: | |
2653 | case SERVICE_RELOAD: | |
2654 | case SERVICE_STOP: | |
2655 | /* Need to wait until the operation is | |
2656 | * done */ | |
c4653a4d | 2657 | break; |
7d55e835 | 2658 | |
34e9ba66 LP |
2659 | case SERVICE_START: |
2660 | if (s->type == SERVICE_ONESHOT) { | |
2661 | /* This was our main goal, so let's go on */ | |
f42806df | 2662 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2663 | service_enter_start_post(s); |
2664 | else | |
f42806df | 2665 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2666 | break; |
34e9ba66 | 2667 | } |
034c6ed7 | 2668 | |
bfba3256 LP |
2669 | /* Fall through */ |
2670 | ||
34e9ba66 | 2671 | case SERVICE_RUNNING: |
f42806df | 2672 | service_enter_running(s, f); |
34e9ba66 | 2673 | break; |
034c6ed7 | 2674 | |
db2cb23b | 2675 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
2676 | case SERVICE_STOP_SIGTERM: |
2677 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2678 | |
34e9ba66 | 2679 | if (!control_pid_good(s)) |
f42806df | 2680 | service_enter_stop_post(s, f); |
5cb5a6ff | 2681 | |
34e9ba66 LP |
2682 | /* If there is still a control process, wait for that first */ |
2683 | break; | |
2684 | ||
bf108e55 LP |
2685 | case SERVICE_STOP_POST: |
2686 | case SERVICE_FINAL_SIGTERM: | |
2687 | case SERVICE_FINAL_SIGKILL: | |
2688 | ||
2689 | if (!control_pid_good(s)) | |
2690 | service_enter_dead(s, f, true); | |
2691 | break; | |
2692 | ||
34e9ba66 LP |
2693 | default: |
2694 | assert_not_reached("Uh, main process died at wrong time."); | |
2695 | } | |
034c6ed7 | 2696 | } |
5cb5a6ff | 2697 | |
034c6ed7 | 2698 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2699 | s->control_pid = 0; |
2700 | ||
b708e7ce | 2701 | if (s->control_command) { |
8bb2d17d | 2702 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2703 | |
b708e7ce | 2704 | if (s->control_command->ignore) |
f42806df | 2705 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2706 | } |
2707 | ||
f2341e0a LP |
2708 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
2709 | "Control process exited, code=%s status=%i", | |
2710 | sigchld_code_to_string(code), status); | |
f42806df LP |
2711 | |
2712 | if (f != SERVICE_SUCCESS) | |
2713 | s->result = f; | |
034c6ed7 | 2714 | |
88f3e0c9 LP |
2715 | /* Immediately get rid of the cgroup, so that the |
2716 | * kernel doesn't delay the cgroup empty messages for | |
2717 | * the service cgroup any longer than necessary */ | |
4ad49000 | 2718 | service_kill_control_processes(s); |
88f3e0c9 | 2719 | |
34e9ba66 LP |
2720 | if (s->control_command && |
2721 | s->control_command->command_next && | |
f42806df | 2722 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
2723 | |
2724 | /* There is another command to * | |
2725 | * execute, so let's do that. */ | |
2726 | ||
f2341e0a | 2727 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 2728 | service_run_next_control(s); |
034c6ed7 | 2729 | |
80876c20 | 2730 | } else { |
034c6ed7 LP |
2731 | /* No further commands for this step, so let's |
2732 | * figure out what to do next */ | |
2733 | ||
a16e1123 LP |
2734 | s->control_command = NULL; |
2735 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2736 | ||
f2341e0a | 2737 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 2738 | |
034c6ed7 LP |
2739 | switch (s->state) { |
2740 | ||
2741 | case SERVICE_START_PRE: | |
f42806df | 2742 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
2743 | service_enter_start(s); |
2744 | else | |
f42806df | 2745 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
2746 | break; |
2747 | ||
2748 | case SERVICE_START: | |
bfba3256 LP |
2749 | if (s->type != SERVICE_FORKING) |
2750 | /* Maybe spurious event due to a reload that changed the type? */ | |
2751 | break; | |
034c6ed7 | 2752 | |
f42806df LP |
2753 | if (f != SERVICE_SUCCESS) { |
2754 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
2755 | break; |
2756 | } | |
034c6ed7 | 2757 | |
3a111838 | 2758 | if (s->pid_file) { |
f42806df LP |
2759 | bool has_start_post; |
2760 | int r; | |
2761 | ||
3a111838 MS |
2762 | /* Let's try to load the pid file here if we can. |
2763 | * The PID file might actually be created by a START_POST | |
2764 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
2765 | |
2766 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
2767 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
2768 | if (!has_start_post && r < 0) { |
