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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 | ||
574634bc | 186 | s->socket_fd = asynchronous_close(s->socket_fd); |
4f2d528d LP |
187 | } |
188 | ||
6cf6bbc2 LP |
189 | static void service_connection_unref(Service *s) { |
190 | assert(s); | |
191 | ||
9444b1f2 | 192 | if (!UNIT_ISSET(s->accept_socket)) |
6cf6bbc2 LP |
193 | return; |
194 | ||
57020a3a LP |
195 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
196 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
197 | } |
198 | ||
a6927d7f MO |
199 | static void service_stop_watchdog(Service *s) { |
200 | assert(s); | |
201 | ||
718db961 | 202 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 203 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
204 | } |
205 | ||
842129f5 | 206 | static void service_start_watchdog(Service *s) { |
bb242b7b MO |
207 | int r; |
208 | ||
209 | assert(s); | |
210 | ||
842129f5 | 211 | if (s->watchdog_usec <= 0) |
bb242b7b MO |
212 | return; |
213 | ||
718db961 | 214 | if (s->watchdog_event_source) { |
36c16a7c | 215 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, s->watchdog_usec)); |
718db961 | 216 | if (r < 0) { |
f2341e0a | 217 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
218 | return; |
219 | } | |
220 | ||
842129f5 | 221 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 222 | } else { |
6a0f1f6d LP |
223 | r = sd_event_add_time( |
224 | UNIT(s)->manager->event, | |
225 | &s->watchdog_event_source, | |
226 | CLOCK_MONOTONIC, | |
36c16a7c | 227 | usec_add(s->watchdog_timestamp.monotonic, s->watchdog_usec), 0, |
6a0f1f6d | 228 | service_dispatch_watchdog, s); |
c4ef3317 | 229 | if (r < 0) { |
f2341e0a | 230 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
231 | return; |
232 | } | |
233 | ||
7dfbe2e3 TG |
234 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
235 | ||
c4ef3317 LP |
236 | /* Let's process everything else which might be a sign |
237 | * of living before we consider a service died. */ | |
238 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
239 | } | |
718db961 | 240 | |
bb242b7b | 241 | if (r < 0) |
f2341e0a | 242 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
243 | } |
244 | ||
a6927d7f MO |
245 | static void service_reset_watchdog(Service *s) { |
246 | assert(s); | |
247 | ||
248 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 249 | service_start_watchdog(s); |
a6927d7f MO |
250 | } |
251 | ||
a354329f LP |
252 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
253 | ||
254 | if (!fs) | |
255 | return; | |
256 | ||
257 | if (fs->service) { | |
258 | assert(fs->service->n_fd_store > 0); | |
259 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
260 | fs->service->n_fd_store--; | |
261 | } | |
262 | ||
263 | if (fs->event_source) { | |
264 | sd_event_source_set_enabled(fs->event_source, SD_EVENT_OFF); | |
265 | sd_event_source_unref(fs->event_source); | |
266 | } | |
267 | ||
8dd4c05b | 268 | free(fs->fdname); |
a354329f LP |
269 | safe_close(fs->fd); |
270 | free(fs); | |
271 | } | |
272 | ||
273 | static void service_release_resources(Unit *u) { | |
274 | Service *s = SERVICE(u); | |
275 | ||
276 | assert(s); | |
277 | ||
a34ceba6 | 278 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
279 | return; |
280 | ||
f2341e0a | 281 | log_unit_debug(u, "Releasing all resources."); |
a354329f | 282 | |
a34ceba6 LP |
283 | s->stdin_fd = safe_close(s->stdin_fd); |
284 | s->stdout_fd = safe_close(s->stdout_fd); | |
285 | s->stderr_fd = safe_close(s->stderr_fd); | |
286 | ||
a354329f LP |
287 | while (s->fd_store) |
288 | service_fd_store_unlink(s->fd_store); | |
289 | ||
290 | assert(s->n_fd_store == 0); | |
291 | } | |
292 | ||
87f0e418 LP |
293 | static void service_done(Unit *u) { |
294 | Service *s = SERVICE(u); | |
44d8db9e LP |
295 | |
296 | assert(s); | |
297 | ||
a1e58e8e LP |
298 | s->pid_file = mfree(s->pid_file); |
299 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 300 | |
613b411c | 301 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 302 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 303 | s->control_command = NULL; |
867b3b7d | 304 | s->main_command = NULL; |
44d8db9e | 305 | |
37520c1b LP |
306 | exit_status_set_free(&s->restart_prevent_status); |
307 | exit_status_set_free(&s->restart_force_status); | |
308 | exit_status_set_free(&s->success_status); | |
96342de6 | 309 | |
44d8db9e LP |
310 | /* This will leak a process, but at least no memory or any of |
311 | * our resources */ | |
5e94833f LP |
312 | service_unwatch_main_pid(s); |
313 | service_unwatch_control_pid(s); | |
3e52541e | 314 | service_unwatch_pid_file(s); |
44d8db9e | 315 | |
05e343b7 | 316 | if (s->bus_name) { |
ac155bb8 | 317 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 318 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
319 | } |
320 | ||
d8ccf5fd DM |
321 | s->bus_name_owner = mfree(s->bus_name_owner); |
322 | ||
4f2d528d | 323 | service_close_socket_fd(s); |
6cf6bbc2 | 324 | service_connection_unref(s); |
4f2d528d | 325 | |
57020a3a | 326 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 327 | |
bb242b7b MO |
328 | service_stop_watchdog(s); |
329 | ||
718db961 | 330 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
a354329f LP |
331 | |
332 | service_release_resources(u); | |
718db961 LP |
333 | } |
334 | ||
2339fc93 LP |
335 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
336 | ServiceFDStore *fs = userdata; | |
337 | ||
338 | assert(e); | |
339 | assert(fs); | |
340 | ||
341 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
342 | service_fd_store_unlink(fs); | |
343 | return 0; | |
344 | } | |
345 | ||
8dd4c05b | 346 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
347 | ServiceFDStore *fs; |
348 | int r; | |
349 | ||
350 | assert(s); | |
351 | assert(fd >= 0); | |
352 | ||
353 | if (s->n_fd_store >= s->n_fd_store_max) | |
354 | return 0; | |
355 | ||
356 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
357 | r = same_fd(fs->fd, fd); | |
358 | if (r < 0) | |
359 | return r; | |
360 | if (r > 0) { | |
361 | /* Already included */ | |
362 | safe_close(fd); | |
363 | return 1; | |
364 | } | |
365 | } | |
366 | ||
367 | fs = new0(ServiceFDStore, 1); | |
368 | if (!fs) | |
369 | return -ENOMEM; | |
370 | ||
371 | fs->fd = fd; | |
372 | fs->service = s; | |
8dd4c05b | 373 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 374 | if (!fs->fdname) { |
375 | free(fs); | |
8dd4c05b | 376 | return -ENOMEM; |
17dec0f7 | 377 | } |
2339fc93 LP |
378 | |
379 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
380 | if (r < 0) { | |
8dd4c05b | 381 | free(fs->fdname); |
2339fc93 LP |
382 | free(fs); |
383 | return r; | |
384 | } | |
385 | ||
7dfbe2e3 TG |
386 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); |
387 | ||
2339fc93 LP |
388 | LIST_PREPEND(fd_store, s->fd_store, fs); |
389 | s->n_fd_store++; | |
390 | ||
391 | return 1; | |
392 | } | |
393 | ||
8dd4c05b | 394 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
395 | int r; |
396 | ||
397 | assert(s); | |
398 | ||
399 | if (fdset_size(fds) <= 0) | |
400 | return 0; | |
401 | ||
402 | while (s->n_fd_store < s->n_fd_store_max) { | |
403 | _cleanup_close_ int fd = -1; | |
404 | ||
405 | fd = fdset_steal_first(fds); | |
406 | if (fd < 0) | |
407 | break; | |
408 | ||
8dd4c05b | 409 | r = service_add_fd_store(s, fd, name); |
2339fc93 | 410 | if (r < 0) |
f2341e0a | 411 | return log_unit_error_errno(UNIT(s), r, "Couldn't add fd to fd store: %m"); |
2339fc93 | 412 | if (r > 0) { |
f2341e0a | 413 | log_unit_debug(UNIT(s), "Added fd to fd store."); |
2339fc93 LP |
414 | fd = -1; |
415 | } | |
416 | } | |
417 | ||
418 | if (fdset_size(fds) > 0) | |
4b172825 | 419 | log_unit_warning(UNIT(s), "Tried to store more fds than FileDescriptorStoreMax=%u allows, closing remaining.", s->n_fd_store_max); |
2339fc93 LP |
420 | |
421 | return 0; | |
422 | } | |
423 | ||
718db961 LP |
424 | static int service_arm_timer(Service *s, usec_t usec) { |
425 | int r; | |
426 | ||
427 | assert(s); | |
428 | ||
718db961 | 429 | if (s->timer_event_source) { |
36c16a7c | 430 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
431 | if (r < 0) |
432 | return r; | |
433 | ||
434 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
435 | } | |
436 | ||
36c16a7c LP |
437 | if (usec == USEC_INFINITY) |
438 | return 0; | |
439 | ||
7dfbe2e3 | 440 | r = sd_event_add_time( |
6a0f1f6d LP |
441 | UNIT(s)->manager->event, |
442 | &s->timer_event_source, | |
443 | CLOCK_MONOTONIC, | |
36c16a7c | 444 | usec, 0, |
6a0f1f6d | 445 | service_dispatch_timer, s); |
7dfbe2e3 TG |
446 | if (r < 0) |
447 | return r; | |
448 | ||
449 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
450 | ||
451 | return 0; | |
44d8db9e LP |
452 | } |
453 | ||
243b1432 LP |
454 | static int service_verify(Service *s) { |
455 | assert(s); | |
456 | ||
1124fe6f | 457 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
458 | return 0; |
459 | ||
96fb8242 | 460 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) { |
f2341e0a | 461 | log_unit_error(UNIT(s), "Service lacks both ExecStart= and ExecStop= setting. Refusing."); |
243b1432 LP |
462 | return -EINVAL; |
463 | } | |
464 | ||
96fb8242 | 465 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 466 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
96fb8242 LP |
467 | return -EINVAL; |
468 | } | |
469 | ||
470 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START]) { | |
f2341e0a | 471 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for RemainAfterExit=yes services. Refusing."); |
96fb8242 LP |
472 | return -EINVAL; |
473 | } | |
474 | ||
475 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 476 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6cf6bbc2 LP |
477 | return -EINVAL; |
478 | } | |
479 | ||
b0693d30 | 480 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
f2341e0a | 481 | log_unit_error(UNIT(s), "Service has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing."); |
37520c1b LP |
482 | return -EINVAL; |
483 | } | |
484 | ||
55ebf98c | 485 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 486 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
b0693d30 MW |
487 | return -EINVAL; |
488 | } | |
489 | ||
05e343b7 | 490 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 491 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
4d0e5dbd LP |
492 | return -EINVAL; |
493 | } | |
494 | ||
7e2668c6 | 495 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 496 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 497 | |
ebc2259d | 498 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
f2341e0a | 499 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
05e343b7 LP |
500 | return -EINVAL; |
501 | } | |
502 | ||
6b7e5923 PS |
503 | if (s->usb_function_descriptors && !s->usb_function_strings) |
504 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
505 | ||
506 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
507 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
508 | ||
36c16a7c LP |
509 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
510 | log_unit_warning(UNIT(s), "MaxRuntimeSec= has no effect in combination with Type=oneshot. Ignoring."); | |
511 | ||
243b1432 LP |
512 | return 0; |
513 | } | |
514 | ||
a40eb732 LP |
515 | static int service_add_default_dependencies(Service *s) { |
516 | int r; | |
517 | ||
518 | assert(s); | |
519 | ||
45f06b34 LP |
520 | if (!UNIT(s)->default_dependencies) |
521 | return 0; | |
522 | ||
a40eb732 LP |
523 | /* Add a number of automatic dependencies useful for the |
524 | * majority of services. */ | |
525 | ||
463d0d15 | 526 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
527 | /* First, pull in the really early boot stuff, and |
528 | * require it, so that we fail if we can't acquire | |
529 | * it. */ | |
530 | ||
531 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
532 | if (r < 0) | |
533 | return r; | |
534 | } else { | |
535 | ||
536 | /* In the --user instance there's no sysinit.target, | |
537 | * in that case require basic.target instead. */ | |
538 | ||
539 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); | |
540 | if (r < 0) | |
541 | return r; | |
542 | } | |
543 | ||
544 | /* Second, if the rest of the base system is in the same | |
545 | * transaction, order us after it, but do not pull it in or | |
546 | * even require it. */ | |
547 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true); | |
fccd44ec KS |
548 | if (r < 0) |
549 | return r; | |
a40eb732 | 550 | |
cb4c247d | 551 | /* Third, add us in for normal shutdown. */ |
8545f7ce | 552 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
553 | } |
554 | ||
4dfc092a LP |
555 | static void service_fix_output(Service *s) { |
556 | assert(s); | |
557 | ||
558 | /* If nothing has been explicitly configured, patch default | |
559 | * output in. If input is socket/tty we avoid this however, | |
560 | * since in that case we want output to default to the same | |
561 | * place as we read input from. */ | |
562 | ||
563 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
564 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
565 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 566 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
567 | |
568 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
569 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 570 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
571 | } |
572 | ||
45f06b34 LP |
573 | static int service_setup_bus_name(Service *s) { |
574 | int r; | |
575 | ||
576 | assert(s); | |
577 | ||
578 | if (!s->bus_name) | |
579 | return 0; | |
580 | ||
581 | if (is_kdbus_available()) { | |
582 | const char *n; | |
583 | ||
584 | n = strjoina(s->bus_name, ".busname"); | |
585 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, n, NULL, true); | |
586 | if (r < 0) | |
587 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency to .busname unit: %m"); | |
588 | ||
589 | } else { | |
590 | /* If kdbus is not available, we know the dbus socket is required, hence pull it in, and require it */ | |
