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Commit | Line | Data |
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a7334b09 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2010 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
a7334b09 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
5cb5a6ff | 20 | #include <errno.h> |
034c6ed7 | 21 | #include <signal.h> |
2c4104f0 | 22 | #include <unistd.h> |
5cb5a6ff | 23 | |
b5efdb8a | 24 | #include "alloc-util.h" |
574634bc | 25 | #include "async.h" |
4f5dd394 LP |
26 | #include "bus-error.h" |
27 | #include "bus-kernel.h" | |
28 | #include "bus-util.h" | |
4139c1b2 | 29 | #include "dbus-service.h" |
f6a6225e | 30 | #include "def.h" |
4d1a6904 | 31 | #include "env-util.h" |
4f5dd394 LP |
32 | #include "escape.h" |
33 | #include "exit-status.h" | |
3ffd4af2 | 34 | #include "fd-util.h" |
a5c32cff | 35 | #include "fileio.h" |
6482f626 | 36 | #include "formats-util.h" |
f4f15635 | 37 | #include "fs-util.h" |
4f5dd394 LP |
38 | #include "load-dropin.h" |
39 | #include "load-fragment.h" | |
40 | #include "log.h" | |
41 | #include "manager.h" | |
6bedfcbb | 42 | #include "parse-util.h" |
4f5dd394 | 43 | #include "path-util.h" |
0b452006 | 44 | #include "process-util.h" |
3ffd4af2 | 45 | #include "service.h" |
24882e06 | 46 | #include "signal-util.h" |
4f5dd394 | 47 | #include "special.h" |
8b43440b | 48 | #include "string-table.h" |
07630cea | 49 | #include "string-util.h" |
4f5dd394 LP |
50 | #include "strv.h" |
51 | #include "unit-name.h" | |
52 | #include "unit-printf.h" | |
53 | #include "unit.h" | |
54 | #include "utf8.h" | |
55 | #include "util.h" | |
034c6ed7 | 56 | |
acbb0225 | 57 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
58 | [SERVICE_DEAD] = UNIT_INACTIVE, |
59 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
60 | [SERVICE_START] = UNIT_ACTIVATING, | |
61 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
62 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 63 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 64 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 65 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
db2cb23b | 66 | [SERVICE_STOP_SIGABRT] = UNIT_DEACTIVATING, |
87f0e418 LP |
67 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
68 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
69 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
70 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
71 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 72 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 73 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 74 | }; |
5cb5a6ff | 75 | |
e056b01d LP |
76 | /* For Type=idle we never want to delay any other jobs, hence we |
77 | * consider idle jobs active as soon as we start working on them */ | |
78 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
79 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
80 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
81 | [SERVICE_START] = UNIT_ACTIVE, | |
82 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
83 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
84 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
85 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
86 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
db2cb23b | 87 | [SERVICE_STOP_SIGABRT] = UNIT_DEACTIVATING, |
e056b01d LP |
88 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
89 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
90 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
91 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
92 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
93 | [SERVICE_FAILED] = UNIT_FAILED, | |
94 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
95 | }; | |
96 | ||
718db961 LP |
97 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
98 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
99 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
100 | ||
842129f5 | 101 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 102 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 103 | |
a16e1123 LP |
104 | static void service_init(Unit *u) { |
105 | Service *s = SERVICE(u); | |
106 | ||
107 | assert(u); | |
ac155bb8 | 108 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 109 | |
1f19a534 OS |
110 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
111 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
112 | s->restart_usec = u->manager->default_restart_usec; | |
36c16a7c | 113 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 114 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 115 | s->socket_fd = -1; |
a34ceba6 | 116 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 117 | s->guess_main_pid = true; |
a16e1123 | 118 | |
a16e1123 LP |
119 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
120 | } | |
121 | ||
5e94833f LP |
122 | static void service_unwatch_control_pid(Service *s) { |
123 | assert(s); | |
124 | ||
125 | if (s->control_pid <= 0) | |
126 | return; | |
127 | ||
128 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
129 | s->control_pid = 0; | |
130 | } | |
131 | ||
132 | static void service_unwatch_main_pid(Service *s) { | |
133 | assert(s); | |
134 | ||
135 | if (s->main_pid <= 0) | |
136 | return; | |
137 | ||
138 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
139 | s->main_pid = 0; | |
140 | } | |
141 | ||
3e52541e MS |
142 | static void service_unwatch_pid_file(Service *s) { |
143 | if (!s->pid_file_pathspec) | |
144 | return; | |
145 | ||
f2341e0a | 146 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 147 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 148 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 149 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
150 | } |
151 | ||
5925dd3c | 152 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
153 | pid_t ppid; |
154 | ||
5925dd3c LP |
155 | assert(s); |
156 | ||
157 | if (pid <= 1) | |
158 | return -EINVAL; | |
159 | ||
160 | if (pid == getpid()) | |
161 | return -EINVAL; | |
162 | ||
7400b9d2 LP |
163 | if (s->main_pid == pid && s->main_pid_known) |
164 | return 0; | |
165 | ||
166 | if (s->main_pid != pid) { | |
167 | service_unwatch_main_pid(s); | |
168 | exec_status_start(&s->main_exec_status, pid); | |
169 | } | |
41efeaec | 170 | |
6dfa5494 LP |
171 | s->main_pid = pid; |
172 | s->main_pid_known = true; | |
173 | ||
6bc73acb | 174 | if (get_process_ppid(pid, &ppid) >= 0 && ppid != getpid()) { |
f2341e0a | 175 | 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 |
176 | s->main_pid_alien = true; |
177 | } else | |
178 | s->main_pid_alien = false; | |
5925dd3c LP |
179 | |
180 | return 0; | |
181 | } | |
182 | ||
3e7a1f50 | 183 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
184 | assert(s); |
185 | ||
5cc3985e | 186 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 187 | |
5cc3985e | 188 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 189 | |
5cc3985e LP |
190 | if (UNIT_ISSET(s->accept_socket)) { |
191 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
192 | unit_ref_unset(&s->accept_socket); | |
193 | } | |
6cf6bbc2 LP |
194 | } |
195 | ||
a6927d7f MO |
196 | static void service_stop_watchdog(Service *s) { |
197 | assert(s); | |
198 | ||
718db961 | 199 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 200 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
201 | } |
202 | ||
842129f5 | 203 | static void service_start_watchdog(Service *s) { |
bb242b7b MO |
204 | int r; |
205 | ||
206 | assert(s); | |
207 | ||
842129f5 | 208 | if (s->watchdog_usec <= 0) |
bb242b7b MO |
209 | return; |
210 | ||
718db961 | 211 | if (s->watchdog_event_source) { |
36c16a7c | 212 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, s->watchdog_usec)); |
718db961 | 213 | if (r < 0) { |
f2341e0a | 214 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
215 | return; |
216 | } | |
217 | ||
842129f5 | 218 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 219 | } else { |
6a0f1f6d LP |
220 | r = sd_event_add_time( |
221 | UNIT(s)->manager->event, | |
222 | &s->watchdog_event_source, | |
223 | CLOCK_MONOTONIC, | |
36c16a7c | 224 | usec_add(s->watchdog_timestamp.monotonic, s->watchdog_usec), 0, |
6a0f1f6d | 225 | service_dispatch_watchdog, s); |
c4ef3317 | 226 | if (r < 0) { |
f2341e0a | 227 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
228 | return; |
229 | } | |
230 | ||
7dfbe2e3 TG |
231 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
232 | ||
c4ef3317 LP |
233 | /* Let's process everything else which might be a sign |
234 | * of living before we consider a service died. */ | |
235 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
236 | } | |
718db961 | 237 | |
bb242b7b | 238 | if (r < 0) |
f2341e0a | 239 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
240 | } |
241 | ||
a6927d7f MO |
242 | static void service_reset_watchdog(Service *s) { |
243 | assert(s); | |
244 | ||
245 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 246 | service_start_watchdog(s); |
a6927d7f MO |
247 | } |
248 | ||
a354329f LP |
249 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
250 | ||
251 | if (!fs) | |
252 | return; | |
253 | ||
254 | if (fs->service) { | |
255 | assert(fs->service->n_fd_store > 0); | |
256 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
257 | fs->service->n_fd_store--; | |
258 | } | |
259 | ||
260 | if (fs->event_source) { | |
261 | sd_event_source_set_enabled(fs->event_source, SD_EVENT_OFF); | |
262 | sd_event_source_unref(fs->event_source); | |
263 | } | |
264 | ||
8dd4c05b | 265 | free(fs->fdname); |
a354329f LP |
266 | safe_close(fs->fd); |
267 | free(fs); | |
268 | } | |
269 | ||
270 | static void service_release_resources(Unit *u) { | |
271 | Service *s = SERVICE(u); | |
272 | ||
273 | assert(s); | |
274 | ||
a34ceba6 | 275 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
276 | return; |
277 | ||
f2341e0a | 278 | log_unit_debug(u, "Releasing all resources."); |
a354329f | 279 | |
a34ceba6 LP |
280 | s->stdin_fd = safe_close(s->stdin_fd); |
281 | s->stdout_fd = safe_close(s->stdout_fd); | |
282 | s->stderr_fd = safe_close(s->stderr_fd); | |
283 | ||
a354329f LP |
284 | while (s->fd_store) |
285 | service_fd_store_unlink(s->fd_store); | |
286 | ||
287 | assert(s->n_fd_store == 0); | |
288 | } | |
289 | ||
87f0e418 LP |
290 | static void service_done(Unit *u) { |
291 | Service *s = SERVICE(u); | |
44d8db9e LP |
292 | |
293 | assert(s); | |
294 | ||
a1e58e8e LP |
295 | s->pid_file = mfree(s->pid_file); |
296 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 297 | |
613b411c | 298 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 299 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 300 | s->control_command = NULL; |
867b3b7d | 301 | s->main_command = NULL; |
44d8db9e | 302 | |
37520c1b LP |
303 | exit_status_set_free(&s->restart_prevent_status); |
304 | exit_status_set_free(&s->restart_force_status); | |
305 | exit_status_set_free(&s->success_status); | |
96342de6 | 306 | |
44d8db9e LP |
307 | /* This will leak a process, but at least no memory or any of |
308 | * our resources */ | |
5e94833f LP |
309 | service_unwatch_main_pid(s); |
310 | service_unwatch_control_pid(s); | |
3e52541e | 311 | service_unwatch_pid_file(s); |
44d8db9e | 312 | |
05e343b7 | 313 | if (s->bus_name) { |
ac155bb8 | 314 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 315 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
316 | } |
317 | ||
d8ccf5fd DM |
318 | s->bus_name_owner = mfree(s->bus_name_owner); |
319 | ||
4f2d528d LP |
320 | service_close_socket_fd(s); |
321 | ||
57020a3a | 322 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 323 | |
bb242b7b MO |
324 | service_stop_watchdog(s); |
325 | ||
718db961 | 326 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
a354329f LP |
327 | |
328 | service_release_resources(u); | |
718db961 LP |
329 | } |
330 | ||
2339fc93 LP |
331 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
332 | ServiceFDStore *fs = userdata; | |
333 | ||
334 | assert(e); | |
335 | assert(fs); | |
336 | ||
337 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
338 | service_fd_store_unlink(fs); | |
339 | return 0; | |
340 | } | |
341 | ||
8dd4c05b | 342 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
343 | ServiceFDStore *fs; |
344 | int r; | |
345 | ||
346 | assert(s); | |
347 | assert(fd >= 0); | |
348 | ||
349 | if (s->n_fd_store >= s->n_fd_store_max) | |
350 | return 0; | |
351 | ||
352 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
353 | r = same_fd(fs->fd, fd); | |
354 | if (r < 0) | |
355 | return r; | |
356 | if (r > 0) { | |
357 | /* Already included */ | |
358 | safe_close(fd); | |
359 | return 1; | |
360 | } | |
361 | } | |
362 | ||
363 | fs = new0(ServiceFDStore, 1); | |
364 | if (!fs) | |
365 | return -ENOMEM; | |
366 | ||
367 | fs->fd = fd; | |
368 | fs->service = s; | |
8dd4c05b | 369 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 370 | if (!fs->fdname) { |
371 | free(fs); | |
8dd4c05b | 372 | return -ENOMEM; |
17dec0f7 | 373 | } |
2339fc93 LP |
374 | |
375 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
376 | if (r < 0) { | |
8dd4c05b | 377 | free(fs->fdname); |
2339fc93 LP |
378 | free(fs); |
379 | return r; | |
380 | } | |
381 | ||
7dfbe2e3 TG |
382 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); |
383 | ||
2339fc93 LP |
384 | LIST_PREPEND(fd_store, s->fd_store, fs); |
385 | s->n_fd_store++; | |
386 | ||
387 | return 1; | |
388 | } | |
389 | ||
8dd4c05b | 390 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
391 | int r; |
392 | ||
393 | assert(s); | |
394 | ||
395 | if (fdset_size(fds) <= 0) | |
396 | return 0; | |
397 | ||
398 | while (s->n_fd_store < s->n_fd_store_max) { | |
399 | _cleanup_close_ int fd = -1; | |
400 | ||
401 | fd = fdset_steal_first(fds); | |
402 | if (fd < 0) | |
403 | break; | |
404 | ||
8dd4c05b | 405 | r = service_add_fd_store(s, fd, name); |
2339fc93 | 406 | if (r < 0) |
f2341e0a | 407 | return log_unit_error_errno(UNIT(s), r, "Couldn't add fd to fd store: %m"); |
2339fc93 | 408 | if (r > 0) { |
f2341e0a | 409 | log_unit_debug(UNIT(s), "Added fd to fd store."); |
2339fc93 LP |
410 | fd = -1; |
411 | } | |
412 | } | |
413 | ||
414 | if (fdset_size(fds) > 0) | |
4b172825 | 415 | log_unit_warning(UNIT(s), "Tried to store more fds than FileDescriptorStoreMax=%u allows, closing remaining.", s->n_fd_store_max); |
2339fc93 LP |
416 | |
417 | return 0; | |
418 | } | |
419 | ||
718db961 LP |
420 | static int service_arm_timer(Service *s, usec_t usec) { |
421 | int r; | |
422 | ||
423 | assert(s); | |
424 | ||
718db961 | 425 | if (s->timer_event_source) { |
36c16a7c | 426 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
427 | if (r < 0) |
428 | return r; | |
429 | ||
430 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
431 | } | |
432 | ||
36c16a7c LP |
433 | if (usec == USEC_INFINITY) |
434 | return 0; | |