2769 | r = service_demand_pid_file(s); | |
2770 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2771 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2772 | break; |
2773 | } | |
034c6ed7 | 2774 | } else |
efdb0237 | 2775 | (void) service_search_main_pid(s); |
034c6ed7 | 2776 | |
3a111838 | 2777 | service_enter_start_post(s); |
034c6ed7 LP |
2778 | break; |
2779 | ||
2780 | case SERVICE_START_POST: | |
f42806df LP |
2781 | if (f != SERVICE_SUCCESS) { |
2782 | service_enter_stop(s, f); | |
2096e009 | 2783 | break; |
034c6ed7 LP |
2784 | } |
2785 | ||
2096e009 | 2786 | if (s->pid_file) { |
f42806df LP |
2787 | int r; |
2788 | ||
2789 | r = service_load_pid_file(s, true); | |
2096e009 MS |
2790 | if (r < 0) { |
2791 | r = service_demand_pid_file(s); | |
2792 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2793 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
2794 | break; |
2795 | } | |
2796 | } else | |
efdb0237 | 2797 | (void) service_search_main_pid(s); |
2096e009 | 2798 | |
f42806df | 2799 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 2800 | break; |
034c6ed7 LP |
2801 | |
2802 | case SERVICE_RELOAD: | |
f42806df | 2803 | if (f == SERVICE_SUCCESS) { |
5375410b | 2804 | service_load_pid_file(s, true); |
efdb0237 | 2805 | (void) service_search_main_pid(s); |
3185a36b LP |
2806 | } |
2807 | ||
f42806df LP |
2808 | s->reload_result = f; |
2809 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2810 | break; |
2811 | ||
2812 | case SERVICE_STOP: | |
f42806df | 2813 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
2814 | break; |
2815 | ||
db2cb23b | 2816 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
2817 | case SERVICE_STOP_SIGTERM: |
2818 | case SERVICE_STOP_SIGKILL: | |
2819 | if (main_pid_good(s) <= 0) | |
f42806df | 2820 | service_enter_stop_post(s, f); |
034c6ed7 LP |
2821 | |
2822 | /* If there is still a service | |
2823 | * process around, wait until | |
2824 | * that one quit, too */ | |
2825 | break; | |
2826 | ||
2827 | case SERVICE_STOP_POST: | |
2828 | case SERVICE_FINAL_SIGTERM: | |
2829 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
2830 | if (main_pid_good(s) <= 0) |
2831 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
2832 | break; |
2833 | ||
2834 | default: | |
2835 | assert_not_reached("Uh, control process died at wrong time."); | |
2836 | } | |
2837 | } | |
8c47c732 | 2838 | } |
c4e2ceae LP |
2839 | |
2840 | /* Notify clients about changed exit status */ | |
2841 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
2842 | |
2843 | /* We got one SIGCHLD for the service, let's watch all | |
2844 | * processes that are now running of the service, and watch | |
2845 | * that. Among the PIDs we then watch will be children | |
2846 | * reassigned to us, which hopefully allows us to identify | |
2847 | * when all children are gone */ | |
2848 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
2849 | unit_watch_all_pids(u); | |
2850 | ||
2851 | /* If the PID set is empty now, then let's finish this off */ | |
2852 | if (set_isempty(u->pids)) | |
2853 | service_notify_cgroup_empty_event(u); | |
034c6ed7 LP |
2854 | } |
2855 | ||
718db961 LP |
2856 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2857 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
2858 | |
2859 | assert(s); | |
718db961 | 2860 | assert(source == s->timer_event_source); |
034c6ed7 LP |
2861 | |
2862 | switch (s->state) { | |
2863 | ||
2864 | case SERVICE_START_PRE: | |
2865 | case SERVICE_START: | |
f2341e0a | 2866 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
f42806df | 2867 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
2868 | break; |
2869 | ||
034c6ed7 | 2870 | case SERVICE_START_POST: |
f2341e0a | 2871 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
f42806df | 2872 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2873 | break; |
2874 | ||
e2f3b44c | 2875 | case SERVICE_RELOAD: |
f2341e0a | 2876 | log_unit_warning(UNIT(s), "Reload operation timed out. Stopping."); |
478b6192 EV |
2877 | service_unwatch_control_pid(s); |
2878 | service_kill_control_processes(s); | |
f42806df LP |
2879 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
2880 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
2881 | break; |
2882 | ||
034c6ed7 | 2883 | case SERVICE_STOP: |
f2341e0a | 2884 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 2885 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2886 | break; |
