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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 | ||
d8ccf5fd DM |
326 | s->bus_name_owner = mfree(s->bus_name_owner); |
327 | ||
e44da745 | 328 | s->bus_endpoint_fd = safe_close(s->bus_endpoint_fd); |
4f2d528d | 329 | service_close_socket_fd(s); |
6cf6bbc2 | 330 | service_connection_unref(s); |
4f2d528d | 331 | |
57020a3a | 332 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 333 | |
bb242b7b MO |
334 | service_stop_watchdog(s); |
335 | ||
718db961 | 336 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
a354329f LP |
337 | |
338 | service_release_resources(u); | |
718db961 LP |
339 | } |
340 | ||
2339fc93 LP |
341 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
342 | ServiceFDStore *fs = userdata; | |
343 | ||
344 | assert(e); | |
345 | assert(fs); | |
346 | ||
347 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
348 | service_fd_store_unlink(fs); | |
349 | return 0; | |
350 | } | |
351 | ||
8dd4c05b | 352 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
353 | ServiceFDStore *fs; |
354 | int r; | |
355 | ||
356 | assert(s); | |
357 | assert(fd >= 0); | |
358 | ||
359 | if (s->n_fd_store >= s->n_fd_store_max) | |
360 | return 0; | |
361 | ||
362 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
363 | r = same_fd(fs->fd, fd); | |
364 | if (r < 0) | |
365 | return r; | |
366 | if (r > 0) { | |
367 | /* Already included */ | |
368 | safe_close(fd); | |
369 | return 1; | |
370 | } | |
371 | } | |
372 | ||
373 | fs = new0(ServiceFDStore, 1); | |
374 | if (!fs) | |
375 | return -ENOMEM; | |
376 | ||
377 | fs->fd = fd; | |
378 | fs->service = s; | |
8dd4c05b | 379 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 380 | if (!fs->fdname) { |
381 | free(fs); | |
8dd4c05b | 382 | return -ENOMEM; |
17dec0f7 | 383 | } |
2339fc93 LP |
384 | |
385 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
386 | if (r < 0) { | |
8dd4c05b | 387 | free(fs->fdname); |
2339fc93 LP |
388 | free(fs); |
389 | return r; | |
390 | } | |
391 | ||
7dfbe2e3 TG |
392 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); |
393 | ||
2339fc93 LP |
394 | LIST_PREPEND(fd_store, s->fd_store, fs); |
395 | s->n_fd_store++; | |
396 | ||
397 | return 1; | |
398 | } | |
399 | ||
8dd4c05b | 400 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
401 | int r; |
402 | ||
403 | assert(s); | |
404 | ||
405 | if (fdset_size(fds) <= 0) | |
406 | return 0; | |
407 | ||
408 | while (s->n_fd_store < s->n_fd_store_max) { | |
409 | _cleanup_close_ int fd = -1; | |
410 | ||
411 | fd = fdset_steal_first(fds); | |
412 | if (fd < 0) | |
413 | break; | |
414 | ||
8dd4c05b | 415 | r = service_add_fd_store(s, fd, name); |
2339fc93 | 416 | if (r < 0) |
f2341e0a | 417 | return log_unit_error_errno(UNIT(s), r, "Couldn't add fd to fd store: %m"); |
2339fc93 | 418 | if (r > 0) { |
f2341e0a | 419 | log_unit_debug(UNIT(s), "Added fd to fd store."); |
2339fc93 LP |
420 | fd = -1; |
421 | } | |
422 | } | |
423 | ||
424 | if (fdset_size(fds) > 0) | |
4b172825 | 425 | log_unit_warning(UNIT(s), "Tried to store more fds than FileDescriptorStoreMax=%u allows, closing remaining.", s->n_fd_store_max); |
2339fc93 LP |
426 | |
427 | return 0; | |
428 | } | |
429 | ||
718db961 LP |
430 | static int service_arm_timer(Service *s, usec_t usec) { |
431 | int r; | |
432 | ||
433 | assert(s); | |
434 | ||
718db961 LP |
435 | if (s->timer_event_source) { |
436 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
437 | if (r < 0) | |
438 | return r; | |
439 | ||
440 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
441 | } | |
442 | ||
7dfbe2e3 | 443 | r = sd_event_add_time( |
6a0f1f6d LP |
444 | UNIT(s)->manager->event, |
445 | &s->timer_event_source, | |
446 | CLOCK_MONOTONIC, | |
447 | now(CLOCK_MONOTONIC) + usec, 0, | |
448 | service_dispatch_timer, s); | |
7dfbe2e3 TG |
449 | if (r < 0) |
450 | return r; | |
451 | ||
452 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
453 | ||
454 | return 0; | |
44d8db9e LP |
455 | } |
456 | ||
243b1432 LP |
457 | static int service_verify(Service *s) { |
458 | assert(s); | |
459 | ||
1124fe6f | 460 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
461 | return 0; |
462 | ||
96fb8242 | 463 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) { |
f2341e0a | 464 | log_unit_error(UNIT(s), "Service lacks both ExecStart= and ExecStop= setting. Refusing."); |
243b1432 LP |
465 | return -EINVAL; |
466 | } | |
467 | ||
96fb8242 | 468 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 469 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
96fb8242 LP |
470 | return -EINVAL; |
471 | } | |
472 | ||
473 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START]) { | |
f2341e0a | 474 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for RemainAfterExit=yes services. Refusing."); |
96fb8242 LP |
475 | return -EINVAL; |
476 | } | |
477 | ||
478 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 479 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6cf6bbc2 LP |
480 | return -EINVAL; |
481 | } | |
482 | ||
b0693d30 | 483 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
f2341e0a | 484 | log_unit_error(UNIT(s), "Service has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing."); |
37520c1b LP |
485 | return -EINVAL; |
486 | } | |
487 | ||
55ebf98c | 488 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 489 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
b0693d30 MW |
490 | return -EINVAL; |
491 | } | |
492 | ||
05e343b7 | 493 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 494 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
4d0e5dbd LP |
495 | return -EINVAL; |
496 | } | |
497 | ||
7e2668c6 | 498 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 499 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 500 | |
ebc2259d | 501 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
f2341e0a | 502 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
05e343b7 LP |
503 | return -EINVAL; |
504 | } | |
505 | ||
6b7e5923 PS |
506 | if (s->usb_function_descriptors && !s->usb_function_strings) |
507 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
508 | ||
509 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
510 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
511 | ||
243b1432 LP |
512 | return 0; |
513 | } | |
514 | ||
a40eb732 LP |
515 | static int service_add_default_dependencies(Service *s) { |
516 | int r; | |
517 | ||
518 | assert(s); | |
519 | ||
45f06b34 LP |
520 | if (!UNIT(s)->default_dependencies) |
521 | return 0; | |
522 | ||
a40eb732 LP |
523 | /* Add a number of automatic dependencies useful for the |
524 | * majority of services. */ | |
525 | ||
cb4c247d LP |
526 | if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) { |
527 | /* First, pull in the really early boot stuff, and | |
528 | * require it, so that we fail if we can't acquire | |
529 | * it. */ | |
530 | ||
531 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
532 | if (r < 0) | |
533 | return r; | |
534 | } else { | |
535 | ||
536 | /* In the --user instance there's no sysinit.target, | |
537 | * in that case require basic.target instead. */ | |
538 | ||
539 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); | |
540 | if (r < 0) | |
541 | return r; | |
542 | } | |
543 | ||
544 | /* Second, if the rest of the base system is in the same | |
545 | * transaction, order us after it, but do not pull it in or | |
546 | * even require it. */ | |
547 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true); | |
fccd44ec KS |
548 | if (r < 0) |
549 | return r; | |
a40eb732 | 550 | |
cb4c247d | 551 | /* Third, add us in for normal shutdown. */ |
8545f7ce | 552 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
553 | } |
554 | ||
4dfc092a LP |
555 | static void service_fix_output(Service *s) { |
556 | assert(s); | |
557 | ||
558 | /* If nothing has been explicitly configured, patch default | |
559 | * output in. If input is socket/tty we avoid this however, | |
560 | * since in that case we want output to default to the same | |
561 | * place as we read input from. */ | |
562 | ||
563 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
564 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
565 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 566 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
567 | |
568 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
569 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 570 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
571 | } |
572 | ||
45f06b34 LP |
573 | static int service_setup_bus_name(Service *s) { |
574 | int r; | |
575 | ||
576 | assert(s); | |
577 | ||
578 | if (!s->bus_name) | |
579 | return 0; | |
580 | ||
581 | if (is_kdbus_available()) { | |
582 | const char *n; | |
583 | ||
584 | n = strjoina(s->bus_name, ".busname"); | |
585 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, n, NULL, true); | |
586 | if (r < 0) | |
587 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency to .busname unit: %m"); | |
588 | ||
589 | } else { | |
590 | /* If kdbus is not available, we know the dbus socket is required, hence pull it in, and require it */ | |
591 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true); | |
592 | if (r < 0) | |
593 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
594 | } | |
595 | ||
596 | /* Regardless if kdbus is used or not, we always want to be ordered against dbus.socket if both are in the transaction. */ | |
597 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, NULL, true); | |
598 | if (r < 0) | |
92bed462 | 599 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
600 | |
601 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
602 | if (r == -EEXIST) | |
603 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
604 | if (r < 0) | |
605 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
8545f7ce LP |
610 | static int service_add_extras(Service *s) { |
611 | int r; | |
612 | ||
613 | assert(s); | |
614 | ||
615 | if (s->type == _SERVICE_TYPE_INVALID) { | |
616 | /* Figure out a type automatically */ | |
617 | if (s->bus_name) | |
618 | s->type = SERVICE_DBUS; | |
619 | else if (s->exec_command[SERVICE_EXEC_START]) | |
620 | s->type = SERVICE_SIMPLE; | |
621 | else | |
622 | s->type = SERVICE_ONESHOT; | |
623 | } | |
624 | ||
625 | /* Oneshot services have disabled start timeout by default */ | |
626 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
627 | s->timeout_start_usec = 0; | |
628 | ||
629 | service_fix_output(s); | |
630 | ||
631 | r = unit_patch_contexts(UNIT(s)); | |
632 | if (r < 0) | |
633 | return r; | |
634 | ||
635 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
636 | if (r < 0) | |
637 | return r; | |
638 | ||
d79200e2 | 639 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
640 | if (r < 0) |
641 | return r; | |
642 | ||
643 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
644 | s->notify_access = NOTIFY_MAIN; | |
645 | ||
646 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) | |
647 | s->notify_access = NOTIFY_MAIN; | |
648 | ||
45f06b34 LP |
649 | r = service_add_default_dependencies(s); |
650 | if (r < 0) | |
651 | return r; | |
8545f7ce | 652 | |
45f06b34 LP |
653 | r = service_setup_bus_name(s); |
654 | if (r < 0) | |
655 | return r; | |
8545f7ce LP |
656 | |
657 | return 0; | |
658 | } | |
659 | ||
e537352b | 660 | static int service_load(Unit *u) { |
e537352b | 661 | Service *s = SERVICE(u); |
8bb2d17d | 662 | int r; |
e537352b LP |
663 | |
664 | assert(s); | |
1e2e8133 | 665 | |
5cb5a6ff | 666 | /* Load a .service file */ |
c2756a68 LP |
667 | r = unit_load_fragment(u); |
668 | if (r < 0) | |
5cb5a6ff LP |
669 | return r; |
670 | ||
23a177ef | 671 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 672 | if (u->load_state == UNIT_STUB) |
23a177ef | 673 | return -ENOENT; |
034c6ed7 | 674 | |
23a177ef | 675 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 676 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
677 | |
678 | /* We were able to load something, then let's add in | |
679 | * the dropin directories. */ | |
680 | r = unit_load_dropin(u); | |
681 | if (r < 0) | |
682 | return r; | |
683 | ||
8545f7ce LP |
684 | /* This is a new unit? Then let's add in some |
685 | * extras */ | |
686 | r = service_add_extras(s); | |
598459ce LP |
687 | if (r < 0) |
688 | return r; | |
8e274523 LP |
689 | } |
690 | ||
243b1432 | 691 | return service_verify(s); |
034c6ed7 LP |
692 | } |
693 | ||
87f0e418 | 694 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 695 | ServiceExecCommand c; |
87f0e418 | 696 | Service *s = SERVICE(u); |
47be870b | 697 | const char *prefix2; |
5cb5a6ff LP |
698 | |
699 | assert(s); | |
700 | ||
4c940960 | 701 | prefix = strempty(prefix); |
63c372cb | 702 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 703 | |
5cb5a6ff | 704 | fprintf(f, |
81a2b7ce | 705 | "%sService State: %s\n" |
f42806df LP |
706 | "%sResult: %s\n" |
707 | "%sReload Result: %s\n" | |
81a2b7ce | 708 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 709 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 710 | "%sRemainAfterExit: %s\n" |
3185a36b | 711 | "%sGuessMainPID: %s\n" |
c952c6ec | 712 | "%sType: %s\n" |
2cf3143a | 713 | "%sRestart: %s\n" |
308d72dc LP |
714 | "%sNotifyAccess: %s\n" |
715 | "%sNotifyState: %s\n", | |
81a2b7ce | 716 | prefix, service_state_to_string(s->state), |
f42806df LP |
717 | prefix, service_result_to_string(s->result), |
718 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 719 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 720 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 721 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 722 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 723 | prefix, service_type_to_string(s->type), |