591 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true); | |
592 | if (r < 0) | |
593 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
594 | } | |
595 | ||
596 | /* Regardless if kdbus is used or not, we always want to be ordered against dbus.socket if both are in the transaction. */ | |
597 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, NULL, true); | |
598 | if (r < 0) | |
92bed462 | 599 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
600 | |
601 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
602 | if (r == -EEXIST) | |
603 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
604 | if (r < 0) | |
605 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
8545f7ce LP |
610 | static int service_add_extras(Service *s) { |
611 | int r; | |
612 | ||
613 | assert(s); | |
614 | ||
615 | if (s->type == _SERVICE_TYPE_INVALID) { | |
616 | /* Figure out a type automatically */ | |
617 | if (s->bus_name) | |
618 | s->type = SERVICE_DBUS; | |
619 | else if (s->exec_command[SERVICE_EXEC_START]) | |
620 | s->type = SERVICE_SIMPLE; | |
621 | else | |
622 | s->type = SERVICE_ONESHOT; | |
623 | } | |
624 | ||
625 | /* Oneshot services have disabled start timeout by default */ | |
626 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 627 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce LP |
628 | |
629 | service_fix_output(s); | |
630 | ||
631 | r = unit_patch_contexts(UNIT(s)); | |
632 | if (r < 0) | |
633 | return r; | |
634 | ||
635 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
636 | if (r < 0) | |
637 | return r; | |
638 | ||
d79200e2 | 639 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
640 | if (r < 0) |
641 | return r; | |
642 | ||
643 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
644 | s->notify_access = NOTIFY_MAIN; | |
645 | ||
646 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) | |
647 | s->notify_access = NOTIFY_MAIN; | |
648 | ||
45f06b34 LP |
649 | r = service_add_default_dependencies(s); |
650 | if (r < 0) | |
651 | return r; | |
8545f7ce | 652 | |
45f06b34 LP |
653 | r = service_setup_bus_name(s); |
654 | if (r < 0) | |
655 | return r; | |
8545f7ce LP |
656 | |
657 | return 0; | |
658 | } | |
659 | ||
e537352b | 660 | static int service_load(Unit *u) { |
e537352b | 661 | Service *s = SERVICE(u); |
8bb2d17d | 662 | int r; |
e537352b LP |
663 | |
664 | assert(s); | |
1e2e8133 | 665 | |
5cb5a6ff | 666 | /* Load a .service file */ |
c2756a68 LP |
667 | r = unit_load_fragment(u); |
668 | if (r < 0) | |
5cb5a6ff LP |
669 | return r; |
670 | ||
23a177ef | 671 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 672 | if (u->load_state == UNIT_STUB) |
23a177ef | 673 | return -ENOENT; |
034c6ed7 | 674 | |
23a177ef | 675 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 676 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
677 | |
678 | /* We were able to load something, then let's add in | |
679 | * the dropin directories. */ | |
680 | r = unit_load_dropin(u); | |
681 | if (r < 0) | |
682 | return r; | |
683 | ||
8545f7ce LP |
684 | /* This is a new unit? Then let's add in some |
685 | * extras */ | |
686 | r = service_add_extras(s); | |
598459ce LP |
687 | if (r < 0) |
688 | return r; | |
8e274523 LP |
689 | } |
690 | ||
243b1432 | 691 | return service_verify(s); |
034c6ed7 LP |
692 | } |
693 | ||
87f0e418 | 694 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 695 | ServiceExecCommand c; |
87f0e418 | 696 | Service *s = SERVICE(u); |
47be870b | 697 | const char *prefix2; |
5cb5a6ff LP |
698 | |
699 | assert(s); | |
700 | ||
4c940960 | 701 | prefix = strempty(prefix); |
63c372cb | 702 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 703 | |
5cb5a6ff | 704 | fprintf(f, |
81a2b7ce | 705 | "%sService State: %s\n" |
f42806df LP |
706 | "%sResult: %s\n" |
707 | "%sReload Result: %s\n" | |
81a2b7ce | 708 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 709 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 710 | "%sRemainAfterExit: %s\n" |
3185a36b | 711 | "%sGuessMainPID: %s\n" |
c952c6ec | 712 | "%sType: %s\n" |
2cf3143a | 713 | "%sRestart: %s\n" |
308d72dc LP |
714 | "%sNotifyAccess: %s\n" |
715 | "%sNotifyState: %s\n", | |
81a2b7ce | 716 | prefix, service_state_to_string(s->state), |
f42806df LP |
717 | prefix, service_result_to_string(s->result), |
718 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 719 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 720 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 721 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 722 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 723 | prefix, service_type_to_string(s->type), |
2cf3143a | 724 | prefix, service_restart_to_string(s->restart), |
308d72dc LP |
725 | prefix, notify_access_to_string(s->notify_access), |
726 | prefix, notify_state_to_string(s->notify_state)); | |
5cb5a6ff | 727 | |
70123e68 LP |
728 | if (s->control_pid > 0) |
729 | fprintf(f, | |
ccd06097 ZJS |
730 | "%sControl PID: "PID_FMT"\n", |
731 | prefix, s->control_pid); | |
70123e68 LP |
732 | |
733 | if (s->main_pid > 0) | |
734 | fprintf(f, | |
ccd06097 | 735 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
736 | "%sMain PID Known: %s\n" |
737 | "%sMain PID Alien: %s\n", | |
ccd06097 | 738 | prefix, s->main_pid, |
6dfa5494 LP |
739 | prefix, yes_no(s->main_pid_known), |
740 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 741 | |
034c6ed7 LP |
742 | if (s->pid_file) |
743 | fprintf(f, | |
744 | "%sPIDFile: %s\n", | |
745 | prefix, s->pid_file); | |
746 | ||
05e343b7 LP |
747 | if (s->bus_name) |
748 | fprintf(f, | |
749 | "%sBusName: %s\n" | |
750 | "%sBus Name Good: %s\n", | |
751 | prefix, s->bus_name, | |
752 | prefix, yes_no(s->bus_name_good)); | |
753 | ||
4819ff03 | 754 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
755 | exec_context_dump(&s->exec_context, f, prefix); |
756 | ||
e537352b | 757 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 758 | |
44d8db9e LP |
759 | if (!s->exec_command[c]) |
760 | continue; | |
761 | ||
40d50879 | 762 | fprintf(f, "%s-> %s:\n", |
94f04347 | 763 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
764 | |
765 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 766 | } |
44d8db9e | 767 | |
8c47c732 LP |
768 | if (s->status_text) |
769 | fprintf(f, "%sStatus Text: %s\n", | |
770 | prefix, s->status_text); | |
a354329f | 771 | |
ece174c5 | 772 | if (s->n_fd_store_max > 0) |
a354329f LP |
773 | fprintf(f, |
774 | "%sFile Descriptor Store Max: %u\n" | |
775 | "%sFile Descriptor Store Current: %u\n", | |
776 | prefix, s->n_fd_store_max, | |
777 | prefix, s->n_fd_store); | |
5cb5a6ff LP |
778 | } |
779 | ||
c5419d42 | 780 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 781 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 782 | int r; |
5925dd3c | 783 | pid_t pid; |
034c6ed7 LP |
784 | |
785 | assert(s); | |
786 | ||
034c6ed7 | 787 | if (!s->pid_file) |
13230d5d | 788 | return -ENOENT; |
034c6ed7 | 789 | |
117dcc57 ZJS |
790 | r = read_one_line_file(s->pid_file, &k); |
791 | if (r < 0) { | |
c5419d42 | 792 | if (may_warn) |
f2341e0a | 793 | log_unit_info_errno(UNIT(s), r, "PID file %s not readable (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); |
034c6ed7 | 794 | return r; |
5375410b | 795 | } |
034c6ed7 | 796 | |
5925dd3c | 797 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
798 | if (r < 0) { |
799 | if (may_warn) | |
f2341e0a | 800 | log_unit_info_errno(UNIT(s), r, "Failed to read PID from file %s: %m", s->pid_file); |
5925dd3c | 801 | return r; |
bc41f93e | 802 | } |
406eaf93 | 803 | |
9f5650ae | 804 | if (!pid_is_alive(pid)) { |
c5419d42 | 805 | if (may_warn) |
f2341e0a | 806 | log_unit_info(UNIT(s), "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file); |
e10c9985 YS |
807 | return -ESRCH; |
808 | } | |
809 | ||
db01f8b3 MS |
810 | if (s->main_pid_known) { |
811 | if (pid == s->main_pid) | |
812 | return 0; | |
813 | ||
f2341e0a | 814 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 815 | |
db01f8b3 MS |
816 | service_unwatch_main_pid(s); |
817 | s->main_pid_known = false; | |
3a111838 | 818 | } else |
f2341e0a | 819 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 820 | |
117dcc57 ZJS |
821 | r = service_set_main_pid(s, pid); |
822 | if (r < 0) | |
16f6025e LP |
823 | return r; |
824 | ||
117dcc57 | 825 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 826 | if (r < 0) { |
5925dd3c | 827 | /* FIXME: we need to do something here */ |
f2341e0a | 828 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); |
5925dd3c | 829 | return r; |
bc41f93e | 830 | } |
034c6ed7 LP |
831 | |
832 | return 0; | |
833 | } | |
834 | ||
783e05d6 | 835 | static void service_search_main_pid(Service *s) { |
efdb0237 | 836 | pid_t pid = 0; |
4fbf50b3 LP |
837 | int r; |
838 | ||
839 | assert(s); | |
840 | ||
3185a36b LP |
841 | /* If we know it anyway, don't ever fallback to unreliable |
842 | * heuristics */ | |
4fbf50b3 | 843 | if (s->main_pid_known) |
783e05d6 | 844 | return; |
4fbf50b3 | 845 | |
3185a36b | 846 | if (!s->guess_main_pid) |
783e05d6 | 847 | return; |
3185a36b | 848 | |
4fbf50b3 LP |
849 | assert(s->main_pid <= 0); |
850 | ||
783e05d6 ZJS |
851 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
852 | return; | |
4fbf50b3 | 853 | |
f2341e0a | 854 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
855 | if (service_set_main_pid(s, pid) < 0) |
856 | return; | |
4fbf50b3 | 857 | |
117dcc57 | 858 | r = unit_watch_pid(UNIT(s), pid); |
783e05d6 | 859 | if (r < 0) |
4fbf50b3 | 860 | /* FIXME: we need to do something here */ |
f2341e0a | 861 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
862 | } |
863 | ||
034c6ed7 LP |
864 | static void service_set_state(Service *s, ServiceState state) { |
865 | ServiceState old_state; | |
e056b01d | 866 | const UnitActiveState *table; |
842129f5 | 867 | |
5cb5a6ff LP |
868 | assert(s); |
869 | ||
e056b01d LP |
870 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
871 | ||
034c6ed7 | 872 | old_state = s->state; |
5cb5a6ff | 873 | s->state = state; |
034c6ed7 | 874 | |
3a111838 MS |
875 | service_unwatch_pid_file(s); |
876 | ||
842129f5 LP |
877 | if (!IN_SET(state, |
878 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
36c16a7c | 879 | SERVICE_RUNNING, |
842129f5 | 880 | SERVICE_RELOAD, |
57614eb1 | 881 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 LP |
882 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
883 | SERVICE_AUTO_RESTART)) | |
718db961 | 884 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 885 | |
842129f5 LP |
886 | if (!IN_SET(state, |
887 | SERVICE_START, SERVICE_START_POST, | |
888 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 | 889 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 890 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 891 | service_unwatch_main_pid(s); |
867b3b7d LP |
892 | s->main_command = NULL; |
893 | } | |
034c6ed7 | 894 | |
842129f5 LP |
895 | if (!IN_SET(state, |
896 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
897 | SERVICE_RELOAD, | |
57614eb1 | 898 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 899 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 900 | service_unwatch_control_pid(s); |
034c6ed7 | 901 | s->control_command = NULL; |
a16e1123 | 902 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 903 | } |
034c6ed7 | 904 | |
a911bb9a LP |
905 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
906 | unit_unwatch_all_pids(UNIT(s)); | |
907 | ||
842129f5 LP |
908 | if (!IN_SET(state, |
909 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
910 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 LP |
911 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
912 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 913 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 914 | service_close_socket_fd(s); |
6cf6bbc2 LP |
915 | service_connection_unref(s); |
916 | } | |
4f2d528d | 917 | |
7596e9e1 | 918 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
919 | service_stop_watchdog(s); |
920 | ||
f6023656 LP |
921 | /* For the inactive states unit_notify() will trim the cgroup, |
922 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 923 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 924 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 925 | |
9cd86184 OB |
926 | /* For remain_after_exit services, let's see if we can "release" the |
927 | * hold on the console, since unit_notify() only does that in case of | |
928 | * change of state */ | |
f49650ce LP |
929 | if (state == SERVICE_EXITED && |
930 | s->remain_after_exit && | |
9cd86184 | 931 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
932 | |
933 | ExecContext *ec; | |
934 | ||
935 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
936 | if (ec && exec_context_may_touch_console(ec)) { |
937 | Manager *m = UNIT(s)->manager; | |
938 | ||
313cefa1 | 939 | m->n_on_console--; |
9cd86184 OB |
940 | if (m->n_on_console == 0) |
941 | /* unset no_console_output flag, since the console is free */ | |
942 | m->no_console_output = false; | |
943 | } | |
944 | } | |
945 | ||
e537352b | 946 | if (old_state != state) |
f2341e0a | 947 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 948 | |
e056b01d | 949 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
034c6ed7 LP |
950 | } |
951 | ||
36c16a7c LP |
952 | static usec_t service_coldplug_timeout(Service *s) { |
953 | assert(s); | |
954 | ||
955 | switch (s->deserialized_state) { | |
956 | ||
957 | case SERVICE_START_PRE: | |
958 | case SERVICE_START: | |
959 | case SERVICE_START_POST: | |
960 | case SERVICE_RELOAD: | |
961 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
962 | ||
963 | case SERVICE_RUNNING: | |
964 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
965 | ||
966 | case SERVICE_STOP: | |
967 | case SERVICE_STOP_SIGABRT: | |
968 | case SERVICE_STOP_SIGTERM: | |
969 | case SERVICE_STOP_SIGKILL: | |
970 | case SERVICE_STOP_POST: | |
971 | case SERVICE_FINAL_SIGTERM: | |
972 | case SERVICE_FINAL_SIGKILL: | |
973 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
974 | ||
975 | case SERVICE_AUTO_RESTART: | |