2887 | ||
db2cb23b | 2888 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 2889 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 2890 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
2891 | break; |
2892 | ||
034c6ed7 | 2893 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 2894 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2895 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 2896 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2897 | } else { |
f2341e0a | 2898 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 2899 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
2900 | } |
2901 | ||
034c6ed7 LP |
2902 | break; |
2903 | ||
2904 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 2905 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
2906 | * Must be something we cannot kill, so let's just be |
2907 | * weirded out and continue */ | |
2908 | ||
f2341e0a | 2909 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 2910 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2911 | break; |
2912 | ||
2913 | case SERVICE_STOP_POST: | |
f2341e0a | 2914 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 2915 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2916 | break; |
2917 | ||
2918 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 2919 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2920 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 2921 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2922 | } else { |
f2341e0a | 2923 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 2924 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
2925 | } |
2926 | ||
034c6ed7 LP |
2927 | break; |
2928 | ||
2929 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 2930 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 2931 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
2932 | break; |
2933 | ||
2934 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 2935 | log_unit_info(UNIT(s), |
ef417cfd | 2936 | s->restart_usec > 0 ? |
f2341e0a LP |
2937 | "Service hold-off time over, scheduling restart." : |
2938 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
2939 | service_enter_restart(s); |
2940 | break; | |
2941 | ||
2942 | default: | |
2943 | assert_not_reached("Timeout at wrong time."); | |
2944 | } | |
718db961 LP |
2945 | |
2946 | return 0; | |
2947 | } | |
2948 | ||
2949 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
2950 | Service *s = SERVICE(userdata); | |
a7850c7d | 2951 | char t[FORMAT_TIMESPAN_MAX]; |
718db961 LP |
2952 | |
2953 | assert(s); | |
2954 | assert(source == s->watchdog_event_source); | |
2955 | ||
f2341e0a | 2956 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
a7850c7d | 2957 | format_timespan(t, sizeof(t), s->watchdog_usec, 1)); |
8bb2d17d | 2958 | |
db2cb23b | 2959 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 2960 | |
718db961 | 2961 | return 0; |
5cb5a6ff LP |
2962 | } |
2963 | ||
a354329f | 2964 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 2965 | Service *s = SERVICE(u); |
308d72dc | 2966 | _cleanup_free_ char *cc = NULL; |
30b5275a | 2967 | bool notify_dbus = false; |
308d72dc | 2968 | const char *e; |
8c47c732 LP |
2969 | |
2970 | assert(u); | |
2971 | ||
308d72dc | 2972 | cc = strv_join(tags, ", "); |
da13d4d2 | 2973 | |
c952c6ec | 2974 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 2975 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 2976 | return; |
34959677 | 2977 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 2978 | if (s->main_pid != 0) |
f2341e0a | 2979 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, pid, s->main_pid); |
336c6e46 | 2980 | else |
f2341e0a | 2981 | log_unit_debug(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", pid); |
c952c6ec | 2982 | return; |
34959677 TG |
2983 | } else |
2984 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 2985 | |
8c47c732 | 2986 | /* Interpret MAINPID= */ |
28849dba | 2987 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 2988 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 2989 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 2990 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
8c47c732 | 2991 | else { |
5925dd3c | 2992 | service_set_main_pid(s, pid); |
7400b9d2 | 2993 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 2994 | notify_dbus = true; |
8c47c732 LP |
2995 | } |