2cf3143a | 724 | prefix, service_restart_to_string(s->restart), |
308d72dc LP |
725 | prefix, notify_access_to_string(s->notify_access), |
726 | prefix, notify_state_to_string(s->notify_state)); | |
5cb5a6ff | 727 | |
70123e68 LP |
728 | if (s->control_pid > 0) |
729 | fprintf(f, | |
ccd06097 ZJS |
730 | "%sControl PID: "PID_FMT"\n", |
731 | prefix, s->control_pid); | |
70123e68 LP |
732 | |
733 | if (s->main_pid > 0) | |
734 | fprintf(f, | |
ccd06097 | 735 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
736 | "%sMain PID Known: %s\n" |
737 | "%sMain PID Alien: %s\n", | |
ccd06097 | 738 | prefix, s->main_pid, |
6dfa5494 LP |
739 | prefix, yes_no(s->main_pid_known), |
740 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 741 | |
034c6ed7 LP |
742 | if (s->pid_file) |
743 | fprintf(f, | |
744 | "%sPIDFile: %s\n", | |
745 | prefix, s->pid_file); | |
746 | ||
05e343b7 LP |
747 | if (s->bus_name) |
748 | fprintf(f, | |
749 | "%sBusName: %s\n" | |
750 | "%sBus Name Good: %s\n", | |
751 | prefix, s->bus_name, | |
752 | prefix, yes_no(s->bus_name_good)); | |
753 | ||
4819ff03 | 754 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
755 | exec_context_dump(&s->exec_context, f, prefix); |
756 | ||
e537352b | 757 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 758 | |
44d8db9e LP |
759 | if (!s->exec_command[c]) |
760 | continue; | |
761 | ||
40d50879 | 762 | fprintf(f, "%s-> %s:\n", |
94f04347 | 763 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
764 | |
765 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 766 | } |
44d8db9e | 767 | |
8c47c732 LP |
768 | if (s->status_text) |
769 | fprintf(f, "%sStatus Text: %s\n", | |
770 | prefix, s->status_text); | |
a354329f | 771 | |
ece174c5 | 772 | if (s->n_fd_store_max > 0) |
a354329f LP |
773 | fprintf(f, |
774 | "%sFile Descriptor Store Max: %u\n" | |
775 | "%sFile Descriptor Store Current: %u\n", | |
776 | prefix, s->n_fd_store_max, | |
777 | prefix, s->n_fd_store); | |
5cb5a6ff LP |
778 | } |
779 | ||
c5419d42 | 780 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 781 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 782 | int r; |
5925dd3c | 783 | pid_t pid; |
034c6ed7 LP |
784 | |
785 | assert(s); | |
786 | ||
034c6ed7 | 787 | if (!s->pid_file) |
13230d5d | 788 | return -ENOENT; |
034c6ed7 | 789 | |
117dcc57 ZJS |
790 | r = read_one_line_file(s->pid_file, &k); |
791 | if (r < 0) { | |
c5419d42 | 792 | if (may_warn) |
f2341e0a | 793 | 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 | 794 | return r; |
5375410b | 795 | } |
034c6ed7 | 796 | |
5925dd3c | 797 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
798 | if (r < 0) { |
799 | if (may_warn) | |
f2341e0a | 800 | log_unit_info_errno(UNIT(s), r, "Failed to read PID from file %s: %m", s->pid_file); |
5925dd3c | 801 | return r; |
bc41f93e | 802 | } |
406eaf93 | 803 | |
9f5650ae | 804 | if (!pid_is_alive(pid)) { |
c5419d42 | 805 | if (may_warn) |
f2341e0a | 806 | 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 |
807 | return -ESRCH; |
808 | } | |
809 | ||
db01f8b3 MS |
810 | if (s->main_pid_known) { |
811 | if (pid == s->main_pid) | |
812 | return 0; | |
813 | ||
f2341e0a | 814 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 815 | |
db01f8b3 MS |
816 | service_unwatch_main_pid(s); |
817 | s->main_pid_known = false; | |
3a111838 | 818 | } else |
f2341e0a | 819 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 820 | |
117dcc57 ZJS |
821 | r = service_set_main_pid(s, pid); |
822 | if (r < 0) | |
16f6025e LP |
823 | return r; |
824 | ||
117dcc57 | 825 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 826 | if (r < 0) { |
5925dd3c | 827 | /* FIXME: we need to do something here */ |
f2341e0a | 828 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); |
5925dd3c | 829 | return r; |
bc41f93e | 830 | } |
034c6ed7 LP |
831 | |
832 | return 0; | |
833 | } | |
834 | ||
4fbf50b3 | 835 | static int service_search_main_pid(Service *s) { |
efdb0237 | 836 | pid_t pid = 0; |
4fbf50b3 LP |
837 | int r; |
838 | ||
839 | assert(s); | |
840 | ||
3185a36b LP |
841 | /* If we know it anyway, don't ever fallback to unreliable |
842 | * heuristics */ | |
4fbf50b3 LP |
843 | if (s->main_pid_known) |
844 | return 0; | |
845 | ||
3185a36b LP |
846 | if (!s->guess_main_pid) |
847 | return 0; | |
848 | ||
4fbf50b3 LP |
849 | assert(s->main_pid <= 0); |
850 | ||
efdb0237 LP |
851 | r = unit_search_main_pid(UNIT(s), &pid); |
852 | if (r < 0) | |
853 | return r; | |
4fbf50b3 | 854 | |
f2341e0a | 855 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
117dcc57 ZJS |
856 | r = service_set_main_pid(s, pid); |
857 | if (r < 0) | |
4fbf50b3 LP |
858 | return r; |
859 | ||
117dcc57 | 860 | r = unit_watch_pid(UNIT(s), pid); |
8bb2d17d | 861 | if (r < 0) { |
4fbf50b3 | 862 | /* FIXME: we need to do something here */ |
f2341e0a | 863 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
8bb2d17d LP |
864 | return r; |
865 | } | |
866 | ||
867 | return 0; | |
4fbf50b3 LP |
868 | } |
869 | ||
034c6ed7 LP |
870 | static void service_set_state(Service *s, ServiceState state) { |
871 | ServiceState old_state; | |
e056b01d | 872 | const UnitActiveState *table; |
842129f5 | 873 | |
5cb5a6ff LP |
874 | assert(s); |
875 | ||
e056b01d LP |
876 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
877 | ||
034c6ed7 | 878 | old_state = s->state; |
5cb5a6ff | 879 | s->state = state; |
034c6ed7 | 880 | |
3a111838 MS |
881 | service_unwatch_pid_file(s); |
882 | ||
842129f5 LP |
883 | if (!IN_SET(state, |
884 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
885 | SERVICE_RELOAD, | |
57614eb1 | 886 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 LP |
887 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
888 | SERVICE_AUTO_RESTART)) | |
718db961 | 889 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 890 | |
842129f5 LP |
891 | if (!IN_SET(state, |
892 | SERVICE_START, SERVICE_START_POST, | |
893 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 | 894 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 895 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 896 | service_unwatch_main_pid(s); |
867b3b7d LP |
897 | s->main_command = NULL; |
898 | } | |
034c6ed7 | 899 | |
842129f5 LP |
900 | if (!IN_SET(state, |
901 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
902 | SERVICE_RELOAD, | |
57614eb1 | 903 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 904 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 905 | service_unwatch_control_pid(s); |
034c6ed7 | 906 | s->control_command = NULL; |
a16e1123 | 907 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 908 | } |
034c6ed7 | 909 | |
a911bb9a LP |
910 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
911 | unit_unwatch_all_pids(UNIT(s)); | |
912 | ||
842129f5 LP |
913 | if (!IN_SET(state, |
914 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
915 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 LP |
916 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
917 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 918 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 919 | service_close_socket_fd(s); |
6cf6bbc2 LP |
920 | service_connection_unref(s); |
921 | } | |
4f2d528d | 922 | |
7596e9e1 | 923 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
924 | service_stop_watchdog(s); |
925 | ||
f6023656 LP |
926 | /* For the inactive states unit_notify() will trim the cgroup, |
927 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 928 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
efdb0237 | 929 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 930 | |
9cd86184 OB |
931 | /* For remain_after_exit services, let's see if we can "release" the |
932 | * hold on the console, since unit_notify() only does that in case of | |
933 | * change of state */ | |
f49650ce LP |
934 | if (state == SERVICE_EXITED && |
935 | s->remain_after_exit && | |
9cd86184 | 936 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
937 | |
938 | ExecContext *ec; | |
939 | ||
940 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
941 | if (ec && exec_context_may_touch_console(ec)) { |
942 | Manager *m = UNIT(s)->manager; | |
943 | ||
944 | m->n_on_console --; | |
945 | if (m->n_on_console == 0) | |
946 | /* unset no_console_output flag, since the console is free */ | |
947 | m->no_console_output = false; | |
948 | } | |
949 | } | |
950 | ||
e537352b | 951 | if (old_state != state) |
f2341e0a | 952 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 953 | |
e056b01d | 954 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
034c6ed7 LP |
955 | } |
956 | ||
be847e82 | 957 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
958 | Service *s = SERVICE(u); |
959 | int r; | |
960 | ||
961 | assert(s); | |
962 | assert(s->state == SERVICE_DEAD); | |
963 | ||
930d2838 LP |
964 | if (s->deserialized_state == s->state) |
965 | return 0; | |
6c12b52e | 966 | |
930d2838 LP |
967 | if (IN_SET(s->deserialized_state, |
968 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
969 | SERVICE_RELOAD, | |
970 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
971 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
e558336f | 972 | |
930d2838 | 973 | usec_t k; |
a16e1123 | 974 | |
930d2838 | 975 | 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 | 976 | |
930d2838 LP |
977 | /* For the start/stop timeouts 0 means off */ |
978 | if (k > 0) { | |
979 | r = service_arm_timer(s, k); | |
bf108e55 LP |
980 | if (r < 0) |
981 | return r; | |
982 | } | |
930d2838 | 983 | } |
a16e1123 | 984 | |
930d2838 | 985 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
a16e1123 | 986 | |
930d2838 LP |
987 | /* The restart timeouts 0 means immediately */ |
988 | r = service_arm_timer(s, s->restart_usec); | |
989 | if (r < 0) | |
990 | return r; | |
991 | } | |
a911bb9a | 992 | |
930d2838 LP |
993 | if (s->main_pid > 0 && |
994 | pid_is_unwaited(s->main_pid) && | |
995 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
996 | IN_SET(s->deserialized_state, | |
997 | SERVICE_START, SERVICE_START_POST, | |
998 | SERVICE_RUNNING, SERVICE_RELOAD, | |
999 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1000 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
1001 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1002 | if (r < 0) | |
1003 | return r; | |
1004 | } | |
bb242b7b | 1005 | |
930d2838 LP |
1006 | if (s->control_pid > 0 && |
1007 | pid_is_unwaited(s->control_pid) && | |
1008 | IN_SET(s->deserialized_state, | |
1009 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1010 | SERVICE_RELOAD, | |
1011 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1012 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1013 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1014 | if (r < 0) | |
1015 | return r; | |
a16e1123 | 1016 | } |
92c1622e | 1017 | |
930d2838 LP |
1018 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1019 | unit_watch_all_pids(UNIT(s)); | |
1020 | ||
1021 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) | |
1022 | service_start_watchdog(s); | |
1023 | ||
1024 | service_set_state(s, s->deserialized_state); | |
a16e1123 LP |
1025 | return 0; |
1026 | } | |
1027 | ||
8dd4c05b LP |
1028 | static int service_collect_fds(Service *s, int **fds, char ***fd_names) { |
1029 | _cleanup_strv_free_ char **rfd_names = NULL; | |
a354329f | 1030 | _cleanup_free_ int *rfds = NULL; |
8dd4c05b | 1031 | int rn_fds = 0, r; |
44d8db9e LP |
1032 | |
1033 | assert(s); | |
1034 | assert(fds); | |
8dd4c05b | 1035 | assert(fd_names); |
44d8db9e | 1036 | |
8dd4c05b | 1037 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1038 | |
8dd4c05b | 1039 | /* Pass the per-connection socket */ |
57020a3a | 1040 | |
8dd4c05b LP |
1041 | rfds = new(int, 1); |
1042 | if (!rfds) | |
1043 | return -ENOMEM; | |
1044 | rfds[0] = s->socket_fd; | |
57020a3a | 1045 | |
8dd4c05b LP |
1046 | rfd_names = strv_new("connection", NULL); |
1047 | if (!rfd_names) | |
1048 | return -ENOMEM; | |
44d8db9e | 1049 | |
8dd4c05b LP |
1050 | rn_fds = 1; |
1051 | } else { | |
1052 | Iterator i; | |
1053 | Unit *u; | |
44d8db9e | 1054 | |
8dd4c05b | 1055 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1056 | |
8dd4c05b LP |
1057 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
1058 | _cleanup_free_ int *cfds = NULL; | |
1059 | Socket *sock; | |
1060 | int cn_fds; | |
44d8db9e | 1061 | |
8dd4c05b LP |
1062 | if (u->type != UNIT_SOCKET) |
1063 | continue; | |
44d8db9e | 1064 | |
8dd4c05b | 1065 | sock = SOCKET(u); |
a354329f | 1066 | |
8dd4c05b LP |
1067 | cn_fds = socket_collect_fds(sock, &cfds); |
1068 | if (cn_fds < 0) | |
1069 | return cn_fds; | |
44d8db9e | 1070 | |
8dd4c05b LP |
1071 | if (cn_fds <= 0) |
1072 | continue; | |
79c7626d | 1073 | |
8dd4c05b LP |
1074 | if (!rfds) { |
1075 | rfds = cfds; | |
1076 | rn_fds = cn_fds; | |
1077 | ||
1078 | cfds = NULL; | |
1079 | } else { | |
1080 | int *t; | |
1081 | ||
1082 | t = realloc(rfds, (rn_fds + cn_fds) * sizeof(int)); | |
1083 | if (!t) | |
1084 | return -ENOMEM; | |
1085 | ||
1086 | memcpy(t + rn_fds, cfds, cn_fds * sizeof(int)); | |
1087 | ||
1088 | rfds = t; | |
1089 | rn_fds += cn_fds; | |
1090 | } | |
1091 | ||
1092 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1093 | if (r < 0) | |
1094 | return r; | |
44d8db9e LP |
1095 | } |
1096 | } | |
1097 | ||
a354329f LP |
1098 | if (s->n_fd_store > 0) { |
1099 | ServiceFDStore *fs; | |
8dd4c05b | 1100 | char **nl; |
a354329f LP |
1101 | int *t; |
1102 | ||