976 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
977 | ||
978 | default: | |
979 | return USEC_INFINITY; | |
980 | } | |
981 | } | |
982 | ||
be847e82 | 983 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
984 | Service *s = SERVICE(u); |
985 | int r; | |
986 | ||
987 | assert(s); | |
988 | assert(s->state == SERVICE_DEAD); | |
989 | ||
930d2838 LP |
990 | if (s->deserialized_state == s->state) |
991 | return 0; | |
6c12b52e | 992 | |
36c16a7c LP |
993 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
994 | if (r < 0) | |
995 | return r; | |
a911bb9a | 996 | |
930d2838 LP |
997 | if (s->main_pid > 0 && |
998 | pid_is_unwaited(s->main_pid) && | |
999 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
1000 | IN_SET(s->deserialized_state, | |
1001 | SERVICE_START, SERVICE_START_POST, | |
1002 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1003 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1004 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
1005 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1006 | if (r < 0) | |
1007 | return r; | |
1008 | } | |
bb242b7b | 1009 | |
930d2838 LP |
1010 | if (s->control_pid > 0 && |
1011 | pid_is_unwaited(s->control_pid) && | |
1012 | IN_SET(s->deserialized_state, | |
1013 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1014 | SERVICE_RELOAD, | |
1015 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1016 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1017 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1018 | if (r < 0) | |
1019 | return r; | |
a16e1123 | 1020 | } |
92c1622e | 1021 | |
930d2838 LP |
1022 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1023 | unit_watch_all_pids(UNIT(s)); | |
1024 | ||
1025 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) | |
1026 | service_start_watchdog(s); | |
1027 | ||
1028 | service_set_state(s, s->deserialized_state); | |
a16e1123 LP |
1029 | return 0; |
1030 | } | |
1031 | ||
8dd4c05b LP |
1032 | static int service_collect_fds(Service *s, int **fds, char ***fd_names) { |
1033 | _cleanup_strv_free_ char **rfd_names = NULL; | |
a354329f | 1034 | _cleanup_free_ int *rfds = NULL; |
8dd4c05b | 1035 | int rn_fds = 0, r; |
44d8db9e LP |
1036 | |
1037 | assert(s); | |
1038 | assert(fds); | |
8dd4c05b | 1039 | assert(fd_names); |
44d8db9e | 1040 | |
8dd4c05b | 1041 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1042 | |
8dd4c05b | 1043 | /* Pass the per-connection socket */ |
57020a3a | 1044 | |
8dd4c05b LP |
1045 | rfds = new(int, 1); |
1046 | if (!rfds) | |
1047 | return -ENOMEM; | |
1048 | rfds[0] = s->socket_fd; | |
57020a3a | 1049 | |
8dd4c05b LP |
1050 | rfd_names = strv_new("connection", NULL); |
1051 | if (!rfd_names) | |
1052 | return -ENOMEM; | |
44d8db9e | 1053 | |
8dd4c05b LP |
1054 | rn_fds = 1; |
1055 | } else { | |
1056 | Iterator i; | |
1057 | Unit *u; | |
44d8db9e | 1058 | |
8dd4c05b | 1059 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1060 | |
8dd4c05b LP |
1061 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
1062 | _cleanup_free_ int *cfds = NULL; | |
1063 | Socket *sock; | |
1064 | int cn_fds; | |
44d8db9e | 1065 | |
8dd4c05b LP |
1066 | if (u->type != UNIT_SOCKET) |
1067 | continue; | |
44d8db9e | 1068 | |
8dd4c05b | 1069 | sock = SOCKET(u); |
a354329f | 1070 | |
8dd4c05b LP |
1071 | cn_fds = socket_collect_fds(sock, &cfds); |
1072 | if (cn_fds < 0) | |
1073 | return cn_fds; | |
44d8db9e | 1074 | |
8dd4c05b LP |
1075 | if (cn_fds <= 0) |
1076 | continue; | |
79c7626d | 1077 | |
8dd4c05b LP |
1078 | if (!rfds) { |
1079 | rfds = cfds; | |
1080 | rn_fds = cn_fds; | |
1081 | ||
1082 | cfds = NULL; | |
1083 | } else { | |
1084 | int *t; | |
1085 | ||
1086 | t = realloc(rfds, (rn_fds + cn_fds) * sizeof(int)); | |
1087 | if (!t) | |
1088 | return -ENOMEM; | |
1089 | ||
1090 | memcpy(t + rn_fds, cfds, cn_fds * sizeof(int)); | |
1091 | ||
1092 | rfds = t; | |
1093 | rn_fds += cn_fds; | |
1094 | } | |
1095 | ||
1096 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1097 | if (r < 0) | |
1098 | return r; | |
44d8db9e LP |
1099 | } |
1100 | } | |
1101 | ||
a354329f LP |
1102 | if (s->n_fd_store > 0) { |
1103 | ServiceFDStore *fs; | |
8dd4c05b | 1104 | char **nl; |
a354329f LP |
1105 | int *t; |
1106 | ||
1107 | t = realloc(rfds, (rn_fds + s->n_fd_store) * sizeof(int)); | |
1108 | if (!t) | |
1109 | return -ENOMEM; | |
1110 | ||
1111 | rfds = t; | |
8dd4c05b LP |
1112 | |
1113 | nl = realloc(rfd_names, (rn_fds + s->n_fd_store + 1) * sizeof(char*)); | |
1114 | if (!nl) | |
1115 | return -ENOMEM; | |
1116 | ||
1117 | rfd_names = nl; | |
1118 | ||
1119 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
1120 | rfds[rn_fds] = fs->fd; | |
1121 | rfd_names[rn_fds] = strdup(strempty(fs->fdname)); | |
1122 | if (!rfd_names[rn_fds]) | |
1123 | return -ENOMEM; | |
1124 | ||
1125 | rn_fds++; | |
1126 | } | |
1127 | ||
1128 | rfd_names[rn_fds] = NULL; | |
a354329f LP |
1129 | } |
1130 | ||
44d8db9e | 1131 | *fds = rfds; |
8dd4c05b | 1132 | *fd_names = rfd_names; |
3e33402a | 1133 | |
a354329f | 1134 | rfds = NULL; |
8dd4c05b | 1135 | rfd_names = NULL; |
79c7626d LP |
1136 | |
1137 | return rn_fds; | |
44d8db9e LP |
1138 | } |
1139 | ||
81a2b7ce LP |
1140 | static int service_spawn( |
1141 | Service *s, | |
1142 | ExecCommand *c, | |
21b2ce39 | 1143 | usec_t timeout, |
81a2b7ce LP |
1144 | bool pass_fds, |
1145 | bool apply_permissions, | |
1146 | bool apply_chroot, | |
1e3ad081 | 1147 | bool apply_tty_stdin, |
ecedd90f | 1148 | bool is_control, |
81a2b7ce LP |
1149 | pid_t *_pid) { |
1150 | ||
8dd4c05b | 1151 | _cleanup_strv_free_ char **argv = NULL, **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
8dd4c05b LP |
1152 | _cleanup_free_ int *fds = NULL; |
1153 | unsigned n_fds = 0, n_env = 0; | |
4ad49000 | 1154 | const char *path; |
8dd4c05b LP |
1155 | pid_t pid; |
1156 | ||
9fa95f85 | 1157 | ExecParameters exec_params = { |
a34ceba6 LP |
1158 | .apply_permissions = apply_permissions, |
1159 | .apply_chroot = apply_chroot, | |
1160 | .apply_tty_stdin = apply_tty_stdin, | |
a34ceba6 LP |
1161 | .stdin_fd = -1, |
1162 | .stdout_fd = -1, | |
1163 | .stderr_fd = -1, | |
9fa95f85 | 1164 | }; |
034c6ed7 | 1165 | |
8dd4c05b LP |
1166 | int r; |
1167 | ||
034c6ed7 LP |
1168 | assert(s); |
1169 | assert(c); | |
1170 | assert(_pid); | |
1171 | ||
5ad096b3 LP |
1172 | (void) unit_realize_cgroup(UNIT(s)); |
1173 | if (s->reset_cpu_usage) { | |
1174 | (void) unit_reset_cpu_usage(UNIT(s)); | |
1175 | s->reset_cpu_usage = false; | |
1176 | } | |
4ad49000 | 1177 | |
613b411c LP |
1178 | r = unit_setup_exec_runtime(UNIT(s)); |
1179 | if (r < 0) | |
36c16a7c | 1180 | return r; |
613b411c | 1181 | |
6cf6bbc2 LP |
1182 | if (pass_fds || |
1183 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1184 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1185 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1186 | ||
8dd4c05b LP |
1187 | r = service_collect_fds(s, &fds, &fd_names); |
1188 | if (r < 0) | |
36c16a7c | 1189 | return r; |
6cf6bbc2 | 1190 | |
8dd4c05b | 1191 | n_fds = r; |
4f2d528d | 1192 | } |
44d8db9e | 1193 | |
36c16a7c LP |
1194 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1195 | if (r < 0) | |
1196 | return r; | |
034c6ed7 | 1197 | |
19f6d710 LP |
1198 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1199 | if (r < 0) | |
36c16a7c | 1200 | return r; |
9e2f7c11 | 1201 | |
3b1c5241 | 1202 | our_env = new0(char*, 6); |
36c16a7c LP |
1203 | if (!our_env) |
1204 | return -ENOMEM; | |
c952c6ec | 1205 | |
a158dbf1 | 1206 | if (is_control ? s->notify_access == NOTIFY_ALL : s->notify_access != NOTIFY_NONE) |
36c16a7c LP |
1207 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1208 | return -ENOMEM; | |
c952c6ec | 1209 | |
2105e76a | 1210 | if (s->main_pid > 0) |
36c16a7c LP |
1211 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1212 | return -ENOMEM; | |
2105e76a | 1213 | |
463d0d15 | 1214 | if (!MANAGER_IS_SYSTEM(UNIT(s)->manager)) |
36c16a7c LP |
1215 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) |
1216 | return -ENOMEM; | |
97ae63e2 | 1217 | |
8dd4c05b | 1218 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1219 | union sockaddr_union sa; |
1220 | socklen_t salen = sizeof(sa); | |
1221 | ||
1222 | r = getpeername(s->socket_fd, &sa.sa, &salen); | |
36c16a7c LP |
1223 | if (r < 0) |
1224 | return -errno; | |
3b1c5241 SL |
1225 | |
1226 | if (IN_SET(sa.sa.sa_family, AF_INET, AF_INET6)) { | |
1227 | _cleanup_free_ char *addr = NULL; | |
1228 | char *t; | |
1229 | int port; | |
1230 | ||
1231 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1232 | if (r < 0) | |
36c16a7c | 1233 | return r; |
3b1c5241 SL |
1234 | |
1235 | t = strappend("REMOTE_ADDR=", addr); | |
36c16a7c LP |
1236 | if (!t) |
1237 | return -ENOMEM; | |
3b1c5241 SL |
1238 | our_env[n_env++] = t; |
1239 | ||
1240 | port = sockaddr_port(&sa.sa); | |
36c16a7c LP |
1241 | if (port < 0) |
1242 | return port; | |
3b1c5241 | 1243 | |
36c16a7c LP |
1244 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1245 | return -ENOMEM; | |
3b1c5241 SL |
1246 | our_env[n_env++] = t; |
1247 | } | |
1248 | } | |
1249 | ||
97ae63e2 | 1250 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); |
36c16a7c LP |
1251 | if (!final_env) |
1252 | return -ENOMEM; | |
c952c6ec | 1253 | |
4ad49000 | 1254 | if (is_control && UNIT(s)->cgroup_path) { |
63c372cb | 1255 | path = strjoina(UNIT(s)->cgroup_path, "/control"); |
ac5b0c13 | 1256 | (void) cg_create(SYSTEMD_CGROUP_CONTROLLER, path); |
4ad49000 LP |
1257 | } else |
1258 | path = UNIT(s)->cgroup_path; | |
1259 | ||
9fa95f85 DM |
1260 | exec_params.argv = argv; |
1261 | exec_params.fds = fds; | |
8dd4c05b | 1262 | exec_params.fd_names = fd_names; |
9fa95f85 DM |
1263 | exec_params.n_fds = n_fds; |
1264 | exec_params.environment = final_env; | |
1265 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
1266 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
1267 | exec_params.cgroup_path = path; | |
a931ad47 | 1268 | exec_params.cgroup_delegate = s->cgroup_context.delegate; |
9fa95f85 | 1269 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); |
9fa95f85 | 1270 | exec_params.watchdog_usec = s->watchdog_usec; |
a34ceba6 | 1271 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1272 | if (s->type == SERVICE_IDLE) |
1273 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1274 | exec_params.stdin_fd = s->stdin_fd; |
1275 | exec_params.stdout_fd = s->stdout_fd; | |
1276 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1277 | |
f2341e0a LP |
1278 | r = exec_spawn(UNIT(s), |
1279 | c, | |
9e2f7c11 | 1280 | &s->exec_context, |
9fa95f85 | 1281 | &exec_params, |
613b411c | 1282 | s->exec_runtime, |
9e2f7c11 | 1283 | &pid); |
9e2f7c11 | 1284 | if (r < 0) |
36c16a7c | 1285 | return r; |
034c6ed7 | 1286 | |
117dcc57 ZJS |
1287 | r = unit_watch_pid(UNIT(s), pid); |
1288 | if (r < 0) | |
034c6ed7 | 1289 | /* FIXME: we need to do something here */ |
36c16a7c | 1290 | return r; |
034c6ed7 LP |
1291 | |
1292 | *_pid = pid; | |
1293 | ||
5cb5a6ff | 1294 | return 0; |
034c6ed7 LP |
1295 | } |
1296 | ||
80876c20 LP |
1297 | static int main_pid_good(Service *s) { |
1298 | assert(s); | |
1299 | ||
1300 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1301 | * don't know */ | |
1302 | ||
fc08079e | 1303 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1304 | * still valid */ |
6dfa5494 LP |
1305 | if (s->main_pid_known) { |
1306 | ||
1307 | /* If it's an alien child let's check if it is still | |
1308 | * alive ... */ | |
62220cf7 | 1309 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1310 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1311 | |
1312 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1313 | * which we really should wait for to collect exit | |
1314 | * status and code */ | |
80876c20 | 1315 | return s->main_pid > 0; |
6dfa5494 | 1316 | } |
80876c20 LP |
1317 | |
1318 | /* We don't know the pid */ | |
1319 | return -EAGAIN; | |
1320 | } | |
1321 | ||
44a6b1b6 | 1322 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1323 | assert(s); |
1324 | ||
1325 | return s->control_pid > 0; | |
1326 | } | |
1327 | ||
1328 | static int cgroup_good(Service *s) { | |
1329 | int r; | |
1330 | ||
1331 | assert(s); | |
1332 | ||
4ad49000 LP |
1333 | if (!UNIT(s)->cgroup_path) |
1334 | return 0; | |
1335 | ||
6f883237 | 1336 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1337 | if (r < 0) |
80876c20 LP |
1338 | return r; |
1339 | ||
1340 | return !r; | |
1341 | } | |
1342 | ||
a509f0e6 LP |
1343 | static bool service_shall_restart(Service *s) { |
1344 | assert(s); | |
1345 | ||
1346 | /* Don't restart after manual stops */ | |
1347 | if (s->forbid_restart) | |
1348 | return false; | |
1349 | ||
1350 | /* Never restart if this is configured as special exception */ | |
1351 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1352 | return false; | |
1353 | ||
1354 | /* Restart if the exit code/status are configured as restart triggers */ | |
1355 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1356 | return true; | |
1357 | ||
1358 | switch (s->restart) { | |
1359 | ||
1360 | case SERVICE_RESTART_NO: | |
1361 | return false; | |
1362 | ||
1363 | case SERVICE_RESTART_ALWAYS: | |
1364 | return true; | |
1365 | ||
1366 | case SERVICE_RESTART_ON_SUCCESS: | |
1367 | return s->result == SERVICE_SUCCESS; | |
1368 | ||
1369 | case SERVICE_RESTART_ON_FAILURE: | |
1370 | return s->result != SERVICE_SUCCESS; | |
1371 | ||
1372 | case SERVICE_RESTART_ON_ABNORMAL: | |
1373 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1374 | ||
1375 | case SERVICE_RESTART_ON_WATCHDOG: | |
1376 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1377 | ||
1378 | case SERVICE_RESTART_ON_ABORT: | |
1379 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1380 | ||
1381 | default: | |
1382 | assert_not_reached("unknown restart setting"); | |
1383 | } | |
1384 | } | |
1385 | ||
f42806df | 1386 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1387 | int r; |
1388 | assert(s); | |
1389 | ||
f42806df LP |
1390 | if (f != SERVICE_SUCCESS) |
1391 | s->result = f; | |
034c6ed7 | 1392 | |
0c7f15b3 MS |
1393 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1394 | ||