435 | ||
7dfbe2e3 | 436 | r = sd_event_add_time( |
6a0f1f6d LP |
437 | UNIT(s)->manager->event, |
438 | &s->timer_event_source, | |
439 | CLOCK_MONOTONIC, | |
36c16a7c | 440 | usec, 0, |
6a0f1f6d | 441 | service_dispatch_timer, s); |
7dfbe2e3 TG |
442 | if (r < 0) |
443 | return r; | |
444 | ||
445 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
446 | ||
447 | return 0; | |
44d8db9e LP |
448 | } |
449 | ||
243b1432 LP |
450 | static int service_verify(Service *s) { |
451 | assert(s); | |
452 | ||
1124fe6f | 453 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
454 | return 0; |
455 | ||
96fb8242 | 456 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) { |
f2341e0a | 457 | log_unit_error(UNIT(s), "Service lacks both ExecStart= and ExecStop= setting. Refusing."); |
243b1432 LP |
458 | return -EINVAL; |
459 | } | |
460 | ||
96fb8242 | 461 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 462 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
96fb8242 LP |
463 | return -EINVAL; |
464 | } | |
465 | ||
466 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START]) { | |
f2341e0a | 467 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for RemainAfterExit=yes services. Refusing."); |
96fb8242 LP |
468 | return -EINVAL; |
469 | } | |
470 | ||
471 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 472 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6cf6bbc2 LP |
473 | return -EINVAL; |
474 | } | |
475 | ||
b0693d30 | 476 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
f2341e0a | 477 | log_unit_error(UNIT(s), "Service has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing."); |
37520c1b LP |
478 | return -EINVAL; |
479 | } | |
480 | ||
55ebf98c | 481 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 482 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
b0693d30 MW |
483 | return -EINVAL; |
484 | } | |
485 | ||
05e343b7 | 486 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 487 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
4d0e5dbd LP |
488 | return -EINVAL; |
489 | } | |
490 | ||
7e2668c6 | 491 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 492 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 493 | |
ebc2259d | 494 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
f2341e0a | 495 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
05e343b7 LP |
496 | return -EINVAL; |
497 | } | |
498 | ||
6b7e5923 PS |
499 | if (s->usb_function_descriptors && !s->usb_function_strings) |
500 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
501 | ||
502 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
503 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
504 | ||
36c16a7c LP |
505 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
506 | log_unit_warning(UNIT(s), "MaxRuntimeSec= has no effect in combination with Type=oneshot. Ignoring."); | |
507 | ||
243b1432 LP |
508 | return 0; |
509 | } | |
510 | ||
a40eb732 LP |
511 | static int service_add_default_dependencies(Service *s) { |
512 | int r; | |
513 | ||
514 | assert(s); | |
515 | ||
45f06b34 LP |
516 | if (!UNIT(s)->default_dependencies) |
517 | return 0; | |
518 | ||
a40eb732 LP |
519 | /* Add a number of automatic dependencies useful for the |
520 | * majority of services. */ | |
521 | ||
463d0d15 | 522 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
523 | /* First, pull in the really early boot stuff, and |
524 | * require it, so that we fail if we can't acquire | |
525 | * it. */ | |
526 | ||
527 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
528 | if (r < 0) | |
529 | return r; | |
530 | } else { | |
531 | ||
532 | /* In the --user instance there's no sysinit.target, | |
533 | * in that case require basic.target instead. */ | |
534 | ||
535 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); | |
536 | if (r < 0) | |
537 | return r; | |
538 | } | |
539 | ||
540 | /* Second, if the rest of the base system is in the same | |
541 | * transaction, order us after it, but do not pull it in or | |
542 | * even require it. */ | |
543 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true); | |
fccd44ec KS |
544 | if (r < 0) |
545 | return r; | |
a40eb732 | 546 | |
cb4c247d | 547 | /* Third, add us in for normal shutdown. */ |
8545f7ce | 548 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
549 | } |
550 | ||
4dfc092a LP |
551 | static void service_fix_output(Service *s) { |
552 | assert(s); | |
553 | ||
554 | /* If nothing has been explicitly configured, patch default | |
555 | * output in. If input is socket/tty we avoid this however, | |
556 | * since in that case we want output to default to the same | |
557 | * place as we read input from. */ | |
558 | ||
559 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
560 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
561 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 562 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
563 | |
564 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
565 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 566 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
567 | } |
568 | ||
45f06b34 LP |
569 | static int service_setup_bus_name(Service *s) { |
570 | int r; | |
571 | ||
572 | assert(s); | |
573 | ||
574 | if (!s->bus_name) | |
575 | return 0; | |
576 | ||
577 | if (is_kdbus_available()) { | |
578 | const char *n; | |
579 | ||
580 | n = strjoina(s->bus_name, ".busname"); | |
581 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, n, NULL, true); | |
582 | if (r < 0) | |
583 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency to .busname unit: %m"); | |
584 | ||
585 | } else { | |
586 | /* If kdbus is not available, we know the dbus socket is required, hence pull it in, and require it */ | |
587 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true); | |
588 | if (r < 0) | |
589 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
590 | } | |
591 | ||
592 | /* Regardless if kdbus is used or not, we always want to be ordered against dbus.socket if both are in the transaction. */ | |
593 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, NULL, true); | |
594 | if (r < 0) | |
92bed462 | 595 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
596 | |
597 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
598 | if (r == -EEXIST) | |
599 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
600 | if (r < 0) | |
601 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
8545f7ce LP |
606 | static int service_add_extras(Service *s) { |
607 | int r; | |
608 | ||
609 | assert(s); | |
610 | ||
611 | if (s->type == _SERVICE_TYPE_INVALID) { | |
612 | /* Figure out a type automatically */ | |
613 | if (s->bus_name) | |
614 | s->type = SERVICE_DBUS; | |
615 | else if (s->exec_command[SERVICE_EXEC_START]) | |
616 | s->type = SERVICE_SIMPLE; | |
617 | else | |
618 | s->type = SERVICE_ONESHOT; | |
619 | } | |
620 | ||
621 | /* Oneshot services have disabled start timeout by default */ | |
622 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 623 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce LP |
624 | |
625 | service_fix_output(s); | |
626 | ||
627 | r = unit_patch_contexts(UNIT(s)); | |
628 | if (r < 0) | |
629 | return r; | |
630 | ||
631 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
632 | if (r < 0) | |
633 | return r; | |
634 | ||
d79200e2 | 635 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
636 | if (r < 0) |
637 | return r; | |
638 | ||
639 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
640 | s->notify_access = NOTIFY_MAIN; | |
641 | ||
642 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) | |
643 | s->notify_access = NOTIFY_MAIN; | |
644 | ||
45f06b34 LP |
645 | r = service_add_default_dependencies(s); |
646 | if (r < 0) | |
647 | return r; | |
8545f7ce | 648 | |
45f06b34 LP |
649 | r = service_setup_bus_name(s); |
650 | if (r < 0) | |
651 | return r; | |
8545f7ce LP |
652 | |
653 | return 0; | |
654 | } | |
655 | ||
e537352b | 656 | static int service_load(Unit *u) { |
e537352b | 657 | Service *s = SERVICE(u); |
8bb2d17d | 658 | int r; |
e537352b LP |
659 | |
660 | assert(s); | |
1e2e8133 | 661 | |
5cb5a6ff | 662 | /* Load a .service file */ |
c2756a68 LP |
663 | r = unit_load_fragment(u); |
664 | if (r < 0) | |
5cb5a6ff LP |
665 | return r; |
666 | ||
23a177ef | 667 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 668 | if (u->load_state == UNIT_STUB) |
23a177ef | 669 | return -ENOENT; |
034c6ed7 | 670 | |
23a177ef | 671 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 672 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
673 | |
674 | /* We were able to load something, then let's add in | |
675 | * the dropin directories. */ | |
676 | r = unit_load_dropin(u); | |
677 | if (r < 0) | |
678 | return r; | |
679 | ||
8545f7ce LP |
680 | /* This is a new unit? Then let's add in some |
681 | * extras */ | |
682 | r = service_add_extras(s); | |
598459ce LP |
683 | if (r < 0) |
684 | return r; | |
8e274523 LP |
685 | } |
686 | ||
243b1432 | 687 | return service_verify(s); |
034c6ed7 LP |
688 | } |
689 | ||
87f0e418 | 690 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 691 | ServiceExecCommand c; |
87f0e418 | 692 | Service *s = SERVICE(u); |
47be870b | 693 | const char *prefix2; |
5cb5a6ff LP |
694 | |
695 | assert(s); | |
696 | ||
4c940960 | 697 | prefix = strempty(prefix); |
63c372cb | 698 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 699 | |
5cb5a6ff | 700 | fprintf(f, |
81a2b7ce | 701 | "%sService State: %s\n" |
f42806df LP |
702 | "%sResult: %s\n" |
703 | "%sReload Result: %s\n" | |
81a2b7ce | 704 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 705 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 706 | "%sRemainAfterExit: %s\n" |
3185a36b | 707 | "%sGuessMainPID: %s\n" |
c952c6ec | 708 | "%sType: %s\n" |
2cf3143a | 709 | "%sRestart: %s\n" |
308d72dc LP |
710 | "%sNotifyAccess: %s\n" |
711 | "%sNotifyState: %s\n", | |
81a2b7ce | 712 | prefix, service_state_to_string(s->state), |
f42806df LP |
713 | prefix, service_result_to_string(s->result), |
714 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 715 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 716 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 717 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 718 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 719 | prefix, service_type_to_string(s->type), |
2cf3143a | 720 | prefix, service_restart_to_string(s->restart), |
308d72dc LP |
721 | prefix, notify_access_to_string(s->notify_access), |
722 | prefix, notify_state_to_string(s->notify_state)); | |
5cb5a6ff | 723 | |
70123e68 LP |
724 | if (s->control_pid > 0) |
725 | fprintf(f, | |
ccd06097 ZJS |
726 | "%sControl PID: "PID_FMT"\n", |
727 | prefix, s->control_pid); | |
70123e68 LP |
728 | |
729 | if (s->main_pid > 0) | |
730 | fprintf(f, | |
ccd06097 | 731 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
732 | "%sMain PID Known: %s\n" |
733 | "%sMain PID Alien: %s\n", | |
ccd06097 | 734 | prefix, s->main_pid, |
6dfa5494 LP |
735 | prefix, yes_no(s->main_pid_known), |
736 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 737 | |
034c6ed7 LP |
738 | if (s->pid_file) |
739 | fprintf(f, | |
740 | "%sPIDFile: %s\n", | |
741 | prefix, s->pid_file); | |
742 | ||
05e343b7 LP |
743 | if (s->bus_name) |
744 | fprintf(f, | |
745 | "%sBusName: %s\n" | |
746 | "%sBus Name Good: %s\n", | |
747 | prefix, s->bus_name, | |
748 | prefix, yes_no(s->bus_name_good)); | |
749 | ||
4819ff03 | 750 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
751 | exec_context_dump(&s->exec_context, f, prefix); |
752 | ||
e537352b | 753 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 754 | |
44d8db9e LP |
755 | if (!s->exec_command[c]) |
756 | continue; | |
757 | ||
40d50879 | 758 | fprintf(f, "%s-> %s:\n", |
94f04347 | 759 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
760 | |
761 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 762 | } |
44d8db9e | 763 | |
8c47c732 LP |
764 | if (s->status_text) |
765 | fprintf(f, "%sStatus Text: %s\n", | |
766 | prefix, s->status_text); | |
a354329f | 767 | |
ece174c5 | 768 | if (s->n_fd_store_max > 0) |
a354329f LP |
769 | fprintf(f, |
770 | "%sFile Descriptor Store Max: %u\n" | |
771 | "%sFile Descriptor Store Current: %u\n", | |
772 | prefix, s->n_fd_store_max, | |
773 | prefix, s->n_fd_store); | |
5cb5a6ff LP |
774 | } |
775 | ||
c5419d42 | 776 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 777 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 778 | int r; |
5925dd3c | 779 | pid_t pid; |
034c6ed7 LP |
780 | |
781 | assert(s); | |
782 | ||
034c6ed7 | 783 | if (!s->pid_file) |
13230d5d | 784 | return -ENOENT; |
034c6ed7 | 785 | |
117dcc57 ZJS |
786 | r = read_one_line_file(s->pid_file, &k); |
787 | if (r < 0) { | |
c5419d42 | 788 | if (may_warn) |
f2341e0a | 789 | 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 | 790 | return r; |
5375410b | 791 | } |
034c6ed7 | 792 | |
5925dd3c | 793 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
794 | if (r < 0) { |
795 | if (may_warn) | |
f2341e0a | 796 | log_unit_info_errno(UNIT(s), r, "Failed to read PID from file %s: %m", s->pid_file); |
5925dd3c | 797 | return r; |
bc41f93e | 798 | } |
406eaf93 | 799 | |
9f5650ae | 800 | if (!pid_is_alive(pid)) { |
c5419d42 | 801 | if (may_warn) |
f2341e0a | 802 | 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 |
803 | return -ESRCH; |
804 | } | |
805 | ||
db01f8b3 MS |
806 | if (s->main_pid_known) { |
807 | if (pid == s->main_pid) | |
808 | return 0; | |
809 | ||
f2341e0a | 810 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 811 | |
db01f8b3 MS |
812 | service_unwatch_main_pid(s); |
813 | s->main_pid_known = false; | |
3a111838 | 814 | } else |
f2341e0a | 815 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 816 | |
117dcc57 ZJS |
817 | r = service_set_main_pid(s, pid); |
818 | if (r < 0) | |
16f6025e LP |
819 | return r; |
820 | ||
117dcc57 | 821 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 822 | if (r < 0) { |
5925dd3c | 823 | /* FIXME: we need to do something here */ |
f2341e0a | 824 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); |
5925dd3c | 825 | return r; |
bc41f93e | 826 | } |
034c6ed7 LP |
827 | |
828 | return 0; | |
829 | } | |
830 | ||
783e05d6 | 831 | static void service_search_main_pid(Service *s) { |
efdb0237 | 832 | pid_t pid = 0; |
4fbf50b3 LP |
833 | int r; |
834 | ||
835 | assert(s); | |
836 | ||
3185a36b LP |
837 | /* If we know it anyway, don't ever fallback to unreliable |
838 | * heuristics */ | |
4fbf50b3 | 839 | if (s->main_pid_known) |
783e05d6 | 840 | return; |
4fbf50b3 | 841 | |
3185a36b | 842 | if (!s->guess_main_pid) |
783e05d6 | 843 | return; |
3185a36b | 844 | |
4fbf50b3 LP |
845 | assert(s->main_pid <= 0); |
846 | ||
783e05d6 ZJS |
847 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
848 | return; | |
4fbf50b3 | 849 | |