1103 | t = realloc(rfds, (rn_fds + s->n_fd_store) * sizeof(int)); | |
1104 | if (!t) | |
1105 | return -ENOMEM; | |
1106 | ||
1107 | rfds = t; | |
8dd4c05b LP |
1108 | |
1109 | nl = realloc(rfd_names, (rn_fds + s->n_fd_store + 1) * sizeof(char*)); | |
1110 | if (!nl) | |
1111 | return -ENOMEM; | |
1112 | ||
1113 | rfd_names = nl; | |
1114 | ||
1115 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
1116 | rfds[rn_fds] = fs->fd; | |
1117 | rfd_names[rn_fds] = strdup(strempty(fs->fdname)); | |
1118 | if (!rfd_names[rn_fds]) | |
1119 | return -ENOMEM; | |
1120 | ||
1121 | rn_fds++; | |
1122 | } | |
1123 | ||
1124 | rfd_names[rn_fds] = NULL; | |
a354329f LP |
1125 | } |
1126 | ||
44d8db9e | 1127 | *fds = rfds; |
8dd4c05b | 1128 | *fd_names = rfd_names; |
3e33402a | 1129 | |
a354329f | 1130 | rfds = NULL; |
8dd4c05b | 1131 | rfd_names = NULL; |
79c7626d LP |
1132 | |
1133 | return rn_fds; | |
44d8db9e LP |
1134 | } |
1135 | ||
81a2b7ce LP |
1136 | static int service_spawn( |
1137 | Service *s, | |
1138 | ExecCommand *c, | |
21b2ce39 | 1139 | usec_t timeout, |
81a2b7ce LP |
1140 | bool pass_fds, |
1141 | bool apply_permissions, | |
1142 | bool apply_chroot, | |
1e3ad081 | 1143 | bool apply_tty_stdin, |
ecedd90f | 1144 | bool is_control, |
81a2b7ce LP |
1145 | pid_t *_pid) { |
1146 | ||
8dd4c05b | 1147 | _cleanup_strv_free_ char **argv = NULL, **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
e44da745 | 1148 | _cleanup_free_ char *bus_endpoint_path = NULL; |
8dd4c05b LP |
1149 | _cleanup_free_ int *fds = NULL; |
1150 | unsigned n_fds = 0, n_env = 0; | |
4ad49000 | 1151 | const char *path; |
8dd4c05b LP |
1152 | pid_t pid; |
1153 | ||
9fa95f85 | 1154 | ExecParameters exec_params = { |
a34ceba6 LP |
1155 | .apply_permissions = apply_permissions, |
1156 | .apply_chroot = apply_chroot, | |
1157 | .apply_tty_stdin = apply_tty_stdin, | |
1158 | .bus_endpoint_fd = -1, | |
1159 | .stdin_fd = -1, | |
1160 | .stdout_fd = -1, | |
1161 | .stderr_fd = -1, | |
9fa95f85 | 1162 | }; |
034c6ed7 | 1163 | |
8dd4c05b LP |
1164 | int r; |
1165 | ||
034c6ed7 LP |
1166 | assert(s); |
1167 | assert(c); | |
1168 | assert(_pid); | |
1169 | ||
5ad096b3 LP |
1170 | (void) unit_realize_cgroup(UNIT(s)); |
1171 | if (s->reset_cpu_usage) { | |
1172 | (void) unit_reset_cpu_usage(UNIT(s)); | |
1173 | s->reset_cpu_usage = false; | |
1174 | } | |
4ad49000 | 1175 | |
613b411c LP |
1176 | r = unit_setup_exec_runtime(UNIT(s)); |
1177 | if (r < 0) | |
1178 | goto fail; | |
1179 | ||
6cf6bbc2 LP |
1180 | if (pass_fds || |
1181 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1182 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1183 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1184 | ||
8dd4c05b LP |
1185 | r = service_collect_fds(s, &fds, &fd_names); |
1186 | if (r < 0) | |
1187 | goto fail; | |
6cf6bbc2 | 1188 | |
8dd4c05b | 1189 | n_fds = r; |
4f2d528d | 1190 | } |
44d8db9e | 1191 | |
21b2ce39 LP |
1192 | if (timeout > 0) { |
1193 | r = service_arm_timer(s, timeout); | |
92c1622e LP |
1194 | if (r < 0) |
1195 | goto fail; | |
1196 | } else | |
1197 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 1198 | |
19f6d710 LP |
1199 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1200 | if (r < 0) | |
9e2f7c11 | 1201 | goto fail; |
9e2f7c11 | 1202 | |
3b1c5241 | 1203 | our_env = new0(char*, 6); |
97ae63e2 | 1204 | if (!our_env) { |
2105e76a LP |
1205 | r = -ENOMEM; |
1206 | goto fail; | |
1207 | } | |
c952c6ec | 1208 | |
a158dbf1 | 1209 | if (is_control ? s->notify_access == NOTIFY_ALL : s->notify_access != NOTIFY_NONE) |
1124fe6f | 1210 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
1211 | r = -ENOMEM; |
1212 | goto fail; | |
1213 | } | |
1214 | ||
2105e76a | 1215 | if (s->main_pid > 0) |
ccd06097 | 1216 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) { |
c952c6ec LP |
1217 | r = -ENOMEM; |
1218 | goto fail; | |
1219 | } | |
2105e76a | 1220 | |
b2c23da8 | 1221 | if (UNIT(s)->manager->running_as != MANAGER_SYSTEM) |
ccd06097 | 1222 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) { |
97ae63e2 LP |
1223 | r = -ENOMEM; |
1224 | goto fail; | |
1225 | } | |
1226 | ||
8dd4c05b | 1227 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1228 | union sockaddr_union sa; |
1229 | socklen_t salen = sizeof(sa); | |
1230 | ||
1231 | r = getpeername(s->socket_fd, &sa.sa, &salen); | |
1232 | if (r < 0) { | |
1233 | r = -errno; | |
1234 | goto fail; | |
1235 | } | |
1236 | ||
1237 | if (IN_SET(sa.sa.sa_family, AF_INET, AF_INET6)) { | |
1238 | _cleanup_free_ char *addr = NULL; | |
1239 | char *t; | |
1240 | int port; | |
1241 | ||
1242 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1243 | if (r < 0) | |
1244 | goto fail; | |
1245 | ||
1246 | t = strappend("REMOTE_ADDR=", addr); | |
1247 | if (!t) { | |
1248 | r = -ENOMEM; | |
1249 | goto fail; | |
1250 | } | |
1251 | our_env[n_env++] = t; | |
1252 | ||
1253 | port = sockaddr_port(&sa.sa); | |
1254 | if (port < 0) { | |
1255 | r = port; | |
1256 | goto fail; | |
1257 | } | |
1258 | ||
1259 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) { | |
1260 | r = -ENOMEM; | |
1261 | goto fail; | |
1262 | } | |
1263 | our_env[n_env++] = t; | |
1264 | } | |
1265 | } | |
1266 | ||
97ae63e2 LP |
1267 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); |
1268 | if (!final_env) { | |
2105e76a LP |
1269 | r = -ENOMEM; |
1270 | goto fail; | |
1271 | } | |
c952c6ec | 1272 | |
4ad49000 | 1273 | if (is_control && UNIT(s)->cgroup_path) { |
63c372cb | 1274 | path = strjoina(UNIT(s)->cgroup_path, "/control"); |
ac5b0c13 | 1275 | (void) cg_create(SYSTEMD_CGROUP_CONTROLLER, path); |
4ad49000 LP |
1276 | } else |
1277 | path = UNIT(s)->cgroup_path; | |
1278 | ||
e44da745 | 1279 | if (s->exec_context.bus_endpoint) { |
b2c23da8 | 1280 | r = bus_kernel_create_endpoint(UNIT(s)->manager->running_as == MANAGER_SYSTEM ? "system" : "user", |
e44da745 DM |
1281 | UNIT(s)->id, &bus_endpoint_path); |
1282 | if (r < 0) | |
1283 | goto fail; | |
1284 | ||
1285 | /* Pass the fd to the exec_params so that the child process can upload the policy. | |
1286 | * Keep a reference to the fd in the service, so the endpoint is kept alive as long | |
1287 | * as the service is running. */ | |
1288 | exec_params.bus_endpoint_fd = s->bus_endpoint_fd = r; | |
1289 | } | |
e44da745 | 1290 | |
9fa95f85 DM |
1291 | exec_params.argv = argv; |
1292 | exec_params.fds = fds; | |
8dd4c05b | 1293 | exec_params.fd_names = fd_names; |
9fa95f85 DM |
1294 | exec_params.n_fds = n_fds; |
1295 | exec_params.environment = final_env; | |
1296 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
1297 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
1298 | exec_params.cgroup_path = path; | |
a931ad47 | 1299 | exec_params.cgroup_delegate = s->cgroup_context.delegate; |
9fa95f85 | 1300 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); |
9fa95f85 | 1301 | exec_params.watchdog_usec = s->watchdog_usec; |
e44da745 | 1302 | exec_params.bus_endpoint_path = bus_endpoint_path; |
a34ceba6 | 1303 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1304 | if (s->type == SERVICE_IDLE) |
1305 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1306 | exec_params.stdin_fd = s->stdin_fd; |
1307 | exec_params.stdout_fd = s->stdout_fd; | |
1308 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1309 | |
f2341e0a LP |
1310 | r = exec_spawn(UNIT(s), |
1311 | c, | |
9e2f7c11 | 1312 | &s->exec_context, |
9fa95f85 | 1313 | &exec_params, |
613b411c | 1314 | s->exec_runtime, |
9e2f7c11 | 1315 | &pid); |
9e2f7c11 | 1316 | if (r < 0) |
034c6ed7 LP |
1317 | goto fail; |
1318 | ||
117dcc57 ZJS |
1319 | r = unit_watch_pid(UNIT(s), pid); |
1320 | if (r < 0) | |
034c6ed7 LP |
1321 | /* FIXME: we need to do something here */ |
1322 | goto fail; | |
1323 | ||
1324 | *_pid = pid; | |
1325 | ||
5cb5a6ff | 1326 | return 0; |
034c6ed7 LP |
1327 | |
1328 | fail: | |
1329 | if (timeout) | |
718db961 | 1330 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
1331 | |
1332 | return r; | |
1333 | } | |
1334 | ||
80876c20 LP |
1335 | static int main_pid_good(Service *s) { |
1336 | assert(s); | |
1337 | ||
1338 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1339 | * don't know */ | |
1340 | ||
fc08079e | 1341 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1342 | * still valid */ |
6dfa5494 LP |
1343 | if (s->main_pid_known) { |
1344 | ||
1345 | /* If it's an alien child let's check if it is still | |
1346 | * alive ... */ | |
62220cf7 | 1347 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1348 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1349 | |
1350 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1351 | * which we really should wait for to collect exit | |
1352 | * status and code */ | |
80876c20 | 1353 | return s->main_pid > 0; |
6dfa5494 | 1354 | } |
80876c20 LP |
1355 | |
1356 | /* We don't know the pid */ | |
1357 | return -EAGAIN; | |
1358 | } | |
1359 | ||
44a6b1b6 | 1360 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1361 | assert(s); |
1362 | ||
1363 | return s->control_pid > 0; | |
1364 | } | |
1365 | ||
1366 | static int cgroup_good(Service *s) { | |
1367 | int r; | |
1368 | ||
1369 | assert(s); | |
1370 | ||
4ad49000 LP |
1371 | if (!UNIT(s)->cgroup_path) |
1372 | return 0; | |
1373 | ||
6f883237 | 1374 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1375 | if (r < 0) |
80876c20 LP |
1376 | return r; |
1377 | ||
1378 | return !r; | |
1379 | } | |
1380 | ||
a509f0e6 LP |
1381 | static bool service_shall_restart(Service *s) { |
1382 | assert(s); | |
1383 | ||
1384 | /* Don't restart after manual stops */ | |
1385 | if (s->forbid_restart) | |
1386 | return false; | |
1387 | ||
1388 | /* Never restart if this is configured as special exception */ | |
1389 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1390 | return false; | |
1391 | ||
1392 | /* Restart if the exit code/status are configured as restart triggers */ | |
1393 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1394 | return true; | |
1395 | ||
1396 | switch (s->restart) { | |
1397 | ||
1398 | case SERVICE_RESTART_NO: | |
1399 | return false; | |
1400 | ||
1401 | case SERVICE_RESTART_ALWAYS: | |
1402 | return true; | |
1403 | ||
1404 | case SERVICE_RESTART_ON_SUCCESS: | |
1405 | return s->result == SERVICE_SUCCESS; | |
1406 | ||
1407 | case SERVICE_RESTART_ON_FAILURE: | |
1408 | return s->result != SERVICE_SUCCESS; | |
1409 | ||
1410 | case SERVICE_RESTART_ON_ABNORMAL: | |
1411 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1412 | ||
1413 | case SERVICE_RESTART_ON_WATCHDOG: | |
1414 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1415 | ||
1416 | case SERVICE_RESTART_ON_ABORT: | |
1417 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1418 | ||
1419 | default: | |
1420 | assert_not_reached("unknown restart setting"); | |
1421 | } | |
1422 | } | |
1423 | ||
f42806df | 1424 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1425 | int r; |
1426 | assert(s); | |
1427 | ||
f42806df LP |
1428 | if (f != SERVICE_SUCCESS) |
1429 | s->result = f; | |
034c6ed7 | 1430 | |
0c7f15b3 MS |
1431 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1432 | ||
2928b0a8 | 1433 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1434 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
2928b0a8 LP |
1435 | failure_action(UNIT(s)->manager, s->failure_action, s->reboot_arg); |
1436 | } | |
93ae25e6 | 1437 | |
a509f0e6 | 1438 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1439 | |
718db961 | 1440 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1441 | if (r < 0) |
034c6ed7 LP |
1442 | goto fail; |
1443 | ||
1444 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1445 | } |
034c6ed7 | 1446 | |
f2341e0a | 1447 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1448 | s->forbid_restart = false; |
1449 | ||
e66cf1a3 | 1450 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1451 | exec_runtime_destroy(s->exec_runtime); |
1452 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1453 | |
e66cf1a3 LP |
1454 | /* Also, remove the runtime directory in */ |
1455 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); | |
1456 | ||
9285c9ff LN |
1457 | /* Try to delete the pid file. At this point it will be |
1458 | * out-of-date, and some software might be confused by it, so | |
1459 | * let's remove it. */ | |
1460 | if (s->pid_file) | |
1461 | unlink_noerrno(s->pid_file); | |
1462 | ||
034c6ed7 LP |
1463 | return; |
1464 | ||
1465 | fail: | |
f2341e0a | 1466 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1467 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1468 | } |
1469 | ||
f42806df | 1470 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1471 | int r; |
1472 | assert(s); | |
1473 | ||
f42806df LP |
1474 | if (f != SERVICE_SUCCESS) |
1475 | s->result = f; | |
034c6ed7 | 1476 | |
5e94833f | 1477 | service_unwatch_control_pid(s); |
a911bb9a | 1478 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1479 | |
117dcc57 ZJS |
1480 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1481 | if (s->control_command) { | |
867b3b7d LP |
1482 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1483 | ||
ecedd90f LP |
1484 | r = service_spawn(s, |
1485 | s->control_command, | |
21b2ce39 | 1486 | s->timeout_stop_usec, |
ecedd90f LP |
1487 | false, |
1488 | !s->permissions_start_only, | |
1489 | !s->root_directory_start_only, | |
1490 | true, | |
ecedd90f LP |
1491 | true, |
1492 | &s->control_pid); | |
1493 | if (r < 0) | |
034c6ed7 LP |
1494 | goto fail; |
1495 | ||
80876c20 LP |
1496 | service_set_state(s, SERVICE_STOP_POST); |
1497 | } else | |
ac84d1fb | 1498 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1499 | |