2928b0a8 | 1395 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1396 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
6bf0f408 | 1397 | failure_action(UNIT(s)->manager, s->failure_action, UNIT(s)->reboot_arg); |
2928b0a8 | 1398 | } |
93ae25e6 | 1399 | |
a509f0e6 | 1400 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1401 | |
36c16a7c | 1402 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
f42806df | 1403 | if (r < 0) |
034c6ed7 LP |
1404 | goto fail; |
1405 | ||
1406 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1407 | } |
034c6ed7 | 1408 | |
f2341e0a | 1409 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1410 | s->forbid_restart = false; |
1411 | ||
e66cf1a3 | 1412 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1413 | exec_runtime_destroy(s->exec_runtime); |
1414 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1415 | |
e66cf1a3 LP |
1416 | /* Also, remove the runtime directory in */ |
1417 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); | |
1418 | ||
9285c9ff LN |
1419 | /* Try to delete the pid file. At this point it will be |
1420 | * out-of-date, and some software might be confused by it, so | |
1421 | * let's remove it. */ | |
1422 | if (s->pid_file) | |
fabab190 | 1423 | (void) unlink(s->pid_file); |
9285c9ff | 1424 | |
034c6ed7 LP |
1425 | return; |
1426 | ||
1427 | fail: | |
f2341e0a | 1428 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1429 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1430 | } |
1431 | ||
f42806df | 1432 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1433 | int r; |
1434 | assert(s); | |
1435 | ||
f42806df LP |
1436 | if (f != SERVICE_SUCCESS) |
1437 | s->result = f; | |
034c6ed7 | 1438 | |
5e94833f | 1439 | service_unwatch_control_pid(s); |
a911bb9a | 1440 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1441 | |
117dcc57 ZJS |
1442 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1443 | if (s->control_command) { | |
867b3b7d LP |
1444 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1445 | ||
ecedd90f LP |
1446 | r = service_spawn(s, |
1447 | s->control_command, | |
21b2ce39 | 1448 | s->timeout_stop_usec, |
ecedd90f LP |
1449 | false, |
1450 | !s->permissions_start_only, | |
1451 | !s->root_directory_start_only, | |
1452 | true, | |
ecedd90f LP |
1453 | true, |
1454 | &s->control_pid); | |
1455 | if (r < 0) | |
034c6ed7 LP |
1456 | goto fail; |
1457 | ||
80876c20 LP |
1458 | service_set_state(s, SERVICE_STOP_POST); |
1459 | } else | |
ac84d1fb | 1460 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1461 | |
1462 | return; | |
1463 | ||
1464 | fail: | |
f2341e0a | 1465 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1466 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1467 | } |
1468 | ||
4940c0b0 LP |
1469 | static int state_to_kill_operation(ServiceState state) { |
1470 | switch (state) { | |
1471 | ||
1472 | case SERVICE_STOP_SIGABRT: | |
1473 | return KILL_ABORT; | |
1474 | ||
1475 | case SERVICE_STOP_SIGTERM: | |
1476 | case SERVICE_FINAL_SIGTERM: | |
1477 | return KILL_TERMINATE; | |
1478 | ||
1479 | case SERVICE_STOP_SIGKILL: | |
1480 | case SERVICE_FINAL_SIGKILL: | |
1481 | return KILL_KILL; | |
1482 | ||
1483 | default: | |
1484 | return _KILL_OPERATION_INVALID; | |
1485 | } | |
1486 | } | |
1487 | ||
f42806df | 1488 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1489 | int r; |
034c6ed7 LP |
1490 | |
1491 | assert(s); | |
1492 | ||
f42806df LP |
1493 | if (f != SERVICE_SUCCESS) |
1494 | s->result = f; | |
034c6ed7 | 1495 | |
a911bb9a LP |
1496 | unit_watch_all_pids(UNIT(s)); |
1497 | ||
cd2086fe LP |
1498 | r = unit_kill_context( |
1499 | UNIT(s), | |
1500 | &s->kill_context, | |
4940c0b0 | 1501 | state_to_kill_operation(state), |
cd2086fe LP |
1502 | s->main_pid, |
1503 | s->control_pid, | |
1504 | s->main_pid_alien); | |
ac84d1fb | 1505 | |
cd2086fe LP |
1506 | if (r < 0) |
1507 | goto fail; | |
034c6ed7 | 1508 | |
cd2086fe | 1509 | if (r > 0) { |
36c16a7c LP |
1510 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
1511 | if (r < 0) | |
1512 | goto fail; | |
d6ea93e3 | 1513 | |
80876c20 | 1514 | service_set_state(s, state); |
1db0db4b | 1515 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1516 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1517 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1518 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1519 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1520 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1521 | else |
f42806df | 1522 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1523 | |
1524 | return; | |
1525 | ||
1526 | fail: | |
f2341e0a | 1527 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1528 | |
a00973af | 1529 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1530 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1531 | else |
f42806df | 1532 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1533 | } |
1534 | ||
308d72dc LP |
1535 | static void service_enter_stop_by_notify(Service *s) { |
1536 | assert(s); | |
1537 | ||
1538 | unit_watch_all_pids(UNIT(s)); | |
1539 | ||
36c16a7c | 1540 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1541 | |
6041a7ee MS |
1542 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1543 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1544 | } |
1545 | ||
f42806df | 1546 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1547 | int r; |
5925dd3c | 1548 | |
034c6ed7 LP |
1549 | assert(s); |
1550 | ||
f42806df LP |
1551 | if (f != SERVICE_SUCCESS) |
1552 | s->result = f; | |
034c6ed7 | 1553 | |
5e94833f | 1554 | service_unwatch_control_pid(s); |
a911bb9a | 1555 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1556 | |
117dcc57 ZJS |
1557 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1558 | if (s->control_command) { | |
867b3b7d LP |
1559 | s->control_command_id = SERVICE_EXEC_STOP; |
1560 | ||
ecedd90f LP |
1561 | r = service_spawn(s, |
1562 | s->control_command, | |
21b2ce39 | 1563 | s->timeout_stop_usec, |
ecedd90f LP |
1564 | false, |
1565 | !s->permissions_start_only, | |
1566 | !s->root_directory_start_only, | |
1567 | false, | |
ecedd90f LP |
1568 | true, |
1569 | &s->control_pid); | |
1570 | if (r < 0) | |
034c6ed7 LP |
1571 | goto fail; |
1572 | ||
80876c20 LP |
1573 | service_set_state(s, SERVICE_STOP); |
1574 | } else | |
f42806df | 1575 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1576 | |
1577 | return; | |
1578 | ||
1579 | fail: | |
f2341e0a | 1580 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1581 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1582 | } |
1583 | ||
957c3cf9 LP |
1584 | static bool service_good(Service *s) { |
1585 | int main_pid_ok; | |
1586 | assert(s); | |
1587 | ||
1588 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1589 | return false; | |
1590 | ||
1591 | main_pid_ok = main_pid_good(s); | |
1592 | if (main_pid_ok > 0) /* It's alive */ | |
1593 | return true; | |
1594 | if (main_pid_ok == 0) /* It's dead */ | |
1595 | return false; | |
1596 | ||
1597 | /* OK, we don't know anything about the main PID, maybe | |
1598 | * because there is none. Let's check the control group | |
1599 | * instead. */ | |
1600 | ||
1601 | return cgroup_good(s) != 0; | |
1602 | } | |
1603 | ||
f42806df | 1604 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1605 | assert(s); |
1606 | ||
f42806df LP |
1607 | if (f != SERVICE_SUCCESS) |
1608 | s->result = f; | |
80876c20 | 1609 | |
089b64d5 LP |
1610 | service_unwatch_control_pid(s); |
1611 | ||
957c3cf9 | 1612 | if (service_good(s)) { |
308d72dc LP |
1613 | |
1614 | /* If there are any queued up sd_notify() | |
1615 | * notifications, process them now */ | |
1616 | if (s->notify_state == NOTIFY_RELOADING) | |
1617 | service_enter_reload_by_notify(s); | |
1618 | else if (s->notify_state == NOTIFY_STOPPING) | |
1619 | service_enter_stop_by_notify(s); | |
36c16a7c | 1620 | else { |
308d72dc | 1621 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
1622 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
1623 | } | |
308d72dc LP |
1624 | |
1625 | } else if (s->remain_after_exit) | |
80876c20 LP |
1626 | service_set_state(s, SERVICE_EXITED); |
1627 | else | |
f42806df | 1628 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1629 | } |
1630 | ||
034c6ed7 LP |
1631 | static void service_enter_start_post(Service *s) { |
1632 | int r; | |
1633 | assert(s); | |
1634 | ||
5e94833f | 1635 | service_unwatch_control_pid(s); |
842129f5 | 1636 | service_reset_watchdog(s); |
bb242b7b | 1637 | |
117dcc57 ZJS |
1638 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1639 | if (s->control_command) { | |
867b3b7d LP |
1640 | s->control_command_id = SERVICE_EXEC_START_POST; |
1641 | ||
ecedd90f LP |
1642 | r = service_spawn(s, |
1643 | s->control_command, | |
21b2ce39 | 1644 | s->timeout_start_usec, |
ecedd90f LP |
1645 | false, |
1646 | !s->permissions_start_only, | |
1647 | !s->root_directory_start_only, | |
1648 | false, | |
ecedd90f LP |
1649 | true, |
1650 | &s->control_pid); | |
1651 | if (r < 0) | |
034c6ed7 LP |
1652 | goto fail; |
1653 | ||
80876c20 LP |
1654 | service_set_state(s, SERVICE_START_POST); |
1655 | } else | |
f42806df | 1656 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1657 | |
1658 | return; | |
1659 | ||
1660 | fail: | |
f2341e0a | 1661 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1662 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1663 | } |
1664 | ||
4ad49000 LP |
1665 | static void service_kill_control_processes(Service *s) { |
1666 | char *p; | |
1667 | ||
1668 | if (!UNIT(s)->cgroup_path) | |
1669 | return; | |
1670 | ||
63c372cb | 1671 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
4ad49000 LP |
1672 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
1673 | } | |
1674 | ||
034c6ed7 | 1675 | static void service_enter_start(Service *s) { |
4ad49000 | 1676 | ExecCommand *c; |
36c16a7c | 1677 | usec_t timeout; |
034c6ed7 LP |
1678 | pid_t pid; |
1679 | int r; | |
1680 | ||
1681 | assert(s); | |
1682 | ||
41efeaec LP |
1683 | service_unwatch_control_pid(s); |
1684 | service_unwatch_main_pid(s); | |
80876c20 | 1685 | |
8f53a7b8 LP |
1686 | /* We want to ensure that nobody leaks processes from |
1687 | * START_PRE here, so let's go on a killing spree, People | |
1688 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1689 | service_kill_control_processes(s); |
8f53a7b8 | 1690 | |
867b3b7d LP |
1691 | if (s->type == SERVICE_FORKING) { |
1692 | s->control_command_id = SERVICE_EXEC_START; | |
1693 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1694 | ||
1695 | s->main_command = NULL; | |
1696 | } else { | |
1697 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1698 | s->control_command = NULL; | |
1699 | ||
1700 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1701 | } | |
34e9ba66 | 1702 | |
96fb8242 LP |
1703 | if (!c) { |
1704 | assert(s->type == SERVICE_ONESHOT); | |
1705 | service_enter_start_post(s); | |
1706 | return; | |
1707 | } | |
1708 | ||
36c16a7c LP |
1709 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
1710 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
1711 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
1712 | timeout = USEC_INFINITY; | |
1713 | else | |
1714 | timeout = s->timeout_start_usec; | |
1715 | ||
ecedd90f LP |
1716 | r = service_spawn(s, |
1717 | c, | |
36c16a7c | 1718 | timeout, |
ecedd90f LP |
1719 | true, |
1720 | true, | |
1721 | true, | |
1722 | true, | |
ecedd90f LP |
1723 | false, |
1724 | &pid); | |
1725 | if (r < 0) | |
034c6ed7 LP |
1726 | goto fail; |
1727 | ||
36c16a7c | 1728 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
1729 | /* For simple services we immediately start |
1730 | * the START_POST binaries. */ | |
1731 | ||
5925dd3c | 1732 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1733 | service_enter_start_post(s); |
1734 | ||
1735 | } else if (s->type == SERVICE_FORKING) { | |
1736 | ||
1737 | /* For forking services we wait until the start | |
1738 | * process exited. */ | |
1739 | ||
e55224ca | 1740 | s->control_pid = pid; |
80876c20 LP |
1741 | service_set_state(s, SERVICE_START); |
1742 | ||
36c16a7c | 1743 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY)) { |
7d55e835 | 1744 | |
34e9ba66 | 1745 | /* For oneshot services we wait until the start |
7d55e835 LP |
1746 | * process exited, too, but it is our main process. */ |
1747 | ||
05e343b7 | 1748 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1749 | * but wait for the bus name to appear on the |
1750 | * bus. Notify services are similar. */ | |
05e343b7 | 1751 | |
5925dd3c | 1752 | service_set_main_pid(s, pid); |
80876c20 | 1753 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1754 | } else |
1755 | assert_not_reached("Unknown service type"); | |
1756 | ||
1757 | return; | |
1758 | ||
1759 | fail: | |
f2341e0a | 1760 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
f42806df | 1761 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1762 | } |
1763 | ||
1764 | static void service_enter_start_pre(Service *s) { | |
1765 | int r; | |
1766 | ||
1767 | assert(s); | |
1768 | ||
5e94833f LP |
1769 | service_unwatch_control_pid(s); |
1770 | ||
117dcc57 ZJS |
1771 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1772 | if (s->control_command) { | |
8f53a7b8 LP |
1773 | /* Before we start anything, let's clear up what might |
1774 | * be left from previous runs. */ | |
4ad49000 | 1775 | service_kill_control_processes(s); |
8f53a7b8 | 1776 | |
867b3b7d LP |
1777 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1778 | ||
ecedd90f LP |
1779 | r = service_spawn(s, |
1780 | s->control_command, | |
21b2ce39 | 1781 | s->timeout_start_usec, |
ecedd90f LP |
1782 | false, |
1783 | !s->permissions_start_only, | |
1784 | !s->root_directory_start_only, | |
1785 | true, | |
ecedd90f LP |
1786 | true, |
1787 | &s->control_pid); | |
1788 | if (r < 0) | |
034c6ed7 LP |
1789 | goto fail; |
1790 | ||
80876c20 LP |
1791 | service_set_state(s, SERVICE_START_PRE); |
1792 | } else | |
034c6ed7 LP |
1793 | service_enter_start(s); |
1794 | ||
1795 | return; | |
1796 | ||