f2341e0a | 850 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
851 | if (service_set_main_pid(s, pid) < 0) |
852 | return; | |
4fbf50b3 | 853 | |
117dcc57 | 854 | r = unit_watch_pid(UNIT(s), pid); |
783e05d6 | 855 | if (r < 0) |
4fbf50b3 | 856 | /* FIXME: we need to do something here */ |
f2341e0a | 857 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
858 | } |
859 | ||
034c6ed7 LP |
860 | static void service_set_state(Service *s, ServiceState state) { |
861 | ServiceState old_state; | |
e056b01d | 862 | const UnitActiveState *table; |
842129f5 | 863 | |
5cb5a6ff LP |
864 | assert(s); |
865 | ||
e056b01d LP |
866 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
867 | ||
034c6ed7 | 868 | old_state = s->state; |
5cb5a6ff | 869 | s->state = state; |
034c6ed7 | 870 | |
3a111838 MS |
871 | service_unwatch_pid_file(s); |
872 | ||
842129f5 LP |
873 | if (!IN_SET(state, |
874 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
36c16a7c | 875 | SERVICE_RUNNING, |
842129f5 | 876 | SERVICE_RELOAD, |
57614eb1 | 877 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 LP |
878 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
879 | SERVICE_AUTO_RESTART)) | |
718db961 | 880 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 881 | |
842129f5 LP |
882 | if (!IN_SET(state, |
883 | SERVICE_START, SERVICE_START_POST, | |
884 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 | 885 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 886 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 887 | service_unwatch_main_pid(s); |
867b3b7d LP |
888 | s->main_command = NULL; |
889 | } | |
034c6ed7 | 890 | |
842129f5 LP |
891 | if (!IN_SET(state, |
892 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
893 | SERVICE_RELOAD, | |
57614eb1 | 894 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 895 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 896 | service_unwatch_control_pid(s); |
034c6ed7 | 897 | s->control_command = NULL; |
a16e1123 | 898 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 899 | } |
034c6ed7 | 900 | |
a911bb9a LP |
901 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
902 | unit_unwatch_all_pids(UNIT(s)); | |
903 | ||
842129f5 LP |
904 | if (!IN_SET(state, |
905 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
906 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 LP |
907 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
908 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
5cc3985e | 909 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
910 | service_close_socket_fd(s); |
911 | ||
7596e9e1 | 912 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
913 | service_stop_watchdog(s); |
914 | ||
f6023656 LP |
915 | /* For the inactive states unit_notify() will trim the cgroup, |
916 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 917 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 918 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 919 | |
9cd86184 OB |
920 | /* For remain_after_exit services, let's see if we can "release" the |
921 | * hold on the console, since unit_notify() only does that in case of | |
922 | * change of state */ | |
f49650ce LP |
923 | if (state == SERVICE_EXITED && |
924 | s->remain_after_exit && | |
9cd86184 | 925 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
926 | |
927 | ExecContext *ec; | |
928 | ||
929 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
930 | if (ec && exec_context_may_touch_console(ec)) { |
931 | Manager *m = UNIT(s)->manager; | |
932 | ||
313cefa1 | 933 | m->n_on_console--; |
9cd86184 OB |
934 | if (m->n_on_console == 0) |
935 | /* unset no_console_output flag, since the console is free */ | |
936 | m->no_console_output = false; | |
937 | } | |
938 | } | |
939 | ||
e537352b | 940 | if (old_state != state) |
f2341e0a | 941 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 942 | |
e056b01d | 943 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
034c6ed7 LP |
944 | } |
945 | ||
36c16a7c LP |
946 | static usec_t service_coldplug_timeout(Service *s) { |
947 | assert(s); | |
948 | ||
949 | switch (s->deserialized_state) { | |
950 | ||
951 | case SERVICE_START_PRE: | |
952 | case SERVICE_START: | |
953 | case SERVICE_START_POST: | |
954 | case SERVICE_RELOAD: | |
955 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
956 | ||
957 | case SERVICE_RUNNING: | |
958 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
959 | ||
960 | case SERVICE_STOP: | |
961 | case SERVICE_STOP_SIGABRT: | |
962 | case SERVICE_STOP_SIGTERM: | |
963 | case SERVICE_STOP_SIGKILL: | |
964 | case SERVICE_STOP_POST: | |
965 | case SERVICE_FINAL_SIGTERM: | |
966 | case SERVICE_FINAL_SIGKILL: | |
967 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
968 | ||
969 | case SERVICE_AUTO_RESTART: | |
970 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
971 | ||
972 | default: | |
973 | return USEC_INFINITY; | |
974 | } | |
975 | } | |
976 | ||
be847e82 | 977 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
978 | Service *s = SERVICE(u); |
979 | int r; | |
980 | ||
981 | assert(s); | |
982 | assert(s->state == SERVICE_DEAD); | |
983 | ||
930d2838 LP |
984 | if (s->deserialized_state == s->state) |
985 | return 0; | |
6c12b52e | 986 | |
36c16a7c LP |
987 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
988 | if (r < 0) | |
989 | return r; | |
a911bb9a | 990 | |
930d2838 LP |
991 | if (s->main_pid > 0 && |
992 | pid_is_unwaited(s->main_pid) && | |
993 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
994 | IN_SET(s->deserialized_state, | |
995 | SERVICE_START, SERVICE_START_POST, | |
996 | SERVICE_RUNNING, SERVICE_RELOAD, | |
997 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
998 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
999 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1000 | if (r < 0) | |
1001 | return r; | |
1002 | } | |
bb242b7b | 1003 | |
930d2838 LP |
1004 | if (s->control_pid > 0 && |
1005 | pid_is_unwaited(s->control_pid) && | |
1006 | IN_SET(s->deserialized_state, | |
1007 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1008 | SERVICE_RELOAD, | |
1009 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1010 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1011 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1012 | if (r < 0) | |
1013 | return r; | |
a16e1123 | 1014 | } |
92c1622e | 1015 | |
930d2838 LP |
1016 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1017 | unit_watch_all_pids(UNIT(s)); | |
1018 | ||
1019 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) | |
1020 | service_start_watchdog(s); | |
1021 | ||
1022 | service_set_state(s, s->deserialized_state); | |
a16e1123 LP |
1023 | return 0; |
1024 | } | |
1025 | ||
8dd4c05b LP |
1026 | static int service_collect_fds(Service *s, int **fds, char ***fd_names) { |
1027 | _cleanup_strv_free_ char **rfd_names = NULL; | |
a354329f | 1028 | _cleanup_free_ int *rfds = NULL; |
8dd4c05b | 1029 | int rn_fds = 0, r; |
44d8db9e LP |
1030 | |
1031 | assert(s); | |
1032 | assert(fds); | |
8dd4c05b | 1033 | assert(fd_names); |
44d8db9e | 1034 | |
8dd4c05b | 1035 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1036 | |
8dd4c05b | 1037 | /* Pass the per-connection socket */ |
57020a3a | 1038 | |
8dd4c05b LP |
1039 | rfds = new(int, 1); |
1040 | if (!rfds) | |
1041 | return -ENOMEM; | |
1042 | rfds[0] = s->socket_fd; | |
57020a3a | 1043 | |
8dd4c05b LP |
1044 | rfd_names = strv_new("connection", NULL); |
1045 | if (!rfd_names) | |
1046 | return -ENOMEM; | |
44d8db9e | 1047 | |
8dd4c05b LP |
1048 | rn_fds = 1; |
1049 | } else { | |
1050 | Iterator i; | |
1051 | Unit *u; | |
44d8db9e | 1052 | |
8dd4c05b | 1053 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1054 | |
8dd4c05b LP |
1055 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
1056 | _cleanup_free_ int *cfds = NULL; | |
1057 | Socket *sock; | |
1058 | int cn_fds; | |
44d8db9e | 1059 | |
8dd4c05b LP |
1060 | if (u->type != UNIT_SOCKET) |
1061 | continue; | |
44d8db9e | 1062 | |
8dd4c05b | 1063 | sock = SOCKET(u); |
a354329f | 1064 | |
8dd4c05b LP |
1065 | cn_fds = socket_collect_fds(sock, &cfds); |
1066 | if (cn_fds < 0) | |
1067 | return cn_fds; | |
44d8db9e | 1068 | |
8dd4c05b LP |
1069 | if (cn_fds <= 0) |
1070 | continue; | |
79c7626d | 1071 | |
8dd4c05b LP |
1072 | if (!rfds) { |
1073 | rfds = cfds; | |
1074 | rn_fds = cn_fds; | |
1075 | ||
1076 | cfds = NULL; | |
1077 | } else { | |
1078 | int *t; | |
1079 | ||
1080 | t = realloc(rfds, (rn_fds + cn_fds) * sizeof(int)); | |
1081 | if (!t) | |
1082 | return -ENOMEM; | |
1083 | ||
1084 | memcpy(t + rn_fds, cfds, cn_fds * sizeof(int)); | |
1085 | ||
1086 | rfds = t; | |
1087 | rn_fds += cn_fds; | |
1088 | } | |
1089 | ||
1090 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1091 | if (r < 0) | |
1092 | return r; | |
44d8db9e LP |
1093 | } |
1094 | } | |
1095 | ||
a354329f LP |
1096 | if (s->n_fd_store > 0) { |
1097 | ServiceFDStore *fs; | |
8dd4c05b | 1098 | char **nl; |
a354329f LP |
1099 | int *t; |
1100 | ||
1101 | t = realloc(rfds, (rn_fds + s->n_fd_store) * sizeof(int)); | |
1102 | if (!t) | |
1103 | return -ENOMEM; | |
1104 | ||
1105 | rfds = t; | |
8dd4c05b LP |
1106 | |
1107 | nl = realloc(rfd_names, (rn_fds + s->n_fd_store + 1) * sizeof(char*)); | |
1108 | if (!nl) | |
1109 | return -ENOMEM; | |
1110 | ||
1111 | rfd_names = nl; | |
1112 | ||
1113 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
1114 | rfds[rn_fds] = fs->fd; | |
1115 | rfd_names[rn_fds] = strdup(strempty(fs->fdname)); | |
1116 | if (!rfd_names[rn_fds]) | |
1117 | return -ENOMEM; | |
1118 | ||
1119 | rn_fds++; | |
1120 | } | |
1121 | ||
1122 | rfd_names[rn_fds] = NULL; | |
a354329f LP |
1123 | } |
1124 | ||
44d8db9e | 1125 | *fds = rfds; |
8dd4c05b | 1126 | *fd_names = rfd_names; |
3e33402a | 1127 | |
a354329f | 1128 | rfds = NULL; |
8dd4c05b | 1129 | rfd_names = NULL; |
79c7626d LP |
1130 | |
1131 | return rn_fds; | |
44d8db9e LP |
1132 | } |
1133 | ||
81a2b7ce LP |
1134 | static int service_spawn( |
1135 | Service *s, | |
1136 | ExecCommand *c, | |
21b2ce39 | 1137 | usec_t timeout, |
81a2b7ce LP |
1138 | bool pass_fds, |
1139 | bool apply_permissions, | |
1140 | bool apply_chroot, | |
1e3ad081 | 1141 | bool apply_tty_stdin, |
ecedd90f | 1142 | bool is_control, |
81a2b7ce LP |
1143 | pid_t *_pid) { |
1144 | ||
8dd4c05b | 1145 | _cleanup_strv_free_ char **argv = NULL, **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
8dd4c05b LP |
1146 | _cleanup_free_ int *fds = NULL; |
1147 | unsigned n_fds = 0, n_env = 0; | |
4ad49000 | 1148 | const char *path; |
8dd4c05b LP |
1149 | pid_t pid; |
1150 | ||
9fa95f85 | 1151 | ExecParameters exec_params = { |
a34ceba6 LP |
1152 | .apply_permissions = apply_permissions, |
1153 | .apply_chroot = apply_chroot, | |
1154 | .apply_tty_stdin = apply_tty_stdin, | |
a34ceba6 LP |
1155 | .stdin_fd = -1, |
1156 | .stdout_fd = -1, | |
1157 | .stderr_fd = -1, | |
9fa95f85 | 1158 | }; |
034c6ed7 | 1159 | |
8dd4c05b LP |
1160 | int r; |
1161 | ||
034c6ed7 LP |
1162 | assert(s); |
1163 | assert(c); | |
1164 | assert(_pid); | |
1165 | ||
5ad096b3 LP |
1166 | (void) unit_realize_cgroup(UNIT(s)); |
1167 | if (s->reset_cpu_usage) { | |
1168 | (void) unit_reset_cpu_usage(UNIT(s)); | |
1169 | s->reset_cpu_usage = false; | |
1170 | } | |
4ad49000 | 1171 | |
613b411c LP |
1172 | r = unit_setup_exec_runtime(UNIT(s)); |
1173 | if (r < 0) | |
36c16a7c | 1174 | return r; |
613b411c | 1175 | |
6cf6bbc2 LP |
1176 | if (pass_fds || |
1177 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1178 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1179 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1180 | ||
8dd4c05b LP |
1181 | r = service_collect_fds(s, &fds, &fd_names); |
1182 | if (r < 0) | |
36c16a7c | 1183 | return r; |
6cf6bbc2 | 1184 | |
8dd4c05b | 1185 | n_fds = r; |
4f2d528d | 1186 | } |
44d8db9e | 1187 | |
36c16a7c LP |
1188 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1189 | if (r < 0) | |
1190 | return r; | |
034c6ed7 | 1191 | |
19f6d710 LP |
1192 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1193 | if (r < 0) | |
36c16a7c | 1194 | return r; |
9e2f7c11 | 1195 | |
3b1c5241 | 1196 | our_env = new0(char*, 6); |
36c16a7c LP |
1197 | if (!our_env) |
1198 | return -ENOMEM; | |
c952c6ec | 1199 | |
a158dbf1 | 1200 | if (is_control ? s->notify_access == NOTIFY_ALL : s->notify_access != NOTIFY_NONE) |
36c16a7c LP |
1201 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1202 | return -ENOMEM; | |
c952c6ec | 1203 | |
2105e76a | 1204 | if (s->main_pid > 0) |
36c16a7c LP |
1205 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1206 | return -ENOMEM; | |
2105e76a | 1207 | |
463d0d15 | 1208 | if (!MANAGER_IS_SYSTEM(UNIT(s)->manager)) |
36c16a7c LP |
1209 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) |
1210 | return -ENOMEM; | |
97ae63e2 | 1211 | |
8dd4c05b | 1212 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1213 | union sockaddr_union sa; |
1214 | socklen_t salen = sizeof(sa); | |
1215 | ||
1216 | r = getpeername(s->socket_fd, &sa.sa, &salen); | |
36c16a7c LP |
1217 | if (r < 0) |
1218 | return -errno; | |
3b1c5241 SL |
1219 | |
1220 | if (IN_SET(sa.sa.sa_family, AF_INET, AF_INET6)) { | |
1221 | _cleanup_free_ char *addr = NULL; | |
1222 | char *t; | |
1223 | int port; | |
1224 | ||
1225 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1226 | if (r < 0) | |
36c16a7c | 1227 | return r; |
3b1c5241 SL |
1228 | |
1229 | t = strappend("REMOTE_ADDR=", addr); | |
36c16a7c LP |
1230 | if (!t) |
1231 | return -ENOMEM; | |
3b1c5241 SL |
1232 | our_env[n_env++] = t; |
1233 | ||
1234 | port = sockaddr_port(&sa.sa); | |
36c16a7c LP |
1235 | if (port < 0) |
1236 | return port; | |
3b1c5241 | 1237 | |
36c16a7c LP |
1238 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1239 | return -ENOMEM; | |
3b1c5241 SL |
1240 | our_env[n_env++] = t; |
1241 | } | |
1242 | } | |
1243 | ||
97ae63e2 | 1244 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); |
36c16a7c LP |
1245 | if (!final_env) |
1246 | return -ENOMEM; | |
c952c6ec | 1247 | |
4ad49000 | 1248 | if (is_control && UNIT(s)->cgroup_path) { |
63c372cb | 1249 | path = strjoina(UNIT(s)->cgroup_path, "/control"); |
ac5b0c13 | 1250 | (void) cg_create(SYSTEMD_CGROUP_CONTROLLER, path); |
4ad49000 LP |
1251 | } else |
1252 | path = UNIT(s)->cgroup_path; | |
1253 | ||
9fa95f85 DM |
1254 | exec_params.argv = argv; |
1255 | exec_params.fds = fds; | |
8dd4c05b | 1256 | exec_params.fd_names = fd_names; |
9fa95f85 DM |
1257 | exec_params.n_fds = n_fds; |
1258 | exec_params.environment = final_env; | |
1259 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
1260 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
1261 | exec_params.cgroup_path = path; | |
a931ad47 | 1262 | exec_params.cgroup_delegate = s->cgroup_context.delegate; |
9fa95f85 | 1263 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); |
9fa95f85 | 1264 | exec_params.watchdog_usec = s->watchdog_usec; |