1500 | return; | |
1501 | ||
1502 | fail: | |
f2341e0a | 1503 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1504 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1505 | } |
1506 | ||
4940c0b0 LP |
1507 | static int state_to_kill_operation(ServiceState state) { |
1508 | switch (state) { | |
1509 | ||
1510 | case SERVICE_STOP_SIGABRT: | |
1511 | return KILL_ABORT; | |
1512 | ||
1513 | case SERVICE_STOP_SIGTERM: | |
1514 | case SERVICE_FINAL_SIGTERM: | |
1515 | return KILL_TERMINATE; | |
1516 | ||
1517 | case SERVICE_STOP_SIGKILL: | |
1518 | case SERVICE_FINAL_SIGKILL: | |
1519 | return KILL_KILL; | |
1520 | ||
1521 | default: | |
1522 | return _KILL_OPERATION_INVALID; | |
1523 | } | |
1524 | } | |
1525 | ||
f42806df | 1526 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1527 | int r; |
034c6ed7 LP |
1528 | |
1529 | assert(s); | |
1530 | ||
f42806df LP |
1531 | if (f != SERVICE_SUCCESS) |
1532 | s->result = f; | |
034c6ed7 | 1533 | |
a911bb9a LP |
1534 | unit_watch_all_pids(UNIT(s)); |
1535 | ||
cd2086fe LP |
1536 | r = unit_kill_context( |
1537 | UNIT(s), | |
1538 | &s->kill_context, | |
4940c0b0 | 1539 | state_to_kill_operation(state), |
cd2086fe LP |
1540 | s->main_pid, |
1541 | s->control_pid, | |
1542 | s->main_pid_alien); | |
ac84d1fb | 1543 | |
cd2086fe LP |
1544 | if (r < 0) |
1545 | goto fail; | |
034c6ed7 | 1546 | |
cd2086fe | 1547 | if (r > 0) { |
d568a335 | 1548 | if (s->timeout_stop_usec > 0) { |
718db961 | 1549 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 1550 | if (r < 0) |
e558336f | 1551 | goto fail; |
d568a335 | 1552 | } |
d6ea93e3 | 1553 | |
80876c20 | 1554 | service_set_state(s, state); |
1db0db4b | 1555 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1556 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1557 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1558 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1559 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1560 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1561 | else |
f42806df | 1562 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1563 | |
1564 | return; | |
1565 | ||
1566 | fail: | |
f2341e0a | 1567 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1568 | |
a00973af | 1569 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1570 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1571 | else |
f42806df | 1572 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1573 | } |
1574 | ||
308d72dc LP |
1575 | static void service_enter_stop_by_notify(Service *s) { |
1576 | assert(s); | |
1577 | ||
1578 | unit_watch_all_pids(UNIT(s)); | |
1579 | ||
1580 | if (s->timeout_stop_usec > 0) | |
1581 | service_arm_timer(s, s->timeout_stop_usec); | |
1582 | ||
6041a7ee MS |
1583 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1584 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1585 | } |
1586 | ||
f42806df | 1587 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1588 | int r; |
5925dd3c | 1589 | |
034c6ed7 LP |
1590 | assert(s); |
1591 | ||
f42806df LP |
1592 | if (f != SERVICE_SUCCESS) |
1593 | s->result = f; | |
034c6ed7 | 1594 | |
5e94833f | 1595 | service_unwatch_control_pid(s); |
a911bb9a | 1596 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1597 | |
117dcc57 ZJS |
1598 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1599 | if (s->control_command) { | |
867b3b7d LP |
1600 | s->control_command_id = SERVICE_EXEC_STOP; |
1601 | ||
ecedd90f LP |
1602 | r = service_spawn(s, |
1603 | s->control_command, | |
21b2ce39 | 1604 | s->timeout_stop_usec, |
ecedd90f LP |
1605 | false, |
1606 | !s->permissions_start_only, | |
1607 | !s->root_directory_start_only, | |
1608 | false, | |
ecedd90f LP |
1609 | true, |
1610 | &s->control_pid); | |
1611 | if (r < 0) | |
034c6ed7 LP |
1612 | goto fail; |
1613 | ||
80876c20 LP |
1614 | service_set_state(s, SERVICE_STOP); |
1615 | } else | |
f42806df | 1616 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1617 | |
1618 | return; | |
1619 | ||
1620 | fail: | |
f2341e0a | 1621 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1622 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1623 | } |
1624 | ||
957c3cf9 LP |
1625 | static bool service_good(Service *s) { |
1626 | int main_pid_ok; | |
1627 | assert(s); | |
1628 | ||
1629 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1630 | return false; | |
1631 | ||
1632 | main_pid_ok = main_pid_good(s); | |
1633 | if (main_pid_ok > 0) /* It's alive */ | |
1634 | return true; | |
1635 | if (main_pid_ok == 0) /* It's dead */ | |
1636 | return false; | |
1637 | ||
1638 | /* OK, we don't know anything about the main PID, maybe | |
1639 | * because there is none. Let's check the control group | |
1640 | * instead. */ | |
1641 | ||
1642 | return cgroup_good(s) != 0; | |
1643 | } | |
1644 | ||
f42806df | 1645 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1646 | assert(s); |
1647 | ||
f42806df LP |
1648 | if (f != SERVICE_SUCCESS) |
1649 | s->result = f; | |
80876c20 | 1650 | |
957c3cf9 | 1651 | if (service_good(s)) { |
308d72dc LP |
1652 | |
1653 | /* If there are any queued up sd_notify() | |
1654 | * notifications, process them now */ | |
1655 | if (s->notify_state == NOTIFY_RELOADING) | |
1656 | service_enter_reload_by_notify(s); | |
1657 | else if (s->notify_state == NOTIFY_STOPPING) | |
1658 | service_enter_stop_by_notify(s); | |
1659 | else | |
1660 | service_set_state(s, SERVICE_RUNNING); | |
1661 | ||
1662 | } else if (s->remain_after_exit) | |
80876c20 LP |
1663 | service_set_state(s, SERVICE_EXITED); |
1664 | else | |
f42806df | 1665 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1666 | } |
1667 | ||
034c6ed7 LP |
1668 | static void service_enter_start_post(Service *s) { |
1669 | int r; | |
1670 | assert(s); | |
1671 | ||
5e94833f | 1672 | service_unwatch_control_pid(s); |
842129f5 | 1673 | service_reset_watchdog(s); |
bb242b7b | 1674 | |
117dcc57 ZJS |
1675 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1676 | if (s->control_command) { | |
867b3b7d LP |
1677 | s->control_command_id = SERVICE_EXEC_START_POST; |
1678 | ||
ecedd90f LP |
1679 | r = service_spawn(s, |
1680 | s->control_command, | |
21b2ce39 | 1681 | s->timeout_start_usec, |
ecedd90f LP |
1682 | false, |
1683 | !s->permissions_start_only, | |
1684 | !s->root_directory_start_only, | |
1685 | false, | |
ecedd90f LP |
1686 | true, |
1687 | &s->control_pid); | |
1688 | if (r < 0) | |
034c6ed7 LP |
1689 | goto fail; |
1690 | ||
80876c20 LP |
1691 | service_set_state(s, SERVICE_START_POST); |
1692 | } else | |
f42806df | 1693 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1694 | |
1695 | return; | |
1696 | ||
1697 | fail: | |
f2341e0a | 1698 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1699 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1700 | } |
1701 | ||
4ad49000 LP |
1702 | static void service_kill_control_processes(Service *s) { |
1703 | char *p; | |
1704 | ||
1705 | if (!UNIT(s)->cgroup_path) | |
1706 | return; | |
1707 | ||
63c372cb | 1708 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
4ad49000 LP |
1709 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
1710 | } | |
1711 | ||
034c6ed7 | 1712 | static void service_enter_start(Service *s) { |
4ad49000 | 1713 | ExecCommand *c; |
034c6ed7 LP |
1714 | pid_t pid; |
1715 | int r; | |
1716 | ||
1717 | assert(s); | |
1718 | ||
41efeaec LP |
1719 | service_unwatch_control_pid(s); |
1720 | service_unwatch_main_pid(s); | |
80876c20 | 1721 | |
8f53a7b8 LP |
1722 | /* We want to ensure that nobody leaks processes from |
1723 | * START_PRE here, so let's go on a killing spree, People | |
1724 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1725 | service_kill_control_processes(s); |
8f53a7b8 | 1726 | |
867b3b7d LP |
1727 | if (s->type == SERVICE_FORKING) { |
1728 | s->control_command_id = SERVICE_EXEC_START; | |
1729 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1730 | ||
1731 | s->main_command = NULL; | |
1732 | } else { | |
1733 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1734 | s->control_command = NULL; | |
1735 | ||
1736 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1737 | } | |
34e9ba66 | 1738 | |
96fb8242 LP |
1739 | if (!c) { |
1740 | assert(s->type == SERVICE_ONESHOT); | |
1741 | service_enter_start_post(s); | |
1742 | return; | |
1743 | } | |
1744 | ||
ecedd90f LP |
1745 | r = service_spawn(s, |
1746 | c, | |
21b2ce39 | 1747 | IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_ONESHOT) ? s->timeout_start_usec : 0, |
ecedd90f LP |
1748 | true, |
1749 | true, | |
1750 | true, | |
1751 | true, | |
ecedd90f LP |
1752 | false, |
1753 | &pid); | |
1754 | if (r < 0) | |
034c6ed7 LP |
1755 | goto fail; |
1756 | ||
f2b68789 | 1757 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
1758 | /* For simple services we immediately start |
1759 | * the START_POST binaries. */ | |
1760 | ||
5925dd3c | 1761 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1762 | service_enter_start_post(s); |
1763 | ||
1764 | } else if (s->type == SERVICE_FORKING) { | |
1765 | ||
1766 | /* For forking services we wait until the start | |
1767 | * process exited. */ | |
1768 | ||
e55224ca | 1769 | s->control_pid = pid; |
80876c20 LP |
1770 | service_set_state(s, SERVICE_START); |
1771 | ||
34e9ba66 | 1772 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
1773 | s->type == SERVICE_DBUS || |
1774 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 1775 | |
34e9ba66 | 1776 | /* For oneshot services we wait until the start |
7d55e835 LP |
1777 | * process exited, too, but it is our main process. */ |
1778 | ||
05e343b7 | 1779 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1780 | * but wait for the bus name to appear on the |
1781 | * bus. Notify services are similar. */ | |
05e343b7 | 1782 | |
5925dd3c | 1783 | service_set_main_pid(s, pid); |
80876c20 | 1784 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1785 | } else |
1786 | assert_not_reached("Unknown service type"); | |
1787 | ||
1788 | return; | |
1789 | ||
1790 | fail: | |
f2341e0a | 1791 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
f42806df | 1792 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1793 | } |
1794 | ||
1795 | static void service_enter_start_pre(Service *s) { | |
1796 | int r; | |
1797 | ||
1798 | assert(s); | |
1799 | ||
5e94833f LP |
1800 | service_unwatch_control_pid(s); |
1801 | ||
117dcc57 ZJS |
1802 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1803 | if (s->control_command) { | |
8f53a7b8 LP |
1804 | /* Before we start anything, let's clear up what might |
1805 | * be left from previous runs. */ | |
4ad49000 | 1806 | service_kill_control_processes(s); |
8f53a7b8 | 1807 | |
867b3b7d LP |
1808 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1809 | ||
ecedd90f LP |
1810 | r = service_spawn(s, |
1811 | s->control_command, | |
21b2ce39 | 1812 | s->timeout_start_usec, |
ecedd90f LP |
1813 | false, |
1814 | !s->permissions_start_only, | |
1815 | !s->root_directory_start_only, | |
1816 | true, | |
ecedd90f LP |
1817 | true, |
1818 | &s->control_pid); | |
1819 | if (r < 0) | |
034c6ed7 LP |
1820 | goto fail; |
1821 | ||
80876c20 LP |
1822 | service_set_state(s, SERVICE_START_PRE); |
1823 | } else | |
034c6ed7 LP |
1824 | service_enter_start(s); |
1825 | ||
1826 | return; | |
1827 | ||
1828 | fail: | |
f2341e0a | 1829 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1830 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1831 | } |
1832 | ||
1833 | static void service_enter_restart(Service *s) { | |
4afd3348 | 1834 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1835 | int r; |
398ef8ba | 1836 | |
034c6ed7 LP |
1837 | assert(s); |
1838 | ||
a8bb2e65 LP |
1839 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1840 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1841 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1842 | |
718db961 | 1843 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 1844 | if (r < 0) |
2edfa366 | 1845 | goto fail; |
feae8adb DW |
1846 | |
1847 | return; | |
2edfa366 LP |
1848 | } |
1849 | ||
48bb5876 DW |
1850 | /* Any units that are bound to this service must also be |
1851 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1852 | * JOB_START) here so that those dependency jobs will be added | |
1853 | * as well. */ | |
4bd29fe5 | 1854 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, &error, NULL); |
48bb5876 | 1855 | if (r < 0) |
034c6ed7 LP |
1856 | goto fail; |
1857 | ||
a8bb2e65 LP |
1858 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1859 | * it will be canceled as part of the service_stop() call that | |
1860 | * is executed as part of JOB_RESTART. */ | |
1861 | ||
f2341e0a | 1862 | log_unit_debug(UNIT(s), "Scheduled restart job."); |
034c6ed7 LP |
1863 | return; |
1864 | ||
1865 | fail: | |
f2341e0a | 1866 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1867 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1868 | } |
1869 | ||
308d72dc LP |
1870 | static void service_enter_reload_by_notify(Service *s) { |
1871 | assert(s); | |
1872 | ||
1873 | if (s->timeout_start_usec > 0) | |
1874 | service_arm_timer(s, s->timeout_start_usec); | |
1875 | ||
1876 | service_set_state(s, SERVICE_RELOAD); | |
1877 | } | |
1878 | ||
034c6ed7 LP |
1879 | static void service_enter_reload(Service *s) { |
1880 | int r; | |
1881 | ||
1882 | assert(s); | |
1883 | ||
5e94833f | 1884 | service_unwatch_control_pid(s); |
95c906ae | 1885 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 1886 | |
117dcc57 ZJS |
1887 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1888 | if (s->control_command) { | |
867b3b7d LP |