2996 | } | |
2997 | ||
308d72dc LP |
2998 | /* Interpret RELOADING= */ |
2999 | if (strv_find(tags, "RELOADING=1")) { | |
3000 | ||
308d72dc LP |
3001 | s->notify_state = NOTIFY_RELOADING; |
3002 | ||
3003 | if (s->state == SERVICE_RUNNING) | |
3004 | service_enter_reload_by_notify(s); | |
3005 | ||
3006 | notify_dbus = true; | |
3007 | } | |
3008 | ||
8c47c732 | 3009 | /* Interpret READY= */ |
308d72dc LP |
3010 | if (strv_find(tags, "READY=1")) { |
3011 | ||
308d72dc LP |
3012 | s->notify_state = NOTIFY_READY; |
3013 | ||
3014 | /* Type=notify services inform us about completed | |
3015 | * initialization with READY=1 */ | |
3016 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3017 | service_enter_start_post(s); | |
3018 | ||
3019 | /* Sending READY=1 while we are reloading informs us | |
3020 | * that the reloading is complete */ | |
3021 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3022 | service_enter_running(s, SERVICE_SUCCESS); | |
3023 | ||
3024 | notify_dbus = true; | |
3025 | } | |
3026 | ||
3027 | /* Interpret STOPPING= */ | |
3028 | if (strv_find(tags, "STOPPING=1")) { | |
3029 | ||
308d72dc LP |
3030 | s->notify_state = NOTIFY_STOPPING; |
3031 | ||
3032 | if (s->state == SERVICE_RUNNING) | |
3033 | service_enter_stop_by_notify(s); | |
3034 | ||
30b5275a | 3035 | notify_dbus = true; |
8c47c732 LP |
3036 | } |
3037 | ||
3038 | /* Interpret STATUS= */ | |
28849dba | 3039 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3040 | if (e) { |
28849dba | 3041 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3042 | |
28849dba LP |
3043 | if (!isempty(e)) { |
3044 | if (!utf8_is_valid(e)) | |
f2341e0a | 3045 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 3046 | else { |
28849dba LP |
3047 | t = strdup(e); |
3048 | if (!t) | |
3049 | log_oom(); | |
3a2776bc | 3050 | } |
28849dba | 3051 | } |
8c47c732 | 3052 | |
30b5275a | 3053 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3054 | |
3a2776bc LP |
3055 | free(s->status_text); |
3056 | s->status_text = t; | |
28849dba LP |
3057 | t = NULL; |
3058 | ||
30b5275a | 3059 | notify_dbus = true; |
28849dba | 3060 | } |
8c47c732 | 3061 | } |
842129f5 | 3062 | |
4774e357 | 3063 | /* Interpret ERRNO= */ |
28849dba | 3064 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3065 | if (e) { |
3066 | int status_errno; | |
3067 | ||
28849dba | 3068 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3069 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3070 | else { |
4774e357 MAA |
3071 | if (s->status_errno != status_errno) { |
3072 | s->status_errno = status_errno; | |
3073 | notify_dbus = true; | |
3074 | } | |
3075 | } | |
3076 | } | |
3077 | ||
6f285378 | 3078 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3079 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3080 | service_reset_watchdog(s); |
c4e2ceae | 3081 | |
8dd4c05b LP |
3082 | if (strv_find(tags, "FDSTORE=1")) { |
3083 | const char *name; | |
3084 | ||
3085 | name = strv_find_startswith(tags, "FDNAME="); | |
3086 | if (name && !fdname_is_valid(name)) { | |
3087 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3088 | name = NULL; | |
3089 | } | |
3090 | ||
3091 | service_add_fd_store_set(s, fds, name); | |
3092 | } | |
a354329f | 3093 | |
c4e2ceae | 3094 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3095 | if (notify_dbus) |
3096 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3097 | } |
3098 | ||
68db7a3b ZJS |
3099 | static int service_get_timeout(Unit *u, uint64_t *timeout) { |
3100 | Service *s = SERVICE(u); | |
3101 | int r; | |
3102 | ||
3103 | if (!s->timer_event_source) | |
3104 | return 0; | |
3105 | ||
3106 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
3107 | if (r < 0) | |
3108 | return r; | |
3109 | ||
3110 | return 1; | |
3111 | } | |
3112 | ||
05e343b7 LP |
3113 | static void service_bus_name_owner_change( |
3114 | Unit *u, | |
3115 | const char *name, | |
3116 | const char *old_owner, | |
3117 | const char *new_owner) { | |
3118 | ||
3119 | Service *s = SERVICE(u); | |
718db961 | 3120 | int r; |
05e343b7 LP |
3121 | |
3122 | assert(s); | |
3123 | assert(name); | |
3124 | ||
3125 | assert(streq(s->bus_name, name)); | |
3126 | assert(old_owner || new_owner); | |
3127 | ||
3128 | if (old_owner && new_owner) | |
f2341e0a | 3129 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3130 | else if (old_owner) |
f2341e0a | 3131 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3132 | else |