a34ceba6 | 1265 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1266 | if (s->type == SERVICE_IDLE) |
1267 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1268 | exec_params.stdin_fd = s->stdin_fd; |
1269 | exec_params.stdout_fd = s->stdout_fd; | |
1270 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1271 | |
f2341e0a LP |
1272 | r = exec_spawn(UNIT(s), |
1273 | c, | |
9e2f7c11 | 1274 | &s->exec_context, |
9fa95f85 | 1275 | &exec_params, |
613b411c | 1276 | s->exec_runtime, |
9e2f7c11 | 1277 | &pid); |
9e2f7c11 | 1278 | if (r < 0) |
36c16a7c | 1279 | return r; |
034c6ed7 | 1280 | |
117dcc57 ZJS |
1281 | r = unit_watch_pid(UNIT(s), pid); |
1282 | if (r < 0) | |
034c6ed7 | 1283 | /* FIXME: we need to do something here */ |
36c16a7c | 1284 | return r; |
034c6ed7 LP |
1285 | |
1286 | *_pid = pid; | |
1287 | ||
5cb5a6ff | 1288 | return 0; |
034c6ed7 LP |
1289 | } |
1290 | ||
80876c20 LP |
1291 | static int main_pid_good(Service *s) { |
1292 | assert(s); | |
1293 | ||
1294 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1295 | * don't know */ | |
1296 | ||
fc08079e | 1297 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1298 | * still valid */ |
6dfa5494 LP |
1299 | if (s->main_pid_known) { |
1300 | ||
1301 | /* If it's an alien child let's check if it is still | |
1302 | * alive ... */ | |
62220cf7 | 1303 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1304 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1305 | |
1306 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1307 | * which we really should wait for to collect exit | |
1308 | * status and code */ | |
80876c20 | 1309 | return s->main_pid > 0; |
6dfa5494 | 1310 | } |
80876c20 LP |
1311 | |
1312 | /* We don't know the pid */ | |
1313 | return -EAGAIN; | |
1314 | } | |
1315 | ||
44a6b1b6 | 1316 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1317 | assert(s); |
1318 | ||
1319 | return s->control_pid > 0; | |
1320 | } | |
1321 | ||
1322 | static int cgroup_good(Service *s) { | |
1323 | int r; | |
1324 | ||
1325 | assert(s); | |
1326 | ||
4ad49000 LP |
1327 | if (!UNIT(s)->cgroup_path) |
1328 | return 0; | |
1329 | ||
6f883237 | 1330 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1331 | if (r < 0) |
80876c20 LP |
1332 | return r; |
1333 | ||
1334 | return !r; | |
1335 | } | |
1336 | ||
a509f0e6 LP |
1337 | static bool service_shall_restart(Service *s) { |
1338 | assert(s); | |
1339 | ||
1340 | /* Don't restart after manual stops */ | |
1341 | if (s->forbid_restart) | |
1342 | return false; | |
1343 | ||
1344 | /* Never restart if this is configured as special exception */ | |
1345 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1346 | return false; | |
1347 | ||
1348 | /* Restart if the exit code/status are configured as restart triggers */ | |
1349 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1350 | return true; | |
1351 | ||
1352 | switch (s->restart) { | |
1353 | ||
1354 | case SERVICE_RESTART_NO: | |
1355 | return false; | |
1356 | ||
1357 | case SERVICE_RESTART_ALWAYS: | |
1358 | return true; | |
1359 | ||
1360 | case SERVICE_RESTART_ON_SUCCESS: | |
1361 | return s->result == SERVICE_SUCCESS; | |
1362 | ||
1363 | case SERVICE_RESTART_ON_FAILURE: | |
1364 | return s->result != SERVICE_SUCCESS; | |
1365 | ||
1366 | case SERVICE_RESTART_ON_ABNORMAL: | |
1367 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1368 | ||
1369 | case SERVICE_RESTART_ON_WATCHDOG: | |
1370 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1371 | ||
1372 | case SERVICE_RESTART_ON_ABORT: | |
1373 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1374 | ||
1375 | default: | |
1376 | assert_not_reached("unknown restart setting"); | |
1377 | } | |
1378 | } | |
1379 | ||
f42806df | 1380 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1381 | int r; |
1382 | assert(s); | |
1383 | ||
f42806df LP |
1384 | if (f != SERVICE_SUCCESS) |
1385 | s->result = f; | |
034c6ed7 | 1386 | |
0c7f15b3 MS |
1387 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1388 | ||
2928b0a8 | 1389 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1390 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
6bf0f408 | 1391 | failure_action(UNIT(s)->manager, s->failure_action, UNIT(s)->reboot_arg); |
2928b0a8 | 1392 | } |
93ae25e6 | 1393 | |
a509f0e6 | 1394 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1395 | |
36c16a7c | 1396 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
f42806df | 1397 | if (r < 0) |
034c6ed7 LP |
1398 | goto fail; |
1399 | ||
1400 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1401 | } |
034c6ed7 | 1402 | |
f2341e0a | 1403 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1404 | s->forbid_restart = false; |
1405 | ||
e66cf1a3 | 1406 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1407 | exec_runtime_destroy(s->exec_runtime); |
1408 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1409 | |
e66cf1a3 LP |
1410 | /* Also, remove the runtime directory in */ |
1411 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); | |
1412 | ||
9285c9ff LN |
1413 | /* Try to delete the pid file. At this point it will be |
1414 | * out-of-date, and some software might be confused by it, so | |
1415 | * let's remove it. */ | |
1416 | if (s->pid_file) | |
fabab190 | 1417 | (void) unlink(s->pid_file); |
9285c9ff | 1418 | |
034c6ed7 LP |
1419 | return; |
1420 | ||
1421 | fail: | |
f2341e0a | 1422 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1423 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1424 | } |
1425 | ||
f42806df | 1426 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1427 | int r; |
1428 | assert(s); | |
1429 | ||
f42806df LP |
1430 | if (f != SERVICE_SUCCESS) |
1431 | s->result = f; | |
034c6ed7 | 1432 | |
5e94833f | 1433 | service_unwatch_control_pid(s); |
a911bb9a | 1434 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1435 | |
117dcc57 ZJS |
1436 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1437 | if (s->control_command) { | |
867b3b7d LP |
1438 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1439 | ||
ecedd90f LP |
1440 | r = service_spawn(s, |
1441 | s->control_command, | |
21b2ce39 | 1442 | s->timeout_stop_usec, |
ecedd90f LP |
1443 | false, |
1444 | !s->permissions_start_only, | |
1445 | !s->root_directory_start_only, | |
1446 | true, | |
ecedd90f LP |
1447 | true, |
1448 | &s->control_pid); | |
1449 | if (r < 0) | |
034c6ed7 LP |
1450 | goto fail; |
1451 | ||
80876c20 LP |
1452 | service_set_state(s, SERVICE_STOP_POST); |
1453 | } else | |
ac84d1fb | 1454 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1455 | |
1456 | return; | |
1457 | ||
1458 | fail: | |
f2341e0a | 1459 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1460 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1461 | } |
1462 | ||
4940c0b0 LP |
1463 | static int state_to_kill_operation(ServiceState state) { |
1464 | switch (state) { | |
1465 | ||
1466 | case SERVICE_STOP_SIGABRT: | |
1467 | return KILL_ABORT; | |
1468 | ||
1469 | case SERVICE_STOP_SIGTERM: | |
1470 | case SERVICE_FINAL_SIGTERM: | |
1471 | return KILL_TERMINATE; | |
1472 | ||
1473 | case SERVICE_STOP_SIGKILL: | |
1474 | case SERVICE_FINAL_SIGKILL: | |
1475 | return KILL_KILL; | |
1476 | ||
1477 | default: | |
1478 | return _KILL_OPERATION_INVALID; | |
1479 | } | |
1480 | } | |
1481 | ||
f42806df | 1482 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1483 | int r; |
034c6ed7 LP |
1484 | |
1485 | assert(s); | |
1486 | ||
f42806df LP |
1487 | if (f != SERVICE_SUCCESS) |
1488 | s->result = f; | |
034c6ed7 | 1489 | |
a911bb9a LP |
1490 | unit_watch_all_pids(UNIT(s)); |
1491 | ||
cd2086fe LP |
1492 | r = unit_kill_context( |
1493 | UNIT(s), | |
1494 | &s->kill_context, | |
4940c0b0 | 1495 | state_to_kill_operation(state), |
cd2086fe LP |
1496 | s->main_pid, |
1497 | s->control_pid, | |
1498 | s->main_pid_alien); | |
ac84d1fb | 1499 | |
cd2086fe LP |
1500 | if (r < 0) |
1501 | goto fail; | |
034c6ed7 | 1502 | |
cd2086fe | 1503 | if (r > 0) { |
36c16a7c LP |
1504 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
1505 | if (r < 0) | |
1506 | goto fail; | |
d6ea93e3 | 1507 | |
80876c20 | 1508 | service_set_state(s, state); |
1db0db4b | 1509 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1510 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1511 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1512 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1513 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1514 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1515 | else |
f42806df | 1516 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1517 | |
1518 | return; | |
1519 | ||
1520 | fail: | |
f2341e0a | 1521 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1522 | |
a00973af | 1523 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1524 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1525 | else |
f42806df | 1526 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1527 | } |
1528 | ||
308d72dc LP |
1529 | static void service_enter_stop_by_notify(Service *s) { |
1530 | assert(s); | |
1531 | ||
1532 | unit_watch_all_pids(UNIT(s)); | |
1533 | ||
36c16a7c | 1534 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1535 | |
6041a7ee MS |
1536 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1537 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1538 | } |
1539 | ||
f42806df | 1540 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1541 | int r; |
5925dd3c | 1542 | |
034c6ed7 LP |
1543 | assert(s); |
1544 | ||
f42806df LP |
1545 | if (f != SERVICE_SUCCESS) |
1546 | s->result = f; | |
034c6ed7 | 1547 | |
5e94833f | 1548 | service_unwatch_control_pid(s); |
a911bb9a | 1549 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1550 | |
117dcc57 ZJS |
1551 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1552 | if (s->control_command) { | |
867b3b7d LP |
1553 | s->control_command_id = SERVICE_EXEC_STOP; |
1554 | ||
ecedd90f LP |
1555 | r = service_spawn(s, |
1556 | s->control_command, | |
21b2ce39 | 1557 | s->timeout_stop_usec, |
ecedd90f LP |
1558 | false, |
1559 | !s->permissions_start_only, | |
1560 | !s->root_directory_start_only, | |
1561 | false, | |
ecedd90f LP |
1562 | true, |
1563 | &s->control_pid); | |
1564 | if (r < 0) | |
034c6ed7 LP |
1565 | goto fail; |
1566 | ||
80876c20 LP |
1567 | service_set_state(s, SERVICE_STOP); |
1568 | } else | |
f42806df | 1569 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1570 | |
1571 | return; | |
1572 | ||
1573 | fail: | |
f2341e0a | 1574 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1575 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1576 | } |
1577 | ||
957c3cf9 LP |
1578 | static bool service_good(Service *s) { |
1579 | int main_pid_ok; | |
1580 | assert(s); | |
1581 | ||
1582 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1583 | return false; | |
1584 | ||
1585 | main_pid_ok = main_pid_good(s); | |
1586 | if (main_pid_ok > 0) /* It's alive */ | |
1587 | return true; | |
1588 | if (main_pid_ok == 0) /* It's dead */ | |
1589 | return false; | |
1590 | ||
1591 | /* OK, we don't know anything about the main PID, maybe | |
1592 | * because there is none. Let's check the control group | |
1593 | * instead. */ | |
1594 | ||
1595 | return cgroup_good(s) != 0; | |
1596 | } | |
1597 | ||
f42806df | 1598 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1599 | assert(s); |
1600 | ||
f42806df LP |
1601 | if (f != SERVICE_SUCCESS) |
1602 | s->result = f; | |
80876c20 | 1603 | |
089b64d5 LP |
1604 | service_unwatch_control_pid(s); |
1605 | ||
957c3cf9 | 1606 | if (service_good(s)) { |
308d72dc LP |
1607 | |
1608 | /* If there are any queued up sd_notify() | |
1609 | * notifications, process them now */ | |
1610 | if (s->notify_state == NOTIFY_RELOADING) | |
1611 | service_enter_reload_by_notify(s); | |
1612 | else if (s->notify_state == NOTIFY_STOPPING) | |
1613 | service_enter_stop_by_notify(s); | |
36c16a7c | 1614 | else { |
308d72dc | 1615 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
1616 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
1617 | } | |
308d72dc LP |
1618 | |
1619 | } else if (s->remain_after_exit) | |
80876c20 LP |
1620 | service_set_state(s, SERVICE_EXITED); |
1621 | else | |
f42806df | 1622 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1623 | } |
1624 | ||
034c6ed7 LP |
1625 | static void service_enter_start_post(Service *s) { |
1626 | int r; | |
1627 | assert(s); | |
1628 | ||
5e94833f | 1629 | service_unwatch_control_pid(s); |
842129f5 | 1630 | service_reset_watchdog(s); |
bb242b7b | 1631 | |
117dcc57 ZJS |
1632 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1633 | if (s->control_command) { | |
867b3b7d LP |
1634 | s->control_command_id = SERVICE_EXEC_START_POST; |
1635 | ||
ecedd90f LP |
1636 | r = service_spawn(s, |
1637 | s->control_command, | |
21b2ce39 | 1638 | s->timeout_start_usec, |
ecedd90f LP |
1639 | false, |
1640 | !s->permissions_start_only, | |
1641 | !s->root_directory_start_only, | |
1642 | false, | |
ecedd90f LP |
1643 | true, |
1644 | &s->control_pid); | |
1645 | if (r < 0) | |
034c6ed7 LP |
1646 | goto fail; |
1647 | ||
80876c20 LP |
1648 | service_set_state(s, SERVICE_START_POST); |
1649 | } else | |
f42806df | 1650 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1651 | |
1652 | return; | |
1653 | ||
1654 | fail: | |
f2341e0a | 1655 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1656 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1657 | } |
1658 | ||
4ad49000 LP |
1659 | static void service_kill_control_processes(Service *s) { |
1660 | char *p; | |
1661 | ||
1662 | if (!UNIT(s)->cgroup_path) | |
1663 | return; | |
1664 | ||
63c372cb | 1665 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
4ad49000 LP |
1666 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
1667 | } | |
1668 | ||
034c6ed7 | 1669 | static void service_enter_start(Service *s) { |
4ad49000 | 1670 | ExecCommand *c; |
36c16a7c | 1671 | usec_t timeout; |
034c6ed7 LP |
1672 | pid_t pid; |
1673 | int r; | |
1674 | ||
1675 | assert(s); | |
1676 | ||
41efeaec LP |
1677 | service_unwatch_control_pid(s); |
1678 | service_unwatch_main_pid(s); | |
80876c20 | 1679 | |
8f53a7b8 LP |
1680 | /* We want to ensure that nobody leaks processes from |
1681 | * START_PRE here, so let's go on a killing spree, People | |
1682 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1683 | service_kill_control_processes(s); |
8f53a7b8 | 1684 | |
867b3b7d LP |
1685 | if (s->type == SERVICE_FORKING) { |
1686 | s->control_command_id = SERVICE_EXEC_START; | |
1687 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1688 | ||
1689 | s->main_command = NULL; | |
1690 | } else { | |
1691 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1692 | s->control_command = NULL; | |
1693 | ||
1694 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1695 | } | |
34e9ba66 | 1696 | |
96fb8242 LP |
1697 | if (!c) { |
1698 | assert(s->type == SERVICE_ONESHOT); | |