1889 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1890 | ||
ecedd90f LP |
1891 | r = service_spawn(s, |
1892 | s->control_command, | |
21b2ce39 | 1893 | s->timeout_start_usec, |
ecedd90f LP |
1894 | false, |
1895 | !s->permissions_start_only, | |
1896 | !s->root_directory_start_only, | |
1897 | false, | |
ecedd90f LP |
1898 | true, |
1899 | &s->control_pid); | |
1900 | if (r < 0) | |
034c6ed7 LP |
1901 | goto fail; |
1902 | ||
80876c20 LP |
1903 | service_set_state(s, SERVICE_RELOAD); |
1904 | } else | |
f42806df | 1905 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1906 | |
1907 | return; | |
1908 | ||
1909 | fail: | |
f2341e0a | 1910 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
1911 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1912 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
1913 | } |
1914 | ||
f42806df | 1915 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
1916 | int r; |
1917 | ||
1918 | assert(s); | |
1919 | assert(s->control_command); | |
1920 | assert(s->control_command->command_next); | |
1921 | ||
34e9ba66 | 1922 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 1923 | |
34e9ba66 | 1924 | s->control_command = s->control_command->command_next; |
5e94833f LP |
1925 | service_unwatch_control_pid(s); |
1926 | ||
ecedd90f LP |
1927 | r = service_spawn(s, |
1928 | s->control_command, | |
21b2ce39 | 1929 | 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 |
1930 | false, |
1931 | !s->permissions_start_only, | |
1932 | !s->root_directory_start_only, | |
1933 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
1934 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
ecedd90f LP |
1935 | true, |
1936 | &s->control_pid); | |
1937 | if (r < 0) | |
034c6ed7 LP |
1938 | goto fail; |
1939 | ||
1940 | return; | |
1941 | ||
1942 | fail: | |
f2341e0a | 1943 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 1944 | |
80876c20 | 1945 | if (s->state == SERVICE_START_PRE) |
f42806df | 1946 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 1947 | else if (s->state == SERVICE_STOP) |
f42806df | 1948 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1949 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 1950 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 1951 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
1952 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1953 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 1954 | } else |
f42806df | 1955 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
1956 | } |
1957 | ||
f42806df | 1958 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
1959 | pid_t pid; |
1960 | int r; | |
1961 | ||
1962 | assert(s); | |
867b3b7d LP |
1963 | assert(s->main_command); |
1964 | assert(s->main_command->command_next); | |
1965 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 1966 | |
867b3b7d | 1967 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
1968 | service_unwatch_main_pid(s); |
1969 | ||
ecedd90f LP |
1970 | r = service_spawn(s, |
1971 | s->main_command, | |
21b2ce39 | 1972 | s->timeout_start_usec, |
ecedd90f LP |
1973 | true, |
1974 | true, | |
1975 | true, | |
1976 | true, | |
ecedd90f LP |
1977 | false, |
1978 | &pid); | |
1979 | if (r < 0) | |
34e9ba66 LP |
1980 | goto fail; |
1981 | ||
1982 | service_set_main_pid(s, pid); | |
1983 | ||
1984 | return; | |
1985 | ||
1986 | fail: | |
f2341e0a | 1987 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 1988 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
1989 | } |
1990 | ||
93ae25e6 MO |
1991 | static int service_start_limit_test(Service *s) { |
1992 | assert(s); | |
1993 | ||
1994 | if (ratelimit_test(&s->start_limit)) | |
1995 | return 0; | |
1996 | ||
f2341e0a | 1997 | log_unit_warning(UNIT(s), "Start request repeated too quickly."); |
2928b0a8 LP |
1998 | |
1999 | return failure_action(UNIT(s)->manager, s->start_limit_action, s->reboot_arg); | |
93ae25e6 MO |
2000 | } |
2001 | ||
87f0e418 LP |
2002 | static int service_start(Unit *u) { |
2003 | Service *s = SERVICE(u); | |
4b939747 | 2004 | int r; |
5cb5a6ff LP |
2005 | |
2006 | assert(s); | |
2007 | ||
034c6ed7 LP |
2008 | /* We cannot fulfill this request right now, try again later |
2009 | * please! */ | |
a00973af LP |
2010 | if (IN_SET(s->state, |
2011 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2012 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
2013 | return -EAGAIN; |
2014 | ||
034c6ed7 | 2015 | /* Already on it! */ |
a00973af | 2016 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2017 | return 0; |
2018 | ||
2e9d6c12 | 2019 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2020 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2021 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2022 | * service should be manually restarted, not started. We |
2023 | * simply return EAGAIN here, so that any start jobs stay | |
2024 | * queued, and assume that the auto restart timer will | |
2025 | * eventually trigger the restart. */ | |
2026 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2027 | return -EAGAIN; |
2e9d6c12 | 2028 | |
a00973af | 2029 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2030 | |
1e2e8133 | 2031 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 2032 | r = service_start_limit_test(s); |
c2f34808 | 2033 | if (r < 0) { |
8d1b002a | 2034 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 2035 | return r; |
c2f34808 | 2036 | } |
1e2e8133 | 2037 | |
f42806df LP |
2038 | s->result = SERVICE_SUCCESS; |
2039 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2040 | s->main_pid_known = false; |
6dfa5494 | 2041 | s->main_pid_alien = false; |
47342320 | 2042 | s->forbid_restart = false; |
5ad096b3 | 2043 | s->reset_cpu_usage = true; |
034c6ed7 | 2044 | |
a1e58e8e | 2045 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2046 | s->status_errno = 0; |
2047 | ||
308d72dc LP |
2048 | s->notify_state = NOTIFY_UNKNOWN; |
2049 | ||
034c6ed7 | 2050 | service_enter_start_pre(s); |
82a2b6bb | 2051 | return 1; |
5cb5a6ff LP |
2052 | } |
2053 | ||
87f0e418 LP |
2054 | static int service_stop(Unit *u) { |
2055 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2056 | |
2057 | assert(s); | |
2058 | ||
a509f0e6 | 2059 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2060 | s->forbid_restart = true; |
034c6ed7 | 2061 | |
e537352b | 2062 | /* Already on it */ |
a00973af LP |
2063 | if (IN_SET(s->state, |
2064 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2065 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2066 | return 0; |
2067 | ||
f0c7b229 | 2068 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2069 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2070 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2071 | return 0; |
2072 | } | |
2073 | ||
3f6c78dc LP |
2074 | /* If there's already something running we go directly into |
2075 | * kill mode. */ | |
a00973af | 2076 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2077 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2078 | return 0; |
2079 | } | |
5cb5a6ff | 2080 | |
a00973af | 2081 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2082 | |
f42806df | 2083 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2084 | return 1; |
5cb5a6ff LP |
2085 | } |
2086 | ||
87f0e418 LP |
2087 | static int service_reload(Unit *u) { |
2088 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2089 | |
2090 | assert(s); | |
2091 | ||
80876c20 | 2092 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2093 | |
2094 | service_enter_reload(s); | |
2d018ae2 | 2095 | return 1; |
5cb5a6ff LP |
2096 | } |
2097 | ||
44a6b1b6 | 2098 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2099 | Service *s = SERVICE(u); |
034c6ed7 LP |
2100 | |
2101 | assert(s); | |
2102 | ||
2103 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2104 | } | |
2105 | ||
a16e1123 LP |
2106 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2107 | Service *s = SERVICE(u); | |
2339fc93 | 2108 | ServiceFDStore *fs; |
a34ceba6 | 2109 | int r; |
a16e1123 LP |
2110 | |
2111 | assert(u); | |
2112 | assert(f); | |
2113 | assert(fds); | |
2114 | ||
2115 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2116 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2117 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2118 | |
2119 | if (s->control_pid > 0) | |
f06db334 | 2120 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2121 | |
5925dd3c | 2122 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2123 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2124 | |
2125 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2126 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
d8ccf5fd | 2127 | unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner); |
a16e1123 | 2128 | |
a34ceba6 LP |
2129 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2130 | if (r < 0) | |
2131 | return r; | |
3a2776bc | 2132 | |
cfc4eb4c LP |
2133 | /* FIXME: There's a minor uncleanliness here: if there are |
2134 | * multiple commands attached here, we will start from the | |
2135 | * first one again */ | |
a16e1123 | 2136 | if (s->control_command_id >= 0) |
f06db334 | 2137 | unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); |
a16e1123 | 2138 | |
a34ceba6 LP |
2139 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2140 | if (r < 0) | |
2141 | return r; | |
2142 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2143 | if (r < 0) | |
2144 | return r; | |
2145 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2146 | if (r < 0) | |
2147 | return r; | |
e44da745 | 2148 | |
a34ceba6 LP |
2149 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
2150 | if (r < 0) | |
2151 | return r; | |
2152 | r = unit_serialize_item_fd(u, f, fds, "endpoint-fd", s->bus_endpoint_fd); | |
2153 | if (r < 0) | |
2154 | return r; | |
e44da745 | 2155 | |
2339fc93 | 2156 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2157 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2158 | int copy; |
2159 | ||
2160 | copy = fdset_put_dup(fds, fs->fd); | |
2161 | if (copy < 0) | |
2162 | return copy; | |
2163 | ||
8dd4c05b LP |
2164 | c = cescape(fs->fdname); |
2165 | ||
2166 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2167 | } |
2168 | ||
ecdbca40 | 2169 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2170 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2171 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2172 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2173 | |
799fd0fd | 2174 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2175 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2176 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2177 | } |
2178 | } | |
f06db334 | 2179 | |
a6927d7f | 2180 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
842129f5 | 2181 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2182 | |
a34ceba6 | 2183 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2184 | |
a16e1123 LP |
2185 | return 0; |
2186 | } | |
2187 | ||
2188 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2189 | Service *s = SERVICE(u); | |
2339fc93 | 2190 | int r; |
a16e1123 LP |
2191 | |
2192 | assert(u); | |
2193 | assert(key); | |
2194 | assert(value); | |
2195 | assert(fds); | |
2196 | ||
2197 | if (streq(key, "state")) { | |
2198 | ServiceState state; | |
2199 | ||
117dcc57 ZJS |
2200 | state = service_state_from_string(value); |
2201 | if (state < 0) | |
f2341e0a | 2202 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2203 | else |
2204 | s->deserialized_state = state; | |
f42806df LP |
2205 | } else if (streq(key, "result")) { |
2206 | ServiceResult f; | |
2207 | ||
2208 | f = service_result_from_string(value); | |
2209 | if (f < 0) | |
f2341e0a | 2210 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2211 | else if (f != SERVICE_SUCCESS) |
2212 | s->result = f; | |
2213 | ||
2214 | } else if (streq(key, "reload-result")) { | |
2215 | ServiceResult f; | |
2216 | ||
2217 | f = service_result_from_string(value); | |
2218 | if (f < 0) | |
f2341e0a | 2219 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2220 | else if (f != SERVICE_SUCCESS) |
2221 | s->reload_result = f; | |
a16e1123 | 2222 | |
a16e1123 | 2223 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2224 | pid_t pid; |
a16e1123 | 2225 | |
e364ad06 | 2226 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2227 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2228 | else |
e55224ca | 2229 | s->control_pid = pid; |
a16e1123 | 2230 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2231 | pid_t pid; |
a16e1123 | 2232 | |
e364ad06 | 2233 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2234 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2235 | else { |
2236 | service_set_main_pid(s, pid); | |
2237 | unit_watch_pid(UNIT(s), pid); | |
2238 | } | |
a16e1123 LP |
2239 | } else if (streq(key, "main-pid-known")) { |
2240 | int b; | |
2241 | ||
117dcc57 ZJS |
2242 | b = parse_boolean(value); |
2243 | if (b < 0) | |
f2341e0a | 2244 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2245 | else |
2246 | s->main_pid_known = b; | |
de1d4f9b WF |
2247 | } else if (streq(key, "bus-name-good")) { |
2248 | int b; | |
2249 | ||
2250 | b = parse_boolean(value); | |
2251 | if (b < 0) | |
2252 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2253 | else | |
2254 | s->bus_name_good = b; | |
d8ccf5fd DM |
2255 | } else if (streq(key, "bus-name-owner")) { |
2256 | r = free_and_strdup(&s->bus_name_owner, value); | |
2257 | if (r < 0) | |
2258 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2259 | } else if (streq(key, "status-text")) { |
2260 | char *t; | |
2261 | ||
f2341e0a LP |