f2341e0a | 3133 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3134 | |
3135 | s->bus_name_good = !!new_owner; | |
3136 | ||
3137 | if (s->type == SERVICE_DBUS) { | |
3138 | ||
3139 | /* service_enter_running() will figure out what to | |
3140 | * do */ | |
3141 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3142 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3143 | else if (s->state == SERVICE_START && new_owner) |
3144 | service_enter_start_post(s); | |
3145 | ||
3146 | } else if (new_owner && | |
3147 | s->main_pid <= 0 && | |
3148 | (s->state == SERVICE_START || | |
3149 | s->state == SERVICE_START_POST || | |
3150 | s->state == SERVICE_RUNNING || | |
3151 | s->state == SERVICE_RELOAD)) { | |
3152 | ||
5b12334d | 3153 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 | 3154 | pid_t pid; |
05e343b7 | 3155 | |
718db961 | 3156 | /* Try to acquire PID from bus service */ |
05e343b7 | 3157 | |
056f95d0 | 3158 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3159 | if (r >= 0) |
3160 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3161 | if (r >= 0) { |
f2341e0a | 3162 | log_unit_debug(u, "D-Bus name %s is now owned by process %u", name, (unsigned) pid); |
05e343b7 | 3163 | |
718db961 LP |
3164 | service_set_main_pid(s, pid); |
3165 | unit_watch_pid(UNIT(s), pid); | |
3166 | } | |
7400b9d2 | 3167 | } |
05e343b7 LP |
3168 | } |
3169 | ||
16115b0a | 3170 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3171 | _cleanup_free_ char *peer = NULL; |
3172 | int r; | |
57020a3a | 3173 | |
4f2d528d LP |
3174 | assert(s); |
3175 | assert(fd >= 0); | |
3176 | ||
3177 | /* This is called by the socket code when instantiating a new | |
3178 | * service for a stream socket and the socket needs to be | |
3179 | * configured. */ | |
3180 | ||
1124fe6f | 3181 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3182 | return -EINVAL; |
3183 | ||
3184 | if (s->socket_fd >= 0) | |
3185 | return -EBUSY; | |
3186 | ||
3187 | if (s->state != SERVICE_DEAD) | |
3188 | return -EAGAIN; | |
3189 | ||
79a98c60 LP |
3190 | if (getpeername_pretty(fd, &peer) >= 0) { |
3191 | ||
3192 | if (UNIT(s)->description) { | |
3193 | _cleanup_free_ char *a; | |
3194 | ||
3195 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
3196 | if (!a) | |
3197 | return -ENOMEM; | |
3198 | ||
3199 | r = unit_set_description(UNIT(s), a); | |
3200 | } else | |
3201 | r = unit_set_description(UNIT(s), peer); | |
3202 | ||
3203 | if (r < 0) | |
3204 | return r; | |
3205 | } | |
3206 | ||
4f2d528d | 3207 | s->socket_fd = fd; |
16115b0a | 3208 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3209 | |
57020a3a LP |
3210 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
3211 | ||
3212 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
3213 | } |
3214 | ||
fdf20a31 | 3215 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3216 | Service *s = SERVICE(u); |
3217 | ||
3218 | assert(s); | |
3219 | ||
fdf20a31 | 3220 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3221 | service_set_state(s, SERVICE_DEAD); |
3222 | ||
f42806df LP |
3223 | s->result = SERVICE_SUCCESS; |
3224 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
3225 | |
3226 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
3227 | } |
3228 | ||
718db961 | 3229 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3230 | Service *s = SERVICE(u); |
41efeaec | 3231 | |
814cc562 | 3232 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3233 | } |
3234 | ||
94f04347 | 3235 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3236 | [SERVICE_RESTART_NO] = "no", |
3237 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3238 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3239 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3240 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3241 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3242 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3243 | }; |
3244 | ||
3245 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3246 | ||
3247 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3248 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3249 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3250 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3251 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3252 | [SERVICE_NOTIFY] = "notify", |
3253 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3254 | }; |