1699 | service_enter_start_post(s); | |
1700 | return; | |
1701 | } | |
1702 | ||
36c16a7c LP |
1703 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
1704 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
1705 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
1706 | timeout = USEC_INFINITY; | |
1707 | else | |
1708 | timeout = s->timeout_start_usec; | |
1709 | ||
ecedd90f LP |
1710 | r = service_spawn(s, |
1711 | c, | |
36c16a7c | 1712 | timeout, |
ecedd90f LP |
1713 | true, |
1714 | true, | |
1715 | true, | |
1716 | true, | |
ecedd90f LP |
1717 | false, |
1718 | &pid); | |
1719 | if (r < 0) | |
034c6ed7 LP |
1720 | goto fail; |
1721 | ||
36c16a7c | 1722 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
1723 | /* For simple services we immediately start |
1724 | * the START_POST binaries. */ | |
1725 | ||
5925dd3c | 1726 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1727 | service_enter_start_post(s); |
1728 | ||
1729 | } else if (s->type == SERVICE_FORKING) { | |
1730 | ||
1731 | /* For forking services we wait until the start | |
1732 | * process exited. */ | |
1733 | ||
e55224ca | 1734 | s->control_pid = pid; |
80876c20 LP |
1735 | service_set_state(s, SERVICE_START); |
1736 | ||
36c16a7c | 1737 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY)) { |
7d55e835 | 1738 | |
34e9ba66 | 1739 | /* For oneshot services we wait until the start |
7d55e835 LP |
1740 | * process exited, too, but it is our main process. */ |
1741 | ||
05e343b7 | 1742 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1743 | * but wait for the bus name to appear on the |
1744 | * bus. Notify services are similar. */ | |
05e343b7 | 1745 | |
5925dd3c | 1746 | service_set_main_pid(s, pid); |
80876c20 | 1747 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1748 | } else |
1749 | assert_not_reached("Unknown service type"); | |
1750 | ||
1751 | return; | |
1752 | ||
1753 | fail: | |
f2341e0a | 1754 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
f42806df | 1755 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1756 | } |
1757 | ||
1758 | static void service_enter_start_pre(Service *s) { | |
1759 | int r; | |
1760 | ||
1761 | assert(s); | |
1762 | ||
5e94833f LP |
1763 | service_unwatch_control_pid(s); |
1764 | ||
117dcc57 ZJS |
1765 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1766 | if (s->control_command) { | |
8f53a7b8 LP |
1767 | /* Before we start anything, let's clear up what might |
1768 | * be left from previous runs. */ | |
4ad49000 | 1769 | service_kill_control_processes(s); |
8f53a7b8 | 1770 | |
867b3b7d LP |
1771 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1772 | ||
ecedd90f LP |
1773 | r = service_spawn(s, |
1774 | s->control_command, | |
21b2ce39 | 1775 | s->timeout_start_usec, |
ecedd90f LP |
1776 | false, |
1777 | !s->permissions_start_only, | |
1778 | !s->root_directory_start_only, | |
1779 | true, | |
ecedd90f LP |
1780 | true, |
1781 | &s->control_pid); | |
1782 | if (r < 0) | |
034c6ed7 LP |
1783 | goto fail; |
1784 | ||
80876c20 LP |
1785 | service_set_state(s, SERVICE_START_PRE); |
1786 | } else | |
034c6ed7 LP |
1787 | service_enter_start(s); |
1788 | ||
1789 | return; | |
1790 | ||
1791 | fail: | |
f2341e0a | 1792 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1793 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1794 | } |
1795 | ||
1796 | static void service_enter_restart(Service *s) { | |
4afd3348 | 1797 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1798 | int r; |
398ef8ba | 1799 | |
034c6ed7 LP |
1800 | assert(s); |
1801 | ||
a8bb2e65 LP |
1802 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1803 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1804 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1805 | |
36c16a7c | 1806 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 1807 | if (r < 0) |
2edfa366 | 1808 | goto fail; |
feae8adb DW |
1809 | |
1810 | return; | |
2edfa366 LP |
1811 | } |
1812 | ||
48bb5876 DW |
1813 | /* Any units that are bound to this service must also be |
1814 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1815 | * JOB_START) here so that those dependency jobs will be added | |
1816 | * as well. */ | |
4bd29fe5 | 1817 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, &error, NULL); |
48bb5876 | 1818 | if (r < 0) |
034c6ed7 LP |
1819 | goto fail; |
1820 | ||
a8bb2e65 LP |
1821 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1822 | * it will be canceled as part of the service_stop() call that | |
1823 | * is executed as part of JOB_RESTART. */ | |
1824 | ||
f2341e0a | 1825 | log_unit_debug(UNIT(s), "Scheduled restart job."); |
034c6ed7 LP |
1826 | return; |
1827 | ||
1828 | fail: | |
f2341e0a | 1829 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1830 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1831 | } |
1832 | ||
308d72dc LP |
1833 | static void service_enter_reload_by_notify(Service *s) { |
1834 | assert(s); | |
1835 | ||
36c16a7c | 1836 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc LP |
1837 | service_set_state(s, SERVICE_RELOAD); |
1838 | } | |
1839 | ||
034c6ed7 LP |
1840 | static void service_enter_reload(Service *s) { |
1841 | int r; | |
1842 | ||
1843 | assert(s); | |
1844 | ||
5e94833f | 1845 | service_unwatch_control_pid(s); |
95c906ae | 1846 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 1847 | |
117dcc57 ZJS |
1848 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1849 | if (s->control_command) { | |
867b3b7d LP |
1850 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1851 | ||
ecedd90f LP |
1852 | r = service_spawn(s, |
1853 | s->control_command, | |
21b2ce39 | 1854 | s->timeout_start_usec, |
ecedd90f LP |
1855 | false, |
1856 | !s->permissions_start_only, | |
1857 | !s->root_directory_start_only, | |
1858 | false, | |
ecedd90f LP |
1859 | true, |
1860 | &s->control_pid); | |
1861 | if (r < 0) | |
034c6ed7 LP |
1862 | goto fail; |
1863 | ||
80876c20 LP |
1864 | service_set_state(s, SERVICE_RELOAD); |
1865 | } else | |
f42806df | 1866 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1867 | |
1868 | return; | |
1869 | ||
1870 | fail: | |
f2341e0a | 1871 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
1872 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1873 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
1874 | } |
1875 | ||
f42806df | 1876 | static void service_run_next_control(Service *s) { |
36c16a7c | 1877 | usec_t timeout; |
034c6ed7 LP |
1878 | int r; |
1879 | ||
1880 | assert(s); | |
1881 | assert(s->control_command); | |
1882 | assert(s->control_command->command_next); | |
1883 | ||
34e9ba66 | 1884 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 1885 | |
34e9ba66 | 1886 | s->control_command = s->control_command->command_next; |
5e94833f LP |
1887 | service_unwatch_control_pid(s); |
1888 | ||
36c16a7c LP |
1889 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1890 | timeout = s->timeout_start_usec; | |
1891 | else | |
1892 | timeout = s->timeout_stop_usec; | |
1893 | ||
ecedd90f LP |
1894 | r = service_spawn(s, |
1895 | s->control_command, | |
36c16a7c | 1896 | timeout, |
ecedd90f LP |
1897 | false, |
1898 | !s->permissions_start_only, | |
1899 | !s->root_directory_start_only, | |
1900 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
1901 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
ecedd90f LP |
1902 | true, |
1903 | &s->control_pid); | |
1904 | if (r < 0) | |
034c6ed7 LP |
1905 | goto fail; |
1906 | ||
1907 | return; | |
1908 | ||
1909 | fail: | |
f2341e0a | 1910 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 1911 | |
80876c20 | 1912 | if (s->state == SERVICE_START_PRE) |
f42806df | 1913 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 1914 | else if (s->state == SERVICE_STOP) |
f42806df | 1915 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1916 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 1917 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 1918 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
1919 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1920 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 1921 | } else |
f42806df | 1922 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
1923 | } |
1924 | ||
f42806df | 1925 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
1926 | pid_t pid; |
1927 | int r; | |
1928 | ||
1929 | assert(s); | |
867b3b7d LP |
1930 | assert(s->main_command); |
1931 | assert(s->main_command->command_next); | |
1932 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 1933 | |
867b3b7d | 1934 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
1935 | service_unwatch_main_pid(s); |
1936 | ||
ecedd90f LP |
1937 | r = service_spawn(s, |
1938 | s->main_command, | |
21b2ce39 | 1939 | s->timeout_start_usec, |
ecedd90f LP |
1940 | true, |
1941 | true, | |
1942 | true, | |
1943 | true, | |
ecedd90f LP |
1944 | false, |
1945 | &pid); | |
1946 | if (r < 0) | |
34e9ba66 LP |
1947 | goto fail; |
1948 | ||
1949 | service_set_main_pid(s, pid); | |
1950 | ||
1951 | return; | |
1952 | ||
1953 | fail: | |
f2341e0a | 1954 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 1955 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
1956 | } |
1957 | ||
87f0e418 LP |
1958 | static int service_start(Unit *u) { |
1959 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1960 | |
1961 | assert(s); | |
1962 | ||
034c6ed7 LP |
1963 | /* We cannot fulfill this request right now, try again later |
1964 | * please! */ | |
a00973af LP |
1965 | if (IN_SET(s->state, |
1966 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1967 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
1968 | return -EAGAIN; |
1969 | ||
034c6ed7 | 1970 | /* Already on it! */ |
a00973af | 1971 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
1972 | return 0; |
1973 | ||
2e9d6c12 | 1974 | /* A service that will be restarted must be stopped first to |
7f2cddae | 1975 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 1976 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
1977 | * service should be manually restarted, not started. We |
1978 | * simply return EAGAIN here, so that any start jobs stay | |
1979 | * queued, and assume that the auto restart timer will | |
1980 | * eventually trigger the restart. */ | |
1981 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 1982 | return -EAGAIN; |
2e9d6c12 | 1983 | |
a00973af | 1984 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 1985 | |
f42806df LP |
1986 | s->result = SERVICE_SUCCESS; |
1987 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 1988 | s->main_pid_known = false; |
6dfa5494 | 1989 | s->main_pid_alien = false; |
47342320 | 1990 | s->forbid_restart = false; |
5ad096b3 | 1991 | s->reset_cpu_usage = true; |
034c6ed7 | 1992 | |
a1e58e8e | 1993 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
1994 | s->status_errno = 0; |
1995 | ||
308d72dc LP |
1996 | s->notify_state = NOTIFY_UNKNOWN; |
1997 | ||
034c6ed7 | 1998 | service_enter_start_pre(s); |
82a2b6bb | 1999 | return 1; |
5cb5a6ff LP |
2000 | } |
2001 | ||
87f0e418 LP |
2002 | static int service_stop(Unit *u) { |
2003 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2004 | |
2005 | assert(s); | |
2006 | ||
a509f0e6 | 2007 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2008 | s->forbid_restart = true; |
034c6ed7 | 2009 | |
e537352b | 2010 | /* Already on it */ |
a00973af LP |
2011 | if (IN_SET(s->state, |
2012 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2013 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2014 | return 0; |
2015 | ||
f0c7b229 | 2016 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2017 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2018 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2019 | return 0; |
2020 | } | |
2021 | ||
3f6c78dc LP |
2022 | /* If there's already something running we go directly into |
2023 | * kill mode. */ | |
a00973af | 2024 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2025 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2026 | return 0; |
2027 | } | |
5cb5a6ff | 2028 | |
a00973af | 2029 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2030 | |
f42806df | 2031 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2032 | return 1; |
5cb5a6ff LP |
2033 | } |
2034 | ||
87f0e418 LP |
2035 | static int service_reload(Unit *u) { |
2036 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2037 | |
2038 | assert(s); | |
2039 | ||
80876c20 | 2040 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2041 | |
2042 | service_enter_reload(s); | |
2d018ae2 | 2043 | return 1; |
5cb5a6ff LP |
2044 | } |
2045 | ||
44a6b1b6 | 2046 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2047 | Service *s = SERVICE(u); |
034c6ed7 LP |
2048 | |
2049 | assert(s); | |
2050 | ||
2051 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2052 | } | |
2053 | ||
a16e1123 LP |
2054 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2055 | Service *s = SERVICE(u); | |
2339fc93 | 2056 | ServiceFDStore *fs; |
a34ceba6 | 2057 | int r; |
a16e1123 LP |
2058 | |
2059 | assert(u); | |
2060 | assert(f); | |
2061 | assert(fds); | |
2062 | ||
2063 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2064 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2065 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2066 | |
2067 | if (s->control_pid > 0) | |
f06db334 | 2068 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2069 | |
5925dd3c | 2070 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2071 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2072 | |
2073 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2074 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
d8ccf5fd | 2075 | unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner); |
a16e1123 | 2076 | |
a34ceba6 LP |
2077 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2078 | if (r < 0) | |
2079 | return r; | |
3a2776bc | 2080 | |
cfc4eb4c LP |
2081 | /* FIXME: There's a minor uncleanliness here: if there are |
2082 | * multiple commands attached here, we will start from the | |
2083 | * first one again */ | |
a16e1123 | 2084 | if (s->control_command_id >= 0) |
f06db334 | 2085 | unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); |
a16e1123 | 2086 | |
a34ceba6 LP |
2087 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2088 | if (r < 0) | |
2089 | return r; | |
2090 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2091 | if (r < 0) | |
2092 | return r; | |
2093 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2094 | if (r < 0) | |
2095 | return r; | |
e44da745 | 2096 | |
a34ceba6 | 2097 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2098 | if (r < 0) |
2099 | return r; | |
e44da745 | 2100 | |
2339fc93 | 2101 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2102 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2103 | int copy; |
2104 | ||
2105 | copy = fdset_put_dup(fds, fs->fd); | |
2106 | if (copy < 0) | |