1797 | fail: | |
f2341e0a | 1798 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1799 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1800 | } |
1801 | ||
1802 | static void service_enter_restart(Service *s) { | |
4afd3348 | 1803 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1804 | int r; |
398ef8ba | 1805 | |
034c6ed7 LP |
1806 | assert(s); |
1807 | ||
a8bb2e65 LP |
1808 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1809 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1810 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1811 | |
36c16a7c | 1812 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 1813 | if (r < 0) |
2edfa366 | 1814 | goto fail; |
feae8adb DW |
1815 | |
1816 | return; | |
2edfa366 LP |
1817 | } |
1818 | ||
48bb5876 DW |
1819 | /* Any units that are bound to this service must also be |
1820 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1821 | * JOB_START) here so that those dependency jobs will be added | |
1822 | * as well. */ | |
4bd29fe5 | 1823 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, &error, NULL); |
48bb5876 | 1824 | if (r < 0) |
034c6ed7 LP |
1825 | goto fail; |
1826 | ||
a8bb2e65 LP |
1827 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1828 | * it will be canceled as part of the service_stop() call that | |
1829 | * is executed as part of JOB_RESTART. */ | |
1830 | ||
f2341e0a | 1831 | log_unit_debug(UNIT(s), "Scheduled restart job."); |
034c6ed7 LP |
1832 | return; |
1833 | ||
1834 | fail: | |
f2341e0a | 1835 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1836 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1837 | } |
1838 | ||
308d72dc LP |
1839 | static void service_enter_reload_by_notify(Service *s) { |
1840 | assert(s); | |
1841 | ||
36c16a7c | 1842 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc LP |
1843 | service_set_state(s, SERVICE_RELOAD); |
1844 | } | |
1845 | ||
034c6ed7 LP |
1846 | static void service_enter_reload(Service *s) { |
1847 | int r; | |
1848 | ||
1849 | assert(s); | |
1850 | ||
5e94833f | 1851 | service_unwatch_control_pid(s); |
95c906ae | 1852 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 1853 | |
117dcc57 ZJS |
1854 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1855 | if (s->control_command) { | |
867b3b7d LP |
1856 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1857 | ||
ecedd90f LP |
1858 | r = service_spawn(s, |
1859 | s->control_command, | |
21b2ce39 | 1860 | s->timeout_start_usec, |
ecedd90f LP |
1861 | false, |
1862 | !s->permissions_start_only, | |
1863 | !s->root_directory_start_only, | |
1864 | false, | |
ecedd90f LP |
1865 | true, |
1866 | &s->control_pid); | |
1867 | if (r < 0) | |
034c6ed7 LP |
1868 | goto fail; |
1869 | ||
80876c20 LP |
1870 | service_set_state(s, SERVICE_RELOAD); |
1871 | } else | |
f42806df | 1872 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1873 | |
1874 | return; | |
1875 | ||
1876 | fail: | |
f2341e0a | 1877 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
1878 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1879 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
1880 | } |
1881 | ||
f42806df | 1882 | static void service_run_next_control(Service *s) { |
36c16a7c | 1883 | usec_t timeout; |
034c6ed7 LP |
1884 | int r; |
1885 | ||
1886 | assert(s); | |
1887 | assert(s->control_command); | |
1888 | assert(s->control_command->command_next); | |
1889 | ||
34e9ba66 | 1890 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 1891 | |
34e9ba66 | 1892 | s->control_command = s->control_command->command_next; |
5e94833f LP |
1893 | service_unwatch_control_pid(s); |
1894 | ||
36c16a7c LP |
1895 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1896 | timeout = s->timeout_start_usec; | |
1897 | else | |
1898 | timeout = s->timeout_stop_usec; | |
1899 | ||
ecedd90f LP |
1900 | r = service_spawn(s, |
1901 | s->control_command, | |
36c16a7c | 1902 | timeout, |
ecedd90f LP |
1903 | false, |
1904 | !s->permissions_start_only, | |
1905 | !s->root_directory_start_only, | |
1906 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
1907 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
ecedd90f LP |
1908 | true, |
1909 | &s->control_pid); | |
1910 | if (r < 0) | |
034c6ed7 LP |
1911 | goto fail; |
1912 | ||
1913 | return; | |
1914 | ||
1915 | fail: | |
f2341e0a | 1916 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 1917 | |
80876c20 | 1918 | if (s->state == SERVICE_START_PRE) |
f42806df | 1919 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 1920 | else if (s->state == SERVICE_STOP) |
f42806df | 1921 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1922 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 1923 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 1924 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
1925 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1926 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 1927 | } else |
f42806df | 1928 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
1929 | } |
1930 | ||
f42806df | 1931 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
1932 | pid_t pid; |
1933 | int r; | |
1934 | ||
1935 | assert(s); | |
867b3b7d LP |
1936 | assert(s->main_command); |
1937 | assert(s->main_command->command_next); | |
1938 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 1939 | |
867b3b7d | 1940 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
1941 | service_unwatch_main_pid(s); |
1942 | ||
ecedd90f LP |
1943 | r = service_spawn(s, |
1944 | s->main_command, | |
21b2ce39 | 1945 | s->timeout_start_usec, |
ecedd90f LP |
1946 | true, |
1947 | true, | |
1948 | true, | |
1949 | true, | |
ecedd90f LP |
1950 | false, |
1951 | &pid); | |
1952 | if (r < 0) | |
34e9ba66 LP |
1953 | goto fail; |
1954 | ||
1955 | service_set_main_pid(s, pid); | |
1956 | ||
1957 | return; | |
1958 | ||
1959 | fail: | |
f2341e0a | 1960 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 1961 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
1962 | } |
1963 | ||
87f0e418 LP |
1964 | static int service_start(Unit *u) { |
1965 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1966 | |
1967 | assert(s); | |
1968 | ||
034c6ed7 LP |
1969 | /* We cannot fulfill this request right now, try again later |
1970 | * please! */ | |
a00973af LP |
1971 | if (IN_SET(s->state, |
1972 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1973 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
1974 | return -EAGAIN; |
1975 | ||
034c6ed7 | 1976 | /* Already on it! */ |
a00973af | 1977 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
1978 | return 0; |
1979 | ||
2e9d6c12 | 1980 | /* A service that will be restarted must be stopped first to |
7f2cddae | 1981 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 1982 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
1983 | * service should be manually restarted, not started. We |
1984 | * simply return EAGAIN here, so that any start jobs stay | |
1985 | * queued, and assume that the auto restart timer will | |
1986 | * eventually trigger the restart. */ | |
1987 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 1988 | return -EAGAIN; |
2e9d6c12 | 1989 | |
a00973af | 1990 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 1991 | |
f42806df LP |
1992 | s->result = SERVICE_SUCCESS; |
1993 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 1994 | s->main_pid_known = false; |
6dfa5494 | 1995 | s->main_pid_alien = false; |
47342320 | 1996 | s->forbid_restart = false; |
5ad096b3 | 1997 | s->reset_cpu_usage = true; |
034c6ed7 | 1998 | |
a1e58e8e | 1999 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2000 | s->status_errno = 0; |
2001 | ||
308d72dc LP |
2002 | s->notify_state = NOTIFY_UNKNOWN; |
2003 | ||
034c6ed7 | 2004 | service_enter_start_pre(s); |
82a2b6bb | 2005 | return 1; |
5cb5a6ff LP |
2006 | } |
2007 | ||
87f0e418 LP |
2008 | static int service_stop(Unit *u) { |
2009 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2010 | |
2011 | assert(s); | |
2012 | ||
a509f0e6 | 2013 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2014 | s->forbid_restart = true; |
034c6ed7 | 2015 | |
e537352b | 2016 | /* Already on it */ |
a00973af LP |
2017 | if (IN_SET(s->state, |
2018 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2019 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2020 | return 0; |
2021 | ||
f0c7b229 | 2022 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2023 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2024 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2025 | return 0; |
2026 | } | |
2027 | ||
3f6c78dc LP |
2028 | /* If there's already something running we go directly into |
2029 | * kill mode. */ | |
a00973af | 2030 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2031 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2032 | return 0; |
2033 | } | |
5cb5a6ff | 2034 | |
a00973af | 2035 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2036 | |
f42806df | 2037 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2038 | return 1; |
5cb5a6ff LP |
2039 | } |
2040 | ||
87f0e418 LP |
2041 | static int service_reload(Unit *u) { |
2042 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2043 | |
2044 | assert(s); | |
2045 | ||
80876c20 | 2046 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2047 | |
2048 | service_enter_reload(s); | |
2d018ae2 | 2049 | return 1; |
5cb5a6ff LP |
2050 | } |
2051 | ||
44a6b1b6 | 2052 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2053 | Service *s = SERVICE(u); |
034c6ed7 LP |
2054 | |
2055 | assert(s); | |
2056 | ||
2057 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2058 | } | |
2059 | ||
a16e1123 LP |
2060 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2061 | Service *s = SERVICE(u); | |
2339fc93 | 2062 | ServiceFDStore *fs; |
a34ceba6 | 2063 | int r; |
a16e1123 LP |
2064 | |
2065 | assert(u); | |
2066 | assert(f); | |
2067 | assert(fds); | |
2068 | ||
2069 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2070 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2071 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2072 | |
2073 | if (s->control_pid > 0) | |
f06db334 | 2074 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2075 | |
5925dd3c | 2076 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2077 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2078 | |
2079 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2080 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
d8ccf5fd | 2081 | unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner); |
a16e1123 | 2082 | |
a34ceba6 LP |
2083 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2084 | if (r < 0) | |
2085 | return r; | |
3a2776bc | 2086 | |
cfc4eb4c LP |
2087 | /* FIXME: There's a minor uncleanliness here: if there are |
2088 | * multiple commands attached here, we will start from the | |
2089 | * first one again */ | |
a16e1123 | 2090 | if (s->control_command_id >= 0) |
f06db334 | 2091 | unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); |
a16e1123 | 2092 | |
a34ceba6 LP |
2093 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2094 | if (r < 0) | |
2095 | return r; | |
2096 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2097 | if (r < 0) | |
2098 | return r; | |
2099 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2100 | if (r < 0) | |
2101 | return r; | |
e44da745 | 2102 | |
a34ceba6 | 2103 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2104 | if (r < 0) |
2105 | return r; | |
e44da745 | 2106 | |
2339fc93 | 2107 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2108 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2109 | int copy; |
2110 | ||
2111 | copy = fdset_put_dup(fds, fs->fd); | |
2112 | if (copy < 0) | |
2113 | return copy; | |
2114 | ||
8dd4c05b LP |
2115 | c = cescape(fs->fdname); |
2116 | ||
2117 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2118 | } |
2119 | ||
ecdbca40 | 2120 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2121 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2122 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2123 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2124 | |
799fd0fd | 2125 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2126 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2127 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2128 | } |
2129 | } | |
f06db334 | 2130 | |
36b693a6 | 2131 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2132 | |
a34ceba6 | 2133 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2134 | |
a16e1123 LP |
2135 | return 0; |
2136 | } | |
2137 | ||
2138 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2139 | Service *s = SERVICE(u); | |
2339fc93 | 2140 | int r; |
a16e1123 LP |
2141 | |
2142 | assert(u); | |
2143 | assert(key); | |
2144 | assert(value); | |
2145 | assert(fds); | |
2146 | ||
2147 | if (streq(key, "state")) { | |
2148 | ServiceState state; | |
2149 | ||
117dcc57 ZJS |
2150 | state = service_state_from_string(value); |
2151 | if (state < 0) | |
f2341e0a | 2152 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2153 | else |
2154 | s->deserialized_state = state; | |
f42806df LP |
2155 | } else if (streq(key, "result")) { |
2156 | ServiceResult f; | |
2157 | ||
2158 | f = service_result_from_string(value); | |
2159 | if (f < 0) | |
f2341e0a | 2160 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2161 | else if (f != SERVICE_SUCCESS) |
2162 | s->result = f; | |
2163 | ||
2164 | } else if (streq(key, "reload-result")) { | |
2165 | ServiceResult f; | |
2166 | ||
2167 | f = service_result_from_string(value); | |
2168 | if (f < 0) | |
f2341e0a | 2169 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2170 | else if (f != SERVICE_SUCCESS) |
2171 | s->reload_result = f; | |
a16e1123 | 2172 | |
a16e1123 | 2173 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2174 | pid_t pid; |
a16e1123 | 2175 | |
e364ad06 | 2176 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2177 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2178 | else |
e55224ca | 2179 | s->control_pid = pid; |
a16e1123 | 2180 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2181 | pid_t pid; |