2262 | r = cunescape(value, 0, &t); |
2263 | if (r < 0) | |
2264 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2265 | else { |
3a2776bc LP |
2266 | free(s->status_text); |
2267 | s->status_text = t; | |
2268 | } | |
2269 | ||
a16e1123 LP |
2270 | } else if (streq(key, "control-command")) { |
2271 | ServiceExecCommand id; | |
2272 | ||
117dcc57 ZJS |
2273 | id = service_exec_command_from_string(value); |
2274 | if (id < 0) | |
f2341e0a | 2275 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
a16e1123 LP |
2276 | else { |
2277 | s->control_command_id = id; | |
2278 | s->control_command = s->exec_command[id]; | |
2279 | } | |
2280 | } else if (streq(key, "socket-fd")) { | |
2281 | int fd; | |
2282 | ||
2283 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2284 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2285 | else { |
574634bc | 2286 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2287 | s->socket_fd = fdset_remove(fds, fd); |
2288 | } | |
e44da745 DM |
2289 | } else if (streq(key, "endpoint-fd")) { |
2290 | int fd; | |
2291 | ||
2292 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2293 | log_unit_debug(u, "Failed to parse endpoint-fd value: %s", value); |
e44da745 DM |
2294 | else { |
2295 | safe_close(s->bus_endpoint_fd); | |
2296 | s->bus_endpoint_fd = fdset_remove(fds, fd); | |
2297 | } | |
2339fc93 | 2298 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2299 | const char *fdv; |
2300 | size_t pf; | |
2339fc93 LP |
2301 | int fd; |
2302 | ||
8dd4c05b LP |
2303 | pf = strcspn(value, WHITESPACE); |
2304 | fdv = strndupa(value, pf); | |
2305 | ||
2306 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2307 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2308 | else { |
8dd4c05b LP |
2309 | _cleanup_free_ char *t = NULL; |
2310 | const char *fdn; | |
2311 | ||
2312 | fdn = value + pf; | |
2313 | fdn += strspn(fdn, WHITESPACE); | |
2314 | (void) cunescape(fdn, 0, &t); | |
2315 | ||
2316 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2317 | if (r < 0) |
f2341e0a | 2318 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
2339fc93 LP |
2319 | else if (r > 0) |
2320 | fdset_remove(fds, fd); | |
2321 | } | |
2322 | ||
ecdbca40 LP |
2323 | } else if (streq(key, "main-exec-status-pid")) { |
2324 | pid_t pid; | |
2325 | ||
e364ad06 | 2326 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2327 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2328 | else |
2329 | s->main_exec_status.pid = pid; | |
2330 | } else if (streq(key, "main-exec-status-code")) { | |
2331 | int i; | |
2332 | ||
e364ad06 | 2333 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2334 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2335 | else |
2336 | s->main_exec_status.code = i; | |
2337 | } else if (streq(key, "main-exec-status-status")) { | |
2338 | int i; | |
2339 | ||
e364ad06 | 2340 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2341 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2342 | else |
2343 | s->main_exec_status.status = i; | |
799fd0fd LP |
2344 | } else if (streq(key, "main-exec-status-start")) |
2345 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2346 | else if (streq(key, "main-exec-status-exit")) | |
2347 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2348 | else if (streq(key, "watchdog-timestamp")) |
2349 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2350 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2351 | int b; |
2352 | ||
2353 | b = parse_boolean(value); | |
2354 | if (b < 0) | |
f2341e0a | 2355 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2356 | else |
2357 | s->forbid_restart = b; | |
a34ceba6 LP |
2358 | } else if (streq(key, "stdin-fd")) { |
2359 | int fd; | |
2360 | ||
2361 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2362 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2363 | else { | |
2364 | asynchronous_close(s->stdin_fd); | |
2365 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2366 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2367 | } |
2368 | } else if (streq(key, "stdout-fd")) { | |
2369 | int fd; | |
2370 | ||
2371 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2372 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2373 | else { | |
2374 | asynchronous_close(s->stdout_fd); | |
2375 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2376 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2377 | } |
2378 | } else if (streq(key, "stderr-fd")) { | |
2379 | int fd; | |
2380 | ||
2381 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2382 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2383 | else { | |
2384 | asynchronous_close(s->stderr_fd); | |
2385 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2386 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 2387 | } |
c17ec25e | 2388 | } else |
f2341e0a | 2389 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2390 | |
2391 | return 0; | |
2392 | } | |
2393 | ||
44a6b1b6 | 2394 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2395 | const UnitActiveState *table; |
2396 | ||
87f0e418 | 2397 | assert(u); |
5cb5a6ff | 2398 | |
e056b01d LP |
2399 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2400 | ||
2401 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2402 | } |
2403 | ||
10a94420 LP |
2404 | static const char *service_sub_state_to_string(Unit *u) { |
2405 | assert(u); | |
2406 | ||
2407 | return service_state_to_string(SERVICE(u)->state); | |
2408 | } | |
2409 | ||
701cc384 LP |
2410 | static bool service_check_gc(Unit *u) { |
2411 | Service *s = SERVICE(u); | |
2412 | ||
2413 | assert(s); | |
2414 | ||
6d55002a LP |
2415 | /* Never clean up services that still have a process around, |
2416 | * even if the service is formally dead. */ | |
2417 | if (cgroup_good(s) > 0 || | |
2418 | main_pid_good(s) > 0 || | |
2419 | control_pid_good(s) > 0) | |
2420 | return true; | |
2421 | ||
6d55002a LP |
2422 | return false; |
2423 | } | |
2424 | ||
3a111838 MS |
2425 | static int service_retry_pid_file(Service *s) { |
2426 | int r; | |
2427 | ||
2428 | assert(s->pid_file); | |
2429 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2430 | ||
2431 | r = service_load_pid_file(s, false); | |
2432 | if (r < 0) | |
2433 | return r; | |
2434 | ||
2435 | service_unwatch_pid_file(s); | |
2436 | ||
f42806df | 2437 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2438 | return 0; |
2439 | } | |
2440 | ||
2441 | static int service_watch_pid_file(Service *s) { | |
2442 | int r; | |
2443 | ||
f2341e0a | 2444 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2445 | |
718db961 | 2446 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2447 | if (r < 0) |
2448 | goto fail; | |
2449 | ||
2450 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2451 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2452 | service_retry_pid_file(s); |
2453 | ||
2454 | return 0; | |
2455 | fail: | |
f2341e0a | 2456 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2457 | service_unwatch_pid_file(s); |
2458 | return r; | |
2459 | } | |
2460 | ||
2461 | static int service_demand_pid_file(Service *s) { | |
2462 | PathSpec *ps; | |
2463 | ||
2464 | assert(s->pid_file); | |
2465 | assert(!s->pid_file_pathspec); | |
2466 | ||
2467 | ps = new0(PathSpec, 1); | |
2468 | if (!ps) | |
2469 | return -ENOMEM; | |
2470 | ||
718db961 | 2471 | ps->unit = UNIT(s); |
3a111838 MS |
2472 | ps->path = strdup(s->pid_file); |
2473 | if (!ps->path) { | |
2474 | free(ps); | |
2475 | return -ENOMEM; | |
2476 | } | |
2477 | ||
2478 | path_kill_slashes(ps->path); | |
2479 | ||
2480 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2481 | * keep their PID file open all the time. */ | |
2482 | ps->type = PATH_MODIFIED; | |
2483 | ps->inotify_fd = -1; | |
2484 | ||
2485 | s->pid_file_pathspec = ps; | |
2486 | ||
2487 | return service_watch_pid_file(s); | |
2488 | } | |
2489 | ||
718db961 | 2490 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2491 | PathSpec *p = userdata; |
2492 | Service *s; | |
2493 | ||
2494 | assert(p); | |
2495 | ||
2496 | s = SERVICE(p->unit); | |
3a111838 MS |
2497 | |
2498 | assert(s); | |
2499 | assert(fd >= 0); | |
2500 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2501 | assert(s->pid_file_pathspec); | |
57020a3a | 2502 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2503 | |
f2341e0a | 2504 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2505 | |
e14c2802 | 2506 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2507 | goto fail; |
2508 | ||
2509 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2510 | return 0; |
3a111838 MS |
2511 | |
2512 | if (service_watch_pid_file(s) < 0) | |
2513 | goto fail; | |
2514 | ||
718db961 LP |
2515 | return 0; |
2516 | ||
3a111838 MS |
2517 | fail: |
2518 | service_unwatch_pid_file(s); | |
f42806df | 2519 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2520 | return 0; |
3a111838 MS |
2521 | } |
2522 | ||
a911bb9a LP |
2523 | static void service_notify_cgroup_empty_event(Unit *u) { |
2524 | Service *s = SERVICE(u); | |
2525 | ||
2526 | assert(u); | |
2527 | ||
f2341e0a | 2528 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2529 | |
2530 | switch (s->state) { | |
2531 | ||
2532 | /* Waiting for SIGCHLD is usually more interesting, | |
2533 | * because it includes return codes/signals. Which is | |
2534 | * why we ignore the cgroup events for most cases, | |
2535 | * except when we don't know pid which to expect the | |
2536 | * SIGCHLD for. */ | |
2537 | ||
2538 | case SERVICE_START: | |
2539 | case SERVICE_START_POST: | |
2540 | /* If we were hoping for the daemon to write its PID file, | |
2541 | * we can give up now. */ | |
2542 | if (s->pid_file_pathspec) { | |
f2341e0a | 2543 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2544 | |
a911bb9a LP |
2545 | service_unwatch_pid_file(s); |
2546 | if (s->state == SERVICE_START) | |
2547 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); | |
2548 | else | |
2549 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); | |
2550 | } | |
2551 | break; | |
2552 | ||
2553 | case SERVICE_RUNNING: | |
2554 | /* service_enter_running() will figure out what to do */ | |
2555 | service_enter_running(s, SERVICE_SUCCESS); | |
2556 | break; | |
2557 | ||
db2cb23b | 2558 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2559 | case SERVICE_STOP_SIGTERM: |
2560 | case SERVICE_STOP_SIGKILL: | |
2561 | ||
2562 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2563 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2564 | ||
2565 | break; | |
2566 | ||
2567 | case SERVICE_STOP_POST: | |
2568 | case SERVICE_FINAL_SIGTERM: | |
2569 | case SERVICE_FINAL_SIGKILL: | |
2570 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2571 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2572 | ||
2573 | break; | |
2574 | ||
2575 | default: | |
2576 | ; | |
2577 | } | |
2578 | } | |
2579 | ||
87f0e418 LP |
2580 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2581 | Service *s = SERVICE(u); | |
f42806df | 2582 | ServiceResult f; |
5cb5a6ff LP |
2583 | |
2584 | assert(s); | |
034c6ed7 LP |
2585 | assert(pid >= 0); |
2586 | ||
96342de6 LN |
2587 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2588 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2589 | f = SERVICE_SUCCESS; |
2590 | else if (code == CLD_EXITED) | |
2591 | f = SERVICE_FAILURE_EXIT_CODE; | |
2592 | else if (code == CLD_KILLED) | |
2593 | f = SERVICE_FAILURE_SIGNAL; | |
2594 | else if (code == CLD_DUMPED) | |
2595 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2596 | else |
cfc4eb4c | 2597 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2598 | |
2599 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2600 | /* Forking services may occasionally move to a new PID. |
2601 | * As long as they update the PID file before exiting the old | |
2602 | * PID, they're fine. */ | |
5375410b | 2603 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2604 | return; |
034c6ed7 | 2605 | |
034c6ed7 | 2606 | s->main_pid = 0; |
6ea832a2 | 2607 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2608 | |
867b3b7d | 2609 | if (s->main_command) { |
fbeefb45 LP |
2610 | /* If this is not a forking service than the |
2611 | * main process got started and hence we copy | |
2612 | * the exit status so that it is recorded both | |
2613 | * as main and as control process exit | |
2614 | * status */ | |
2615 | ||
867b3b7d | 2616 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2617 | |
867b3b7d | 2618 | if (s->main_command->ignore) |
f42806df | 2619 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2620 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2621 | ||
2622 | /* If this is a forked process, then we should | |
2623 | * ignore the return value if this was | |
2624 | * configured for the starter process */ | |
2625 | ||
2626 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2627 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2628 | } |
2629 | ||
f2341e0a LP |
2630 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2631 | LOG_UNIT_ID(u), | |
2632 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", | |
2633 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2634 | strna(code == CLD_EXITED |
2635 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2636 | : signal_to_string(status))), | |
f2341e0a LP |
2637 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2638 | "EXIT_STATUS=%i", status, | |
2639 | NULL); | |
f42806df LP |
2640 | |
2641 | if (f != SERVICE_SUCCESS) | |
2642 | s->result = f; | |
034c6ed7 | 2643 | |
867b3b7d LP |
2644 | if (s->main_command && |
2645 | s->main_command->command_next && | |