2107 | return copy; | |
2108 | ||
8dd4c05b LP |
2109 | c = cescape(fs->fdname); |
2110 | ||
2111 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2112 | } |
2113 | ||
ecdbca40 | 2114 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2115 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2116 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2117 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2118 | |
799fd0fd | 2119 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2120 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2121 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2122 | } |
2123 | } | |
f06db334 | 2124 | |
36b693a6 | 2125 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2126 | |
a34ceba6 | 2127 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2128 | |
a16e1123 LP |
2129 | return 0; |
2130 | } | |
2131 | ||
2132 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2133 | Service *s = SERVICE(u); | |
2339fc93 | 2134 | int r; |
a16e1123 LP |
2135 | |
2136 | assert(u); | |
2137 | assert(key); | |
2138 | assert(value); | |
2139 | assert(fds); | |
2140 | ||
2141 | if (streq(key, "state")) { | |
2142 | ServiceState state; | |
2143 | ||
117dcc57 ZJS |
2144 | state = service_state_from_string(value); |
2145 | if (state < 0) | |
f2341e0a | 2146 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2147 | else |
2148 | s->deserialized_state = state; | |
f42806df LP |
2149 | } else if (streq(key, "result")) { |
2150 | ServiceResult f; | |
2151 | ||
2152 | f = service_result_from_string(value); | |
2153 | if (f < 0) | |
f2341e0a | 2154 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2155 | else if (f != SERVICE_SUCCESS) |
2156 | s->result = f; | |
2157 | ||
2158 | } else if (streq(key, "reload-result")) { | |
2159 | ServiceResult f; | |
2160 | ||
2161 | f = service_result_from_string(value); | |
2162 | if (f < 0) | |
f2341e0a | 2163 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2164 | else if (f != SERVICE_SUCCESS) |
2165 | s->reload_result = f; | |
a16e1123 | 2166 | |
a16e1123 | 2167 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2168 | pid_t pid; |
a16e1123 | 2169 | |
e364ad06 | 2170 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2171 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2172 | else |
e55224ca | 2173 | s->control_pid = pid; |
a16e1123 | 2174 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2175 | pid_t pid; |
a16e1123 | 2176 | |
e364ad06 | 2177 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2178 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2179 | else { |
2180 | service_set_main_pid(s, pid); | |
2181 | unit_watch_pid(UNIT(s), pid); | |
2182 | } | |
a16e1123 LP |
2183 | } else if (streq(key, "main-pid-known")) { |
2184 | int b; | |
2185 | ||
117dcc57 ZJS |
2186 | b = parse_boolean(value); |
2187 | if (b < 0) | |
f2341e0a | 2188 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2189 | else |
2190 | s->main_pid_known = b; | |
de1d4f9b WF |
2191 | } else if (streq(key, "bus-name-good")) { |
2192 | int b; | |
2193 | ||
2194 | b = parse_boolean(value); | |
2195 | if (b < 0) | |
2196 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2197 | else | |
2198 | s->bus_name_good = b; | |
d8ccf5fd DM |
2199 | } else if (streq(key, "bus-name-owner")) { |
2200 | r = free_and_strdup(&s->bus_name_owner, value); | |
2201 | if (r < 0) | |
2202 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2203 | } else if (streq(key, "status-text")) { |
2204 | char *t; | |
2205 | ||
f2341e0a LP |
2206 | r = cunescape(value, 0, &t); |
2207 | if (r < 0) | |
2208 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2209 | else { |
3a2776bc LP |
2210 | free(s->status_text); |
2211 | s->status_text = t; | |
2212 | } | |
2213 | ||
a16e1123 LP |
2214 | } else if (streq(key, "control-command")) { |
2215 | ServiceExecCommand id; | |
2216 | ||
117dcc57 ZJS |
2217 | id = service_exec_command_from_string(value); |
2218 | if (id < 0) | |
f2341e0a | 2219 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
a16e1123 LP |
2220 | else { |
2221 | s->control_command_id = id; | |
2222 | s->control_command = s->exec_command[id]; | |
2223 | } | |
2224 | } else if (streq(key, "socket-fd")) { | |
2225 | int fd; | |
2226 | ||
2227 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2228 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2229 | else { |
574634bc | 2230 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2231 | s->socket_fd = fdset_remove(fds, fd); |
2232 | } | |
2339fc93 | 2233 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2234 | const char *fdv; |
2235 | size_t pf; | |
2339fc93 LP |
2236 | int fd; |
2237 | ||
8dd4c05b LP |
2238 | pf = strcspn(value, WHITESPACE); |
2239 | fdv = strndupa(value, pf); | |
2240 | ||
2241 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2242 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2243 | else { |
8dd4c05b LP |
2244 | _cleanup_free_ char *t = NULL; |
2245 | const char *fdn; | |
2246 | ||
2247 | fdn = value + pf; | |
2248 | fdn += strspn(fdn, WHITESPACE); | |
2249 | (void) cunescape(fdn, 0, &t); | |
2250 | ||
2251 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2252 | if (r < 0) |
f2341e0a | 2253 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
2339fc93 LP |
2254 | else if (r > 0) |
2255 | fdset_remove(fds, fd); | |
2256 | } | |
2257 | ||
ecdbca40 LP |
2258 | } else if (streq(key, "main-exec-status-pid")) { |
2259 | pid_t pid; | |
2260 | ||
e364ad06 | 2261 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2262 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2263 | else |
2264 | s->main_exec_status.pid = pid; | |
2265 | } else if (streq(key, "main-exec-status-code")) { | |
2266 | int i; | |
2267 | ||
e364ad06 | 2268 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2269 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2270 | else |
2271 | s->main_exec_status.code = i; | |
2272 | } else if (streq(key, "main-exec-status-status")) { | |
2273 | int i; | |
2274 | ||
e364ad06 | 2275 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2276 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2277 | else |
2278 | s->main_exec_status.status = i; | |
799fd0fd LP |
2279 | } else if (streq(key, "main-exec-status-start")) |
2280 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2281 | else if (streq(key, "main-exec-status-exit")) | |
2282 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2283 | else if (streq(key, "watchdog-timestamp")) |
2284 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2285 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2286 | int b; |
2287 | ||
2288 | b = parse_boolean(value); | |
2289 | if (b < 0) | |
f2341e0a | 2290 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2291 | else |
2292 | s->forbid_restart = b; | |
a34ceba6 LP |
2293 | } else if (streq(key, "stdin-fd")) { |
2294 | int fd; | |
2295 | ||
2296 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2297 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2298 | else { | |
2299 | asynchronous_close(s->stdin_fd); | |
2300 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2301 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2302 | } |
2303 | } else if (streq(key, "stdout-fd")) { | |
2304 | int fd; | |
2305 | ||
2306 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2307 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2308 | else { | |
2309 | asynchronous_close(s->stdout_fd); | |
2310 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2311 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2312 | } |
2313 | } else if (streq(key, "stderr-fd")) { | |
2314 | int fd; | |
2315 | ||
2316 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2317 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2318 | else { | |
2319 | asynchronous_close(s->stderr_fd); | |
2320 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2321 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 2322 | } |
c17ec25e | 2323 | } else |
f2341e0a | 2324 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2325 | |
2326 | return 0; | |
2327 | } | |
2328 | ||
44a6b1b6 | 2329 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2330 | const UnitActiveState *table; |
2331 | ||
87f0e418 | 2332 | assert(u); |
5cb5a6ff | 2333 | |
e056b01d LP |
2334 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2335 | ||
2336 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2337 | } |
2338 | ||
10a94420 LP |
2339 | static const char *service_sub_state_to_string(Unit *u) { |
2340 | assert(u); | |
2341 | ||
2342 | return service_state_to_string(SERVICE(u)->state); | |
2343 | } | |
2344 | ||
701cc384 LP |
2345 | static bool service_check_gc(Unit *u) { |
2346 | Service *s = SERVICE(u); | |
2347 | ||
2348 | assert(s); | |
2349 | ||
6d55002a LP |
2350 | /* Never clean up services that still have a process around, |
2351 | * even if the service is formally dead. */ | |
2352 | if (cgroup_good(s) > 0 || | |
2353 | main_pid_good(s) > 0 || | |
2354 | control_pid_good(s) > 0) | |
2355 | return true; | |
2356 | ||
6d55002a LP |
2357 | return false; |
2358 | } | |
2359 | ||
3a111838 MS |
2360 | static int service_retry_pid_file(Service *s) { |
2361 | int r; | |
2362 | ||
2363 | assert(s->pid_file); | |
2364 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2365 | ||
2366 | r = service_load_pid_file(s, false); | |
2367 | if (r < 0) | |
2368 | return r; | |
2369 | ||
2370 | service_unwatch_pid_file(s); | |
2371 | ||
f42806df | 2372 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2373 | return 0; |
2374 | } | |
2375 | ||
2376 | static int service_watch_pid_file(Service *s) { | |
2377 | int r; | |
2378 | ||
f2341e0a | 2379 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2380 | |
718db961 | 2381 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2382 | if (r < 0) |
2383 | goto fail; | |
2384 | ||
2385 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2386 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2387 | service_retry_pid_file(s); |
2388 | ||
2389 | return 0; | |
2390 | fail: | |
f2341e0a | 2391 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2392 | service_unwatch_pid_file(s); |
2393 | return r; | |
2394 | } | |
2395 | ||
2396 | static int service_demand_pid_file(Service *s) { | |
2397 | PathSpec *ps; | |
2398 | ||
2399 | assert(s->pid_file); | |
2400 | assert(!s->pid_file_pathspec); | |
2401 | ||
2402 | ps = new0(PathSpec, 1); | |
2403 | if (!ps) | |
2404 | return -ENOMEM; | |
2405 | ||
718db961 | 2406 | ps->unit = UNIT(s); |
3a111838 MS |
2407 | ps->path = strdup(s->pid_file); |
2408 | if (!ps->path) { | |
2409 | free(ps); | |
2410 | return -ENOMEM; | |
2411 | } | |
2412 | ||
2413 | path_kill_slashes(ps->path); | |
2414 | ||
2415 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2416 | * keep their PID file open all the time. */ | |
2417 | ps->type = PATH_MODIFIED; | |
2418 | ps->inotify_fd = -1; | |
2419 | ||
2420 | s->pid_file_pathspec = ps; | |
2421 | ||
2422 | return service_watch_pid_file(s); | |
2423 | } | |
2424 | ||
718db961 | 2425 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2426 | PathSpec *p = userdata; |
2427 | Service *s; | |
2428 | ||
2429 | assert(p); | |
2430 | ||
2431 | s = SERVICE(p->unit); | |
3a111838 MS |
2432 | |
2433 | assert(s); | |
2434 | assert(fd >= 0); | |
2435 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2436 | assert(s->pid_file_pathspec); | |
57020a3a | 2437 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2438 | |
f2341e0a | 2439 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2440 | |
e14c2802 | 2441 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2442 | goto fail; |
2443 | ||
2444 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2445 | return 0; |
3a111838 MS |
2446 | |
2447 | if (service_watch_pid_file(s) < 0) | |
2448 | goto fail; | |
2449 | ||
718db961 LP |
2450 | return 0; |
2451 | ||
3a111838 MS |
2452 | fail: |
2453 | service_unwatch_pid_file(s); | |
f42806df | 2454 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2455 | return 0; |
3a111838 MS |
2456 | } |
2457 | ||
a911bb9a LP |
2458 | static void service_notify_cgroup_empty_event(Unit *u) { |
2459 | Service *s = SERVICE(u); | |
2460 | ||
2461 | assert(u); | |
2462 | ||
f2341e0a | 2463 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2464 | |
2465 | switch (s->state) { | |
2466 | ||
2467 | /* Waiting for SIGCHLD is usually more interesting, | |
2468 | * because it includes return codes/signals. Which is | |
2469 | * why we ignore the cgroup events for most cases, | |
2470 | * except when we don't know pid which to expect the | |
2471 | * SIGCHLD for. */ | |
2472 | ||
2473 | case SERVICE_START: | |
2474 | case SERVICE_START_POST: | |
2475 | /* If we were hoping for the daemon to write its PID file, | |
2476 | * we can give up now. */ | |
2477 | if (s->pid_file_pathspec) { | |
f2341e0a | 2478 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2479 | |
a911bb9a LP |
2480 | service_unwatch_pid_file(s); |
2481 | if (s->state == SERVICE_START) | |
2482 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); | |
2483 | else | |
2484 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); | |
2485 | } | |
2486 | break; | |
2487 | ||
2488 | case SERVICE_RUNNING: | |
2489 | /* service_enter_running() will figure out what to do */ | |
2490 | service_enter_running(s, SERVICE_SUCCESS); | |
2491 | break; | |
2492 | ||
db2cb23b | 2493 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2494 | case SERVICE_STOP_SIGTERM: |
2495 | case SERVICE_STOP_SIGKILL: | |
2496 | ||
2497 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2498 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2499 | ||
2500 | break; | |
2501 | ||
2502 | case SERVICE_STOP_POST: | |
2503 | case SERVICE_FINAL_SIGTERM: | |
2504 | case SERVICE_FINAL_SIGKILL: | |
2505 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2506 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2507 | ||
2508 | break; | |
2509 | ||
2510 | default: | |
2511 | ; | |
2512 | } | |
2513 | } | |
2514 | ||
87f0e418 LP |
2515 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2516 | Service *s = SERVICE(u); | |
f42806df | 2517 | ServiceResult f; |
5cb5a6ff LP |
2518 | |
2519 | assert(s); | |
034c6ed7 LP |
2520 | assert(pid >= 0); |
2521 | ||
96342de6 LN |
2522 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2523 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2524 | f = SERVICE_SUCCESS; |
2525 | else if (code == CLD_EXITED) | |
2526 | f = SERVICE_FAILURE_EXIT_CODE; | |
2527 | else if (code == CLD_KILLED) | |
2528 | f = SERVICE_FAILURE_SIGNAL; | |
2529 | else if (code == CLD_DUMPED) | |
2530 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2531 | else |
cfc4eb4c | 2532 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2533 | |
2534 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2535 | /* Forking services may occasionally move to a new PID. |