a16e1123 | 2182 | |
e364ad06 | 2183 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2184 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2185 | else { |
2186 | service_set_main_pid(s, pid); | |
2187 | unit_watch_pid(UNIT(s), pid); | |
2188 | } | |
a16e1123 LP |
2189 | } else if (streq(key, "main-pid-known")) { |
2190 | int b; | |
2191 | ||
117dcc57 ZJS |
2192 | b = parse_boolean(value); |
2193 | if (b < 0) | |
f2341e0a | 2194 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2195 | else |
2196 | s->main_pid_known = b; | |
de1d4f9b WF |
2197 | } else if (streq(key, "bus-name-good")) { |
2198 | int b; | |
2199 | ||
2200 | b = parse_boolean(value); | |
2201 | if (b < 0) | |
2202 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2203 | else | |
2204 | s->bus_name_good = b; | |
d8ccf5fd DM |
2205 | } else if (streq(key, "bus-name-owner")) { |
2206 | r = free_and_strdup(&s->bus_name_owner, value); | |
2207 | if (r < 0) | |
2208 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2209 | } else if (streq(key, "status-text")) { |
2210 | char *t; | |
2211 | ||
f2341e0a LP |
2212 | r = cunescape(value, 0, &t); |
2213 | if (r < 0) | |
2214 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2215 | else { |
3a2776bc LP |
2216 | free(s->status_text); |
2217 | s->status_text = t; | |
2218 | } | |
2219 | ||
a16e1123 LP |
2220 | } else if (streq(key, "control-command")) { |
2221 | ServiceExecCommand id; | |
2222 | ||
117dcc57 ZJS |
2223 | id = service_exec_command_from_string(value); |
2224 | if (id < 0) | |
f2341e0a | 2225 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
a16e1123 LP |
2226 | else { |
2227 | s->control_command_id = id; | |
2228 | s->control_command = s->exec_command[id]; | |
2229 | } | |
2230 | } else if (streq(key, "socket-fd")) { | |
2231 | int fd; | |
2232 | ||
2233 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2234 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2235 | else { |
574634bc | 2236 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2237 | s->socket_fd = fdset_remove(fds, fd); |
2238 | } | |
2339fc93 | 2239 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2240 | const char *fdv; |
2241 | size_t pf; | |
2339fc93 LP |
2242 | int fd; |
2243 | ||
8dd4c05b LP |
2244 | pf = strcspn(value, WHITESPACE); |
2245 | fdv = strndupa(value, pf); | |
2246 | ||
2247 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2248 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2249 | else { |
8dd4c05b LP |
2250 | _cleanup_free_ char *t = NULL; |
2251 | const char *fdn; | |
2252 | ||
2253 | fdn = value + pf; | |
2254 | fdn += strspn(fdn, WHITESPACE); | |
2255 | (void) cunescape(fdn, 0, &t); | |
2256 | ||
2257 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2258 | if (r < 0) |
f2341e0a | 2259 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
2339fc93 LP |
2260 | else if (r > 0) |
2261 | fdset_remove(fds, fd); | |
2262 | } | |
2263 | ||
ecdbca40 LP |
2264 | } else if (streq(key, "main-exec-status-pid")) { |
2265 | pid_t pid; | |
2266 | ||
e364ad06 | 2267 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2268 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2269 | else |
2270 | s->main_exec_status.pid = pid; | |
2271 | } else if (streq(key, "main-exec-status-code")) { | |
2272 | int i; | |
2273 | ||
e364ad06 | 2274 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2275 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2276 | else |
2277 | s->main_exec_status.code = i; | |
2278 | } else if (streq(key, "main-exec-status-status")) { | |
2279 | int i; | |
2280 | ||
e364ad06 | 2281 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2282 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2283 | else |
2284 | s->main_exec_status.status = i; | |
799fd0fd LP |
2285 | } else if (streq(key, "main-exec-status-start")) |
2286 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2287 | else if (streq(key, "main-exec-status-exit")) | |
2288 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2289 | else if (streq(key, "watchdog-timestamp")) |
2290 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2291 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2292 | int b; |
2293 | ||
2294 | b = parse_boolean(value); | |
2295 | if (b < 0) | |
f2341e0a | 2296 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2297 | else |
2298 | s->forbid_restart = b; | |
a34ceba6 LP |
2299 | } else if (streq(key, "stdin-fd")) { |
2300 | int fd; | |
2301 | ||
2302 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2303 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2304 | else { | |
2305 | asynchronous_close(s->stdin_fd); | |
2306 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2307 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2308 | } |
2309 | } else if (streq(key, "stdout-fd")) { | |
2310 | int fd; | |
2311 | ||
2312 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2313 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2314 | else { | |
2315 | asynchronous_close(s->stdout_fd); | |
2316 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2317 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2318 | } |
2319 | } else if (streq(key, "stderr-fd")) { | |
2320 | int fd; | |
2321 | ||
2322 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2323 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2324 | else { | |
2325 | asynchronous_close(s->stderr_fd); | |
2326 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2327 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 2328 | } |
c17ec25e | 2329 | } else |
f2341e0a | 2330 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2331 | |
2332 | return 0; | |
2333 | } | |
2334 | ||
44a6b1b6 | 2335 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2336 | const UnitActiveState *table; |
2337 | ||
87f0e418 | 2338 | assert(u); |
5cb5a6ff | 2339 | |
e056b01d LP |
2340 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2341 | ||
2342 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2343 | } |
2344 | ||
10a94420 LP |
2345 | static const char *service_sub_state_to_string(Unit *u) { |
2346 | assert(u); | |
2347 | ||
2348 | return service_state_to_string(SERVICE(u)->state); | |
2349 | } | |
2350 | ||
701cc384 LP |
2351 | static bool service_check_gc(Unit *u) { |
2352 | Service *s = SERVICE(u); | |
2353 | ||
2354 | assert(s); | |
2355 | ||
6d55002a LP |
2356 | /* Never clean up services that still have a process around, |
2357 | * even if the service is formally dead. */ | |
2358 | if (cgroup_good(s) > 0 || | |
2359 | main_pid_good(s) > 0 || | |
2360 | control_pid_good(s) > 0) | |
2361 | return true; | |
2362 | ||
6d55002a LP |
2363 | return false; |
2364 | } | |
2365 | ||
3a111838 MS |
2366 | static int service_retry_pid_file(Service *s) { |
2367 | int r; | |
2368 | ||
2369 | assert(s->pid_file); | |
2370 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2371 | ||
2372 | r = service_load_pid_file(s, false); | |
2373 | if (r < 0) | |
2374 | return r; | |
2375 | ||
2376 | service_unwatch_pid_file(s); | |
2377 | ||
f42806df | 2378 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2379 | return 0; |
2380 | } | |
2381 | ||
2382 | static int service_watch_pid_file(Service *s) { | |
2383 | int r; | |
2384 | ||
f2341e0a | 2385 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2386 | |
718db961 | 2387 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2388 | if (r < 0) |
2389 | goto fail; | |
2390 | ||
2391 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2392 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2393 | service_retry_pid_file(s); |
2394 | ||
2395 | return 0; | |
2396 | fail: | |
f2341e0a | 2397 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2398 | service_unwatch_pid_file(s); |
2399 | return r; | |
2400 | } | |
2401 | ||
2402 | static int service_demand_pid_file(Service *s) { | |
2403 | PathSpec *ps; | |
2404 | ||
2405 | assert(s->pid_file); | |
2406 | assert(!s->pid_file_pathspec); | |
2407 | ||
2408 | ps = new0(PathSpec, 1); | |
2409 | if (!ps) | |
2410 | return -ENOMEM; | |
2411 | ||
718db961 | 2412 | ps->unit = UNIT(s); |
3a111838 MS |
2413 | ps->path = strdup(s->pid_file); |
2414 | if (!ps->path) { | |
2415 | free(ps); | |
2416 | return -ENOMEM; | |
2417 | } | |
2418 | ||
2419 | path_kill_slashes(ps->path); | |
2420 | ||
2421 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2422 | * keep their PID file open all the time. */ | |
2423 | ps->type = PATH_MODIFIED; | |
2424 | ps->inotify_fd = -1; | |
2425 | ||
2426 | s->pid_file_pathspec = ps; | |
2427 | ||
2428 | return service_watch_pid_file(s); | |
2429 | } | |
2430 | ||
718db961 | 2431 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2432 | PathSpec *p = userdata; |
2433 | Service *s; | |
2434 | ||
2435 | assert(p); | |
2436 | ||
2437 | s = SERVICE(p->unit); | |
3a111838 MS |
2438 | |
2439 | assert(s); | |
2440 | assert(fd >= 0); | |
2441 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2442 | assert(s->pid_file_pathspec); | |
57020a3a | 2443 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2444 | |
f2341e0a | 2445 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2446 | |
e14c2802 | 2447 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2448 | goto fail; |
2449 | ||
2450 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2451 | return 0; |
3a111838 MS |
2452 | |
2453 | if (service_watch_pid_file(s) < 0) | |
2454 | goto fail; | |
2455 | ||
718db961 LP |
2456 | return 0; |
2457 | ||
3a111838 MS |
2458 | fail: |
2459 | service_unwatch_pid_file(s); | |
f42806df | 2460 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2461 | return 0; |
3a111838 MS |
2462 | } |
2463 | ||
a911bb9a LP |
2464 | static void service_notify_cgroup_empty_event(Unit *u) { |
2465 | Service *s = SERVICE(u); | |
2466 | ||
2467 | assert(u); | |
2468 | ||
f2341e0a | 2469 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2470 | |
2471 | switch (s->state) { | |
2472 | ||
2473 | /* Waiting for SIGCHLD is usually more interesting, | |
2474 | * because it includes return codes/signals. Which is | |
2475 | * why we ignore the cgroup events for most cases, | |
2476 | * except when we don't know pid which to expect the | |
2477 | * SIGCHLD for. */ | |
2478 | ||
2479 | case SERVICE_START: | |
2480 | case SERVICE_START_POST: | |
2481 | /* If we were hoping for the daemon to write its PID file, | |
2482 | * we can give up now. */ | |
2483 | if (s->pid_file_pathspec) { | |
f2341e0a | 2484 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2485 | |
a911bb9a LP |
2486 | service_unwatch_pid_file(s); |
2487 | if (s->state == SERVICE_START) | |
2488 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); | |
2489 | else | |
2490 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); | |
2491 | } | |
2492 | break; | |
2493 | ||
2494 | case SERVICE_RUNNING: | |
2495 | /* service_enter_running() will figure out what to do */ | |
2496 | service_enter_running(s, SERVICE_SUCCESS); | |
2497 | break; | |
2498 | ||
db2cb23b | 2499 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2500 | case SERVICE_STOP_SIGTERM: |
2501 | case SERVICE_STOP_SIGKILL: | |
2502 | ||
2503 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2504 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2505 | ||
2506 | break; | |
2507 | ||
2508 | case SERVICE_STOP_POST: | |
2509 | case SERVICE_FINAL_SIGTERM: | |
2510 | case SERVICE_FINAL_SIGKILL: | |
2511 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2512 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2513 | ||
2514 | break; | |
2515 | ||
2516 | default: | |
2517 | ; | |
2518 | } | |
2519 | } | |
2520 | ||
87f0e418 LP |
2521 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2522 | Service *s = SERVICE(u); | |
f42806df | 2523 | ServiceResult f; |
5cb5a6ff LP |
2524 | |
2525 | assert(s); | |
034c6ed7 LP |
2526 | assert(pid >= 0); |
2527 | ||
96342de6 LN |
2528 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2529 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2530 | f = SERVICE_SUCCESS; |
2531 | else if (code == CLD_EXITED) | |
2532 | f = SERVICE_FAILURE_EXIT_CODE; | |
2533 | else if (code == CLD_KILLED) | |
2534 | f = SERVICE_FAILURE_SIGNAL; | |
2535 | else if (code == CLD_DUMPED) | |
2536 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2537 | else |
cfc4eb4c | 2538 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2539 | |
2540 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2541 | /* Forking services may occasionally move to a new PID. |
2542 | * As long as they update the PID file before exiting the old | |
2543 | * PID, they're fine. */ | |
5375410b | 2544 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2545 | return; |
034c6ed7 | 2546 | |
034c6ed7 | 2547 | s->main_pid = 0; |
6ea832a2 | 2548 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2549 | |
867b3b7d | 2550 | if (s->main_command) { |
fbeefb45 LP |
2551 | /* If this is not a forking service than the |
2552 | * main process got started and hence we copy | |
2553 | * the exit status so that it is recorded both | |
2554 | * as main and as control process exit | |
2555 | * status */ | |
2556 | ||
867b3b7d | 2557 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2558 | |
867b3b7d | 2559 | if (s->main_command->ignore) |
f42806df | 2560 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2561 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2562 | ||
2563 | /* If this is a forked process, then we should | |
2564 | * ignore the return value if this was | |
2565 | * configured for the starter process */ | |
2566 | ||
2567 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2568 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2569 | } |
2570 | ||
f2341e0a LP |
2571 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2572 | LOG_UNIT_ID(u), | |
2573 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", | |
2574 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2575 | strna(code == CLD_EXITED |
2576 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2577 | : signal_to_string(status))), | |
f2341e0a LP |