f42806df | 2646 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2647 | |
34e9ba66 LP |
2648 | /* There is another command to * |
2649 | * execute, so let's do that. */ | |
034c6ed7 | 2650 | |
f2341e0a | 2651 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2652 | service_run_next_main(s); |
034c6ed7 | 2653 | |
34e9ba66 LP |
2654 | } else { |
2655 | ||
2656 | /* The service exited, so the service is officially | |
2657 | * gone. */ | |
867b3b7d | 2658 | s->main_command = NULL; |
34e9ba66 LP |
2659 | |
2660 | switch (s->state) { | |
2661 | ||
2662 | case SERVICE_START_POST: | |
2663 | case SERVICE_RELOAD: | |
2664 | case SERVICE_STOP: | |
2665 | /* Need to wait until the operation is | |
2666 | * done */ | |
c4653a4d | 2667 | break; |
7d55e835 | 2668 | |
34e9ba66 LP |
2669 | case SERVICE_START: |
2670 | if (s->type == SERVICE_ONESHOT) { | |
2671 | /* This was our main goal, so let's go on */ | |
f42806df | 2672 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2673 | service_enter_start_post(s); |
2674 | else | |
f42806df | 2675 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2676 | break; |
34e9ba66 | 2677 | } |
034c6ed7 | 2678 | |
bfba3256 LP |
2679 | /* Fall through */ |
2680 | ||
34e9ba66 | 2681 | case SERVICE_RUNNING: |
f42806df | 2682 | service_enter_running(s, f); |
34e9ba66 | 2683 | break; |
034c6ed7 | 2684 | |
db2cb23b | 2685 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
2686 | case SERVICE_STOP_SIGTERM: |
2687 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2688 | |
34e9ba66 | 2689 | if (!control_pid_good(s)) |
f42806df | 2690 | service_enter_stop_post(s, f); |
5cb5a6ff | 2691 | |
34e9ba66 LP |
2692 | /* If there is still a control process, wait for that first */ |
2693 | break; | |
2694 | ||
bf108e55 LP |
2695 | case SERVICE_STOP_POST: |
2696 | case SERVICE_FINAL_SIGTERM: | |
2697 | case SERVICE_FINAL_SIGKILL: | |
2698 | ||
2699 | if (!control_pid_good(s)) | |
2700 | service_enter_dead(s, f, true); | |
2701 | break; | |
2702 | ||
34e9ba66 LP |
2703 | default: |
2704 | assert_not_reached("Uh, main process died at wrong time."); | |
2705 | } | |
034c6ed7 | 2706 | } |
5cb5a6ff | 2707 | |
034c6ed7 | 2708 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2709 | s->control_pid = 0; |
2710 | ||
b708e7ce | 2711 | if (s->control_command) { |
8bb2d17d | 2712 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2713 | |
b708e7ce | 2714 | if (s->control_command->ignore) |
f42806df | 2715 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2716 | } |
2717 | ||
f2341e0a LP |
2718 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
2719 | "Control process exited, code=%s status=%i", | |
2720 | sigchld_code_to_string(code), status); | |
f42806df LP |
2721 | |
2722 | if (f != SERVICE_SUCCESS) | |
2723 | s->result = f; | |
034c6ed7 | 2724 | |
88f3e0c9 LP |
2725 | /* Immediately get rid of the cgroup, so that the |
2726 | * kernel doesn't delay the cgroup empty messages for | |
2727 | * the service cgroup any longer than necessary */ | |
4ad49000 | 2728 | service_kill_control_processes(s); |
88f3e0c9 | 2729 | |
34e9ba66 LP |
2730 | if (s->control_command && |
2731 | s->control_command->command_next && | |
f42806df | 2732 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
2733 | |
2734 | /* There is another command to * | |
2735 | * execute, so let's do that. */ | |
2736 | ||
f2341e0a | 2737 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 2738 | service_run_next_control(s); |
034c6ed7 | 2739 | |
80876c20 | 2740 | } else { |
034c6ed7 LP |
2741 | /* No further commands for this step, so let's |
2742 | * figure out what to do next */ | |
2743 | ||
a16e1123 LP |
2744 | s->control_command = NULL; |
2745 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2746 | ||
f2341e0a | 2747 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 2748 | |
034c6ed7 LP |
2749 | switch (s->state) { |
2750 | ||
2751 | case SERVICE_START_PRE: | |
f42806df | 2752 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
2753 | service_enter_start(s); |
2754 | else | |
f42806df | 2755 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
2756 | break; |
2757 | ||
2758 | case SERVICE_START: | |
bfba3256 LP |
2759 | if (s->type != SERVICE_FORKING) |
2760 | /* Maybe spurious event due to a reload that changed the type? */ | |
2761 | break; | |
034c6ed7 | 2762 | |
f42806df LP |
2763 | if (f != SERVICE_SUCCESS) { |
2764 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
2765 | break; |
2766 | } | |
034c6ed7 | 2767 | |
3a111838 | 2768 | if (s->pid_file) { |
f42806df LP |
2769 | bool has_start_post; |
2770 | int r; | |
2771 | ||
3a111838 MS |
2772 | /* Let's try to load the pid file here if we can. |
2773 | * The PID file might actually be created by a START_POST | |
2774 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
2775 | |
2776 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
2777 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
2778 | if (!has_start_post && r < 0) { |
2779 | r = service_demand_pid_file(s); | |
2780 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2781 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2782 | break; |
2783 | } | |
034c6ed7 | 2784 | } else |
efdb0237 | 2785 | (void) service_search_main_pid(s); |
034c6ed7 | 2786 | |
3a111838 | 2787 | service_enter_start_post(s); |
034c6ed7 LP |
2788 | break; |
2789 | ||
2790 | case SERVICE_START_POST: | |
f42806df LP |
2791 | if (f != SERVICE_SUCCESS) { |
2792 | service_enter_stop(s, f); | |
2096e009 | 2793 | break; |
034c6ed7 LP |
2794 | } |
2795 | ||
2096e009 | 2796 | if (s->pid_file) { |
f42806df LP |
2797 | int r; |
2798 | ||
2799 | r = service_load_pid_file(s, true); | |
2096e009 MS |
2800 | if (r < 0) { |
2801 | r = service_demand_pid_file(s); | |
2802 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2803 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
2804 | break; |
2805 | } | |
2806 | } else | |
efdb0237 | 2807 | (void) service_search_main_pid(s); |
2096e009 | 2808 | |
f42806df | 2809 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 2810 | break; |
034c6ed7 LP |
2811 | |
2812 | case SERVICE_RELOAD: | |
f42806df | 2813 | if (f == SERVICE_SUCCESS) { |
5375410b | 2814 | service_load_pid_file(s, true); |
efdb0237 | 2815 | (void) service_search_main_pid(s); |
3185a36b LP |
2816 | } |
2817 | ||
f42806df LP |
2818 | s->reload_result = f; |
2819 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2820 | break; |
2821 | ||
2822 | case SERVICE_STOP: | |
f42806df | 2823 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
2824 | break; |
2825 | ||
db2cb23b | 2826 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
2827 | case SERVICE_STOP_SIGTERM: |
2828 | case SERVICE_STOP_SIGKILL: | |
2829 | if (main_pid_good(s) <= 0) | |
f42806df | 2830 | service_enter_stop_post(s, f); |
034c6ed7 LP |
2831 | |
2832 | /* If there is still a service | |
2833 | * process around, wait until | |
2834 | * that one quit, too */ | |
2835 | break; | |
2836 | ||
2837 | case SERVICE_STOP_POST: | |
2838 | case SERVICE_FINAL_SIGTERM: | |
2839 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
2840 | if (main_pid_good(s) <= 0) |
2841 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
2842 | break; |
2843 | ||
2844 | default: | |
2845 | assert_not_reached("Uh, control process died at wrong time."); | |
2846 | } | |
2847 | } | |
8c47c732 | 2848 | } |
c4e2ceae LP |
2849 | |
2850 | /* Notify clients about changed exit status */ | |
2851 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
2852 | |
2853 | /* We got one SIGCHLD for the service, let's watch all | |
2854 | * processes that are now running of the service, and watch | |
2855 | * that. Among the PIDs we then watch will be children | |
2856 | * reassigned to us, which hopefully allows us to identify | |
2857 | * when all children are gone */ | |
2858 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
2859 | unit_watch_all_pids(u); | |
2860 | ||
2861 | /* If the PID set is empty now, then let's finish this off */ | |
2862 | if (set_isempty(u->pids)) | |
2863 | service_notify_cgroup_empty_event(u); | |
034c6ed7 LP |
2864 | } |
2865 | ||
718db961 LP |
2866 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2867 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
2868 | |
2869 | assert(s); | |
718db961 | 2870 | assert(source == s->timer_event_source); |
034c6ed7 LP |
2871 | |
2872 | switch (s->state) { | |
2873 | ||
2874 | case SERVICE_START_PRE: | |
2875 | case SERVICE_START: | |
f2341e0a | 2876 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
f42806df | 2877 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
2878 | break; |
2879 | ||
034c6ed7 | 2880 | case SERVICE_START_POST: |
f2341e0a | 2881 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
f42806df | 2882 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2883 | break; |
2884 | ||
e2f3b44c | 2885 | case SERVICE_RELOAD: |
f2341e0a | 2886 | log_unit_warning(UNIT(s), "Reload operation timed out. Stopping."); |
478b6192 EV |
2887 | service_unwatch_control_pid(s); |
2888 | service_kill_control_processes(s); | |
f42806df LP |
2889 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
2890 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
2891 | break; |
2892 | ||
034c6ed7 | 2893 | case SERVICE_STOP: |
f2341e0a | 2894 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 2895 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2896 | break; |
2897 | ||
db2cb23b | 2898 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 2899 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 2900 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
2901 | break; |
2902 | ||
034c6ed7 | 2903 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 2904 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2905 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 2906 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2907 | } else { |
f2341e0a | 2908 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 2909 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
2910 | } |
2911 | ||
034c6ed7 LP |
2912 | break; |
2913 | ||
2914 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 2915 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
2916 | * Must be something we cannot kill, so let's just be |
2917 | * weirded out and continue */ | |
2918 | ||
f2341e0a | 2919 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 2920 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2921 | break; |
2922 | ||
2923 | case SERVICE_STOP_POST: | |
f2341e0a | 2924 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 2925 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2926 | break; |
2927 | ||
2928 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 2929 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2930 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 2931 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2932 | } else { |
f2341e0a | 2933 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 2934 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
2935 | } |
2936 | ||
034c6ed7 LP |
2937 | break; |
2938 | ||
2939 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 2940 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 2941 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
2942 | break; |
2943 | ||
2944 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 2945 | log_unit_info(UNIT(s), |
ef417cfd | 2946 | s->restart_usec > 0 ? |
f2341e0a LP |
2947 | "Service hold-off time over, scheduling restart." : |
2948 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
2949 | service_enter_restart(s); |
2950 | break; | |
2951 | ||
2952 | default: | |
2953 | assert_not_reached("Timeout at wrong time."); | |
2954 | } | |
718db961 LP |
2955 | |
2956 | return 0; | |
2957 | } | |
2958 | ||
2959 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
2960 | Service *s = SERVICE(userdata); | |
a7850c7d | 2961 | char t[FORMAT_TIMESPAN_MAX]; |
718db961 LP |
2962 | |
2963 | assert(s); | |
2964 | assert(source == s->watchdog_event_source); | |
2965 | ||
f2341e0a | 2966 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
a7850c7d | 2967 | format_timespan(t, sizeof(t), s->watchdog_usec, 1)); |
8bb2d17d | 2968 | |
db2cb23b | 2969 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 2970 | |
718db961 | 2971 | return 0; |
5cb5a6ff LP |
2972 | } |
2973 | ||
a354329f | 2974 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 2975 | Service *s = SERVICE(u); |
308d72dc | 2976 | _cleanup_free_ char *cc = NULL; |
30b5275a | 2977 | bool notify_dbus = false; |
308d72dc | 2978 | const char *e; |
8c47c732 LP |
2979 | |
2980 | assert(u); | |
2981 | ||
308d72dc | 2982 | cc = strv_join(tags, ", "); |
da13d4d2 | 2983 | |
c952c6ec | 2984 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 2985 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 2986 | return; |
34959677 | 2987 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 2988 | if (s->main_pid != 0) |
f2341e0a | 2989 | 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 | 2990 | else |
f2341e0a | 2991 | 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 | 2992 | return; |
34959677 TG |
2993 | } else |
2994 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 2995 | |
8c47c732 | 2996 | /* Interpret MAINPID= */ |
28849dba | 2997 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 2998 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 2999 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 3000 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
8c47c732 | 3001 | else { |
5925dd3c | 3002 | service_set_main_pid(s, pid); |