2536 | * As long as they update the PID file before exiting the old | |
2537 | * PID, they're fine. */ | |
5375410b | 2538 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2539 | return; |
034c6ed7 | 2540 | |
034c6ed7 | 2541 | s->main_pid = 0; |
6ea832a2 | 2542 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2543 | |
867b3b7d | 2544 | if (s->main_command) { |
fbeefb45 LP |
2545 | /* If this is not a forking service than the |
2546 | * main process got started and hence we copy | |
2547 | * the exit status so that it is recorded both | |
2548 | * as main and as control process exit | |
2549 | * status */ | |
2550 | ||
867b3b7d | 2551 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2552 | |
867b3b7d | 2553 | if (s->main_command->ignore) |
f42806df | 2554 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2555 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2556 | ||
2557 | /* If this is a forked process, then we should | |
2558 | * ignore the return value if this was | |
2559 | * configured for the starter process */ | |
2560 | ||
2561 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2562 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2563 | } |
2564 | ||
f2341e0a LP |
2565 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2566 | LOG_UNIT_ID(u), | |
2567 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", | |
2568 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2569 | strna(code == CLD_EXITED |
2570 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2571 | : signal_to_string(status))), | |
f2341e0a LP |
2572 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2573 | "EXIT_STATUS=%i", status, | |
2574 | NULL); | |
f42806df LP |
2575 | |
2576 | if (f != SERVICE_SUCCESS) | |
2577 | s->result = f; | |
034c6ed7 | 2578 | |
867b3b7d LP |
2579 | if (s->main_command && |
2580 | s->main_command->command_next && | |
f42806df | 2581 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2582 | |
34e9ba66 LP |
2583 | /* There is another command to * |
2584 | * execute, so let's do that. */ | |
034c6ed7 | 2585 | |
f2341e0a | 2586 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2587 | service_run_next_main(s); |
034c6ed7 | 2588 | |
34e9ba66 LP |
2589 | } else { |
2590 | ||
2591 | /* The service exited, so the service is officially | |
2592 | * gone. */ | |
867b3b7d | 2593 | s->main_command = NULL; |
34e9ba66 LP |
2594 | |
2595 | switch (s->state) { | |
2596 | ||
2597 | case SERVICE_START_POST: | |
2598 | case SERVICE_RELOAD: | |
2599 | case SERVICE_STOP: | |
2600 | /* Need to wait until the operation is | |
2601 | * done */ | |
c4653a4d | 2602 | break; |
7d55e835 | 2603 | |
34e9ba66 LP |
2604 | case SERVICE_START: |
2605 | if (s->type == SERVICE_ONESHOT) { | |
2606 | /* This was our main goal, so let's go on */ | |
f42806df | 2607 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2608 | service_enter_start_post(s); |
2609 | else | |
f42806df | 2610 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2611 | break; |
34e9ba66 | 2612 | } |
034c6ed7 | 2613 | |
bfba3256 LP |
2614 | /* Fall through */ |
2615 | ||
34e9ba66 | 2616 | case SERVICE_RUNNING: |
f42806df | 2617 | service_enter_running(s, f); |
34e9ba66 | 2618 | break; |
034c6ed7 | 2619 | |
db2cb23b | 2620 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
2621 | case SERVICE_STOP_SIGTERM: |
2622 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2623 | |
34e9ba66 | 2624 | if (!control_pid_good(s)) |
f42806df | 2625 | service_enter_stop_post(s, f); |
5cb5a6ff | 2626 | |
34e9ba66 LP |
2627 | /* If there is still a control process, wait for that first */ |
2628 | break; | |
2629 | ||
bf108e55 LP |
2630 | case SERVICE_STOP_POST: |
2631 | case SERVICE_FINAL_SIGTERM: | |
2632 | case SERVICE_FINAL_SIGKILL: | |
2633 | ||
2634 | if (!control_pid_good(s)) | |
2635 | service_enter_dead(s, f, true); | |
2636 | break; | |
2637 | ||
34e9ba66 LP |
2638 | default: |
2639 | assert_not_reached("Uh, main process died at wrong time."); | |
2640 | } | |
034c6ed7 | 2641 | } |
5cb5a6ff | 2642 | |
034c6ed7 | 2643 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2644 | s->control_pid = 0; |
2645 | ||
b708e7ce | 2646 | if (s->control_command) { |
8bb2d17d | 2647 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2648 | |
b708e7ce | 2649 | if (s->control_command->ignore) |
f42806df | 2650 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2651 | } |
2652 | ||
f2341e0a LP |
2653 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
2654 | "Control process exited, code=%s status=%i", | |
2655 | sigchld_code_to_string(code), status); | |
f42806df LP |
2656 | |
2657 | if (f != SERVICE_SUCCESS) | |
2658 | s->result = f; | |
034c6ed7 | 2659 | |
88f3e0c9 LP |
2660 | /* Immediately get rid of the cgroup, so that the |
2661 | * kernel doesn't delay the cgroup empty messages for | |
2662 | * the service cgroup any longer than necessary */ | |
4ad49000 | 2663 | service_kill_control_processes(s); |
88f3e0c9 | 2664 | |
34e9ba66 LP |
2665 | if (s->control_command && |
2666 | s->control_command->command_next && | |
f42806df | 2667 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
2668 | |
2669 | /* There is another command to * | |
2670 | * execute, so let's do that. */ | |
2671 | ||
f2341e0a | 2672 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 2673 | service_run_next_control(s); |
034c6ed7 | 2674 | |
80876c20 | 2675 | } else { |
034c6ed7 LP |
2676 | /* No further commands for this step, so let's |
2677 | * figure out what to do next */ | |
2678 | ||
a16e1123 LP |
2679 | s->control_command = NULL; |
2680 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2681 | ||
f2341e0a | 2682 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 2683 | |
034c6ed7 LP |
2684 | switch (s->state) { |
2685 | ||
2686 | case SERVICE_START_PRE: | |
f42806df | 2687 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
2688 | service_enter_start(s); |
2689 | else | |
f42806df | 2690 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
2691 | break; |
2692 | ||
2693 | case SERVICE_START: | |
bfba3256 LP |
2694 | if (s->type != SERVICE_FORKING) |
2695 | /* Maybe spurious event due to a reload that changed the type? */ | |
2696 | break; | |
034c6ed7 | 2697 | |
f42806df LP |
2698 | if (f != SERVICE_SUCCESS) { |
2699 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
2700 | break; |
2701 | } | |
034c6ed7 | 2702 | |
3a111838 | 2703 | if (s->pid_file) { |
f42806df LP |
2704 | bool has_start_post; |
2705 | int r; | |
2706 | ||
3a111838 MS |
2707 | /* Let's try to load the pid file here if we can. |
2708 | * The PID file might actually be created by a START_POST | |
2709 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
2710 | |
2711 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
2712 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
2713 | if (!has_start_post && r < 0) { |
2714 | r = service_demand_pid_file(s); | |
2715 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2716 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2717 | break; |
2718 | } | |
034c6ed7 | 2719 | } else |
783e05d6 | 2720 | service_search_main_pid(s); |
034c6ed7 | 2721 | |
3a111838 | 2722 | service_enter_start_post(s); |
034c6ed7 LP |
2723 | break; |
2724 | ||
2725 | case SERVICE_START_POST: | |
f42806df | 2726 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 2727 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 2728 | break; |
034c6ed7 LP |
2729 | } |
2730 | ||
2096e009 | 2731 | if (s->pid_file) { |
f42806df LP |
2732 | int r; |
2733 | ||
2734 | r = service_load_pid_file(s, true); | |
2096e009 MS |
2735 | if (r < 0) { |
2736 | r = service_demand_pid_file(s); | |
2737 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2738 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
2739 | break; |
2740 | } | |
2741 | } else | |
783e05d6 | 2742 | service_search_main_pid(s); |
2096e009 | 2743 | |
f42806df | 2744 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 2745 | break; |
034c6ed7 LP |
2746 | |
2747 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
2748 | if (f == SERVICE_SUCCESS) |
2749 | if (service_load_pid_file(s, true) < 0) | |
2750 | service_search_main_pid(s); | |
3185a36b | 2751 | |
f42806df LP |
2752 | s->reload_result = f; |
2753 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2754 | break; |
2755 | ||
2756 | case SERVICE_STOP: | |
f42806df | 2757 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
2758 | break; |
2759 | ||
db2cb23b | 2760 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
2761 | case SERVICE_STOP_SIGTERM: |
2762 | case SERVICE_STOP_SIGKILL: | |
2763 | if (main_pid_good(s) <= 0) | |
f42806df | 2764 | service_enter_stop_post(s, f); |
034c6ed7 LP |
2765 | |
2766 | /* If there is still a service | |
2767 | * process around, wait until | |
2768 | * that one quit, too */ | |
2769 | break; | |
2770 | ||
2771 | case SERVICE_STOP_POST: | |
2772 | case SERVICE_FINAL_SIGTERM: | |
2773 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
2774 | if (main_pid_good(s) <= 0) |
2775 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
2776 | break; |
2777 | ||
2778 | default: | |
2779 | assert_not_reached("Uh, control process died at wrong time."); | |
2780 | } | |
2781 | } | |
8c47c732 | 2782 | } |
c4e2ceae LP |
2783 | |
2784 | /* Notify clients about changed exit status */ | |
2785 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
2786 | |
2787 | /* We got one SIGCHLD for the service, let's watch all | |
2788 | * processes that are now running of the service, and watch | |
2789 | * that. Among the PIDs we then watch will be children | |
2790 | * reassigned to us, which hopefully allows us to identify | |
2791 | * when all children are gone */ | |
2792 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
2793 | unit_watch_all_pids(u); | |
2794 | ||
2795 | /* If the PID set is empty now, then let's finish this off */ | |
2796 | if (set_isempty(u->pids)) | |
2797 | service_notify_cgroup_empty_event(u); | |
034c6ed7 LP |
2798 | } |
2799 | ||
718db961 LP |
2800 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2801 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
2802 | |
2803 | assert(s); | |
718db961 | 2804 | assert(source == s->timer_event_source); |
034c6ed7 LP |
2805 | |
2806 | switch (s->state) { | |
2807 | ||
2808 | case SERVICE_START_PRE: | |
2809 | case SERVICE_START: | |
f2341e0a | 2810 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
f42806df | 2811 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
2812 | break; |
2813 | ||
034c6ed7 | 2814 | case SERVICE_START_POST: |
f2341e0a | 2815 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 2816 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2817 | break; |
2818 | ||
36c16a7c LP |
2819 | case SERVICE_RUNNING: |
2820 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
2821 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
2822 | break; | |
2823 | ||
e2f3b44c | 2824 | case SERVICE_RELOAD: |
089b64d5 | 2825 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
478b6192 | 2826 | service_kill_control_processes(s); |
f42806df LP |
2827 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
2828 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
2829 | break; |
2830 | ||
034c6ed7 | 2831 | case SERVICE_STOP: |
f2341e0a | 2832 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 2833 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2834 | break; |
2835 | ||
db2cb23b | 2836 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 2837 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 2838 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
2839 | break; |
2840 | ||
034c6ed7 | 2841 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 2842 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2843 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 2844 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2845 | } else { |
f2341e0a | 2846 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 2847 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
2848 | } |
2849 | ||
034c6ed7 LP |
2850 | break; |
2851 | ||
2852 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 2853 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
2854 | * Must be something we cannot kill, so let's just be |
2855 | * weirded out and continue */ | |
2856 | ||
f2341e0a | 2857 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 2858 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2859 | break; |
2860 | ||
2861 | case SERVICE_STOP_POST: | |
f2341e0a | 2862 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 2863 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2864 | break; |
2865 | ||
2866 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 2867 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2868 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 2869 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2870 | } else { |
f2341e0a | 2871 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 2872 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
2873 | } |
2874 | ||
034c6ed7 LP |
2875 | break; |
2876 | ||
2877 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 2878 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 2879 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
2880 | break; |
2881 | ||
2882 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 2883 | log_unit_info(UNIT(s), |
ef417cfd | 2884 | s->restart_usec > 0 ? |
f2341e0a LP |
2885 | "Service hold-off time over, scheduling restart." : |
2886 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
2887 | service_enter_restart(s); |
2888 | break; | |
2889 | ||
2890 | default: | |
2891 | assert_not_reached("Timeout at wrong time."); | |
2892 | } | |
718db961 LP |
2893 | |
2894 | return 0; | |
2895 | } | |
2896 | ||
2897 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
2898 | Service *s = SERVICE(userdata); | |
a7850c7d | 2899 | char t[FORMAT_TIMESPAN_MAX]; |
718db961 LP |
2900 | |
2901 | assert(s); | |
2902 | assert(source == s->watchdog_event_source); | |
2903 | ||
f2341e0a | 2904 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
a7850c7d | 2905 | format_timespan(t, sizeof(t), s->watchdog_usec, 1)); |
8bb2d17d | 2906 | |
db2cb23b | 2907 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 2908 | |
718db961 | 2909 | return 0; |
5cb5a6ff LP |
2910 | } |
2911 | ||
a354329f | 2912 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 2913 | Service *s = SERVICE(u); |
308d72dc | 2914 | _cleanup_free_ char *cc = NULL; |
30b5275a | 2915 | bool notify_dbus = false; |
308d72dc | 2916 | const char *e; |
8c47c732 LP |
2917 | |
2918 | assert(u); | |
2919 | ||
308d72dc | 2920 | cc = strv_join(tags, ", "); |
da13d4d2 | 2921 | |
c952c6ec | 2922 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 2923 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 2924 | return; |
34959677 | 2925 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 2926 | if (s->main_pid != 0) |