3255 | ||
3256 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3257 | ||
e537352b | 3258 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3259 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3260 | [SERVICE_EXEC_START] = "ExecStart", | |
3261 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3262 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3263 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3264 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3265 | }; | |
3266 | ||
3267 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3268 | ||
c952c6ec LP |
3269 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3270 | [NOTIFY_NONE] = "none", | |
3271 | [NOTIFY_MAIN] = "main", | |
3272 | [NOTIFY_ALL] = "all" | |
3273 | }; | |
3274 | ||
3275 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3276 | ||
308d72dc LP |
3277 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3278 | [NOTIFY_UNKNOWN] = "unknown", | |
3279 | [NOTIFY_READY] = "ready", | |
3280 | [NOTIFY_RELOADING] = "reloading", | |
3281 | [NOTIFY_STOPPING] = "stopping", | |
3282 | }; | |
3283 | ||
3284 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3285 | ||
f42806df LP |
3286 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3287 | [SERVICE_SUCCESS] = "success", | |
3288 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3289 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3290 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3291 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3292 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
3293 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
3294 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
3295 | }; |
3296 | ||
3297 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3298 | ||
87f0e418 | 3299 | const UnitVTable service_vtable = { |
7d17cfbc | 3300 | .object_size = sizeof(Service), |
718db961 LP |
3301 | .exec_context_offset = offsetof(Service, exec_context), |
3302 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3303 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3304 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3305 | |
f975e971 LP |
3306 | .sections = |
3307 | "Unit\0" | |
3308 | "Service\0" | |
3309 | "Install\0", | |
4ad49000 | 3310 | .private_section = "Service", |
71645aca | 3311 | |
034c6ed7 LP |
3312 | .init = service_init, |
3313 | .done = service_done, | |
a16e1123 | 3314 | .load = service_load, |
a354329f | 3315 | .release_resources = service_release_resources, |
a16e1123 LP |
3316 | |
3317 | .coldplug = service_coldplug, | |
034c6ed7 | 3318 | |
5cb5a6ff LP |
3319 | .dump = service_dump, |
3320 | ||
3321 | .start = service_start, | |
3322 | .stop = service_stop, | |
3323 | .reload = service_reload, | |
3324 | ||
034c6ed7 LP |
3325 | .can_reload = service_can_reload, |
3326 | ||
8a0867d6 LP |
3327 | .kill = service_kill, |
3328 | ||
a16e1123 LP |
3329 | .serialize = service_serialize, |
3330 | .deserialize_item = service_deserialize_item, | |
3331 | ||
5cb5a6ff | 3332 | .active_state = service_active_state, |
10a94420 | 3333 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3334 | |
701cc384 | 3335 | .check_gc = service_check_gc, |
701cc384 | 3336 | |
034c6ed7 | 3337 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3338 | |
fdf20a31 | 3339 | .reset_failed = service_reset_failed, |
5632e374 | 3340 | |
4ad49000 | 3341 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3342 | .notify_message = service_notify_message, |
8e274523 | 3343 | |
05e343b7 | 3344 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3345 | |
718db961 | 3346 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3347 | .bus_set_property = bus_service_set_property, |
3348 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3349 | |
68db7a3b | 3350 | .get_timeout = service_get_timeout, |
718db961 LP |
3351 | .can_transient = true, |
3352 | ||
c6918296 MS |
3353 | .status_message_formats = { |
3354 | .starting_stopping = { | |
3355 | [0] = "Starting %s...", | |
3356 | [1] = "Stopping %s...", | |
3357 | }, | |
3358 | .finished_start_job = { | |
3359 | [JOB_DONE] = "Started %s.", | |
3360 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3361 | }, |
3362 | .finished_stop_job = { | |
3363 | [JOB_DONE] = "Stopped %s.", | |
3364 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3365 | }, |
3366 | }, | |
5cb5a6ff | 3367 | }; |