7400b9d2 | 3003 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 3004 | notify_dbus = true; |
8c47c732 LP |
3005 | } |
3006 | } | |
3007 | ||
308d72dc LP |
3008 | /* Interpret RELOADING= */ |
3009 | if (strv_find(tags, "RELOADING=1")) { | |
3010 | ||
308d72dc LP |
3011 | s->notify_state = NOTIFY_RELOADING; |
3012 | ||
3013 | if (s->state == SERVICE_RUNNING) | |
3014 | service_enter_reload_by_notify(s); | |
3015 | ||
3016 | notify_dbus = true; | |
3017 | } | |
3018 | ||
8c47c732 | 3019 | /* Interpret READY= */ |
308d72dc LP |
3020 | if (strv_find(tags, "READY=1")) { |
3021 | ||
308d72dc LP |
3022 | s->notify_state = NOTIFY_READY; |
3023 | ||
3024 | /* Type=notify services inform us about completed | |
3025 | * initialization with READY=1 */ | |
3026 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3027 | service_enter_start_post(s); | |
3028 | ||
3029 | /* Sending READY=1 while we are reloading informs us | |
3030 | * that the reloading is complete */ | |
3031 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3032 | service_enter_running(s, SERVICE_SUCCESS); | |
3033 | ||
3034 | notify_dbus = true; | |
3035 | } | |
3036 | ||
3037 | /* Interpret STOPPING= */ | |
3038 | if (strv_find(tags, "STOPPING=1")) { | |
3039 | ||
308d72dc LP |
3040 | s->notify_state = NOTIFY_STOPPING; |
3041 | ||
3042 | if (s->state == SERVICE_RUNNING) | |
3043 | service_enter_stop_by_notify(s); | |
3044 | ||
30b5275a | 3045 | notify_dbus = true; |
8c47c732 LP |
3046 | } |
3047 | ||
3048 | /* Interpret STATUS= */ | |
28849dba | 3049 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3050 | if (e) { |
28849dba | 3051 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3052 | |
28849dba LP |
3053 | if (!isempty(e)) { |
3054 | if (!utf8_is_valid(e)) | |
f2341e0a | 3055 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 3056 | else { |
28849dba LP |
3057 | t = strdup(e); |
3058 | if (!t) | |
3059 | log_oom(); | |
3a2776bc | 3060 | } |
28849dba | 3061 | } |
8c47c732 | 3062 | |
30b5275a | 3063 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3064 | |
3a2776bc LP |
3065 | free(s->status_text); |
3066 | s->status_text = t; | |
28849dba LP |
3067 | t = NULL; |
3068 | ||
30b5275a | 3069 | notify_dbus = true; |
28849dba | 3070 | } |
8c47c732 | 3071 | } |
842129f5 | 3072 | |
4774e357 | 3073 | /* Interpret ERRNO= */ |
28849dba | 3074 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3075 | if (e) { |
3076 | int status_errno; | |
3077 | ||
28849dba | 3078 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3079 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3080 | else { |
4774e357 MAA |
3081 | if (s->status_errno != status_errno) { |
3082 | s->status_errno = status_errno; | |
3083 | notify_dbus = true; | |
3084 | } | |
3085 | } | |
3086 | } | |
3087 | ||
6f285378 | 3088 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3089 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3090 | service_reset_watchdog(s); |
c4e2ceae | 3091 | |
8dd4c05b LP |
3092 | if (strv_find(tags, "FDSTORE=1")) { |
3093 | const char *name; | |
3094 | ||
3095 | name = strv_find_startswith(tags, "FDNAME="); | |
3096 | if (name && !fdname_is_valid(name)) { | |
3097 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3098 | name = NULL; | |
3099 | } | |
3100 | ||
3101 | service_add_fd_store_set(s, fds, name); | |
3102 | } | |
a354329f | 3103 | |
c4e2ceae | 3104 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3105 | if (notify_dbus) |
3106 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3107 | } |
3108 | ||
68db7a3b ZJS |
3109 | static int service_get_timeout(Unit *u, uint64_t *timeout) { |
3110 | Service *s = SERVICE(u); | |
3111 | int r; | |
3112 | ||
3113 | if (!s->timer_event_source) | |
3114 | return 0; | |
3115 | ||
3116 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
3117 | if (r < 0) | |
3118 | return r; | |
3119 | ||
3120 | return 1; | |
3121 | } | |
3122 | ||
05e343b7 LP |
3123 | static void service_bus_name_owner_change( |
3124 | Unit *u, | |
3125 | const char *name, | |
3126 | const char *old_owner, | |
3127 | const char *new_owner) { | |
3128 | ||
3129 | Service *s = SERVICE(u); | |
718db961 | 3130 | int r; |
05e343b7 LP |
3131 | |
3132 | assert(s); | |
3133 | assert(name); | |
3134 | ||
3135 | assert(streq(s->bus_name, name)); | |
3136 | assert(old_owner || new_owner); | |
3137 | ||
3138 | if (old_owner && new_owner) | |
f2341e0a | 3139 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3140 | else if (old_owner) |
f2341e0a | 3141 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3142 | else |
f2341e0a | 3143 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3144 | |
3145 | s->bus_name_good = !!new_owner; | |
3146 | ||
d8ccf5fd DM |
3147 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
3148 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
3149 | if (r < 0) { | |
3150 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
3151 | return; | |
3152 | } | |
3153 | ||
05e343b7 LP |
3154 | if (s->type == SERVICE_DBUS) { |
3155 | ||
3156 | /* service_enter_running() will figure out what to | |
3157 | * do */ | |
3158 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3159 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3160 | else if (s->state == SERVICE_START && new_owner) |
3161 | service_enter_start_post(s); | |
3162 | ||
3163 | } else if (new_owner && | |
3164 | s->main_pid <= 0 && | |
3165 | (s->state == SERVICE_START || | |
3166 | s->state == SERVICE_START_POST || | |
3167 | s->state == SERVICE_RUNNING || | |
3168 | s->state == SERVICE_RELOAD)) { | |
3169 | ||
4afd3348 | 3170 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 3171 | pid_t pid; |
05e343b7 | 3172 | |
718db961 | 3173 | /* Try to acquire PID from bus service */ |
05e343b7 | 3174 | |
056f95d0 | 3175 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3176 | if (r >= 0) |
3177 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3178 | if (r >= 0) { |
f2341e0a | 3179 | log_unit_debug(u, "D-Bus name %s is now owned by process %u", name, (unsigned) pid); |
05e343b7 | 3180 | |
718db961 LP |
3181 | service_set_main_pid(s, pid); |
3182 | unit_watch_pid(UNIT(s), pid); | |
3183 | } | |
7400b9d2 | 3184 | } |
05e343b7 LP |
3185 | } |
3186 | ||
16115b0a | 3187 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3188 | _cleanup_free_ char *peer = NULL; |
3189 | int r; | |
57020a3a | 3190 | |
4f2d528d LP |
3191 | assert(s); |
3192 | assert(fd >= 0); | |
3193 | ||
3194 | /* This is called by the socket code when instantiating a new | |
3195 | * service for a stream socket and the socket needs to be | |
3196 | * configured. */ | |
3197 | ||
1124fe6f | 3198 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3199 | return -EINVAL; |
3200 | ||
3201 | if (s->socket_fd >= 0) | |
3202 | return -EBUSY; | |
3203 | ||
3204 | if (s->state != SERVICE_DEAD) | |
3205 | return -EAGAIN; | |
3206 | ||
366b7db4 | 3207 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
3208 | |
3209 | if (UNIT(s)->description) { | |
3210 | _cleanup_free_ char *a; | |
3211 | ||
3212 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
3213 | if (!a) | |
3214 | return -ENOMEM; | |
3215 | ||
3216 | r = unit_set_description(UNIT(s), a); | |
3217 | } else | |
3218 | r = unit_set_description(UNIT(s), peer); | |
3219 | ||
3220 | if (r < 0) | |
3221 | return r; | |
3222 | } | |
3223 | ||
4f2d528d | 3224 | s->socket_fd = fd; |
16115b0a | 3225 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3226 | |
57020a3a LP |
3227 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
3228 | ||
3229 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
3230 | } |
3231 | ||
fdf20a31 | 3232 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3233 | Service *s = SERVICE(u); |
3234 | ||
3235 | assert(s); | |
3236 | ||
fdf20a31 | 3237 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3238 | service_set_state(s, SERVICE_DEAD); |
3239 | ||
f42806df LP |
3240 | s->result = SERVICE_SUCCESS; |
3241 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
3242 | |
3243 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
3244 | } |
3245 | ||
718db961 | 3246 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3247 | Service *s = SERVICE(u); |
41efeaec | 3248 | |
814cc562 | 3249 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3250 | } |
3251 | ||
94f04347 | 3252 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3253 | [SERVICE_RESTART_NO] = "no", |
3254 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3255 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3256 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3257 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3258 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3259 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3260 | }; |
3261 | ||
3262 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3263 | ||
3264 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3265 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3266 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3267 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3268 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3269 | [SERVICE_NOTIFY] = "notify", |
3270 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3271 | }; |
3272 | ||
3273 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3274 | ||
e537352b | 3275 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3276 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3277 | [SERVICE_EXEC_START] = "ExecStart", | |
3278 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3279 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3280 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3281 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3282 | }; | |
3283 | ||
3284 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3285 | ||
c952c6ec LP |
3286 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3287 | [NOTIFY_NONE] = "none", | |
3288 | [NOTIFY_MAIN] = "main", | |
3289 | [NOTIFY_ALL] = "all" | |
3290 | }; | |
3291 | ||
3292 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3293 | ||
308d72dc LP |
3294 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3295 | [NOTIFY_UNKNOWN] = "unknown", | |
3296 | [NOTIFY_READY] = "ready", | |
3297 | [NOTIFY_RELOADING] = "reloading", | |
3298 | [NOTIFY_STOPPING] = "stopping", | |
3299 | }; | |
3300 | ||
3301 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3302 | ||
f42806df LP |
3303 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3304 | [SERVICE_SUCCESS] = "success", | |
3305 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3306 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3307 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3308 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3309 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
3310 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
3311 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
3312 | }; |
3313 | ||
3314 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3315 | ||
87f0e418 | 3316 | const UnitVTable service_vtable = { |
7d17cfbc | 3317 | .object_size = sizeof(Service), |
718db961 LP |
3318 | .exec_context_offset = offsetof(Service, exec_context), |
3319 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3320 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3321 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3322 | |
f975e971 LP |
3323 | .sections = |
3324 | "Unit\0" | |
3325 | "Service\0" | |
3326 | "Install\0", | |
4ad49000 | 3327 | .private_section = "Service", |
71645aca | 3328 | |
034c6ed7 LP |
3329 | .init = service_init, |
3330 | .done = service_done, | |
a16e1123 | 3331 | .load = service_load, |
a354329f | 3332 | .release_resources = service_release_resources, |
a16e1123 LP |
3333 | |
3334 | .coldplug = service_coldplug, | |
034c6ed7 | 3335 | |
5cb5a6ff LP |
3336 | .dump = service_dump, |
3337 | ||
3338 | .start = service_start, | |
3339 | .stop = service_stop, | |
3340 | .reload = service_reload, | |
3341 | ||
034c6ed7 LP |
3342 | .can_reload = service_can_reload, |
3343 | ||
8a0867d6 LP |
3344 | .kill = service_kill, |
3345 | ||
a16e1123 LP |
3346 | .serialize = service_serialize, |
3347 | .deserialize_item = service_deserialize_item, | |
3348 | ||
5cb5a6ff | 3349 | .active_state = service_active_state, |
10a94420 | 3350 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3351 | |
701cc384 | 3352 | .check_gc = service_check_gc, |
701cc384 | 3353 | |
034c6ed7 | 3354 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3355 | |
fdf20a31 | 3356 | .reset_failed = service_reset_failed, |
5632e374 | 3357 | |
4ad49000 | 3358 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3359 | .notify_message = service_notify_message, |
8e274523 | 3360 | |
05e343b7 | 3361 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3362 | |
718db961 | 3363 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3364 | .bus_set_property = bus_service_set_property, |
3365 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3366 | |
68db7a3b | 3367 | .get_timeout = service_get_timeout, |
718db961 LP |
3368 | .can_transient = true, |
3369 | ||
c6918296 MS |
3370 | .status_message_formats = { |
3371 | .starting_stopping = { | |
3372 | [0] = "Starting %s...", | |
3373 | [1] = "Stopping %s...", | |
3374 | }, | |
3375 | .finished_start_job = { | |
3376 | [JOB_DONE] = "Started %s.", | |
3377 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3378 | }, |
3379 | .finished_stop_job = { | |
3380 | [JOB_DONE] = "Stopped %s.", | |
3381 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3382 | }, |
3383 | }, | |
5cb5a6ff | 3384 | }; |