f2341e0a | 2927 | 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 | 2928 | else |
f2341e0a | 2929 | 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 | 2930 | return; |
34959677 TG |
2931 | } else |
2932 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 2933 | |
8c47c732 | 2934 | /* Interpret MAINPID= */ |
28849dba | 2935 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 2936 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 2937 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 2938 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
8c47c732 | 2939 | else { |
5925dd3c | 2940 | service_set_main_pid(s, pid); |
7400b9d2 | 2941 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 2942 | notify_dbus = true; |
8c47c732 LP |
2943 | } |
2944 | } | |
2945 | ||
308d72dc LP |
2946 | /* Interpret RELOADING= */ |
2947 | if (strv_find(tags, "RELOADING=1")) { | |
2948 | ||
308d72dc LP |
2949 | s->notify_state = NOTIFY_RELOADING; |
2950 | ||
2951 | if (s->state == SERVICE_RUNNING) | |
2952 | service_enter_reload_by_notify(s); | |
2953 | ||
2954 | notify_dbus = true; | |
2955 | } | |
2956 | ||
8c47c732 | 2957 | /* Interpret READY= */ |
308d72dc LP |
2958 | if (strv_find(tags, "READY=1")) { |
2959 | ||
308d72dc LP |
2960 | s->notify_state = NOTIFY_READY; |
2961 | ||
2962 | /* Type=notify services inform us about completed | |
2963 | * initialization with READY=1 */ | |
2964 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
2965 | service_enter_start_post(s); | |
2966 | ||
2967 | /* Sending READY=1 while we are reloading informs us | |
2968 | * that the reloading is complete */ | |
2969 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
2970 | service_enter_running(s, SERVICE_SUCCESS); | |
2971 | ||
2972 | notify_dbus = true; | |
2973 | } | |
2974 | ||
2975 | /* Interpret STOPPING= */ | |
2976 | if (strv_find(tags, "STOPPING=1")) { | |
2977 | ||
308d72dc LP |
2978 | s->notify_state = NOTIFY_STOPPING; |
2979 | ||
2980 | if (s->state == SERVICE_RUNNING) | |
2981 | service_enter_stop_by_notify(s); | |
2982 | ||
30b5275a | 2983 | notify_dbus = true; |
8c47c732 LP |
2984 | } |
2985 | ||
2986 | /* Interpret STATUS= */ | |
28849dba | 2987 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 2988 | if (e) { |
28849dba | 2989 | _cleanup_free_ char *t = NULL; |
8c47c732 | 2990 | |
28849dba LP |
2991 | if (!isempty(e)) { |
2992 | if (!utf8_is_valid(e)) | |
f2341e0a | 2993 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 2994 | else { |
28849dba LP |
2995 | t = strdup(e); |
2996 | if (!t) | |
2997 | log_oom(); | |
3a2776bc | 2998 | } |
28849dba | 2999 | } |
8c47c732 | 3000 | |
30b5275a | 3001 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3002 | |
3a2776bc LP |
3003 | free(s->status_text); |
3004 | s->status_text = t; | |
28849dba LP |
3005 | t = NULL; |
3006 | ||
30b5275a | 3007 | notify_dbus = true; |
28849dba | 3008 | } |
8c47c732 | 3009 | } |
842129f5 | 3010 | |
4774e357 | 3011 | /* Interpret ERRNO= */ |
28849dba | 3012 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3013 | if (e) { |
3014 | int status_errno; | |
3015 | ||
28849dba | 3016 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3017 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3018 | else { |
4774e357 MAA |
3019 | if (s->status_errno != status_errno) { |
3020 | s->status_errno = status_errno; | |
3021 | notify_dbus = true; | |
3022 | } | |
3023 | } | |
3024 | } | |
3025 | ||
6f285378 | 3026 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3027 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3028 | service_reset_watchdog(s); |
c4e2ceae | 3029 | |
8dd4c05b LP |
3030 | if (strv_find(tags, "FDSTORE=1")) { |
3031 | const char *name; | |
3032 | ||
3033 | name = strv_find_startswith(tags, "FDNAME="); | |
3034 | if (name && !fdname_is_valid(name)) { | |
3035 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3036 | name = NULL; | |
3037 | } | |
3038 | ||
3039 | service_add_fd_store_set(s, fds, name); | |
3040 | } | |
a354329f | 3041 | |
c4e2ceae | 3042 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3043 | if (notify_dbus) |
3044 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3045 | } |
3046 | ||
7a7821c8 | 3047 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 3048 | Service *s = SERVICE(u); |
7a7821c8 | 3049 | uint64_t t; |
68db7a3b ZJS |
3050 | int r; |
3051 | ||
3052 | if (!s->timer_event_source) | |
3053 | return 0; | |
3054 | ||
7a7821c8 | 3055 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
3056 | if (r < 0) |
3057 | return r; | |
7a7821c8 LP |
3058 | if (t == USEC_INFINITY) |
3059 | return 0; | |
68db7a3b | 3060 | |
7a7821c8 | 3061 | *timeout = t; |
68db7a3b ZJS |
3062 | return 1; |
3063 | } | |
3064 | ||
05e343b7 LP |
3065 | static void service_bus_name_owner_change( |
3066 | Unit *u, | |
3067 | const char *name, | |
3068 | const char *old_owner, | |
3069 | const char *new_owner) { | |
3070 | ||
3071 | Service *s = SERVICE(u); | |
718db961 | 3072 | int r; |
05e343b7 LP |
3073 | |
3074 | assert(s); | |
3075 | assert(name); | |
3076 | ||
3077 | assert(streq(s->bus_name, name)); | |
3078 | assert(old_owner || new_owner); | |
3079 | ||
3080 | if (old_owner && new_owner) | |
f2341e0a | 3081 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3082 | else if (old_owner) |
f2341e0a | 3083 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3084 | else |
f2341e0a | 3085 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3086 | |
3087 | s->bus_name_good = !!new_owner; | |
3088 | ||
d8ccf5fd DM |
3089 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
3090 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
3091 | if (r < 0) { | |
3092 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
3093 | return; | |
3094 | } | |
3095 | ||
05e343b7 LP |
3096 | if (s->type == SERVICE_DBUS) { |
3097 | ||
3098 | /* service_enter_running() will figure out what to | |
3099 | * do */ | |
3100 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3101 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3102 | else if (s->state == SERVICE_START && new_owner) |
3103 | service_enter_start_post(s); | |
3104 | ||
3105 | } else if (new_owner && | |
3106 | s->main_pid <= 0 && | |
3107 | (s->state == SERVICE_START || | |
3108 | s->state == SERVICE_START_POST || | |
3109 | s->state == SERVICE_RUNNING || | |
3110 | s->state == SERVICE_RELOAD)) { | |
3111 | ||
4afd3348 | 3112 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 3113 | pid_t pid; |
05e343b7 | 3114 | |
718db961 | 3115 | /* Try to acquire PID from bus service */ |
05e343b7 | 3116 | |
056f95d0 | 3117 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3118 | if (r >= 0) |
3119 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3120 | if (r >= 0) { |
f2341e0a | 3121 | log_unit_debug(u, "D-Bus name %s is now owned by process %u", name, (unsigned) pid); |
05e343b7 | 3122 | |
718db961 LP |
3123 | service_set_main_pid(s, pid); |
3124 | unit_watch_pid(UNIT(s), pid); | |
3125 | } | |
7400b9d2 | 3126 | } |
05e343b7 LP |
3127 | } |
3128 | ||
16115b0a | 3129 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3130 | _cleanup_free_ char *peer = NULL; |
3131 | int r; | |
57020a3a | 3132 | |
4f2d528d LP |
3133 | assert(s); |
3134 | assert(fd >= 0); | |
3135 | ||
7f2fbbff LP |
3136 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
3137 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 3138 | |
1124fe6f | 3139 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3140 | return -EINVAL; |
3141 | ||
3142 | if (s->socket_fd >= 0) | |
3143 | return -EBUSY; | |
3144 | ||
3145 | if (s->state != SERVICE_DEAD) | |
3146 | return -EAGAIN; | |
3147 | ||
366b7db4 | 3148 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
3149 | |
3150 | if (UNIT(s)->description) { | |
3151 | _cleanup_free_ char *a; | |
3152 | ||
3153 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
3154 | if (!a) | |
3155 | return -ENOMEM; | |
3156 | ||
3157 | r = unit_set_description(UNIT(s), a); | |
3158 | } else | |
3159 | r = unit_set_description(UNIT(s), peer); | |
3160 | ||
3161 | if (r < 0) | |
3162 | return r; | |
3163 | } | |
3164 | ||
7f2fbbff LP |
3165 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); |
3166 | if (r < 0) | |
3167 | return r; | |
3168 | ||
4f2d528d | 3169 | s->socket_fd = fd; |
16115b0a | 3170 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3171 | |
57020a3a | 3172 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
7f2fbbff | 3173 | return 0; |
4f2d528d LP |
3174 | } |
3175 | ||
fdf20a31 | 3176 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3177 | Service *s = SERVICE(u); |
3178 | ||
3179 | assert(s); | |
3180 | ||
fdf20a31 | 3181 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3182 | service_set_state(s, SERVICE_DEAD); |
3183 | ||
f42806df LP |
3184 | s->result = SERVICE_SUCCESS; |
3185 | s->reload_result = SERVICE_SUCCESS; | |
5632e374 LP |
3186 | } |
3187 | ||
718db961 | 3188 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3189 | Service *s = SERVICE(u); |
41efeaec | 3190 | |
814cc562 | 3191 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3192 | } |
3193 | ||
291d565a LP |
3194 | static int service_main_pid(Unit *u) { |
3195 | Service *s = SERVICE(u); | |
3196 | ||
3197 | assert(s); | |
3198 | ||
3199 | return s->main_pid; | |
3200 | } | |
3201 | ||
3202 | static int service_control_pid(Unit *u) { | |
3203 | Service *s = SERVICE(u); | |
3204 | ||
3205 | assert(s); | |
3206 | ||
3207 | return s->control_pid; | |
3208 | } | |
3209 | ||
94f04347 | 3210 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3211 | [SERVICE_RESTART_NO] = "no", |
3212 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3213 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3214 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3215 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3216 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3217 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3218 | }; |
3219 | ||
3220 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3221 | ||
3222 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3223 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3224 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3225 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3226 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3227 | [SERVICE_NOTIFY] = "notify", |
3228 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3229 | }; |
3230 | ||
3231 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3232 | ||
e537352b | 3233 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3234 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3235 | [SERVICE_EXEC_START] = "ExecStart", | |
3236 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3237 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3238 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3239 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3240 | }; | |
3241 | ||
3242 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3243 | ||
c952c6ec LP |
3244 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3245 | [NOTIFY_NONE] = "none", | |
3246 | [NOTIFY_MAIN] = "main", | |
3247 | [NOTIFY_ALL] = "all" | |
3248 | }; | |
3249 | ||
3250 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3251 | ||
308d72dc LP |
3252 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3253 | [NOTIFY_UNKNOWN] = "unknown", | |
3254 | [NOTIFY_READY] = "ready", | |
3255 | [NOTIFY_RELOADING] = "reloading", | |
3256 | [NOTIFY_STOPPING] = "stopping", | |
3257 | }; | |
3258 | ||
3259 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3260 | ||
f42806df LP |
3261 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3262 | [SERVICE_SUCCESS] = "success", | |
3263 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3264 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3265 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3266 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3267 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 3268 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
f42806df LP |
3269 | }; |
3270 | ||
3271 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3272 | ||
87f0e418 | 3273 | const UnitVTable service_vtable = { |
7d17cfbc | 3274 | .object_size = sizeof(Service), |
718db961 LP |
3275 | .exec_context_offset = offsetof(Service, exec_context), |
3276 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3277 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3278 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3279 | |
f975e971 LP |
3280 | .sections = |
3281 | "Unit\0" | |
3282 | "Service\0" | |
3283 | "Install\0", | |
4ad49000 | 3284 | .private_section = "Service", |
71645aca | 3285 | |
034c6ed7 LP |
3286 | .init = service_init, |
3287 | .done = service_done, | |
a16e1123 | 3288 | .load = service_load, |
a354329f | 3289 | .release_resources = service_release_resources, |
a16e1123 LP |
3290 | |
3291 | .coldplug = service_coldplug, | |
034c6ed7 | 3292 | |
5cb5a6ff LP |
3293 | .dump = service_dump, |
3294 | ||
3295 | .start = service_start, | |
3296 | .stop = service_stop, | |
3297 | .reload = service_reload, | |
3298 | ||
034c6ed7 LP |
3299 | .can_reload = service_can_reload, |
3300 | ||
8a0867d6 LP |
3301 | .kill = service_kill, |
3302 | ||
a16e1123 LP |
3303 | .serialize = service_serialize, |
3304 | .deserialize_item = service_deserialize_item, | |
3305 | ||
5cb5a6ff | 3306 | .active_state = service_active_state, |
10a94420 | 3307 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3308 | |
701cc384 | 3309 | .check_gc = service_check_gc, |
701cc384 | 3310 | |
034c6ed7 | 3311 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3312 | |
fdf20a31 | 3313 | .reset_failed = service_reset_failed, |
5632e374 | 3314 | |
4ad49000 | 3315 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3316 | .notify_message = service_notify_message, |
8e274523 | 3317 | |
291d565a LP |
3318 | .main_pid = service_main_pid, |
3319 | .control_pid = service_control_pid, | |
3320 | ||
05e343b7 | 3321 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3322 | |
718db961 | 3323 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3324 | .bus_set_property = bus_service_set_property, |
3325 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3326 | |
68db7a3b | 3327 | .get_timeout = service_get_timeout, |
718db961 LP |
3328 | .can_transient = true, |
3329 | ||
c6918296 MS |
3330 | .status_message_formats = { |
3331 | .starting_stopping = { | |
3332 | [0] = "Starting %s...", | |
3333 | [1] = "Stopping %s...", | |
3334 | }, | |
3335 | .finished_start_job = { | |
3336 | [JOB_DONE] = "Started %s.", | |
3337 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3338 | }, |
3339 | .finished_stop_job = { | |
3340 | [JOB_DONE] = "Stopped %s.", | |
3341 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3342 | }, |
3343 | }, | |
5cb5a6ff | 3344 | }; |