2578 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2579 | "EXIT_STATUS=%i", status, | |
2580 | NULL); | |
f42806df LP |
2581 | |
2582 | if (f != SERVICE_SUCCESS) | |
2583 | s->result = f; | |
034c6ed7 | 2584 | |
867b3b7d LP |
2585 | if (s->main_command && |
2586 | s->main_command->command_next && | |
f42806df | 2587 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2588 | |
34e9ba66 LP |
2589 | /* There is another command to * |
2590 | * execute, so let's do that. */ | |
034c6ed7 | 2591 | |
f2341e0a | 2592 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2593 | service_run_next_main(s); |
034c6ed7 | 2594 | |
34e9ba66 LP |
2595 | } else { |
2596 | ||
2597 | /* The service exited, so the service is officially | |
2598 | * gone. */ | |
867b3b7d | 2599 | s->main_command = NULL; |
34e9ba66 LP |
2600 | |
2601 | switch (s->state) { | |
2602 | ||
2603 | case SERVICE_START_POST: | |
2604 | case SERVICE_RELOAD: | |
2605 | case SERVICE_STOP: | |
2606 | /* Need to wait until the operation is | |
2607 | * done */ | |
c4653a4d | 2608 | break; |
7d55e835 | 2609 | |
34e9ba66 LP |
2610 | case SERVICE_START: |
2611 | if (s->type == SERVICE_ONESHOT) { | |
2612 | /* This was our main goal, so let's go on */ | |
f42806df | 2613 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2614 | service_enter_start_post(s); |
2615 | else | |
f42806df | 2616 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2617 | break; |
34e9ba66 | 2618 | } |
034c6ed7 | 2619 | |
bfba3256 LP |
2620 | /* Fall through */ |
2621 | ||
34e9ba66 | 2622 | case SERVICE_RUNNING: |
f42806df | 2623 | service_enter_running(s, f); |
34e9ba66 | 2624 | break; |
034c6ed7 | 2625 | |
db2cb23b | 2626 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
2627 | case SERVICE_STOP_SIGTERM: |
2628 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2629 | |
34e9ba66 | 2630 | if (!control_pid_good(s)) |
f42806df | 2631 | service_enter_stop_post(s, f); |
5cb5a6ff | 2632 | |
34e9ba66 LP |
2633 | /* If there is still a control process, wait for that first */ |
2634 | break; | |
2635 | ||
bf108e55 LP |
2636 | case SERVICE_STOP_POST: |
2637 | case SERVICE_FINAL_SIGTERM: | |
2638 | case SERVICE_FINAL_SIGKILL: | |
2639 | ||
2640 | if (!control_pid_good(s)) | |
2641 | service_enter_dead(s, f, true); | |
2642 | break; | |
2643 | ||
34e9ba66 LP |
2644 | default: |
2645 | assert_not_reached("Uh, main process died at wrong time."); | |
2646 | } | |
034c6ed7 | 2647 | } |
5cb5a6ff | 2648 | |
034c6ed7 | 2649 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2650 | s->control_pid = 0; |
2651 | ||
b708e7ce | 2652 | if (s->control_command) { |
8bb2d17d | 2653 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2654 | |
b708e7ce | 2655 | if (s->control_command->ignore) |
f42806df | 2656 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2657 | } |
2658 | ||
f2341e0a LP |
2659 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
2660 | "Control process exited, code=%s status=%i", | |
2661 | sigchld_code_to_string(code), status); | |
f42806df LP |
2662 | |
2663 | if (f != SERVICE_SUCCESS) | |
2664 | s->result = f; | |
034c6ed7 | 2665 | |
88f3e0c9 LP |
2666 | /* Immediately get rid of the cgroup, so that the |
2667 | * kernel doesn't delay the cgroup empty messages for | |
2668 | * the service cgroup any longer than necessary */ | |
4ad49000 | 2669 | service_kill_control_processes(s); |
88f3e0c9 | 2670 | |
34e9ba66 LP |
2671 | if (s->control_command && |
2672 | s->control_command->command_next && | |
f42806df | 2673 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
2674 | |
2675 | /* There is another command to * | |
2676 | * execute, so let's do that. */ | |
2677 | ||
f2341e0a | 2678 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 2679 | service_run_next_control(s); |
034c6ed7 | 2680 | |
80876c20 | 2681 | } else { |
034c6ed7 LP |
2682 | /* No further commands for this step, so let's |
2683 | * figure out what to do next */ | |
2684 | ||
a16e1123 LP |
2685 | s->control_command = NULL; |
2686 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2687 | ||
f2341e0a | 2688 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 2689 | |
034c6ed7 LP |
2690 | switch (s->state) { |
2691 | ||
2692 | case SERVICE_START_PRE: | |
f42806df | 2693 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
2694 | service_enter_start(s); |
2695 | else | |
f42806df | 2696 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
2697 | break; |
2698 | ||
2699 | case SERVICE_START: | |
bfba3256 LP |
2700 | if (s->type != SERVICE_FORKING) |
2701 | /* Maybe spurious event due to a reload that changed the type? */ | |
2702 | break; | |
034c6ed7 | 2703 | |
f42806df LP |
2704 | if (f != SERVICE_SUCCESS) { |
2705 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
2706 | break; |
2707 | } | |
034c6ed7 | 2708 | |
3a111838 | 2709 | if (s->pid_file) { |
f42806df LP |
2710 | bool has_start_post; |
2711 | int r; | |
2712 | ||
3a111838 MS |
2713 | /* Let's try to load the pid file here if we can. |
2714 | * The PID file might actually be created by a START_POST | |
2715 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
2716 | |
2717 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
2718 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
2719 | if (!has_start_post && r < 0) { |
2720 | r = service_demand_pid_file(s); | |
2721 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2722 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2723 | break; |
2724 | } | |
034c6ed7 | 2725 | } else |
783e05d6 | 2726 | service_search_main_pid(s); |
034c6ed7 | 2727 | |
3a111838 | 2728 | service_enter_start_post(s); |
034c6ed7 LP |
2729 | break; |
2730 | ||
2731 | case SERVICE_START_POST: | |
f42806df | 2732 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 2733 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 2734 | break; |
034c6ed7 LP |
2735 | } |
2736 | ||
2096e009 | 2737 | if (s->pid_file) { |
f42806df LP |
2738 | int r; |
2739 | ||
2740 | r = service_load_pid_file(s, true); | |
2096e009 MS |
2741 | if (r < 0) { |
2742 | r = service_demand_pid_file(s); | |
2743 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2744 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
2745 | break; |
2746 | } | |
2747 | } else | |
783e05d6 | 2748 | service_search_main_pid(s); |
2096e009 | 2749 | |
f42806df | 2750 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 2751 | break; |
034c6ed7 LP |
2752 | |
2753 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
2754 | if (f == SERVICE_SUCCESS) |
2755 | if (service_load_pid_file(s, true) < 0) | |
2756 | service_search_main_pid(s); | |
3185a36b | 2757 | |
f42806df LP |
2758 | s->reload_result = f; |
2759 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2760 | break; |
2761 | ||
2762 | case SERVICE_STOP: | |
f42806df | 2763 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
2764 | break; |
2765 | ||
db2cb23b | 2766 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
2767 | case SERVICE_STOP_SIGTERM: |
2768 | case SERVICE_STOP_SIGKILL: | |
2769 | if (main_pid_good(s) <= 0) | |
f42806df | 2770 | service_enter_stop_post(s, f); |
034c6ed7 LP |
2771 | |
2772 | /* If there is still a service | |
2773 | * process around, wait until | |
2774 | * that one quit, too */ | |
2775 | break; | |
2776 | ||
2777 | case SERVICE_STOP_POST: | |
2778 | case SERVICE_FINAL_SIGTERM: | |
2779 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
2780 | if (main_pid_good(s) <= 0) |
2781 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
2782 | break; |
2783 | ||
2784 | default: | |
2785 | assert_not_reached("Uh, control process died at wrong time."); | |
2786 | } | |
2787 | } | |
8c47c732 | 2788 | } |
c4e2ceae LP |
2789 | |
2790 | /* Notify clients about changed exit status */ | |
2791 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
2792 | |
2793 | /* We got one SIGCHLD for the service, let's watch all | |
2794 | * processes that are now running of the service, and watch | |
2795 | * that. Among the PIDs we then watch will be children | |
2796 | * reassigned to us, which hopefully allows us to identify | |
2797 | * when all children are gone */ | |
2798 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
2799 | unit_watch_all_pids(u); | |
2800 | ||
2801 | /* If the PID set is empty now, then let's finish this off */ | |
2802 | if (set_isempty(u->pids)) | |
2803 | service_notify_cgroup_empty_event(u); | |
034c6ed7 LP |
2804 | } |
2805 | ||
718db961 LP |
2806 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2807 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
2808 | |
2809 | assert(s); | |
718db961 | 2810 | assert(source == s->timer_event_source); |
034c6ed7 LP |
2811 | |
2812 | switch (s->state) { | |
2813 | ||
2814 | case SERVICE_START_PRE: | |
2815 | case SERVICE_START: | |
f2341e0a | 2816 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
f42806df | 2817 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
2818 | break; |
2819 | ||
034c6ed7 | 2820 | case SERVICE_START_POST: |
f2341e0a | 2821 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 2822 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2823 | break; |
2824 | ||
36c16a7c LP |
2825 | case SERVICE_RUNNING: |
2826 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
2827 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
2828 | break; | |
2829 | ||
e2f3b44c | 2830 | case SERVICE_RELOAD: |
089b64d5 | 2831 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
478b6192 | 2832 | service_kill_control_processes(s); |
f42806df LP |
2833 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
2834 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
2835 | break; |
2836 | ||
034c6ed7 | 2837 | case SERVICE_STOP: |
f2341e0a | 2838 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 2839 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2840 | break; |
2841 | ||
db2cb23b | 2842 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 2843 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 2844 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
2845 | break; |
2846 | ||
034c6ed7 | 2847 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 2848 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2849 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 2850 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2851 | } else { |
f2341e0a | 2852 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 2853 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
2854 | } |
2855 | ||
034c6ed7 LP |
2856 | break; |
2857 | ||
2858 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 2859 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
2860 | * Must be something we cannot kill, so let's just be |
2861 | * weirded out and continue */ | |
2862 | ||
f2341e0a | 2863 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 2864 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2865 | break; |
2866 | ||
2867 | case SERVICE_STOP_POST: | |
f2341e0a | 2868 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 2869 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2870 | break; |
2871 | ||
2872 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 2873 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2874 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 2875 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2876 | } else { |
f2341e0a | 2877 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 2878 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
2879 | } |
2880 | ||
034c6ed7 LP |
2881 | break; |
2882 | ||
2883 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 2884 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 2885 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
2886 | break; |
2887 | ||
2888 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 2889 | log_unit_info(UNIT(s), |
ef417cfd | 2890 | s->restart_usec > 0 ? |
f2341e0a LP |
2891 | "Service hold-off time over, scheduling restart." : |
2892 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
2893 | service_enter_restart(s); |
2894 | break; | |
2895 | ||
2896 | default: | |
2897 | assert_not_reached("Timeout at wrong time."); | |
2898 | } | |
718db961 LP |
2899 | |
2900 | return 0; | |
2901 | } | |
2902 | ||
2903 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
2904 | Service *s = SERVICE(userdata); | |
a7850c7d | 2905 | char t[FORMAT_TIMESPAN_MAX]; |
718db961 LP |
2906 | |
2907 | assert(s); | |
2908 | assert(source == s->watchdog_event_source); | |
2909 | ||
f2341e0a | 2910 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
a7850c7d | 2911 | format_timespan(t, sizeof(t), s->watchdog_usec, 1)); |
8bb2d17d | 2912 | |
db2cb23b | 2913 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 2914 | |
718db961 | 2915 | return 0; |
5cb5a6ff LP |
2916 | } |
2917 | ||
a354329f | 2918 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 2919 | Service *s = SERVICE(u); |
308d72dc | 2920 | _cleanup_free_ char *cc = NULL; |
30b5275a | 2921 | bool notify_dbus = false; |
308d72dc | 2922 | const char *e; |
8c47c732 LP |
2923 | |
2924 | assert(u); | |
2925 | ||
308d72dc | 2926 | cc = strv_join(tags, ", "); |
da13d4d2 | 2927 | |
c952c6ec | 2928 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 2929 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 2930 | return; |
34959677 | 2931 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 2932 | if (s->main_pid != 0) |
f2341e0a | 2933 | 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 | 2934 | else |
f2341e0a | 2935 | 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 | 2936 | return; |
34959677 TG |
2937 | } else |
2938 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 2939 | |
8c47c732 | 2940 | /* Interpret MAINPID= */ |
28849dba | 2941 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 2942 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 2943 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 2944 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
8c47c732 | 2945 | else { |
5925dd3c | 2946 | service_set_main_pid(s, pid); |
7400b9d2 | 2947 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 2948 | notify_dbus = true; |
8c47c732 LP |
2949 | } |
2950 | } | |
2951 | ||
308d72dc LP |
2952 | /* Interpret RELOADING= */ |
2953 | if (strv_find(tags, "RELOADING=1")) { | |
2954 | ||
308d72dc LP |
2955 | s->notify_state = NOTIFY_RELOADING; |
2956 | ||
2957 | if (s->state == SERVICE_RUNNING) | |
2958 | service_enter_reload_by_notify(s); | |
2959 | ||
2960 | notify_dbus = true; | |
2961 | } | |
2962 | ||
8c47c732 | 2963 | /* Interpret READY= */ |
308d72dc LP |
2964 | if (strv_find(tags, "READY=1")) { |
2965 | ||
308d72dc LP |
2966 | s->notify_state = NOTIFY_READY; |
2967 | ||
2968 | /* Type=notify services inform us about completed | |
2969 | * initialization with READY=1 */ | |
2970 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
2971 | service_enter_start_post(s); | |
2972 | ||
2973 | /* Sending READY=1 while we are reloading informs us | |
2974 | * that the reloading is complete */ | |
2975 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
2976 | service_enter_running(s, SERVICE_SUCCESS); | |
2977 | ||
2978 | notify_dbus = true; | |
2979 | } | |
2980 | ||
2981 | /* Interpret STOPPING= */ | |
2982 | if (strv_find(tags, "STOPPING=1")) { | |
2983 | ||
308d72dc LP |
2984 | s->notify_state = NOTIFY_STOPPING; |
2985 | ||
2986 | if (s->state == SERVICE_RUNNING) | |
2987 | service_enter_stop_by_notify(s); | |
2988 | ||
30b5275a | 2989 | notify_dbus = true; |
8c47c732 LP |
2990 | } |
2991 | ||
2992 | /* Interpret STATUS= */ | |
28849dba | 2993 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 2994 | if (e) { |
28849dba | 2995 | _cleanup_free_ char *t = NULL; |
8c47c732 | 2996 | |
28849dba LP |
2997 | if (!isempty(e)) { |
2998 | if (!utf8_is_valid(e)) | |
f2341e0a | 2999 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 3000 | else { |
28849dba LP |
3001 | t = strdup(e); |
3002 | if (!t) | |
3003 | log_oom(); | |
3a2776bc | 3004 | } |
28849dba | 3005 | } |
8c47c732 | 3006 | |
30b5275a | 3007 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3008 | |
3a2776bc LP |
3009 | free(s->status_text); |
3010 | s->status_text = t; | |
28849dba LP |
3011 | t = NULL; |
3012 | ||
30b5275a | 3013 | notify_dbus = true; |
28849dba | 3014 | } |
8c47c732 | 3015 | } |
842129f5 | 3016 | |
4774e357 | 3017 | /* Interpret ERRNO= */ |
28849dba | 3018 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3019 | if (e) { |
3020 | int status_errno; | |
3021 | ||
28849dba | 3022 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3023 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3024 | else { |
4774e357 MAA |
3025 | if (s->status_errno != status_errno) { |
3026 | s->status_errno = status_errno; | |
3027 | notify_dbus = true; | |
3028 | } | |
3029 | } | |
3030 | } | |
3031 | ||
6f285378 | 3032 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3033 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3034 | service_reset_watchdog(s); |
c4e2ceae | 3035 | |
8dd4c05b LP |
3036 | if (strv_find(tags, "FDSTORE=1")) { |
3037 | const char *name; | |
3038 | ||
3039 | name = strv_find_startswith(tags, "FDNAME="); | |
3040 | if (name && !fdname_is_valid(name)) { | |
3041 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3042 | name = NULL; | |
3043 | } | |
3044 | ||
3045 | service_add_fd_store_set(s, fds, name); | |
3046 | } | |
a354329f | 3047 | |
c4e2ceae | 3048 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3049 | if (notify_dbus) |
3050 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3051 | } |
3052 | ||
7a7821c8 | 3053 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 3054 | Service *s = SERVICE(u); |
7a7821c8 | 3055 | uint64_t t; |
68db7a3b ZJS |
3056 | int r; |
3057 | ||
3058 | if (!s->timer_event_source) | |
3059 | return 0; | |
3060 | ||
7a7821c8 | 3061 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
3062 | if (r < 0) |
3063 | return r; | |
7a7821c8 LP |
3064 | if (t == USEC_INFINITY) |
3065 | return 0; | |
68db7a3b | 3066 | |
7a7821c8 | 3067 | *timeout = t; |
68db7a3b ZJS |
3068 | return 1; |
3069 | } | |
3070 | ||
05e343b7 LP |
3071 | static void service_bus_name_owner_change( |
3072 | Unit *u, | |
3073 | const char *name, | |
3074 | const char *old_owner, | |
3075 | const char *new_owner) { | |
3076 | ||
3077 | Service *s = SERVICE(u); | |
718db961 | 3078 | int r; |
05e343b7 LP |
3079 | |
3080 | assert(s); | |
3081 | assert(name); | |
3082 | ||
3083 | assert(streq(s->bus_name, name)); | |
3084 | assert(old_owner || new_owner); | |
3085 | ||
3086 | if (old_owner && new_owner) | |
f2341e0a | 3087 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3088 | else if (old_owner) |
f2341e0a | 3089 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3090 | else |
f2341e0a | 3091 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3092 | |
3093 | s->bus_name_good = !!new_owner; | |
3094 | ||
d8ccf5fd DM |
3095 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
3096 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
3097 | if (r < 0) { | |
3098 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
3099 | return; | |
3100 | } | |
3101 | ||
05e343b7 LP |
3102 | if (s->type == SERVICE_DBUS) { |
3103 | ||
3104 | /* service_enter_running() will figure out what to | |
3105 | * do */ | |
3106 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3107 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3108 | else if (s->state == SERVICE_START && new_owner) |
3109 | service_enter_start_post(s); | |
3110 | ||
3111 | } else if (new_owner && | |
3112 | s->main_pid <= 0 && | |
3113 | (s->state == SERVICE_START || | |
3114 | s->state == SERVICE_START_POST || | |
3115 | s->state == SERVICE_RUNNING || | |
3116 | s->state == SERVICE_RELOAD)) { | |
3117 | ||
4afd3348 | 3118 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 3119 | pid_t pid; |
05e343b7 | 3120 | |
718db961 | 3121 | /* Try to acquire PID from bus service */ |
05e343b7 | 3122 | |
056f95d0 | 3123 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3124 | if (r >= 0) |
3125 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3126 | if (r >= 0) { |
f2341e0a | 3127 | log_unit_debug(u, "D-Bus name %s is now owned by process %u", name, (unsigned) pid); |
05e343b7 | 3128 | |
718db961 LP |
3129 | service_set_main_pid(s, pid); |
3130 | unit_watch_pid(UNIT(s), pid); | |
3131 | } | |
7400b9d2 | 3132 | } |
05e343b7 LP |
3133 | } |
3134 | ||
16115b0a | 3135 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3136 | _cleanup_free_ char *peer = NULL; |
3137 | int r; | |
57020a3a | 3138 | |
4f2d528d LP |
3139 | assert(s); |
3140 | assert(fd >= 0); | |
3141 | ||
7f2fbbff LP |
3142 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
3143 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 3144 | |
1124fe6f | 3145 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3146 | return -EINVAL; |
3147 | ||
3148 | if (s->socket_fd >= 0) | |
3149 | return -EBUSY; | |
3150 | ||
3151 | if (s->state != SERVICE_DEAD) | |
3152 | return -EAGAIN; | |
3153 | ||
366b7db4 | 3154 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
3155 | |
3156 | if (UNIT(s)->description) { | |
3157 | _cleanup_free_ char *a; | |
3158 | ||
3159 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
3160 | if (!a) | |
3161 | return -ENOMEM; | |
3162 | ||
3163 | r = unit_set_description(UNIT(s), a); | |
3164 | } else | |
3165 | r = unit_set_description(UNIT(s), peer); | |
3166 | ||
3167 | if (r < 0) | |
3168 | return r; | |
3169 | } | |
3170 | ||
7f2fbbff LP |
3171 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); |
3172 | if (r < 0) | |
3173 | return r; | |
3174 | ||
4f2d528d | 3175 | s->socket_fd = fd; |
16115b0a | 3176 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3177 | |
57020a3a | 3178 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
7f2fbbff | 3179 | return 0; |
4f2d528d LP |
3180 | } |
3181 | ||
fdf20a31 | 3182 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3183 | Service *s = SERVICE(u); |
3184 | ||
3185 | assert(s); | |
3186 | ||
fdf20a31 | 3187 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3188 | service_set_state(s, SERVICE_DEAD); |
3189 | ||
f42806df LP |
3190 | s->result = SERVICE_SUCCESS; |
3191 | s->reload_result = SERVICE_SUCCESS; | |
5632e374 LP |
3192 | } |
3193 | ||
718db961 | 3194 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3195 | Service *s = SERVICE(u); |
41efeaec | 3196 | |
814cc562 | 3197 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3198 | } |
3199 | ||
291d565a LP |
3200 | static int service_main_pid(Unit *u) { |
3201 | Service *s = SERVICE(u); | |
3202 | ||
3203 | assert(s); | |
3204 | ||
3205 | return s->main_pid; | |
3206 | } | |
3207 | ||
3208 | static int service_control_pid(Unit *u) { | |
3209 | Service *s = SERVICE(u); | |
3210 | ||
3211 | assert(s); | |
3212 | ||
3213 | return s->control_pid; | |
3214 | } | |
3215 | ||
94f04347 | 3216 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3217 | [SERVICE_RESTART_NO] = "no", |
3218 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3219 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3220 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3221 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3222 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3223 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3224 | }; |
3225 | ||
3226 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3227 | ||
3228 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3229 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3230 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3231 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3232 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3233 | [SERVICE_NOTIFY] = "notify", |
3234 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3235 | }; |
3236 | ||
3237 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3238 | ||
e537352b | 3239 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3240 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3241 | [SERVICE_EXEC_START] = "ExecStart", | |
3242 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3243 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3244 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3245 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3246 | }; | |
3247 | ||
3248 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3249 | ||
c952c6ec LP |
3250 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3251 | [NOTIFY_NONE] = "none", | |
3252 | [NOTIFY_MAIN] = "main", | |
3253 | [NOTIFY_ALL] = "all" | |
3254 | }; | |
3255 | ||
3256 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3257 | ||
308d72dc LP |
3258 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3259 | [NOTIFY_UNKNOWN] = "unknown", | |
3260 | [NOTIFY_READY] = "ready", | |
3261 | [NOTIFY_RELOADING] = "reloading", | |
3262 | [NOTIFY_STOPPING] = "stopping", | |
3263 | }; | |
3264 | ||
3265 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3266 | ||
f42806df LP |
3267 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3268 | [SERVICE_SUCCESS] = "success", | |
3269 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3270 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3271 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3272 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3273 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 3274 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
f42806df LP |
3275 | }; |
3276 | ||
3277 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3278 | ||
87f0e418 | 3279 | const UnitVTable service_vtable = { |
7d17cfbc | 3280 | .object_size = sizeof(Service), |
718db961 LP |
3281 | .exec_context_offset = offsetof(Service, exec_context), |
3282 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3283 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3284 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3285 | |
f975e971 LP |
3286 | .sections = |
3287 | "Unit\0" | |
3288 | "Service\0" | |
3289 | "Install\0", | |
4ad49000 | 3290 | .private_section = "Service", |
71645aca | 3291 | |
034c6ed7 LP |
3292 | .init = service_init, |
3293 | .done = service_done, | |
a16e1123 | 3294 | .load = service_load, |
a354329f | 3295 | .release_resources = service_release_resources, |
a16e1123 LP |
3296 | |
3297 | .coldplug = service_coldplug, | |
034c6ed7 | 3298 | |
5cb5a6ff LP |
3299 | .dump = service_dump, |
3300 | ||
3301 | .start = service_start, | |
3302 | .stop = service_stop, | |
3303 | .reload = service_reload, | |
3304 | ||
034c6ed7 LP |
3305 | .can_reload = service_can_reload, |
3306 | ||
8a0867d6 LP |
3307 | .kill = service_kill, |
3308 | ||
a16e1123 LP |
3309 | .serialize = service_serialize, |
3310 | .deserialize_item = service_deserialize_item, | |
3311 | ||
5cb5a6ff | 3312 | .active_state = service_active_state, |
10a94420 | 3313 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3314 | |
701cc384 | 3315 | .check_gc = service_check_gc, |
701cc384 | 3316 | |
034c6ed7 | 3317 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3318 | |
fdf20a31 | 3319 | .reset_failed = service_reset_failed, |
5632e374 | 3320 | |
4ad49000 | 3321 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3322 | .notify_message = service_notify_message, |
8e274523 | 3323 | |
291d565a LP |
3324 | .main_pid = service_main_pid, |
3325 | .control_pid = service_control_pid, | |
3326 | ||
05e343b7 | 3327 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3328 | |
718db961 | 3329 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3330 | .bus_set_property = bus_service_set_property, |
3331 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3332 | |
68db7a3b | 3333 | .get_timeout = service_get_timeout, |
718db961 LP |
3334 | .can_transient = true, |
3335 | ||
c6918296 MS |
3336 | .status_message_formats = { |
3337 | .starting_stopping = { | |
3338 | [0] = "Starting %s...", | |
3339 | [1] = "Stopping %s...", | |
3340 | }, | |
3341 | .finished_start_job = { | |
3342 | [JOB_DONE] = "Started %s.", | |
3343 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3344 | }, |
3345 | .finished_stop_job = { | |
3346 | [JOB_DONE] = "Stopped %s.", | |
3347 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3348 | }, |
3349 | }, | |
5cb5a6ff | 3350 | }; |